CN204062941U - A kind of two heat abstractors of LED street lamp - Google Patents
A kind of two heat abstractors of LED street lamp Download PDFInfo
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- CN204062941U CN204062941U CN201420400185.0U CN201420400185U CN204062941U CN 204062941 U CN204062941 U CN 204062941U CN 201420400185 U CN201420400185 U CN 201420400185U CN 204062941 U CN204062941 U CN 204062941U
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- radiator
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- type heat
- synthesizing jet
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Abstract
The utility model discloses a kind of two heat abstractors of LED street lamp, comprise LED integrated chip, substrate, heat exchange elements, synthesizing jet-flow radiator and fin inserting type heat radiator, LED integrated chip is fixed on substrate, substrate is fixed on heat exchange elements, the end face center of heat exchange elements arranges fin inserting type heat radiator, the synthesizing jet-flow radiator that equal number is each side set of described fin inserting type heat radiator, and be arranged on the end face of heat exchange elements.The utility model adds the coefficient of heat transfer between air-spray and radiating fin, substantially increases heat dispersion.
Description
Technical field
The utility model relates to field of LED illumination, particularly a kind of two heat abstractors of LED street lamp.
Background technology
LED, as a kind of novel lighting source, has energy-conserving and environment-protective, the advantages such as long service life, is widely used in various public situation.But because LED uses power higher, LED light source is still faced with chip heat to be in use difficult to dissipate, the problem that chip temperature is higher, thus LED generation look is waftd, and have influence on the service life of LED light source.For powerful light fixture, increase heat sink area and cause again light fixture heavier, be unfavorable for the development of following light fixture.
A kind of active cooling of synthesizing jet-flow system technical scheme, it generally adopts can realize reciprocating barrier film, and barrier film connects a power source, is supplied to the motion of barrier film by power source, cause air-flow suck in the periodicity of opening part and launch, thus form jet.Because synthesizing jet-flow heat dissipation technology has heat radiation efficiently, the advantages such as air capacity demand is few, and size is little, noiselessness, and durability is high, and the life-span is permanent, are therefore extremely suitable for being applied on LED illumination and other electronic heating element.But current synthesizing jet-flow heat abstractor is electricity consumption device, realizing jet as adopted piezoelectric patches to encourage, is namely all initiatively consume electric energy.
Utility model content
In order to overcome the shortcoming of prior art existence with not enough, the utility model provides a kind of two heat abstractors of LED street lamp.
The utility model adopts following technical scheme:
A kind of two heat abstractors of LED street lamp, comprise LED integrated chip, substrate, heat exchange elements, synthesizing jet-flow radiator and fin inserting type heat radiator, described LED integrated chip is fixed on substrate, described substrate is fixed on heat exchange elements, the end face center of described heat exchange elements arranges fin inserting type heat radiator, the synthesizing jet-flow radiator that equal number is each side set of described fin inserting type heat radiator, and be arranged on the end face of heat exchange elements.
Described fin inserting type heat radiator is made up of multiple radiating fin.
Described synthesizing jet-flow radiator comprises the cavity that a cross section is rectangle, upper, the left and right inwall of described cavity is provided with liquid-sucking core, described cavity top is provided with the passage of built-in piston, and described cavity bottom is provided with elastic film, and described elastic film is provided with liquid refrigerant.
Described fin inserting type heat radiator two synthesizing jet-flow radiators are each side set, and symmetrical to place.
Described fin inserting type heat radiator a synthesizing jet-flow radiator is each side set, described synthesizing jet-flow radiator lays respectively at the centre position, both sides of fin inserting type heat radiator.
The beneficial effects of the utility model:
(1) the utility model is reasonable in design, utilizes heat exchange elements heat can be passed to fin inserting type heat radiator and synthesizing jet-flow radiator, greatly improves the heat dispersion of LED and makes LED chip junction temperature keep consistency as far as possible;
(2) heat abstractor of this LED is compared with traditional inserted sheet heat abstractor, adds the coefficient of heat transfer between air-spray and radiating fin, substantially increases heat dispersion; Compared with conventional synthesis fluidic device, not consuming electric power, meets the environmental requirement of energy-saving and emission-reduction, reduces operating cost.
Accompanying drawing explanation
Fig. 1 is the front view of two heat abstractors of a kind of LED street lamp of the utility model;
Fig. 2 is the perspective view of the utility model embodiment 1;
Fig. 3 is the perspective view of the utility model embodiment 2;
Fig. 4 is the schematic diagram of the synthesizing jet-flow radiator in Fig. 1.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of two heat abstractors of LED street lamp, comprise multiple LED integrated chip 1, substrate 2, heat exchange elements 3, fin inserting type heat radiator 4 and synthesizing jet-flow radiator 5, described LED integrated chip 1 is fixing on a substrate 2, described substrate 2 is fixed on heat exchange elements 3, the end face center of described heat exchange elements 3 arranges fin inserting type heat radiator 4, the synthesizing jet-flow radiator 5 each side arranging equal number of described fin inserting type heat radiator 4, described synthesizing jet-flow radiator is arranged on the end face of heat exchange elements.
Described fin inserting type heat radiator 4 is made up of multiple radiating fin, and multiple radiating fin can arranged in parallel or arrangement or the arrangement in sun fancy in radian.
