CN116457618A - Indoor unit of air conditioner - Google Patents
Indoor unit of air conditioner Download PDFInfo
- Publication number
- CN116457618A CN116457618A CN202080106737.5A CN202080106737A CN116457618A CN 116457618 A CN116457618 A CN 116457618A CN 202080106737 A CN202080106737 A CN 202080106737A CN 116457618 A CN116457618 A CN 116457618A
- Authority
- CN
- China
- Prior art keywords
- drain
- drain pan
- screw
- indoor unit
- hose
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000005057 refrigeration Methods 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 239000011810 insulating material Substances 0.000 claims 2
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 description 13
- 210000000078 claw Anatomy 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
-
- 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
-
- 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
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/32—Details or features not otherwise provided for preventing human errors during the installation, use or maintenance, e.g. goofy proof
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
An indoor unit of an air conditioner is provided with: a unit main body having a suction port and a blow-out port, for accommodating the heat exchanger and the blower therein, and mounted on a wall surface of the room; a drain pan disposed at a lower portion of the heat exchanger and receiving drain water generated and dropped in the heat exchanger in association with a refrigeration cycle operation; and a drain hose connected to the drain pan, for discharging the drain received by the drain pan to the outside of the unit body. The unit body or the drain pan has a fixing portion for positioning and fixing the drain hose. The drain hose has a fixed portion positioned and fixed to the fixed portion. The fixed part and the fixed part are provided with a combining mechanism which is approaching from the direction facing the wall surface and combines the fixed part and the fixed part.
Description
Technical Field
Embodiments of the present invention relate to an indoor unit of an air conditioner.
Background
For example, an air conditioner includes a wall-mounted indoor unit that is installed at a high indoor position of a building, mainly on a wall surface. The indoor unit is provided with: a heat exchanger for performing heat exchange between the refrigerant and indoor air; a fan that blows air whose temperature has been adjusted by heat exchange into the room. By operating the refrigeration cycle, the air sucked into the housing of the indoor unit from the suction port by the fan is temperature-adjusted by the heat exchanger. The temperature-regulated air is blown out from the air outlet toward the room, whereby the room is temperature-regulated.
A drain pan is provided at a lower portion of the heat exchanger. The drain pan receives drain generated by the heat exchanger and dropped during cooling operation and dehumidifying operation of the air conditioner. The drain pan is connected with a drain hose. One end of the drain hose is connected to the drain pan, extends from one end to the outside of the indoor unit, and discharges drain from the other end to the outside of the indoor unit.
Here, in order to achieve maintenance of air conditioning performance or the like, it is desirable to regularly clean the inside of the indoor unit. For example, in the case of cleaning the drain pan, it is necessary to first remove the drain hose from the drain pan, and then remove the drain pan from which the drain hose has been removed from the unit body. Therefore, it is required to reduce the trouble of cleaning the inside of the indoor unit and to improve the workability.
Prior art literature
Patent literature
Patent document 1: japanese patent No. 4274919
Disclosure of Invention
Problems to be solved by the invention
The present invention has been made in view of the above, and an object of the present invention is to provide an indoor unit of an air conditioner capable of reducing the trouble in cleaning the inside of the indoor unit and improving the workability.
Means for solving the problems
According to an embodiment, an indoor unit of an air conditioner includes: a unit main body having a suction port and a blow-out port, for accommodating the heat exchanger and the blower therein, and mounted on a wall surface of the room; a drain pan disposed at a lower portion of the heat exchanger and receiving drain water generated and dropped in the heat exchanger in association with a refrigeration cycle operation; and a drain hose connected to the drain pan, for discharging the drain received by the drain pan to the outside of the unit main body. The unit main body or the drain pan has a fixing portion for positioning and fixing the drain hose. The drain hose has a fixed portion positioned and fixed to the fixing portion. The fixed portion and the fixed portion have coupling means which are brought close to each other from a direction toward the mounting surface to couple the fixed portion and the fixed portion.
Drawings
Fig. 1 is a circuit diagram showing a refrigeration cycle of an air conditioner according to an embodiment.
Fig. 2 is an exploded perspective view schematically showing the structure of an indoor unit of an air conditioner according to the embodiment from above and obliquely to the right.
Fig. 3 is a cross-sectional view of an indoor unit of an air conditioner according to an embodiment.
Fig. 4 is a view showing a state in which a drain pan (2 nd drain pan) is separated from a unit main body in an indoor unit of an air conditioner according to an embodiment.
Fig. 5 is a partial enlarged view of fig. 4 showing a schematic configuration of a fixing portion of a drain pan (2 nd drain pan) of an indoor unit of an air conditioner according to an embodiment.
Fig. 6 is a view showing a state in which a drain pan (2 nd drain pan) is attached to a unit main body of an indoor unit of an air conditioner according to the embodiment.
Fig. 7A schematically shows a configuration example in the vicinity of the distal end of the drain hose according to the embodiment.
Fig. 7B schematically shows a configuration example of the vicinity of the distal end of the drain hose according to the embodiment from the direction of arrow 7A in fig. 7A.
