Ultraviolet sterilization device

Abstract

The utility model relates to the technical field of sterilization instruments, in particular to an ultraviolet sterilization device which comprises a protective shell, a circuit board, a sterilization module, an inner protective cover and an outer protective cover, the protective shell is provided with an installation cavity, one end of the circuit board is installed in the installation cavity, the other end of the circuit board extends out of the installation cavity, and the sterilization module comprises an LED sterilization lamp. The LED sterilization lamp generates deep ultraviolet rays under the power supply of the circuit board, so that the sterilization work of equipment such as a washing machine can be carried out, the inner protective cover and the outer protective cover are arranged on the protective shell and can provide double-layer protection for the sterilization module, the water resistance and protection of the sterilization module are improved, and due to the fact that the sterilization module is further provided with the illuminating lamp, the illumination effect is good. The illuminating lamp provides illumination for the interior of equipment such as the washing machine under the power supply of the circuit board, so that the condition of clothes in the washing machine can be clearly observed in the sterilization process, and inconvenience is provided for the sterilization work of the ultraviolet sterilization device.

Description

Technical Field

[0001] The utility model relates to the technical field of sterilization instruments, in particular to an ultraviolet sterilization device. Background Art

[0002] The ultraviolet sterilization device sterilizes based on deep ultraviolet LEDs (250 nm < λ < 285 nm) of AlGaN, mainly by irradiating ultraviolet rays to destroy and terminate the DNA replication process of bacteria, spores and viruses, so as to effectively inhibit the reproduction of bacteria. Moreover, the area of a single chip is small, which is convenient for flexible design and is often used for sterilization of equipment such as washing machines, dryers and dryer drums.

[0003] For example, a new type of deep ultraviolet sterilization LED lamp for a drum washing machine disclosed in the patent document with the publication number of CN209816510U. The sterilization LED lamp includes a glass cover, a housing, a PCB board, a deep ultraviolet LED sterilization lamp, a power board and a wire connector assembly. The deep ultraviolet LED sterilization lamp is arranged inside the glass cover, the PCB board and the power board are arranged in the housing. The bottom of the deep ultraviolet LED sterilization lamp is connected to the PCB board by reflow soldering. The power board is electrically connected to the PCB board through wires, and the wire connector assembly is connected to the power board through wires and supplies power to the deep ultraviolet LED sterilization lamp, so that the deep ultraviolet LED sterilization lamp generates ultraviolet light to realize the sterilization of the washing machine.

[0004] Although the deep ultraviolet sterilization LED lamp can facilitate the sterilization of the washing machine, due to the low light intensity of the LED sterilization lamp, it is difficult to clearly observe the situation of the clothes inside the washing machine during the sterilization process, which causes inconvenience to the sterilization work. Summary of the Utility Model

[0005] In view of this, it is necessary to provide an ultraviolet sterilization device to solve the technical problem of the low light intensity of the existing ultraviolet sterilization device.

[0006] To achieve the above technical purpose, the technical solution of the utility model provides an ultraviolet sterilization device, including:

[0007] A protective shell; provided with an installation cavity;

[0008] A circuit board, one end of which is installed in the installation cavity and the other end extends out of the installation cavity;

[0009] A sterilization module, including an LED sterilization lamp and a lighting lamp, both of which are installed at the end of the circuit board extending out of the installation cavity;

[0010] An inner protective cover, installed on the protective shell and enclosing the end of the circuit board extending out of the installation cavity; and

[0011] The outer protective cover is installed on the protective shell and encloses the inner protective cover.

[0012] In some embodiments, a first annular mounting groove is provided at the end of the protective shell, and the outer protective cover is sleeved on the first annular mounting groove and fits against the bottom wall of the annular mounting groove.

[0013] In some embodiments, the sterilization device further includes a sealing ring. A sealing groove is provided on the bottom wall of the first annular mounting groove, and the sealing ring is installed in the sealing groove and is in sealing fit with the inner side of the outer protective cover.

[0014] In some embodiments, a glue groove is further provided on the bottom wall of the first annular mounting groove, and the glue groove is used for filling glue.

[0015] In some embodiments, a connection groove is further provided on the surface of the protective shell, and the connection groove communicates with the glue groove.

