LED headlamp radiator for automobile

Abstract

The utility model provides an LED (light-emitting diode) automobile headlamp radiator, which belongs to the technical field of automobile headlamp radiating and comprises a lamp body assembly, a circuit board is mounted on the lamp body assembly, lamp beads are arranged on the circuit board, a plurality of groups of radiating fins are arranged on the outer side surface of the lamp body assembly, and a base is arranged at the bottom end of the lamp body assembly. The LED lamp further comprises a heat dissipation assembly, the heat dissipation assembly comprises multiple sets of rotating pipes, the multiple sets of rotating pipes are installed between every two adjacent sets of cooling fins, multiple sets of through holes are formed in the rotating pipes, the heat dissipation assembly conveys air into the rotating pipes and then discharges the air to the cooling fins through the through holes, heat on the cooling fins is taken away through the air, and the heat dissipation efficiency is improved. According to the LED lamp body assembly, the heat dissipation assembly and the rotating assembly are arranged, the air flowing efficiency is improved, heat on the heat dissipation fins is further taken away in an accelerated mode, the heat dissipation efficiency of the lamp body assembly is further improved, and the problem that in the prior art, the heat dissipation efficiency of the lamp body assembly is low is solved.

Description

Technical Field

[0001] This utility model relates to the field of automotive headlight heat dissipation technology, and in particular to a heat sink for LED automotive headlights. Background Technology

[0002] Automotive headlights, also known as headlamps or car headlights, are lighting devices installed at the front of a car. They are mainly used for road lighting when driving at night. Headlights are usually located on both sides of the front of the car and include high beams and low beams, which are used for different lighting needs.

[0003] Currently, automotive headlights generate significant heat during use. To extend their lifespan, cooling measures are necessary. Existing technologies typically involve installing heat sinks on the outside of the headlight assembly and using ventilation channels inside the assembly to dissipate heat through airflow generated during vehicle movement. However, the cooling effect is significantly affected by vehicle speed and external environmental conditions, particularly at low speeds or in high-temperature environments. Therefore, we propose a heat sink for LED automotive headlights. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing an LED automotive headlight heat sink that improves heat dissipation efficiency by blowing air onto the heat sink to dissipate heat.

[0005] To solve the above-mentioned technical problems, the present invention solves the problem of low heat dissipation efficiency of the lamp assembly through the following technical solution.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A heat sink for an LED automotive headlight includes a lamp body assembly with a circuit board mounted on it. LED beads are mounted on the circuit board, and multiple heat sinks are provided on the outer surface of the lamp body assembly. A base is provided at the bottom of the lamp body assembly. The assembly also includes a heat dissipation component comprising multiple rotating tubes, each mounted between adjacent heat sinks. Each rotating tube has several through holes. The heat dissipation component cools the lamp body assembly by supplying air into the rotating tubes and discharging it through the through holes onto the heat sinks, thus carrying away heat from the heat sinks. Finally, a rotating component is configured to rotate the rotating tubes in conjunction with the heat dissipation component.

[0008] Preferably, the heat dissipation assembly includes a distribution pipe installed inside the base, with multiple sets of connecting pipes connected to the distribution pipe. The multiple sets of connecting pipes are respectively connected to multiple sets of rotating pipes, and the rotating pipes are rotatably connected to the connecting pipes. A fan shroud is connected to the distribution pipe, and flow holes are opened at both ends of the fan shroud. A fan wheel is rotatably connected inside the fan shroud, and a rotating frame is fixedly connected to the axis of the fan wheel. A rotating component is installed on the rotating frame to facilitate heat dissipation of the heat sink.

[0009] Preferably, the rotating component includes a rotating shaft fixedly connected to the rotating frame, the rotating shaft being rotatably connected to the fan cover, and a first bevel gear being fixedly connected to the end of the rotating shaft. A second bevel gear meshes with the outer side of the first bevel gear, and a driving component is mounted on the axis of the second bevel gear to facilitate driving the fan wheel to rotate, thereby generating wind force that blows towards the heat sink.

[0010] Preferably, the rotating assembly includes a rotating plate fixedly connected to the rotating shaft. The rotating plate is installed at the top of the diverter pipe, and the rotating shaft is rotatably connected to the diverter pipe. A first anti-slip ring is fixedly connected to the outer side of the rotating plate. Multiple sets of rotating disks are arranged outside the first anti-slip ring. The multiple sets of rotating disks are fixedly connected to multiple sets of rotating pipes respectively. A second anti-slip ring that fits against the first anti-slip ring is fixedly connected to the outer side of the rotating disk, which facilitates the rotation of the rotating pipe, resulting in faster airflow and improved heat dissipation efficiency.

[0011] Preferably, the driving component includes a fixed frame fixed inside the base, a motor fixedly connected to the fixed frame, a drive shaft fixedly connected to the output end of the motor, and the drive shaft fixedly connected to the second bevel gear to facilitate the provision of stable driving force.

[0012] Preferably, the rotating plate is provided with several sets of weight-reducing holes to facilitate weight reduction of the rotating plate, making the rotating plate easier to rotate and reducing energy consumption.

