CN204141433U - A kind of LED automobile lamp - Google Patents
A kind of LED automobile lamp Download PDFInfo
- Publication number
- CN204141433U CN204141433U CN201420323804.0U CN201420323804U CN204141433U CN 204141433 U CN204141433 U CN 204141433U CN 201420323804 U CN201420323804 U CN 201420323804U CN 204141433 U CN204141433 U CN 204141433U
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- substrate
- heat transmission
- fin
- heat
- led
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Abstract
The utility model discloses a kind of LED automobile lamp, comprise light cover, the LED component be located in light cover, described LED component comprises LED chip and substrate, and described LED chip is welded on the one side of substrate, the another side of substrate is provided with some heat transmission fins, and heat transmission fin is positioned at outside light cover; Described heat transmission fin with the center of substrate for initial point is outwards with arrange themselves, fin centered by the heat transmission fin being positioned at initial point place, central fins extends straight down, being positioned at central fins outer field is curved wing, described curved wing relative centre fin is bent outwardly extension, forms the heat dissipation channel of connection between described heat transmission fin.By the technical solution of the utility model, the heat that LED chip produces directly can be delivered to car light outside by substrate, be delivered in the air of car light convection outside by curved wing, simple and compact for structure, heat exchange efficiency is high.
Description
Technical field
The utility model relates to lighting field, particularly relates to a kind of LED automobile lamp.
Background technology
The advantage such as LED is little with its volume, the life-span is long, energy consumption is low, vibration resistance, start-up time are fast has become the first-selection of young mobile light source technology.LED is a kind of injection lelctroluminescence device, and under the effect of extra electric field, part energy is converted into luminous energy by the radiation recombination in electronics and hole, and remaining Conversion of Energy is heat energy by the lattice vibration that radiationless compound produces.
Conventional light source to be replaced in car headlamp for LED, high-power, high efficiency and operating temperature must be possessed the high reliability of-40 DEG C ~ 125 DEG C.Realizing in these functional requirements, wherein a more formidable part is the problem of heat radiation, for single led, if heat concentrates in small-sized chip and can not effectively shed, chip temperature then can be caused to raise, cause the non-uniform Distribution of thermal stress, make chip failure.Therefore the temperature rise controlling LED lamp by reasonable heat dissipation technology is LED in automobile key issue in the urgent need to address in headlamp application.
Automotive LED headlamp due to space constraint, the vibration in addition in driving process, very high to the requirement of stability, each of which increases the heat radiation difficulty of LED car lamp.Add heat-conducting plate or heat pipe in addition in current most heat sink conception car light, add car light production complexity.
Therefore, prior art need to improve.
Utility model content
The purpose of this utility model is to propose a kind of LED automobile lamp, and the heat that LED chip produces directly can be delivered to car light outside by substrate, be delivered in the air of car light convection outside by curved wing, simple and compact for structure, heat exchange efficiency is high.
For reaching this object, the utility model by the following technical solutions:
A kind of LED automobile lamp, comprise light cover, the LED component be located in light cover, described LED component comprises LED chip and the substrate for powering for LED chip, and described LED chip is welded on the one side of substrate, the another side of substrate is provided with some heat transmission fins, and heat transmission fin is positioned at outside light cover; Described heat transmission fin with the center of substrate for initial point is outwards with arrange themselves, fin centered by the heat transmission fin being positioned at initial point place, central fins extends straight down, being positioned at central fins outer field is curved wing, described curved wing relative centre fin is bent outwardly extension, forms the heat dissipation channel of connection between described heat transmission fin.
Wherein, described substrate and heat transmission fin entirety are cut and are formed.
Wherein, the tangent line of axis of described curved wing and the angle of substrate with the distance of curved wing root position and substrate center increase and reduce gradually, the axis tangent line of curved wing and the angular range of substrate are 45 ~ 90 °.
Wherein, the end of described heat transmission fin is in the same plane.
Wherein, the end of described heat transmission fin is connected with a heat sink.
Wherein, described light cover periphery extend horizontally away a junction, and described connecting portion is provided with some screws, and described substrate is provided with screw, the screw of substrate is corresponding with the screw of connecting portion, and screw realizes light cover through the screw of connecting portion with the screw of substrate and is connected with base plate screw.
Implement the utility model embodiment, there is following beneficial effect:
The utility model embodiment by processing heat transmission fin on the another side of substrate, greatly add heat exchange area, expand heat dissipation channel simultaneously, effectively improve the heat transfer rate on unit heat exchange area, therefore can better the heat of substrate be delivered to outside light cover by heat transmission fin.Further, heat transmission fin is layered arrangement, and skin is set to curved wing further increases heat transfer extended surface, effectively enhances heat dispersion.The heat that LED chip produces directly is delivered to car light outside by substrate, and be delivered in the air of car light convection outside by curved wing, simple and compact equipment structure, heat exchange efficiency is high, stable performance.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing described below is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of LED automobile lamp of the utility model first embodiment.
Detailed description of the invention
Carry out clear, complete description below in conjunction with accompanying drawing of the present utility model to the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of the utility model protection.
Composition graphs 1 is described the first embodiment of the present utility model.
