Heat dissipation structure of automobile headlamp rear cover

Abstract

The utility model discloses a heat dissipation structure of an automobile headlamp rear cover, which comprises a rear cover body and a mounting piece, a mounting ring is arranged behind the rear cover body, a fan is arranged in the mounting piece, a heat absorption plate is arranged on the inner side of the mounting ring, heat dissipation fins are arranged on the heat absorption plate, a connecting ring is arranged behind the mounting piece, and the connecting ring is connected with the fan. A first dustproof net is arranged on the outer side of the interior of the connecting ring, an exhaust port is formed in the top of the installation piece, and a hose is arranged above the exhaust port. When the rear cover emits heat, heat of the rear cover is absorbed through the heat absorption plate and conveyed to the cooling fins, the fan blows air to the cooling fins, and therefore the rear cover is cooled; and the returned hot air has a certain blocking effect through the guide groove, and enters the exhaust port through the notch, so that the hot air is exhausted through the exhaust port, the rapid heat dissipation effect is achieved, and the service life of the automobile headlamp is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive headlights, and particularly to a heat dissipation structure for the rear cover of an automotive headlight. Background Technique

[0002] Automotive headlights, also known as automotive front headlights or automotive LED daytime running lights, are lighting devices installed at the front of an automobile. They are not only the eyes of the vehicle, closely related to the external image of the vehicle owner, but also the key to safe driving at night or under adverse weather conditions. Automotive headlights include high beam and low beam modes, which are respectively used to meet the lighting needs of long distances and high clarity. The high beam provides a longer lighting distance, while the low beam can illuminate a wider range. During the driving process of the vehicle, the driver can switch between the high beam and the low beam according to needs to adapt to different roads and driving environments.

[0003] Currently, during the use of automotive headlights, especially at night, the high beam and low beam need to be constantly switched, which causes a large amount of heat to be generated by the automotive headlights. Since the current rear cover of the automotive headlight is relatively closed, it is difficult for the heat of the rear cover to dissipate, resulting in poor heat dissipation effect of the automotive headlight, which will affect the service life of the automotive headlight. Content of the Utility Model

[0004] The purpose of the utility model is to provide a heat dissipation structure for the rear cover of an automotive headlight to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A heat dissipation structure for the rear cover of an automotive headlight, including a rear cover body and a mounting member. There is a mounting ring arranged behind the rear cover body, a first thread strip is arranged on the outer side of the mounting ring, a first thread groove is arranged on the inner side of the front of the mounting member, the first thread strip and the first thread groove are in threaded connection, a fan is arranged inside the mounting member, a heat absorption plate is arranged on the inner side of the mounting ring, heat dissipation fins are arranged on the heat absorption plate, the fan is facing the heat dissipation fins, an inclined surface is arranged inside the fan, a guiding groove is arranged inside the inclined surface, a connecting ring is arranged behind the mounting member, a first dust-proof net is arranged on the outer side of the inner part of the connecting ring, an exhaust port is arranged on the top of the mounting member, and a hose is arranged above the exhaust port.

[0007] In a preferred embodiment of the utility model, a sealing groove is arranged on the outer side of the first thread strip, a sealing rubber ring is arranged on the outer side of the first thread groove, and the sealing rubber ring is attached to the sealing groove.

[0008] In a preferred embodiment of the present utility model, a second thread bar is provided on the outer side behind the mounting member, and a second thread groove is provided on the inner side inside the connecting ring. The second thread bar is in threaded connection with the second thread groove.

[0009] In a preferred embodiment of the present utility model, a notch is provided at the top of the guiding groove, and the notch is connected to the inner side of the exhaust port.

[0010] In a preferred embodiment of the present utility model, a first screw port is provided on the outer side at the top of the exhaust port, and a second screw port is provided at the bottom of the hose. The second screw port is in threaded connection with the first screw port.

[0011] In a preferred embodiment of the present utility model, a discharge port is provided at the top of the hose, and a second dust-proof net is provided inside the discharge port.

[0012] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model.

[0013] Beneficial effects: When the rear cover gets hot, the heat of the rear cover is absorbed by the heat absorption plate and conveyed to the heat sink. The fan blows air on it, and the air blows normally towards the rear cover through the inclined surface, thereby dissipating heat from the rear cover. And when the fan blows air, dust prevention is carried out through the first dust-proof net, thus preventing dust from entering the interior of the mounting member. The returned hot air plays a certain blocking effect through the guiding groove and enters the exhaust port through the notch, so as to discharge the hot air through the exhaust port, that is, a rapid heat dissipation effect is achieved, thereby prolonging the service life of the automotive headlight.

