WO2020194557A1 - Indoor unit for air-conditioning apparatus - Google Patents
Indoor unit for air-conditioning apparatus Download PDFInfo
- Publication number
- WO2020194557A1 WO2020194557A1 PCT/JP2019/013028 JP2019013028W WO2020194557A1 WO 2020194557 A1 WO2020194557 A1 WO 2020194557A1 JP 2019013028 W JP2019013028 W JP 2019013028W WO 2020194557 A1 WO2020194557 A1 WO 2020194557A1
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- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- indoor unit
- side plate
- bracket
- support surface
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
Definitions
- An embodiment of the present invention relates to an indoor unit of an air conditioner.
- the indoor unit is suspended from behind the ceiling.
- the indoor unit includes a blower, a heat exchanger, and a housing for accommodating them.
- the heat exchanger is connected to the side plate of the housing by a sheet metal.
- a heat insulating material made of styrofoam is arranged on the inner surface of the housing.
- the side plate when the heat exchanger becomes low temperature, the side plate is cooled by heat transfer through the sheet metal or cold air from the heat exchanger leaking from the gap between the sheet metal and the heat insulating material. Condensation may occur inside and outside the side plate. Such dew condensation can also occur in indoor units of air conditioners other than the ceiling-embedded type.
- An object to be solved by the present invention is to provide an indoor unit of an air conditioner capable of suppressing dew condensation in the vicinity of a component holding a heat exchanger.
- the indoor unit of the air conditioner includes a housing including a side plate, a heat exchanger housed in the housing and having an end facing the side plate, and the end of the heat exchanger. It is equipped with a holder for holding.
- the holder is made of a resin material, a first member that connects the end portion of the heat exchanger and the side plate, and foamed plastic, and is interposed between the heat exchanger and the side plate. It includes a second member that covers at least a part of the first member.
- FIG. 1 is a perspective view showing the appearance of the indoor unit according to the embodiment.
- FIG. 2 is a schematic perspective view showing the inside of the indoor unit.
- FIG. 3 is a schematic cross-sectional view of the indoor unit.
- FIG. 4 is a schematic perspective view showing a part of the elements shown in FIG. 2 in an enlarged manner.
- FIG. 5 is a schematic perspective view of the first holder included in the indoor unit.
- FIG. 6 is a schematic perspective view of the first holder as viewed from another angle.
- FIG. 7 is a schematic perspective view of the first holder as viewed from yet another angle.
- FIG. 8 is a diagram schematically showing a state in which the first holder and the bracket are connected.
- FIG. 1 is a perspective view showing the appearance of the indoor unit 1 according to the present embodiment.
- FIG. 2 is a schematic perspective view showing the inside of the indoor unit 1.
- FIG. 3 is a schematic cross-sectional view of the indoor unit 1.
- the indoor unit 1 is arranged indoors, for example, and is connected to an outdoor unit arranged outdoors via a refrigerant pipe.
- the indoor unit 1, the outdoor unit, and the refrigerant piping constitute an air conditioner equipped with a refrigeration cycle.
- the indoor unit 1 includes a housing 2 and a panel 3 that covers the lower surface of the housing 2.
- a plurality of hanging metal fittings 2a are provided on the outer peripheral surface of the housing 2. By connecting these hanging metal fittings 2a to hanging bolts suspended from the beams behind the ceiling, the indoor unit 1 is fixed to the ceiling of the space to be air-conditioned.
- the panel 3 has a main body 30, a suction port 31, and a blowout port 32.
- the suction port 31 includes a grill 33 that is removable with respect to the main body 30 and a filter 34 (see FIG. 3) arranged inside the grill 33.
- the outlet 32 includes a flap 35 that can be opened and closed with respect to the main body 30.
- FIG. 1 shows a state in which the outlet 32 is closed by the flap 35.
- the internal structure shown in FIG. 2 corresponds to a view of the inside of the housing 2 from below in FIG. 1 with the panel 3 and the drain pan 50 described later removed.
- the housing 2 is box-shaped with the panel 3 side (upper side in FIG. 2) open.
- the housing 2 has a rectangular top plate 20 which is the upper surface of the indoor unit 1 when mounted on the ceiling, a first side plate 21 along one short side of the top plate 20, and the other of the top plate 20.
- a second side plate 22 along the short side of the top plate 20 and a third side plate 23 along one long side of the top plate 20 are included.
- the housing 2 further includes a fourth side plate 24 (see FIG. 1) along the other long side of the top plate 20, but in FIG. 2, the fourth side plate 24 is omitted and the fourth side plate 24 A part of the heat insulating material 25 arranged along the line is broken.
- the top plate 20 and the side plates 21 to 24 are all made of metal.
- the heat insulating material 25 can be made of foamed plastic such as Styrofoam.
- a partition plate 26 is arranged along the longitudinal direction of the housing 2.
- the internal space of the housing 2 is divided into a blower chamber A and a heat exchange chamber B by a partition plate 26.
- a blower device 4 is arranged in the blower chamber A.
- a heat exchanger 5 is arranged in the heat exchange chamber B.
- a drain pan 50 for receiving drain water dripping from the heat exchanger 5 is arranged between the heat exchanger 5 and the panel 3.
- the drain pan 50 can be made of foamed plastic such as Styrofoam.
- a drain pump 6 or the like for draining the drain water accumulated in the drain pan 50 is arranged between the heat exchanger 5 and the second side plate 22.
- the second side plate 22 is provided with connection ports 51a and 51b for connecting pipes through which the refrigerant flows, and connection ports 60 for connecting pipes for discharging drain water.
- the connection ports 51a and 51b are connected to the heat exchanger 5.
- the connection port 60 is connected to the drain pump 6.
- the blower device 4 includes a fan motor 40, a pair of fan units 41a and 41b, and a rotating shaft 42.
- the fan units 41a and 41b are arranged so as to face each other with the fan motor 40 in between.
- the rotating shaft 42 is rotatably supported by a fan motor 40, and both ends extend toward the fan units 41a and 41b, respectively.
- the number of fan units included in the blower 4 is not limited to two.
- the fan units 41a and 41b include a multi-blade fan 43 connected to the rotating shaft 42 and a fan case 44 accommodating the multi-blade fan 43.
- the fan case 44 has an intake hole 45 and a nozzle portion 46.
- the nozzle portion 46 opens into the heat exchange chamber B and faces the heat exchanger 5.
- the heat exchanger 5 includes a plurality of plate-shaped fins 52 and a plurality of heat transfer tubes 53 through which a refrigerant flows.
- Each fin 52 is inclined so that one end on the blower chamber A side is located below the other end (in the direction toward the panel 3).
- the plurality of fins 52 are arranged in the longitudinal direction of the indoor unit 1 (direction from the first side plate 21 to the second side plate 22).
- the plurality of heat transfer tubes 53 extend in the longitudinal direction of the indoor unit 1 and penetrate each fin 52.
- the flow path of the heat exchanger 5 including each heat transfer tube 53 is connected to the connection ports 51a and 51b. That is, the refrigerant supplied from one of the connection ports 51a and 51b is discharged to the other of the connection ports 51a and 51b after passing through each heat transfer tube 53.
- the blower chamber A leads to the suction port 31.
