EP2416074A2 - Unité intérieure d'appareil de climatisation d'air et appareil de climatisation d'air - Google Patents

Unité intérieure d'appareil de climatisation d'air et appareil de climatisation d'air Download PDF

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Publication number
EP2416074A2
EP2416074A2 EP11176224A EP11176224A EP2416074A2 EP 2416074 A2 EP2416074 A2 EP 2416074A2 EP 11176224 A EP11176224 A EP 11176224A EP 11176224 A EP11176224 A EP 11176224A EP 2416074 A2 EP2416074 A2 EP 2416074A2
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EP
European Patent Office
Prior art keywords
air
wind direction
indoor unit
direction control
blow
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP11176224A
Other languages
German (de)
English (en)
Other versions
EP2416074A3 (fr
EP2416074B1 (fr
Inventor
Mitsuhiro Shirota
Tomoya Fukui
Shoji Yamada
Kenichi Sakoda
Kunihiko Kaga
Takeshi Mori
Satoshi Michihata
Akira Takamori
Shinichi Suzuki
Yoshinori Tanikawa
Takashi Matsumoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP2416074A2 publication Critical patent/EP2416074A2/fr
Publication of EP2416074A3 publication Critical patent/EP2416074A3/fr
Application granted granted Critical
Publication of EP2416074B1 publication Critical patent/EP2416074B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • 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
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy

Definitions

  • the present invention relates to an indoor unit having a fan and a heat exchanger housed in a casing and an air-conditioning apparatus having the indoor unit.
  • an air-conditioning apparatus (more specifically, an indoor unit) having a vertical wind direction control vane divided into three parts and a horizontal wind direction control vane and configured to control the direction of an airflow blown out from a blow-out port using the vertical wind direction control vane divided into three parts and the horizontal wind direction control vane has been proposed. More specifically, two parts of the vertical wind direction control vane other than the central part are controlled in the closing direction of the blow-out port and the horizontal wind direction control vane is controlled to throttle the airflow blown out from the blow-out port, so that the velocity of the airflow blown out from the center of the blow-out port is increased. Accordingly, people present in a room are provided with more comfort (for example, see Japanese Unexamined Patent Application Publication No. 2001-153428 ) .
  • the conventional air-conditioning apparatus controls the direction of the airflow blown out from the blow-out port using only the vertical wind direction control vane divided into three parts and the horizontal wind direction control vane. Therefore, distribution of airflows different in air volume individually to different places in the room were unfortunately not possible.
  • an object of the invention to provide an indoor unit of an air-conditioning apparatus, which is capable of distributing airflows different in air volume individually to different places in a room, and an air-conditioning apparatus having such an indoor unit.
  • An indoor unit of an air-conditioning apparatus includes: a casing having a suction port formed on an upper portion and a blow-out port formed on a lower side of a front surface portion; a plurality of axial-flow or mixed-flow fans provided in parallel on the downstream side of the suction port in the casing; a heat exchanger provided on the downstream side of each fans and on the upstream side of each blow-out port in the casing and configured to exchange heat between air blown out from the fan and a refrigerant; a horizontal wind direction control vane provided at the blow-out port and configured to control the horizontal direction of an airflow blown out from the blow-out port; a vertical wind direction control vane provided at the blow-out port and configured to control the vertical direction of the airflow blown out from the blow-out port; and a human detection sensor configured to detect the position of a person present in a room, in which the air volume, the orientation of the horizontal wind direction control vane, and the orientation of the vertical wind direction control vane of each
  • the air-conditioning apparatus includes the indoor unit described above.
  • the situation in the room (for example, where a person is present) can be detected by the human detection sensor. Then, by controlling the air volume, the orientation of the horizontal wind direction control vane, and the orientation of the vertical wind direction control vane of each of the fans according to detected results of the human detection sensor, airflows of different air volumes can be distributed individually to different places in the room. Controlling each air volume of the fans does not mean to differ each of the air volumes of each fans. As a matter of course, the air volumes of some fans may be the same.
  • Fig. 1 is a vertical cross-sectional view illustrating an indoor unit of an air-conditioning apparatus according to Embodiment 1 of the invention.
  • Fig. 2 is a perspective view illustrating the indoor unit of the air-conditioning apparatus according to Embodiment 1 of the invention.
  • Fig. 3 is a front cross-sectional view illustrating the indoor unit according to Embodiment 1 of the invention.
  • Fig. 4 is a perspective view illustrating the indoor unit according to Embodiment 1 of the invention.
  • Fig. 5 is an explanatory drawing illustrating each light distribution view angles of light-receiving elements in an infrared ray sensor according to Embodiment 1 of the invention.
  • Fig. 6 is a perspective view illustrating a housing for accommodating the infrared ray sensor according to Embodiment 1 of the invention.
  • Fig. 7A is an explanatory drawing illustrating a turning state of the infrared ray sensor according to Embodiment 1 of the invention.
  • Fig. 7B is an explanatory drawing illustrating another turning state of the infrared ray sensor according to Embodiment 1 of the invention.
  • Fig. 7C is an explanatory drawing illustrating still another turning state of the infrared ray sensor according to Embodiment 1 of the invention.
  • Fig. 8 is an explanatory drawing illustrating vertical light distribution view angles in a vertical cross section of the infrared ray sensor according to Embodiment 1 of the invention.
  • Fig. 9 shows an example of heat image data obtained by the infrared ray sensor according to Embodiment 1.
  • Fig. 10 shows an example in which the indoor unit according to Embodiment 1 divides a floor surface area in a room into a plurality of area blocks.
  • Fig. 11 is a front cross-sectional view illustrating the indoor unit according to Embodiment 2 of the invention.
  • Fig. 12 is a perspective view illustrating the indoor unit according to Embodiment 2 of the invention.
  • Fig. 13 is a front cross-sectional view illustrating the indoor unit according to Embodiment 3 of the invention.
  • Fig. 14 is a perspective view illustrating the indoor unit according to Embodiment 3 of the invention.
  • Fig. 15 is a perspective view of the indoor unit according to Embodiment 1 of the invention when viewed from the front right side.
  • Fig. 16 is a perspective view of the indoor unit according to Embodiment 1 of the invention when viewed from the rear right side.
  • Fig. 17 is a perspective view of the indoor unit according to Embodiment 1 of the invention when viewed from the front left side.
  • Fig. 18 is a perspective view illustrating a drain pan according to Embodiment 1 of the invention.
  • Fig. 19 is a vertical cross-sectional view illustrating a dew condensation forming position of the indoor unit according to Embodiment 1 of the invention.
  • Fig. 20 is a configuration drawing illustrating a signal processing device according to Embodiment 1 of the invention.
  • Fig. 21 is a vertical cross-sectional view illustrating another example of the indoor unit of the air-conditioning apparatus according to Embodiment 1 of the invention.
  • Fig. 1 is a vertical cross-sectional view illustrating an indoor unit (referred to as "indoor unit 100") of an air-conditioning apparatus according to Embodiment 1 of the invention.
  • Fig. 2 is a perspective view illustrating the indoor unit shown in Fig. 1 .
  • the left side in Fig. 1 is defined as the front side of the indoor unit 100. Referring now to Fig. 1 and Fig. 2 , a configuration of the indoor unit 100 will be described.
  • the indoor unit 100 supplies air-conditioned air to an area to be air-conditioned such as an indoor space by utilizing a refrigerating cycle circulating a refrigerant.
  • the indoor unit 100 mainly includes a casing 1 formed with suction ports 2 for taking in indoor air and a blow-out port 3 for supplying air-conditioned air to the area to be air-conditioned, fans 20 housed in the casing 1 and configured to take in the indoor air from the suction ports 2 and blow out the air-conditioned air from the blow-out port 3, and heat exchangers 50 disposed in air paths from the fans 20 to the blow-out port 3 and configured to generate the air-conditioned air by heat exchange between the refrigerant and the indoor air.
  • each of the air paths (an arrow Z in Fig.
  • the suction ports 2 are formed so as to open at an upper portion of the casing 1.
  • the blow-out port 3 is formed so as to open at a lower portion of the casing 1 (more specifically, on the lower side of a front surface portion of the casing 1).
  • the fans 20 are each disposed on the downstream side of the suction ports 2 and the upstream side of the heat exchangers 50, and, for example, axial-flow fans or mixed-flow fans are employed.
  • the indoor unit 100 is provided with a control device 281 configured to control the rotation speeds of the fans 20, the orientations (angles) of a later described vertical wind direction control vane 70 and a horizontal wind direction control vane 80 (if an auxiliary vertical wind direction control vane 71, described later, is provided, the auxiliary vertical wind direction control vane 71 is also included), and so on.