As shown in Figure 4, described synthesizing jet-flow radiator 5 comprises the cavity 501 that a cross section is rectangle, upper, the left and right inwall of described cavity is provided with liquid-sucking core 503, described cavity top is provided with the passage 505 of built-in piston 504, described cavity bottom is provided with elastic film 502, described elastic film distance heat exchange elements upper wall has certain distance, its distance is according to how many decisions of the size of synthesizing jet-flow radiator of reality, the elasticity of elastic film and liquid refrigerant, the present embodiment distance is within 0.5mm-5mm, and described elastic film is provided with liquid refrigerant 506.
Fin inserting type heat radiator 4 is pointed in access portal direction on described synthesizing jet-flow radiator, and fin inserting type heat radiator heat radiation is dispelled the heat with jet and combined, and substantially increases radiating efficiency.
The synthesizing jet-flow radiator 5 of the present embodiment has 4, one group between two, is separately positioned on the left and right sides of fin inserting type heat radiator, and symmetrical placement, can form circulative convection, radiating effect is better.
The course of work of the present utility model:
The heat produced when LED integrated chip 1 is luminous passes to heat exchange elements 3 by substrate 2, heat exchange elements 3 can pass to heat rapidly elastic film 502 place in fin inserting type heat radiator and synthesizing jet-flow radiator 5, fin-inserted radiator contacts the object reaching passive heat radiation with air on the one hand, on the other hand, the liquid refrigerant 506 at elastic film 502 place is undergoes rapid expansion owing to being heated, gas pressure intensity in chamber is increased, promote piston 504 to move upward, at passage 505 place ejection air, because the quality of liquid refrigerant reduces, elastic film 502 can produce the isolation in physical distance with the upper wall of heat exchange elements 3, the liquid refrigerant 506 arriving condensation end can form liquid due to the reduction of temperature, along with liquid-sucking core 503 is back to interior elastic film place, now in synthesizing jet-flow radiator 5, pressure reduces, piston 504 moves downward, air is sucked at passage 505 place, along with liquid refrigerant 506 increasing gradually at elastic film 502 place, elastic film 502 convex is out of shape, elastic film 502 contacts with heat exchange elements 3 upper wall, liquid refrigerant 506 is heated undergoes rapid expansion, promote piston 504 to move upward, at passage 505 place ejection air, loop cycle like this, jet is formed at passage 505 place, heat on fin inserting type heat radiator 4 can be taken away rapidly by the jet formed at passage 505 place.
Embodiment 2
As shown in Figure 3, in the present embodiment, synthesizing jet-flow radiator has 2, is symmetricly set on the centre position of the left and right sides of fin inserting type heat radiator, fin inserting type heat radiator each side.Other features are identical with embodiment 1.
Above-described embodiment is the utility model preferably embodiment; but embodiment of the present utility model is not limited by the examples; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (5)
1. two heat abstractors of a LED street lamp, it is characterized in that, comprise LED integrated chip, substrate, heat exchange elements, synthesizing jet-flow radiator and fin inserting type heat radiator, described LED integrated chip is fixed on substrate, described substrate is fixed on heat exchange elements, the described end face center at heat exchange elements arranges fin inserting type heat radiator, the synthesizing jet-flow radiator each side arranging equal number of described fin inserting type heat radiator, and is arranged on the end face of heat exchange elements.
2. two heat abstractors of a kind of LED street lamp according to claim 1, is characterized in that, described fin inserting type heat radiator is made up of multiple radiating fin.
3. two heat abstractors of a kind of LED street lamp according to claim 1, it is characterized in that, described synthesizing jet-flow radiator comprises the cavity that a cross section is rectangle, upper, the left and right inwall of described cavity is provided with liquid-sucking core, described cavity top is provided with the passage of built-in piston, described cavity bottom is provided with elastic film, and described elastic film is provided with liquid refrigerant.
4. two heat abstractors of a kind of LED street lamp according to claim 1, is characterized in that, described fin inserting type heat radiator two synthesizing jet-flow radiators are each side set, and symmetrical to place.
5. two heat abstractors of a kind of LED street lamp according to claim 1, is characterized in that, described fin inserting type heat radiator a synthesizing jet-flow radiator is each side set, described synthesizing jet-flow radiator lays respectively at the centre position, both sides of fin inserting type heat radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420400185.0U CN204062941U (en) | 2014-07-18 | 2014-07-18 | A kind of two heat abstractors of LED street lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420400185.0U CN204062941U (en) | 2014-07-18 | 2014-07-18 | A kind of two heat abstractors of LED street lamp |
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| Publication Number | Publication Date |
|---|---|
| CN204062941U true CN204062941U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420400185.0U Expired - Fee Related CN204062941U (en) | 2014-07-18 | 2014-07-18 | A kind of two heat abstractors of LED street lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132318A (en) * | 2014-07-18 | 2014-11-05 | 华南理工大学 | Double-heat-dissipation device of LED street lamp |
-
2014
- 2014-07-18 CN CN201420400185.0U patent/CN204062941U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132318A (en) * | 2014-07-18 | 2014-11-05 | 华南理工大学 | Double-heat-dissipation device of LED street 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 |
Granted publication date: 20141231 Termination date: 20170718 |
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| CF01 | Termination of patent right due to non-payment of annual fee |