- air is taken into the air blowing chamber A through the suction port 31. Further, the air is sucked into the inside of the multi-blade fan 43 through the intake hole 45 and blown out from the nozzle portion 46 toward the heat exchanger 5.
- the heat exchanger 5 converts the air into cold or warm heat exchange air. The heat exchange air is sent out to the space to be air-conditioned through the outlet 32.
- the heat exchanger 5 has a first end portion 5a on the first side plate 21 side and a second end portion 5b on the second side plate 22 side.
- the first end portion 5a is held by a first holder 71 arranged between the heat exchanger 5 and the first side plate 21.
- the second end portion 5b is held by a second holder 72 arranged between the heat exchanger 5 and the second side plate 22.
- FIG. 4 is a schematic perspective view showing the heat exchanger 5, the first holder 71, and the second holder 72 in FIG. 2 in an enlarged manner.
- the X direction is the direction from the first end portion 5a to the second end portion 5b, and corresponds to the longitudinal direction of the heat exchanger 5.
- the Y direction corresponds to the lateral direction of the heat exchanger 5.
- the Z direction corresponds to the height direction of the heat exchanger 5 and coincides with the gravity direction when the indoor unit 1 is mounted on the ceiling.
- the heat exchanger 5 includes a first bracket 54 and a second bracket 55 protruding from the first end portion 5a, and a third bracket 56 protruding from the second end portion 5b.
- the first bracket 54 and the second bracket 55 are parallel to each other and extend in a direction intersecting the Y direction and the Z direction.
- the third bracket 56 extends in a direction intersecting the Y direction and the Z direction.
- the first holder 71 and the first bracket 54 are connected by a plurality of screws S1.
- the second holder 72 is composed of, for example, an L-shaped bent sheet metal, and has a first portion 72a extending in the X direction and a second portion 72b extending in the second direction Y.
- the first portion 72a is connected to, for example, the above-mentioned top plate 20 or the second side plate 22.
- the tip of the second portion 72b is bent to the back side of the third bracket 56, and the tip and the third bracket 56 are connected by one or a plurality of screws S2.
- pipes and the like connecting the heat exchanger 5 and the connection ports 51a and 51b are arranged in the space formed by the first portion 72a and the second portion 72b.
- the first holder 71 includes a first member 80 and a second member 90. In each figure, the first member 80 is shaded.
- the first member 80 is made of a resin material having higher rigidity than the second member 90.
- the second member 90 is made of a resin material having better heat insulating properties than the first member 80.
- ABS resin or PS resin can be used as the first member 80.
- Styrofoam which is a kind of foamed plastic, can be used.
- the first member 80 and the second member 90 may be integrally molded products.
- the first member 80 is housed in a mold having the shape of the first holder 71, and the second member 90 is foam-molded in the mold.
- the first holder 71 can be manufactured. If the first member 80 and the second member 90 are integrally molded products, they can be integrated without using an adhesive. Further, there is no gap between the first member 80 and the second member 90.
- the second member 90 has a flat plate-shaped base 91.
- the base 91 has a first surface 91a shown in FIG. 5 and a second surface 91b shown in FIG. 7. Further, the second member 90 has a first convex portion 92 and a second convex portion 93 protruding from the first surface 91a in the X direction.
- the first convex portion 92 has a first concave portion 92a and a second concave portion 92b that are recessed toward the base portion 91. In the example shown in FIG. 5, the width of the second recess 92b is larger than the width of the first recess 92a.
- the first member 80 has a plate portion 81 inclined with respect to the Y direction and the Z direction. As shown in FIGS. 5 and 7, both ends of the plate portion 81 in the X direction are each exposed from the second member 90. That is, the plate portion 81 penetrates the second member 90 in the X direction.
- the portion of the plate portion 81 protruding from the base portion 91 has a first support surface F1 shown in FIG. 6 and a back surface RF shown in FIG. Most of the first support surface F1 is exposed from the second member 90. On the other hand, the back surface RF is covered with the first convex portion 92 except for the region corresponding to the first concave portion 92a and the second concave portion 92b.
- the second convex portion 93 has a second support surface F2 facing the first support surface F1.
- the second support surface F2 is parallel to the first support surface F1.
- a plurality of recesses may be appropriately provided on the second support surface F2.
- a groove GR for inserting the first end portion 5a of the heat exchanger 5 is formed between the first support surface F1 and the second support surface F2.
- the plate portion 81 has a plurality of through holes 82 in the region corresponding to the first recess 92a and the second recess 92b.
- one through hole 82 is provided in the region corresponding to the first recess 92a, and two through holes 82 are provided in the region corresponding to the second recess 92b.
- the first member 80 has three first ribs 83 protruding from the back surface RF. Both ends of the first rib 83 in the X direction are exposed from the second member 90, respectively. That is, the first rib 83 penetrates the second member 90 (first convex portion 92) in the X direction.
- the first member 80 further has five second ribs 84 protruding from the plate portion 81. These second ribs 84 extend in the X direction inside the first convex portion 92. The second rib 84 does not reach the first support surface F1. Therefore, the length of the second rib 84 in the X direction is shorter than the length of the first rib 83 in the X direction.
- the first member 80 further has three third ribs 85 protruding from the plate portion 81 in the direction opposite to each first rib 83.
- Each third rib 85 extends in the X direction inside the base 91.
- the first member 80 has three female threads 87 that open on the second surface 91b side.
- the peripheral walls of these female threads 87 are each connected to the third rib 85.
- the numbers of the first to third ribs 83 to 85 and the female threads 87 are not limited to the examples shown in FIGS. 5 to 7.
- the strength of the plate portion 81 is increased by the first to third ribs 83 to 85. Further, the first to third ribs 83 to 85 increase the contact area between the first member 80 and the second member 90, and the force applied to the first member 80 is dispersed in various parts of the second member 90. As a result, peeling of the contact surface between the first member 80 and the second member 90 can be suppressed.
- FIG. 8 is a diagram schematically showing a state in which the first holder 71, the first bracket 54, and the second bracket 55 are connected.
- various shaded areas are YZ of the first member 80, the first convex portion 92, the second convex portion 93, the first bracket 54, and the second bracket 55 at positions corresponding to the through holes 82.
- the Z direction (gravity direction) faces downward in the figure as in the state where the indoor unit 1 is mounted on the ceiling. That is, the blower chamber A is located in the direction indicated by the arrow on the right side in the figure, and the panel 3 is located in the direction indicated by the arrow on the lower side in the figure.
- Each of the support surfaces F1 and F2 and the brackets 54 and 55 are inclined so that one end on the blower chamber A side is closer to the panel 3 than the other end. Even when the drain water flows toward one end on the air blowing chamber A side, the drain water is received by the above-mentioned drain pan 50.
- the first bracket 54 and the second bracket 55 are inserted into the groove GR between the first support surface F1 and the second support surface F2.
- the first bracket 54 is in contact with the first support surface F1.
- the second bracket 55 is in contact with the second support surface F2.
- the first bracket 54 has a female screw 54a at a position corresponding to each through hole 82 of the first member 80.
- the screw S1 also shown in FIG. 4 passes through the through hole 82 and is screwed into the female screw 54a.
- the screw S1 is inserted into one of the two sets of through holes 82 and the female screw 54a corresponding to the second recess 92b, and is not inserted into the other.
- the screw S1 may be inserted into both of these two sets of through holes 82 and the female screw 54a, respectively.
