CN101821557B - Indoor unit for air conditioner - Google Patents

Indoor unit for air conditioner Download PDF

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Publication number
CN101821557B
CN101821557B CN2008801109413A CN200880110941A CN101821557B CN 101821557 B CN101821557 B CN 101821557B CN 2008801109413 A CN2008801109413 A CN 2008801109413A CN 200880110941 A CN200880110941 A CN 200880110941A CN 101821557 B CN101821557 B CN 101821557B
Authority
CN
China
Prior art keywords
heat exchanger
drain pan
pair
air
indoor unit
Prior art date
Application number
CN2008801109413A
Other languages
Chinese (zh)
Other versions
CN101821557A (en
Inventor
安尾晃一
芦田圭史
西口宪岐
Original Assignee
大金工业株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2007292765 priority Critical
Priority to JP2007-292765 priority
Priority to JP2008-245053 priority
Priority to JP2008245053A priority patent/JP5422953B2/en
Application filed by 大金工业株式会社 filed Critical 大金工业株式会社
Priority to PCT/JP2008/070029 priority patent/WO2009063770A1/en
Publication of CN101821557A publication Critical patent/CN101821557A/en
Application granted granted Critical
Publication of CN101821557B publication Critical patent/CN101821557B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0011Indoor units, e.g. fan coil units characterised by air outlets
    • F24F1/0014Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0043Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/005Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0043Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0059Indoor units, e.g. fan coil units characterised by heat exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0068Indoor units, e.g. fan coil units characterised by the arrangement of refrigerant piping outside the heat exchanger within the unit casing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26Refrigerant piping
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26Refrigerant piping
    • F24F1/32Refrigerant piping for connecting the separate outdoor units to indoor units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22Means for preventing condensation or evacuating condensate
    • F24F13/222Means for preventing condensation or evacuating condensate for evacuating condensate
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0018Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0033Indoor units, e.g. fan coil units characterised by fans having two or more fans

Abstract

An indoor unit for an air conditioner has a box-shaped body casing (1). A pair of air inlets (5) is arranged in the front face of the body casing (1). A pair of air outlets (7) is arranged on both sides of each air inlet (5). Inside the body casing (1) is formed a pair of air paths (6) leading from each air inlet (5) to the adjacent air outlets (7). Inside the body casing (1) are provided turbo fans (8) so as to correspond to respective air inlets (5), and on both sides of each turbo fan (8) is provided a pair of heat exchangers (9) so as to correspond to the pair of air outlets (7). Below the pair of heat exchangers (9) and the turbo fan (8) is provided a drain pan (15). In the drain pan (15) is received refrigerant piping (21a-21d) for connecting the pair of heat exchangers (9) to each other.

Description

Indoor unit for air conditioner
Technical field
The present invention relates to the indoor set that a kind of air regulator that can realize slim and densification is used.
Background technology
The air regulator in the past of normal operation is for example open in patent documentation 1 with wall-mounted indoor unit.This indoor set is provided with: two drain pans of front and back configurations, a plurality of λ (lambda) type on these drain pans of being bearing in intersect fin (cross fin) heat exchanger, be arranged on the cross flow fan between these heat exchangers.The wind that passes through in heat exchanger blows out to indoor via the vortex path.
But, in such structure, because the side by side configuration on fore-and-aft direction of heat exchanger and cross flow fan, so reducing there is boundary aspect the thickness of indoor set.
Therefore, the applicant has for example attempted seeking as far as possible the slimming of indoor set as shown in patent documentation 2,3 the indoor set.For example, indoor set is provided with the little centrifugal fan of axial length and a pair of heat exchanger that is configured in these centrifugal fan both sides.The aluminium cascade type that each heat exchanger is small-sized and rate of heat exchange is high.The air that sucks from the front surface side central portion of indoor set forwards blows out via the Air blowing mouth of these heat exchangers from both sides.By such structure, can seek the slimming of indoor set.
