CN218988899U - UVC LED overflows formula water sterilization device - Google Patents

Abstract

The embodiment of the application provides a UVC LED overflows formula water sterilization device, this UVC LED overflows formula water sterilization device includes: the shell is provided with a containing cavity and a waterway interface, the waterway interface comprises a water inlet and a water outlet, the reflecting cylinders are arranged in the containing cavity, the reflecting cylinders comprise a first reflecting cylinder and a second reflecting cylinder which are mutually communicated, the first reflecting cylinder is communicated with the water inlet, the second reflecting cylinder is communicated with the water outlet, the light source plate is arranged at the bottom of the containing cavity, and the light source plate comprises UVC LEDs; the light-transmitting plate is arranged between the light reflecting cylinder and the light source plate. According to the technical scheme, the length of the reflecting cylinder can be shortened, and then the total volume of the UVC LED overcurrent type water sterilization device is reduced, so that the UVC LED overcurrent type water sterilization device can be applied to small spaces such as a nozzle and a water nozzle, and the application range of the overcurrent type water sterilization device is expanded.

Description

UVC LED overflows formula water sterilization device

Technical Field

The application relates to the technical field of ultraviolet sterilization and disinfection, in particular to a UVC LED overcurrent type water sterilization device.

Background

With the increasing importance of disinfection and sanitation safety problems. The traditional disinfection mode can not meet the demands of people gradually, so that the artificial ultraviolet disinfection bacterial viruses gradually enter the public field of view.

In the past, the UVC lamp tube on the market mainly uses a mercury lamp to emit ultraviolet light for sterilization and disinfection, and because the mercury lamp is high in pollution, many industries are prohibited from using, especially consumer products, so that the artificial deep ultraviolet light source is replaced by a UVC LED light source from the original mercury lamp, and accordingly, in the field of water sterilization, the over-current type sterilization device also needs to use a UVC LED as a light source. However, the over-current water sterilization device using UVC LED as light source in the market has large volume, and has a certain limitation in application in small space (such as nozzle of intelligent toilet and water dispenser nozzle).

It should be noted that the foregoing is not necessarily prior art, and is not intended to limit the scope of the patent protection of the present application.

Disclosure of Invention

The embodiment of the application provides a UVC LED overcurrent type water sterilization device, which aims to solve or relieve one or more technical problems.

As an aspect of the embodiments of the present application, the embodiments of the present application provide a UVC LED overcurrent type water sterilization device, including:

the shell is provided with a containing cavity and a waterway interface, and the waterway interface comprises a water inlet and a water outlet;

the light reflecting barrel is arranged in the accommodating cavity and comprises a first light reflecting barrel and a second light reflecting barrel which are mutually communicated, the first light reflecting barrel is communicated with the water inlet, and the second light reflecting barrel is communicated with the water outlet;

the light source plate is arranged at the bottom of the accommodating cavity and comprises UVC LEDs;

the light transmission plate is arranged between the reflecting cylinder and the light source plate;

wherein the water inlet, the first reflecting cylinder, the second reflecting cylinder and the water outlet form a water flow channel; the deep ultraviolet rays of the UVC LEDs penetrate through the light-transmitting plate and enter the first reflecting cylinder and the second reflecting cylinder; the first and second reflector cylinders sterilize the water flowing therethrough based on the received deep ultraviolet rays.

Optionally, the number of UVC LEDs comprises two;

wherein the luminous axis of one UVC LED is aligned with the axis of the first reflecting cylinder;

the luminous axis of the other UVC LED is aligned with the axis of the second reflecting cylinder.

Optionally, the shell comprises an upper cover and a lower cover, and the upper cover is fixedly connected with the lower cover.

Optionally, a waterproof ring is clamped between the lower cover and the light-transmitting plate.

Optionally, the upper cover is made of a plastic material and the lower cover is made of a thermally conductive plastic material.

Optionally, the light source plate is provided with a through hole;

the lower cover is provided with a wire outlet hole;

the through holes and the wire outlet holes are used for forming paths for the power supply wires of the light source plate to extend out of the shell.

Optionally, the light source board further comprises a circuit board;

the circuit board is used for fixing the UVC LEDs;

the circuit board is positioned in the lower cover, and a heat conducting material is filled between the circuit board and the bottom surface of the lower cover.

Optionally, the upper cover is formed around the reflector tube by injection molding.

Optionally, the UVC LED emits light at an angle of 30-35 degrees.

Optionally, a polished reflecting layer is arranged on the inner wall of the reflecting cylinder;

wherein the polished retroreflective layer is made of retroreflective material comprising: an aluminum alloy material.