- the first support surface F1 is located between the first bracket 54 and the lower panel 3. Therefore, the first support surface F1 receives the load of the heat exchanger 5 via the first bracket 54. Further, since the second bracket 55 is in contact with the second support surface F2, rattling of the heat exchanger 5 in the Y direction and the Z direction is suppressed.
- the first end portion 5a of the heat exchanger 5 and the first side plate 21 are connected by a sheet metal instead of the first holder 71, the first side plate 21 is cooled by heat transfer through the sheet metal, and the first side plate 21 is cooled. Condensation may occur inside and outside the 1 side plate 21. Since it is difficult for the drain pan 50 to receive this condensed water, there is a possibility that it may collect on the upper surface of the panel 3 or drip from the indoor unit 1.
- the thermal conductivity of the resin material is lower than that of the metal material. , The generation of dew condensation water on the first side plate 21 and the first holder 71 can be suppressed.
- the heat exchanger 5 Since the load of the heat exchanger 5 is mainly received by the first member 80 having excellent rigidity, the heat exchanger 5 can be stably supported. Further, the second member 90 having excellent heat insulating properties is interposed between the heat exchanger 5 and the first side plate 21 and covers a part of the first member 80. As a result, the cold air from the heat exchanger 5 is less likely to be transmitted to the first side plate 21, and the occurrence of dew condensation on the first side plate 21 can be more reliably suppressed.
- first member 80 and the second member 90 are integrally molded products, there will be no gap between them. Therefore, the cold air from the heat exchanger 5 can be more preferably shut off. As described above, by providing the first to third ribs 83 to 85 on the first member 80, the strength of the first member 80 is increased and the peeling of the contact surface between the first member 80 and the second member 90 is suppressed. it can.
- first member 80 and the second member 90 are bonded with an adhesive, the interface between the first member 80 and the second member 90 may be peeled off due to the force caused by the thermal expansion and contraction of the heat exchanger 5. Abnormal noise may occur due to peeling. However, if the first member 80 and the second member 90 are integrally molded products, such a problem is unlikely to occur.
- the structure of the first holder 71 can be deformed in various ways depending on the shape of the first end portion 5a of the heat exchanger 5 and the shape of the bracket provided on the first end portion 5a.
- the second end portion 5b of the heat exchanger 5 is held by the second holder 72 of the sheet metal.
- the second end portion 5b may also be held by a resin holder like the first end portion 5a.
- the holding structure of the heat exchanger 5 in the ceiling-embedded indoor unit is disclosed.
- This holding structure can be applied not only to the ceiling-embedded type but also to other types of indoor units.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The indoor unit for an air-conditioning apparatus according to one embodiment of the present invention is provided with: a case body which includes a side plate; a heat exchanger which is accommodated within the case body and which has an end section that faces the side plate; and a holding implement which holds the end section of the heat exchanger. The holding implement is equipped with: a first member that is composed of a resin material and couples the end section of the heat exchanger and the side plate; and a second member that is composed of a foamed plastic, that is interposed between the heat exchanger and the side plate, and that at least partially covers the first member.
Description
本発明の実施形態は、空気調和機の室内ユニットに関する。
An embodiment of the present invention relates to an indoor unit of an air conditioner.
例えば天井埋め込み型の空気調和機においては、室内ユニットが天井裏から吊り下げられている。室内ユニットは、送風装置と、熱交換器と、これらを収容する筐体とを備えている。熱交換器は、板金によって筐体の側板に接続されている。筐体の内面には、例えば発泡スチロール製の断熱材が配置される。
For example, in a ceiling-embedded air conditioner, the indoor unit is suspended from behind the ceiling. The indoor unit includes a blower, a heat exchanger, and a housing for accommodating them. The heat exchanger is connected to the side plate of the housing by a sheet metal. For example, a heat insulating material made of styrofoam is arranged on the inner surface of the housing.
上記のような室内ユニットの構造においては、熱交換器が低温となる場合に、板金を介した伝熱や、熱交換器からの冷気が板金と断熱材との隙間から漏れることによって側板が冷やされ、側板の内外に結露が生じることがある。このような結露は、天井埋め込み型以外の空気調和機の室内ユニットにおいても生じ得る。
In the structure of the indoor unit as described above, when the heat exchanger becomes low temperature, the side plate is cooled by heat transfer through the sheet metal or cold air from the heat exchanger leaking from the gap between the sheet metal and the heat insulating material. Condensation may occur inside and outside the side plate. Such dew condensation can also occur in indoor units of air conditioners other than the ceiling-embedded type.
本発明が解決しようとする課題は、熱交換器を保持する部品の近傍における結露を抑制することが可能な空気調和機の室内ユニットを提供することである。
An object to be solved by the present invention is to provide an indoor unit of an air conditioner capable of suppressing dew condensation in the vicinity of a component holding a heat exchanger.
一実施形態に係る空気調和機の室内ユニットは、側板を含む筐体と、前記筐体に収容され、前記側板に対向する端部を有する熱交換器と、前記熱交換器の前記端部を保持する保持具と、を備えている。前記保持具は、樹脂材料で構成され、前記熱交換器の前記端部と前記側板とを連結する第1部材と、発泡プラスチックで構成され、前記熱交換器と前記側板の間に介在するとともに、前記第1部材の少なくとも一部を覆う第2部材と、を備えている。
The indoor unit of the air conditioner according to the embodiment includes a housing including a side plate, a heat exchanger housed in the housing and having an end facing the side plate, and the end of the heat exchanger. It is equipped with a holder for holding. The holder is made of a resin material, a first member that connects the end portion of the heat exchanger and the side plate, and foamed plastic, and is interposed between the heat exchanger and the side plate. It includes a second member that covers at least a part of the first member.
一実施形態につき、図面を参照しながら説明する。
図1は、本実施形態に係る室内ユニット1の外観を示す斜視図である。図2は、室内ユニット1の内部を示す概略的な斜視図である。図3は、室内ユニット1の概略的な断面図である。室内ユニット1は、例えば屋内に配置され、屋外に配置された室外ユニットと冷媒配管を介して接続される。室内ユニット1、室外ユニットおよび冷媒配管により、冷凍サイクルを備えた空気調和機が構成される。 One embodiment will be described with reference to the drawings.
FIG. 1 is a perspective view showing the appearance of theindoor unit 1 according to the present embodiment. FIG. 2 is a schematic perspective view showing the inside of the indoor unit 1. FIG. 3 is a schematic cross-sectional view of the indoor unit 1. The indoor unit 1 is arranged indoors, for example, and is connected to an outdoor unit arranged outdoors via a refrigerant pipe. The indoor unit 1, the outdoor unit, and the refrigerant piping constitute an air conditioner equipped with a refrigeration cycle.
図1は、本実施形態に係る室内ユニット1の外観を示す斜視図である。図2は、室内ユニット1の内部を示す概略的な斜視図である。図3は、室内ユニット1の概略的な断面図である。室内ユニット1は、例えば屋内に配置され、屋外に配置された室外ユニットと冷媒配管を介して接続される。室内ユニット1、室外ユニットおよび冷媒配管により、冷凍サイクルを備えた空気調和機が構成される。 One embodiment will be described with reference to the drawings.