The heat exchanger of cascade type described above, for example shown in the above-mentioned patent documentation 3, collector device (header) and refrigerant gateway concentrate on the one-sided of heat exchanger.Therefore, arrange in the situation of heat exchanger in the mode that is in downside with the collector device, pipe arrangement concentrates on the bottom of indoor set, arranges in the situation of heat exchanger in the mode that is in upside with the collector device, and pipe arrangement concentrates on the top of indoor set.
But, when pipe arrangement is configured in top, in order to ensure the space that pipe arrangement is used, the size of indoor set is maximized.
In addition, during refrigeration at the condensed water drippage of the surface sweating of pipe arrangement.This water might be run on the works such as fan and fly out outside machine.In addition, when for Antidewing on pipe arrangement during the coiling heat-barrier material, the problem that exists the size of indoor set further to maximize.
Patent documentation 1: Japan opens flat 5-8316 communique in fact
Patent documentation 2: TOHKEMY 2006-29702 communique
Patent documentation 3: TOHKEMY 2006-336909 communique
Summary of the invention
The object of the invention is to provide a kind of indoor unit for air conditioner that can more effectively realize slimming and densification.
Mode of the present invention according to being used for addressing the above problem provides a kind of indoor unit for air conditioner, and it comprises: the shell of box; The air suction inlet that forms at the central portion of the front surface of this shell; The a pair of Air blowing mouth that forms in the both sides of the front surface of above-mentioned shell; What form in the inboard of above-mentioned shell leads to a pair of air flue of above-mentioned a pair of Air blowing mouth from above-mentioned air suction inlet; Be positioned at the upstream side of this a pair of air flue and the fan of the corresponding setting of above-mentioned air suction inlet; At the downstream of above-mentioned a pair of air flue and a pair of heat exchanger of the corresponding setting of above-mentioned a pair of Air blowing mouth; With with the interconnective refrigerant pipe arrangement of above-mentioned a pair of heat exchanger, above-mentioned indoor unit for air conditioner is characterised in that: also be included in the drain pan that the below of above-mentioned a pair of heat exchanger and fan arranges, take in above-mentioned refrigerant pipe arrangement in this drain pan.
By this structure, be discharged to drain pan at the dew of the Surface Creation of heat exchanger.Its result, the water of discharge can be recovered in the drain pan reliably.On the other hand, concentrate on a plurality of refrigerant pipe arrangements of downside setting of heat exchanger and miscellaneous part and be accommodated in uninterruptedly space in this drain pan.
Therefore, the extra pipe arrangement space that the refrigerant pipe arrangement is used needn't be guaranteed, more densification of indoor set main body can be made.
In addition, the dew of producing in the refrigerant pipe arrangement is not dispersed to the outside and be recovered in the drain pan.
In addition, preferred above-mentioned shell comprises backplate, and the above-mentioned backplate of above-mentioned drain pan and above-mentioned shell is integrally formed.
By such structure, with drain pan one assembled heat interchanger and fan and Component units.Form with Component units is taken in heat exchanger and fan in the enclosure, thereby can easily carry out manufacturing and assembling and even the maintenance of indoor set.
In addition, preferably between said fans and above-mentioned drain pan, be provided with demarcation strip.
By such structure, can avoid acting on the refrigerant pipe arrangement and causing the refrigerant in the refrigerant pipe arrangement to undergo phase transition from the wind of fan.In addition, so that the wind that blows out from fan is by the demarcation strip rectification, blow out swimmingly to the Air blowing mouth side of both sides.
In addition, can prevent from blowing out from blow-off outlet by drain pan from the obstructed over-heat-exchanger of the wind of fan.
Therefore, the wind pushing performance of indoor set improves.
In addition, preferred above-mentioned a pair of heat exchanger configures in the mode of intersecting respectively with above-mentioned a pair of air flue and tilt in different directions from each other.
By such structure, the heat exchange area that indoor set is required can be guaranteed, and the thickness of indoor set can be reduced as much as possible, can further realize slimming.
Preferably the both sides in above-mentioned drain pan are provided with the positioning element that above-mentioned each heat exchanger is positioned.
