CN212537742U - Vehicle-mounted LED lamp easy to radiate heat and automobile shell - Google Patents

Abstract

The utility model provides a vehicle-mounted LED lamp easy to radiate heat, which comprises a lamp body assembled on an automobile shell; the lamp body comprises an LED component and a heat dissipation component; the LED assembly comprises a substrate and a lamp holder, wherein a plurality of lamp beads are arranged on one side surface of the substrate; the heat dissipation assembly comprises a heat dissipation block and a heat dissipation fan; the radiating block comprises a plurality of radiating fins, and a first radiating channel is formed between every two adjacent radiating fins; the radiating fins comprise second radiating channels, and the first radiating channels, the second radiating channels and wind generated by the radiating fan are in the same direction; the heat dissipation fan is fixedly arranged on the side edge of the heat dissipation block, and wind generated by the heat dissipation fan penetrates through the first heat dissipation channel and the second heat dissipation channel so as to take away heat on the heat dissipation fins. The utility model discloses still relate to an automobile housing. The utility model provides an on-vehicle LED lamp not only reduces the windage and still increases radiating fin's heat radiating area in order to take away more heats on the radiating fin, improves radiating effect and radiating efficiency.

Description

Vehicle-mounted LED lamp easy to radiate heat and automobile shell

Technical Field

The utility model relates to an on-vehicle LED lamp heat dissipation field especially relates to an easily radiating on-vehicle LED lamp.

Background

Currently, one type of vehicle lamp is of three types: halogen lamps, xenon lamps, LED lamps; among them, the halogen lamp has low brightness and short irradiation distance, which affects the driving safety. Although the xenon lamp light is bright, the starting time is slow, the light changing time is long, and the xenon lamp light is dark for dozens of meters, so that the driving safety is influenced. Compared with the other two types of lamps, the LED lamp has large luminous flux, is safer to drive at night, overcomes the overtaking sight blind area by instant starting, and has the longest service life; however, the LED lamp will cause a lot of heat to be gathered during the use process, and when the heat cannot be dissipated, the internal electronic components will be damaged, and the service life of the LED lamp will be reduced.

In the market, the heat generated by the LED headlamp is reduced by mounting a heat dissipation belt, a heat dissipation fin and the like on the LED headlamp, but the heat dissipation effect is not obvious; some LED headlamps utilize a heat dissipation fan to improve the heat dissipation effect, and the heat dissipation fan is disposed at the end of the substrate or the heat dissipation block, but the structure of the LED headlamp prevents the heat dissipation fan from dissipating heat.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an easily radiating on-vehicle LED lamp.

The utility model discloses a direction at the wind that radiator fan produced sets up a plurality of heat dissipation channel, not only reduces the windage and still increases heat radiating area, improves the radiating effect.

The utility model provides a vehicle-mounted LED lamp easy to radiate heat, which comprises a lamp body assembled on an automobile shell; the lamp body comprises an LED component and a heat dissipation component; wherein,

the LED assembly comprises a substrate and a lamp holder, and the substrate is embedded in the lamp holder; the LED lamp comprises a substrate, a plurality of LED lamps and a plurality of LED lamp holders, wherein the substrate is provided with a plurality of lamp beads on one side surface and used for receiving instructions and sending the instructions to the lamp beads, and the lamp beads execute a lighting mode or a lighting-off mode;

the heat dissipation assembly comprises a heat dissipation block and a heat dissipation fan; wherein,

the end part of the lamp holder is abutted against the heat dissipation block, so that heat emitted by the lamp beads is conducted to the heat dissipation block through the lamp holder;

the radiating block comprises a plurality of radiating fins, and a first radiating channel is formed between every two adjacent radiating fins; the heat dissipation fins comprise second heat dissipation channels, the first heat dissipation channels are parallel to the second heat dissipation channels, and the first heat dissipation channels, the second heat dissipation channels and wind generated by the heat dissipation fans are in the same direction;

the heat dissipation fan is fixedly arranged on the side edge of the heat dissipation block, and wind generated by the heat dissipation fan penetrates through the first heat dissipation channel and the second heat dissipation channel so as to take away heat on the heat dissipation fins.