FIG. 1 is a perspective view showing the appearance of the
図1に示すように、室内ユニット1は、筐体2と、筐体2の下面を覆うパネル3とを備えている。筐体2の外周面には、複数の吊り金具2aが設けられている。これら吊り金具2aを天井裏の梁から吊り下げられた吊りボルトに連結することにより、室内ユニット1が空調対象の空間の天井に固定される。
As shown in FIG. 1, the indoor unit 1 includes a housing 2 and a panel 3 that covers the lower surface of the housing 2. A plurality of hanging metal fittings 2a are provided on the outer peripheral surface of the housing 2. By connecting these hanging metal fittings 2a to hanging bolts suspended from the beams behind the ceiling, the indoor unit 1 is fixed to the ceiling of the space to be air-conditioned.
パネル3は、本体30と、吸込み口31と、吹出し口32とを有している。吸込み口31は、本体30に対して取り外し可能なグリル33と、グリル33の内側に配置されたフィルタ34(図3参照)とを含む。吹出し口32は、本体30に対して開閉可能なフラップ35を含む。図1においては、フラップ35により吹出し口32が閉じられた状態を示している。
The panel 3 has a main body 30, a suction port 31, and a blowout port 32. The suction port 31 includes a grill 33 that is removable with respect to the main body 30 and a filter 34 (see FIG. 3) arranged inside the grill 33. The outlet 32 includes a flap 35 that can be opened and closed with respect to the main body 30. FIG. 1 shows a state in which the outlet 32 is closed by the flap 35.
図2に示す内部構造は、パネル3および後述のドレンパン50を取り外して、筐体2の内部を図1における下方から見たものに相当する。筐体2は、パネル3側(図2における上側)が開口した箱型である。具体的には、筐体2は、天井への取り付け時には室内ユニット1の上面となる長方形の天板20と、天板20の一方の短辺に沿う第1側板21と、天板20の他方の短辺に沿う第2側板22と、天板20の一方の長辺に沿う第3側板23とを含む。
The internal structure shown in FIG. 2 corresponds to a view of the inside of the housing 2 from below in FIG. 1 with the panel 3 and the drain pan 50 described later removed. The housing 2 is box-shaped with the panel 3 side (upper side in FIG. 2) open. Specifically, the housing 2 has a rectangular top plate 20 which is the upper surface of the indoor unit 1 when mounted on the ceiling, a first side plate 21 along one short side of the top plate 20, and the other of the top plate 20. A second side plate 22 along the short side of the top plate 20 and a third side plate 23 along one long side of the top plate 20 are included.
なお、筐体2は、天板20の他方の長辺に沿う第4側板24(図1参照)をさらに含むが、図2においてはこの第4側板24を省略するとともに、第4側板24に沿って配置される断熱材25の一部を破断している。例えば、天板20および各側板21~24は、いずれも金属製である。断熱材25は、例えば発泡スチロールなどの発泡プラスチックで構成することができる。
The housing 2 further includes a fourth side plate 24 (see FIG. 1) along the other long side of the top plate 20, but in FIG. 2, the fourth side plate 24 is omitted and the fourth side plate 24 A part of the heat insulating material 25 arranged along the line is broken. For example, the top plate 20 and the side plates 21 to 24 are all made of metal. The heat insulating material 25 can be made of foamed plastic such as Styrofoam.
筐体2の内部には、仕切り板26が筐体2の長手方向に沿って配置されている。筐体2の内部空間は、仕切り板26によって送風室Aと熱交換室Bとに区画されている。送風室Aには、送風装置4が配置されている。熱交換室Bには、熱交換器5が配置されている。
Inside the housing 2, a partition plate 26 is arranged along the longitudinal direction of the housing 2. The internal space of the housing 2 is divided into a blower chamber A and a heat exchange chamber B by a partition plate 26. A blower device 4 is arranged in the blower chamber A. A heat exchanger 5 is arranged in the heat exchange chamber B.
図3に示すように、熱交換器5とパネル3との間には、熱交換器5から滴下するドレン水を受けるドレンパン50が配置されている。ドレンパン50は、例えば発泡スチロールなどの発泡プラスチックで構成することができる。
As shown in FIG. 3, a drain pan 50 for receiving drain water dripping from the heat exchanger 5 is arranged between the heat exchanger 5 and the panel 3. The drain pan 50 can be made of foamed plastic such as Styrofoam.
図2に示すように、熱交換器5と第2側板22との間には、ドレンパン50に溜ったドレン水を排出するためのドレンポンプ6等が配置されている。第2側板22には、冷媒が流れる配管を接続するための接続口51a,51bと、ドレン水を排出する配管を接続するための接続口60とが設けられている。接続口51a,51bは、熱交換器5に接続されている。接続口60は、ドレンポンプ6に接続されている。
As shown in FIG. 2, a drain pump 6 or the like for draining the drain water accumulated in the drain pan 50 is arranged between the heat exchanger 5 and the second side plate 22. The second side plate 22 is provided with connection ports 51a and 51b for connecting pipes through which the refrigerant flows, and connection ports 60 for connecting pipes for discharging drain water. The connection ports 51a and 51b are connected to the heat exchanger 5. The connection port 60 is connected to the drain pump 6.
送風装置4は、ファンモータ40と、一対のファンユニット41a,41bと、回転軸42とを備えている。ファンユニット41a,41bは、ファンモータ40を挟んで向かい合うように配置されている。回転軸42は、ファンモータ40によって回転可能に支持されており、両端がそれぞれファンユニット41a,41bに向けて延出している。なお、送風装置4が備えるファンユニットの数は、2つに限定されない。
The blower device 4 includes a fan motor 40, a pair of fan units 41a and 41b, and a rotating shaft 42. The fan units 41a and 41b are arranged so as to face each other with the fan motor 40 in between. The rotating shaft 42 is rotatably supported by a fan motor 40, and both ends extend toward the fan units 41a and 41b, respectively. The number of fan units included in the blower 4 is not limited to two.
図2および図3に示すように、ファンユニット41a,41bは、回転軸42に接続された多翼ファン43と、多翼ファン43を収容するファンケース44とを備えている。ファンケース44は、吸気孔45およびノズル部46を有している。ノズル部46は、熱交換室Bに開口するとともに、熱交換器5と向かい合っている。
As shown in FIGS. 2 and 3, the fan units 41a and 41b include a multi-blade fan 43 connected to the rotating shaft 42 and a fan case 44 accommodating the multi-blade fan 43. The fan case 44 has an intake hole 45 and a nozzle portion 46. The nozzle portion 46 opens into the heat exchange chamber B and faces the heat exchanger 5.
図3に示すように、熱交換器5は、複数の板状のフィン52と、冷媒が流れる複数の伝熱管53とを備えている。各フィン52は、送風室A側の一端が他端よりも下方(パネル3に向かう方向)に位置するように傾斜している。複数のフィン52は、室内ユニット1の長手方向(第1側板21から第2側板22に向かう方向)に並んでいる。複数の伝熱管53は、室内ユニット1の長手方向に延びており、各フィン52を貫通している。
As shown in FIG. 3, the heat exchanger 5 includes a plurality of plate-shaped fins 52 and a plurality of heat transfer tubes 53 through which a refrigerant flows. Each fin 52 is inclined so that one end on the blower chamber A side is located below the other end (in the direction toward the panel 3). The plurality of fins 52 are arranged in the longitudinal direction of the indoor unit 1 (direction from the first side plate 21 to the second side plate 22). The plurality of heat transfer tubes 53 extend in the longitudinal direction of the indoor unit 1 and penetrate each fin 52.
