CN204534370U - A kind of automotive LED headlamp with heat pipe heat radiation - Google Patents
A kind of automotive LED headlamp with heat pipe heat radiation Download PDFInfo
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- CN204534370U CN204534370U CN201520080331.0U CN201520080331U CN204534370U CN 204534370 U CN204534370 U CN 204534370U CN 201520080331 U CN201520080331 U CN 201520080331U CN 204534370 U CN204534370 U CN 204534370U
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- heat pipe
- fin
- lamp socket
- resistance
- shaped lamp
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- 230000005855 radiation Effects 0.000 title claims abstract description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052802 copper Inorganic materials 0.000 claims abstract description 27
- 239000010949 copper Substances 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
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- 238000010586 diagram Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
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- 238000009834 vaporization Methods 0.000 description 1
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- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a kind of automotive LED headlamp with heat pipe heat radiation, the fan comprising fin-shaped lamp socket, lamp panel, heat pipe and be arranged on bottom fin-shaped lamp socket, described fin-shaped lamp socket comprises multiple radiating fin, described lamp panel is arranged on the top of described fin-shaped lamp socket, the top of described fin-shaped lamp socket is provided with a groove, one end of described heat pipe to be inserted in this groove and is contacted with radiating fin, and the other end of described heat pipe is outside exposed and be welded with a copper base, and described copper base is provided with LED light source.The utility model is by the combination of fin-shaped lamp socket, heat pipe and copper base, dispel the heat to the heat that LED light source produces, good heat dissipation effect, can reduce the junction temperature of LED light source quickly and efficiently, improve the life-span of LED light source, can be widely used in automobile LED headlamp manufacturing.
Description
Technical field
The utility model relates to automobile LED headlamp lighting field, particularly relates to a kind of automotive LED headlamp with heat pipe heat radiation.
Background technology
As everyone knows, along with the progress of society, automobile is now very general has entered into the life of people, as a kind of transport facility, automobile needs to possess the ability run in night or dark surrounds, so present automobile or motor vehicle are all equipped with car light.
Experienced by electric light source headlamp, twin light lamp core headlamp, asymmetrical passing beam headlamp, halogen tungsten headlamp in the evolution of auto lamp successively, fill Xe lamp bulb, the several developing stage of Xe lamp bulb.The lighting market of auto lamp is mainly occupied by Halogen lamp LED and xenon lamp for a long time, but these two kinds of traditional lighting lamps all also exist fatal weakness in various aspects such as brightness, life-span, volume, heating degree, colour temperature adjustment and robustnesses.In recent years, along with the decline gradually of raising and the cost gradually of the luminous efficiency of light emitting diode (LED), semiconductor lighting becomes the development trend of modern illumination gradually, be described as the forth generation lighting electric light source after incandescent lamp, fluorescent lamp and electricity-saving lamp, be called as " 21 century green light source ".LED, as new type light source, has life-span long, energy-conservation, the advantage such as light quality is good, structure is simple, response is fast, voltage is low, volume is little.
LED applies progressively ripe as car headlamp, body light, brake lamp etc. and obtains good effect and economic benefit.But current LED headlamp mainly adopts fan cooling, and radiating effect is not good, when fan damages, LED light source will be too high and damage due to junction temperature, greatly reduce the life-span of automotive LED headlamp.
Utility model content
In order to solve above-mentioned technical problem, the purpose of this utility model is to provide a kind of automotive LED headlamp with heat pipe heat radiation.
The utility model solves the technical scheme that its technical problem adopts:
A kind of automotive LED headlamp with heat pipe heat radiation, the fan comprising fin-shaped lamp socket, lamp panel, heat pipe and be arranged on bottom fin-shaped lamp socket, described fin-shaped lamp socket comprises multiple radiating fin, described lamp panel is arranged on the top of described fin-shaped lamp socket, the top of described fin-shaped lamp socket is provided with a groove, one end of described heat pipe to be inserted in this groove and is contacted with radiating fin, and the other end of described heat pipe is outside exposed and be welded with a copper base, and described copper base is provided with LED light source.
Further, described heat pipe is provided with a cavity, and described compartment has received condensate liquid, and described heat pipe is provided with capillary wick on the inwall of cavity.