Fig. 8 is a view schematically showing a screw fastening method in a case where a drain hose is attached to or detached from a drain pan (2 nd drain pan) in an indoor unit of an air conditioner according to an embodiment.
Fig. 9 is a diagram schematically showing a configuration in which a drain hose is connected to a drain pan (2 nd drain pan) in an indoor unit of an air conditioner according to an embodiment.
Fig. 10 is a view schematically showing a configuration in which a drain hose is removed from a drain pan (2 nd drain pan) in an indoor unit of an air conditioner according to an embodiment.
Detailed Description
An embodiment of the present invention will be described below with reference to fig. 1 to 10.
In fig. 1, an air conditioner 1 includes an outdoor unit 2 and an indoor unit 3. The outdoor unit 2 and the indoor unit 3 are connected by a circulation path 4 formed of copper piping or the like through which the refrigerant circulates. The outdoor unit 2 includes a compressor 21, a four-way valve 22, an outdoor heat exchanger 23, an outdoor blower 24, an expansion device 25, and a reservoir 26 as main components. The indoor unit 3 includes an indoor heat exchanger 61 and an indoor air blowing device 62 as main components.
As shown in fig. 1, the discharge side of the compressor 21 is connected to the 1 st port 22a of the four-way valve 22. The 2 nd port 22b of the four-way valve 22 is connected to the outdoor heat exchanger 23. The outdoor heat exchanger 23 is connected to the indoor heat exchanger 31 via an expansion device 25. The indoor heat exchanger 31 is connected to the 3 rd port 22c of the four-way valve 22. The 4 th port 22d of the four-way valve 22 is connected to the suction side of the compressor 21 via the accumulator 26.
The refrigerant circulates in the circulation path 4 from the discharge side of the compressor 21 to the suction side via the outdoor heat exchanger 23, the expansion device 25, the indoor heat exchanger 31, and the accumulator 26. By switching the communication between the ports 22a to 22d of the four-way valve 22, the refrigerant circulates in the circulation path 4 in the reverse direction from the four-way valve 22. Thereby, the operation mode of the air conditioner 1 is appropriately switched to the cooling operation, the heating operation, and the like.
In fig. 2 and 3, the direction indicated by the arrow Fr in fig. 2 and 3 is defined as front, the direction indicated by the arrow Lh is defined as left, the direction indicated by the arrow Up is defined as Up, and the directions opposite to the directions indicated by the arrows Fr, lh, up are defined as back, right, and down. The direction indicated by the arrow Fr corresponds to the depth direction, the direction indicated by the arrow Lh corresponds to the width direction, and the direction indicated by the arrow Up corresponds to the height direction.
As shown in fig. 2 and 3, the indoor unit 3 is provided on a wall surface, and is mounted on a mounting surface W, which is a high wall surface in a building. The indoor unit 3 includes an attachment plate 5, a unit body 6, a frame 7, and a front panel 8.
The mounting plate 5 is, for example, a plate-like member formed by sheet metal into a predetermined shape along a rear plate 65 of the unit main body 6 described later and having a plurality of mounting holes. The mounting plate 5 is fixed to a wall surface W serving as a mounting surface by screws or the like inserted through the mounting holes, and serves as a base for mounting the unit main body 6 to the wall surface W. The unit main body 6 is attached to the attachment plate 5 by an attachment member such as a hook claw or a screw provided on the back plate 65, and is attached to the wall surface W via the attachment plate 5.
The frame 7 covers the unit main body 6 and defines the outer contour of the indoor unit 3. The frame 7 includes a top 7a, a bottom 7b, a front 7c, a left side 7d, and a right side 7e. The rear side (back side) of the housing 7 is formed to be opened as a storage opening when the unit main body 6 is stored by the respective portions 7a to 7e. The frame 7 is held by the unit main body 6 by fitting the inner peripheral edge of the receiving opening into the outer peripheral edge of the back plate 65. At this time, the inner peripheral edge of the receiving opening is elastically brought into close contact with the outer peripheral edge of the back plate 65, thereby firmly integrating the frame 7 with the unit main body 6. Thereby, the frame 7 is covered on the unit body 6 so as to house the unit body 6.
The top 7a extends in the width direction and the depth direction, and defines an upper surface of the indoor unit 3, and has an opening portion of the suction port 71 for indoor air. The bottom portion 7b extends in the width direction and the depth direction, and defines the lower surface of the indoor unit 3, and has an opening portion at its central portion, which serves as a blowout port 72 for the temperature-regulated air. The front portion 7c extends in the width direction and the height direction, respectively, and defines the front surface of the indoor unit 3, and has an opening that becomes a part of the suction port 71. The left side portion 7d extends in the depth direction and the height direction, respectively, and defines a left side surface of the indoor unit 3. The right side portion 7e extends in the depth direction and the height direction, defines the right side surface of the indoor unit 3, and faces the left side portion 7d in the width direction.