Preferably, the side wall of the heat dissipation fin comprises a third heat dissipation channel, and the third heat dissipation channel is located in the first heat dissipation channel.

Preferably, the second heat dissipation channel and the third heat dissipation channel are disposed on the surface of the heat dissipation fin to form an open heat dissipation channel.

Preferably, the third heat dissipation channel is parallel to the first heat dissipation channel or the second heat dissipation channel.

Preferably, the lamp body further comprises a heat pipe, the substrate comprises a first substrate and a second substrate, and the heat pipe is fixedly welded between the first substrate and the second substrate; the heat pipe is of a flat strip structure, the evaporation end of the heat pipe is located between the first substrate and the second substrate, and the condensation end of the heat pipe is embedded in the heat dissipation block.

Preferably, a width of a cross section of the heat pipe is greater than a width of a cross section of the substrate.

Preferably, the length of the substrate is 2/3 to 4/5 of the length of the heat pipe.

Preferably, the heat dissipation block further comprises a fixing portion located at an end of the heat dissipation block; the lamp body further comprises a connecting plate, one side end of the connecting plate is sleeved on the fixing portion, and the other side end of the connecting plate is fixedly connected with the radiating fan, so that the radiating fan and the radiating block are located on the same straight line.

Preferably, the lamp body further comprises a heat dissipation cover, and the heat dissipation cover is covered on the heat dissipation block and the heat dissipation fan; the heat dissipation cover comprises a plurality of fixing columns for fixing the heat dissipation fan.

The utility model also provides an automobile shell, including an easily radiating on-vehicle LED lamp.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses an on-vehicle LED lamp and car casing of easy radiating, this LED lamp sets up radiator fan in the side of radiating block to set up first heat dissipation channel, second heat dissipation channel on the radiating fin of radiating block, not only reduce the windage and still increase radiating fin's heat radiating area in order to take away more heats on the radiating fin, improve radiating effect and radiating efficiency.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic structural diagram of a heat dissipation block of an easy-to-dissipate vehicle-mounted LED lamp of the present invention;

fig. 2 is a schematic structural view of an angle of an easy-to-radiate vehicle-mounted LED lamp of the present invention;

fig. 3 is a schematic view of a heat dissipation fan of an easy-to-dissipate vehicle-mounted LED lamp according to the present invention;

fig. 4 is a schematic diagram of a heat dissipation cover of an on-vehicle LED lamp easy to dissipate heat according to the present invention;

fig. 5 is a schematic diagram of a substrate and a heat pipe of an easy-to-radiate vehicle-mounted LED lamp according to the present invention;

reference numerals: 10. lamp socket cap, 20, lamp socket, 30, radiating component, 310, radiating block, 311, first fixing portion, 312, radiating fin, 313, groove, 314, second fixing portion, 315, second radiating channel, 316, first radiating channel, 320, radiating fan, 321, fan blade, 322, fixing hole, 40, heat pipe, 510, first base plate, 520, second base plate, 521, lamp bead, 60, first connecting plate, 80, radiating cover, 810, cover plate, 820, fixing column, 830, first through hole, 840, second through hole.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