By such structure, during to above-mentioned drain pan assembled heat interchanger, assembling becomes very easy, makes efficient and improves.
In addition, preferably be formed with the stage portion that positions for to above-mentioned each heat exchanger in the bottom of above-mentioned drain pan.
By such structure, during to above-mentioned drain pan assembled heat interchanger, assembling becomes very easy, makes efficient and improves.
In addition, the stage portion of preferred above-mentioned drain pan is divided by the narrow width part of the bottom of the wide cut on the top of above-mentioned drain pan part and above-mentioned drain pan and is formed, and in a narrow margin partly the outer surface in the bottom of above-mentioned drain pan is provided with heat-barrier material.
According to such structure, the setting of heat-barrier material and installation become easily, can more effectively apply flexibly stage portion.
Description of drawings
Fig. 1 is the stereogram of integral body of the indoor unit for air conditioner of expression the first embodiment of the present invention.
Fig. 2 is the profile that the indoor set of the Fig. 1 under the state of radiator grille is opened in expression.
Fig. 3 is the flat sectional drawing of the indoor set of presentation graphs 1.
Fig. 4 is the stereogram of internal structure of the indoor set of presentation graphs 1.
Fig. 5 is the stereogram of structure of main heat exchanger of the indoor set of presentation graphs 1.
Fig. 6 is the stereogram of structure of secondary heat exchanger of the indoor set of presentation graphs 1.
Fig. 7 is the stereogram of structure of refrigerant pipe arrangement of the indoor set of presentation graphs 1.
Fig. 8 is the stereogram that the refrigerant pipe arrangement of presentation graphs 7 is arranged on the state in the drain pan.
Fig. 9 is the plane of structure of localization part of heat exchanger of the indoor set of presentation graphs 1.
Figure 10 is the profilograph of the localization part of presentation graphs 9.
Figure 11 is the profilograph that expression is observed from the side of the localization part of Fig. 9.
Figure 12 is the profilograph of indoor set from observing previously that is provided with the Fig. 1 under the state of demarcation strip.
Figure 13 is the plane of localization part of heat exchanger of the indoor unit for air conditioner of expression the second embodiment of the present invention.
Figure 14 is the profilograph of the localization part of expression Figure 13.
Figure 15 is the profilograph that the localization part of Figure 13 is observed from the side.
Figure 16 is the profile of structure of heat-barrier material of the lower face side of the expression localization part that sticks on Figure 13.
Figure 17 is the stereogram of an example (top set-up mode) of the refrigerant pipe arrangement arrangement of expression indoor unit for air conditioner of the present invention.
Figure 18 is the stereogram of whole interior structure of the indoor unit for air conditioner of expression the 3rd embodiment of the present invention.
Figure 19 is the stereogram of structure of refrigerant pipe arrangement of the indoor set of expression Figure 18.
Figure 20 is the stereogram that the refrigerant pipe arrangement of expression Figure 19 is arranged on interior, identical with Fig. 8 state (integrated state) of drain pan.
The specific embodiment
(the first embodiment)
With reference to Fig. 1~Figure 12, the structure of the indoor unit for air conditioner of the first embodiment of the present invention is described.
Such as Fig. 1~shown in Figure 3, indoor unit for air conditioner is paired (twin) type that is made of a pair of indoor unit that is set up in parallel.Each indoor unit is provided with a desk fan and is configured in respectively two heat exchangers of these fan both sides.
Indoor unit for air conditioner is provided with grows crosswise and the main body cover 1 of the flat boxlike that front and back are thin.This main body cover 1 is made of back panel (backplate) 1a, two side panel (side panel) 1b, front panel (front panel) 1c, upper surface panel (top board) 1d and base panel (base plate) 1e.Back panel 1a consists of the installed surface of the fan electromotor 8b of turbofan 8 described later.
Panel 1b, 1c among these panels 1a, 1b, 1c, 1d, the 1e except back panel 1a, 1d, 1e are made of a continuous sheet material.