The technical scheme adopted by the embodiment of the application can comprise the following advantages:

the two reflecting barrels and the UVC LEDs are used for forming a sterilizing cavity, the UVC LEDs are distributed on the bottom surface of the reflecting barrel, the requirement on the length of the reflecting barrel is reduced, the reflecting barrel is divided into two reflecting barrels, and the length of the reflecting barrel is further shortened, so that under the same water treatment effect, the maximum length and the total volume of the overcurrent type water sterilizing device are obviously reduced, the application of a small space (a nozzle, a water nozzle and the like) of the overcurrent type water sterilizing device is realized, and the application range of the overcurrent type water sterilizing device is expanded.

Drawings

In the drawings, the same reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily drawn to scale. It is appreciated that these drawings depict only some embodiments according to the disclosure and are not therefore to be considered limiting of its scope.

Fig. 1 is a schematic structural diagram of a UVC LED overcurrent water sterilization device according to an embodiment of the present application.

Fig. 2 is an exploded schematic view of a UVC LED over-current water sterilization device according to an embodiment of the present application.

Fig. 3 is an assembly schematic diagram of an upper cover and a lower cover in a UVC LED over-current water sterilization device according to an embodiment of the present application.

Reference numerals illustrate:

an upper cover 1; a waterway interface 11; a threaded hole 12;

a light reflecting cylinder 2;

a waterproof ring 3;

a light-transmitting plate 4;

a light source board 5; UVC LED 51; a circuit board 52; a through hole 53;

a lower cover 6; a wire outlet hole 61; a through hole 62;

a screw 7;

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The following provides a term explanation of the present application.

UVC LED: namely a deep ultraviolet light emitting diode. Similar to the traditional white light LED, the ultraviolet light LED emits invisible deep ultraviolet light, and the light with the wavelength can destroy the DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) molecular structure of microorganisms, so that bacteria die or cannot reproduce, and the aim of sterilization is achieved, and the UVC LED is a novel artificial deep ultraviolet light source.

UVC LED overflows formula water sterilization device: namely, a device for instantaneously sterilizing the flowing water by using a UVC LED as a light source. The water to be disinfected enters from the water inlet, is sterilized in the device by ultraviolet irradiation, then flows out from the water outlet, and the water flow is kept flowing in the device continuously. The advantages are that the sterilization process is very short (second sterilization), the water can not be heated, and toxic and harmful substances can not be introduced, and the method can be widely applied to the scenes of household water purification faucet, direct drinking machine, industrial water sterilization, tap water sterilization and the like.

For the convenience of understanding the technical solutions provided in the embodiments of the present application, the following related technologies are described below:

the inventor finds that the overcurrent type water sterilization device generally uses a reflecting cylinder and a large-angle luminous UVC LED (120 degrees) to form a main sterilization cavity, wherein the UVC LED is distributed on the side surface of the reflecting cylinder, the reflecting cylinder needs to have a certain length in order to fully utilize the illumination of the UVC LED, and the diameter of the reflecting cylinder cannot be too small in order to ensure the normal water flow, so that the conventional overcurrent type water sterilization device is too long in length and too large in volume and cannot be applied to small-space occasions such as nozzles and water nozzles.

Therefore, the embodiment of the application provides a technical scheme of a UVC LED overcurrent type water sterilization device, in the scheme, under the same water treatment effect, the maximum length and the total volume of the overcurrent type water sterilization device are obviously reduced, the application of the overcurrent type water sterilization device in a small space (a nozzle, a water nozzle and the like) is realized, and the application range of the overcurrent type water sterilization device is expanded. See in particular below.

Hereinafter, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these exemplary embodiments may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Fig. 1 shows a schematic structural diagram of a UVC LED over-current water sterilization device according to an embodiment of the present application. As shown in fig. 1, the UVC LED overcurrent water sterilization apparatus may include: the light source comprises a shell, a reflecting cylinder 2, a light source plate 5 and a light-transmitting plate 4.

The shell is provided with a containing cavity and a waterway interface 11, and the waterway interface 11 comprises a water inlet and a water outlet.

The reflecting cylinder 2 is arranged in the accommodating cavity, the reflecting cylinder 2 comprises a first reflecting cylinder and a second reflecting cylinder which are communicated with each other, the first reflecting cylinder is communicated with the water inlet, and the second reflecting cylinder is communicated with the water outlet.

The light source board 5 is arranged at the bottom of the accommodating cavity, and the light source board 5 comprises UVC LEDs 51.

And a light-transmitting plate 4 arranged between the reflecting cylinder 2 and the light source plate 5.

