LED automobile headlamp with heat dissipation device

Abstract

The utility model discloses an LED automobile headlamp with a heat dissipation device, and relates to the technical field of automobile accessories. The LED lamp comprises a mounting seat, wherein a lampshade is fixedly arranged in the middle of one side of the mounting seat; the lamp holder is mounted on the side, close to the mounting base, of the interior of the lampshade, a fixing column is connected to the other side of the lamp holder, a plurality of mounting plates are arranged on the surface of the fixing column, and LED lamp beads are mounted on the sides, away from the lamp holder, of the mounting plates at equal intervals; the air inlet cabin is fixedly arranged at the bottom of the lampshade. The air flow generated by high-speed running of the automobile is utilized for active heat dissipation, extra energy consumption is not needed, heat dissipation efficiency is high, compared with traditional air cooling and liquid cooling equipment, extra electric appliances and energy are not needed for building a heat dissipation system, equipment cost and use cost are greatly reduced, a complex heat dissipation system is not needed, and the heat dissipation efficiency is high. The headlamp circuit is simpler, and primary installation and later maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessory equipment, and particularly relates to an LED automobile headlamp with a heat dissipation device. Background Art

[0002] With the continuous development of the automobile industry, as an important lighting device for night driving and under adverse weather conditions, the performance of automobile headlamps is directly related to driving safety. Traditional halogen bulbs are gradually replaced by LEDs (light-emitting diodes) with high brightness, low energy consumption, and long service life due to their low energy efficiency and short service life. However, a large amount of heat is generated during the operation of LED automobile headlamps, and an efficient heat dissipation system is the key to ensuring the stable operation and extending the service life of LED headlamps.

[0003] The existing heat dissipation technologies for LED automobile headlamps mainly adopt two methods: air cooling and liquid cooling. The air-cooling device dissipates heat by installing a cooling fan, while the liquid-cooling device takes away the heat generated by the LEDs through circulating coolant to reduce the temperature. Although these methods can solve the heat dissipation problem to a certain extent, both air-cooling and liquid-cooling devices require additional electrical appliances and energy to construct the heat dissipation system, greatly increasing the equipment cost and usage cost of the entire headlamp. In addition, adding a heat dissipation system makes the headlamp circuit complex, which not only makes the initial installation complex but also brings inconvenience during later maintenance and disassembly. Therefore, we propose an LED automobile headlamp with a heat dissipation device to solve the above problems. Summary of the Utility Model

[0004] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0005] An LED automobile headlamp with a heat dissipation device, comprising:

[0006] A mounting seat, on one side of which a lamp cover is fixedly provided in the middle;

[0007] A lamp holder, installed on one side of the lamp cover close to the mounting seat, on the other side of which a fixing column is connected, and a plurality of mounting plates are arranged on the surface of the fixing column, and LED lamp beads are equally spaced on the side of the mounting plate away from the lamp holder;

[0008] An air inlet chamber and an air outlet chamber, the air inlet chamber is fixedly provided at the bottom of the lamp cover, the air outlet chamber is fixedly provided at the top of the lamp cover, one side of the air inlet chamber and the air outlet chamber is connected to the mounting seat, and a plurality of flow guide pipes penetrating the lamp cover body are equally spaced between the air inlet chamber and the air outlet chamber, a ventilation grille is provided on the side of the air inlet chamber away from the mounting seat, a first dust-proof net is provided at a position in the air inlet chamber close to the ventilation grille, and second dust-proof nets are provided on the front and rear sides of the air outlet chamber;

[0009] Self-cleaning mechanism for cleaning the first dust-proof net. The self-cleaning mechanism includes a rotating rod rotatably connected between the inner side walls of the air intake chamber. The surface of the rotating rod is provided with impellers arranged in an annular array. One side of the impeller away from the rotating rod is provided with a brush, and the brush abuts against the first dust-proof net.

[0010] Furthermore, the fixed column, the mounting plate, and the diversion pipe are all made of aluminum.

[0011] Furthermore, the mounting plates are arranged in a staggered manner up, down, left, and right on the surface of the fixed column.

[0012] Furthermore, the section of the diversion pipe located inside the lamp housing is arc-shaped and surrounds the periphery of the fixed column. One end of the mounting plate away from the fixed column is connected to the pipe wall of the diversion pipe.

[0013] Furthermore, the first dust-proof net is semi-circular arc-shaped.

[0014] Furthermore, a dust removal channel is constructed below the rotating rod at the bottom of the air intake chamber.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The present utility model utilizes the airflow generated by the high-speed driving of the vehicle for active heat dissipation, without additional energy consumption, and has high heat dissipation efficiency. Compared with traditional air-cooled and liquid-cooled devices, there is no need for additional electrical appliances and energy to construct a heat dissipation system, which greatly reduces the equipment cost and usage cost. Moreover, without a complex heat dissipation system, the headlamp circuit is simpler, facilitating initial installation and subsequent maintenance. Description of the Drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a schematic diagram of the internal structure of the lamp housing of the present utility model;

[0019] Figure 3 is a top view schematic diagram of the present utility model;

[0020] Figure 4 is the present utility model Figure 3 a sectional view taken along the A-A direction in;

[0021] Figure 5 is the present utility model Figure 4 an enlarged structural schematic diagram of part B in.

