Ultraviolet irradiation unit and air conditioning device

Abstract

The ultraviolet irradiation unit (50) can be installed in an air conditioning device (10), wherein the air conditioning device (10) includes an indoor unit (20) having an indoor fan (22) and an air conditioning control unit (15) for controlling the operation of the indoor unit (20). The ultraviolet irradiation unit (50) includes a light source (51) for irradiating ultraviolet rays to the indoor unit (20) and a light source control unit (52) capable of communicating with the air conditioning control unit (15) and controlling the operation of the light source (51). When the light source control unit (52) receives a first signal (S1) sent from the air conditioning control unit (15), the light source control unit (52) turns on the power of the light source (51).

Description

Technical Field

[0001] The present disclosure relates to an ultraviolet irradiation unit and an air conditioning device. Background Art

[0002] Conventionally, an air conditioner including an ultraviolet irradiation unit (irradiation unit) for irradiating ultraviolet rays is known (for example, see Patent Document 1). The air conditioner includes an air conditioner control unit for controlling various operations of the air conditioner, and the operation of the ultraviolet irradiation unit is controlled by the air conditioner control unit.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2021-055892 Summary of the invention

[0006] Technical problem to be solved by the invention

[0007] In the air conditioner, there is a case where the ultraviolet irradiation unit is an optional component. That is, the air conditioner is sometimes used in a structure that does not include the ultraviolet irradiation unit. However, in the air conditioner, regardless of whether the ultraviolet irradiation unit is included, a control program for controlling the ultraviolet irradiation unit needs to be stored in the air conditioner control unit in advance.

[0008] An object of the present disclosure is to provide an ultraviolet irradiation unit and an air conditioning apparatus including the same, wherein the ultraviolet irradiation unit does not require a control program for the unit to be stored in advance in an air conditioning control unit of the air conditioning apparatus.

[0009] Technical solutions adopted to solve technical problems

[0010] (1) The ultraviolet irradiation unit disclosed in the present invention is an ultraviolet irradiation unit that can be installed in an air-conditioning device, wherein the air-conditioning device includes an indoor unit having an indoor fan and an air-conditioning control unit that controls the operation of the indoor unit. The ultraviolet irradiation unit includes: a light source that irradiates ultraviolet rays to the indoor unit; and a light source control unit that can communicate with the air-conditioning control unit and control the operation of the light source, and the light source control unit turns on the power of the light source when receiving a first signal sent from the air-conditioning control unit.

[0011] According to the ultraviolet irradiation unit of the present disclosure, it is no longer necessary to pre-store a control program for controlling the ultraviolet irradiation unit in the air conditioning control unit of the air conditioning device in which the ultraviolet irradiation unit can be installed. Therefore, by using the ultraviolet irradiation unit of the present disclosure, the structure of the air conditioning control unit can be simplified.

[0012] (2) In the ultraviolet irradiation unit of the present disclosure, it is preferable that the light source control unit turns off the power supply of the light source when a predetermined period of time has elapsed after receiving the first signal.

[0013] In this case, the light source can be easily turned on and off by the light source control unit, and the structure of the light source control unit of the ultraviolet irradiation unit can be simplified.

[0014] (3) In the ultraviolet irradiation unit of the present disclosure, preferably, when the air conditioner stops operating or the indoor fan stops operating, upon receiving a second signal sent from the air conditioner control unit, the light source control unit turns off the power supply of the light source.

[0015] In this case, the light source control unit can easily turn on and off the light source according to the operating state of the air conditioner.

[0016] (4) The air conditioning device disclosed in the present invention includes: an indoor unit, the indoor unit having a casing, an indoor fan and a collecting member, the casing having an air inlet for sucking in indoor air, the indoor fan being housed in the casing, and the collecting member being housed in the casing; an air conditioning control unit, the air conditioning control unit controlling the operation of the indoor unit; and an ultraviolet irradiation unit, the ultraviolet irradiation unit having a light source and a light source control unit, the light source irradiating ultraviolet rays to the collecting member, the light source control unit being able to communicate with the air conditioning control unit and control the operation of the light source, and when the light source control unit receives a first signal sent from the air conditioning control unit, the light source control unit turns on the power of the light source.

[0017] According to the air conditioning device of the present disclosure, it is no longer necessary to store in advance a control program for controlling the ultraviolet irradiation unit in the air conditioning control unit. Therefore, in the air conditioning device of the present disclosure, the structure of the air conditioning control unit can be simplified.

[0018] (5) In the air conditioning device of the present disclosure, it is preferable that the air conditioning control unit issues the first signal when the operation of the air conditioning device is started or when the operation of the indoor fan is started.

[0019] In this case, the configuration of the air conditioning control unit can be simplified.

[0020] (6) In the air conditioning device of the present disclosure, preferably, the light source control unit turns off the power supply of the light source after a predetermined period of time has elapsed after receiving the first signal.

[0021] In this case, the light source can be easily turned on and off by the light source control unit according to the operating state of the air conditioner.

[0022] (7) In the air conditioning device of the present disclosure, preferably, when the air conditioning device stops operating or the indoor fan stops operating, the air conditioning control unit sends a second signal, and when the light source control unit receives the second signal, it disconnects the power supply of the light source.

[0023] In this case, the structure of the light source control unit can be simplified.

[0024] (8) In the air-conditioning device disclosed herein, preferably, the air-conditioning device further includes a notification unit, and the light source control unit sends a third signal to the air-conditioning control unit when an abnormality of the light source is detected, and the air-conditioning control unit makes the notification unit make a notification when receiving the third signal.

[0025] In this case, the user can be informed of the abnormality of the light source by the notification unit.

[0026] (9) In the air conditioning device of the present disclosure, the light source control unit receives first information related to the indoor temperature from the air conditioning control unit, and the light source control unit turns on and off the power of the light source based on the first information.

[0027] In this case, the degradation of the light source due to the influence of the ambient temperature can be suppressed by the light source control unit having a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The schematic structure diagram of an air conditioning device including the ultraviolet irradiation unit of the present disclosure.

[0029] Figure 2 1 is a control block diagram of the air conditioning device of the present disclosure.

[0030] Figure 3 It is a perspective view showing an indoor unit of the air conditioning apparatus of the present disclosure.

[0031] Figure 4 It is a cross-sectional view showing the indoor unit in a state where the decorative panel is removed.

[0032] Figure 5 It is a perspective view showing the indoor unit in a state where the decorative panel and the protective member are removed.

[0033] Figure 6 It is a partially enlarged perspective view showing a state where the ultraviolet irradiation unit is installed in an air conditioning device.

[0034] Figure 7 It is the control flow chart of the air conditioning control unit.

[0035] Figure 8This is a control flow chart of the light source control unit according to the first embodiment.

[0036] Fig. 9 This is a control flow chart of the light source control unit according to the second embodiment.

[0037] Fig.10 This is a control flow chart of the light source control unit according to the third embodiment.