In addition, therefore a pair of indoor unit left-right symmetry that is set up in parallel describes the structure of an indoor unit.
As shown in Figure 3, be formed with the air suction inlet 5 of the circle of (bellmouth) function that has suction inlet at the central portion of the above-mentioned front panel 1c that consists of an indoor unit.In addition, in the inboard of air suction inlet 5, be provided with the little turbofan of depth size 8 as centrifugal blower.
This turbofan 8 comprises mainboard 8d, guard shield 8c, is configured in the multi-disc blade 8a (impeller) between both 8c, the 8d.
In addition, the both sides of the above-mentioned air suction inlet 5 of panel 1c are formed with respectively the width with regulation and a pair of rectangular Air blowing mouth 7 that extends in vertical direction in front.About a pair of indoor unit that is set up in parallel, two the Air blowing mouths 7 adjacent at the central portion of main body cover 1 form shared blow-off outlet.
In aforementioned body shell 1, be formed with two air flues 6 from the air suction inlet 5 of above-mentioned suction inlet structure to Air blowing mouth 7 branches of above-mentioned both sides.In this air flue 6, be provided with the turbofan corresponding with guard shield 8c 8 in the behind of above-mentioned air suction inlet 5.In addition, turbofan 8 has the embedding of clearance ground for air suction inlet 5.Turbofan 8 is installed on the back panel 1a of aforementioned body shell 1 via the fan electromotor 8b that is located at the impeller inboard.
This back panel 1a is for example shown in Figure 4 to have a necessary height H, with the backboard of the drain pan 15 that is positioned at the below 16 integrally formed (back panel 1a forms by making backboard 16 as same sheet material extend up setting).
As shown in Figure 3, in air flue 6, be respectively arranged with a pair of heat exchanger 9 in the both sides of this turbofan 8.Each heat exchanger 9 is on the position corresponding with each the Air blowing mouth 7 that is positioned at air flue 6 downstreams.A pair of heat exchanger 9 on each of a pair of air flue 6 that the above-mentioned central portion in aforementioned body shell 1 extends to both sides, with intersects with air flue 6 and on different directions from each other significantly the mode of inclination configure.
Because a pair of like this heat exchanger 9 significantly arranges obliquely with respect to air flue 6, so can be clear and definite according to Fig. 3, can effectively guarantee necessary heat exchange area, and reduce as much as possible the thickness (depth size) of the fore-and-aft direction of indoor set main body.Therefore, can further realize the slimming of indoor set main body.
In addition, in the present embodiment, each heat exchanger 9, for example shown in Figure 5, consisted of by the aluminium cascade type heat exchanger that is provided with flat heat pipe (antipriming pipe) 9a and flat heat transmission fin (for example corrugated fin (コ Le ゲ one ト Off イ Application)) compactness 9b, that have high heat conductivility.And, be provided with a pair of refrigerant collector device 20 (20a, 20b) in the lower side of each heat exchanger 9.At the concentrated a plurality of refrigerant pipe arrangement 21a~21d (with reference to Fig. 7) that are connected with of these refrigerant collector devices 20 (20a, 20b).
In addition, above-mentioned each heat exchanger 9 is Fig. 4 and Fig. 9~shown in Figure 11 for example, and the refrigerant collector device 20 of its lower end is supported with the states that are configured in the drain pan 15.In detail, refrigerant collector device 20 uses positioning element 22,23 to be accurately positioned on the position of regulation and is fixed at the bottom surface of drain pan 15 15a.Thus, heat exchanger 9 is to be supported with drain pan 15 integrated modes.
Positioning element 22,23 is made of highly low in vertical direction positioning element 22b, 23b and this positioning element of aspect ratio 22b, positioning element 22a, 23a that 23b is high respectively.Positioning element 22b, 23b have the taper surface of the inclination angle setting usefulness of heat exchanger 9.Between the inner face of these positioning elements 22a, 23a, 22b, 23b and drain pan 15, be formed with the end of the refrigerant collector device 20 corresponding with each corner part of front and back of above-mentioned heat exchanger 9 and recess 22c, the 23c of chimeric fixedly peripheral part.In addition, the inclination angle of recess 22c, 23c and set heat exchanger 9 forms accordingly.
