TWM595726U - UVC lighting lamp - Google Patents

Abstract

The present invention is a UVC light-emitting tube. Its structure includes a hollow quartz tube and a light-emitting module. The hollow quartz tube is provided with an aluminum reflective layer. The light-emitting module is arranged in the hollow quartz tube, and the The light-emitting module includes a circuit board, at least one substrate, at least one UVC flip chip and at least one quartz package, wherein the aluminum reflective layer is disposed relative to a light emitting surface of the at least one UVC flip chip.

Description

UVC light tube

This creation is about a lamp structure, especially a UVC luminous lamp.

In recent years, LED technology has continued to develop, and industry competition has intensified. Major manufacturers have begun to turn to the niche market to find a new blue ocean. UV LED, as a segment of high-margin segment, is developing rapidly.

The so-called UV, also known as Ultraviolet, is also commonly known as ultraviolet rays. Among them, UV LED refers to LEDs with an emission wavelength below 400nm. Depending on the emission wavelength, UV can be further divided into UVA (320-400nm) and UVB (280-320nm ) And three kinds of UVC (200-280nm), detailed classification is as follows:

UVA: The wavelength is longer, the wavelength is between 320-400nm, can penetrate the cloud layer, glass into the room and the car, UVA can penetrate to the dermis layer of the skin, will make people tanned, among them, UVA can be subdivided into UVA -2 (320-340nm) and UVA-1 (340-400nm).

UVB: The wavelength is in the middle, the wavelength is between 280-320nm, it will be absorbed by the ozone layer, it will cause sunburn and skin redness, swelling, heat and pain. In severe cases, it will blisters or peel.

UVC: The wavelength is between 100-280nm, but because the wavelength below 200nm is the vacuum ultraviolet wavelength, it can be absorbed by the air. Therefore, the wavelength that UVC can pass through the atmosphere is between 200-280nm. The shorter the UVC wavelength, the more dangerous , But because it can be blocked by the ozone layer, only a small amount will reach the surface of the earth.

Traditionally, the most suitable UVC LED for sterilization has a wavelength of 254 nm. The source of traditionally used sterilization lamps is mostly the peak wavelength of low-pressure mercury lamps (only determined by the physics of the lamp) of 253.7 nm. However, in actual use, all UV wavelengths in a certain range have a bactericidal effect, but most users think that the wavelength of 265nm is the best because this wavelength is the peak of the DNA absorption curve. Therefore, UVC is the most suitable band for sterilization.

Historically, low-pressure mercury lamps were the only option for UV sterilization. However, the Minamata Convention on Mercury has officially entered into force in China since August 16, 2017. The Convention requires that from January 1, 2021, the production and import and export of mercury-containing products shall be prohibited. Lamps are also in this column, therefore, UVC LED is a substitute for mercury lamps.

However, the traditional UVC mercury lamp used inside the air sterilization machine is used as a light source for sterilization. However, the UVC mercury lamp has environmental problems and a short service life. In addition, most UVC mercury lamps are linear light sources, not uniform. The surface light source may not achieve the full sterilization effect on the sterilization effect.

Therefore, as can be seen from the above, although the UVC mercury lamp can be effectively used for sterilization and disinfection, it still has certain shortcomings, and for the UVC mercury lamp, the price is high and the service life is short, and it will cause environmental pollution.

Therefore, how to improve the sterilization method of the traditional UVC mercury lamp, reduce the price and extend the service life of the UVC mercury lamp, and reduce the problems that cause environmental pollution are the problems that those skilled in the art want to solve.

One of the purposes of this creation is to provide a UVC light-emitting tube. By using the UVC LED module to replace the traditional UVC mercury lamp tube, and by plating a metal on the surface of the tube, it generates a large-angle light source and enhances the light. Uniformity.

For the above purpose, the present invention provides a UVC light-emitting tube, which includes a hollow quartz tube, an aluminum reflective layer, and a light-emitting module, which is disposed inside one of the hollow quartz tubes, the light The module includes a circuit board, the circuit board is electrically connected to two electrodes, at least one substrate is disposed on the circuit board, and is electrically connected to the two electrodes; at least one UVC flip chip, which is The emission wavelength is 200-280 nm, which is arranged on the at least one substrate and is electrically connected to the at least one substrate, and at least one quartz package, which is sealed on the at least one UVC flip chip, and There is a space layer in the middle; wherein, the aluminum reflective layer is disposed relative to a light emitting surface of the at least one UVC flip chip.

