CN105737115A - LED headlamp heat conduction structure - Google Patents

LED headlamp heat conduction structure Download PDF

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Publication number
CN105737115A
CN105737115A CN201410759138.XA CN201410759138A CN105737115A CN 105737115 A CN105737115 A CN 105737115A CN 201410759138 A CN201410759138 A CN 201410759138A CN 105737115 A CN105737115 A CN 105737115A
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CN
China
Prior art keywords
led
aluminum alloy
heat pipe
conductive
semi
Prior art date
Application number
CN201410759138.XA
Other languages
Chinese (zh)
Inventor
陈耀德
刘迎
谢友冬
王海林
陈杰恒
罗日辉
胡建华
张昭
李金春
吴世杰
Original Assignee
广东雪莱特光电科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 广东雪莱特光电科技股份有限公司 filed Critical 广东雪莱特光电科技股份有限公司
Priority to CN201410759138.XA priority Critical patent/CN105737115A/en
Publication of CN105737115A publication Critical patent/CN105737115A/en

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Abstract

The invention relates to the field of automobile lamps, in particular to an LED headlamp heat conduction structure. The heat conduction structure comprises one or more LED substrates, a copper heat conduction tube and aluminum alloy cooling fins. An LED chip is arranged on the LED substrates, and the LED chip is a 5*1 or 4*1 array. The LED substrates are attached to one end of the copper heat conduction tube through a heat conduction adhesive. The aluminum alloy cooling fins are arranged in an annular shape and arranged at the other end of the copper heat conduction tube in a sleeving way. The aluminum alloy cooling fins and the copper heat conduction tube are fixedly connected by means of a heat conduction adhesive. The copper heat conduction tube is provided with an automobile lamp installation position. The LED headlamp heat conduction structure can effectively and quickly transmit heat generated by the LED chip to the cooling fins, and heat dissipation is achieved through the aluminum alloy cooling fins.

