CN103052851A - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
CN103052851A
CN103052851A CN2011800379686A CN201180037968A CN103052851A CN 103052851 A CN103052851 A CN 103052851A CN 2011800379686 A CN2011800379686 A CN 2011800379686A CN 201180037968 A CN201180037968 A CN 201180037968A CN 103052851 A CN103052851 A CN 103052851A
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CN
China
Prior art keywords
noise
fan
rotating speed
soundproof effect
control
Prior art date
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Granted
Application number
CN2011800379686A
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Chinese (zh)
Other versions
CN103052851B (en
Inventor
道簱聪
山田彰二
福井智哉
迫田健一
加贺邦彦
森刚
铃木仁一
高守辉
向山琢也
代田光宏
谷川喜则
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Publication of CN103052851A publication Critical patent/CN103052851A/en
Application granted granted Critical
Publication of CN103052851B publication Critical patent/CN103052851B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0029—Axial fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/247—Active noise-suppression

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Duct Arrangements (AREA)
  • Air-Flow Control Members (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Provided is an air conditioner which produces less noise. The indoor unit (100) of an air conditioner is provided with: a casing (1) having a suction opening (2) which is formed in the upper part thereof and also having a discharge opening (3) which is formed on the lower side of the front surface thereof; axial-flow or mixed-flow fans (20) provided side by side downstream of the suction opening (2); a heat exchanger (50) provided at a position downstream of the fans (20) and upstream of the discharge opening (3); noise detection microphones (161, 162) for detecting the noise emitted from the fans (20); control speakers (181, 182) for outputting a control sound for reducing the noise; noise deadening effect detection microphones (191, 192) for detecting the noise deadening effect achieved by the control sound; signal processing devices (201, 202) for causing the control speakers (181, 182) to output the control sound on the basis of the result of the detection by the noise detection microphones (161, 162) and by the noise deadening effect detection microphones (191, 192); and a control device (281) for individually controlling the rotational speed of the fans.

Description

Air conditioner
Technical field
The present invention relates to air conditioner, this air conditioner has been taken in fan and heat exchanger in housing, and has the muffling unit (loudspeaker and microphone) of eliminating the noise for to the sound that is produced by this fan.
Background technology
In the past, there was the air conditioner of in housing, taking in fan and heat exchanger.As such air conditioner, following scheme has been proposed (for example, with reference to patent documentation 1), " a kind of air conditioner; this air conditioner is by the body shell with air inlet and gas outlet; and the heat exchanger that sets in this body shell consists of, the place is equipped with fan unit in described gas outlet, this fan unit is a plurality of small propeller formula fans are set on the width of described gas outlet simultaneously and consist of ".This air conditioner sets fan unit at the place, gas outlet, can easily control the direction of air-flow, and the fan unit of same structure is set at the suction inlet place, has improved thus the performance of heat exchanger by increasing air quantity.
The prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2005-3244 communique (the 0012nd, 0013,0018～0021 section, Fig. 5 and Fig. 6)
Summary of the invention
The problem that invention will solve
Patent documentation 1 such air conditioner is provided with heat exchanger at the upstream side of fan unit (pressure fan).Therefore, owing to be provided with movable fan unit at air outlet side, therefore because the wind path that fan movably brings changes or the unstability of the air-flow that asymmetric suction causes causes air quantity decline or adverse current etc.And then the air stream of movement disorder enters the fan unit.
Therefore, there are the following problems for patent documentation 1 such air conditioner: the movement disorder of the air that the flow velocity of blade part (screw) peripheral part of inflow fan unit accelerates, fan unit itself becomes the sound source (becoming the reason of noise penalty) of noise.
The applicant is in order to solve above-mentioned problem, to having proposed international application (international application no PCT/JP2009/67265) with lower device, " a kind of indoor set of air conditioner, the indoor set of this air conditioner has: housing; it is formed with suction inlet on top, is formed with blow-off outlet in front surface subordinate side; The pressure fan of axial flow type or oblique flow type, it is arranged on the downstream of the suction inlet in the housing; And heat exchanger, it is arranged on the position of the upstream side of the downstream of the pressure fan in the housing and blow-off outlet, will carry out heat exchange from air and the cold-producing medium that pressure fan blows out ".
The object of the present invention is to provide a kind of air conditioner, have muffling unit (loudspeaker and microphone) in the suitable position of the air conditioner with axial flow type or oblique flow type pressure fan (fan), thus, can further suppress noise.
For the means of dealing with problems
Air conditioner of the present invention has: housing, and it is formed with suction inlet on top, and subordinate's side is formed with blow-off outlet in front; A plurality of axial flow types that the downstream of the suction inlet in housing is arranged side by side or oblique flow type fan; Heat exchanger, it is arranged on the downstream of the fan in the housing and at the upstream side of blow-off outlet, air and the cold-producing medium that blows out from fan is carried out heat exchange; Noise detection apparatus, it detects the noise that sends from fan; The control voice output, its output makes the control sound of reducing noise; The soundproof effect checkout gear, it detects the soundproof effect of control sound; Control sound generating apparatus, it makes control voice output output control sound according to the testing result of noise detection apparatus and soundproof effect checkout gear; And control device, it carries out rotating speed control individually to a plurality of fans, and the soundproof effect of control device when control sound is interfered with the noise that sends from fan controlled the rotating speed of a plurality of fans.
In addition, air conditioner of the present invention has: housing, and it is formed with suction inlet on top, and subordinate's side is formed with blow-off outlet in front; A plurality of axial flow types that the downstream of the suction inlet in housing is arranged side by side or oblique flow type fan; Heat exchanger, it is arranged on the downstream of the fan in the housing and at the upstream side of blow-off outlet, air and the cold-producing medium that blows out from fan is carried out heat exchange; The control voice output, its output makes the control sound of the reducing noise that sends from fan; Noise/soundproof effect checkout gear, its detection noise, and detect the soundproof effect of controlling sound; Control sound generating apparatus, it makes control voice output output control sound according to the testing result of noise/soundproof effect checkout gear; Control device, it carries out rotating speed control individually to a plurality of fans, and the soundproof effect of control device when described control sound is interfered with the noise that sends from fan controlled the rotating speed of a plurality of fans.
In addition, air conditioner of the present invention has: housing, and it is formed with suction inlet on top, and subordinate's side is formed with blow-off outlet in front; A plurality of axial flow types that the downstream of the suction inlet in housing is arranged side by side or oblique flow type fan; Heat exchanger, it is arranged on the downstream of the fan in the housing and at the upstream side of blow-off outlet, air and the cold-producing medium that blows out from fan is carried out heat exchange; Noise detection apparatus, it detects the noise that sends from fan; The control voice output, its output makes the control sound of reducing noise; The soundproof effect checkout gear, it detects the soundproof effect of control sound; Control sound generating apparatus, it makes control voice output output control sound according to the testing result of noise detection apparatus and soundproof effect checkout gear; Control device, it carries out rotating speed control individually to a plurality of fans ground, control device improves the rotating speed control at the rotating speed of the fan of the two ends of housing configuration, and is reduced in the rotating speed control of at least one party in the rotating speed control of rotating speed of the fan beyond the fan of two ends configuration of housing.
In addition, air conditioner of the present invention has: housing, and it is formed with suction inlet on top, and subordinate's side is formed with blow-off outlet in front; A plurality of axial flow types that the downstream of the suction inlet in housing is arranged side by side or oblique flow type fan; Heat exchanger, it is arranged on the downstream of the fan in the housing and at the upstream side of blow-off outlet, air and the cold-producing medium that blows out from fan is carried out heat exchange; The control voice output, its output makes the control sound of the reducing noise that sends from fan; Noise/soundproof effect checkout gear, its detection noise, and detect the soundproof effect of controlling sound; Control sound generating apparatus, it makes control voice output output control sound according to the testing result of noise/soundproof effect checkout gear; Control device, it carries out rotating speed control individually to a plurality of fans, control device improves the rotating speed control at the rotating speed of the fan of the two ends of housing configuration, and is reduced in the rotating speed control of at least one party in the rotating speed control of rotating speed of the fan beyond the fan of two ends configuration of housing.
The invention effect
Air conditioner of the present invention has " the noise elimination mechanism with noise detection apparatus, control voice output, soundproof effect checkout gear and control sound generating apparatus ", perhaps, " the noise elimination mechanism with control voice output, noise/soundproof effect checkout gear and control sound generating apparatus ".In addition, the air conditioner of the present invention control device that has a plurality of Air Blast fans and the rotating speed of these Air Blast fans is controlled separately.Therefore, according to soundproof effect the rotating speed of each Air Blast fan is controlled, thus, can be reduced the noise of air conditioner.
Description of drawings
Fig. 1 is the profilograph of indoor set that the air conditioner of embodiments of the present invention 1 is shown.
Fig. 2 is the stereoscopic figure of indoor set that the air conditioner of embodiments of the present invention 1 is shown.
Fig. 3 is the stereogram that the past right side of face is observed the indoor set of embodiments of the present invention 1.
Fig. 4 is the stereogram of observing the indoor set of embodiments of the present invention 1 from right side, the back side.
Fig. 5 is the stereogram of observing the indoor set of embodiments of the present invention 1 from front, left side.
Fig. 6 is the stereogram that the solidifying water pond of embodiments of the present invention 1 is shown.
Fig. 7 is the profilograph of dewfall occurrence positions that the indoor set of embodiments of the present invention 1 is shown.
Fig. 8 is the structure chart that the signal processing apparatus of embodiments of the present invention 1 is shown.
Fig. 9 is another routine profilograph of indoor set that the air conditioner of embodiments of the present invention 1 is shown.
Figure 10 is the profilograph that the indoor set of embodiments of the present invention 2 is shown.
Figure 11 is the structure chart that the signal processing apparatus of embodiments of the present invention 2 is shown.
Figure 12 is the oscillogram of the method the noise of the sound cancellation of wish after interfere calculated for explanation.
Figure 13 is the block diagram for the method for the control sound of explanation estimation embodiments of the present invention 2.
Figure 14 is another routine profilograph that the indoor set of embodiments of the present invention 2 is shown.
Figure 15 is the profilograph that the indoor set of embodiments of the present invention 3 is shown.
Figure 16 shows the performance plot of the coherence between two microphones that setting position that noise measuring microphone and soundproof effect detect microphone causes.
Figure 17 is the profilograph that the indoor set of embodiments of the present invention 4 is shown.
Figure 18 is the profilograph that the indoor set of embodiments of the present invention 5 is shown.
Figure 19 is upward view that the fan of embodiments of the present invention 5 is shown (figure that observes from the downside of Figure 18).
Figure 20 is the M-M sectional view of Figure 19.
Figure 21 is the structure chart that the signal processing apparatus of embodiments of the present invention 5 is shown.
Figure 22 is the visual and figure of the experimental result that obtains of air-flow that the fan from embodiments of the present invention 5 is blown out.
Figure 23 is the structure chart of circuit that the weighted units of embodiments of the present invention 5 is shown.
Figure 24 is the coherence that detection sound when noise measuring microphone 161 being arranged on the outside of cylindrical region S and make fan 20 work, noise measuring microphone 161 and soundproof effect detect the detection sound of microphone 191.
Figure 25 is the coherence that detection sound when being arranged on the inboard of cylindrical region S and making fan 20 work, noise measuring microphone 161 and soundproof effect detect the detection sound of microphone 191.
Figure 26 is another routine profilograph that the indoor set of embodiments of the present invention 5 is shown.
Figure 27 is the again profilograph of an example that the indoor set of embodiments of the present invention 5 is shown.
Figure 28 is the cutaway view that another installation example of the noise measuring microphone in the embodiments of the present invention 5 is shown.
Figure 29 is the profilograph that the indoor set of embodiments of the present invention 6 is shown.
Figure 30 is another routine profilograph that the indoor set of embodiments of the present invention 6 is shown.
Figure 31 is the again profilograph of an example that the indoor set of embodiments of the present invention 6 is shown.
Figure 32 is the cutaway view that another installation example of the noise measuring microphone in the present embodiment 6 is shown.
Figure 33 is the profilograph that the indoor set of embodiments of the present invention 7 is shown.
Figure 34 is the structure chart that the signal processing apparatus of embodiments of the present invention 7 is shown.
Figure 35 is the front view that the indoor set of embodiments of the present invention 8 is shown.
Figure 36 is the side view that the indoor set of embodiments of the present invention 8 is shown.
Figure 37 is the structure chart that the control device of embodiments of the present invention 8 is shown.
Figure 38 is another routine front view that the indoor set of embodiments of the present invention 8 is shown.
Figure 39 is the left side view of indoor set shown in Figure 38.
Figure 40 is the front view of the indoor set of embodiments of the present invention 9.
Figure 41 is the structure chart that the control device of embodiments of the present invention 9 is shown.
Figure 42 is another routine front view that the indoor set of embodiments of the present invention 9 is shown.
Figure 43 is the left side view of indoor set shown in Figure 42.
Figure 44 is the again front view of an example that the indoor set of embodiments of the present invention 9 is shown.
Figure 45 is the front view that the indoor set of embodiments of the present invention 10 is shown.
Figure 46 is the structure chart that the control device of embodiments of the present invention 10 is shown.
Figure 47 is the front view that the indoor set of embodiments of the present invention 11 is shown.
Figure 48 is another routine front view that the indoor set of embodiments of the present invention 11 is shown.
Figure 49 is the left side view of indoor set shown in Figure 48.
Figure 50 is the front view that the indoor set of embodiments of the present invention 12 is shown.
Figure 51 is another routine front view that the indoor set of embodiments of the present invention 12 is shown.
Figure 52 is the left side view of the indoor set shown in Figure 51.
Figure 53 is the again front view of an example that the indoor set of embodiments of the present invention 12 is shown.
Figure 54 is the front view that the indoor set of embodiments of the present invention 15 is shown.
Figure 55 is the structure chart that the control device of embodiments of the present invention 15 is shown.
Figure 56 is the structure chart that the sound deadening capacity computing unit of embodiments of the present invention 15 is shown.
Figure 57 is the front view that the indoor set of embodiments of the present invention 16 is shown.
The specific embodiment
Below, the specific embodiment of air conditioner of the present invention (more particularly being the indoor set of air conditioner) is described.In addition, in embodiment 1, the basic structure of each unit of the indoor set that consists of air conditioner is described.In addition, after embodiment 2, the detailed structure of each unit or other embodiment are described.In addition, in following each embodiment, the present invention will be described as an example of wall indoor unit example.In addition, in the figure shown in each embodiment, also exist each unit (or structure member of each unit) shape or the size etc. the different situation of part.
Embodiment 1.
＜basic structure＞
Fig. 1 is the profilograph of indoor set (being called indoor set 100) that the air conditioner of embodiments of the present invention 1 is shown.In addition, Fig. 2 is the stereoscopic figure that this indoor set is shown.In addition, in present embodiment 1 and embodiment described later, the left side of Fig. 1 front face side as indoor set 100 is described.Below, according to Fig. 1 and Fig. 2 the structure of indoor set 100 is described.
(overall structure)
This indoor set 100 makes the kind of refrigeration cycle of refrigerant circulation by utilization, provide air through air conditioning to the indoor air-conditioning subject area that waits.Indoor set 100 mainly has: housing 1, and it is formed with for the suction inlet 2 that room air is absorbed and is used for being provided to through the air of air conditioning the blow-off outlet 3 of air-conditioning subject area; Fan 20, it is accommodated in this housing 1, sucks room airs from suction inlet 2, blows out air through air conditioning from blow-off outlet 3; And heat exchanger 50, it is arranged on from fan 20 to blow-off outlet on 3 the wind path, carries out heat exchange between cold-producing medium and room air, generates thus the air through air conditioning.And, by these structural elements at the housing 1 interior wind path (arrow Z) that has been communicated with.Upper opening at housing 1 forms suction inlet 2.Form blow-off outlet 3 at the bottom of housing 1 (more particularly, the front face downside of housing 1) opening.Fan 20 is configured in the downstream of suction inlet 2 and at the upstream side of heat exchanger 50, such as being made of aerofoil fan or diagonal flow fan etc.
In addition, indoor set 100 also has control device 281, the rotating speed of control device 281 control fans 20 and upper bottom wing (vane) 70 described later and left and right towards (angle) etc.In addition, in the accompanying drawing shown in present embodiment 1 and each embodiment described later, sometimes omit the diagram of control device 281.
In the indoor set 100 that consists of like this, because fan 20 is arranged on the upstream side of heat exchanger 50, therefore compare with the indoor set that fan 20 is located at the air conditioner in the past of blow-off outlet 3, can suppress to occur the air-swirl that blows out from blow-off outlet 3 and/or produce wind speed profile uneven.Therefore, can carry comfortable wind to the air-conditioning subject area.In addition, do not have the complicated structure members such as fan at blow-off outlet 3 places, therefore when cooling operation, can easily process in the dewfall of heating installation with the border generation of cold air.In addition, the air that fan motor 30 is not exposed to through air conditioning is in cold air or the heating installation, therefore can provide long running life.
(fan)
Usually, because the space that arranges of the indoor set of air conditioner is restricted to some extent, therefore mostly can't increase fan.Therefore, in order to obtain desired air quantity, and the fan of a plurality of suitable sizes of row arrangement.As shown in Figure 2, the indoor set 100 of present embodiment 1 disposes 3 fans 20 side by side along the length direction (in other words, the length direction of blow-off outlet 3) of housing 1.In the situation of the size of present common indoor machine of air conditioner, in order to obtain desired heat-exchange capacity, about 2～4 fans 20 of preferred disposition.In the indoor set of present embodiment 1, fan 20 all constitutes identical shape, all turns round with the action rotating speed that equates, thus, can all obtain almost equal air output in the fan 20.
By such structure, according to the flowing resistance of necessary air quantity and/or indoor set 100 inside, the number of combination fan 20, shape and size etc. thus, can realize the optimum fan design corresponding with all size indoor set 100.
(horn mouth (bellmouth))
In the indoor set 100 of present embodiment 1, around fan 20, dispose the horn mouth 5 on the pipeline.Horn mouth 5 is used for smoothly guiding to the air-breathing of fan with from the exhaust of fan.As shown in Figure 1, the horn mouth 5 of present embodiment 1 is circular when overlooking.In addition, in the longitudinal section, the horn mouth 5 of present embodiment 1 is following such shape.Top 5a forms its end towards the top expansion and is roughly circular shape.Central portion 5b is the fixing linearity part of bell-mouthed diameter.Bottom 5c is that its end is towards the roughly circular shape of below expansion.And, form suction inlet 2 in the end of the top of horn mouth 5 5a (circular arc portion of suction side).
Constituting the high pipe shape of impeller of aspect ratio fan 20 at the horn mouth 5 shown in Fig. 1 of present embodiment 1, but be not limited to this, also can be the semi-open type horn mouth of the height of the height that constitutes horn mouth 5 impeller that is lower than fan 20.In addition, horn mouth 5 also can be only be made of 5a, the 5c of end, and does not have the linearity part of 5b shown in Figure 1.
In addition, in order to cut down the part number and to improve intensity, horn mouth 5 for example can form with housing 1.In addition, for example can be with modularizations such as horn mouth 5, fan 20 and fan motors 30, to be made as and with they structures in housing 1 loading and unloading, to improve maintainable.
In addition, in present embodiment 1, the end of the top 5a of horn mouth 5 (circular arc portion of suction side) with respect to the opening surface of horn mouth 5 circumferentially, consist of with uniform shapes.That is, with respect to the direction of rotation centered by the rotating shaft 20a of fan 20, horn mouth 5 does not have the structures such as otch or flange, is the uniform shape with axial symmetry.
By such formation horn mouth 5, the end of the top 5a of horn mouth 5 (circular arc portion of suction side) therefore also can realize uniform air-flow as the suction air-flow of fan 20 with respect to the uniform shape of rotating to be of fan 20.Therefore, can reduce the noise that the bias current because of the suction air-flow of fan 20 produces.
(about dividing plate)
As shown in Figure 2, the indoor set 100 of present embodiment 1 is provided with dividing plate 90 between the fan 20 of adjacency.These dividing plates 90 are arranged between heat exchanger 50 and the fan 20.That is, the wind path between heat exchanger 50 and the fan 20 is split into a plurality of wind paths (being 3 in present embodiment 1).Because dividing plate 90 is arranged between heat exchanger 50 and the fan 20, so the end of a side of joining with heat exchanger 50 becomes along the shape of heat exchanger 50.More particularly, as shown in Figure 1, (that is, observe the longitudinal section of indoor set 100 from the right side in the front face side from indoor set 100 to the longitudinal section of rear side.Below, be called the longitudinal section, right side) in, heat exchanger 50 is configured to roughly Λ type.Therefore, heat exchanger 50 side ends of dividing plate 90 also become roughly Λ type.
In addition, for example can adopt following method to determine the position of fan 20 side ends of dividing plate 90.So that the fan 20 of adjacency fully separates in the suction side in the situation of the degree that does not exert an influence each other, the exit face that the end of fan 20 sides of dividing plate 90 arrives fan 20 gets final product.But, at the fan 20 of adjacency in the suction side near to the degree that exerts an influence each other and the shape of the end (circular arc portion of suction side) of the top 5a of horn mouth 5 is formed in the enough large situation, can be with the end of fan 20 sides of dividing plate 90, extend the upstream side (suction side) be set to fan 20, so that not on the wind path of adjacency exert an influence (so that the fan of adjacency 20 can not affect each other in the suction side).
In addition, dividing plate 90 can be formed by various materials.For example, can use the metals such as steel or aluminium to form dividing plate 90.In addition, such as also using resin etc. to form dividing plate 90.But, owing to becoming high temperature heating when running heat exchanger 50, be in the situation about forming of the material by low melting points such as resins at dividing plate 90 therefore, between dividing plate 90 and heat exchanger 50, form a little the space and get final product.Be in the situation of the high material of the melting points such as aluminium or steel at dividing plate 90, can be configured to dividing plate 90 and contact with heat exchanger 50.In the situation that heat exchanger 50 is fin tube type heat exchangers for example, can between the fin of heat exchanger 50, insert dividing plate 90.
As mentioned above, the wind path between heat exchanger 50 and the fan 20 is divided into a plurality of wind paths (being 3 in present embodiment 1).In this wind path, namely in dividing plate 90 or housing 1 etc., sound-absorbing material is set, can also be reduced in the noise that produces in the pipeline.
In addition, the wind path after these are cut apart forms that the length of side is the roughly quadrangle shape of L1 and L2 when overlooking.That is, the amplitude of the wind path after cutting apart is L1 and L2.Therefore, for example be arranged on the air quantity that the fan 20 of the roughly quadrangle shape inside that is formed by L1, L2 produces, reliably by the heat exchanger 50 by the zone that is surrounded by L1, L2 that is positioned at fan 20 downstreams.
Like this, wind path in the housing 1 is divided into a plurality of wind paths, thus, even if the flow field (flow field) that fan 20 forms in the downstream has the eddy current composition, the air that blows out from each fan 20 can not be freely mobile on the length direction of indoor set 100 (Fig. 1 direction) vertical with paper.Therefore, can make the heat exchanger 50 in air that fan 20 the blows out zone that is surrounded by L1, L2 by being arranged in these fan 20 downstreams.Consequently, can control the deviation that the air quantity on the length direction at indoor set 100 (among Fig. 1 direction) vertical with paper of inflow heat exchanger 50 integral body distributes, can have higher heat exchange performance.In addition, in 1 interior partition of housing, thus, between the fan 20 that is adjacent to each other, can prevent the interference with the eddy current of fan 20 generations of adjacency with dividing plate 90.Therefore, the energy loss of the fluid that causes can be suppressed to interfere between the eddy current, in conjunction with the improvement of wind speed profile, the pressure loss of indoor set 100 can be reduced.In addition, each dividing plate 90 is not to be formed by a plate, can be formed by a plurality of plates yet.For example, can dividing plate 90 be divided into two parts according to front face side heat exchanger 51 sides and rear side heat exchanger 55 sides.Certainly preferably the joint between each plate that consists of dividing plate 90 is very close to each other.A plurality of by dividing plate 90 is divided into, can improve the assembleability of dividing plate 90.
(fan motor)
Fan 20 is driven by fan motor 30 and rotates.Employed fan motor 30 can be inner-rotor type, can be also to be outer-rotor type.In the situation of the fan motor 30 of outer-rotor type, make the fan motor of the structure (making wheel hub 21 have rotor) that the wheel hub 21 of rotor and fan 20 becomes one.In addition, make the size of fan motor 30 less than the size of the wheel hub 21 of fan 20, thus, can prevent from the air-flow that fan 20 produces is brought loss.In addition, by the inside at wheel hub 21 motor is set, can also dwindles axial dimension.Make fan motor 30 and fan 20 become the structure of easy loading and unloading, can improve maintainability thus.
In addition, the higher DC brushless motor of use cost is as fan motor 30, and raising, long lifetime and controlled raising that can implementation efficiency still, adopt other forms of motor certainly also can satisfy major function as air conditioner.In addition, fan motor 30 drive with circuit can with fan motor 30 one, also can externally consist of, and implement dustproof, fire Countermeasure.
Fan motor 30 is installed in the housing 1 by support of motor 16.In addition, if fan motor 30 is made as box (with the modularization integratedly such as fan 20, basket, fan motor 30, horn mouth 5 and support of motor 16) for CPU cooling etc., becoming can be at the structure of housing 1 loading and unloading, then can improve maintainability, and improve the precision in gap (tip clearance) between the leaf of fan 20.Usually, the gap is narrow between preferred leaf, and wind pushing performance is high like this.
In addition, the drive circuit of fan motor 30 can in fan motor 30 inner formations, also can externally consist of.
(support of motor)
Support of motor 16 has fixed part 17 and support component 18.Fixed part 17 is used for provided with fan motor 30.Support component 18 is parts of fixing to housing 1 for fixed part 17.Support component 18 is for example bar-shaped, is configured to peripheral part from fixed part 17 for example with radiated entends.As shown in Figure 1, the support component 18 of present embodiment 1 is configured to roughly extend in the horizontal direction.In addition, support component 18 also can be used as wing or tabular and static wing effect (stator vane effect) is provided.
(heat exchanger)
The heat exchanger 50 of the indoor set 100 of present embodiment 1 is configured in the lower wind direction side of fan 20.This heat exchanger 50 is such as using fin tube type heat exchanger etc.As shown in Figure 1, heat exchanger 50 is separated by line of symmetry 50a in the longitudinal section, right side.Line of symmetry 50a is cut apart in substantial middle section the scope that arranges of the heat exchanger 50 in this cross section at left and right directions.That is, front face side heat exchanger 51 is configured in front face side (the paper left side of Fig. 1) with respect to line of symmetry 50a, and rear side heat exchanger 55 is configured in rear side (the paper right side of Fig. 1) with respect to line of symmetry 50a.And, in the mode of the interval between front face side heat exchanger 51 and the rear side heat exchanger 55 with respect to the flow direction expansion of air, namely the cross sectional shape with heat exchanger 50 in the longitudinal section, right side becomes the roughly mode of Λ type, and front face side heat exchanger 51 and rear side heat exchanger 55 are configured in the housing 1.That is, front face side heat exchanger 51 and rear side heat exchanger 55 are configured to have gradient with respect to the flow direction of the air that provides from fan 20.
In addition, heat exchanger 50 is characterised in that, the wind path area of rear side heat exchanger 55 is greater than the wind path area of front face side heat exchanger 51.That is, the air quantity of the rear side heat exchanger 55 of heat exchanger 50 is greater than the air quantity of front face side heat exchanger 51.In present embodiment 1, in the longitudinal section, right side, the length direction length of the Length Ratio front face side heat exchanger 51 of the length direction of rear side heat exchanger 55 is long.Thus, the wind path area of rear side heat exchanger 55 is greater than the wind path area of front face side heat exchanger 51.In addition, other structures of front face side heat exchanger 51 and rear side heat exchanger 55 (length of the depth direction among Fig. 1 etc.) equate.That is, the heat transfer area of rear side heat exchanger 55 is greater than the heat transfer area of front face side heat exchanger 51.In addition, the rotating shaft 20a of fan 20 is arranged on the top of line of symmetry 50a.
By such formation heat exchanger 50, compare with the indoor set of the air conditioner in the past that fan is set at blow-off outlet, can suppress the generation of the air-swirl that blows out from blow-off outlet 3 and the generation of wind speed profile.In addition, by such formation heat exchanger 50, can make the air quantity of rear side heat exchanger 55 greater than the air quantity of front face side heat exchanger 51.And, because this air quantity is poor, when the air by front face side heat exchanger 51 and rear side heat exchanger 55 converges respectively, the air diverts front face side after this converges (blow-off outlet 3 sides).Therefore, needn't near blow-off outlet 3, air-flow be turned to sharp, can be reduced near the pressure loss the blow-off outlet 3.
In addition, in the indoor set 100 of present embodiment 1, the flow direction of the air that flows out from rear side heat exchanger 55 becomes flowing from rear side to front face side.Therefore, the indoor set 100 of present embodiment 1 with in the situation that in the longitudinal section, right side heat exchanger 50 is configured to roughly V-shaped and compares, can be easier to make the flow divert of the air that has passed through heat exchanger 50.
Indoor set 100 has a plurality of fans 20, so weight easily becomes heavy.If indoor set 100 becomes heavy, then need to have necessary intensity for the wall that indoor set 100 is installed, installing to some extent restriction.Therefore, preferably realize the lightweight of heat exchanger 50.In addition, indoor set 100 is at the upstream side configuration fan 20 of heat exchanger 50, so the height dimension of indoor set 100 increases the restriction that easy generation is installed.Therefore, preferably make heat exchanger 50 lightweights.In addition, also preferably make heat exchanger 50 miniaturizations.
Therefore, in present embodiment 1, use fin tube type heat exchanger as heat exchanger 50(front face side heat exchanger 51 and rear side heat exchanger 55), realize the miniaturization of heat exchanger 50.More particularly, the heat exchanger 50 of present embodiment 1 has across the predetermined stacked a plurality of fins 56 in gap, and a plurality of heat-transfer pipes 57 that connect these fins 56.In present embodiment 1, at the upper stacked fin 56 of the left and right directions (direction vertical with paper of Fig. 1) of housing 1.That is, heat-transfer pipe 57 connects fin 56 along the left and right directions (direction vertical with paper of Fig. 1) of housing 1.In addition, in present embodiment 1, in order to improve the heat exchanger effectiveness of heat exchanger 50, at direction of ventilation (width of fin 56) the configuration two biographies heat pipes 57 of heat exchanger 50.These heat-transfer pipes 57 are configured to be roughly staggered shape in the longitudinal section, right side.
In addition, (about diameter 3mm～7mm) pipe with thinner diameter consists of heat-transfer pipe 57, as the cold-producing medium that in heat-transfer pipe 57, flows (at indoor set 100 and have the cold-producing medium that uses in the air conditioner of this indoor set 100), thus, can realize the miniaturization of heat exchanger 50 with R32.That is, heat exchanger 50 carries out heat exchange by 56 pairs of cold-producing medium and room airs in the internal flow of heat-transfer pipe 57 of fin.Therefore, in the situation that adopts thinner heat-transfer pipe 57, compare with the heat exchanger that the heat transfer caliber is thicker, for same circulating mass of refrigerant, the pressure loss of cold-producing medium increases.Yet R32 compares with R410A, and evaporation latent heat is large under same temperature, can be with the identical ability of circulating mass of refrigerant performance still less.Therefore, by using R32, can cut down employed refrigerant amount, can in heat exchanger 50, reduce the pressure loss.Therefore, consist of heat-transfer pipe 57 by using thinner pipe, and use R32 as cold-producing medium, can make heat exchanger 50 miniaturizations.
