Self-cooling type UV sterilization water purifying device

Abstract

This utility model discloses a self-cooling UV sterilization water purification device, including a housing and a UV sterilization module. The housing has a chamber with an inlet and an outlet, and the chamber is equipped with a positioning seat. The positioning seat is equipped with a partition. The UV sterilization module is equipped with a heat-conducting plate, and a U-shaped heat dissipation channel is formed between the heat-conducting plate, the partition, and the positioning seat. A sterilization channel is formed between the UV sterilization module and the chamber. The UV sterilization module is equipped with a UV lamp. One end of the heat dissipation channel is equipped with a flow guide between it and the inlet, and the other end is connected to the sterilization channel. In this way, the flow guide allows the water to enter the heat dissipation channel from the inlet first, so as to transfer the heat generated by the UV sterilization module during use to the water. Then, the water flows out from the other end of the U-shaped heat dissipation channel and enters the sterilization channel. After being sterilized and disinfected by the UV lamp, it flows out from the outlet. This realizes the self-cooling heat dissipation of the UV sterilization module in the device. With the setting of the heat-conducting plate, the heat dissipation effect of the UV sterilization module is improved. It is highly practical and has a wide range of applications.

Description

Technical Field

[0001] This utility model relates to the field of disinfection boxes, and in particular to a self-cooling UV sterilization and water purification device. Background Technology

[0002] Currently, ultraviolet (UV) sterilizers are an important type of water treatment equipment. They primarily utilize strong UV light generated by a UV light generator to irradiate flowing water to achieve disinfection. During use, when bacteria and viruses in the water are exposed to a certain dose of UV light, their cellular DNA and structure are damaged, preventing cell regeneration and thus achieving water disinfection and purification. In addition, UV light can also decompose organic molecules in the water, generating hydrogen free radicals and oxidizing organic molecules in the water into carbon dioxide, thereby removing organic carbon.

[0003] However, the existing ultraviolet sterilizer has a poor structural design. Since the ultraviolet irradiation area of ​​the ultraviolet sterilizer is set on the inner wall of the pipe, during operation, some of the heat generated by the ultraviolet lamp is absorbed and discharged by the water flowing inside the pipe. The remaining heat requires an additional heat dissipation device to be added to the ultraviolet sterilizer to dissipate the heat of the ultraviolet lamp. The product has a large overall size, high manufacturing cost, and limited applicability.

[0004] Therefore, a new technical solution needs to be researched to address the above problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a self-cooling UV sterilization water purification device. It utilizes a guide component to allow water to first enter the heat dissipation channel from the inlet, transferring the heat generated by the UV sterilization module during operation to the water. The water then flows out from the other end of the U-shaped heat dissipation channel and into the sterilization channel, where it is sterilized by the UV lamp before flowing out from the outlet. This achieves self-cooling heat dissipation for the UV sterilization module within the device. Combined with the heat-conducting plate, the heat dissipation effect of the UV sterilization module is improved, resulting in a highly practical and widely applicable device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A self-cooling UV sterilization water purification device includes a housing and a UV sterilization module. The housing has a chamber with an inlet and an outlet. A positioning seat is provided on the chamber. The positioning seat is U-shaped and has a partition at its center. The UV sterilization module is located on the upper part of the positioning seat and the partition. A heat-conducting plate is provided on one side of the UV sterilization module near the positioning seat and the partition, forming a U-shaped heat dissipation channel between the heat-conducting plate, the partition, and the positioning seat. A sterilization channel is formed between the other side of the UV sterilization module and the chamber. The UV sterilization module has a UV lamp, the light source of which shines towards the sterilization channel. A flow guide is provided between one end of the heat dissipation channel and the inlet, and the other end of the heat dissipation channel is connected to the sterilization channel, so that the water first enters the heat dissipation channel from the inlet and then enters the sterilization channel from the other end of the heat dissipation channel.

