Air supply device

Abstract

The purpose of the present disclosure is to simplify the mounting work of an ultraviolet irradiation unit. A blower unit (10) is provided with: a case (11) forming a housing; an internal air suction port (23) which is provided in the housing (11) and sucks internal air into the interior of the housing (11); an outside air suction port (24) which is provided in the housing (11) and sucks outside air into the interior of the housing (11); an air intake damper (29) that selectively closes the internal air suction port (23) or the external air suction port (24); a filter (31) which is provided inside the housing (11) and which captures suspended matter suspended in the air sucked into the interior of the housing (11); a first ultraviolet irradiation device (27) that irradiates ultraviolet rays to the filter (31); and a mounting part (26) fixed to the housing (11) and provided so as to cover the interior air suction port (23), the mounting part (26) to which the first ultraviolet irradiation device (27) is mounted, and the first ultraviolet irradiation device (27) is provided so as to overlap the interior air suction port (23) in a plan view of the interior air suction port (23).

Description

Technical Field

[0001] The present disclosure relates to an air supply device. Background Art

[0002] A vehicle air conditioner for adjusting the temperature of the air inside the vehicle is installed inside the dashboard of the vehicle. The vehicle air conditioner includes: an HVAC unit (Heating Ventilation and Air Conditioning Unit) that adjusts the temperature of the air outside the vehicle (hereinafter referred to as "external air") or the air inside the vehicle cabin (hereinafter referred to as "interior air") and blows it into the vehicle cabin; and a blower unit that supplies the external air or interior air to the HVAC unit.

[0003] The blower unit is sometimes provided with a device for inactivating microorganisms and viruses attached to particles suspended in the air by irradiating the circulating air with ultraviolet rays. However, when ultraviolet rays are irradiated to particles suspended in the air, the microorganisms and viruses may not be properly inactivated unless the air is circulated to repeatedly irradiate the ultraviolet rays.

[0004] In order to solve such a problem, a technique is known in which a filter is provided in a flow path through which air flows, particles are captured by the filter, and ultraviolet rays are irradiated to the filter to inactivate microorganisms and viruses (for example, Patent Document 1).

[0005] Patent document 1 describes a vehicle air conditioning device having a blower unit having an ultraviolet lamp disposed near a rotating shaft as a light emitting portion for emitting light of a wavelength that causes photoexcitation of a photocatalyst toward an intake valve, and irradiating ultraviolet rays from the ultraviolet lamp toward a filter.

[0006] Prior art literature

[0007] Patent Literature

[0008] Patent Document 1: Japanese Patent Application Publication No. 2004-291864 Summary of the invention

[0009] Problems to be solved by the invention

[0010] In the structure described in Patent Document 1, the ultraviolet lamp is arranged on the rotating shaft of the intake valve. The rotating shaft of the intake valve rotates when the internal air circulation passage and the external air introduction passage are selectively opened and closed by the intake valve. In this way, when a component (such as an ultraviolet lamp) that needs to be connected to a power source or the like through wiring is provided on the rotating body that rotates, the wiring process may be complicated. Therefore, the installation work may become complicated.

[0011] The present disclosure has been made in view of such circumstances, and an object of the present disclosure is to provide an air supply device capable of simplifying the installation work of an ultraviolet irradiation unit.

[0012] Solutions for solving problems

[0013] In order to solve the above problems, the air supply device of the present disclosure adopts the following solution.

[0014] An air supply device according to one embodiment of the present invention is an air supply device that supplies external air as air outside a vehicle or internal air as air inside a vehicle compartment to a temperature adjustment device, the temperature adjustment device adjusts the temperature of the external air or the internal air and blows it into the vehicle compartment, the air supply device comprising: a shell that forms an outer shell; an internal air intake port that is provided in the shell and sucks internal air into the interior of the shell; an external air intake port that is provided in the shell and sucks external air into the interior of the shell; an air intake damper that selectively closes the internal air intake port or the external air intake port; a capture portion that is provided in the interior of the shell and captures suspended matter suspended in the air sucked into the interior of the shell; a first ultraviolet irradiation portion that irradiates ultraviolet rays to the capture portion; and a mounting portion that is fixed to the shell and is configured to cover the internal air intake port, the mounting portion being provided for the first ultraviolet irradiation portion to be mounted, and the first ultraviolet irradiation portion being configured to overlap with the internal air intake port when the internal air intake port is viewed from above.

[0015] Effects of the Invention

[0016] According to the present disclosure, the installation work of the ultraviolet irradiation unit can be simplified. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a longitudinal sectional view showing the blower unit according to the embodiment of the present disclosure.

[0018] Figure 2 yes Figure 1 AA section view.

[0019] Figure 3 yes Figure 2 BB section view.

