Small UVC germicidal lamp

Abstract

The small UVC germicidal lamp comprises a transparent tube, an insulating substrate, a UVC wafer, a sealing plug and a power line, the transparent tube is of a hollow structure with one end open and the other end closed, and the insulating substrate is fixedly installed in the hollow interior of the transparent tube through the sealing plug. The sealing plug is fixedly connected to the opening position of the transparent tube so as to seal the opening of the transparent tube, the UVC wafers are uniformly and fixedly connected to the PCB circuits on the front face and the back face of the insulating substrate respectively, and one end of the power line can penetrate through the sealing plug and then is electrically connected with the PCB circuits on the insulating substrate. The utility model has the advantages of small size, large radiation angle, good sterilization effect, suitability for long-term work in static water, no color change and the like, and is particularly suitable for small-sized medical beauty sterilization equipment or household small-sized sterilization electric appliances.

Description

Technical Field

[0001] This utility model relates to the field of ultraviolet lamp technology, and more specifically, to a small UVC germicidal lamp. Background Technology

[0002] Currently, UVC germicidal lamps on the market are mainly divided into two categories: low-pressure mercury lamp UV germicidal lamps and UVC diode chip integrated sterilizers. Low-pressure mercury lamp UV sterilization uses ultraviolet light generated by a low-pressure electric arc to kill microorganisms. Low-pressure mercury lamps emit 246nm ultraviolet light through mercury vapor discharge. This wavelength has extremely strong sterilization capabilities. It generates a lot of heat during operation, making it suitable for large-area sterilization. However, it is large and heavy, and cannot be directly exposed to the eyes and skin. UVC diode chip integrated sterilizers use ultraviolet light emitted by UVC LED diodes for sterilization. The radiation angle is smaller (usually less than 180 degrees), the size is larger, the manufacturing cost is higher, and it is not convenient for the design and use of current micro-miniature sterilization products. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a small UVC germicidal lamp that is small in size, has a large radiation angle, good sterilization effect, is suitable for long-term operation in static water, and does not change color.

[0004] To achieve the above objectives, this utility model provides a small UVC germicidal lamp, including a transparent tube, an insulating substrate, UVC chips, a sealing plug, and a power cord. The transparent tube is configured with one end open and the other end closed, and is hollow inside. The insulating substrate is fixedly installed inside the hollow part of the transparent tube by the sealing plug, which is fixedly connected to the opening of the transparent tube to seal the opening. Several UVC chips are provided, and the several UVC chips are evenly fixedly connected to the front and back surfaces of the insulating substrate. One end of the power cord passes through the sealing plug and is electrically connected to the insulating substrate.

[0005] Preferably, the sealing plug includes a plug body and a sealing ring. The sealing ring is fitted onto the connection between the plug body and the transparent tube. The plug body has a through hole in the middle for the power cord to pass through. The plug body is fixedly connected to the transparent tube by a snap-fit ​​or threaded connection.

[0006] Preferably, one side of the plug body is provided with a snap-fit ​​part for snapping into the inside of the transparent tube, and the two sides of the snap-fit ​​part are respectively provided with grooves for snapping into the insulating substrate. One end of the insulating substrate is fixedly snapped into the two grooves to achieve a fixed connection with the plug body.

[0007] Preferably, each UVC chip is uniformly fixed to the PCB circuit by means of mounting, soldering or mechanical fixing.

[0008] Preferably, the power cord includes a positive lead and a negative lead for corresponding connection to the positive and negative terminals of the PCB circuitry on the insulating substrate.

[0009] Preferably, the insulating substrate is a high thermal conductivity ceramic substrate.

[0010] Preferably, the transparent tube is made of high-transmittance quartz glass.

[0011] Preferably, the sealing plug is made of a thermally conductive material.

