Efficient heat dissipation type flexible circuit board of LED headlamp

Abstract

The utility model relates to the technical field of flexible circuit boards, and discloses an efficient heat dissipation type flexible circuit board of an LED headlamp, which comprises a circuit layer, a protective layer is arranged outside the circuit layer, a plurality of heat absorption columns are uniformly arranged on the end surfaces of the two sides of the protective layer at intervals, heat dissipation rings are arranged outside the plurality of heat absorption columns, and the heat dissipation rings are connected with the protective layer. And heat dissipation cylinders are uniformly arranged outside the plurality of heat dissipation rings at intervals. According to the utility model, when the device is used, heat is absorbed through the heat absorption columns which are uniformly arranged at the upper end and the lower end of the protective layer outside the circuit layer at intervals, and heat is dissipated through the heat dissipation rings and the heat dissipation cylinders which are sleeved outside the heat absorption columns, so that the heat dissipation area is increased, the heat is widely dissipated to the surrounding environment, and the heat dissipation effect is improved; the heat dissipation ring can rotate outside the heat absorption column, breaks heat accumulation, promotes air flow, accelerates heat dissipation, improves the heat dissipation efficiency, prevents the circuit board from being damaged due to overheating, and prolongs the service life.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible circuit boards, in particular to a high-efficiency heat-dissipating flexible circuit board for an LED headlamp. Background Art

[0002] The highly efficient heat-dissipating flexible printed circuit board (FPC) for LED headlights is a circuit board specifically designed for LED headlights. This FPC offers high reliability and excellent flexibility, adapting to the complex installation environments and operating conditions of automotive headlights. Its thin and lightweight design also helps reduce the overall weight of the headlights, meeting the automotive industry's pursuit of lightweighting.

[0003] Flexible circuit boards (FPCBs) generate heat during use. However, most current heat dissipation methods rely primarily on heat exchange between the board itself and the air, which is relatively inefficient. Overtime use can lead to overheating and damage to the FPCBs due to inadequate heat dissipation, shortening their service life.

[0004] Therefore, those skilled in the art provide a high-efficiency heat dissipation flexible circuit board for an LED headlamp to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the present utility model is to address the shortcomings of the prior art and to propose an efficient heat-dissipating flexible circuit board for LED headlights. When in use, the device absorbs heat through heat-absorbing columns evenly spaced at the upper and lower ends of the protective layer outside the circuit layer. At the same time, heat is dissipated through the heat-dissipating rings and heat-dissipating tubes sleeved on the outside of the heat-absorbing columns, thereby increasing the heat dissipation area, allowing heat to be widely dissipated into the surrounding environment, and improving the heat dissipation effect. In addition, the heat-dissipating ring can rotate outside the heat-absorbing column to break up heat accumulation, promote air flow, accelerate heat dissipation, improve heat dissipation efficiency, avoid damage to the circuit board due to overheating, and extend its service life.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A high-efficiency heat-dissipating flexible circuit board for an LED headlamp, comprising a circuit layer, a protective layer disposed on the exterior of the circuit layer, a plurality of heat-absorbing columns evenly spaced apart on both side end surfaces of the protective layer, a heat-dissipating ring disposed on the exterior of each of the plurality of heat-absorbing columns, heat-dissipating cylinders evenly spaced apart on the exterior of the plurality of heat-dissipating rings, an anti-interference layer disposed on the exterior of the circuit layer, a corrosion-resistant layer disposed on the exterior of the anti-interference layer, and a fire-proof layer disposed on the exterior of the corrosion-resistant layer;

[0008] Through the above technical solution, when the device is in use, heat is absorbed by the heat-absorbing columns evenly spaced at the upper and lower ends of the protective layer outside the circuit layer, and heat is dissipated by the heat dissipation ring and the heat dissipation tube outside the heat-absorbing columns, thereby increasing the heat dissipation area, allowing heat to be widely dissipated to the surrounding environment, and improving the heat dissipation effect. In addition, the heat dissipation ring can rotate outside the heat-absorbing column to break up heat accumulation, promote air flow, accelerate heat dissipation, improve heat dissipation efficiency, avoid damage to the circuit board due to overheating, and extend its service life.

[0009] Furthermore, the plurality of heat absorbing columns are rotatably connected to the heat dissipation ring;

[0010] The above technical solution helps to break up heat accumulation, promote air flow, accelerate heat dissipation, improve heat dissipation efficiency, effectively avoid damage to the circuit board caused by excessive heat, and extend its service life.

