TWM644344U - Ultraviolet disinfection device and dehumidifier using the same - Google Patents

Abstract

The present disclosure provides an ultraviolet disinfection device and a dehumidifier using the same. The ultraviolet disinfection device comprises a carrying piece, a circuit board, a plurality of ultraviolet light-emitting units, a cover and a transparent protective board. The circuit board is disposed on the carrying piece and comprises a mounting surface opposite to the carrying piece. The plurality of ultraviolet light-emitting units are disposed on the mounting surface of the circuit board and electronically connected to the circuit board, and are any of a UVA, UVB or UVC light-emitting diode or any combination thereof. The cover is disposed on the carrying piece and the circuit board for protecting the circuit board. The transparent protective board is disposed on a light outlet of the cover, light beams emitted by the ultraviolet light-emitting units being able to penetrate the transparent protective board and transmit to the outside. The present disclosure also provides a dehumidifier comprising the ultraviolet disinfection device.

Description

Ultraviolet sterilizing device and dehumidifier using it

This creation is about an ultraviolet sterilizing device, more specifically, an ultraviolet sterilizing device suitable for a dehumidifier.

In an environment with heavy humidity, it is easy to cause respiratory damage to the human body, or make items moldy. Therefore, in order to reduce the humidity in the environment, people mostly use dehumidifiers to remove excess moisture in the air to reduce the humidity, so that the environment can be maintained in a more comfortable state.

The dehumidifiers currently on the market mainly use compressors, refrigeration chips or dehumidifier wheels to remove excess moisture in the indoor air, and use technologies such as negative ion generators to remove suspended particles in the air. Disinfection and sterilization of pathogens such as mold, bacteria and viruses. The surface of the fan and other components inside the dehumidifier may also remain or even breed pathogens. If there is no proper cleaning method, there may even be a risk of secondary pollution when the air is discharged. However, buying additional germicidal lamps to kill bacteria and viruses in the air is not only uneconomical for people, but also takes up a lot of living space, which is really inconvenient.

In view of the above technical problems, this invention provides an ultraviolet sterilizing device and a dehumidifier using it. Through a specific structural design, it can be installed inside the dehumidifier for sterilization and disinfection, which helps to improve indoor air quality.

One embodiment of the present invention provides an ultraviolet sterilizing device, comprising: a bearing seat; a circuit substrate disposed on the bearing seat, the circuit substrate includes a mounting surface, and the mounting surface is disposed away from the bearing seat; an ultraviolet light emitting unit, disposed on the mounting surface of the circuit substrate, and electrically connected to the circuit substrate, the ultraviolet light emitting units include any one of UVA, UVB and UVC light emitting diodes or any combination thereof; A cover, arranged on the bearing seat and the circuit substrate, to protect the circuit substrate, the cover includes a light outlet; and a light-transmitting protection plate, arranged on the light outlet of the cover, the light emitting The light beam emitted by the unit can pass through the light-transmitting protective plate and be emitted to the outside.

In one embodiment, the ultraviolet light emitting units include at least one UVA light emitting diode and at least one UVC light emitting diode.

In one embodiment, the ultraviolet light emitting units include a plurality of UVA light-emitting diodes and a plurality of UVC light-emitting diodes, and the UVA light-emitting diodes and the UVC light-emitting diode systems are arranged alternately.

In one embodiment, the ultraviolet sterilizing device further includes a soft plug for closing an opening at a joint end of the bearing seat and the cover.

In one embodiment, the ultraviolet sterilizing device further comprises: two soft plugs, a soft plug is used to close the joint end opening of the bearing seat and the cover, and the other soft plug is used to close the bearing seat and the cover The other joint end of the body is open.

In one embodiment, the light-transmitting protective plate is glass.

In one embodiment, the ultraviolet light emitting units are a plurality of light emitting diode chips.

In one embodiment, the ultraviolet light emitting units are a plurality of light emitting diode packaging structures, and each light emitting diode packaging structure includes a substrate, a light emitting diode chip and a packaging material layer.