A filter 73 for filtering dust in the air in the room is detachably provided in each opening of the top 7a and the front 7 c. The filter 73 is disposed at the top 7a and the front 7c so as to cover the suction port 71, and faces the fins 611 of the indoor heat exchanger 61 described later.
The left and right side portions 7d and 7e are formed in a shape that is curved and bulged from a part of the width-direction end of the front portion 7c to the wall surface W. Thus, the side surfaces of the indoor unit 3 are formed in a smoothly continuous manner without a step between the front surface of the indoor unit 3 defined by the front portion 7c and the wall surface W. Thus, the indoor unit 3 is integrated so as to smoothly bulge out from the wall surface W and form substantially the same surface as the wall surface W in appearance.
The left and right side portions 7d and 7e have screw receiving portions 7f for fixing the frame 7 to the wall surface W. The screw receiving portion 7f is formed with a through hole through which the screw X is inserted. The frame 7 is covered on the unit main body 6 so as to house the unit main body 6 in a state of being attached to the wall surface W via the attachment plate 5, and is fixed to the wall surface W by screwing the screw X inserted into the through hole of the screw receiving portion 7f into the wall surface W. At this time, a screw hole Wa is formed in the wall surface W.
A cutout 65a is formed in the back plate 65 of the unit body 6 corresponding to the position of the screw receiving portion 7f. The notch 65a is formed such that a notch portion communicates with the through hole of the screw receiving portion 7f and does not contact the screw X. The peripheral portion of the cutout 65a overlaps the peripheral portion of the through hole of the screw receiving portion 7f in the depth direction.
The front panel 8 is a member that covers the front portion 7c, the left side portion 7d, and the right side portion 7e of the frame body 7 and forms a design (appearance) of the front surface of the indoor unit 3. The front panel 8 has a panel member 8a and a fibrous member (decorative fabric) 8b.
The panel member 8a is formed in an elongated shape along each surface of the front portion 7c, the left side portion 7d, and the right side portion 7e of the frame body 7. The panel member 8a has a1 st portion 81a along the front portion 7c, a 2 nd portion 82a along the left side portion 7d, and a 3 rd portion 83a along the right side portion 7e. The 1 st portion 81a is formed in a substantially flat shape along the surface of the front portion 7c, and covers the surface of the front portion 7 c. A part of the 1 st portion 81a, specifically, a portion continuous with the 2 nd portion 82a and the 3 rd portion 83a is formed in a curved shape. A part of the 2 nd portion 82a is formed in a curved shape along the surface of the left side portion 7d, and covers the surface of the left side portion 7 d. A part of the 3 rd portion 83a is formed in a curved shape along the surface of the right side portion 7e, and covers the surface of the right side portion 7e. Thus, the panel member 8a reaches the wall surface W in a smoothly continuous manner from the 1 st portion 81a located at the center in the longitudinal direction to the 2 nd portions 82a and 3 rd portions 83a located at both side portions.
The panel member 8a is detachably and rotatably supported by the frame body 7 by a support portion 84, and is sprung in the forward direction. Thus, for example, when cleaning the suction port 71, when replacing the filter 73, or the like, the filter 73 can be exposed to the indoor side. The support portions 84 are provided near the continuous portions of the 1 st portion 81a, the 2 nd portion 82a, and the 3 rd portion 83a of the panel member 8a, respectively. The housing 7 is provided with a locking portion 74 for removably locking the support portion 84. The locking portions 74 are disposed on the left and right side portions 7d and 7e, respectively, corresponding to the positions of the support portions 84.
The fiber member 8b is a decorative cloth member that covers the front surface (surface) of the panel member 8a and forms the design (appearance) of the front surface of the indoor unit 3. As shown in fig. 3, the fiber member 8b is detachably fixed to the panel member 8a by, for example, a surface fastener 8 c. Thus, the fiber members 8b can be freely attached and detached as needed, and the appearance of the indoor unit 3 can be changed. Further, the panel member 8a can be used as a decorative panel having an external appearance without attaching the fiber member 8b. The panel member 8a is an integral resin molded product, and is similarly white or cream colored in the same color as the frame 7 of the integral resin molded product.
As shown in fig. 3, the unit main body 6 includes a heat exchanger (indoor heat exchanger) 61, an air blower (indoor air blower) 62, a drain pan 63, and a drain hose 64 (see fig. 4) as main elements. These elements are arranged and fixed to the back plate 65, respectively. The back plate 65 has a cutout 65a formed corresponding to the position of the screw receiving portion 7f of the housing 7. The notch 65a communicates with the through hole of the screw receiving portion 7f and is not in contact with the screw X. The peripheral portion of the cutout 65a overlaps the peripheral portion of the through hole of the screw receiving portion 7f in the depth direction. By screwing the screw X inserted through the through hole of the screw receiving portion 7f into the wall surface W, the peripheral portion of the cutout 65a is pressed against the wall surface W via the peripheral portion of the screw receiving portion 7f of the housing 7. Thus, at both ends in the width direction, the posture of the unit body 6 with respect to the wall surface W is stabilized, and the posture of the housing 7 is stabilized. Such a screw fastening structure is suitable for mounting the indoor unit 3 in an embodiment in which the lateral width of the mounting plate 5 is short and the lateral width of the unit main body 6 is long compared with the width of the mounting plate 5.
