A heat dissipation structure of a high-power LED lamp
Patent Information
- Application Number
- CN202522081716.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-28
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-09-28
AI Technical Summary
传统的方式采用散热翅片散热，这样具备一定的散热效果，但是还无法做到快速散热，这制约了LED灯寿命
[0012] 1. In this utility model, the lamp holder can be fixed in a designated position, the aluminum substrate abuts against the limiting ring and is limited by the limiting component to ensure that the aluminum substrate is easy to disassemble and maintain. The lamp cover is connected to the lamp housing by threads, which is also easy to disassemble and maintain. The heat dissipation fins absorb and transfer the heat of the aluminum substrate. When the temperature rises to a specific threshold (usually 30-60℃), the phase change heat dissipation layer will change from solid to liquid, absorbing a large amount of latent heat like a "sponge absorbing water", thereby achieving rapid and efficient heat dissipation of the aluminum substrate. The cooling fan draws in external cold air through the first dustproof net and then blows the cold air onto the heat dissipation fins and the phase change heat dissipation layer, thereby quickly blowing the heat on the heat dissipation fins and the phase change heat dissipation layer out through the second dustproof net, which significantly improves the heat dissipation effect.
Smart Images
Figure CN224756956U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED lighting technology, and in particular to a heat dissipation structure for a high-power LED lamp. Background Technology
[0002] High-power LED lights, due to their high power (typically ≥1W per LED), generate a large amount of heat during operation. If heat dissipation is not timely, the chip junction temperature will rise, severely affecting luminous efficiency, lifespan, and even burning out the device. Therefore, heat dissipation structure is one of the core aspects of high-power LED light design. Traditional methods use heat sinks, which provide some heat dissipation, but cannot achieve rapid heat dissipation, thus limiting the lifespan of the LED light. We know that phase change heat dissipation materials mainly use polymers and organosilicon materials as core substrates, and are made by adding thermally conductive fillers (such as silicon carbide, graphite, etc.) and phase change materials (such as polyethylene glycol, fatty acid esters, etc.). When the temperature rises to a specific threshold (usually 30-60℃), the phase change heat dissipation material changes from a solid to a liquid state, absorbing a large amount of latent heat like a sponge absorbing water. Therefore, we propose a heat dissipation structure for high-power LED lights, applying this technology to LED lights. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a heat dissipation structure for high-power LED lamps.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A heat dissipation structure for a high-power LED lamp includes a lamp housing and an aluminum substrate. The lamp housing is a sleeve-shaped structure. A limiting ring is fixed to the inner wall of the lamp housing. The aluminum substrate is abutted against the limiting ring by a limiting component. LED beads are mounted on one side of the aluminum substrate, and a phase change heat dissipation layer is fixedly attached to the other side of the aluminum substrate. A plurality of heat dissipation fins are fixed on the aluminum substrate, and a cooling fan is mounted on the heat dissipation fins. A first mounting hole is opened at one end of the lamp housing, and a first dustproof mesh is installed in the first mounting hole. A second mounting hole is opened on the side of the lamp housing, and a second dustproof mesh is installed in the second mounting hole.
[0006] Preferably, the limiting component includes a limiting block, a pull rod, a spring, a fixing block, and a pull ring. A sliding hole is provided on the side of the lamp housing. The limiting block is slidably installed in the sliding hole. The aluminum substrate is limited by the limiting block. A fixing block is fixed inside the sliding hole. A pull rod is slidably sleeved inside the fixing block. One end of the pull rod is fixed to the limiting block, and a pull ring is fixed to the other end of the pull rod. A spring is sleeved on the pull rod, and the spring is located between the limiting block and the fixing block.
[0007] Preferably, one end of the lamp housing is fixed with an L-shaped lamp holder, and the lamp holder has bolt holes.
[0008] Preferably, the air outlet of the cooling fan is connected to a conical cover, the side of the conical cover is provided with a first air vent, the conical cover is connected to an annular tube through a duct, the annular tube is fixed on the aluminum substrate, the annular tube and the LED bead are located on the same side of the aluminum substrate, the inner and outer side walls of the annular tube are provided with a second air vent, and the side of the lamp housing is provided with a heat dissipation hole.
[0009] Preferably, the lamp housing is threadedly fitted with a lampshade, the lampshade has a third mounting hole, and a light-transmitting plate is installed in the third mounting hole.
