An air conditioner

Abstract

The application discloses an air conditioner, which comprises an indoor unit and a photocatalyst air purification device, the photocatalyst air purification device is arranged at an air outlet and / or an air return port of the indoor unit, and is used for sterilizing and disinfecting air; the photocatalyst air purification device comprises a photocatalyst filter screen, an LED lamp and a lampshade; ultraviolet light emitted by the LED lamp is irradiated on the photocatalyst filter screen; the lampshade is used for preventing the ultraviolet light from irradiating on positions other than the photocatalyst filter screen, so that damage of the ultraviolet light to other structural components or human bodies is avoided; meanwhile, the lampshade is helpful to gathering the ultraviolet light to irradiate on the photocatalyst filter screen, and the sterilization effect of the photocatalyst filter screen is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air purification technology, and in particular to an air conditioner with a photocatalyst air purification device. BACKGROUND

[0002] After the air conditioner is used for a period of time, a large amount of dust, dirt, mold, bacteria, viruses and mites will accumulate on the filter screen, evaporator and air supply system, and when the air conditioner is used again, these bacteria and mites will quickly spread into the indoor air, causing the air bacteria content to rise. Long-term living in such an environment, people are prone to dizziness, fatigue, cold and other "air conditioner disease" symptoms and the opportunity to infect various diseases, seriously affecting the health of consumers, and the dirt will also reduce the heating and cooling efficiency of the air conditioner, increase energy consumption and shorten the service life of the air conditioner.

[0003] With the continuous progress of LED technology, LEDs capable of emitting UVA (ultraviolet light with a wavelength of 320-420 nm) and UVC (ultraviolet light with a wavelength of 200-275 nm) have gradually been popularized in air purification devices. The air purification device is arranged at the air outlet or air return of the air conditioner, and the ultraviolet light emitted by the LED lamp irradiates the photocatalyst filter screen, and the air flows through the photocatalyst filter screen to achieve air sterilization, disinfection, odor purification and decomposition of harmful gases such as formaldehyde.

[0004] Since the air purification device is installed at the air outlet or air return of the air conditioner, the existing LED lamp is arranged in parallel above the photocatalyst filter screen, which on the one hand will affect the air outlet or air return volume of the air conditioner, reducing the cooling and heating efficiency of the air conditioner; on the other hand, it cannot completely and effectively irradiate the photocatalyst filter screen, reducing the air purification effect of the photocatalyst filter screen; in addition, while the ultraviolet light achieves the sterilization and disinfection effect, if the ultraviolet light irradiates other positions outside the photocatalyst filter screen, it will accelerate the structural aging of other components and cause radiation damage to the human body.

[0005] The above information disclosed in the background of the application is only used to increase the understanding of the background of the application, and therefore, it can include prior art known to those skilled in the art. SUMMARY

[0006] Therefore, the present application provides an air conditioner, wherein the air outlet and / or air return of the indoor unit is provided with a photocatalyst air purification device, and the ultraviolet light emitted by the LED lamp is prevented from irradiating other positions outside the photocatalyst filter screen by the lampshade, avoiding damage to other structural components or the human body caused by the ultraviolet light.

[0007] To achieve the above-mentioned application purposes, the present application adopts the following technical solutions:

[0008] The application discloses an air conditioner, which comprises an indoor unit with an air outlet and an air return, and a photocatalyst air purification device arranged at the air outlet and / or the air return for sterilizing and disinfecting air.

[0009] Further, the photocatalyst air purification device further comprises a frame arranged at the periphery of the photocatalyst filter screen, the frame being connected with the air outlet and / or the air return; a support arranged on the frame, the LED lamp being arranged on the support; and the lampshade being arranged on the support and being adjacent to the LED lamp.

[0010] Further, the lampshade has an arc-shaped cross section, and the lampshade is located on the side of the LED lamp away from the photocatalyst filter screen.

[0011] Further, the lampshade has a half-horn shape or a half-cylinder shape.

[0012] Further, the side of the lampshade facing the LED lamp is provided with a reflective coating.

[0013] Further, the angle between the LED lamp and the photocatalyst filter screen is adjustable, and the ultraviolet light emitted by the LED lamp can completely cover the photocatalyst filter screen.