The utility model provides an easily radiating on-vehicle LED lamp, present, appear on being applied to the LED lamp with the heat pipe in the market, its heat conductivility surpasss the heat conductivility of any known metal. Generally, the substrate is preferably a copper-based circuit board, the copper-based circuit board has high thermal conductivity, and the thermal conductivity of the copper-based circuit board is better than that of an aluminum substrate or an iron substrate; the copper-based circuit board conducts a large amount of heat generated by the lamp beads 521 in time. In order to obtain a better optical effect, that is, the optical position of the lamp bead 521 is required to be accurately installed, in the optical reflector for the vehicle lamp, there is only one optimal light source position point, and due to the limitation of the prior art, the effective light emitting angle of the LED of one lamp bead is lower than 180 °, so that two or more lamp beads are generally required to be combined to meet the use requirement of the vehicle lamp light. The distance between two or more lamp beads is as small as possible, so that all the lamp beads can obtain better light source position points. The heat pipes are generally fixed on two sides of a copper-based circuit board of a double-sided circuit and used for conducting heat emitted from the double-sided circuit board, but because a plurality of lamp beads and other circuits are integrated on the surface of the copper-based circuit board, the contact area between the heat pipes and the copper-based circuit board is small, and the capability of the heat pipes for conducting heat in time is reduced. Therefore, the utility model discloses in adopt single face circuit board in order to laminate the heat pipe in the back of copper base circuit board not set up the one side of lamp pearl and circuit promptly, install a plurality of lamp pearls respectively on two copper base circuit boards to be fixed in the heat pipe between two copper base circuit boards, and the heat absorption that the lamp pearl produced in time. The heat pipe is preferably fixed on the copper-based circuit board by means of welding, and the back surface of the copper-based circuit board is in full contact with the heat pipe and conducts heat on the copper-based circuit board in time.

Some on-vehicle LED lamps in the market are through installing radiator fan in its end, discharge the heat in the LED lamp, nevertheless because of the structure windage of LED lamp itself is too big, reduced radiator fan sparse thermal ability. The utility model discloses in provide one kind set up radiator fan in the side of radiating block and set up a plurality of heat dissipation channels unanimous with the direction of the wind that radiator fan produced fast in the heat dissipation to reduce the windage, improve the radiating effect.

Specifically, as shown in fig. 1-5, the utility model provides an easy-to-radiate vehicle-mounted LED lamp, which comprises a lamp body assembled on the automobile shell; the lamp body comprises an LED component and a heat dissipation component; wherein,

the LED assembly comprises a substrate and a lamp holder 20, wherein the substrate is embedded in the lamp holder 20; a plurality of lamp beads 521 are mounted on one side surface of the substrate, the substrate is used for receiving instructions and sending the instructions to the lamp beads 521, and the lamp beads 521 execute a lighting mode or a lighting-out mode;

the heat dissipation assembly 30 includes a heat dissipation block 310 and a heat dissipation fan 320; wherein,

the end of the lamp holder 20 abuts against the heat dissipation block 310, so that the heat emitted by the lamp bead 521 is conducted to the heat dissipation block 310 through the lamp holder 20;

the heat dissipation block 310 comprises a plurality of heat dissipation fins 312, and a first heat dissipation channel 316 is formed between adjacent heat dissipation fins 312; the heat dissipation fins 312 include second heat dissipation channels 315, the first heat dissipation channels 316 are parallel to the second heat dissipation channels 315, and the wind generated by the first heat dissipation channels 316, the second heat dissipation channels 315 and the heat dissipation fan 320 is in the same direction;

the heat dissipation fan 320 is fixedly installed at a side of the heat dissipation block 310, and wind generated by the heat dissipation fan 320 passes through the first heat dissipation channel 316 and the second heat dissipation channel 315 to take away heat from the heat dissipation fins 312. In one embodiment, as shown in fig. 1 and fig. 2, the wind direction generated by the heat dissipation fan 320 is in the same direction as the first heat dissipation channel 316 and the second heat dissipation channel 315, and the wind direction generated by the heat dissipation fan 320 is only the heat dissipation fan 320 and the heat dissipation block 310, and the heat dissipation channels on the heat dissipation block 310 not only reduce the resistance of the wind, but also take away more heat on the heat dissipation fins 312 when the wind passes through the first heat dissipation channel 316 and the second heat dissipation channel 315; the first heat dissipation channel 316 and the second heat dissipation channel 315 increase the heat dissipation area of the heat dissipation fins 312, thereby improving the heat dissipation effect and the heat dissipation efficiency.

