CN204693248U - A kind of LED automobile head lamp - Google Patents
A kind of LED automobile head lamp Download PDFInfo
- Publication number
- CN204693248U CN204693248U CN201420735601.2U CN201420735601U CN204693248U CN 204693248 U CN204693248 U CN 204693248U CN 201420735601 U CN201420735601 U CN 201420735601U CN 204693248 U CN204693248 U CN 204693248U
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- Prior art keywords
- led
- led lamp
- lamp holder
- radiator
- automobile head
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Abstract
The utility model discloses a kind of LED automobile head lamp, comprise LED light source, LED lamp holder, power circuit, radiator and radiator fan; LED lamp holder is heat pipe, the hydraulic fluid that heat pipe comprises flat copper pipe shell and fills in copper pipe shell; LED light source comprises LED lamp bead and lamp plate, and lamp plate is double-sided copper-clad, and is filled with tin in the via hole of lamp plate, and lamp plate is welded in LED lamp holder surface.By lamp plate transition between LED lamp bead and LED lamp holder, and lamp plate adopts double-sided copper-clad and via hole to fill out tin and be welded in LED lamp holder, therefore between LED lamp bead and LED lamp holder by metallic tin and copper heat by conduction, make the heat of LED lamp bead fully to import in LED lamp holder; And LED lamp holder is heat pipe, inside heat pipe is mainly by vapour, the liquid phase-change heat transfer of hydraulic fluid, and thermal resistance is very little, therefore has the very high capacity of heat transmission, and its thermal conductivity factor is more than 300 times of fine copper; Therefore can reduce the light decay of LED lamp bead, and extend the service life of LED automobile head lamp.
Description
Technical field
The utility model relates to auto parts machinery field, specifically refers to a kind of LED automobile head lamp.
Background technology
Auto bulb is one of requisite accessory of automobile, is mainly used in night running illumination road surface ahead, adopts glass tengsten lamp as head lamp more than existing automobile on the market.But glass tengsten lamp is in ignition, its center temperatures as high 300 DEG C ~ 600 DEG C, and only have 200 ~ 400 hours service life, belong to loss product, need often change, cost is higher; And this lamp power is high, generally all at 55-60W, luminous flux but only has 800-1500LM, and whole light effect is lower than 30Lm/W; In addition, lamp body belongs to glassware, easily broken.Therefore, businessman releases LED automobile head lamp to replace traditional tengsten lamp, but the quality of LED automobile head lamp product is uneven, and subject matter is also the heat radiation of LED, and because of it, heat radiation is bad directly causes LED lamp bead light decay and affect service life.
Utility model content
The purpose of this utility model is to provide a kind of good heat dissipation effect, and light decay is little, the LED automobile head lamp of long service life.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of LED automobile head lamp, comprises LED light source, LED lamp holder, power circuit, radiator and radiator fan; Described LED lamp holder is heat pipe, the hydraulic fluid that described heat pipe comprises flat copper pipe shell and fills in copper pipe shell; Described LED light source comprises LED lamp bead and lamp plate, and described lamp plate is double-sided copper-clad, and is filled with tin in the via hole of described lamp plate, and described lamp plate is welded in described LED lamp holder surface.
The beneficial effect of the technical program is: by lamp plate transition between LED lamp bead and LED lamp holder, and lamp plate adopts double-sided copper-clad and via hole to fill out tin and be welded in LED lamp holder, therefore between LED lamp bead and LED lamp holder by metallic tin and copper heat by conduction, make the heat of LED lamp bead fully to import in LED lamp holder; And LED lamp holder is heat pipe, inside heat pipe is mainly by vapour, the liquid phase-change heat transfer of hydraulic fluid, and thermal resistance is very little, therefore has the very high capacity of heat transmission, and its thermal conductivity factor is more than 300 times of fine copper; Therefore can reduce the light decay of LED lamp bead, and extend the service life of LED automobile head lamp.
Further, described radiator is cup-shaped, and described LED lamp holder is inserted in the Bei Di center of described radiator, and described radiator fan is arranged at the cup-mouth end of described radiator, and the cup outer peripheral face of described radiator is evenly equipped with axial radiating groove.Described radiator fan outside is provided with protective cover, and described protective cover is fixed on the cup-mouth end of described radiator, and described protective cover just has air intake grid to the inlet side place of described radiator fan, and one end of described radiating groove communicates with the air side of described radiator fan.Its beneficial effect is: radiating groove not only increases the area of dissipation of radiator, and the part wind of radiator fan blows out from radiating groove, further enhances radiating effect.
Further, described LED light source has LED lamp bead described in two groups, and described in two groups, LED lamp bead is back-to-back located at the two sides of described LED lamp holder; The outside of described LED lamp holder is also provided with shell, and described shell just has window to described LED lamp bead place, and the outer surface of described shell is reflective surface.Shell not only can protect LED power, and its outer surface can arrange the reflective surface of multiple different angles according to light distribution requirements.
