CN206492032U - UV LED sterilizing units - Google Patents

Abstract

The utility model relates to the field of disinfection devices, in particular to a UV-LED sterilization device, comprising: a UV-LED ultraviolet light source, a light source circuit board, a light-transmitting sheet and an outer casing; the light-transmitting sheet is bonded and fixed on the The lower opening edge of the outer casing forms a cavity, and the light source circuit board is arranged in the cavity; the UV-LED ultraviolet light source is installed on the lower surface of the light source circuit board and passes through the light-transmitting sheet Expose ultraviolet rays outward. Adopting the above scheme, the utility model provides a UV-LED sterilization device, which uses UV-LED as the ultraviolet light source, which is energy-saving and environmentally friendly, has low heat radiation, is safe, reliable, stable and durable, and can efficiently sterilize.

Description

UV-LED sterilization device

technical field

The utility model relates to the field of disinfection devices, in particular to a UV-LED sterilization device.

Background technique

Human beings have long had a tradition of using ultraviolet light in sunlight to partially sterilize bacteria. Scientists at home and abroad have studied ultraviolet sterilization for more than a hundred years. Ultraviolet sterilization technology has been more widely used in more and more fields, especially It has achieved outstanding results in air sterilization and water treatment sterilization. It mainly acts on the DNA of microorganisms, destroys the DNA structure, and makes them lose the functions of reproduction and self-replication, so as to achieve the purpose of sterilization and disinfection, and has the advantages of colorless, odorless and no chemical substances left behind.

The light source devices of existing ultraviolet sterilizing equipment basically use mercury lamps. Mercury lamps can produce ultraviolet rays that eliminate bacteria, but the wavelength band is relatively wide. , high energy consumption; there is a glass tube on the periphery of the light-emitting device, once it hits a sharp object or falls to the ground, the glass tube is easy to break, causing secondary pollution; the heat emitted by the mercury lamp is relatively large when it is irradiated, and it needs to be considered when using it. The problem of heat dissipation.

Utility model content

In order to solve the above problems, the utility model provides a UV-LED sterilizing device, which is energy-saving and environmentally friendly, has low heat radiation, is safe, reliable, stable and durable, and can sterilize efficiently.

A UV-LED sterilization device, comprising: a UV-LED ultraviolet light source, a light source circuit board, a light-transmitting sheet and an outer casing; the light-transmitting sheet is bonded and fixed on the lower opening edge of the outer casing to form a cavity, The light source circuit board is arranged in the cavity; the UV-LED ultraviolet light source is installed on the lower surface of the light source circuit board, and irradiates ultraviolet rays with a bactericidal effect through the light-transmitting sheet, thereby achieving sterilization and inhibit the growth of bacteria.

Further, the above-mentioned UV-LED sterilizing device also includes: an indicator light, the indicator light is installed on the upper surface of the light source circuit board, and an indicator light hole is correspondingly arranged on the outer casing, and the indicator light passes through the hole Visible light is emitted outward to display the working status of the UV-LED sterilization device.

Further, the wavelength of ultraviolet light emitted by the above-mentioned UV-LED ultraviolet light source is 200nm-280nm. Experiments have shown that ultraviolet light with a wavelength of 200nm-280nm has the best sterilization effect.

Further, one or more of the above-mentioned ultraviolet light sources can be set as needed, so as to meet the requirements of different environments for the intensity of ultraviolet light.

Further, the above-mentioned cavity is a closed cavity, which prevents foreign matter, especially liquid, from entering the cavity, so that the UV-LED sterilizing device can be used in more sterilizing environments and has higher applicability.

Further, a sealing ring is provided on the fixing surface between the above-mentioned light-transmitting sheet and the outer shell to ensure the sealing effect.

Further, the above-mentioned UV-LED sterilizing device further includes: a connecting wire, one end of which is electrically connected to the light source circuit board, and the other end is connected to a power supply device, so as to realize effective control of the UV-LED sterilizing device.

Compared with the prior art, the UV-LED sterilization device provided by the utility model has the following beneficial effects:

1. Using UV-LED as the ultraviolet light source produces single-wavelength light, which is relatively concentrated, with high ultraviolet radiation intensity and higher sterilization efficiency.

2. It does not contain mercury, and the generated ultraviolet light itself does not contain toxic substances and will not cause secondary pollution, which is safe and environmentally friendly.

3. UV-LED is a cold light source without heat radiation.

4.UV-LED has a long life, and the life is not affected by the number of times of opening and closing, vibration resistance, stable and reliable.

5. There is no need to preheat when using, and it can be used immediately.

6. The voltage used by UV-LED is relatively low, which saves energy.

7. UV-LEDs are small in size and can be manufactured into products of different shapes according to requirements, suitable for various occasions.

Adopting the above scheme, the utility model provides a UV-LED sterilizing device, which is energy-saving and environment-friendly, has low heat radiation, is safe, reliable, stable and durable, and can sterilize efficiently.

Description of drawings

Fig. 1 is the structural explosion schematic diagram of the utility model;

Fig. 2 is a schematic cross-sectional view of the structure of the utility model.