Another embodiment of the present creation provides a dehumidifier, including: a heat exchange assembly, including an air inlet surface, an air outlet surface opposite to the air inlet surface, and an air outlet surface located on the same side of the air inlet surface and the air outlet surface. a heat exchanging end; an air supply assembly comprising a front portion of an air duct disposed on one side of the air outlet surface of the heat exchange assembly and comprising a protruding portion extending relative to the air outlet surface protruding from the heat exchanging end; and an ultraviolet sterilizing device, arranged on one surface of the front of the air duct facing the air outlet surface, and at least partly opposite to the heat exchanging end; wherein, the ultraviolet sterilizing device It is used to provide an ultraviolet light irradiation area, and the ultraviolet light irradiation area at least covers the heat exchange end.

In one embodiment, the heat exchange end portion includes: a first step face facing the ultraviolet light sterilization device; and a second step face facing the ultraviolet light sterilization device; wherein, the first step face and the second step face The second-stage surfaces are arranged side by side, and the first-stage surface retreats a long space away from the ultraviolet sterilizing device relative to the second-stage surface.

In one embodiment, the heat exchange assembly includes: an evaporator, including the air inlet surface and the first step surface; and a condenser, arranged side by side with the evaporator, and including the air outlet surface and the second step surface.

In one embodiment, the front part of the air duct further includes a protruding part, and the protruding part extends from the surface of the front part of the air duct facing the air outlet surface to the part between the ultraviolet sterilizing device and the heat exchange end. Between, an opening is formed on the protruding part, and the ultraviolet sterilizing device irradiates light toward the heat exchanging end through the opening.

In one embodiment, the bearing seat of the ultraviolet light sterilization device includes at least one screw joint portion for engaging with the front portion of the air duct through a screw.

In one embodiment, the carrying seat of the ultraviolet light sterilization device includes at least one mounting buckle for fastening with the front part of the air duct.

In one embodiment, the heat exchange assembly includes a plurality of fins arranged side by side, and ends of the fins respectively extend to the heat exchange end.

In one embodiment, the air supply assembly further includes a centrifugal fan, and the front part of the air duct is disposed between the heat exchange assembly and the centrifugal fan.

In one embodiment, the dehumidifier further includes: a top cover, the top cover includes an air outlet, the air outlet is arranged above the centrifugal fan; and a chassis, the chassis and the top cover form accommodating the heat exchange Assembly, the ultraviolet light sterilization device and the space of the air supply assembly.

In one embodiment, the dehumidifier further includes a control circuit board, and the control circuit board is electrically connected to the heat exchange assembly, the ultraviolet sterilizing device and the air supply assembly.

At least one main technical means of this creation is that the ultraviolet sterilizing device provided by the embodiment of this creation is designed through the structural design of the bearing base, circuit board, a plurality of ultraviolet light emitting units, the cover body and the light-transmitting protection plate, and is arranged on the On the surface of one of the front parts of the air duct in the dehumidifier, a sterilization effect is achieved on the inside of the dehumidifier.

The purpose of this creation is to provide a dehumidifier equipped with non-woven filter screen/activated carbon filter screen/high-efficiency filter screen (HEPA), dehumidification equipment and ultraviolet sterilization device, which can not only pass through the non-woven fabric filter screen/activated carbon filter screen/high-efficiency filter screen (HEPA) purifies the air, dehumidifies the air through the dehumidification equipment, and kills the bacteria in the air through the ultraviolet sterilizing device to achieve the multiple effects of air purification, dehumidification and sterilization. Therefore, the dehumidifier of this creation is not only applicable to homes, restaurants, etc., but also to hospital wards, even negative pressure isolation wards.

Therefore, in view of the above, the creator of this creation has painstakingly researched, pondered and designed a dehumidifier for many years, in order to improve the lack of conventional technology, and then enhance the implementation and utilization in the industry.

