Graphene heat-dissipation LED car light

Abstract

The utility model discloses a kind of graphene heat dissipation LED car lights, comprising: LED lamp panel upper and lower surface is separately provided with LED lamp pearl, the surface of LED lamp panel is provided with first graphene film;Carding seat is provided with insertion hole, first graphene film and insertion hole inner side wall contact;Radiator is connected in carding seat right side, radiator includes heat dissipation seat and several radiating fins;Shell is connected in radiator right side, radiating fin is located in shell, shell inside right side is provided with the heat dissipation fan for blowing to radiating fin;Control circuit board is located between carding seat and heat dissipation seat, and with the right end surface of LED lamp panel contact, heat dissipation fan and LED lamp pearl are electrically connected with control circuit board respectively.The heat generated after lighting on LED lamp pearl can be quickly conducted to carding seat and heat dissipation seat by graphene film, cooperate heat dissipation fan to blow radiating fin, realize high-efficiency heat dissipation, improve the heat dissipation effect of LED car light, ensure that LED lamp pearl brightness is not affected.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to a graphene heat dissipation LED automotive light. Background Technology

[0002] Automotive lights refer to the lights on a vehicle. Existing automotive lights generally include a light panel, a control circuit board connected to one side of the light panel, a heat sink, and a cooling fan. A thermistor is connected in series in the circuit connecting the control circuit board and the LED beads on the light panel. When the LED beads on the light panel are lit, the heat is transferred to the control circuit board and the heat sink, and then blown onto the heat sink by the cooling fan for cooling. To improve heat dissipation, copper strips are placed on the light panel that contact the heat sink to enhance heat transfer and thus improve heat dissipation performance. However, this heat dissipation structure is still not ideal in summer; excessively high temperatures can cause the LED beads to lose brightness, affecting illumination. Therefore, designing an automotive light with better heat dissipation performance has become an urgent technical problem to be solved. Utility Model Content

[0003] In order to overcome the existing technical defects, the purpose of this utility model is to provide a graphene heat dissipation LED automotive light to solve the above-mentioned technical problems.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0005] According to one aspect of this utility model, a graphene heat dissipation LED automotive light is designed, comprising:

[0006] An LED light panel is provided with LED beads on its top and bottom surfaces, and a first graphene film is provided on the surface of the LED light panel.

[0007] The mounting base is provided with a plug hole, and the right end of the LED light board is inserted into the plug hole, with the first graphene film in contact with the inner wall of the plug hole;

[0008] A heat sink is connected to the right side of the mounting base. The heat sink includes a heat sink base and a plurality of heat sink fins disposed on the right side of the heat sink base.

[0009] The outer casing is connected to the right side of the heat sink. The outer casing is hollow, with an air inlet on the right side and an air outlet on the left side. The heat sink is located inside the outer casing, and a cooling fan for blowing air onto the heat sink is provided on the right side inside the outer casing.

[0010] The control circuit board is located between the mounting base and the heat sink, and is in contact with the right end face of the LED light board. The cooling fan and the LED beads are electrically connected to the control circuit board.

[0011] By adopting the above technical solution, a first graphene film is set on the surface of the LED light board. The first graphene film is in contact with the inner wall of the insertion hole on the mounting base. Since the thermal conductivity of the graphene film is much higher than that of copper, the heat generated when the LED light bead is lit can be quickly conducted to the mounting base and heat sink through the graphene film. Combined with the cooling fan blowing air onto the heat sink, efficient heat dissipation is achieved, improving the heat dissipation effect of the LED automotive light and ensuring that the brightness of the LED light bead is not affected.

[0012] To better address the aforementioned technical deficiencies, this utility model also offers a superior technical solution:

[0013] In some embodiments, a second graphene film is disposed on both the right side wall of the mounting base and the side wall of the insertion hole, with the first graphene film in contact with the second graphene film. Due to the high thermal conductivity of the graphene film, when the LED bead is lit, the heat conducted to the first graphene film can be quickly conducted to the heat sink via the second graphene film, resulting in high heat transfer efficiency and further improving the heat dissipation effect of the LED automotive light.

[0014] In some embodiments, the mounting base is made of metal, and the top and bottom surfaces of the LED light board are respectively provided with heat-conducting portions that are arc-shaped with the left end profile smaller than the right end profile. The heat-conducting portions are integral with the mounting base and are in contact with the first graphene film. The heat-conducting portions allow the heat generated by the LED beads on the light board after lighting to be conducted to them and then to the heat sink, which is beneficial for heat transfer and heat dissipation.

[0015] In some embodiments, a third graphene film is disposed on the surface of the heat-conducting part, which is in contact with the first graphene film. This enables rapid heat transfer and dissipation, further improving the heat dissipation effect.