  • a control device 281 configured to control the rotation speeds of the fans 20, the orientations (angles) of a later described vertical wind direction control vane 70 and a horizontal wind direction control vane 80 (if an auxiliary vertical wind direction control vane 71, described later, is provided, the auxiliary vertical wind direction control vane 71 is also included), and so on.
  • illustration of the control device 281 may be omitted in drawings illustrating Embodiment 1 and other embodiments described later.
  • the fans 20 are provided on the upstream side of the heat exchangers 50 in the indoor unit 100 as configured above, generation of a swirl flow of air blown out from the blow-out port 3 and occurrence of variation in wind velocity distribution can be restrained in comparison with the indoor unit of the conventional air-conditioning apparatus having the fan 20 at the blow-out port 3. Therefore, blowing of comfortable air to the area to be air-conditioned is achieved. Since no complex structure such as a fan is provided at the blow-out port 3, measures against dew condensation formed at a boundary between warm air and cool air at the time of a cooling operation can easily be implemented. In addition, since a fan motor 30 is not exposed to air-conditioned air, namely, cool air or warm air, a long operational life can be provided.
  • the indoor unit of the air-conditioning apparatus has limitations in terms of installation space, so the fan cannot be increased in size in many cases. Therefore, in order to obtain a desired air volume, a plurality of fans of moderate sizes are arranged in parallel.
  • three fans 20 are arranged in parallel along the longitudinal direction of the casing 1 (that is, along the longitudinal direction of the blow-out port 3) as shown in Fig. 2 .
  • three to four fans 20 are preferably provided.
  • substantially equivalent air volumes can be obtained from all of the fans 20 by configuring all of the fans 20 to have an identical shape and so as to operate all with the same rotation speed.
  • a duct-like bell mouth 5 is arranged around each of the fans 20.
  • the bell mouth 5 is intended to guide intake air into and exhaust air out of the fans smoothly.
  • the bell mouth 5 according to Embodiment 1 has a substantially circular shape in plan view. In the vertical cross section, the bell mouth 5 according to Embodiment 1 has the following shape.
  • An end portion of an upper portion 5a has a substantially circular arc shape extending outward and upward.
  • a center portion 5b is a straight portion of the bell mouth 5, having a constant diameter.
  • An end portion of a lower portion 5c has a substantially circular arc shape extending outward and downward.
  • An end portion (a circular arc portion on the suction side) of the upper portion 5a of the bell mouth 5 forms the suction port 2.
  • the bell mouth 5 may be formed integrally with, for example, the casing 1 in order to reduce the number of components and improve the strength. It is also possible, for example, to improve maintainability by modularizing the bell mouth 5, the fan 20, and the fan motor 30 so as to be detachably attachable to the casing 1.
  • the end portion (the circular arc portion on the suction side) of the upper portion 5a of the bell mouth 5 is formed so as to have a uniform shape in terms of the circumferential direction of an opening surface of the bell mouth 5.
  • the bell mouth 5 does not have structures such as a notch or a rib in the direction of rotation about an axis of rotation 20a of the fan 20, and has a uniform shape in terms of axial symmetry.
  • the end portion (the circular arc portion on the suction side) of the upper portion 5a of the bell mouth 5 has a uniform shape with respect to the rotation of the fan 20, and hence a uniform flow of the suction flow of the fan 20 is also realized. Therefore, the noise generated by a drift of the suction flow of the fan 20 can be decreased.
  • the indoor unit 100 according to Embodiment 1 is provided with partitioning panels 90 between the adjacent fans 20.
  • These partitioning panels 90 are installed between the heat exchangers 50 and the fans 20.
  • the air paths between the heat exchangers 50 and the fans 20 are divided into a plurality of air paths (three in Embodiment 1).
  • the partitioning panels 90 are arranged between the heat exchangers 50 and the fans 20, so each end portion that is in contact with the heat exchanger 50 has a shape conforming to the shape of the heat exchanger 50. More specifically, as shown in Fig.
  • the heat exchanger 50 is arranged so as to form a substantially A-shape in a vertical cross section from the front side to the back side of the indoor unit 100 (that is, the vertical cross section when viewing the indoor unit 100 from the right side, referred to as "right vertical cross-section", hereinafter). Therefore, an end portion of each of the partitioning panels 90 on the side of the heat exchanger 50 also has a substantially A-shape.
  • the position of an end portion of each of the partitioning panels 90 on the side of the fan 20 may be determined as follows, for example. When the adjacent fans 20 are positioned sufficiently away from each other to avoid influencing each other on the suction side, the end portion of each of the partitioning panels 90 on the side of the fan 20 may need only be extend to an exit surface of the fan 20.
  • the end portion of each of the partitioning panels 90 on the side of the fan 20 may extend up to the upstream side of the fan 20 (the suction side) so that the adjacent air paths do not influence each other (the adjacent fans 20 do not influence each other on the suction side) .
  • the partitioning panels 90 may be formed of various materials.
  • the partitioning panels 90 may be formed of a metal such as steel or aluminum.
  • the partitioning panels 90 may be formed of a resin.
  • the partitioning panels 90 are formed of a material with a low melting point such as a resin, however, since the heat exchangers 50 are heated to high temperatures at the time of a heating operation, formation of slight spaces between the partitioning panels 90 and the heat exchangers 50 is recommended.
  • the partitioning panels 90 are formed of a material with a high melting point such as aluminum or steel, the partitioning panels 90 may be arranged so as to be in contact with the respective heat exchangers 50. If the heat exchangers 50 are, for example, fin and tube heat exchangers, the partitioning panels 90 may be inserted between the fins of the heat exchangers 50.
  • the air path between the heat exchangers 50 and the fans 20 is divided into a plurality of air paths (three in Embodiment 1). It is also possible to reduce the noise generated in the ducts by providing sound-absorbing materials in these air paths, that is, on the partitioning panels 90 or in the casing 1.
  • the divided air paths are each formed into a substantially square shape of L1 ⁇ L2.
  • the widths of the divided air paths are L1 and L2. Therefore, the air volume generated by the fan 20 installed in the interior of the substantially square shape of L1 ⁇ L2, for example, reliably passes through the heat exchanger 50 surrounded by an area defined by L1 and L2 on the downstream side of the fan 20.
  • each of the partitioning panels 90 does not necessarily have to be formed of a single plate, and may be made up of a plurality of plates.
  • the partitioning panel 90 may be divided into two parts on the side of a front heat exchanger 51 and on the side of a back side heat exchanger 55. Needless to say, it is preferable that no gap be formed at a joint portion between the respective plates which constitute the partitioning panel 90.
  • the fan 20 is driven and rotated by the fan motor 30.
  • the fan motor 30 to be used may be either of an inner-rotor type or an outer-rotor type.
  • a motor having a structure in which a rotor is integrated with a boss 21 of the fan 20 (the rotor is held by the boss 21) is also employed.
  • the dimensions of the fan motor 30 to be smaller than the dimensions of the boss 21 of the fan 20, loss of airflow generated by the fan 20 can be prevented.
  • an axial dimension can also be reduced. With the easily detachable and attachable structure of the fan motor 30 and the fan 20, cleanability is also improved.
  • a circuit for driving the fan motor 30 may be integrated with the fan motor 30, or may be provided externally for dust-proofing measures and fire prevention measures.
  • the fan motor 30 is attached to the casing 1 using a motor stay 16.
  • the fan motor 30 to be of a box-type fan motor (in which the fan 20, a housing, and the fan motor 30 are integrally modularized) used for cooling a CPU and configuring the fan motor 30 so as to be detachably attached to the motor stay 16, maintainability can be improved, and accuracy of tip clearance of the fan 20 can also be improved.
  • a drive circuit of the fan motor 30 may be provided either in the interior of or on the exterior of the fan motor 30.
  • the motor stay 16 is provided with a fixing member 17 and supporting members 18.
  • the fixing member 17 is a member to which the fan motor 30 is attached.
  • the supporting members 18 are members configured to fix the fixing member 17 to the casing 1.
  • the supporting members 18 are, for example, rod-shaped members, and extend, for example, radially from an outer peripheral portion of the fixing member 17. As shown in Fig. 1 , the supporting members 18 according to Embodiment 1 are extend approximately horizontally.
  • the heat exchangers 50 of the indoor unit 100 according to Embodiment 1 are arranged on the downstream sides of the fans 20. Fin and tube heat exchangers are preferably used as the heat exchangers 50.
