CN101788121A - Light-emitting diode (LED) car lamp device - Google Patents
Light-emitting diode (LED) car lamp device Download PDFInfo
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- CN101788121A CN101788121A CN200910005282A CN200910005282A CN101788121A CN 101788121 A CN101788121 A CN 101788121A CN 200910005282 A CN200910005282 A CN 200910005282A CN 200910005282 A CN200910005282 A CN 200910005282A CN 101788121 A CN101788121 A CN 101788121A
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- emitting diode
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- car lamp
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Abstract
The invention relates to a light-emitting diode (LED) car lamp device which comprises a shell, a light-transmitting lampshade and an LED module. The shell and the light-transmitting lampshade are combined to define an internal space, the LED module is arranged in the internal space, and the shell comprises an inner layer and an outer layer which is combined with and encircled around the inner layer, wherein the outer layer has a heat conductivity coefficient lower than that of the inner layer for preventing temperature outside the shell from being conducted into the shell, and thereby increasing the temperature in the shell or influencing the operation of the LED module.
Description
Technical field
The present invention relates to a kind of car lamp device, particularly relate to a kind of light-emitting diode (LED) car lamp device.
Background technology
Consult Fig. 1, a kind of light-emitting diode (LED) car lamp device 1 in the past for Japanese Koito company, it comprises transparent lamp shade 12 that a shell 11, is incorporated into shell 11, is arranged on a pedestal 13 and most the light emitting diodes 14 that are arranged on pedestal 13 in the shell 11, and pedestal 13 is formed with most radiating fins 131.
The position at transparent lamp shade 12 places is the place aheads of whole car lamp device 1, when car lamp device 1 is installed in car body 100, the heat energy (for example coming from light emitting diode 14) that car lamp device 1 inside is produced is to carry out heat exchange by cold air that is blowed to transparent lamp shade 12 by the external world, the place ahead (shown in the imaginary line arrow among the figure) and transparent lamp shade 12, whereby the heat energy in the car lamp device 1 is taken away, and reached the effect of heat radiation.
But, when car body 100 starting or the process of advancing in, because the relation of engine running, can allow and be in higher temperature in the car body 100, when the temperature of car body 100 is higher than temperature in the car lamp device 1, the high temperature of car body 100 just can see through shell 11 and import in the car lamp device 1 and improve temperature in the car lamp device 1, and then influences the usefulness of car lamp device 1.
This shows that above-mentioned existing light-emitting diode (LED) car lamp device obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of light-emitting diode (LED) car lamp device of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The objective of the invention is to, overcome the problem that the high temperature of existing car body impacts car lamp device easily, the objective of the invention is to be to provide a kind of light-emitting diode (LED) car lamp device of new structure, technical problem to be solved is to make it can reduce even avoid the high temperature of car body to enter car lamp device and influence its usefulness.
Another object of the present invention is to, a kind of light-emitting diode (LED) car lamp device of new structure is provided, technical problem to be solved is to improve thermal efficiency.
The present invention is inside and outside two-layer by the housing of car lamp device is arranged to, the outer hot gas that can block outside the housing by selecting for use the lower material of thermal conductivity factor to make enters in the housing, and internal layer helps heat radiation in the housing by selecting the higher material of thermal conductivity factor for use.
The object of the invention to solve the technical problems realizes by the following technical solutions.The light-emitting diode (LED) car lamp device that proposes according to the present invention comprises that a housing, is incorporated into this housing and is arranged in this inner space with transparent lamp shade and that this housing defines an inner space and comprises the illuminating module of at least one light emitting diode; Wherein this housing comprises that an internal layer and combines with this internal layer and around the skin of this internal layer periphery, this outer field thermal conductivity factor is lower than the thermal conductivity factor of this internal layer, whereby, by the lower skin of thermal conductivity factor, just can effectively block the outer temperature conduction of this housing and enter in this housing.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Preferably, this outer field thermal conductivity factor below 5W/mK, more preferably, below 2W/mK.
Preferably, the thermal conductivity factor of this internal layer more than 50W/mK, more preferably, at 100W/mK.
Preferably, this internal layer and this skin define a clearance space separately, and this internal layer is provided with first ventilating opening of at least one this clearance space of connection.