[0012] Preferably, the UVC wafer is configured as a wafer with a wavelength range of 260-280nm.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention features a simple structure and reasonable design. By uniformly fixing several UVC chips to the front and back of an insulating substrate and integrating the insulating substrate into a transparent tube using a sealing plug, the UVC ultraviolet rays emitted by the UVC chips can destroy and alter the molecular structure of microorganisms' DNA or RNA, causing bacteria to die immediately or be unable to reproduce, thereby achieving the purpose of sterilization. It has advantages such as small size, large radiation angle, good sterilization effect, and suitability for long-term operation in static water without discoloration. It is especially suitable for small medical aesthetic sterilization equipment or small household sterilization appliances. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a small UVC germicidal lamp provided in an embodiment of the present invention;

[0017] Figure 2 This is an exploded schematic diagram of a small UVC germicidal lamp provided in an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the plug body of a small UVC germicidal lamp provided in an embodiment of the present invention;

[0019] Figure 4 This is a partial structural schematic diagram of a small UVC germicidal lamp provided in an embodiment of this utility model. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Please refer to Figure 1 The present invention provides a small UVC germicidal lamp, including a transparent tube 1, an insulating substrate 2, a UVC chip 3, a sealing plug 4, a power cord 5, and other components. The components of this embodiment will be described in detail below with reference to the accompanying drawings.

[0022] like Figure 1 As shown, the transparent tube 1 can be configured as a structure with one end open and the other end closed and hollow inside. The insulating substrate 2 is fixedly installed inside the hollow of the transparent tube 1 by a sealing plug 4. The sealing plug 4 is fixedly connected to the opening of the transparent tube 1 to seal the opening of the transparent tube 1. Several UVC chips 3 are provided, and several UVC chips 3 are evenly fixedly connected to the PCB lines 21 on the front and back of the insulating substrate 2. One end of the power line 5 can pass through the sealing plug 4 and be electrically connected to the PCB lines 21 on the insulating substrate 2.

[0023] Among them, a small UVC chip 3 is used and evenly arranged on both sides of the insulating substrate 2, and compactly installed in a smaller transparent tube 1. The integration is high, the overall volume is reduced, and the radiation intensity per unit volume is increased, which can ensure that the light coverage is without dead angles.

[0024] To achieve better sterilization, the UVC chip 3 can be set to a wavelength range of 260-280nm. The wavelength range of 260-280nm is the peak absorption range for microorganisms. The UVC ultraviolet rays of this UVC chip 3 completely destroy and change the molecular structure of the DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) of microorganisms, causing bacteria to die immediately or be unable to reproduce, thus achieving the purpose of sterilization.

[0025] Preferably, the transparent tube 1 can be made of high-transmittance quartz glass, which ensures that the ultraviolet rays emitted by the UVC chip 3 can be well transmitted to the external environment, thereby effectively exerting a bactericidal effect. The high transmittance reduces the loss of ultraviolet rays, improves the bactericidal efficiency, and can withstand long-term exposure to ultraviolet rays without discoloration. At the same time, the high-transmittance quartz glass can protect the internal components, prevent dust and moisture from entering, and is suitable for long-term operation in static water. It is mainly used in devices such as small water purifiers, beauty instruments, or dental flossers.

[0026] In this embodiment, each UVC chip 3 is uniformly fixed to the PCB circuit 21 by means of mounting, soldering or mechanical fixing.

[0027] The mounting method involves using conductive adhesive to mount the UVC chip 3 onto the pre-set pads on the PCB, and then heating or curing the adhesive to fix it and achieve electrical connection. The soldering method uses lead-free solder to connect the pins or pads of the UVC chip 3 to the PCB circuit, and then heating the solder to melt it and form solder joints. Alternatively, mechanical fixing methods such as clips and clamps can be used to fix the UVC chip 3.

[0028] To prevent the UVC wafer 3 from overheating due to heat accumulation, which could affect its performance and lifespan, the insulating substrate 2 can preferably be configured as a high thermal conductivity ceramic substrate.

[0029] Furthermore, the sealing plug 4 can also be made of a thermally conductive material. The thermally conductive material can be aluminum or copper, which have good thermal conductivity, with aluminum being preferred because a dense oxide film can be formed on the surface of aluminum, which has a certain degree of corrosion resistance. This invention does not limit the type of thermally conductive material used.

[0030] The use of a high thermal conductivity ceramic substrate can quickly conduct the heat generated by the UVC chip to the sealing plug 4. The thermally conductive sealing plug 4 assists the insulating substrate 2 in further dissipating the heat, preventing the UVC chip 3 from overheating and improving heat dissipation performance and sterilization efficiency.

