Automobile headlamp sealing rear cover with heat dissipation function

Abstract

The utility model discloses an automobile headlamp sealing rear cover with a heat dissipation function, which comprises a rear cover body, a plurality of ventilation slots are arranged on the outer wall of the rear cover body close to the middle, heat conduction silica gel is attached to the inner wall of the rear cover body, a heat dissipation structure is sleeved on the outer wall of the rear cover body close to the end face, and the heat dissipation structure is connected with the ventilation slots. A plurality of heat dissipation holes are evenly formed in the position, close to the bottom, of the outer wall of the rear cover body, buckles are symmetrically and fixedly connected to the positions, located on the two side walls, of a port of the rear cover body, internal heat can be conveniently discharged through the heat dissipation holes, and the whole rear cover body can be conveniently installed on a headlamp in a buckled mode through the buckles. Heat is conducted to the fins on the outer side through the arranged heat conduction silica gel layer, air convection is formed in combination with the flow guide channel, passive heat dissipation is achieved, the outer heat dissipation fins are detachably connected with the rear cover body, and maintenance and replacement are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile sealing element application, especially to a car headlamp sealing rear cover with heat dissipation function. BACKGROUND

[0002] With the development of automobile lighting technology, LED headlamps are widely used due to high efficiency and energy saving, but LED light sources are sensitive to temperature, and long-term high temperature will cause accelerated light decay and shortened life, traditional car headlamp rear covers mostly adopt single sealing structure, although dust and water vapor can be prevented from entering, but the heat dissipation performance is insufficient, and the existing heat dissipation schemes are mostly realized by increasing heat dissipation fins or fans, but there are problems such as complex structure and poor sealing, therefore, the utility model provides a car headlamp sealing rear cover with heat dissipation function. SUMMARY

[0003] The utility model provides a car headlamp sealing rear cover with heat dissipation function, heat is conducted to the outside fin through the setting heat conduction silica gel layer, air convection is formed in combination with the flow guide channel, passive heat dissipation is realized, and the external heat dissipation fin and the rear cover body are detachably connected, so that maintenance and replacement are facilitated.

[0004] To solve the above technical problems, one technical scheme of the utility model is provided: a car headlamp sealing rear cover with heat dissipation function is provided, which comprises a rear cover body, a plurality of ventilation grooves are arranged on the outer wall of the rear cover body close to the middle part, heat conduction silica gel is arranged on the inner wall of the rear cover body, and a heat dissipation structure is sleeved on the outer wall of the rear cover body close to the end face.

[0005] The utility model is further provided: a plurality of heat dissipation holes are uniformly arranged on the outer wall of the rear cover body close to the bottom, and buckles are symmetrically and fixedly connected to the port of the rear cover body.

[0006] Through the above technical scheme, the internal heat can be conveniently discharged through the plurality of heat dissipation holes, and the buckle type mounting of the entire rear cover body on the headlamp is facilitated through the use of buckles.

[0007] The utility model is further provided: the ventilation groove is arranged in a U shape, the inner wall of the ventilation groove is provided with a flow guide piece, and the flow guide piece is arranged in an inclined manner.

[0008] Through the above technical scheme, the discharge of heat conduction silica gel during heat transfer is facilitated through the use of the U-shaped ventilation groove, and the internal flow guide piece arranged in an inclined manner can cause strong convection inside during vehicle driving, so that the heat dissipation efficiency inside is improved.

[0009] The present invention is further configured such that: the port of the thermally conductive silicone is in close contact with the inner wall of the back cover body, and a sealing gasket is provided at the end face, and a card is provided at the end face of the sealing gasket.

[0010] The above technical solution uses an elastic card to stably press the internal sealing gasket against the port of the thermally conductive silicone, thus sealing the connection between the entire thermally conductive silicone and the back cover body and preventing moisture from entering.

[0011] The present invention is further configured such that the card is a three-quarters circular ring and is embedded in a card slot opened at a corresponding position on the inner wall of the back cover body.

[0012] The above technical solution facilitates the quick insertion of open-type cards into the card slot, allowing for stable installation of the internal thermal conductive silicone and easy disassembly and replacement later.