The indoor heat exchanger 61 includes a plurality of fins 611 and a plurality of heat transfer tubes 612 through which the refrigerant flows, and is disposed in a line within a predetermined range in the width direction of the unit main body 6. The heat sink 611 has a1 st heat sink portion 61a, a 2 nd heat sink portion 61b, and a 3 rd heat sink portion 61c. The 1 st fin portion 61a is inclined downward from the upper portion of the unit main body 6 to face the air intake port 71 opened at the top 7a of the housing 7. The 2 nd fin portion 61b is inclined downward toward the front continuously with the upper end of the 1 st fin portion 61a, and is disposed so as to face the suction port 71 and the front portion 7c of the housing 7. The 3 rd fin portion 61c is disposed so as to face the front portion 7c of the housing 7, and the lower end of the 2 nd fin portion 61b is inclined downward continuously in the rear direction.
The indoor air blowing device 62 includes a fan motor (not shown) and a fan 621. The fan 621 is configured as a cylindrical multi-wing fan (cross flow fan) extending in the width direction of the unit main body 6, and is mounted on the rotation shaft of the fan motor coaxially with the rotation shaft of the fan motor. When the fan 621 is driven to rotate by the fan motor, the air in the room is sucked into the housing 7 from the suction port 71, and when passing between the heat radiation fins 611, the air exchanges heat with the refrigerant flowing through the heat transfer pipe 612, and is cooled or heated to adjust the temperature. The temperature-regulated air is blown out into the room from the air outlet 72 formed in the bottom 7b of the housing 7.
The air outlet 72 is provided with one lateral louver 721 defining the vertical direction of the air, and a plurality of vertical louvers 722 located on the back side thereof and defining the horizontal direction of the air.
The lateral louver 721 is a movable plate material that controls the wind direction during operation and blocks the air outlet 72 during non-operation (normal operation), and is formed in a flat shape that is laterally long in the width direction. The horizontal louver 721 has a support portion 724 provided with a support shaft 723, and is operated by a driving mechanism (not shown) to open and close the air outlet 72 with respect to the indoor space around the support shaft 723. Specifically, during operation of the indoor unit 3, the lateral louver 721 is inclined downward in the forward direction so that the air outlet 72 is opened (exposed) into the room. Thus, the lateral louver 721 defines the wind direction with respect to the height direction (up-down direction). The driving mechanism includes, for example, an electric motor that rotates the horizontal louver 721 around a predetermined support shaft 723, a control board that controls the electric motor, a link member that rotates the plurality of vertical louvers 722 at the same time, and the like. The support shaft 723 is rotatably supported by a shaft receiving portion 639 provided in the drain pan 63 (specifically, a 2 nd drain pan 63b described later). The shaft receiving portion 639 protrudes from an air passage portion 633 of the 2 nd drain pan 63b described later toward the air outlet 72.
The vertical louver 722 is formed of a thin plate material for defining the direction of the air (wind) blown out from the air outlet 72 in the width direction (left-right direction), and a plurality of louver plates are arranged in the width direction. The vertical louver 722 protrudes from a part of the 1 st drain pan 63a described later toward the air outlet 72, and is rotatable. The vertical louvers 722 may be operated automatically by the same driving mechanism as the horizontal louvers 721, or may be moved manually, for example. In this case, the plurality of vertical louvers 722 may be rotated simultaneously by the link members.
The drain pan 63 is disposed below the indoor heat exchanger 61, and receives drain generated and dropped in the indoor heat exchanger 61 in association with the operation of the refrigeration cycle. The drain pan 63 includes a1 st drain pan 63a and a 2 nd drain pan 63b.
The 1 st drain pan 63a is disposed at a rear portion of the unit main body 6, supports a lower end of the 1 st fin portion 61a, and receives drain water dropped from the 1 st fin portion 61 a. The 2 nd drain pan 63b is disposed at the front portion of the unit main body 6, and supports the lower end of the 3 rd fin portion 61c, and receives drain water dropped from the 2 nd fin portion 61b and the 3 rd fin portion 61c. The 1 st drain pan 63a and the 2 nd drain pan 63b communicate with each other via a communication path (not shown) provided therebetween. Since the 1 st drain pan 63a is located relatively above and the 2 nd drain pan 63b is located relatively below, the drain received by the 1 st drain pan 63a is guided to the 2 nd drain pan 63b through the communication path. Thus, the drain water generated and dropped by the indoor heat exchanger 61 is received by the 1 st drain pan 63a and the 2 nd drain pan 63b, respectively, and then collected in the 2 nd drain pan 63b.
Fig. 4 shows a state in which the 2 nd drain pan 63b is separated from the unit main body 6. As shown in fig. 3 and 4, the 2 nd drain pan 63b includes a flow groove portion 631, a fixing portion 632, and an air passage portion 633.
