CN101839465A - Heat sink and LED light using same - Google Patents
Heat sink and LED light using same Download PDFInfo
- Publication number
- CN101839465A CN101839465A CN201010177036A CN201010177036A CN101839465A CN 101839465 A CN101839465 A CN 101839465A CN 201010177036 A CN201010177036 A CN 201010177036A CN 201010177036 A CN201010177036 A CN 201010177036A CN 101839465 A CN101839465 A CN 101839465A
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- heat
- radiator
- led light
- heat abstractor
- light fixture
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Abstract
The invention provides a heat sink. The heat sink comprises a heat-dissipating body consisting of a column-shaped heat-dissipating base body and heat-dissipating fins arranged around the heat-dissipating base body, and an air channel provided with a central through hole, wherein the air channel is fixedly connected to the end surface of one side of the heat-dissipating body, and the through hole is vertical to the end surface of the heat-dissipating body. A light source part and a power supply part of the LED light using the heat sink are arranged on the end surfaces of both sides of the heat sink respectively. Because the air channel structure used for cross-ventilation and heat dissipation is adopted in the heat sink, the heat-dissipating efficiency of the heat-dissipating body is obviously improved. When the heat sink is used on the LED light, the heat-dissipating problem of the LED light is better improved, and the practicability of the LED light is also improved.
Description
Technical field
The present invention relates to a kind of heat abstractor, particularly relate to a kind of heat abstractor that utilizes cross-ventilation to improve heat-diffusing efficiency of heat abstractor.The invention still further relates to a kind of LED light fixture that utilizes this heat abstractor.
Background technology
Along with the enhancing of people's energy-saving and environmental protection consciousness, each state is all developing such as reproducible clean energy resourcies such as solar energy, wind energies energetically.At lighting field, various new light sources are also constantly weeded out the old and bring forth the new, and are widely used.Wherein, LED (light emitting diode) is with advantages such as its low energy consumption, high light efficiency, life-span length and colour rendering are good, by the lighting field that is applied in more and more widely.
Using great power LED is a kind of desirable selection as illuminating device.For LED, increase input power, the brightness meeting is risen pro rata.The efficient of LED is far from reaching 100%, can produce heat in the course of the work, during large-power light-emitting diodes work, heat concentrates in the small-sized chip, make that the temperature of chip internal is more and more higher, non-uniform Distribution, chip light emitting efficient and the fluorescent material that can cause thermal stress swash problems such as penetrating decrease in efficiency, and when temperature surpassed certain value, the crash rate of device is index law to be increased.Statistics shows, 2 ℃ of the every risings of component temperature, reliability decrease 10%.Therefore, be necessary in order to guarantee the operate as normal of LED, heat abstractor to be set in the LED light fixture.
But the present LED light fixture especially employed heat abstractor of high-power LED lamp can not satisfy the demand that the LED lamp power constantly promotes, and this defective aspect heat radiation has influenced the service life of LED light fixture greatly.Therefore, be badly in need of at present improving aspect the heat abstractor of LED light fixture.
Summary of the invention
Purpose of the present invention provides a kind of new heat abstractor just in order to solve above the deficiencies in the prior art, to improve the radiating efficiency of heat abstractor.
A kind of LED light fixture that utilizes this heat abstractor is provided, and is another goal of the invention of the present invention.
Heat abstractor of the present invention comprises a radiator, and described radiator is made up of the heat radiation matrix of a cylindricality and the radiating fin that is arranged on around the described heat radiation matrix.Heat abstractor of the present invention also includes air flue, and this air flue adopts heat-barrier material to make, and for having the tubular construction of central through hole, described air flue is fixedly connected on the side end face of radiator, and through hole is perpendicular to the radiator end face.
The heat that radiator gives out makes the rising of being heated of radiator ambient air, and hot-air rises along air flue, and the cold air of radiator below enters air flue subsequently and replenishes, thereby forms " stack effect ", reaches the purpose of cross-ventilation quick heat radiating.The purpose that adopts heat-barrier material to make air flue is in order to guarantee the temperature gradient in the air flue, reduces radiating efficiency after avoiding the circulation of hot-air to make air flue reach thermal balance.
Preferably, heat abstractor of the present invention includes two air flues, and two air flues are symmetrical, and leaves the gap between two air flues, is convenient to install other attachment members.
Further, the present invention also provides a kind of LED light fixture that utilizes above-mentioned heat abstractor, and described LED light fixture also includes the Lights section and power unit except that above-mentioned heat abstractor.
