Reflector and LED light source assembly
By using a reflector instead of the lens, the leakage and light efficiency loss caused by the lens positioning holes is solved, efficient optical design and simplified manufacturing are achieved, and labor costs are reduced.
Patent Information
- Application Number
- CN202422235520.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-12
AI Technical Summary
In the prior art, the leakage risk and light efficiency loss caused by the lens positioning holes, and the lens installation is complicated, which increases labor and time costs.
Reflector plate is used instead of lenses. The reflector plate is equipped with a conical reflector cup and a fixed structure to cover the surface of the LED lamp plate, combined with the sink to dissipate heat, and use AL7075-T651 metal alloy to avoid expansion, press strips to fix them, and cancel the lens positioning hole.
Reduces leakage risk, improves light efficiency and light intensity, reduces labor costs, and simplifies the production process.
Smart Images
Figure CN223121263U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery chip processing, in particular to a reflector and an LED light source assembly. Background Art
[0002] During the production process of battery chips, sintering is required. Sintering is to sinter the electrodes printed on the surface of the battery chips at high temperature to form an ohmic contact between the electrodes and the silicon wafers themselves, improve the open-circuit voltage and fill factor of the battery chips, and make the contact of the electrodes have resistance characteristics to achieve high conversion efficiency. At present, the sintering methods used are mostly high-temperature rapid sintering and infrared heating. The above two sintering methods can both be realized by using high-power LED arrays. In order to enable the light emitted by the LED chips to be better output, maximally utilized, and meet the design requirements within the illumination area, it is necessary to design an optical system for the LEDs. Among them, the design during the encapsulation process is called primary optical design; while the optical design carried out outside the LEDs is called secondary optical design. The primary optical design is to ensure the light output quality of each LED lighting device, considering extracting as much light energy emitted from the LED chips as possible. The secondary light distribution design is to consider how to concentrate the light emitted by the LED devices onto the desired illumination area, so that the light energy emitted by the entire system can meet the design requirements. Currently, the LED secondary optical design application for industrial sintering is usually a lens. Because the lens has the characteristics of high temperature resistance, light weight, and more accurate optical angles, and the main material is silica gel, the cost is relatively low after mold opening. However, the labor and time costs required for installing the lens are relatively large. The overall power of traditional industrial sintering furnaces is relatively large, and the number of required LED lamp beads is relatively large. The number of single-strand lenses during lens mold opening is usually not high. Otherwise, the defective rate and damage probability will become higher. During installation, they still need to be placed one by one in a string, and the overall assembly time of the unit is relatively long.
[0003] For high-power LEDs, a copper substrate with thermoelectric separation is usually used as a carrier for heat dissipation treatment. During the use of the lens, positioning holes are required for fixation, and the size is usually 2 mm or even smaller. The copper substrate itself has ductility, and it is difficult to punch precise holes. The number of holes is relatively large and they are close to the LEDs, with more potential hazards.
[0004] After installing the lens, even with the use of positioning holes for fixation, there is still a risk of falling during use. Therefore, in actual use, a layer of glass is usually added outside the lens to fix the lens. However, the light transmittance of the glass usually cannot reach 100%. The light transmittance of high-borosilicate glass with special requirements is only 92%. This means that 8% or more of the light efficiency will be lost after adding the glass to the lens. Therefore, more lamp beads need to be added during design to meet the design requirements.
[0005] High-power LED general packages are usually 5050 or 3535, and their sizes are relatively small. During use, in order to ensure coverage of the lamp beads, the positioning holes of the lens cannot be too far away from the LED. However, for high-power LED arrays operating in an environment of 300V or even higher, if the positioning holes of the lens cannot ensure a sufficient safety distance, high-voltage creepage will occur, leading to leakage in the array and affecting the normal operation of the device. Summary of the Invention
[0006] To this end, the technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a reflector and an LED light source assembly. The reflector replaces the lens, eliminating the lens positioning holes, reducing the manufacturing difficulty of the LED lamp board and also reducing the leakage risk during use.
[0007] In a first aspect, to solve the above technical problem, the present invention provides a reflector, comprising a substrate and a plurality of reflecting cups arranged in an array on the substrate. The reflecting cups are conical. The substrate is provided with a first mounting and fixing hole and a locking and fixing portion. The locking and fixing portion is provided with a second mounting and fixing hole, and a sunken tabletop is provided around the second mounting and fixing hole.
[0008] In an embodiment of the present invention, an avoidance groove is provided at the edge of the substrate for avoiding screws.