  • the heat exchangers 50 are each divided by a line of symmetry 50a in the right vertical cross section as shown in Fig. 1 .
  • the line of symmetry 50a divides the area substantially in the center in the horizontal direction of which the heat exchanger 50 is installed in this cross section.
  • the front side heat exchanger 51 is arranged on the front side (the left side in the plane of the paper in Fig. 1 ) with respect to the line of symmetry 50a and the back side heat exchanger 55 is arranged on the back side (the right side in the plane of the paper in Fig.
  • the front side heat exchanger 51 and the back side heat exchanger 55 are arranged in the casing 1 so that the distance between the front side heat exchanger 51 and the back side heat exchanger 55 increases in the direction of an air current, that is, so that the cross-sectional shape of the heat exchanger 50 forms a substantially inverted V-shape in the right vertical cross section.
  • the front side heat exchanger 51 and the back side heat exchanger 55 are arranged so as to be inclined with respect to the direction of the air current supplied from the fan 20.
  • the heat exchanger 50 is characterized in that the air path area of the back side heat exchanger 55 is larger than the air path area of the front side heat exchanger 51.
  • the heat exchanger 50 is arranged so that the air volume of the back side heat exchanger 55 is larger than the air volume of the front side heat exchanger 51.
  • the length of the back side heat exchanger 55 in the longitudinal direction is larger than the length of the front side heat exchanger 51 in the longitudinal direction in the right vertical cross section. Accordingly, the air path area of the back side heat exchanger 55 is larger than the air path area of the front side heat exchanger 51.
  • the rest of the configuration (such as the lengths in the depth direction in Fig.
  • the heat conduction area of the back side heat exchanger 55 is larger than the heat conduction area of the front side heat exchanger 51.
  • the axis of rotation 20a of the fan 20 is arranged above the line of symmetry 50a.
  • the generation of the swirl flow of the air blown out from the blow-out port 3 and the occurrence of a variation in wind velocity distribution can be restrained in comparison with the indoor unit of the conventional air-conditioning apparatus having the fan at the blow-out port.
  • the air volume of the back side heat exchanger 55 is larger than the air volume of the front side heat exchanger 51. Because of this difference in air volume, when air currents having passed through the front side heat exchanger 51 and the back side heat exchanger 55 merge, the merged air current is curved toward the front side (the side of the blow-out port 3). Therefore, necessity to curve the airflow steeply in the vicinity of the blow-out port 3 is eliminated, and hence the pressure loss in the vicinity of the blow-out port 3 can be reduced.
  • the air current flowing out from the back side heat exchanger 55 flows in the direction from the back side to the front side. Therefore, in the indoor unit 100 according to Embodiment 1, the air current after having passed the heat exchanger 50 can be curved more easily than in the case where the heat exchanger 50 is arranged in a substantially V-shape in the right vertical cross section.
  • the indoor unit 100 includes the plurality of fans 20, which often results in an increase in weight.
  • a wall surface strong enough for installing the indoor unit 100 is required, which leads to a restriction of installation. Therefore, reduction of weight of the heat exchanger 50 is preferred.
  • the fans 20 are arranged on the upstream sides of the heat exchangers 50, the height of the indoor unit 100 is increased, which often leads to a restriction of installation. Therefore, downsizing of the heat exchanger 50 is preferred.
  • the fin and tube heat exchanger is employed as the heat exchanger 50 (the front side heat exchanger 51 and the back side heat exchanger 55) to achieve downsize of the heat exchanger 50.
  • the heat exchanger 50 according to Embodiment 1 includes a plurality of fins 56 arranged side by side with predetermined gaps therebetween and a plurality of heat-transfer tubes 57 penetrating through the fins 56.
  • the fins 56 are arranged side by side in the horizontal direction of the casing 1 (the direction orthogonal to the plane of the paper of Fig. 1 ).
  • the heat-transfer tubes 57 penetrate through the fins 56 along the horizontal direction of the casing 1 (the direction orthogonal to the plane of the paper of Fig. 1 ).
  • two rows of the heat-transfer tubes 57 are arranged in the direction of air flow of the heat exchanger 50 (the width direction of the fins 56).
  • the heat-transfer tubes 57 are arranged in a substantially zigzag shape in right vertical cross section.
  • Downsizing of the heat exchanger 50 is achieved by configuring the heat-transfer tubes 57 with circular tubes having a small diameter (on the order of diameters ranging from 3 mm to 7 mm), and employing R32 as the refrigerant flowing through the heat-transfer tubes 57 (the refrigerant used in the indoor unit 100 and in the air-conditioning apparatus having the indoor unit 100).
  • the heat exchanger 50 exchanges heat between the refrigerant flowing in the interiors of the heat-transfer tubes 57 and the indoor air via the fins 56.
  • the pressure loss of the refrigerant is larger than that of the heat exchanger provided with heat-transfer tubes having a large diameter.
  • the latent heat of evaporation of R32 is higher than that of R410A at the same temperature, and hence the same capacity can be obtained with a smaller amount of circulation of the refrigerant. Therefore, by using R32, reduction of the amount of a refrigerant to be used is made possible, and the pressure loss in the heat exchanger 50 can be reduced. Therefore, by employing thin circular tubes as the heat-transfer tubes 57, and using R32 as the refrigerant, downsizing of the heat exchanger 50 is achieved.
  • the heat exchanger 50 according to Embodiment 1, a reduction in the weight of the heat exchanger 50 is achieved by forming the fins 56 and the heat-transfer tubes 57 with aluminum or aluminum alloy. And if the weight of the heat exchanger 50 does not cause a restriction of installation, the heat-transfer tubes 57 may be formed of copper as a matter of course.
  • the indoor unit 100 according to Embodiment 1, a finger guard 15 and a filter 10 are provided at the suction port 2.
  • the finger guard 15 is installed for the purpose of preventing the rotating fan 20 from being touched. Therefore, the shape of the finger guard 15 is arbitrary as long as the fan 20 is prevented from being touched.
  • the shape of the finger guard 15 may be a lattice shape, or may be a circular shape made up of a number of rings having different sizes.
  • the finger guard 15 may be formed either of materials such as resin or metallic materials. However, when strength is required, it is preferably formed of metal.
  • the finger guard 15 is preferably formed of materials and shapes as strong and thin as possible in terms of reduction of air-flow resistance and retention of strength.
  • the filter 10 is provided for the purpose of preventing dust from flowing into the interior of the indoor unit 100.
  • the filter 10 is provided in the casing 1 so as be detachable and attachable.
  • the indoor unit 100 according to Embodiment 1 includes an automatic cleaning mechanism which cleans the filter 10 automatically.
  • the indoor unit 100 includes a vertical wind direction control vane 70 and a horizontal wind direction control vane 80, which are mechanisms for controlling the blowing direction of the airflow, at the blow-out port 3.
  • the vertical wind direction control vane 70 and the horizontal wind direction control vane 80 are controlled together with the air volumes of each fans 20 on the basis of detected results of the human detection sensor. Accordingly, airflow controllability of the indoor unit 100 can be improved.
  • Fig. 3 is a front cross-sectional view illustrating the indoor unit according to Embodiment 1 of the invention.
  • Fig. 4 is a perspective view illustrating the same indoor unit.
  • Fig. 3 is a front cross-sectional view taken along the substantially center portions of the fans 20.
  • the indoor unit 100 shown in Fig. 3 and Fig. 4 show the indoor unit 100 having the three fans 20 (fan 20A to fan 20C) .
  • the horizontal wind direction control vane 80 is coupled to a motor 81, such as a stepping motor, via a link rod 82.
  • a motor 81 driven according to the number of steps commanded by the control device 281
  • the orientation (angle) of the horizontal wind direction control vane 80 is changed and the direction of airflow blown out from the blow-out port 3 can be controlled in the horizontal direction.
  • the vertical wind direction control vane 70 is coupled to a motor (not shown) such as a stepping motor.
  • the orientation (angle) of the vertical wind direction control vane 70 is changed and the direction of airflow blown out from the blow-out port 3 can be controlled in the vertical direction.
  • a human detection sensor configured to detect the position of a person present in a room.
  • a human detection sensor various types such as a human detection sensor using a camera may be used.
  • an infrared ray sensor 410 is used as the human detection sensor.
  • the infrared ray sensor 410 is configured to scan the area of the room subject to the detection of temperature and detect the temperature of the area of the room subject to the detection of temperature, and detect the presence of a person, a heat generating equipment, or the like.
  • the infrared ray sensor 410 is provided on the lower portion of a front surface of the casing 1 above the blow-out port 3.
