CN105737052A - LED headlamp - Google Patents
LED headlamp Download PDFInfo
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- CN105737052A CN105737052A CN201410757926.5A CN201410757926A CN105737052A CN 105737052 A CN105737052 A CN 105737052A CN 201410757926 A CN201410757926 A CN 201410757926A CN 105737052 A CN105737052 A CN 105737052A
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- led
- heat pipe
- led headlamp
- lamp bead
- copper heat
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention relates to the field of automobile lamps, in particular to an LED headlamp. The LED headlamp comprises an optical module and a heat conduction module; the optical module comprises two LED chips and a lens; the heat conduction module comprises a copper heat conduction pipe and a heat sink; the two LED chips are installed on corresponding substrates, and the two substrates adhere to the side surface of one end of the copper heat conduction pipe and are located at the two ends of the same diameter part respectively; the lens is located in front of the LED chips and is connected to one end of the copper heat conduction pipe; the heat sink is installed at the other end of the copper heat conduction pipe; each LED chip is formed by connecting five or four lamp beads arranged in one row in series; each lamp bead is driven by a constant-current source, the luminous flux is 800-1100 lumens, and the constant-current source is located inside a cavity inside the heat sink. According to the LED headlamp, a needed line source can be formed by the lamp beads of a small number, the required luminous flux can be realized, and the cost can be greatly lowered.
Description
Technical field
The present invention relates to auto lamp field, in particular to LED headlamp.
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%.
Optical design is a big difficult point of LED headlamp, the trendy Audi A8LLED headlight matrix arrangement mode of 25 Efficient LED chip 5 × 5 constitutes distance-light light fixture, so luxurious combination is made us acclaiming as the acme of perfection, general car load factory and rear dress market are because to consider the LED Material Cost of great number, make full use of the LED luminous energy sent and improve luminous efficiency, and meet photometric standards with minimal number of LED and can effectively reduce whole LED headlamp cost.
Summary of the invention
It is an object of the invention to provide a kind of LED headlamp, complicated to solve existing LED headlamp optical design, relatively costly problem.
Embodiments providing a kind of LED headlamp, including optical module and heat-conductive assembly, described optical module includes: two panels LED chip and lens；Described heat-conductive assembly includes: copper heat pipe and radiator；Two panels LED chip is respectively arranged in corresponding substrate, and two pieces of substrates are pasted on the side of described copper heat pipe one end respectively, and are respectively at the two ends of same diameter；Described lens are in the front of described LED chip, and are connected with one end of described copper heat pipe；Described radiator is installed on the other end of described copper heat pipe；Wherein,
Described LED chip is connected by the lamp bead of 5 or 4, and single-row arrangement；Each lamp bead is driven by constant-current source, and luminous flux is 800-1100 lumen, and described constant-current source drives in the cavity being placed within described radiator.
In certain embodiments, it is preferred to, the installation position of each lamp bead is provided with lamp bead angle adjusting piece.
In certain embodiments, it is preferably, described lamp bead angle adjusting piece includes: install ball and hole, described hole is arranged on described substrate, described installation ball is in described hole, and with described hole can 180 ° be rotationally connected, described installation ball sets mounting plane, and described lamp bead and mounting plane are fixed and be connected.
In certain embodiments, it is preferred to, between described substrate and described copper heat pipe, heat-conducting glue is set.
In certain embodiments, it is preferred to, described LED headlamp also includes lampshade, and described lampshade covers in described LED chip and its outer.
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, and described cylinder boss is provided with more than one screwed hole.
In certain embodiments, it is preferred to, described radiator is aluminum alloy heat sink, and 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, 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 that the embodiment of the present invention provides, compared with prior art, LED-baseplate adopts 5 or 4 lamp bead series connection, and single-row arrangement, each lamp bead is driven by constant-current source, and luminous flux is at 800-1100 lumen, and the luminous flux of whole LED chip reaches necessary requirement；And, two LED chips are relatively arranged on the side of copper heat pipe, are positioned at the two ends of same diameter, the light that LED lamp bead sends can global illuminating, be fully achieved requirement, and compare the 25 of Audi's headlight can high-power die, lamp bead makes consumption reduce, and cost reduces.
Accompanying drawing explanation
Fig. 1 is LED headlamp 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 in the application on various automobiles of the current LED headlamp, it is common to there is insufficient light or the huge problem of cost, the present invention provides a kind of LED headlamp.