Therefore, undertaken chimericly by the refrigerant collector device 20 of above-mentioned heat exchanger 9 is fallen into this recess 22c, 23c such as Fig. 9~shown in Figure 11, can with stable state heat exchanger 9 be arranged to desirable height and desirable inclination angle simply.
In addition, in the present embodiment, Fig. 4, shown in Figure 7 for example plays the condenser effect, plays a pair of supercooling heat exchanger 19 of evaporimeter effect when cooling operation when being arranged on warming operation as required.The roughly balanced configuration between the heat exchanger 9 of above-mentioned turbofan 8 and both sides of a pair of supercooling heat exchanger 19.Each supercooling heat exchanger 19 constitutes the band fin heat exchanger of small cylinder shape as shown in Figure 6, and it has the simple structure of coiling ridge fin on a heat-exchange tube 21d continuous as the refrigerant pipe arrangement (ス パ イ Application Off イ Application) 19a.Each supercooling heat exchanger 19 arranges in the mode that heat exchanger tube 21d extends in vertical direction.
On aforementioned body shell 1, pasting respectively vacuum heat insulation material 10 with the inner face of above-mentioned each heat exchanger 9 opposed back panel 1a, side panel 1b and front panel 1c.Vacuum heat insulation material 10 is flat shape, and its inside is vacuum.This vacuum heat insulation material 10 is for example described later shown in Figure 16, is made of the plastic hollow form sheet material 10a of the mineral wool 10b that fill to keep shape to use in the inboard and the aluminium foil 10c that sticks on the periphery of this sheet material 10a.
In the present embodiment, described above small-sized and have high heat exchanger effectiveness the aluminium cascade type heat exchanger 9 respectively tilted configuration in the both sides of turbofan 8.The air that sucks from the air suction inlet 5 of the central portion of front side forwards blows out from the Air blowing mouth 7 of both sides.Thus, can realize as much as possible the slimming of indoor set main body.In addition, (remove backboard 16 parts such as Fig. 4 (from the figure of front face side observation) and Fig. 8, figure from the rear side observation) shown in, is being provided with the ware type drain pan 15 (bottom surface 15a) that in whole indoor set main body, extends below a pair of heat exchanger 9 and the turbofan 8.And, utilizing the free space with prescribed depth in this drain pan 15, a plurality of refrigerant pipe arrangement 21a~21d that will be connected with each heat exchanger 9 are accommodated in the space in the drain pan 15.
Namely, in the heat exchanger 9 of above-mentioned such cascade type, as mentioned above, the gateway concentrated setting of refrigerant collector device 20 and refrigerant pipe arrangement 21a~21d is one-sided heat exchanger 9.Therefore, the mode that is positioned at downside with refrigerant collector device 20 as shown in Figure 7 arranges in the situation of heat exchanger 9, and refrigerant pipe arrangement 21a~21d concentrates on the downside of heat exchanger 9.On the other hand, the mode that is positioned at upside with refrigerant collector device 20 as shown in figure 17 arranges in the situation of heat exchanger 9, and refrigerant pipe arrangement 21a~21d concentrates on the upside of heat exchanger 9.And, when refrigerant collector device 20 is configured in upside, in order to ensure the pipe arrangement space, the size of indoor set main body is maximized.In addition, might fall at when refrigeration water droplet of dewfall on the refrigerant pipe arrangement, run into the works such as fan and outside machine, fly out.In addition, when for Antidewing on the refrigerant pipe arrangement during coiling heat-barrier material, the problem that exists the size of indoor set further to maximize.
Therefore, in the present embodiment, in order to solve such problem, for example such as Fig. 4, shown in Figure 8, below a pair of heat exchanger 9 of turbofan 8 and turbofan 8, be provided with drain pan 15.In addition, in this drain pan 15, taken in above-mentioned a pair of heat exchanger 9 interconnective refrigerant pipe arrangement 21a~21d.Thus, owing in drain pan 15, take in whole pipe arrangements, so above-mentioned problem is solved.
