LED photocatalysis device
By employing a monolithic light source plate and optical collimation device in the photocatalytic device, combined with a water-cooled plate design, the problems of large light source area and poor heat dissipation are solved, achieving efficient energy utilization and the application of small-scale photocatalytic devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-10
Smart Images
Figure CN224108156U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a photocatalysis equipment technical field especially is a kind of LED photocatalysis device. BACKGROUND
[0002] Photocatalysis lamp refers to be used in chemical industry photochemical reactor, by electric light source emits wavelength light that can be absorbed by reaction substrate, after being effectively absorbed by substrate, chemical reaction occurs, and highest conversion efficiency is obtained to improve product quality and capacity. In photocatalysis, the height of light source light energy directly influences the excitation of photocatalyst, reaction rate, path selection and application range.
[0003] Generally, in order to obtain high light energy, the method of LED array is often used. But in this method, the number of LEDs used is large, which leads to large light source area, multiple LED light cannot be effectively utilized, light source efficiency is low, cost is high, and it is difficult to implement in small photocatalysis device. In addition, light source is easy to produce large heat in working process, which leads to serious heating of photocatalysis assembly, poor heat dissipation effect will lead to the efficiency of electric conversion to light to reduce and make catalytic reaction weaken, and also reduce service life. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of LED photocatalysis device, to solve the problem of large light source area of photocatalysis device in prior art, structure dispersion, the LED photocatalysis device of the utility model has the characteristics of simple structure, high optical efficiency, small volume, especially suitable for high energy demand small photocatalysis device, rely on its compact appearance and high efficiency advantage, obtain wide application in many fields that are strict in space, brightness and energy density requirement.
[0005] The utility model provides a kind of LED photocatalysis device, including shell, light source plate and optical collimation device, there is accommodating cavity in the shell, there is light outlet in the shell one side, the optical collimation device is connected on the shell corresponding the light outlet one side, the light source plate is installed in the shell and the light source on the light source plate is directly opposite the light outlet setting, the light of light source on the light source plate can pass through the light outlet and pass through the optical collimation device.
[0006] As a preferred scheme of the utility model, the optical collimation device includes optical lens barrel, first lens and second lens, the first lens and the second lens are installed in the optical lens barrel with interval, and the first lens and the second lens correspond to the light outlet place and are coaxially arranged.
[0007] As an optimal scheme of the utility model, the optical collimation device further includes an optical spacer, the optical spacer is coaxially installed in the optical lens barrel, the first lens is installed on one side of the optical lens barrel close to the light outlet, the second lens is installed on one side of the optical spacer away from the light outlet, and the distance between the first lens and the second lens can be adjusted by adjusting the length or position of the optical spacer.
[0008] As an optimal scheme of the utility model, the optical lens barrel includes a connecting portion and a lens barrel portion, the connecting portion is connected with the light outlet, the lens barrel portion is coaxially connected with the connecting portion and arranged on one side of the shell, the diameter of the connecting portion is smaller than the diameter of the lens barrel portion, and the first lens is installed in the connecting portion through a first pressing ring.
[0009] As an optimal scheme of the utility model, one side of the second lens away from the optical spacer is provided with a second pressing ring, and the second pressing ring is connected in the optical lens barrel.
[0010] As an optimal scheme of the utility model, a blocking ring is arranged on one side of the connecting portion away from the lens barrel portion, the blocking ring extends to the inside of the connecting portion and surrounds the outer periphery of the light source on the light source plate, and the first lens abuts against the blocking ring.
[0011] As an optimal scheme of the utility model, the diameter of the first lens is smaller than the diameter of the second lens, and the first lens is in a hemispherical shape.
[0012] As an optimal scheme of the utility model, a water-cooled plate is further included, the water-cooled plate is installed in the containing cavity of the shell and abuts against one side of the light source plate away from the light source.
[0013] As an optimal scheme of the utility model, the shell includes a back plate and a pressing plate, the pressing plate is detachably connected with the back plate, and the light outlet is arranged on the pressing plate.