This LED headlamp includes optical module and heat-conductive assembly, and optical module includes: two panels LED chip and lens；Heat-conductive assembly includes: copper heat pipe and radiator；Two panels LED chip is respectively arranged in corresponding substrate, and two pieces of substrates are pasted on the side of copper heat pipe one end respectively, and is respectively at the two ends of same diameter；Lens are in the front of LED chip, and are connected with one end of copper heat pipe；Radiator is installed on the other end of copper heat pipe；Wherein, LED chip is connected by the lamp bead of 5 or 4, and single-row arrangement；Each lamp bead is driven by constant-current source, and luminous flux is 800-1100 lumen, and constant-current source drives in the cavity being placed within radiator..
Adopting 5 or 4 lamp bead series connection in LED-baseplate, single-row arrangement, each lamp bead is driven by constant-current source, and luminous flux is at 800-1100 lumen, and the luminous flux of whole LED chip reaches necessary requirement；And, two LED chips are relatively arranged on the side of copper heat pipe, are positioned at the two ends of same diameter, the light that LED lamp bead sends can global illuminating, be fully achieved requirement, and compare the 25 of Audi's headlight can high-power die, lamp bead makes consumption reduce, and cost reduces.
Below, this LED headlamp is described in detail according to some specific embodiments:
A kind of LED headlamp, as it is shown in figure 1, include optical module and heat-conductive assembly, optical module includes: two panels LED chip 3 and lens 7；Heat-conductive assembly includes: copper heat pipe and radiator；Two panels LED chip 3 is respectively arranged in corresponding substrate 2, and two pieces of substrates 2 are pasted on the side of copper heat pipe 1 one end respectively, and is respectively at the two ends of same diameter；Lens 7 are in the front of LED chip 3, and are connected with one end of copper heat pipe 1；Radiator is installed on the other end of copper heat pipe；Wherein, LED chip 3 is by such as Fig. 25 or the lamp bead series connection of 4 in Fig. 3, and single-row arrangement；Each lamp bead is driven by constant-current source, and luminous flux is 800-1100 lumen, and constant-current source drives in the cavity being placed within radiator.5 or 4 lamp bead series connection formation line sources on LED chip 3, two LED chips 3, at the two ends of diameter, irradiate to different directions two different positions, it is sufficient to reach required lighting angle.And luminous flux can reach required luminous flux at 800-1100 lumen.Lens 7 all light is focused, and reaches better radiation response.
In order to improve the uniformity of illumination as far as possible, the installation position of each lamp bead is provided with lamp bead angle adjusting piece.The irradiating angle of each lamp bead is finely tuned.
Wherein, inventor based on 180 ° of rotatable adjustments of lamp bead need lamp bead angle adjusting piece has been carried out specific design: lamp bead angle adjusting piece includes: install ball and hole, hole is arranged on substrate 2, ball is installed and is in hole, and with hole can 180 ° be rotationally connected, installing ball and set mounting plane, lamp bead is fixing with mounting plane to be connected.Installing ball and be positioned in hole, both by means of the flexible rotating principle of 360 ° of ball.
Owing to LED chip 3 can send more heat in irradiation, if derived by heat not in time, will cause that the lamp bead life-span is badly damaged, therefore, heat-conducting glue and the heat-conducting glue of preferred high heat conduction are set between substrate 2 and copper heat pipe 1, as far as possible quickly heat being imported copper heat pipe 1, thermal resistance is less.
In order to LED headlamp is carried out complete design, LED headlamp is devised lampshade 8 by designer, and lampshade 8 covers in LED chip 3 and lens 7 are outside.
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.Radiator is aluminum alloy heat sink, and aluminum alloy heat sink in the form of a ring, is enclosed within the outside of copper heat pipe 1, it is possible to receives heat from each orientation and dispels the heat.
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, it is characterised in that including optical module and heat-conductive assembly, described optical module includes: two panels LED chip and lens；Described heat-conductive assembly includes: copper heat pipe and radiator；Two panels LED chip is respectively arranged in corresponding substrate, and two pieces of substrates are pasted on the side of described copper heat pipe one end respectively, and are respectively at the two ends of same diameter；Described lens are in the front of described LED chip, and are connected with one end of described copper heat pipe；Described radiator is installed on the other end of described copper heat pipe；Wherein,
Described LED chip is connected by the lamp bead of 5 or 4, and single-row arrangement；Each lamp bead is driven by constant-current source, and luminous flux is 800-1100 lumen, and described constant-current source drives in the cavity being placed within described radiator.