1: Rear panel

2: Front panel

3: Chassis

4: Chassis wheel

5: Power cord

6: Top cover

7: Air intake grille

8: Filter

9: Health filter

10: Heat exchange assembly

101: Air intake surface

102: vent face

103:Heat exchange end

103a: First-order surface

103b: Second-order surface

104: fins

11: Evaporator

12: Condenser

13: return air pipe

14: exhaust pipe

15: Capillary

16: Compressor

20: Air supply assembly

21: Front of air duct

211: overhang

22: centrifugal fan

23: The rear of the air duct

24: Centrifugal fan motor

30: Ultraviolet light sterilization device

31: Bearing seat

311: screw joint

312: Mounting Buckle

32: Circuit board

321: Mounting surface

33: UV light emitting unit

331:UVA light-emitting diode

332:UVC light-emitting diode

34: cover body

341: light outlet

35: Light-transmitting protective board

36, 37: Bracket

38: soft plug

41: Control circuit board

42: Circuit board support

43: Electric control box

44: Electric control box cover

45: Negative ion generator

46: Humidity sensor

47:WiFi module

50:Water collection assembly

51: water tray bracket

52: water tank

53:Water tank handle

54:Water tank handle seat

55: water tank cover

56: water tank seal

61: Display operation panel

62: Display box cover

63: Display operation mask

64: Wind deflector

65: handle

66: gear

67: Anti-electric shaft

68: Swing wind motor

69:Swing wind motor fixed cover

Figure 1 is an exploded schematic diagram of the dehumidifier provided by the company.

Fig. 2 is a schematic front view of the setting method of the ultraviolet sterilizing device according to the present invention.

FIG. 3 is a schematic cross-sectional view along line AA' in FIG. 2 .

Figure 4 is an exploded schematic view of the ultraviolet light sterilization device provided by this creation.

The principle of ultraviolet light (ultraviolet, UV) sterilization is to destroy genetic material such as DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in pathogens such as mold, bacteria and viruses, causing them to die immediately or lose their ability to reproduce. Compared with traditional chemical methods, the use of ultraviolet light does not need to replace drugs or use combination drugs, and is not affected by chemical equilibrium conditions such as temperature, concentration, and activity. Moreover, the process is non-toxic, non-residual, and odor-free, so it is especially suitable for air, Sterilization and disinfection of water and object surfaces. Among the options of ultraviolet light sources, the light output intensity per unit area of light-emitting diodes (LEDs) is more than 1000 times higher than that of mercury lamps, and at the same time, the power consumption is only 1/10, which has great application potential.

The implementation of the "ultraviolet sterilizing device" disclosed in this creation is described below through specific specific examples. Those with ordinary knowledge in the technical field of this creation can understand the advantages and effects of this creation from the content disclosed in this specification. This creation can be implemented or applied through other different specific embodiments, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of this creation. The following embodiments will further describe the relevant technical content of this creation in detail, but the disclosed content is not intended to limit the technical scope of this creation.

First, please refer to Fig. 1, which is an exploded schematic diagram of an embodiment of the dehumidifier provided by the invention. As shown in FIG. 1 , the dehumidifier of this embodiment is composed of a rear panel 1 , a front panel 2 , a chassis 3 and a top cover 6 to form a space for accommodating other components. Chassis wheels 4 are arranged on the lower surface of the chassis 3 to facilitate the user to move the dehumidifier, and a power cord 5 is arranged on one side thereof to receive the power needed for the dehumidifier to work from an external power source. Air intake grille 7 is arranged on the outside of rear panel 1 to hold filter screen 8 and health filter screen 9 which may include non-woven filter screen/activated carbon filter screen/high efficiency filter screen (HEPA) to preliminarily filter out impurities such as dust in the air. The basic dehumidification function of the dehumidifier is realized by the heat exchange assembly 10 , the air supply assembly 20 and the water collection assembly 50 . The detailed components of the dehumidifier are described below.