[0014] Further, the support comprises a first support and a second support, the first support is rotationally connected with the second support, the first support is connected with the frame, and the second support is connected with the LED lamp and the lampshade.

[0015] Further, the first support comprises a first support part and a first support second part, the first support part is slidingly connected with the frame; the second support comprises a second support part and a second support second part, the second support part is connected with the LED lamp and the lampshade, and the second support second part is rotationally connected with the first support second part.

[0016] Further, the frame is provided with a sliding groove, the first support part is provided with a sliding rail, and the sliding rail is slidingly connected with the sliding groove.

[0017] Further, the LED lamp comprises a UVA lamp and a UVC lamp.

[0018] Compared with the prior art, the application has the following advantages and positive effects:

[0019] The lampshade is arranged close to the LED lamp, and prevents the ultraviolet light emitted by the LED lamp from irradiating other positions outside the photocatalyst filter screen, thereby avoiding damage to other structural components or human bodies caused by the ultraviolet light;

[0020] Meanwhile, the lampshade helps to concentrate the ultraviolet light on the photocatalyst filter screen, thereby improving the sterilization effect of the photocatalyst filter screen;

[0021] By adjusting the included angle between the LED lamp and the photocatalyst filter screen, the ultraviolet light emitted by the LED lamp can completely cover the photocatalyst filter screen, thereby improving the sterilization and disinfection effect on air;

[0022] The device has simple structure and is easy to adjust, and the air purification effect of the photocatalyst air purification device on air can be improved without increasing the size of the device.

[0023] Other features and advantages of the present application will become more apparent after reading the specific embodiments of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0025] Figure 1 Fig. 1 is a top view of the photocatalyst air purification device in the air conditioner according to Embodiment One of the present application;

[0026] Figure 2 Fig. 2 is a front view of the photocatalyst air purification device in the air conditioner according to Embodiment One of the present application;

[0027] Figure 3 Fig. 3 is a structure diagram of the LED lamp and the bracket in the photocatalyst air purification device in the air conditioner according to Embodiment One of the present application;

[0028] Figure 4 Fig. 4 is a structure diagram of the included angle between the LED lamp and the photocatalyst filter screen in the photocatalyst air purification device in the air conditioner according to Embodiment One of the present application;

[0029] Figure 5 Fig. 5 is a side view of the photocatalyst air purification device in the air conditioner according to Embodiment Two of the present application;

[0030] Figure 6 Fig. 6 is a front view of the photocatalyst air purification device in the air conditioner according to Embodiment Two of the present application;

[0031] Figure 7It is a structure schematic view of the LED lamp and the support after assembly in the photocatalyst air purification device in the second embodiment of the air conditioner of the present application.

[0032] Figure 8 It is a structure schematic view of the LED lamp and the support after assembly in the photocatalyst air purification device in the third embodiment of the air conditioner of the present application.

[0033] Figure 9 It is a structure schematic view of the photocatalyst air purification device in the fourth embodiment of the air conditioner of the present application.

[0034] In the figure, 100 is a frame, 110 is a sliding groove, 200 is a photocatalyst filter screen, 300 is a support, 310 is a first support, 311 is a first support part, 312 is a second support part, 320 is a second support, 321 is a first support part, 322 is a second support part, 330 is a sliding rail, 340 is a first bolt, 350 is a second bolt, 400 is an LED lamp, 500 is a lampshade, 510 is a reflective coating arranged on the inner side of the lampshade, and 700 is a connecting rib.

[0035] α is an included angle between the LED lamp and the photocatalyst filter screen, p1 is ultraviolet light directly irradiated onto the photocatalyst filter screen from the LED lamp, and p2 is ultraviolet light reflected onto the photocatalyst filter screen by the reflective coating. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0037] It should be noted that, in the description of the present application, the terms indicating the direction or position relationship such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the direction or position relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0038] The present application discloses an air conditioner, which comprises an indoor unit. The indoor unit has an air outlet and an air return. Indoor air flows into the indoor unit through the air return, exchanges heat with a heat exchange component arranged in the indoor unit, and then flows to the indoor environment through the air outlet to adjust the temperature of the indoor air.