各伝熱管53を含む熱交換器5の流路は、接続口51a,51bに接続されている。すなわち、接続口51a,51bの一方から供給される冷媒は、各伝熱管53を通った後、接続口51a,51bの他方へと排出される。
The flow path of the heat exchanger 5 including each heat transfer tube 53 is connected to the connection ports 51a and 51b. That is, the refrigerant supplied from one of the connection ports 51a and 51b is discharged to the other of the connection ports 51a and 51b after passing through each heat transfer tube 53.
送風室Aは、吸込み口31に通じている。多翼ファン43が回転すると、空気が吸込み口31を通じて送風室Aに取り込まれる。さらに、当該空気は、吸気孔45を通じて多翼ファン43の内側に吸い込まれ、ノズル部46から熱交換器5に向けて吹き出される。熱交換器5は、当該空気を冷気または暖気の熱交換空気に変える。熱交換空気は、吹出し口32を通じて空調対象の空間に送り出される。
The blower chamber A leads to the suction port 31. When the multi-blade fan 43 rotates, air is taken into the air blowing chamber A through the suction port 31. Further, the air is sucked into the inside of the multi-blade fan 43 through the intake hole 45 and blown out from the nozzle portion 46 toward the heat exchanger 5. The heat exchanger 5 converts the air into cold or warm heat exchange air. The heat exchange air is sent out to the space to be air-conditioned through the outlet 32.
続いて、熱交換器5の固定構造について説明する。
図2に示すように、熱交換器5は、第1側板21側の第1端部5aと、第2側板22側の第2端部5bとを有している。第1端部5aは、熱交換器5と第1側板21との間に配置された第1保持具71によって保持されている。第2端部5bは、熱交換器5と第2側板22との間に配置された第2保持具72によって保持されている。 Subsequently, the fixed structure of theheat exchanger 5 will be described.
As shown in FIG. 2, theheat exchanger 5 has a first end portion 5a on the first side plate 21 side and a second end portion 5b on the second side plate 22 side. The first end portion 5a is held by a first holder 71 arranged between the heat exchanger 5 and the first side plate 21. The second end portion 5b is held by a second holder 72 arranged between the heat exchanger 5 and the second side plate 22.
図2に示すように、熱交換器5は、第1側板21側の第1端部5aと、第2側板22側の第2端部5bとを有している。第1端部5aは、熱交換器5と第1側板21との間に配置された第1保持具71によって保持されている。第2端部5bは、熱交換器5と第2側板22との間に配置された第2保持具72によって保持されている。 Subsequently, the fixed structure of the
As shown in FIG. 2, the
図4は、図2における熱交換器5、第1保持具71および第2保持具72を拡大して示す概略的な斜視図である。以下、説明の便宜のために、図4中に示すようにX方向、Y方向およびZ方向を定義する。X方向は、第1端部5aから第2端部5bに向かう方向であり、熱交換器5の長手方向に相当する。Y方向は、熱交換器5の短手方向に相当する。Z方向は、熱交換器5の高さ方向に相当し、室内ユニット1を天井に取り付けた際の重力方向と一致する。
FIG. 4 is a schematic perspective view showing the heat exchanger 5, the first holder 71, and the second holder 72 in FIG. 2 in an enlarged manner. Hereinafter, for convenience of explanation, the X direction, the Y direction, and the Z direction are defined as shown in FIG. The X direction is the direction from the first end portion 5a to the second end portion 5b, and corresponds to the longitudinal direction of the heat exchanger 5. The Y direction corresponds to the lateral direction of the heat exchanger 5. The Z direction corresponds to the height direction of the heat exchanger 5 and coincides with the gravity direction when the indoor unit 1 is mounted on the ceiling.
熱交換器5は、第1端部5aから突出する第1ブラケット54および第2ブラケット55と、第2端部5bから突出する第3ブラケット56とを備えている。第1ブラケット54および第2ブラケット55は、互いに平行であるとともに、Y方向およびZ方向と交差する方向に延びている。第3ブラケット56も同様に、Y方向およびZ方向と交差する方向に延びている。
The heat exchanger 5 includes a first bracket 54 and a second bracket 55 protruding from the first end portion 5a, and a third bracket 56 protruding from the second end portion 5b. The first bracket 54 and the second bracket 55 are parallel to each other and extend in a direction intersecting the Y direction and the Z direction. Similarly, the third bracket 56 extends in a direction intersecting the Y direction and the Z direction.
第1保持具71と第1ブラケット54は、複数のねじS1によって連結されている。第2保持具72は、例えばL字型に曲げられた板金で構成され、X方向に延びる第1部分72aと、第2方向Yに延びる第2部分72bとを有している。第1部分72aは、例えば上述の天板20または第2側板22に連結される。第2部分72bの先端部が第3ブラケット56の裏側に曲げられており、当該先端部と第3ブラケット56とが1つまたは複数のねじS2によって連結されている。第1部分72aと第2部分72bとで形成されるスペースには、熱交換器5と接続口51a,51bとを繋ぐ配管等が配置されている。
The first holder 71 and the first bracket 54 are connected by a plurality of screws S1. The second holder 72 is composed of, for example, an L-shaped bent sheet metal, and has a first portion 72a extending in the X direction and a second portion 72b extending in the second direction Y. The first portion 72a is connected to, for example, the above-mentioned top plate 20 or the second side plate 22. The tip of the second portion 72b is bent to the back side of the third bracket 56, and the tip and the third bracket 56 are connected by one or a plurality of screws S2. In the space formed by the first portion 72a and the second portion 72b, pipes and the like connecting the heat exchanger 5 and the connection ports 51a and 51b are arranged.
図5ないし図7は、第1保持具71の概略的な斜視図である。第1保持具71は、第1部材80と、第2部材90とを備えている。各図においては、第1部材80に斜線を付している。
5 to 7 are schematic perspective views of the first holder 71. The first holder 71 includes a first member 80 and a second member 90. In each figure, the first member 80 is shaded.
第1部材80は、第2部材90よりも剛性に優れた樹脂材料で形成されている。第2部材90は、第1部材80よりも断熱性に優れた樹脂材料で形成されている。例えば、第1部材80としては、ABS樹脂やPS樹脂を用いることができる。また、第2部材90としては、発泡プラスチックの一種である発泡スチロールを用いることができる。
The first member 80 is made of a resin material having higher rigidity than the second member 90. The second member 90 is made of a resin material having better heat insulating properties than the first member 80. For example, ABS resin or PS resin can be used as the first member 80. Further, as the second member 90, Styrofoam, which is a kind of foamed plastic, can be used.
第1部材80と第2部材90は、一体成形品であってもよい。この場合、例えば射出成形により第1部材80を作成した後に、当該第1部材80を第1保持具71の形状の金型に収容し、第2部材90を当該金型内で発泡成形することで第1保持具71を製造できる。第1部材80と第2部材90とが一体成形品であれば、接着剤を介さずに両者を一体化することが可能である。さらに、第1部材80と第2部材90の間に隙間が生じない。
The first member 80 and the second member 90 may be integrally molded products. In this case, for example, after the first member 80 is produced by injection molding, the first member 80 is housed in a mold having the shape of the first holder 71, and the second member 90 is foam-molded in the mold. The first holder 71 can be manufactured. If the first member 80 and the second member 90 are integrally molded products, they can be integrated without using an adhesive. Further, there is no gap between the first member 80 and the second member 90.