The heat exchange assembly 10 includes an evaporator 11 and a condenser arranged side by side with the evaporator 11 12. Air return pipe 13, exhaust pipe 14, capillary pipe 15 and compressor 16. The evaporator 11 contains a low-temperature and low-pressure liquid refrigerant, which is used to cool the air and condense the moisture in it. It absorbs heat and transforms into a low-temperature and low-pressure gaseous refrigerant. gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant enters the condenser 12 through the exhaust pipe 14 to dissipate heat and becomes a low-temperature and high-pressure gaseous refrigerant, and then throttles through the capillary 15 to change into a low-temperature and low-pressure liquid refrigerant and then enters the evaporator 11, thus forming a heat exchange cycle again and again. The air supply assembly 20 includes an air duct front portion 21, a centrifugal fan 22, an air duct rear portion 23 and a centrifugal fan motor 24, wherein the centrifugal fan 22 is arranged between the air duct front portion 21 and the air duct rear portion 23 and is driven by the centrifugal fan motor 24, It is used to draw the air into the dehumidifier from the air intake grille 7, remove the water through the evaporator 11, carry the heat dissipated by the condenser 12, pass through the front part 21 of the air duct, and then be blocked by the rear part 23 of the air duct to be discharged upward.

The ultraviolet sterilizing device 30 is arranged on a surface of the front part of the air duct 21 facing the heat exchange assembly 10 , and its detailed arrangement will be described later with reference to FIG. 2 and FIG. 3 . The control circuit board 41 and the circuit board bracket 42 are disposed inside the electric control box 43 and the electric control box cover 44 . The control circuit board 41 is electrically connected to the heat exchange assembly 10, the air supply assembly 20, the ultraviolet light sterilizing device 30, the negative ion generator 45, the humidity sensor 46, and the WiFi module 47, etc., to control various components of the dehumidifier. function and interaction with users.

The water collection assembly 50 includes a water tray bracket 51, a water tank 52, a water tank handle 53, a water tank handle seat 54, a water tank cover 55 and a water tank seal 56, which are used to collect the water condensed on the surface of the evaporator 11 and take it out by the user . The lower surface of the top cover 6 adjacent to the rear panel 1 is provided with a display operation panel 61 and a display box cover 62, and the upper surface is provided with a display operation mask 63 for the user to read the status information of the dehumidifier and operate it. The part of the top cover 6 adjacent to the front panel 2 includes an air outlet arranged above the centrifugal fan 22, a wind deflector 64, and a handle 65 arranged between the display operation film 63 and the wind deflector 64, and a gear 66 and an anti-electricity device are arranged below. Shaft 67, swing wind motor 68 and swing wind motor fixed cover 69, so that wind deflector 64 can automatically adjust the air outlet direction when the dehumidifier is turned on, and automatically cover the air outlet when the dehumidifier is turned off.

Next, please refer to Figure 2 and Figure 3. Fig. 2 is the ultraviolet sterilizing device according to the invention Figure 3 is a schematic cross-sectional view along the line AA' in Figure 2.

As shown in FIG. 2 and FIG. 3 , the heat exchange assembly 10 includes an air inlet surface 101 , an air outlet surface 102 opposite to the air inlet surface 101 , and a heat exchange end 103 located on the same side of the air inlet surface 101 and the air outlet surface 102 . The front part of the air duct 21 is arranged on one side of the air outlet surface 102 of the heat exchange assembly 10, and the ultraviolet sterilizing device 30 is arranged on the surface of the front part of the air duct 21 facing the air outlet surface 102, and is at least partly connected with the heat exchange end. 103 relative. The ultraviolet light sterilizing device 30 is used to provide an ultraviolet light irradiation area, and the ultraviolet light irradiation area at least covers the heat exchange end portion 103 . In this embodiment, the heat exchange end portion 103 includes a first stepped surface 103a and a second stepped surface 103b facing the ultraviolet light sterilization device 30, wherein the first stepped surface 103a and the second stepped surface 103b are arranged side by side, and the first stepped surface The surface 103 a retreats a long space away from the ultraviolet sterilizing device 30 relative to the second-step surface 103 b. In addition, in this embodiment, the evaporator 11 and the condenser 12 included in the heat exchange assembly 10 are arranged side by side. The evaporator 11 includes an air inlet surface 101 and a first stepped surface 103a, and the condenser 12 includes an air outlet surface 102 and a second stepped surface 103b. The front part of the air duct 21 further includes a protruding part 211 , which extends from the surface of the front part of the air duct 21 facing the air outlet surface 102 to between the ultraviolet sterilizing device 30 and the heat exchange end 103 . An opening is formed on the protruding portion 211 , through which the ultraviolet sterilizing device 30 irradiates light toward the heat exchange end portion 103 . In one embodiment, the heat exchange assembly 10 includes a plurality of fins 104 arranged side by side, and ends of the fins 104 respectively extend to the heat exchange end 103 .