Preferably, this skin is provided with second ventilating opening of at least one this clearance space of connection.
Preferably, define the front side that this transparent lamp shade is incorporated into this housing, the front side of this housing is formed with at least one second ventilating opening that is communicated with this clearance space.
Preferably, this housing also comprises a catch unit, this catch unit comprises one first catch and one second catch, this first catch is connected with this internal layer and this skin respectively with this second catch and is positioned at this clearance space and is staggered the setting and defines this second ventilating opening, makes this second ventilating opening be circuitous shape whereby and can avoid extraneous mosquito or dirt to enter in the clearance space.
Preferably, this housing is provided with most second ventilating openings, and described second ventilating opening of part is positioned at this housing front side, and described second ventilating opening of part is positioned at this housing rear side, and cool ambient air can be circulated through this clearance space, promotes heat dissipation.
Preferably, this light-emitting diode (LED) car lamp device also comprises one and is arranged at this internal layer and is arranged in the fan of this inner space.
By technique scheme, light-emitting diode (LED) car lamp device of the present invention has following advantage and beneficial effect at least:
By housing being arranged to have internal layer and outer field structure, and skin is the material than low thermal conductivity, can block the outer temperature conduction of this housing whereby enters in this housing, avoid the usefulness of outer this light-emitting diode (LED) car lamp device of temperatures involved of housing, this internal layer then is the higher material of thermal conductivity factor, can conduct the heat energy that this illuminating module produces, and shed, promote the heat dissipation of this light-emitting diode (LED) car lamp device by the heat exchange of this transparent lamp shade and cool ambient air.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the cross sectional side view of a kind of light-emitting diode (LED) car lamp device in the past of Japanese Koito company.
Fig. 2 is the cross sectional side view of the present invention's first preferred embodiment.
Fig. 3 is the cross sectional side view of the present invention's second preferred embodiment.
Fig. 4 is the cross sectional side view of the present invention's the 3rd preferred embodiment.
Fig. 5 is the cross sectional side view of the present invention's the 4th preferred embodiment.
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its specific embodiment of light-emitting diode (LED) car lamp device, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Consult Fig. 2, first preferred embodiment of light-emitting diode (LED) car lamp device 2 of the present invention is arranged in the car body 200, and this light-emitting diode (LED) car lamp device 2 comprises a housing 21, a transparent lamp shade 22 and an illuminating module 23.
The preferable above plastic material of thermal conductivity factor 50W/mK that can be of the material of internal layer 211, more preferably, can be the plastic material of 100W/mK, the preferable following plastic material of thermal conductivity factor 5W/mK that can be of outer 212 material, more preferably, can be the following plastic material of thermal conductivity factor 2W/mK.
Except said elements, the light-emitting diode (LED) car lamp device 2 of present embodiment also comprises most filter elements 24, described filter element 24 is second ventilating opening, 215 places that are separately positioned on skin 212, can prevent that the outer dusts of light-emitting diode (LED) car lamp device 2 from entering and be attached to described radiating fin 233, influences the radiating effect of radiating fin 233.
When light-emitting diode (LED) car lamp device 2 is installed in car body 200; though can improve temperature because of the relation of engine running in the car body 200; but skin 212 by housing 21 low thermal conductivities; the high temperature conduction that can block car body 200 enters in the housing 21; avoid car body 200 temperatures involved light-emitting diode (LED) car lamp device 2 running or light-emitting diode (LED) car lamp device 2 internal temperatures are raise; in addition; the high temperature that illuminating module 23 is produced can be conducted to housing 21 front sides 216 (housing 21 front sides 216 are owing to be easier to carry out heat exchange with cool ambient air because internal layer 211 thermal conductivity factors are higher; so can be in the state of lower temperature usually); carry out heat exchange by cool ambient air and transparent lamp shade 22; therefore also can promote radiating effect; moreover; the setting of clearance space 213 and described first ventilating opening 214; then help to make the hot gas of inner space 210 more evenly to circulate; be unlikely to make the non-uniform temperature everywhere in the housing 21, and also can carry out heat exchange with the external world by second ventilating opening 215.