[0013] Preferably, the base has several sets of heat dissipation holes to facilitate heat dissipation for the motor.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] This invention incorporates a heat dissipation component and a rotating component. During the use of the lamp assembly, heat is absorbed onto the heat sink. The rotating component then causes the fan to rotate, generating airflow that blows into the rotating tube and out through the through-hole, thus cooling the heat sink. Furthermore, the rotating component's operation drives the rotating tube, improving airflow efficiency and accelerating the removal of heat from the heat sink. This significantly enhances the heat dissipation efficiency of the lamp assembly, solving the problem of low heat dissipation efficiency in existing lamp assemblies. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0019] Figure 3 For the present invention Figure 2 Another perspective structural diagram;

[0020] Figure 4 This is a schematic diagram of the heat dissipation component structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the disassembled structure of the heat dissipation component of the present invention;

[0022] Figure 6 This is a schematic diagram of the rotating component structure of the present invention;

[0023] Figure 7 For the present invention Figure 6 Schematic diagram of the structure of area A in the middle.

[0024] Drawing number descriptions: 1. Lamp body assembly; 2. Circuit board; 3. Lamp bead; 4. Heat sink; 5. Base; 6. Heat dissipation component; 7. Rotating tube; 8. Through hole; 9. Rotating component; 10. Diverter tube; 11. Connecting tube; 12. Fan cover; 13. Flow hole; 14. Fan wheel; 15. Rotating frame; 16. Rotating component; 17. Rotating shaft; 18. First bevel gear; 19. Second bevel gear; 20. Drive component; 21. Rotating plate; 22. First anti-slip ring; 23. Second anti-slip ring; 24. Rotating disk; 25. Fixing frame; 26. Motor; 27. Drive shaft; 28. Weight reduction hole; 29. ​​Heat dissipation hole. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. Example

[0026] Please see Figures 1-7 A heat sink for an LED automotive headlight includes a lamp assembly 1, on which a circuit board 2 is mounted, and LED beads 3 are disposed on the circuit board 2. Multiple heat sinks 4 are disposed on the outer surface of the lamp assembly 1, and a base 5 is disposed at the bottom of the lamp assembly 1. The assembly also includes a heat dissipation component 6, which comprises multiple rotating tubes 7, each mounted between adjacent heat sinks 4. Each rotating tube 7 has several through holes 8. The heat dissipation component 6 cools the lamp assembly 1 by supplying air into the rotating tubes 7 and discharging it through the through holes 8 onto the heat sinks 4, thereby carrying away heat from the heat sinks 4. Finally, a rotating component 9 is configured to cooperate with the heat dissipation component 6 and is used to rotate the rotating tubes 7.

[0027] Please see Figures 2-5 The heat dissipation assembly 6 shown in the figure includes a diversion pipe 10 installed inside the base 5. Multiple sets of connecting pipes 11 are connected to the diversion pipe 10. The multiple sets of connecting pipes 11 are respectively connected to multiple sets of rotating pipes 7, and the rotating pipes 7 are rotatably connected to the connecting pipes 11. A fan cover 12 is connected to the diversion pipe 10. Flow holes 13 are opened at both ends of the fan cover 12. A fan wheel 14 is rotatably connected inside the fan cover 12. A rotating frame 15 is fixedly connected to the axis of the fan wheel 14. A rotating component 16 is installed on the rotating frame 15 to facilitate heat dissipation of the heat sink 4.

[0028] Please see Figure 4 and Figure 5 The rotating component 16 shown in the figure includes a rotating shaft 17 fixedly connected to the rotating frame 15. The rotating shaft 17 is rotatably connected to the fan cover 12, and a first bevel gear 18 is fixedly connected to the end of the rotating shaft 17. A second bevel gear 19 meshes with the outer side of the first bevel gear 18. A driving component 20 is installed on the axis of the second bevel gear 19 to drive the fan wheel 14 to rotate. The fan wheel 14 rotates to generate wind that blows towards the heat sink 4.

[0029] Please see Figure 6 and Figure 7The rotating assembly 9 shown in the figure includes a rotating plate 21 fixedly connected to the rotating shaft 17. The rotating plate 21 is installed at the top of the diversion pipe 10, and the rotating shaft 17 is rotatably connected to the diversion pipe 10. A first anti-slip ring 22 is fixedly connected to the outer side of the rotating plate 21. Multiple sets of rotating disks 24 are arranged on the outer side of the first anti-slip ring 22. The multiple sets of rotating disks 24 are fixedly connected to multiple sets of rotating pipes 7 respectively. A second anti-slip ring 23 is fixedly connected to the outer side of the rotating disk 24 and fits against the first anti-slip ring 22, which facilitates the rotation of the rotating pipe 7, making the air flow speed faster and improving the heat dissipation efficiency.

[0030] Please see Figure 4 and Figure 5 The driving component 20 shown in the figure includes a fixed frame 25 fixed inside the base 5. A motor 26 is fixedly connected to the fixed frame 25. A drive shaft 27 is fixedly connected to the output end of the motor 26. The drive shaft 27 is fixedly connected to the second bevel gear 19 to facilitate the provision of stable driving force.