[0020] Figure 4 Yes means Figure 2 A cross-sectional view of a modified example of . DETAILED DESCRIPTION

[0021] Hereinafter, an embodiment of the air supply device (blower unit) disclosed in the present invention will be described with reference to the accompanying drawings. In the following description, the up-down direction is the Z-axis direction, one of the directions orthogonal to the Z-axis direction is the X-axis direction, and the direction orthogonal to the Z-axis direction and the X-axis direction is the Y-axis direction.

[0022] The air blowing device of this embodiment is applied to a vehicle air conditioning device provided in a space defined by a dashboard of a car, for example. In the following description, the air blowing device is referred to as a "blower unit."

[0023] The vehicle air conditioning device includes: a temperature adjustment device (HVAC unit (HeatingVentilation and AirConditioning Unit)) that adjusts the temperature of the air outside the vehicle (hereinafter referred to as "external air") or the air inside the vehicle cabin (hereinafter referred to as "interior air") and blows it into the vehicle cabin; and a blower unit 10 that supplies the external air or the interior air to the HVAC unit. The HVAC unit is not shown in the figure.

[0024] like Figure 1 and Figure 2 As shown, the blower unit 10 includes a housing 11 forming an outer shell. An air flow path for circulating external air or internal air is formed inside the housing 11. The housing 11 sucks internal air or external air into the interior from an internal air intake port 23 or an external air intake port 24 formed at an upper end, and sucks internal air or external air from a fan intake port 44 formed at a lower end.

[0025] like Figure 2 As shown, the shell 11 has: an inclined portion 20, which is arranged at the upper portion; a filter accommodating portion 30, which is connected to the lower end of the inclined portion 20 and accommodates a filter (capturing portion) 31 inside; and a fan accommodating portion 40, which is connected to the lower end of the filter accommodating portion 30 and accommodates a fan 41 inside.

[0026] The inclined portion 20 includes a plate-shaped internal air intake portion 21 extending obliquely downward from the center in the X-axis direction toward one side in the X-axis direction, and a plate-shaped external air intake portion 22 extending obliquely downward from the center in the X-axis direction toward the other side in the X-axis direction. The upper and inner ends of the internal air intake portion 21 and the external air intake portion 22 are connected to each other.

[0027] The interior air intake portion 21 is formed with an interior air intake port 23. The interior air intake port 23 connects the external space of the housing 11 with the internal space. An interior air intake duct (not shown) is connected to the interior air intake port 23, and the upstream end of the interior air intake duct communicates with the space in the vehicle cabin. The interior air sucked in from the interior air intake duct is sucked into the interior of the housing 11 through the interior air intake port 23.

[0028] The internal air intake port 23 is provided with a lattice portion (mounting portion) 26. The lattice portion 26 covers the internal air intake port 23 from the outside. The lattice portion 26 includes a plate-shaped member extending in the X-axis direction and a plate-shaped member extending in the Y-axis direction along the internal air intake port 23. The lattice portion 26 is fixed to the housing 11 (internal air intake portion 21).

[0029] A first ultraviolet irradiation device (first ultraviolet irradiation unit) 27 and a second ultraviolet irradiation device (second ultraviolet irradiation unit) 28 are mounted on the lattice portion 26. The first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 are arranged at positions overlapping the inside air intake port 23 in a plan view of the inside air intake port 23.

[0030] The first ultraviolet irradiation device 27 is provided above the second ultraviolet irradiation device 28. The first ultraviolet irradiation device 27 is provided above the center of the inclined portion 20 in the Z-axis direction. The second ultraviolet irradiation device 28 is provided below the center of the inclined portion 20 in the Z-axis direction.

[0031] The first ultraviolet irradiation device 27 is provided on the X-axis center (the center of the inclined portion 20) side of the second ultraviolet irradiation device 28. The first ultraviolet irradiation device 27 is provided on the other side ( Figure 2 The second ultraviolet irradiation device 28 is provided on one side of the center of the internal air suction part 21 in the X-axis direction ( Figure 2 on the left side of the paper).

[0032] The first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 irradiate ultraviolet rays. The first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 sterilize and inactivate viruses and microorganisms attached to particles or mist (Japanese: ミスト) suspended in the air circulating in the housing by irradiating ultraviolet rays, thereby purifying the air. In the present embodiment, the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 irradiate ultraviolet rays to the filter 31 described later (in detail, the second ultraviolet irradiation device 28 irradiates ultraviolet rays to the filter 31 via the reflector (reflection part) 29c). Therefore, the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 mainly sterilize and inactivate viruses and microorganisms attached to particles and mist captured by the filter 31.