[0039] The air conditioner further comprises a photocatalyst air purification device arranged at the air outlet and / or the air return port, which sterilizes and disinfects the air flowing through the air outlet and / or the air return port, thereby improving the indoor air quality.

[0040] The present application provides four embodiments of air conditioners, each of which is configured with a different photocatalyst air purification device, which will be described in detail below.

[0041] Figures 1 to 4 Fig. 1 shows a structural schematic diagram of the photocatalyst air purification device configured in the first embodiment of the air conditioner, Figures 5 to 7 Fig. 2 shows a structural schematic diagram of the photocatalyst air purification device configured in the second embodiment of the air conditioner, Figure 8 Fig. 3 shows a structural schematic diagram of the photocatalyst air purification device configured in the third embodiment of the air conditioner, Figure 9 Fig. 4 shows a structural schematic diagram of the photocatalyst air purification device configured in the fourth embodiment of the air conditioner.

[0042] Embodiment I

[0043] With reference to Figures 1 to 3 , wherein, Figure 2 The dashed line in represents the ultraviolet light p1.

[0044] The photocatalyst air purification device comprises a photocatalyst filter screen 200 and an LED lamp 400.

[0045] The photocatalyst filter screen 200 is used to sterilize and disinfect the air flowing therethrough.

[0046] The LED lamp 400 is used to emit ultraviolet light, and the angle between the LED lamp 400 and the photocatalyst filter screen 200 is adjustable, so that the ultraviolet light can completely cover the photocatalyst filter screen.

[0047] By adjusting the angle between the LED lamp 400 and the photocatalyst filter screen 200, the effective irradiation area of the ultraviolet light on the photocatalyst filter screen 200 is increased, thereby improving the sterilization and disinfection effect on the air.

[0048] Specifically, the outer periphery (i.e., the side) of the photocatalyst filter screen 200 is fixedly provided with a frame 100, which serves as a mounting carrier for the photocatalyst filter screen 200, so that the photocatalyst filter screen 200 can be fixed flat and reliably.

[0049] In the first embodiment, the photocatalyst filter screen 200 is rectangular in shape, and correspondingly, the frame 100 is also rectangular in shape.

[0050] The frame 100 is provided with a bracket 300, and the bracket 300 is provided with the LED lamp 400.

[0051] One of the purposes of the embodiment one is to make the ultraviolet light emitted by the LED lamp 400 completely cover the photocatalyst filter screen 200 by adjusting the included angle between the LED lamp 400 and the photocatalyst filter screen 200, increase the effective irradiation area of the ultraviolet light on the photocatalyst filter screen 200, and improve the sterilization and disinfection effect on the air.

[0052] Since the LED lamp 400 is arranged at the outer periphery of the photocatalyst filter screen 200 and has a certain included angle with the photocatalyst filter screen 200, the influence on the air volume at the air outlet or the air return port of the air conditioner can be reduced as much as possible while ensuring the ultraviolet light irradiation to the photocatalyst filter screen 200.

[0053] The device has simple structure and is easy to adjust, and the air purification effect of the photocatalyst air purification device on the air can be improved without increasing the size of the device.

[0054] The LED lamp 400 includes a UVA lamp and a UVC lamp, both of which are fixedly arranged on the bracket 300. The UVA lamp can emit UVA ultraviolet light, and the UVC lamp can emit UVC ultraviolet light.

[0055] The photocatalyst filter screen 200 can realize the sterilization and disinfection effect on the air under the irradiation and excitation of the UVA ultraviolet light, and the UVC ultraviolet light can directly act on viruses, bacteria and the like in the air to achieve the sterilization and disinfection effect.

[0056] By adjusting the included angle between the LED lamp 400 and the photocatalyst filter screen 200, that is, adjusting the included angle between the UVA ultraviolet light, the UVC ultraviolet light and the photocatalyst filter screen 200, the UVA ultraviolet light and the UVC ultraviolet light can completely cover the photocatalyst filter screen 200. In this way, the effective area of the photocatalyst filter screen 200 can be irradiated and excited by the UVA ultraviolet light, thereby improving the sterilization and disinfection effect; at the same time, the air flowing through the photocatalyst filter screen 200 can also be irradiated by the UVC ultraviolet light to achieve all-round sterilization and disinfection. Under the dual action of the UVA ultraviolet light and the UVC ultraviolet light, the air flowing through the photocatalyst filter screen 200 can be more thoroughly sterilized and disinfected.