[0010] Preferably, the heat dissipation fins are arranged in a circumferential array, and the cooling fan is located at the center of all the heat dissipation fins.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. In this utility model, the lamp holder can be fixed in a designated position, the aluminum substrate abuts against the limiting ring and is limited by the limiting component to ensure that the aluminum substrate is easy to disassemble and maintain. The lamp cover is connected to the lamp housing by threads, which is also easy to disassemble and maintain. The heat dissipation fins absorb and transfer the heat of the aluminum substrate. When the temperature rises to a specific threshold (usually 30-60℃), the phase change heat dissipation layer will change from solid to liquid, absorbing a large amount of latent heat like a "sponge absorbing water", thereby achieving rapid and efficient heat dissipation of the aluminum substrate. The cooling fan draws in external cold air through the first dustproof net and then blows the cold air onto the heat dissipation fins and the phase change heat dissipation layer, thereby quickly blowing the heat on the heat dissipation fins and the phase change heat dissipation layer out through the second dustproof net, which significantly improves the heat dissipation effect.
[0013] 2. In this utility model, the first and second dustproof nets can prevent external dust from entering and sticking to the heat dissipation fins and phase change heat dissipation layer, thus ensuring the continuous and stable heat dissipation performance of the heat dissipation fins and phase change heat dissipation layer.
[0014] 3. In this utility model, the air blown out by the cooling fan is swept onto the heat dissipation fins and phase change heat dissipation layer through the first row of air holes. The air blown out by the cooling fan is discharged through the air guide pipe and the annular pipe and then through the second row of air holes and swept onto the aluminum substrate on one side of the LED lamp bead, thereby achieving heat dissipation on both sides of the aluminum substrate. Attached Figure Description
[0015] Figure 1 This is a cross-sectional view of a heat dissipation structure for a high-power LED lamp proposed in this utility model.
[0016] Figure 2This is a schematic diagram of the heat dissipation fin arrangement structure of a high-power LED lamp proposed in this utility model.
[0017] Figure 3 This is a schematic diagram of the LED chip arrangement structure of a heat dissipation structure for a high-power LED lamp proposed in this utility model.
[0018] Figure 4 This is a schematic diagram of the annular tube structure of a heat dissipation structure for a high-power LED lamp proposed in this utility model.
[0019] Figure 5 This is a schematic diagram of the limiting component of a heat dissipation structure for a high-power LED lamp proposed in this utility model.
[0020] In the diagram: 1 Lamp housing, 2 First dustproof mesh, 3 Cooling fan, 4 Heat dissipation fins, 5 Phase change heat dissipation layer, 6 Second dustproof mesh, 7 Lamp holder, 8 Lamp cover, 9 Limiting component, 91 Limiting block, 92 Pull rod, 93 Spring, 94 Fixing block, 95 Pull ring, 10 Light-transmitting plate, 11 Heat dissipation hole, 12 Ring tube, 13 LED lamp bead, 14 Aluminum substrate, 15 Limiting ring, 16 Air duct, 17 Conical cover, 18 First exhaust hole, 19 Second exhaust hole. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figure 1-5A heat dissipation structure for a high-power LED lamp includes a lamp housing 1 and an aluminum substrate 14. The lamp housing 1 has a sleeve-shaped structure, and a limiting ring 15 is fixed to the inner wall of the lamp housing 1. The aluminum substrate 14 abuts against the limiting ring 15 through a limiting component 9. The aluminum substrate 14 abuts against the limiting ring 15 and is limited by the limiting component 9 to ensure that the aluminum substrate 14 is easy to disassemble and assemble, and easy to maintain. An LED lamp bead 13 is installed on one side of the aluminum substrate 14, and a phase change heat dissipation layer 5 is fixedly attached to the other side of the aluminum substrate 14. When the temperature rises to a specific threshold (typically 30-60℃), the phase change heat dissipation layer 5 changes from solid to liquid, absorbing a large amount of latent heat like a sponge absorbing water, thus achieving rapid and efficient heat dissipation for the aluminum substrate 14. Several heat dissipation fins 4 are fixed on the aluminum substrate 14, and cooling fans 3 are mounted on the heat dissipation fins 4. The heat dissipation fins 4 are arranged in a circumferential array, absorbing and transferring heat from the aluminum substrate 14. The cooling fans 3 are located in the center of all the heat dissipation fins 4. (Lamp housing 1) One end of the lamp housing 1 has a first mounting hole, in which a first dustproof mesh 2 is installed. The side of the lamp housing 1 has a second mounting hole, in which a second dustproof mesh 6 is installed. The cooling fan 3 draws in external cold air through the first dustproof mesh 2 and then blows the cold air onto the heat dissipation fins 4 and the phase change heat dissipation layer 5. This allows the heat on the heat dissipation fins 4 and the phase change heat dissipation layer 5 to be quickly blown out through the second dustproof mesh 6, significantly improving the heat dissipation effect. At the same time, the first dustproof mesh 2 and the second dustproof mesh 6 prevent external dust from entering and sticking to the heat dissipation fins 4 and the phase change heat dissipation layer 5, ensuring the continuous and stable heat dissipation performance of the heat dissipation fins 4 and the phase change heat dissipation layer 5. The lamp housing 1 is threadedly connected to the lamp cover 8, which is connected to the lamp housing 1 by threads, making disassembly and maintenance convenient. The lamp cover 8 has a third mounting hole, in which a light-transmitting plate 10 is installed. One end of the lamp housing 1 is fixed with an L-shaped lamp holder 7, which has bolt holes and can be fixed in a designated position.
