CN102878490B - A kind of LED spotlight of cross-ventilation heat radiation - Google Patents
A kind of LED spotlight of cross-ventilation heat radiation Download PDFInfo
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- CN102878490B CN102878490B CN201210335985.4A CN201210335985A CN102878490B CN 102878490 B CN102878490 B CN 102878490B CN 201210335985 A CN201210335985 A CN 201210335985A CN 102878490 B CN102878490 B CN 102878490B
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Abstract
The present invention relates to the LED spotlight of a kind of cross-ventilation heat radiation.It includes: radiator and light engine, and described radiator includes: both ends open is linked to be the radiating piece in the cylindrical drum shell of cavity and cylindrical drum enclosure cavity; Light engine includes: protecgulum, aluminium base, be located at several lens, several LED between protecgulum and aluminium base, after assembling, extraneous air is communicated with the cavity in protecgulum by ventilative groove, aluminium base is fixedly connected with the center of heat-conductive connection part on a heat sink by screw, the cross section of aluminium base is less than lumen of radiator cross section and the cavity in protecgulum is communicated with the lower ending opening in several vertical convection chambeies independent of each other by the space of aluminium base periphery, and the upper end open in several vertical convection chambeies independent of each other is communicated with extraneous air.Adopt after said structure, the present invention is dispelled the heat by air vertical convection, and its structure member is few, assembling easily, convenient extend extended products and cost low.
Description
Technical field
The present invention relates to LED spotlight technical field, refer in particular to the LED spotlight of a kind of cross-ventilation heat radiation.
Background technology
Along with the development of lighting engineering, various light fixture is constantly weeded out the old and bring forth the new.LED illumination lamp has been widely applied to a lot of occasion with plurality of advantages such as its energy-saving and environmental protection, but, how better heat radiation is carried out to LED and become the difficult point of LED illumination technology.
Particularly for LED spotlight structure, existing light engine and radiator and assembly structure cannot realize cross-ventilation heat radiation, can only be that radiating efficiency is low by traditional heat loss through conduction:
The radiator structure of existing shot-light normally adopts single radiator or radiator to add fan, and radiator adds that fan can increase cost, and needs extra power supply; And existing single radiator adopts heat transfer and heat leakage mode to be dispelled the heat by the contact area increasing fin and extraneous air usually, but, this radiating effect cannot solve the tropical island effect of the local heat radiation high temperature of thermal source contact, easily cause heat radiation bad, for this radiator with tubular closure adopted in shot-light, only by conduction and fin heat radiation, its radiating effect is poor, is unfavorable for the heat radiation needs of the high-power LED worked long hours.
The light engine of existing shot-light is all be contained in LED on aluminium base and the parts such as lens and protecgulum composition, lens opening on protecgulum fills lens and LED, this assembling is sealing, therefore, when dispelling the heat, the radiator be assembled on light engine just cannot realize the function of cross-ventilation heat radiation, largely reducing the radiating effect of LED lamp in this like this.
In view of this, be necessary to provide a kind of LED spotlight that can realize cross-ventilation heat radiation to solve this situation.
Summary of the invention
Object of the present invention is exactly provide a kind of LED spotlight that can realize cross-ventilation heat radiation for the deficiencies in the prior art part.
For achieving the above object, technical scheme of the present invention is: a kind of LED spotlight of cross-ventilation heat radiation, includes: radiator and light engine,
Described radiator includes: both ends open is linked to be the radiating piece in the cylindrical drum shell of cavity and cylindrical drum enclosure cavity, described radiating piece is section bar, the cross section of radiating piece is made up of the heat-conductive connection part and even radiating ribs of outwards dispersing more than 3 or 3 that are molded over heat-conductive connection part periphery being positioned at cylindrical drum housing center, and the outer end of radiating ribs is connected with cylindrical drum outer casing inner wall and makes the cavity of cylindrical drum shell be split into several vertical convection chambeies independent of each other;
Light engine includes: protecgulum, aluminium base, be located at several lens, several LED between protecgulum and aluminium base, be fixed on several LED on aluminium base respectively with several lens one_to_one corresponding, protecgulum has several lens openings, the edge distribution of each lens opening in protecgulum has several stent foots, and each lens are corresponding to be respectively installed in after on several corresponding stent foots and lens opening forms ventilative groove;
After assembling, extraneous air is communicated with the cavity in protecgulum by ventilative groove, aluminium base is fixedly connected with the center of heat-conductive connection part on a heat sink by screw, the cross section of aluminium base is less than lumen of radiator cross section and the cavity in protecgulum is communicated with the lower ending opening in several vertical convection chambeies independent of each other by the space of aluminium base periphery, and the upper end open in several vertical convection chambeies independent of each other is communicated with extraneous air.
Also connecting ring is provided with between described radiator and light engine, one-body molded in described protecgulum have several threaded post, a part of radiating ribs of described radiator forms connecting screw hole, connecting ring is fixedly connected in described connecting screw hole by several screwings, and connecting ring is fixedly connected in described threaded post by several lower screws.