[0016] In some embodiments, a second annular mounting groove is provided at one end of the first annular mounting groove close to the sterilization module, and the inner protective cover is sleeved on the second annular mounting groove.

[0017] In some embodiments, a limiting groove is provided on the side wall of the installation cavity, and both sides of the circuit board are installed in the limiting groove.

[0018] In some embodiments, the protective shell includes a shell body and an end cover, and the end cover is detachably fixed to one end of the shell body away from the sterilization module.

[0019] In some embodiments, a clamping protrusion is provided at one end of the shell body away from the sterilization module, and the end cover is provided with a clamping buckle, and the clamping buckle is clamped on the clamping protrusion.

[0020] In some embodiments, a fixing groove is provided inside the end cover, and one end of the circuit board away from the sterilization module is inserted into the fixing groove.

[0021] Compared with the prior art, the beneficial effects of the ultraviolet sterilization device of the present utility model include: the sterilization device is provided with a protective shell, a circuit board, a sterilization module, an inner protective cover and an outer protective cover. The protective shell is provided with an installation cavity. One end of the circuit board is installed in the installation cavity, and the other end of the circuit board extends out of the installation cavity. The sterilization module includes an LED sterilization lamp, and the LED sterilization lamp generates deep ultraviolet rays under the power supply of the circuit board, so as to carry out the sterilization work of equipment such as washing machines. The inner protective cover and the outer protective cover are installed on the protective shell, which can provide double protection for the sterilization module and improve the waterproof and protection of the sterilization module. Since the sterilization module is also provided with a lighting lamp, the lighting lamp provides illumination for the inside of equipment such as washing machines under the power supply of the circuit board. Therefore, during the sterilization process, the situation of the clothes inside the washing machine can be clearly observed, which provides inconvenience for the sterilization work of the ultraviolet sterilization device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the ultraviolet sterilization device provided by an embodiment of the present utility model;

[0023] Figure 2 is a top view of the ultraviolet sterilization device provided by an embodiment of the present utility model;

[0024] Figure 3 is along Figure 2 the sectional view taken along line A-A in

[0025] Figure 4 is an exploded view of the ultraviolet sterilization device provided by an embodiment of the present utility model.

[0026] Among them, each reference numeral in the figure:

[0027] 10 - protective shell, 11 - installation cavity, 12 - housing

[0028] 13 - end cover, 14 - first annular installation groove, 15 - connection groove

[0029] 20 - circuit board, 30 - sterilization module, 31 - LED sterilization lamp

[0030] 32 - lighting lamp, 40 - inner protective cover, 50 - outer protective cover

[0031] 60 - sealing ring, 111 - limiting groove, 121 - clamping protrusion

[0032] 122 - limiting protrusion, 131 - buckle, 132 - fixing groove

[0033] 141 - glue groove, 142 - sealing groove, 143 - second annular installation groove

[0034] 10a - glue. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The preferred embodiments of the present utility model will be specifically described below in conjunction with the accompanying drawings. The accompanying drawings form a part of this application and are used together with the embodiments of the present utility model to explain the principle of the present utility model, and are not used to limit the scope of the present utility model.

[0036] An ultraviolet sterilization device is provided in an embodiment of the present utility model. By providing an additional lighting device, the sterilization device can provide additional lighting during the sterilization process, thereby solving the technical problem that the light intensity of the ultraviolet sterilization device is relatively low, which causes inconvenience to the sterilization of the sterilization device.

[0037] The ultraviolet sterilization device of this embodiment includes a protective shell 10, a circuit board 20, a sterilization module 30, an inner protective cover 40, and an outer protective cover 50. The protective shell 10 is provided with an installation cavity 11; one end of the circuit board 20 is installed in the installation cavity 11, and the other end of the circuit board 20 extends out of the installation cavity 11; the sterilization module 30 includes an LED sterilization lamp 31 and a lighting lamp 32, and both the LED sterilization lamp 31 and the lighting lamp 32 are installed at the end of the circuit board 20 extending out of the installation cavity 11; the inner protective cover 40 is installed on the protective shell 10 and encloses the end of the circuit board 20 extending out of the installation cavity 11; the outer protective cover 50 is installed on the protective shell 10 and encloses the inner protective cover 40.