[0014] Compared with the prior art, the utility model has the following positive effects:
[0015] The LED photocatalytic device provided by this utility model includes a housing, a light source plate, and an optical collimation device. The housing has a receiving cavity, and a light outlet is provided on one side of the housing. The optical collimation device is connected to the side of the housing corresponding to the light outlet. The light source plate is installed inside the housing, and the light source on the light source plate is positioned directly opposite the light outlet. The light from the light source on the light source plate can pass through the light outlet and through the optical collimation device. This LED photocatalytic device uses a monolithic light source plate and a small-volume, high-energy LED light source. It features a simple structure, high optical efficiency, and compact size, making it particularly suitable for small photocatalytic devices with high energy requirements. Due to its compact shape and high efficiency, it is widely used in many fields with stringent requirements for space, brightness, and energy density. Attached Figure Description
[0016] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the LED photocatalytic device of this utility model;
[0018] Figure 2 This is a top view of the LED photocatalytic device of this utility model;
[0019] Figure 3 for Figure 2 Cross-sectional view of AA;
[0020] Figure 4 This is an exploded view of the LED photocatalytic device of this utility model;
[0021] Figure 5 This is an exploded view of the optical collimation device in this utility model;
[0022] Figure 6 This is a diagram showing the light output effect of the optical collimation device in this utility model.
[0023] In the figure: 1. Optical collimating device; 2. Housing; 21. Pressure plate; 22. Back plate; 23. Light outlet; 3. Light source plate; 4. Water cooling plate; 11. Second pressure ring; 12. Second lens; 13. First lens; 14. Optical spacer; 15. First pressure ring; 16. Optical lens barrel; 161. Lens barrel section; 162. Connecting part; 163. Retaining ring. Detailed Implementation
[0024] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0027] Example 1:
[0028] This embodiment provides an LED photocatalytic device, such as... Figures 1-5 As shown, the device includes a housing 2, a light source board 3, and an optical collimating device 1. The housing 2 has a receiving cavity, and a light outlet 23 is provided on one side of the housing 2. The optical collimating device 1 is connected to the side of the housing 2 corresponding to the light outlet 23. The light source board 3 is installed inside the housing 2, with the light source on the light source board 3 facing the light outlet 23. The light from the light source on the light source board 3 can pass through the light outlet 23 and through the optical collimating device 1. An LED light source is located on the light source board 3 facing the light outlet 23. The housing 2's receiving cavity effectively blocks external environmental damage to the LED light source. The light source board 3 employs vertical chip technology, optimizing the current path and heat dissipation performance in a smaller area, significantly improving the efficiency, brightness, and reliability of the LED light source. It is suitable for high-power applications, especially in the ultraviolet band (365-405nm), where the photoelectric conversion efficiency can be increased to over 30%.
[0029] The LED photocatalytic device provided by the embodiment adopts a single-piece light source plate 3, adopts a small-volume and high-energy LED light source, and the light source on the light source plate 3 is arranged opposite to the light outlet 23, effective light emission, has the characteristics of simple structure, high optical efficiency and small size, and is especially suitable for small photocatalytic devices with high energy demand, and is widely used in many fields with strict requirements on space, brightness and energy density due to its compact shape and high efficiency.
[0030] As a preferred embodiment, the optical collimation device 1 comprises an optical lens barrel 16, a first lens 13 and a second lens 12, the first lens 13 and the second lens 12 are installed in the optical lens barrel 16 in a spaced manner, and the first lens 13 and the second lens 12 are coaxially arranged corresponding to the light outlet 23.
[0031] The first lens 13 in the embodiment is a hemispherical lens, and the hemispherical surface is more conducive to the collection of large-angle LED light. The surface type can be spherical, aspherical, etc., and the material is quartz glass or other high-temperature-resistant optical material. The second lens 12 is a converging lens, and the surface type can be spherical, aspherical, etc., and the material is quartz glass or other high-temperature-resistant optical material.
[0032] The optical collimation device 1 of the embodiment is used in the light emitted from the LED lamp on the light source plate 3 first enters the first lens 13. Due to the special hemispherical surface of the first lens 13, as much as possible, the originally large-angle divergent light is collected and preliminarily converged, so that it is shot at the second lens 12 with a more concentrated angle. The second lens 12 further accurately converges and corrects the light, effectively reduces the divergence angle of the light, and achieves the effect of near-collimation emission after the light exits from the optical collimation device 1. As shown in Figure 6 .