Be plugged with upper cover plate at the top of described radiator, upper cover plate have several passages communicated with several vertical convection chamber upper sheds independent of each other described.
Described stent foot has step, and described rims of the lens has lens step, and lens step is erected at the stepped portions on a corresponding coil support pin, and described ventilative groove is lens on step and the space between lens opening.
Described cylindrical drum shell and radiating piece one-body molded be same parts.
The both sides of described heat-conductive connection part and the both sides of described radiating ribs are distributed with several radiating fins.
The panel of described protecgulum only has several lens openings.
Described cylindrical drum outer casing inner wall is distributed with several vertical radiating grooves.
Described lens opening is any one or multiple combination in circular, square, regular hexagon, octagon, ellipse, rhombus, trapezoidal, triangle.
Several lens openings described are six circular holes, are looped around the arranged distribution of centered lens holes by five lens openings.
After adopting said structure, in light engine in the present invention, ventilative groove is formed between lens opening and lens, like this, the lens opening that cold air just can cover in the past enters ventilative groove, ventilative groove enters front cover cavity, again from the annular space between aluminium base and protecgulum chamber by the heat cross-ventilation of aluminium base to the vertical convection chamber independent of each other of several radiator on top under shed, diffuse to extraneous air from vertical convection to the upper shed in vertical convection chamber again, realize the vertical convective airflow heat sinking function of LED spotlight of the present invention; Further, and the heat conduction at aluminium base center is to the heat-conductive connection part being positioned at cylindrical drum housing center, then carries out traditional heat loss through conduction by several radiating ribs of outwards dispersing and radiating fin.The radiator structure of LED spotlight of the present invention is all hidden in cylindrical drum shell, make external styling attractive in appearance, and there is air vertical convection heat sinking function, considerably increase harmony and the radiating efficiency of heat radiation, avoid the tropical island effect that hot-spot produces, its structure member is few, assembling easily, convenient extend extended products and cost low.
Accompanying drawing explanation
Fig. 1 is the perspective exploded view of the embodiment of the present invention;
Fig. 2 is the cross-sectional view of the embodiment of the present invention;
Fig. 3 is the perspective view of the embodiment of the present invention;
Fig. 4 is the cross-sectional view of the light engine in the embodiment of the present invention;
Fig. 5 is the perspective view of the lens in the embodiment of the present invention;
Fig. 6 is the perspective view of the protecgulum in the embodiment of the present invention;
Fig. 7 is the cross-sectional view of the radiator in the embodiment of the present invention;
Fig. 8 is the perspective view of the radiator in the embodiment of the present invention.
Detailed description of the invention
Embodiment below in conjunction with accompanying drawing 1-8 is described in further detail:
The LED spotlight of a kind of cross-ventilation heat radiation in embodiment, includes: radiator 100 and light engine 200,
Described radiator 100 includes: both ends open is linked to be the radiating piece 120 in the cylindrical drum shell 110 of cavity and cylindrical drum enclosure cavity 110, described radiating piece 120 is section bar, the cross section of radiating piece 120 is made up of the heat-conductive connection part 121 and even radiating ribs 122 of outwards dispersing more than 3 or 3 that are molded over heat-conductive connection part 121 periphery being positioned at cylindrical drum shell 110 center, and the outer end of radiating ribs 122 is connected with cylindrical drum shell 110 inwall and makes the cavity of cylindrical drum shell 110 be split into several vertical convection chambeies 130 independent of each other;
Light engine 200 includes: protecgulum 210, aluminium base 220, be located at several lens 230, several LED240 between protecgulum 210 and aluminium base 220, be fixed on several LED240 on aluminium base 220 respectively with several lens 230 one_to_one corresponding, protecgulum 210 has several lens openings 211, the edge distribution of each lens opening 211 in protecgulum has several stent foots 212, and each lens 230 respectively corresponding being installed in after on several corresponding stent foots 212 form with lens opening 211 groove 250 of breathing freely;
After assembling, extraneous air is communicated with the cavity in protecgulum 210 by ventilative groove 250, aluminium base 220 is fixedly connected on the center of the heat-conductive connection part 121 on radiator 100 by screw 260, the cross section of aluminium base 220 is less than radiator 100 intracavity section and the cavity in protecgulum 210 is communicated with the lower ending opening in several vertical convection chambeies 130 independent of each other by the space of aluminium base 220 periphery, and the upper end open in several vertical convection chambeies 130 independent of each other is communicated with extraneous air.
Connecting ring 300 is also provided with between described radiator 100 and light engine 200, one-body molded in described protecgulum 210 have several threaded post 213, a part of radiating ribs 122 of described radiator 100 forms connecting screw hole 122a, connecting ring 300 is fixedly connected in described connecting screw hole 122a by several screwings 400, and connecting ring 300 is fixedly connected in described threaded post 213 by several lower screws 500.