[0011] Furthermore, the number of the upper heat dissipation tubes of the plurality of heat dissipation rings is four, and the angle between each heat dissipation tube and the adjacent heat dissipation tube is 90 degrees;

[0012] Through the above technical solution, the angle between each heat dissipation tube and the adjacent heat dissipation tube is 90 degrees, so that heat can be dissipated more widely to the surrounding environment, improving the heat dissipation effect and ensuring that the device can still operate stably in a high temperature environment.

[0013] Furthermore, the anti-interference layers are all made of polyimide material;

[0014] Through the above technical solution, the polyimide material has good electromagnetic shielding performance, can ensure the stability of signal transmission, and improve the reliability and safety of the overall circuit.

[0015] Furthermore, the corrosion-resistant layers are all made of epoxy resin material;

[0016] Through the above technical solution, the epoxy resin material has excellent chemical corrosion resistance and can resist the erosion of various chemical substances, which helps to extend the service life of the circuit board and enhance the durability of the device.

[0017] Furthermore, the fireproof layers are made of polyester resin material;

[0018] Through the above technical solution, the polyester resin material has good flame retardant properties, can prevent the occurrence of fire in extreme cases, provide a safety barrier for the circuit board, and improve the safety of the device.

[0019] The utility model has the following beneficial effects:

[0020] 1. This utility model proposes a highly efficient heat-dissipating flexible circuit board for an LED headlamp. When in use, the device absorbs heat through heat-absorbing columns evenly spaced at the upper and lower ends of a protective layer provided outside the circuit layer. Simultaneously, heat is dissipated through heat-dissipating rings and heat-dissipating tubes externally mounted on the heat-absorbing columns. This increases the heat dissipation area, allowing heat to be widely dissipated into the surrounding environment, thereby enhancing the heat dissipation effect. Furthermore, the heat-dissipating rings can rotate outside the heat-absorbing columns, breaking up heat accumulation, promoting air flow, accelerating heat dissipation, improving heat dissipation efficiency, preventing damage to the circuit board due to overheating, and extending its service life.

[0021] 2. The utility model proposes a high-efficiency heat-dissipating flexible circuit board for LED headlights. When in use, the device can effectively prevent electromagnetic interference and ensure stable signal transmission through the anti-interference layer, corrosion-resistant layer and fire-proof layer. At the same time, it can also improve the chemical corrosion resistance of the circuit board and extend its service life. In addition, it has excellent flame retardant properties and can prevent fire in extreme cases, greatly improving the durability and safety of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an axonometric view of a high-efficiency heat dissipation flexible circuit board for an LED headlamp proposed in the present invention;

[0023] Figure 2 This is an exploded view of a high-efficiency heat dissipation flexible circuit board for an LED headlamp proposed in the present invention;

[0024] Figure 3 This is a side cross-sectional view of a high-efficiency heat dissipation flexible circuit board for an LED headlamp proposed in the present invention;

[0025] Figure 4 This is a top-sectional view of a high-efficiency heat-dissipating flexible circuit board for an LED headlamp proposed in the present invention.

[0026] Legend:

[0027] 1. Circuit layer; 2. Protective layer; 3. Heat-absorbing column; 4. Heat dissipation ring; 5. Heat dissipation tube; 6. Anti-interference layer; 7. Corrosion-resistant layer; 8. Fire-proof layer. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the specific embodiments of the present invention to clearly and completely describe the technical solutions in the specific embodiments of the present invention. Obviously, the specific embodiments described are only part of the specific embodiments of the present invention, not all of the specific embodiments. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Reference Figure 1-4 The present invention provides a specific embodiment: a high-efficiency heat-dissipating flexible circuit board for an LED headlamp, comprising a circuit layer 1, a protective layer 2 disposed on the outside of the circuit layer 1, a plurality of heat-absorbing columns 3 evenly spaced apart on both side end surfaces of the protective layer 2, a heat-dissipating ring 4 disposed on the outside of each of the plurality of heat-absorbing columns 3, heat-dissipating tubes 5 evenly spaced apart on the outside of the plurality of heat-dissipating rings 4, an anti-interference layer 6 disposed on the outside of the anti-interference layer 6, a corrosion-resistant layer 7 disposed on the outside of the corrosion-resistant layer 7, and a fire-proof layer 8 disposed on the outside of the corrosion-resistant layer 7;

[0030] When the device is in use, heat is absorbed by the heat-absorbing columns 3 evenly spaced at the upper and lower ends of the protective layer 2 outside the circuit layer 1. At the same time, heat is dissipated through the heat dissipation ring 4 and the heat dissipation tube 5 sleeved on the outside of the heat-absorbing columns 3, thereby increasing the heat dissipation area, allowing heat to be widely dissipated into the surrounding environment, and improving the heat dissipation effect. In addition, the heat dissipation ring 4 can rotate outside the heat-absorbing column 3 to break up heat accumulation, promote air flow, accelerate heat dissipation, improve heat dissipation efficiency, avoid damage to the circuit board due to overheating, and extend its service life.