The launder portion 631 is a portion that extends in a launder-like manner within a predetermined range in the width direction of the unit main body 6 in which the 2 nd fin portion 61b and the 3 rd fin portion 61c of the indoor heat exchanger 61 are disposed, and receives drain water dropped from these fin portions 61b and 61c. The drain water dropped from the 1 st fin portion 61a received in the 1 st drain pan 63a is also collected in the runner portion 631 via the communication path. The launder portion 631 has ribs 634 at predetermined intervals in the width direction, and rigidity is improved.
The launder portion 631 is provided with a connection 635 for connecting the drain hose 64. The connection portion 635 is opened at each of both sides in the width direction of the flow groove portion 631, and protrudes rearward in a cylindrical shape, for example, and the front end portion of the drain hose 64 is inserted into the outer peripheral portion of the connection portion 635 and fitted. Thereby, the drain water collected in the launder portion 631 is discharged from the connection 635 through the drain hose 64.
Further, the spout portion 631 is provided with a claw portion 636 for positioning the 2 nd drain pan 63b on the unit main body 6. The unit main body 6 is provided with a claw receiving portion 66 engaging the claw portion 636 in correspondence with the position of the claw portion 636. The 2 nd drain pan 63b positioned by the claw 636 is fixed to the back plate 65 of the unit main body 6 by a predetermined attachment (for example, a screw) not shown.
Fig. 5 shows a schematic configuration of the fixing portion 632 for positioning and fixing the drain hose 64 to the 2 nd drain pan 63b. The 2 nd drain pan 63b is configured to be substantially symmetrical in the left-right direction, and the fixing portion 632 of the right side portion of the 2 nd drain pan 63b shown in fig. 4 and 5 will be described below, but the same applies to the fixing portion 632 of the left side portion.
The fixing portions 632 are provided on both sides of the flow groove portion 631 in the width direction, in other words, on both ends in the longitudinal direction. The fixing portions 632 on both sides in the width direction include screw receiving portions 637 for positioning and fixing the drain hose 64 to the 2 nd drain pan 63b. The screw receiving portion 637 is connected to the end portion of the flow groove portion 631 in the width direction by a connecting portion 638 with a gap S therebetween, and is provided in the vicinity of the connecting portion 635. The screw receiving portion 637 has screw holes 637a for fastening screws Y for coupling with the drain hose 64. The screw hole 637a is provided so as to face forward and can be accessed from the front to be operated, specifically, to tighten or loosen the screw Y from the front.
That is, the screw hole 637a is closed from the direction toward the wall surface W, and the screw Y can be fastened or loosened. The direction toward the wall surface W is, for example, a direction in which the wall surface W travels obliquely upward toward the rear between an angle perpendicular to the wall surface W as the mounting surface and an angle parallel to the wall surface W. The screw hole 637a constitutes a coupling mechanism for coupling the screw receiving portion 637 and the drain hose 64.
In fig. 4, a drain hose 64 is connected to the right side portion of the 2 nd drain pan 63b. The 2 nd drain pan 63b is configured to be substantially symmetrical in the left-right direction, and as shown in fig. 6, a fixing portion 632 (a screw receiving portion 637, a connecting portion 638) and a connecting portion 635 are also provided in the left-side portion. Fig. 6 shows a state in which the 2 nd drain pan 63b is attached to the unit main body 6. As in the example shown in fig. 4 and 6, when the drain hose 64 is connected to the right side portion, the connection portion 635 of the left side portion on the unused side is closed by a sealing plug (not shown). Thereby, the connection portion 635 to which the drain hose 64 is not connected is blocked watertight, preventing drain from leaking from the connection portion 635.
The drain hose 64 is connected to the drain pan 63, and drains the drain received by the drain pan 63. More specifically, the drain hose 64 is connected to the 2 nd drain pan 63b, and drains the drain collected in the 2 nd drain pan 63b to the outside of the indoor unit 3, typically to the outside.
As shown in fig. 7A and 7B, the drain hose 64 includes a hose portion 64a made of resin and a cover portion 64B for covering the hose portion 64 a. The hose portion 64a is formed into a bellows shape from a resin such as polypropylene. One end (hereinafter, referred to as a distal end) of the hose portion 64a is connected to the 2 nd drain pan 63b, and the other end (hereinafter, referred to as a distal end) is exposed to a region of the indoor unit 3 where water can be drained. The hose portion 64a extends, for example, from the bottom of the unit main body 6 to the outside in accordance with the manner in which the indoor unit 3 is attached to the wall surface W. The hose portion 64a has a small diameter portion 64c and a large diameter portion 64d, which are continuous with the bellows portion and have different outer diameters, at the distal end portion. The small diameter portion 64c is continuous with the bellows portion of the hose portion 64a, and the outer periphery thereof is covered with the covering portion 64b. The outer diameter of the large diameter portion 64d is larger than the outer diameter of the small diameter portion 64c (Dd > Dc), and the large diameter portion 64d is located near the distal end of the hose portion 64a and is exposed from the cover portion 64b. The cover portion 64b is, for example, a substantially cylindrical heat insulating member having a cutout in a part of the peripheral surface, and covers the outer periphery of the hose portion 64a to prevent condensation on the outer surface of the drain hose 64 due to low-temperature drain flowing therein.