[0016] In some embodiments, a groove is provided on the left side of the heat sink, and the control circuit board is located in the groove. The left side of the control circuit board contacts the mounting base, and the right side contacts the heat sink. Insulating thermally conductive silicone is provided between the left side of the control circuit board and the mounting base, and between the right side of the control circuit board and the heat sink. This improves heat transfer efficiency and facilitates heat dissipation.

[0017] In some embodiments, the heat sink has a reservoir for storing coolant. The outlet of the reservoir is connected to the inlet of a circulation pump. A metal tube is installed inside the LED light panel. The left end of the metal tube has a reciprocating bend. The outlet of the circulation pump is connected to the inlet of the right end of the metal tube, and the outlet of the right end of the metal tube is connected to the return port of the reservoir. The circulation pump drives the coolant in the reservoir into the metal tube and back into the reservoir. This allows for rapid liquid cooling to the heat sink and heat sink fins, further improving the heat dissipation effect of the LED automotive light. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of a graphene heat dissipation LED automotive lamp according to one embodiment of this utility model;

[0019] Figure 2 A schematic diagram of the structure of a graphene-heat-dissipating LED automotive light from another perspective;

[0020] Figure 3 This is a schematic diagram of the LED light board and heat sink.

[0021] Figure 4 A schematic diagram of the exploded structure of a graphene-heat-dissipating LED automotive light;

[0022] Figure 5 A schematic diagram of the structure of a heat sink, circulation pump and metal pipe for another embodiment of the graphene heat dissipation LED automotive light provided by this utility model.

[0023] Figure label:

[0024] 1. LED light board; 11. LED beads; 2. Snap-on socket; 21. Insertion hole; 22. Snap-on block; 23. Heat-conducting part; 3. Heat sink; 31. Heat sink base; 32. Heat sink fin; 4. Housing; 5. Control circuit board; 6. Silicone sealing ring; 7. Cooling fan; 8. Circulation pump; 9. Metal tube; 91. Reciprocating bending part. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, connecting, and fixing should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Example 1

[0029] refer to Figures 1 to 4 As shown, the present invention provides a graphene heat dissipation LED automotive light, comprising: an LED light board 1, a mounting bracket 2, a heat sink 3, a housing 4, and a control circuit board 5.

[0030] LED beads 11 are respectively disposed on the upper and lower surfaces of the LED light board 1. A first graphene film is disposed on the surface of the LED light board 1. Further, the first graphene film is disposed on the upper and lower surfaces of the LED light board 1, or all surfaces of the LED light board 1 are disposed on the first graphene film. In this embodiment, it is preferred that all surfaces of the LED light board 1 are disposed on the first graphene film, that is, the upper surface, lower surface and peripheral side surfaces of the LED light board 1 are all disposed on the first graphene film. Of course, an insulating and heat-conducting layer is provided between the circuit on the LED light board 1 and the first graphene film.

[0031] The card holder 2 is provided with a plug hole 21. A second graphene film is provided on both the right side wall of the card holder 2 and the side wall of the plug hole 21. The right end of the LED light board 1 is inserted into the plug hole 21. The first graphene film is in contact with the second graphene film on the inner side wall of the plug hole 21.

[0032] The mounting base 2 is made of metal, specifically aluminum, aluminum alloy, or copper, etc. Two, three, or four snap-fit ​​blocks 22 are distributed around the left circumference of the mounting base 2. A silicone sealing ring 6 is fitted on the left end of the mounting base 2. The mounting base 2 is used to rotate and snap-fit ​​with the snap-fit ​​groove on the headlight housing. After snap-fit, the silicone sealing ring 6 seals against the headlight housing to achieve a seal.

[0033] The top and bottom surfaces of the LED light panel 1 are respectively provided with heat-conducting parts 23, which have an arc-shaped surface and a left-end profile smaller than the right-end profile. The heat-conducting parts 23 are integral with the mounting base 2. The heat-conducting parts 23 are in contact with the first graphene film, and a third graphene film is provided on the surface of the heat-conducting parts 23, which is in contact with the first graphene film.

[0034] The heat sink 3 is connected to the right side of the mounting base 2. The heat sink 3 includes a heat sink base 31 and several heat sink fins 32 disposed on the right side of the heat sink base 31. The heat sink base 31 is fixed to the mounting base 2 by screws, and the heat sink base 31 is in contact with the second graphene film on the right side surface of the mounting base 2. The heat sink 3 is made of aluminum, copper, or aluminum alloy, etc., with copper being the preferred material.