Consult Fig. 3, second preferred embodiment for light-emitting diode (LED) car lamp device 2 ' of the present invention, its structure is identical with first preferred embodiment haply with element, only, in second preferred embodiment, described second ventilating opening 215 ' is formed in the front side 216 of housing 21, and what deserves to be mentioned is, in second preferred embodiment, housing 21 also comprises two catch unit 26, described second ventilating opening 215 ' is to be defined by described catch unit 26 respectively, 26 of each catch unit are in clearance space 213 and comprise one first catch 261 and one second catch 262, first catch 261 and second catch 262 are formed by connecting with internal layer 211 and outer 212 respectively and are crisscross arranged thereby define second ventilating opening 215 ', and because the wind path that first catch 261 and being crisscross arranged of second catch 262 make second ventilating opening 215 ' be communicated with clearance space 213 is to be circuitous shape.
Because described second ventilating opening 215 ' is that the position is in housing 21 front sides 216, make cool ambient air to be blown in the clearance space 213 and by another second ventilating opening 215 ' via described second ventilating opening 215 ' blows out backward, just can more effectively reach radiating effect, and because the wind path that second ventilating opening 215 ' is communicated with clearance space 213 is into circuitous shape, this also can prevent that mosquito or other pollutants from directly being entered in the clearance space 213 by second ventilating opening 215 '.
Described filter element 24 is separately positioned on described first ventilating opening 214, in order to prevent entering inner space 210 by the dust that the outside air that second ventilating opening 215 ' enters is carried secretly, and make described first ventilating opening 214 maintain ventilation effect equally, can shed to clearance space 213 for the hot gas of inner space 210.
Consult Fig. 4, be light-emitting diode (LED) car lamp device 2 of the present invention " the 3rd preferred embodiment; the places different with second preferred embodiment are; in the 3rd preferred embodiment; outer 212 rear side 217 places that are positioned at housing 21 also are provided with second ventilating opening 215 ", whereby, cool ambient air just can be blown in the clearance space 213 via second ventilating opening 215 ' of housing 21 front sides 216 backward, and second ventilating opening 215 by housing 21 rear sides 217 " blow out, can reach radiating effect more quickly and effectively.
Consult Fig. 5, be light-emitting diode (LED) car lamp device 2 ' of the present invention ' ' the 4th preferred embodiment, the places different with the 3rd preferred embodiment are this light-emitting diode (LED) car lamp device 2 ' ' ' also comprise a fan 25, this fan 25 is arranged on internal layer 211 and is arranged in inner space 210, in order to increase the thermal convection current of inner space 210, impel the hot gas of inner space 210 to be easier to carry out heat exchange, hot gas in the inner space 210 can more evenly be circulated and be unlikely to make non-uniform temperature everywhere in the inner space 210 with outside air.
In sum, the present invention is arranged to housing 21 structure of internal layer 211 and outer 212, and make outer 212 the coefficient of heat conduction lower and coefficient of heat conduction internal layer 211 is higher, outer 212 coefficients of heat conduction are low can avoid the hot gas in the car body 200 to enter light-emitting diode (LED) car lamp device 2,2 '; 2 " 2 ' ' ' cause light-emitting diode (LED) car lamp device 2,2 '; 2 " 2 ' ' ' temperature inside rises, thereby avoid the temperatures involved light-emitting diode (LED) car lamp device 2 of car body 200,2 '; 2 " 2 ' ' usefulness ', and the coefficient of heat conduction of internal layer 211 is higher and help to make the hot gas of inner space 210 accumulations to be easier to shed, to improve light-emitting diode (LED) car lamp device 2,2 '; 2 " 2 ' ' heat dissipation '.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (12)
1. light-emitting diode (LED) car lamp device comprises that a housing, is incorporated into this housing and is arranged in this inner space with transparent lamp shade and that this housing defines an inner space and comprises the illuminating module of at least one light emitting diode; It is characterized in that:
This housing comprises that an internal layer and combines with this internal layer and around the skin of this internal layer periphery, this outer field thermal conductivity factor is lower than the thermal conductivity factor of this internal layer and enters in this housing in order to block the outer temperature conduction of this housing.
2. light-emitting diode (LED) car lamp device as claimed in claim 1 is characterized in that: this illuminating module also comprises a pedestal, and this pedestal is formed with most radiating fins, and this pedestal is arranged at this internal layer, and this light emitting diode is arranged on this pedestal.