The water inlet, the first reflecting cylinder, the second reflecting cylinder and the water outlet form a water flow channel, deep ultraviolet rays of the UVC LEDs penetrate through the light-transmitting plate and enter the first reflecting cylinder and the second reflecting cylinder, and the first reflecting cylinder and the second reflecting cylinder sterilize flowing water based on the received deep ultraviolet rays.

In this embodiment, the deep ultraviolet rays emitted by the UVC LEDs 51 on the light source board 5 pass through the light-transmitting board 4 and enter the first reflective cylinder and the second reflective cylinder, water enters from the water inlet, enters the first reflective cylinder and the second reflective cylinder which are mutually communicated, the first reflective cylinder and the second reflective cylinder sterilize the water through the irradiation of the deep ultraviolet rays, then the water flows out from the water outlet, the sterilization of the water flowing out from the water outlet is completed, and the water flow is kept flowing in the device continuously. By adopting the device, the reflecting cylinder 2 is divided into two parts, so that the length of the reflecting cylinder 2 is shortened, the maximum length and the total volume of the overcurrent water sterilization device are obviously reduced under the same water treatment effect, and the problem that the overcurrent water sterilization device is difficult to apply in a small space (a nozzle, a water nozzle and the like) is solved.

The reflector 2 is preferably hollow cylindrical in shape, but may be other shapes.

In some embodiments, the number of UVC LEDs 51 includes two, where the light emitting axis of one UVC LED 51 is aligned with the axis of the first reflector and the light emitting axis of the other UVC LED 51 is aligned with the axis of the second reflector.

In this embodiment, referring to fig. 1, the luminous axes of the two UVC LEDs 51 are respectively overlapped with the luminous axes of the two reflective cylinders 2, so that the utilization efficiency of deep ultraviolet light can be improved.

In some embodiments, the housing includes an upper cover 1 and a lower cover 6, and the upper cover 1 is fixedly connected with the lower cover 6.

In this embodiment, the upper cover 1 and the lower cover 6 are fastened and fixed by using screws 7, and form a housing together, so as to provide protection and structural support for the internal components.

In other embodiments, the upper cover 1 and the lower cover 6 may be connected and fixed by other manners, for example: snap fit, welding, etc.

In some embodiments, the UVC LED over-current water sterilization device further comprises: the waterproof ring 3, waterproof ring 3 centre gripping be in lower cover 6 with the light-transmitting board 4 between.

In this embodiment, referring to fig. 1-2, a waterproof ring 3 is sandwiched between the light-transmitting plate 4 and the lower cover 6, so as to play a role in waterproof.

In some embodiments, the upper cover 1 is made of a plastic material and the lower cover 6 is made of a thermally conductive plastic material.

In this embodiment, referring to fig. 2, the upper cover 1 is made of plastic material, so as to reduce cost. The lower cover 6 is made of a heat-conducting plastic material, so that heat of the light source plate 5 is conducted to the outside air through the lower cover 6, and the heat conduction effect is achieved.

In some embodiments, the light source board 5 is provided with a through hole 53, and the lower cover 6 is provided with a wire outlet hole 61, wherein the through hole 53 and the wire outlet hole 61 are used for forming a path for the power supply wire of the light source board 5 to extend out of the housing.

In this embodiment, referring to fig. 1-3, the through hole 53 and the wire outlet hole 61 form a path, and the power supply wire of the light source board 5 extends to the outside of the device through the path, so as to be conveniently connected with an external power supply, so that after the light source board 5 is electrified, deep ultraviolet light required for sterilization is provided for the whole device.

In some embodiments, the light source board 5 further includes a circuit board 52, the circuit board 52 is used for fixing the UVC LEDs 51, the circuit board 52 is located in the lower cover 6, and a heat conductive material is filled between the circuit board 52 and the bottom surface of the lower cover 6.

In this embodiment, referring to fig. 1-3, uvc LEDs 51 are mounted on the circuit board 52 and electrically connected to the circuit board 52 to provide deep ultraviolet light required for sterilization of the entire device. The circuit board 52 is located in the lower cover 6, a heat conducting material is filled between the circuit board 52 and the bottom surface of the lower cover 6, the heat conducting material comprises a heat conducting adhesive tape and the like, and the heat conducting material can play roles in fixing and heat conducting.

In some embodiments, the upper cover 1 is injection molded around the reflector 2 using an injection molding process.

In this embodiment, referring to fig. 1-2, the reflector 2 is used as an insert, and a layer of plastic shell is injection molded around the reflector 2 by injection molding process to obtain the upper cover 1, so that the assembly process is simplified and the cost is reduced while the product performance is ensured.

In some embodiments, the UVC LED 51 emits light at an angle of 30-35 degrees.