Description

LED headlamp conductive structure
Technical field
The present invention relates to auto lamp field, in particular to LED headlamp conductive structure.
Background technology
The original-pack headlight configuration of the automobile in Chinese market, low and middle-grade vehicles are dispatched from the factory as reducing cost based on Halogen bulb, part luxury car is configured with HID headlight, and only the vehicle of about 1% is dispatched from the factory and carried LED headlamp, draws prediction according to sea, 2014, whole domestic market will have 245,000 LED automobile head lamp overlapped, and this quantity to 2016 will be up to 907,500 sets, it is achieved turn over the growth of more than three times.From 2013-2019, the market share of LED headlamp will be risen to 10% by 1%.And the headlamp LED light source of existing car load is that the assembly for this vehicle designs, other vehicle can not compatible be suitable for.End in 2013, China's automobile quantity is 1.37 hundred million, and Global Auto quantity alreadys more than 1,000,000,000.Assume the Halogen and the HID lamp that have a kind of LED headlamp product can directly replace these automobiles, such as H1, H3, H4, H7, D1S, D1R etc..Meeting relevant local laws and regulations requirement after replacing, and possess enough performances, price, the life-span is long, energy-conservation, and safety dismounts convenience, outward appearance, the advantage such as after sale, and this LED headlamp would is that and haves a great attraction, and market potential would is that very huge.And the technical bottleneck of at present LED headlamp repacking is how to realize good radiating effect in the limited space of conventional lamp.
Summary of the invention
It is an object of the invention to provide a kind of LED headlamp conductive structure, to solve to be adapted as heat dissipation problem during LED headlamp.
Embodiments provide a kind of LED headlamp conductive structure, including: more than one LED-baseplate, copper heat pipe, aluminum alloy heat sink;Wherein, described LED-baseplate arranging LED chip, described LED chip is 5 × 1 or 4 × 1 arrays;Described LED-baseplate is pasted on one end of described copper heat pipe by heat-conductive bonding agent;Described aluminum alloy heat sink is circular, is placed on the other end of described copper heat pipe;Described copper heat pipe is provided with car light installation position.
In certain embodiments, it is preferred to, described LED-baseplate is two, is pasted on the side of described copper heat pipe respectively, and is respectively at the two ends of same diameter.
In certain embodiments, it is preferred to, the contact surface of described copper heat pipe and described LED-baseplate is plane.
In certain embodiments, it is preferred to, the middle part socket cylinder boss of described copper heat pipe, described cylinder boss is described car light installation position.
In certain embodiments, it is preferred to, described cylinder boss is provided with more than one screwed hole.
In certain embodiments, it is preferred to, described aluminum alloy heat sink is by two relative interference pressings of semi-circular aluminum alloy heat sink.
In certain embodiments, it is preferred to, described semi-circular aluminum alloy heat sink includes: semi-circular post and the radiating fin of outside scatter distributions centered by described semi-circular post;Described semi-circular column sleeve is outside described copper heat pipe.
In certain embodiments, it is preferred to, the two ends of described semi-circular post are provided with fixed via, the end face of the described fixed via described semi-circular post of traverse.
In certain embodiments, it is preferred to, it is provided with LED in described aluminum alloy heat sink and drives storage chamber.
In certain embodiments, it is preferred to, described LED headlamp conductive structure also includes fan, and described fan is fixedly connected on the other end of described copper heat pipe, and covering of the fan and described aluminum alloy heat sink are oppositely arranged.
The LED headlamp conductive structure that the embodiment of the present invention provides, compared with prior art, LED-baseplate adopts the LED chip of 5 × 1 or 4 × 1 arrays, serves as line source;LED-baseplate is by heat-conductive bonding agent and the bonding of copper heat pipe, and the heat energy that LED chip produces better is transmitted to copper heat pipe;The other end of copper heat pipe is socketed circular aluminum alloy heat sink, it is possible to increase heat dispersion.By this structure, it is possible to the effective heat by LED chip generation is quickly transmitted to fin, is dispelled the heat by aluminum alloy heat sink.
Accompanying drawing explanation
Fig. 1 is LED headlamp conductive structure schematic perspective view in one embodiment of the invention;
Fig. 2 is 5 × 1 array LED chip structure schematic diagrams in Fig. 1 of the present invention in LED headlamp conductive structure;
Fig. 3 is 4 × 1 array LED chip structure schematic diagrams in Fig. 1 of the present invention in LED headlamp conductive structure.
Detailed description of the invention
The present invention is described in further detail in conjunction with accompanying drawing below by specific embodiment.
Considering that in the repacking of current LED headlamp, radiating effect is undesirable, cause the low success rate of problem of repacking, the present invention provides a kind of LED headlamp conductive structure.
This LED headlamp conductive structure, including: more than one LED-baseplate, copper heat pipe, aluminum alloy heat sink;Wherein, described LED-baseplate arranging LED chip, described LED chip is 5 × 1 or 4 × 1 arrays;Described LED-baseplate is pasted on one end of described copper heat pipe by heat-conductive bonding agent;Described aluminum alloy heat sink is circular, is placed on the other end of described copper heat pipe, and the two adopts, and heat-conductive bonding agent is fixing to be connected;Described copper heat pipe is provided with car light installation position.