The drain hose 64 has a fixed portion 64e positioned and fixed to the fixed portion 632 of the drain pan 63, specifically, the 2 nd drain pan 63b. The fixed portion 64e includes a through hole 64f through which the screw Y fastened to the screw hole 637a is inserted, and serves as a coupling mechanism with the screw receiving portion 637.
The fixed portion 64e is a plate-shaped member (hereinafter referred to as a mounting component 64 e) formed by processing a metal plate, for example. The attachment member 64e is attached to the front end portion of the drain hose 64, specifically, the hose portion 64a, and protrudes in a convex shape (flange shape).
In the example shown in fig. 7A and 7B, the attachment member 64e includes a link portion 64g fitted to the distal end portion of the hose portion 64a, and a flange portion 64h having a through hole 64 f. The link portion 64g has an opening fitted into the front end portion of the hose portion 64 a. The opening of the link portion 64g is formed in a substantially circular shape with a diameter (Dg) smaller than the outer diameter (Dd) of the large-diameter portion 64d of the hose portion 64a and the outer diameter (Db) of the cover portion 64b and larger than the outer diameter (Dc) of the small-diameter portion 64 c.
The attachment member 64e is disposed offset from the distal end portion of the tube portion 64a by, for example, fitting the rod portion 64g into the distal end portion of the tube portion 64a before being covered by the covering portion 64b. Thereafter, the outer periphery of the hose portion 64a is covered by the covering portion 64b. In this state, the link portion 64g is sandwiched between the distal end of the cover portion 64b and the large diameter portion 64d, and the inner peripheral portion interferes with them, so that the falling-off from the hose portion 64a is suppressed. The flange portion 64h protrudes from a part of the outer periphery of the link portion 64g in the diameter-expanding direction. Fig. 7B shows an example of the configuration of the flange portion 64h forming a substantially triangular planar shape with a curved top, but the planar shape is not particularly limited. The through hole 64f penetrates the flange portion 64h in the plate thickness direction.
Since the diameter of the link portion 64g is set as described above, the mounting member 64e can be rotated with respect to the drain hose 64 about the center axis C of the hole (hose portion 64 a) of the drain hose 64. Thus, the through hole 64f of the collar 64h can be shifted between a state of communicating with the screw hole 637a of the screw receiving portion 637 and a state of not communicating with the screw hole 637a.
In a state where the through hole 64f communicates with the screw hole 637a, the collar 64h is in a state (1 st state) of interfering with the screw receiving portion 637 in the center axis C direction (see fig. 8). On the other hand, in a state (state 2) in which the through hole 64f is separated from the screw hole 637a and does not communicate with it, the flange 64h is located in the space S and does not interfere with the screw receiving portion 637 in the central axis C direction (see fig. 9 and 10). The coupling portion 638 is configured to couple the screw receiving portion 637 to the longitudinal end of the 2 nd drain pan 63b (the groove portion 631) with a gap S that allows the flange portion 64h to retract so as not to interfere with the screw receiving portion 637 in the central axis C direction in the 2 nd state.
Here, the attachment and detachment of the drain hose 64 of the present embodiment to and from the drain pan 63 (specifically, the 2 nd drain pan 63 b) will be described. Fig. 8 schematically shows a screw fastening method in the case of attaching and detaching the drain hose 64 to and from the 2 nd drain pan 63b. Fig. 9 is a view schematically showing a configuration in which the 2 nd drain pan 63b is connected to the drain hose 64. Fig. 10 is a view schematically showing a configuration in which the drain hose 64 is removed from the 2 nd drain pan 63b.
First, a case where the drain hose 64 is connected to the 2 nd drain pan 63b will be described. In this case, as shown in fig. 6, the frame 7 is detached from the unit main body 6, and the 2 nd drain pan 63b is attached to the unit main body 6. In this state, the front end portion of the drain hose 64 and the vicinity thereof are bent so as to open toward the front. Then, as indicated by an arrow a91 in fig. 9, the tip end portion of the drain hose 64 is inserted into and fitted into the connection portion 635 of the 2 nd drain pan 63b. Next, as indicated by arrow a92 in fig. 9, the mounting member 64e is rotated relative to the drain hose 64, and the through hole 64f of the flange portion 64h communicates with the screw hole 637a of the screw receiving portion 637 (the state shown in fig. 8). In this state, the screw Y is fastened to the screw hole 637a by the driver Z. Thus, the mounting member 64e is coupled to the screw receiving portion 637, and the drain hose 64 is connected to the 2 nd drain pan 63b.