[0033] The first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 can be any device as long as they are devices for irradiating ultraviolet rays. In the present embodiment, the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 can also be devices with a certain degree of directivity in the irradiation of ultraviolet rays, such as devices in which LEDs (light-emitting diodes) for irradiating ultraviolet rays are mounted on a substrate.

[0034] like Figure 2 As shown by arrow U1, the first ultraviolet irradiation device 27 irradiates ultraviolet rays toward the filter 31. Specifically, the first ultraviolet irradiation device 27 irradiates ultraviolet rays toward a predetermined area A (see FIG. 1 ) of the filter 31. Figure 3 ) irradiates ultraviolet rays. The specified area A is the area through which the mainstream of air in the housing 11 passes. Specifically, Figure 3 As indicated by the two-dot chain line, the predetermined region A includes a region overlapping with the bell-mouth-shaped fan suction port 44 when the filter 31 is viewed from above.

[0035] In addition, if Figure 2 As shown by arrow U2, the second ultraviolet irradiation device 28 irradiates ultraviolet rays toward a reflector 29c described later. A portion of the ultraviolet rays reflected by the reflector 29c is irradiated toward a predetermined area A of the filter 31 as shown by arrow U3.

[0036] It should be noted that in Figure 2 In the figure, the ultraviolet rays irradiated from the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 are indicated by one arrow, but in fact, the ultraviolet rays are irradiated with a diffusion of about 60 degrees in each direction with the direction indicated by the arrow as the center. In the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28, the farther away from the center of the ultraviolet irradiation (the direction indicated by the arrow), the less the ultraviolet rays are, but if it is about 30 degrees from the center, the ultraviolet rays are hardly reduced.

[0037] In this embodiment, the distance L from the center of the internal air intake port 23 to the center of the filter 31 is set to about 100 mm. Figure 3 ) is set to be greater than 200 mm and less than 250 mm. Therefore, when irradiating ultraviolet rays from the first ultraviolet irradiation device 27 toward the center of the filter 31, the above-mentioned specified area A can be included in the range of 30 degrees from the center. Therefore, ultraviolet rays can be more effectively irradiated to the specified area A that is easy to capture particles, etc.

[0038] The external air intake portion 22 is formed with an external air intake port 24. The external air intake port 24 connects the external space and the internal space of the housing 11. The external air intake port 24 is connected to an external air intake duct 25 for sucking in external air. The external air sucked in from the external air intake duct 25 is sucked into the interior of the housing 11 via the external air intake port 24.

[0039] In addition, an air intake damper 29 is provided inside the inclined portion 20. The air intake damper 29 is provided on the lower surface of the connection portion between the inside air intake portion 21 and the outside air intake portion 22.

[0040] The air intake damper 29 has a cylindrical rotating shaft portion 29a extending in the Y-axis direction and a plate-shaped closing portion 29b fixed at one end to the rotating shaft portion 29a. The rotating shaft portion 29a is fixed to the lower surface of the connecting portion between the internal air intake portion 21 and the external air intake portion 22 in a manner that allows it to rotate at a predetermined angle around a central axis extending in the Y-axis direction. The closing portion 29b is larger than the internal air intake port 23 and the external air intake port 24 and can close the internal air intake port 23 and the external air intake port 24.

[0041] In the air intake damper 29, when the rotating shaft portion 29a is rotated manually or by a driving force from a driving device, the closing portion 29b moves along with the rotation of the rotating shaft portion 29a. Specifically, the closing portion 29b moves between a position covering and closing the inside air intake port 23 from the inside and a position covering and closing the outside air intake port 24 from the inside. That is, the air intake damper 29 can switch between a state of closing the inside air intake port 23 and a state of closing the outside air intake port 24.

[0042] The reflector 29c is provided on one side of the closed portion 29b (the side facing the internal space of the housing 11 when the air intake damper 29 closes the external air intake port 24). The reflector 29c is formed of a material (e.g., aluminum) that can reflect ultraviolet rays. The reflector 29c is a flat plate-shaped member. The reflector 29c is mounted on one side of the closed portion 29b in a manner that covers substantially the entire area. The reflector 29c is provided to be opposite to the filter 31 when the air intake damper 29 closes the external air intake port 24.

[0043] like Figure 3 As shown in FIG. 1 , the filter housing 30 is a component that is in the shape of a rectangular frame when viewed from above. Figure 2 As shown, the upper end of the filter accommodation portion 30 is connected to the lower end of the inclined portion 20 , and the lower end of the filter accommodation portion 30 is connected to the upper end of the fan accommodation portion 40 .

[0044] like Figure 3 As shown, a filter 31 is housed over substantially the entire region in the X-axis direction and the Y-axis direction in the filter housing portion 30. The filter 31 is provided so as to cover substantially the entire region of the flow path cross section.