[0033] The entire optical path of the optical collimation device 1 in the embodiment adopts a two-piece lens design, which is simple in structure and has fewer lenses, thereby maximizing the reduction of the loss of light energy of the optical system. Through a large number of optical simulation and actual test verification, the combination design of the two-piece lens can make the optical utilization rate greater than 70%, greatly improve the energy utilization efficiency of the light source compared with the traditional collimation lens structure, and make more light exit in a near-collimation state, thereby meeting various application scenarios with strict requirements on light quality and energy.
[0034] As a preferred embodiment, as shown in Figure 5 and Figure 3 The optical collimation device 1 further comprises an optical spacer 14 coaxially installed in the optical lens barrel 16. The optical spacer 14 is a cylindrical structure with open ends. The first lens 13 is installed in the optical lens barrel 16 on the side close to the light outlet 23, and the second lens 12 is installed on the optical spacer 14 on the side away from the light outlet 23.
[0035] The distance between the first lens 13 and the second lens 12 can be adjusted by adjusting the length or position of the optical spacer 14. Specifically, the optical spacer 14 can be made in different lengths to adjust the distance between the first lens 13 and the second lens 12; or the optical spacer 14 can be connected to the optical lens barrel 16 through a sliding device such as a slide rail, so that the position of the optical spacer 14 in the optical lens barrel 16 can be adjusted, thereby adjusting the distance between the first lens 13 and the second lens 12, which is suitable for scenarios where the size of the light spot needs to be changed.
[0036] The large-angle LED light-emitting angle is 2a. The focal lengths of the second lens 12 and the first lens 13 are f1 and f1 respectively. The focal length f of the collimation device composed of the second lens 12 and the first lens 13 is eff . Combined with the LED light-emitting angle of 2a and the diameter D of the collimated light spot, the focal length f of the collimation device can be calculated as eff
[0037]
[0038] Where the distance between the LED light source and the optical collimation device 1 is variable, and the maximum distance is ≤0.8f eff The size of the light spot can be adjusted by adjusting the optical spacer 14.
[0039] As a preferred embodiment, as shown in Figure 3 and Figure 5 , the optical lens barrel 16 includes a connecting portion 162 and a lens barrel portion 161. The connecting portion 162 is connected to the light outlet 23, and the lens barrel portion 161 is coaxially connected to the connecting portion 162 and arranged on one side of the housing 2. The diameter of the connecting portion 162 is smaller than that of the lens barrel portion 161. The first lens 13 is installed in the connecting portion 162 through the first compression ring 15, and the first compression ring 15 makes the installation of the first lens 13 more stable. The connecting portion 162 is connected to the light outlet 23 through threads, which ensures that the center of the LED light source and the optical axis of the optical collimation device 1 are coaxial.
[0040] As a preferred embodiment, the second lens 12 is provided with a second compression ring 11 on the side away from the optical spacer 14, and the second compression ring 11 is connected to the optical lens barrel 16. The second compression ring 11 is connected to the inner side of the optical lens barrel 16 through threads. The second compression ring 11 ensures that the second lens 12 is stably installed in the optical lens barrel 16.
[0041] As a preferred embodiment, a retaining ring 163 is arranged on the side of the connecting portion 162 away from the lens barrel portion 161, the retaining ring 163 extends to the inner side of the connecting portion 162 and surrounds the outer periphery of the light source on the light source plate 3, and the first lens 13 abuts against the retaining ring 163. The retaining ring 163 limits the movement of the first lens 13 towards the light source, making the installation of the first lens 13 more stable.
[0042] As a preferred implementation, the diameter of the first lens 13 is smaller than the diameter of the second lens 12, and the first lens 13 is in a semi-spherical shape. The light emitted by the light source first passes through the first lens 13. Due to the semi-spherical shape of the first lens 13, as many light rays as possible that are originally diverging at a large angle are collected and preliminarily converged, so that they are emitted at a more concentrated angle to the second lens 12. The second lens 12 further converges and corrects the light rays, effectively reducing the divergence angle of the light rays.
[0043] As a preferred implementation, the LED photocatalytic device of the embodiment further comprises a water-cooled plate 4 installed in the accommodating cavity of the shell 2 and abutting against the light source plate 3 on the side away from the light source. The water-cooled plate 4 can adopt an existing water-cooled structure, providing conditions for effective heat dissipation of the light source plate 3, so as to ensure that the light source plate 3 can be used within a normal temperature range.