When the drain hose 64 is removed from the 2 nd drain pan 63b, as shown in fig. 8, the screw Y fastened to the screw hole 637a is loosened by the screw driver Z and removed. Next, as shown by an arrow a101 in fig. 10, the mounting part 64e is rotated with respect to the drain hose 64, and the flange 64h is brought into a state of not interfering with the screw receiving portion 637 in the central axis C direction. Then, as indicated by an arrow a102 in fig. 10, the distal end portion of the drain hose 64 is pulled out from the connection portion 635 of the 2 nd drain pan 63b and removed.
As described above, according to the present embodiment, the screw hole 637a for attaching and detaching the drain hose 64 to and from the drain pan 63 is provided so as to face forward, and the screw Y can be fastened or loosened from the front. Accordingly, as shown in fig. 6, the screw Y can be loosened from the front in a state where the frame body 7 is detached from the unit main body 6 and the 2 nd drain pan 63b is attached to the unit main body 6. For example, conventionally, the screw hole of the screw receiving portion is provided to face rearward, and can be operated by approaching from the rear. Therefore, in the case of removing the drain hose from the drain pan, it is necessary to remove the unit main body from the mounting plate. Therefore, for example, when cleaning the drain pan, the unit main body must be removed from the mounting plate. However, since the unit main bodies are connected by a refrigerant pipe composed of a copper pipe penetrating the wall surface W of the room after installation, this is a very troublesome operation.
In contrast, in the present embodiment, only by removing the housing 7 from the unit main body 6, the screw receiving portion 637 in a state where the screw Y is fastened to the screw hole 637a can be exposed forward. Thus, the drain hose 64 can be detached from the 2 nd drain pan 63b by loosening the screw Y from the front without detaching the unit body 6 from the attachment plate 5. Therefore, the trouble of removing the drain hose 64 from the 2 nd drain pan 63b can be significantly reduced.
In addition, in the case of connecting the drain hose 64 to the 2 nd drain pan 63b, the drain hose 64 is inserted into the 2 nd drain pan 63b in a process opposite to that in the case of removal, and then the screw Y is fastened from the front, whereby the trouble of connecting the drain hose 64 to the 2 nd drain pan 63b can be also significantly reduced.
That is, according to the present embodiment, the 2 nd drain pan 63b can be easily removed from the unit main body 6, the work load at this time can be reduced, and the workability in cleaning the inside of the indoor unit 3 can be improved.
In the above embodiment, the fixed portion 632 (the screw receiving portion 637 and the connecting portion 638) and the connecting portion 635 of the drain pan 63 are used to screw-fix the fixed portion 64e of the drain hose 64, but the fixed portion 632 (the screw receiving portion 637 and the connecting portion 638) and the connecting portion 635 may be provided not in the drain pan 63 but in the back plate 65 of the unit main body 6, and the back plate 65 may be used to prevent the drain hose 64 from coming off.
While the present invention has been described with reference to several embodiments, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other modes, and various omissions, substitutions, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the scope equivalent thereto.
Description of symbols
1: an air conditioner; 2: an outdoor unit; 3: an indoor unit; 5: a mounting plate; 6: a unit main body; 7: a frame; 8: a front panel; 8a: a panel member; 61: an indoor heat exchanger; 611: a heat sink; 621: a fan; 63: a drain pan; 63a: a1 st drain pan; 63b: a 2 nd drain pan; 631: a launder section; 632: a fixing part; 635: a connection part; 636: a claw portion; 637: a screw receiving portion; 637a: a threaded hole; 638: a connecting part; 64: a drain hose; 64a: a hose portion; 64b: a cover part; 64c: a small diameter portion; 64d: a large diameter portion; 64e: a fixed part (mounting component); 64f: a through hole; 64g: a link portion; 64h: a convex edge part; 65: a back plate; w: mounting surface (wall surface).
Claims (6)
1. An indoor unit of an air conditioner is provided with:
a unit main body having a suction port and a blow-out port, for accommodating the heat exchanger and the blower therein, and mounted on a wall surface of the room;
a drain pan disposed at a lower portion of the heat exchanger and receiving drain water generated and dropped in the heat exchanger in association with a refrigeration cycle operation; and
a drain hose connected to the drain pan for draining the drain water received by the drain pan to the outside of the unit main body,
the unit main body or the drain pan is provided with a fixing part for positioning and fixing the drain hose,
the drain hose has a fixed part positioned and fixed on the fixed part,
the fixed portion and the fixed portion have coupling means which are brought close to each other from a direction toward the wall surface to couple the fixed portion and the fixed portion.
2. The indoor unit of an air conditioner according to claim 1, wherein,
as the above-mentioned coupling mechanism,
the fixing part is provided with a screw receiving part with a screw hole for fastening a prescribed screw,
the fixed portion includes a through hole through which the screw is inserted and which communicates with the screw hole.
3. The indoor unit of an air conditioner according to claim 2, wherein,
the fixed portion is configured in a plate shape in which the through hole penetrates in the plate thickness direction, and is disposed at the distal end portion of the drain hose so as to be rotatable with respect to the drain hose about a center axis of the hole of the drain hose.
