CN201335345Y - Heat radiation device for LED lamps of automobile - Google Patents
Heat radiation device for LED lamps of automobile Download PDFInfo
- Publication number
- CN201335345Y CN201335345Y CNU2008202146811U CN200820214681U CN201335345Y CN 201335345 Y CN201335345 Y CN 201335345Y CN U2008202146811 U CNU2008202146811 U CN U2008202146811U CN 200820214681 U CN200820214681 U CN 200820214681U CN 201335345 Y CN201335345 Y CN 201335345Y
- Authority
- CN
- China
- Prior art keywords
- heat
- white light
- heat pipe
- lamp housing
- fin
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 230000005855 radiation Effects 0.000 title abstract 2
- 238000009833 condensation Methods 0.000 claims abstract description 10
- 230000005494 condensation Effects 0.000 claims abstract description 9
- 239000000758 substrate Substances 0.000 claims description 21
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 239000012080 ambient air Substances 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 238000005286 illumination Methods 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model relates to a heat radiation device for LED lamps of an automobile, and belongs to the technical field of automobile-used illumination. The device comprises a lamp housing, a white light LED, a heat pipe, a heat conducting baseplate and a radiating plate; the heat conducting baseplate is arranged in the lamp housing; the white light LED is attached on the heat conducting baseplate; an evaporation segment of the heat pipe is fixedly connected with the heat conducting baseplate; and the heat pipe passes through the lamp housing and a condensation segment to be fixedly connected with the radiating plate. Superhigh heat-transfer capability of the heat pipe is utilized by the utility model, so that heat generated by the white light LED is transmitted to the radiating plate rapidly; the radiating plate is mounted outside the lamp housing, thereby ensuring enough radiating area as well as good ventilation; and therefore, the radiating plate is utilized to transmit heat into ambient air rapidly, the junction temperature of the white light LED is controlled efficiently, and the LED head lamps can be ensured to operate normally and steadily.
Description
Technical field
The utility model relates to a kind of heat abstractor of LED car headlamp, belongs to automobile-used lighting technical field.
Background technology
The car headlamp light source adopts white light LEDs to compare and adopts Halogen lamp LED and xenon lamp, has light source utilization rate height, long service life, and the exciter response time is short, and travel safety is good, and helps advantage such as vehicle appearance design.Under existing luminous efficiency, large power white light LED can only be converted into luminous energy with the fraction input power, and all the other most energy are converted into heat, effectively sheds if the heat that produces is untimely, junction temperature will raise, and causes that the LED performance descends even inefficacy.At present, the general employing of the heat abstractor of LED car headlamp reaches the purpose that LED is dispelled the heat in the lamp interior finned.But because the spatial constraints of lamp interior, the geomery of fin also has been subjected to very big restriction, and the air circulation of lamp interior is relatively poor, and the heat that makes white light LEDs produce is difficult in time shed.
Summary of the invention
The purpose of this utility model is to provide a kind of heat abstractor of LED car headlamp, and this heat-diffusing efficiency of heat abstractor height is effective.
The utility model is that the technical scheme that achieves the above object is: a kind of heat abstractor of LED car headlamp, comprise lamp housing, white light LEDs, heat pipe, heat-conducting substrate and fin, it is characterized in that: described heat-conducting substrate is arranged in the lamp housing, white light LEDs is attached on the heat-conducting substrate, the evaporator section of heat pipe is fixedlyed connected with heat-conducting substrate, and heat pipe passes its condensation segment of lamp housing and fixedlys connected with fin.
The utility model utilizes the heat-transfer capability of heat pipe superelevation, the heat that white light LEDs is produced is delivered on the fin rapidly, because fin is installed in the outside of lamp housing, enough area of dissipations had both been guaranteed, guaranteed good air circulation again, thereby utilize fin that heat is loose in surrounding air rapidly, effectively control the junction temperature of white light LEDs, make the LED headlamp normally stably to work.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is a kind of generalized section of the present utility model.
Wherein: 1-white light LEDs, 2-heat-conducting substrate, 3-sealing gasket, 4-heat pipe, 4-1-evaporator section, 4-2-condensation segment, 5-fin, 6-lamp housing.