In addition, in the heat exchanger 50 of present embodiment 1, form fin 56 and heat-transfer pipe 57 with aluminum or aluminum alloy, can realize thus the lightweight of heat exchanger 50.In addition, can not restrict in the situation of installation in the weight of heat exchanger 50, can certainly consist of heat-transfer pipe 57 with copper.
(finger guard device and filter)
In addition, the indoor set 100 of present embodiment 1 is provided with finger guard device 15 and filter 10 at suction inlet 2.The purpose that finger guard device 15 is set is the fan 20 that makes hand can not touch rotation.Therefore, as long as make hand can not touch fan 20, the shape of finger guard device 15 can be shape arbitrarily.For example, the shape of finger guard device 15 can be clathrate, also can be the circle that is made of a plurality of rings that vary in size.In addition, finger guard device 15 can consist of with materials such as resins and also can consist of with metal material, still, in the situation that desired strength wishes to consist of with metal.In addition, from reducing flowing resistance and keep the viewpoint of intensity, finger guard device 15 preferably try one's best material or shape thin, that intensity is large.Filter 10 is set flows into indoor set 100 inside in order to prevent dust.Filter 10 loading and unloading are arranged in the housing 1 freely.In addition, although not shown,, the indoor set 100 of present embodiment 1 also can have the automatic clearing mechanism of automatically filter 10 being swept.
(the wind direction control wing)
In addition, the indoor set 100 of present embodiment 1 is namely gone up bottom wing 70 and left and right (not shown) in the mechanism that blow-off outlet 3 is provided with the blow-off direction of control air-flow.
(solidifying water pond)
Fig. 3 is the stereogram that the past right side of face is observed the indoor set of embodiments of the present invention 1.Fig. 4 is the stereogram of observing this indoor set from right side, the back side.Fig. 5 is the stereogram of observing this indoor set from front, left side.In addition, Fig. 6 is the stereogram that the solidifying water pond of embodiments of the present invention 1 is shown.In addition, for the ease of understanding the shape of solidifying water pond, in Fig. 3 and Fig. 4, the right side of indoor set 100 is shown with section, the left side of indoor set 100 is shown with section in Fig. 5.
The below of the bottom of side heat exchanger 51 (the front face side end of front face side heat exchanger 51) is provided with the solidifying water pond 110 of front face side in front.The below of the bottom of side heat exchanger 55 (the rear side end of rear side heat exchanger 55) is provided with the solidifying water pond 115 of rear side overleaf.In addition, in present embodiment 1, the solidifying water pond 115 of rear side forms with the back part 1b of housing 1.In the solidifying water pond 115 of this rear side, be connected both sides with right-hand end in left end and be provided with for the connector 116 that connects drainpipe 117.In addition, needn't connect to the both sides of connector 116 drainpipe 117, connect drainpipes 117 to a side's wherein connector 116 and get final product.For example, when carrying out the installation exercise of indoor set 100, to draw in the situation of drainpipe 117 to the right side of indoor set 100, connector 116 to the overleaf right-hand end setting of the solidifying water pond 115 of side connects drainpipes 117, and the connector 116 that is arranged on the left end of the solidifying water pond 115 of rear side with obstructions such as rubber caps gets final product.
The solidifying water pond 110 of front face side is configured in the position higher than the solidifying water pond of rear side 115.In addition, between the solidifying water pond 110 of side and the solidifying water pond 115 of rear side, be provided as the drainage path 111 of the mobile route of draining the both sides of left end and right-hand end in front.Drainage path 111 is configured to, and the end of front face side is connected with the solidifying water pond 110 of front face side, and tilts downwards towards the solidifying water pond 115 of rear side from the solidifying water pond 110 of front face side.In addition, be formed with tongue 111a in the end of the rear side of drainage path 111.The end of the rear side of drainage path 111 is configured to cover the upper surface of the solidifying water pond 115 of rear side.
When room air is cooled in heat exchanger 50 when cooling operation, in heat exchanger 50 dewfall occurs.Then, the dew that is attached on the front face side heat exchanger 51 drips from the bottom of front face side heat exchanger 51, is reclaimed by the solidifying water pond 110 of front face side.The dew that is attached on the rear side heat exchanger 55 drips from the bottom of rear side heat exchanger 55, is recovered in the solidifying water pond 115 of rear side.
In addition, in present embodiment 1, the solidifying water pond 110 of front face side is arranged on the position higher than the solidifying water pond of rear side 115, the draining that therefore is recovered in the solidifying water pond 110 of side is in front flowed at drainage path 111 towards solidifying water pond 115 1 sides of rear side.Then, this draining is dripped to the solidifying water pond 115 of rear side from the tongue 111a of drainage path 111, is recovered in the solidifying water pond 115 of rear side.Be recovered in draining in the solidifying water pond 115 of rear side by drainpipe 117 to housing 1(indoor set 100) the outside discharge.
As present embodiment 1, the solidifying water pond 110 of front face side is arranged on the position higher than the solidifying water pond of rear side 115, thus, the draining of reclaiming can be gathered the solidifying water pond that the solidifying water pond 115(of rear side is configured in the rear side of housing 1 in two solidifying water ponds).Therefore, by the connector 116 of drainpipe 117 is set on the solidifying water pond 115 of side overleaf, the draining that is recovered in the solidifying water pond 110 of front face side and the solidifying water pond 115 of rear side can be discharged to the outside of housing 1.Therefore, the situation of safeguarding (cleaning of heat exchanger 50 etc.) of carrying out indoor set 100 at the front face of opening housing 1 etc. is inferior, need not load and unload the solidifying water pond that is connected with drainpipe 117 etc., has improved the workability of safeguarding etc.
In addition, owing to the both sides of left end and right-hand end drainage path 111 being set, even if therefore under the state that tilts, indoor set 100 is set, also can reliably the draining that is recovered in the solidifying water pond 110 of front face side be derived to the solidifying water pond 115 of rear side.In addition, owing to being connected both sides with right-hand end in left end the connector that connects drainpipe 117 is set, therefore can selects according to the mounting condition of indoor set 100 direction of drawing of pipe, improved the workability when indoor set 100 is set.In addition, because the top that drainage path 111 is configured to cover the solidifying water pond 115 of rear side (namely, owing between drainage path 111 and the solidifying water pond 115 of rear side, not needing bindiny mechanism), therefore can easily load and unload the solidifying water pond 110 of front face side, further improved maintainability.
In addition, also drainage path 111 can be configured to, the solidifying water pond 115 of end and rear side of the rear side of drainage path 111 is connected, front face side is coagulated the top that water pond 110 covers drainage path 111.In such structure, also can access and be configured to drainage path 111 and cover the same effect of the structure of top of the solidifying water pond 115 of rear side.In addition, the solidifying water pond 110 of front face side is not must be than solidifying water pond 115 height of rear side, even if the solidifying water pond 110 of front face side and the solidifying water pond 115 of rear side are identical height, also can be recovered in the drainpipe discharge of drainings from being connected with the solidifying water pond 115 of rear side of two solidifying water ponds.
(nozzle)
In addition, the indoor set 100 of present embodiment 1 constitutes, in the longitudinal section, right side, the opening length d 1(of the entrance side of the nozzle 6 in front solidifying water pond 110 of side and rear side coagulates constriction length d 1 between the solidifying water pond that defines between water pond 115 parts) greater than the length of the opening length d 2(blow-off outlet 3 of the outlet side of nozzle 6).That is, the nozzle 6 of indoor set 100 becomes the shape (with reference to Fig. 1) of d1＞d2.
The shape that nozzle 6 becomes d1＞d2 is because following reason.In addition, because d2 can affect the attainability of the air-flow of one of basic function as indoor set, therefore, below the d2 of the indoor set 100 of present embodiment 1 is made as is that length with the blow-off outlet same degree of in the past indoor set describes.
Be made as d1＞d2 by the shape with the nozzle 6 in the longitudinal section, can increase the wind path of air, and, can increase the angle A (front face side heat exchanger 51 and rear side heat exchanger 55 angulations in the downstream of heat exchanger 50) at the heat exchanger 50 of upstream side configuration.Therefore, the wind speed profile that produces is relaxed, and increase the wind path of air in the downstream of heat exchanger 50, therefore can reduce the pressure loss of indoor set 100 integral body.In addition, can make by the effect of contracted flow near the uneven homogenising of the wind speed profile that the entrance of nozzle 6, produces, and guide to blow-off outlet 3.
For example in the situation of d1=d2, near the inequality of the wind speed profile that produces the entrance of nozzle 6 (for example, the deflection rear side flows) directly becomes in the wind speed profile at blow-off outlet 3 places uneven.That is, in the situation that d1=d2, from blow-off outlet 3 to have the state blow out air of wind speed profile inequality.In addition, for example in the situation that d1＜d2, when the air by front face side heat exchanger 51 and rear side heat exchanger 55 converged near the entrance of nozzle 6, the contracted flow loss increased.Therefore, in the situation of d1＜d2, if can't obtain the diffusion effect of blow-off outlet 3, the loss of contracted flow loss (flow contraction loss) part occurs then.
（ANC）
In addition, as shown in Figure 1, the indoor set 100 of present embodiment 1 is provided with active noise elimination mechanism.
More particularly, the noise elimination mechanism of the indoor set 100 of present embodiment 1 is made of noise measuring microphone 161, control loudspeaker 181, soundproof effect detection microphone 191 and signal processing apparatus 201.Noise measuring microphone 161 is to detect to comprise the air-supply sound of fan 20 at the noise detection apparatus of the operating sound (noise) of interior indoor set 100.This noise measuring microphone 161 is configured between fan 20 and the heat exchanger 50.In present embodiment 1, be arranged on the front face in the housing 1.Control loudspeaker 181 is for the control voice output of output needle to the control sound of noise.This control loudspeaker 181 is configured in the downside of noise measuring microphone 161, and is configured in the upside of heat exchanger 50.In present embodiment 1, the front face in housing 1 arranges in the mode towards wind path central authorities.Soundproof effect detection microphone 191 is the soundproof effect checkout gears for detection of the soundproof effect of control sound.This soundproof effect detects microphone 191 and is arranged near the blow-off outlet 3, in order to detect the noise that spreads out of from blow-off outlet 3.In addition, soundproof effect detects microphone 191 and is installed in the position of avoiding the wind path flow direction, in order to from blow-off outlet 3 blow out air out do not conflict mutually.Signal processing apparatus 201 is the testing results according to noise measuring microphone 161 and soundproof effect detection microphone 191, makes the control sound generating apparatus of control loudspeaker 181 output control sound.Signal processing apparatus 201 for example is incorporated in the control device 281.
Fig. 8 is the structure chart that the signal processing apparatus of embodiments of the present invention 1 is shown.The signal of telecommunication that detects microphone 191 inputs from noise measuring microphone 161 and soundproof effect is amplified by microphone amplifier 151, and is data signal by A/D converter 152 from analog signal conversion.Data signal after the conversion is imported into FIR wave filter 158 and LMS algorithm device 159.In FIR wave filter 158, generate control signal, this control signal applied so that the noise that is detected by noise measuring microphone 161 with arrive noise when soundproof effect being set detecting the place of microphone 191 and become the correction of same-amplitude and opposite phase, and, after being converted to analog signal by D/A converter 154 from data signal, amplify by amplifier 155, from control loudspeaker 181 conduct control voice outputs.
As shown in Figure 7, when air conditioner carries out cooling operation etc., the regional B between heat exchanger 50 and blow-off outlet 3 is because cold air and drop in temperature, occurs therefore that airborne steam becomes water droplet and phenomenon that dewfall occurs.Therefore, in indoor set 100, be attached with (not shown) such as water butts at blow-off outlet 3, so that water droplet does not flow out from blow-off outlet 3.In addition, namely dispose the zone of noise measuring microphone 161 and control loudspeaker 181 in the upstream of heat exchanger 50, be positioned at the upstream in the zone of being cooled off by cold air, therefore do not produce dewfall.
Then, the inhibition method of the operating sound of indoor set 100 described.By being installed in the noise measuring microphone 161 between fan 20 and the heat exchanger 50, the air-supply sound that comprises fan 20 in the detection indoor set 100 is at interior operating sound (noise), and be converted into data signal via microphone amplifier 151, A/D converter 152, be input to FIR wave filter 158 and LMS algorithm device 159.
The tap coefficient of FIR wave filter 158 is upgraded one by one by LMS algorithm device 159.In LMS algorithm device 159, according to formula 1(h(n+1)=h(n)+2 μ e(n) x(n)) come updating of tap coefficients, upgrade best tap coefficient, so that error signal e is close to zero.
Wherein, h represents the tap coefficient of wave filter, and e represents error signal, and x represents filter input signal, and μ represents the step size parameter, and step size parameter μ is used for the filter factor renewal amount of each sampling of control.
Like this, in D/A converter 154, be converted into analog signal having been upgraded the data signal of passing through in the FIR wave filter 158 of tap coefficient by LMS algorithm device 159, and be exaggerated device 155 and amplify, and output to the interior wind path of indoor set 100 from being installed in control loudspeaker 181 between fan 20 and the heat exchanger 50 as control sound.
On the other hand, lower end at indoor set 100, detect microphone 191 with the soundproof effect that is not installed on the lateral wall direction of blow-off outlet 3 with the afoul mode of the wind of emitting from blow-off outlet 3, detect make from the control sound of control loudspeaker 181 outputs with propagate by wind path from fan 20 and interfere from the noise that blow-off outlet 3 sends after sound.In the error signal owing to the above-mentioned LMS algorithm device 159 of Speech input that is detected by soundproof effect detection microphone 191, therefore, the tap coefficient of FIR wave filter 158 is updated, so that the Sound close after should interfering is in zero.Consequently, can utilize the control sound that has passed through FIR wave filter 158 to suppress near the blow-off outlet 3 noise.
Like this, in the indoor set 100 of having used active sound reduction method, noise measuring microphone 161 and control loudspeaker 181 are configured between fan 20 and the heat exchanger 50, soundproof effect are detected microphone 191 be installed in not with wind path from blow-off outlet 3 and flow to afoul place.Therefore, the necessary parts that active noise elimination is not installed in the regional B that dewfall occurs gets final product, therefore can prevent that water droplet is attached to control loudspeaker 181, noise measuring microphone 161 and soundproof effect and detects on the microphone 191, can prevent the fault of the decline of acoustic attenuation performance or loudspeaker, microphone.
In addition, the installation site at the noise measuring microphone 161 shown in the present embodiment 1, control loudspeaker 181 and soundproof effect detection microphone 191 is an example.For example, as shown in Figure 9, also can with noise measuring microphone 161 and control loudspeaker 181, soundproof effect be detected microphone 191 be configured between fan 20 and the heat exchanger 50.In addition, enumerated microphone as to noise or eliminated the example of the detecting unit that soundproof effect behind the noise detects by control sound, still, also can have been consisted of by the acceleration transducer that detects hull vibration etc.In addition, also sound understanding can be the disorder of Air Flow, with noise or to have eliminated the soundproof effect detection behind the noise by control sound be the disorder of Air Flow.That is, as having eliminated the detecting unit that the soundproof effect behind the noise detects to noise or by control sound, can use the flow sensor that detects Air Flow, hot wire probe etc.Also can improve the gain of microphone, detect Air Flow.
In addition, in present embodiment 1, FIR wave filter 158 and LMS algorithm device 159 in signal processing apparatus 201, have been used, but, so long as the Sound close that is detected by soundproof effect detection microphone 191 is got final product in zero self-adaptive signal processing circuit, can utilize the filtered-X algorithm that in active sound reduction method, usually adopts.In addition, signal processing apparatus 201 also can constitute according to fixing tap coefficient and generate control sound, and is not Adaptive Signal Processing.In addition, signal processing apparatus 201 can be analog signal processing circuit also, and is not digital signal processing circuit.
In addition, in present embodiment 1, put down in writing for the situation that has configured the air cooled heat exchanger 50 that produces dewfall, but, also can in the situation that configures the heat exchanger 50 that does not produce the dewfall degree, use, has following effect: no matter can whether dewfall ground occur heat exchanger 50, prevent the hydraulic performance decline of noise measuring microphone 161, control loudspeaker 181 and soundproof effect detection microphone 191 etc.
Embodiment 2.
Below, other embodiments of active sound reduction method are described.In addition, in present embodiment 2, use identical label to narrate to the function identical with embodiment 1 or structure.
Figure 10 is the profilograph that the indoor set of embodiments of the present invention 2 is shown.In addition, Figure 10 is with the right side of the figure front face side as indoor set 100.
The indoor set 100 of record in the present embodiment 2 is with the difference of the indoor set 100 of embodiment 1, in the indoor set 100 of in embodiment 1, putting down in writing, use noise measuring microphone 161 and soundproof effect detection microphone 191 these two microphones of being used for carrying out active noise elimination, controlled the generation of sound by signal processing apparatus 201, and in the indoor set 100 of present embodiment 2, it is that noise/soundproof effect detects microphone 211 that these two microphones are replaced into a microphone.In addition, correspondingly the method for signal processing is different therewith, thereby the content of signal processing apparatus 204 is different.
Output needle to the control loudspeaker 181 of the control sound of noise to be disposed at the wall section of fan 20 downsides towards the mode of wind path central authorities from wall, and, dispose noise/soundproof effect at its downside and detect microphone 211, its for detection of make from the control sound of control loudspeaker 181 outputs with propagate by wind path from fan 20 and interfere from the noise that blow-off outlet 3 spreads out of after sound.Control loudspeaker 181 and noise/soundproof effect detects microphone 211 and is installed between fan 20 and the heat exchanger 50.
The output signal that noise/soundproof effect detects microphone 211 is imported into as the signal processing apparatus 204 for the control sound generation unit that generates the signal (control sound) that control loudspeaker 181 is controlled.
Figure 11 is the structure chart that the signal processing apparatus of embodiments of the present invention 2 is shown.The structure chart of signal processing apparatus 204 is shown.Detect microphone 211 by noise/soundproof effect and amplified by microphone amplifier 151 from the signal of telecommunication that voice signal conversion obtains, and be data signal by A/D converter 152 from analog signal conversion.Data signal after the conversion is transfused to LMS algorithm device 159, and this data signal is imported into FIR wave filter 158 and LMS algorithm device 159 with the differential signal of the signal that output signal and FIR wave filter 160 convolution of FIR wave filter 158 are obtained.Then, implement convolution algorithm based on the tap coefficient that is calculated by LMS algorithm device 159 by the 158 pairs of differential signals of FIR wave filter, then, be converted to analog signal by D/A converter 154 from data signal, be exaggerated device 155 amplifications, and exporting from control loudspeaker 181 as control sound.
Then, the inhibition method of the operating sound of indoor set 100 described.Make control sound from control loudspeaker 181 output to the sound of the air-supply sound that comprises fan 20 after interior operating sound (noise) is interfered the indoor set 100, detect microphone 211 and detect by being installed in noise between fan 20 and the heat exchanger 50/soundproof effect, and become data signal via microphone amplifier 151, A/D converter 152.
In order to carry out the inhibition method equal with the inhibition method of the operating sound of in embodiment 1, recording and narrating, need in FIR wave filter 158, input and want the noise of eliminating the noise, and such as shown in Equation 1, in LMS algorithm device 159 input make as input signal want the noise of eliminating the noise with as the sound after the control interference of sound of error signal.But, detect in the microphone 211 at noise/soundproof effect, owing to can only detect the sound that makes after the control interference of sound, therefore need to generate and want the noise of eliminating the noise according to detected sound that microphone 211 detects by noise/soundproof effect.
Figure 12 be waveform that noise and the sound of control after the interference of sound are shown (among Figure 12 a), the figure of the waveform (c among Figure 12) of the waveform (b among Figure 12) of control sound and noise.According to the voice technique principle, obtain b+c=a, therefore, in order to obtain c according to a, can obtain c by the difference of getting a and b.That is, can be according to the difference that is detected sound and control sound after the interference that microphone 211 detects by noise/soundproof effect, generate and want the noise of eliminating the noise.
Figure 13 illustrates from the control signal of FIR wave filter 158 outputs to become control sound and from control loudspeaker 181 outputs, then detect the also figure in the path of input signal treating apparatus 204 by noise/soundproof effect detection microphone 211.Expression via from D/A converter 154, amplifier 155, control loudspeaker 181 to noise/soundproof effect detects the path of microphone 211, and detects microphone 211, microphone amplifier 151 and A/D converter 152 via noise/soundproof effect.
If the transmission characteristic that this path is had is made as H, then the FIR wave filter 160 of Figure 11 is used for estimating this transmission characteristic H.Output signal and FIR wave filter 160 by FIR wave filter 158 carry out convolution algorithm, control sound can be estimated as by noise/soundproof effect and detect the signal b that microphone 211 detects, ask for again and the difference that is detected the sound a after the interference that microphone 211 detects by noise/soundproof effect, generate thus and want the noise c that eliminates the noise.
The noise c that eliminates the noise that wants that generates like this is provided to LMS algorithm device 159 and FIR wave filter 158 as input signal.The data signal of having passed through to have been upgraded by LMS algorithm device 159 the FIR wave filter 158 of tap coefficient is converted to analog signal by D/A converter 154, and be exaggerated device 155 and amplify, spread out of the interior wind path of indoor set 100 from being installed in control loudspeaker 181 between fan 20 and the heat exchanger 50 as control sound.
On the other hand, detect in the microphone 211 at the noise that is installed in control loudspeaker 181 downsides/soundproof effect, detect make from the control sound of control loudspeaker 181 outputs with propagate by wind path from fan 20 and interfere from the noise that blow-off outlet 3 spreads out of after sound.Input detects the sound that microphone 211 detects by noise/soundproof effect in the error signal of above-mentioned LMS algorithm device 159, therefore, upgrades the tap coefficient of FIR wave filter 158, so that the Sound close after should interfering is in zero.Consequently, can utilize the control sound that has passed through FIR wave filter 158 to suppress near the blow-off outlet 3 noise.
Like this, in the indoor set 100 of having used active sound reduction method, noise/soundproof effect detection microphone 211 and control loudspeaker 181 are configured between fan 20 and the heat exchanger 50, thus, the necessary parts of active noise elimination can be installed in the regional B that dewfall occurs, therefore can prevent that water droplet is attached to control loudspeaker 181, noise/soundproof effect detects microphone 211, and can prevent the fault of the decline of acoustic attenuation performance and loudspeaker, microphone.
In addition, in present embodiment 2, noise/soundproof effect is detected the upstream side that microphone 211 is configured in heat exchanger 50, still, also can be configured in as shown in Figure 14 the lower end of indoor set 100, not with the afoul place of the wind that blows out from blow-off outlet 3 (avoiding the position that wind path flows to).In addition, enumerated microphone as to noise or eliminated the example of the detecting unit that soundproof effect behind the noise detects by control sound, still, also can have been consisted of by the acceleration transducer that detects hull vibration etc.In addition, also sound understanding can be the disorder of Air Flow, with noise or to have eliminated the soundproof effect detection behind the noise by control sound be the disorder of Air Flow.That is, as having eliminated the detecting unit that the soundproof effect behind the noise detects to noise or by control sound, can use the flow sensor that detects Air Flow, hot wire probe etc.Also can improve the gain of microphone, detect Air Flow.
In addition, in present embodiment 2, use FIR wave filter 158 and LMS algorithm device 159 as the self-adaptive signal processing circuit of signal processing apparatus 204, but, so long as the Sound close that detects is got final product in zero self-adaptive signal processing circuit, can utilize the filtered-X algorithm that in active sound reduction method, usually adopts in noise/soundproof effect detection microphone 211.In addition, signal processing apparatus 204 also can constitute according to fixing tap coefficient and generate control sound, and is not Adaptive Signal Processing.In addition, signal processing apparatus 204 can be analog signal processing circuit also, and is not digital signal processing circuit.
In addition, in present embodiment 2, put down in writing for the situation that has configured the air cooled heat exchanger 50 that produces dewfall, but, also can in the situation that configures the heat exchanger 50 that does not produce the dewfall degree, use, has following effect: can not consider whether heat exchanger 50 produces the dewfall generation and prevent that noise/soundproof effect from detecting microphone 211, the hydraulic performance decline of control loudspeaker 181 grades.
Embodiment 3.
For example, also can noise elimination mechanism be set in following such position.In addition, in present embodiment 3, use identical label to narrate for the function identical with embodiment 1～embodiment 2 or structure.
In embodiments of the present invention 3, the noise measuring microphone 161(that has in the structural element of noise elimination mechanism in the downstream of heat exchanger 50 is equivalent to noise detection apparatus), control loudspeaker 181(is equivalent to control voice output) and soundproof effect detect microphone 191(and be equivalent to the soundproof effect checkout gear).Therefore, the disorder that can be reduced in the air-flow that occurs in the fan 20 detects the impact of microphone 191 on soundproof effect, can shorten from the path at the control sound arrival control point that control loudspeaker 181 sends.Therefore, the indoor set 100 of present embodiment 3 can carry out high-precision noise control by noise elimination mechanism.In addition, the indoor set of present embodiment 3 can also be cut down the cost of signal processing circuit.
Below, describe in more detail.
Figure 15 is the profilograph that the indoor set of embodiments of the present invention 3 is shown.This Figure 15 and Fig. 1 are same, with the left side of figure as the front face side of indoor set 100 and illustrate.According to Figure 15, the structure of indoor set 100 is described.
About the structure of indoor set 100, noise elimination mechanism is that the configuration of noise measuring microphone 161, control loudspeaker 181 is different from Fig. 1, and the structure beyond this is identical with the indoor set 100 of embodiment 1.
Indoor set 100 has the noise elimination mechanism that is made of noise measuring microphone 161, control loudspeaker 181, soundproof effect detection microphone 191 and signal processing apparatus 201.Noise measuring microphone 161 is installed in the downstream of heat exchanger 50.Soundproof effect detects near the blow-off outlet 3 (for example forming nozzle 6 parts of blow-off outlet 3) that microphone 191 is installed in the downstream of heat exchanger 50.In addition, control loudspeaker 181 is arranged near the side (more particularly, at the downside of heat exchanger 50, and soundproof effect detects microphone 191) of housing 1.In addition, configure control loudspeaker 181 and soundproof effect detection microphone 191 with the wall from housing 1 towards the mode of wind path central authorities.
In addition, the setting position of soundproof effect detection microphone 191 is not limited to nozzle 6 parts of blow-off outlet 3, so long as the peristome of blow-off outlet 3 gets final product.For example, also soundproof effect can be detected bottom or the sidepiece that microphone 191 is installed in blow-off outlet 3.In addition, in present embodiment 3, control loudspeaker 181 is installed in the side of housing 1, still, also control loudspeaker 181 can be installed in front or the back side of housing 1.In addition, noise measuring microphone 161 not necessarily must be arranged on the downstream of heat exchanger 50, also control loudspeaker 181 and soundproof effect can be detected the downstream that microphone 191 is arranged on heat exchanger 50.
In addition, the output signal of noise measuring microphone 161 and soundproof effect detection microphone 191 is imported into for the signal processing apparatus 201 that generates the signal (control sound) that control loudspeaker 181 is controlled.Indoor set 100 in the structure of signal processing apparatus 201 and the embodiment 1 is identical.
At this, the noise elimination mechanism of present embodiment 3 need to be higher with the coherence of the sound that is detected by soundproof effect detection microphone 191 by the sound that noise measuring microphone 161 detects in order to obtain higher soundproof effect.Yet, if the zone of the air turbulence that causes in the rotation that occurs because of the impeller 25 of fan 20 (for example, noise measuring microphone 161 and soundproof effect are set the wind path between indoor set 100 fans 20 and heat exchanger 50) detect microphone 191, the composition that then can detect beyond the noise originally is the pressure oscillation composition that air turbulence causes, and the coherence between two microphones reduces.
Therefore, in the indoor set 100 of present embodiment 3, noise measuring microphone 161 and soundproof effect are detected the downstream that microphone 191 is arranged on heat exchanger 50.Indoor set 100 arranges fan 20 at the upstream side of heat exchanger 50, therefore can between noise measuring microphone 161 and soundproof effect detection microphone 191 and fan 20 heat exchanger 50 be set.When noise measuring microphone 161 and soundproof effect detection microphone 191 is set like this, the air turbulence that occurs in fan 20 is suppressed because of 56 of fins by heat exchanger 50, therefore can detect the impact that reduces air turbulence in the microphone 191 at noise measuring microphone 161 and soundproof effect.Therefore, the coherence that noise measuring microphone 161 and soundproof effect detect between the microphone 191 rises, and can access higher soundproof effect.
Figure 16 illustrates the performance plot that detects the coherence between two microphones of setting position of microphone based on noise measuring microphone and soundproof effect.At this, Figure 16 (a) illustrates the performance plot that noise measuring microphone 161 and soundproof effect is detected the coherence between two microphones of upstream side (more particularly, in the situation that between fan 20 and the heat exchanger 50) that microphone 191 is arranged on heat exchanger 50.In addition, Figure 16 (b) illustrates the performance plot that noise measuring microphone 161 and soundproof effect is detected the coherence between two microphones in the situation in downstream that microphone 191 is arranged on heat exchanger 50.Figure 16 (a) and Figure 16 (b) are compared as can be known, be arranged in the such indoor set 100 of upstream side of heat exchanger 50 at fan 20, noise measuring microphone 161 and soundproof effect are detected the downstream that microphone 191 is arranged on heat exchanger 50, and the coherence between two microphones rises thus.
In addition, the setting position from control loudspeaker 181 also affects soundproof effect to the distance that soundproof effect detects the setting position (control point) of microphone 191.That is the length that the control sound of, exporting from control loudspeaker 181 arrives the bang path at control point (soundproof effect detects the setting position of microphone 191) also affects soundproof effect.More particularly, change from the control sound of control loudspeaker 181 output amplitude response and phase characteristic the bang path that arrives control point (soundproof effect detects the setting position of microphone 191).When amplitude response in bang path and phase characteristic change, control sound no longer is during with noise same-amplitude and opposite phase, and soundproof effect reduces.
In order to suppress the reduction of such soundproof effect that is caused by bang path, in common Filtered-X algorithm, obtain in advance the bang path of control sound, and in the process that generates control sound, proofread and correct, eliminate thus the problems referred to above point.Yet when bang path was elongated, the filter tap number of the bang path of obtaining was elongated, and calculation process increases.In addition, make in the variation because of temperature etc. in the situation of sonic velocity change etc., when bang path was longer, the bang path of obtaining became large with the error of actual bang path, and soundproof effect reduces.
Therefore, for the decline of the soundproof effect that suppresses to be caused by bang path, preferably control loudspeaker 181 and soundproof effect are detected microphone 191 and closely arrange.Detect microphone 191 by control loudspeaker 181 and soundproof effect are set like this, can shorten the transmission distance of control sound, the variation of amplitude response and phase characteristic can be suppressed for less.That is, by control loudspeaker 181 and soundproof effect are detected microphone 191 approaching settings, the stack of high-precision sound wave can be realized, therefore higher soundproof effect can be accessed.Therefore, in the indoor set 100 of present embodiment 3, the setting position that detects microphone 191 at soundproof effect is that the downstream of heat exchanger 50 arranges control loudspeaker 181.Therefore, the bang path that arrives control point (soundproof effect detects the setting position of microphone 191) from the control sound of control loudspeaker 181 outputs can be shortened, higher soundproof effect can be accessed.