[0013] The present invention is further configured such that: the heat dissipation structure includes a solid ring, a plurality of heat dissipation fins are uniformly fixedly connected to the outer wall of the solid ring, and a plurality of positioning blocks are uniformly fixedly connected to the inner wall of the solid ring, and the positioning blocks are fixedly connected to the heat dissipation fins.

[0014] The above technical solution facilitates the use of multiple positioning blocks to transfer internal high temperatures, which are then transferred to external heat dissipation fins. The enlarged heat dissipation fins can quickly dissipate heat, improving the overall heat dissipation efficiency of the back cover.

[0015] The present invention is further configured such that: the retaining ring is sleeved inside the limiting groove opened on the outer wall of the back cover body, the plurality of positioning blocks are respectively embedded in the plurality of positioning holes opened in the limiting groove, and the plurality of heat dissipation fins are all attached to the outer wall of the back cover body.

[0016] The above technical solution facilitates the installation of the heat dissipation structure by allowing the retaining ring to carry multiple positioning blocks that are respectively embedded in the limiting groove and the positioning slot, thereby fixing the heat dissipation structure.

[0017] The beneficial effects of this utility model are as follows:

[0018] The present invention proposes a sealing back cover for automotive headlights with heat dissipation function. The heat is conducted to the outer fins through a thermally conductive silicone layer, and air convection is formed by the flow channel to achieve passive heat dissipation. Furthermore, the external heat dissipation fins are detachably connected to the back cover body, which is convenient for maintenance and replacement. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of a sealing rear cover for a car headlight with heat dissipation function according to the present invention.

[0020] Figure 2 This is a cross-sectional view of a sealing rear cover for an automotive headlight with heat dissipation function according to the present invention.

[0021] Figure 3 An exploded view of the sealing rear cover of a car headlight with heat dissipation function according to this utility model.

[0022] Figure 4 This is a structural diagram of a sealing rear cover for an automotive headlight with heat dissipation function according to the present invention.

[0023] Figure 5 This is an exploded view of the thermally conductive silicone in the sealing rear cover of a car headlight with heat dissipation function according to this utility model.

[0024] Figure 6 This is a structural diagram of the heat dissipation structure in the sealed rear cover of a car headlight with heat dissipation function according to the present invention.

[0025] In the diagram: 1. Back cover body; 11. Heat dissipation hole; 12. Limiting groove; 13. Positioning hole; 14. Card slot; 15. Buckle; 2. Ventilation slot; 21. Air guide plate; 3. Thermal conductive silicone; 31. Sealing gasket; 32. Card; 4. Heat dissipation structure; 41. Fixing ring; 42. Heat dissipation fins; 43. Positioning block. Detailed Implementation

[0026] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0027] like Figures 1-6As shown, a heat dissipation function automotive headlight sealing cover includes a cover body 1. Multiple heat dissipation holes 11 are evenly distributed on the outer wall of the cover body 1 near the bottom. Buckles 15 are symmetrically fixed to the ports of the cover body 1 on both side walls. The multiple heat dissipation holes 11 facilitate the dissipation of internal heat, and the buckles 15 facilitate the snap-fit ​​installation of the entire cover body 1 onto the headlight. Multiple ventilation slots 2 are provided on the outer wall of the cover body 1 near the center. The ventilation slots 2 are U-shaped, and guide vanes 21 are provided on the inner wall of the ventilation slots 2, with the guide vanes 21 being inclined. The U-shaped ventilation slots... The air duct 2 facilitates the discharge of heat from the thermally conductive silicone 3 during heat transfer. Furthermore, the internally inclined guide vanes 21 create strong convection currents within the vehicle during operation, thereby improving internal heat dissipation efficiency. The inner wall of the rear cover body 1 is fitted with thermally conductive silicone 3. The air duct 2 is U-shaped, and its inner wall is equipped with guide vanes 21, which are inclined. The U-shaped air duct 2 facilitates the discharge of heat from the thermally conductive silicone 3 during heat transfer, and the internally inclined guide vanes 21 create strong convection currents within the vehicle during operation, thereby improving internal heat dissipation efficiency. The card 32 is a three-quarter ring and is embedded in a corresponding slot 14 on the inner wall of the back cover body 1. This allows the open card 32 to be quickly inserted into the slot 14, ensuring stable installation of the internal thermal conductive silicone 3 and facilitating future disassembly and replacement. A heat dissipation structure 4 is fitted onto the outer wall of the back cover body 1 near the end face. The heat dissipation structure 4 includes a retaining ring 41. Multiple heat dissipation fins 42 are evenly fixedly connected to the outer wall of the retaining ring 41, and multiple positioning blocks 43 are evenly fixedly connected to the inner wall of the retaining ring 41. The positioning blocks 43 are fixedly connected to the heat dissipation fins 42, facilitating the use of multiple positioning blocks. Block 43 transfers the internal high temperature to the external heat dissipation fins 42. The enlarged heat dissipation fins 42 can quickly dissipate heat, improving the heat dissipation efficiency of the entire back cover. The retaining ring 41 is fitted into the limiting groove 12 opened on the outer wall of the back cover body 1. Multiple positioning blocks 43 are respectively embedded in the multiple positioning holes 13 opened in the limiting groove 12. Multiple heat dissipation fins 42 are all attached to the outer wall of the back cover body 1, so that when the heat dissipation structure 4 is installed, its retaining ring 41 can carry multiple positioning blocks 43 and be embedded in the limiting groove 12 and positioning holes 13 respectively, thereby fixing the heat dissipation structure 4.