[0045] The filter 31 is arranged in the filter housing 30. The filter 31 is arranged on the downstream side of the first ultraviolet irradiation device 27. When the air (internal air or external air) circulating in the housing 11 passes through the filter 31, the filter 31 captures particles or mist suspended in the air. The filter 31 can be formed of a non-woven fabric or a material having photocatalyst properties. It should be noted that in the blower unit 10 of the present embodiment, viruses and the like are inactivated by irradiating ultraviolet rays to the filter 31. Therefore, even without using an expensive filter such as a photocatalyst filter, a cheap filter such as a non-woven fabric can fully purify the air. Therefore, a sufficient air purification effect can be obtained while reducing costs by using a cheap filter such as a non-woven fabric.

[0046] In addition, if Figure 1 and Figure 2 As shown, the filter 31 has a plurality of pleats. That is, in the filter 31, mountain-shaped portions and valley-shaped portions extending in the X-axis direction are alternately arranged in the Y-axis direction.

[0047] In this embodiment, if Figure 2 As shown, the first ultraviolet irradiation device 27 irradiates ultraviolet rays in the X-axis direction. In this way, by irradiating ultraviolet rays from the same direction as the extending direction of the mountain-shaped portion, ultraviolet rays can be less likely to be blocked by the mountain-shaped portion. Therefore, ultraviolet rays can also be appropriately irradiated to the valley-shaped portion.

[0048] The fan housing 40 is a circular component when viewed from above. Figure 1and Figure 2 As shown, a fan 41 is accommodated inside. The fan accommodating portion 40 has a fan suction port 44 formed on the bottom surface thereof. The fan suction port 44 connects the internal space of the housing 11 with the external space.

[0049] like Figure 3 As shown, the fan 41 has a plurality of blades 42 arranged at equal intervals along the edge of the fan inlet 44. When the fan 41 is driven, the plurality of blades 42 rotate, and the internal air or external air is sucked into the housing 11 through the internal air inlet 23 or the external air inlet 24.

[0050] The fan housing portion 40 is provided with a plate-shaped reinforcement member 43 so as to span the fan suction port 44. The two reinforcement members 43 are arranged in a cross shape in a plan view to prevent the filter from being sucked in.

[0051] In addition, the blower unit 10 includes a control unit (not shown). The control unit can switch the air intake damper 29 between a state of closing the internal air intake port 23 and a state of closing the external air intake port 24 by controlling the air intake damper 29. In addition, the control unit controls the start / stop of the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28.

[0052] The control unit has an interior air mode and an exterior air mode. The interior air mode is a mode in which the air in the vehicle cabin (interior air) is sucked in and the temperature of the sucked air is adjusted before it is discharged into the vehicle cabin. In addition, the exterior air mode is a mode in which the air outside the vehicle (exterior air) is sucked in and the temperature of the sucked air is adjusted before it is discharged into the vehicle cabin.

[0053] The control unit controls the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 in such a manner that the irradiation of ultraviolet rays is stopped in the state where the air intake damper 29 closes the internal air intake port 23 in the external air mode. In addition, the control unit controls the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 in such a manner that the ultraviolet rays are irradiated in the state where the air intake damper 29 closes the external air intake port 24 in the internal air mode.

[0054] The controller (Controller) includes, for example, a CPU (Central Processing Unit), a main memory, a secondary storage, etc. Furthermore, the controller may include a communication unit for transmitting and receiving information with other devices.

[0055] The main storage device is composed of a writable memory such as a cache memory or a RAM (Random Access Memory), and is used as a work area for reading execution programs of the CPU and writing processing data by the execution programs.

[0056] The auxiliary storage device is a non-transitory computer readable storage medium, such as a magnetic disk, an optical magnetic disk, a CD-ROM, a DVD-ROM, a semiconductor memory, etc.

[0057] As an example, a series of processes for realizing various functions are stored in the auxiliary storage device in the form of a program, and the CPU reads the program to the main storage device, performs information processing and calculation processing, thereby realizing various functions. It should be noted that the program can also be applied in the form of being pre-installed in the auxiliary storage device, provided in the state of being stored in a computer-readable storage medium, and transmitted via a wired or wireless communication means. Computer-readable storage media are magnetic disks, optical magnetic disks, CD-ROMs, DVD-ROMs, semiconductor memories, etc.

[0058] Next, use Figure 2 The flow of air in the air conditioner is described in detail. Figure 2 The figure shows a state where the intake damper 29 closes the outside air intake port 24 and opens the inside air intake port 23 (that is, a state in the inside air mode).

[0059] [Inside air mode]

[0060] First, the flow of air in the inside air mode and the like will be described.