By such structure, discharge to drain pan 15 at the condensed water of the surface sweating of heat exchanger 9.Therefore, can be reliably the water of dewfall be recovered in the drain pan 15.On the other hand, a plurality of refrigerant pipe arrangement 21a~21d that concentrate on the downside of heat exchanger 9 utilize the free spaces in this drain pan 15 to take in and can not interfere with miscellaneous part.
Therefore, owing to need not guarantee unnecessary pipe arrangement space, so can make indoor set main body densification.
In addition, the dew of the upper generation of refrigerant pipe arrangement 21a~21d can not disperse to the outside yet, can directly be recovered in the drain pan.
And in above structure, as mentioned above, drain pan 15 is integrally formed with the back panel 1a of indoor set shell.
Like this, because drain pan 15 is integrally formed with the back panel 1a of the indoor set shell that uses in the installation of turbofan 8, so by heat exchanger 9 and turbofan 8 are assembled for drain pan 15 one, can make drain pan 15, heat exchanger 9 and turbofan 8 Component units.Therefore, can be with the form of such densification that the main body cover 1 that drain pan 15, heat exchanger 9 and turbofan 8 be accommodated in indoor set is interior and integrated.Its result can easily carry out assembling and manufacturing and even the maintenance of indoor set.
But, adopt in the situation of such structure, need to someways separate the air chamber of above-mentioned turbofan 8 and the space in the drain pan 15.Separate by this, will be from the wind of turbofan 8 towards swimmingly rectification of Air blowing mouth 7, and in order to prevent the phase transformation of refrigerant, need to avoid wind to act on refrigerant pipe arrangement 21a~21d.
In addition, need to prevent from the obstructed over-heat-exchanger 9 of the wind of turbofan 8 but blow out from Air blowing mouth 7 by drain pan 15.
Therefore, in order to tackle this demand, in the present embodiment, more as shown in figure 12, (be provided with demarcation strip 17 between and the refrigerant pipe arrangement 21a~21d) at above-mentioned turbofan 8 and heat exchanger 9 and drain pan 15.Thus, can avoid causing because of the wind from turbofan 8 cooling of refrigerant pipe arrangement 21a~21d.In addition, suitably corresponding with the shape of turbofan 8 by the shape that makes as required this demarcation strip 17, can improve rectification function, improve as much as possible wind pushing performance.In the present embodiment, demarcation strip 17 is tabulars, but also can bend to circular-arc or vortex shape.
According to such structure, stop the wind from turbofan 8 and heat exchanger 9 to act on refrigerant pipe arrangement 21a~21d by demarcation strip 17.Therefore, can prevent the phase transformation of the refrigerant among refrigerant tube 21a~21d.
In addition, because this demarcation strip 17 can be with the wind direction Air blowing mouth 7 swimmingly rectifications from turbofan 8, so the wind pushing performance of turbofan 8 improves, the heat exchanger effectiveness of heat exchanger 9 also improves.
In addition, can prevent from directly blowing out from Air blowing mouth 7 by drain pan 15 from the obstructed over-heat-exchanger 9 of the wind of turbofan 8.
In addition, in the present embodiment, for example Fig. 1 and shown in Figure 2 arranges radiator grille 2,3 in the front side of above-mentioned front panel 1c as required.In this case, for example two radiator grilles 2 of central authorities cover the Air blowing mouth 7 of above-mentioned air suction inlet 5 and central authorities, and two radiator grilles 3 of both sides cover respectively each Air blowing mouth 7 of main body cover 1 both sides.
The radiator grille 2 of central authorities is supported in the mode that can open and close selectively on fore-and-aft direction (or the direction that tilts with respect to fore-and-aft direction) respectively by for example support unit 21 as linkage.Cover in front under 2 states of opening, top and the lower direction air suction inlet 5 from vertical direction is taken into air as shown in Figure 2.In addition, the Air blowing mouth that shares 7 of central authorities is open, and air is blown.
