Indoor unit and air conditioning device

Abstract

The invention provides an indoor unit and an air conditioning device, which can effectively irradiate ultraviolet rays to conditioned air. The indoor unit is an indoor unit of an air conditioning device. The indoor unit includes a heat exchanger, an ultraviolet module, and a partition member. The heat exchanger is a heat exchanger through which an air flow passes. The ultraviolet module has a light emitting diode that irradiates ultraviolet light to a ventilation path through which the air flow that has passed through the heat exchanger passes. The partition member is disposed at an end of the heat exchanger and partitions the ventilation path. The ultraviolet module is fixed to the partition member.

Description

Technical Field

[0001] The present invention relates to an indoor unit and an air conditioning device. Background Art

[0002] Patent document 1 (Japanese Patent Publication No. 2022-160292) discloses an indoor unit for an air conditioner, which has an ultraviolet irradiation device at the intake port or the blow-out port inside the shell. The ultraviolet irradiation device has a light-emitting diode for irradiating ultraviolet rays and a light distribution control unit for converting the light distribution of the ultraviolet rays into parallel light.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2022-160292

[0006] In the arrangement of the light emitting diodes and the ultraviolet module including the light emitting diodes disclosed in Patent Document 1, ultraviolet rays may not be efficiently irradiated onto the conditioned air. Therefore, there is room for improvement in the arrangement of the ultraviolet module. Summary of the Invention

[0007] An object of the present disclosure is to provide an indoor unit and an air-conditioning apparatus capable of efficiently irradiating conditioned air with ultraviolet rays.

[0008] The indoor unit of the first aspect is an indoor unit of an air-conditioning apparatus. The indoor unit includes a heat exchanger, an ultraviolet module, and a partition member.

[0009] The heat exchanger is a heat exchanger through which air flows. The UV module includes a light-emitting diode that radiates ultraviolet light to a ventilation path through which air passes after passing through the heat exchanger. A partition member is disposed at an end of the heat exchanger to partition the ventilation path. The UV module is fixed to the partition member.

[0010] According to this indoor unit, ultraviolet rays can be irradiated to an airflow having a relatively large volume that passes through the space partitioned by the partition member and after passing through the heat exchanger. Therefore, ultraviolet rays can be efficiently irradiated to the conditioned air.

[0011] The indoor unit according to a second aspect is the indoor unit according to the first aspect, wherein the partition member is made of resin.

[0012] According to this indoor unit, since the ultraviolet module is fixed to the partition member made of resin having low thermal conductivity, it is possible to suppress heating of the ultraviolet module by heat from the heat exchanger during heating operation.

[0013] The indoor unit according to a third aspect is the indoor unit according to the first or second aspect, further comprising a fan for generating airflow. The fan is positioned downstream of the heat exchanger in the airflow direction. The ultraviolet module is fixed to the partition member such that the optical axis passes between the heat exchanger and the fan.

[0014] According to this indoor unit, since the relatively low-speed airflow before it flows into the fan and increases in speed can be irradiated with ultraviolet rays, the conditioned air can be irradiated with ultraviolet rays more efficiently.

[0015] The indoor unit according to a fourth aspect is the indoor unit according to the third aspect, wherein the fan is a cross-flow fan, the heat exchanger includes a front heat exchange portion disposed in front of the fan, and the ultraviolet module is disposed vertically above a lower end of the front heat exchange portion.

[0016] According to this indoor unit, it is possible to suppress condensation water generated on the surface of the heat exchanger from falling onto the ultraviolet module and contaminating the ultraviolet module.

[0017] The indoor unit according to a fifth aspect is the indoor unit according to any one of the first to fourth aspects, wherein the ultraviolet module is fixed to the partition member so as to be detachable in a direction away from the ventilation path.

[0018] According to this indoor unit, when the ultraviolet module is removed from the partition member, there is no need to remove the heat exchanger and the partition member, and thus it is possible to suppress complication in the maintenance work of the ultraviolet module.

[0019] The indoor unit according to a sixth aspect is the indoor unit according to any one of the first to fifth aspects, wherein the ultraviolet module further includes a control substrate on which electronic components for controlling the light emitting diodes are mounted, and the control substrate is disposed near the light emitting diodes.