  • the infrared ray sensor 410 is rotatable in the horizontal direction, and is attached so as to face downward at a depression angle of approximately 24.5 degrees.
  • the depression angle means an angle of a center axis of the infrared ray sensor 410 with respect to a horizontal line.
  • the infrared ray sensor 410 is attached so as to face downward at an angle of approximately 24.5 degrees with respect to the horizontal line.
  • Fig. 5 is an explanatory drawing illustrating each light distribution view angles of a light-receiving element in the infrared ray sensor according to Embodiment 1 of the invention.
  • the infrared ray sensor 410 includes eight light-receiving elements (not shown) arranged in a line in the vertical direction in a metallic container 411.
  • a window (not shown) formed of a lens for allowing infrared rays to pass through to the eight light-receiving elements.
  • Light distribution view angles 412 of each light-receiving elements are 7 degrees in the vertical direction and 8 degrees in the horizontal direction.
  • the light distribution view angles 412 of each light-receiving elements are 7 degrees in the vertical direction and 8 degrees in the horizontal direction
  • the light distribution view angles 412 are not limited to these values (7 degrees in the vertical direction and 8 degrees in the horizontal direction).
  • the number of the light-receiving elements can be changed according to the light distribution view angles 412 of each light-receiving elements.
  • the light distribution view angles may be determined so that the product of vertical light distribution view angles of a single light-receiving element and the number of light-receiving elements become constant.
  • Fig. 6 is a perspective view illustrating the housing for accommodating the infrared ray sensor according to Embodiment 1 of the invention.
  • Fig. 6 is a perspective view of a portion near the infrared ray sensor 410 viewed from the back side (from inside the casing 1).
  • the infrared ray sensor 410 is housed in the interior of a housing 413.
  • a motor 414 configured to drive the infrared ray sensor 410 (more specifically, to rotate the infrared ray sensor 410 in the horizontal direction).
  • the motor 414 is, for example, a stepping motor.
  • Mounting portions 415 formed integrally with the housing 413 are fixed to the lower portion of the front surface of the casing 1, so that the infrared ray sensor 410 is attached to the casing 1.
  • the motor 414 and the housing 413 are substantially vertical. Subsequently, the infrared ray sensor 410 is attached to the interior of the housing 413 so as to face downward at a depression angle of approximately 24.5 degrees.
  • the infrared ray sensor 410 is driven by the motor 414 so as to rotate within a predetermined angular range in the horizontal direction (the rotary drive like this is referred to as "turn", here). More specifically, the infrared ray sensor 410 is turned as shown in Figs. 7A to 7C .
  • Fig. 7A is an explanatory drawing illustrating a turning state of the infrared ray sensor according to Embodiment 1 of the invention
  • Fig. 7B is an explanatory drawing illustrating another turning state of the infrared ray sensor according to Embodiment 1 of the invention
  • Fig. 7C is an explanatory drawing illustrating still another turning state of the infrared ray sensor according to Embodiment 1 of the invention.
  • Fig. 7A here, is a perspective view illustrating a state in which the infrared ray sensor is turned to the left end (the right end in a state of viewing indoors from inside the indoor unit 100).
  • FIG. 7B is a perspective view illustrating a state in which the infrared ray sensor is turned to a center portion.
  • Fig. 7C is a perspective view illustrating a state in which the infrared ray sensor is turned to the right end (the left end in the state of viewing indoors from inside the indoor unit 100).
  • the infrared ray sensor 410 is turned from the left end ( Fig. 7A ) through the center portion ( Fig. 7B ) to the right end ( Fig. 7C ), and when it reaches the right end ( Fig. 7C ), it is inverted in direction and turns in the reverse direction.
  • the infrared ray sensor 410 detects the temperature of the area subject to the detection of temperature while scanning the area of the room subject to the detection of temperature in the horizontal direction.
  • control of the infrared ray sensor 410 and the like is performed by the control device 281 in which predetermined actions are programmed (for example, a microcomputer).
  • predetermined actions for example, a microcomputer.
  • the infrared ray sensor 410 When acquiring the heat image data such as the wall, the floor, or the like of a room, the infrared ray sensor 410 is turned in the horizontal direction by the motor 414, and the infrared ray sensor 410 is stopped for a predetermined period (0.1 to 0.2 seconds) at each position at every 1.6 degree of turning angle of the motor 414 (the angle of rotary drive of the infrared ray sensor 410). After every stop of the infrared ray sensor 410 at each position, the infrared ray sensor 410 is held as-is for a predetermined period (a period shorter than 0.1 to 0.2 seconds) to acquire the results of detection (heat image data) of the eight light-receiving elements of the infrared ray sensor 410.
  • a predetermined period a period shorter than 0.1 to 0.2 seconds
  • the motor 414 After having acquired the results of detection of the infrared ray sensor 410, the motor 414 is driven (at a turning angle of 1.6 degrees) again and then is stopped, and the results of detection (heat image data) of the eight light-receiving elements of the infrared ray sensor 410 are acquired with the same actions.
  • the above-described operation is performed repeatedly, and the heat image data in a detecting area are calculated on the basis of the results of detection of the infrared ray sensor 410 at 94 points in the horizontal direction. Since the heat image data is acquired by stopping the infrared ray sensor 410 at 94 points at every 1.6 degrees of turning angle of the motor 414, the turning range of the infrared ray sensor 410 in the horizontal direction (the angular range of rotary drive in the horizontal direction) is approximately 150.4 degrees.
  • Fig. 8 is an explanatory drawing illustrating the vertical light distribution view angles in a vertical cross section of the infrared ray sensor according to Embodiment 1 of the invention.
  • Fig. 8 shows the vertical light distribution view angles in the vertical cross section of the infrared ray sensor 410 having the eight light-receiving elements arranged in a row in the vertical direction, in a state in which the indoor unit 100 is installed at a height of 1800 mm from the floor surface of the room.
  • the angle 7 degrees shown in Fig. 8 is the vertical light distribution view angle of a single light-receiving element.
  • the heat image data as shown below, for example, may be acquired.
  • Fig. 9 shows an example of the heat image data acquired by the infrared ray sensor according to Embodiment 1.
  • Fig. 9 shows a result obtained by calculating the heat image data on the basis of the results of detection acquired while causing the infrared ray sensor 410 to turn in the horizontal direction in a daily instance in which a housewife 416 holds an infant 417 in her arms in a room measuring eight tatami mats (13.2 square meters).
  • Fig. 9 shows a heat image data acquired on a cloudy day in winter. Therefore, the temperature of a window 418 is as low as 10 to 15 degree C. In contrast, the temperatures of the housewife 416 and the infant 417 are the highest. In particular, the upper body temperatures of the housewife 416 and the infant 417 range from 26 to 30 degree C. By turning the infrared ray sensor 410 in the horizontal direction in this manner, the temperature information relating to each part of the room, for example, can be obtained.
  • the indoor unit 100 controls the air volumes of each fans 20, the orientation of the vertical wind direction control vane 70, and the orientation of the horizontal wind direction control vane 80 on the basis of the temperature information of each part of the room obtained by the infrared ray sensor 410.
  • the control device 281 provided in the indoor unit 100 is provided with an input unit, a CPU, a memory, and an output unit.
  • the CPU includes an indoor state gauging unit, a target area determining unit, an area wind direction control unit integrated in the interior thereof.
  • the control device 281 divides the floor surface area in the room into a plurality of area blocks, and replaces each coordinate points of the heat image data acquired by the infrared ray sensor 410 with these plurality of area blocks. Accordingly, the area blocks in the room where a person is present can be recognized with high degree of accuracy.
  • Fig. 10 shows an example in which the indoor unit according to Embodiment 1 divides the floor surface area in the room into the plurality of area blocks.
  • control device 281 of the indoor unit 100 divides the floor surface area in the room into fifteen area blocks, namely A1 to E3. Then, the control device 281 controls the orientations of the vertical wind direction control vane 70 and the horizontal wind direction control vane 80 on the basis of the heat source data acquired from the infrared ray sensor 410. The control device 281 also controls the air volumes of each fans 20 on the basis of the heat source data acquired from the infrared ray sensor 410.
  • the rotation speed of all the fans 20 are increased (the air volumes of all the fans 20 are increased), and the air volume blown out from the blow-out port 3 is increased.
  • the revolution speed of all the fans 20 are decreased (the air volumes of all the fans 20 are decreased), and the air volume blown out from the blow-out port 3 is decreased.
  • the air volume (that is, the rotation speed) of the fan 20 which generates an airflow reaching a place where the intensive air-conditioning is desired (the area block where a person is present) is increased.