Further, described power circuit comprises rectification circuit and drive circuit, and described drive circuit is arranged at the inside of described radiator, and described rectification circuit is arranged in the plug of circumscripted power line; Described rectification circuit is circuit of synchronous rectification.Circuit of synchronous rectification adopts FET, and small volume, traditional LED automobile head lamp has an independently external power supply, and this programme is then equivalent to the space decreasing an external power supply.
Further, described driving circuit section comprises voltage regulator module, fan-driving module, LED constant current driver module, LED protection module and distance-light control module.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is the structural blast schematic diagram of the utility model LED automobile head lamp;
Fig. 2 is the utility model circuit construction of electric power schematic diagram;
Wherein: 1.LED light source; 2.LED lamp support; 3. radiator; 31. annulus; 311. radiating groove; 32. connecting portions; 4. radiator fan; 5. protective cover; 6. shell; 7. Fixing clamp-seat; 8. plug.
Detailed description of the invention
With reference to a kind of LED automobile head lamp shown in figure 1, a kind of LED automobile head lamp, comprises LED light source 1, LED lamp holder 2, power circuit, radiator 3 and radiator fan 4.Described LED lamp holder 2 is heat pipe, and described heat pipe comprises flat copper pipe shell and is close to the liquid-sucking core of copper inner wall of tube shell, fills with appropriate hydraulic fluid after copper pipe shell is pumped into negative pressure.One end of heat pipe is evaporator section, the other end is condensation segment, liquid carburation by evaporation when one end of heat pipe is heated in liquid-sucking core, steam flows to other end releasing heat and condenses into liquid under small pressure reduction, liquid flows back to evaporator section along porous material by the effect of capillary force again, circulation like this is not own, and heat reaches the other end by one end of heat pipe.Described LED light source 1 comprises LED lamp bead and lamp plate, and described lamp plate is that copper is covered in two-sided thickening, and on described lamp plate, arrange more larger via hole, is filled with tin in via hole, and described lamp plate is welded in described LED lamp holder 2 surface.By lamp plate transition between LED lamp bead and LED lamp holder 2, and lamp plate adopts double-sided copper-clad and via hole to fill out tin and be welded in LED lamp holder 2, therefore between LED lamp bead and LED lamp holder 2 by metallic tin and copper heat by conduction, the heat of LED lamp bead can fully be imported in LED lamp holder 2; And LED lamp holder is heat pipe, inside heat pipe is mainly by vapour, the liquid phase-change heat transfer of hydraulic fluid, and thermal resistance is very little, therefore has the very high capacity of heat transmission, and its thermal conductivity factor is more than 300 times of fine copper; Therefore can reduce the light decay of LED lamp bead, and extend the service life of LED automobile head lamp.Described radiator 3 is cup-shaped, comprises the connecting portion 32 of annulus 31 and T-shaped, and described LED lamp holder 2 is inserted in the Bei Di center of described radiator 3, is namely inserted on connecting portion 32; Described radiator fan 4 is arranged at the cup-mouth end of described radiator 3, and the cup outer peripheral face of described radiator 3 is evenly equipped with axial radiating groove 311.Described radiator fan 4 outside is provided with protective cover 5; described protective cover 5 is fixed on the cup-mouth end of described radiator 3; described protective cover 5 just has air intake grid to the inlet side place of described radiator fan 4, and one end of described radiating groove 311 communicates with the air side of described radiator fan 4.Radiating groove 311 not only increases the area of dissipation of radiator, and the part wind of radiator fan 4 blows out from radiating groove, further enhances radiating effect.Described LED light source 1 has LED lamp bead described in two groups, and LED lamp bead described in two groups is back-to-back located at the two sides of described LED lamp holder 2; The outside of described LED lamp holder 2 is also provided with shell 6, and described shell 6 just has window to described LED lamp bead place, and the outer surface of described shell 6 is reflective surface.Shell 6 not only can protect LED light source 1, and its outer surface can arrange the reflective surface of multiple different angles according to light distribution requirements.Radiator 3 is also provided with Fixing clamp-seat 7 with shell 6 junction of LED lamp holder 2, can install easily and replace traditional tungsten filament head lamp.
Shown in figure 2, described power circuit comprises rectification circuit and drive circuit, and described drive circuit is arranged at the inside of described radiator 3, and described rectification circuit is arranged in the plug 8 of circumscripted power line.Described rectification circuit can be diode rectifier circuit, also can be circuit of synchronous rectification, and circuit of synchronous rectification adopts FET rectification, small volume.Power circuit is divided into two parts to be integrated in after in original structure, is equivalent to the space decreasing an external power supply.Described driving circuit section comprises voltage regulator module, fan-driving module, LED constant current driver module, LED protection module and distance-light control module.Fan-driving module is that constant voltage drives, and LED protection module comprises overvoltage protection, overcurrent protection and overheat protector.