Heat abstractor comprises one by the heat radiation matrix of cylindricality and be arranged on the radiator that the radiating fin around the described heat radiation matrix is formed, and be fixedly connected on two air flues that be mutually symmetrical, that have central through hole on described radiator one side end face, the through hole of described air flue is perpendicular to the radiator end face, and leaves the gap between two air flues;
Power unit is installed on the radiator end face with the air flue homonymy, in the gap between two air flues;
The Lights section comprises a boss, be installed in the reflector on the boss, be inlaid in reflector bottom and be fixed at least one led chip on the boss, and the transmissive mirror that is installed in the reflector front end, described the Lights section is inlaid on the heat radiation matrix by boss, is connected on the radiator end face that is positioned at the air flue opposite side;
Power unit is connected with the led chip circuit, is used for powering to led chip.
Above-mentioned LED light fixture also includes the lampshade of a tubular, and described the Lights section, heat abstractor and power unit are installed in the lampshade, and leaves enough spaces between lampshade and heat abstractor.
The installation of LED light fixture also is provided with a fixed support on the LED light fixture for convenience, and described fixed support is installed on the radiator, and holder part is positioned at the upper end of air flue.
Heat abstractor of the present invention has significantly increased the radiating efficiency of radiator owing to adopted the air passage structure that is used for the cross-ventilation heat radiation.This heat abstractor is applied on the LED light fixture, can improves the heat dissipation problem of LED light fixture well, improve the practicality of LED light fixture.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1 described heat abstractor;
Fig. 2 is the STRUCTURE DECOMPOSITION figure of the embodiment of the invention 1 described heat abstractor;
Fig. 3 is the assembly drawing of the embodiment of the invention 2 described LED light fixtures;
Fig. 4 is the structural representation that the embodiment of the invention 2 described LED light fixtures are removed lampshade 52;
Fig. 5 is the STRUCTURE DECOMPOSITION figure of the embodiment of the invention 2 described LED light fixtures.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and the specific embodiments.
A kind of heat abstractor, its structure such as Fig. 1 include a radiator 1 and a side that is installed in radiator 1, are used for the air flue 2 of cross-ventilation heat radiation.
A kind of LED light fixture is made up of the Lights section, heat abstractor and power unit three parts, its outward appearance assembly drawing as shown in Figure 3, internal structure such as Fig. 4, Fig. 5.
Heat abstractor adopts embodiment 1 described heat abstractor.
The Lights section such as Fig. 5 are made up of boss 31, led chip 32, reflector 33, silicagel pad 34, transmissive mirror 35 and snap ring 36 in turn.Boss 31 adopts the aluminium identical with radiator 1 to make, and is inlaid on the heat radiation matrix 11 of 1 one end faces of radiator.Reflector 33 is installed on the boss 31, is embedded with a led chip 32 in reflector 33 bottoms.With snap ring 36 transmissive mirror 35 is fixedly mounted on the front end of reflector 33, and between reflector 33 and transmissive mirror 35, adopts silicagel pad 34 to seal.
Above the Lights section, heat abstractor and power unit are installed in the lampshade 52 of a tubular, and guarantee to leave enough spaces come ventilating air between lampshade 52 and heat abstractor.Engraved structure is adopted in bottom at lampshade 52, further facilitates circulation of air, can reach the purpose of quick heat radiating, and its structure as shown in Figure 3.
As Fig. 4, a fixed support 51 that is used to lift the LED light fixture is installed in radiator 1, and holder part is positioned at the upper end of air flue 2.
Claims (7)
1. heat abstractor, comprise a radiator (1), described radiator (1) is by the heat radiation matrix (11) of a cylindricality and be arranged on described heat radiation matrix (11) radiating fin (12) all around and form, it is characterized in that also comprising air flue tubular, that have central through hole (2), described air flue (2) is fixedly connected on the side end face of radiator (1), through hole is used for the cross-ventilation heat radiation perpendicular to radiator (1) end face.
2. heat abstractor according to claim 1 is characterized in that being provided with two air flues (2) on a side end face of radiator (1), and two air flues (2) are mutually symmetrical, and leave the gap between two air flues (2).
3. heat abstractor according to claim 1 and 2 is characterized in that described air flue (2) adopts heat-barrier material to make.