  • the remaining fans 20 may be operated at a low rotation speed or may be stopped.
  • the air volume (that is, the rotation speed) of the fan 20 which generates the airflow reaching the place where the avoidance of the airflow blown out from the blow-out port 3 is desired is decreased.
  • the air conditioning in the room can be performed while restraining the airflow blown out from the blow-out port 3 from reaching the corresponding place. Accordingly, the comfortable and energy-saving operation of the indoor unit 100 can be realized while maintaining the environment of the place where avoidance of the airflow blown out from the blow-out port 3 of the indoor unit 100 is desired.
  • the fan 20 to generate the airflow reaching the "place where intensive air-conditioning is desired” or the "place where avoidance of the airflow blown out from the blow-out port 3 is desired” may be assigned to the fan 20 which is closest to the corresponding place.
  • the fan 20 which is to generate an airflow reaching the area block E3 may be assigned to the fan 20C (see Fig. 3 ).
  • Fig. 15 is a perspective view of the indoor unit according to Embodiment 1 of the invention when viewed from the front right side.
  • Fig. 16 is a perspective view of the same indoor unit when viewed from the back right side.
  • Fig. 17 is a perspective view of the same indoor unit when viewed from the front left side.
  • Fig. 18 is a perspective view illustrating a drain pan according to Embodiment 1 of the invention.
  • the right side of the indoor unit 100 is shown in cross section in Fig. 15 and Fig. 16
  • the left side of the indoor unit 100 is shown in cross section in Fig. 17 .
  • a front side drain pan 110 Provided below a lower end portion of the front side heat exchanger 51 (a front side end portion of the front side heat exchanger 51) is a front side drain pan 110.
  • a back side drain pan 115 Provided below a lower end portion of the back side heat exchanger 55 (a back side end portion of the back side heat exchanger 55) is a back side drain pan 115.
  • the back side drain pan 115 and a back side portion 1b of the casing 1 are integrally formed.
  • connecting ports 116 to which a drain hose 117 is connected are provided on both a left side end portion and a right side end portion.
  • the drain hose 117 may be connected to one of the connecting ports 116.
  • the drain hose 117 is connected to the connecting port 116 provided on the right side end portion of the back side drain pan 115, and the connecting port 116 provided on the left side end portion of the back side drain pan 115 may be closed with a rubber cap or the like.
  • the front side drain pan 110 is arranged at a position higher than the back side drain pan 115.
  • drain channels 111 which correspond to drain flow channels.
  • the drain channels 111 are each connected at an end portion on the front side thereof to the front side drain pan 110, and are provided so as to incline downward from the front side drain pan 110 toward the back side drain pan 115.
  • tongue portions 111a formed at end portions of the drain channels 111 on the back side are tongue portions 111a.
  • the end portions of the drain channels 111 on the back side are arranged so as to extend over an upper surface of the back side drain pan 115.
  • the drain water collected by the front side drain pan 110 flows through the drain channel 111 toward the back side drain pan 115.Then, the drain water drops down from the tongue portion 111a of the drain channel 111 to the back side drain pan 115, and is collected by the back side drain pan 115.
  • the drain water collected by the back side drain pan 115 passes through the drain hose 117, and is drained to the outside of the casing 1 (the indoor unit 100).
  • the drain water collected by both of the drain pans can be gathered in the back side drain pan 115 (the drain pan arranged on the backmost side of the casing 1). Therefore, by providing the connecting port 116 of the drain hose 117 in the back side drain pan 115, the drain water collected in the front side drain pan 110 and the back side drain pan 115 can be drained to the outside of the casing 1.
  • the drain channels 111 are provided on both the left side end portion and the right side end portion, even when the indoor unit 100 is installed in an inclined state, the drain water collected in the front side drain pan 110 can be guided reliably to the back side drain pan 115. Since the connecting ports to which the drain hoses 117 are to be connected are provided on both the left side end portion and the right side end portion, the drawing direction of the hose can be selected according to the conditions of the indoor unit 100 in installation, so that workability when installing the indoor unit 100 is improved.
  • drain channels 111 are provided so as to extend over the back side drain pan 115 (that is, since a connecting mechanism is not necessary between the drain channel 111 and the back side drain pan 115), attachment and detachment of the front side drain pan 110 is facilitated, and hence maintainability is further improved.
  • the front side drain pan 110 does not necessarily have to be provided at a higher position than the back side drain pan 115, and the drain water collected in both drain pans can be drained from the drain hose connected to the back side drain pan 115 even when the front side drain pan 110 and the back side drain pan 115 are provided at the same level.
  • the indoor unit 100 according to Embodiment 1 is configured in such a manner that an opening length d1 of a nozzle 6 on the suction side (a throttle length d1 between the drain pans defined by a portion between the front side drain pan 110 and the back side drain pan 115) is defined to be larger than an opening length d2 (the length of the blow-out port 3) of the nozzle 6 on the blow-out side.
  • the nozzle 6 of the indoor unit 100 has opening lengths which satisfy d1>d2.
  • the nozzle 6 is configured to have opening lengths of d1>d2 is as follows. Since the value d2 affects the distribution distance of the airflow, which is one of basic functions of the indoor unit, the opening length d2 of the indoor unit 100 according to Embodiment 1 is assumed to be a comparable length with the blow-out port of the conventional indoor unit in the description given below.
  • the air path is widened, and an angle A of the heat exchanger 50 arranged on the upstream side (the angle formed between the front side heat exchanger 51 an the back side heat exchanger 55 on the downstream side of the heat exchanger 50) can be widened. Therefore, the wind velocity distribution generated in the heat exchanger 50 is reduced, and the air path of the downstream side of the heat exchanger 50 can be widened, whereby reduction of pressure loss in the entire indoor unit 100 can be achieved.
  • the deviation of the wind velocity distribution generated in the vicinity of the inlet portion of the nozzle 6 can be unified and guided to the blow-out port by the effect of flow contraction.
  • an active silencing mechanism is provided as shown in Fig. 1 .
  • the silencing mechanism of the indoor unit 100 includes a noise detection microphone 161, a control speaker 181, a silencing effect detection microphone 191, and a signal processing device 201.
  • the noise detection microphone 161 is a noise detection device configured to detect an operation sound (noise) of the indoor unit 100 including a blast sound of the fan 20.
  • the noise detection microphone 161 is arranged between the fan 20 and the heat exchanger 50.
  • the noise detection microphone 161 is provided on the front surface portion in the casing 1.
  • the control speaker 181 is a control sound output device configured to output a control sound with respect to the noise.
  • the control speaker 181 is arranged below the noise detection microphone 161 and above the heat exchanger 50.
  • the control speaker 181 is provided on the front surface portion in the casing 1 so as to face the center of the air path.
  • the silencing effect detection microphone 191 is a silencing effect detection device configured to detect the silencing effect using the control sound.
  • the silencing effect detection microphone 191, being intended to detect a noise coming from the blow-out port 3, is provided in the vicinity of the blow-out port 3.
  • the silencing effect detection microphone 191 is attached at a position avoiding the airflow so as not to be exposed to the air coming out from the blow-out port 3.
  • the signal processing device 201 is a control sound generating device configured to cause the control speaker 181 to output the control sound on the basis of the results of detection by the noise detection microphone 161 and the silencing effect detection microphone 191.
  • the signal processing device 201 is housed, for example, in the control device 281.
  • Fig. 20 is a configuration drawing illustrating a signal processing device according to Embodiment 1 of the invention.
  • Electric signals supplied from the noise detection microphone 161 and the silencing effect detection microphone 191 are amplified by a microphone amplifier 151, and are converted from analogue signals to digital signals by an A/D converter 152.
  • the converted digital signals are input to an FIR filter 158 and an LMS algorithm 159.
  • a control signal which is corrected to cause a noise with the same amplitude as and an opposite phase from the detected noise by the noise detection microphone 161 when the noise reaches a position where the silencing effect detection microphone 191 is installed, and is converted from a digital signal to an analogue signal by an D/A converter 154, then is amplified by an amplifier 155, and then is emitted as the control sound from the control speaker 181.
  • the air-conditioning apparatus is in cooling operation, for example, as shown in Fig. 19 , the temperature in an area B between the heat exchanger 50 and the blow-out port 3 is lowered due to cool air, thereby causing dew condensation to appear as water droplets from water vapor in the air. Therefore, in the indoor unit 100, a water trap or the like (not shown) is attached in the vicinity of the blow-out port 3 for preventing the water droplets from coming out from the blow-out port 3.