In addition, indoor set 100 can arrange at the upstream side of heat exchanger 50 fan 20, therefore the fan 20 as noise source can be arranged on the top in the housing 1.Therefore, can extend to bang path from the noise of fan 20 noise till blow-off outlet 3 outputs.Therefore, by control loudspeaker 181 being arranged on the downstream of heat exchanger 50, can obtain the distance of noise measuring microphone 161 and control loudspeaker 181 longer.That is, can obtain long generation for the operation time of the control sound of the sound that is detected by noise measuring microphone 161, thereby will arithmetic speed not be made as at a high speed.Therefore, the indoor set 100 of present embodiment 1 can reduce A/D converter 152 or carry out the specification of the digital signal processor of signal processing, thereby can cutting down cost.
In addition, in the situation in the downstream that noise measuring microphone 161, control loudspeaker 181 and soundproof effect detection microphone 191 is arranged on heat exchanger 50, may produce dewfall owing to directly contacting with cold air, therefore can use the parts of having implemented waterproof processing.
Above, at least control loudspeaker 181 and soundproof effect that the indoor set 100 of present embodiment 3 has in the downstream of heat exchanger 50 in the structural element of noise elimination mechanism detect microphone 191.Therefore, indoor set 100 can be reduced in the disorder of the air-flow that occurs in the fan 20 to the impact of soundproof effect detection microphone 191, can shorten from the path at the control sound arrival control point (soundproof effect detects the setting position of microphone 191) that control loudspeaker 181 sends.Therefore, indoor set 100 can carry out high-precision noise control by noise elimination mechanism.
In addition, in the indoor set 100 of present embodiment 3, noise measuring microphone 161 also is arranged on the downstream of heat exchanger 50.Therefore, the disorder that can be reduced in the air-flow that occurs in the fan 20 detects the impact of microphone 191 on noise measuring microphone 161 and soundproof effect, can improve two coherences between microphone, therefore can access higher soundproof effect.
In addition, in the indoor set 100 of present embodiment 3, fan 20 is set above can be in the upstream side of heat exchanger 50 and housing 1.Therefore, can be longer with what get from the bang path of the noise of fan 20, that noise measuring microphone 161 and the distance of control loudspeaker 181 can be got is longer.Therefore, speed that will calculation process is made as at a high speed, therefore can cut down the cost of indoor set 100.
Embodiment 4.
Use following such noise elimination mechanism also can access the soundproof effect same with embodiment 3.In addition, in present embodiment 4, do not have the special project of recording and narrating identical with embodiment 1～embodiment 3, use identical label to narrate to identical function or structure.
Figure 17 is the profilograph that the indoor set of embodiments of the present invention 4 is shown.
The indoor set 100 of present embodiment 4 is with the difference of the indoor set 100 of embodiment 3, is used for the microphone difference of active noise elimination.More particularly, the indoor set 100 of embodiment 3 uses two microphones (noise measuring microphone 161 and soundproof effect detect microphone 191), is controlled the generation of sound by signal processing apparatus 201.On the other hand, in the indoor set 100 of present embodiment 4, these noise measuring microphones 161 and soundproof effect are detected microphone 191, and to be replaced into a microphone be that noise/soundproof effect detects microphone 211.In addition, because it is different to be used for the method that the microphone difference of dynamically eliminating the noise thereby signal process, so the indoor set 100 of present embodiment 4 uses the signal processing apparatus 204 different from the signal processing apparatus 201 of the indoor set 100 of embodiment 3.
That is, the indoor set 100 of present embodiment 4 has the noise elimination mechanism that is made of control loudspeaker 181, noise/soundproof effect detection microphone 211 and signal processing apparatus 204.
More particularly, noise/soundproof effect detects near the blow-off outlet 3 (for example forming nozzle 6 parts of blow-off outlet 3) that microphone 211 is installed in the downstream that is positioned at heat exchanger 50.This noise/soundproof effect detects microphone 211 and detects the control sound and the sound of the air-supply sound that comprises fan 20 after the operating sound (noise) of interior indoor set 100 is interfered that makes from control loudspeaker 181 outputs.In addition, output needle is arranged near the side (more particularly, at the downside of heat exchanger 50, and noise/soundproof effect detects microphone 211) of housing 1 to the control loudspeaker 181 of the control sound of noise.In addition, control loudspeaker 181 and noise/soundproof effect detects microphone 211 to be configured in the downside of heat exchanger 50 towards the mode of wind path central authorities from the wall of housing 1.
In addition, the setting position of noise/soundproof effect detection microphone 211 is not limited to nozzle 6 parts of blow-off outlet 3, so long as the peristome of blow-off outlet 3 gets final product.For example, also noise/soundproof effect can be detected bottom or the sidepiece that microphone 211 is installed in blow-off outlet 3.In addition, in present embodiment 4, control loudspeaker 181 is installed in the side of housing 1, still, also control loudspeaker 181 can be installed in front or the back side of housing 1.
In addition, the output signal of noise/soundproof effect detection microphone 211 is imported into for the signal processing apparatus 204 that generates the signal (control sound) that control loudspeaker 181 is controlled.In addition, the indoor set 100 in the structure of signal processing apparatus 204 and the embodiment 2 is identical.
At this, the noise elimination mechanism of present embodiment 4 need to make in by the sound that noise/soundproof effect detection microphone 211 detects not comprise the pressure oscillation composition that air turbulence causes in order to obtain higher soundproof effect.
Therefore, in the indoor set 100 of present embodiment 4, noise/soundproof effect is detected the downstream that microphone 211 is arranged on heat exchanger 50.Indoor set 100 arranges fan 20 at the upstream side of heat exchanger 50, therefore can detect between microphone 211 and the fan 20 at noise/soundproof effect heat exchanger 50 is set.When noise/soundproof effect being set like this detecting microphone 211, the air turbulence that occurs in fan 20 is suppressed because of 56 of fins that pass through heat exchanger 50.Therefore, noise/soundproof effect detects the impact that microphone 211 has reduced air turbulence, can access higher soundproof effect.
In addition, the setting position from control loudspeaker 181 also affects soundproof effect to the distance that noise/soundproof effect detects the setting position (control point) of microphone 211.That is the length that the control sound of, exporting from control loudspeaker 181 arrives the bang path at control point (noise/soundproof effect detects the setting position of microphone 211) also affects soundproof effect.More particularly, change from the control sound of control loudspeaker 181 output amplitude response and phase characteristic the bang path that arrives control point (noise/soundproof effect detects the setting position of microphone 211).When amplitude response in bang path and phase characteristic change, control sound no longer is during with noise same-amplitude and opposite phase, and soundproof effect reduces.
In order to suppress the reduction of such soundproof effect that is caused by bang path, in common Filtered-X algorithm, obtain in advance the bang path of control sound, and in the process that generates control sound, proofread and correct, eliminate thus the problems referred to above point.Yet when bang path was elongated, the filter tap number of the bang path of obtaining was elongated, and calculation process increases.In addition, make in the variation because of temperature etc. in the situation of sonic velocity change etc., when bang path was longer, the bang path of obtaining became large with the error of actual bang path, and soundproof effect reduces.
Therefore, for the decline of the soundproof effect that suppresses to be caused by bang path, preferably control loudspeaker 181 and noise/soundproof effect are detected microphone 211 and approach and arrange.Detect microphone 211 by control loudspeaker 181 and noise/soundproof effect is set like this, can shorten the transmission distance of control sound, the variation of amplitude response and phase characteristic can be suppressed for less.That is, by control loudspeaker 181 and noise/soundproof effect are detected microphone 211 approaching settings, high-precision sound wave stack can be realized, therefore higher soundproof effect can be accessed.
Therefore, in the indoor set 100 of present embodiment 4, the setting position that detects microphone 211 at noise/soundproof effect is that the downstream of heat exchanger 50 arranges control loudspeaker 181.Therefore, the bang path that arrives control point (noise/soundproof effect detects the setting position of microphone 211) from the control sound of control loudspeaker 181 outputs can be shortened, higher soundproof effect can be accessed.
In addition, be arranged in the situation in downstream of heat exchanger 50 control loudspeaker 181 and noise/soundproof effect being detected microphone 211, may be owing to directly contacting with cold air and produce dewfall, so can use the parts of having implemented waterproof processing.
Above, the indoor set 100 of present embodiment 4 is arranged on heat exchanger 50 in the downstream of fan 20.And at least control loudspeaker 181 and noise/soundproof effect that indoor set 100 has in the downstream of heat exchanger 50 in the structural element of noise elimination mechanism detect microphone 211.Therefore, indoor set 100 can be reduced in the disorder of the air-flow that occurs in the fan 20 to the impact of noise/soundproof effect detection microphone 211, can shorten from the path at the control sound arrival control point (noise/soundproof effect detects the setting position of microphone 211) that control loudspeaker 181 sends.Therefore, indoor set 100 can carry out high-precision noise control by noise elimination mechanism.
Embodiment 5.
(the noise measuring microphone being set at wheel hub)
In addition, for example also can noise elimination mechanism be set in following such position.In addition, in present embodiment 5, use identical label to narrate for the function identical with embodiment 1～embodiment 4 or structure.
Figure 18 is the profilograph that the indoor set of embodiments of the present invention 5 is shown.This Figure 18 illustrates the right side of the figure front face side as indoor set 100.
The indoor set 100 of present embodiment 5 is fixed in heat exchanger 50 in the housing 1 by heat exchanger fixed part 58.Shown in the hollow arrow among Figure 18, when fan 20 work, air the wind path from suction inlet 2 to indoor set in 100 in the suction chamber, this air amount is cooled or heats at the heat exchanger 50 that is arranged in fan 20 bottoms, then blows out to indoor from blow-off outlet 3.
Figure 19 is the upward view (figure that observes from the downside of Figure 18) of the fan of embodiments of the present invention 5.In addition, Figure 20 is the cutaway view that fan shown in Figure 19 20 is obtained along cross section M incision.
In present embodiment 5, use the fan after the modularizations such as fan 20, fan motor, horn mouth and support of motor 16.This is because if form the structure that can load and unload in housing 1, then can improve maintainability, and the precision in gap between the leaf of raising fan 20.Fan 20 has the impeller 25 that is called as movable wing.Fan motor as the power source of this impeller 25 is arranged in the fixed part 17 of support of motor 16.In addition, fixed part 17 by support component 18 be connected by basket of the fan after the modularization etc.Latticed dash area among Figure 19 illustrates the part (that is, the inscribed circle tangent with the interior perimembranous of the blade of impeller 25) in the interior week of the blade that is equivalent to fan 20.In addition, support component 18 also can be used as wing or tabular and static wing effect is provided.
Fan motor as the power source of impeller 25 is connected by rotating shaft 20a with the wheel hub 21 of impeller 25.Thus, the rotation of fan motor is delivered to impeller 25 via rotating shaft 20a, and impeller 25 is rotated.By impeller 25 rotations, air is to the direction shown in the hollow arrow of Figure 20 mobile (air-supply).The part of rotation when in addition, utilizing the part shown in the oblique line to be illustrated in fan 20 work among Figure 20.In addition, even there is not the part of oblique line to represent when fan 20 work yet non-rotary part (not dynamic component).In addition, the part in the interior week of the blade of fan 20 (that is, the inscribed circle tangent with the interior perimembranous of the blade of impeller 25) becomes the peripheral part of wheel hub 21.In addition, in present embodiment 5, the diameter of fixed part 17 forms with the diameter of wheel hub 21 roughly the same.
Again be conceived to Figure 18, at the fixed part 17 in interior week of the blade that is equivalent to fan 20 noise measuring microphone 161 as noise detection apparatus be installed, its detection comprises the air-supply sound of fan 20 in the operating sound (noise) of interior indoor set 100.That is, noise measuring microphone 161 is configured in cylindrical region (hereinafter referred to as cylindrical region S), and this cylindrical region is to make with the tangent inscribed circle of the interior perimembranous of the blade of impeller 25 to extend and form in the rotating shaft direction of impeller 25.In addition, as shown in figure 20, this fixed part 17 constitutes when fan 20 work and does not rotate, and is independently with respect to the impeller 25 that rotates.Therefore, noise measuring microphone 161 does not rotate when fan 20 work yet.In addition, as the control loudspeaker 181 of output needle to the control voice output of the control sound of noise, to be configured in the downside of noise measuring microphone 161 towards the mode of wind path central authorities from the wall of housing 1.
In addition, on the wall of the lower end of indoor set 100, detect microphone 191 as the soundproof effect that detects the noise that spreads out of from blow-off outlet 3 and the soundproof effect checkout gear that detects soundproof effect, be installed in for example top of blow-off outlet 3.This soundproof effect detects microphone 191 and is installed into towards the direction opposite with stream.In addition, the setting position of soundproof effect detection microphone 191 is not limited to the top of blow-off outlet 3, so long as the peristome of blow-off outlet 3 gets final product.For example also soundproof effect can be detected bottom or the sidepiece that microphone 191 is installed in blow-off outlet 3.In addition, soundproof effect detects microphone 191 does not need to be set to towards opposite with stream exactly.As long as towards indoor set 100(housing) the arranged outside soundproof effect detect microphone 191.That is, as long as being arranged on, soundproof effect detection microphone 191 can detect the position that is output to indoor noise.
And it is signal processing apparatus 207 that the output signal of noise measuring microphone 161 and soundproof effect detection microphone 191 is imported into for the control sound generating apparatus that generates the signal (control sound) that control loudspeaker 181 is controlled.Microphone 191 detects by these noise measuring microphones 161, control loudspeaker 181, soundproof effect in the noise elimination mechanism of indoor set 100 and signal processing apparatus 207 consists of.
Then the action of indoor set 100 described.When indoor set 100 work, the impeller 25 of fan 20 is rotated, the air in the upside suction chamber of fan 20, and carry air to fan 20 downsides, produce thus air-flow.Follow in this, produce operating sound (noise) near the blow-off outlet of fan 20, this sound downstream side is propagated.
Near the blow-off outlet 3 of fan 20, owing to the rotation of impeller 25 produces air turbulence.In addition, the air that blows out from fan 20 blows out toward the outer side from the blow-off outlet of fan 20, thereby bumps against the sidewall of the housing 1 of indoor set 100, further causes air turbulence.Therefore, the pressure oscillation that causes in the side-walls air turbulence of housing 1 increases.In contrast to this, interior week of the ratio blade of fan 20 in the zone (cylindrical region S) in the inner part air turbulence less, the pressure oscillation that air-flow causes is also less.
In order to prove this phenomenon, Figure 22 shows the air-flow that blows out from fan 20 is visual and experimental result that obtain.Figure 22 is at the right-hand member provided with fan 20 of the cylinder of pipe shape, and white cigarette is trapped in the pipeline, the photo when then making fan 20 work.Find near observing the blow-off outlet of fan 20, near fixed part 17 and the zone the cylindrical region S, the white cigarette that is detained weakens, and white cigarette flows along with air-flow.On the other hand, near the state that keeps white cigarette to be detained with cylindrical region S the fixed part 17 of fan 20, the impact of air-flow is less.That is, be not vulnerable to as can be known the impact of air-flow near the fixed part 17 of fan 20 with cylindrical region S, the pressure oscillation that air turbulence causes is less.
The air of being carried by fan 20 passes through in wind path, and heat exchanger 50 is carried.For example, when carrying out cooling operation, from refrigerant piping heat exchanger 50 refrigerant conveyings that are connected with off-premises station (not shown).The air that heat exchanger 50 is carried is become cold air by the refrigerant cools that flows in heat exchanger 50, directly emit to indoor from blow-off outlet 3.
Then, the inhibition method of the operating sound of indoor set 100 described.
Figure 21 is the structure chart that the signal processing apparatus of embodiments of the present invention 5 is shown.
The operating sound (noise) of the air-supply sound that comprises fan 20 in the indoor set 100 is detected by the noise measuring microphone 161 of installing at the fixed part 17 of fan 20.The noise that is detected by noise measuring microphone 161 becomes data signal via microphone amplifier 151, A/D converter 152, and input FIR wave filter 158 and LMS algorithm device 159.
The tap coefficient of FIR wave filter 158 is upgraded one by one by LMS algorithm device 159.In LMS algorithm device 159, same with the formula 1 of embodiment 1, according to (h(n+1)=h(n)+2 μ e(n) x(n)) upgrade best tap coefficient, so that error signal e is close to zero.
Like this, in D/A converter 154, be converted into analog signal having been upgraded the data signal of passing through in the FIR wave filter 158 of tap coefficient by LMS algorithm device 159, and be exaggerated device 155 amplifications, and as the wind path of control sound in control loudspeaker 181 outputs to indoor set 100.
On the other hand, be installed in indoor set 100 blow-off outlet 3 top and towards with the rightabout soundproof effect of stream detect microphone 191 detect make from the control sound of control loudspeaker 181 outputs with propagate by wind path from fan 20 and output to sound after indoor noise is interfered from blow-off outlet 3.The signal that is detected by soundproof effect detection microphone 191 is converted into data signal, and is averaged by weighted units 153.
Figure 23 is the structure chart of circuit that the weighted units of embodiments of the present invention 5 is shown.Weighted units 153 is made of integrator, and this integrator is made of the multiplier 121 that input signal be multiply by weight coefficient, adder 122, the delay element 123 and the multiplier 124 that postpone 1 sampling.
In present embodiment 5, the weight coefficient of multiplier 121 can be set from the outside according to environment etc. is set.
For example, under disturbing greatly, moving unsettled environment, can set less weight coefficient to multiplier 121.On the contrary, under disturbing than the circlet border, can set larger weight coefficient to multiplier 121.Thus, can change susceptibility to environmental change.At this, also can be before LMS algorithm device 159 is stablized, not to be weighted the equalization that unit 153 is carried out.This be because, during LMS algorithm device 159 is unstabilized, can not fully reduce noise, have the output valve situation out of control of weighted units 153.In addition, also can be set as to surpass in the situation of certain numerical value in the output valve of weighted units 153 and reset.
The signal that averages out is like this processed as the error signal e of above-mentioned LMS algorithm device 159.And, carry out FEEDBACK CONTROL and make this error signal e approach zero, and suitably upgrade the tap coefficient of FIR wave filter 158.Consequently, can be according near the noise the control sound inhibition blow-off outlet 3 that has passed through FIR wave filter 158.
The noise from indoor set 100 that the people feels is to output to noise after indoor from blow-off outlet 3, thereby namely indoor towards the opposition side of stream by making soundproof effect detect microphone 191, can detect and be output to indoor noise.That is, by on the top of blow-off outlet 3 and towards the direction opposite with stream soundproof effect detection microphone 191 being installed, can detect the sound higher with the coherence who is output to indoor noise.In addition, soundproof effect detects microphone 191 and does not directly conflict mutually with air-flow, thereby can not detect the broken empty sound that air-flow causes.On the other hand, if make soundproof effect detect microphone 191 in stream, then can detect the noise in the stream.Therefore, can't detect in the characteristic variations from the sound of blow-off outlet output, thereby the characteristic that soundproof effect detects the sound that microphone 191 detects is different from indoor noise.Therefore, causing detecting microphone 191 sound that detects and the coherence who outputs to indoor sound by soundproof effect reduces.In addition, detect microphone 191 because air-flow directly impacts soundproof effect, thereby cause soundproof effect detection microphone 191 to detect brokenly empty sound, further cause the coherence to reduce.
In addition, comprise the noise sound in addition that much produces from fan 20 indoor, thereby cause the stability of FEEDBACK CONTROL to be damaged by the sound beyond these noises.Therefore, in the prime configuration weighted units 153 of FEEDBACK CONTROL, thus with the sound equalization beyond the noise.Thus, can eliminate the composition of incoherent noise sound in addition, can make FEEDBACK CONTROL play consistently effect.That is, can improve the coherence that noise measuring microphone 161 and soundproof effect detect microphone 191.
And, in present embodiment 5, noise measuring microphone 161 is installed on the fixed part 17 of fan 20, thereby air-flow does not conflict directly with noise measuring microphone 161.Therefore, can detect the pressure oscillation composition that air turbulence causes by noise reduction detection microphone 161.Therefore, noise measuring microphone 161 can detect the higher sound of coherence that the operating sound with fan 20 is noise.In addition, because on the top of blow-off outlet 3 and towards the direction opposite with stream soundproof effect is installed and is detected microphone 191, thereby air-flow do not detect microphone 191 with soundproof effect and directly conflict, and soundproof effect detection microphone 191 is not subjected to the impact of air-flow.In addition, soundproof effect detects microphone 191 and can only detect and be output to indoor noise, thereby can utilize soundproof effect to detect microphone 191 to detect the noise higher with the coherence who is physically located in the noise that indoor people hears.In addition, utilize 153 pairs of sound that detected by soundproof effect detection microphone 191 of weighted units to average, and carry out FEEDBACK CONTROL, thereby can with detected by soundproof effect comprise in the sound that microphone 191 detects except eliminating from the composition equalization the noise of indoor set 100.Therefore, the detection sound for noise measuring microphone 161 and soundproof effect detection microphone 191 can access higher coherence.Based on these situations, detect the detection sound of microphone 191 and between the indoor noise of indoor set 100 output noises at detection sound, the soundproof effect of the noise that produces from fan 20, noise measuring microphone 161, higher coherence can be accessed, higher soundproof effect can be accessed.
To noise measuring microphone 161 actual installation week (cylindrical region S) in the blade of comparing fan 20 coherence's determination experiment result when the inboard, that noise measuring microphone 161-soundproof effect detects between the microphone 191 is described.
The coherence of detection sound when Figure 24 is illustrated in the outside that noise measuring microphone 161 is arranged on cylindrical region S and makes fan 20 work, noise measuring microphone 161 and the detection sound of soundproof effect detection microphone 191.The coherence of detection sound when in addition, Figure 25 is illustrated in noise measuring microphone 161 is arranged on the inboard of cylindrical region S and makes fan 20 work, noise measuring microphone 161 and the detection sound of soundproof effect detection microphone 191.Figure 24 and Figure 25 are compared as can be known, and the coherence when noise measuring microphone 161 is arranged on cylindrical region S inboard is obviously higher.
In addition, by noise measuring microphone 161 being installed on the fixed part 17 of fan 20, noise measuring microphone 161 can easily be installed, and can not increase new part number, not need accurate installing mechanism.And, by noise measuring microphone 161 being installed on the fixed part 17 of fan 20, shorter the getting final product of distance of fan 20 and noise measuring microphone 161, thereby can shorten the height of indoor set 100.
In addition, in present embodiment 5, noise measuring microphone 161 is arranged on fixed part 17, but also exists the intrinsic mechanical oscillation of following the rotation of fan 20 and producing to pass to fixed part 17, cause noise measuring microphone 161 to detect the situation of this vibration.In this situation, cause sometimes noise measuring microphone 161 and soundproof effect to detect the coherence of microphone 191 in local deteriorated.In this case, also noise measuring microphone 161 can be arranged on position beyond the fixed part 17 in the cylindrical region S.For example also can be according to shown in Figure 26, noise measuring microphone 161 is arranged on the heat exchanger 50 in the scope that is in the cylindrical region S.In addition, for example also can be according to shown in Figure 27, noise measuring microphone 161 is arranged on heat exchanger fixed part 58 in the scope that is in the cylindrical region S below.By noise measuring microphone 161 is set like this, compare with the situation that noise measuring microphone 161 is arranged on fixed part 17, the coherence of noise measuring microphone 161 and soundproof effect detection microphone 191 can be further improved, higher soundproof effect can be accessed.
In addition, also can as shown in figure 28, utilize wall components 270 to cover noise measuring microphone 161.Owing to can intercept air-flow by wall components, thereby noise measuring microphone 161 more is not vulnerable to the impact of air-flow, can access higher soundproof effect.Although wall components 270 forms roughly cylindricly in Figure 28, the shape of wall components 270 can be arbitrarily.
In addition, in the situation that noise measuring microphone 161 is installed on heat exchanger 50 or heat exchanger fixed part 58, also can utilize wall components 270 to cover noise measuring microphone 161.Noise measuring microphone 161 more is not vulnerable to the impact of air-flow, can access higher soundproof effect.
In addition, also can utilize wall components to cover to be installed in the top of blow-off outlet 3 and towards detecting microphone 191 with the rightabout soundproof effect of stream.Owing to can block air-flow, thereby soundproof effect detects the impact that microphone 191 is not vulnerable to air-flow yet, can access higher soundproof effect.
In addition, in present embodiment 5, FIR wave filter 158 and LMS algorithm device 159 in signal processing apparatus 207, have been used, but so long as the Sound close that is detected by soundproof effect detection microphone 191 is got final product in zero self-adaptive signal processing circuit, can utilize the filtered-X algorithm that in active sound reduction method, usually adopts.In addition, weighted units 153 needs not be integrator, so long as the means that can average get final product.In addition, signal processing apparatus 207 needs not be the structure of carrying out Adaptive Signal Processing, also can be the structure that generates control sound according to fixing tap coefficient.In addition, signal processing apparatus 207 needs not be digital signal processing circuit, also can be analog signal processing circuit.
In the indoor set 100 of above-described present embodiment 5, be located in the cylindrical region S as the noise measuring microphone 161 of noise detection apparatus, and be located at the not dynamic component of fan 20.Therefore, can reduce the impact from the air-flow of the blow-off outlet of fan 20, can detect the sound higher with the coherence of noise, thereby can carry out high-precision active and eliminate the noise.In addition, need not change the mechanism of fan 20, not increase the part number of indoor set 100, noise measuring microphone 161 can be set, thereby can realize arranging the higher indoor set of the free degree 100.
In addition, the not dynamic component of fan 20 is not limited to fixed part 17.So long as at least a portion is configured in not dynamic component in the cylindrical region S in the structural element of fan 20, can in the scope in the cylindrical region S of being in of dynamic component noise measuring microphone 161 be set at this.
In addition, in the indoor set 100 of present embodiment 5, be located in the cylindrical region S as the noise measuring microphone 161 of noise detection apparatus, and be located at the downstream of fan 20.Therefore, can reduce the impact from the air-flow of the blow-off outlet of fan 20, can detect the sound higher with the coherence of noise, thereby can carry out high-precision active and eliminate the noise.In addition, need not change the mechanism of fan 20, not increase the part number of indoor set 100, noise measuring microphone 161 can be set, thereby can realize arranging the higher indoor set of the free degree 100.And, owing to noise measuring microphone 161 does not detect the intrinsic mechanical oscillation that the rotation along with fan 20 produces, thereby compare with the situation of noise measuring microphone 161 being located at the not dynamic component of fan 20, can carry out precision higher active eliminate the noise.
In addition, in the situation in the downstream of noise measuring microphone 161 being located at fan 20, be not limited to heat exchanger 50 or heat exchanger fixed part 58 for the structural element that noise measuring microphone 161 is set.So long as at least a portion is in cylindrical region S and be configured in the structural element in the downstream of fan 20, can in the scope in the cylindrical region S of being in of this structural element, noise measuring microphone 161 be set.
In addition, in the indoor set 100 of present embodiment 5, will detect the peristome that microphone 191 is located at blow-off outlet 3 as the soundproof effect of soundproof effect checkout gear, and towards the configuration of the outside of indoor set 100.Therefore, can not be subjected to the impact ground detection of air-flow to be output to indoor noise.Therefore, the detection sound for room noise and soundproof effect from indoor set 100 outputs detect microphone 191 can access higher coherence.Therefore, can carry out high-precision active to the room noise from indoor set 100 outputs eliminates the noise.
In addition, in the indoor set 100 of present embodiment 5, signal processing apparatus 207 as control sound generating apparatus has following circuit, and this circuit is weighted the testing result that is detected by the soundproof effect detection microphone 191 as the soundproof effect checkout gear, and carries out FEEDBACK CONTROL.Therefore, can the sound except the noise of indoor set 100 that be detected by soundproof effect detection microphone 191 be averaged and eliminate.Therefore, can detect at noise measuring microphone 161 and soundproof effect and detect the sound that the coherence is higher between the microphone 191, can carry out the higher active of precision and eliminate the noise.
In addition, in the indoor set 100 of present embodiment 5, noise measuring microphone 161 is arranged on the scope that is arranged in cylindrical region S of the fixed part 17 of fan 20.Therefore, can reduce the impact from the air-flow of the blow-off outlet of fan 20, can detect the sound higher with the coherence of noise, thereby can carry out high-precision active and eliminate the noise.In addition, need not change the mechanism of fan 20, not increase the part number of air conditioner, noise measuring microphone 161 can be set, thereby can realize arranging the higher indoor set of the free degree 100.
In addition, in the indoor set 100 of present embodiment 5, noise measuring microphone 161 is arranged on the scope that heat exchanger 50 is arranged in cylindrical region S.Therefore, can reduce the impact from the air-flow of the blow-off outlet of fan 20, can detect the sound higher with the coherence of noise, thereby can carry out high-precision active and eliminate the noise.In addition, need not change the mechanism of fan 20, not increase the part number of air conditioner, noise measuring microphone 161 can be set, thereby can realize arranging the higher indoor set of the free degree 100.And, owing to noise measuring microphone 161 does not detect the intrinsic mechanical oscillation that the rotation along with fan 20 produces, thereby compare with the situation of noise measuring microphone 161 being located at the not dynamic component of fan 20, can carry out the higher active of precision and eliminate the noise.
In addition, in the indoor set 100 of present embodiment 5, noise measuring microphone 161 is arranged on the scope that is arranged in cylindrical region S of heat exchanger fixed part 58.Therefore, can reduce the impact from the air-flow of the blow-off outlet of fan 20, can detect the sound higher with the coherence of noise, thereby can carry out high-precision active and eliminate the noise.In addition, need not change the mechanism of fan 20, not increase the part number of air conditioner, noise measuring microphone 161 can be set, thereby can realize arranging the higher indoor set of the free degree 100.And, owing to noise measuring microphone 161 does not detect the intrinsic mechanical oscillation that the rotation along with fan 20 produces, thereby compare with the situation of noise measuring microphone 161 being located at the not dynamic component of fan 20, can carry out the higher active of precision and eliminate the noise.
In addition, in the indoor set 100 of present embodiment 5, utilize wall components 270 to cover noise measuring microphone 161.By intercepting air-flow, noise measuring microphone 161 more is not vulnerable to the impact of air-flow, thereby can access higher soundproof effect.
In addition, in the indoor set 100 of present embodiment 5, utilize wall components to cover soundproof effect and detect microphone 191.By intercepting air-flow, soundproof effect detects microphone 191 and more is not vulnerable to the impact of air-flow, thereby can access higher soundproof effect.
Embodiment 6.
In present embodiment 6, be described as follows such indoor set 100, this indoor set 100 has configured noise/soundproof effect and has detected microphone 211, as integrated noise measuring microphone 161 and the soundproof effect noise that detects microphone 191/soundproof effect checkout gear in the present embodiment 5.In addition, in present embodiment 6, do not have the special project of recording and narrating identical with embodiment 5, use identical label to narrate to identical function or structure.
Figure 29 is the profilograph that the indoor set of embodiments of the present invention 6 is shown.This Figure 29 illustrates the right side of the figure front face side as indoor set 100.
The indoor set 100 of present embodiment 6 is fixed in heat exchanger 50 in the housing 1 by heat exchanger fixed part 58.Shown in the hollow arrow among Figure 29, when fan 20 work, the air in the wind path suction chamber from suction inlet 2 to indoor set in 100, this air amount is positioned at heat exchanger 50 coolings or the heating of the bottom of fan 20, then blows out to indoor from blow-off outlet 3.
