CN104132318A - Double-heat-dissipation device of LED street lamp - Google Patents
Double-heat-dissipation device of LED street lamp Download PDFInfo
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- CN104132318A CN104132318A CN201410344906.5A CN201410344906A CN104132318A CN 104132318 A CN104132318 A CN 104132318A CN 201410344906 A CN201410344906 A CN 201410344906A CN 104132318 A CN104132318 A CN 104132318A
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Abstract
The invention discloses a double-heat-dissipation device of an LED street lamp. The double-heat-dissipation device comprises LED integrated chips, a substrate, a heat exchange element, synthetic jet radiators and an insert radiator. The LED integrated chips are fixed onto the substrate, the substrate is fixed onto the heat exchange element, the insert radiator is arranged at the center of the top surface of the heat exchange element, the left side and the right side of the insert radiator are respectively provided with the same number of the synthetic jet radiators, and the synthetic jet radiators are installed on the top surface of the heat exchange element. The double-heat-dissipation device of the LED street lamp increases the heat exchange coefficient between air jets and cooling fins and greatly improves the heat dissipation performance.
Description
Technical field
The present invention relates to LED lighting field, particularly a kind of two heat abstractors of LED street lamp.
Background technology
LED lamp, as a kind of novel lighting source, has energy-conserving and environment-protective, and the advantages such as long service life are 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, wafts thereby make LED produce look, and has 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.
Synthesizing jet-flow be a kind of active cooling technical scheme, its general employing can realize reciprocating barrier film, and barrier film connects a power source, offers the motion of barrier film by power source, cause that air-flow sucks and transmitting in the periodicity of opening part, thereby form jet.Due to synthesizing jet-flow heat dissipation technology, to have heat radiation efficient, and air capacity demand is few, and size is little, noiselessness, and the advantage such as durability is high, and the life-span is permanent, is therefore extremely suitable for being applied on LED illumination and other electronic heating elements.But current synthesizing jet-flow heat abstractor is electricity consumption device, as adopted piezoelectric patches encourage and realize jet, be all initiatively to consume electric energy.
Summary of the invention
In order to overcome the shortcoming and deficiency of prior art existence, the invention provides a kind of two heat abstractors of LED street lamp.
The present invention 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 fins.
Described synthesizing jet-flow radiator comprises that a cross section is the cavity of 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 placement.
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.
Beneficial effect of the present invention:
(1) the present invention 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 as far as possible LED chip junction temperature keep consistency;
(2) heat abstractor of this LED lamp, compared with traditional inserted sheet heat abstractor, has increased the coefficient of heat transfer between air-spray and radiating fin, has greatly improved heat dispersion; Compared with traditional synthesizing jet-flow device, not consuming electric power, meets the environmental requirement of energy-saving and emission-reduction, reduces operating cost.
Brief description of the drawings
Fig. 1 is the front view of two heat abstractors of a kind of LED street lamp of the present invention;
Fig. 2 is the perspective view of the embodiment of the present invention 1;
Fig. 3 is the perspective view of the embodiment of the present invention 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 present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of two heat abstractors of LED street lamp, comprise multiple LED integrated chips 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 fixed on 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 that equal number is each side set 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 fins, and multiple radiating fins can be arranged in parallel or be radian arrangement or be sun fancy and arrange.
As shown in Figure 4, described synthesizing jet-flow radiator 5 comprises that a cross section is the cavity 501 of 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 has certain distance apart from heat exchange elements upper wall, its distance is according to the size of actual synthesizing jet-flow radiator, the elasticity of elastic film and how many decisions of liquid refrigerant, the present embodiment distance is in 0.5mm-5mm, and described elastic film is provided with liquid refrigerant 506.
Access portal direction on described synthesizing jet-flow radiator is pointed to fin inserting type heat radiator 4, and fin inserting type heat radiator heat radiation and jet heat radiation combination, improved radiating efficiency greatly.