第2部材90は、扁平な板状の基部91を有している。基部91は、図5に示す第1面91aと、図7に示す第2面91bとを有している。さらに、第2部材90は、第1面91aからX方向に突出する第1凸部92および第2凸部93を有している。第1凸部92は、基部91に向けて窪んだ第1凹部92aおよび第2凹部92bを有している。図5に示す例においては、第2凹部92bの幅が第1凹部92aの幅よりも大きい。
The second member 90 has a flat plate-shaped base 91. The base 91 has a first surface 91a shown in FIG. 5 and a second surface 91b shown in FIG. 7. Further, the second member 90 has a first convex portion 92 and a second convex portion 93 protruding from the first surface 91a in the X direction. The first convex portion 92 has a first concave portion 92a and a second concave portion 92b that are recessed toward the base portion 91. In the example shown in FIG. 5, the width of the second recess 92b is larger than the width of the first recess 92a.
第1部材80は、Y方向およびZ方向に対して傾斜したプレート部81を有している。図5および図7に示すように、X方向におけるプレート部81の両端は、それぞれ第2部材90から露出している。すなわち、プレート部81は、第2部材90をX方向に貫通している。
The first member 80 has a plate portion 81 inclined with respect to the Y direction and the Z direction. As shown in FIGS. 5 and 7, both ends of the plate portion 81 in the X direction are each exposed from the second member 90. That is, the plate portion 81 penetrates the second member 90 in the X direction.
プレート部81の基部91から突出した部分は、図6に示す第1支持面F1と、図5に示す裏面RFとを有している。第1支持面F1は、その大部分が第2部材90から露出している。一方、裏面RFは、第1凹部92aおよび第2凹部92bに対応する領域を除き、第1凸部92で覆われている。
The portion of the plate portion 81 protruding from the base portion 91 has a first support surface F1 shown in FIG. 6 and a back surface RF shown in FIG. Most of the first support surface F1 is exposed from the second member 90. On the other hand, the back surface RF is covered with the first convex portion 92 except for the region corresponding to the first concave portion 92a and the second concave portion 92b.
図5に示すように、第2凸部93は、第1支持面F1に対向する第2支持面F2を有している。第2支持面F2は、第1支持面F1と平行である。図示したように、第2支持面F2に複数の凹部が適宜に設けられてもよい。第1支持面F1と第2支持面F2の間には、熱交換器5の第1端部5aを挿入するための溝GRが形成される。
As shown in FIG. 5, the second convex portion 93 has a second support surface F2 facing the first support surface F1. The second support surface F2 is parallel to the first support surface F1. As shown, a plurality of recesses may be appropriately provided on the second support surface F2. A groove GR for inserting the first end portion 5a of the heat exchanger 5 is formed between the first support surface F1 and the second support surface F2.
プレート部81は、第1凹部92aおよび第2凹部92bに対応する領域において、複数の貫通孔82を有している。図5および図6の例においては、第1凹部92aに対応する領域に1つの貫通孔82が設けられ、第2凹部92bに対応する領域に2つの貫通孔82が設けられている。
The plate portion 81 has a plurality of through holes 82 in the region corresponding to the first recess 92a and the second recess 92b. In the examples of FIGS. 5 and 6, one through hole 82 is provided in the region corresponding to the first recess 92a, and two through holes 82 are provided in the region corresponding to the second recess 92b.
図5ないし図7に示すように、第1部材80は、裏面RFから突出する3つの第1リブ83を有している。これら第1リブ83のX方向における両端、それぞれ第2部材90から露出している。すなわち、第1リブ83は、第2部材90(第1凸部92)をX方向に貫通している。
As shown in FIGS. 5 to 7, the first member 80 has three first ribs 83 protruding from the back surface RF. Both ends of the first rib 83 in the X direction are exposed from the second member 90, respectively. That is, the first rib 83 penetrates the second member 90 (first convex portion 92) in the X direction.
図6に示すように、第1部材80は、プレート部81から突出する5つの第2リブ84をさらに有している。これら第2リブ84は、第1凸部92の内部において、X方向に延びている。なお、第2リブ84は、第1支持面F1には及んでいない。したがって、第2リブ84のX方向における長さは、第1リブ83のX方向における長さよりも短い。
As shown in FIG. 6, the first member 80 further has five second ribs 84 protruding from the plate portion 81. These second ribs 84 extend in the X direction inside the first convex portion 92. The second rib 84 does not reach the first support surface F1. Therefore, the length of the second rib 84 in the X direction is shorter than the length of the first rib 83 in the X direction.
図7に示すように、第1部材80は、プレート部81から各第1リブ83とは反対方向に突出する3つの第3リブ85をさらに有している。各第3リブ85は、基部91の内部においてX方向に延びている。
As shown in FIG. 7, the first member 80 further has three third ribs 85 protruding from the plate portion 81 in the direction opposite to each first rib 83. Each third rib 85 extends in the X direction inside the base 91.
また、図7に示すように、第1部材80は、第2面91b側に開口する3つの雌ねじ87を有している。これら雌ねじ87の周壁は、それぞれ第3リブ85と繋がっている。なお、第1ないし第3リブ83~85および雌ねじ87の数は、図5ないし図7に示した例に限られない。
Further, as shown in FIG. 7, the first member 80 has three female threads 87 that open on the second surface 91b side. The peripheral walls of these female threads 87 are each connected to the third rib 85. The numbers of the first to third ribs 83 to 85 and the female threads 87 are not limited to the examples shown in FIGS. 5 to 7.
第1ないし第3リブ83~85により、プレート部81の強度が高められる。さらに、第1ないし第3リブ83~85により、第1部材80と第2部材90との接触面積が増えるとともに、第1部材80に加わる力が第2部材90の各所に分散される。これにより、第1部材80と第2部材90の接触面の剥がれを抑制できる。
The strength of the plate portion 81 is increased by the first to third ribs 83 to 85. Further, the first to third ribs 83 to 85 increase the contact area between the first member 80 and the second member 90, and the force applied to the first member 80 is dispersed in various parts of the second member 90. As a result, peeling of the contact surface between the first member 80 and the second member 90 can be suppressed.
第1保持具71は、図7に示す第2面91bを筐体2の第1側板21に接触させた状態で、複数のねじを第1側板21に設けられた貫通孔を通じて各雌ねじ87にねじ込むことにより、第1側板21に連結される。一方、熱交換器5は、図5に示す第1面91a側の要素と、第1ブラケット54および第2ブラケット55とにより第1保持具71に連結される。
In the first holder 71, in a state where the second surface 91b shown in FIG. 7 is in contact with the first side plate 21 of the housing 2, a plurality of screws are attached to each female screw 87 through a through hole provided in the first side plate 21. By screwing, it is connected to the first side plate 21. On the other hand, the heat exchanger 5 is connected to the first holder 71 by the element on the first surface 91a side shown in FIG. 5 and the first bracket 54 and the second bracket 55.