[0031] Please see Figure 6 The rotating plate 21 shown in the figure has several sets of weight-reducing holes 28, which facilitates weight reduction of the rotating plate 21, making the rotating plate 21 easier to rotate and reducing energy consumption.

[0032] Please see Figure 1 and Figure 2 The base 5 shown in the figure has several sets of heat dissipation holes 29 to facilitate heat dissipation for the motor 26.

[0033] During implementation, when heat dissipation is needed, the control motor 26 is started, which drives the drive shaft 27 to rotate. The rotation of the drive shaft 27 will drive the second bevel gear 19 to rotate, which in turn drives the first bevel gear 18 to rotate. The rotation of the first bevel gear 18 will cause the rotating shaft 17 to rotate, which in turn drives the fan wheel 14 to rotate. When the fan wheel 14 rotates, it will deliver airflow through the flow hole 13 into the airflow pipe, and then through the split pipe 10 to the connecting pipe 11. Finally, it will be discharged through the rotating pipe 7 and the through hole 8 and blown onto the heat sink 4, thereby dissipating the heat on the heat sink 4.

[0034] Furthermore, during the rotation of the rotating shaft 17, the rotating plate 21 will also be driven to rotate. The rotation of the rotating plate 21 will drive the first anti-slip ring 22 to rotate. The rotation of the first anti-slip ring 22 will cause the second anti-slip ring 23 to drive the rotating disk 24 to rotate. The rotation of the rotating disk 24 will cause the rotating tube 7 to rotate. In turn, the rotation of the rotating tube 7 will improve the airflow efficiency, thereby facilitating the improvement of heat dissipation efficiency.

Claims

1. A heat sink for LED automotive headlights, characterized in that, include: The lamp assembly (1) has a circuit board (2) mounted on it, and a lamp bead (3) is provided on the circuit board (2). The outer side of the lamp assembly (1) is provided with multiple heat sinks (4), and the bottom end of the lamp assembly (1) is provided with a base (5). Also includes: The heat dissipation assembly (6) includes multiple sets of rotating tubes (7), which are respectively installed between two adjacent sets of heat sinks (4). The rotating tubes (7) are provided with several sets of through holes (8). The heat dissipation assembly (6) delivers air into the rotating tubes (7) and discharges it to the heat sinks (4) through the through holes (8). The air carries away the heat from the heat sinks (4), thereby cooling the lamp assembly (1). Rotating component (9) is configured in conjunction with heat dissipation component (6) and is used to drive rotating tube (7) to rotate.

2. The LED automotive headlight heat sink according to claim 1, characterized in that: The heat dissipation assembly (6) includes a diversion pipe (10) installed inside the base (5). Multiple sets of connecting pipes (11) are connected to the diversion pipe (10). The multiple sets of connecting pipes (11) are respectively connected to multiple sets of rotating pipes (7). The rotating pipes (7) are rotatably connected to the connecting pipes (11). A fan shroud (12) is connected to the diversion pipe (10). Flow holes (13) are opened at both ends of the fan shroud (12). A fan wheel (14) is rotatably connected inside the fan shroud (12). A rotating frame (15) is fixedly connected to the axis of the fan wheel (14). A rotating component (16) is installed on the rotating frame (15).

3. The LED automotive headlight heat sink according to claim 2, characterized in that: The rotating component (16) includes a rotating shaft (17) fixedly connected to the rotating frame (15), the rotating shaft (17) is rotatably connected to the wind cover (12), and a first bevel gear (18) is fixedly connected to the end of the rotating shaft (17). A second bevel gear (19) meshes with the outer side of the first bevel gear (18), and a driving component (20) is mounted on the axis of the second bevel gear (19).

4. The LED automotive headlight heat sink according to claim 3, characterized in that: The rotating assembly (9) includes a rotating plate (21) fixedly connected to the rotating shaft (17). The rotating plate (21) is installed at the top of the diversion pipe (10), and the rotating shaft (17) is rotatably connected to the diversion pipe (10). A first anti-slip ring (22) is fixedly connected to the outer side of the rotating plate (21). Multiple sets of rotating disks (24) are provided on the outer side of the first anti-slip ring (22). The multiple sets of rotating disks (24) are fixedly connected to multiple sets of rotating pipes (7), and a second anti-slip ring (23) is fixedly connected to the outer side of the rotating disk (24) and fits against the first anti-slip ring (22).

5. The LED automotive headlight heat sink according to claim 4, characterized in that: The drive unit (20) includes a fixed frame (25) fixed inside the base (5), a motor (26) is fixedly connected to the fixed frame (25), a drive shaft (27) is fixedly connected to the output end of the motor (26), and the drive shaft (27) is fixedly connected to the second bevel gear (19).

6. The LED automotive headlight heat sink according to claim 5, characterized in that: The rotating plate (21) has several sets of weight-reducing holes (28).

7. The LED automotive headlight heat sink according to claim 6, characterized in that: The base (5) has several sets of heat dissipation holes (29).

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