Bath heater

Abstract

The utility model provides a bath heater which comprises a machine shell and a fan, an air channel is arranged in the machine shell, the air channel is provided with a first air return opening and a first air outlet, the fan is installed in the air channel and located at the first air return opening, the bath heater further comprises an ultraviolet unit, and the ultraviolet unit is installed in the air channel. The ultraviolet unit is located at the bottom of the air channel and located between the draught fan and the first air outlet, the ultraviolet unit can irradiate ultraviolet light to the top of the air channel, and the bath heater has the advantages of being good in sterilization and disinfection effect and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a bathroom heater. Background Art

[0002] The bathroom heater is the preferred heating device for bathing. It can increase the temperature in the bathroom in a short time to prevent users from catching a cold during bathing. However, bathrooms are usually limited in space and poorly ventilated, so they are often humid. In addition, bathrooms are also used for washing and cleaning hands, which makes it easier for bacteria and viruses to grow in the bathroom, thus affecting the health of users. In response to this, some existing new bathroom heaters are equipped with ultraviolet lamps to sterilize and disinfect the bathroom through ultraviolet light. However, the disadvantages of such bathroom heaters are:

[0003] First, the UV lamp has a limited irradiation area, which makes the sterilization and disinfection effect poor;

[0004] Second, since ultraviolet lamps are harmful to the human body, it is impossible to turn on the ultraviolet sterilization and disinfection functions in spaces where people are active, which reduces the practicality of this type of bathroom heater to a certain extent. Summary of the invention

[0005] In order to solve the above problems, the main purpose of the utility model is to provide a bathroom heater with good sterilization and disinfection effects and strong practicality.

[0006] In order to achieve the main purpose of the utility model, the utility model provides a bathroom heater, including a casing and a fan, wherein an air duct is arranged in the casing, the air duct has a first return air port and a first air outlet, the fan is installed in the air duct and located at the first return air port, wherein the bathroom heater also includes an ultraviolet unit, the ultraviolet unit is installed in the air duct, the ultraviolet unit is located at the bottom of the air duct and between the fan and the first air outlet, and the ultraviolet unit can irradiate ultraviolet light to the top of the air duct.

[0007] As can be seen from the above, by setting the position of the ultraviolet unit and the direction of light, the ultraviolet light emitted by the ultraviolet unit when it is working will not irradiate into the bathroom, thereby avoiding harm to the human body caused by ultraviolet light. At the same time, it also allows users to use the ultraviolet light unit simultaneously when using the basic functions of the bathroom heater (such as heating, ventilation, etc.) in the bathroom, thereby improving the practicality of the bathroom heater; in addition, since the ultraviolet unit is arranged in the air duct, the ultraviolet unit can sterilize and disinfect the air passing through the air duct during the air circulation process in which the fan draws the air in the bathroom into the air duct and discharges it through the first air outlet, thereby greatly improving the disinfection and sterilization effect of the ultraviolet unit on the bathroom.

[0008] A further solution is that the ultraviolet unit includes a first light source, a lens module and a heat sink, the first light source includes a light source board and LED lamp beads, the LED lamp beads are installed on the light source board, the lens module has a frame and a focusing lens, the frame is arranged around the periphery of the focusing lens, the light source board covers the frame, the LED lamp beads are arranged toward the incident end of the focusing lens, and the heat sink is attached to the light source board.

[0009] It can be seen from the above that through the design of the ultraviolet unit, the focusing lens can concentrate the ultraviolet light emitted by the LED lamp beads to enhance the brightness, improve the luminous efficiency of the LED lamp beads, and reduce the loss of ultraviolet light, thereby increasing the light energy in the unit space and improving the sterilization and disinfection effects of the ultraviolet unit; and because the LED lamp beads will generate a lot of heat during operation, a radiator is set up so that the radiator can cooperate with the fan to force the first light source to dissipate heat, thereby delaying the light decay of the LED lamp beads and extending the service life of the LED lamp beads.