図8は、第1保持具71、第1ブラケット54および第2ブラケット55を連結した状態を概略的に示す図である。図8において各種の斜線を付した領域は、貫通孔82に対応する位置における第1部材80、第1凸部92、第2凸部93、第1ブラケット54および第2ブラケット55のY-Z断面に相当する。
FIG. 8 is a diagram schematically showing a state in which the first holder 71, the first bracket 54, and the second bracket 55 are connected. In FIG. 8, various shaded areas are YZ of the first member 80, the first convex portion 92, the second convex portion 93, the first bracket 54, and the second bracket 55 at positions corresponding to the through holes 82. Corresponds to the cross section.
さらに、図8においては、室内ユニット1が天井に取り付けられた状態と同様に、Z方向(重力方向)が図中の下方を向いた状態を表している。すなわち、図中右側の矢印で示す方向に送風室Aが位置し、図中下側の矢印で示す方向にパネル3が位置する。
Further, in FIG. 8, the Z direction (gravity direction) faces downward in the figure as in the state where the indoor unit 1 is mounted on the ceiling. That is, the blower chamber A is located in the direction indicated by the arrow on the right side in the figure, and the panel 3 is located in the direction indicated by the arrow on the lower side in the figure.
各支持面F1,F2および各ブラケット54,55は、いずれも送風室A側の一端が他端よりもパネル3に近くなるように傾斜している。当該送風室A側の一端に向けてドレン水が流れた場合でも、このドレン水は上述のドレンパン50によって受けられる。
Each of the support surfaces F1 and F2 and the brackets 54 and 55 are inclined so that one end on the blower chamber A side is closer to the panel 3 than the other end. Even when the drain water flows toward one end on the air blowing chamber A side, the drain water is received by the above-mentioned drain pan 50.
第1ブラケット54および第2ブラケット55は、第1支持面F1と第2支持面F2との間の溝GRに挿入されている。第1ブラケット54は、第1支持面F1に接触している。第2ブラケット55は、第2支持面F2に接触している。
The first bracket 54 and the second bracket 55 are inserted into the groove GR between the first support surface F1 and the second support surface F2. The first bracket 54 is in contact with the first support surface F1. The second bracket 55 is in contact with the second support surface F2.
第1ブラケット54は、第1部材80の各貫通孔82に対応する位置に雌ねじ54aを有している。図4にも示したねじS1は、貫通孔82を通り、雌ねじ54aにねじ込まれている。図8の例においては、第2凹部92bに対応する2組の貫通孔82および雌ねじ54aの一方にねじS1が挿入され、他方には挿入されていない。ただし、これら2組の貫通孔82および雌ねじ54aの双方に対してねじS1がそれぞれ挿入されてもよい。
The first bracket 54 has a female screw 54a at a position corresponding to each through hole 82 of the first member 80. The screw S1 also shown in FIG. 4 passes through the through hole 82 and is screwed into the female screw 54a. In the example of FIG. 8, the screw S1 is inserted into one of the two sets of through holes 82 and the female screw 54a corresponding to the second recess 92b, and is not inserted into the other. However, the screw S1 may be inserted into both of these two sets of through holes 82 and the female screw 54a, respectively.
第1支持面F1は、第1ブラケット54と下方のパネル3との間に位置している。したがって、第1支持面F1が第1ブラケット54を介して熱交換器5の荷重を受ける。また、第2ブラケット55が第2支持面F2に接触していることから、熱交換器5のY方向やZ方向へのがたつきが抑制される。
The first support surface F1 is located between the first bracket 54 and the lower panel 3. Therefore, the first support surface F1 receives the load of the heat exchanger 5 via the first bracket 54. Further, since the second bracket 55 is in contact with the second support surface F2, rattling of the heat exchanger 5 in the Y direction and the Z direction is suppressed.
仮に、第1保持具71に代えて板金で熱交換器5の第1端部5aと第1側板21とを連結した場合、当該板金を介した伝熱によって第1側板21が冷やされ、第1側板21の内外に結露が生じ得る。この結露水は、ドレンパン50にて受けることが難しいため、パネル3の上面に溜ったり、室内ユニット1から滴下したりする可能性がある。
If the first end portion 5a of the heat exchanger 5 and the first side plate 21 are connected by a sheet metal instead of the first holder 71, the first side plate 21 is cooled by heat transfer through the sheet metal, and the first side plate 21 is cooled. Condensation may occur inside and outside the 1 side plate 21. Since it is difficult for the drain pan 50 to receive this condensed water, there is a possibility that it may collect on the upper surface of the panel 3 or drip from the indoor unit 1.
これに対し、本実施形態のように樹脂製の第1保持具71にて熱交換器5の第1端部5aを保持する場合、金属材料に比べて樹脂材料の熱伝導率が低いことから、第1側板21や第1保持具71における結露水の発生を抑制できる。
On the other hand, when the first end portion 5a of the heat exchanger 5 is held by the first resin holder 71 as in the present embodiment, the thermal conductivity of the resin material is lower than that of the metal material. , The generation of dew condensation water on the first side plate 21 and the first holder 71 can be suppressed.
熱交換器5の荷重は、主に剛性に優れた第1部材80によって受けられるため、熱交換器5を安定的に支持することができる。また、断熱性に優れた第2部材90が、熱交換器5と第1側板21との間に介在するとともに、第1部材80の一部を覆っている。これにより、熱交換器5からの冷気が第1側板21に伝わりにくくなり、第1側板21における結露の発生をより確実に抑制できる。
Since the load of the heat exchanger 5 is mainly received by the first member 80 having excellent rigidity, the heat exchanger 5 can be stably supported. Further, the second member 90 having excellent heat insulating properties is interposed between the heat exchanger 5 and the first side plate 21 and covers a part of the first member 80. As a result, the cold air from the heat exchanger 5 is less likely to be transmitted to the first side plate 21, and the occurrence of dew condensation on the first side plate 21 can be more reliably suppressed.
第1部材80と第2部材90とが一体成形品であれば、両者の間に隙間が生じない。したがって、熱交換器5からの冷気をより好適に遮断することができる。上述の通り、第1部材80に第1ないし第3リブ83~85を設けることで、第1部材80の強度が高められるとともに、第1部材80と第2部材90の接触面の剥がれを抑制できる。
If the first member 80 and the second member 90 are integrally molded products, there will be no gap between them. Therefore, the cold air from the heat exchanger 5 can be more preferably shut off. As described above, by providing the first to third ribs 83 to 85 on the first member 80, the strength of the first member 80 is increased and the peeling of the contact surface between the first member 80 and the second member 90 is suppressed. it can.
なお、仮に第1部材80と第2部材90とを接着剤にて接着する場合、熱交換器5の熱伸縮に起因した力による第1部材80と第2部材90の界面の剥がれや、この剥がれに伴う異音が生じ得る。しかしながら、第1部材80と第2部材90とが一体成形品であれば、このような問題が生じにくい。
If the first member 80 and the second member 90 are bonded with an adhesive, the interface between the first member 80 and the second member 90 may be peeled off due to the force caused by the thermal expansion and contraction of the heat exchanger 5. Abnormal noise may occur due to peeling. However, if the first member 80 and the second member 90 are integrally molded products, such a problem is unlikely to occur.
本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。
Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.