[0038] Fig.11 This is a control flow chart of the light source control unit according to the fourth embodiment. DETAILED DESCRIPTION

[0039] Hereinafter, embodiments of the ultraviolet irradiation unit and the air conditioning apparatus including the ultraviolet irradiation unit of the present disclosure will be described in detail with reference to the accompanying drawings.

[0040] (Overview of air conditioning equipment)

[0041] Figure 1 The schematic structure diagram of an air conditioning device including the ultraviolet irradiation unit of the present disclosure. Figure 1 The air conditioning device 10 shown is an embodiment of the air conditioning device of the present disclosure. By performing a vapor compression refrigeration cycle, it is possible to perform cooling and heating of a target space constructed inside a building, and adjust the temperature of the air in the target space to a specified target temperature. The air conditioning device 10 includes an indoor unit 20 and an outdoor unit 30. In the present embodiment, the air conditioning device 10 illustrates a structure in which one outdoor unit 30 is connected to one indoor unit 20. However, the number of indoor units 20 and outdoor units 30 is not limited thereto. In addition, in the present embodiment, an air conditioning device 10 is illustrated in which a refrigerant is circulated in a refrigerant circuit to perform cooling and heating. However, the air conditioning device of the present disclosure is not limited thereto, and may also be an air conditioning device that circulates cold water and hot water supplied from a heat source device to perform cooling and heating, and the indoor unit may also be a so-called fan coil unit.

[0042] The indoor unit 20 includes a casing 21 , an indoor fan 22 , an indoor heat exchanger 23 , and a capturing member 24 .

[0043] The housing 21 includes an air inlet 25 and an air supply port 26. The indoor fan 22 is configured to introduce indoor air (return air RA) into the interior of the housing 21 from the air inlet 25, and after the introduced air exchanges heat with the refrigerant in the indoor heat exchanger 23, the air (supply air SA) is blown out into the room from the air supply port 26. The indoor fan 22 includes, for example, a motor (not shown) whose operating speed can be adjusted by inverter control. The indoor heat exchanger 23 constitutes a part of the refrigerant circuit 40 to be described later. The indoor heat exchanger 23 is a cross-fin tube type or micro-channel type heat exchanger for exchanging heat with indoor air.

[0044] The indoor unit 20 includes a collection member 24 inside the housing 21. The collection member 24 is a member for collecting dust contained in the air (return air RA) in the indoor space, and is arranged inside the housing 21 and near the suction port 25. In the air conditioning device 10, the total amount of air introduced into the housing 21 from the suction port 25 passes through the collection member 24.

[0045] The air conditioning device 10 of the present disclosure further includes an ultraviolet irradiation unit 50. The ultraviolet irradiation unit 50 is arranged inside the housing 21 of the indoor unit 20. The ultraviolet irradiation unit 50 is a unit for irradiating ultraviolet rays UV to the collection member 24, and includes a light source 51. The light source 51 includes an LED element that emits ultraviolet rays UV by being energized. A lens (not shown) is mounted on the light source 51, and the ultraviolet rays UV emitted by the light source 51 are diffused through the lens and irradiated to the collection member 24 as a part of the indoor unit 20.

[0046] The outdoor unit 30 includes a housing 31, an outdoor fan 32, an outdoor heat exchanger 33, a compressor 34, a four-way reversing valve 35, an electric expansion valve 36, a liquid shutoff valve 37, and a gas shutoff valve 38. The compressor 34, the four-way reversing valve 35, the outdoor heat exchanger 33, the electric expansion valve 36, the liquid shutoff valve 37, and the gas shutoff valve 38 constitute a part of a refrigerant circuit 40 described later.

[0047] The air conditioning device 10 has a communication pipe 27. The communication pipe 27 circulates the refrigerant between the indoor unit 20 and the outdoor unit 30. The air conditioning device 10 includes a refrigerant circuit 40, which includes a compressor 34, a four-way reversing valve 35, an outdoor heat exchanger 33, an electric expansion valve 36, a liquid stop valve 37, an indoor heat exchanger 23, a gas stop valve 38, and refrigerant pipes connecting them. The refrigerant circuit 40 includes a gas refrigerant pipe 40G and a liquid refrigerant pipe 40L.

[0048] The outdoor fan 32 includes a motor (not shown) whose operating speed can be adjusted by inverter control. The outdoor fan 32 is configured to introduce outdoor air into the interior of the housing 31, and after the introduced air exchanges heat with the refrigerant in the outdoor heat exchanger 33, the air is blown out to the outside of the housing 31.

[0049] The outdoor heat exchanger 33 is, for example, a cross-fin-tube type or a micro-channel type heat exchanger, and is used to perform heat exchange with the refrigerant using the air as a heat source.

[0050] The compressor 34 sucks low-pressure gas refrigerant and discharges high-pressure gas refrigerant. The compressor 34 includes a motor (not shown) whose operating speed can be adjusted by inverter control. The compressor 34 is a variable capacity type (capacity variable type) in which the capacity (capacity) can be changed by the motor being controlled by the inverter. In addition, in the present embodiment, the air conditioning device 10 including one compressor 34 in the outdoor unit 30 is illustrated, but the structure of the air conditioning device disclosed in the present invention is not limited to this.

[0051] The four-way reversing valve 35 reverses the flow of the refrigerant in the refrigerant pipe, and supplies the refrigerant discharged from the compressor 34 to one of the outdoor heat exchanger 33 and the indoor heat exchanger 23 in a switching manner. Thus, the air conditioning device 10 can switch between cooling operation and heating operation. The electric expansion valve 36 is composed of an electric valve that can adjust the refrigerant flow rate, etc.

[0052] The liquid stop valve 37 and the gas stop valve 38 are manual on-off valves. The liquid stop valve 37 and the gas stop valve 38 block the flow of the refrigerant in the gas refrigerant pipe 40G and the liquid refrigerant pipe 40L by closing, and allow the flow of the refrigerant in the gas refrigerant pipe 40G and the liquid refrigerant pipe 40L by opening.

[0053] The indoor unit 20 includes an indoor temperature sensor 41 for detecting the temperature of the return air RA. The indoor temperature sensor 41 is connected to the air conditioning control unit 15 described later. The outdoor unit 30 includes a refrigerant temperature sensor, an external air temperature sensor, etc., which are not shown. In the air conditioning device 10, the evaporation pressure, condensation pressure, superheat, etc. of the indoor heat exchanger 23 and the outdoor heat exchanger 33 are obtained using the detection values ​​of the above-mentioned sensors, and the rotation speed of the compressor 34, the opening degree of the electric expansion valve 36, etc. are controlled to adjust these values.