[0010] A preferred solution is that the radiator has a support plate and cooling fins, the support plate is attached to the light source board, the cooling fins are located at the LED lamp beads, the cooling fins extend from the support plate along the air outlet direction of the air duct, and the cooling fins extend into the air duct.

[0011] It can be seen from the above that the design of the heat sink fins can help the radiator to better dissipate the heat of the LED lamp beads with the help of the heat sink fins and the air flow in the air duct, thereby improving the heat dissipation effect of the LED lamp beads.

[0012] A further solution is that the heat dissipation fin has a windward portion and an air guiding portion, along the wind outlet direction, the windward portion is located at the upstream end of the air guiding portion, and the air guiding portion extends along the wind outlet direction.

[0013] As can be seen from the above, the windward portion can guide the air passing through the heat sink fins, so that this part of the air can pass through the wind guide portion better, thereby enabling the heat sink fins and the air to exchange heat better, thereby improving the heat dissipation effect of the radiator.

[0014] A further solution is that the bathroom heater also includes a guide cover, which is installed at the bottom of the air duct, forming a accommodating position between the guide cover and the casing, and the guide cover has a guide plate, which is provided with a first avoidance position and a second avoidance position; the first light source, the lens module and the support plate are all located in the accommodating position, a part of the lens module is located in the first avoidance position, and the heat dissipation fins extend out of the accommodating position through the second avoidance position.

[0015] It can be seen from the above that the setting of the guide cover can optimize the structure of the casing, making the structure of the casing more compact, thereby helping to reduce the volume of the casing; in addition, the design of the guide plate on the guide cover can prevent the guide cover from disturbing the air flow in the air duct and allow the air to pass through the cooling fins better.

[0016] A further solution is that the number of LED lamp beads is more than two, and the more than two LED lamp beads are distributed along the width direction of the air duct; the number of focusing lenses is more than two, and the more than two focusing lenses correspond one-to-one to the more than two LED lamp beads; the number of heat sinking fins is more than two, and the more than two heat sinking fins correspond one-to-one to the more than two LED lamp beads; the number of second avoidance positions is more than two, and the more than two second avoidance positions correspond one-to-one to the more than two heat sinking fins.

[0017] It can be seen from the above that by adjusting the design parameters such as the number of LED lamp beads of the ultraviolet unit, the ultraviolet unit can meet different disinfection and sterilization rate requirements for the air.

[0018] Another preferred solution is that the focusing angle of the focusing lens is between 25° and 35°; and the LED lamp beads are UVC-LED lamp beads.

[0019] It can be seen from the above that by designing the focusing angle of the focusing lens, the ultraviolet light emitted by the LED lamp beads can achieve a better focusing effect and prevent the light from overflowing, thereby better ensuring the light energy within the unit space and achieving excellent sterilization and disinfection effects of the ultraviolet unit.

[0020] A further solution is that the lens module is made of polycarbonate, glass or silicone; and / or an anti-ultraviolet film is provided in the area of ​​the housing illuminated by the first light source.

[0021] As can be seen from the above, using materials such as polycarbonate, glass or silicone to make the lens module can make the lens module have better anti-ultraviolet light effect, thereby preventing the lens module from being degraded under the irradiation of ultraviolet light and extending the service life of the lens module; and providing an anti-ultraviolet film in the area of ​​the casing illuminated by the first light source can also prevent the casing from being degraded and extend the service life of the casing.

[0022] A further solution is that the bathroom heater also includes a heater, which is arranged at the first air outlet.

[0023] As can be seen from the above, the heater can heat the air discharged from the first air outlet, thereby quickly raising the temperature in the bathroom.