例えば、第1保持具71の構造は、熱交換器5の第1端部5aの形状や、第1端部5aに設けられるブラケットの形状に応じて、種々の態様に変形できる。
For example, the structure of the first holder 71 can be deformed in various ways depending on the shape of the first end portion 5a of the heat exchanger 5 and the shape of the bracket provided on the first end portion 5a.
上述の実施形態においては、熱交換器5の第2端部5bは板金の第2保持具72で保持されるとした。しかしながら、第2端部5bについても第1端部5aと同じく樹脂製の保持具にて保持されてもよい。
In the above-described embodiment, the second end portion 5b of the heat exchanger 5 is held by the second holder 72 of the sheet metal. However, the second end portion 5b may also be held by a resin holder like the first end portion 5a.
上述の実施形態においては、天井埋め込み型の室内ユニットにおける熱交換器5の保持構造を開示した。この保持構造は、天井埋め込み型だけでなく、他種の室内ユニットにも適用できる。
In the above-described embodiment, the holding structure of the heat exchanger 5 in the ceiling-embedded indoor unit is disclosed. This holding structure can be applied not only to the ceiling-embedded type but also to other types of indoor units.
1…室内ユニット、2…筐体、3…パネル、4…送風装置、5…熱交換器、21~24…第1~第4側板、54…第1ブラケット、55…第2ブラケット、71…第1保持具、72…第2保持具、80…第1部材、81…プレート部、82…貫通孔、83~85…第1~第3リブ、87…雌ねじ、90…第2部材、F1…第1支持面、F2…第2支持面、RF…裏面。
1 ... Indoor unit, 2 ... Housing, 3 ... Panel, 4 ... Blower, 5 ... Heat exchanger, 21-24 ... 1st to 4th side plates, 54 ... 1st bracket, 55 ... 2nd bracket, 71 ... 1st retainer, 72 ... 2nd retainer, 80 ... 1st member, 81 ... Plate part, 82 ... Through hole, 83-85 ... 1st to 3rd ribs, 87 ... Female screw, 90 ... Second member, F1 ... 1st support surface, F2 ... 2nd support surface, RF ... Back surface.
Claims (6)
- 側板を含む筐体と、
前記筐体に収容され、前記側板に対向する端部を有する熱交換器と、
前記熱交換器の前記端部を保持する保持具と、を備え、
前記保持具は、
樹脂材料で構成され、前記熱交換器の前記端部と前記側板とを連結する第1部材と、
発泡プラスチックで構成され、前記熱交換器と前記側板の間に介在するとともに、前記第1部材の少なくとも一部を覆う第2部材と、
を備える、空気調和機の室内ユニット。 The housing including the side plate and
A heat exchanger housed in the housing and having an end facing the side plate.
A retainer for holding the end of the heat exchanger.
The holder is
A first member composed of a resin material and connecting the end portion of the heat exchanger and the side plate, and
A second member which is made of foamed plastic, is interposed between the heat exchanger and the side plate, and covers at least a part of the first member.
An indoor unit of an air conditioner equipped with. - 空気の吸込み口と吹出し口を有し、前記筐体の下面を覆うパネルを備え、
前記熱交換器は、前記端部に設けられた第1ブラケットを備え、
前記第1部材は、前記パネルと前記第1ブラケットの間に位置するとともに前記第1ブラケットを介して前記熱交換器の荷重を受ける第1支持面を有する、
請求項1に記載の室内ユニット。 It has an air inlet and outlet, and has a panel that covers the lower surface of the housing.
The heat exchanger includes a first bracket provided at the end thereof.
The first member is located between the panel and the first bracket and has a first support surface that receives the load of the heat exchanger through the first bracket.
The indoor unit according to claim 1. - 前記熱交換器は、前記端部に設けられた第2ブラケットをさらに備え、
前記第2部材は、前記第1支持面と対向する第2支持面を有し、
前記第2ブラケットは、前記第2支持面に接触している、
請求項2に記載の室内ユニット。 The heat exchanger further comprises a second bracket provided at the end.
The second member has a second support surface facing the first support surface.
The second bracket is in contact with the second support surface.
The indoor unit according to claim 2. - 前記第1部材は、前記第1支持面の反対側の裏面と、前記裏面から突出するリブと、を有し、
前記第2部材は、前記裏面の少なくとも一部および前記リブを覆っている、
請求項2に記載の室内ユニット。 The first member has a back surface on the opposite side of the first support surface and a rib protruding from the back surface.
The second member covers at least a part of the back surface and the rib.
The indoor unit according to claim 2. - 前記筐体は、前記熱交換器を収容する熱交換室と、送風装置を収容する送風室とを有し、
前記熱交換室および前記送風室は、前記側板に沿って並び、
前記第1支持面は、前記熱交換室に位置し、前記送風室側の一端が他端よりも前記パネルに近くなるように傾斜している、
請求項2に記載の室内ユニット。 The housing has a heat exchange chamber for accommodating the heat exchanger and a blower chamber for accommodating a blower.
The heat exchange chamber and the blower chamber are arranged along the side plate.
The first support surface is located in the heat exchange chamber and is inclined so that one end on the blower chamber side is closer to the panel than the other end.
The indoor unit according to claim 2. - 前記保持具は、前記第1部材と前記第2部材の一体成形品である、
請求項1ないし5のうちいずれか1項に記載の室内ユニット。 The holder is an integrally molded product of the first member and the second member.
The indoor unit according to any one of claims 1 to 5.
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JP2021508513A JP7160412B2 (en) | 2019-03-26 | 2019-03-26 | Air conditioner indoor unit |
PCT/JP2019/013028 WO2020194557A1 (en) | 2019-03-26 | 2019-03-26 | Indoor unit for air-conditioning apparatus |
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PCT/JP2019/013028 WO2020194557A1 (en) | 2019-03-26 | 2019-03-26 | Indoor unit for air-conditioning apparatus |
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Citations (5)
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JPS5796018U (en) * | 1980-12-05 | 1982-06-12 | ||
JPS6134017U (en) * | 1984-07-30 | 1986-03-01 | ダイキン工業株式会社 | Heat exchanger mounting structure |
JPH09166335A (en) * | 1995-12-14 | 1997-06-24 | Zexel Corp | Indoor machine for air conditioner |
JP2000104943A (en) * | 1998-09-30 | 2000-04-11 | Daikin Ind Ltd | Air-conditioning unit |
CN202792244U (en) * | 2012-07-05 | 2013-03-13 | 大金工业株式会社 | Air-conditioner indoor unit |
-
2019
- 2019-03-26 WO PCT/JP2019/013028 patent/WO2020194557A1/en active Application Filing
- 2019-03-26 JP JP2021508513A patent/JP7160412B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5796018U (en) * | 1980-12-05 | 1982-06-12 | ||
JPS6134017U (en) * | 1984-07-30 | 1986-03-01 | ダイキン工業株式会社 | Heat exchanger mounting structure |
JPH09166335A (en) * | 1995-12-14 | 1997-06-24 | Zexel Corp | Indoor machine for air conditioner |
JP2000104943A (en) * | 1998-09-30 | 2000-04-11 | Daikin Ind Ltd | Air-conditioning unit |
CN202792244U (en) * | 2012-07-05 | 2013-03-13 | 大金工业株式会社 | Air-conditioner indoor unit |
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