Intelligent driving lamp guide thermoplastic radiator

Abstract

The application belongs to the technical field of heat dissipation, and specifically discloses a heat-dissipating plastic radiator for intelligent driving lamps, which is integrally formed by heat-conducting plastic and comprises a main frame provided with a heat transfer part and fins, wherein the heat transfer part protrudes from the main frame, a raised edge is further arranged around the heat transfer part on the main frame, and a gap between the raised edge and the heat transfer part is a sealed cavity. The integrally formed heat-conducting plastic, the main frame, the heat transfer part and the fins are combined to achieve the effects of light weight, simple processing mode, high processing efficiency and high design freedom. The raised edge and the sealed cavity are arranged to avoid the technical problem that the sealing effect is poor in the prior art, in which an aluminum radiator is directly pressed against a sealing ring through mounting holes on a main frame by screw locking, but when the aluminum radiator is converted into a heat-dissipating plastic radiator, the sealing effect is poor due to the relatively low screw locking force that the plastic material itself can bear.

Description

Technical Field

[0001] This invention belongs to the field of heat dissipation technology, specifically relating to a thermally conductive plastic heat sink for intelligent driving lights. Background Technology

[0002] With the rapid development of intelligent assisted driving (AWD) technology for new energy vehicles in my country, relevant laws and regulations require indicator lights, or AWD lights, to be present during AWD operation. AWD lights typically use LED light sources, and if the heat generated during use is not dissipated in time, it will seriously affect their lifespan.

[0003] In existing technologies, machined aluminum heat sinks are attached to the corresponding positions on the circuit board where the LED light source is located to achieve heat dissipation. However, the processing and post-processing of aluminum heat sinks are complex, resulting in low production efficiency, large weight, and high cost. The processing method of the material limits its structural design to be relatively simple, making it difficult to apply to scenarios with high space requirements and complex structural designs. Summary of the Invention

[0004] To overcome one of the aforementioned technical problems in the prior art, the present invention aims to provide a lightweight, simple, efficient, and highly customizable intelligent driving light heat sink, which is achieved through the following technical solution: A smart driving light thermally conductive plastic radiator is integrally molded from thermally conductive plastic and includes a main frame with a heat transfer part and fins. The heat transfer part protrudes from the main frame, and a raised edge is provided around the heat transfer part on the main frame. The gap between the raised edge and the heat transfer part is a sealed cavity.

[0005] Optionally, the side of the convex edge located on one side of the heat transfer section has one or more peak-valley structures.

[0006] Optionally, the peak-valley structure consists of convex edges and grooves.

[0007] Optionally, the fins are arranged opposite to the heat transfer part, and the back of the heat transfer part is provided with a recess, with the fins disposed in the recess.

[0008] Optionally, the fins include higher-order fins, which correspond to relatively high-temperature positions on the heat transfer section.

[0009] Optionally, the heat transfer section limits and fixes the heat source through a limiting mechanism and a fixing mechanism, respectively.

[0010] Optionally, the heat source includes one or more of a processor chip and LED beads.

[0011] Optionally, the main frame is provided with mounting holes, which can fix the main frame to the counter piece. The counter piece is located on one side of the heat transfer section, and the sealing is achieved by the sealing cavity and the sealing ring inside cooperating with the counter piece.

[0012] Optionally, the heat transfer section may also be provided with a through-hole for wires.

[0013] Optionally, one or more extension positions are provided on one side of the fin.

[0014] Optionally, the fins are arranged in multiple spaced intervals and are parallel to the short side of the main frame.

[0015] Optionally, multiple fins can be interconnected by fins that are perpendicular to the short side of the main frame.

[0016] Compared with existing technologies, this invention achieves lightweight, simple processing, high processing efficiency, and high design freedom by using a one-piece molded thermally conductive plastic combined with the structural design of the main frame, heat transfer part, and fins. Simultaneously, by providing a raised edge around the heat transfer part on the main frame, the gap between the raised edge and the heat transfer part forms a sealing cavity that can accommodate the sealing ring. This avoids the technical problem of poor sealing performance that may exist in existing technologies where aluminum heat sinks directly tighten the sealing ring with screws through mounting holes on the main frame. This is because the plastic material itself has relatively low tolerance to screw tightening force. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of one side of the heat transfer section of the intelligent driving light thermal conductive plastic radiator described in Example 1; Figure 2 This is a schematic diagram of one side of the thermally conductive plastic radiator fins of the intelligent driving light described in Example 1; Figure 3 for Figure 1 Enlarged view of region A in the middle; In the figure, the reference numerals are: main frame 1, protruding edge 101, groove 1011, sealing cavity 102, mounting hole 103, extension position 104, heat transfer part 2, limiting mechanism 201, fixing mechanism 202, wire hole 203, fin 3, and high-order fin 301. Detailed Implementation

[0018] The specific implementation of this application is described in detail below through examples. However, the specific implementation of this application is not intended to limit the technical solution of this application. Any non-substantial changes, such as replacing common technical solutions in the field, using the technical solutions described in the embodiments of this application are within the protection scope of this application. Example 1

[0019] like Figures 1-3The intelligent driving light thermal conductive plastic radiator shown is integrally molded from thermal conductive plastic and includes a main frame 1 with a heat transfer part 2 and fins 3. The heat transfer part 2 protrudes from the main frame 1, and a protruding edge 101 is also provided around the heat transfer part 2 on the main frame 1. The gap between the protruding edge 101 and the heat transfer part 2 is a sealing cavity 102.