[0054] When the air conditioner 10 of the above structure performs cooling operation, the four-way reversing valve 35 is kept in the Figure 1The state shown by the solid line in the middle. The high-temperature and high-pressure gaseous refrigerant discharged from the compressor 34 flows into the outdoor heat exchanger 33 through the four-way reversing valve 35, and is condensed and liquefied by heat exchange with the outdoor air under the action of the outdoor fan 32. When the air-conditioning device 10 performs cooling operation, the outdoor heat exchanger 33 acts as a condenser. The liquefied refrigerant passes through the fully open electric expansion valve 36 and flows into the indoor unit 20. In the indoor unit 20, the refrigerant evaporates by heat exchange with the indoor air in the indoor heat exchanger 23. The indoor air cooled by the evaporation of the refrigerant is blown into the room by the indoor fan 22, and the room is cooled. The refrigerant evaporated in the indoor heat exchanger 23 returns to the outdoor unit 30 through the gas refrigerant pipe 40G, and is sucked into the compressor 34 through the four-way reversing valve 35. When the air-conditioning device 10 performs cooling operation, the indoor heat exchanger 23 acts as an evaporator.

[0055] When the air conditioner 10 performs heating operation, the four-way switching valve 35 is kept in the Figure 1 The state shown by the dotted line in the middle. The high-temperature and high-pressure gaseous refrigerant discharged from the compressor 34 flows into the indoor heat exchanger 23 of the indoor unit 20 through the four-way reversing valve 35. In the indoor heat exchanger 23, the refrigerant exchanges heat with the indoor air and condenses and liquefies. When the air-conditioning device 10 performs heating operation, the indoor heat exchanger 23 acts as a condenser. The indoor air heated by the condensation of the refrigerant is blown into the room by the indoor fan 22, and the room is heated. The refrigerant liquefied in the indoor heat exchanger 23 returns to the outdoor unit 30 through the liquid refrigerant pipe 40L, is decompressed to a specified low pressure in the electric expansion valve 36, and evaporates by heat exchange with the outdoor air in the outdoor heat exchanger 33. The refrigerant evaporated and gasified in the outdoor heat exchanger 33 is sucked into the compressor 34 via the four-way reversing valve 35. When the air-conditioning device 10 performs heating operation, the outdoor indoor heat exchanger 33 acts as an evaporator.

[0056] [About the Control Department]

[0057] Figure 2 is a control block diagram of the air conditioning device disclosed in the present invention. Figure 2 As shown, the air conditioning device 10 includes an air conditioning control unit 15 for controlling the operation of the air conditioning device 10. The air conditioning control unit 15 includes an indoor control unit (not shown) configured in the indoor unit 20 and an outdoor control unit (not shown) configured in the outdoor unit 30. The indoor control unit and the outdoor control unit are connected to each other via a transmission line so as to be able to communicate with each other. The air conditioning control unit 15 is connected to a remote controller 16 for a user to operate, stop, and change the set temperature of the indoor unit 20.

[0058] The air conditioning control unit 15 is a device for controlling the operation of the indoor unit 20 and the outdoor unit 30, and is composed of, for example, a microcomputer including a processor such as a CPU and a memory such as a RAM and a ROM. The air conditioning control unit 15 can also be implemented as hardware using an LSI, an ASIC, an FPGA, etc. The air conditioning control unit 15 executes a program installed in the memory through a processor to perform a prescribed function. The detection values ​​of the sensors provided in the indoor unit 20 and the outdoor unit 30 are input to the air conditioning control unit 15. The air conditioning control unit 15 controls the operation of the indoor fan 22, the outdoor fan 32, the compressor 34, the four-way reversing valve 35, and the electric expansion valve 36 based on the detection values ​​of the sensors.

[0059] The air conditioning control unit 15 sends a first signal S1 and a second signal S2. The first signal S1 is a signal that allows the operation of an optional component installed in the air conditioning device 10, and the second signal S2 is a signal that stops the optional component. In the air conditioning device 10, the first signal S1 and the second signal S2 sent by the air conditioning control unit 15 are input to the light source control unit 52 described later.

[0060] Preferably, the air conditioning control unit 15 sends the first information J1 to the light source control unit 52 described later. The first information J1 is information related to the indoor temperature detected by the indoor temperature sensor 41. In the air conditioning device 10, the first information J1 sent by the air conditioning control unit 15 is input to the light source control unit 52. The light source control unit 52 can grasp the temperature around the light source 51 based on the first information J1. In addition, in the air conditioning device 10 of the present disclosure, the first information J1 may not be sent from the air conditioning control unit 15 to the light source control unit 52.

[0061] The remote controller 16 is an operation unit that allows the user to operate, stop, change settings, and the like of the air conditioner 10. In the air conditioner 10 of the present disclosure, the remote controller 16 is provided with a display unit 17. The display unit 17 is a portion that can display the operating state, setting values, and the like of the air conditioner 10. In the air conditioner 10, the user can understand the operating state of the air conditioner 10 based on the information displayed by the display unit 17.

[0062] In the air conditioning device 10, the air conditioning control unit 15 is connected to the ultraviolet irradiation unit 50. The ultraviolet irradiation unit 50 includes a light source control unit 52 that controls the operation of the ultraviolet irradiation unit 50. The light source control unit 52 is a device that controls the operation of the light source 51 (the power supply of the light source 51 is turned on and off), for example, it is composed of a microcomputer including a processor such as a CPU, and a memory such as a RAM and a ROM. The light source control unit 52 can also be implemented as hardware using LSI, ASIC, FPGA, etc. The light source control unit 52 executes a program installed in the memory through the processor to perform a prescribed function. The light source control unit 52 can detect an abnormality of the light source 51. When the light source control unit 52 detects an abnormality of the light source 51, it sends a third signal S3. The third signal S3 is a signal indicating that an abnormality has occurred in the light source 51. In the air conditioning device 10, the third signal S3 sent by the light source control unit 52 is input to the air conditioning control unit 15.

[0063] (Structure of indoor unit)

[0064] Figure 3 It is a perspective view showing an indoor unit of the air conditioning apparatus of the present disclosure. Figure 4 It is a cross-sectional view showing the indoor unit in a state where the decorative panel is removed. Figure 5 FIG. 2 is a perspective view of an indoor unit with the decorative panel and protective components removed. Figure 3 to Figure 5 As shown, the indoor unit 20 has a so-called box-type form, and includes a casing 21 and a decoration panel 28 .

[0065] The housing 21 has a substantially rectangular shape when viewed from below, and includes a first housing 21a disposed on the upper side and a second housing 21b disposed on the lower side. Figure 4 As shown, a space A for accommodating the indoor fan 22, the indoor heat exchanger 23, the collection member 24, the ultraviolet irradiation unit 50, etc. is formed inside the housing 21. The space A also serves as a flow path for the air in the housing 21. Figure 4 As shown, at the lower end of the housing 21, an air inlet 25 is formed in the central part of a rectangle, and air supply ports 26 are formed at four locations surrounding the air inlet 25. The air inlet 25 and the air supply port 26 are openings formed at the lower end of the space A. A protective member 70 is disposed at the lower end of the air inlet 25. The protective member 70 is a member for preventing fingers from entering the air inlet 25. In the indoor unit 20 in a normal use state, the lower end of the second housing 21b is covered by a decorative panel 28 (see Figure 3 ).