Next, please refer to Figure 4, which is an exploded schematic view of the ultraviolet light sterilization device provided by this creation. As shown in FIG. 4 , the ultraviolet sterilizing device 30 provided by the embodiment of the present invention includes a carrier 31 , a circuit board 32 , a plurality of ultraviolet light emitting units 33 , a cover 34 and a light-transmitting protective plate 35 . The circuit substrate 32 is disposed on the bearing seat 31 and includes a mounting surface 321 . The mounting surface 321 is used for carrying the ultraviolet light emitting unit 33 and is disposed facing away from the bearing base 31 . In one embodiment, the bearing base 31 includes at least one screwing portion 311 for engaging with the front portion of the air duct 21 through screws. In one embodiment, the bearing base 31 includes at least one mounting buckle 312 for fastening with the front portion of the air duct 21 . The bearing seat 31 and the circuit substrate 32 can be made of plastic, ceramics, metal materials or other equivalent materials, and the circuit substrate 32 includes a conductive pattern for electrically connecting with the ultraviolet light emitting unit 33 .

A plurality of ultraviolet light emitting units 33 are disposed on the mounting surface 321 of the circuit substrate 32 and are electrically connected to the circuit substrate 32 . In an embodiment of the present invention, the plurality of ultraviolet light emitting units 33 may include any one of UVA, UVB and UVC light emitting diodes or any combination thereof. In an embodiment, each of the plurality of ultraviolet light emitting units 33 may be a UVA, UVB or UVC light emitting diode chip. In another embodiment, each of the plurality of ultraviolet light emitting units 33 may be a UVA, UVB or UVC light-emitting diode packaging structure, and the light-emitting diode packaging structure includes a substrate, a light-emitting diode chip, and a packaging material layer. The light emitting diode chip is arranged on the substrate and is electrically connected with the substrate. The encapsulation material layer is disposed on the substrate and covers the LED chip. Wherein, the substrate may be a ceramic substrate, and the packaging material layer may be an inorganic material or an organic material. UVA refers to ultraviolet light with a wavelength of 320 to 400nm, UVB refers to ultraviolet light with a wavelength of 280 to 320nm, and UVC refers to ultraviolet light with a wavelength of 200 to 280nm. Among them, UVA can be subdivided into UVA-2 and UVA-1, UVA-2 is ultraviolet light with a wavelength of 320 to 340 nm, and UVA-1 is ultraviolet light with a wavelength of 340 to 400 nm. Preferably, in the embodiment of the present invention, the plurality of ultraviolet light emitting units 33 at least include UVC light emitting diodes. More preferably, in the embodiment of the present creation, the plurality of ultraviolet light emitting units 33 of the ultraviolet light sterilization device 30 include at least two kinds of UVA, UVB and UVC light emitting diodes. For example, the plurality of ultraviolet light emitting units 33 include at least one UVA light emitting diode 331 and at least one UVC light emitting diode 332 , and the UVA light emitting diodes 331 and the UVC light emitting diodes 332 may be alternately arranged. In this way, excellent sterilization and disinfection effects can be achieved through the combination of different types of light-emitting diodes.

In an embodiment, the light-emitting diode chip may be a gallium nitride-based semiconductor light-emitting chip, which includes: a light-transmitting element substrate; an n-type semiconductor layer formed on the light-transmitting element substrate to cover the light-transmitting element substrate; p type semiconductor layer, formed to cover the region on the n-type semiconductor layer except the region for the n-electrode on the n-type semiconductor layer, and used to cooperate with the n-type semiconductor layer to emit light; the first n-electrode is formed on the n-type semiconductor layer thin film on the region of the semiconductor layer for the n-electrode; the first p-electrode, which is shaped a thin film formed on the p-type semiconductor layer; a first insulating layer formed to insulate the first n electrode and the first p electrode from each other; a second n electrode formed as a thin film on the first n electrode and the first insulating layer, including an area larger than a joint surface between the n-type semiconductor layer and the first n-electrode so that the second n-electrode is electrically connected to the first n-electrode, and the first insulating layer insulates the second n-electrode from the first p-electrode; and The second p-electrode is formed as a thin film and includes an area smaller than the joint surface between the n-type semiconductor layer and the p-type semiconductor layer, and the second p-electrode is electrically connected to the first p-electrode.