[0023] Reference Figure 5 The limiting component 9 includes a limiting block 91, a pull rod 92, a spring 93, a fixing block 94, and a pull ring 95. A sliding hole is provided on the side of the lamp housing 1. The limiting block 91 is slidably installed in the sliding hole. The aluminum substrate 14 is limited by the limiting block 91. The fixing block 94 is fixed inside the sliding hole. The pull rod 92 is slidably sleeved inside the fixing block 94. One end of the pull rod 92 is fixed to the limiting block 91, and the other end of the pull rod 92 is fixed to the pull ring 95. The spring 93 is sleeved on the pull rod 92. The spring 93 is located between the limiting block 91 and the fixing block 94. The pull rod 92 is pulled by the pull ring 95. At this time, the spring 93 is compressed, and the pull rod 92 pulls the limiting block 91 into the sliding hole. At this time, the aluminum substrate 14 can be removed. When the aluminum substrate 14 abuts against the limiting ring 15, the pull ring 95 is released. Under the restoring force of the spring 93, the limiting block 91 extends out of the sliding hole, which can block and limit the aluminum substrate 14.
[0024] Reference Figure 4The air outlet of the cooling fan 3 is connected to a conical cover 17. The side of the conical cover 17 is provided with a first exhaust hole 18. The conical cover 17 is connected to an annular pipe 12 through a guide pipe 16. The annular pipe 12 is fixed on the aluminum substrate 14. The annular pipe 12 and the LED lamp bead 13 are located on the same side of the aluminum substrate 14. The inner and outer side walls of the annular pipe 12 are provided with second exhaust holes 19. The side of the lamp housing 1 is provided with a heat dissipation hole 11. The air blown out by the cooling fan 3 is blown onto the heat dissipation fins 4 and the phase change heat dissipation layer 5 through the first exhaust hole 18. The air blown out by the cooling fan 3 is discharged through the guide pipe 16, the annular pipe 12 and the second exhaust hole 19 and blown onto the aluminum substrate 14 on one side of the LED lamp bead 13, thereby achieving heat dissipation on both sides of the aluminum substrate 14.
[0025] Working principle: During use, the lamp holder 7 can be fixed in a designated position. The aluminum substrate 14 abuts against the limiting ring 15 and is limited by the limiting component 9, ensuring that the aluminum substrate 14 is easy to disassemble and maintain. The lamp cover 8 is connected to the lamp housing 1 by threads, making disassembly and maintenance convenient. The heat dissipation fins 4 absorb and transfer the heat of the aluminum substrate 14. When the temperature rises to a specific threshold (usually 30-60℃), the phase change heat dissipation layer 5 changes from solid to liquid, absorbing a large amount of latent heat like a "sponge absorbing water," thereby achieving rapid and efficient heat dissipation of the aluminum substrate 14. The cooling fan 3 draws in external cold air through the first dustproof net 2 and then blows the cold air onto the heat dissipation fins 4 and the phase change heat dissipation layer 5. This allows the heat from the heat sink fins 4 and the phase change heat dissipation layer 5 to be quickly blown out through the second dustproof net 6, significantly improving the heat dissipation effect. At the same time, the first dustproof net 2 and the second dustproof net 6 prevent external dust from entering and sticking to the heat sink fins 4 and the phase change heat dissipation layer 5, ensuring the continuous and stable heat dissipation performance of the heat sink fins 4 and the phase change heat dissipation layer 5. The air blown out by the cooling fan 3 is blown onto the heat sink fins 4 and the phase change heat dissipation layer 5 through the first exhaust hole 18. The air blown out by the cooling fan 3 is discharged through the air guide pipe 16, the annular pipe 12 and the second exhaust hole 19 and blown onto the aluminum substrate 14 on one side of the LED lamp bead 13, thereby achieving heat dissipation from both sides of the aluminum substrate 14.