[0008] As a preferred embodiment, the UV sterilization module includes a middle layer plate, an upper layer plate, and a light-transmitting component. Both the upper layer plate and the heat-conducting plate are metal plates. A circuit layer is provided at the upper end of the heat-conducting plate, and the UV lamp is soldered onto the circuit layer. The middle layer plate has a through-cavity and is bonded to the upper end of the heat-conducting plate with high-temperature adhesive. The UV lamp is located inside the cavity, and a reflective metal surface is provided on the inner wall of the cavity. The upper layer plate is bonded to the upper end of the middle layer plate with high-temperature adhesive, and an opening is provided on the upper layer plate corresponding to the cavity. A metal frame is provided at the lower end of the light-transmitting component, and the metal frame is arranged in a ring around the lower edge of the light-transmitting component. The metal frame is welded and fixed to the upper end of the middle layer plate to seal the cavity.

[0009] As a preferred embodiment, the sterilization channel is provided with several spaced guide plates, which are located between the inlet and outlet. The UV sterilization module is located on the lower side of the guide plates. The guide plates are provided with guide ports. In two adjacent guide plates, the guide port of one guide plate is located at the front section of the guide plate, and the guide port of the other guide plate is located at the rear section of the guide plate, so that the water flows into the sterilization channel and then flows through the guide plates in an S-shape.

[0010] As a preferred embodiment, the guide plate is a glass light-transmitting guide plate.

[0011] As a preferred embodiment, one UV sterilization module is provided, one positioning seat is provided and disposed on the lower end surface of the chamber, and the UV sterilization module is disposed on the upper end of the positioning seat;

[0012] Alternatively, two UV sterilization modules may be provided, and correspondingly, two positioning seats may be provided and symmetrically arranged on the two end faces of the chamber, with the two UV sterilization modules respectively mounted on the two positioning seats;

[0013] Alternatively, four UV sterilization modules are provided, and four positioning seats are provided and respectively located on the upper end face, lower end face, front end face, and rear end face of the chamber. The four UV sterilization modules are respectively located on the four positioning seats and are arranged opposite to the UV sterilization modules on the corresponding sides.

[0014] As a preferred embodiment, the heat-conducting plate is provided with a terminal block, the outer side of the housing is provided with a wire inlet hole, and a connecting wire is also provided. One end of the connecting wire enters the chamber through the wire inlet hole and is connected to the terminal block. A waterproof strip is provided on the outer side of the terminal block and the connecting wire, and a metal cover is provided on the outer side of the waterproof strip.

[0015] As a preferred option, the waterproof strip is made of plastic.

[0016] As a preferred embodiment, a seal is provided between the outer side of the inlet hole and the surface of the connecting wire.

[0017] As a preferred embodiment, the inner wall of the chamber is provided with slots for assembling and connecting the guide plates, and the two ends of the guide plates are respectively adapted and positioned on the corresponding slots.

[0018] As a preferred embodiment, an aluminum reflector cup is also provided inside the cavity. The aluminum reflector cup has a hollow cup cavity, and the metal reflective surface is formed on the inner wall surface of the hollow cup cavity. The aluminum reflector cup is located at the upper end of the UV lamp, or the UV lamp is located inside the hollow cup cavity.

[0019] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly achieves self-cooling heat dissipation of the UV sterilization module by designing each component and using a guide to allow the water to enter the heat dissipation channel from the inlet first, so as to transfer the heat generated by the UV sterilization module during use to the water. Then, the water flows out from the other end of the U-shaped heat dissipation channel and enters the sterilization channel. After being sterilized and disinfected by the UV lamp, it flows out from the outlet. This realizes the self-cooling heat dissipation of the UV sterilization module on the device, eliminating the need for an additional heat dissipation device on the box to dissipate heat from the UV sterilization module. With the setting of the heat conduction plate, it is beneficial for the heat of the UV sterilization module to be transferred into the water through the heat conduction plate, improving the heat dissipation effect of the UV sterilization module. The structural design is ingenious and reasonable, reducing the production cost of the product, meeting the user's needs, with a long service life, strong practicality, and wide applicability.