[0031] like Figure 2 As shown, the sealing plug 4 may include a plug body 41 and a sealing ring 42. The sealing ring 42 is sleeved at the connection position between the plug body 41 and the transparent tube 1. The plug body 41 has a through hole 411 in the middle for the power cord 5 to pass through. The plug body 41 is fixedly connected to the transparent tube 1 by a snap-fit ​​or threaded connection.

[0032] Preferably, after the power cord 5 passes through the through hole 411, it can be sealed by filling with sealant, which can prevent moisture and dust from entering the transparent tube 1 and also fix the power cord 1 to prevent it from loosening.

[0033] Specifically, such as Figure 3As shown, one side of the plug body 41 is provided with a snap-fit ​​part 412 for snapping into the inside of the transparent tube 1. The two sides of the snap-fit ​​part 412 are respectively provided with grooves 413 for snapping into the insulating substrate 2. One end of the insulating substrate 2 is fixedly snapped into the two grooves 413 to achieve a fixed connection with the plug body 41.

[0034] like Figure 4 As shown, the power line 5 may include a positive lead 51 and a negative lead 52 for corresponding connection with the positive and negative terminals of the PCB line 21 on the insulating substrate 2, ensuring the correct transmission of current and providing power support for the normal operation of the UVC chip 3.

[0035] In summary, this invention achieves sterilization by uniformly fixing several UVC chips to the front and back of an insulating substrate and integrating the insulating substrate into a transparent tube using a sealing plug. The UVC ultraviolet rays emitted by the UVC chips can destroy and alter the molecular structure of the DNA or RNA of microorganisms, causing bacteria to die immediately or be unable to reproduce, thereby achieving the purpose of sterilization. It has the advantages of small size, large radiation angle, good sterilization effect, and suitability for long-term operation in static water without discoloration. It is especially suitable for small medical aesthetic sterilization equipment or small household sterilization appliances.

[0036] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A compact UVC germicidal lamp characterized by: The device includes a transparent tube (1), an insulating substrate (2), a UVC chip (3), a sealing plug (4), and a power cord (5). The transparent tube (1) is configured with one end open and the other end closed and hollow inside. The insulating substrate (2) is fixedly installed inside the hollow part of the transparent tube (1) by the sealing plug (4). The sealing plug (4) is fixedly connected to the opening of the transparent tube (1) to seal the opening of the transparent tube (1). There are several UVC chips (3), and several UVC chips (3) are evenly fixedly connected to the PCB lines (21) on the front and back sides of the insulating substrate (2). One end of the power cord (5) can pass through the sealing plug (4) and be electrically connected to the PCB lines (21) on the insulating substrate (2).

2. A compact UVC sterilization lamp according to claim 1, characterized in that: The sealing plug (4) includes a plug body (41) and a sealing ring (42). The sealing ring (42) is fitted onto the connection position between the plug body (41) and the transparent tube (1). The plug body (41) has a through hole (411) in the middle for the power cord (5) to pass through. The plug body (41) is fixedly connected to the transparent tube (1) by a snap-fit ​​or threaded connection.

3. A compact UVC sterilization lamp according to claim 2, characterized in that: The plug body (41) has a snap-fit ​​part (412) on one side for snapping into the inside of the transparent tube (1). The snap-fit ​​part (412) has grooves (413) on both sides for snapping into the insulating substrate (2). One end of the insulating substrate (2) is fixedly snapped into the two grooves (413) to achieve a fixed connection with the plug body (41).

4. A compact UVC sterilization lamp according to claim 1, characterized in that: Each UVC chip (3) is uniformly fixed to the PCB circuit (21) by means of mounting, soldering or mechanical fixing.

5. A compact UVC sterilization lamp according to claim 1, characterized in that: The power line (5) includes a positive lead (51) and a negative lead (52) for corresponding connection with the positive and negative terminals of the PCB circuit (21) on the insulating substrate (2).

6. A compact UVC sterilization lamp according to claim 1, characterized in that: The insulating substrate (2) is configured as a high thermal conductivity ceramic substrate.

7. A compact UVC sterilization lamp according to claim 1, characterized in that: The transparent tube (1) is made of high-transmittance quartz glass.

8. A compact UVC sterilization lamp according to claim 1, characterized in that: The sealing plug (4) is made of thermally conductive material.

9. A compact UVC sterilization lamp according to claim 1, characterized in that: The UVC wafer (3) is configured as a wafer with a wavelength range of 260-280nm.

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