[0009] In an embodiment of the present invention, the locking and fixing portion includes a first ear plate and a second ear plate. There are two first ear plates, both arranged on one side of the substrate; there are two second ear plates, both arranged on the other side of the substrate and located on both sides of the avoidance groove.
[0010] In an embodiment of the present invention, a bright chromium layer is coated on the inner wall of the reflecting cup.
[0011] In an embodiment of the present invention, a circle of insulating gaskets is provided around the substrate.
[0012] In a second aspect, to solve the above technical problem, the present invention provides an LED light source assembly, characterized in that it includes a plurality of reflectors as described in any one of claims 1-5, an LED lamp board, and a water tank. The LED lamp board is installed on the water tank through fasteners. The reflectors are arranged side by side on the surface of the LED lamp board to converge the light emitted by the LED lamp board. The water tank is provided with a water inlet and a water outlet, and cooling water is injected into the water tank to dissipate heat from the LED lamp board.
[0013] In an embodiment of the present invention, a plurality of LED lamp beads are provided on the LED lamp board, and the centers of the LED lamp beads correspond one by one to the centers of the reflecting cups on the reflector.
[0014] In one embodiment of the present utility model, a sealing box is fixedly arranged on one side of the water tank for encapsulating the power supply wiring connected to the LED lamp board.
[0015] In one embodiment of the present utility model, it further includes a pressing strip which is arranged at the edge of the reflector for fixedly connecting the reflector and the LED lamp board.
[0016] In one embodiment of the present utility model, a set of counterbores are provided on the pressing strip, and fasteners extend into the counterbores and the first mounting and fixing holes to fix the reflector and the LED lamp board.
[0017] The above technical solution of the present utility model has the following beneficial effects compared with the prior art:
[0018] For a reflector and an LED light source assembly of the present utility model, the reflector replaces the lens, the lens positioning holes can be cancelled, the manufacturing difficulty of the LED lamp board is reduced, and the leakage risk during use is also reduced. The reflector is fixedly covered on the surface of the LED lamp board and covers all the LED lamp beads of the LED lamp board, realizing the secondary optical design of the LED lamp board. The reflector makes the light emitted by the LED lamp beads emit from the reflecting cup, the light is more concentrated, the light intensity and temperature are higher, and the labor cost can be saved to a great extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to make the content of the present utility model easier to be clearly understood, the following further describes the present utility model in detail according to the specific embodiments of the present utility model in conjunction with the drawings, where
[0020] Figure 1 is a top view schematic diagram of the reflector in the first embodiment of the present utility model;
[0021] Figure 2 is a three-dimensional structure schematic diagram of the reflector in the first embodiment of the present utility model;
[0022] Figure 3 is a structure schematic diagram of the LED light source assembly in the second embodiment of the present utility model;
[0023] Figure 4 is a structure schematic diagram of the LED lamp board, the reflector and the pressing plate in the second embodiment of the present utility model;
[0024] Figure 5 is a structure schematic diagram of the LED lamp board in the second embodiment of the present utility model;
[0025] Description of the reference numerals in the drawings: 1. Substrate; 2. Reflector cup; 3. First mounting and fixing hole; 4. Second mounting and fixing hole; 5. Table surface; 6. Avoidance groove; 7. First ear plate; 8. Second ear plate; 100. LED lamp board; 200. Water tank; 201. Water inlet; 202. Water outlet; 300. Sealing box; 301. Connecting wire interface; 400. Press strip; 401. Counterbore. Detailed implementation manners
[0026] The following further describes the present utility model in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the specific embodiments given are not intended to limit the present utility model.
[0027] Embodiment 1
[0028] Refer to Figure 1-2 As shown, a reflector of the present utility model includes a substrate 1 and a plurality of reflector cups 2 arranged in an array on the substrate 1. The reflector cups 2 are conical. The substrate 1 is provided with a first mounting and fixing hole 3 and a locking and fixing portion. The locking and fixing portion is provided with a second mounting and fixing hole 4, and a sunken table surface 5 is provided around the second mounting and fixing hole 4.
[0029] In addition, an avoidance groove 6 is provided at the edge of the substrate 1 for avoiding screws.
[0030] In this embodiment, the locking and fixing portion includes a first ear plate 7 and a second ear plate 8. There are two first ear plates 7, both of which are arranged on one side of the substrate 1; there are two second ear plates 8, both of which are arranged on the other side of the substrate 1 and are located on both sides of the avoidance groove 6.
[0031] Preferably, a chromium layer is coated on the inner wall of the reflector cup 2. The design of the chromium layer can increase the refractive index of the reflector cup 2, enhance the light effect of the LED, and solve the problem of insufficient light effect during the use of the device.