[0024] A further solution is that the bathroom heater also includes a face cover unit, which is arranged at the bottom of the casing. The face cover unit includes a face cover, a second light source and an air guide grille. The face cover is provided with a light outlet, a second return air outlet and a second air outlet. The face cover covers the bottom of the casing. There is a gap between the face cover and the casing. The light outlet is located at the first return air outlet. The second return air outlet is arranged around the light outlet. The second return air outlet is connected with the gap. The second air outlet is arranged opposite to the first air outlet. The second light source is installed on the face cover and the second light source is located at the light outlet. The air guide grille is installed on the face cover and the air guide grille is located at the second air outlet.

[0025] As can be seen from the above, the cover unit can illuminate the bathroom through the second light source thereon, and the air duct can introduce the air in the bathroom into its own first return air outlet through the second return air outlet, gaps, etc., thereby improving the circulation effect of the air in the bathroom; the air guide grille is used to guide the hot air discharged from the first air outlet, so that the hot air can flow better into the bathroom, so that the temperatures of various areas in the bathroom can approach equality more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of an embodiment of the utility model of a bathroom heater.

[0027] Figure 2 It is a cross-sectional view of an embodiment of the utility model of a bathroom heater.

[0028] Figure 3 This is a structural diagram of the bathroom heater embodiment of the utility model from the first viewing angle after omitting some components.

[0029] Figure 4 This is a structural diagram of the bathroom heater embodiment of the utility model from the second viewing angle after some components are omitted in the first embodiment.

[0030] Figure 5 It is an exploded view of the ultraviolet unit of the bathroom heater embodiment of the present utility model.

[0031] Figure 6 It is a structural diagram of the ultraviolet unit of the bathroom heater embodiment of the utility model.

[0032] Figure 7 This is a structural diagram of the second embodiment of the bathroom heater of the utility model after omitting some components.

[0033] Figure 8 yes Figure 2 Enlarged view of point A in the middle.

[0034] Fig. 9 This is a structural diagram of the bathroom heater embodiment of the utility model from the third viewing angle after some components are omitted in the first embodiment.

[0035] Fig.10 It is a structural diagram of the ultraviolet unit of the bathroom heater embodiment of the utility model under different design parameters.

[0036] Fig.11 yes Figure 2 Enlarged view of point B in the middle.

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0038] Reference Figure 1 and Figure 2The bathroom heater 100 includes a housing 1, a fan 2, a UV unit 3, a guide cover 4, a heater 5, a cover unit 6 and a controller 7.

[0039] Combination Figure 3 The housing 1 is provided with an air duct 11, and the air duct 11 has a first return air port 111 and a first air outlet 112, and the first return air port 111 and the first air outlet 112 are preferably formed at the bottom of the housing 1. The fan 2 is installed in the air duct 11, and the fan 2 is preferably located at the first return air port 111, and the fan 2 is used to pump the air in the bathroom from the first return air port 111 into the air duct 11 and discharge the air back into the bathroom through the first air outlet 112.

[0040] Combination Figure 4 , the ultraviolet unit 3 is installed in the air duct 11, and the ultraviolet unit 3 is located between the fan 2 and the first air outlet 112. In addition, the ultraviolet unit 3 is located at the bottom of the air duct 11, that is, when the bathroom heater 100 is in the installed state, the ultraviolet unit 3 is located at the bottom of the casing 1. The ultraviolet unit 3 can irradiate ultraviolet light to the top of the air duct 11, that is, when the bathroom heater 100 is in the installed state, the ultraviolet unit 3 can irradiate ultraviolet light to the top of the casing 1. It can be seen that the ultraviolet unit 3 is arranged at the bottom of the air duct 11 and the ultraviolet unit 3 is made to irradiate ultraviolet light to the top of the air duct 11, so that the ultraviolet light emitted by the ultraviolet unit 3 when working will not irradiate into the bathroom, thereby ensuring to the greatest extent that the ultraviolet light will not overflow and harm people, and even if the ultraviolet light is accidentally projected out of the casing 1, due to the position of the ultraviolet unit 3 and the setting of the light direction, the ultraviolet light will only irradiate to the top of the bathroom instead of irradiating into the bathroom.

