Automobile lampshade with heat dissipation structure

Abstract

The utility model discloses an automobile lamp shade with a heat dissipation structure, which comprises an automobile lamp inner shade and an automobile lamp outer shade, the automobile lamp inner shade is mounted outside an LED lamp arranged on one side of a lamp holder, a heat dissipation ring is arranged in the automobile lamp inner shade, a lens is arranged at a light outlet of the automobile lamp inner shade, and the automobile lamp outer shade is mounted on the outer side of the automobile lamp inner shade. An air inlet is formed in the bottom of the side, close to the inner lampshade, of the outer lampshade, and an air outlet is formed in the top of the side, close to the inner lampshade, of the outer lampshade. The heat dissipation fan and the heat extraction fan are arranged to enable air in the automobile lamp outer cover to circulate and take away heat in the automobile lamp outer cover, the heat generated by the LED lamp is led out and dissipated from inside to outside in cooperation with the heat dissipation ring and the cold supply pipe in the automobile lamp inner cover, and therefore the temperature of the automobile lamp cover is kept within a reasonable range, and the automobile lamp is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of vehicle lamps, in particular to a vehicle lamp cover with a heat dissipation structure. Background Art

[0002] The Chinese patent published with announcement number: CN104214662B is specifically a LED automobile headlight cover, including a cover body and a back plate fixed to the rear side of the cover body, an air inlet is arranged on the rear side of the bottom of the cover body, an air outlet is arranged on the rear side of the top of the cover body, the outer side of the air inlet is connected to a tubular air inlet duct, and a cooling fan is arranged in the air inlet duct; a temperature control switch is arranged on the inner side of the top of the cover body, and the temperature control switch is electrically connected to the cooling fan; a shutter-type reflector is arranged on the inner side of the air inlet and the air outlet, and the device can effectively balance the temperature difference between the inside and outside of the headlight to a certain extent, and effectively prevent fog and deformation of components due to heat.

[0003] However, the patent only dissipates heat in the headlight cover. In reality, the heat in the headlight cover mostly comes from LED lamps. The heat generated by LED lamps is mostly concentrated in the headlight inner cover and enters the headlight cover through heat conduction. Therefore, the effect of dissipating heat only in the headlight cover cannot achieve the expected effect. Therefore, we propose a car headlight cover with heat dissipation effect. Utility Model Content

[0004] The utility model aims to provide a car lamp cover with a heat dissipation structure. By arranging the heat dissipation structure in both the car lamp outer cover and the car lamp inner cover, heat is conducted out from the inside to the outside, and the heat is dissipated from the heat source, so that the heat dissipation effect is more effective, thereby solving the problems in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A car lampshade with a heat dissipation structure comprises an inner lampshade and an outer lampshade, wherein the inner lampshade is installed on the outside of an LED lamp arranged on one side of a lamp holder, a heat dissipation ring is arranged in the inner lampshade, a lens is arranged at a light outlet of the inner lampshade, the outer lampshade is installed on the outside of the inner lampshade, an air inlet is arranged at the bottom of the outer lampshade close to one side of the inner lampshade, and an air outlet is arranged at the top of the outer lampshade close to one side of the inner lampshade.

[0007] Preferably, a plurality of reflective rings are provided on the inner wall of the inner cover of the vehicle lamp, and the reflective rings are combined into a cylindrical reflective surface.

[0008] Preferably, the diameters of adjacent reflective rings gradually increase from the inside to the outside, and the direction of the side walls of the reflective rings is the same as the direction of the side walls of the inner cover of the vehicle lamp.

[0009] Preferably, the head and tail of the reflective ring are connected via a heat dissipation ring, and the plane where the heat dissipation ring is located is parallel to the plane where the lens is located.

[0010] Preferably, a heat dissipation groove is provided inside the side wall of the inner cover of the vehicle lamp, and a cooling pipe is provided in the heat dissipation groove.

[0011] Preferably, the cooling pipe is provided with an outgoing pipe and a return pipe, and the cooling pipe as a whole is a spirally wound structure.

[0012] Preferably, a threading hole is provided in the middle of the lamp holder, and the cooling pipe passes through the threading hole and is connected to the refrigeration equipment in the vehicle.

[0013] Preferably, an air inlet pipe adapted to the air inlet and an air outlet pipe adapted to the air outlet are provided on both sides of the lamp holder.