[0044] As a preferred implementation, the shell comprises a back plate 22 and a pressing plate 21, the pressing plate 21 is detachably connected with the back plate 22, and the light outlet 23 is arranged on the pressing plate 21. The back plate 22 and the pressing plate 21 are made of metal materials such as aluminum. The back plate 22 and the pressing plate 21 are made of metal materials such as aluminum, so that the heat on the optical collimation device 1 can be effectively conducted to the environment.
[0045] The LED photocatalytic device of the embodiment has the following advantages: small size advantage: through reasonable structural design, the light source plate, the water-cooled plate and the like are compactly installed in the shell composed of the back plate and the pressing plate, so that compared with a traditional light source, the overall size is greatly reduced, and the device is more convenient to integrate into various devices with harsh space requirements. High-power output: the LED light source adopting the vertical chip technology and the peripheral structure optimize the current path and the heat dissipation performance, realize high-power application, and especially the photoelectric conversion efficiency in the ultraviolet band is greatly improved, so that a stable light source with greater power can be output. The optical collimation device adopts a two-piece lens design, the structure is simple, and the optical utilization rate is > 70%. High-efficiency collimation: the uniquely designed optical collimation device effectively reduces the divergence angle of the light by reasonably configuring different types of lenses, so that the light reaches the effect of nearly collimated emission, and the utilization efficiency and application effect of the light source are improved. Good heat dissipation and stability: the water-cooled plate, the back plate and the pressing plate made of metal materials form an efficient heat dissipation system, so as to ensure the stability of the LED light source in a high-power working state and prolong the service life of the light source.
[0046] The preferred implementation of the above is only the preferred implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make a number of modifications and improvements without departing from the creative concept of the present application, which should be covered within the protection scope of the present application.
Claims
1. An LED photocatalytic device, characterized by, The light source plate (3) is installed in the accommodating cavity of the shell (2), and the light source on the light source plate (3) is arranged opposite to the light outlet (23).
2. The LED photocatalytic device according to claim 1, wherein, The optical collimating device (1) comprises an optical lens barrel (16), a first lens (13) and a second lens (12), the first lens (13) and the second lens (12) are installed in the optical lens barrel (16) in a spaced manner, and the first lens (13) and the second lens (12) are coaxially arranged at the light outlet (23).
3. The LED photocatalytic device of claim 2, wherein, The optical collimating device (1) further comprises an optical spacer (14) coaxially installed in the optical lens barrel (16), the first lens (13) is installed on one side of the optical lens barrel (16) close to the light outlet (23), and the second lens (12) is installed on one side of the optical spacer (14) away from the light outlet (23), and the distance between the first lens (13) and the second lens (12) can be adjusted by adjusting the length or position of the optical spacer (14).
4. The LED photocatalytic device of claim 3, wherein, The optical lens barrel (16) comprises a connecting portion (162) and a lens barrel portion (161), the connecting portion (162) is connected with the light outlet (23), the lens barrel portion (161) is coaxially connected with the connecting portion (162) and arranged on one side of the shell (2), the diameter of the connecting portion (162) is smaller than that of the lens barrel portion (161), and the first lens (13) is installed in the connecting portion (162) through a first compression ring (15).
5. The LED photocatalytic device of claim 4, wherein the LED is configured to emit light having a wavelength of 365 nm. The second lens (12) is provided with a second compression ring (11) on the side away from the optical spacer (14), and the second compression ring (11) is connected in the optical lens barrel (16).
6. The LED photocatalytic device of claim 4, wherein, A stop ring (163) is arranged on the side of the connecting portion (162) away from the lens barrel portion (161), the stop ring (163) extends to the inside of the connecting portion (162) and surrounds the periphery of the light source on the light source plate (3), and the first lens (13) abuts against the stop ring (163).
7. The LED photocatalytic device of claim 2, wherein, The diameter of the first lens (13) is smaller than that of the second lens (12), and the first lens (13) is in a hemispherical shape.
8. The LED photocatalytic device of claim 1, wherein, Further comprising a water-cooled plate (4) installed in the accommodating cavity of the shell (2) and abutting against the side of the light source plate (3) away from the light source.
9. The LED photocatalytic device of claim 1, wherein, The shell comprises a back plate (22) and a pressing plate (21), the pressing plate (21) is detachably connected with the back plate (22), and the light outlet (23) is arranged on the pressing plate (21).