Further, described automotive LED headlamp is also provided with temperature protection circuit, and described temperature protection circuit comprises the thermistor be arranged on copper base.
Further, described temperature protection circuit also comprises dc source, the first resistance, the second resistance, the 3rd resistance, the first electric capacity, the second electric capacity, Zener diode, diode, triode and pwm chip;
The positive pole of described dc source is successively by being connected with the colelctor electrode of triode after the first resistance and the 3rd resistance, ground connection after the negative pole of described dc source is connected with the emitter stage of triode, connected node between described first resistance and the 3rd resistance is connected with one end of the negative pole of Zener diode, one end of the first electric capacity and the second resistance respectively, the positive pole of described Zener diode and the equal ground connection of the other end of the first electric capacity, the described other end of the second resistance is connected with the base stage of triode, and the base stage of described triode is also respectively by thermistor and the second capacity earth;
The colelctor electrode of described triode is connected with the positive pole of diode, and the negative pole of described diode is connected with the CS pin of pwm chip.
Further, described condensate liquid adopts water or ethanol.
Further, described lamp panel comprises H7 lamp panel, H11 lamp panel, 9005 lamp panels and 9006 lamp panels.
Further, described fin-shaped lamp socket adopts integrated molding fin-shaped lamp socket.
The beneficial effects of the utility model are: a kind of automotive LED headlamp with heat pipe heat radiation of the present utility model, the fan comprising fin-shaped lamp socket, lamp panel, heat pipe and be arranged on bottom fin-shaped lamp socket, described fin-shaped lamp socket comprises multiple radiating fin, described lamp panel is arranged on the top of described fin-shaped lamp socket, the top of described fin-shaped lamp socket is provided with a groove, one end of described heat pipe to be inserted in this groove and is contacted with radiating fin, the other end of described heat pipe is outside exposed and be welded with a copper base, and described copper base is provided with LED light source.The utility model is by the combination of fin-shaped lamp socket, heat pipe and copper base, and dispel the heat to the heat that LED light source produces, good heat dissipation effect, can reduce the junction temperature of LED light source quickly and efficiently, improves the life-span of LED light source.
And the temperature protection circuit arranged on copper base, the junction temperature of LED light source can be detected, when the junction temperature of LED light source is too high, is reduced the power of LED light source by pwm chip, thus LED light source is protected, improve its life-span.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structural representation of a kind of automotive LED headlamp with heat pipe heat radiation of the present utility model;
Fig. 2 is that each parts of a kind of automotive LED headlamp with heat pipe heat radiation of the present utility model split schematic diagram;
Fig. 3 is the perspective view of a kind of automotive LED headlamp with heat pipe heat radiation of the present utility model;
Fig. 4 is the first assembling schematic diagram of a kind of automotive LED headlamp with heat pipe heat radiation of the present utility model;
Fig. 5 is the one the second assembling schematic diagrames of a kind of automotive LED headlamp with heat pipe heat radiation of the present utility model;
Fig. 6 is the one or three assembling schematic diagram of a kind of automotive LED headlamp with heat pipe heat radiation of the present utility model;
Fig. 7 is the heat transfer theory figure of the heat pipe of a kind of automotive LED headlamp with heat pipe heat radiation of the present utility model;
Fig. 8 is the circuit theory diagrams of the temperature protection circuit of a kind of automotive LED headlamp with heat pipe heat radiation of the present utility model.
Detailed description of the invention
The utility model provides a kind of automotive LED headlamp with heat pipe heat radiation, the fan comprising fin-shaped lamp socket, lamp panel, heat pipe and be arranged on bottom fin-shaped lamp socket, described fin-shaped lamp socket comprises multiple radiating fin, described lamp panel is arranged on the top of described fin-shaped lamp socket, the top of described fin-shaped lamp socket is provided with a groove, one end of described heat pipe to be inserted in this groove and is contacted with radiating fin, and the other end of described heat pipe is outside exposed and be welded with a copper base, and described copper base is provided with LED light source.
Be further used as preferred embodiment, described heat pipe is provided with a cavity, and described compartment has received condensate liquid, and described heat pipe is provided with capillary wick on the inwall of cavity.