[0057] The number of the UVA lamp and the UVC lamp can be flexibly set according to the area size of the photocatalyst filter screen 200, the sterilization requirement and the like, and the embodiment is not limited in particular.

[0058] Referring to Figure 3 The bracket 300 includes a first bracket 310 and a second bracket 320, the first bracket 310 is rotationally connected with the second bracket 320, the first bracket 310 is connected with the frame 100, and the second bracket 320 is connected with the LED lamp 400. The rotation between the first bracket 310 and the second bracket 320 can realize the adjustment of the irradiation angle of the ultraviolet light.

[0059] Further, the first support 310 comprises a first support part 311 and a first support part 312, and the first support part 311 and the first support part 312 are preferably integrally formed, and the first support part 311 is preferably in sliding connection with the frame 100.

[0060] By sliding the first support part 311 along the frame 100, the position of the LED lamp 400 can be adjusted.

[0061] According to the size of the photocatalyst filter screen 200, the positions of the LED lamps 400 on the frame 100 can be flexibly adjusted, so as to realize complete coverage of the photocatalyst filter screen 200 by the ultraviolet light.

[0062] The second support 320 comprises a second support part 321 and a second support part 322, and the second support part 321 and the second support part 322 are preferably integrally formed, the second support part 321 is fixedly connected with the LED lamp 400, and the second support part 322 is in rotational connection with the first support part 312.

[0063] The rotational connection between the second support part 322 and the first support part 312 preferably adopts a rotational connection mode of a bolt, and specifically, the second support part 322 and the first support part 312 are each provided with a bolt through hole (not shown), a first bolt 340 is threaded through the bolt through hole, and one end of the first bolt 340 is locked by a first nut (not shown).

[0064] When adjusting, the first nut is loosened first, so that the second support part 322 and the first support part 312 can rotate relative to the bolt column of the first bolt 340, and when the LED lamp 400 is adjusted to the right position, the first nut is tightened, so that the LED lamp 400 can be fixed at the specific position and is not easy to shake.

[0065] The sliding connection between the first support part 311 and the frame 100 preferably adopts a sliding connection mode of a slide rail, and specifically, each side of the rectangular frame 100 is provided with a slide groove 110 along the length direction thereof, and the bottom surface of the first support part 311 is provided with a slide rail 330, and the slide rail 330 is in sliding connection with the slide groove 110.

[0066] In other embodiments, the first support part 311 and the frame 100 can be fixedly connected by buckles, screws, etc., and a plurality of buckle fastening positions or screw fastening positions can be arranged on each side of the frame 100, and the first support part 311 can be fixedly installed on the specified buckle fastening position or screw fastening position, so as to adjust the position of the LED lamp 400.

[0067] Further, when the bracket 300 is moved to a suitable position on the frame 100, the first bracket part 311 is fixedly connected with the frame 100 through the second bolt 350, so that the bracket 300 is fixed on the frame 100 more reliably and is not easy to move.

[0068] In the embodiment one, the first bracket part 311 and the second bracket part 312 are preferably arranged perpendicularly to each other, and the second bracket part 321 and the second bracket part 322 are also preferably arranged perpendicularly to each other, and the LED lamp 400 is fixedly arranged at the end of the second bracket part 321, so that the included angle between the LED lamp 400 and the photocatalyst filter screen 200 can be adjusted theoretically between 0-180°.

[0069] In actual use, in order to enable the ultraviolet light to irradiate on the photocatalyst filter screen 200, the included angle between the LED lamp 400 and the photocatalyst filter screen 200 should be between 0-90°.

[0070] Figure 4 The figure is a structural schematic diagram of the included angle between the LED lamp 400 and the photocatalyst filter screen 200, the included angle between the LED lamp 400 and the photocatalyst filter screen 200 is marked as α, and the acute included angle between the second bracket part 322 and the first bracket part 312 is also α.