The indoor set 100 of present embodiment 6 has following difference with the indoor set 100 of embodiment 5.That is, the indoor set 100 of embodiment 5 uses noise measuring microphone 161 and soundproof effect detection microphone 191 these two microphones that are used for carrying out active noise elimination, and is controlled the generation of sound by signal processing apparatus 207.And in the indoor set 100 of present embodiment 6, it is that noise/soundproof effect detects microphone 211 that these two microphones are replaced as a microphone.In addition, correspondingly the method for signal processing is different therewith, so the content of signal processing apparatus 204 is different.Output needle to the control loudspeaker 181 of the control sound of noise to be configured in the side wall portion of the housing 1 of indoor set 100 towards the mode of wind path central authorities from wall.In addition, the scope that is arranged in cylindrical region S at fixed part 17 configures noise/soundproof effect detection microphone 211, and its detection makes the control sound and the sound of the air-supply sound that comprises fan 20 after the operating sound (noise) of interior indoor set 100 is interfered from control loudspeaker 181 outputs.
In addition, this fixed part 17 constitutes when the work of fan 20 and does not rotate, and is independently with respect to the impeller 25 that rotates.Therefore, noise/soundproof effect detection microphone 211 does not rotate when the work of fan 20 yet.It is signal processing apparatus 204 that the noise/output signal of soundproof effect detection microphone 211 is imported into for the control sound generating apparatus that generates the signal (control sound) that control loudspeaker 181 is controlled.The noise elimination mechanism of indoor set 100 detects microphone 211, control loudspeaker 181 and signal processing apparatus 204 by these noises/soundproof effect and consists of.The structure of signal processing apparatus 204 is identical with Figure 11 of explanation in embodiment 2.
Then, the action of indoor set 100 described.When indoor set 100 work, the impeller 25 of fan 20 is rotated, the air in the upside suction chamber of fan 20, and carry air to fan 20 downsides, produce thus air-flow.Follow in this, produce operating sound (noise) near the blow-off outlet of fan 20, this sound downstream side is propagated.Near the blow-off outlet of fan 20, same with embodiment 5, owing to the rotation of impeller 25 produces air turbulence.In addition, the air that blows out from fan 20 blows out toward the outer side from the blow-off outlet of fan 20, thereby bumps against the sidewall of the basket of indoor set 100, further causes air turbulence.Therefore, the pressure oscillation that causes in the side-walls air turbulence of indoor set 100 increases.In contrast to this, less than air turbulence in the interior week zone (cylindrical region S) in the inner part at the blade of fan 20, the pressure oscillation that air-flow causes is also less.
The air of being carried by fan 20 passes through in wind path, and heat exchanger 50 is carried.For example, when carrying out cooling operation, from refrigerant piping heat exchanger 50 refrigerant conveyings that are connected with off-premises station (not shown).The air that heat exchanger 50 is carried is become cold air by the refrigerant cools that flows in heat exchanger 50, directly emit to indoor from blow-off outlet 3.
The inhibition method of the operating sound of indoor set 100 is identical with the method for explanation in embodiment 2, so that export control sound by the noise that noise/soundproof effect detection microphone 211 detects close to zero mode, consequently, suppress the action that noise/soundproof effect detects the noise in the microphone 211.
Like this, in present embodiment 6, in the indoor set 100 of having used active sound reduction method, noise/soundproof effect is detected the scope that is arranged in cylindrical region S that microphone 211 is located at fixed part 17, thereby directly do not conflict mutually with Air Flow, can reduce the situation that detects the pressure oscillation composition that air turbulence causes.Therefore, the operating sound that can detect with fan 20 is the higher sound of coherence of noise, can access higher soundproof effect.
In addition, by noise/soundproof effect is detected the fixed part 17 that microphone 211 is installed on fan 20, noise/soundproof effect can easily be installed detect microphone 211, and can not increase new part number, not need accurate installing mechanism.And by noise/soundproof effect is detected the fixed part 17 that microphone 211 is arranged at fan 20, fan 20 detects shorter the getting final product of distance of microphone 211 with noise/soundproof effect, thereby can shorten the height of indoor set 100.
In addition, in present embodiment 6, noise/soundproof effect is detected microphone 211 be arranged on fixed part 17, detect microphone 211 but also exist the intrinsic mechanical oscillation of following the rotation of fan 20 and producing to pass to noise/soundproof effect, cause noise/soundproof effect to detect the situation that microphone 211 detects this vibration.Therefore, cause sometimes soundproof effect to reduce.In this case, also noise/soundproof effect can be detected microphone 211 and be arranged on position beyond the fixed part 17 in the cylindrical region S.For example also can according to shown in Figure 30, noise/soundproof effect be detected microphone 211 be arranged on the heat exchanger 50 of the scope that is arranged in cylindrical region S.In addition, for example also can be according to shown in Figure 31, with noise/soundproof effect detect microphone 211 be arranged on the scope that is arranged in cylindrical region S heat exchanger fixed part 58 below.Detect microphone 211 by noise/soundproof effect is set like this, compare with the situation that noise/soundproof effect detection microphone 211 is arranged on fixed part 17, can access higher soundproof effect.
In addition, also can shown in figure 32, utilize wall components 270 to cover noise/soundproof effect and detect microphone 211.Because can intercept air-flow by wall components 270, noise/soundproof effect detects the impact that microphone 211 more is not vulnerable to air-flow, can access higher soundproof effect.Although wall components 270 forms roughly cylindricly in Figure 32, the shape of wall components 270 can be arbitrarily.In addition, be installed on heat exchanger 50 or heat exchanger fixed part 58 in the situation that noise/soundproof effect is detected microphone 211, also can utilize wall components 270 to cover noise/soundproof effect and detect microphone 211.Thereby noise/soundproof effect detection microphone 211 is not vulnerable to the impact of air-flow yet, can accesses higher soundproof effect.
Above, in the indoor set 100 of present embodiment 6, detect microphone 211 as the noise of noise/soundproof effect checkout gear/soundproof effect and be located in the cylindrical region S, and be located at the not dynamic component of fan 20.Therefore, can reduce the impact from the air-flow of the blow-off outlet of fan 20, can detect the sound higher with the coherence of noise, thereby can carry out high-precision active and eliminate the noise.In addition, the part number that does not increase indoor set 100 can arrange noise/soundproof effect and detect microphone 211, thereby can realize arranging the higher indoor set of the free degree 100.
In addition, in present embodiment 6, FIR wave filter 158 and LMS algorithm device 159 in signal processing apparatus 204, have been used, but so long as the Sound close by noise/soundproof effect detection microphone 211 detects is got final product in zero self-adaptive signal processing circuit, can utilize the filtered-X algorithm that in active sound reduction method, usually adopts.In addition, signal processing apparatus 204 needs not be the structure of carrying out Adaptive Signal Processing, also can be the structure that generates control sound according to fixing tap coefficient.In addition, signal processing apparatus 204 needs not be digital signal processing circuit, also can be analog signal processing circuit.
In addition, in the indoor set 100 of present embodiment 6, detect microphone 211 as the noise of noise/soundproof effect checkout gear/soundproof effect and be located in the cylindrical region S, and be located at the downstream of fan 20.Therefore, can reduce the impact from the air-flow of the blow-off outlet of fan 20, can detect the sound higher with the coherence of noise, thereby can carry out high-precision active and eliminate the noise.In addition, need not change the mechanism of fan 20, not increase the part number of indoor set 100, noise/soundproof effect can be set detect microphone 211, thereby can realize arranging the higher indoor set of the free degree 100.Owing to detecting microphone 211, noise/soundproof effect do not detect the intrinsic mechanical oscillation that the rotation along with fan 20 produces, thereby be located at the situation of the not dynamic component of fan 20 and compare with noise/soundproof effect being detected microphone 211, can carry out the higher active of precision and eliminate the noise.
In addition, in the indoor set 100 of present embodiment 6, noise/soundproof effect detects the scope that is arranged in cylindrical region S in the fixed part 17 that microphone 211 is arranged on fan 20.Therefore, can reduce the impact from the air-flow of the blow-off outlet of fan 20, can detect the sound higher with the coherence of noise, thereby can carry out high-precision active and eliminate the noise.In addition, need not change the mechanism of fan 20, not increase the part number of the part number of air conditioner, noise/soundproof effect can be set detect microphone 211, thereby can realize arranging the higher indoor set of the free degree 100.
In addition, in the indoor set 100 of present embodiment 6, noise/soundproof effect detects the scope that is arranged in cylindrical region S that microphone 211 is arranged on heat exchanger 50.Therefore, can reduce the impact from the air-flow of the blow-off outlet of fan 20, can detect the sound higher with the coherence of noise, thereby can carry out high-precision active and eliminate the noise.In addition, need not change the mechanism of fan 20, not increase the part number of the part number of air conditioner, noise/soundproof effect can be set detect microphone 211, thereby can realize arranging the higher indoor set of the free degree 100.And, owing to detecting microphone 211, noise/soundproof effect do not detect the intrinsic mechanical oscillation that the rotation along with fan 20 produces, thereby be located at the situation of the not dynamic component of fan 20 and compare with noise/soundproof effect being detected microphone 211, can carry out the higher active of precision and eliminate the noise.
In addition, in the indoor set 100 of present embodiment 6, noise/soundproof effect detects the scope that is arranged in cylindrical region S that microphone 211 is arranged on heat exchanger fixed part 58.Therefore, can reduce the impact from the air-flow of the blow-off outlet of fan 20, can detect the sound higher with the coherence of noise, thereby can carry out high-precision active and eliminate the noise.In addition, need not change the mechanism of fan 20, not increase the part number of the part number of air conditioner, noise/soundproof effect can be set detect microphone 211, thereby can realize arranging the higher indoor set of the free degree 100.And, owing to detecting microphone 211, noise/soundproof effect do not detect the intrinsic mechanical oscillation that the rotation along with fan 20 produces, thereby be located at the situation of the not dynamic component of fan 20 and compare with noise/soundproof effect being detected microphone 211, can carry out the higher active of precision and eliminate the noise.
In addition, in the indoor set 100 of present embodiment 6, utilize wall components 270 to cover noise/soundproof effect and detect microphone 211.By intercepting air-flow, noise/soundproof effect detects microphone 211 and more is not vulnerable to the impact of air-flow, thereby can access higher soundproof effect.
Embodiment 7.
The such indoor set 100 of explanation in present embodiment 7, this indoor set 100 detects microphone 211 on the top of blow-off outlet 3 so that noise/soundproof effect to be set towards the mode with the stream opposition side.In addition, in present embodiment 7, do not have the special project of recording and narrating identical with embodiment 5 or embodiment 6, use identical label to narrate to identical function or structure.
Figure 33 is the profilograph that the indoor set of embodiments of the present invention 7 is shown.This Figure 33 with the right side of figure as the front face side of indoor set 100 and illustrate.
The indoor set 100 of present embodiment 7 is with the difference of the indoor set 100 of embodiment 6, detects microphone 211 on the top of blow-off outlet 3 to configure noise/soundproof effect towards the mode with the stream opposition side.Correspondingly the structure of signal processing apparatus 208 is also different therewith.Top and stream rightabout at blow-off outlet 3 are installed in the situation of noise/soundproof effect detection microphone 211, same with embodiment 6, do not increase new part number, noise/soundproof effect can easily be installed detect microphone 211, do not need accurate installing mechanism.Output needle to the control loudspeaker 181 of the control sound of noise to be configured in the side wall portion of the housing 1 of indoor set 100 towards the mode of wind path central authorities from wall.In addition, configure noise/soundproof effect on the top of blow-off outlet 3 in the mode towards the opposition side of stream and detect microphone 211, its detection makes the control sound and the sound of the air-supply sound that comprises fan 20 after the operating sound (noise) of interior indoor set 100 is interfered from control loudspeaker 181 outputs.It is signal processing apparatus 208 that the noise/output signal of soundproof effect detection microphone 211 is imported into for the control sound generating apparatus that generates the signal (control sound) that control loudspeaker 181 is controlled.
Figure 34 illustrates the structure chart of signal processing apparatus 208.Be with the difference of signal processing apparatus 204 shown in Figure 11, between the input of the output of A/D converter 152 and LMS algorithm device 159, dispose weighted units 153.Structure beyond this is identical with the signal processing apparatus 204 of embodiment 2.
Then, the action of indoor set 100 described.When indoor set 100 action, the impeller 25 of fan 20 is rotated, the air in the fan 20 upside suction chambers, and carry air to fan 20 downsides, produce thus air-flow.Follow in this, produce operating sound (noise) near the blow-off outlet of fan 20, this sound downstream side is propagated.Near the blow-off outlet of fan 20, same with embodiment 5 and embodiment 6, owing to the rotation of impeller 25 produces air turbulence.In addition, the air that blows out from fan 20 blows out toward the outer side from the blow-off outlet of fan 20, thereby bumps against the sidewall of the basket of indoor set 100, further causes air turbulence.Therefore, the pressure oscillation that causes in the side-walls air turbulence of indoor set 100 increases.
But in present embodiment 7, noise/soundproof effect detects that microphone 211 is configured in the top of blow-off outlet 3 and towards the direction opposite with stream.Compare near the blow-off outlet 3 with near the fan 20, enough large to the distance of the blow-off outlet of the larger fan 20 of air turbulence.In addition, near blow- off outlet 3,50 pairs of air turbulence of heat exchanger are carried out rectification.Therefore, near the air turbulence noise/soundproof effect detection microphone 211 diminish.In addition, air-flow does not directly impact and is provided with the zone that noise/soundproof effect detects microphone 211, thereby noise/soundproof effect detects the impact that microphone 211 is subjected to air turbulence hardly.In addition, the noise from indoor set 100 that the people feels is to be blown out to noise after indoor from blow-off outlet 3, thereby namely indoor towards the opposition side of stream by making noise/soundproof effect detect microphone 211, can detect and be blown out to indoor noise.That is, detect microphone 211 by the top at blow-off outlet 3 towards with stream noise/soundproof effect being installed on the contrary, can detect the sound higher with being blown out to indoor noise coherence.
Then, the inhibition method of the operating sound of indoor set 100 described.The generation method of the control sound of present embodiment 7 is identical with the method for record in the embodiment 2.The difference of the method for recording and narrating in the generation method of the control sound of present embodiment 7 and the embodiment 2 is, averages as the signal that error signal is input to LMS algorithm device 159 by 153 pairs of weighted units.Configure in the top of blow-off outlet 3 direction opposite with stream in the situation of noise/soundproof effect detection microphone 211, detect in the noise of microphone 211 detections at noise/soundproof effect, comprise the noise sound in addition that much produce from fan 20.Therefore, cause the stability of FEEDBACK CONTROL by the infringement of the sound beyond these noises.Therefore, in present embodiment 7, in the prime configuration weighted units 153 of FEEDBACK CONTROL, thus with the sound equalization beyond the noise.Thus, can eliminate the composition of incoherent noise sound in addition, FEEDBACK CONTROL is stably worked.That is, can improve from blow-off outlet 3 and be blown out to the coherence that noise after indoor and noise/soundproof effect detect microphone 211.
In addition, same with embodiment 5, also can be before LMS algorithm device 159 is stablized, not to be weighted the equalization that unit 153 is carried out.This be because, during LMS algorithm device 159 is unstabilized, can not fully reduce noise, have the output valve situation out of control of weighted units 153.In addition, also can be set as to surpass in the situation of certain value in the output valve of weighted units 153 and reset.In addition, in order further not to be subjected to the impact of air-flow, also can to utilize wall components 270 to cover noise/soundproof effect and detect microphone 211.Owing to can intercept air-flow by wall components, thereby more not be vulnerable to the impact of air-flow, can access higher soundproof effect.
In addition, the setting position of noise/soundproof effect detection microphone 211 is not limited to the top of blow-off outlet 3, so long as the peristome of blow-off outlet 3 gets final product.For example also noise/soundproof effect can be detected bottom or the sidepiece that microphone 211 is installed in blow-off outlet 3.In addition, noise/soundproof effect detects microphone 211 does not need to be set to exactly direction towards opposite with stream.As long as towards indoor set 100(housing) arranged outside noise/soundproof effect detect microphone 211.That is, as long as noise/soundproof effect detection microphone 211 is arranged on and can detects the position that is output to indoor noise.
In addition, in present embodiment 7, FIR wave filter 158 and LMS algorithm device 159 in signal processing apparatus 208, have been used, but so long as the Sound close by noise/soundproof effect detection microphone 211 detects is got final product in zero self-adaptive signal processing circuit, can utilize the filtered-X algorithm that in active sound reduction method, usually adopts.In addition, weighted units 153 needs not be integrator, so long as the unit that can average gets final product.In addition, signal processing apparatus 208 needs not be the structure of carrying out Adaptive Signal Processing, also can be the structure that generates control sound according to fixing tap coefficient.In addition, signal processing apparatus 208 needs not be digital signal processing circuit, also can be analog signal processing circuit.
Above, in the indoor set 100 of present embodiment 7, will detect the peristome that microphone 211 is located at blow-off outlet 3 as the noise of noise/soundproof effect checkout gear/soundproof effect, and towards the configuration of the outside of indoor set 100.Therefore, can not be subjected to the impact ground detection of air-flow to be output to indoor noise.Therefore, the detection sound for room noise and noise/soundproof effect from indoor set 100 outputs detect microphone 211 can access higher coherence.Therefore, can carry out high-precision active to the room noise from indoor set 100 outputs eliminates the noise.
In addition, in the indoor set 100 of present embodiment 7, signal processing apparatus 208 as control sound generating apparatus has following circuit, this circuit is to being weighted by detect the testing result that microphone 211 detects as the noise of noise/soundproof effect checkout gear/soundproof effect, and carries out FEEDBACK CONTROL.Therefore, can be to averaging and eliminate by the sound except the noise of indoor set 100 that noise/soundproof effect detection microphone 211 detects.Therefore, can carry out the higher active of precision eliminates the noise.In addition, in the indoor set 100 of present embodiment 7, utilize wall components 270 to cover noise/soundproof effect and detect microphone 211.By intercepting air-flow, noise/soundproof effect detects microphone 211 and more is not subjected to the impact of air-flow, thereby can access higher soundproof effect.
Embodiment 8.
(fan is controlled separately)
Be located at the rotating speed of each fan 20 of indoor set 100 by control individually, can further improve the soundproof effect of active noise elimination mechanism.In addition, in present embodiment 8, use identical label to narrate to the function identical with embodiment 1～embodiment 7 or structure.
Figure 35 is the front view that the indoor set of embodiments of the present invention 8 is shown.In addition, Figure 36 is the side view that indoor set shown in Figure 35 is shown.In addition, Figure 36 be from the filling of Figure 35 the direction of arrow of oblique line observe the figure of indoor set 100 shown in Figure 35, see through indoor set 100 housing 1 sidewall and illustrate.In addition, in Figure 36, omit the diagram of remote controller 280 shown in Figure 35, control device 281 and motor driver 282A～282C.
Figure 35 and indoor set 100 shown in Figure 36 at indoor set 100(more particularly, the housing 1 of indoor set 100) upper opening form suction inlet 2, at indoor set 100(more particularly, the housing 1 of indoor set 100) lower ending opening form blow-off outlet 3.That is, in indoor set 100, be formed with the wind path that is communicated with suction inlet 2 and blow-off outlet 3.And the downside of the suction inlet 2 in wind path is provided with a plurality of fans 20 with impeller 25 along left and right directions (length direction).In addition, in present embodiment 8, be provided with 3 fans (fan 20A～20C).The rotating shaft center that these fans 20A～20C is configured to impeller 25 becomes the approximate vertical direction.These fans 20A～20C is connected with the Air Blast fan control module 171 of control device 281 via motor driver 282A～282C respectively.In addition, be described in detail in the back control device 281.
Dispose heat exchanger 50 below fan 20A～20C, it carries out heat exchange to air and cools off or heat.Shown in the hollow arrow of Figure 35, when fan 20A～20C works, air in the wind path suction chamber from suction inlet 2 to indoor set in 100, this air amount are positioned at heat exchanger 50 coolings or the heating of fan 20A～20C bottom, then blow out to indoor from blow-off outlet 3.
In addition, the indoor set 100 of present embodiment 8 is provided with the noise elimination mechanism for active noise elimination.The noise elimination mechanism of the indoor set 100 of present embodiment 8 by noise measuring microphone 161,162, control loudspeaker 181,182, soundproof effect detect microphone 191,192 and signal processing apparatus 201,202 consist of.That is, the noise elimination mechanism of the indoor set 100 of present embodiment 8 has two noise measuring microphones, two control loudspeakers and two soundproof effects detection microphones.Below, will be made as the A of noise elimination mechanism by the noise elimination mechanism that noise measuring microphone 161, control loudspeaker 181, soundproof effect detection microphone 191 and signal processing apparatus 201 consist of.In addition, will be made as the B of noise elimination mechanism by the noise elimination mechanism that noise measuring microphone 162, control loudspeaker 182, soundproof effect detection microphone 192 and signal processing apparatus 202 consist of.
Noise measuring microphone 161, the 162nd is for detection of the noise detection apparatus of the air-supply sound that comprises fan 20A～20C (noise that sends from fan 20A～20C) in the operating sound (noise) of interior indoor set 100.Noise measuring microphone 161,162 is arranged on the position (for example, between fan 20A～20C and the heat exchanger 50) in the downstream that is positioned at fan 20A～20C.In addition, noise measuring microphone 161 is located at the left surface of indoor set 100, and noise measuring microphone 162 is located at the right flank of indoor set 100.
Control loudspeaker 181, the 182nd, output needle is to the control voice output of the control sound of noise.Control loudspeaker 181,182 is arranged on the position (for example, the downstream of heat exchanger 50) that is positioned at noise measuring microphone 161,162 downstream.In addition, control loudspeaker 181 is located at the left surface of indoor set 100, and control loudspeaker 182 is located at the right flank of indoor set 100.And control loudspeaker 181,182 configures towards the mode of wind path central authorities with the wall from the housing 1 of indoor set 100.
Soundproof effect detects microphone 191, the 192nd, detects the soundproof effect checkout gear of the soundproof effect of control sound.Soundproof effect detects microphone 191,192 and is arranged on the position that is positioned at control loudspeaker 181,182 downstream.In addition, soundproof effect detects on the roughly extended line that microphone 191 is arranged on the rotating shaft of fan 20A for example, and soundproof effect detects on the roughly extended line that microphone 192 is arranged on the rotating shaft of fan 20C for example.In addition, in present embodiment 8, be provided with soundproof effect at the nozzle 6 that forms blow-off outlet 3 and detect microphone 191,192.That is, soundproof effect detects microphone 191,192 and detects the noise that spreads out of from blow-off outlet 3, detects soundproof effect.
The structure shown in Figure 8 of explanation is identical in signal processing apparatus 201,202 structure and the embodiment 1.
Figure 37 is the structure chart that the control device of embodiments of the present invention 8 is shown.
Below the exercises of explanation and unit are undertaken by carry out the program of installing in the control device 281 that indoor set 100 has.Control device 281 mainly has for input from the input part 130 of the signal of the external input device such as remote controller 280, carry out the CPU131 of computing and the memory 132 that is used for storage data and/or program according to the program of installing.In addition, CPU131 has Air Blast fan control module 171.
Air Blast fan control module 171 has that same rotational speed determining means 133, fan are controlled separately rotating speed determining means 134 and a plurality of SW135(quantity is identical with fan 20).Same rotational speed determining means 133 is according to the operation information from remote controller 280 inputs, the rotating speed when determining to make fan 20A～20C all with identical rotary speed working.Be such as the cooling operation pattern, heat the operation mode information such as operation mode and dehumidifying operation mode from the operation information of remote controller 280 input, perhaps strong, in, the air quantity information such as weak.Fan is controlled separately the every speed that rotating speed determining means 134 determines when controlling individually the rotating speed of fan 20A～20C.SW 135 switches to the rotation control signal of the fan 20A～20C of motor driver 282A～282C conveying according to from for example signal of remote controller 280 inputs.That is, SW 135 is used for switching to making fan 20A～20C all with identical rotary speed working, perhaps makes fan 20A～20C with independent separately rotary speed working.
Then, the action of indoor set 100 described.
When indoor set 100 action, the impeller of fan 20A～20C is rotated, the air in the upside suction chamber of fan 20A～20C, and carry air to fan 20A～20C downside, produce thus air-flow.Follow in this, produce operating sound (noise) near the blow-off outlet of fan 20A～20C, this sound downstream side is propagated.The air of being carried by fan 20A～20C passes through in wind path, and heat exchanger 50 is carried.For example, when carrying out cooling operation, from the cold-producing medium of pipe arrangement heat exchanger 50 transporting low temperatures that are connected with off-premises station (not shown).The air that heat exchanger 50 is carried is become cold air by the refrigerant cools that flows in heat exchanger 50, directly send to indoor from blow-off outlet 3.
In addition, action and the embodiment 1 of the A of noise elimination mechanism and the B of noise elimination mechanism are identical, so that export control sound by soundproof effect detection microphone 191,192 noises that detect close to zero mode, consequently, suppress the action that soundproof effect detects the noise in the microphone 191,192.
In active sound reduction method, with detect microphone 191 at soundproof effect, 192 setting position (control point) becomes and the mode of noise opposite phase, from control loudspeaker 181,182 output control sound.Therefore, soundproof effect detect microphone 191,192 near, soundproof effect improves, but the phase generate variation of control sound when away from this.Therefore, detecting the position that microphone 191,192 leaves distance with soundproof effect, noise increases with the phase deviation of control sound, causes soundproof effect to reduce.
Then, the control method of the rotating speed of controlling individually fan 20A～20C (below, be also referred to as fan and control separately) is described.
The operation information of being selected by remote controller 280 is imported into control device 281.Operation information is such as the cooling operation pattern, heats the operation mode information such as operation mode and dehumidifying operation mode.In addition, strong, in, the air quantity information such as weak too, as operation information 281 inputs from remote controller 280 to control device.The operation information that is imported into control device 281 is imported into same rotational speed determining means 133 via input part 130.Be transfused to the same rotational speed determining means 133 of operation information according to the operation information of inputting, the rotating speed when determining to make fan 20A～20C all with identical rotary speed working.In the situation that do not carry out separately control of fan, all with below identical rotating speed control fan 20A～20C(, be also referred to as same rotational speed control).
The input information of the rotating speed (rotating speed during same rotational speed control) that is determined by same rotational speed determining means 133 is controlled separately rotating speed determining means 134 to fan.On the other hand, control separately in the rotating speed determining means 134 pre-stored Air Blast fan information in memory 132 when reading product export at fan.This Air Blast fan information is the information that output makes the fan 20 of the higher noise of the soundproof effect of control during interference of sound.That is, this Air Blast fan information is to detect the information of microphone 191, fan 20 that 192 relevances are higher with soundproof effect.These identification numbers detect microphone according to each soundproof effect and distribute.In present embodiment 8, as Air Blast fan information, use the identification number that detects the fan 20 of microphone 191,192 nearest (relevance is high) with soundproof effect.Particularly, be to detect the identification number of the nearest fan 20A of microphone 191 and detect the identification number of the nearest fan 20C of microphone 192 with soundproof effect with soundproof effect.
Fan is controlled separately rotating speed determining means 134 according to the rotary speed information that is determined by same rotational speed determining means 133 and the Air Blast fan information of reading from memory 132, determines the rotating speed of each fan 20 when carrying out fan controls separately.Particularly, fan is controlled separately rotating speed determining means 134 and is improved with soundproof effect and detect microphone 191,192 nearest fan 20A, the rotating speed of 20C, and reduces the rotating speed that detects microphone 191,192 fan 20B away from soundproof effect.At this moment, also can be so that the air quantity that carries out obtaining when fan is controlled separately becomes the mode of air quantity identical when controlling with same rotational speed, to determine the rotating speed of each fan 20A～20C.Because air quantity and rotating speed have proportionate relationship, thereby for example in the situation of the such structure of Figure 35, by the rotating speed raising 10% with fan 20A and fan 20C, thereby and the rotating speed reduction by 20% of fan 20B obtained identical air quantity.
In the situation of having inputted the movement information signal (such as signals such as silent modes) that will carry out the independent control of fan from remote controller 280, by switching SW 135, switch to the separately rotation control signal of control of fan from the rotation control signal of same rotational speed control, and with the 20A～20C output from control device 281 to fan of this rotation control signal.Be imported into motor driver 282A～282C from the rotation control signal of control device 281 outputs, control fan 20A～20C becomes and the corresponding rotating speed of rotation control signal.
As mentioned above, when carrying out active noise elimination, as the soundproof effect at the control point of noise control detect microphone 191,192 and the soundproof effect of periphery improve, but in the position away from the control point, increase from the control sound of control loudspeaker 181,182 outputs and the phase deviation of noise, cause soundproof effect to reduce.Yet, be in indoor set 100, to have the structure of a plurality of fan 20A～20C in present embodiment 8, thereby can improve the fan that detects the higher noise of fan 20A, the 20C(output soundproof effect of microphone 191,192 near distances with the higher soundproof effect of soundproof effect) rotating speed, and reduce the fan that detects microphone 191, noise that 192 fan 20B(output soundproof effect is lower away from soundproof effect) rotating speed.
Consequently, the indoor set 100 of present embodiment 8 soundproof effect in the higher zone of soundproof effect further improves, noise reduces in the lower zone of soundproof effect, thereby with the indoor set that uses single fan or do not carry out fan separately the indoor set of control compare, can reduce the noise that sends from blow-off outlet 3 integral body.In addition, by control the rotating speed of a plurality of fan 20A～20C in the certain mode of air quantity, can also realize not reducing aeroperformance.
In addition, such as Figure 38 and shown in Figure 39, be divided into a plurality of zones by the wind path with indoor set 100, can further improve soundproof effect.
Figure 38 is another routine front view that the indoor set of embodiments of the present invention 8 is shown.In addition, Figure 39 is the left side view of indoor set shown in Figure 38.In addition, Figure 39 illustrates through the sidewall of the housing 1 of indoor set 100.Figure 38 and indoor set 100 usefulness dividing plates 90,90a shown in Figure 39 are cut apart wind path, are divided into thus the zone that air that the zone zone that air that fan 20A blows out passes through, air that fan 20B blows out passed through and fan 20C blow out passes through.And the noise measuring microphone 161 of the A of noise elimination mechanism, control loudspeaker 181 and soundproof effect detect microphone 191 and are configured in the zone that air that fan 20A blows out passes through.In addition, the noise measuring microphone 162 of the B of noise elimination mechanism, control loudspeaker 182 and soundproof effect detect microphone 192 and are configured in the zone that air that fan 20C blows out passes through.
By such formation indoor set 100, can be with the noise separation sent from fan 20A～20C to regional, the A of noise elimination mechanism only reduces the noise that sends from fan 20A, and the B of noise elimination mechanism only reduces the noise that sends from fan 20C.Therefore, can prevent noise measuring microphone 161,162 and soundproof effect detect microphone 191,192 and detect the noise that sends from fan 20B, thereby noise measuring microphone 161,162 and soundproof effect detects microphone 191,192 crosstalk noise composition reduces.
In addition, wind path is close to pipe configuration, thereby can catch noise in one dimension.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces, thereby soundproof effect further improves.On the other hand, reduce the rotating speed of the fan 20B that noise elimination mechanism is not set, thus, the noise that the zone of noise elimination mechanism is not set reduces.Therefore, by as Figure 38 and Figure 39, consisting of indoor set 100, compare with the structure of Figure 35, can further reduce noise.In addition, in Figure 38 and Figure 39, in the whole zone of wind path, inserted dividing plate, but for example also can be only at the upstream side of heat exchanger 50 or only in the downstream of heat exchanger 50, with the part of baffle for separating wind path.