2. LED headlamp as claimed in claim 1, it is characterised in that the installation position of each lamp bead is provided with lamp bead angle adjusting piece.
3. LED headlamp as claimed in claim 2, it is characterized in that, described lamp bead angle adjusting piece includes: install ball and hole, described hole is arranged on described substrate, described installation ball is in described hole, and with described hole can 180 ° be rotationally connected, described installation ball sets mounting plane, and described lamp bead and mounting plane are fixed and be connected.
4. LED headlamp as claimed in claim 1, it is characterised in that between described substrate and described copper heat pipe, heat-conducting glue is set.
5. the LED headlamp as described in any one of claim 1-4, it is characterised in that also including lampshade, described lampshade covers in described LED chip and its outer.
6. LED headlamp as claimed in claim 5, it is characterised in that the middle part socket cylinder boss of described copper heat pipe, described cylinder boss is car light installation position, and described cylinder boss is provided with more than one screwed hole.
7. LED headlamp as claimed in claim 6, it is characterised in that described radiator is aluminum alloy heat sink, and described aluminum alloy heat sink is by two relative interference pressings of semi-circular aluminum alloy heat sink.
8. LED headlamp as claimed in claim 7, 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.
9. LED headlamp 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.
10. LED headlamp 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410757926.5A CN105737052A (en) | 2014-12-10 | 2014-12-10 | LED headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410757926.5A CN105737052A (en) | 2014-12-10 | 2014-12-10 | LED headlamp |
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| Publication Number | Publication Date |
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| CN105737052A true CN105737052A (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410757926.5A Pending CN105737052A (en) | 2014-12-10 | 2014-12-10 | LED headlamp |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090653A (en) * | 2016-08-19 | 2016-11-09 | 东莞市闻誉实业有限公司 | Tubular radiating lamp |
| CN106838764A (en) * | 2017-01-20 | 2017-06-13 | 佛山市塔孚汽车照明有限公司 | LED headlamp |
| CN107178749A (en) * | 2017-06-09 | 2017-09-19 | 江西省绿野汽车照明有限公司 | Auto bulb |
| CN109027959A (en) * | 2018-07-11 | 2018-12-18 | 重庆金祺龙智能科技有限公司 | A kind of higher motorcycle LED headlight of heat sinking performance |
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| CN202017981U (en) * | 2011-04-03 | 2011-10-26 | 东莞市星晖光电有限公司 | LED ceiling lamp |
| 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 |
| US20140293625A1 (en) * | 2013-03-26 | 2014-10-02 | Koito Manufacturing Co., Ltd. | Cooling unit and illuminating apparatus |
| CN204285237U (en) * | 2014-12-10 | 2015-04-22 | 广东雪莱特光电科技股份有限公司 | LED headlamp |
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2014
- 2014-12-10 CN CN201410757926.5A patent/CN105737052A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202017981U (en) * | 2011-04-03 | 2011-10-26 | 东莞市星晖光电有限公司 | LED ceiling lamp |
| CN203099619U (en) * | 2013-01-24 | 2013-07-31 | 邱耀文 | Automotive headlight light-emitting diode (LED) light source |
| US20140293625A1 (en) * | 2013-03-26 | 2014-10-02 | Koito Manufacturing Co., Ltd. | Cooling unit and illuminating apparatus |
| 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 |
| CN204285237U (en) * | 2014-12-10 | 2015-04-22 | 广东雪莱特光电科技股份有限公司 | LED headlamp |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090653A (en) * | 2016-08-19 | 2016-11-09 | 东莞市闻誉实业有限公司 | Tubular radiating lamp |
| CN106838764A (en) * | 2017-01-20 | 2017-06-13 | 佛山市塔孚汽车照明有限公司 | LED headlamp |
| CN107178749A (en) * | 2017-06-09 | 2017-09-19 | 江西省绿野汽车照明有限公司 | Auto bulb |
| CN109027959A (en) * | 2018-07-11 | 2018-12-18 | 重庆金祺龙智能科技有限公司 | A kind of higher motorcycle LED headlight of heat sinking performance |
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