[0014] Preferably, a heat dissipation fan is provided in the air inlet, and a heat exhaust fan is provided in the air outlet.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. In the utility model, heat dissipation rings and reflective rings are arranged alternately, which not only ensures the light gathering effect of the inner cover of the headlight, but also can lead out the heat generated by the LED lamp and gathered in the inner cover of the headlight through the heat dissipation ring. The side wall of the inner cover of the headlight is provided with an outgoing pipe and a return pipe to transport cold air to the heat dissipation groove to absorb and take away the heat derived by the heat dissipation ring, thereby reducing the temperature of the inner cover of the headlight.

[0017] 2. The utility model provides a heat dissipation fan and a heat exhaust fan to circulate the air in the outer cover of the headlight and take away the internal heat. Together with the heat dissipation ring and the cooling pipe in the inner cover of the headlight, the heat generated by the LED lamp can be conducted and dissipated from the inside to the outside, thereby keeping the temperature of the car lamp cover within a reasonable range and avoiding damage to the headlight. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an axonometric view of the inner cover of the vehicle lamp of the utility model;

[0019] Figure 2 This is a cross-sectional view of the inner cover of the vehicle lamp of the present utility model;

[0020] Figure 3 This is an axonometric diagram of the cooling pipe of the utility model;

[0021] Figure 4 It is a schematic diagram of the vehicle lamp cover of the utility model.

[0022] In the figure: 1. Inner cover of the headlight; 11. Lens; 2. Outer cover of the headlight; 3. Lamp holder; 31. LED lamp; 32. Threading hole; 33. Air inlet pipe; 34. Air outlet pipe; 4. Heat dissipation ring; 5. Reflective ring; 6. Heat dissipation slot; 7. Cooling pipe; 71. Outgoing pipe; 72. Return pipe; 8. Cooling fan; 9. Heat exhaust fan. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In order to solve the problem that the existing technology only extracts the heat in the lamp cover and cannot effectively reduce the heat accumulated in the lamp, the following technical solution is provided. Figure 1-4 ;

[0025] A car lampshade with a heat dissipation structure comprises a car lamp inner cover 1 and a car lamp outer cover 2. The car lamp inner cover 1 is installed on the outside of an LED lamp 31 arranged on one side of a lamp holder 3. A heat dissipation ring 4 is provided in the car lamp inner cover 1. A lens 11 is provided at the light outlet of the car lamp inner cover 1. The car lamp outer cover 2 is installed on the outside of the car lamp inner cover 1. An air inlet is provided at the bottom of the car lamp outer cover 2 close to the car lamp inner cover 1. An air outlet is provided at the top of the car lamp outer cover 2 close to the car lamp inner cover 1. External air with a relatively low temperature enters the car lamp outer cover 2, and the air with a higher temperature inside is lifted to the top of the car lamp outer cover 2, and finally discharged through the air outlet at the top.

[0026] A plurality of reflective rings 5 ​​are arranged on the inner wall of the inner cover 1 of the headlight, and the reflective rings 5 ​​are combined into a cylindrical reflective surface; the diameters of adjacent reflective rings 5 ​​gradually increase from the inside to the outside, and the direction of the side walls of the reflective rings 5 ​​is the same as the direction of the side walls of the inner cover 1 of the headlight; the head and tail of the reflective rings 5 ​​are connected by a heat dissipation ring 4, and the plane where the heat dissipation ring 4 is located is parallel to the plane where the lens 11 is located. The heat dissipation ring 4 and the reflective ring 5 are interspersed to maintain the light gathering effect of the reflective ring 5, and the heat inside the inner cover 1 of the headlight can be exported through the heat dissipation ring 4. A heat conductive sheet is arranged inside the heat dissipation ring 4, and the heat conductive sheet is made of a material with good thermal conductivity, such as thermal conductive silicone, copper sheet and aluminum sheet.