Above embodiment is just to illustrate instead of restriction the utility model, therefore all equivalences done according to the method described in the utility model patent claim change or modify, and are included in the utility model patent claim.
Claims (7)
1. a LED automobile head lamp, comprises LED light source, LED lamp holder, power circuit, radiator and radiator fan; It is characterized in that: described LED lamp holder is heat pipe, the hydraulic fluid that described heat pipe comprises flat copper pipe shell and fills in copper pipe shell; Described LED light source comprises LED lamp bead and lamp plate, and described lamp plate is double-sided copper-clad, and is filled with tin in the via hole of described lamp plate, and described lamp plate is welded in described LED lamp holder surface.
2. a kind of LED automobile head lamp according to claim 1, it is characterized in that: described radiator is cup-shaped, described LED lamp holder is inserted in the Bei Di center of described radiator, described radiator fan is arranged at the cup-mouth end of described radiator, and the cup outer peripheral face of described radiator is evenly equipped with axial radiating groove.
3. a kind of LED automobile head lamp according to claim 2; it is characterized in that: described radiator fan outside is provided with protective cover; described protective cover is fixed on the cup-mouth end of described radiator; described protective cover just has air intake grid to the inlet side place of described radiator fan, and one end of described radiating groove communicates with the air side of described radiator fan.
4. a kind of LED automobile head lamp according to claim 1, it is characterized in that: described LED light source has LED lamp bead described in two groups, described in two groups, LED lamp bead is back-to-back located at the two sides of described LED lamp holder; The outside of described LED lamp holder is also provided with shell, and described shell just has window to described LED lamp bead place, and the outer surface of described shell is reflective surface.
5. a kind of LED automobile head lamp according to any one of Claims 1-4, it is characterized in that: described power circuit comprises rectification circuit and drive circuit, described drive circuit is arranged at the inside of described radiator, and described rectification circuit is arranged in the plug of circumscripted power line.
6. a kind of LED automobile head lamp according to claim 5, is characterized in that: described rectification circuit is circuit of synchronous rectification.
7. a kind of LED automobile head lamp according to claim 5, is characterized in that: described driving circuit section comprises voltage regulator module, fan-driving module, LED constant current driver module, LED protection module and distance-light control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420735601.2U CN204693248U (en) | 2014-12-01 | 2014-12-01 | A kind of LED automobile head lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420735601.2U CN204693248U (en) | 2014-12-01 | 2014-12-01 | A kind of LED automobile head lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204693248U true CN204693248U (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420735601.2U Expired - Fee Related CN204693248U (en) | 2014-12-01 | 2014-12-01 | A kind of LED automobile head lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204693248U (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 |
| CN106247254A (en) * | 2016-08-31 | 2016-12-21 | 广州光为照明科技有限公司 | A kind of LED headlamp with semiconductor cooling device |
| CN106555964A (en) * | 2015-12-29 | 2017-04-05 | 江西宝荣光电科技有限公司 | A kind of LED light source device prepared for the LED light source device of headlight and with which |
| CN107575828A (en) * | 2017-11-01 | 2018-01-12 | 广东途猫科技有限公司 | A kind of headlight for vehicles of new energy materialses heat conduction and heat radiation |
| CN107781780A (en) * | 2017-11-17 | 2018-03-09 | 赵永继 | A kind of automobile LED headlight |
| TWI633268B (en) * | 2015-12-16 | 2018-08-21 | 廣州共鑄科技股份有限公司 | Three-dimensional three-dimensional uniform temperature plate, preparation method thereof and automobile headlight |
-
2014
- 2014-12-01 CN CN201420735601.2U patent/CN204693248U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240774A (en) * | 2015-11-18 | 2016-01-13 | 蒋敏 | LED vehicle lamp |
| TWI633268B (en) * | 2015-12-16 | 2018-08-21 | 廣州共鑄科技股份有限公司 | Three-dimensional three-dimensional uniform temperature plate, preparation method thereof and automobile headlight |
| CN106555964A (en) * | 2015-12-29 | 2017-04-05 | 江西宝荣光电科技有限公司 | A kind of LED light source device prepared for the LED light source device of headlight and with which |
| CN106247254A (en) * | 2016-08-31 | 2016-12-21 | 广州光为照明科技有限公司 | A kind of LED headlamp with semiconductor cooling device |
| CN107575828A (en) * | 2017-11-01 | 2018-01-12 | 广东途猫科技有限公司 | A kind of headlight for vehicles of new energy materialses heat conduction and heat radiation |
| CN107781780A (en) * | 2017-11-17 | 2018-03-09 | 赵永继 | A kind of automobile LED headlight |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20151201 |
|
| EXPY | Termination of patent right or utility model |