Be further used as preferred embodiment, described automotive LED headlamp is also provided with temperature protection circuit, and described temperature protection circuit comprises the thermistor be arranged on copper base.
Be further used as preferred embodiment, described temperature protection circuit also comprises dc source, the first resistance, the second resistance, the 3rd resistance, the first electric capacity, the second electric capacity, Zener diode, diode, triode and pwm chip;
The positive pole of described dc source is successively by being connected with the colelctor electrode of triode after the first resistance and the 3rd resistance, ground connection after the negative pole of described dc source is connected with the emitter stage of triode, connected node between described first resistance and the 3rd resistance is connected with one end of the negative pole of Zener diode, one end of the first electric capacity and the second resistance respectively, the positive pole of described Zener diode and the equal ground connection of the other end of the first electric capacity, the described other end of the second resistance is connected with the base stage of triode, and the base stage of described triode is also respectively by thermistor and the second capacity earth;
The colelctor electrode of described triode is connected with the positive pole of diode, and the negative pole of described diode is connected with the CS pin of pwm chip.
Be further used as preferred embodiment, described condensate liquid adopts water or ethanol.
Be further used as preferred embodiment, described lamp panel comprises H7 lamp panel, H11 lamp panel, 9005 lamp panels and 9006 lamp panels.
Be further used as preferred embodiment, described fin-shaped lamp socket adopts integrated molding fin-shaped lamp socket.
Below in conjunction with specific embodiment, the utility model is elaborated.
With reference to Fig. 1 ~ Fig. 3, a kind of automotive LED headlamp with heat pipe heat radiation, the fan comprising fin-shaped lamp socket 2, lamp panel 3, heat pipe 7 and be arranged on bottom fin-shaped lamp socket 2, fin-shaped lamp socket 2 comprises multiple radiating fin, lamp panel 3 is arranged on the top of fin-shaped lamp socket 2, and the top of fin-shaped lamp socket 2 is provided with a groove, and one end of heat pipe 7 to be inserted in this groove and contacted with radiating fin, the other end of heat pipe 7 is outside exposed and be welded with a copper base 4, and copper base 4 is provided with LED light source 6.
In the present embodiment, fin-shaped lamp socket 2 adopts integrated molding fin-shaped lamp socket, adopts integrated design to reduce thermal resistance, and the afterbody design of fin-shaped lamp socket 2 can increasing heat radiation area, more fast and effeciently dispels the heat.
With reference to shown in Fig. 7, heat pipe 7 is provided with a cavity, and compartment has received condensate liquid, and heat pipe 7 is provided with capillary wick on the inwall of cavity.Condensate liquid adopts water or ethanol.
The heat transfer theory of heat pipe 7 is as follows: one end of heat pipe 7 is condensation segment, plays exothermic effects, and insert in the groove of fin-shaped lamp socket 2, the other end is evaporator section, plays heat-absorbing action, outside exposed.When the evaporator section of heat pipe 7 is heated, the evaporation of condensate liquid working medium in capillary wick produces steam, in " heat " pressure differential driving vapor flow to condensation segment between evaporator section and " cold " condensation segment and in condensation segment condensation.Become the condensate liquid working medium of liquid again under the driving of capillary force, the capillary structure along capillary wick flows back to evaporator section from condensation segment.Endlessly, heat reaches the other end by one end of heat pipe 7 in circulation like this.
Heat pipe 7 passes through vaporization and the liquefaction of inner condensate liquid, can is delivered to by the heat of LED light source 6 on integrated molding fin-shaped shape lamp socket 2 fast, reduces the junction temperature of LED light source 6, improves the life-span of LED light source 6.
Fan 1 is combined by screw 8 and nut 9, is arranged on the bottom of fin-shaped lamp socket 2, can rapidly the heat on fin-shaped lamp socket 2 be fallen apart.