[0020] According to this indoor unit, the length of the wiring connecting the light emitting diode and the control substrate can be reduced, and thus the manufacturing cost can be reduced.

[0021] The indoor unit according to a seventh aspect is the indoor unit according to the sixth aspect, further comprising a motor and a power supply line. The motor rotates a damper that controls airflow. The power supply line supplies power to the control board. The power supply line is housed in a space provided for wiring connected to the motor.

[0022] According to this indoor unit, the power supply wiring and the wiring connected to the motor can be accommodated in the same space, and thus an increase in size can be suppressed.

[0023] An indoor unit according to an eighth aspect is the indoor unit according to any one of the first to seventh aspects, further comprising a reflective member that reflects ultraviolet rays emitted from the ultraviolet module, the reflective member being disposed on the opposite side of the ultraviolet module across the ventilation path.

[0024] According to this indoor unit, since the reflected light can also be irradiated to the conditioned air, the conditioned air can be irradiated with ultraviolet rays more efficiently.

[0025] The indoor unit according to a ninth aspect is the indoor unit according to the eighth aspect, further comprising a fan for generating airflow, wherein the reflecting member is fixed to a supporting member that supports the fan.

[0026] According to this indoor unit, since the reflecting member and the fan are supported by the same component, the manufacturing cost can be suppressed.

[0027] The indoor unit according to a tenth aspect is the indoor unit according to any one of the first to ninth aspects, wherein the UV module further comprises a heat sink. The heat sink includes a base on which the light emitting diode is mounted and a protrusion protruding from the base. The protrusion protrudes from the base in a direction away from the ventilation path.

[0028] According to this indoor unit, even when high-temperature air flows in the ventilation path during heating operation of the air conditioner, the protrusion can be prevented from coming into contact with the high-temperature conditioned air, thereby preventing the protrusion from coming into contact with the high-temperature conditioned air and thereby preventing heat dissipation from being impeded.

[0029] An air-conditioning apparatus according to an eleventh aspect includes the indoor unit according to any one of the first to tenth aspects, and an outdoor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of an air conditioning device 10 including a utilization unit 30 .

[0031] Figure 2 It is a front view of the utilization unit 30.

[0032] Figure 3 It is along Figure 2 sectional view of the utilization unit 30 taken along line AA.

[0033] Figure 4 This is a diagram showing the interior of the utilization unit 30 as viewed from the front.

[0034] Figure 5 It is a schematic diagram showing the connection and arrangement of the control device 39, the ultraviolet module 37, and each actuator.

[0035] Figure 6 Schematic diagram of the ultraviolet module 37 having a heat sink 37d.

[0036] Label Description

[0037] 10: Air conditioning unit

[0038] 20: Heat source unit (outdoor unit)

[0039] 30: Utilization unit (indoor unit)

[0040] 31: Heat exchanger (using heat exchanger)

[0041] 31f: Front side heat exchange part

[0042] 32: Fan (using fan)

[0043] 32a: Motor

[0044] 35: Baffle

[0045] 35b: Motor

[0046] 36: Separator

[0047] 37: UV module

[0048] 37a: Light-emitting diode

[0049] 37b: Control board

[0050] 37c: Power wiring

[0051] 37d: Radiator

[0052] 37da: base

[0053] 37db: protrusion

[0054] 38: Reflective components

[0055] f: airflow

[0056] o: optical axis

[0057] P: Ventilation path DETAILED DESCRIPTION

[0058] <First embodiment>

[0059] (1) Overall structure

[0060] The utilization unit 30 according to one embodiment of the present disclosure is used in an air conditioning apparatus. Figure 1 Schematic diagram of an air conditioning device 10 including a utilization unit 30 .

[0061] The air conditioning apparatus 10 includes a heat source unit 20, a usage unit 30, and refrigerant pipes 12 and 13. The usage unit 30 and the heat source unit 20 are connected by the refrigerant pipes 12 and 13 to form a refrigerant circuit 11.