[0066] like Figure 3As shown, the decorative panel 28 has a substantially rectangular shape when viewed from above, and a suction grille 29 is disposed in the center of the rectangle. The decorative panel 28 includes four blow-out ports 28a disposed to surround the suction grille 29. A slit-shaped opening 29a is formed in the suction grille 29. The opening 29a is connected to the suction port 25 (see FIG. 25 ). Figure 4 ) and space A (refer to Figure 4 The air outlet 28a of the decorative panel 28 is connected via the air supply port 26 (see Figure 3 ) and space A (refer to Figure 5 The indoor unit 20 draws indoor air into the casing 21 from the suction port 25 (opening 29a), and supplies the air drawn into the casing 21 to the indoor from the air supply port 26 and the blow-off port 28a.

[0067] like Figure 4 As shown, in the indoor unit 20, an indoor fan 22 and an indoor heat exchanger 23 are included inside the housing 21 (space A). The indoor fan 22 is a fan for circulating indoor air. The indoor heat exchanger 23 constitutes a part of the refrigerant circuit 40, and refrigerant circulates between it and the outdoor unit 30 through the connecting pipe 27. In the indoor unit 20, by driving the indoor fan 22, indoor air (return air RA) is sucked into the housing 21 from the suction port 25 (opening 29a) and passed through the indoor heat exchanger 23, and the cooled or heated air (supply air SA) is supplied to the room from the supply port 26 and the blow-out port 28a.

[0068] (Collection component)

[0069] Figure 6 FIG. 1 is a partially enlarged perspective view showing a state where the ultraviolet irradiation unit is installed in an air conditioning device. Figures 4 to 6 As shown, the indoor unit 20 includes a collection member 24 inside the housing 21. The collection member 24 is a member for collecting dust contained in the indoor air (return air RA). The collection member 24 includes a first filter 24a as a first collection member 24 and a second filter 24b as a second collection member 24. The second filter 24b is a filter for collecting (finer) dust that is not completely captured in the first filter 24a. Compared with the first filter 24a, its mesh is finer, so it has a higher collection efficiency (about 60 to 95%). In other words, the mesh of the first filter 24a is coarser than the mesh of the second filter 24b. In addition, in the present embodiment, the case where the components constituting the collection member 24 are all filters is illustrated, but it can also be an electric dust collector.

[0070] like Figure 5As shown, the first filter 24a is arranged on the upstream side of the second filter 24b in the air flow direction. In the following description, the surface of the first filter 24a on the upstream side in the air flow direction is referred to as the lower end surface 24c. In addition, the capture member 24 shown in this embodiment includes the first filter 24a and the second filter 24b, however, the capture member in the indoor unit of the present disclosure may also be only one of the first filter and the second filter.

[0071] In the indoor unit 20, the air (return air RA) sucked into the housing 21 from the suction port 25 (opening 29a) passes through the collection member 24. At this time, dust contained in the return air RA is collected by the first filter 24a and the second filter 24b. In the indoor unit 20, dust, which is a source of harmful components and odor components, adheres to the lower end surface 24c of the first filter 24a.

[0072] (Ultraviolet irradiation unit)

[0073] like Figure 6 As shown, the indoor unit 20 includes an ultraviolet irradiation unit 50. The ultraviolet irradiation unit 50 is a part for irradiating ultraviolet rays UV to the lower end surface 24c of the first filter 24a, and includes a light source 51 and a light source control unit 52 (see Figure 2 ) and a cover member 53. The light source 51 includes an LED element that emits ultraviolet UV when powered. A lens (not shown) is mounted on the light source 51, and the ultraviolet UV emitted by the light source 51 is diffused to substantially the entire surface of the lower end surface 24c through the lens. In addition, the light source 51 shown in the present embodiment is fixed to the housing 21 and irradiates the ultraviolet UV to the lower end surface 24c from a fixed position, but it can also be configured to also include a displacement mechanism that displaces the light source 51 relative to the housing 21, and the ultraviolet UV is irradiated to the lower end surface 24c while the light source 51 is displaced by the displacement mechanism.

[0074] The ultraviolet irradiation unit 50 is arranged at a position outside the flow of air flowing from the air inlet 25 to the collecting member 24. In other words, the ultraviolet irradiation unit 50 is arranged at a position that does not overlap with the air inlet 25 and the collecting member 24 when viewed from above. If the ultraviolet irradiation unit 50 is arranged in the flow of air flowing from the air inlet 25 to the collecting member 24, the ultraviolet irradiation unit 50 becomes a major factor that increases the ventilation resistance. In the indoor unit 20 of the present disclosure, the increase in ventilation resistance is suppressed by arranging the ultraviolet irradiation unit 50 at a position outside the flow of air flowing from the air inlet 25 to the collecting member 24.

[0075] The ultraviolet irradiation unit 50 includes a cover member 53. The cover member 53 also serves as a member for supporting the light source 51 relative to the housing 21, and is screwed to the housing 21. The cover member 53 includes a main body 53a and an opening 53b. The ultraviolet UV emitted from the light source 51 is irradiated to the space A outside the cover member 53 through the opening 53b. The ultraviolet UV irradiated to the space A outside the cover member 53 through the opening 53b is irradiated to the lower end surface 24c of the collection member 24.

[0076] (About the Notification Department)

[0077] like Figure 2 As shown, the air conditioning device 10 further includes a notification unit 60. In the air conditioning device 10, when the light source control unit 52 detects an abnormality in the light source 51, it sends the third signal S3 to the air conditioning control unit 15. In the air conditioning device 10, when the air conditioning control unit 15 receives the third signal S3, the air conditioning control unit 15 causes the notification unit 60 to make a notification. In the air conditioning device 10 having the above structure, the user can be informed of the abnormality in the light source 51 through the notification unit. In addition, in the air conditioning device 10, when the light source control unit 52 detects an abnormality in the light source 51, for example, information for notifying the abnormality can be displayed on the display unit 17 of the remote controller 16.

[0078] [About the control contents executed by the air conditioning control unit]

[0079] Figure 7 is a control flow chart of the air conditioning control unit. Figure 3 ) and the operation of the air conditioner 10 is set to be turned on, the air conditioner control unit 15 (refer to Figure 3 )start Figure 7 The control actions shown. Figure 7 The control action shown is an action for controlling the action of an optional component that can be installed in the air conditioning device 10. In the present disclosure, the case where the optional component that can be installed in the air conditioning device 10 is the ultraviolet irradiation unit 50 is exemplified and explained. In addition, optional components other than the ultraviolet irradiation unit 50 include an electric dust collector, a deodorizing unit, a discharge unit that generates active species, and the like.