In the present embodiment, automotive LED headlamp is also provided with temperature protection circuit, with reference to Fig. 8, temperature protection circuit comprises the thermistor 5 be arranged on copper base 4, also comprises dc source, the first resistance R1, the second resistance R2, the 3rd resistance R3, the first electric capacity C1, the second electric capacity C2, Zener diode ZD1, diode D1, triode Q1 and pwm chip;
The positive pole of dc source is connected with the colelctor electrode of triode Q1 by after the first resistance R1 and the 3rd resistance R3 successively, the negative pole of dc source is connected rear ground connection with the emitter stage of triode Q1, connected node between first resistance R1 and the 3rd resistance R3 respectively with the negative pole of Zener diode DZ1, one end of first electric capacity C1 and one end of the second resistance R2 connect, the positive pole of Zener diode DZ1 and the equal ground connection of the other end of the first electric capacity C1, the other end of the second resistance R2 is connected with the base stage of triode Q1, the base stage of triode Q1 is also respectively by thermistor 5 and the second electric capacity C2 ground connection,
The colelctor electrode of triode Q1 is connected with the positive pole of diode D1, and the negative pole of diode D1 is connected with the CS pin of pwm chip.
Thermistor 5 is welded on copper base 4; the temperature of copper base 4 can be detected; when fan 1 stall, LED light source 6 operating current is excessive or other reason causes the temperature of copper base 4 too high time; the resistance value of RT thermistor 5 reduces; the base current of triode Q1 reduces, and the voltage of diode D1 raises, thus controls the CS pin of pwm chip; reduce the power of LED light source 6, protection LED light source 6.How to carry out to LED light source 6 content that power control is comparative maturity in prior art according to the signal of CS pin particularly as pwm chip, the application repeats no more.
Lamp panel 3 comprises H7 lamp panel, H11 lamp panel, 9005 lamp panels and 9006 lamp panels, is arranged on fin-shaped lamp socket by screw 10.
With reference to Fig. 4, Fig. 5 and Fig. 6, this automotive LED headlamp is as follows in the erection process of production phase: as shown in Figure 4, contact with the radiating fin of fin-shaped lamp socket 2 in groove one end of heat pipe 7 being inserted integrated molding fin-shaped lamp socket 2, other end protrusion is also outside exposed; As shown in Figure 5, adopt instrument that the projection of heat pipe 7 is flattened; Then coat tin cream at the flattened section of heat pipe 7, load onto copper base 4, cross Reflow Soldering, copper base 4 is welded direct on heat pipe 7, as shown in Figure 6.Here copper base 4 can weld LED light source 6 and thermistor 5 in advance, also can weld LED light source 6 and thermistor 5 above-mentioned mistake in the process of Reflow Soldering.
The present embodiment is by the combination of integrated molding fin-shaped lamp socket 2, heat pipe 7 and copper base 4, and dispel the heat to the heat that LED light source 6 produces, good heat dissipation effect, can reduce the junction temperature of LED light source 6 quickly and efficiently, improves the life-span of LED light source 6.And the temperature protection circuit arranged on copper base 4, the junction temperature of LED light source 6 can be detected, when the junction temperature of LED light source 6 is too high, is reduced the power of LED light source 6 by pwm chip, thus LED light source 6 is protected, improve its life-span.
More than that better enforcement of the present utility model is illustrated, but the invention is not limited to embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (7)
1. the automotive LED headlamp with heat pipe heat radiation, it is characterized in that, the fan comprising fin-shaped lamp socket, lamp panel, heat pipe and be arranged on bottom fin-shaped lamp socket, described fin-shaped lamp socket comprises multiple radiating fin, described lamp panel is arranged on the top of described fin-shaped lamp socket, and the top of described fin-shaped lamp socket is provided with a groove, and one end of described heat pipe to be inserted in this groove and contacted with radiating fin, the other end of described heat pipe is outside exposed and be welded with a copper base, and described copper base is provided with LED light source.
2. a kind of automotive LED headlamp with heat pipe heat radiation according to claim 1, it is characterized in that, described heat pipe is provided with a cavity, and described compartment has received condensate liquid, and described heat pipe is provided with capillary wick on the inwall of cavity.
3. a kind of automotive LED headlamp with heat pipe heat radiation according to claim 1, it is characterized in that, described automotive LED headlamp is also provided with temperature protection circuit, and described temperature protection circuit comprises the thermistor be arranged on copper base.