The LED automobile lamp of the present embodiment, comprises light cover 1, the LED component be located in light cover 1, and described LED component specifically comprises some LED chip 2 and the substrate 3 for powering for each LED chip 2.Described LED chip 2 is welded on the one side of substrate 3, and the another side of substrate 3 is provided with some heat transmission fins 4, and heat transmission fin 4 is positioned at outside light cover 1.Described heat transmission fin 4 centered by substrate 3 central point outwards radially, concrete, described heat transmission fin 4 with the center of substrate 3 for initial point is outwards with arrange themselves, fin centered by the heat transmission fin 4 being positioned at initial point place, central fins extends straight down, being positioned at central fins outer field is curved wing, and described curved wing relative centre fin outwards radiates extension, forms the heat dissipation channel of connection between described heat transmission fin 4.
Preferably, in the present embodiment, substrate 3 cuts with heat transmission fin 4 entirety and forms, and therefore there is not thermal contact resistance, heat transfer efficiency is high.
Preferably, central fins in the present embodiment is perpendicular to substrate 3, outer field curved wing bends along its root and substrate 3 center line connecting direction and towards the direction away from substrate 3 center and extends, and the tangent line of the axis of described curved wing and the angle of substrate 3 with the distance at curved wing root position and substrate 3 center increase and reduce gradually, the axis tangent line of curved wing and the angular range of substrate 3 are 45 ~ 90, compare vertical fin, curved wing is set and effectively can expands heat transfer area, improve heat dispersion.
Further, LED chip 2 and substrate 3 do not establish a side of heat transmission fin 4 directly to weld, the shape of substrate 3 matches with light cover 1 opening, the periphery of described light cover 1 opening extend horizontally away a junction, described connecting portion is provided with some screws, described substrate 3 is provided with screw, and the screw of substrate 3 is corresponding with the screw of connecting portion, and screw realizes light cover 1 through the screw of connecting portion with the screw of substrate 3 and is connected with substrate 3 screw.Therefore the heat that LED chip 2 produces directly is delivered to car light outside by substrate 3, is delivered to the heat exchange of car light outside air convection, is distributed by heat by heat transmission fin 4.
Further, the end of heat transmission fin 4 described in the present embodiment is all in the same plane, therefore also can connect with heat sink at the end of described heat transmission fin 4, to improve heat dispersion further as required.
Pass through above-described embodiment, by processing heat transmission fin 4 on the another side of substrate 3, very big adding heat exchange area, expanding heat dissipation channel simultaneously, effectively improve the heat transfer rate on unit heat exchange area, therefore can better the heat of substrate 3 be delivered to outside light cover 1 by heat transmission fin 4.Further, heat transmission fin 4 is in layered arrangement, and skin is set to curved wing further increases heat transfer extended surface, effectively enhances heat dispersion.The heat that LED chip produces directly is delivered to car light outside by substrate 3, and be delivered in the air of car light convection outside by curved wing, simple and compact equipment structure, heat exchange efficiency is high, stable performance.
Above disclosedly be only the utility model preferred embodiment, certainly the right of the utility model can not be limited with this, therefore, all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., still belong to the scope that the utility model is contained.
Claims (4)
1. a LED automobile lamp, comprise light cover (1), the LED component be located in light cover (1), it is characterized in that, described LED component comprises LED chip (2) and the substrate (3) for powering for LED chip (2), described LED chip (2) is welded on the one side of substrate (3), the another side of substrate (3) is provided with some heat transmission fins (4), and heat transmission fin (4) is positioned at light cover (1) outward; Described heat transmission fin (4) is that initial point is outwards with arrange themselves with the center of substrate (3), fin centered by the heat transmission fin (4) being positioned at initial point place, central fins extends straight down, being positioned at central fins outer field is curved wing, described curved wing relative centre fin is bent outwardly extension, forms the heat dissipation channel of connection between described heat transmission fin (4);
The end of described heat transmission fin (4) is in the same plane;
The end of described heat transmission fin (4) is connected with a heat sink.
2. LED automobile lamp according to claim 1, is characterized in that, described substrate (3) cuts with heat transmission fin (4) entirety and forms.
3. LED automobile lamp according to claim 1, it is characterized in that, the tangent line of the axis of described curved wing and the angle of substrate (3) with the distance at curved wing root position and substrate (3) center increase and reduce gradually, the angular range of the axis tangent line of curved wing and substrate (3) is 45 ~ 90 °.
4. LED automobile lamp according to claim 1, it is characterized in that, described light cover (1) periphery extend horizontally away a junction, described connecting portion is provided with some screws, described substrate (3) is provided with screw, the screw of substrate (3) is corresponding with the screw of connecting portion, and screw realizes light cover (1) through the screw of connecting portion with the screw of substrate (3) and is connected with substrate (3) screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323804.0U CN204141433U (en) | 2014-06-17 | 2014-06-17 | A kind of LED automobile lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323804.0U CN204141433U (en) | 2014-06-17 | 2014-06-17 | A kind of LED automobile lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204141433U true CN204141433U (en) | 2015-02-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420323804.0U Expired - Fee Related CN204141433U (en) | 2014-06-17 | 2014-06-17 | A kind of LED automobile lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204141433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089229A (en) * | 2014-06-17 | 2014-10-08 | 昆山天重星光电科技有限公司 | LED automobile lamp |
-
2014
- 2014-06-17 CN CN201420323804.0U patent/CN204141433U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089229A (en) * | 2014-06-17 | 2014-10-08 | 昆山天重星光电科技有限公司 | LED automobile lamp |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20160617 |