[0080] like Figure 7As shown, when the control action for the ultraviolet irradiation unit 50 starts, the air conditioning control unit 15 executes step S101. In step S101, the air conditioning control unit 15 determines whether the ultraviolet irradiation unit 50 is connected to the air conditioning device 10 (air conditioning control unit 15). In step S101, when the air conditioning control unit 15 determines that the ultraviolet irradiation unit 50 is connected to the air conditioning device 10 (air conditioning control unit 15) (yes), it then executes step S102. On the other hand, in step S101, when the air conditioning control unit 15 determines that the ultraviolet irradiation unit 50 is not connected to the air conditioning device 10 (air conditioning control unit 15) (no), it determines that it is not necessary to execute the control action of the ultraviolet irradiation unit 50 and ends the control.

[0081] In step S102, the air conditioning control unit 15 determines whether there is an abnormality in the indoor unit 20. In step S102, if the air conditioning control unit 15 determines that there is no abnormality in the indoor unit 20 (yes), it then executes step S103. On the other hand, in step S102, if the air conditioning control unit 15 determines that there is an abnormality in the indoor unit 20 (no), it determines that the control operation of the ultraviolet irradiation unit 50 cannot be performed and ends the control.

[0082] In step S103, the air conditioning control unit 15 determines whether the indoor fan 22 is turned on. In step S103, if the air conditioning control unit 15 determines that the indoor fan 22 is turned on (yes), the air conditioning control unit 15 then executes step S104. On the other hand, in step S103, if the air conditioning control unit 15 determines that the indoor fan 22 is not turned on (no), the air conditioning control unit 15 repeatedly executes the determination of step S103 until the indoor fan 22 is turned on.

[0083] In step S104, the air conditioning control unit 15 transmits the first signal S1. The first signal S1 is a signal that allows the optional components installed in the air conditioning device 10 to operate, and is a common signal corresponding to all optional components that can be installed. In other words, in the air conditioning device 10 of the present disclosure, the air conditioning control unit 15 transmits the first signal S1 when the conditions (1) to (3) are all satisfied, namely, (1) the ultraviolet irradiation unit 50 is connected to the air conditioning device 10 (air conditioning control unit 15), (2) there is no abnormality in the indoor unit 20, and (3) the indoor fan 22 is turned on. In addition, in the air conditioning device 10 of the present disclosure, a structure in which the air conditioning control unit 15 transmits the first signal S1 when the conditions (1) to (3) are all satisfied is illustrated, but a structure in which the air conditioning control unit 15 transmits the first signal S1 when only the conditions (1) and (2) are satisfied may be sufficient. In this case, the air conditioning control unit 15 can transmit the first signal even if the indoor fan 22 is turned off. In this case, the ultraviolet light UV can be irradiated by the light source 51 when the indoor fan 22 is turned off.

[0084] After the air conditioning control unit 15 sends the first signal S1 in step S104, it proceeds to step S105. In step S105, the air conditioning control unit 15 determines whether the remote controller 16 is turned on. In step S105, if the air conditioning control unit 15 determines that the remote controller 16 is turned on (yes), it proceeds to step S106. On the other hand, in step S105, if the air conditioning control unit 15 determines that the remote controller 16 is not turned on (no) (that is, if the air conditioning device 10 is turned off), it proceeds to step (S109).

[0085] In step S106, the air conditioning control unit 15 determines whether there is an abnormality in the indoor unit 20. In step S106, if the air conditioning control unit 15 determines that there is no abnormality in the indoor unit 20 (yes), the air conditioning control unit 15 then executes step S107. On the other hand, in step S106, if the air conditioning control unit 15 determines that there is an abnormality in the indoor unit 20 (no), the air conditioning control unit 15 then executes step S109.

[0086] In step S107, the air conditioning control unit 15 determines whether the indoor fan 22 is turned on. In step S107, when the air conditioning control unit 15 determines that the indoor fan 22 is turned on (yes), the air conditioning control unit 15 repeatedly executes steps S105 to S107 until the indoor fan 22 is turned off. On the other hand, in step S107, when the air conditioning control unit 15 determines that the indoor fan 22 is not turned on (no) (that is, when the air conditioning device 10 is in the automatic stop state caused by hot start or stop), it then executes step S108.

[0087] In step S108, the air conditioning control unit 15 sends a second signal S2. The second signal S2 is a signal for stopping the optional components installed in the air conditioning device 10, and is a common signal corresponding to all optional components that can be installed. In other words, in the air conditioning device 10 of the present disclosure, after the first signal S1 is sent, the air conditioning control unit 15 sends the second signal S2 when (4) the remote controller 16 is turned on and (5) there is no abnormality in the indoor unit 20, but (6) the indoor fan 22 is not turned on.

[0088] In the air-conditioning device 10, after the first signal S1 is sent, when the air-conditioning device 10 is set to the disconnected state by the remote controller 16, or when an abnormality occurs in the indoor unit 20, in step S109, the air-conditioning control unit 15 sends the second signal S2 and ends the control action for the ultraviolet irradiation unit 50.

[0089] As described above, in the air conditioning device 10 of the present disclosure, the air conditioning control unit 15 only sends the first signal S1 that allows the operation of the ultraviolet irradiation unit 50 and the second signal S2 that stops the operation of the ultraviolet irradiation unit 50. In other words, the air conditioning control unit 15 does not control the operation of the ultraviolet irradiation unit 50 (specifically, the on-off operation of the light source 51).

[0090] [About the control contents executed by the light source control unit]

[0091] Figure 8 This is a control flow chart of the light source control unit according to the first embodiment. Figure 8 The control operation shown is a first embodiment of the control operation for controlling the operation of the light source 51 of the ultraviolet irradiation unit 50. When power is supplied to the ultraviolet irradiation unit 50, the light source control unit 52 (see Figure 3 )start Figure 8 The control actions shown.

[0092] like Figure 8 As shown, when the light source control unit 52 starts the operation control of the light source 51, step S201 is executed. In step S201, the light source control unit 52 determines whether there is an input of the first signal S1. In step S201, when the light source control unit 52 determines that there is an input of the first signal S1 (yes), the light source control unit 52 then executes step S202. On the other hand, in step S201, when the light source control unit 52 determines that there is no input of the first signal S1 (no), the light source control unit 52 repeatedly executes step S201 until there is an input of the first signal S1.

[0093] In step S202 , the light source control unit 52 turns on the power of the light source 51 . At this time, in the air conditioning device 10 , ultraviolet rays UV are irradiated from the light source 51 toward the lower end surface 24 c of the collection member 24 .

[0094] After the light source control unit 52 turns on the power of the light source 51 in step S202, step S203 is then executed. In step S203, the light source control unit 52 determines whether the second signal S2 is input. In step S203, if the light source control unit 52 determines that the second signal S2 is input (yes), step S204 is then executed. On the other hand, in step S203, if the light source control unit 52 determines that the second signal S2 is not input (no), step S203 is repeatedly executed until the second signal S2 is input.

[0095] In step S204, the light source control unit 52 turns off the power of the light source 51. At this time, in the air-conditioning device 10, the irradiation of the ultraviolet rays UV from the light source 51 toward the collection member 24 stops.