In addition, in present embodiment 8, noise measuring microphone 161,162 is arranged on the two sides of indoor set 100, but so long as control loudspeaker 181,182 upstream side, noise measuring microphone 161,162 setting position can be any positions.In addition, in present embodiment 8, control loudspeaker 181,182 is arranged on the two sides of indoor set 100, but so long as noise measuring microphone 161,162 downstream and be that soundproof effect detects microphone 191,192 upstream side, control loudspeaker 181,182 setting position can be any positions.In addition, in present embodiment 8, soundproof effect is detected on the roughly extended line of rotating shaft that microphone 191,192 is configured in fan 20A, 20C, but so long as control loudspeaker 181,182 downstream, then soundproof effect detects microphone 191,192 setting position can be any position.In addition, in present embodiment 8, configure respectively two noise measuring microphones, control loudspeaker, soundproof effect detection microphone and signal processing apparatus, but quantity is not limited to this.
In addition, in present embodiment 8, field programmable gate array) large scale integrated circuit) or FPGA(Field Programmable Gate Array consist of Air Blast fan control module 171 by the CPU 131 in the control device 281, but also can pass through LSI(Large Scale Integration:: the hardware formation Air Blast fan control module 171 such as.In addition, the structure of Air Blast fan control module 171 also is not limited to structure shown in Figure 37.
In addition, in present embodiment 8, Air Blast fan control module 171 constitutes, improve with soundproof effect and detect microphone 191, the fan 20A of 192 near distances, the rotating speed of 20C, and, reduce the rotating speed of the fan 20B of distance, but also can constitute a side who only carries out wherein.
Above, in the indoor set 100 of present embodiment 8, configure a plurality of fan 20A～20C, and the control device 281(that the rotating speed control individually fan 20A～20C is set more particularly is Air Blast fan control module 171).Air Blast fan control module 171 is controlled, be the soundproof effect fan 20A that detects near the zones air-supply the microphone 191,192, the rotating speed of 20C to improve to the higher zone of soundproof effect, and carry out rotating speed control, to reduce to the lower zone of soundproof effect namely the rotating speed that detects the fan 20B of microphone 191,192 zones air-supplies far away apart from soundproof effect.Therefore, the regional soundproof effect that soundproof effect is higher further improves, and the noise region that soundproof effect is lower reduces.Therefore, with the indoor set that in the noise elimination mechanism of same structure, uses single fan or do not carry out fan separately the indoor set of control compare, can access higher reducing noise effect.
In addition, Air Blast fan control module 171 control fan 20A～20C rotating speed separately, so that it is identical with the air quantity from blow-off outlet 3 outputs that has carried out in the situation of same rotational speed control in the situation of control separately to have carried out fan, thereby can reduces noise and do not make aeroperformance decline.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, can make each self-separation of noise of sending from fan 20A～20C, the A of noise elimination mechanism only reduces the noise that sends from fan 20A, and the B of noise elimination mechanism only reduces the noise that sends from fan 20C.Therefore, the crosstalk noise composition that the noise that sends from fan 20B causes reduces.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, make wind path near pipe configuration, thereby can in one dimension, catch noise.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces.In addition, reduce the rotating speed of the fan 20B that noise elimination mechanism is not set, the noise that the zone of noise elimination mechanism is not set thus reduces, and compares with the structure of Figure 35, can access higher reducing noise effect.
Embodiment 9.
Be not limited to the structure of embodiment 8, also can detect soundproof effect that microphone detects according to soundproof effect and carry out fan and control separately.In addition, in present embodiment 9, by with the difference of above-mentioned embodiment 8 centered by describe the label identical to the part mark identical with embodiment 8.
Figure 40 is the front view of the indoor set of embodiments of the present invention 9.
The indoor set 100 of present embodiment 9 is with the difference of the indoor set 100 of embodiment 8, is provided with the C(of noise elimination mechanism noise measuring microphone 163, control loudspeaker 183, soundproof effect detection microphone 193 and signal processing apparatus 203).The structure of signal processing apparatus 203 and signal processing apparatus 201,202 identical.In addition, it is identical with embodiment 8 that noise measuring microphone 163, control loudspeaker 183 and soundproof effect detect the installation site of microphone 193, sets gradually noise measuring microphone 163, control loudspeaker 183 and soundproof effect detection microphone 193 from the downstream of fan 20B and get final product
In addition, also be provided with 172 holding wires that connect (carrying the holding wire of signal S1, S2, S3) from signal processing apparatus 201～203 to the Air Blast fan control module, this point is also different from the indoor set 100 of embodiment 8.Therefore, also the structure from the Air Blast fan control module 171 of embodiment 8 is different for the structure of Air Blast fan control module 172.Particularly, from signal processing apparatus 201～203 to the Air Blast fan control module 172 signal S1, S2, the S3 that carry to be signals of detecting microphone 191～193 inputs from soundproof effect carry out signal after the digital translation via microphone amplifier 151 and by A/D converter 152.That is, signal S1, S2, S3 are the digital values that is detected the sound pressure level that microphone 191～193 detects by soundproof effect.
Then, the structure of Air Blast fan control module 172 described.
Figure 41 is the structure chart that the control device of embodiments of the present invention 9 is shown.Below exercises and the unit of explanation are undertaken by carrying out the program of installing in the control device 281 that indoor set 100 has.Identical with the structure of narration in embodiment 8, control device 281 mainly has input from the input part 130 of the signal of the external input device such as remote controller 280, carry out the CPU 131 of computing and the memory 132 of storage data or program according to the program of installing.In addition, CPU 131 has Air Blast fan control module 172.
Air Blast fan control module 172 has same rotational speed determining means 133, a plurality of equalizations unit 136(quantity and soundproof effect, and to detect microphone identical), rotating speed determining means 134A controlled separately by fan and a plurality of SW 135(quantity is identical with fan 20).Same rotational speed determining means 133 is according to the operation information of inputting from remote controller 280, the rotating speed when determining fan 20A～20C is all worked with same rotational speed.Be such as the cooling operation pattern, heat the operation mode information such as operation mode and dehumidifying operation mode from the operation information of remote controller 280 input, perhaps strong, in, the air quantity information such as weak.Equalization unit 136 is used for inputting digital value S1, S2, the S3 of the sound pressure level that is detected by soundproof effect detection microphone 191～193, and the signal of these S1, S2, S3 was averaged according to a certain set time.
Fan is controlled separately rotating speed determining means 134A according to by each signal of S1, S2 after equalization unit 136 equalizations, S3 with from the rotary speed information of same rotational speed determining means 133 inputs, determines fan 20A～20C is carried out separately the rotating speed of fan when controlling separately.SW135 switches to the rotation control signal of the fan 20A～20C of motor driver 282A～282C conveying for example according to the signal from remote controller 280 inputs.That is, SW 135 is used for switching makes fan 20A～20C all with identical rotary speed working (carrying out same rotational speed control), perhaps makes fan 20A～20C with rotary speed working (carrying out fan controls separately) independently separately.
Then, the action of indoor set 100 described.
Identical with embodiment 8, when indoor set 100 action, the impeller of fan 20A～20C is rotated, the air in the upside suction chamber of fan 20A～20C, and carry air to fan 20A～20C downside, produce thus air-flow.Follow in this, produce operating sound (noise) near the blow-off outlet of fan 20A～20C, this sound downstream side is propagated.The air of being carried by fan 20A～20C passes through in wind path, and heat exchanger 50 is carried.For example, when carrying out cooling operation, from the cold-producing medium of pipe arrangement heat exchanger 50 transporting low temperatures that are connected with off-premises station (not shown).The air that heat exchanger 50 is carried is become cold air by the refrigerant cools that flows in heat exchanger 50, directly emit to indoor from blow-off outlet 3.
In addition, action and the embodiment 8 of the A～C of noise elimination mechanism are identical, export control sound so that detect the noise that microphone 191～193 detects by soundproof effect close to zero mode, consequently, suppress the action that soundproof effect detects the noise in the microphone 191～193.
In addition, in the situation of the indoor set 100 of present embodiment 9, except the noise that sends from fan 20B, also enter soundproof effect from the fan 20A of adjacency, the noise that 20C sends (crosstalk noise composition) and detect microphone 193.On the other hand, detect microphone 191, the 192 crosstalk noise compositions that detect and compare little by the crosstalk noise composition that soundproof effect detection microphone 193 detects by soundproof effect.Because soundproof effect detects the fan 20(fan 20B that microphone 191,192 only has an adjacency).Therefore, compare with the C of noise elimination mechanism, the soundproof effect of the A of noise elimination mechanism, B is high.
Then, to the fan of the fan 20A～20C of present embodiment 9 separately control describe.
The operation information that utilizes remote controller 280 to select is imported into control device 281.As mentioned above, operation information is such as the cooling operation pattern, heats the operation mode information such as operation mode and dehumidifying operation mode.In addition, strong, in, the air quantity information such as weak too, as operation information 281 inputs from remote controller 280 to control device.The operation information that is imported into control device 281 is imported into same rotational speed determining means 133 via input part 130.Inputted the same rotational speed determining means 133 of operation information according to the operation information of inputting, the rotating speed when decision is carried out same rotational speed control to fan 20A～20C.
On the other hand, the S1～S3(of 136 inputs are detected the digital value of the sound pressure level that microphone 191～193 detects by soundproof effect from signal processing apparatus 201～203 to the equalization unit) average out unit 136 and average during fixing according to a certain.
These S1～S3 are averaged respectively the sound pressure level value that obtains and the information of the rotating speed (rotating speed during same rotational speed control) that determined by same rotational speed determining means 133 is imported into fan and controls separately rotating speed determining means 134A.Fan is controlled separately rotating speed determining means 134A according to these information, determines the rotating speed of each fan 20 when carrying out fan controls separately.Particularly, determine as follows the rotating speed of fan, the soundproof effect that sound pressure level value after raising and the equalization is less detects the rotating speed of (relevance is higher) fan of microphone near distance, and the larger soundproof effect of the sound pressure level value after reduction and the equalization detects the rotating speed of (relevance is higher) fan of microphone near distance.At this moment, also can be, so that carry out the mode that air quantity that fan obtains in the situation of control separately becomes air quantity identical when control with same rotational speed, decision fan 20A～20C rotating speed separately.
For example, in the indoor set 100 of present embodiment 9, mean value in the noise level that is detected by soundproof effect detection microphone 191 is 45dB, the mean value that is detected the noise level that microphone 192 detects by soundproof effect is 45dB, and the mean value that is detected the noise level that microphone 193 detects by soundproof effect is in the situation of 50dB, fan is controlled separately rotating speed determining means 134A with the rotating speed of raising fan 20A, 20C, and the mode of the rotating speed of attenuating fan 20B determines the rotating speed of each fan 20.Air quantity and rotating speed have proportionate relationship, thereby for example in the situation of the such structure of Figure 40, improve 10% by the rotating speed with fan 20A and fan 20C, and the rotating speed of fan 20B is reduced by 20% and obtain identical air quantity.
In addition, the determining method of the rotating speed of above-mentioned fan 20A～20C only is an example.For example, mean value in the noise level that is detected by soundproof effect detection microphone 191 is 45dB, the mean value that is detected the noise level that microphone 192 detects by soundproof effect is 47dB, and the mean value that is detected the noise level that microphone 193 detects by soundproof effect is in the situation of 50dB, also can be, with the rotating speed that improves fan 20A, reduce the rotating speed of fan 20B and keep the mode of the rotating speed of fan 20C, determine the rotating speed of each fan 20.Namely, also can be, to improve the rotating speed that detects the fan 20A of microphone 191 near distances with the soundproof effect of the noise level minimum that detects, reduce the rotating speed that detects the fan 20B of microphone 193 near distances with the soundproof effect of the noise level maximum that detects, and keep the mode of the rotating speed of the fan 20C that does not belong to above situation, determine the rotating speed of each fan 20.
To carry out fan separately in the situation of the movement information signal of control (such as the signal of silent mode etc.) having inputted from remote controller 280, by switching SW135, switch to the separately rotation control signal of control of fan from the rotation control signal of same rotational speed control, and with the 20A～20C output from control device 281 to fan of this rotation control signal.Be imported into motor driver 282A～282C from the rotation control signal of control device 281 outputs, fan 20A～20C is controlled to be and the corresponding rotating speed of rotation control signal.
At this, as mentioned above, in the situation of the indoor set 100 of present embodiment 9, because from the size of the crosstalk noise composition of the fan of adjacency, compare with near the zone soundproof effect detects microphone 193, near the regional soundproof effect that soundproof effect detects the microphone 191,192 is higher.That is, in the situation of the indoor set 100 of present embodiment 9, compare with near the zone soundproof effect detects microphone 193, soundproof effect detects the noise level that detects near the zone the microphone 191,192 and reduces.On the other hand, near the regional soundproof effects the soundproof effect detection microphone 193 reduce.Therefore, in the indoor set 100 of the present embodiment 9 with a plurality of fan 20A～20C, in the mean value of the noise level value that is detected by soundproof effect detection microphone 191～193, improve with the less soundproof effect of the noise level mean value that detects and detect microphone 191, the fan 20A of 192 near distances, the rotating speed of 20C, reduce the rotating speed that detects the fan 20B of microphone 193 near distances with the larger soundproof effect of the noise level mean value that detects.
Consequently, the indoor set 100 of present embodiment 9 further improves at the higher regional soundproof effect of soundproof effect, the noise region lower at soundproof effect reduces, thereby with the indoor set that uses single fan or do not carry out fan separately the indoor set of control compare, can reduce the noise that sends from blow-off outlet 3 integral body.
In addition, such as Figure 42 and shown in Figure 43, be divided into a plurality of zones by the wind path with indoor set 100, can further improve soundproof effect.
Figure 42 is another routine front view that the indoor set of embodiments of the present invention 9 is shown.In addition, Figure 43 is the left side view of indoor set shown in Figure 42.In addition, Figure 43 illustrates through the sidewall of the housing 1 of indoor set 100.Figure 42 and indoor set 100 usefulness dividing plates 90,90a shown in Figure 43 are cut apart wind path, are divided into thus the zone that air that the zone zone that air that fan 20A blows out passes through, air that fan 20B blows out passed through and fan 20C blow out passes through.And the noise measuring microphone 161 of the A of noise elimination mechanism, control loudspeaker 181 and soundproof effect detect microphone 191 and are configured in the zone that air that fan 20A blows out passes through.In addition, the noise measuring microphone 162 of the B of noise elimination mechanism, control loudspeaker 182 and soundproof effect detect microphone 192 and are configured in the zone that air that fan 20C blows out passes through.In addition, the noise measuring microphone 163 of the C of noise elimination mechanism, control loudspeaker 183 and soundproof effect detect microphone 193 and are configured in the zone that air that fan 20B blows out passes through.
By such formation indoor set 100, can be with the noise separation sent from fan 20A～20C regional, the A of noise elimination mechanism only reduces the noise that sends from fan 20A, and the B of noise elimination mechanism only reduces the noise that sends from fan 20C, and the C of noise elimination mechanism only lowers the noise that sends from fan 20B.Therefore, noise measuring microphone 161～163 and soundproof effect detect the crosstalk noise composition that microphone 191～193 detects (noise that sends from the fan of the stream of being located at adjacency) and reduce.
In addition, wind path is close to pipe configuration, thereby can catch noise in one dimension.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces, thereby soundproof effect further improves.Therefore, by as Figure 42 and Figure 43, consisting of indoor set 100, compare with the structure of Figure 40, can further reduce noise.In addition, in Figure 42 and Figure 43, in the whole zone of wind path, inserted dividing plate, but for example also can be only at the upstream side of heat exchanger 50 or only in the downstream of heat exchanger 50, with the part of baffle for separating wind path.In addition, same with embodiment 8, even if exist as shown in Figure 44 and the fan 20(of noise elimination mechanism be not set in Figure 44, fan 20B is not arranged the C of noise elimination mechanism) situation under, by reducing the rotating speed of this fan 20, also can reduce not arrange the noise in the zone of noise elimination mechanism, can access same soundproof effect.
In addition, the setting position of noise measuring microphone 161～163 needs only the upstream side at control loudspeaker 181～183.In addition, the setting position of control loudspeaker 181～183 is as long as in the downstream of noise measuring microphone 161～163 and detect the upstream side of microphone 191～193 at soundproof effect.In addition, in present embodiment 9, soundproof effect is detected on the roughly extended line of rotating shaft that microphone 191～193 is configured in fan 20A～20C, but so long as the downstream of control loudspeaker 181～183, the setting position that soundproof effect detects microphone 191～193 can be the optional position.In addition, in present embodiment 9, configure respectively 2～3 noise measuring microphones, control loudspeaker, soundproof effect detection microphone and signal processing apparatus, but be not limited to this quantity.
In addition, in present embodiment 9, field programmable gate array) large scale integrated circuit) or FPGA(Field Programmable Gate Array consist of Air Blast fan control module 172 by the CPU 131 in the control device 281, but also can pass through LSI(Large Scale Integration:: the hardware formation Air Blast fan control module 172 such as.In addition, the structure of Air Blast fan control module 172 also is not limited to structure shown in Figure 41.
In addition, in present embodiment 9, Air Blast fan control module 172 constitutes, improve the soundproof effect detection microphone 191 less with noise level, the fan 20A of 192 near distances, the rotating speed of 20C, and, the soundproof effect that reduction and noise level are larger detects the rotating speed of the fan 20B of microphone 193 near distances, but also can constitute a side who only carries out wherein.
Above, in the indoor set 100 of present embodiment 9, configure a plurality of fan 20A～20C, and the control device 281(that the rotating speed control individually fan 20A～20C is set more particularly is Air Blast fan control module 172).Air Blast fan control module 172 is controlled, so that in the mean value of the noise level that is detected by soundproof effect detection microphone 191～193, improve with the less soundproof effect of the noise level that detects and detect the rotating speed of the fan of microphone near distance, and reduce rotating speed with the fan of the larger soundproof effect detection microphone near distance of the noise level that detects.Therefore, (that is, noise level is less) regional soundproof effect that soundproof effect is higher further improves, and (being that noise level is larger) noise region that soundproof effect is lower reduces.Therefore, with use the indoor set of single fan in the noise elimination mechanism of same structure or do not carry out fan separately the indoor set of control compare, can further reduce noise.
In addition, Air Blast fan control module 172 control fan 20A～20C rotating speed separately, so that it is identical with the air quantity from blow-off outlet 3 outputs that has carried out in the situation of same rotational speed control in the situation of control separately to have carried out fan, thereby can reduces noise and do not make aeroperformance decline.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, can make each self-separation of noise of sending from fan 20A～20C, the A of noise elimination mechanism only reduces the noise that sends from fan 20A, the B of noise elimination mechanism only reduces the noise that sends from fan 20C, and the C of noise elimination mechanism only reduces the noise that sends from fan 20B.Therefore, in each zone, the crosstalk noise composition that is caused by the noise that outputs to neighboring region reduces.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, make wind path near pipe configuration, thereby can in one dimension, catch noise.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces, thereby compares with the structure of Figure 40, can access higher reducing noise effect.In addition, even if exist as shown in Figure 44 in the situation of the fan 20 that noise elimination mechanism is not set, by reducing the rotating speed of this fan 20, also can reduce not arrange the noise in the zone of noise elimination mechanism, can access same soundproof effect.
Embodiment 10.
Carry out for example can carrying out as described below fan and controlling separately in the situation of the independent control of fan at the soundproof effect that detects the microphone detection according to soundproof effect.In addition, in present embodiment 10, by with the difference of above-mentioned embodiment 8 or embodiment 9 centered by describe the label identical to the part mark identical with embodiment 8 or embodiment 9.
Figure 45 is the front view that the indoor set of embodiments of the present invention 10 is shown.
The indoor set 100 of present embodiment 10 is with the difference of the indoor set 100 of embodiment 9, also is provided with 173 holding wires that connect (carrying the holding wire of signal T1, T2, T3) from signal processing apparatus 201～203 to the Air Blast fan control module.Therefore, the structure of Air Blast fan control module 173 also is different from the structure of the Air Blast fan control module 172 of embodiment 9.Particularly, same with embodiment 9,173 signal S1, S2, the S3 that carry from signal processing apparatus 201～203 to the Air Blast fan control module are signals of detecting microphone 191～193 inputs from soundproof effect carries out signal after the digital translation via microphone amplifier 151 and by A/D converter 152.That is, signal S1, S2, S3 are the digital values that is detected the sound pressure level that microphone 191～193 detects by soundproof effect.In addition, signal T1, T2, the T3 that newly appends carries out signal after the digital translation from the signal of noise measuring microphone 161～163 input via microphone amplifier 151 and by A/D converter 152.That is, signal T1, T2, T3 are the digital values of the sound pressure level that detected by noise measuring microphone 161～163.
Then, the structure of Air Blast fan control module 173 described.
Figure 46 is the structure chart that the control device of embodiments of the present invention 10 is shown.Below exercises and the unit of explanation are undertaken by carry out the program of installing in the control device 281 that indoor set 100 has.Identical with the structure of narration in the embodiment 9, control device 281 mainly has for input from the input part 130 of the signal of the external input device such as remote controller 280, carry out the CPU 131 of computing and the memory 132 that is used for storage data or program according to the program of installing.In addition, CPU 131 has Air Blast fan control module 173.
Air Blast fan control module 173 has same rotational speed determining means 133, a plurality of coherence's arithmetic element 137(quantity and soundproof effect, and to detect microphone identical), rotating speed determining means 134B controlled separately by fan and a plurality of SW135(quantity is identical with fan 20).Same rotational speed determining means 133 is according to the operation information from remote controller 280 inputs, the rotating speed when determining to make fan 20A～20C all with identical rotary speed working.Be such as the cooling operation pattern, heat the operation mode information such as operation mode and dehumidifying operation mode from the operation information of remote controller 280 input, perhaps strong, in, the air quantity information such as weak.Coherence's arithmetic element 137 input detects digital value S1, S2, the S3 of the sound pressure level that microphone 191～193 detects by soundproof effect and digital value T1, T2, the T3 of the sound pressure level that detected by noise measuring microphone 161～163.The coherence of 137 couples of S1 of coherence's arithmetic element and T1, S2 and T2 and S3 and T3 carries out computing.
Fan is controlled separately rotating speed determining means 134B according to by the coherent value of coherence's arithmetic element 137 computings with from the rotary speed information of same rotational speed determining means 133 inputs, determines fan 20A～20C is carried out fan separately rotating speed when controlling separately.SW135 switches to the rotation control signal of the fan 20A～20C of motor driver 282A～282C conveying for example according to the signal from remote controller 280 inputs.That is, SW135 perhaps makes fan 20A～20C switch with various independent rotary speed workings (carrying out fan controls separately) to making fan 20A～20C all with identical rotary speed working (carrying out same rotational speed control).
Then, the action of indoor set 100 described.
Same with embodiment 9, when indoor set 100 action, the impeller of fan 20A～20C is rotated, the air in the upside suction chamber of fan 20A～20C, and carry air to fan 20A～20C downside, produce thus air-flow.Follow in this, produce operating sound (noise) near the blow-off outlet of fan 20A～20C, this sound downstream side is propagated.The air of being carried by fan 20A～20C passes through in wind path, and heat exchanger 50 is carried.For example, when carrying out cooling operation, from the cold-producing medium of pipe arrangement heat exchanger 50 transporting low temperatures that are connected with off-premises station (not shown).The air that heat exchanger 50 is carried is become cold air by the refrigerant cools that flows in heat exchanger 50, directly emit to indoor from blow-off outlet 3.
In addition, the action of the A～C of noise elimination mechanism is also identical with embodiment 9, carries out following action: export control sound close to zero mode and as a result of suppress soundproof effect and detect noise in the microphone 191～193 so that detect noise that microphone 191～193 detects by soundproof effect.
Usually, noise measuring microphone 161～163 is very large on the soundproof effect impact of active noise elimination with the coherent value that soundproof effect detects microphone 191～193.That is, if noise measuring microphone 161～163 is not high with the coherence that soundproof effect detects microphone 191～193, then can't expect soundproof effect.On the contrary, also can detect according to noise measuring microphone 161～163 and soundproof effect the coherent value prediction soundproof effect of microphone 191～193.
Therefore, the indoor set 100(of present embodiment 10 more particularly is the Air Blast fan control module 173 of control device 281) according to the coherent value of noise measuring microphone 161～163 with soundproof effect detection microphone 191～193, improve the rotating speed of the fan that is presumed to the higher zone of soundproof effect, and reduce the mode of the rotating speed of the fan be presumed to the lower zone of soundproof effect, the rotating speed of control fan 20A～20C.
Then, to the fan of the fan 20A～20C of present embodiment 10 separately control describe.
The operation information of being selected by remote controller 280 is imported into control device 281.As mentioned above, operation information is such as the cooling operation pattern, heats the operation mode information such as operation mode and dehumidifying operation mode.In addition, strong, in, the air quantity information such as weak too, as operation information 281 inputs from remote controller 280 to control device.The operation information that is imported into control device 281 is imported into same rotational speed determining means 133 via input part 130.Inputted the same rotational speed determining means 133 of operation information according to the operation information of inputting, the rotating speed when decision is carried out same rotational speed control to fan 20A～20C.
On the other hand, about detecting the digital value S1 of the sound pressure level that microphone 191～193 detects～S3 from signal processing apparatus 201～203 input by soundproof effect, with the digital value T1 of the sound pressure level that is detected by noise measuring microphone 161～163～T3, utilize coherence's arithmetic element 137 to obtain coherent value between each microphone.
The information of the coherent value that is calculated by coherence's arithmetic element 137 and the rotating speed (rotating speed during same rotational speed control) that determined by same rotational speed determining means 133 is imported into fan and controls separately rotating speed determining means 134B.Fan is controlled separately rotating speed determining means 134B according to these information, determines the rotating speed of each fan when carrying out fan controls separately.Particularly, detect the rotating speed of (relevance is higher) fan of microphone near distance with the soundproof effect that improves and coherent value is higher, and the lower soundproof effect of reduction and coherent value detects the mode of rotating speed of (relevance is higher) fan of microphone near distance, determines the rotating speed of fan.At this moment, also can be to become the mode of air quantity identical when control with same rotational speed to carry out air quantity that fan obtains in the situation of control separately, the rotating speed separately of decision fan 20A～20C.
For example, in the indoor set 100 of present embodiment 10, detect at noise measuring microphone 161 and soundproof effect that coherent value between the microphone 191 is 0.8, noise measuring microphone 162 and soundproof effect detect coherent value between the microphone 192 be 0.8 and noise measuring microphone 163 and soundproof effect detection microphone 193 between coherent value be in 0.5 the situation, fan is controlled separately rotating speed determining means 134B to improve the rotating speed of fan 20A, 20C, and reduce the mode of the rotating speed of fan 20B, determine the rotating speed of each fan.Air quantity and rotating speed have proportionate relationship, thereby for example in the situation of the such structure of Figure 45, the rotating speed of fan 20A and fan 20C is improved 10%, and the rotating speed of fan 20B is reduced by 20%, obtain thus identical air quantity.
In addition, the determining method of the rotating speed of above-mentioned fan 20A～20C only is an example.For example, detect at noise measuring microphone 161 and soundproof effect that coherent value between the microphone 191 is 0.8, noise measuring microphone 162 and soundproof effect detect coherent value between the microphone 192 be 0.7 and noise measuring microphone 163 and soundproof effect detection microphone 193 between coherent value be in 0.5 the situation, also can be, to improve the rotating speed of fan 20A, reduce the rotating speed of fan 20B, and keep the mode of the rotating speed of fan 20C, determine the rotating speed of each fan.Namely, also can be, detect the rotating speed of the fan 20A of microphone 191 near distances with the soundproof effect that improves and coherent value is the highest, the soundproof effect that reduction and coherent value are minimum detects the rotating speed of the fan 20B of microphone 193 near distances, and keep the mode of the rotating speed of the fan 20C that does not belong to above-mentioned situation, determine the rotating speed of each fan.
To carry out fan separately in the situation of the movement information signal of control (such as the signal of silent mode etc.) having inputted from remote controller 280, by switching SW135, switch to the separately rotation control signal of control of fan from the rotation control signal of same rotational speed control, and with the 20A～20C output from control device 281 to fan of this rotation control signal.Be imported into motor driver 282A～282C from the rotation control signal of control device 281 outputs, fan 20A～20C is controlled to be and the corresponding rotating speed of rotation control signal.
As mentioned above, in the situation that use active noise elimination, because noise measuring microphone 161～163 is different from the coherent value that soundproof effect detects microphone 191～193, the soundproof effect of expecting is different.That is, can be speculated as the higher soundproof effect detection microphone soundproof effect of coherent value higher, and it is lower to be speculated as the lower soundproof effect detection microphone soundproof effect of coherent value.Therefore, in the indoor set 100 of the present embodiment 10 with a plurality of fan 20A～20C, improve the rotating speed that detects the fan of microphone near distance with the higher soundproof effect of coherent value, and the rotating speed of the fan of the lower soundproof effect detection microphone near distance of reduction and coherent value.
Consequently, the indoor set 100 of present embodiment 10 advances a raising at the soundproof effect that is speculated as the higher zone of soundproof effect, reduces being speculated as the lower noise region of soundproof effect.Therefore, with the indoor set that uses single fan or do not carry out fan separately the indoor set of control compare, can reduce the noise that sends from blow-off outlet 3 integral body.In addition, the indoor set 100 of present embodiment 10 constant mode of air quantity when controlling with same rotational speed is controlled individually to the rotating speed of a plurality of fan 20A～20C, can suppress thus the reduction of aeroperformance.
In addition, such as Figure 42 of enforcement mode 9 and shown in Figure 43, the wind path of indoor set 100 is divided into a plurality of zones, can further improves soundproof effect thus.That is, can make the noise separation of sending from fan 20A～20C regional, the A of noise elimination mechanism only reduces the noise that sends from fan 20A, and the B of noise elimination mechanism only reduces the noise that sends from fan 20C, and the C of noise elimination mechanism only reduces the noise that sends from fan 20B.Therefore, noise measuring microphone 161～163 and soundproof effect detect the crosstalk noise composition that microphone 191～193 detects (noise that sends from the fan of the stream of being located at adjacency) and reduce.
In addition, wind path is close to pipe configuration, thereby can catch noise in one dimension.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces, thereby soundproof effect further improves.Therefore, be divided into a plurality of zones by the wind path with indoor set 100, compare with the structure of Figure 45, can further reduce noise.In addition, same with Figure 44 of embodiment 9, in the situation that has the fan that noise elimination mechanism is not set, reduce the rotating speed of this fan 20, the noise that the zone of noise elimination mechanism is not set thus reduces, and can access same soundproof effect.
In addition, the setting position of the noise measuring microphone 161～163 of present embodiment 10 needs only the upstream side at control loudspeaker 181～183.In addition, the setting position of control loudspeaker 181～183 is as long as in the downstream of noise measuring microphone 161～163 and detect the upstream side of microphone 191～193 at soundproof effect.In addition, in present embodiment 10, soundproof effect is detected on the roughly extended line of rotating shaft that microphone 191～193 is configured in fan 20A～20C, but as long as in the downstream of control loudspeaker 181～183, the setting position that soundproof effect detects microphone 191～193 can be the optional position.In addition, in present embodiment 10, configured respectively 3 noise measuring microphones, control loudspeaker, soundproof effect detection microphone and signal processing apparatus, but be not limited to this quantity.
In addition, in present embodiment 10, field programmable gate array) large scale integrated circuit) or FPGA(Field Programmable Gate Array consist of Air Blast fan control module 173 by the CPU 131 in the control device 281, but also can pass through LSI(Large Scale Integration:: the hardware formation Air Blast fan control module 173 such as.In addition, the structure of Air Blast fan control module 173 also is not limited to structure shown in Figure 46.