Reference signs: 1-outer shell; 2-UV-LED ultraviolet light source; 21-first light source; 22-second light source; 3-translucent sheet; 4-light source circuit board; 5-indicator light; 6-sealing ring

detailed description

Embodiments of the technical solutions of the present utility model will be described in detail below in conjunction with the accompanying drawings. In the description of the utility model application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, It is only for the convenience of describing the utility model and simplifying the description, but does not indicate or imply that the components or structures referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

As shown in Figure 1 and Figure 2, the UV-LED sterilization device provided by the utility model includes: an outer shell 1, a UV-LED ultraviolet light source 2, a light-transmitting sheet 3, a light source circuit board 4, an indicator light 5 and a sealing ring 6 . The light-transmitting sheet 3 is fixed on the edge of the lower opening of the outer shell 1 by a kind of glue to form a closed cavity, and at the same time, a sealing ring 6 is arranged on the connecting end surface to ensure waterproof and dustproof; the light source circuit board 4 is arranged in the cavity (not marked in the figure), and fixed on the preset bolt column on the outer shell 1 by bolts; Irradiate ultraviolet rays with a bactericidal effect; the indicator light 5 is installed on the upper surface of the light source circuit board 4, and an indicator light hole is correspondingly arranged on the outer shell 1, and the indicator light 5 emits visible light through the hole to display the UV light. - the working state of the LED sterilizing device; meanwhile, the light source circuit board 4 is connected to a power supply device such as a power supply or a main control board through a connecting wire, and controls and supplies power to the UV-LED ultraviolet light source 2 and the indicator light 5. When the UV-LED sterilizing device is working, the indicator light 5 emits visible light to the outside of the housing 1, and displays the working status of the UV-LED ultraviolet light source 2; 280nm ultraviolet rays, experiments have proved that ultraviolet rays of this wavelength have a strong sterilization and disinfection effect. Sterilizes and inhibits the growth of bacteria.

The UV-LED is small in size, and one or more can be set according to different environmental requirements and sterilization intensity requirements, or manufactured into products with different shapes and powers, which are suitable for various occasions; the UV-LED ultraviolet light source 2 in this embodiment is set as Two, the first light source 21 and the second light source 22 are symmetrically arranged on the light source circuit board 4, and irradiate stronger germicidal ultraviolet light uniformly outward.

While retaining the advantages of ultraviolet sterilization, colorless, odorless, and no chemical substances left over, the utility model uses UV-LED as an ultraviolet light source to replace mercury lamps, and the generated ultraviolet rays themselves do not contain toxic substances and will not cause secondary pollution. Environmental protection; UV-LED is a cold light source, no heat radiation, no need to preheat when used, ready to use, and produces a single wavelength of light, relatively concentrated, high brightness, high ultraviolet radiation intensity, higher sterilization efficiency ;The driving voltage of UV-LED is relatively low, and a single UV-LED voltage of 5-7V can emit ultraviolet rays that can be sterilized, which is energy-saving; Stable and reliable; UV-LED is small in size, and can be manufactured into products with different shapes and powers according to different environmental requirements and sterilization intensity requirements. It is suitable for dry and wet environments, open and closed spaces, as well as water dispensers, refrigerators, washing machines, dehumidifiers, etc. Various specific occasions that require sterilization.

To sum up, the utility model provides a UV-LED sterilization device, which uses UV-LED as the ultraviolet light source, which is energy-saving and environmentally friendly, has low heat radiation, is safe, reliable, stable and durable, and can sterilize efficiently.

It should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present utility model. , which should be included in the claims of the utility model and the scope of the specification.

Claims (7)

1. A UV-LED sterilization device is characterized in that, comprising: UV-LED ultraviolet light source, light source circuit board, light-transmitting sheet and outer casing; Described light-transmitting sheet is bonded and fixed on the lower end opening edge of the outer casing , forming a cavity, the light source circuit board is arranged in the cavity; the UV-LED ultraviolet light source is installed on the lower surface of the light source circuit board, and irradiates ultraviolet rays outward through the transparent sheet. 2. The UV-LED sterilizing device according to claim 1, further comprising: an indicator light, the indicator light is installed on the upper surface of the light source circuit board, and a corresponding one is arranged on the outer shell Light hole. 3. The UV-LED sterilization device according to claim 1, characterized in that, The ultraviolet light emitted by the UV-LED ultraviolet light source has a wavelength of 200nm-280nm. 4. The UV-LED sterilization device according to claim 3, characterized in that, One or more ultraviolet light sources are provided. 5. The UV-LED sterilization device according to claim 1, characterized in that, The cavity is a closed cavity. 6. The UV-LED sterilization device according to claim 5, characterized in that, A sealing ring is provided on the fixing surface between the light-transmitting sheet and the outer casing. 7. The UV-LED sterilizing device according to claim 1, further comprising: a connection wire; one end of the connection wire is electrically connected to the light source circuit board, and the other end is connected to a power supply device.