The side wall of the heat dissipation fin 312 includes a plurality of third heat dissipation channels (not shown), and a plurality of the third heat dissipation channels are located in the first heat dissipation channel 316. In one embodiment, increasing the heat dissipation channels on the heat dissipation fins 312 not only increases the heat dissipation area on the heat dissipation fins 312, but also reduces the wind resistance, and increases the speed of taking away the heat on the heat dissipation fins 312, thereby increasing the heat dissipation efficiency. Therefore, the side walls of the heat dissipation fins 312 are provided with a plurality of third heat dissipation channels, so that the heat dissipation efficiency of the LED lamp is improved.

As shown in fig. 1, the second heat dissipation channel 315 and the third heat dissipation channel are disposed on the surface of the heat dissipation fin 312 to form an open heat dissipation channel. In one embodiment, the open heat dissipation channel increases the heat dissipation surface area of the heat dissipation fin; the second heat dissipation channel 315 and the third heat dissipation channel are preferably disposed on the surface of the heat dissipation fin 312, although the second heat dissipation channel 315 and the third heat dissipation channel may be located inside the heat dissipation fin 312, and the second heat dissipation channel 315 and the third heat dissipation channel disposed on the surface of the heat dissipation fin 312 may increase the heat dissipation area of the heat dissipation fin 312, thereby improving the heat dissipation efficiency. The third heat dissipation channel is parallel to the first heat dissipation channel 316 and the second heat dissipation channel 315, i.e. the direction of the wind generated by the heat dissipation fan 320 is the same.

As shown in fig. 5, the lamp body further includes a heat pipe 40, the substrates include a first substrate 510 and a second substrate 520, and the heat pipe 40 is fixedly welded between the first substrate 510 and the second substrate 520. In one embodiment, the heat pipe 40 is a heat conducting element, which makes full use of the principle of heat conduction and the rapid heat transfer property of the phase change medium, and the heat of the heat generating object is rapidly transferred through the heat pipe 40, and the heat conducting capacity exceeds the heat conducting capacity of any known metal. The heat pipe 40 is a heat pipe that uses the phase change process of the medium evaporating at the hot end and then condensing at the cold end, i.e., uses the latent heat of evaporation and the latent heat of condensation of the liquid, to conduct heat rapidly. The shell of the heat pipe is mostly a metal seamless steel pipe, and can also be a copper pipe, an aluminum pipe and the like. The heat pipe is welded between the first substrate 510 and the second substrate 520, so that the contact area between the first substrate 510 or the second substrate 520 and the heat pipe 40 is increased, and the heat conduction capability of the heat pipe 40 is improved.

The first substrate 510 and the second substrate 520 are preferably copper-based circuit boards, the shape of the copper-based circuit boards is generally a flat long structure, and the shape of the heat pipe 40 matches the shape of the first substrate 510 and the second substrate 520, it should be understood that the back surfaces of the first substrate 510 and the second substrate 520 are fixedly attached to the two sides of the heat pipe 40 through a welding process, the shape of the heat pipe 40 is set as required, and in this embodiment, the heat pipe 40 is preferably a flat long structure matching the shape of the first substrate 510 and the second substrate 520. Preferably, the cross-sectional area of heat pipe 40 is larger than the cross-sectional area of first substrate 510 or second substrate 520 to increase the conduction capability of heat pipe 40.

