LED photocatalytic lamp

Abstract

The utility model provides a light-emitting diode (LED) photocatalysis lamp which comprises a barrel outer cover, a lamp holder cover, a glass lens, a reflecting cover, an LED lamp panel, a radiator, a fan, a printed circuit board assembly (PCBA) driving board and a rear cover, an LED lamp bead array is arranged on the front face of the LED lamp panel, a copper substrate is arranged on the back face of the LED lamp panel, the reflecting cover is arranged in front of the front face of the LED lamp panel, the glass lens is arranged in front of the reflecting cover, and the radiator is arranged on the back face of the LED lamp panel. The glass lens is installed on the LED lamp panel, the lamp holder cover is pressed on the glass lens and connected with the barrel outer cover, the radiator is installed on the back face of the LED lamp panel, the fan is installed behind the radiator, the PCBA driving board is installed behind the fan, and heat dissipation holes are formed in the barrel outer cover. The LED photocatalytic lamp provided by the utility model is compact in structure, small in size, good in heat dissipation effect and capable of meeting long-time continuous work; and moreover, the power is high, multi-gear power adjustment is supported, and the wavelength coverage range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of photocatalysis, in particular to an LED photocatalytic lamp. Background Art

[0002] Photocatalysis uses light to excite electrons to trigger chemical reactions, enabling the breaking and reforming of chemical bonds under mild conditions. Compared to traditional heating reactions, it offers advantages such as being green, clean, safe, environmentally friendly, and easy to control. In recent years, the application of photocatalysis in organic synthesis has rapidly developed. In photocatalytic reactions, the light source is a crucial component, with commonly used light sources including mercury lamps, xenon lamps, halogen lamps, incandescent lamps, and LED lamps. Because photocatalytic experiments typically require a long timeframe, high light source quality and safety are required to ensure the stability of the experimental process. At equivalent power, mercury, xenon, halogen, and incandescent lamps generally suffer from high power consumption, low luminous efficiency, and short lifespans. They are also prone to light decay, which reduces light intensity and reduces photochemical conversion efficiency. LED light sources, on the other hand, offer advantages such as high photoelectric conversion efficiency, low energy consumption, low heat generation, low operating voltage, and a long service life, making them more popular.

[0003] In existing technologies, LED light sources are often built into photocatalytic reactors, making maintenance and replacement cumbersome. Furthermore, due to size limitations and heat dissipation requirements, the light source power is generally low, resulting in weak light intensity, which slows the reaction rate. Furthermore, the available wavelengths are limited. Therefore, it is necessary to develop independent, external, high-power LED photocatalytic lamps. However, to meet these heat dissipation requirements, currently available high-power LED lamps are bulky and heavy, making assembly and installation difficult. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a high-power LED photocatalytic lamp with small size and good heat dissipation effect.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides an LED photocatalytic lamp, comprising: a cylindrical outer cover, a lamp head cover, a glass lens, a reflector, an LED lamp board, a radiator, a fan, a PCBA driver board, and a back cover. The front of the LED lamp board is an LED lamp bead array, and the back is a copper base board. The reflector is installed in front of the front of the LED lamp board, and the glass lens is installed in front of the reflector. The lamp head cover is pressed on the glass lens and connected to the cylindrical outer cover. The radiator is installed on the back of the LED lamp board, the fan is installed behind the radiator, and the PCBA driver board is installed behind the fan. The cylindrical outer cover is provided with heat dissipation holes.

[0007] Furthermore, the outer wall of the lamp cap is provided with an external thread, and the inner wall of the front end of the barrel outer cover is provided with an internal thread matching the external thread.

[0008] Furthermore, a sealing ring is provided at the contact portion between the glass lens and the lamp cap, and a sealing gasket is provided at the contact portion between the glass lens and the reflector.

[0009] Furthermore, the copper substrate of the LED lamp board is a thermoelectric separation copper substrate, and the copper substrate is fixed to the outer cover of the cylinder by screws.

[0010] Furthermore, the LED lamp bead array is an N×M array, preferably a 3×4 array.

[0011] Furthermore, the radiator is a dense-tooth radiator, including a base and multiple rows of cooling fins, each row of cooling fins including multiple parallel cooling fins, the base and cooling fins are made of aluminum alloy, copper or stainless steel, the thickness of the base is 2 to 4 mm, the thickness of the cooling fins is 1 to 2 mm, the width is 8 to 10 mm, the height is 20 to 25 mm, the spacing between the cooling fins is 2 to 3 mm, and the row spacing between the multiple rows of cooling fins is 2 to 3 mm.