[0061] In the inside air mode, the control unit controls the intake damper 29 so that the closing portion 29b closes the outside air intake port 24. As a result, the inside air intake port 23 is opened, and the inside air (air in the vehicle cabin) is sucked into the housing 11 through the inside air intake port 23.

[0062] The internal air sucked into the housing 11 flows from the upper side to the lower side in the housing 11. At this time, the internal air passes through the filter 31. At this time, the mainstream of the internal air flows in a path with less pressure loss, and thus passes through a predetermined area A in the filter 31. When passing through the filter 31, particles suspended in the internal air are captured by the filter 31. The predetermined area A of the filter 31 captures more particles than other areas because more internal air passes through it.

[0063] The cleaned interior air passing through the filter 31 is discharged from the fan inlet 44 to the outside of the housing 11, supplied to the HVAC unit via a duct (not shown) and the like, and the temperature of the interior air is adjusted by the HVAC unit.

[0064] In the indoor air mode, the control unit irradiates ultraviolet rays from the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28. The first ultraviolet irradiation device 27 irradiates ultraviolet rays toward a predetermined area A of the filter 31 (see Figure 2 Thus, viruses and the like attached to particles and the like captured by the filter 31 (particularly the predetermined region A) are inactivated.

[0065] In addition, if Figure 2 As shown by the arrow U2, the second ultraviolet irradiation device 28 irradiates ultraviolet rays toward the reflector 29c. As shown by the arrow U3, a part of the ultraviolet rays reflected by the reflector 29c is irradiated toward the predetermined area A of the filter 31. Thus, viruses and the like attached to particles and the like captured by the filter 31 (particularly the predetermined area A) are inactivated.

[0066] [Outside air mode]

[0067] First, the flow of air in the outside air mode and the like will be described.

[0068] In the inside air mode, the control unit controls the intake damper 29 so that the closing portion 29b closes the inside air intake port 23. As a result, the outside air intake port 24 is opened, and the outside air (air outside the vehicle) is sucked into the housing 11 through the outside air intake port 24.

[0069] The flow of the outside air sucked into the casing 11 is the same as the flow of the inside air in the casing 11 , and thus a detailed description thereof will be omitted.

[0070] The ultraviolet irradiation portion is arranged to overlap with the interior air intake port 23 when looking down at the interior air intake port 23. Therefore, in the outside air mode in which the air intake damper 29 closes the interior air intake port 23, even if ultraviolet rays are irradiated from the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28, the ultraviolet rays are blocked by the closed portion 29b of the air intake damper 29 and do not reach the filter 31. In addition, the outside air mode can ventilate the interior of the vehicle, so the irradiation of ultraviolet rays is not required. Therefore, in the outside air mode, the control unit does not irradiate ultraviolet rays from the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28.

[0071] According to this embodiment, the following effects are achieved.

[0072] In this embodiment, the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 irradiate ultraviolet rays toward the filter 31. Thus, microorganisms, viruses, and the like attached to the suspended matter captured by the filter 31 can be inactivated.

[0073] In addition, in the present embodiment, the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 are provided in the covering portion which is a stationary object fixed to the housing 11. Thus, compared with the case where the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 are provided in a moving body such as a rotating body, when the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 are connected to other devices (such as a power supply) through wiring, the processing of wiring and the like can be simplified. Therefore, the installation work of the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 can be simplified.

[0074] When the inside air is sucked in by the blower unit 10 and the temperature-adjusted inside air is blown out into the vehicle cabin (ie, when the inside air is circulated), the concentration of viruses and the like becomes high due to the small volume inside the vehicle cabin, and the air is easily contaminated.

[0075] In this embodiment, the control unit controls the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 to irradiate ultraviolet rays in a state where the air intake damper 29 opens the interior air intake port 23. Thus, when the interior air that is easily contaminated is circulated, viruses and the like attached to the suspended matter captured by the filter 31 can be inactivated. Therefore, the air blown into the vehicle compartment can be purified.

[0076] In addition, in the present embodiment, the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 are arranged to overlap with the inner air intake port 23 when looking down at the inner air intake port 23. Therefore, in a state where the air intake damper 29 closes the inner air intake port 23, even if ultraviolet rays are irradiated, the ultraviolet rays are blocked by the air intake damper 29 and do not reach the filter 31. In the present embodiment, the control unit stops the irradiation of ultraviolet rays in a state where the air intake damper 29 closes the inner air intake port 23, so that the irradiation of useless ultraviolet rays can be suppressed. Therefore, energy saving can be achieved, and energy efficiency can be improved.