[0041] In addition, the above design also allows users to use the UV unit to sterilize and disinfect the air in the bathroom while using the basic functions of the bathroom heater 100 (such as heating, ventilation, etc.), so as to better ensure the hygiene and safety of users when using the bathroom, thereby improving the practicality of the bathroom heater 100. Figure 2 As shown, during the air circulation process in which the fan 2 draws the air in the bathroom into the air duct 11 and discharges it through the first air outlet 112, the ultraviolet light emitted by the ultraviolet unit 3 forms a light curtain, and then sterilizes and disinfects the air passing through the light curtain, thereby greatly improving the disinfection and sterilization effect of the ultraviolet unit 3 on the bathroom.

[0042] Combination Figure 5 and Figure 6 The ultraviolet unit 3 preferably includes a first light source 31, a lens module 32 and a heat sink 33. The first light source 31 includes a light source board 311 and LED lamp beads 312, and the LED lamp beads 312 are integrated or welded on the light source board 311; wherein the LED lamp beads 312 are UVC-LED lamp beads, so that the ultraviolet unit 3 can cooperate with the fan 2 to reliably circulate and sterilize the air in the bathroom.

[0043] The lens module 32 has an integrally formed frame 322 and a focusing lens 321. The frame 322 is arranged around the outer periphery of the focusing lens 321. The frame 322 is used to fix and position the focusing lens 321, so that the lens module 32 can be stably and reliably assembled with the first light source 31. When the lens module 32 is assembled with the first light source 31, the light source plate 311 is located at the incident end of the focusing lens 321, and the light source plate 311 covers the frame 322, and the LED lamp beads 312 are arranged toward the incident end of the focusing lens 321. Since the luminous efficiency of the LED lamp beads 312 is not high, the ultraviolet light loss can be effectively reduced and the light intensity can be enhanced by setting the focusing lens 321 to focus the ultraviolet light emitted by the LED lamp beads 312, so as to improve the luminous efficiency of the LED lamp beads 312 and reduce the loss of ultraviolet light, thereby increasing the light energy in the unit space and improving the sterilization and disinfection effect of the ultraviolet unit 3.

[0044] Preferably, a receiving groove 3211 is formed at the incident end of the focusing lens 321. When the lens module 32 is assembled with the first light source 31, at least a part of the LED lamp bead 312 is located in the receiving groove 3211. This design is conducive to the focusing lens 321 to better focus the ultraviolet light emitted by the LED lamp bead 312 and prevent the ultraviolet light from overflowing. Further, the focusing angle of the ultraviolet light emitted by the focusing lens 321 to the LED lamp bead 312 is preferably between 25° and 35°, and preferably, the focusing angle of the ultraviolet light emitted by the focusing lens 321 to the LED lamp bead 312 is 30°; it can be seen that by designing the focusing angle of the focusing lens 321, the ultraviolet light emitted by the LED lamp bead 312 can achieve a better focusing effect, and prevent the light from overflowing, so as to better ensure the light energy in the unit space, and make the sterilization and disinfection effect of the ultraviolet unit 3 reach an excellent degree.