LED-baseplate adopts the LED chip of 5 × 1 or 4 × 1 arrays, serves as line source;LED-baseplate is by heat-conductive bonding agent and the bonding of copper heat pipe, and the heat energy that LED chip produces better is transmitted to copper heat pipe;The other end of copper heat pipe is socketed circular aluminum alloy heat sink, it is possible to increase heat dispersion.By this structure, it is possible to the effective heat by LED chip generation is quickly transmitted to fin, is dispelled the heat by aluminum alloy heat sink.
Below, this LED headlamp conductive structure is described in detail according to some specific embodiments:
A kind of LED headlamp conductive structure, as it is shown in figure 1, include: more than one LED-baseplate 2, copper heat pipe 1, aluminum alloy heat sink;Wherein, LED-baseplate 2 arranging LED chip 3, LED chip 3 is 5 × 1 or 4 × 1 arrays;LED-baseplate 2 is pasted on one end of copper heat pipe 1 by heat-conductive bonding agent;Aluminum alloy heat sink is circular, is placed on the other end of copper heat pipe 1, and the two adopts, and heat-conductive bonding agent is fixing to be connected;Copper heat pipe 1 is provided with car light installation position.Wherein, in Fig. 25 × 1 or in Fig. 34 × 1 arrays can form the effect of line source.The heat-conductive bonding agent of the preferred high thermal conductivity coefficient of heat-conductive bonding agent between LED-baseplate 2 and copper heat pipe 1, it is possible to rapidly the thermal conductance that LED chip 3 produces being entered copper heat pipe 1, thermal resistance is less.Aluminum alloy heat sink ring-type can receive heat and dispel the heat from each orientation.
In order to simulate the effect of existing car headlight as far as possible, LED-baseplate 2 is two, is pasted on the side of copper heat pipe 1 respectively, and is respectively at the two ends of same diameter.
Wherein, in order to all play the heat conductivility of copper heat pipe 1 as far as possible, copper heat pipe 1 place installing LED-baseplate 2 being pressed into plane, the contact surface of copper heat pipe 1 and LED-baseplate 2 is plane, improves the contact area of LED-baseplate 2 and copper heat pipe 1, improves heat-conducting effect.
This conductive structure needs to be installed to car light installation place, and this structure is carried out ingehious design by designer, is socketed cylinder boss 4 at the middle part of copper heat pipe 1, serves as car light installation position with cylinder boss 4.
Wherein, in order to make this conductive structure and car light position install closely, stablize, cylinder boss 4 is provided with more than one screwed hole, after this conductive structure snaps in car light position, is penetrated by screw in screwed hole, tightens.
Wherein, in order to increase stablizing effect, it is also possible at the outer employing spring fastener of this cylinder boss 4, utilize the telescopicing performance of spring to carry out position and fix.
Or, in order to increase stablizing effect, rotary buckle is set in the outside of this cylinder boss 4, utilizes the mode screwing in clamping to strengthen being stably connected with of this conductive structure and car light position.
In order to improve aluminum alloy heat sink radiating effect, and stable being enclosed within copper heat pipe 1, aluminum alloy heat sink is designed as two semi-circular aluminum alloy heat sinks by designer, two relative interference pressings of semi-circular aluminum alloy heat sink, tight set copper heat pipe 1.Further, designer can arrange heat-conductive bonding agent between the two contact surface, especially the heat-conductive bonding agent of high thermal conductivity, improves heat-conducting effect further.
In order to strengthen the connection between two semi-circular aluminum alloy heat sinks, semi-circular aluminum alloy heat sink includes: semi-circular post 5 and the radiating fin 6 of outside scatter distributions centered by semi-circular post 5;It is outside that semi-circular post 5 is placed on copper heat pipe 1.Half Ring-cylindrical is beneficial to the processing of interference pressing.
Further, the two ends of semi-circular post 5 are provided with fixed via, the end face of fixed via traverse semi-circular post 5.The fixed via of two semi-circular aluminum alloy heat sinks being oppositely arranged rushed across by bolt, carries out further position and fixes.
Wherein, LED chip 3 needs to adopt LED to drive and is operated, and in order to improve the succinct, attractive in appearance of global design, is provided with LED and drives storage chamber in aluminum alloy heat sink.Driving is positioned over heat spreader structures inside or is positioned over outside radiator by wire connection.
Based on various designs above, all have employed spontaneous radiating principle, in order to improve the effect of heat radiation, this conductive structure also includes fan, fan is fixedly connected on the other end of copper heat pipe 1, and covering of the fan and aluminum alloy heat sink are oppositely arranged, from fan wind out to aluminum alloy heat sink, further speed up radiating effect.Blowing to radiator by high-revolving small fan, heat is dispersed to ambient air, plays obvious cooling-down effect.
During installation, according to the former corresponding LED headlamp of car light head type selecting, with the mode fixed lamp-socket (i.e. installation position) of spring clamping or rotary buckle.With lamp holder face for standard scores interface, chip part is positioned at inside assembly, and radiator and fan are positioned at outside assembly.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.