[0062] The heat source unit 20 includes a compressor 21, a four-way valve 22, a heat source heat exchanger 23, an expansion valve 24, a accumulator 25, and a heat source fan 28. The utilization unit 30 includes a utilization heat exchanger 31 and a utilization fan 32. In the refrigerant circuit 11, the compressor 21, the four-way valve 22, the heat source heat exchanger 23, the expansion valve 24, the accumulator 25, and the utilization heat exchanger 31 are connected by piping, and the refrigerant circuit 11 is filled with refrigerant. The heat source unit 20 is an example of an outdoor unit.

[0063] The air conditioner 10 performs a vapor compression refrigeration cycle in the refrigerant circuit 11 to realize cooling and heating operations as air conditioning operations. The utilization unit 30 is installed in the air-conditioned space (not shown). The heat source unit 20 is installed outside the air-conditioned space.

[0064] In the cooling operation mode, the four-way valve 22 is switched to the connection state shown by the solid line, connecting the compressor 21 to the heat source heat exchanger 23 and connecting the utilization heat exchanger 31 to the accumulator 25. In the heating operation mode, the four-way valve 22 is switched to the connection state shown by the dotted line, connecting the compressor 21 to the utilization heat exchanger 31 and connecting the heat source heat exchanger 23 to the accumulator 25.

[0065] (1-1) Refrigerant Circulation During Refrigeration Operation

[0066] During cooling operation, the gas refrigerant compressed by the compressor 21 is transported to the heat source heat exchanger 23 through the four-way valve 22. The refrigerant condenses by exchanging heat in the heat source heat exchanger 23 with the air (heat source) outside the air-conditioned space blown by the heat source fan 28. The refrigerant that has undergone heat exchange in the heat source heat exchanger 23 is expanded and decompressed in the expansion valve 24 and then transported to the utilization heat exchanger 31 of the utilization unit 30 through the refrigerant piping 13. The low-temperature, low-pressure refrigerant transported from the expansion valve 24 to the utilization heat exchanger 31 of the utilization unit 30 evaporates by exchanging heat in the utilization heat exchanger 31 with the air inside the air-conditioned space blown by the fan 32. At this time, the air that has undergone heat exchange with the refrigerant is cooled. The gas refrigerant or the refrigerant in a gas-liquid two-phase state that has undergone heat exchange in the utilization heat exchanger 31 is drawn into the compressor 21 through the refrigerant piping 12, the four-way valve 22, and the accumulator 25. The conditioned air cooled by the utilization heat exchanger 31 is blown from the utilization unit 30 to the air-conditioned space, thereby cooling the room.

[0067] (1-2) Refrigerant Circulation During Heating Operation

[0068] During heating operation, the gas refrigerant compressed by compressor 21 passes through four-way valve 22 and refrigerant piping 12 and is transported to utilization heat exchanger 31. In utilization heat exchanger 31, the refrigerant condenses through heat exchange with the air in the air-conditioned space blown by fan 32. The air undergoing heat exchange with the refrigerant is heated. The refrigerant that has undergone heat exchange in utilization heat exchanger 31 is transported through refrigerant piping 13 to expansion valve 24. The low-temperature, low-pressure refrigerant, which has undergone expansion and decompression in expansion valve 24, is then transported to heat source heat exchanger 23, where it evaporates through heat exchange with the air outside the air-conditioned space blown by heat source fan 28. The gas refrigerant or gas-liquid two-phase refrigerant that has undergone heat exchange in heat source heat exchanger 23 passes through four-way valve 22 and accumulator 25 and is drawn into compressor 21. The conditioned air heated by utilization heat exchanger 31 is blown from utilization unit 30 into the air-conditioned space, thereby heating the room.

[0069] (2) Detailed structure

[0070] (2-1) Utilization Unit 30

[0071] The utilization unit 30 includes a utilization heat exchanger 31, a utilization fan 32, a housing 33, an air filter 34, a baffle 35, a partition 36, an ultraviolet module 37, a reflective member 38, and a control device 39. The utilization unit 30 is a wall-mounted unit that is mounted on a wall surface WL of the air-conditioned space and has a substantially rectangular parallelepiped shape that is long in the horizontal direction (left-right direction). The utilization unit 30 is an example of an indoor unit.