[0020] Thermally conductive plastics are high thermally conductive plastics with a thermal conductivity of (3~50) W / mK. Suitable thermally conductive plastics are existing technology and can be purchased commercially.

[0021] In this embodiment, the side of the protruding edge 101 located on one side of the heat transfer section 2 has one or more peak-valley structures. The peak-valley structure is used in conjunction with the sealing cavity 102 formed by the protruding side of the heat transfer section 2. When the sealing ring (not shown) is installed in the sealing cavity 102 and tightened by the screw tightening force of the mounting hole 103, the sealing ring will be compressed and deformed. The valleys in the peak-valley structure can accommodate the excess sealing ring that is squeezed out at this time, preventing different parts of the compressed and deformed sealing ring from affecting each other and reducing the sealing effect. Specifically, the peak-valley structure consists of the protruding edge 101 and the groove 1011.

[0022] In this embodiment, the fins 3 are arranged opposite to the heat transfer part 2, and the back of the heat transfer part 2 is provided with a recess, and the fins 3 are disposed in the recess.

[0023] In this embodiment, the fin 3 includes a higher-order fin 301, which is a part where the height of the fin 3 is higher than that of other fins 3, resulting in better heat dissipation. The higher-order fin 301 corresponds to a relatively high-temperature position on the heat transfer part 2.

[0024] In this embodiment, the heat transfer part 2 limits and fixes the heat source by limiting mechanism 201 and fixing mechanism 202 respectively.

[0025] In this embodiment, the heat source includes one or more of a processor chip and LED beads.

[0026] In this embodiment, the main frame 1 is provided with mounting holes 103, which can fix the main frame 1 to the counter piece. The counter piece is located on one side of the heat transfer part 2, and the sealing is achieved by the sealing cavity 102 and the sealing ring inside it cooperating with the counter piece.

[0027] In this embodiment, the heat transfer part 2 is also provided with a through wire hole 203.

[0028] In this embodiment, one or more extension positions 104 are provided on one side of the fin 3, which can be used to expand the function by connecting with other components. For example, wire clamps can be installed to fix the wiring layout, which is neat and will not affect other functions. If the heat sink temperature is high, if the wiring is attached to the surface of the heat sink fin 3, the insulation outer sheath may age more easily, which may lead to short circuits and other risks, and will greatly reduce the service life.

[0029] In this embodiment, the fins 3 are arranged in multiple spaced intervals and are parallel to the short side of the main frame 1. This effectively avoids the problem of warping during the injection molding process of long, strip-shaped thermally conductive plastic heat sinks, which can lead to uneven heat transfer surfaces that cannot fit tightly to the heat source and are difficult to install. In other embodiments, when the overall size of the intelligent driving light heat sink is small and the aspect ratio is small (i.e., the length and width difference is not significant), this layout may not be used, and the probability of warping and deformation may be low, which is sufficient for normal application.

[0030] In this embodiment, multiple fins 3 are interconnected by fins 3 arranged perpendicularly to the short side of the main frame 1. On the one hand, this increases the mechanical strength of the fins 3. On the other hand, when the heat generated by the heat source is unevenly distributed across the entire radiator, the heat on the high-temperature fins 3 can be transferred to the low-temperature fins 3 through the fins 3 arranged perpendicularly to the short side, thus avoiding local overheating of the radiator and improving the overall heat dissipation effect.

[0031] It should be noted that the components used in the above embodiments can be selected or replaced by those skilled in the art according to their needs, without exceeding the scope of protection of this application.

Claims

1. A smart driving light guide thermoplastic heat sink, characterized by, Made of thermally conductive plastic in one piece, it includes a main frame with a heat transfer part and fins. The heat transfer part protrudes from the main frame, and a raised edge is provided around the heat transfer part on the main frame. The gap between the raised edge and the heat transfer part is a sealed cavity.

2. The smart lamp heat dissipating TPS radiator of claim 1, wherein, The convex edge located on one side of the heat transfer section has one or more peak-valley structures.

3. The smart lamp heat dissipating TPS radiator of claim 2, wherein, The peak-valley structure consists of convex edges and grooves.

4. The smart lamp heat dissipating TPS radiator of claim 1, wherein, The fins are arranged opposite to the heat transfer part, and the back of the heat transfer part has a recess, with the fins located in the recess.

5. The smart lamp heat dissipating TPS radiator of claim 1, wherein, The fins include higher-order fins, which correspond to relatively high-temperature positions on the heat transfer section.

6. The smart lamp heat dissipating TPS radiator of claim 1, wherein, The heat transfer section limits and fixes the heat source through a limiting mechanism and a fixing mechanism, respectively.

7. The smart lamp heat dissipating TPS radiator of claim 6, wherein, The heat source includes one or more of the following: a processor chip and LED beads.

8. The smart lamp heat dissipating TPS radiator of claim 1, wherein, The main frame is provided with mounting holes, which can fix the main frame to the counter piece. The counter piece is located on one side of the heat transfer part, and the sealing is achieved by the sealing cavity and the sealing ring inside it cooperating with the counter piece.

9. The smart lamp heat dissipating TPS radiator of claim 1, wherein, One or more extension positions are also provided on one side of the fin.

10. The smart lamp heat dissipating TPS radiator of claim 1, wherein, The fins are arranged in multiple spaced intervals and are parallel to the short side of the main frame.

11. The intelligent driving light thermally conductive plastic radiator according to claim 10, characterized in that, The multiple fins are interconnected by fins that are arranged perpendicularly to the short side of the main frame.

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