In addition, in present embodiment 10, Air Blast fan control module 173 constitutes, improve the soundproof effect detection microphone 191 larger with coherent value, the fan 20A of 192 near distances, the rotating speed of 20C, and, the soundproof effect that reduction and coherent value are less detects the rotating speed of the fan 20B of microphone 193 near distances, but also can constitute a side who only carries out wherein.
Above, in the indoor set 100 of present embodiment 10, configure a plurality of fan 20A～20C, and the control device 281(that the rotating speed control individually fan 20A～20C is set more particularly is Air Blast fan control module 173).Air Blast fan control module 173 calculating noises detect the coherent value of microphone 161～163 and soundproof effect detection microphone 191～193, and control, with improve with and the higher soundproof effect of the coherent value of noise measuring microphone detect the rotating speed of the fan of microphone near distance, and carry out rotating speed control, with reduce with and the lower soundproof effect of the coherent value of noise measuring microphone detect the rotating speed of the fan of microphone near distance.Consequently, can expect that the regional soundproof effect of higher soundproof effect further improves, can not expect that the noise region of soundproof effect reduces.Therefore, with use the indoor set of single fan in the noise elimination mechanism of same structure or do not carry out fan separately the indoor set of control compare, can further reduce noise.
In addition, Air Blast fan control module 173 control fan 20A～20C rotating speed separately, so that it is identical with the air quantity from blow-off outlet 3 outputs that has carried out in the situation of same rotational speed control in the situation of control separately to have carried out fan, thereby can reduces noise and do not make aeroperformance decline.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, can make each self-separation of noise of sending from fan 20A～20C, the A of noise elimination mechanism only reduces the noise that sends from fan 20A, the B of noise elimination mechanism only reduces the noise that sends from fan 20C, and the C of noise elimination mechanism only reduces the noise that sends from fan 20B.Therefore, in each zone, the crosstalk noise composition that is caused by the noise that outputs to neighboring region reduces.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, make wind path near pipe configuration, thereby can in one dimension, catch noise.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces, thereby compares with the structure of Figure 45, can access higher reducing noise effect.In addition, even if in the situation that has the fan 20 that noise elimination mechanism is not set, by reducing the rotating speed of this fan 20, also can reduce not arrange the noise in the zone of noise elimination mechanism, can access same soundproof effect.
In addition, in the indoor set 100 of present embodiment 10, carry out the control of rotating speed according to the coherent value of noise measuring microphone and soundproof effect detection microphone.Can infer theoretic soundproof effect according to coherent value, thereby detect the coherent value of microphone according to each soundproof effect, can realize that more optimize, meticulous rotation speed of the fan control.Therefore, the indoor set 100 of present embodiment 10 is compared with the structure of embodiment 9 with embodiment 8, can access higher soundproof effect.
Embodiment 11.
Be used for implementing noise elimination of the present invention mechanism and be not limited to the noise elimination mechanism shown in embodiment 8～embodiment 10.Even if for example use and above-mentioned different noise elimination mechanism, also can access the air conditioner that has with embodiment 8～embodiment 10 effect same.In addition, in present embodiment 11, the example that uses the noise elimination mechanism different from the air conditioner of embodiment 8 is described.In addition, in present embodiment 11, by with the difference of above-mentioned embodiment 8～embodiment 10 centered by describe the label identical to the part mark identical with embodiment 8～embodiment 10.
Figure 47 is the front view that the indoor set of embodiments of the present invention 11 is shown.
The indoor set 100 of present embodiment 11 is structures of noise elimination mechanism with the difference of the indoor set 100 of embodiment 8.Particularly, in the A of noise elimination mechanism of the indoor set 100 of embodiment 8, in order to carry out active noise elimination, two microphones (noise measuring microphone 161 and soundproof effect detect microphone 191) have been used.On the other hand, the D of noise elimination mechanism that uses as the noise elimination mechanism corresponding with the A of noise elimination mechanism and in the indoor set 100 of present embodiment 11 is replaced as 1 microphone (noise/soundproof effect detects microphone 211) with two microphones (noise measuring microphone 161 and soundproof effect detect microphone 191) of the A of noise elimination mechanism.Equally, in the B of noise elimination mechanism of the indoor set 100 of embodiment 8, in order to carry out active noise elimination, two microphones (noise measuring microphone 162 and soundproof effect detect microphone 192) have been used.On the other hand, the E of noise elimination mechanism that uses as the noise elimination mechanism corresponding with the B of noise elimination mechanism and in the indoor set 100 of present embodiment 11 is replaced as 1 microphone (noise/soundproof effect detects microphone 212) with two microphones (noise measuring microphone 162 and soundproof effect detect microphone 192) of the B of noise elimination mechanism.In addition, correspondingly the method for signal processing is different therewith, thereby in the indoor set 100 of present embodiment 11, signalization treating apparatus 204,205 replaces signal processing apparatus 201,202.In addition, the structure of explanation is identical in signal processing apparatus 204,205 structure and the embodiment 2.
Then, the action of indoor set 100 described.
Identical with embodiment 8, when indoor set 100 action, the impeller of fan 20A～20C is rotated, the air in the upside suction chamber of fan 20A～20C, and carry air to fan 20A～20C downside, produce thus air-flow.Follow in this, produce operating sound (noise) near the blow-off outlet of fan 20A～20C, this sound downstream side is propagated.The air of being carried by fan 20A～20C passes through in wind path, and heat exchanger 50 is carried.For example, when carrying out cooling operation, from the cold-producing medium of pipe arrangement heat exchanger 50 transporting low temperatures that are connected with off-premises station (not shown).The air that heat exchanger 50 is carried is become cold air by the refrigerant cools that flows in heat exchanger 50, directly emit to indoor from blow-off outlet 3.
In addition, inhibition method and the embodiment 2 of the operating sound of indoor set 100 are identical, move, so that export control sound by noise/soundproof effect detection microphone 211,212 noises that detect close to zero mode, as a result of suppressed the noise in noise/soundproof effect detection microphone 211,212.
As in explanation in the embodiment 8 like that, in active sound reduction method, with detect microphone 211 at noise/soundproof effect, 212 setting position (control point) becomes and the mode of noise opposite phase, controls sound from control loudspeaker 181,182 outputs.Therefore, noise/soundproof effect detect microphone 211,212 near, soundproof effect improves, but the phase generate variation of control sound when leave this.Therefore, detect microphone 211,212 position leaving noise/soundproof effect, noise increases with the phase deviation of control sound, causes soundproof effect to reduce.
In addition, the fan of the fan 20A～20C of present embodiment 11 separately control be the control identical with the Air Blast fan control module 171 of explanation in the embodiment 8.
Like this, in the indoor set 100 with a plurality of fan 20A～20C, improve with noise/soundproof effect and detect microphone 211, the fan 20A of 212 near distances, the rotating speed of 20C, and reduction and noise/soundproof effect detects the rotating speed of the fan 20B of microphone 211,212 distance, thus, can increase to the higher noise of the soundproof effect of initiatively eliminating the noise/soundproof effect and detect near the noise the microphone 211,212, and the soundproof effect that reduces initiatively to eliminate the noise reduce detect the noise in microphone 211,212 zone away from noise/soundproof effect.
Namely, in the situation that use active noise elimination, as mentioned above, be positioned at the noise at the control point of noise control/soundproof effect detect microphone 211,212 with and the soundproof effect of periphery improve, but in the position of leaving the control point, increase from the control sound of control loudspeaker 181,182 outputs and the phase deviation of noise, cause soundproof effect to reduce.Yet, in present embodiment 11, indoor set 100 is for having the structure of a plurality of fan 20A～20C, thereby can make the fan that detects the higher noise of fan 20A, the 20C(output soundproof effect of microphone 211,212 near distances with noise/soundproof effect) rotating speed improve, and reduction and noise/soundproof effect fan 20B(of detecting microphone 211,212 distance exports the fan of the lower noise of soundproof effect) rotating speed.
Consequently, the indoor set 100 of present embodiment 11 soundproof effect in the higher zone of soundproof effect further improves, noise reduces in the lower zone of soundproof effect, thereby with the indoor set that uses single fan or do not carry out fan separately the indoor set of control compare, can reduce the noise that sends from blow-off outlet 3 integral body.In addition, the indoor set 100 of present embodiment 11 makes the constant mode of air quantity control individually the rotating speed of a plurality of fan 20A～20C when controlling with same rotational speed, can suppress thus the reduction of aeroperformance.
In addition, such as Figure 48 and shown in Figure 49, be divided into a plurality of zones by the wind path with indoor set 100, can further improve soundproof effect.
Figure 48 is another routine front view that the indoor set of embodiments of the present invention 11 is shown.In addition, Figure 49 is the left side view of indoor set shown in Figure 48.In addition, Figure 49 illustrates through the sidewall of the housing 1 of indoor set 100.Figure 48 and indoor set 100 usefulness dividing plates 90,90a shown in Figure 49 are cut apart wind path, are divided into thus the zone that air that the zone zone that air that fan 20A blows out passes through, air that fan 20B blows out passed through and fan 20C blow out passes through.And the control loudspeaker 181 of the D of noise elimination mechanism and noise/soundproof effect detect microphone 211 and are configured in the zone that air that fan 20A blows out passes through.In addition, the control loudspeaker 182 of the E of noise elimination mechanism and noise/soundproof effect detect microphone 212 and are configured in the zone that air that fan 20C blows out passes through.
By such formation indoor set 100, can be with the noise separation sent from fan 20A～20C regional, the D of noise elimination mechanism only reduces the noise that sends from fan 20A, and the E of noise elimination mechanism only reduces the noise that sends from fan 20C.Therefore, can prevent that noise/soundproof effect from detecting microphone 211,212 and detecting the noise that sends from fan 20B, thereby noise/soundproof effect detects microphone 211,212 crosstalk noise composition reduces.
In addition, wind path is close to pipe configuration, thereby can catch noise in one dimension.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces, thereby soundproof effect further improves.Therefore, by as Figure 48 and Figure 49, consisting of indoor set 100, compare with the structure of Figure 47, can further reduce noise.In addition, in Figure 48 and Figure 49, in the whole zone of wind path, inserted dividing plate, but for example also can be only at the upstream side of heat exchanger 50 or only in the downstream of heat exchanger 50, with the part of baffle for separating wind path.
In addition, in present embodiment 11, noise/soundproof effect is detected microphone 211,212 be arranged on control loudspeaker 181,182 downstream, detect microphone 211,212 but also can noise/soundproof effect be set at control loudspeaker 181,182 upstream side.In addition, in present embodiment 11, two control loudspeakers, noise/soundproof effect detection microphone and signal processing apparatus are set respectively, but are not limited to this quantity.
In addition, in present embodiment 11, field programmable gate array) large scale integrated circuit) or FPGA(Field Programmable Gate Array consist of Air Blast fan control module 171 by the CPU 131 in the control device 281, but also can pass through LSI(Large Scale Integration:: the hardware formation Air Blast fan control module 171 such as.In addition, embodiment 8 is same, and the structure of Air Blast fan control module 171 also is not limited to structure shown in Figure 37.
In addition, in present embodiment 11, Air Blast fan control module 171 constitutes, and improves with noise/soundproof effect and detects microphone 211, the fan 20A of 212 near distances, the rotating speed of 20C, and reduce the rotating speed of the fan 20B of distance, but also can constitute a side who only carries out wherein.
Above, in the indoor set 100 of present embodiment 11, configure a plurality of fan 20A～20C, and the control device 281(that the rotating speed control individually fan 20A～20C is set more particularly is Air Blast fan control module 171).Air Blast fan control module 171 is controlled, be noise/soundproof effect fan 20A of detecting near the zones air-supply the microphone 211,212, the rotating speed of 20C to improve to the higher zone of soundproof effect, and carry out rotating speed control, to reduce to the zone of soundproof effect step-down namely the rotating speed of fan 20B that detects the zone air-supply of microphone 211,212 distance with noise/soundproof effect.Therefore, the regional soundproof effect that soundproof effect is higher further improves, and the noise region that soundproof effect is lower reduces.Therefore, with the indoor set that in the noise elimination mechanism of same structure, uses single fan or do not carry out fan separately the indoor set of control compare, can further reduce noise.
In addition, Air Blast fan control module 171 control fan 20A～20C rotating speed separately, so that it is identical with the air quantity from blow-off outlet 3 outputs that has carried out in the situation of same rotational speed control in the situation of control separately to have carried out fan, thereby can reduces noise and do not make aeroperformance decline.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, can make each self-separation of noise of sending from fan 20A～20C, the D of noise elimination mechanism only reduces the noise that sends from fan 20A, and the E of noise elimination mechanism only reduces the noise that sends from fan 20C.Therefore, the crosstalk noise composition that the noise that sends from fan 20B causes reduces.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, make wind path near pipe configuration, thereby can in one dimension, catch noise.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces.In addition, reduce the rotating speed of the fan 20B that noise elimination mechanism is not set, the noise that the zone of noise elimination mechanism is not set thus reduces, and compares with the structure of Figure 47, can access higher reducing noise effect.
In addition, in present embodiment 11, with noise measuring microphone 161,162 and soundproof effect detect microphone 191,192 and be integrated into noise/soundproof effect and detect microphone 211,212, thereby can reduce the quantity of microphone, the part number can be cut down, thereby cost can be further reduced.
Embodiment 12.
Can certainly in the indoor set shown in the embodiment 9, use in the noise elimination mechanism shown in the embodiment 11.In addition, in present embodiment 12, by with the difference of above-mentioned embodiment 8～embodiment 11 centered by describe the label identical to the part mark identical with embodiment 8～embodiment 11.
Figure 50 is the front view that the indoor set of embodiments of the present invention 12 is shown.
The indoor set 100 of present embodiment 12 is with the difference of the indoor set 100 of embodiment 11, is provided with the F(of noise elimination mechanism control loudspeaker 183, noise/soundproof effect detection microphone 213 and signal processing apparatus 206).The structure of signal processing apparatus 206 and signal processing apparatus 204,205 identical.
In addition, same with embodiment 9, also be provided with 172 holding wires that connect (carrying the holding wire of signal S1, S2, S3) from signal processing apparatus 204～206 to the Air Blast fan control module, these are also different from the indoor set 100 of embodiment 11.To be signals of detecting microphone 211～213 inputs from noise/soundproof effect carry out signal after the digital translation via microphone amplifier 151 and by A/D converter 152 to 172 signal S1, S2, the S3 that carry from signal processing apparatus 204～206 to the Air Blast fan control module.That is, signal S1, S2, S3 are the digital values by noise/sound pressure level that soundproof effect detection microphone 211～213 detects.
The structure of Air Blast fan control module 172 is identical with the structure of explanation in embodiment 9, is structure shown in Figure 41.Air Blast fan control module 172 has same rotational speed determining means 133, a plurality of equalizations unit 136(quantity and soundproof effect, and to detect microphone identical), rotating speed determining means 134A controlled separately by fan and a plurality of SW135(quantity is identical with fan 20).Same rotational speed determining means 133 is according to the operation information of inputting from remote controller 280, the rotating speed when determining fan 20A～20C is all worked with same rotational speed.Be such as the cooling operation pattern, heat the operation mode information such as operation mode and dehumidifying operation mode from the operation information of remote controller 280 input, perhaps strong, in, weak etc. air quantity information.Equalization unit 136 is used for inputting digital value S1, S2, the S3 of the sound pressure level that is detected by soundproof effect detection microphone 191～193, and the signal of these S1, S2, S3 is averaged according to certain hour.
Fan is controlled separately rotating speed determining means 134A according to by each signal of S1, S2 after equalization unit 136 equalizations, S3 with from the rotary speed information of same rotational speed determining means 133 inputs, determines fan 20A～20C is carried out the every speed of fan when controlling separately.SW135 switches to the rotation control signal of the fan 20A～20C of motor driver 282A～282C conveying for example according to the signal from remote controller 280 inputs.That is, SW135 is used for switching to makes fan 20A～20C all with identical rotary speed working (carrying out same rotational speed control), perhaps makes fan 20A～20C separately with rotary speed working (carrying out fan controls separately) independently.
Then, the action of indoor set 100 described.
With the difference of embodiment 11 only be the action of Air Blast fan control module 172.In addition, the action of Air Blast fan control module 172 with in embodiment 9 explanation identical.That is, equalization unit 136 is according to during certain the digital value S1 that detected the sound pressure level that microphone 211～213 detects by noise/soundproof effect～S3 being averaged.The rotating speed that fan is controlled separately the sound pressure level value after rotating speed determining means 134A averages out according to these and determined by same rotational speed determining means 133 determines the rotating speed of each fan when carrying out fan controls separately.Particularly, determine as follows the rotating speed of fan, improve with average out after the less soundproof effect of sound pressure level value detect the rotating speed of (relevance is higher) fan of microphone near distance, and reduce with average out after the rotating speed of (relevance is higher) fan of the larger soundproof effect detection microphone near distance of sound pressure level value.At this moment, also can be to become the mode of air quantity identical when control with same rotational speed to carry out air quantity that fan obtains in the situation of control separately, the rotating speed separately of decision fan 20A～20C.
For example, in the indoor set 100 of present embodiment 12,45dB at the mean value that is detected the noise level that microphone 211 detects by noise/soundproof effect, mean value by noise/noise level that soundproof effect detection microphone 212 detects is 45dB, and the mean value by noise/noise level that soundproof effect detection microphone 213 detects is in the situation of 50dB, fan is controlled separately rotating speed determining means 134A with the rotating speed of raising fan 20A, 20C, and the mode of the rotating speed of reduction fan 20B determines the rotating speed of each fan.Air quantity and rotating speed have proportionate relationship, thereby for example in the situation of the such structure of Figure 50, improve 10% by the rotating speed with fan 20A and fan 20C, and the rotating speed of fan 20B is reduced by 20% and obtain identical air quantity.
In addition, the determining method of the rotating speed of above-mentioned fan 20A～20C only is an example.For example, 45dB at the mean value that is detected the noise level that microphone 211 detects by noise/soundproof effect, mean value by noise/noise level that soundproof effect detection microphone 212 detects is 47dB, and the mean value by noise/noise level that soundproof effect detection microphone 213 detects is in the situation of 50dB, also can be to improve the rotating speed of fan 20A, to reduce the rotating speed of fan 20B, and keep the mode of the rotating speed of fan 20C, determine the rotating speed of each fan.Namely, also can be, detect the rotating speed of the fan 20A of microphone 211 near distances to improve with the noise of the noise level minimum that detects/soundproof effect, the noise of the noise level maximum that reduces and detect/soundproof effect detects the rotating speed of the fan 20B of microphone 213 near distances, and keep the mode of the rotating speed of the fan 20C that does not belong to above situation, determine the rotating speed of each fan.
To carry out fan separately in the situation of the movement information signal of control (such as the signal of silent mode etc.) having inputted from remote controller 280, control individually the rotating speed of each fan.Namely, to carry out fan separately in the situation of the movement information signal of control (such as the signal of silent mode etc.) having inputted from remote controller 280, by switching SW135, switch to the separately rotation control signal of control of fan from the rotation control signal of same rotational speed control, and with the 20A～20C output from control device 281 to fan of this rotation control signal.Be imported into motor driver 282A～282C from the rotation control signal of control device 281 outputs, fan 20A～20C is controlled to be and the corresponding rotating speed of rotation control signal.
At this, in the situation of the indoor set 100 of present embodiment 12, same with embodiment 9, because the size from the crosstalk noise composition of the fan of adjacency, compare with near the zone noise/soundproof effect detects microphone 213, near the regional soundproof effect that noise/soundproof effect detects the microphone 211,212 improves.That is, compare with near the zone noise/soundproof effect detects microphone 213, noise/soundproof effect detects the noise level that detects near the zone the microphone 211,212 to be reduced.On the other hand, noise/soundproof effect detects near the zone the microphone 213, and soundproof effect reduces.Therefore, in the indoor set 100 of the present embodiment 12 with a plurality of fan 20A～20C, in the mean value by noise/noise level value that soundproof effect detection microphone 211～213 detects, improve the noise less with the noise level mean value that detects/soundproof effect and detect microphone 211, the fan 20A of 212 near distances, the rotating speed of 20C, reduce the rotating speed that the noise larger with the noise level mean value that detects/soundproof effect detects the fan 20B of microphone 213 near distances.
Consequently, the indoor set 100 of present embodiment 12 further improves at the higher regional soundproof effect of soundproof effect, the noise region lower at soundproof effect reduces, thereby with the indoor set that uses single fan or do not carry out fan separately the indoor set of control compare, can reduce the noise that sends from blow-off outlet 3 integral body.In addition, the indoor set 100 of present embodiment 12 constant mode of air quantity when controlling with same rotational speed is controlled individually to the rotating speed of a plurality of fan 20A～20C, can suppress thus the reduction of aeroperformance.
In addition, shown in Figure 51 and Figure 52, the wind path of indoor set 100 is divided into a plurality of zones, can further improves soundproof effect thus.
Figure 51 is another routine front view that the indoor set of embodiments of the present invention 12 is shown.In addition, Figure 52 is the left side view of the indoor set shown in Figure 51.In addition, Figure 52 illustrates through the sidewall of the housing 1 of indoor set 100.Indoor set 100 usefulness dividing plates 90 shown in Figure 51 and Figure 52,90a are cut apart wind path, are divided into thus the zone that air that zone that air that air that fan 20A blows out blows out by zone, fan 20B passes through and fan 20C blow out passes through.And the control loudspeaker 181 of the D of noise elimination mechanism and noise/soundproof effect detect microphone 211 and are configured in the zone that air that fan 20A blows out passes through.In addition, the control loudspeaker 182 of the E of noise elimination mechanism and noise/soundproof effect detect microphone 212 and are configured in the zone that air that fan 20C blows out passes through.In addition, the control loudspeaker 183 of the F of noise elimination mechanism and noise/soundproof effect detect microphone 213 and are configured in the zone that air that fan 20B blows out passes through.
By such formation indoor set 100, can be with the noise separation sent from fan 20A～20C regional, the D of noise elimination mechanism only reduces the noise that sends from fan 20A, and the E of noise elimination mechanism only reduces the noise that sends from fan 20C, and the F of noise elimination mechanism only reduces the noise that sends from fan 20B.Therefore, noise/soundproof effect detects the crosstalk noise composition that microphone 211～213 detects (noise that sends from the fan of the stream of being located at adjacency) and reduces.
In addition, wind path is close to pipe configuration, thereby can catch noise in one dimension.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces, thereby soundproof effect further improves.Therefore, by as Figure 51 and Figure 52, consisting of indoor set 100, compare with the structure of Figure 50, can further reduce noise.In addition, in Figure 51 and Figure 52, in the whole zone of wind path, inserted dividing plate, but for example also can be only at the upstream side of heat exchanger 50 or only in the downstream of heat exchanger 50, with the part of baffle for separating wind path.In addition, same with embodiment 11, even if exist as shown in Figure 53 in the situation of the fan 20 that noise elimination mechanism is not set, by reducing the rotating speed of this fan 20, also can reduce not arrange the noise in the zone of noise elimination mechanism, can access same soundproof effect.
In addition, in present embodiment 12, noise/soundproof effect is detected microphone 211～213 be arranged on the downstream of control loudspeaker 181～183, detect microphone 211～213 but noise/soundproof effect also can be set at the upstream side of control loudspeaker 181～183.In addition, in present embodiment 12, configure respectively 2～3 control loudspeakers, noise/soundproof effect detection microphone and signal processing apparatus, but be not limited to this quantity.
In addition, in present embodiment 12, field programmable gate array) large scale integrated circuit) or FPGA(Field Programmable Gate Array consist of Air Blast fan control module 172 by the CPU131 in the control device 281, but also can pass through LSI(Large Scale Integration:: the hardware formation Air Blast fan control module 172 such as.In addition, same with embodiment 9, the structure of Air Blast fan control module 172 also is not limited to structure shown in Figure 41.
In addition, in present embodiment 12, Air Blast fan control module 172 constitutes, improve the rotating speed that the noise less with noise level/soundproof effect detects the fan of microphone near distance, and, reduce the rotating speed that the noise larger with noise level/soundproof effect detects the fan of microphone near distance, but also can constitute a side who only carries out wherein.
Above, in the indoor set 100 of present embodiment 12, configure a plurality of fan 20A～20C, the control device 281(that the rotating speed of fan 20A～20C is controlled individually is set more particularly is Air Blast fan control module 172).Air Blast fan control module 172 is controlled, so that in the mean value by noise/noise level that soundproof effect detection microphone 211～213 detects, improve the noise less with the noise level that detects/soundproof effect and detect the rotating speed of the fan of microphone near distance, and reduce the rotating speed of the fan of the noise larger with the noise level that detects/soundproof effect detection microphone near distance.Therefore, (that is, noise level is less) regional soundproof effect that soundproof effect is higher further improves, and (being that noise level is larger) noise region that soundproof effect is lower reduces.Therefore, with use the indoor set of single fan in the noise elimination mechanism of same structure or do not carry out fan separately the indoor set of control compare, can further reduce noise.
In addition, the rotating speed of Air Blast fan control module 172 control fan 20A～20C, so that it is identical with the air quantity from blow-off outlet 3 outputs that has carried out in the situation of same rotational speed control in the situation of control separately to have carried out fan, thereby can reduces noise and do not make aeroperformance decline.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, can make each self-separation of noise of sending from fan 20A～20C, the D of noise elimination mechanism only reduces the noise that sends from fan 20A, the E of noise elimination mechanism only reduces the noise that sends from fan 20C, and the F of noise elimination mechanism only reduces the noise that sends from fan 20B.Therefore, in each zone, the crosstalk noise composition that is caused by the noise in the zone that outputs to adjacency reduces.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, make wind path near pipe configuration, thereby can in one dimension, catch noise.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces.Therefore, the soundproof effect that noise/soundproof effect detects in the microphone 211～213 improves, and compares with the structure of Figure 51, can further reduce noise.In addition, even if exist in the situation of the fan 20 that noise elimination mechanism is not set, by reducing the rotating speed of this fan 20, also can reduce not arrange the noise in the zone of noise elimination mechanism, can access same soundproof effect.
In addition, in present embodiment 12, noise measuring microphone 161～163 and soundproof effect are detected microphone 191～193 be integrated into noise/soundproof effect detection microphone 211～213, thereby can reduce the quantity of microphone, can cut down the part number, and further reduce cost.
Embodiment 13.
In embodiment 8～embodiment 12, output and soundproof effect are detected the fan that microphone or noise/soundproof effect detect the higher noise of microphone relevance (that is, the output soundproof effect detects microphone or noise/soundproof effect and detects the fan that microphone is easy to bring into play the noise of soundproof effect) to be made as with soundproof effect and to detect the fan that microphone or noise/soundproof effect detect the microphone near distance.Be not limited to this, also output and soundproof effect can be detected the fan that microphone or noise/soundproof effect detect the higher noise of microphone relevance (that is, the output soundproof effect detects microphone or noise/soundproof effect and detects the fan that microphone is easy to bring into play the noise of soundproof effect) and be made as following such fan.In addition, in present embodiment 13, describe as an example of the air conditioner of embodiment 8 example.In addition, in present embodiment 13, by with the difference of above-mentioned embodiment 8～embodiment 12 centered by describe the label identical to the part mark identical with embodiment 8～embodiment 12.
As mentioned above, the basic structure of the indoor set 100 of present embodiment 13 is identical with Figure 35 of explanation in embodiment 8.The indoor set 100 of present embodiment 13 is with the difference of the indoor set 100 of embodiment 8, is input to the Air Blast fan information difference of the memory 132 of control device 281.That is, the indoor set 100 of present embodiment 13 is with the difference of the indoor set 100 of embodiment 8, controls separately the Air Blast fan information difference of rotating speed determining means 134 inputs from memory 132 to fan.
In addition, in embodiment 8, control loudspeaker 181, the 182 detailed structures that arrange to indoor set 100 sides are not described, in present embodiment 13, as described below control loudspeaker 181,182 is arranged on indoor set 100 sides.
Because control loudspeaker 181,182 has certain thickness, if thereby be arranged on front or the back side of indoor set 100, then can stop up wind path, cause aeroperformance to descend.Therefore, in present embodiment 13, configuration control loudspeaker 181,182 in the mechanical box of the both sides face of being located at housing 1 (taking in the box of control substrate etc., not shown).By such configuration control loudspeaker 181,182, can prevent that control loudspeaker 181,182 from exposing in wind path.
More particularly, in embodiment 8, will detect the identification number of fan 20 of microphone 191,192 near distances as Air Blast fan information with soundproof effect.On the other hand, in present embodiment 13, the identification number of the fan 20 that will arrange at the two ends of the housing 1 of indoor set 100 is as Air Blast fan information.That is, as shown in Figure 35, the Air Blast fan information in the present embodiment 13 is the identification number of fan 20A and fan 20C.
The action of indoor set 100 is identical with the action of explanation in embodiment 8.Therefore, independent control describes to the fan of fan 20A～20C below.
Identical with embodiment 8, the fan of Air Blast fan control module 171 is controlled separately rotating speed determining means 134 according to the rotary speed information that is determined by same rotational speed determining means 133 and the Air Blast fan information of reading from memory 132, determines the rotating speed of each fan 20 when carrying out fan controls separately.Particularly, fan is controlled separately rotating speed determining means 134 raising identification numbers and is imported into the fan 20A of memory 132, the rotating speed of 20C, and reduces the rotating speed that identification number is not imported into the fan 20B of memory 132.Its result, fan is controlled separately rotating speed determining means 134 and is improved the fan 20A that arranges at the two ends of the housing 1 of indoor set 100, the rotating speed of 20C, and is reduced in the rotating speed of the fan 20B that arranges beyond the two ends of housing 1 of indoor set 100.In addition, at this moment, also can be to become the mode of air quantity identical when control with same rotational speed to have carried out air quantity that fan obtains in the situation of control separately, decision fan 20A～20C rotating speed separately.
To carry out fan separately in the situation of the movement information signal of control (such as the signal of silent mode etc.) having inputted from remote controller 280, by switching SW135, switch to the separately rotation control signal of control of fan from the rotation control signal of same rotational speed control, and with the 20A～20C output from control device 281 to fan of this rotation control signal.Be imported into motor driver 282A～282C from the rotation control signal of control device 281 outputs, fan 20A～20C is controlled to be and the corresponding rotating speed of rotation control signal.
In the situation of the fan 20A at two ends, noise that 20C sends being carried out active noise elimination, carry out in the situation of active noise elimination with the noise that the fan 20B beyond the two ends is sent, the crosstalk noise composition when detecting the noise of these fans is different.This is because in the situation that detects the noise that sends from fan 20B, also be included in as the crosstalk noise composition from the fan 20A of adjacency, the noise that 20C sends.Therefore, in present embodiment 13, indoor set 100 is made as the structure with a plurality of fan 20A～20C, the fan 20A at the raising two ends that the crosstalk noise composition is less when noise measuring, the rotating speed of 20C, and the rotating speed of crosstalk noise composition fan 20B larger, beyond the two ends when being reduced in noise measuring.
Consequently, the indoor set 100 of present embodiment 13 further improves at the higher regional soundproof effect of soundproof effect, the noise region lower at soundproof effect reduces, thereby with the indoor set that uses single fan or do not carry out fan separately the indoor set of control compare, can reduce the noise that sends from blow-off outlet 3 integral body.In addition, the indoor set 100 of present embodiment 13 constant mode of air quantity when controlling with same rotational speed is controlled individually to the rotating speed of a plurality of fan 20A～20C, can suppress thus the reduction of aeroperformance.