This creation provides an embodiment, wherein the UVC flip chip includes a sapphire substrate, a first semiconductor layer, which is disposed under the sapphire substrate, and a light emitting layer, which is disposed on the first semiconductor layer Next, the light-emitting layer is selected from one of aluminum gallium nitride, gallium nitride, or a combination of the foregoing, and a second semiconductor layer is disposed under the light-emitting layer.

The present invention provides an embodiment, wherein the at least one substrate is a ceramic substrate or a silicon substrate.

The present invention provides an embodiment, which further includes an N electrode disposed under the first semiconductor layer.

The present invention provides an embodiment, which further includes a P electrode disposed under the second semiconductor layer.

In order to make your reviewer have a better understanding and understanding of the characteristics of the creation and the effects achieved, I would like to use the preferred embodiments and detailed explanations as follows:

The traditional UVC mercury lamp used inside the air sterilization machine is used as a light source for sterilization, but the UVC mercury lamp has environmental problems and a short service life. In addition, most UVC mercury lamps are linear light sources, rather than uniform surface light sources. , In this way, the effect of sterilization may not be able to achieve full sterilization.

This creation is to provide a UVC light-emitting tube. By using the UVC LED module to replace the traditional UVC mercury lamp tube, and by plating a metal on the surface of the tube, it generates a large-angle light source and improves the light uniformity.

In the following, the present creation will be described in detail by illustrating various embodiments of the present creation by the drawings. However, the concept of this creation may be embodied in many different forms, and should not be interpreted as being limited to the exemplary embodiments set forth herein.

First, please refer to FIG. 1A, which is a schematic structural view of a lamp tube according to an embodiment of the creation. As shown in the figure, the structure of a UVC light-emitting lamp 1 of this creation includes a hollow quartz lamp tube 10 and a light-emitting mold. Group 20, the light emitting module 20 includes a circuit board 22, a space layer 23, at least one substrate 24, at least one UVC flip chip 26 and at least one quartz package 28.

Next, please also refer to FIG. 1B, which is a schematic top view of a lamp tube according to an embodiment of the creation. As shown in the figure, the UVC light-emitting lamp tube 1 of this creation includes the hollow quartz lamp tube 10, which is hollow The quartz lamp tube 10 is provided with an aluminum reflective layer 12, and the light emitting module 20 is disposed inside one of the hollow quartz lamp tubes 10. The circuit board 22 in the light emitting module 20 is electrically connected to the two electrodes 21. The circuit board 22 is provided with the at least one substrate 24, the at least one substrate 24 is electrically connected to the two electrodes 21, the at least one UVC flip chip 26 is disposed above the at least one substrate, the at least one UVC flip chip 26 is disposed on the at least one substrate 24 and electrically connected to the at least one substrate 24, wherein the at least one UVC flip chip 26 can emit a wavelength range of 200 to 280 nm.

Following the above, the at least one quartz package 28 encapsulates the at least one UVC flip chip 26 and the space layer 23 is provided between the at least one quartz package 28 and the at least one UVC flip chip 26, wherein, the above The aluminum reflective layer 12 is disposed relative to a light emitting surface OL of the at least one UVC flip chip 26.

Among them, please refer to FIG. 2, which is a schematic structural diagram of a UVC flip chip according to an embodiment of the creation. As shown in the figure, the at least one UVC flip chip 26 described above includes a sapphire substrate 262 and a first A semiconductor layer 264, a light-emitting layer 266, and a second semiconductor layer 268, the first semiconductor layer 264 is disposed under the sapphire substrate 262, the light-emitting layer 266 is disposed under the first semiconductor layer 264, wherein, The light-emitting layer 266 is selected from one of aluminum gallium nitride, gallium nitride, or a combination thereof, and the second semiconductor layer 268 is disposed under the light-emitting layer 266, and further, the at least one UVC flip chip The chip 266 structure further includes an N electrode 261 disposed under the first semiconductor layer 264, and further includes a P electrode 263 disposed under the second semiconductor layer 268 , The at least one UVC flip chip 266 is electrically connected to the at least one substrate 24 through the N electrode 261 and the P electrode 263, and is electrically connected to the two electrodes 21 of the circuit board 22 through the at least one substrate 24, so that The at least one UVC flip chip 266 can emit UV light source through electric power to achieve the effect of sterilization.