[0072] Figure 2 It is a front view of the utilization unit 30. Figure 3 It is along Figure 2 sectional view of the utilization unit 30 taken along line AA. Figure 4 This is a diagram showing the interior of the utilization unit 30 as viewed from the front. Figure 5 It is a schematic diagram showing the connection and arrangement of the control device 39, the ultraviolet module 37, and each actuator.

[0073] The directions of up, down, left, right, front, and back mentioned in the following description correspond to the directions indicated by the arrows in the figures. Figure 4 1 , for convenience, the housing 33 and the air filter 34 (both described later) are shown through, and a portion of the heat transfer tube 31a and the heat transfer fin 31b (both described later) is omitted.

[0074] (2-1-1) Housing 33

[0075] The housing 33 is a generally rectangular parallelepiped shape that is elongated horizontally (left-right). It houses the heat exchanger 31, fan 32, air filter 34, UV module 37, and reflector 38. The housing 33 has an air inlet 33a, an outlet 33b, and a wiring storage space 33c. The housing 33 is installed in the air-conditioned space with its rear surface 33R in contact with the wall WL.

[0076] The suction port 33a is an opening formed in the upper portion of the housing 33 and serves as an inlet for air to flow into the interior of the housing 33. The blowout port 33b is an opening formed in the lower portion of the housing 33 and serves as an outlet for the airflow f (conditioned air). The utilization unit 30 draws air from the air-conditioned space into the housing 33 through the suction port 33a and blows the conditioned air out through the blowout port 33b.

[0077] The wiring storage space 33c is a space extending in the left-right direction and formed in front of the air outlet 33b.

[0078] In the casing 33 , in the flow path of air flowing from the suction port 33 a to the blowout port 33 b , an air filter 34 , a heat exchanger 31 , a fan 32 , and a baffle 35 are arranged in this order from a position close to the suction port 33 a .

[0079] (2-1-2) Air filter 34

[0080] The air filter 34 removes dust from the air of the target space supplied to the heat exchanger 31. The air filter 34 is arranged in the casing 33 so as to allow substantially all of the air supplied to the heat exchanger 31 to pass therethrough.

[0081] (2-1-3) Using the heat exchanger 31

[0082] The heat exchanger 31 exchanges heat between the refrigerant and the air in the air-conditioned space. Airflow f generated by a fan 32 passes through the heat exchanger 31. The heat exchanger 31 is a fin-and-tube heat exchanger comprising a plurality of heat transfer tubes 31a, a plurality of heat transfer fins 31b, a plurality of U-shaped tubes 31c, a tube sheet 31d, and a sealing member 31e. The heat transfer tubes 31a, heat transfer fins 31b, U-shaped tubes 31c, and tube sheet 31d are formed from aluminum or an aluminum alloy. The heat exchanger 31 is an example of a heat exchanger.

[0083] The plurality of heat transfer tubes 31 a are arranged inside the casing 33 with their longitudinal directions extending along the left-right direction and at predetermined intervals therebetween.

[0084] The plurality of heat transfer fins 31b are arranged inside the housing 33 at right angles to the horizontal direction and at predetermined intervals therebetween. The heat transfer fins 31b have a plurality of holes through which the heat transfer tubes 31a pass. The plurality of heat transfer fins 31b are arranged in the horizontal direction between the two tube sheets 31d.

[0085] The heat transfer fin 31b has a first portion 31ba, a second portion 31bb, a third portion 31bc, a first bent portion 31bd, and a second bent portion 31be. The heat transfer fin 31b is formed into a C-shape open downward when viewed from the left and right directions (see FIG. Figure 3 ).

[0086] The first bent portion 31bd is located at the uppermost portion of the heat exchanger 31. The second bent portion 31be is located at the frontmost portion of the heat exchanger 31.

[0087] The first bent portion 31bd includes a connecting portion that connects the first portion 31ba and the second portion 31bb. The second bent portion 31be includes a connecting portion that connects the second portion 31bb and the third portion 31bc.

[0088] The first bent portion 31bd and the second bent portion 31be are portions where the heat transfer fin 31b is bent when viewed from the left-right direction.