[0038] Specifically, the sterilization device is provided with a protective shell 10, a circuit board 20, a sterilization module 30, an inner protective cover 40, and an outer protective cover 50. The protective shell 10 is provided with an installation cavity 11. One end of the circuit board 20 is installed in the installation cavity 11, and the other end of the circuit board 20 extends out of the installation cavity 11. The sterilization module 30 includes an LED sterilization lamp 31. The LED sterilization lamp 31 generates deep ultraviolet rays under the power supply of the circuit board 20, so as to perform sterilization work on devices such as washing machines. The inner protective cover 40 and the outer protective cover 50 are installed on the protective shell 10, which can provide double-layer protection for the sterilization module 30 and improve the waterproof and protection of the sterilization module 30. Since the sterilization module 30 is also provided with a lighting lamp 32, the lighting lamp 32 provides lighting for the inside of devices such as washing machines under the power supply of the circuit board 20. Thus, during the sterilization process, the situation of the clothes inside the washing machine can be clearly observed, which provides inconvenience for the sterilization work of the ultraviolet sterilization device.

[0039] It can be understood that the protective shell 10 can be any structure that can provide installation for the circuit board 20.

[0040] In one of the embodiments, the protective shell 10 includes a housing 12 and an end cover 13. The end cover 13 is detachably fixed to one end of the housing 12 away from the sterilization module 30. Specifically, the housing 12 and the end cover 13 form an installation shell by enclosing. When the circuit board 20 needs to be disassembled, only the end cover 13 needs to be disassembled, and then the circuit board 20 can be disassembled, which provides convenience for the maintenance and replacement of the circuit board 20.

[0041] It can be understood that the end cover 13 can be detachably fixed to the housing 12 in forms such as threaded connection with the housing 12 or mutual connection through frictional action.

[0042] In one embodiment, a clamping protrusion 121 is provided at one end of the housing 12 away from the sterilization module 30, and a buckle 131 is provided on the end cover 13. The buckle 131 is clamped to the clamping protrusion 121. Specifically, the end cover 13 is detachably fixed to the housing 12 through the clamping of the buckle 131 to the clamping protrusion 121. When disassembling the end cover 13, it is only necessary to disengage the buckle 131 from the clamping with the clamping protrusion 121 to disassemble the end cover 13 from the housing 12.

[0043] In one embodiment, the housing 12 is further provided with a limiting protrusion 122, and the limiting protrusion 122 is located on one side of the clamping protrusion 121. Specifically, the limiting protrusion 122 can block the buckle 131 from further sliding away from the clamping protrusion 121 to limit the buckle 131, thereby realizing the limitation of the end cover 13.

[0044] In one embodiment, a fixing groove 132 is provided inside the end cover 13, and one end of the circuit board 20 away from the sterilization module 30 is inserted into the fixing groove 132. Specifically, the fixing groove 132 can be used for installing the circuit board 20. When assembling the sterilization device, it is only necessary to insert the end of the circuit board 20 into the fixing groove 132 and then install the end cover 13 on the housing 12, which provides convenience for the assembly of the sterilization device and improves the stability of the circuit board 20.

[0045] In one embodiment, a limiting groove 111 is provided on the side wall of the installation cavity 11, and both sides of the circuit board 20 are installed in the limiting groove 111. Specifically, the limiting groove 111 can improve the stability of the circuit board 20 by limiting both sides of the circuit board 20.

[0046] In one embodiment, a first annular installation groove 14 is provided at the end of the protective shell 10, and the outer protective cover 50 is sleeved on the first annular installation groove 14 and fits with the bottom wall of the annular installation groove. Specifically, the outer protective cover can effectively seal the gap between the outer protective cover and the protective shell 10 through the socket connection with the first annular installation groove 14, thereby improving the waterproof performance of the sterilization device.

[0047] In one embodiment, a glue groove 141 is further provided on the bottom wall of the first annular installation groove 14, and the glue groove 141 is used for filling glue 10a. Specifically, before the outer protective shell 10 is sleeved on the first annular installation groove 14, the glue 10a is first filled into the glue groove 141, and then the open end of the outer protective shell 10 is sleeved on the first annular installation groove 14 and bonded through the glue 10a, and the fixation of the outer protective shell 10 can be realized.