[0045] The heat sink 33 is attached to the light source board 311 of the first light source 31. The LED lamp beads 312 will generate a lot of heat during operation, and the heat sink 33 can cooperate with the fan 2 to force the first light source 31 to dissipate heat, thereby delaying the light decay of the LED lamp beads 312 and extending the service life of the LED lamp beads 312. Preferably, the heat sink 33 has a support plate 331 and heat dissipation fins 332. When the heat sink 33 is assembled with the first light source 31, the support plate 331 is attached to the light source board 311; the heat dissipation fins 332 are located at the LED lamp beads 312, and the heat dissipation fins 332 extend from the support plate 331 along the air outlet direction of the air duct 11. At the same time, when the ultraviolet unit 3 is installed in the air duct 11, the heat dissipation fins 332 extend into the air duct 11, so that the heat sink 33 can better dissipate the heat of the LED lamp beads 312 with the help of the heat dissipation fins 332 and the air flow in the air duct 11, thereby improving the heat dissipation effect of the heat sink 33 on the LED lamp beads 312. Furthermore, the heat sink fin 332 has a windward portion 3321 and an air guide portion 3322. Along the air outlet direction of the air duct 11, the windward portion 3321 is located at the upstream end of the air guide portion 3322; the air guide portion 3322 is preferably plate-shaped, and the air guide portion 3322 extends along the air outlet direction of the air duct 11; the windward portion 3321 can guide the air passing through the heat sink fin 332 so that the air can pass through the air guide portion 3322 better, and the air guide portion 3322 is used to increase the contact area between the heat sink 33 and the air, so that the heat sink fin 332 and the air can exchange heat better, thereby improving the heat dissipation effect of the heat sink 33. Among them, the heat sink 33 is preferably a profile or formed by a sheet metal process.

[0046] Combination Figures 7 to 9, the guide cover 4 is installed at the bottom of the air duct 11, and a receiving position 41 is formed between the guide cover 4 and the housing 1. The guide cover 4 has a guide plate 42, and a first avoidance position 421 and a second avoidance position 422 are provided on the guide plate 42. The first avoidance position 421 and the second avoidance position 422 both penetrate the guide plate 42 and communicate with the receiving position 41. The first light source 31 of the ultraviolet unit 3, the lens module 32 and the support plate 331 of the radiator 33 are all located in the receiving position 41, and a part of the lens module 32 is located in the first avoidance position 421, and the heat dissipation fin 332 extends out of the receiving position 41 through the second avoidance position 422. The setting of the guide cover 4 can optimize the structure of the housing 1, so that the structure of the housing 1 is more compact, which is conducive to reducing the volume of the housing 1; and the design of the guide plate 42 on the guide cover 4 can prevent the guide cover 4 from disturbing the air flow in the air duct 11, and make the air pass through the heat dissipation fin 332 better. Preferably, the frame 322 of the lens module 32 is formed with a step portion 3221, which is engaged in the first avoidance position, and the top surface of the step portion 3221 is flush with or tangent to the top surface (i.e., the guide surface) of the guide plate 42, so as to prevent the air in the air duct 11 from being disturbed when passing through the guide cover 4 and the lens module 32. Furthermore, the guide plate 42 is also formed with a countersunk hole 423 and a card slot 424, and the housing 1 is formed with a connecting column 12 matching the countersunk hole 423 at the countersunk hole 423, and a buckle 13 matching the card slot 424 at the card slot 424. This design makes the assembly between the guide cover 4 and the housing 1 more convenient and easy to operate, and ensures the firmness and reliability of the connection between the guide cover 4 and the housing 1.