The specific embodiment
As shown in Figure 1, the heat abstractor of LED car headlamp of the present utility model, comprise lamp housing 6, white light LEDs 1, heat pipe 4, heat-conducting substrate 2 and fin 5, heat-conducting substrate 2 is arranged in the lamp housing 6, and fin 5 is arranged on outside the lamp housing 6, white light LEDs 1 is attached on the heat-conducting substrate 2, this white light LEDs 1 preferably is attached to the middle part of heat-conducting substrate 2, and the peripheral dimension of white light LEDs 1 is less than or equal to the peripheral dimension of heat-conducting substrate 2, the evaporator section 4-1 of heat pipe 4 is fixedlyed connected with heat-conducting substrate 2, heat pipe 4 passes lamp housing 6, and the condensation segment 4-2 of heat pipe 4 is fixed on the substrate of fin 5, and the fin shape of the utility model fin is the straight rib shape of rectangle.See shown in Figure 1, the utility model heat pipe 4 can adopt one or more, and the evaporator section 4-1 of heat pipe 4 both sides and condensation segment 4-2 are welded on respectively in the substrate of heat-conducting substrate 2 and fin 5, this heat pipe 4 adopts the core heat pipe, heat pipe 4 is installed on the lamp housing 6 by sealing gasket 3, and the diameter of heat pipe 4 is at 4～6mm, and fin 5 is installed in the outside of lamp housing 6, white light LED1 is dispelled the heat with the heat pipe 4 condensation segment 4-2 that are welded on the fin 5 by fin 5
When the LED car headlamp is worked, heat-conducting substrate 2 contacts with white light LEDs 1 surface, the heat that white light LEDs 1 is produced imports among the evaporator section 4-1 of heat pipe 4, working medium is vaporized immediately, and enters among the condensation segment 4-2 of heat pipe 4, and the latent heat of vaporization of working substance steam is absorbed at condensation segment 4-2, and be transmitted on the fin 5, the fin of fin 5 by with the surrounding air heat convection, heat is distributed, get back to the evaporator section 4-1 of heat pipe 4 after the liquefaction of steam among the heat pipe 4 condensation segment 4-2.Go round and begin again, reach thermal balance at last, white light LEDs 1 junction temperature is stabilized in the normal range of operation, thereby assurance LED car headlamp is normally stably worked.
Claims (4)
1, a kind of heat abstractor of LED car headlamp, comprise lamp housing, white light LEDs, heat pipe, heat-conducting substrate and fin, it is characterized in that: described heat-conducting substrate is arranged in the lamp housing, white light LEDs is attached on the heat-conducting substrate, the evaporator section of heat pipe is fixedlyed connected with heat-conducting substrate, and heat pipe passes its condensation segment of lamp housing and fixedlys connected with fin.
2, the heat abstractor of LED car headlamp according to claim 1 is characterized in that: described white light LEDs is attached to the middle part of heat-conducting substrate, and the peripheral dimension of white light LEDs is less than or equal to the peripheral dimension of heat-conducting substrate.
3, the heat abstractor of LED car headlamp according to claim 1 is characterized in that: described heat pipe is for there being the core heat pipe, and heat pipe is installed on the lamp housing by sealing gasket, and the diameter of heat pipe is at 4～6mm.
4, the heat abstractor of LED car headlamp according to claim 1 is characterized in that: the fin shape of described fin is the straight rib shape of rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202146811U CN201335345Y (en) | 2008-12-26 | 2008-12-26 | Heat radiation device for LED lamps of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202146811U CN201335345Y (en) | 2008-12-26 | 2008-12-26 | Heat radiation device for LED lamps of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201335345Y true CN201335345Y (en) | 2009-10-28 |
Family
ID=41286999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202146811U Expired - Lifetime CN201335345Y (en) | 2008-12-26 | 2008-12-26 | Heat radiation device for LED lamps of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201335345Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338363A (en) * | 2011-09-19 | 2012-02-01 | 浙江工业大学 | Split-type radiator for integrated high-power light-emitting diode (LED) automobile lamp |
| CN102859275A (en) * | 2010-05-03 | 2013-01-02 | 奥斯兰姆施尔凡尼亚公司 | Thermosyphon light engine and luminaire including same |
| CN102944001A (en) * | 2012-11-08 | 2013-02-27 | 南京理工大学 | Heat radiating device of high-power LED (Light-emitting diode) car lamp |
| CN103267267A (en) * | 2013-06-19 | 2013-08-28 | 苏州信亚科技有限公司 | High-power LED (light-emitting diode) lamp with heat pipe |
| CN103836594A (en) * | 2013-12-31 | 2014-06-04 | 麦克奥迪实业集团有限公司 | Heat dissipation structure and device of LED module |
-
2008
- 2008-12-26 CN CNU2008202146811U patent/CN201335345Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102859275A (en) * | 2010-05-03 | 2013-01-02 | 奥斯兰姆施尔凡尼亚公司 | Thermosyphon light engine and luminaire including same |
| US9273861B2 (en) | 2010-05-03 | 2016-03-01 | Osram Sylvania Inc. | Thermosyphon light engine and luminaire including same |
| CN102338363A (en) * | 2011-09-19 | 2012-02-01 | 浙江工业大学 | Split-type radiator for integrated high-power light-emitting diode (LED) automobile lamp |
| CN102944001A (en) * | 2012-11-08 | 2013-02-27 | 南京理工大学 | Heat radiating device of high-power LED (Light-emitting diode) car lamp |
| CN102944001B (en) * | 2012-11-08 | 2014-06-04 | 南京理工大学 | Heat radiating device of high-power LED (Light-emitting diode) car lamp |
| CN103267267A (en) * | 2013-06-19 | 2013-08-28 | 苏州信亚科技有限公司 | High-power LED (light-emitting diode) lamp with heat pipe |
| CN103836594A (en) * | 2013-12-31 | 2014-06-04 | 麦克奥迪实业集团有限公司 | Heat dissipation structure and device of LED module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091028 |