[0012] Furthermore, the PCBA driver board is a double-layer PCBA board, and a power interface and a power adjustment knob are provided on the side facing the back cover.

[0013] Furthermore, there are two groups of heat dissipation holes on the outer cover of the cylinder, the first group of heat dissipation holes is arranged around the radiator, and the second group of heat dissipation holes is arranged around the PCBA driver board. Each group of heat dissipation holes has multiple rows, and each row has multiple heat dissipation holes.

[0014] Furthermore, the heat dissipation hole is a circular hole, and the surface of the outer cover of the cylinder has an elliptical depression at the heat dissipation hole.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The LED photocatalytic lamp provided by the utility model has a compact structure, a small size, and a good heat dissipation effect, and can meet the needs of long-term continuous operation; it also has high power, supports multi-level power adjustment, and covers a wide wavelength range. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the LED photocatalytic lamp provided by the utility model;

[0018] Figure 2 This is an exploded view of the LED photocatalytic lamp structure provided by the utility model;

[0019] Figure 3 This is a schematic diagram of the heat sink structure of the LED photocatalytic lamp provided by the utility model.

[0020] Figure markings: 1-cylinder outer cover, 2-lamp head cover, 3-glass lens, 4-reflector, 5-LED lamp board, 6-radiator, 7-fan, 8-PCBA driver board, 9-back cover, 10-O-ring, 11-sealing gasket, 12-fan bracket, 13-screw, 14-power adjustment knob, 15-power cord. DETAILED DESCRIPTION

[0021] To enable those skilled in the art to more clearly understand the technical means and effects adopted by the present invention to achieve the intended purpose of the invention, the following, in conjunction with the accompanying drawings and preferred embodiments, further describes in detail the specific implementation methods, structures, features, and effects of the present invention. The examples are provided only to illustrate the present invention and are not intended to limit the scope of the present invention.

[0022] See Figure 1 、 Figure 2 The LED photocatalytic lamp provided by the utility model includes: a cylinder outer cover 1, a lamp head cover 2, a glass lens 3, a reflector 4, an LED light board 5, a radiator 6, a fan 7, a PCBA driver board 8, and a back cover 9. The front of the LED light board 5 is an LED lamp bead array, and the back is a copper base plate. The reflector 4 is installed in front of the front of the LED light board 5, and the glass lens 3 is installed in front of the reflector 4. The lamp head cover 2 is pressed on the glass lens 3 and connected to the cylinder outer cover 1. The radiator 6 is installed on the back of the LED light board 5, the fan 7 is installed behind the radiator 6, and the PCBA driver board 8 is installed behind the fan 7.

[0023] Among them, there is an external thread on the outer wall of the lamp cap 2, and the inner wall of the front end of the cylinder outer cover 1 has an internal thread matching it. The lamp cap 2 and the front end of the cylinder outer cover 1 are connected through threads.

[0024] An O-ring 10 is installed at the contact area between the glass lens 3 and the lamp cap 2, and a sealing gasket 11 is installed at the contact area between the glass lens 3 and the reflector 4. The O-ring 10 is made of rubber, and the sealing gasket 11 is made of EVA foam. The O-rings and gaskets, along with the bottom of the reflector 4 being in close contact with the LED light board 5, ensure that the LED light source portion of the lamp cap is waterproof and dustproof.

[0025] The copper substrate of the LED lamp board 5 is a thermoelectric separation copper substrate. The copper substrate is installed on the outer cover 1 of the cylinder with an interference fit, preferably fixed by screws. The LED lamp bead array uses an N×M array of multiple high-power lamp beads attached to the copper substrate to achieve high power and high heat dissipation effects. A 3×4 array is preferred. The power of the LED light source is 40 to 100W, and there are multiple gears to adjust the power. The wavelength range of the light source is 230nm to 840nm, and typical wavelengths are 230nm, 254nm, 265nm, 275nm, 285nm, 295nm, 305nm, 308nm, 325nm, 330nm, 340nm, 360nm, 365nm, 370nm, 380nm, 390nm, 400nm, 427nm, 440nm, 456nm, 467nm, 525nm, 640nm, 760nm, and 840nm.

[0026] The radiator 6 is a dense-tooth radiator, such as Figure 3 As shown, it includes a base and multiple rows of heat sink fins, each row of heat sink fins including multiple parallel heat sink fins. The base and heat sink fins are made of aluminum alloy, copper, or stainless steel. Preferably, the base is 2-4 mm thick, the heat sink fins are 1-2 mm thick, 8-10 mm wide, and 20-25 mm high. The heat sink fins are spaced 2-3 mm apart, and the spacing between the multiple rows of heat sink fins is 2-3 mm.