In addition, in present embodiment 13, control loudspeaker 181,182 is arranged on the two sides of indoor set 100, so that control loudspeaker 181,182 does not expose in wind path.Therefore, can prevent to prevent the decline of aeroperformance owing to control loudspeaker 181,182 is exposed to the pressure loss that produces in the wind path.
In addition, same with Figure 38 and the indoor set shown in Figure 39 100 of embodiment 8 in the indoor set 100 of present embodiment 13, the wind path of indoor set 100 is divided into a plurality of zones, also can further improve soundproof effect thus.
Namely, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, can make the noise separation of sending from fan 20A～20C regional, the A of noise elimination mechanism only reduces the noise that sends from fan 20A, and the B of noise elimination mechanism only reduces the noise that sends from fan 20C.Therefore, can prevent noise measuring microphone 161,162 and soundproof effect detect microphone 191,192 and detect the noise that sends from fan 20B, thereby noise measuring microphone 161,162 and soundproof effect detects microphone 191,192 crosstalk noise composition reduces.
In addition, wind path is close to pipe configuration, thereby can catch noise in one dimension.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces, thereby soundproof effect further improves.On the other hand, reduce the rotating speed of the fan 20B that noise elimination mechanism is not set, the noise that the zone of noise elimination mechanism is not set thus reduces.Therefore, in the indoor set 100 of present embodiment 13, be divided into a plurality of zones by the wind path with indoor set 100, compare with the structure of Figure 35, can further reduce noise.In addition, need to can not be at the whole region division dividing plate of wind path, for example only at the upstream side of heat exchanger 50 or only in the downstream of heat exchanger 50, with the part of baffle for separating wind path yet.
In addition, in present embodiment 13, noise measuring microphone 161,162 is arranged on the two sides of indoor set 100, but so long as control loudspeaker 181,182 upstream side, noise measuring microphone 161,162 setting position can be the optional positions.In addition, in present embodiment 13, soundproof effect is detected on the roughly extended line of rotating shaft that microphone 191,192 is configured in fan 20A, 20C, but so long as control loudspeaker 181,182 downstream, soundproof effect detects microphone 191,192 setting position can be the optional position.In addition, in present embodiment 13, configure respectively two noise measuring microphones, control loudspeaker, soundproof effect detection microphone and signal processing apparatus, but be not limited to this quantity.
In addition, in present embodiment 13, field programmable gate array) large scale integrated circuit) or FPGA(Field Programmable Gate Array consist of Air Blast fan control module 171 by the CPU 131 in the control device 281, but also can pass through LSI(Large Scale Integration:: the hardware formation Air Blast fan control module 171 such as.In addition, the structure of Air Blast fan control module 171 also is not limited to structure shown in Figure 37.
In addition, in present embodiment 13, Air Blast fan control module 171 constitutes, and improves the fan 20A at the two ends of indoor set 100, the rotating speed of 20C, and, reduce the rotating speed of two ends fan 20B in addition, but also can constitute a side who only carries out wherein.
Above, in the indoor set 100 of present embodiment 13, configure a plurality of fan 20A～20C, the Air Blast fan control module 171 that the rotating speed of fan 20A～20C is controlled individually is set.Air Blast fan control module 171 is controlled, and improving the fan 20A that arranges at the two ends of indoor set 100, the rotating speed of 20C, and carries out rotating speed control, with the rotating speed of the fan 20B that arranges beyond the two ends that are reduced in indoor set 100.Therefore, further improve at the crosstalk noise composition regional soundproof effect less and that soundproof effect is higher from the fan of adjacency, the large and lower noise region of soundproof effect reduces at the crosstalk noise composition.Therefore, with the indoor set that in the noise elimination mechanism of identical structure, uses single fan or do not carry out fan separately the indoor set of control compare, can access higher reducing noise effect.
In addition, the rotating speed separately of Air Blast fan control module 171 control fan 20A～20C, so that it is identical with the air quantity from blow-off outlet 3 outputs that has carried out in the situation of same rotational speed control in the situation of control separately to have carried out fan, thereby can reduces noise and do not make aeroperformance decline.
In addition, control loudspeaker 181,182 is arranged on the two sides of indoor set 100, so that control loudspeaker 181,182 does not expose to wind path.Therefore, can prevent to prevent the decline of aeroperformance owing to control loudspeaker 181,182 is exposed to the pressure loss that wind path produces.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, can make each self-separation of noise of sending from fan 20A～20C, the A of noise elimination mechanism only reduces the noise that sends from fan 20A, and the B of noise elimination mechanism only reduces the noise that sends from fan 20C.Therefore, the crosstalk noise composition that the noise that sends from fan 20B causes reduces.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, make wind path near pipe configuration, thereby can in one dimension, catch noise.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces.In addition, reduce the rotating speed of the fan 20B that noise elimination mechanism is not set, the noise that the zone of noise elimination mechanism is not set thus reduces, and compares with the structure of Figure 35, can access higher reducing noise effect.
Embodiment 14.
Can certainly in the indoor set of embodiment 11, use in the Air Blast fan information shown in the embodiment 13.In addition, in present embodiment 14, by with the difference of above-mentioned embodiment 8～embodiment 13 centered by describe the label identical to the part mark identical with embodiment 8～embodiment 13.
The basic structure of the indoor set 100 of present embodiment 14 is identical with Figure 47 of explanation in embodiment 11.The indoor set 100 of present embodiment 14 is with the difference of the indoor set 100 of embodiment 11, is input to the Air Blast fan information difference of the memory 132 of control device 281.More particularly, in present embodiment 14, the identification number of the fan 20 that will arrange at the two ends of the housing 1 of indoor set 100 is as Air Blast fan information.That is, as shown in Figure 47, the Air Blast fan information of present embodiment 14 is the identification number of fan 20A and fan 20C.
In addition, in embodiment 11, control loudspeaker 181, the 182 detailed structures that arrange to indoor set 100 sides are not described, in present embodiment 14, as described below control loudspeaker 181,182 is arranged to indoor set 100 sides.
Because control loudspeaker 181,182 has certain thickness, if thereby be arranged on front or the back side of indoor set 100, then can stop up wind path, cause aeroperformance to descend.Therefore, in present embodiment 14, configuration control loudspeaker 181,182 in the mechanical box of the both sides face of being located at housing 1 (taking in the box of control substrate etc., not shown).By such configuration control loudspeaker 181,182, can prevent that control loudspeaker 181,182 from exposing at wind path.
The action of indoor set 100 is identical with the action of explanation in embodiment 11.Therefore, independent control describes to the fan of fan 20A～20C below.
Identical with embodiment 11, the fan of Air Blast fan control module 171 is controlled separately rotating speed determining means 134 according to the rotary speed information that is determined by same rotational speed determining means 133 and the Air Blast fan information of reading from memory 132, determines the rotating speed of each fan when carrying out fan controls separately.Particularly, fan is controlled separately rotating speed determining means 134 raising identification numbers and is imported into the fan 20A of memory 132, the rotating speed of 20C, and reduces the rotating speed that identification number is not imported into the fan 20B of memory 132.Consequently, fan is controlled separately rotating speed determining means 134 and is improved the fan 20A that arranges at the two ends of the housing 1 of indoor set 100, the rotating speed of 20C, and is reduced in the rotating speed of the fan 20B that arranges beyond the two ends of housing 1 of indoor set 100.In addition, at this moment, also can be to become the mode of air quantity identical when control with same rotational speed to have carried out air quantity that fan obtains in the situation of control separately, decision fan 20A～20C rotating speed separately.
To carry out fan separately in the situation of the movement information signal of control (such as the signal of silent mode etc.) having inputted from remote controller 280, by switching SW135, switch to the separately rotation control signal of control of fan from the rotation control signal of same rotational speed control, and with the 20A～20C output from control device 281 to fan of this rotation control signal.Be imported into motor driver 282A～282C from the rotation control signal of control device 281 outputs, fan 20A～20C is controlled to be and the corresponding rotating speed of rotation control signal.
In the situation of the fan 20A at two ends, noise that 20C sends being carried out active noise elimination, carry out in the situation of active noise elimination with the noise that the fan 20B beyond the two ends is sent, the crosstalk noise composition when detecting the noise of these fans is different.This is because in the situation that detects the noise that sends from fan 20B, also be included in as the crosstalk noise composition from the fan 20A of adjacency, the noise that 20C sends.Therefore, in present embodiment 14, indoor set 100 is made as the structure with a plurality of fan 20A～20C, the fan 20A at the raising two ends that the crosstalk noise composition is less when noise measuring, the rotating speed of 20C, and the rotating speed of the fan 20B beyond the two ends that the crosstalk noise composition is larger when being reduced in noise measuring.
Consequently, the indoor set 100 of present embodiment 14 further improves at the higher regional soundproof effect of soundproof effect, the noise region lower at soundproof effect reduces, thereby with the indoor set that uses single fan or do not carry out fan separately the indoor set of control compare, can reduce the noise that sends from blow-off outlet 3 integral body.In addition, the indoor set 100 of present embodiment 14 constant mode of air quantity when controlling with same rotational speed is controlled individually to the rotating speed of a plurality of fan 20A～20C, can suppress thus the reduction of aeroperformance.
In addition, in present embodiment 14, control loudspeaker 181,182 is arranged on the two sides of indoor set 100, so that control loudspeaker 181,182 does not expose to wind path.Therefore, can prevent to prevent the decline of pneumatic performance owing to control loudspeaker 181,182 is exposed to the pressure loss that wind path produces.
In addition, same with Figure 48 and the indoor set shown in Figure 49 100 of embodiment 11 in the indoor set 100 of present embodiment 14, the wind path of indoor set 100 is divided into a plurality of zones, also can further improve soundproof effect thus.
Namely, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, can make the noise separation of sending from fan 20A～20C regional, the D of noise elimination mechanism only reduces the noise that sends from fan 20A, and the E of noise elimination mechanism only reduces the noise that sends from fan 20C.Therefore, can prevent that noise/soundproof effect from detecting microphone 211,212 and detecting the noise that sends from fan 20B, thereby noise/soundproof effect detects microphone 211,212 crosstalk noise composition reduces.
In addition, wind path is close to pipe configuration, thereby can catch noise in one dimension.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces, thereby soundproof effect further improves.On the other hand, reduce the rotating speed of the fan 20B that noise elimination mechanism is not set, the noise that the zone of noise elimination mechanism is not set thus reduces.Therefore, in the indoor set 100 of present embodiment 14, be divided into a plurality of zones by the wind path with indoor set 100, compare with the structure of Figure 47, can further reduce noise.In addition, need to can not be at the whole region division dividing plate of wind path, for example only at the upstream side of heat exchanger 50 or only in the downstream of heat exchanger 50, with the part of baffle for separating wind path yet.
In addition, in present embodiment 14, noise/soundproof effect is detected microphone 211,212 be arranged on control loudspeaker 181,182 downstream, detect microphone 211,212 but also can noise/soundproof effect be set at control loudspeaker 181,182 upstream side.In addition, in present embodiment 14, two control loudspeakers, noise/soundproof effect detection microphone and signal processing apparatus are set respectively, but are not limited to this quantity.
In addition, in present embodiment 14, field programmable gate array) large scale integrated circuit) or FPGA(Field Programmable Gate Array consist of Air Blast fan control module 171 by the CPU 131 in the control device 281, but also can pass through LSI(Large Scale Integration:: the hardware formation Air Blast fan control module 171 such as.In addition, the structure of Air Blast fan control module 171 also is not limited to this.
In addition, in present embodiment 14, Air Blast fan control module 171 constitutes, and improves the fan 20A at the two ends of indoor set 100, the rotating speed of 20C, and, reduce the rotating speed of two ends fan 20B in addition, but also can constitute a side who only carries out wherein.
Above, in the indoor set 100 of present embodiment 14, configure a plurality of fan 20A～20C, the Air Blast fan control module 171 that the rotating speed of fan 20A～20C is controlled individually is set.Air Blast fan control module 171 is controlled, and improving the fan 20A that arranges at the two ends of indoor set 100, the rotating speed of 20C, and carries out rotating speed control, with the rotating speed of the fan 20B that arranges beyond the two ends that are reduced in indoor set 100.Therefore, further improve at the crosstalk noise composition regional soundproof effect less and that soundproof effect is higher from the fan of adjacency, the large and lower noise region of soundproof effect reduces at the crosstalk noise composition.Therefore, with the indoor set that in the noise elimination mechanism of identical structure, uses single fan or do not carry out fan separately the indoor set of control compare, can further reduce noise.
In addition, Air Blast fan control module 171 control fan 20A～20C rotating speed separately, so that it is identical with the air quantity from blow-off outlet 3 outputs that has carried out in the situation of same rotational speed control in the situation of control separately to have carried out fan, thereby can reduces noise and do not make aeroperformance decline.
In addition, control loudspeaker 181,182 is arranged on the two sides of indoor set 100, so that control loudspeaker 181,182 does not expose to wind path.Therefore, can prevent to prevent the decline of aeroperformance owing to control loudspeaker 181,182 is exposed to the pressure loss that wind path produces.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, can make each self-separation of noise of sending from fan 20A～20C, the D of noise elimination mechanism only reduces the noise that sends from fan 20A, and the E of noise elimination mechanism only reduces the noise that sends from fan 20C.Therefore, the crosstalk noise composition that the noise that sends from fan 20B causes reduces.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, make wind path near pipe configuration, thereby can in one dimension, catch noise.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces.In addition, reduce the rotating speed of the fan 20B that noise elimination mechanism is not set, the noise that the zone of noise elimination mechanism is not set thus reduces, and compares with the structure of Figure 47, can access higher reducing noise effect.
In addition, in present embodiment 14, with noise measuring microphone 161,162 and soundproof effect detect microphone 191,192 and be integrated into noise/soundproof effect and detect microphone 211,212, thereby can reduce the quantity of microphone, can cut down the part number, and further reduce cost.
Embodiment 15.
Carry out fan separately in the situation of control detecting soundproof effect that microphone or noise/soundproof effect detects microphone according to soundproof effect, carry out like this fan below also can be for example to control separately.In addition, in present embodiment 15, by with the difference of above-mentioned embodiment 8～embodiment 14 centered by describe the label identical to the part mark identical with embodiment 8～embodiment 14.
Figure 54 is the front view that the indoor set of embodiments of the present invention 15 is shown.
The indoor set 100 of present embodiment 15 only is the structure of Air Blast fan control module 174 with the difference of the indoor set 100 of embodiment 9.
Air Blast fan control module 174 to present embodiment 15 describes.
Figure 55 is the structure chart that the control device of embodiments of the present invention 15 is shown.Below exercises and the unit of explanation are undertaken by carry out the program of installing in the control device 281 that indoor set 100 has.Identical with the structure of narration in embodiment 8～embodiment 14, control device 281 mainly has for input from the input part 130 of the signal of the external input device such as remote controller 280, carry out the CPU 131 of computing and the memory 132 that is used for storage data or program according to the program of installing.In addition, the CPU 131 of present embodiment 15 has Air Blast fan control module 174.
Air Blast fan control module 174 has same rotational speed determining means 133, a plurality of sound deadening capacity computing unit 138(quantity and soundproof effect, and to detect microphone identical), rotating speed determining means 134C controlled separately by fan and a plurality of SW 135(is identical with fan 20).Same rotational speed determining means 133 is according to the operation information of inputting from remote controller 280, the rotating speed when determining fan 20A～20C is all worked with same rotational speed.Be such as the cooling operation pattern, heat the operation mode information of operation mode and dehumidifying operation mode etc. from the operation information of remote controller 280 input, perhaps strong, in, the air quantity information such as weak.Sound deadening capacity computing unit 138 is used for input is detected the sound pressure level that microphone 191～193 detects by soundproof effect digital value S1, S2, S3, and according to the calculated signals sound deadening capacity of these S1, S2, S3.
Fan is controlled separately rotating speed determining means 134C according to the Air Blast fan information of the sound deadening capacity that is calculated by sound deadening capacity computing unit 138 and storage in memory 132, determines fan 20A～20C is carried out the every speed of fan when controlling separately.Air Blast fan information is to detect the information of the higher fan 20 of microphone 191～193 relevances with soundproof effect.SW135 switches to the rotation control signal of the fan 20A～20C of motor driver 282A～282C conveying for example according to the signal from remote controller 280 inputs.That is, SW135 switches to and makes fan 20A～20C all with identical rotary speed working (carry out same rotational speed control), perhaps makes fan 20A～20C respectively with independent rotary speed working (carrying out fan controls separately).
Figure 56 is the structure chart that the sound deadening capacity computing unit of embodiments of the present invention 15 is shown.
Sound deadening capacity computing unit 138 has: the equalization unit 136 that the signal (S1, S2 or S3) of inputting is averaged; The front sound pressure level memory cell 139 of control for the sound pressure level before the active noise elimination control of storage beginning; And difference engine 140.
Then, the action of indoor set 100 described.
Same with embodiment 9, when indoor set 100 action, the impeller of fan 20A～20C is rotated, the air in the upside suction chamber of fan 20A～20C, and carry air to fan 20A～20C downside, produce thus air-flow.Follow in this, produce operating sound (noise) near the blow-off outlet of fan 20A～20C, this sound downstream side is propagated.The air of being carried by fan 20A～20C passes through in wind path, and heat exchanger 50 is carried.For example, when carrying out cooling operation, from the cold-producing medium of pipe arrangement heat exchanger 50 transporting low temperatures that are connected with off-premises station (not shown).The air that heat exchanger 50 is carried is become cold air by the refrigerant cools that flows in heat exchanger 50, directly emit to indoor from blow-off outlet 3.
In addition, the action of the A～C of noise elimination mechanism is also identical with embodiment 9, move, so that export control sound by the noise of soundproof effect detection microphone 191～193 detections close to zero mode, as a result of suppress the noise in the soundproof effect detection microphone 191～193.
In the situation of the indoor set 100 of present embodiment 15, except the noise that sends from fan 20B, also enter soundproof effect from the fan 20A of adjacency, the noise that 20C sends (crosstalk noise composition) and detect microphone 193.On the other hand, detect microphone 191, the 192 crosstalk noise compositions that detect and compare little by the crosstalk noise composition that soundproof effect detection microphone 193 detects by soundproof effect.Because soundproof effect detects the fan 20(fan 20B that microphone 191,192 only has an adjacency).Therefore, compare with the C of noise elimination mechanism, the soundproof effect of the A of noise elimination mechanism, B improves.
Then, to the fan of the fan 20A～20C of present embodiment 15 separately control describe.
The operation information that utilizes remote controller 280 to select is imported into control device 281.As mentioned above, operation information is such as the cooling operation pattern, heats the operation mode information such as operation mode and dehumidifying operation mode.In addition, strong, in, the air quantity information such as weak too, as operation information 281 inputs from remote controller 280 to control device.The operation information that is imported into control device 281 is imported into same rotational speed determining means 133 via input part 130.Inputted the same rotational speed determining means 133 of operation information according to the operation information of inputting, the rotating speed when decision is carried out same rotational speed control to fan 20A～20C.In the situation that do not carry out separately control of fan, with all identical rotating speed control fan 20A～20C.
On the other hand, in sound deadening capacity computing unit 138, S1～S3(is detected the digital value of the sound pressure level that microphone 191～193 detects by soundproof effect) from signal processing apparatus 201～203 136 inputs to the equalization unit.In addition, before carrying out active noise elimination control, sound deadening capacity computing unit 138 detects the sound pressure levels that microphone 191～193 detects by 136 pairs of equalization unit by soundproof effect and averages during certain, and the sound pressure level after this is averaged out is stored in sound pressure level memory cell 139 before the control.Then, sound deadening capacity computing unit 138 averages during certain by the 136 pairs of sound pressure levels that detected by soundproof effect detection microphone 191～193 in equalization unit when active noise elimination control.
And, sound deadening capacity computing unit 138 is poor according to " averaging the sound pressure level that obtains by the 136 pairs of sound pressure levels that detected by soundproof effect detection microphone 191～193 in equalization unit during certain when active noise elimination is controlled " and " carrying out averaging the sound pressure level that obtains by the 136 pairs of sound pressure levels that detected by soundproof effect detection microphone 191～193 in equalization unit during necessarily before the active noise elimination control " (the front sound pressure level before being stored in control in the sound pressure level memory cell 139), the calculating sound deadening capacity.The sound deadening capacity that is calculated by sound deadening capacity computing unit 138 is imported into fan and controls separately rotating speed determining means 134C.
In addition, in memory 132, store Air Blast fan information.Air Blast fan information is the information of the fan 20 of the highest noise of the relevance of output and the sound that is detected microphone 191～193 detections by soundproof effect.These identification numbers detect microphone according to each each soundproof effect and distribute.In present embodiment 15, obtain as described below the identification number as Air Blast fan information.For example, confirm that the sound and which the noise relevance from the noise that fan 20A～20C sends that are detected by soundproof effect detection microphone 191 are the highest.Detected by soundproof effect in the highest situation of microphone 191 sound that detects and the noise relevances of sending from fan 20A, detecting the identification number that Air Blast fan information corresponding to microphone 191 becomes expression fan 20A with soundproof effect.Equally, also soundproof effect is detected microphone 192,193 and determine corresponding Air Blast fan information, and in advance storage in memory 132.
The decision of Air Blast fan information is carried out below can be for example like that.For example before the product export, under the state that makes fan 20A～20C work, detect by the microphone that can detect exactly the noise that sends from fan 20A～20C.And mensuration is by the coherent value of these microphones sound that detects and the sound that is detected by soundproof effect detection microphone 191.Then, determine to detect for soundproof effect the microphone of the highest detected value of microphone 191 detected value coherent value.The identification number of exporting the fan 20 of the noise that this microphone detects becomes with soundproof effect and detects Air Blast fan information corresponding to microphone 191.Can similarly determine to detect microphone 192,193 corresponding Air Blast fan information with soundproof effect.
In addition, the decision of Air Blast fan information is carried out below also can be for example like that.Air Blast fan control module 174 grades at indoor set 100 are installed coherence's arithmetic element 137 such shown in the embodiment 10 in advance.And, during running behind product export, measure the coherent value of detected value with the detected value of soundproof effect detection microphone 191～193 of noise measuring microphone 161～163.And, can be with apart from detecting the identification number of the nearer fan 20 of the highest noise measuring microphone of microphone 191～193 coherent value as Air Blast fan information with each soundproof effect.
In addition, the method for the decision of Air Blast fan information is not limited to said method.Get final product so long as can determine to export the method for the fan of the noise the highest with detected sound relevance that microphone 191～193 detects by soundproof effect.
The sound deadening capacity that is calculated by sound deadening capacity computing unit 138 and in memory 132 the Air Blast fan information of storage be imported into fan and control separately rotating speed determining means 134C.Fan is controlled separately rotating speed determining means 134C according to these information, determines the rotating speed of each fan when carrying out fan controls separately.Particularly, determine as follows the rotating speed of fan, improve the rotating speed of the fan higher with detected sound relevance that microphone detects by the larger soundproof effect of sound deadening capacity, and reduce the rotating speed with the higher fan of the sound relevance that is detected by the less soundproof effect detection microphone of sound deadening capacity.At this moment, also can be, in the situation that carried out fan separately the air quantity that obtains of control become the mode of air quantity identical when control with same rotational speed, decision fan 20A～20C rotating speed separately.
For example, in the indoor set 100 of present embodiment 15, the fan of supposing the noise that output and the sound relevance that is detected by soundproof effect detection microphone 191 are the highest is fan 20A, the fan of the noise that the sound relevance of exporting and being detected by soundproof effect detection microphone 192 is the highest is fan 20C, and the fan of the noise that output and the sound relevance that is detected by soundproof effect detection microphone 193 are the highest is fan 20B.And, suppose that the sound deadening capacity of soundproof effect detection microphone 191 is-5dB, the sound deadening capacity that soundproof effect detects microphone 192 is-5dB, and the sound deadening capacity of soundproof effect detection microphone 193 is-2dB.In this situation, fan is controlled separately rotating speed determining means 134C with the rotating speed of raising fan 20A, 20C, and the mode of the rotating speed of reduction fan 20B determines the rotating speed of each fan.Air quantity and rotating speed have proportionate relationship, thereby for example, in the situation of the structure that Figure 54 is such, improve 10% by the rotating speed with fan 20A and fan 20C, and the rotating speed reduction by 20% of fan 20B is obtained identical air quantity.
In addition, the determining method of the rotating speed of above-mentioned fan 20A～20C only is an example.For example, in the indoor set 100 of present embodiment 15, the fan of supposing the noise that output and the sound relevance that is detected by soundproof effect detection microphone 191 are the highest is fan 20A, the fan of the noise that the sound relevance of exporting and being detected by soundproof effect detection microphone 192 is the highest is fan 20C, and the fan of the noise that output and the sound relevance that is detected by soundproof effect detection microphone 193 are the highest is fan 20B.And, suppose that the sound deadening capacity of soundproof effect detection microphone 191 is-5dB, the sound deadening capacity that soundproof effect detects microphone 192 is-3dB, and the sound deadening capacity of soundproof effect detection microphone 193 is-2dB.In this situation, can be, to improve the rotating speed of fan 20A, reduce the rotating speed of fan 20B, and keep the mode of the rotating speed of fan 20C, determine the rotating speed of each fan.Namely, can be, to improve the rotating speed that detects the higher fan 20A of microphone 191 relevances with the soundproof effect of sound deadening capacity maximum, to detect with the soundproof effect of sound deadening capacity minimum the rotating speed of the higher fan 20B of microphone 193 relevances, and keep the mode of the rotating speed of the fan 20C that does not belong to above situation, determine the rotating speed of each fan.
To carry out fan separately in the situation of the movement information signal of control (such as the signal of silent mode etc.) having inputted from remote controller 280, by switching SW135, switch to the separately rotation control signal of control of fan from the rotation control signal of same rotational speed control, and with the 20A～20C output from control device 281 to fan of this rotation control signal.Be imported into motor driver 282A～282C from the rotation control signal of control device 281 outputs, control fan 20A～20C becomes and the corresponding rotating speed of rotation control signal.
At this, as mentioned above, in the situation of the indoor set 100 of present embodiment 15, because from the size of the crosstalk noise composition of the fan of adjacency, compare with near the zone soundproof effect detects microphone 193, near the regional sound deadening capacity that soundproof effect detects the microphone 191,192 is higher.On the other hand, near the regional sound deadening capacities the soundproof effect detection microphone 193 reduce.Therefore, in the indoor set 100 of the present embodiment 15 with a plurality of fan 20A～20C, the soundproof effect detection microphone 191 larger with sound deadening capacity, the noise fan 20A that 192 relevances are higher, the rotating speed of 20C are exported in raising, and the soundproof effect that reduction is exported and sound deadening capacity is less detects the rotating speed of the fan 20B of the higher noise of microphone 193 relevances.
Consequently, the indoor set 100 of present embodiment 15 further improves at the higher regional soundproof effect of soundproof effect, the noise region lower at soundproof effect reduces, thereby with the indoor set that uses single fan or do not carry out fan separately the indoor set of control compare, can reduce the noise that sends from blow-off outlet 3 integral body.In addition, the indoor set 100 of present embodiment 15 constant mode of air quantity when controlling with same rotational speed is controlled individually to the rotating speed of a plurality of fan 20A～20C, can suppress thus the reduction of aeroperformance.
In addition, same with Figure 42 of embodiment 9 and indoor set 100 shown in Figure 43 in the indoor set 100 of present embodiment 15, the wind path of indoor set 100 is divided into a plurality of zones, can further improve soundproof effect thus.
Namely, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, can make the noise separation of sending from fan 20A～20C regional, the A of noise elimination mechanism only reduces the noise that sends from fan 20A, the B of noise elimination mechanism only reduces the noise that sends from fan 20C, and the C of noise elimination mechanism only reduces the noise that sends from fan 20B.Therefore, noise measuring microphone 161～163 and soundproof effect detect the crosstalk noise composition that microphone 191～193 detects (noise that sends from the fan of the stream of being located at adjacency) and reduce.
In addition, wind path is close to pipe configuration, thereby can catch noise in one dimension.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces, thereby soundproof effect further improves.Therefore, in the indoor set 100 of present embodiment 15, be divided into a plurality of zones by the wind path with indoor set 100, compare with the structure of Figure 54, can further reduce noise.On the other hand, in the situation that has the fan that noise elimination mechanism is not set, reduce the rotating speed of this fan 20, the noise that the zone of noise elimination mechanism is not set thus reduces, and can access same effect.In addition, in Figure 42 and Figure 43, inserted dividing plate in the whole zone of wind path, but also can be, for example only at the upstream side of heat exchanger 50 or only in the downstream of heat exchanger 50, with the part of baffle for separating wind path.
In addition, in present embodiment 15, soundproof effect is detected on the roughly extended line of rotating shaft that microphone 191～193 is configured in fan 20A～20C, but as long as in the downstream of control loudspeaker 181～183, the setting position that soundproof effect detects microphone 191～193 can be the optional position.In addition, in present embodiment 15,3 noise measuring microphones, control loudspeaker, soundproof effect detection microphone and signal processing apparatus are set respectively, but are not limited to this quantity.
In addition, in present embodiment 15, field programmable gate array) large scale integrated circuit) or FPGA(Field Programmable Gate Array consist of Air Blast fan control module 174 by the CPU131 in the control device 281, but also can pass through LSI(Large Scale Integration:: the hardware formation Air Blast fan control module 174 such as.In addition, the structure of Air Blast fan control module 174 also is not limited to the structure shown in Figure 55 and Figure 56.
In addition, in present embodiment 15, Air Blast fan control module 174 constitutes, the rotating speed of the fan of the noise that the sound relevance that improves output and detected by the larger soundproof effect detection microphone of sound deadening capacity is higher, and, the rotating speed of the fan of the noise that the sound relevance that reduces output and detected by the less soundproof effect detection microphone of sound deadening capacity is higher, but also can constitute a side who only carries out wherein.
In addition, in present embodiment 15, use soundproof effect to detect the sound deadening capacity of microphone 191～193 as the parameter of the rotating speed of control fan, still, can certainly use other amount to be used as controlling the parameter of the rotating speed of fan.Also can be, for example, calculate respectively the mean value that is detected the sound pressure level that microphone 191～193 detects by soundproof effect, reduce the rotating speed that output and soundproof effect by the mean value maximum of sound pressure level detect the fan of the higher noise of sound relevance that microphone detects.In addition, also can be, for example, calculate respectively the mean value that is detected the sound pressure level that microphone 191～193 detects by soundproof effect, improve the rotating speed that output and soundproof effect by the mean value minimum of sound pressure level detect the fan of the higher noise of sound relevance that microphone detects.Can certainly carry out above two sides.
In addition, as the parameter of the rotating speed of controlling fan, coherent value, noise measuring microphone 163 and the soundproof effect that can use noise measuring microphone 161 and soundproof effect to detect coherent value, noise measuring microphone 162 and the soundproof effect detection microphone 192 of microphone 191 detects the coherent value of microphone 193.Also can be for example, to reduce the rotating speed that output and soundproof effect by the coherent value minimum detect the fan of the higher noise of sound relevance that microphone detects.In addition, also can be for example, to improve the rotating speed that output and soundproof effect by the coherent value maximum detect the fan of the higher noise of sound relevance that microphone detects.Can certainly carry out above two sides.