[0047] It should be noted that parameters such as the number of LED lamp beads 312 of the first light source 31, the number of focusing lenses 321 of the lens module 32, and the number of cooling fins 332 of the radiator 33 can be adjusted according to the actual requirements for the air sterilization rate, so that the ultraviolet unit 3 can meet different disinfection and sterilization rate requirements for the air. Among them, the number of LED lamp beads 312 is more than two, and the more than two LED lamp beads 312 are distributed along the width direction of the air duct 11; the number of focusing lenses 321 is more than two, and the more than two focusing lenses 321 are distributed along the width direction of the air duct 11, and the more than two focusing lenses 321 correspond one-to-one to the more than two LED lamp beads 312; the number of heat sinking fins 332 is more than two, and the more than two heat sinking fins 332 are distributed along the width direction of the air duct 11, and the more than two heat sinking fins 332 correspond one-to-one to the more than two LED lamp beads 312; correspondingly, the number of second avoidance positions 422 on the guide cover 4 is more than two, and the more than two second avoidance positions 422 are distributed along the width direction of the air duct 11, and the more than two second avoidance positions 422 correspond one-to-one to the more than two heat sinking fins 332. For example, in this embodiment, the number of LED lamp beads 312 is four, the number of focusing lenses 321 is four, one LED lamp bead 312 is matched with one focusing lens 321, the number of heat sink fins 332 is four, one heat sink fin 332 is arranged at one LED lamp bead 312, the number of second avoidance positions 422 is four, and one heat sink fin 332 passes through one second avoidance position 422; Fig.10 As shown in (a), in another embodiment, the number of LED lamp beads 312 is three, the number of focusing lenses 321 is three, the number of heat dissipation fins 332 is three, and the number of second avoidance positions 422 is three; Fig.10 As shown in (b), in another embodiment, the number of LED lamp beads 312 is five, the number of focusing lenses 321 is five, the number of heat dissipation fins 332 is five, and the number of second avoidance positions 422 is five; Fig.10 As shown in (c), in another embodiment, the number of LED lamp beads 312 is six, the number of focusing lenses 321 is six, the number of heat dissipation fins 332 is six, and the number of second avoidance positions 422 is six.

[0048] In addition, the lens module 32 is preferably made of polycarbonate, glass or silicone, so that the lens module 32 has a good anti-ultraviolet light effect, thereby preventing the lens module 32 from being degraded under the irradiation of ultraviolet light, and can extend the service life of the lens module 32; and / or, combined with Fig.11The anti-ultraviolet film 14 is arranged in the area of ​​the housing 1 irradiated by the first light source 31 to prevent the housing 1 from being degraded under the irradiation of ultraviolet light, thereby extending the service life of the housing 1. The anti-ultraviolet film 14 can be a PET (polyethylene terephthalate) film, a PVDF (polyvinylidene fluoride) film, a metal film (such as an aluminum sheet, a stainless steel sheet, a copper sheet, a zinc sheet, etc.), a coating (such as a fluorocarbon coating, a polyurethane coating, a silane coating, etc.).

[0049] Combination Figure 1 and Figure 2 The heater 5 is disposed at the first air outlet 112, and the heater 5 can heat the air discharged from the first air outlet 112, thereby rapidly heating the bathroom. Preferably, the heater 5 is a PTC ceramic heater. Furthermore, the heater 5 is located near the first air outlet 112 and the inner side of the air duct 11, and in the air outlet direction of the air duct 11, the end of the guide plate 42 of the guide cover 4 is flush with or tangent to the heater 5.

[0050] When the bathroom heater 100 is in the installed state, the cover unit 6 is located at the bottom of the housing 1; the cover unit 6 includes a cover 61, a second light source 62 and an air guide grille 63. The cover 61 is provided with a light outlet 611, a second air return outlet 612 and a second air outlet 613. The cover 61 covers the bottom of the housing 1, and there is a gap 60 between the cover 61 and the housing 1; the light outlet 611 is preferably located at the first air return outlet 111, the second air return outlet 612 is arranged around the light outlet 611, the second air return outlet 612 is connected to the gap 60, and the second air outlet 613 is preferably arranged directly opposite the first air outlet 112; the air duct 11 can introduce the air in the bathroom into its own first air return outlet 111 through the second air return outlet 612, the gap 60, etc., thereby improving the circulation effect of the air in the bathroom. The second light source 62 is installed on the cover 61, and the second light source 62 is located at the light outlet 611. The cover unit 6 can realize the lighting of the bathroom through the second light source 62. The air guide grille 63 is installed on the cover 61, and the air guide grille 63 is located at the second air outlet 613. The air guide grille 63 is used to guide the hot air discharged from the first air outlet 112, so that the hot air flows into the bathroom better, so that the temperature of each area in the bathroom tends to be equal more quickly, thereby reducing the temperature difference between each area in the bathroom. The controller 7 is installed in the housing 1, and the controller 7 is electrically connected to the fan 2, the light source board 311, the heater 5 and the second light source 62 respectively.