[0071] When adjusting, the size of the α angle is adjusted according to the area of the photocatalyst filter screen 200.

[0072] If the area of the photocatalyst filter screen 200 is small, the second bracket 320 is rotated towards the direction close to the photocatalyst filter screen 200, the LED lamp 400 is closer to the photocatalyst filter screen 200, the α angle is increased, so that the ultraviolet light can completely cover the photocatalyst filter screen 200 while also enhancing the light intensity, which is helpful to further improve the sterilization and disinfection effect.

[0073] If the area of the photocatalyst filter screen 200 is large, the second bracket 320 is rotated towards the direction away from the photocatalyst filter screen 200, the LED lamp 400 is away from the photocatalyst filter screen 200, the α angle is decreased, so that the ultraviolet light emitted by the plurality of LED lamps 400 can completely cover the photocatalyst filter screen 200, and the sterilization and disinfection effect is improved.

[0074] Embodiment two

[0075] Reference Figures 5 to 7 , wherein Figure 6 and Figure 7 the dashed line in represents the ultraviolet light p1.

[0076] On the basis of embodiment one, embodiment two is fixed with lampshade 500 on second support part 321, lampshade 500 is close to LED lamp 400, the role of lampshade 500 is to prevent ultraviolet light from shining on other positions outside photocatalyst filter screen 200, to avoid ultraviolet light from causing damage to other components or human body.

[0077] At the same time, lampshade 500 also plays a certain role of light collection for ultraviolet light, so that ultraviolet light can shine on photocatalyst filter screen 200 as much as possible, which helps to improve sterilization and disinfection effect.

[0078] Further, the cross-sectional shape of lampshade 500 is preferably arc-shaped, and lampshade 500 is located on the side of LED lamp 400 away from photocatalyst filter screen 200, that is, lampshade 500 is arranged above LED lamp 400.

[0079] Under the blocking effect of upper lampshade 500, most of the ultraviolet light emitted by LED lamp 400 can shine downward on photocatalyst filter screen 200, and part of the ultraviolet light shining on lampshade 500 is reflected to photocatalyst filter screen 200 again under the reflection effect of lampshade 500, which improves light intensity and helps to further improve sterilization and disinfection effect.

[0080] Further, the shape of lampshade 500 is preferably half-horn-shaped or half-cylindrical, and half-horn-shaped is selected in embodiment two, which realizes the shielding and light collection of ultraviolet light by using smaller lampshade area, and helps to reduce the influence of lampshade 500 on wind resistance.

[0081] Embodiment three

[0082] Reference Figure 8 Among them, the thinner dotted line represents the ultraviolet light p1 directly shining on photocatalyst filter screen 200, and the thicker dotted line represents the ultraviolet light p2 reflected to photocatalyst filter screen 200 through the reflective coating 510 on the lampshade.

[0083] On the basis of embodiment two, reflective coating 510 is arranged on the side of lampshade 500 facing LED lamp 400 in embodiment three, which helps to enhance the reflection effect of ultraviolet light shining on lampshade 500, enhance the illumination intensity of ultraviolet light on photocatalyst filter screen 200, and further improve sterilization and disinfection effect.

[0084] Embodiment four

[0085] Reference Figure 9 Among them, the thinner dotted line represents the ultraviolet light p1 directly shining on photocatalyst filter screen 200, and the thicker dotted line represents the ultraviolet light p2 reflected to photocatalyst filter screen 200 through the reflective coating on the top cover.

[0086] On the basis of the first embodiment or the second embodiment or the third embodiment, the top cover 600 is arranged above the photocatalyst filter screen 200 in the fourth embodiment, the top cover 600 can reflect the ultraviolet light for multiple times, and the same beam of ultraviolet light can irradiate the photocatalyst filter screen 200 for multiple times under the reflection of the top cover 600, thereby enhancing the irradiation of the ultraviolet light on the photocatalyst filter screen 200 and improving the sterilization and disinfection effect.

[0087] Meanwhile, the top cover 600 also plays a certain role in concentrating the ultraviolet light, which helps to enhance the irradiation of the ultraviolet light on the photocatalyst filter screen 200.

[0088] In addition, the top cover 600 can also avoid the ultraviolet light from irradiating other positions outside the photocatalyst filter screen, thereby preventing the ultraviolet light from damaging other components or human bodies.