[0089] The first portion 31ba connects the first curved portion 31bd to the rearmost end of the heat transfer fin 31b. The first portion 31ba is formed so as to extend downward as it approaches the rear from the first curved portion 31bd. The second portion 31bb connects the first curved portion 31bd to the second curved portion 31be. The second portion 31bb is formed so as to extend downward as it approaches the front from the first curved portion 31bd. The third portion 31bc connects the second curved portion 31be to the lowest end of the heat transfer fin 31b. The third portion 31bc extends downward from the second curved portion 31be.

[0090] Hereinafter, for convenience, the portion of the heat exchanger 31 located forward of the first bent portion 31bd may be referred to as a front-side heat exchange portion 31f.

[0091] The U-shaped tube 31c connects the ends of two predetermined heat transfer tubes 31a. Some heat transfer tubes 31a are connected at their ends to a pipe connected to one of the refrigerant pipes 12 and 13. This allows refrigerant flowing from one of the refrigerant pipes 12 and 13 into the heat transfer tube 31a to flow through the multiple heat transfer tubes 31a while being redirected by the U-shaped tube 31c.

[0092] The tube sheet 31d supports the plurality of heat transfer tubes 31a at their longitudinal ends. The tube sheet 31d is arranged inside the housing 33 perpendicular to the left-right direction. The tube sheet 31d has a shape substantially identical to that of the heat transfer fins 31b and has a plurality of holes formed therein for the heat transfer tubes 31a to pass through.

[0093] The sealing member 31e is a plate-shaped member that prevents air from passing through the first curved portion 31bd. The sealing member 31e covers the surface of the first curved portion 31bd that faces the air filter 34. The heat transfer fin 31b may be formed so that the width thereof as viewed from the left and right directions is thinner than that of other portions at the first curved portion 31bd (see FIG. 1 ). Figure 3 In this case, the heat exchange efficiency of the heat exchanger 31 is likely to be lower around the first curved portion 31bd than in other parts. The sealing member 31e prevents the airflow f from passing through the first curved portion 31bd, where the heat exchange efficiency is lower than in other parts, thereby preventing a decrease in the heat exchange efficiency of the heat exchanger 31.

[0094] (2-1-4) Using fan 32

[0095] The fan 32 generates an air flow f which flows into the casing 33 from the suction port 33a, passes through the air filter 34 and the heat exchanger 31, and is blown out from the blowout port 33b. The fan 32 is a cross-flow fan.

[0096] The utilization fan 32 is arranged with its rotation axis extending in the left-right direction. It is positioned downstream of the utilization heat exchanger 31 in the airflow f, surrounded by the utilization heat exchanger 31. The utilization fan 32 includes a motor 32a, which is an actuator that rotationally drives the main body of the utilization fan 32. The motor 32a is connected to a control device 39. The rotational speed of the motor 32a is controlled by the control device 39.

[0097] (2-1-5) Baffle 35

[0098] The damper 35 controls the airflow blown out from the air outlet 33b (specifically, controls the direction and / or amount of the airflow). The damper 35 includes a damper body 35a and a motor 35b.

[0099] The baffle body 35a is positioned at the air outlet 33b. The motor 35b is an actuator that rotationally drives the baffle body 35a. The motor 35b is positioned on either side of the air outlet 33b. The motor 35b is connected to the control device 39 via a wiring harness 35c. The wiring harness 35c is housed in the wiring storage space 33c. The wiring harness 35c is an example of wiring connected to the motor 35b.

[0100] (2-1-6) Partitioning member 36

[0101] The partition member 36 is disposed at both ends of the heat exchanger 31 and is a plate-shaped member that partitions off the ventilation path P. The ventilation path P is a path that allows the airflow f that has passed through the heat exchanger 31 to pass directly to the blow-out port 33b. The partition member 36 is disposed at both ends of the heat exchanger 31 so that its main surface is perpendicular to the left-right direction. The partition member 36 prevents the airflow f (conditioned air) that has passed through the heat exchanger 31 from leaking to the left and right directions before reaching the blow-out port 33b. The partition member 36 is made of resin. The partition member 36 may be composed of a single member or a plurality of members.