With respect to this, the radiator grille 3 of both sides is supported in the mode that can open and close selectively by hinge arrangement.Cover in front under 3 states of opening, the Air blowing mouth 7 of the both sides of shell is open, and air is blown.
On the other hand, when whole radiator grille 2,3 is closed as shown in Figure 1, a whole simple slim rack (cabinet) structure with smooth front surface that forms of indoor set.
(the second embodiment)
The structure of the indoor unit for air conditioner of the second embodiment of the present invention then, is described with reference to Figure 13~Figure 16.
In the second embodiment, be formed with stage portion 15b this point at drain pan 15 different from the first embodiment.In detail, in drain pan 15, be equipped with the positioning element 24,25 that usefulness is set at the inclination angle, be formed with for example Figure 13~stage portion 15b shown in Figure 15 in the bottom of drain pan 15.The upper aspect of this stage portion 15b plays the function of the positioning element of short transverse.Stage portion 15b is divided by the narrow width part of the bottom of the wide cut on the top of drain pan 15 part and drain pan 15 and forms.On the other hand, the in a narrow margin outer surface (outer surface of the bottom of drain pan 15) of part at this stage portion 15b is provided with the thin as far as possible vacuum heat insulation material of thickness for example shown in Figure 16 10.
This vacuum heat insulation material 10 for example consists of by the plastic hollow form sheet material 10a that fill to keep the mineral wool 10b that shape uses in the inboard and the aluminium foil 10c that sticks on the periphery of this sheet material 10a.
On drain pan 15, usually paste heat-barrier material as the dewfall countermeasure, but in slim indoor set as described above, present situation is that the thickness of this heat-barrier material also will reduce (the particularly thickness of front side and rear side).Therefore, replace positioning element 22b, the 23b of above-mentioned the first embodiment, be provided with stage portion 15b at drain pan 15.Thus, stage portion 15b plays the function of the detent mechanism of short transverse.In addition, paste heat-barrier material 10 by the outer surface at this stage portion 15b, so that heat-barrier material 10 does not bloat the outside of the outer surface of drain pan 15 as far as possible.
Structure and the effect of other structures of the second embodiment and effect and above-mentioned the first embodiment are identical.
(the 3rd embodiment)
Then, with reference to Figure 18~Figure 20, the structure of the indoor unit for air conditioner of the 3rd embodiment of the present invention is described.
In the 3rd embodiment, be characterised in that the supercooling heat exchanger 19 that the supercooling heat exchanger 19 of the structure of above-mentioned the first embodiment is changed to the flat intersection fin coil type of Figure 18 for example~shown in Figure 20 from the heat exchanger of band ridge fin cylindraceous (spine fin).
By such structure, the heat exchanger effectiveness in the time of can further improving supercooling.
In detail, intersect the supercooling heat exchanger 19 of fin coil type, have the supercooling heat exchanger more finned than above-mentioned ridge thin the thickness of Duoing.Therefore, nature can solve the problem on the space, and the crushing of turbofan 8 is low, and heat-exchange capacity increases more than 50% under identical ventilation resistance value.Therefore, the heat exchanger effectiveness in the time of can making supercooling improves.
In addition, in the situation of the supercooling heat exchanger 19 of like this employing intersection fin coil type, can use the refrigerant pipe arrangement 21d with U shape tubular construction.Therefore, can whole refrigerant pipe arrangement 21a~21d adjacent supercooling heat exchanger 19 interconnective refrigerant pipe arrangement 21d, that extend from each refrigerant collector device 20 be configured in the drain pan 15 comprising.Its result, generation can be accommodated in whole refrigerant pipe arrangement 21a~21d in the drain pan 15, can make the more advantage of miniaturization of indoor set.And, can prevent from fully flying out outside machine at the dew that the surface of refrigerant pipe arrangement 21a~21d produces.