[0026] The operating principle of the limiting component 9 is as follows: the pull ring 95 pulls the pull rod 92, at which time the spring 93 is compressed, and the pull rod 92 pulls the limiting block 91 into the sliding hole. At this time, the aluminum substrate 14 can be removed. When the aluminum substrate 14 abuts against the limiting ring 15, the pull ring 95 is released. Under the restoring force of the spring 93, the limiting block 91 extends out of the sliding hole, which can block and limit the aluminum substrate 14.
[0027] It should be noted that the phase change heat dissipation layer (5) in this scheme mainly uses high molecular polymers and organosilicon materials as the core substrate, and is made by adding thermally conductive fillers (such as silicon carbide, graphite, etc.) and phase change materials (such as polyethylene glycol, fatty acid esters, etc.).
[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A heat dissipation structure for a high-power LED lamp, comprising a lamp housing (1) and an aluminum substrate (14), characterized in that, The lamp housing (1) is a sleeve-shaped structure. A limiting ring (15) is fixed on the inner wall of the lamp housing (1). The aluminum substrate (14) is abutted against the limiting ring (15) by a limiting component (9). An LED lamp bead (13) is installed on one side of the aluminum substrate (14). A phase change heat dissipation layer (5) is fixedly attached to the other side of the aluminum substrate (14). Several heat dissipation fins (4) are fixed on the aluminum substrate (14). A cooling fan (3) is installed on the heat dissipation fins (4). A first mounting hole is opened at one end of the lamp housing (1). A first dustproof mesh (2) is installed in the first mounting hole. A second mounting hole is opened on the side of the lamp housing (1). A second dustproof mesh (6) is installed in the second mounting hole.
2. The heat dissipation structure for a high-power LED lamp according to claim 1, characterized in that, The limiting component (9) includes a limiting block (91), a pull rod (92), a spring (93), a fixing block (94), and a pull ring (95). The lamp housing (1) has a sliding hole on its side. The limiting block (91) is slidably installed in the sliding hole. The aluminum substrate (14) is limited by the limiting block (91). The fixing block (94) is fixed inside the sliding hole. The pull rod (92) is slidably sleeved in the fixing block (94). One end of the pull rod (92) is fixed on the limiting block (91). The other end of the pull rod (92) is fixed with a pull ring (95). The spring (93) is sleeved on the pull rod (92). The spring (93) is located between the limiting block (91) and the fixing block (94).
3. The heat dissipation structure for a high-power LED lamp according to claim 1, characterized in that, One end of the lamp housing (1) is fixed with an L-shaped lamp holder (7), and the lamp holder (7) has bolt holes.
4. The heat dissipation structure for a high-power LED lamp according to claim 1, characterized in that, The air outlet of the cooling fan (3) is connected to a conical cover (17). The side of the conical cover (17) is provided with a first exhaust hole (18). The conical cover (17) is connected to an annular pipe (12) through a duct (16). The annular pipe (12) is fixed on the aluminum substrate (14). The annular pipe (12) and the LED lamp bead (13) are located on the same side of the aluminum substrate (14). The inner and outer side walls of the annular pipe (12) are provided with a second exhaust hole (19). The side of the lamp housing (1) is provided with a heat dissipation hole (11).
5. The heat dissipation structure for a high-power LED lamp according to claim 1, characterized in that, The lamp housing (1) is threadedly fitted with a lampshade (8), and a third mounting hole is provided on the lampshade (8), in which a light-transmitting plate (10) is installed.
6. The heat dissipation structure for a high-power LED lamp according to claim 1, characterized in that, The heat dissipation fins (4) are arranged in a circumferential array, and the heat dissipation fan (3) is located in the center of all the heat dissipation fins (4).