[0102] The partition member 36 includes a first partition member 36a, which is disposed at the left end of the heat exchanger 31, and a second partition member 36b, which is disposed at the right end of the heat exchanger 31. The first partition member 36a supports the ultraviolet module 37 and the rotating shaft (not shown) of the fan 32. The second partition member 36b supports the motor 32a of the fan 32 and the reflector 38.

[0103] The first partition member 36 a is an example of a partition member and is also an example of a supporting member that supports the fan 32 .

[0104] The second partition member 36b is an example of a partition member and is also an example of a supporting member that supports the fan 32 via the motor 32a.

[0105] (2-1-7) Ultraviolet module 37

[0106] The ultraviolet module 37 irradiates ultraviolet rays to the ventilation path P through which the air flow f passing through the heat exchanger 31 passes. The ultraviolet module 37 includes a light emitting diode 37a, a control substrate 37b, and a power supply wiring 37c.

[0107] The light emitting diode 37a irradiates ultraviolet light onto the ventilation path P. The control board 37b carries electronic components for controlling the light emitting diode 37a and is electrically connected to the light emitting diode 37a. The power supply wiring 37c is a wiring for supplying power to the light emitting diode 37a and the control board 37b and is connected to the control device 39.

[0108] The ultraviolet module 37 is fixed to the partition member 36. More specifically, the ultraviolet module 37 is fixed to the first partition member 36a so that the optical axis o of the light-emitting diode 37a passes between the heat exchanger 31 and the fan 32. The ultraviolet module 37 is arranged vertically above the lower end of the front heat exchange portion 31f.

[0109] The control board 37b is arranged near the light emitting diode 37a. More specifically, the control board 37b is fixed to the first partition member 36a together with the light emitting diode 37a.

[0110] The power supply wire 37c is housed in the wire housing space 33c together with the wire harness 35c connected to the motor 35b.

[0111] (2-1-8) Reflection member 38

[0112] The reflecting member 38 reflects the ultraviolet rays emitted from the ultraviolet module 37 .

[0113] The reflective member 38 has a reflective surface 38a that can reflect ultraviolet rays emitted by the ultraviolet module 37. The reflective member 38 is disposed on the second partition member 36b opposite to the ultraviolet module 37 across the ventilation path P. More specifically, the reflective member 38 is fixed to the second partition member 36b such that the optical axis o of the light-emitting diode 37a strikes the reflective surface 38a.

[0114] (2-1-9) Control device 39

[0115] The control device 39 controls the UV module 37 and each actuator (the motor 32a of the fan 32 and the motor 35b of the baffle 35). The control device 39 is electrically connected to the control board 37b of the UV module 37, the motor 32a, and the motor 35b via wiring. The control device 39 is housed in the electrical component box 40 and is located on the right side of the motor 32a (see FIG. Figure 4 ).

[0116] The control device 39 is implemented as a computer. It includes a control arithmetic unit and a storage device. The control arithmetic unit can use a processor such as a CPU or GPU. The control arithmetic unit reads a program stored in the storage device and performs predetermined arithmetic processing according to the program. Furthermore, the control arithmetic unit can write arithmetic results to the storage device or read information stored in the storage device according to the program.

[0117] (3) Characteristics

[0118] (3-1)

[0119] The usage unit 30 is an indoor unit of the air-conditioning apparatus 10. The usage unit 30 includes a heat exchanger 31, an ultraviolet module 37, and a partition member 36.

[0120] The heat exchanger 31 is a heat exchanger through which the airflow f passes. The ultraviolet module 37 includes a light-emitting diode 37a that irradiates ultraviolet light onto the ventilation path P through which the airflow f passes after passing through the heat exchanger 31. A partition member 36 is disposed at an end of the heat exchanger 31 to partition the ventilation path P. The ultraviolet module 37 is fixed to the partition member 36.

[0121] According to this indoor unit, the relatively large airflow f passing through the space partitioned by the partition member 36 and after passing through the heat exchanger 31 can be irradiated with ultraviolet rays, so the conditioned air can be efficiently irradiated with ultraviolet rays.

[0122] (3-2)

[0123] The partition member 36 is made of resin.