[0051] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Yuba, including: A casing, wherein an air duct is disposed in the casing, and the air duct has a first return air port and a first air outlet; A fan, the fan being installed in the air duct and located at the first return air outlet; Characterized in that, the bathroom heater also includes: An ultraviolet unit is installed in the air duct, the ultraviolet unit is located at the bottom of the air duct and between the fan and the first air outlet, and the ultraviolet unit can irradiate ultraviolet light to the top of the air duct.

2. The bathroom heater according to claim 1, characterized in that: The ultraviolet unit comprises: A first light source, the first light source comprises a light source board and LED lamp beads, and the LED lamp beads are mounted on the light source board; A lens module, wherein the lens module comprises a frame and a condenser lens, wherein the frame is arranged around the periphery of the condenser lens, the light source plate is covered on the frame, and the LED lamp beads are arranged toward the incident end of the condenser lens; A heat sink is attached to the light source panel.

3. The bathroom heater according to claim 2, characterized in that: The radiator comprises a support plate and cooling fins, wherein the support plate is attached to the light source plate, the cooling fins are located at the LED lamp beads, the cooling fins extend from the support plate along the air outlet direction of the air duct, and the cooling fins extend into the air duct.

4. The bathroom heater according to claim 3, characterized in that: The heat dissipation fin comprises a windward portion and a wind guiding portion. Along the wind outlet direction, the windward portion is located at the upstream end of the wind guiding portion, and the wind guiding portion extends along the wind outlet direction.

5. The bathroom heater according to claim 3, characterized in that: The bathroom heater further comprises a guide cover, the guide cover is mounted at the bottom of the air duct, a receiving position is formed between the guide cover and the housing, the guide cover has a guide plate, and a first avoidance position and a second avoidance position are arranged on the guide plate; The first light source, the lens module and the support plate are all located in the accommodation position, a part of the lens module is located in the first avoidance position, and the heat dissipation fins extend out of the accommodation position through the second avoidance position.

6. The bathroom heater according to claim 5, characterized in that: The number of the LED lamp beads is more than two, and the more than two LED lamp beads are distributed along the width direction of the air duct; The number of the condenser lenses is more than two, and the more than two condenser lenses correspond one to one with the more than two LED lamp beads; The number of the heat dissipation fins is more than two, and the more than two heat dissipation fins correspond one-to-one to the more than two LED lamp beads; The number of the second avoidance positions is more than two, and the more than two second avoidance positions correspond one-to-one to the more than two heat dissipation fins.

7. The bathroom heater according to claim 2, characterized in that: The focusing angle of the focusing lens is between 25° and 35°; The LED lamp beads are UVC-LED lamp beads.

8. The bathroom heater according to any one of claims 2 to 7, characterized in that: The lens module is made of polycarbonate, glass or silicone; and / or An anti-ultraviolet film is provided in the area of ​​the casing illuminated by the first light source.

9. The bathroom heater according to claim 8, characterized in that: The bathroom heater also includes a heater, which is arranged at the first air outlet.

10. The bathroom heater according to claim 9, characterized in that: The bathroom heater further comprises a cover unit, which is arranged at the bottom of the housing and comprises: A face cover, wherein the face cover is provided with a light outlet, a second air return outlet and a second air outlet, the face cover covers the bottom of the housing, a gap is provided between the face cover and the housing, the light outlet is located at the first air return outlet, the second air return outlet is provided around the light outlet, the second air return outlet is communicated with the gap, and the second air outlet is provided opposite to the first air outlet; A second light source, the second light source is mounted on the surface cover, and the second light source is located at the light outlet; An air guide grille is installed on the surface cover and is located at the second air outlet.

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