[0020] Secondly, the structure of the UV sterilization module utilizes a three-layer structure of upper plate, middle plate and heat conduction plate to give the UV sterilization module better waterproof and heat dissipation performance, which improves the overall stability of the product. The inclusion of a metal reflective surface prevents damage to the UV sterilization module when the ultraviolet lamp is in use. At the same time, the inclusion of light-transmitting components and metal frame reduces corrosion and damage to the UV sterilization module caused by various UV bands or water, ensuring the stability of the product in use.

[0021] Furthermore, the design of the baffle plate and baffle port allows water to flow in an S-shape within the sterilization channel, thereby extending the sterilization time of the water in the sterilization channel and ensuring that the incoming water is fully purified to achieve a good water purification effect. This, in turn, guarantees the sterilization effect of the water. At the same time, the design of the waterproof pressure strip and metal cover improves the waterproof performance between the connection cable and the wiring terminal of the UV sterilization module, ensuring the power supply and use of the UV sterilization module. The metal cover reduces the corrosion and damage to the wiring terminal by various UV bands or water. Combined with the design of the sealing components, it prevents the water in the chamber from leaking out of the box, thus ensuring the sterilization and disinfection of the water in the chamber.

[0022] Furthermore, the slot design facilitates the assembly and connection of the guide plate on the chamber. Simultaneously, the aluminum reflector enhances the UV lamp's illumination intensity, ensuring effective sterilization of water in the sterilization channel. This results in excellent usability. Additionally, the inclusion of multiple UV sterilization devices allows for configuration based on user needs, thereby improving the product's water purification effect and meeting user requirements, making it highly practical.

[0023] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0024] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0025] Figure 2 This is an exploded view of an embodiment of the present utility model;

[0026] Figure 3 This is a first sectional view of an embodiment of the present utility model;

[0027] Figure 4 This is a second sectional view of an embodiment of the present utility model;

[0028] Figure 5 This is a schematic diagram of the structure of a UV sterilization module according to an embodiment of the present invention;

[0029] Figure 6 This is a cross-sectional view of a UV sterilization module according to an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached diagram:

[0031] 10. Box body 11. Chamber

[0032] 111. Inlet 112. Outlet

[0033] 113. Card slot; 114. Cable inlet hole

[0034] 12. Positioning seat 121. Partition

[0035] 13. Heat dissipation channel 14. Sterilization channel

[0036] 15. Flow guide component 16. Flow guide plate

[0037] 161. Drainage port; 17. Connecting line

[0038] 171. Sealing element; 18. Box body

[0039] 181. Sealing ring; 19. Top cover

[0040] 20. UV sterilization module; 21. Heat conduction plate

[0041] 211. Line layer; 212. Terminal block

[0042] 213. Waterproof strip; 214. Metal cover

[0043] 22. UV lamp 23. Middle layer board

[0044] 231. Cavity 232. Metal membrane

[0045] 24. Upper shelf 241. Opening

[0046] 25. Light-transmitting components; 251. Metal frame

[0047] 26. Aluminum reflector cup; 261. Hollow cup cavity

[0048] 262. Metallic reflective surface. Detailed Implementation

[0049] Please refer to Figures 1 to 6 As shown, it illustrates the specific structure of an embodiment of the present invention. A self-cooling UV sterilization water purification device includes a housing 10 and a UV sterilization module 20, wherein:

[0050] The housing 10 has a chamber 11 with an inlet 111 and an outlet 112. The housing 10 can be made of metal, glass, or other UV-resistant materials. A positioning seat 12 is provided on the chamber 11. The positioning seat 12 is U-shaped and has a partition 121 at its center. The UV sterilization module 20 is mounted on the positioning seat 12 and the partition 121. A heat-conducting plate 21 is provided on one side of the UV sterilization module 20 near the positioning seat and the partition, forming a U-shaped heat dissipation channel 13 between the heat-conducting plate 21, the partition 121, and the positioning seat 12. A sterilization channel 14 is formed between the other side of the UV sterilization module 20 and the chamber 11. The UV sterilization module 20 has a UV lamp 22, the light source of which shines towards the sterilization channel 14. One end of the heat dissipation channel 13 is connected to the inlet 111. A flow guide 15 is provided between the inlet and the sterilization channel 14, with its other end connected to the sterilization channel. This allows the water to enter the heat dissipation channel from the inlet first and then from the other end of the heat dissipation channel into the sterilization channel. In this way, the flow guide allows the water to enter the heat dissipation channel from the inlet first, transferring the heat generated by the UV sterilization module during use to the water. The water then flows out from the other end of the U-shaped heat dissipation channel and into the sterilization channel. After being sterilized by the UV lamp, it flows out from the outlet. This achieves self-cooling heat dissipation of the UV sterilization module on the device, eliminating the need for an additional heat dissipation device on the box to dissipate heat from the UV sterilization module. With the heat-conducting plate, the heat from the UV sterilization module is easily transferred into the water, improving the heat dissipation effect of the UV sterilization module. The structure is ingenious and reasonable, reducing the production cost of the product, meeting the user's needs, with a long service life, strong practicality, and wide applicability.

[0051] In this embodiment, the UV sterilization module 20 includes a middle layer plate 23, an upper layer plate 24, and a light-transmitting element 25. The upper layer plate 24 and the heat-conducting plate 21 are both metal plates. A circuit layer 211 is provided at the upper end of the heat-conducting plate 21. The UV lamp 22 is soldered to the circuit layer 211. The middle layer plate 23 has a cavity 231 that runs vertically through it. The middle layer plate 23 is bonded to the upper end of the heat-conducting plate 21 with high-temperature adhesive. The UV lamp 22 is located inside the cavity 231. A metal reflective surface 262 is provided on the inner wall surface of the cavity 231. The upper layer plate 24 is bonded to the upper end of the middle layer plate 23 with high-temperature adhesive. The upper layer plate 24 has an opening 241 corresponding to the cavity 231. A metal frame 251 is provided at the lower end of the light-transmitting component 25. The metal frame 251 is arranged in a ring around the lower edge of the light-transmitting component. The metal frame 251 is welded and fixed to the upper end of the middle plate 23 to seal the cavity 231. In this way, the structure of the UV sterilization module utilizes a three-layer structure of upper plate, middle plate and heat-conducting plate to give the UV sterilization module better waterproof and heat dissipation performance, improve the overall stability of the product. The setting of the metal reflective surface prevents the UV sterilization module from being damaged by the UV lamp during use. At the same time, the setting of the light-transmitting component and the metal frame reduces the corrosion and damage to the UV sterilization module caused by various UV bands or water, ensuring the stability of the product during use.

[0052] Furthermore, the middle layer 23 is made of metal; or, the middle layer 23 is made of non-metallic material, wherein a metal film 232 is provided on the outer side of the layer 23, and the metal film 232 is made of gold, silver or aluminum. In this way, the metal film enhances the resistance of the outer side of the middle layer to various types of radiation, and also improves the waterproof performance of the UV sterilization module, thereby improving the stability of the product and its usability.

[0053] Furthermore, the heat-conducting plate 21 is a copper plate or an aluminum plate, the upper plate 24 is a copper plate, an aluminum plate, or a gold plate, and the light-transmitting element 25 is a flat glass or a glass convex lens. Preferably, the thickness of the upper plate 24 is less than that of the heat-conducting plate 21. The upper plate 24 and the heat-conducting plate 21 are not limited to being bonded to the middle plate 23 with high-temperature adhesive, but can also be other waterproof adhesives.

[0054] It should be noted that the material of the light-transmitting element 25, whether it is flat glass or a glass convex lens, can be selected according to the light transmittance required by the product to meet the light transmission needs of different types of lamps. The material of the light-transmitting element 25 can be quartz glass, sapphire glass, or ordinary glass, or other glass materials with good light transmission. Meanwhile, the metal frame 251 is made of gold, silver, or copper, and the metal frame is set at the lower edge of the light-transmitting element 25 by high-temperature sintering.