[0124] According to the utilization unit 30 , since the ultraviolet module 37 is fixed to the partition member 36 made of resin having low thermal conductivity, it is possible to suppress the ultraviolet module 37 from being heated by the heat of the heat exchanger 31 during the heating operation.

[0125] (3-3)

[0126] The utilization unit 30 further includes a utilization fan 32 for generating an airflow f. The utilization fan 32 is disposed downstream of the utilization heat exchanger 31 in the airflow f. The ultraviolet module 37 is fixed to the partition member 36 so that the optical axis o passes between the utilization heat exchanger 31 and the utilization fan 32.

[0127] According to the use unit 30 , the relatively low-speed airflow f before the airflow is increased in speed by the fan 32 can be irradiated with ultraviolet rays, and thus the conditioned air can be more efficiently irradiated with ultraviolet rays.

[0128] (3-4)

[0129] The fan 32 is a cross-flow fan. The heat exchanger 31 includes a front heat exchange portion 31f disposed in front of the fan 32. The ultraviolet module 37 is disposed vertically above the lower end of the front heat exchange portion 31f.

[0130] According to the utilization unit 30 , it is possible to suppress the dew condensation water generated on the surface of the utilization heat exchanger 31 from falling toward the ultraviolet module 37 and contaminating the ultraviolet module 37 .

[0131] (3-5)

[0132] The ultraviolet module 37 further includes a control board 37b on which electronic components for controlling the light emitting diode 37a are mounted. The control board 37b is arranged near the light emitting diode 37a.

[0133] By using the unit 30 , the length of the wiring connecting the light emitting diode 37 a and the control substrate 37 b can be reduced, thereby reducing the manufacturing cost.

[0134] (3-6)

[0135] The utilization unit 30 further includes a motor 35b and a power supply wire 37c.

[0136] The motor 35b rotates the damper body 35a to control the airflow f. The power supply wire 37c supplies power to the control board 37b. The power supply wire 37c is housed in the wire housing space 33c through which wires connected to the motor 35b pass.

[0137] According to the use of the unit 30 , the power supply wiring 37 c and the wiring connected to the motor 35 b can be accommodated in the same space, and thus an increase in size can be suppressed.

[0138] (3-7)

[0139] The utilization unit 30 further includes a reflecting member 38 for reflecting the ultraviolet rays emitted from the ultraviolet module 37. The reflecting member 38 is disposed on the opposite side to the ultraviolet module 37 with the ventilation path P interposed therebetween.

[0140] According to the utilization unit 30, since the reflected light can also be irradiated to the conditioned air, the conditioned air can be irradiated with ultraviolet rays more efficiently.

[0141] (3-8)

[0142] The reflecting member 38 is fixed to the second partition member 36 b that supports the fan 32 .

[0143] According to the use of the unit 30 , since the reflecting member 38 and the fan are supported by the same component, the manufacturing cost can be suppressed.

[0144] (4) Modification

[0145] (4-1) Modification A

[0146] In consideration of maintenance, the ultraviolet module 37 is preferably fixed to the partition member 36 in a manner that allows easy removal. For example, the ultraviolet module 37 may be fixed to the partition member 36 in a manner that allows removal in a direction away from the ventilation path P. More specifically, the ultraviolet module 37 may be fixed to the partition member 36 in a manner that allows removal in a direction away from the ventilation path P (in a state where the partition member 36 is exposed). Figure 4 In the case of the left side, it is fixed to the partition member 36 by being pulled out.

[0147] Therefore, when removing the ultraviolet module 37 from the partition member 36, it is not necessary to remove the utilization heat exchanger 31 and the partition member 36 from the housing 33. Therefore, according to the utilization unit 30 of the modification A, it is possible to suppress the maintenance work of the ultraviolet module 37 from becoming complicated.