[0096] After turning off the power of the light source 51 in step S204 , the light source control unit 52 returns to step S201 and executes the control operations after step S201 again.

[0097] As described above, in the air conditioning device 10 of the present disclosure, the light source control unit 52 controls the on-off of the power supply of the light source 51 .

[0098] In the air conditioning device 10 of the present disclosure, it is preferred that the light source control unit 52 turns the power of the light source 51 on and off based on the first information J1 sent from the air conditioning control unit 15. It is known that when the light source 51 is used in a high temperature atmosphere (for example, an atmosphere exceeding 40 degrees), its life will be reduced. In the air conditioning device 10 of the present disclosure, the light source control unit 52 turns the power of the light source 51 on and off based on the first information J1. Specifically, when the light source control unit 52 detects that the ambient temperature of the light source 51 exceeds 40 degrees according to the first information J1, the power of the light source 51 is set to off, and when the ambient temperature of the light source 51 is detected to be less than 40 degrees, the power of the light source 51 is set to on. In the air conditioning device 10, the above-mentioned structure can suppress the reduction of the life of the light source 51. In addition, in the air conditioning device 10 of the above-mentioned structure, it is not necessary to set a temperature sensor in the ultraviolet irradiation unit 50, so the structure of the ultraviolet irradiation unit 50 can be simplified. In addition, in the air conditioning device 10, the air conditioning control unit 15 may send the first signal S1 when the first information J1 is added as a condition for sending the first signal S1 and it is determined based on the detection value of the indoor temperature sensor 41 that the ambient temperature of the light source 51 is less than 40 degrees.

[0099] Fig. 9 This is a control flow chart of the light source control unit according to the second embodiment. Fig. 9 The control operation shown in FIG. 1 is a second embodiment of the control operation for controlling the operation of the light source 51 of the ultraviolet irradiation unit 50. In the air conditioning device 10, the light source control unit 52 (see Figure 3 ) can also be followed Fig. 9 The control flow of the light source control unit 52 of the second embodiment is different from the control flow of the light source control unit 52 of the first embodiment (see Figure 8 ). Here, Figure 8 The different structures in the processes shown are described, and the description of the common structures is omitted.

[0100] like Fig. 9As shown, when the light source control unit 52 starts the operation control of the light source 51, step S200 is executed. In step S200, the light source control unit 52 determines whether there is an abnormality in the light source 51. In step S200, when the light source control unit 52 determines that there is no abnormality in the light source 51 (yes), step S201 is then executed. On the other hand, in step S200, when the light source control unit 52 determines that there is an abnormality in the light source 51 (no), step S205 is then executed.

[0101] In step S205, the light source control unit 52 transmits the third signal S3. When the third signal S3 is input, the air conditioning control unit 15 notifies the notification unit 60.

[0102] As described above, in the air conditioning device 10 of the present disclosure, the light source control unit 52 transmits the third signal S3 when detecting an abnormality in the light source 51 , and the air conditioning control unit 15 receiving the third signal S3 causes the notification unit 60 to make a notification.

[0103] Fig.10 This is a control flow chart of the light source control unit according to the third embodiment. Fig.10 The control operation shown in FIG. 1 is a third embodiment of the control operation for controlling the operation of the light source 51 of the ultraviolet irradiation unit 50. In the air conditioning device 10, the light source control unit 52 (see FIG. 11 ) Figure 3 ) can also be followed Fig.10 The operation of the light source 51 is controlled according to the process shown.

[0104] like Fig.10 As shown, when the light source control unit 52 starts the operation control of the light source 51, step S211 is executed. In step S211, the light source control unit 52 determines whether there is an input of the first signal S1. In step S211, when the light source control unit 52 determines that there is an input of the first signal S1 (yes), the light source control unit 52 then executes step S212. On the other hand, in step S211, when the light source control unit 52 determines that there is no input of the first signal S1 (no), the light source control unit 52 repeatedly executes step S211 until there is an input of the first signal S1.

[0105] In step S212 , the light source control unit 52 turns on the power of the light source 51 . At this time, in the air conditioning device 10 , ultraviolet rays UV are irradiated from the light source 51 toward the lower end surface 24 c of the collection member 24 .

[0106] After the light source control unit 52 turns on the power of the light source 51 in step S212, step S213 is then executed. In step S213, the light source control unit 52 determines whether the first prescribed period X1 has passed after the power of the light source 51 has been turned on. In step S213, if the light source control unit 52 determines that the first prescribed period X1 has passed (yes), step S215 is executed. On the other hand, in step S213, if the light source control unit 52 determines that the first prescribed period X1 has not passed (no), step S214 is executed.

[0107] In step S214, the light source control unit 52 determines whether the second signal S2 is input. In step S214, if the light source control unit 52 determines that the second signal S2 is input (yes), it then executes step S215. On the other hand, in step S214, if the light source control unit 52 determines that the second signal S2 is not input (no), it repeatedly executes step S214 until the second signal S2 is input.

[0108] In step S215, the light source control unit 52 turns off the power of the light source 51. After the light source control unit 52 turns off the power of the light source 51 in step S215, step S216 is then performed. In this way, in the air conditioning device 10, the power of the light source 51 may be turned off when the first predetermined time X1 has passed after the power of the light source 51 is turned on, regardless of whether the second signal S2 is input.

[0109] In step S216, the light source control unit 52 determines whether the second predetermined period X2 has passed after the power of the light source 51 is turned off. In step S216, if the light source control unit 52 determines that the second predetermined period X2 has passed (yes), the process returns to step S211. On the other hand, in step S216, if the light source control unit 52 determines that the second predetermined period X2 has not passed (no), the process repeatedly executes step S216 until the second predetermined period X2 has passed.

[0110] In the air conditioning device 10, when the Fig.10In the case of the control flow shown, for example, the light source 51 can be controlled to be turned on for three hours, then turned off for three hours, and then turned on again for three hours, so that the light source 51 is turned on for a total of six hours. Thus, the upper limit of the daily irradiation time of the light source 51 can be easily set. In this case, the power of the light source 51 can be turned on and off only by the function of the light source control unit 52. In the air-conditioning device 10, it is more preferred to extend the first prescribed period X1 according to the increase in usage time, taking into account the deterioration of the light source 51 with the increase in usage time. Thus, even when using a light source 51 whose usage time becomes longer, the prescribed irradiation intensity can be ensured, thereby suppressing the reduction in sterilization performance.

[0111] As described above, in the air conditioning device 10 of the present disclosure, the light source control unit 52 can turn on the light source 51 for the first predetermined period X1 and then turn off for the second predetermined period X2.

[0112] Fig.11 This is a control flow chart of the light source control unit according to the fourth embodiment. Fig.11 The control operation shown in FIG. 1 is a fourth embodiment of the control operation for controlling the operation of the light source 51 of the ultraviolet irradiation unit 50. In the air conditioning device 10, the light source control unit 52 (see FIG. 11 ) Figure 3 ) can also be followed Fig.11 The operation of the light source 51 is controlled according to the process shown.