[0077] In the present embodiment, the first ultraviolet irradiation device 27 is provided in the lattice portion 26 provided in a manner covering the internal air intake port 23. Thus, the ultraviolet rays irradiated from the first ultraviolet irradiation device 27 are irradiated strongly to the area on the internal air intake port 23 side of the filter 31 which is close to the first ultraviolet irradiation device 27. On the other hand, the ultraviolet rays irradiated from the first ultraviolet irradiation device 27 are irradiated weakly to the area on the external air intake port 24 side of the filter 31 which is relatively far away.

[0078] On the other hand, in the present embodiment, the reflector 29c is arranged to be opposed to the filter 31 in a state where the air intake damper 29 closes the external air intake port 24. Thus, the reflector 29c can reflect the ultraviolet rays irradiated from the second ultraviolet irradiation device 28 toward the filter 31. The ultraviolet rays reflected by the reflector 29c are strongly irradiated to the area of ​​the filter 31 on the side of the external air intake port 24 which is close to the reflector 29c. On the other hand, the ultraviolet rays reflected by the reflector 29c are weakly irradiated to the area of ​​the filter 31 on the side of the internal air intake port 23 which is far from the reflector 29c.

[0079] Thus, the ultraviolet rays from the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 are strongly irradiated to the area on the inner air inlet 23 side of the filter 31, but the ultraviolet rays from the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 reflected by the reflective plate 29c are weakly irradiated to the area on the inner air inlet 23 side of the filter 31. On the other hand, the ultraviolet rays from the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 are weakly irradiated to the area on the outer air inlet 24 side of the filter 31, but the ultraviolet rays from the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 reflected by the reflective plate 29c are strongly irradiated to the area on the outer air inlet 24 side of the filter 31. Therefore, the unevenness of the intensity of the ultraviolet rays irradiated to the filter 31 can be reduced.

[0080] In addition, in the present embodiment, the first ultraviolet irradiation device 27 disposed at the top irradiates ultraviolet rays to the filter 31. The first ultraviolet irradiation device 27 is disposed at the top (that is, disposed away from the filter 31). Therefore, the ultraviolet rays irradiated from the first ultraviolet irradiation device 27 are easily diffused to the filter 31. Therefore, for example, compared with the structure in which the ultraviolet rays are irradiated to the filter 31 by the second ultraviolet irradiation device 28, the ultraviolet rays can be irradiated to a wide range of the filter 31.

[0081] [Modifications]

[0082] Next, use Figure 4 Modifications of the above-described embodiment will be described.

[0083] In this modification, the shape of the closing portion of the air intake damper and the shape of the reflection plate are different from those of the above embodiment. Other points are the same as those of the above embodiment, so the same reference numerals are attached to the same components and their detailed description is omitted.

[0084] The center area of ​​the closed portion 59b of the intake damper 59 of this modified example is recessed. Specifically, a spherically recessed recess 59d is formed on one side (the side facing the internal space of the housing 11 when the intake damper 29 closes the external air intake port 24) of the closed portion 59b.

[0085] It should be noted that the area outside the central area of ​​the sealing portion 59b (outside the recessed portion 59d) is set to be flat. In this way, when the internal air intake port 23 and the external air intake port 24 are sealed, the surface contact with the edge of each opening can be made, so the internal air intake port 23 and the external air intake port 24 can be effectively sealed.

[0086] In addition, the reflector 59c of this modification is bent in a manner corresponding to the shape of the recess 59d. In detail, one side of the reflector 59c (the surface facing the internal space of the housing 11) is bent in a manner that is spherically concave. The reflector 59c is installed in the recess 59d in a manner that covers the entire area of ​​the recess 59d. The reflector 59c is concave in a manner that, when reflecting the ultraviolet rays irradiated from the second ultraviolet irradiation device 28, the reflected ultraviolet rays are collected on the filter 31.

[0087] According to this modification, the following effects are achieved.

[0088] In this modification, the reflector 59c is recessed so that the reflected ultraviolet rays are collected on the filter 31. As a result, more ultraviolet rays can be irradiated to the filter 31, so viruses and the like attached to the suspended matter captured by the filter 31 can be more appropriately inactivated. Therefore, the air blown into the vehicle cabin can be purified.

[0089] It should be noted that the present disclosure is not limited to the above-described embodiments, and can be modified appropriately within the scope of the present disclosure.

[0090] For example, in the above embodiment, an example of providing the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 is described, but the present invention is not limited thereto. It is also possible to provide only one of the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28. In addition, it is also possible to provide a plurality of first ultraviolet irradiation devices 27, and in addition, it is also possible to provide a plurality of second ultraviolet irradiation devices 28.

[0091] In addition, in the above-mentioned embodiment, an example of automatically starting / stopping the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 by the control device is described, but in the case where the blower unit of the present invention is installed in an inexpensive vehicle such as a manual transmission specification, the first ultraviolet irradiation device 27 and the second ultraviolet irradiation device 28 can also be started / stopped by a limit switch.