3. light-emitting diode (LED) car lamp device as claimed in claim 1 is characterized in that: this internal layer and this skin define a clearance space separately, and this internal layer is provided with first ventilating opening of at least one this clearance space of connection.
4. light-emitting diode (LED) car lamp device as claimed in claim 3 is characterized in that: this skin is provided with second ventilating opening of at least one this clearance space of connection.
5. light-emitting diode (LED) car lamp device as claimed in claim 3 is characterized in that: define the front side that this transparent lamp shade is incorporated into this housing, the front side of this housing is formed with at least one second ventilating opening that is communicated with this clearance space.
6. light-emitting diode (LED) car lamp device as claimed in claim 5, it is characterized in that: this housing also comprises a catch unit, this catch unit comprises one first catch and one second catch, and this first catch is connected with this internal layer and this skin respectively with this second catch and is positioned at this clearance space and is staggered the setting and defines this second ventilating opening.
7. light-emitting diode (LED) car lamp device as claimed in claim 5 is characterized in that: this housing is provided with most second ventilating openings, and described second ventilating opening of part is positioned at this housing front side, and described second ventilating opening of part is positioned at this housing rear side.
8. light-emitting diode (LED) car lamp device as claimed in claim 4 is characterized in that: this light-emitting diode (LED) car lamp device also comprises a filter element that is arranged at this second ventilating opening.
9. as claim 5 to 7 each described light-emitting diode (LED) car lamp device wherein, it is characterized in that: this light-emitting diode (LED) car lamp device also comprises a filter element that is arranged at this first ventilating opening.
10. light-emitting diode (LED) car lamp device as claimed in claim 1 is characterized in that: this light-emitting diode (LED) car lamp device also comprises one and is arranged at this internal layer and is arranged in the fan of this inner space.
11. light-emitting diode (LED) car lamp device as claimed in claim 1 is characterized in that: the thermal conductivity factor of this internal layer is more than 50W/mK.
12. light-emitting diode (LED) car lamp device as claimed in claim 1 is characterized in that: this outer field thermal conductivity factor is below 5W/mK.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910005282A CN101788121A (en) | 2009-01-23 | 2009-01-23 | Light-emitting diode (LED) car lamp device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910005282A CN101788121A (en) | 2009-01-23 | 2009-01-23 | Light-emitting diode (LED) car lamp device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101788121A true CN101788121A (en) | 2010-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910005282A Pending CN101788121A (en) | 2009-01-23 | 2009-01-23 | Light-emitting diode (LED) car lamp device |
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| Country | Link |
|---|---|
| CN (1) | CN101788121A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032855A (en) * | 2011-09-30 | 2013-04-10 | 隆达电子股份有限公司 | Light source cooling device and cooling method thereof |
| CN106133436A (en) * | 2014-03-24 | 2016-11-16 | 日东电工株式会社 | Vehicle lamp |
| CN108591957A (en) * | 2018-05-10 | 2018-09-28 | 曹伟 | A kind of anti-high optically focused car light that hazes of automobile |
| CN110119058A (en) * | 2018-02-07 | 2019-08-13 | 深圳光峰科技股份有限公司 | Wavelength converter |
-
2009
- 2009-01-23 CN CN200910005282A patent/CN101788121A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032855A (en) * | 2011-09-30 | 2013-04-10 | 隆达电子股份有限公司 | Light source cooling device and cooling method thereof |
| CN103032855B (en) * | 2011-09-30 | 2015-05-20 | 隆达电子股份有限公司 | Light source cooling device and cooling method thereof |
| CN106133436A (en) * | 2014-03-24 | 2016-11-16 | 日东电工株式会社 | Vehicle lamp |
| CN106133436B (en) * | 2014-03-24 | 2019-08-27 | 日东电工株式会社 | Vehicle lamp |
| CN110119058A (en) * | 2018-02-07 | 2019-08-13 | 深圳光峰科技股份有限公司 | Wavelength converter |
| CN108591957A (en) * | 2018-05-10 | 2018-09-28 | 曹伟 | A kind of anti-high optically focused car light that hazes of automobile |
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| PB01 | Publication | ||
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Open date: 20100728 |