[0022] Reference numerals: 1, mounting base; 2, lamp housing; 3, lamp socket; 4, fixing post; 5, mounting plate; 6, LED lamp beads; 7, intake chamber; 701, ventilation grille; 702, dust removal channel; 8, exhaust chamber; 9, diversion pipe; 10, first dust filter; 11, second dust filter; 12, self-cleaning mechanism; 1201, rotating rod; 1202, impeller; 1203, brush. Detailed implementation mode

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0024] This application provides an LED automotive headlamp with a heat dissipation device, mainly used to solve the problem that in the prior art, whether it is an air-cooled or liquid-cooled device, additional electrical appliances and energy are required to construct a heat dissipation system, which greatly increases the equipment cost and usage cost of the entire headlamp. In addition, adding a heat dissipation system will make the headlamp circuit complex, which not only makes the initial installation complex, but also brings inconvenience during later maintenance and disassembly. The following technical solutions are provided and will be described in detail below in combination with Figures 1 - 5 make a detailed description:

[0025] An LED automotive headlamp with a heat dissipation device, comprising:

[0026] A mounting base 1, with a lamp housing 2 fixedly provided in the middle of one side of the mounting base 1;

[0027] A lamp socket 3, installed on one side of the lamp housing 2 close to the mounting base 1. On the other side of the lamp socket 3, there is a connecting fixing post 4. The surface of the fixing post 4 is provided with a plurality of mounting plates 5. LED lamp beads 6 are equally spaced and installed on the side of the mounting plate 5 away from the lamp socket 3;

[0028] An intake chamber 7 and an exhaust chamber 8. The intake chamber 7 is fixedly provided at the bottom of the lamp housing 2, and the exhaust chamber 8 is fixedly provided at the top of the lamp housing 2. One side of the intake chamber 7 and the exhaust chamber 8 is connected to the mounting base 1. Diversion pipes 9 passing through the housing of the lamp housing 2 are equally spaced and communicated between the intake chamber 7 and the exhaust chamber 8. A ventilation grille 701 is provided on the side of the intake chamber 7 away from the mounting base 1. A first dust filter 10 is provided inside the intake chamber 7 near the ventilation grille 701. Second dust filters 11 are provided on the front and rear sides of the exhaust chamber 8;

[0029] A self-cleaning mechanism 12 for cleaning the first dust filter 10. The self-cleaning mechanism 12 includes a rotating rod 1201 rotatably connected between the inner side walls of the intake chamber 7. The surface of the rotating rod 1201 is provided with impellers 1202 arranged in a circular array. A brush 1203 is provided on the side of the impeller 1202 away from the rotating rod 1201. The brush 1203 abuts against the first dust filter 10.

[0030] The specific working principle of the LED automotive headlamp with a heat dissipation device is as follows:

[0031] The core design of this device is to utilize the airflow generated during the high-speed driving of the vehicle for active heat dissipation. It forms an airflow channel by setting an air intake chamber 7 at the bottom of the lamp cover 2 and an air outlet chamber 8 at the top of the lamp cover 2. When the vehicle is driving, air enters from the ventilation grille 701 of the air intake chamber 7, passes through the diversion pipe 9, takes away the heat generated by the LED lamp beads 6, and then is discharged from the air outlet chamber 8, achieving effective heat dissipation. At the same time, in order to prevent dust from entering and blocking the diversion pipe 9, a first dust-proof net 10 and a second dust-proof net 11 are designed, and the first dust-proof net 10 is regularly cleaned by the self-cleaning mechanism 12 to ensure the smoothness of the heat dissipation channel. The working principle of the self-cleaning mechanism 12 is that when the high-speed airflow enters the air intake chamber 7 through the ventilation grille 701, it will drive the rotating rod 1201, and the brush 1203 at the end of the impeller 1202 can actively clean the first dust-proof net 10.

[0032] This uses the airflow generated by the high-speed driving of the vehicle for active heat dissipation, without additional energy consumption and with high heat dissipation efficiency. Compared with traditional air-cooled and liquid-cooled devices, there is no need for additional electrical appliances and energy to build a heat dissipation system, greatly reducing the equipment cost and usage cost. Moreover, without a complex heat dissipation system, the headlamp circuit is simpler, facilitating initial installation and subsequent maintenance.

[0033] As Figure 2 shown, in some embodiments, the fixed column 4, the mounting plate 5, and the diversion pipe 9 are all made of aluminum. More specifically, on the one hand, aluminum has good thermal conductivity and can effectively conduct the heat generated by the LED lamp beads 6 to other parts, thereby improving the overall heat dissipation efficiency. On the other hand, the density of aluminum is relatively small, and using aluminum parts can reduce the overall weight of the headlamp. At the same time, aluminum materials are easy to machine and form, and can be used to manufacture complex structures and shapes to meet different design requirements.