In this embodiment, the UVC LED 51 adopts a package form with a light emitting angle of 30-35 degrees, so that the utilization efficiency of deep ultraviolet light can be effectively improved.

In some embodiments, the inner wall of the reflector cylinder 2 is provided with a polished light reflecting layer, wherein the polished light reflecting layer is made of a light reflecting material comprising: an aluminum alloy material.

In this embodiment, referring to fig. 1-2, a polished reflective layer is disposed on the inner wall of the reflective cylinder 2, and an aluminum alloy material is used, so that the high UVC reflection efficiency is ensured, and the cost performance of the material is improved.

An example of the UVC LED overcurrent water sterilization device of the present application is described below in exemplary connection with fig. 1-3.

(1) The upper cover 1 functions to form a housing together with the lower cover 6 to provide protection and structural support for the internal components.

The upper cover 1 comprises two waterway interfaces 11, any one of the two waterway interfaces 11 can be used as a water inlet or a water outlet, water to be treated flows into the device from one waterway interface 11, and after being sterilized by deep ultraviolet rays, flows out of the device from the other waterway interface 11.

The main function of the lower cover 6 is to provide structural support for the waterproof ring 3, the light-transmitting plate 4 and the light source plate 5.

The lower cover 6 includes a wire outlet hole 61, and a power supply wire welded on the light source plate 5 extends to the outside of the device through a path formed by the through hole 53 and the wire outlet hole 61, thereby being convenient to be connected with an external power supply. In order to meet the requirements of water resistance and dust resistance, the wire outlet hole 61 can be sealed by using electronic pouring sealant.

The lower cover 6 is formed by injection molding of a heat-conducting plastic material, the lower cover 6 is in contact with the light source plate 5, heat is conducted into the outside air, and cost is reduced.

In this embodiment, the upper cover 1 and the lower cover 6 are fixed by screws, and the screws 7 are connected to the screw holes 12 through the through holes 62. In addition, the upper cover 1 and the lower cover 6 may be fixedly connected by fastening, welding, or the like.

(2) The reflecting cylinder 2 comprises a first reflecting cylinder and a second reflecting cylinder which are communicated with each other, and the main function is to form a light reflecting cavity and improve the utilization rate of deep ultraviolet light.

The reflector cylinder 2 is required to be made of a reflector material which is efficient in UVC reflection and high in cost performance, and in this embodiment, the reflector cylinder is made of an aluminum alloy material with a polished inner wall, so that the cost is reduced.

The reflecting cylinder is used as an inlay, a layer of plastic shell is externally injection-molded through an injection molding process, so that the assembly process is simplified while the product performance is ensured, and the cost is reduced.

(3) The light source board 5 is used for providing deep ultraviolet light required for sterilization for the whole device after being electrified.

The light source board 5 may be composed of UVC LEDs 51 and a circuit board 52.

The UVC LED 51 has the luminous wavelength of 200-280nm and is composed of single or multiple packaged UVC LED lamp beads. The UVC LED 51 is fixed to the circuit board 52 by solder paste and ensures electrical connection.

In this embodiment, the UVC LEDs 51 adopt a package form with a light emitting angle of 30-35 degrees, and the number of UVC LEDs is two, and the light emitting axes coincide with the axes of the light reflecting barrel 2, so that the utilization efficiency of deep ultraviolet light can be improved to the greatest extent.

The circuit board 52 is a printed circuit board whose base material is metal, and the base material may be aluminum or copper. The circuit board can also be a circuit board with ceramic as a base material, such as aluminum nitride, aluminum oxide ceramic and the like. The contact surface of the circuit board 52 and the lower cover 6 is filled with a viscous heat conductive material (heat conductive paste, etc.), and functions as fixing and heat conduction.

(4) The light-transmitting plate 4 serves to protect the internal structure (dust-proof and waterproof) and also needs to have good transmittance to deep ultraviolet rays. The light-transmitting plate 4 may be made of quartz glass, sapphire glass, fluorine-based resin, or the like, but is not limited to the above materials.

The waterproof ring 3 is clamped between the light-transmitting plate 4 and the lower cover 6, so that the waterproof effect is achieved.