The cover 34 is disposed on the carrier 31 and the circuit substrate 32 to protect the circuit substrate 32 , so that the circuit substrate 32 is sandwiched between the carrier 31 and the cover 34 . Specifically, the cover 34 can be used to protect the circuit substrate 32 and the components thereon, such as the plurality of ultraviolet light emitting units 33 on the mounting surface 321 of the circuit substrate 32 . The cover 34 optionally includes at least one buckle or other fasteners to be combined with the bearing seat 31 . The cover body 34 includes a light outlet 341 , and the light-transmitting protection plate 35 is disposed on the light outlet 341 . The cover body 34 and/or the bearing seat 31 optionally include at least one blocking piece 36 and 37 for fixing the transparent protective plate 35 . The light-transmitting protective plate 35 may be a plate body made of materials such as quartz glass. In this invention, as long as the light beam emitted by the ultraviolet light emitting unit 33 can penetrate the light-transmitting protection plate 35 and emit to the outside, the material of the light-transmitting protection plate 35 is not limited. Both ends of the combined bearing base 31 and the cover body 34 respectively include joint openings for setting wires electrically connected to the circuit board 32 and the control circuit board 41 . The opening of the joint end where no wire is arranged is closed by a soft plug 38 to protect the circuit substrate 32 and the ultraviolet light emitting unit 33 . In one embodiment, the present invention can use a soft plug 38 to close the joint end opening of the bearing seat 31 and the cover body 34, and another soft plug 38 can be used to close the other end of the bearing seat 31 and the cover body 34. A joint end is open.

To sum up, at least one main technical means of this creation is that the ultraviolet sterilizing device 30 provided by the embodiment of this creation is through a bearing seat 31, a circuit board 32, a plurality of ultraviolet light emitting units 33, a cover body 34 and a transparent The structural design of the light protection plate 35 is arranged on one surface of the front part 21 of the air duct in the dehumidifier to achieve a sterilization effect on the inside of the dehumidifier.

In detail, in this invention, the ultraviolet sterilizing device 30 includes a cover 34 and a light-transmitting protection plate 35, which has dual functions of protection and light emission. In this way, the ultraviolet sterilizing device 30 provided by the embodiment of the invention is arranged on the protruding part 211 with an opening in the front part 21 of the internal air duct of the dehumidifier, which can ensure the sterilization and disinfection effect and help to improve the indoor air quality.

Although the embodiments of this creation are disclosed in the above-mentioned relatively detailed manner, those with ordinary knowledge in the technical field of this creation can understand that various modifications of this creation can be made without departing from the premise of the scope of this creation defined in the appended patent scope. next. Therefore, further modification of the embodiments of this creation will not deviate from the technical scope of this creation.

30: Ultraviolet light sterilization device

31: Bearing seat

311: screw joint

312: Mounting Buckle

32: Circuit board

321: Mounting surface

33: UV light emitting unit

331:UVA light-emitting diode

332:UVC light-emitting diode

34: cover body

341: light outlet

35: Light-transmitting protective board

36, 37: Bracket

38: soft plug

Claims (18)