The heat pipe 40 is a flat strip structure, an evaporation end of the heat pipe 40 is located between the first substrate 510 and the second substrate 520, and a condensation end of the heat pipe 40 is embedded in the heat dissipation block 310; the width of the cross section of the heat pipe 40 is greater than the width of the cross section of the substrate. The length of the substrate is 2/3-4/5 of the length of the heat pipe 40. In one embodiment, as shown in fig. 2 and 5, the length of the heat pipe 40 is greater than the length of the substrate, and the condensation end of the heat pipe 40 is embedded in the heat dissipation block 310 to dissipate the heat dissipated by the condensation end of the heat pipe 40. The heat dissipation block 310 includes a groove 313 matching the condensation end of the heat pipe, and the condensation end of the heat pipe 40 is embedded in the groove 313, as shown in fig. 2, the heat dissipation block 310 includes a plurality of heat dissipation fins 312, and the heat dissipation fins 312 dissipate the heat dissipated by the condensation end of the heat pipe 40, so as to improve the heat dissipation effect of the LED lamp.

The heat dissipation block 310 further comprises a fixing part, and the fixing part is located at the end of the heat dissipation block 310; the lamp body further comprises a connecting plate, one side end of the connecting plate is sleeved on the fixing portion, and the other side end of the connecting plate is fixedly connected with the heat dissipation fan 320, so that the heat dissipation fan 320 and the heat dissipation block 310 are located on the same straight line. In one embodiment, as shown in fig. 1 and fig. 2, the heat dissipation block 310 and the heat dissipation fan 320 are fixedly connected by a connection board, so that the heat dissipation fan 320 and the heat dissipation block 310 are located on the same straight line. The connecting plate comprises a plurality of fixing holes, the fixing holes on the connecting plate are sleeved on the fixing parts of the radiating blocks, and then the connecting plate is fixed on the radiating fan, so that the radiating blocks are fixedly connected with the radiating fan.

The connecting plate comprises a first connecting plate 60 and a second connecting plate, the fixing portion comprises a first fixing portion 311 and a second fixing portion 314, and the first fixing portion 311 and the second fixing portion 314 are respectively located at two ends of the heat dissipation block 310; the first connecting plate 60 and the second connecting plate are respectively sleeved on the first fixing portion 311 and the second fixing portion 314, wherein the first connecting plate 60 plays a main fixing role, the second connecting plate plays an auxiliary fixing role, and the second connecting plate serves as a cover plate 810 of the heat dissipation cover, so that the heat dissipation cover 80 has integrity.

As shown in fig. 4, the lamp body further includes a heat dissipation cover 80, and the heat dissipation cover 80 is covered on the heat dissipation block 310 and the heat dissipation fan 320; the heat dissipation cover 80 includes a plurality of fixing posts 820 for fixing the heat dissipation fan 320. The heat dissipation cover 80 also prevents dust or other impurities from entering the heat dissipation assembly 30 to affect the heat dissipation effect.

As shown in fig. 3, the heat dissipation fan 320 is preferably a cylindrical structure, the heat dissipation fan includes a plurality of fan blades 321, the plurality of fan blades 321 are uniformly distributed on the sidewall of the cylindrical structure, and the wind direction formed by the plurality of fan blades 321 after the heat dissipation fan 320 rotates is centered on the circle center of the cross section of the cylindrical structure fan, it should be understood that the wind direction formed by the plurality of fan blades 321 and the heat dissipation channel of the heat dissipation block 310 are located in the same direction. The heat dissipation fan 320 further includes fixing holes 322, and the fixing holes 322 are matched with the fixing posts 820 on the heat dissipation cover 80, so that the heat dissipation cover 80 is fixedly mounted on the heat dissipation assembly 30.

The lamp body further comprises a lamp socket cap 10, and the lamp socket cap 10 is embedded at the tail end of the lamp socket 20. In one embodiment, as shown in fig. 2, the cap 10 is fitted to the end of the socket 20 to prevent dust and other impurities from entering the socket, thereby prolonging the service life of the LED lamp.

The utility model also provides an automobile shell, including an easily radiating on-vehicle LED lamp.