In this embodiment, two reflective cylinders 2 are used to form a light reflective cavity, and the UVC LEDs 51 emitting light at a small angle are distributed on the bottom surface of the reflective cylinder 2, so that the requirement on the length of the reflective cylinder is reduced, the reflective cylinder is divided into two parts, and the length of the reflective cylinder is further shortened, so that under the same water treatment effect, the maximum length and the total volume of the overcurrent water sterilization device are obviously reduced, and the problem that the overcurrent water sterilization device is difficult to apply in a small space (a nozzle, a water nozzle and the like) is solved.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: the sterilization cavity is formed by the two light reflecting cylinders and the UVC LEDs with small angles (30-35 degrees), the UVC LEDs with small angles are distributed on the bottom surface of the light reflecting cylinder, the requirement on the length of the light reflecting cylinder is reduced, the light reflecting cylinder is divided into two parts, the length of the light reflecting cylinder is further shortened, the maximum length and the total volume of the overcurrent type water sterilization device are obviously reduced under the same water treatment effect, the application of a small space (a nozzle, a water nozzle and the like) of the overcurrent type water sterilization device is realized, and the application range of the overcurrent type water sterilization device is expanded.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

For ease of description, directional terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal" and "top, bottom" etc. refer to a direction or positional relationship generally based on that shown in the drawings, and merely for convenience of description and simplicity of description, these directional terms do not indicate or imply that the apparatus or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly, as they may be fixed, removable, or integral, for example; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

Unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both first and second features being in direct contact, and may also include both first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

It should also be noted that references in the specification to "one embodiment," "another embodiment," "an embodiment," etc., indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the utility model as set forth in connection with other embodiments.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

It should be further noted that the foregoing is only a preferred embodiment of the present application, and is not intended to limit the scope of the patent protection of the present application, and all equivalent structures or equivalent process changes made by the content of the present application and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the patent protection of the present application.

Claims (10)

1. A UVC LED overcurrent water sterilization device, comprising:

the shell is provided with a containing cavity and a waterway interface (11), and the waterway interface (11) comprises a water inlet and a water outlet;

the light reflecting barrel (2) is arranged in the accommodating cavity, the light reflecting barrel (2) comprises a first light reflecting barrel and a second light reflecting barrel which are communicated with each other, the first light reflecting barrel is communicated with the water inlet, and the second light reflecting barrel is communicated with the water outlet;

the light source plate (5) is arranged at the bottom of the accommodating cavity, and the light source plate (5) comprises UVC LEDs (51);

a light-transmitting plate (4) arranged between the light-reflecting cylinder (2) and the light source plate (5);

wherein the water inlet, the first reflecting cylinder, the second reflecting cylinder and the water outlet form a water flow channel; deep ultraviolet rays of the UVC LEDs (51) penetrate through the light-transmitting plate (4) and enter the first reflecting cylinder and the second reflecting cylinder; the first and second reflector cylinders sterilize the water flowing therethrough based on the received deep ultraviolet rays.

2. UVC LED over-current water sterilization device according to claim 1, characterized in that the number of UVC LEDs (51) comprises two;

wherein the luminous axis of one UVC LED (51) is aligned with the axis of the first reflecting cylinder;

the luminous axis of the other UVC LED (51) is aligned with the axis of the second reflecting cylinder.

3. The UVC LED over-current type water sterilization device according to claim 1, wherein,

the shell comprises an upper cover (1) and a lower cover (6), and the upper cover (1) is fixedly connected with the lower cover (6).

4. The UVC LED overcurrent water sterilization device of claim 3, further comprising:

the waterproof ring (3), waterproof ring (3) centre gripping be in lower cover (6) with light-transmitting plate (4).

5. The UVC LED over-current type water sterilization device according to claim 3, wherein,

the upper cover (1) is made of plastic material, and the lower cover (6) is made of heat-conducting plastic material.

6. A UVC LED overcurrent water sterilization device according to claim 3, wherein:

the light source plate (5) is provided with a through hole (53);

the lower cover (6) is provided with a wire outlet hole (61);

wherein the through hole (53) and the wire outlet hole (61) are used for forming a path for the power supply wire of the light source plate (5) to extend out of the shell.

7. A UVC LED overcurrent water sterilization device according to claim 3, characterized in that the light source board (5) further comprises a circuit board (52);

the circuit board (52) is used for fixing the UVC LEDs (51);

the circuit board (52) is positioned in the lower cover (6), and a heat conducting material is filled between the circuit board (52) and the bottom surface of the lower cover (6).

8. The UVC LED over-current type water sterilization device according to claim 3, wherein,

the upper cover (1) is formed by injection molding around the reflecting cylinder (2) by adopting an injection molding process.

9. The UVC LED over-current type water sterilization device according to claim 1, wherein,

the luminous angle of the UVC LED (51) is 30-35 degrees.

10. The UVC LED over-current type water sterilization device according to claim 1, wherein,

the inner wall of the reflecting cylinder (2) is provided with a polished reflecting layer;

wherein the polished retroreflective layer is made of retroreflective material comprising: an aluminum alloy material.

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