[0014] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly and implement it according to the content of the description, the following takes the preferred embodiments of the present utility model and combines with the drawings to describe in detail as follows. The specific implementation manners of the present utility model are given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0016] Figure 1 It is a schematic diagram of the main structure in a heat dissipation structure of an automotive headlight rear cover;

[0017] Figure 2 It is a schematic diagram of the exploded structure in a heat dissipation structure of an automotive headlight rear cover;

[0018] Figure 3Schematic diagram of the front structure of the mounting part in a heat dissipation structure of an automobile headlight rear cover;

[0019] Figure 4 Schematic diagram of the inner structure of the mounting part in a heat dissipation structure of an automobile headlight rear cover.

[0020] In the figure: 1. Rear cover body; 11. Mounting ring; 12. First thread bar; 13. Heat absorption plate; 14. Sealing groove; 15. Heat dissipation fins; 2. Mounting part; 21. First thread groove; 22. Fan; 23. Second thread bar; 24. Sealing rubber ring; 3. Connecting ring; 31. First dust-proof net; 32. Second thread groove; 33. Hose; 34. Discharge port; 35. Second dust-proof net; 4. Exhaust port; 41. First screw port; 42. Second screw port; 43. Guide groove; 44. Notch; 45. Inclined surface. Detailed implementation mode

[0021] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0022] Please refer to Figures 1-4 , a heat dissipation structure of an automobile headlight rear cover of the present invention includes a rear cover body 1 and a mounting part 2. The rear cover body 1 is the rear cover of the automobile headlight and is installed at the rear side of the automobile headlight. The mounting part 2 is the main structure for installing other structures. A mounting ring 11 is provided at the rear of the rear cover body 1. The mounting ring 11 is the mounting structure of the rear cover body 1. A first thread bar 12 is provided on the outer side of the mounting ring 11. A first thread groove 21 is provided on the inner side of the front of the mounting part 2. The first thread bar 12 and the first thread groove 21 are in threaded connection, that is, the first thread bar 12 is connected to the first thread groove 21, so that the mounting part 2 is connected to the rear cover body 1. A sealing groove 14 is provided on the outer side of the first thread bar 12. A sealing rubber ring 24 is provided on the outer side of the first thread groove 21. By attaching the sealing rubber ring 24 to the sealing groove 14, the connection between the rear cover body 1 and the mounting part 2 is sealed.

[0023] Inside the mounting member 2, a fan 22 is provided. The fan 22 serves as the main structure and is used to dissipate heat from the rear cover. An endothermic plate 13 is provided inside the inner side of the mounting ring 11. The endothermic plate 13 contacts the rear side of the rear cover. The endothermic plate 13 is made of copper for heat absorption. Heat dissipation fins 15 are provided on the endothermic plate 13. The heat dissipation fins 15 are made of aluminum for heat dissipation. The fan 22 faces the heat dissipation fins 15. That is, the heat of the rear cover is absorbed through the endothermic plate 13 and transported to the heat dissipation fins 15, and the fan 22 blows air on it to quickly dissipate heat. A connecting ring 3 is provided behind the mounting member 2. The connecting ring 3 is the mounting structure behind the mounting member 2. A second thread bar 23 is provided on the outer side behind the mounting member 2. A second thread groove 32 is provided on the inner side inside the connecting ring 3. The second thread bar 23 is threadedly connected to the second thread groove 32. That is, the connecting ring 3 is connected to the mounting member 2 by connecting the second thread bar 23 to the second thread groove 32. A first dust-proof net 31 is provided on the outer side inside the connecting ring 3. When the fan 22 blows air, dust prevention is carried out through the first dust-proof net 31 to prevent dust from entering the inside of the mounting member 2.