The utility model discloses an on-vehicle LED lamp and car casing of easy radiating, this LED lamp sets up radiator fan in the side of radiating block to set up first heat dissipation channel, second heat dissipation channel on the radiating fin of radiating block, not only reduce the windage and still increase radiating fin's heat radiating area in order to take away more heats on the radiating fin, improve radiating effect and radiating efficiency.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the utility model can be smoothly implemented by the ordinary technicians in the industry according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims (10)

1. An easily-radiating vehicle-mounted LED lamp comprises a lamp body assembled on an automobile shell; the LED lamp is characterized in that the lamp body comprises an LED component and a heat dissipation component; wherein,

the LED assembly comprises a substrate and a lamp holder, and the substrate is embedded in the lamp holder; the LED lamp comprises a substrate, a plurality of LED lamps and a plurality of LED lamp holders, wherein the substrate is provided with a plurality of lamp beads on one side surface and used for receiving instructions and sending the instructions to the lamp beads, and the lamp beads execute a lighting mode or a lighting-off mode;

the heat dissipation assembly comprises a heat dissipation block and a heat dissipation fan; wherein,

the end part of the lamp holder is abutted against the heat dissipation block, so that heat emitted by the lamp beads is conducted to the heat dissipation block through the lamp holder;

the radiating block comprises a plurality of radiating fins, and a first radiating channel is formed between every two adjacent radiating fins; the heat dissipation fins comprise second heat dissipation channels, the first heat dissipation channels are parallel to the second heat dissipation channels, and the first heat dissipation channels, the second heat dissipation channels and wind generated by the heat dissipation fans are in the same direction;

the heat dissipation fan is fixedly arranged on the side edge of the heat dissipation block, and wind generated by the heat dissipation fan penetrates through the first heat dissipation channel and the second heat dissipation channel so as to take away heat on the heat dissipation fins.

2. The vehicle-mounted LED lamp easy to dissipate heat according to claim 1, wherein the side walls of the heat dissipating fins comprise a plurality of third heat dissipating channels, and a plurality of the third heat dissipating channels are located in the first heat dissipating channels.

3. The vehicle-mounted LED lamp easy to dissipate heat as recited in claim 2, wherein the second heat dissipation channel and the third heat dissipation channel are disposed on the surface of the heat dissipation fin to form an open heat dissipation channel.

4. The vehicle-mounted LED lamp easy to dissipate heat as set forth in claim 2, wherein the third heat dissipation channel is parallel to the first heat dissipation channel or the second heat dissipation channel.

5. The vehicle-mounted LED lamp easy to dissipate heat according to claim 1, wherein the lamp body further comprises a heat pipe, the substrates comprise a first substrate and a second substrate, and the heat pipe is fixedly welded between the first substrate and the second substrate; the heat pipe is of a flat strip structure, the evaporation end of the heat pipe is located between the first substrate and the second substrate, and the condensation end of the heat pipe is embedded in the heat dissipation block.

6. The vehicle-mounted LED lamp easy to dissipate heat as claimed in claim 5, wherein the width of the cross section of the heat pipe is larger than the width of the cross section of the substrate.

7. The vehicle-mounted LED lamp easy to dissipate heat as claimed in claim 5, wherein the length of the substrate is 2/3 to 4/5 of the length of the heat pipe.

8. The vehicle-mounted LED lamp easy to dissipate heat as recited in claim 1, wherein the heat dissipating block further comprises a fixing portion, the fixing portion being located at an end portion of the heat dissipating block; the lamp body further comprises a connecting plate, one side end of the connecting plate is sleeved on the fixing portion, and the other side end of the connecting plate is fixedly connected with the radiating fan, so that the radiating fan and the radiating block are located on the same straight line.

9. The vehicle-mounted LED lamp easy to dissipate heat according to claim 1, wherein the lamp body further comprises a heat dissipation cover, and the heat dissipation cover is arranged on the heat dissipation block and the heat dissipation fan; the heat dissipation cover comprises a plurality of fixing columns for fixing the heat dissipation fan.

10. An automobile housing, characterized by comprising an easily heat-dissipating vehicle-mounted LED lamp according to any one of claims 1 to 9.

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