[0089] Further, the side of the top cover 600 facing the photocatalyst filter screen 200 is provided with a reflective coating (not marked), which enhances the reflection of the ultraviolet light and improves the sterilization and disinfection effect.

[0090] Further, the top cover 600 has an arc-shaped cross section, and the side edges of the top cover 600 extend towards the photocatalyst filter screen 200, so that the top cover 600 is equivalent to a concave mirror arranged above the photocatalyst filter screen 200, thereby increasing the light-concentrating and reflecting effect and further improving the sterilization and disinfection effect.

[0091] Further, the top cover 600 is fixedly connected with the frame 100 through the connecting ribs 700, one end of the connecting rib 700 is fixedly connected with the frame 100, and the other end is fixedly connected with the top cover 600, the top cover 600 is arranged above the LED lamp 400, thereby avoiding the top cover 600 from affecting the ultraviolet light emitted from the LED lamp 400 from irradiating the photocatalyst filter screen 200.

[0092] In the fourth embodiment, the number of the connecting ribs 700 is preferably four, which are respectively arranged on the four corners of the frame 100, and the top cover 600 has a certain distance from the photocatalyst filter screen 200, so that the top cover 600 can reduce the influence on the wind resistance as much as possible while meeting the light-concentrating and reflecting effect.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An air conditioner comprising: an indoor unit having an air outlet and an air return; characterized in that it further comprises: a photocatalyst air purification device for sterilizing and disinfecting air, which is arranged at the air outlet and / or the air return; wherein the photocatalyst air purification device comprises: a photocatalyst filter screen for sterilizing and disinfecting air flowing therethrough; an LED lamp for emitting ultraviolet light, which ultraviolet light is irradiated on the photocatalyst filter screen; a lampshade for preventing the ultraviolet light from being irradiated to a position other than the photocatalyst filter screen; a frame arranged at the outer periphery of the photocatalyst filter screen, which frame is connected with the air outlet and / or the air return; a support arranged on the frame, on which support the LED lamp is arranged; the lampshade is arranged on the support and is in close proximity to the LED lamp; a top cover is arranged above the photocatalyst filter screen, which top cover can reflect the ultraviolet light multiple times, one side of the top cover towards the photocatalyst filter screen is provided with a light-reflecting coating, and the top cover is fixedly connected with the frame through connecting ribs; the cross-sectional shape of the top cover is arc-shaped, the side edges of the top cover extend towards the photocatalyst filter screen, the number of the connecting ribs is four, and each connecting rib is fixedly arranged on a corner of the frame, and the top cover has a certain distance from the photocatalyst filter screen.

2. The air conditioner according to claim 1, characterized in that: the cross-sectional shape of the lampshade is arc-shaped, and the lampshade is located on the side of the LED lamp away from the photocatalyst filter screen.

3. The air conditioner according to claim 2, characterized in that: the shape of the lampshade is half-horn-shaped or half-cylindrical.

4. The air conditioner according to any one of claims 1 to 3, characterized in that: one side of the lampshade towards the LED lamp is provided with a light-reflecting coating.

5. The air conditioner according to claim 4, characterized in that: the included angle between the LED lamp and the photocatalyst filter screen is adjustable, and the ultraviolet light emitted by the LED lamp can completely cover the photocatalyst filter screen.

6. The air conditioner according to claim 5, characterized in that: the support comprises a first support and a second support, the first support is rotationally connected with the second support, the first support is connected with the frame, and the second support is connected with the LED lamp and the lampshade.

7. The air conditioner according to claim 6, characterized in that: the first support comprises a first support part and a first support second part, and the first support part is slidingly connected with the frame; the second support comprises a second support part and a second support second part, the second support part is connected with the LED lamp and the lampshade, and the second support second part is rotationally connected with the first support second part.

8. The air conditioner according to claim 7, characterized in that: a sliding groove is arranged on the frame, a sliding rail is arranged on the first support part, and the sliding rail is slidingly connected with the sliding groove.

9. The air conditioner according to claim 4, characterized in that: the LED lamp comprises a UVA lamp and a UVC lamp.

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