An ultraviolet sterilizing device, comprising: a bearing seat; a circuit substrate arranged on the bearing seat, the circuit substrate includes an installation surface, the installation surface is arranged facing away from the bearing seat; a plurality of ultraviolet light emitting units are arranged On the mounting surface of the circuit substrate and electrically connected to the circuit substrate, the ultraviolet light emitting units include any one of UVA, UVB and UVC light-emitting diodes or any combination thereof; a cover is arranged on the The bearing seat and the circuit substrate are used to protect the circuit substrate. The cover body includes a light outlet; and a light-transmitting protection plate is arranged on the light outlet of the cover body. It can penetrate the light-transmitting protective plate and emit to the outside world. The ultraviolet sterilizing device according to claim 1, wherein the ultraviolet light emitting units include at least one UVA light emitting diode and at least one UVC light emitting diode. Such as the ultraviolet sterilizing device of claim 1, wherein the ultraviolet light-emitting units include a plurality of UVA light-emitting diodes and a plurality of UVC light-emitting diodes, and the UVA light-emitting diodes and the UVC light-emitting diode systems staggered with each other. According to claim 1, the ultraviolet sterilizing device further includes a soft plug for closing an opening at a joint end of the bearing seat and the cover. The ultraviolet sterilizing device of claim 1, further comprising: two soft plugs, one soft plug is used to close the joint end opening of the bearing seat and the cover body, and the other soft plug is used to close the bearing seat and the cover body The other joint end is open. The ultraviolet sterilizing device according to claim 1, wherein the light-transmitting protective plate is made of glass. Such as the ultraviolet light sterilization device of claim 1, wherein the ultraviolet light emitting units are A plurality of light-emitting diode chips. Such as the ultraviolet sterilizing device of claim 1, wherein the ultraviolet light emitting units are a plurality of light emitting diode packaging structures, and each light emitting diode packaging structure includes a substrate, a light emitting diode chip and a packaging material layer. A dehumidifier, comprising: a heat exchange assembly, including an air inlet surface, an air outlet surface opposite to the air inlet surface, and a heat exchange end located on the same side of the air inlet surface and the air outlet surface; an air supply assembly into, comprising an air channel front, the air channel front is disposed on one side of the air outlet surface of the heat exchange assembly, and includes a protruding portion extending relative to the air outlet surface to protrude outside the heat exchange end; and The ultraviolet sterilizing device according to any one of claims 1 to 8 is arranged on one surface facing the air outlet surface at the front of the air duct, and is at least partly opposite to the heat exchange end; wherein, as in the claim The ultraviolet sterilizing device of any one of 1 to 8 is used to provide an ultraviolet light irradiation area, and the ultraviolet light irradiation area at least covers the heat exchange end. The dehumidifier according to claim 9, wherein the heat exchange end includes: a first-stage surface, facing the ultraviolet light sterilization device; and a second-stage surface, facing the ultraviolet light sterilization device; wherein, the first stage surface It is parallel to the second step surface, and the first step surface retreats a long space away from the ultraviolet sterilizing device relative to the second step surface. The dehumidifier according to claim 10, wherein the heat exchange assembly includes: an evaporator, including the air inlet surface and the first stage surface; and a condenser, arranged side by side with the evaporator, and including the air outlet surface and The second level surface. The dehumidifier according to claim 9, wherein the front part of the air duct further includes a protruding part, and the protruding part extends from the surface of the front part of the air duct facing the air outlet surface to the ultraviolet sterilizing device and the heat exchange Between the ends, an opening is formed on the protruding part, and the ultraviolet sterilizing device faces the heat exchange via the opening. The end shines light. The dehumidifier according to claim 9, wherein the bearing seat of the ultraviolet light sterilization device includes at least one screw joint, which is used to connect with the front part of the air duct through a screw. The dehumidifier according to claim 9, wherein the bearing seat of the ultraviolet sterilizing device includes at least one mounting buckle for buckling with the front of the air duct. The dehumidifier according to claim 9, wherein the heat exchange assembly includes a plurality of fins arranged side by side, and the ends of the fins respectively extend to the heat exchange end. The dehumidifier according to claim 9, wherein the air supply assembly further includes a centrifugal fan, and the front part of the air duct is disposed between the heat exchange assembly and the centrifugal fan. The dehumidifier according to claim 16, further comprising: a top cover, the top cover includes an air outlet, the air outlet is arranged above the centrifugal fan; and a chassis, the chassis and the top cover form accommodating the heat exchange assembly Formation, the space of the ultraviolet sterilizing device and the air supply assembly. The dehumidifier according to claim 9 further includes a control circuit board electrically connected to the heat exchange assembly, the ultraviolet sterilizing device and the air supply assembly.

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