[0092] The air blowing device described in the above-described embodiment can be understood, for example, as follows.

[0093] The air supply device of the first scheme of the present disclosure is an air supply device (10) for supplying external air as air outside a vehicle or internal air as air inside a vehicle compartment to a temperature adjustment device, the temperature adjustment device adjusts the temperature of the external air or the internal air and blows it into the vehicle compartment, the air supply device (10) comprising: a shell (11) forming an outer shell; an internal air intake port (23) provided in the shell for sucking internal air into the interior of the shell; an external air intake port (24) provided in the shell for sucking external air into the interior of the shell; An air intake damper (29) selectively closes the internal air intake port or the external air intake port; a capture portion (31) disposed inside the shell and capturing suspended matter suspended in the air sucked into the shell; a first ultraviolet irradiation portion (27) irradiating ultraviolet light to the capture portion; and a mounting portion (26) fixed to the shell and configured to cover the internal air intake port, the mounting portion being used for mounting the first ultraviolet irradiation portion, the first ultraviolet irradiation portion being configured to overlap the internal air intake port when the internal air intake port is viewed from above.

[0094] In the above configuration, the first ultraviolet irradiation unit irradiates the capture unit with ultraviolet rays, thereby inactivating microorganisms, viruses, etc. attached to the suspended matter captured by the capture unit.

[0095] In addition, in the above-mentioned configuration, the first ultraviolet irradiation unit is provided on the covering portion which is a stationary object fixed to the housing. Thus, compared with the case where the first ultraviolet irradiation unit is provided on a moving body such as a rotating body, when the first ultraviolet irradiation unit is connected to other devices (such as a power supply) through wiring, the processing of wiring etc. can be simplified. Therefore, the installation operation of the first ultraviolet irradiation unit can be simplified.

[0096] It should be noted that "configured to cover the internal air intake port" does not mean configured to cover the entire area of ​​the internal air intake port, but rather means that a component in a shape (e.g., a grid shape) that does not hinder the intake of internal air through the internal air intake port is provided near the internal air intake port in a manner overlapping with the internal air intake port.

[0097] In addition, with regard to the air supply device of the second scheme of the present disclosure, in the above-mentioned first scheme, there is a control unit, which controls the first ultraviolet irradiation unit in a manner that stops the irradiation of ultraviolet rays when the air intake damper closes the internal air intake port, and irradiates ultraviolet rays when the air intake damper closes the external air intake port.

[0098] When the internal air is sucked in by the air supply device and the temperature-adjusted internal air is blown out into the vehicle cabin (ie, when the internal air is circulated), the concentration of viruses and the like will become high due to the small volume of the vehicle cabin, and the air will be easily contaminated.

[0099] In the above configuration, the control unit controls the first ultraviolet irradiation unit to irradiate ultraviolet rays when the air intake door opens the internal air intake port. Thus, when the internal air that is easily polluted is circulated, viruses and the like attached to the suspended matter captured by the capture unit can be inactivated. Therefore, the air blown into the vehicle compartment can be purified.

[0100] Furthermore, in the above configuration, the first ultraviolet irradiation unit is arranged to overlap the inner air intake port when the inner air intake port is viewed from above. Therefore, in a state where the air intake damper closes the inner air intake port, even if ultraviolet rays are irradiated, the ultraviolet rays are blocked by the air intake damper and do not reach the capture unit. In the above configuration, the control unit stops irradiating ultraviolet rays in a state where the air intake damper closes the inner air intake port, thereby suppressing useless irradiation of ultraviolet rays. Therefore, energy saving can be achieved, and energy efficiency can be improved.

[0101] In addition, with regard to the air supply device of the third scheme of the present disclosure, in the above-mentioned first scheme or second scheme, it is provided with: a reflecting portion (29c) for reflecting ultraviolet rays; and a second ultraviolet irradiation portion (28) for irradiating ultraviolet rays to the reflecting portion, the reflecting portion being arranged on the surface of the intake damper facing the interior of the shell when the intake damper closes the external air intake port, and the reflecting portion being arranged to be opposite to the capturing portion when the intake damper closes the external air intake port.

[0102] In the above configuration, the first ultraviolet irradiation section is provided on the mounting section which is provided in a manner to cover the internal air inlet. Thus, the ultraviolet rays irradiated from the first ultraviolet irradiation section are irradiated more strongly to the area on the internal air inlet side of the capture section which is closer to the first ultraviolet irradiation section. On the other hand, the ultraviolet rays irradiated from the first ultraviolet irradiation section are irradiated more weakly to the area on the external air inlet side of the capture section which is farther away.