  • the area where the noise detection microphone 161 and the control speaker 181 are arranged, which is on the upstream side of the heat exchanger 50 is not subjected to dew condensation, because it is located on the upstream side of the area to be cooled by cool air.
  • the operating sound (noise) including the blast sound of the fan 20 in the indoor unit 100 that is detected by the noise detection microphone 161 attached between the fan 20 and the heat exchanger 50 is converted into a digital signal via the microphone amplifier 151 and the A/D converter 152, and is supplied to the FIR filter 158 and the LMS algorithm 159.
  • a tap coefficient of the FIR filter 158 is updated sequentially by the LMS algorithm 159.
  • h is a tap coefficient of the filter
  • e is the error signal
  • x is a filter input signal
  • ⁇ is a step size parameter
  • the step size parameter ⁇ is used for controlling the update amount of the filter coefficient at every sampling.
  • the digital signal passed through the FIR filter 158 whose tap coefficient is updated by the LMS algorithm 159 is converted into an analogue signal by the D/A converter 154, is amplified by the amplifier 155, and is released into the air path in the indoor unit 100 as the control sound from the control speaker 181 attached between the fan 20 and the heat exchanger 50.
  • the silencing effect detection microphone 191 attached to a lower end of the indoor unit 100 on the outer wall of the blow-out port 3 so as to avoid wind blown out from the blow-out port 3, detects a sound which has been propagated from the fan 20 to the air path coming out from the blow-out port, the sound after having been interfered by the control sound released from the control speaker 181.
  • the tap coefficient of the FIR filter 158 is updated so as to cause the sound after the interference to approach zero. Consequently, the noise in the vicinity of the blow-out port 3 can be restrained by the control sound having passed through the FIR filter 158.
  • the noise detection microphone 161 and the control speaker 181 are arranged between the fan 20 and the heat exchanger 50, and the silencing effect detection microphone 191 is attached to a position avoiding the airflow from the blow-out port 3. Therefore, since it is not necessary to attach members required for active silencing to area B which is subjected to dew condensation, water droplets dropping on the control speaker 181, the noise detection microphone 161, and the silencing effect detection microphone 191 is prevented, and hence deterioration of silencing capabilities or defects of the speaker or the microphone can be prevented.
  • the positions where the noise detection microphone 161, the control speaker 181, and the silencing effect detection microphone 191 are attached shown in Embodiment 1 are only examples.
  • the silencing effect detection microphone 191 may be arranged between the fan 20 and the heat exchanger 50 together with the noise detection microphone 161 and the control speaker 181.
  • the microphone is exemplified as detecting means for detecting the noise or the silencing effect after having cancelled the noise using the control sound, it may be an acceleration sensor or the like for sensing vibrations of the casing.
  • a flow velocity sensor which detects the air current or a hot-wire probe may be used as the detecting means for detecting the noise or the silencing effect after having cancelled the noise using the control sound. It is also possible to detect the air current by increasing a gain of the microphone.
  • any adaptive signal processing circuit may be employed as long as it causes the sound detected by the silencing effect detection microphone 191 to approach zero, and also may be one in which a filtered-X algorithm generally used in the active silencing method is applicable.
  • the signal processing device 201 may be configured to generate the control signal using a fixed tap coefficient instead of employing adaptive signal processing.
  • the signal processing device 201 may be an analogue signal processing circuit instead of the digital signal processing circuit.
  • the heat exchanger 50 disposed to cool air which forms due condensation has been described, but the invention can be applied also to a case where the heat exchanger 50 of a level which does not cause dew condensation is arranged, and has effects to prevent deterioration of performances of the noise detection microphone 161, the control speaker 181, the silencing effect detection microphone 191, and the like without considering the presence or absence of occurrence of due condensation due to the heat exchanger 50.
  • Fig. 11 is a front cross-sectional view illustrating the indoor unit according to Embodiment 2 of the invention.
  • Fig. 12 is a perspective view illustrating the same indoor unit.
  • Fig. 11 is a front cross-sectional view taken along the substantially center portions of the fans 20.
  • the vertical wind direction control vane 70 and the horizontal wind direction control vane 80 are divided into a plurality of parts (in Fig. 11 and Fig. 12 , the vertical wind direction control vane 70 and the horizontal wind direction control vane 80 are each divided into two parts).
  • the horizontal wind direction control vane 80 is divided into a horizontal wind direction control vane 80a arranged on the left side of the casing 1 and a horizontal wind direction control vane 80b arranged on the right side of the casing 1.
  • the horizontal wind direction control vane 80a is coupled to a motor 81a, such as a stepping motor, via a link rod 82a.
  • the horizontal wind direction control vane 80b is coupled to a motor 81b, such as a stepping motor, via a link rod 82b.
  • the orientations (angles) of the horizontal wind direction control vane 80a and the horizontal wind direction control vane 80b are changed and the direction of airflow blown from the blow-out port 3 can be controlled in the horizontal direction.
  • the orientations (angles) of the horizontal wind direction control vane 80a and the horizontal wind direction control vane 80b can each be changed individually.
  • the vertical wind direction control vane 70 is divided into a vertical wind direction control vane 70a arranged on the left side of the casing 1 and a vertical wind direction control vane 70b arranged on the right side of the casing 1.
  • the vertical wind direction control vane 70a and the vertical wind direction control vane 70b are each coupled to motors (not shown) such as stepping motors. By these motors driven according to the number of steps commanded by the control device 281, the orientations (angles) of the vertical wind direction control vane 70a and the vertical wind direction control vane 70b are changed and the direction of airflow blown from the blow-out port 3 can be controlled in the vertical direction.
  • the orientations (angles) of the vertical wind direction control vane 70a and the vertical wind direction control vane 70b can each be changed individually.
  • the indoor unit 100 according to Embodiment 2 is capable of distributing airflows having different air volumes simultaneously to two different places in a room. Therefore, the air volumes in the two different places in the room can be controlled individually in such a manner that the air volume of the airflow to be distributed to the corresponding place may be increased if intensive distribution of the airflow is desired, and the air volume of the airflow to be distributed to the corresponding place may be decreased if avoidance of the airflow is desired. Therefore, air-conditioning in the room while maintaining the environments at two different places simultaneously is enabled.
  • the air volumes (that is, the rotation speed) of the fans 20 which generate the airflows reaching these two area blocks are increased.
  • the remaining fan 20 is operated with a low air volume or is stopped.
  • the air volume (that is, the rotation speed) of the fan 20 which generates an airflow reaching a place where the intensive air-conditioning is desired (the area block where the set temperature is not reached) is increased.
  • the air volume (that is, the rotation speed) of the fan 20 which generates the airflow reaching the area block in which the set temperature is reached is decreased to a low air volume.
  • the remaining fan 20 is operated with a low air volume or is stopped.
  • the airflow can be distributed intensively to a place where the intensive air-conditioning is desired (the area blocks where the set temperature is not reached), and the airflow with a small air volume can be distributed also to the area block where the set temperature is reached.
  • Fig. 13 is a front cross-sectional view illustrating the indoor unit according to Embodiment 3 of the invention.
  • Fig. 14 is a perspective view illustrating the same indoor unit.
  • Fig. 13 is a front cross-sectional view taken along the substantially center portions of the fans 20.
  • the indoor unit 100 shown in Fig. 13 and Fig. 14 show the indoor unit 100 having three fans 20 (fans 20A to 20C) .
  • the vertical wind direction control vane 70 and the horizontal wind direction control vane 80 are divided into parts as many as the number of the fans 20. Since the indoor unit 100 according to Embodiment 3 includes three fans 20 (fans 20A to 20C), the vertical wind direction control vane 70 and the horizontal wind direction control vane 80 are each divided into three parts.
  • the horizontal wind direction control vane 80 is divided into the horizontal wind direction control vane 80a arranged on the left side of the casing 1, the horizontal wind direction control vane 80b arranged at the center portion of the casing 1, and a horizontal wind direction control vane 80c arranged on the right side of the casing 1.
  • the horizontal wind direction control vane 80a is coupled to the motor 81a, such as the stepping motor, via the link rod 82a.
  • the horizontal wind direction control vane 80b is coupled to the motor 81b, such as the stepping motor, via the link rod 82b.
  • the horizontal wind direction control vane 80c is coupled to a motor 81c, such as a stepping motor, via a link rod 82c.
  • the orientations (angles) of the horizontal wind direction control vane 80a to the horizontal wind direction control vane 80c are changed and the direction of airflow blown from the blow-out port 3 can be controlled in the horizontal direction.