[0055] Furthermore, the sterilization channel 14 is provided with several spaced guide plates 16, which are located between the inlet 111 and the outlet 112. The UV sterilization module 20 is located below the guide plates 16. The guide plates 16 are provided with guide ports 161. In two adjacent guide plates 161, the guide port 161 of one guide plate 16 is located at the front section of the guide plate 16, and the guide port 161 of the other guide plate 16 is located at the rear section of the guide plate 16, so that the water flows into the sterilization channel in an S-shape after passing through the guide plates. In this way, the arrangement of the guide plates and guide ports makes the water flow in an S-shape inside the sterilization channel, thereby prolonging the sterilization and disinfection time of the water in the sterilization channel, so that the incoming water is fully purified, thereby achieving a good water purification effect and ensuring the sterilization and disinfection effect of the water.

[0056] Preferably, the guide plate 16 is a glass light-transmitting guide plate, which is made of ordinary glass, quartz glass, or sapphire glass. In this way, the light-transmitting guide plate, combined with the material of quartz glass or sapphire glass, can transmit various UV wavelengths, so that the light emitted by the UV lamp can also be irradiated to other areas through the adjacent guide plate. While guiding the flow, it allows the UV light to irradiate a wider area and surface, thereby achieving a higher sterilization effect and improving the water purification effect of the product.

[0057] Preferably, the inner wall of the chamber 11 is provided with a slot 113 for assembling and connecting the guide plate. The two ends of the guide plate 16 are respectively adapted and positioned on the corresponding slot 113. In this way, the guide plate can be assembled and connected on the sterilization chamber, which improves the production efficiency of the product, and the operation is simple and the assembly is convenient.

[0058] Furthermore, one UV sterilization module 20 is provided, one positioning seat 12 is provided and disposed on the lower end surface of the chamber 11, and the UV sterilization module 20 is disposed on the upper end of the positioning seat 12.

[0059] Alternatively, two UV sterilization modules 20 may be provided, and correspondingly, two positioning seats 12 may be provided and symmetrically arranged on the two end faces of the chamber 11, with the two UV sterilization modules 20 respectively mounted on the two positioning seats 12.

[0060] Alternatively, four UV sterilization modules 20 may be provided, and four positioning seats 12 may be provided and respectively located on the upper end face, lower end face, front end face, and rear end face of the chamber 11. The four UV sterilization modules 20 may be respectively located on the four positioning seats 12 and arranged opposite to the UV sterilization modules on the corresponding sides. It should be noted that the box body in this utility model is illustrated by a rectangular shape, but the shape of the box body is not limited to a rectangular structure. It can also be a circular or other shapes. Furthermore, the number of UV sterilization modules can be configured according to the shape of the box body.

[0061] Thus, by configuring an appropriate number of UV sterilization devices according to the user's needs, the water purification effect of the product is improved, meeting the user's needs and making it highly practical.

[0062] Furthermore, the heat-conducting plate 21 is provided with a wiring terminal 212, and the outer side of the box body 10 is provided with a wire inlet hole 114 and a connecting wire 17. One end of the connecting wire 17 enters the chamber 11 through the wire inlet hole 114 and is connected to the wiring terminal 212. A waterproof pressure strip 213 is provided on the outer side of the wiring terminal 212 and the connecting wire 17. A metal cover 214 is provided on the outer side of the waterproof pressure strip 213. Preferably, the waterproof pressure strip 213 is made of plastic. A sealing element 171 is provided between the outer side of the wire inlet hole 114 and the surface of the connecting wire 17. In this way, the setting of the waterproof pressure strip improves the waterproof performance between the wiring terminal of the connecting wire and the lamp board, ensuring the power supply of the lamp board. Combined with the setting of the sealing element, it prevents the water in the sterilization chamber from seeping out of the box body, thereby ensuring the sterilization and disinfection of the water in the sterilization chamber.