[0103] On the other hand, in the above configuration, the reflecting portion is arranged to be opposite to the capturing portion when the air intake damper closes the external air intake port. Thus, the reflecting portion can reflect the ultraviolet rays irradiated from the second ultraviolet irradiation portion toward the capturing portion. The ultraviolet rays reflected by the reflecting portion are strongly irradiated to the region of the capturing portion on the side of the external air intake port which is close to the reflecting portion. On the other hand, the ultraviolet rays reflected by the reflecting portion are weakly irradiated to the region of the capturing portion on the side of the internal air intake port which is far from the reflecting portion.

[0104] Thus, although the ultraviolet rays from the first ultraviolet irradiation section are strongly irradiated to the area on the inner air inlet side of the capture section, the ultraviolet rays from the second ultraviolet irradiation section reflected by the reflecting section are weakly irradiated to the area on the inner air inlet side of the capture section. On the other hand, although the ultraviolet rays from the first ultraviolet irradiation section are weakly irradiated to the area on the outer air inlet side of the capture section, the ultraviolet rays from the second ultraviolet irradiation section reflected by the reflecting section are strongly irradiated to the area on the outer air inlet side of the capture section. Therefore, the unevenness of the intensity of the ultraviolet rays irradiated to the capture section can be reduced.

[0105] Furthermore, in a blower device according to a fourth aspect of the present disclosure, in the third aspect, the reflecting portion is recessed so that ultraviolet rays reflected when the air intake door closes the outside air intake port are collected on the capturing portion.

[0106] In the above configuration, the reflecting part is recessed in such a way that the reflected ultraviolet rays are collected on the capturing part. As a result, more ultraviolet rays can be irradiated to the capturing part, so that viruses and the like attached to the suspended matter captured by the capturing part can be more appropriately inactivated. Therefore, the air blown into the vehicle compartment can be purified.

[0107] Description of Reference Numerals

[0108] 10: Blower unit;

[0109] 11: Shell;

[0110] 20: inclined portion;

[0111] 21: internal air intake;

[0112] 22: External air intake part;

[0113] 23: Internal air intake;

[0114] 24: External air intake;

[0115] 25: External air intake duct;

[0116] 26: grid part (installation part);

[0117] 27: a first ultraviolet irradiation device (a first ultraviolet irradiation unit);

[0118] 28: a second ultraviolet irradiation device (a second ultraviolet irradiation unit);

[0119] 29: Intake air door;

[0120] 29a: rotating shaft portion;

[0121] 29b: closure part;

[0122] 29c: reflector (reflecting part);

[0123] 30: filter receiving portion;

[0124] 31: filter (capture part);

[0125] 40: fan housing portion;

[0126] 41: fan;

[0127] 42: leaves;

[0128] 43: Strengthening components;

[0129] 44: Fan inlet;

[0130] 59: Intake air door;

[0131] 59b: closure part;

[0132] 59c: reflector;

[0133] 59d: concave part.

Claims

1. An air supply device that supplies outside air, which is air outside a vehicle, or inside air, which is air inside a vehicle compartment, to a temperature control device that controls the temperature of the outside air or the inside air and blows it into the vehicle compartment, the air supply device comprising: a shell, forming an outer shell; An internal air intake port is provided on the housing to suck internal air into the interior of the housing; An external air intake port is provided on the housing to absorb external air into the interior of the housing; an air intake damper, selectively closing the internal air intake port or the external air intake port; a capture unit, disposed inside the housing, for capturing suspended matter suspended in the air sucked into the housing; a first ultraviolet irradiation unit that irradiates ultraviolet rays toward the capture unit; and The mounting portion is fixed to the housing and is configured to cover the internal air intake port. The mounting portion is used to mount the first ultraviolet irradiation portion. The first ultraviolet irradiation section is provided so as to overlap the inside air intake port when the inside air intake port is viewed in plan.

2. The air supply device according to claim 1, comprising: The control unit controls the first ultraviolet irradiation unit so as to stop irradiation of ultraviolet rays when the air intake damper closes the inside air intake port, and irradiate ultraviolet rays when the air intake damper closes the outside air intake port.

3. The air supply device according to claim 1 or 2, comprising: a reflective portion that reflects ultraviolet rays; and A second ultraviolet irradiation unit irradiates ultraviolet rays toward the reflecting portion, The reflecting portion is provided on a surface of the air intake damper facing the inside of the housing when the air intake damper closes the outside air intake port, and is provided to face the capturing portion when the air intake damper closes the outside air intake port.

4. The air supply device according to claim 3, wherein: The reflecting portion is recessed so that ultraviolet rays reflected in a state where the air intake damper closes the external air intake port are collected on the capturing portion.

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