[0024] An exhaust port 4 is provided at the top of the mounting member 2. An inclined surface 45 is provided inside the fan 22. A guide groove 43 is provided inside the inclined surface 45. A notch 44 is provided at the top of the guide groove 43. The notch 44 is connected to the inner side of the exhaust port 4. When the fan 22 blows air, the air is normally blown towards the rear cover through the inclined surface 45. The returned hot air is blocked to a certain extent through the guide groove 43 and enters the exhaust port 4 through the notch 44, so as to quickly discharge the hot air through the exhaust port 4, thereby achieving a better heat dissipation effect. A hose 33 is provided above the exhaust port 4. A first screw port 41 is provided on the outer side at the top of the exhaust port 4. A second screw port 42 is provided at the bottom of the hose 33. The second screw port 42 is threadedly connected to the first screw port 41. That is, the hose 33 is connected to the exhaust port 4 by connecting the second screw port 42 to the first screw port 41. That is, the hot air is discharged through the hose 33. A discharge port 34 is provided at the top of the hose 33. That is, the discharge port 34 is aligned with the outside to discharge the hot air outside the vehicle. A second dust-proof net 35 is provided inside the discharge port 34 to prevent dust at the discharge port 34.

[0025] The working principle of the present utility model is as follows: The first threaded strip 12 is connected to the first threaded groove 21, so that the mounting member 2 is connected to the rear cover body 1, and the sealing rubber ring 24 is attached to the sealing groove 14, so as to seal the connection between the rear cover body 1 and the mounting member 2. The second threaded strip 23 is connected to the second threaded groove 32, so that the connecting ring 3 is connected to the mounting member 2. The second screw port 42 is connected to the first screw port 41, so that the hose 33 is connected to the exhaust port 4. When the rear cover gets hot, the heat of the rear cover is absorbed by the heat absorption plate 13 and transferred to the heat sink 15, and the fan 22 blows air on it. The inclined surface 45 makes the air blow towards the rear cover normally, so as to dissipate heat quickly. When the fan 22 blows air, dust is prevented by the first dust-proof net 31, so as to avoid dust entering the interior of the mounting member 2. The returned hot air has a certain blocking effect through the guiding groove 43 and enters the exhaust port 4 through the notch 44, so that the discharge port 34 at the top of the hose 33 is aligned with the outside and discharged.

[0026] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A heat dissipation structure for a rear cover of a car headlight, comprising a rear cover body (1) and a mounting member (2), characterized in that: A mounting ring (11) is arranged at the rear of the rear cover body (1), a first thread strip (12) is arranged on the outer side of the mounting ring (11), a first thread groove (21) is arranged on the inner side of the front of the mounting member (2), the first thread strip (12) is threadedly connected to the first thread groove (21), a fan (22) is arranged inside the mounting member (2), a heat absorbing plate (13) is arranged on the inner side of the mounting ring (11), a heat sink (15) is arranged on the heat absorbing plate (13), the fan (22) faces the heat sink (15), an inclined surface (45) is arranged on the inner side of the fan (22), a guide groove (43) is arranged on the inner side of the inclined surface (45), a connecting ring (3) is arranged at the rear of the mounting member (2), a first dustproof net (31) is arranged on the inner and outer sides of the connecting ring (3), an exhaust port (4) is arranged at the top of the mounting member (2), and a hose (33) is arranged above the exhaust port (4).

2. The heat dissipation structure of the rear cover of a car headlight according to claim 1, characterized in that: A sealing groove (14) is arranged on the outside of the first thread strip (12), a sealing rubber ring (24) is arranged on the outside of the first thread groove (21), and the sealing rubber ring (24) is attached to the sealing groove (14).

3. The heat dissipation structure of the rear cover of a car headlight according to claim 1, characterized in that: A second thread strip (23) is arranged on the rear outer side of the mounting member (2), a second thread groove (32) is arranged on the inner side of the connecting ring (3), and the second thread strip (23) is threadedly connected to the second thread groove (32).

4. The heat dissipation structure of the rear cover of a car headlight according to claim 1, characterized in that: A notch (44) is provided at the top of the guide groove (43), and the notch (44) is connected to the inner side of the exhaust port (4).

5. The heat dissipation structure of the rear cover of a car headlight according to claim 1, characterized in that: A first screw opening (41) is arranged on the outer side of the top of the exhaust port (4), and a second screw opening (42) is arranged on the bottom of the hose (33), and the second screw opening (42) is threadedly connected to the first screw opening (41).

6. The heat dissipation structure of the rear cover of a car headlight according to claim 1, characterized in that: The top of the hose (33) is provided with a discharge port (34), and a second dustproof net (35) is provided inside the discharge port (34).

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