The synthesizing jet-flow radiator 5 of the present embodiment has 4, and one group between two, be 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 invention:
The heat producing when LED integrated chip 1 is luminous passes to heat exchange elements 3 by substrate 2, heat exchange elements 3 can pass to rapidly elastic film 502 places in fin inserting type heat radiator and synthesizing jet-flow radiator 5 heat, fin-inserted radiator contacts the object that reaches passive heat radiation with air on the one hand, on the other hand, the liquid refrigerant 506 at elastic film 502 places expands rapidly owing to being heated, gas pressure intensity in chamber is increased, promoting piston 504 moves upward, at passage 505 place's 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 that arrives 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 the interior pressure of synthesizing jet-flow radiator 5 reduces, piston 504 moves downward, at passage 505 place's air amounts, along with liquid refrigerant 506 increasing gradually at elastic film 502 places, make elastic film 502 convex distortion, elastic film 502 contacts with heat exchange elements 3 upper walls, liquid refrigerant 506 is heated and expands rapidly, promoting piston 504 moves upward, at passage 505 place's ejection air, so loop cycle, at passage, 505 places form jet, the jet forming at passage 505 places can be taken away the heat on fin inserting type heat radiator 4 rapidly.
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, each side one of fin inserting type heat radiator.Other features are identical with embodiment 1.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not limited by the examples; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
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 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.
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 fins.
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 that a cross section is the cavity of 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 placement.
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 |
|---|---|---|---|
| CN201410344906.5A CN104132318B (en) | 2014-07-18 | 2014-07-18 | A kind of double heat abstractors of LED street lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410344906.5A CN104132318B (en) | 2014-07-18 | 2014-07-18 | A kind of double heat abstractors of LED street lamp |
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| Publication Number | Publication Date |
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| CN104132318A true CN104132318A (en) | 2014-11-05 |
| CN104132318B CN104132318B (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410344906.5A Expired - Fee Related CN104132318B (en) | 2014-07-18 | 2014-07-18 | A kind of double heat abstractors of LED street lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185750A (en) * | 2018-09-13 | 2019-01-11 | 湖南华特光电科技有限公司 | A kind of Projecting Lamp |
| CN112879845A (en) * | 2021-01-21 | 2021-06-01 | 谢玉华 | Self-heat dissipation type LED lamp |
Citations (4)
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| US20100014839A1 (en) * | 2006-09-14 | 2010-01-21 | Koninklijke Philips Electronics N.V. | Lighting assembly and method for providing cooling of a light source |
| US20110164383A1 (en) * | 2008-09-12 | 2011-07-07 | Koninklijke Philips Electronics N.V | Device provided with a gap-like space and a synthetic jet generator coupled there-to |
| CN103822194A (en) * | 2012-11-16 | 2014-05-28 | 飞秒光电科技(西安)有限公司 | LED-based cooling system for sunlight simulated light source |
| CN204062941U (en) * | 2014-07-18 | 2014-12-31 | 华南理工大学 | A kind of two heat abstractors of LED street lamp |
-
2014
- 2014-07-18 CN CN201410344906.5A patent/CN104132318B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100014839A1 (en) * | 2006-09-14 | 2010-01-21 | Koninklijke Philips Electronics N.V. | Lighting assembly and method for providing cooling of a light source |
| US20110164383A1 (en) * | 2008-09-12 | 2011-07-07 | Koninklijke Philips Electronics N.V | Device provided with a gap-like space and a synthetic jet generator coupled there-to |
| CN103822194A (en) * | 2012-11-16 | 2014-05-28 | 飞秒光电科技(西安)有限公司 | LED-based cooling system for sunlight simulated light source |
| CN204062941U (en) * | 2014-07-18 | 2014-12-31 | 华南理工大学 | A kind of two heat abstractors of LED street lamp |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185750A (en) * | 2018-09-13 | 2019-01-11 | 湖南华特光电科技有限公司 | A kind of Projecting Lamp |
| CN109185750B (en) * | 2018-09-13 | 2021-01-12 | 湖南华特光电科技有限公司 | Projection lamp |
| CN112879845A (en) * | 2021-01-21 | 2021-06-01 | 谢玉华 | Self-heat dissipation type LED lamp |
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| Publication number | Publication date |
|---|---|
| CN104132318B (en) | 2017-06-20 |
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