[0031] The plurality of heat-absorbing columns 3 and the heat-dissipating rings 4 are all rotatably connected, which helps to break the heat accumulation, promote air flow, accelerate the heat dissipation, improve the heat dissipation efficiency, effectively avoid the damage of the circuit board caused by excessive heat, and extend its service life. The number of heat-dissipating tubes 5 at the upper ends of the plurality of heat-dissipating rings 4 is four, and the angle between each heat-dissipating tube 5 and the adjacent heat-dissipating tube 5 is 90 degrees. The angle between each heat-dissipating tube 5 and the adjacent heat-dissipating tube 5 is 90 degrees, so that the heat can be more widely dissipated to the surrounding environment, thereby improving the heat dissipation effect and ensuring that the device can still operate stably in a high-temperature environment and prevent interference. Layer 6 is made of polyimide material, which has good electromagnetic shielding properties, can ensure the stability of signal transmission, and improve the reliability and safety of the overall circuit. The corrosion-resistant layer 7 is made of epoxy resin material, which has excellent chemical corrosion resistance and can resist the erosion of various chemicals, which helps to extend the service life of the circuit board and enhance the durability of the device. The fireproof layer 8 is made of polyester resin material, which has good flame retardant properties and can prevent the occurrence of fire in extreme cases, providing a safety barrier for the circuit board and improving the safety of the device.

[0032] Working principle: When the device is in use, the heat generated during the use of the circuit layer 1 is absorbed by the heat-absorbing columns 3 evenly spaced at the upper and lower ends of the protective layer 2 outside the circuit layer 1. Subsequently, these heat-absorbing columns 3 are cooled through the heat dissipation ring 4 sleeved on the outside and the heat dissipation tubes 5 evenly spaced outside the heat dissipation ring 4, which increases the heat dissipation area of the entire device, allowing heat to be more widely dissipated to the surrounding environment, thereby improving the heat dissipation effect. In addition, the heat dissipation ring 4 can rotate outside the heat-absorbing column 3, which helps to break up heat accumulation, promote air flow, accelerate heat dissipation, improve heat dissipation efficiency, effectively avoid damage to the circuit board caused by excessive heat, and extend its service life. At the same time, the anti-interference layer can effectively prevent electromagnetic interference and ensure stable signal transmission. The corrosion-resistant layer 7 can also improve the chemical corrosion resistance of the circuit board and extend its service life. In addition, the fireproof layer 8 also has excellent flame retardant properties, which can prevent fire in extreme cases, greatly improving the durability and safety of the circuit board.

[0033] Finally, it should be noted that the above is only a preferred specific implementation method of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned specific implementation methods, those skilled in the art can still modify the technical solutions described in the aforementioned specific implementation methods or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-efficiency heat-dissipating flexible circuit board for an LED headlamp, comprising a circuit layer (1), characterized in that: A protective layer (2) is provided on the outside of the circuit layer (1), a plurality of heat-absorbing columns (3) are evenly spaced on both side end surfaces of the protective layer (2), a heat dissipation ring (4) is provided on the outside of the plurality of heat-absorbing columns (3), a heat dissipation cylinder (5) is evenly spaced on the outside of the plurality of heat dissipation rings (4), an anti-interference layer (6) is provided on the outside of the anti-interference layer (6), a corrosion-resistant layer (7) is provided on the outside of the corrosion-resistant layer (7), and a fire-proof layer (8) is provided on the outside of the corrosion-resistant layer (7).

2. The high-efficiency heat dissipation flexible circuit board for an LED headlamp according to claim 1, characterized in that: The plurality of heat-absorbing columns (3) and the heat-dissipating ring (4) are all rotatably connected.

3. The high-efficiency heat dissipation flexible circuit board for an LED headlamp according to claim 1, characterized in that: The number of the upper end heat dissipation tubes (5) of the plurality of heat dissipation rings (4) is four, and the angle between each heat dissipation tube (5) and the adjacent heat dissipation tube (5) is 90 degrees.

4. The high-efficiency heat dissipation flexible circuit board for an LED headlamp according to claim 1, characterized in that: The anti-interference layers (6) are all made of polyimide material.

5. The high-efficiency heat dissipation flexible circuit board for an LED headlamp according to claim 1, characterized in that: The corrosion-resistant layers (7) are all made of epoxy resin material.

6. The high-efficiency heat dissipation flexible circuit board for an LED headlamp according to claim 1, characterized in that: The fireproof layers (8) are all made of polyester resin material.

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