[0027] The base of the radiator 6 is in close contact with the copper substrate of the LED lamp board 5. In order to improve the heat conduction efficiency, thermal conductive silicone grease can be provided between the base and the copper substrate.

[0028] The fan 7 is a silent fan and is fixed to the heat dissipation fins of the radiator 6 via a fan bracket 12 .

[0029] The PCBA driver board 8 controls the startup and power regulation of the LED light source, enabling cascade control of multiple LED lights. A double-layer PCBA is used for compactness and is mounted on the fan 7 housing via screws 13. A power adjustment knob 14 and a power port are located on the side facing the rear cover 9. A power cord 15 passes through the rear cover 9 to connect to the power port, and a knob cap is attached to the power adjustment knob 14. A constant-current driver board is built in, requiring only an external DC power supply.

[0030] The rear cover 9 is fixed to the outer cover 1 of the cylinder by screws. The rear cover 9 is provided with a plurality of screw holes for fixing the catalytic lamp on the bracket in the photocatalytic reaction device.

[0031] The outer shell 1 has two sets of cooling holes. The first set surrounds the radiator 6 and consists of five rows of 16 holes, with adjacent rows staggered. The second set surrounds the PCBA driver board 8 and consists of six rows of 16 holes, with adjacent rows staggered. Elliptical depressions are also featured on the outer shell 1, forming a fisheye pattern with the holes, creating a non-slip texture.

[0032] The LED photocatalytic lamp provided in this embodiment has a compact structure and a small size. The diameter of the lamp body is 60-70 mm, the length is 100-120 mm, the power can reach 40-100 W, the heat dissipation effect is good, and it can meet the needs of long-term continuous operation.

[0033] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any person skilled in the art may, without departing from the scope of the present invention, utilize the above-disclosed technical content to make slight changes or modifications to equivalent embodiments. However, any simple modifications, equivalent changes, and modifications to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, shall still fall within the scope of the present invention.

Claims

1. An LED photocatalytic lamp, characterized in that: include: The outer cover of the cylinder, the lamp head cover, the glass lens, the reflector, the LED light board, the radiator, the fan, the PCBA driver board, and the back cover. The front of the LED light board is an LED lamp bead array, and the back is a copper base plate. The reflector is installed in front of the front of the LED light board, and the glass lens is installed in front of the reflector. The lamp head cover is pressed on the glass lens and connected to the outer cover of the cylinder. The radiator is installed on the back of the LED light board, the fan is installed behind the radiator, and the PCBA driver board is installed behind the fan. There are heat dissipation holes on the outer cover of the cylinder.

2. The LED photocatalytic lamp according to claim 1, characterized in that: The outer wall of the lamp cap is provided with an external thread, and the inner wall of the front end of the cylinder outer cover is provided with an internal thread matching the external thread.

3. The LED photocatalytic lamp according to claim 1, characterized in that: A sealing ring is provided at the contact portion between the glass lens and the lamp cap, and a sealing gasket is provided at the contact portion between the glass lens and the reflector.

4. The LED photocatalytic lamp according to claim 1, characterized in that: The copper substrate of the LED lamp board is a thermoelectric separation copper substrate, and the copper substrate is fixed to the outer cover of the cylinder by screws.

5. The LED photocatalytic lamp according to claim 1, characterized in that: The LED lamp bead array is an N×M array.

6. The LED photocatalytic lamp according to claim 1, characterized in that: The radiator is a dense-tooth radiator, including a base and multiple rows of cooling fins, each row of cooling fins including multiple parallel cooling fins, the base and cooling fins are made of aluminum alloy, copper or stainless steel, the thickness of the base is 2 to 4 mm, the thickness of the cooling fins is 1 to 2 mm, the width is 8 to 10 mm, the height is 20 to 25 mm, the spacing between the cooling fins is 2 to 3 mm, and the row spacing of the multiple rows of cooling fins is 2 to 3 mm.

7. The LED photocatalytic lamp according to claim 1, characterized in that: The PCBA driver board is a double-layer PCBA board, and a power interface and a power adjustment knob are provided on the side facing the rear cover.

8. The LED photocatalytic lamp according to claim 1, characterized in that: There are two groups of heat dissipation holes on the outer cover of the cylinder. The first group of heat dissipation holes is arranged around the radiator, and the second group of heat dissipation holes is arranged around the PCBA driver board. Each group of heat dissipation holes has multiple rows, and each row has multiple heat dissipation holes.

9. The LED photocatalytic lamp according to claim 1, characterized in that: The heat dissipation hole is a circular hole, and the surface of the outer cover of the cylinder has an elliptical depression at the heat dissipation hole.

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