  • the orientations (angles) of the horizontal wind direction control vane 80a to the horizontal wind direction control vane 80c can each be changed individually.
  • the vertical wind direction control vane 70 is divided into the vertical wind direction control vane 70a arranged on the left side of the casing 1, the vertical wind direction control vane 70b arranged at the center portion of the casing 1, and a vertical wind direction control vane 70c arranged on the right side of the casing 1.
  • the vertical wind direction control vane 70a to the vertical wind direction control vane 70c are each coupled to motors (not shown) such as stepping motors. By these motors driven according to the number of steps commanded by the control device 281, the orientations (angles) of the vertical wind direction control vane 70a to the vertical wind direction control vane 70c are changed and the direction of airflow blown from the blow-out port 3 can be controlled in the vertical direction.
  • the orientations (angles) of the vertical wind direction control vane 70a to the vertical wind direction control vane 70c can each be changed individually.
  • the indoor unit 100 according to Embodiment 3 is capable of distributing airflows having different air volumes simultaneously to three different places in a room. Therefore, the air volumes in the three different places in the room can be controlled individually in such a manner that the air volume of the airflow to be distributed to the corresponding place may be increased if intensive distribution of the airflows is desired, and the air volume of the airflow to be distributed to the corresponding place may be decreased if avoidance of the airflow is desired. Therefore, air-conditioning in the room while maintaining the environments at the three different places simultaneously is enabled.
  • the air volumes (that is, the rotation speeds) of the fans 20 which generate airflows reaching places where the intensive air-conditioning is desired are each increased.
  • the air volume (that is, the rotation speed) of the fan 20 which generates the airflow reaching the area block in which the set temperature is reached is decreased to a low air volume.
  • the airflows can be distributed intensively to places where the intensive air-conditioning is desired (the two area blocks where the set temperature is not reached), and the airflow with a small air volume can be distributed also to the area block where the set temperature is reached. Accordingly, the temperature environment of the area block where the set temperature is reached can be maintained while actively air-conditioning the places where the intensive air-conditioning are desired (the two area blocks where the set temperature is not yet reached) .
  • the comfort can further be improved.
  • the direction of the airflow generated by the fan 20A is controlled by the vertical wind direction control vane 70a and the horizontal wind direction control vane 80a.
  • the direction of the airflow generated by the fan 20B is controlled by the vertical wind direction control vane 70b and the horizontal wind direction control vane 80b.
  • the direction of the airflow generated by the fan 20C is controlled by the vertical wind direction control vane 70c and the horizontal wind direction control vane 80c.
  • the airflows controlled respectively by the vertical wind direction control vane 70 and the horizontal wind direction control vane 80 are not the airflows generated by the plurality of fans 20, but an airflow generated by a single fan 20. Therefore, the air volume of the airflow to be distributed to a place where intensive control of the air volume is desired can be adjusted with high degree of accuracy, and further comfortable and energy-saving operation than the indoor unit 100 in which the numbers of divisions of the vertical wind direction control vane 70 and the horizontal wind direction control vane 80 and the number of the fans 20 are different (for example, the indoor units 100 according to Embodiment 1 and Embodiment 2) can be realized.

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EP11176224.1A 2010-08-04 2011-08-02 Unité intérieure d'appareil de climatisation d'air et appareil de climatisation d'air Active EP2416074B1 (fr)

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JP2010175336A JP5220068B2 (ja) 2010-08-04 2010-08-04 空気調和機の室内機、及び空気調和機

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103375882A (zh) * 2012-04-27 2013-10-30 富士通将军股份有限公司 用于空调器的控制电路以及包含用于控制空调器的程序指令的计算机可读存储介质
CN103528131A (zh) * 2012-06-28 2014-01-22 三星电子株式会社 空调的室内单元和控制该空调的方法
EP2982912A1 (fr) * 2014-08-04 2016-02-10 Mitsubishi Electric Corporation Unité d'intérieur pour climatiseur
AU2013366976B2 (en) * 2012-12-28 2016-08-18 Fujitsu General Limited Air conditioner and control circuit
AU2013366975B2 (en) * 2012-12-28 2016-08-18 Fujitsu General Limited Air conditioner
US9726384B2 (en) 2012-04-27 2017-08-08 Fujitsu General Limited Room air conditioner with movable side fan units
EP3358270A1 (fr) * 2017-02-03 2018-08-08 Mitsubishi Heavy Industries Thermal Systems, Ltd. Unité de climatisation d'air
EP3276273A4 (fr) * 2015-03-27 2018-12-05 Mitsubishi Electric Corporation Unité intérieure pour conditionneur d'air
US10584894B2 (en) 2012-12-28 2020-03-10 Fujitsu General Limited Air conditioner and control circuit
WO2021168985A1 (fr) * 2020-02-26 2021-09-02 广东美的制冷设备有限公司 Climatiseur, procédé de commande pour climatiseur, et support de stockage lisible par ordinateur

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102034104B1 (ko) 2012-06-28 2019-10-21 삼성전자주식회사 공기조화기의 실내기 및 공기조화기의 제어방법
US9651269B2 (en) * 2012-07-02 2017-05-16 Ormat Technologies Inc. Device and method for minimizing the effect of ambient conditions on the operation of a heat exchanger
CN102927652B (zh) * 2012-10-09 2015-06-24 清华大学 一种基于室内人物位置的智能空调调控方法
JP5950810B2 (ja) * 2012-12-13 2016-07-13 三菱電機株式会社 空気調和機の室内機
CN104110762B (zh) * 2013-04-24 2017-03-22 广东美的制冷设备有限公司 一种随身感空调以及空调风门控制方法
JP6249647B2 (ja) * 2013-06-18 2017-12-20 三菱電機株式会社 空気調和機の室内機
US10180257B2 (en) 2013-07-26 2019-01-15 Whirlpool Corporation Air conditioning systems for at least two rooms using a single outdoor unit
JP6046579B2 (ja) * 2013-09-09 2016-12-21 ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド 空気調和機
WO2015059770A1 (fr) * 2013-10-22 2015-04-30 三菱電機株式会社 Purificateur d'air
CN103629790B (zh) * 2013-11-13 2016-01-20 青岛海尔软件有限公司 能够纵横扫描检测温度进行温度控制的空调
CN103615791B (zh) * 2013-11-13 2016-04-20 青岛海尔软件有限公司 用于空调的能够纵横扫描的温度检测装置
CN103697560B (zh) * 2013-11-13 2016-05-04 青岛海尔软件有限公司 一种空调的控温方法
CN103615783B (zh) * 2013-11-13 2016-04-06 青岛海尔软件有限公司 能够纵向扫描的空调用温度检测装置
CN103615794B (zh) * 2013-11-13 2016-04-20 青岛海尔软件有限公司 具有动态温度控制功能的空调
JP6408305B2 (ja) * 2014-09-01 2018-10-17 日立ジョンソンコントロールズ空調株式会社 空気調和機
JP6439860B2 (ja) * 2015-03-30 2018-12-19 富士通株式会社 空調機、センサユニット、及び、空調システム
WO2016208009A1 (fr) * 2015-06-24 2016-12-29 三菱電機株式会社 Unité intérieure destinée à un climatiseur
KR101707617B1 (ko) * 2015-09-30 2017-02-21 삼성전자주식회사 공기 조화기 및 그 제어 방법