4. a kind of automotive LED headlamp with heat pipe heat radiation according to claim 3, it is characterized in that, described temperature protection circuit also comprises dc source, the first resistance, the second resistance, the 3rd resistance, the first electric capacity, the second electric capacity, Zener diode, diode, triode and pwm chip;
The positive pole of described dc source is successively by being connected with the colelctor electrode of triode after the first resistance and the 3rd resistance, ground connection after the negative pole of described dc source is connected with the emitter stage of triode, connected node between described first resistance and the 3rd resistance is connected with one end of the negative pole of Zener diode, one end of the first electric capacity and the second resistance respectively, the positive pole of described Zener diode and the equal ground connection of the other end of the first electric capacity, the described other end of the second resistance is connected with the base stage of triode, and the base stage of described triode is also respectively by thermistor and the second capacity earth;
The colelctor electrode of described triode is connected with the positive pole of diode, and the negative pole of described diode is connected with the CS pin of pwm chip.
5. a kind of automotive LED headlamp with heat pipe heat radiation according to claim 2, is characterized in that, described condensate liquid adopts water or ethanol.
6. a kind of automotive LED headlamp with heat pipe heat radiation according to claim 1, is characterized in that, described lamp panel comprises H7 lamp panel, H11 lamp panel, 9005 lamp panels and 9006 lamp panels.
7. a kind of automotive LED headlamp with heat pipe heat radiation according to claim 1, is characterized in that, described fin-shaped lamp socket adopts integrated molding fin-shaped lamp socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080331.0U CN204534370U (en) | 2015-02-04 | 2015-02-04 | A kind of automotive LED headlamp with heat pipe heat radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080331.0U CN204534370U (en) | 2015-02-04 | 2015-02-04 | A kind of automotive LED headlamp with heat pipe heat radiation |
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| Publication Number | Publication Date |
|---|---|
| CN204534370U true CN204534370U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520080331.0U Expired - Fee Related CN204534370U (en) | 2015-02-04 | 2015-02-04 | A kind of automotive LED headlamp with heat pipe heat radiation |
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| CN (1) | CN204534370U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240774A (en) * | 2015-11-18 | 2016-01-13 | 蒋敏 | LED vehicle lamp |
| CN107511548A (en) * | 2017-08-21 | 2017-12-26 | 佛山东智明光电科技有限公司 | A kind of welding procedure and fixture of vacuum heat conduction pipe and copper base |
| TWI611138B (en) * | 2017-07-27 | 2018-01-11 | 福安工業股份有限公司 | Positioning structure for led substrate and heat dissipation device of lamp |
| TWI615579B (en) * | 2017-03-20 | 2018-02-21 | LED motor vehicle headlight heat pipe and manufacturing method thereof | |
| CN108591963A (en) * | 2018-04-18 | 2018-09-28 | 华南理工大学 | A kind of efficient radiator of high-power LED head lamp for motor vehicles |
| CN108916692A (en) * | 2018-10-08 | 2018-11-30 | 广东奥普特科技股份有限公司 | A kind of linear light emitting device of water cooling |
-
2015
- 2015-02-04 CN CN201520080331.0U patent/CN204534370U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240774A (en) * | 2015-11-18 | 2016-01-13 | 蒋敏 | LED vehicle lamp |
| TWI615579B (en) * | 2017-03-20 | 2018-02-21 | LED motor vehicle headlight heat pipe and manufacturing method thereof | |
| TWI611138B (en) * | 2017-07-27 | 2018-01-11 | 福安工業股份有限公司 | Positioning structure for led substrate and heat dissipation device of lamp |
| CN107511548A (en) * | 2017-08-21 | 2017-12-26 | 佛山东智明光电科技有限公司 | A kind of welding procedure and fixture of vacuum heat conduction pipe and copper base |
| CN107511548B (en) * | 2017-08-21 | 2020-01-03 | 佛山东智明光电科技有限公司 | Welding process and clamp for vacuum heat conduction pipe and copper substrate |
| CN108591963A (en) * | 2018-04-18 | 2018-09-28 | 华南理工大学 | A kind of efficient radiator of high-power LED head lamp for motor vehicles |
| CN108916692A (en) * | 2018-10-08 | 2018-11-30 | 广东奥普特科技股份有限公司 | A kind of linear light emitting device of water cooling |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 |