[0027] A heat dissipation groove 6 is provided inside the side wall of the inner cover 1 of the headlight, that is, the side wall of the inner cover 1 of the headlight is a hollow structure, and a cooling pipe 7 is provided in the heat dissipation groove 6; the cooling pipe 7 is provided with an outgoing pipe 71 and a return pipe 72, and the cooling pipe 7 as a whole is a spirally wound structure arranged in the heat dissipation groove 6, and a threading hole 32 is provided in the middle of the lamp holder 3. The cooling pipe 7 passes through the threading hole 32 and is connected to the refrigeration equipment in the car. When the inside of the inner cover 1 of the headlight is cooled, the refrigeration equipment in the car supplies cold air into the heat dissipation groove 6 through the outgoing pipe 71 to absorb the heat conducted by the heat dissipation ring 4. The cold air after absorbing the heat returns to the refrigeration equipment through the return pipe 72, thereby taking away the heat in the inner cover 1 of the headlight.

[0028] An air inlet duct 33 adapted to the air inlet and an air outlet duct 34 adapted to the air outlet are provided on both sides of the lamp holder 3; a heat dissipation fan 8 is provided in the air inlet, and a heat exhaust fan 9 is provided in the air outlet. When the heat dissipation fan 8 is started, external air is allowed to enter the lamp cover 2 through the air inlet duct 33, and then the air is discharged from the air outlet duct 34 through the heat exhaust fan 9 to take away the heat inside the lamp cover 2.

[0029] Working principle: The heat dissipation ring 4 conducts the heat generated by the LED lamp 31 in the inner cover 1 of the headlight to the heat dissipation groove 6. The cold air in the outgoing pipe 71 absorbs the heat and takes the heat out of the inner cover 1 of the headlight through the return pipe 72, thereby cooling the inside of the inner cover 1 of the headlight; the heat dissipation fan 8 inputs external air into the outer cover 2 of the headlight, and outputs the air through the heat exhaust fan 9 and takes away the heat in the outer cover 2 of the headlight.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A car lamp cover with a heat dissipation structure, comprising an inner lamp cover (1) and an outer lamp cover (2), characterized in that: The inner lamp cover (1) is installed on the outside of an LED lamp (31) arranged on one side of a lamp holder (3); a heat dissipation ring (4) is arranged in the inner lamp cover (1); a lens (11) is arranged at a light outlet of the inner lamp cover (1); an outer lamp cover (2) is installed on the outside of the inner lamp cover (1); an air inlet is arranged at the bottom of the outer lamp cover (2) close to one side of the inner lamp cover (1); and an air outlet is arranged at the top of the outer lamp cover (2) close to one side of the inner lamp cover (1).

2. The automobile lampshade with a heat dissipation structure according to claim 1, characterized in that: A plurality of reflective rings (5) are arranged on the inner wall of the vehicle lamp inner cover (1), and the reflective rings (5) are combined to form a cylindrical reflective surface.

3. The automobile lampshade with a heat dissipation structure according to claim 2, characterized in that: The diameters of adjacent reflective rings (5) gradually increase from the inside to the outside, and the direction of the side walls of the reflective rings (5) is the same as the direction of the side walls of the vehicle lamp inner cover (1).

4. The automobile lampshade with a heat dissipation structure according to claim 3, characterized in that: The head and tail of the reflective ring (5) are connected via a heat dissipation ring (4), and the plane where the heat dissipation ring (4) is located is parallel to the plane where the lens (11) is located.

5. The automobile lamp cover with a heat dissipation structure according to claim 4, characterized in that: A heat dissipation groove (6) is provided inside the side wall of the vehicle lamp inner cover (1), and a cooling pipe (7) is provided inside the heat dissipation groove (6).

6. The automobile lampshade with a heat dissipation structure according to claim 5, characterized in that: The cooling pipe (7) is provided with an outgoing pipe (71) and a return pipe (72), and the cooling pipe (7) is a spirally wound structure as a whole.

7. The automobile lampshade with a heat dissipation structure according to claim 6, characterized in that: A threading hole (32) is provided in the middle of the lamp holder (3), and the cooling pipe (7) passes through the threading hole (32) and is connected to the refrigeration equipment in the vehicle.

8. The automobile lamp cover with a heat dissipation structure according to claim 7, characterized in that: An air inlet pipe (33) adapted to the air inlet and an air outlet pipe (34) adapted to the air outlet are provided on both sides of the lamp holder (3).

9. The automobile lamp cover with a heat dissipation structure according to claim 8, characterized in that: A heat dissipation fan (8) is provided in the air inlet, and a heat exhaust fan (9) is provided in the air outlet.

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