CN107514685A (zh) * 2017-08-01 2017-12-26 青岛海尔空调器有限总公司 壁挂式空调室内机及其控制方法
CN111837002B (zh) * 2018-03-19 2022-07-08 三菱电机株式会社 空调机的室内机
CN108534314A (zh) * 2018-04-27 2018-09-14 广东美的制冷设备有限公司 空调器的控制方法、空调器及计算机可读存储介质
CN108870542B (zh) * 2018-07-06 2021-05-04 珠海格力电器股份有限公司 一种空调室内机和空调器
KR102655688B1 (ko) * 2018-12-14 2024-04-09 현대자동차주식회사 차량 및 그 제어방법
CN113432250B (zh) * 2021-06-08 2022-10-11 Tcl空调器(中山)有限公司 空调器防夹人控制方法、装置、空调器及可读存储介质
JP7433278B2 (ja) * 2021-09-01 2024-02-19 日立ジョンソンコントロールズ空調株式会社 センサ装置および空気調和機
CN115930420B (zh) * 2023-01-13 2024-06-14 宁波奥克斯电气股份有限公司 一种空调导风板及其导风方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001153428A (ja) 1999-12-01 2001-06-08 Matsushita Electric Ind Co Ltd 空気調和機の風向制御方法

Family Cites Families (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8002896L (sv) * 1980-04-17 1981-10-18 Bahco Ventilation Ab Vermeatervinningsanordning
US4671458A (en) * 1985-02-25 1987-06-09 Kabushiki Kaisha Toshiba Air conditioning apparatus
JPH02213635A (ja) * 1989-02-13 1990-08-24 Mitsubishi Electric Corp 空気調和装置
US4988930A (en) * 1990-04-25 1991-01-29 Oberheide George C Plural motor fan system with improved speed control
JPH04169738A (ja) * 1990-11-01 1992-06-17 Mitsubishi Electric Corp 空気調和装置
GB2260831B (en) * 1991-10-18 1995-02-15 Toshiba Kk Air conditioning apparatus having louver for changing the direction of air into room
CN1056225C (zh) * 1992-03-07 2000-09-06 三星电子株式会社 空调系统
US5341650A (en) * 1992-03-13 1994-08-30 Kabushiki Kaisha Toshiba Air conditioning apparatus having a plurality of inlets for taking in indoor air at a plurality of portions of main body thereof
US5326028A (en) * 1992-08-24 1994-07-05 Sanyo Electric Co., Ltd. System for detecting indoor conditions and air conditioner incorporating same
JP2957378B2 (ja) * 1993-05-18 1999-10-04 シャープ株式会社 空気調和装置
KR0161063B1 (ko) * 1993-06-14 1999-01-15 윤종용 공기조화기의 운전제어장치 및 그 방법
TW331584B (en) * 1996-05-20 1998-05-11 Fujitsu General Ltd The air conditioner
TW342439B (en) * 1996-09-12 1998-10-11 Samsung Electronics Co Ltd Discharge current control apparatus of air conditioner and method thereof
KR0182727B1 (ko) * 1996-10-08 1999-05-01 삼성전자주식회사 공기조화기의 풍향제어방법
JP2000283526A (ja) * 1999-03-25 2000-10-13 Internatl Business Mach Corp <Ibm> エア・コンデイショニング・システム及び方法
JP2001065950A (ja) * 1999-08-27 2001-03-16 Sanyo Electric Co Ltd 空気調和機
JP4130047B2 (ja) * 2000-01-11 2008-08-06 三洋電機株式会社 空気調和機
US20040020225A1 (en) * 2002-08-02 2004-02-05 Patel Chandrakant D. Cooling system
DE20216099U1 (de) * 2002-10-19 2004-03-04 Ingenieurbüro Timmer Reichel GmbH Raumtemperierungselement
JP2004150731A (ja) * 2002-10-31 2004-05-27 Daikin Ind Ltd 空気調和装置
US6715689B1 (en) * 2003-04-10 2004-04-06 Industrial Technology Research Institute Intelligent air-condition system
JP3972860B2 (ja) * 2003-05-15 2007-09-05 ダイキン工業株式会社 冷凍装置
JP2005003244A (ja) * 2003-06-10 2005-01-06 Daikin Ind Ltd 空気調和機
US7337018B2 (en) * 2003-07-31 2008-02-26 Hewlett-Packard Development Company, L.P. Heat sink fan management based on performance requirements
US7084774B2 (en) * 2003-11-13 2006-08-01 International Business Machines Corporation Temperature control system
KR20050117665A (ko) * 2004-06-11 2005-12-15 엘지전자 주식회사 분리형 공기조화기의 실내기
US7490479B2 (en) * 2005-03-30 2009-02-17 Intel Corporation Method and system of advanced fan speed control
JP4478099B2 (ja) * 2005-11-25 2010-06-09 三菱電機株式会社 空気調和機
JP2007176391A (ja) * 2005-12-28 2007-07-12 Calsonic Kansei Corp 空調装置
KR100809784B1 (ko) * 2006-05-20 2008-03-04 엘지전자 주식회사 횡류팬을 포함하는 공기 조화기
EP2123986A4 (fr) * 2007-01-17 2016-05-18 Daikin Ind Ltd Système de commande de conditionnement d'air
JP4936961B2 (ja) * 2007-04-04 2012-05-23 株式会社東芝 空調システム制御装置
JP4259590B2 (ja) * 2007-04-24 2009-04-30 ダイキン工業株式会社 空調コントローラ
US20090061752A1 (en) * 2007-08-28 2009-03-05 Current Energy Controls, Lp Autonomous Ventilation System
TWI396817B (zh) * 2007-09-20 2013-05-21 Asustek Comp Inc 空調裝置
JP4589371B2 (ja) * 2007-10-05 2010-12-01 三菱電機株式会社 空気調和機
KR101253239B1 (ko) * 2008-03-11 2013-04-23 삼성전자주식회사 공기조화기
JP5111445B2 (ja) * 2008-09-10 2013-01-09 三菱電機株式会社 空気調和機
US8032261B1 (en) * 2008-12-18 2011-10-04 Emc Corporation Cooling system with adaptive protocol cooling unit
KR101569414B1 (ko) * 2008-12-26 2015-11-16 엘지전자 주식회사 공기조화기 및 그 동작방법
KR101556974B1 (ko) * 2008-12-26 2015-10-02 엘지전자 주식회사 공기조화기

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001153428A (ja) 1999-12-01 2001-06-08 Matsushita Electric Ind Co Ltd 空気調和機の風向制御方法

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9726384B2 (en) 2012-04-27 2017-08-08 Fujitsu General Limited Room air conditioner with movable side fan units
EP2664861A1 (fr) * 2012-04-27 2013-11-20 Fujitsu General Limited Circuit de commande pour climatiseur et support de stockage lisible par ordinateur contenant des instructions de programme permettant de commander un climatiseur
CN103375882B (zh) * 2012-04-27 2018-05-29 富士通将军股份有限公司 用于空调器的控制电路
US9964324B2 (en) 2012-04-27 2018-05-08 Fujitsu General Limited Controller circuit for air conditioner with cool air guided with room temperature airstream
CN103375882A (zh) * 2012-04-27 2013-10-30 富士通将军股份有限公司 用于空调器的控制电路以及包含用于控制空调器的程序指令的计算机可读存储介质
AU2013205422B2 (en) * 2012-04-27 2017-12-14 Fujitsu General Limited Controller circuit for air conditioner and computer-readable storage medium containing program instructions for controlling air conditioner
CN103528131A (zh) * 2012-06-28 2014-01-22 三星电子株式会社 空调的室内单元和控制该空调的方法
CN103528131B (zh) * 2012-06-28 2016-08-24 三星电子株式会社 空调的室内单元和控制该空调的方法
US9551498B2 (en) 2012-06-28 2017-01-24 Samsung Electronics Co., Ltd. Indoor unit of air conditioner and method of controlling the air conditioner
AU2013366976B2 (en) * 2012-12-28 2016-08-18 Fujitsu General Limited Air conditioner and control circuit
AU2013366975B2 (en) * 2012-12-28 2016-08-18 Fujitsu General Limited Air conditioner
US9863661B2 (en) 2012-12-28 2018-01-09 Fujitsu General Limited Air conditioner and control circuit
US9982902B2 (en) 2012-12-28 2018-05-29 Fujitsu General Limited Air conditioner with rotating outlet housing
US10584894B2 (en) 2012-12-28 2020-03-10 Fujitsu General Limited Air conditioner and control circuit
CN105333498A (zh) * 2014-08-04 2016-02-17 三菱电机株式会社 空调机的室内机
EP2982912A1 (fr) * 2014-08-04 2016-02-10 Mitsubishi Electric Corporation Unité d'intérieur pour climatiseur
EP3276273A4 (fr) * 2015-03-27 2018-12-05 Mitsubishi Electric Corporation Unité intérieure pour conditionneur d'air
US10895402B2 (en) 2015-03-27 2021-01-19 Mitsubishi Electric Corporation Indoor unit for air-conditioning apparatus
EP3358270A1 (fr) * 2017-02-03 2018-08-08 Mitsubishi Heavy Industries Thermal Systems, Ltd. Unité de climatisation d'air
WO2021168985A1 (fr) * 2020-02-26 2021-09-02 广东美的制冷设备有限公司 Climatiseur, procédé de commande pour climatiseur, et support de stockage lisible par ordinateur

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EP2416074A3 (fr) 2017-09-27
US20120031983A1 (en) 2012-02-09
CN102374589B (zh) 2014-12-31
EP2416074B1 (fr) 2021-12-22
ES2904324T3 (es) 2022-04-04
JP5220068B2 (ja) 2013-06-26
CN102374589A (zh) 2012-03-14
JP2012037087A (ja) 2012-02-23

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