[0113] like Fig.11 As shown, when the light source control unit 52 starts the control operation of the light source 51, step S220 is first executed to reset the accumulated irradiation time T of the light source 51 to "0", and then step S221 is executed.

[0114] In step S221, the light source control unit 52 determines whether the first signal S1 is input. In step S211, if the light source control unit 52 determines that the first signal S1 is input (yes), it then executes step S222. On the other hand, in step S221, if the light source control unit 52 determines that the first signal S1 is not input (no), it repeatedly executes step S221 until the first signal S1 is input.

[0115] In step S222, the light source control unit 52 determines whether the cumulative irradiation time T of the light source 51 is less than the predetermined threshold value Y. In step S222, if the light source control unit 52 determines that the cumulative irradiation time T of the light source 51 is less than the predetermined threshold value Y (yes), the light source control unit 52 then executes step S223. On the other hand, in step S222, if the light source control unit 52 determines that the cumulative irradiation time T of the light source 51 exceeds the predetermined threshold value Y (no), the light source control unit 52 then executes step S229.

[0116] In step S223 , the light source control unit 52 turns on the power of the light source 51 . At this time, in the air conditioning device 10 , ultraviolet rays UV are irradiated from the light source 51 toward the lower end surface 24 c of the collection member 24 .

[0117] After the light source control unit 52 turns on the power of the light source 51 in step S223, the process proceeds to step S224. In step S224, the light source control unit 52 starts to accumulate the irradiation time of the ultraviolet rays UV of the light source 51, and then proceeds to step S225.

[0118] In step S225, the light source control unit 52 determines whether the cumulative irradiation time T of the light source 51 is less than the predetermined threshold value Y. In step S225, if the light source control unit 52 determines that the cumulative irradiation time T of the light source 51 is less than the predetermined threshold value Y (yes), the light source control unit 52 then executes step S226. On the other hand, in step S225, if the light source control unit 52 determines that the cumulative irradiation time T of the light source 51 exceeds the predetermined threshold value Y (no), the light source control unit 52 then executes step S227.

[0119] In step S227 , the light source control unit 52 resets the cumulative irradiation time T of the light source 51 to “0”, and then executes step S228 .

[0120] In step S226, the light source control unit 52 determines whether the second signal S2 is input. In step S226, if the light source control unit 52 determines that the second signal S2 is input (yes), it continues to step S228. On the other hand, in step S226, if the light source control unit 52 determines that the second signal S2 is not input (no), it repeatedly executes steps S225 to S226 until the second signal S2 is input.

[0121] In step S228, the light source control unit 52 turns off the power of the light source 51. After the light source control unit 52 turns off the light source 51 in step S228, step S230 is executed. In the case of step S222 to step S229, the light source control unit 52 resets the accumulated irradiation time T of the light source 51 to "0" and then executes step S230.

[0122] In step S230, the light source control unit 52 determines whether it is the time when the light source 51 can irradiate the ultraviolet UV. In step S230, if the light source control unit 52 determines that it is the time when the light source 51 can irradiate the ultraviolet UV (yes), the process returns to step S221. On the other hand, in step S230, if the light source control unit 52 determines that it is not the time when the light source 51 can irradiate the ultraviolet UV (no), the process repeatedly executes step S230 until the time when the light source 51 can irradiate the ultraviolet UV is reached.

[0123] In the ultraviolet irradiation unit 50, the upper limit of the irradiation time of one day is set in consideration of the life of the light source 51. In a certain day, when the irradiation time of the ultraviolet UV of the light source 51 does not reach the upper limit, it is equivalent to the moment when the light source 51 can irradiate the ultraviolet UV. On the other hand, when the irradiation time of the ultraviolet UV of the light source 51 reaches the upper limit, it is equivalent to the moment when the light source 51 cannot irradiate the ultraviolet UV. When the irradiation time of one day exceeds the upper limit threshold value Y and the light source is disconnected through steps S227 and S229, the light source cannot irradiate on that day, so in step S230, it waits until the next day.

[0124] As described above, in the air conditioning device 10 of the present disclosure, the light source control unit 52 controls the on-off of the power supply of the light source 51 according to the accumulated irradiation time T of the light source 51 .

[0125] [Effects of the Embodiments]

[0126] (1) The ultraviolet irradiation unit 50 of the above-mentioned embodiment can be installed in the air conditioning device 10, which includes the indoor unit 20 having the indoor fan 22 and the air conditioning control unit 15 that controls the operation of the indoor unit 20. The ultraviolet irradiation unit 50 includes a light source 51 that irradiates ultraviolet rays UV to the indoor unit 20 and a light source control unit 52 that can communicate with the air conditioning control unit 15 and control the operation of the light source 51. In the ultraviolet irradiation unit 50, the light source control unit 52 turns on the power of the light source 51 when receiving the first signal S1 transmitted from the air conditioning control unit 15.

[0127] According to the ultraviolet irradiation unit 50 of the above structure, the air conditioning control unit 15 of the air conditioning device 10 to which the ultraviolet irradiation unit 50 can be mounted no longer needs to store a control program for controlling the ultraviolet irradiation unit 50 in advance. Therefore, the structure of the air conditioning control unit 15 of the air conditioning device 10 can be simplified.

[0128] (2) In the ultraviolet irradiation unit 50 of the above embodiment, the light source control unit 52 turns off the power supply of the light source 51 when the first predetermined period X1 has elapsed after receiving the first signal S1.

[0129] In this case, the light source 51 can be easily turned on and off by the light source control unit 52. The structure of the light source control unit 52 of the ultraviolet irradiation unit 50 can be simplified.

[0130] (3) In the ultraviolet irradiation unit 50 of the above embodiment, the light source control unit 52 turns off the power of the light source 51 when receiving the second signal S2 transmitted from the air conditioning control unit 15 when the air conditioning device 10 stops operating or the indoor fan 22 stops operating.

[0131] In this case, the light source control unit 52 can easily turn the light source 51 on and off according to the operating state of the air conditioner 10 .

[0132] (4) The air conditioning device 10 of the above embodiment includes: an indoor unit 20 having a housing 21, an indoor fan 22, and a collecting member 24, the housing 21 having an air inlet 25 for sucking indoor air, the indoor fan 22 being housed in the housing 21, and the collecting member 24 being housed in the housing 21; an air conditioning control unit 15 for controlling the operation of the indoor unit 20; and an ultraviolet irradiation unit 50 having a light source 51 for irradiating ultraviolet rays to the collecting member 24 and a light source control unit 52 capable of communicating with the air conditioning control unit 15 and controlling the operation of the light source 51. In the air conditioning device 10, the light source control unit 52 turns on the power of the light source 51 when receiving the first signal S1 transmitted from the air conditioning control unit 15.