Claims (10)

1. a LED headlamp conductive structure, it is characterised in that including: more than one LED-baseplate, copper heat pipe, aluminum alloy heat sink;Wherein, described LED-baseplate arranging LED chip, described LED chip is 5 × 1 or 4 × 1 arrays;Described LED-baseplate is pasted on one end of described copper heat pipe by heat-conductive bonding agent;Described aluminum alloy heat sink is circular, is placed on the other end of described copper heat pipe, and the two adopts, and heat-conductive bonding agent is fixing to be connected;Described copper heat pipe is provided with car light installation position.
2. LED headlamp conductive structure as claimed in claim 1, it is characterised in that described LED-baseplate is two, is pasted on the side of described copper heat pipe respectively, and is respectively at the two ends of same diameter.
3. LED headlamp conductive structure as claimed in claim 2, it is characterised in that the contact surface of described copper heat pipe and described LED-baseplate is plane.
4. LED headlamp conductive structure as claimed in claim 1, it is characterised in that the middle part socket cylinder boss of described copper heat pipe, described cylinder boss is described car light installation position.
5. LED headlamp conductive structure as claimed in claim 4, it is characterised in that described cylinder boss is provided with more than one screwed hole.
6. LED headlamp conductive structure as claimed in claim 1, it is characterised in that described aluminum alloy heat sink is by two relative interference pressings of semi-circular aluminum alloy heat sink.
7. LED headlamp conductive structure as claimed in claim 6, it is characterised in that described semi-circular aluminum alloy heat sink includes: semi-circular post and the radiating fin of outside scatter distributions centered by described semi-circular post;
Described semi-circular column sleeve is outside described copper heat pipe.
8. LED headlamp conductive structure as claimed in claim 7, it is characterised in that the two ends of described semi-circular post are provided with fixed via, the end face of the described fixed via described semi-circular post of traverse.
9. the LED headlamp conductive structure as described in any one of claim 1-8, it is characterised in that be provided with LED in described aluminum alloy heat sink and drive storage chamber.
10. LED headlamp conductive structure as claimed in claim 9, it is characterised in that also including fan, described fan is fixedly connected on the other end of described copper heat pipe, and covering of the fan and described aluminum alloy heat sink are oppositely arranged.
CN201410759138.XA 2014-12-10 2014-12-10 LED headlamp heat conduction structure CN105737115A (en)

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Application Number Priority Date Filing Date Title
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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201344508Y (en) * 2009-02-13 2009-11-11 深圳市聚作实业有限公司 LED industrial and mining lamp with radiating device
CN103165792A (en) * 2011-12-19 2013-06-19 吴懿平 Light emitting diode (LED) heat-dissipation packaging structure, LED light and manufacturing method of LED heat-dissipation packaging structure
CN203099619U (en) * 2013-01-24 2013-07-31 邱耀文 Automotive headlight light-emitting diode (LED) light source
CN103335260A (en) * 2013-07-10 2013-10-02 广州市雷腾照明科技有限公司 Efficient radiating LED automotive headlamp
CN203231218U (en) * 2013-05-10 2013-10-09 谢彪 LED (light emitting diode) vehicle lamp with radiating fan
CN203501013U (en) * 2013-10-14 2014-03-26 深圳市森利普照明科技有限公司 Automobile LED headlight
CN203501010U (en) * 2013-09-05 2014-03-26 颜洪军 Automobile low-beam LED (light-emitting diode) headlamp
CN103925574A (en) * 2013-01-16 2014-07-16 广州市雷腾照明科技有限公司 High-efficiency heat dissipation device and LED (light-emitting diode) automobile lamp with same
CN204285394U (en) * 2014-12-10 2015-04-22 广东雪莱特光电科技股份有限公司 LED headlamp conductive structure

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201344508Y (en) * 2009-02-13 2009-11-11 深圳市聚作实业有限公司 LED industrial and mining lamp with radiating device
CN103165792A (en) * 2011-12-19 2013-06-19 吴懿平 Light emitting diode (LED) heat-dissipation packaging structure, LED light and manufacturing method of LED heat-dissipation packaging structure
CN103925574A (en) * 2013-01-16 2014-07-16 广州市雷腾照明科技有限公司 High-efficiency heat dissipation device and LED (light-emitting diode) automobile lamp with same
CN203099619U (en) * 2013-01-24 2013-07-31 邱耀文 Automotive headlight light-emitting diode (LED) light source
CN203231218U (en) * 2013-05-10 2013-10-09 谢彪 LED (light emitting diode) vehicle lamp with radiating fan
CN103335260A (en) * 2013-07-10 2013-10-02 广州市雷腾照明科技有限公司 Efficient radiating LED automotive headlamp
CN203501010U (en) * 2013-09-05 2014-03-26 颜洪军 Automobile low-beam LED (light-emitting diode) headlamp
CN203501013U (en) * 2013-10-14 2014-03-26 深圳市森利普照明科技有限公司 Automobile LED headlight
CN204285394U (en) * 2014-12-10 2015-04-22 广东雪莱特光电科技股份有限公司 LED headlamp conductive structure

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