Above, in the indoor set 100 of present embodiment 15, configure a plurality of fan 20A～20C, the control device 281(that the rotating speed of fan 20A～20C is controlled individually is set more particularly is Air Blast fan control module 174).Air Blast fan control module 174 is controlled, so that detect in the sound deadening capacity of microphone 191～193 at soundproof effect, improve the rotating speed of the fan of the output noise higher with detected sound relevance that microphone detects by the larger soundproof effect of sound deadening capacity, and reduce the rotating speed of the fan of the output noise higher with detected sound relevance that microphone detects by the less soundproof effect of sound deadening capacity.Therefore, by improving the rotating speed in the larger zone of sound deadening capacity, soundproof effect further improves, and by reducing the rotating speed in the less zone of sound deadening capacity, this regional noise reduces.Therefore, with the indoor set that in the noise elimination mechanism of same structure, uses single fan or do not carry out fan separately the indoor set of control compare, can further reduce noise.
In addition, in the indoor set 100 of present embodiment 15, determine the fan of the noise that output and the sound relevance that is detected the microphone detection by the larger soundproof effect of sound deadening capacity are higher, even if thereby in the situation of having used the different a plurality of fan 20A～20C of the sound pressure level exported, also can carry out exactly rotating speed control.
In addition, Air Blast fan control module 174 control fan 20A～20C rotating speed separately, so that it is identical with the air quantity from blow-off outlet 3 outputs that has carried out in the situation of same rotational speed control in the situation of control separately to have carried out fan, thereby can reduces noise and do not make aeroperformance decline.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, can make each self-separation of noise of sending from fan 20A～20C, the A of noise elimination mechanism only reduces the noise that sends from fan 20A, the B of noise elimination mechanism only reduces the noise that sends from fan 20C, and the C of noise elimination mechanism only reduces the noise that sends from fan 20B.Therefore, in each zone, the crosstalk noise composition that is caused by the noise in the zone that outputs to adjacency reduces.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, make wind path near pipe configuration, thereby can in one dimension, catch noise.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces, thereby compares with the structure of Figure 54, can access higher reducing noise effect.On the other hand, in the situation that has the zone that noise elimination mechanism is not set, reduce the rotating speed of the fan that noise elimination mechanism is not set, thus, this regional noise reduces, and can access soundproof effect equally.
Embodiment 16.
Fan shown in the embodiment 15 is controlled separately (use is controlled separately from the fan that soundproof effect detects the information of the higher fan 20 of microphone relevance) and also can be implemented in the air conditioner with noise elimination mechanism different with the noise elimination mechanism of embodiment 15.In addition, describe in the indoor set of embodiment 12, adopting in the independent situation about controlling of the fan shown in the embodiment 15 below.In addition, in present embodiment 16, by with the difference of above-mentioned embodiment 8～embodiment 15 centered by describe the label identical to the part mark identical with embodiment 8～embodiment 15.
Figure 57 is the front view that the indoor set of embodiments of the present invention 16 is shown.
The indoor set 100 of present embodiment 16 only is the structure of Air Blast fan control module 174 with indoor set 100 differences of embodiment 12.In addition, the structure shown in Figure 55 of the structure of Air Blast fan control module 174 and embodiment 15 is identical
Then, the action of indoor set 100 described.
Identical with embodiment 12, when indoor set 100 action, the impeller of fan 20A～20C is rotated, the air in the upside suction chamber of fan 20A～20C, and carry air to fan 20A～20C downside, produce thus air-flow.Follow in this, produce operating sound (noise) near the blow-off outlet of fan 20A～20C, this sound downstream side is propagated.The air of being carried by fan 20A～20C passes through in wind path, and heat exchanger 50 is carried.For example, when carrying out cooling operation, from the cold-producing medium of pipe arrangement heat exchanger 50 transporting low temperatures that are connected with off-premises station (not shown).The air that heat exchanger 50 is carried is become cold air by the refrigerant cools that flows in heat exchanger 50, directly emit to indoor from blow-off outlet 3.
In addition, the action of the D～F of noise elimination mechanism is also identical with embodiment 12, move and export control sound so that detect the noise that microphone 211～213 detects by noise/soundproof effect close to zero mode, as a result of suppress the noise that noise/soundproof effect detects microphone 211～213.
In the situation of the indoor set 100 of present embodiment 16, except the noise from fan 20B, also enter noise/soundproof effect from the fan 20A of adjacency, the noise that 20C sends (crosstalk noise composition) and detect microphone 213.On the other hand, detect crosstalk noise composition that microphone 211,212 detects and compare little by the crosstalk noise composition that noise/soundproof effect detection microphone 213 detects by noise/soundproof effect.Because noise/soundproof effect detects the fan 20(fan 20B that microphone 211,212 only has an adjacency).Therefore, compare with the F of noise elimination mechanism, the soundproof effect of the D of noise elimination mechanism, E improves.
The content of explanation is almost identical in the independent control of the fan of fan 20A～20C and the embodiment 15.The independent difference of the fan of explanation is in the independent control of the fan of present embodiment 16 and the embodiment 15, and the S1～S3 that is input to sound deadening capacity computing unit 138 is the digital value by noise/sound pressure level that soundproof effect detection microphone 211～213 detects.In addition, the difference that the fan of explanation is controlled separately in the independent control of the fan of present embodiment 16 and the embodiment 15 is, pre-stored Air Blast fan information is the identification number of fan 20 in memory 132, the noise that these fan 20 outputs are the highest with the relevance of the sound that is detected microphone 211～213 detections by noise/soundproof effect.
Therefore, the fan of Air Blast fan control module 174 is controlled separately rotating speed determining means 134C according to the Air Blast fan information of the sound deadening capacity that is calculated by sound deadening capacity computing unit 138 and storage in memory 132, determine as follows the rotating speed of fan, improve the rotating speed of the fan higher with detected sound relevance that microphone detects by the larger noise of sound deadening capacity/soundproof effect, and reduce and rotating speed by the higher fan of sound relevance that the less noise of sound deadening capacity/soundproof effect detection microphone detects.At this moment, also can be to become the mode of air quantity identical when control with same rotational speed to have carried out air quantity that fan obtains in the situation of control separately, decision fan 20A～20C rotating speed separately.
For example, in the indoor set 100 of present embodiment 16, the fan of supposing the noise that output is the highest with detected sound relevance that microphone 211 detects by noise/soundproof effect is fan 20A, the fan of the noise that output is the highest with detected sound relevance that microphone 212 detects by noise/soundproof effect is fan 20C, and the fan of the noise that output is the highest with detected sound relevance that microphone 213 detects by noise/soundproof effect is fan 20B.And, suppose that the sound deadening capacity of noise/soundproof effect detection microphone 211 is-5dB, the sound deadening capacity that noise/soundproof effect detects microphone 212 is-5dB, and the sound deadening capacity of noise/soundproof effect detection microphone 213 is-2dB.In this situation, fan is controlled separately rotating speed determining means 134C with the rotating speed of raising fan 20A, 20C, and the mode of the rotating speed of reduction fan 20B determines the rotating speed of each fan.Air quantity and rotating speed have proportionate relationship, thereby for example, in the situation of the structure that Figure 57 is such, improve 10% by the rotating speed with fan 20A and fan 20C, and the rotating speed reduction by 20% of fan 20B is obtained identical air quantity.
In addition, the determining method of the rotating speed of above-mentioned fan 20A～20C only is an example.For example, in the indoor set 100 of present embodiment 16, the fan of supposing the noise that output is the highest with detected sound relevance that microphone 211 detects by noise/soundproof effect is fan 20A, the fan of the noise that output is the highest with detected sound relevance that microphone 212 detects by noise/soundproof effect is fan 20C, and the fan of the noise that output is the highest with detected sound relevance that microphone 213 detects by noise/soundproof effect is fan 20B.And, suppose that the sound deadening capacity of noise/soundproof effect detection microphone 211 is-5dB, the sound deadening capacity that noise/soundproof effect detects microphone 212 is-3dB, and the sound deadening capacity of noise/soundproof effect detection microphone 213 is-2dB.In this situation, can be, to improve the rotating speed of fan 20A, reduce the rotating speed of fan 20B, and keep the mode of the rotating speed of fan 20C, determine the rotating speed of each fan.Namely, can be, to improve the rotating speed that detects the higher fan 20A of microphone 191 relevances with the soundproof effect of sound deadening capacity maximum, reduce the rotating speed that detects the higher fan 20B of microphone 193 relevances with the soundproof effect of sound deadening capacity minimum, and keep the mode of the rotating speed of the fan 20C that does not belong to above situation, determine the rotating speed of each fan.
To carry out fan separately in the situation of the movement information signal of control (such as the signal of silent mode etc.) having inputted from remote controller 280, by switching SW135, switch to the separately rotation control signal of control of fan from the rotation control signal of same rotational speed control, and with the 20A～20C output from control device 281 to fan of this rotation control signal.Be imported into motor driver 282A～282C from the rotation control signal of control device 281 outputs, fan 20A～20C is controlled to be and the corresponding rotating speed of rotation control signal.
At this, as mentioned above, in the situation of the indoor set 100 of present embodiment 16, because the size from the crosstalk noise composition of the fan of adjacency, compare with near the zone noise/soundproof effect detects microphone 213, near the regional sound deadening capacity that noise/soundproof effect detects the microphone 211,212 increases.On the other hand, near the regional sound deadening capacities noise/soundproof effect detection microphone 213 reduce.Therefore, in the indoor set 100 of the present embodiment 16 with a plurality of fan 20A～20C, improve the fan 20A that the larger soundproof effect of output and sound deadening capacity detects microphone 191, noise that 192 relevances are higher, the rotating speed of 20C, and reduce the rotating speed that the less soundproof effect of output and sound deadening capacity detects the fan 20B of the higher noise of microphone 193 relevances.
Consequently, the indoor set 100 of present embodiment 16 further improves at the higher regional soundproof effect of soundproof effect, the noise region lower at soundproof effect reduces, thereby with the indoor set that uses single fan or do not carry out fan separately the indoor set of control compare, can reduce the noise that sends from blow-off outlet 3 integral body.In addition, the indoor set 100 of present embodiment 16 constant mode of air quantity when controlling with same rotational speed is controlled individually to the rotating speed of a plurality of fan 20A～20C, can suppress thus the reduction of aeroperformance.
In addition, same with Figure 51 and the indoor set shown in Figure 52 100 of embodiment 12 in the indoor set 100 of present embodiment 16, the wind path of indoor set 100 is divided into a plurality of zones, can further improve soundproof effect thus.
Namely, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, can make the noise separation of sending from fan 20A～20C regional, the D of noise elimination mechanism only reduces the noise that sends from fan 20A, the E of noise elimination mechanism only reduces the noise that sends from fan 20C, and the F of noise elimination mechanism only reduces the noise that sends from fan 20B.Therefore, noise/soundproof effect detects the crosstalk noise composition that microphone 211～213 detects (noise that sends from the fan of the stream of being located at adjacency) and reduces.
In addition, wind path is close to pipe configuration, thereby can catch noise in one dimension.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces, thereby soundproof effect further improves.Therefore, in the indoor set 100 of present embodiment 16, be divided into a plurality of zones by the wind path with indoor set 100, compare with the structure of Figure 57, can further reduce noise.On the other hand, in the situation that has the fan that noise elimination mechanism is not set, reduce the rotating speed of this fan 20, the noise that the zone of noise elimination mechanism is not set thus reduces, and can access same effect.In addition, in Figure 51 and Figure 52, inserted dividing plate in the whole zone of wind path, but also can be, for example only at the upstream side of heat exchanger 50 or only in the downstream of heat exchanger 50, with the part of baffle for separating wind path.
In addition, in present embodiment 16, noise/soundproof effect is detected microphone 211～213 be arranged on the downstream of control loudspeaker 181～183, detect microphone 211～213 but noise/soundproof effect also can be set at the upstream side of control loudspeaker 181～183.In addition, in present embodiment 16,3 control loudspeakers, noise/soundproof effect detection microphone and signal processing apparatus are set respectively, but are not limited to this quantity.
In addition, in present embodiment 16, field programmable gate array) large scale integrated circuit) or FPGA(Field Programmable Gate Array consist of Air Blast fan control module 174 by the CPU131 in the control device 281, but also can pass through LSI(Large Scale Integration:: the hardware formation Air Blast fan control module 174 such as.In addition, the structure of Air Blast fan control module 174 also is not limited to the structure shown in Figure 55.
In addition, in present embodiment 16, Air Blast fan control module 174 constitutes, the rotating speed of the fan of the noise that the sound relevance that improves output and detected by the larger soundproof effect detection microphone of sound deadening capacity is higher, and, the rotating speed of the fan of the noise that the sound relevance that reduces output and detected by the less soundproof effect detection microphone of sound deadening capacity is higher, but also can constitute a side who only carries out wherein.
In addition, in present embodiment 16, use noise/soundproof effect to detect the sound deadening capacity of microphone 211～213 as the parameter of the rotating speed of control fan, still, can certainly use other amount to be used as controlling the parameter of the rotating speed of fan.Also can be, for example, calculate respectively the mean value that is detected the sound pressure level that microphone 211～213 detects by noise/soundproof effect, reduce the rotating speed of the fan of the output noise higher with detected sound relevance that microphone detects by the noise of the mean value maximum of sound pressure level/soundproof effect.In addition, also can be, for example, calculate respectively the mean value that is detected the sound pressure level that microphone 211～213 detects by noise/soundproof effect, improve the rotating speed of the fan of the output noise higher with detected sound relevance that microphone detects by the noise of the mean value minimum of sound pressure level/soundproof effect.Can certainly carry out above two sides.
Above, in the indoor set 100 of present embodiment 16, configure a plurality of fan 20A～20C, the control device 281(that the rotating speed of fan 20A～20C is controlled individually is set more particularly is Air Blast fan control module 174).Air Blast fan control module 174 is controlled, so that detect in the sound deadening capacity of microphone 211～213 at noise/soundproof effect, improve the rotating speed of the fan of the output noise higher with detected sound relevance that microphone detects by the larger noise of sound deadening capacity/soundproof effect, and reduce the rotating speed of the fan of the output noise higher with detected sound relevance that microphone detects by the less noise of sound deadening capacity/soundproof effect.Therefore, the regional soundproof effect that sound deadening capacity is larger further improves, and the noise region that sound deadening capacity is less reduces.Therefore, with the indoor set that in the noise elimination mechanism of identical structure, uses single fan or do not carry out fan separately the indoor set of control compare, can further reduce noise.
In addition, in the indoor set 100 of present embodiment 16, determine the fan of the noise that output and the sound relevance that is detected the microphone detection by the larger noise of sound deadening capacity/soundproof effect are higher, even if thereby in the situation of having used the different a plurality of fan 20A～20C of the sound pressure level exported, also can carry out exactly rotating speed control.
In addition, Air Blast fan control module 174 control fan 20A～20C rotating speed separately, so that it is identical with the air quantity from blow-off outlet 3 outputs that has carried out in the situation of same rotational speed control in the situation of control separately to have carried out fan, thereby can reduces noise and do not make aeroperformance decline.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, can make each self-separation of noise of sending from fan 20A～20C, the D of noise elimination mechanism only reduces the noise that sends from fan 20A, the E of noise elimination mechanism only reduces the noise that sends from fan 20C, and the F of noise elimination mechanism only reduces the noise that sends from fan 20B.Therefore, in each zone, the crosstalk noise composition that is caused by the noise in the zone that outputs to adjacency reduces.
In addition, by with dividing plate 90,90a the wind path of indoor set 100 being divided into a plurality of zones, make wind path near pipe configuration, thereby can in one dimension, catch noise.Therefore, impartial in the phase place of the noise of indoor set 100 internal delivery, the phase error when making the control interference of sound reduces, thereby compares with the structure of Figure 57, can access higher reducing noise effect.On the other hand, in the situation that has the zone that noise elimination mechanism is not set, reduce the rotating speed of the fan that noise elimination mechanism is not set, noise that thus should the zone reduces, and can access soundproof effect equally.
In addition, in present embodiment 16, noise measuring microphone 161～163 and soundproof effect are detected microphone 191～193 be integrated into noise/soundproof effect detection microphone 211～213, thereby can reduce the quantity of microphone, can cut down the part number, and further reduce cost.
Label declaration
1: housing, 1b: back part, 2: suction inlet, 3: blow-off outlet, 5: horn mouth, 5a: top, 5b: central portion, 5c: bottom, 6: nozzle, 10: filter, 15: finger guard device, 16: support of motor, 17: fixed part, 18: support component, 20(20A～20C): fan, 20a: rotating shaft, 21: wheel hub, 25: impeller, 30: fan motor, 50: heat exchanger, 50a: line of symmetry, 51: front face side heat exchanger, 55: rear side heat exchanger, 56: fin, 57: heat-transfer pipe, 58: heat exchanger fixed part, 70: blade up and down, 90: dividing plate, 90a: dividing plate, 100: indoor set, 110: front face side is coagulated water pond, and 111: drainage path, 111a: tongue, 115: rear side is coagulated water pond, and 116: connector, 117: drainpipe, 121: multiplier, 122: adder, 123: delay element, 124: multiplier, 130: input part, 131:CPU, 132: memory, 133: the same rotational speed determining means, 134(134A, 134B, 134C): fan is controlled separately the rotating speed determining means, 135:SW, 136: equalization unit, 137: coherence's arithmetic element, 138: the sound deadening capacity computing unit, 139: sound pressure level memory cell before the control, 140: difference engine, 151: microphone amplifier, the 152:A/D converter, 153: weighted units, 154:D/A converter, 155: amplifier, 158, the 160:FIR wave filter, the 159:LMS algorithm device, 161～163: noise measuring microphone, 171～174: the Air Blast fan control module, 181～183: control loudspeaker, 191～193: soundproof effect detects microphone, and 201～208: signal processing apparatus, 211～213: noise/soundproof effect detects microphone, 270: wall components, 280: remote controller, 281: control device, 282A～282C: motor driver.

Claims (34)

1. air conditioner, described air conditioner be characterised in that, it has:
Housing, it is formed with suction inlet on top, and subordinate's side is formed with blow-off outlet in front;
A plurality of Air Blast fans, it is arranged side by side the downstream of the described suction inlet in described housing;
Heat exchanger, it is arranged on the downstream of the described fan in the described housing and at the upstream side of described blow-off outlet, air and the cold-producing medium that blows out from described fan is carried out heat exchange;
Noise detection apparatus, it detects the noise that sends from described fan;
The control voice output, its output makes the control sound of described reducing noise;
The soundproof effect checkout gear, it detects the soundproof effect of described control sound;
Control sound generating apparatus, it makes described control voice output export described control sound according to the testing result of described noise detection apparatus and described soundproof effect checkout gear; And
Control device, it carries out rotating speed control individually to a plurality of described fans,
The described control device soundproof effect when described control sound is interfered with the noise that sends from described fan is controlled the rotating speed of a plurality of described fans.
2. air conditioner according to claim 1 is characterized in that,
Described control device according to the sound that is detected by described soundproof effect checkout gear and the relevance of described fan, changes the rotating speed of described fan based on the soundproof effect that is detected by described soundproof effect checkout gear.
3. air conditioner according to claim 2 is characterized in that,
Described control device carries out the rotating speed control of at least one party in following two kinds of rotating speeds control: improve the rotating speed control of rotating speed of the described fan of the highest noise of output and the sound relevance that is detected by the described soundproof effect checkout gear that detects large soundproof effect, and reduce the rotating speed control of rotating speed of the described fan of the minimum noise of output and the sound relevance that is detected by this soundproof effect checkout gear.
4. according to claim 2 or 3 described air conditioners, it is characterized in that,
Described control device carries out following rotating speed control: the rotating speed of the described fan of the noise that reduction output and the sound relevance that is detected by the described soundproof effect checkout gear that detects little soundproof effect are the highest.
5. air conditioner according to claim 2 is characterized in that,
Described air conditioner has a plurality of described soundproof effect checkout gears, the sound pressure level that described control device detects according to a plurality of described soundproof effect checkout gears, carry out the rotating speed control of at least one party in following two kinds of rotating speeds control: improve the rotating speed control of rotating speed of the described fan of the highest noise of output and the sound relevance that is detected by the described soundproof effect checkout gear that detects minimal sound pressure levels, and reduce the rotating speed control of rotating speed of the described fan of the highest noise of output and the sound relevance that is detected by the described soundproof effect checkout gear that detects maximum sound pressure level.
6. air conditioner according to claim 2 is characterized in that,
Described air conditioner has a plurality of described noise detection apparatus and a plurality of described soundproof effect checkout gear,
Described control device calculates the coherent value of the detected value of the detected value of described noise detection apparatus and described soundproof effect checkout gear, carry out the rotating speed control of at least one party in following two kinds of rotating speeds control: improve the rotating speed control of rotating speed of the described fan of the highest noise of sound relevance that output and described soundproof effect checkout gear by the coherent value maximum detect, and reduce the rotating speed control of rotating speed of the described fan of the highest noise of sound relevance that output and described soundproof effect checkout gear by the coherent value minimum detect.
7. air conditioner according to claim 1 and 2 is characterized in that,
Described control device has the memory of the described fan of storage and described soundproof effect checkout gear near distance, carry out the rotating speed control of at least one party in following two kinds of rotating speeds control: improve the rotating speed control of the rotating speed that is stored in the described memory and described fan described soundproof effect checkout gear near distance, and reduce the rotating speed control of the rotating speed that is stored in the described fan beyond in the described memory and the described fan described soundproof effect checkout gear near distance.
8. air conditioner according to claim 1 and 2 is characterized in that,
Described control device has the memory of the described fan of storage and described soundproof effect checkout gear near distance, carry out the rotating speed control of at least one party in following two kinds of rotating speeds control: reduce the rotating speed control with the rotating speed of the described fan of the described soundproof effect checkout gear near distance that detects high sound pressure level, and improve with the rotating speed of the rotating speed of the described fan of the described soundproof effect checkout gear near distance that detects low sound pressure level and control.
9. air conditioner according to claim 1 and 2 is characterized in that,
Described control device has the memory of the described fan of storage and described soundproof effect checkout gear near distance, calculate the coherent value of the detected value of the detected value of described noise detection apparatus and described soundproof effect checkout gear, carry out the rotating speed control of at least one party in following two kinds of rotating speeds control: reduce the rotating speed control with the rotating speed of the described fan of the low described soundproof effect checkout gear near distance of coherent value, and the rotating speed of the rotating speed of the described fan of the high described soundproof effect checkout gear near distance of raising and coherent value is controlled.
10. the described air conditioner of any one in 9 according to claim 1 is characterized in that,
A plurality of zones will be divided into by dividing plate in the described housing.
11. air conditioner according to claim 10 is characterized in that,
When a plurality of described fans being carried out individually rotating speed control, described control device carries out following rotating speed control: in a plurality of described zones, reduce the rotating speed of being located at the described fan in the described zone that described soundproof effect checkout gear is not set.
12. according to claim 10 or 11 described air conditioners, it is characterized in that,
When a plurality of described fans being carried out individually rotating speed control, described control device carries out following rotating speed control: in a plurality of described zones, improve the rotating speed of being located at the described fan in the described zone that is provided with described soundproof effect checkout gear.
13. the described air conditioner of any one in 12 is characterized in that according to claim 1,
When a plurality of described fans being carried out individually rotating speed control, described control device carries out rotating speed control so that air quantity is controlled the mode that air quantity before equates with carrying out this rotating speed individually to a plurality of described fans.
14. an air conditioner is characterized in that, described air conditioner has:
Housing, it is formed with suction inlet on top, and subordinate's side has the blow-off outlet of being formed with in front;
A plurality of Air Blast fans, it is arranged side by side the downstream of the described suction inlet in described housing;
Heat exchanger, it is arranged on the downstream of the described fan in the described housing and at the upstream side of described blow-off outlet, air and the cold-producing medium that blows out from described fan is carried out heat exchange;
The control voice output, its output makes the control sound of the reducing noise that sends from described fan;
Noise/soundproof effect checkout gear, it detects described noise, and detects the soundproof effect of described control sound;
Control sound generating apparatus, it makes described control voice output export described control sound according to the testing result of described noise/soundproof effect checkout gear; And
Control device, it carries out rotating speed control individually to a plurality of described fans,
The described control device soundproof effect when described control sound is interfered with the noise that sends from described fan is controlled the rotating speed of a plurality of described fans.
15. air conditioner according to claim 14 is characterized in that,
Described control device according to by described noise/sound that the soundproof effect checkout gear detects and the relevance of described fan, changes the rotating speed of described fan based on by the soundproof effect that described noise/the soundproof effect checkout gear detects.
16. air conditioner according to claim 15 is characterized in that,
Described control device carries out the rotating speed control of at least one party in following two kinds of rotating speeds control: improve output and rotating speed control by the rotating speed of the described fan that detects the highest noise of the soundproof effect sound relevance that large described noise/the soundproof effect checkout gear detects, and reduce the rotating speed control of rotating speed of the described fan of the minimum noise of output and the sound relevance that is detected by this noise/soundproof effect checkout gear.
17. according to claim 15 or 16 described air conditioners, it is characterized in that,
Described control device carries out following rotating speed control: reduce the rotating speed of exporting with by the described fan that detects the highest noise of the soundproof effect sound relevance that little described noise/the soundproof effect checkout gear detects.
18. air conditioner according to claim 15 is characterized in that,
Described air conditioner has a plurality of described noises/soundproof effect checkout gear, described control device is according to a plurality of sound pressure levels that described noise/the soundproof effect checkout gear detects, carry out the rotating speed control of at least one party in following two kinds of rotating speeds control: improve output and rotating speed control by the rotating speed of the described fan of the highest noise of sound relevance that the described noise that detects minimal sound pressure levels/the soundproof effect checkout gear detects, and reduce output and rotating speed by the described fan of the highest noise of sound relevance that the described noise that detects maximum sound pressure level/the soundproof effect checkout gear detects.
19. according to claim 14 or 15 described air conditioners, it is characterized in that,
Described control device has the memory of the described fan of storage and described noise/soundproof effect checkout gear near distance, carry out the rotating speed control of at least one party in following two kinds of rotating speeds control: improve the rotating speed control of the rotating speed that is stored in the described memory and described fan described noise/soundproof effect checkout gear near distance, and reduce the rotating speed control of the rotating speed that is stored in the described fan beyond in the described memory and the described fan described noise/soundproof effect checkout gear near distance.
20. according to claim 14 or 15 described air conditioners, it is characterized in that,
Described control device has the memory of the described fan of storage and described noise/soundproof effect checkout gear near distance, carry out the rotating speed control of at least one party in following two kinds of rotating speeds control: reduce the rotating speed control with the rotating speed of the described fan of the described noise that detects high sound pressure level/soundproof effect checkout gear near distance, and improve with the rotating speed of the rotating speed of the described fan of the described noise that detects low sound pressure level/soundproof effect checkout gear near distance and control.
21. the described air conditioner of any one in 20 is characterized in that according to claim 14,
A plurality of zones will be divided into by dividing plate in the described housing.
22. air conditioner according to claim 21 is characterized in that,
When a plurality of described fans being carried out individually rotating speed control, described control device carries out following rotating speed control: in a plurality of described zones, reduce the rotating speed of being located at the described fan in the described zone that described noise/soundproof effect checkout gear is not set.
23. according to claim 21 or 22 described air conditioners, it is characterized in that,
When a plurality of described fans being carried out individually rotating speed control, described control device carries out following rotating speed control: in a plurality of described zones, improve the rotating speed of being located at the described fan in the described zone that is provided with described noise/soundproof effect checkout gear.
24. the described air conditioner of any one in 23 is characterized in that according to claim 14,
When a plurality of described fans being carried out individually rotating speed control, described control device carries out rotating speed control so that air quantity is controlled the mode that air quantity before equates with carrying out this rotating speed individually to a plurality of described fans.
25. an air conditioner is characterized in that, described air conditioner has:
Housing, it is formed with suction inlet on top, and subordinate's side is formed with blow-off outlet in front;
A plurality of Air Blast fans, it is arranged side by side the downstream of the described suction inlet in described housing;
Heat exchanger, it is arranged on the downstream of the described fan in the described housing and at the upstream side of described blow-off outlet, air and the cold-producing medium that blows out from described fan is carried out heat exchange;
Noise detection apparatus, it detects the noise that sends from described fan;
The control voice output, its output makes the control sound of described reducing noise;
The soundproof effect checkout gear, it detects the soundproof effect of described control sound;
Control sound generating apparatus, it makes described control voice output export described control sound according to the testing result of described noise detection apparatus and described soundproof effect checkout gear; And
Control device, it carries out rotating speed control individually to a plurality of described fans,
Described control device improves the rotating speed control at the rotating speed of the described fan of the two ends of described housing configuration, and is reduced in the rotating speed control of at least one party in the rotating speed control of rotating speed of the described fan beyond the described fan of two ends configuration of described housing.
26. air conditioner according to claim 25 is characterized in that,
A plurality of zones will be divided into by dividing plate in the described housing.
27. air conditioner according to claim 26 is characterized in that,
When a plurality of described fans being carried out individually rotating speed control, described control device carries out following rotating speed control: in a plurality of described zones, reduce the rotating speed of being located at the described fan in the described zone that described soundproof effect checkout gear is not set.
28. according to claim 26 or 27 described air conditioners, it is characterized in that,
When a plurality of described fans being carried out individually rotating speed control, described control device carries out following rotating speed control: in a plurality of described zones, improve the rotating speed of being located at the described fan in the described zone that is provided with described soundproof effect checkout gear.
29. the described air conditioner of any one in 28 is characterized in that according to claim 25,
When a plurality of described fans being carried out individually rotating speed control, described control device carries out rotating speed control so that air quantity is controlled the mode that air quantity before equates with carrying out this rotating speed individually to a plurality of described fans.
30. an air conditioner is characterized in that, described air conditioner has:
Housing, it is formed with suction inlet on top, and subordinate's side is formed with blow-off outlet in front;
A plurality of Air Blast fans, it is arranged side by side the downstream of the described suction inlet in described housing;
Heat exchanger, it is arranged on the downstream of the described fan in the described housing and at the upstream side of described blow-off outlet, air and the cold-producing medium that blows out from described fan is carried out heat exchange;
The control voice output, its output makes the control sound of the reducing noise that sends from described fan;
Noise/soundproof effect checkout gear, it detects described noise, and detects the soundproof effect of described control sound;
Control sound generating apparatus, it makes described control voice output export described control sound according to the testing result of described noise/soundproof effect checkout gear; And
Control device, it carries out rotating speed control individually to a plurality of described fans,
Described control device improves the rotating speed control at the rotating speed of the described fan of the two ends of described housing configuration, and is reduced in the rotating speed control of at least one party in the rotating speed control of rotating speed of the described fan beyond the described fan of two ends configuration of described housing.
31. air conditioner according to claim 30 is characterized in that,
A plurality of zones will be divided into by dividing plate in the described housing.
32. air conditioner according to claim 31 is characterized in that,
When a plurality of described fans being carried out individually rotating speed control, described control device carries out following rotating speed control: in a plurality of described zones, reduce the rotating speed of being located at the described fan in the described zone that described noise/soundproof effect checkout gear is not set.
33. according to claim 31 or 32 described air conditioners, it is characterized in that,
When a plurality of described fans being carried out individually rotating speed control, described control device carries out following rotating speed control: in a plurality of described zones, improve the rotating speed of being located at the described fan in the described zone that is provided with described noise/soundproof effect checkout gear.
34. the described air conditioner of any one in 33 is characterized in that according to claim 30,
When a plurality of described fans being carried out individually rotating speed control, described control device carries out rotating speed control so that air quantity is controlled the mode that air quantity before equates with carrying out this rotating speed individually to a plurality of described fans.
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