[0035] The outer casing 4 is connected to the right side of the heat sink 3. The outer casing 4 is hollow, with an air inlet on the right side and an air outlet on the left side. The heat sink 32 is located inside the outer casing 4. A cooling fan 7 is provided on the right side inside the outer casing 4 to blow air onto the heat sink 32. The air blown out by the cooling fan 7 passes through the heat sink 32 and is output from the air outlet at the left end of the outer casing 4.

[0036] The control circuit board 5 is located between the mounting base 2 and the heat sink 31. Furthermore, a groove is provided on the left side of the heat sink 31, and the control circuit board 5 is located in the groove. The left side of the control circuit board 5 contacts and is fixed to the mounting base 2, and the right side contacts the heat sink 31. Insulating and thermally conductive silicone is provided between the left side of the control circuit board 5 and the mounting base 2, and between the right side of the control circuit board 5 and the heat sink 31.

[0037] The cooling fan 7 and the LED beads 11 are electrically connected to the control circuit board 5 respectively. A thermistor is connected in series in the circuit between the LED beads 11 and the control circuit board 5. The thermistor is mounted on the control circuit board.

[0038] Example 2

[0039] refer to Figure 5 As shown, another graphene heat dissipation LED automotive lamp provided by this utility model differs from Embodiment 1 in that: the heat sink 31 has a liquid storage chamber for storing coolant, which may be deionized water, distilled water, liquid metal coolant, or ethylene glycol solution, etc. The heat sink 31 is provided with an outlet and a return port communicating with the liquid storage chamber. The outlet of the liquid storage chamber is connected to and communicates with the inlet of the circulation pump 8. A metal tube 9 is provided inside the LED lamp board, and the left end of the metal tube 9 has a reciprocating bend 91. The outlet of the circulating pump 8 is connected to the inlet at the right end of the metal pipe 9, and the outlet at the right end of the metal pipe 9 is connected to the return port of the storage chamber. The circulating pump 8 is used to drive the coolant in the storage chamber into the metal pipe 9 and back to the storage chamber. The metal pipe 9 is a stainless steel pipe or an aluminum alloy pipe, etc., preferably a stainless steel pipe. The middle part of the reciprocating bending part 91 corresponds to the LED beads on the LED light board. The reciprocating bending part 91 allows the coolant to absorb more heat, which is beneficial to transfer the heat to the radiator through the coolant and improve the heat dissipation performance.

[0040] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A graphene-based heat-dissipating LED automotive light, characterized in that, include: An LED light panel is provided with LED beads on its top and bottom surfaces, and a first graphene film is provided on the surface of the LED light panel. The mounting base is provided with a plug hole, and the right end of the LED light board is inserted into the plug hole, with the first graphene film in contact with the inner wall of the plug hole; A heat sink is connected to the right side of the mounting base. The heat sink includes a heat sink base and a plurality of heat sink fins disposed on the right side of the heat sink base. The outer casing is connected to the right side of the heat sink. The outer casing is hollow, with an air inlet on the right side and an air outlet on the left side. The heat sink is located inside the outer casing, and a cooling fan for blowing air onto the heat sink is provided on the right side inside the outer casing. The control circuit board is located between the mounting base and the heat sink, and is in contact with the right end face of the LED light board. The cooling fan and the LED beads are electrically connected to the control circuit board.

2. The graphene heat dissipation LED automotive light according to claim 1, characterized in that, A second graphene film is provided on both the right side wall of the card holder and the side wall of the insertion hole, and the first graphene film is in contact with the second graphene film.

3. The graphene heat dissipation LED automotive light according to claim 1, characterized in that, The mounting base is made of metal. The top and bottom surfaces of the LED light panel are respectively provided with heat-conducting parts that are arc-shaped and have a left-end profile smaller than the right-end profile. The heat-conducting parts are integral with the mounting base and are in contact with the first graphene film.

4. A graphene-based heat-dissipating LED automotive light according to claim 3, characterized in that, The surface of the heat-conducting part is provided with a third graphene film that is in contact with the first graphene film.

5. A graphene-based heat-dissipating LED automotive light according to claim 1, characterized in that, The heat sink has a groove on its left side, and the control circuit board is located in the groove. The left side of the control circuit board contacts the mounting base, and the right side contacts the heat sink. Insulating and thermally conductive silicone is provided between the left side of the control circuit board and the mounting base, and between the right side of the control circuit board and the heat sink.

6. A graphene-based heat-dissipating LED automotive light according to claim 1, characterized in that, The heat sink has a reservoir for storing coolant. The outlet of the reservoir is connected to the inlet of the circulation pump. A metal tube is installed inside the LED light panel. The left end of the metal tube has a reciprocating bend. The outlet of the circulation pump is connected to the inlet of the right end of the metal tube. The outlet of the right end of the metal tube is connected to the return port of the reservoir. The circulation pump is used to drive the coolant in the reservoir into the metal tube and back into the reservoir.

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