4. The indoor unit of an air conditioner according to claim 3, wherein,
the fixed part has a connecting rod part jogged with the front end part of the drainage hose and a convex edge part protruding from the connecting rod part in convex edge shape and having the through hole,
the flange portion is configured to be shifted between a1 st state in which the through hole communicates with the screw hole by rotating with respect to the drain hose, and a 2 nd state in which the through hole is separated from the screw hole and does not communicate with the screw receiving portion, and in the 1 st state, the flange portion is configured to interfere with the screw receiving portion in the central axis direction, and in the 2 nd state, the flange portion is configured not to interfere with the screw receiving portion in the central axis direction.
5. The indoor unit of an air conditioner according to claim 4, wherein,
the fixed portion has a connecting portion that connects the screw receiving portion and an end portion of the drain pan in the longitudinal direction, with a gap that allows the flange portion to retract so as not to interfere with the screw receiving portion in the central axis direction in the 2 nd state.
6. The indoor unit of an air conditioner according to claim 4 or 5, wherein,
the drain hose has a small diameter portion and a large diameter portion at the front end, the outer periphery of the small diameter portion is covered with a heat insulating material, the outer diameter of the large diameter portion is larger than the outer diameter of the small diameter portion, the large diameter portion is arranged at the front end of the small diameter portion,
the diameter of the connecting rod portion is smaller than the outer diameter of the large-diameter portion and the outer diameter of the heat insulating material, and is larger than the outer diameter of the small-diameter portion.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2020/040270 WO2022091219A1 (en) | 2020-10-27 | 2020-10-27 | Indoor unit for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116457618A true CN116457618A (en) | 2023-07-18 |
Family
ID=81382208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080106737.5A Pending CN116457618A (en) | 2020-10-27 | 2020-10-27 | Indoor unit of air conditioner |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4239257A4 (en) |
| JP (1) | JP7356602B2 (en) |
| CN (1) | CN116457618A (en) |
| WO (1) | WO2022091219A1 (en) |
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|---|---|---|---|---|
| JPH04113819U (en) * | 1991-03-22 | 1992-10-06 | 株式会社富士通ゼネラル | air conditioner |
| JP2004093049A (en) * | 2002-09-02 | 2004-03-25 | Sharp Corp | Air conditioner |
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| JP2011149616A (en) * | 2010-01-21 | 2011-08-04 | Daikin Industries Ltd | Air-conditioning indoor unit |
| CN204115128U (en) * | 2014-01-15 | 2015-01-21 | 三菱电机株式会社 | Air conditioner |
| CN106907778A (en) * | 2017-03-31 | 2017-06-30 | 广东美的制冷设备有限公司 | Indoor apparatus of air conditioner and air-conditioner |
| JP2019211131A (en) * | 2018-06-01 | 2019-12-12 | 株式会社コロナ | Air conditioner |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004211937A (en) * | 2002-12-27 | 2004-07-29 | Totaku Industries Inc | Drain hose |
| JP4274919B2 (en) | 2003-01-23 | 2009-06-10 | 三洋電機株式会社 | Air conditioner |
| JP4557150B2 (en) * | 2004-11-16 | 2010-10-06 | 株式会社富士通ゼネラル | Air conditioner |
| JP6833590B2 (en) * | 2017-03-31 | 2021-02-24 | 三菱重工サーマルシステムズ株式会社 | Indoor unit of drain hose fixture and air conditioner |
-
2020
- 2020-10-27 WO PCT/JP2020/040270 patent/WO2022091219A1/en active Application Filing
- 2020-10-27 CN CN202080106737.5A patent/CN116457618A/en active Pending
- 2020-10-27 EP EP20959737.6A patent/EP4239257A4/en active Pending
- 2020-10-27 JP JP2022558644A patent/JP7356602B2/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04113819U (en) * | 1991-03-22 | 1992-10-06 | 株式会社富士通ゼネラル | air conditioner |
| JP2004093049A (en) * | 2002-09-02 | 2004-03-25 | Sharp Corp | Air conditioner |
| JP2005147433A (en) * | 2003-11-12 | 2005-06-09 | Sharp Corp | Air conditioner and drain hose connecting device for air conditioner |
| CN1811288A (en) * | 2005-01-26 | 2006-08-02 | 三洋电机株式会社 | Air conditioner |
| CN1896635A (en) * | 2005-07-15 | 2007-01-17 | 乐金电子(天津)电器有限公司 | Discharging grid of separated air conditioner |
| JP2011149616A (en) * | 2010-01-21 | 2011-08-04 | Daikin Industries Ltd | Air-conditioning indoor unit |
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| CN106907778A (en) * | 2017-03-31 | 2017-06-30 | 广东美的制冷设备有限公司 | Indoor apparatus of air conditioner and air-conditioner |
| JP2019211131A (en) * | 2018-06-01 | 2019-12-12 | 株式会社コロナ | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4239257A4 (en) | 2024-07-17 |
| JPWO2022091219A1 (en) | 2022-05-05 |
| EP4239257A1 (en) | 2023-09-06 |
| JP7356602B2 (en) | 2023-10-04 |
| WO2022091219A1 (en) | 2022-05-05 |
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