[0034] As Figure 2 shown, in some embodiments, the mounting plates 5 are arranged in a staggered manner on the surface of the fixed column 4 in the up-down, left-right directions. More specifically, by arranging the mounting plates 5 in a staggered manner, the heat dissipation area can be increased, thereby more effectively dissipating the heat generated by the LED lamp beads 6. This helps to maintain the normal working temperature of the LED lamp beads 6, ensure the stability and lifespan of the lamp, and in addition, the LED lamp beads 6 arranged in a staggered manner in the up-down, left-right directions can achieve a more uniform light distribution, reduce light spots and dark areas, and provide a better lighting effect, which is crucial for night driving safety.

[0035] As Figure 2As shown, in some embodiments, a section of the diversion pipe 9 located inside the lamp shade 2 is arc-shaped and surrounds the periphery of the fixed column 4. One end of the mounting plate 5 away from the fixed column 4 is connected to the pipe wall of the diversion pipe 9. More specifically, the arc-shaped design of the diversion pipe 9 increases the surface area in contact with the air, thereby improving the heat dissipation efficiency. When the vehicle is running, air enters the diversion pipe 9 through the air intake chamber 7. The arc-shaped diversion pipe 9 can guide the air flow and more effectively take away the heat generated by the fixed column 4 and the LED lamp beads 6. The connection between the mounting plate 5 and the pipe wall of the diversion pipe 9 enhances the stability of the entire headlamp structure and improves the heat conduction and heat dissipation effects at the same time.

[0036] As Figure 5 shown, in some embodiments, the first dust-proof net 10 is semi-circular arc-shaped. More specifically, the first dust-proof net 10 is semi-circular arc-shaped. This design not only increases the surface area of the first dust-proof net 10 and provides a larger filtering area, but also when combined with the rotating brush 1203, the semi-circular arc-shaped dust-proof net can ensure that the brush 1203 uniformly contacts the entire filtering area, thereby improving the cleaning efficiency and maintaining the permeability of the first dust-proof net 10.

[0037] As Figure 5 shown, in some embodiments, a dust removal channel 702 is constructed at the bottom of the air intake chamber 7 below the rotating rod 1201. More specifically, the dust cleaned from the first dust-proof net 10 can be discharged from the air intake chamber 7 through the dust removal channel 702.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An LED automobile headlamp with a heat dissipation device, characterized in that: include: A mounting seat (1), wherein a lampshade (2) is fixedly provided at a middle portion of one side of the mounting seat (1); A lamp holder (3) is mounted on a side of the lampshade (2) close to the mounting seat (1); the other side of the lamp holder (3) is connected to a fixing column (4); a surface of the fixing column (4) is provided with a plurality of mounting plates (5); and a side of the mounting plate (5) away from the lamp holder (3) is provided with LED lamp beads (6) at equal intervals; An air inlet cabin (7) and an air outlet cabin (8), wherein the air inlet cabin (7) is fixedly arranged at the bottom of the lampshade (2), and the air outlet cabin (8) is fixedly arranged at the top of the lampshade (2); one side of the air inlet cabin (7) and the air outlet cabin (8) is connected to the mounting seat (1); a flow guide pipe (9) penetrating the lampshade (2) is connected between the air inlet cabin (7) and the air outlet cabin (8) at equal intervals; a ventilation grille (701) is arranged on the side of the air inlet cabin (7) away from the mounting seat (1); a first dustproof net (10) is arranged inside the air inlet cabin (7) near the ventilation grille (701); and second dustproof nets (11) are arranged on the front and rear sides of the air outlet cabin (8); A self-cleaning mechanism (12) is used to clean the first dustproof net (10), the self-cleaning mechanism (12) comprising a rotating rod (1201) rotatably connected between the inner side walls of the air inlet chamber (7), an annular array on the surface of the rotating rod (1201) is provided with an impeller (1202), a brush (1203) is provided on a side of the impeller (1202) away from the rotating rod (1201), and the brush (1203) is in contact with the first dustproof net (10).

2. The LED automobile headlamp with a heat dissipation device according to claim 1, characterized in that: The fixing column (4), the mounting plate (5) and the flow guide pipe (9) are all made of aluminum.

3. The LED automobile headlamp with a heat dissipation device according to claim 1, characterized in that: The mounting plates (5) are arranged on the surface of the fixing column (4) in an alternating manner up and down and left and right.

4. The LED automobile headlamp with a heat dissipation device according to claim 1, characterized in that: A section of the flow guide tube (9) located inside the lampshade (2) is arc-shaped and surrounds the periphery of the fixing column (4); an end of the mounting plate (5) away from the fixing column (4) is connected to the wall of the flow guide tube (9).

5. The LED automobile headlamp with a heat dissipation device according to claim 1, characterized in that: The first dustproof net (10) is in a semicircular arc shape.

6. The LED automobile headlamp with a heat dissipation device according to claim 1, characterized in that: The bottom of the air inlet cabin (7) is located below the rotating rod (1201) and is provided with a dust removal channel (702).

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