On the other hand, in the supercooling heat exchanger 19 of intersection fin coil type, the plate wing is vertical with heat pipe.In the situation that this supercooling heat exchanger 19 is arranged with vertical state, plate wing partial configuration becomes level, so have some problems in drainage.
Therefore, in order to improve the drainage of this plate wing, this supercooling heat exchanger 19 is not to extend along the vertical direction straight line to arrange, but preferably with in the mode that slightly tilts in the horizontal direction with respect to vertical direction with desirable gradient setting.
Structure and the effect of other structures of the 3rd embodiment and effect and above-mentioned the first embodiment are identical.

Claims (6)

1. an indoor unit for air conditioner comprises: the shell of box; The air suction inlet that forms at the central portion of the front surface of this shell; The a pair of Air blowing mouth that forms in the both sides of the front surface of described shell; What form in the inboard of described shell leads to a pair of air flue of described a pair of Air blowing mouth from described air suction inlet; Be positioned at the upstream side of this a pair of air flue and the fan of the corresponding setting of described air suction inlet; At the downstream of described a pair of air flue and a pair of heat exchanger of the corresponding setting of described a pair of Air blowing mouth; With with the interconnective refrigerant pipe arrangement of described a pair of heat exchanger, described indoor unit for air conditioner is characterised in that:
Also be included in the drain pan of the below setting of described a pair of heat exchanger and fan, in this drain pan, take in described refrigerant pipe arrangement, be provided with demarcation strip between described fan and described drain pan, this demarcation strip extends in the lower horizontal of described fan and described heat exchanger.
2. indoor unit for air conditioner as claimed in claim 1, it is characterized in that: described shell comprises backplate, the described backplate of described drain pan and described shell is integrally formed.
3. indoor unit for air conditioner as claimed in claim 1 or 2 is characterized in that: described a pair of heat exchanger configures in the mode of intersecting respectively with described a pair of air flue and tilt in different directions from each other.
4. indoor unit for air conditioner as claimed in claim 1 or 2, it is characterized in that: the both sides in described drain pan are provided with the positioning element that described each heat exchanger is positioned.
5. indoor unit for air conditioner as claimed in claim 1 or 2 is characterized in that: be formed with the stage portion that positions for to described each heat exchanger in the bottom of described drain pan.
6. indoor unit for air conditioner as claimed in claim 5, it is characterized in that: the stage portion of described drain pan is divided by the narrow width part of the bottom of the wide cut on the top of described drain pan part and described drain pan and is formed, and in a narrow margin partly the outer surface in the bottom of described drain pan is provided with heat-barrier material.
CN2008801109413A 2007-11-12 2008-11-04 Indoor unit for air conditioner CN101821557B (en)

Priority Applications (5)

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JP2007292765 2007-11-12
JP2007-292765 2007-11-12
JP2008-245053 2008-09-25
JP2008245053A JP5422953B2 (en) 2007-11-12 2008-09-25 Indoor unit for air conditioner
PCT/JP2008/070029 WO2009063770A1 (en) 2007-11-12 2008-11-04 Indoor unit for air conditioner

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CN101821557A CN101821557A (en) 2010-09-01
CN101821557B true CN101821557B (en) 2013-04-24

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US (1) US20100199700A1 (en)
EP (1) EP2208946B1 (en)
JP (1) JP5422953B2 (en)
KR (1) KR20100056556A (en)
CN (1) CN101821557B (en)
AU (1) AU2008321997B2 (en)
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WO (1) WO2009063770A1 (en)

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AU2008321997B2 (en) 2011-03-17
JP5422953B2 (en) 2014-02-19
JP2009139078A (en) 2009-06-25
EP2208946A4 (en) 2014-07-02
KR20100056556A (en) 2010-05-27
EP2208946B1 (en) 2017-09-06
AU2008321997A1 (en) 2009-05-22
WO2009063770A1 (en) 2009-05-22
CN101821557A (en) 2010-09-01
ES2642870T3 (en) 2017-11-20
US20100199700A1 (en) 2010-08-12
EP2208946A1 (en) 2010-07-21

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