Based on the above technical features, this creation enumerates a practical example below in order to clearly explain the structure of the UVC light-emitting lamp tube of this creation. After an aluminum reflective layer 12 is provided on the hollow quartz lamp tube 10, the light-emitting module 20 is placed on In the hollow quartz lamp tube 10, the at least one UVC flip chip 26 on the light emitting module 20 can emit a UV light source with a wavelength of 200nm to 280nm, and the aluminum reflective layer 12 provided in the hollow quartz lamp tube 10 , The set position is located on the opposite surface of the light-emitting surface OL, at this time, after one of the emitted light sources L is projected onto the aluminum reflective layer 12, the light source L passes through the aluminum reflective layer 12 again, will produce a penetrating light source L1 And a reflective light source L2, through the penetrating light source L1 penetrating through the aluminum reflective layer 12, the penetrating light source L1 and the aluminum reflective layer 12 are angled, and due to the influence of the angle θ, the UVC of the present creation can be made The lamp tube is converted into a surface light source through the penetrating light source L1, which is different from the conventional light source sterilization of the UVC mercury lamp.

Through the one-sided light source of UVC, the sterilization effect can be more comprehensive, and because the light-emitting module 20 uses the UVC flip chip 26, unlike the conventional bulb structure, it is not easy to be damaged, and the volume is small, not It is easy to cause environmental protection problems, and the UVC flip chip 26 has a long service life, which can avoid the problem of increasing the cost of consumables due to frequent lamp replacement.

The above-mentioned embodiment, the UVC lamp tube structure of this creation is a kind of UVC luminous lamp tube. By using the UVC LED module to replace the traditional UVC mercury lamp tube, and by plating a metal on the surface of the lamp tube to make it Produces a light source with a large angle and improves light uniformity.

However, the above are only the preferred embodiments of this creation, and are not used to limit the scope of the implementation of this creation. Any changes and modifications based on the shape, structure, characteristics and spirit described in the scope of the patent application for this creation , Should be included in the scope of patent applications for this creation.

1: UVC lamp 10: Hollow quartz tube 12: Aluminum reflective layer 20: Light emitting module 21: electrode 22: circuit board 23: Space layer 24: substrate 26: UVC flip chip 261: N electrode 262: Sapphire substrate 263: P electrode 264: first semiconductor layer 266: Luminous layer 268: Second semiconductor layer 28: Quartz package OL: luminous surface L: light source L1: penetrating light source L2: reflective light source

Figure 1A: This is a schematic diagram of the lamp structure according to one embodiment of the creation; Figure 1B: This is a schematic top view of a lamp according to an embodiment of the creation; and Figure 2: This is a schematic diagram of the structure of a UVC flip chip as an embodiment of the creation.

1: UVC lamp

10: Hollow quartz tube

12: Aluminum reflective layer

20: Light emitting module

22: circuit board

23: Space layer

24: substrate

26: UVC flip chip

261: N electrode

263: P electrode

28: Quartz package

OL: luminous surface

L: light source

L1: penetrating light source

L2: reflective light source

Claims (5)

A UVC luminous tube, which includes: A hollow quartz lamp tube with an aluminum reflective layer; and A light-emitting module is disposed inside one of the hollow quartz lamp tubes. The light-emitting module includes: A circuit board, the circuit board is electrically connected to two electrodes; At least one substrate, which is disposed on the circuit board and electrically connected to the two electrodes; At least one UVC flip chip, which emits a wavelength of 200-280 nm, which is disposed on the at least one substrate and electrically connected to the at least one substrate; and At least one quartz package, which is sealed on the at least one UVC flip chip, and a space layer is provided between the two; Wherein, the aluminum reflective layer is disposed relative to a light emitting surface of the at least one UVC flip chip. The UVC light emitting tube according to claim 1, wherein the UVC flip chip includes: A sapphire substrate; A first semiconductor layer disposed under the sapphire substrate; A light-emitting layer disposed under the first semiconductor layer, the light-emitting layer is selected from one of aluminum gallium nitride, gallium nitride, or a combination of the foregoing; and A second semiconductor layer is disposed under the light-emitting layer. The UVC light emitting tube according to claim 1, wherein the at least one substrate is a ceramic substrate or a silicon substrate. The UVC light emitting tube according to claim 2, further comprising an N electrode, the N electrode is disposed under the first semiconductor layer. The UVC light emitting tube according to claim 2, further comprising a P electrode, the P electrode is disposed under the second semiconductor layer.

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