4. a LED light fixture that uses the described heat abstractor of claim 2 includes the Lights section, heat abstractor and power unit, it is characterized in that:
Described heat abstractor comprises a radiator (1), this radiator (1) is by the heat radiation matrix (11) of a cylindricality and be arranged on described heat radiation matrix (11) radiating fin (12) all around and form, and be fixedly connected on two air flues that be mutually symmetrical, that have central through hole (2) on described radiator (1) one side end face, the through hole of described air flue (2) leaves the gap perpendicular to radiator (1) end face between two air flues (2);
Described power unit (41) is installed on radiator (1) end face with air flue (2) homonymy, in the gap between two air flues (2);
Described the Lights section comprises a boss (31), be installed in the reflector (33) on the boss (31), be inlaid in reflector (33) bottom and be fixed at least one led chip (32) on the boss (31), and the transmissive mirror (35) that is installed in reflector (33) front end, described the Lights section is inlaid on the heat radiation matrix (11) by boss (31), is connected on radiator (1) end face that is positioned at air flue (2) opposite side;
Described power unit (41) is connected with led chip (32) circuit.
5. LED light fixture according to claim 4 is characterized in that described LED light fixture also comprises the lampshade of a tubular (52), and described the Lights section, heat abstractor and power unit are installed in the lampshade (52).
6. LED light fixture according to claim 5 is characterized in that leaving the space between lampshade (52) and heat abstractor.
7. LED light fixture according to claim 4 is characterized in that described LED light fixture also includes a fixed support (51), and described fixed support (51) is installed on the radiator (1), and holder part is positioned at the upper end of air flue (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010177036A CN101839465A (en) | 2010-05-16 | 2010-05-16 | Heat sink and LED light using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010177036A CN101839465A (en) | 2010-05-16 | 2010-05-16 | Heat sink and LED light using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101839465A true CN101839465A (en) | 2010-09-22 |
Family
ID=42743019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010177036A Pending CN101839465A (en) | 2010-05-16 | 2010-05-16 | Heat sink and LED light using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101839465A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761386A (en) * | 2004-10-12 | 2006-04-19 | 盟立光能科技股份有限公司 | Heat sink for light cluster of light-emitting diode |
| US20070091632A1 (en) * | 2005-10-25 | 2007-04-26 | Visteon Global Technologies, Inc. | Convectively cooled headlamp assembly |
| CN101025256A (en) * | 2007-04-13 | 2007-08-29 | 港立设计有限公司 | Light-emitting diode module and its lamp |
| CN201187759Y (en) * | 2008-03-31 | 2009-01-28 | 旭彩光电股份有限公司 | Heat radiation structure of LED illuminating apparatus |
| CN101430061A (en) * | 2008-10-21 | 2009-05-13 | 周克锋 | LED lampshade with chimney type air draft pipe |
| CN101566326A (en) * | 2008-04-23 | 2009-10-28 | 富准精密工业(深圳)有限公司 | Illuminating device and light engine thereof |
| CN101666435A (en) * | 2009-09-30 | 2010-03-10 | 浙江西子光电科技有限公司 | LED lamp with heat dissipation device and manufacturing method thereof |
-
2010
- 2010-05-16 CN CN201010177036A patent/CN101839465A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761386A (en) * | 2004-10-12 | 2006-04-19 | 盟立光能科技股份有限公司 | Heat sink for light cluster of light-emitting diode |
| US20070091632A1 (en) * | 2005-10-25 | 2007-04-26 | Visteon Global Technologies, Inc. | Convectively cooled headlamp assembly |
| CN101025256A (en) * | 2007-04-13 | 2007-08-29 | 港立设计有限公司 | Light-emitting diode module and its lamp |
| CN201187759Y (en) * | 2008-03-31 | 2009-01-28 | 旭彩光电股份有限公司 | Heat radiation structure of LED illuminating apparatus |
| CN101566326A (en) * | 2008-04-23 | 2009-10-28 | 富准精密工业(深圳)有限公司 | Illuminating device and light engine thereof |
| CN101430061A (en) * | 2008-10-21 | 2009-05-13 | 周克锋 | LED lampshade with chimney type air draft pipe |
| CN101666435A (en) * | 2009-09-30 | 2010-03-10 | 浙江西子光电科技有限公司 | LED lamp with heat dissipation device and manufacturing method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 041000 Shanxi Province, Linfen city yaomiao Guangyu Industrial Park Applicant after: Shanxi Guangyu Semiconductor Lighting Co., Ltd. Address before: 041000 Shanxi Province, Linfen city yaomiao Guangyu Industrial Park (Linfen art school in South West 800 meters) Applicant before: Shanxi Guangyu LED Lighting Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: SHANXI GUANGYU LED LIGHTING CO. LTD. TO: SHANXI GUANGYU SEMICONDUCTOR LIGHTING CO., LTD. |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100922 |