[0148] (4-2) Modification B

[0149] The ultraviolet module 37 may further include a heat sink 37d for dissipating heat generated by the light emitting diode 37a. The heat sink 37d includes a base 37da on which the light emitting diode 37a is mounted and a protrusion 37db protruding from the base 37da. The protrusion 37db is, for example, a fin or a pin. Figure 6 This is a schematic diagram of a UV module 37 having a heat sink 37d. A protrusion 37db is formed to protrude from a base 37da in a direction away from the ventilation path P. Heat sink 37d absorbs heat generated by LED 37a using base 37da. Heat sink 37d dissipates the heat absorbed by base 37da primarily through protrusion 37db. In this way, heat sink 37d cools LED 37a. Alternatively, LED 37a can be used in a form where a LED chip is mounted on a wiring board.

[0150] Thus, even when hot air flows through the ventilation path P during heating operation of the air conditioner 10, the protrusion 37 db is prevented from coming into contact with the hot conditioned air. Therefore, according to the utilization unit 30 of Modification B, it is possible to prevent the protrusion 37 db from coming into contact with the hot conditioned air and thereby hindering heat dissipation.

[0151] (4-3) Modification C

[0152] The ultraviolet module 37 may be fixed to the second partition member 36 b so that the optical axis o of the light emitting diode 37 a passes between the heat exchanger 31 and the fan 32 .

[0153] Summary

[0154] While the embodiments of the present disclosure have been described above, it should be understood that various changes in form and details can be made without departing from the spirit and scope of the present disclosure as described in the claims.

Claims

1. An indoor unit (30), which is an indoor unit (30) of an air conditioning device (10), wherein: The indoor unit (30) comprises: a heat exchanger (31) through which the air flow (f) passes; an ultraviolet module (37) having a light emitting diode (37a) for irradiating ultraviolet rays to a ventilation path (P) through which the airflow (f) passing through the heat exchanger (31) passes; and A partition member (36) is disposed at the end of the heat exchanger (31) to partition the ventilation path (P). The ultraviolet module (37) is fixed to the partition component (36).

2. The indoor unit (30) according to claim 1, wherein: The partition member (36) is made of resin.

3. The indoor unit (30) according to claim 1, wherein: The indoor unit (30) further includes a fan (32) for generating the airflow (f). The fan (32) is arranged at a position downstream of the air flow (f) relative to the heat exchanger (31). The ultraviolet module (37) is fixed to the partition member (36) in such a manner that the optical axis (o) passes between the heat exchanger (31) and the fan (32).

4. The indoor unit (30) according to claim 3, wherein: The fan (32) is a cross-flow fan, The heat exchanger (31) includes a front heat exchange portion (31f) disposed in front of the fan (32). The ultraviolet module (37) is arranged vertically above the lower end of the front heat exchange portion (31f).

5. The indoor unit (30) according to claim 1, wherein The ultraviolet module (37) is fixed to the partition member (36) in a manner that allows it to be removed in a direction away from the ventilation path (P).

6. The indoor unit (30) according to claim 1, wherein: The ultraviolet module (37) further includes a control substrate (37b) on which electronic components for controlling the light emitting diode (37a) are mounted. The control substrate (37b) is arranged near the light emitting diode (37a).

7. The indoor unit (30) according to claim 6, wherein: The indoor unit (30) further comprises: a motor (35b) that rotationally drives the baffle (35) for controlling the airflow (f); and a power supply wiring (37c) for supplying power to the control substrate (37b), The power supply wiring (37c) is accommodated in a space through which wiring connected to the motor (35b) passes.

8. The indoor unit (30) according to claim 1, wherein: The indoor unit (30) further includes a reflecting member (38) for reflecting ultraviolet rays irradiated from the ultraviolet module (37). The reflecting member (38) is arranged on the opposite side to the ultraviolet module (37) across the ventilation path (P).

9. The indoor unit (30) according to claim 8, wherein: The indoor unit (30) further includes a fan (32) for generating the airflow (f). The reflecting member (38) is fixed to a supporting member that supports the fan (32).

10. The indoor unit (30) according to claim 1, wherein The ultraviolet module (37) further comprises a heat sink (37d). The radiator (37d) comprises: A base (37da) for mounting the light emitting diode (37a); and a protrusion (37db) protruding from the base (37da), The protrusion (37db) protrudes from the base (37da) in a direction away from the ventilation path (P).

11. An air conditioning device (10), comprising: The indoor unit (30) according to any one of claims 1 to 10; and Outdoor unit (20).

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