[0063] Furthermore, an aluminum reflector cup 26 is also provided inside the cavity 231. The aluminum reflector cup 26 has a hollow cup cavity 261, and the metal reflective surface 262 is formed on the inner wall surface of the hollow cup cavity 261. The aluminum reflector cup 26 is located at the upper end of the UV lamp 22, or the UV lamp 22 is located inside the hollow cup cavity 261. Preferably, the aluminum reflector cup 26 is an aluminum reflector cup made of aluminum material; or, the aluminum reflector cup 26 has a cup body made of plastic material, and the outer surface of the cup body and the inner wall surface of the hollow cup cavity are both provided with an aluminum layer by electroplating. In this way, the setting of the aluminum reflector cup improves the light intensity of the UV lamp, ensures the sterilization and disinfection effect of water in the sterilization channel, and has good usability.

[0064] Preferably, the box body 10 includes a box body 18 and a top cover 19. The top cover 19 is fixed to the upper end of the box body 18 by fasteners. The cavity 11 is formed in the area enclosed by the box body 18 and the top cover 19. A sealing ring 181 is provided between the top cover 19 and the box body 18.

[0065] The key design feature of this invention lies in its component design. By utilizing a guide component, water first enters the heat dissipation channel from the inlet, transferring the heat generated by the UV sterilization module during operation to the water. The water then flows out from the other end of the U-shaped heat dissipation channel and into the sterilization channel, where it is sterilized by the UV lamp before exiting from the outlet. This achieves self-cooling heat dissipation for the UV sterilization module, eliminating the need for an additional heat dissipation device on the casing. Combined with the heat-conducting plate, the heat from the UV sterilization module is effectively transferred into the water, improving its heat dissipation effect. The ingenious and reasonable structural design reduces production costs, meets user needs, has a long service life, is highly practical, and has a wide range of applications.

[0066] Secondly, the structure of the UV sterilization module utilizes a three-layer structure of upper plate, middle plate and heat conduction plate to give the UV sterilization module better waterproof and heat dissipation performance, which improves the overall stability of the product. The inclusion of a metal reflective surface prevents damage to the UV sterilization module when the ultraviolet lamp is in use. At the same time, the inclusion of light-transmitting components and metal frame reduces corrosion and damage to the UV sterilization module caused by various UV bands or water, ensuring the stability of the product in use.

[0067] Furthermore, the design of the baffle plate and baffle port allows water to flow in an S-shape within the sterilization channel, thereby extending the sterilization time of the water in the sterilization channel and ensuring that the incoming water is fully purified to achieve a good water purification effect. This, in turn, guarantees the sterilization effect of the water. At the same time, the design of the waterproof pressure strip and metal cover improves the waterproof performance between the connection cable and the wiring terminal of the UV sterilization module, ensuring the power supply and use of the UV sterilization module. The metal cover reduces the corrosion and damage to the wiring terminal by various UV bands or water. Combined with the design of the sealing components, it prevents the water in the chamber from leaking out of the box, thus ensuring the sterilization and disinfection of the water in the chamber.

[0068] Furthermore, the slot design facilitates the assembly and connection of the guide plate on the chamber. Simultaneously, the aluminum reflector enhances the UV lamp's illumination intensity, ensuring effective sterilization of water in the sterilization channel. This results in excellent usability. Additionally, the inclusion of multiple UV sterilization devices allows for configuration based on user needs, thereby improving the product's water purification effect and meeting user requirements, making it highly practical.

[0069] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A self-cooling UV sterilization water purification device, characterized in that: The device includes a housing and a UV sterilization module. The housing has a chamber with an inlet and an outlet. A positioning seat, which is U-shaped, is provided on the chamber. A partition is located at the center of the positioning seat. The UV sterilization module is mounted on the positioning seat and the partition. A heat-conducting plate is provided on one side of the UV sterilization module near the positioning seat and the partition, forming a U-shaped heat dissipation channel between the heat-conducting plate, the partition, and the positioning seat. A sterilization channel is formed between the other side of the UV sterilization module and the chamber. The UV sterilization module has a UV lamp, the light source of which shines towards the sterilization channel. A flow guide is provided between one end of the heat dissipation channel and the inlet, and the other end of the heat dissipation channel is connected to the sterilization channel, so that the water first enters the heat dissipation channel from the inlet and then enters the sterilization channel from the other end of the heat dissipation channel.