[0032] Furthermore, a circle of insulating gaskets is provided around the substrate 1.
[0033] Embodiment 2
[0034] As Figure 3 and 4 shown, the present utility model provides an LED light source assembly, including a plurality of reflectors described in the embodiments, an LED lamp board 100 and a water tank 200. The LED lamp board 100 is installed on the water tank 200 through fasteners. The reflectors are arranged side by side on the surface of the LED lamp board 100 for concentrating the light emitted by the LED lamp board 100. The water tank 200 is provided with a water inlet 201 and a water outlet 202, and cooling water is injected into the water tank 200 for dissipating heat from the LED lamp board 100.
[0035] When installing the reflector, it is attached to the LED lamp board 100 by screws, avoiding the problem that the reflector is prone to falling off; then the LED lamp board 100 is attached to the water tank 200 by screws. The water inlet 201 and the water outlet 202 of the water tank 200 are respectively connected to a water pump through water pipes, which is used to replace the cooling water in the water tank 200 in real time, effectively ensuring the heat dissipation effect of the water tank 200 on the LED lamp board 100.
[0036] Such as Figure 5 shown, a number of LED lamp beads are provided on the LED lamp board 100, and the centers of the LED lamp beads correspond one by one to the centers of the reflecting cups 2 on the reflector.
[0037] A sealing box 300 is fixedly arranged on one side of the water tank 200 for encapsulating the power supply wiring connected to the LED lamp board 100. A connecting wire interface 301 is provided on the sealing box 300.
[0038] Furthermore, a pressing strip 400 is further included. The pressing strip 400 is arranged at the edge of the reflector for fixedly connecting the reflector and the LED lamp board 100.
[0039] In this embodiment, a set of counterbores 401 are provided on the pressing strip 400, and fasteners extend into the counterbores 401 and the first installation and fixing holes 3 to fix the reflector and the LED lamp board 100.
[0040] In order to avoid the expansion problem of the reflector in a high-temperature environment, AL7075-T651 metal alloy is used for manufacturing. At the same time, the structure of the reflector is changed to single-module coverage, so that multiple reflectors are arranged side by side on the LED lamp board 100 for coverage. By reducing the size of the reflector, the expansion phenomenon is avoided. It has been verified that the reflector of AL7075-T651 + small module can significantly inhibit the expansion phenomenon.
[0041] Obviously, the above embodiments are only examples given for clear illustration, and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.
Claims
1. A reflector, characterized in that: It includes a substrate and a number of reflecting cups arranged in an array on the substrate. The reflecting cups are conical. The substrate is provided with a first mounting and fixing hole and a locking and fixing part. The locking and fixing part is provided with a second mounting and fixing hole, and a sunken tabletop is provided around the second mounting and fixing hole.
2. The reflector according to claim 1, characterized in that: An avoidance groove is provided at the edge of the substrate for avoiding screws.
3. A reflector according to claim 1, characterized in that: The locking and fixing part includes a first ear plate and a second ear plate. There are two first ear plates, both arranged on one side of the substrate; there are two second ear plates, both arranged on the other side of the substrate and located on both sides of the avoidance groove.
4. A reflector according to claim 1, wherein: A bright chromium layer is coated on the inner wall of the reflecting cup.
5. A reflector according to claim 1, characterized in that: A circle of insulating gaskets is provided around the substrate.
6. An LED light source assembly, characterized in that: It includes a number of reflecting plates, an LED lamp board and a water tank as described in any one of claims 1-5. The LED lamp board is installed on the water tank through fasteners. The reflecting plates are arranged side by side on the surface of the LED lamp board to concentrate the light emitted by the LED lamp board. The water tank is provided with a water inlet and a water outlet, and cooling water is injected into the water tank to dissipate heat from the LED lamp board.
7. An LED light source assembly according to claim 6, characterized in that: A number of LED lamp beads are provided on the LED lamp board, and the centers of the LED lamp beads correspond one by one to the centers of the reflecting cups on the reflecting plate.
8. An LED light source assembly according to claim 6, wherein: A sealing box is fixedly arranged on one side of the water tank for encapsulating the power supply wiring connected to the LED lamp board.
9. The LED light source assembly according to claim 8, wherein: It further includes a pressing strip. The pressing strip is arranged at the edge of the reflecting plate for fixedly connecting the reflecting plate and the LED lamp board.
10. An LED light source assembly according to claim 9, characterized in that: A set of counterbores are provided on the pressing strip, and fasteners extend into the counterbores and the first mounting and fixing holes to fix the reflecting plate and the LED lamp board.