[0133] According to the air conditioning device 10 of the present disclosure, it is no longer necessary to store in advance a control program for controlling the ultraviolet irradiation unit 50 in the air conditioning control unit 15. Therefore, in the air conditioning device 10, the configuration of the air conditioning control unit 15 can be simplified.

[0134] (5) In the air conditioning device 10 of the above embodiment, when the operation of the air conditioning device 10 is started or when the operation of the indoor fan 22 is started, the air conditioning control unit 15 transmits the first signal S1.

[0135] In this case, the configuration of the air-conditioning control unit 15 can be simplified.

[0136] (6) In the air conditioning apparatus 10 of the above embodiment, the light source control unit 52 turns off the power supply of the light source 51 after the first predetermined period X1 has elapsed after receiving the first signal S1.

[0137] In this case, the light source control unit 52 can easily turn the light source 51 on and off according to the operating state of the air conditioner 10 .

[0138] (7) In the air conditioning device 10 of the above embodiment, when the air conditioning device 10 stops operating or the indoor fan 22 stops operating, the air conditioning control unit 15 sends the second signal S2, and the light source control unit 52 disconnects the power supply of the light source 51 when receiving the second signal S2.

[0139] In this case, the structure of the light source control unit 52 can be simplified.

[0140] (8) The air conditioner 10 of the above embodiment further includes the notification unit 60. In the air conditioner 10, the air conditioner control unit 15 transmits the third signal S3 to the air conditioner control unit when an abnormality of the light source 51 is detected. When receiving the third signal S3, the air conditioner control unit 15 causes the notification unit 60 to make a notification.

[0141] In this case, the user can be informed of the abnormality of the light source 51 by the notification unit 60 .

[0142] (9) In the air conditioning apparatus 10 of the above embodiment, the light source control unit 52 receives the first information J1 related to the indoor temperature from the air conditioning control unit 15 and turns the power of the light source 51 on and off based on the first information J1.

[0143] In this case, the light source control unit 52 having a simple structure can suppress the degradation of the light source 51 due to the influence of the ambient temperature.

[0144] Although the embodiments 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 claims.

[0145] Explanation of symbols

[0146] 10: Air conditioning device;

[0147] 15: Air conditioning control unit;

[0148] 20: Indoor unit;

[0149] 21: Shell;

[0150] 22: Indoor fan;

[0151] 24: Capturing component;

[0152] 25: Suction port;

[0153] 50: ultraviolet irradiation unit;

[0154] 51: light source;

[0155] 52: light source control unit;

[0156] 60: Notification Department;

[0157] S1: first signal;

[0158] S2: second signal;

[0159] S3: third signal;

[0160] J1: First information;

[0161] X1: First prescribed period (prescribed period).

Claims

1. An ultraviolet irradiation unit (50) capable of being installed in an air conditioning device (10), the air conditioning device comprising an indoor unit (20) having an indoor fan (22) and an air conditioning control unit (15) for controlling the operation of the indoor unit (20), the ultraviolet irradiation unit comprising: a light source (51) for irradiating ultraviolet light (UV) to the indoor unit (20); as well as a light source control unit (52), wherein the light source control unit (52) is capable of communicating with the air conditioning control unit (15) and controlling the operation of the light source (51), The light source control unit (52) turns on the power of the light source (51) when receiving the first signal (S1) sent from the air conditioning control unit (15) to permit the operation of the ultraviolet irradiation unit (50), and does not turn on the power of the light source (51) when receiving the first signal (S1) after a specified period (X2) has passed since the power of the light source (51) was turned off.

2. The ultraviolet irradiation unit (50) according to claim 1, characterized in that: The light source control unit (52) turns off the power supply of the light source (51) when a predetermined period (X1) has passed after receiving the first signal (S1).

3. The ultraviolet irradiation unit (50) according to claim 1 or 2, characterized in that: When the light source control unit (52) receives a second signal (S2) sent from the air conditioning control unit (15) when the air conditioning device (10) stops operating or the indoor fan (22) stops operating, the light source control unit (52) disconnects the power supply of the light source (51).

4. The ultraviolet irradiation unit (50) according to claim 1, characterized in that: The first signal (S1) is transmitted when the operation of the air conditioner (10) is started and there is no abnormality in the indoor unit (20), or when the operation of the indoor fan (22) is started.

5. The ultraviolet irradiation unit (50) according to claim 1, characterized in that: The light source control unit (52) receives first information (J1) related to the indoor temperature from the air conditioning control unit (15), and the light source control unit (52) turns on the power of the light source (51) based on the first information (J1).

6. An air conditioning device (10), characterized in that: include: An indoor unit (20) comprising: a housing (21) having an inlet (25) for sucking indoor air; an indoor fan (22) housed in the housing (21); and a collecting member (24) housed in the housing (21); an air conditioning control unit (15) for controlling the operation of the indoor unit (20); and An ultraviolet irradiation unit (50) comprises: a light source (51) for irradiating ultraviolet rays (UV) to the collection member (24); and a light source control unit (52) for communicating with the air conditioning control unit (15) and controlling the operation of the light source (51). When the light source control unit (52) receives a first signal (S1) sent from the air conditioning control unit (15) to permit the operation of the ultraviolet irradiation unit (50), the light source control unit (52) turns on the power of the light source (51). If the first signal (S1) is received during the period from when the power of the light source (51) is turned off to when the prescribed period (X2) has passed, the light source (51) is not turned on.

7. The air conditioning device (10) according to claim 6, characterized in that: When the operation of the air conditioner (10) is started and there is no abnormality in the indoor unit (20), or when the operation of the indoor fan (22) is started, The air conditioning control unit (15) sends the first signal (S1).

8. The air conditioning device (10) according to claim 6 or 7, characterized in that: After receiving the first signal (S1), the light source control unit (52) turns off the power supply of the light source (51) after a predetermined period (X1) has elapsed.

9. The air conditioning device (10) according to claim 6 or 7, characterized in that: When the air conditioner (10) stops operating or when the indoor fan (22) stops operating, the air conditioner control unit (15) sends a second signal (S2), When receiving the second signal (S2), the light source control unit (52) turns off the power supply of the light source (51).

10. The air conditioning device (10) according to claim 6 or 7, characterized in that: The air conditioning device further includes a notification unit (60), When the light source control unit (52) detects an abnormality in the light source (51), the light source control unit (52) sends a third signal (S3) to the air conditioning control unit (15). When receiving the third signal (S3), the air conditioning control unit (15) causes the notification unit (60) to make a notification.

11. The air conditioning device (10) according to claim 6 or 7, characterized in that: The light source control unit (52) receives first information (J1) related to the indoor temperature from the air conditioning control unit (15), The light source control unit (52) turns the power of the light source (51) on and off based on the first information (J1).

12. The air conditioning device (10) according to claim 6 or 7, characterized in that: The air conditioning control unit (15) adds first information (J1) related to the indoor temperature to the transmission conditions of the first signal (S1) and transmits the signal.

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