2. The self-cooling UV sterilization water purifier according to claim 1, characterized in that: The UV sterilization module includes a middle layer plate, an upper layer plate, and a light-transmitting component. The upper layer plate and the heat-conducting plate are both metal plates. A circuit layer is provided on the upper end of the heat-conducting plate, and the UV lamp is soldered onto the circuit layer. The middle layer plate has a through cavity running vertically. The middle layer plate is bonded to the upper end of the heat-conducting plate with high-temperature adhesive. The UV lamp is located inside the cavity. A metal reflective surface is provided on the inner wall of the cavity. The upper layer plate is bonded to the upper end of the middle layer plate with high-temperature adhesive, and the upper layer plate has an opening corresponding to the cavity. A metal frame is provided at the lower end of the light-transmitting component. The metal frame is arranged in a ring around the lower edge of the light-transmitting component. The metal frame is welded and fixed to the upper end of the middle layer plate to close the cavity.

3. The self-cooling UV sterilization water purifier according to claim 1, characterized in that: The sterilization channel is provided with several spaced guide plates, which are located between the inlet and outlet. The UV sterilization module is located on the lower side of the guide plates. The guide plates are provided with guide ports. In two adjacent guide plates, the guide port of one guide plate is located at the front section of the guide plate, and the guide port of the other guide plate is located at the rear section of the guide plate, so that the water flows into the sterilization channel and then flows through the guide plates in an S-shape.

4. The self-cooling UV sterilization water purifier according to claim 3, characterized in that: The guide plate is a glass light-transmitting guide plate.

5. The self-cooling UV sterilization water purifier according to claim 1, characterized in that: One UV sterilization module is provided, one positioning seat is provided and is located on the lower end surface of the chamber, and the UV sterilization module is located on the upper end of the positioning seat; Alternatively, two UV sterilization modules may be provided, and correspondingly, two positioning seats may be provided and symmetrically arranged on the two end faces of the chamber, with the two UV sterilization modules respectively mounted on the two positioning seats; Alternatively, four UV sterilization modules are provided, and four positioning seats are provided and respectively located on the upper end face, lower end face, front end face, and rear end face of the chamber. The four UV sterilization modules are respectively located on the four positioning seats and are arranged opposite to the UV sterilization modules on the corresponding sides.

6. The self-cooling UV sterilization water purification device according to claim 2, characterized in that: The heat-conducting plate is provided with a terminal block, the outer side of the box is provided with a wire inlet hole, and a connecting wire is also provided. One end of the connecting wire enters the chamber through the wire inlet hole and is connected to the terminal block. A waterproof pressure strip is provided on the outer side of the terminal block and the connecting wire, and a metal cover is provided on the outer side of the waterproof pressure strip.

7. The self-cooling UV sterilization water purification device according to claim 6, characterized in that: The waterproof strip is made of plastic.

8. The self-cooling UV sterilization water purification device according to claim 6, characterized in that: A seal is provided between the outer side of the inlet hole and the surface of the connecting wire.

9. A self-cooling UV sterilization and water purification device according to claim 2, characterized in that: The inner wall of the chamber is provided with slots for assembling and connecting the guide plates, and the two ends of the guide plates are respectively adapted and positioned on the corresponding slots.

10. A self-cooling UV sterilization water purification device according to claim 2, characterized in that: An aluminum reflector cup is also provided inside the cavity. The aluminum reflector cup has a hollow cup cavity. The metal reflective surface is formed on the inner wall surface of the hollow cup cavity. The aluminum reflector cup is located at the upper end of the UV lamp, or the UV lamp is located inside the hollow cup cavity.

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