[0028] In use, the present invention first uses the card 32 to press the sealing gasket 31 against the port of the thermally conductive silicone 3 installed inside the rear cover body 1 to achieve a sealing effect at the connection. Then, the heat dissipation structure 4 is sleeved on the outer wall of the rear cover body 1, so that the fixing ring 41 can carry multiple positioning blocks 43 and embed them into the limiting groove 12 and the positioning hole 13 respectively, thereby fixing the heat dissipation structure 4. The multiple positioning blocks 43 can quickly dissipate the heat transferred on the thermally conductive silicone 3 through multiple heat dissipation fins 42. At the same time, during the vehicle's operation, the external airflow will form convection through the guide plate 21 inside the ventilation slot 2, thereby accelerating the internal heat dissipation effect.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sealing rear cover for an automotive headlight with heat dissipation function, comprising a rear cover body (1), characterized in that: The outer wall of the back cover body (1) is provided with multiple ventilation slots (2) near the middle position, the inner wall of the back cover body (1) is provided with thermally conductive silicone (3), and the outer wall of the back cover body (1) is fitted with a heat dissipation structure (4) near the end face.

2. The sealing rear cover for a car headlight with heat dissipation function according to claim 1, characterized in that: The outer wall of the back cover body (1) is provided with a plurality of heat dissipation holes (11) evenly distributed near the bottom. The ports of the back cover body (1) are symmetrically fixedly connected with buckles (15) on both sides.

3. The sealing rear cover for a car headlight with heat dissipation function according to claim 1, characterized in that: The ventilation slot (2) is U-shaped, and the inner wall of the ventilation slot (2) is provided with a guide plate (21), and the guide plate (21) is inclined.

4. The sealing rear cover for a car headlight with heat dissipation function according to claim 1, characterized in that: The port of the thermally conductive silicone (3) is in close contact with the inner wall of the back cover body (1), and a sealing gasket (31) is provided on the end face. A card (32) is provided on the end face of the sealing gasket (31).

5. A sealing rear cover for a car headlight with heat dissipation function according to claim 4, characterized in that: The card (32) is set as a three-quarter ring and is embedded in the card slot (14) opened at the corresponding position on the inner wall of the back cover body (1).

6. The sealing rear cover for a car headlight with heat dissipation function according to claim 1, characterized in that: The heat dissipation structure (4) includes a solid ring (41), on the outer wall of the solid ring (41) a plurality of heat dissipation fins (42) are uniformly fixedly connected, and on the inner wall of the solid ring (41) a plurality of positioning blocks (43) are uniformly fixedly connected, and the positioning blocks (43) are fixedly connected to the heat dissipation fins (42).

7. A sealing rear cover for a car headlight with heat dissipation function according to claim 6, characterized in that: The fixed ring (41) is sleeved inside the limiting groove (12) opened on the outer wall of the back cover body (1), and the multiple positioning blocks (43) are respectively embedded in the multiple positioning holes (13) opened in the limiting groove (12), and the multiple heat dissipation fins (42) are all attached to the outer wall of the back cover body (1).

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