[0048] In one embodiment, a connection groove 15 is further provided on the surface of the protective shell 10, and the connection groove 15 communicates with the glue groove 141. Specifically, when fixing the outer protective shell 10, glue 10a can be filled in both the glue groove 141 and the connection groove 15 at the same time. The glue 10a in the glue groove 141 can bond and fix the inner side surface of the outer protective cover 50, and the glue 10a in the connection groove 15 can bond and fix the end surface of the outer protective cover 50, so as to cooperate with the glue 10a in the glue groove 141 to strengthen the fixation of the outer protective cover 50.

[0049] In one embodiment, the sterilization device further includes a sealing ring 60. A sealing groove 142 is provided on the bottom wall of the first annular mounting groove 14. The sealing ring 60 is installed in the sealing groove 142 and is hermetically fitted with the inner side of the outer protective cover 50. Specifically, the sealing ring 60 can seal the gap between the outer protective cover 50 and the first annular mounting groove 14, thereby improving the waterproof performance of the outer protective cover 50.

[0050] In one embodiment, a second annular mounting groove 143 is provided at one end of the first annular mounting groove 14 close to the sterilization module 30. The inner protective cover 40 is sleeved on the second annular mounting groove 143. Specifically, by sleeving the inner protective cover 40 on the second annular mounting groove 143, the gap between the inner protective sleeve and the protective shell 10 can be effectively sealed, and in cooperation with the outer protective sleeve, double-layer protection of the sterilization module 30 can be achieved, further improving the waterproof and protective performance of the sterilization device.

[0051] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. An ultraviolet sterilization device, characterized in that: include: Protective shell; A mounting cavity is provided; A circuit board, one end of which is mounted in the mounting cavity and the other end of which extends out of the mounting cavity; A sterilization module, comprising an LED sterilization lamp and an illumination lamp, wherein the LED sterilization lamp and the illumination lamp are both installed at one end of the circuit board extending out of the installation cavity; An inner protective cover, mounted on the protective shell and enclosing an end of the circuit board extending out of the mounting cavity; and The outer protective cover is installed on the protective shell and surrounds the inner protective cover.

2. The ultraviolet sterilization device according to claim 1, characterized in that: A first annular mounting groove is disposed at the end of the protective shell, and the outer protective cover is sleeved in the first annular mounting groove and fits against the bottom wall of the annular mounting groove.

3. The ultraviolet sterilization device according to claim 2, characterized in that: The sterilization device also includes a sealing ring. The bottom wall of the first annular installation groove is provided with a sealing groove. The sealing ring is installed in the sealing groove and is sealed and fitted with the inner side of the outer protective cover.

4. The ultraviolet sterilization device according to claim 3, characterized in that: The bottom wall of the first annular mounting groove is also provided with a glue groove, and the glue groove is used to fill glue.

5. The ultraviolet sterilization device according to claim 4, characterized in that: The surface of the protective shell is also provided with a connecting groove, and the connecting groove is connected to the glue groove.

6. The ultraviolet sterilization device according to claim 2, characterized in that: A second annular mounting groove is disposed at one end of the first annular mounting groove close to the sterilization module, and the inner protective cover is sleeved in the second annular mounting groove.

7. The ultraviolet disinfection device according to any one of claims 1 to 6, characterized in that: The side wall of the installation cavity is provided with a limiting groove, and the two sides of the circuit board are mounted in the limiting groove.

8. The ultraviolet disinfection device according to any one of claims 1 to 6, characterized in that: The protective shell comprises a shell and an end cover, and the end cover is detachably fixed to an end of the shell away from the sterilization module.

9. The ultraviolet sterilization device according to claim 8, characterized in that: A clamping protrusion is arranged at one end of the shell away from the sterilization module, and a buckle is arranged at the end cover, and the buckle is clamped to the clamping protrusion.

10. The ultraviolet sterilization device according to claim 8, characterized in that: A fixing groove is arranged inside the end cover, and one end of the circuit board away from the sterilization module is inserted into the fixing groove.

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