Be plugged with upper cover plate 600 at the top of described radiator 100, upper cover plate 600 have several passages 610 communicated with several vertical convection chamber 130 upper sheds independent of each other described.
Described stent foot 212 has step 212a, described lens 230 edge has lens step 231, lens step 231 is erected at the step 212a position on a corresponding coil support pin 212, and described ventilative groove 250 is lens 230 on step 212a and the space between lens opening 211.
Described cylindrical drum shell 110 and radiating piece 120 one-body molded be same parts.
The both sides of described heat-conductive connection part 121 and the both sides of described radiating ribs 122 are distributed with several radiating fins 123.
The panel of described protecgulum 210 only has several lens openings 211.
Described cylindrical drum shell 110 inwall is distributed with several vertical radiating grooves 111.
Described lens opening 211 is any one or multiple combination in circular, square, regular hexagon, octagon, ellipse, rhombus, trapezoidal, triangle.
Several lens openings 211 described are six circular holes, are looped around the arranged distribution of centered lens holes 211 by five lens openings 211.
During use, the heat accumulation that LED240 produces is on aluminium base 220, make the air heating of aluminium base 220 periphery, the air of heating enters several vertical convection chamber 130 independent of each other under sheds in radiator 100 from the annular space between aluminium base 220 and protecgulum 210 chamber, then diffuses to extraneous air from the upper shed in vertical convection chamber 130; And cold air just can enter ventilative groove 250 from the lens opening 211 protecgulum 210, enter protecgulum 210 inner chamber from ventilative groove 250 again and add to annular space between aluminium base 220 and protecgulum 210 chamber, realize the vertical convective airflow heat sinking function of LED spotlight of the present invention;
Meanwhile, the heat conduction at aluminium base 220 center to the heat-conductive connection part 121 being positioned at cylindrical drum shell 110 center, then carries out traditional heat loss through conduction by several radiating ribs 122 of outwards dispersing and radiating fin 123.
Because the radiator structure of LED spotlight of the present invention is all hidden in cylindrical drum shell 110, make external styling attractive in appearance, and there is air vertical convection heat sinking function, considerably increase harmony and the radiating efficiency of heat radiation, avoid the tropical island effect that hot-spot produces, its structure member is few, assembling easily, convenient extend extended products and cost low.
Below be only the specific embodiment of the present invention, do not limit the protection domain of patent of the present invention, the equivalent arrangements done by those skilled in the art all should within protection scope of the present invention.
Claims (10)
1. the LED spotlight of a cross-ventilation heat radiation, include: radiator and light engine, it is characterized in that: described radiator includes: both ends open is linked to be the radiating piece in the cylindrical drum shell of cavity and cylindrical drum enclosure cavity, described radiating piece is section bar, the cross section of radiating piece is made up of the heat-conductive connection part and even radiating ribs of outwards dispersing more than 3 that are molded over heat-conductive connection part periphery being positioned at cylindrical drum housing center, and the outer end of radiating ribs is connected with cylindrical drum outer casing inner wall and makes the cavity of cylindrical drum shell be split into several vertical convection chambeies independent of each other;
Light engine includes: protecgulum, aluminium base, be located at several lens, several LED between protecgulum and aluminium base, be fixed on several LED on aluminium base respectively with several lens one_to_one corresponding, protecgulum has several lens openings, the edge distribution of each lens opening in protecgulum has several stent foots, and each lens are corresponding to be respectively installed in after on several corresponding stent foots and lens opening forms ventilative groove;
After assembling, extraneous air is communicated with the cavity in protecgulum by ventilative groove, aluminium base is fixedly connected with the center of heat-conductive connection part on a heat sink by screw, the cross section of aluminium base is less than lumen of radiator cross section and the cavity in protecgulum is communicated with the lower ending opening in several vertical convection chambeies independent of each other by the space of aluminium base periphery, and several vertical convection chamber upper sheds independent of each other are communicated with extraneous air.
2. the LED spotlight of a kind of cross-ventilation heat radiation according to claim 1, it is characterized in that: between described radiator and light engine, be also provided with connecting ring, one-body molded in described protecgulum have several threaded post, a part of radiating ribs of described radiator forms connecting screw hole, connecting ring is fixedly connected in described connecting screw hole by several screwings, and connecting ring is fixedly connected in described threaded post by several lower screws.
3. the LED spotlight of a kind of cross-ventilation heat radiation according to claim 1, it is characterized in that: be plugged with upper cover plate at the top of described radiator, upper cover plate has several passages communicated with several vertical convection chamber upper sheds independent of each other described.
4. the LED spotlight of a kind of cross-ventilation heat radiation according to claim 1 or 2 or 3, it is characterized in that: described stent foot has step, described rims of the lens has lens step, lens step is erected at the stepped portions on a corresponding coil support pin, and described ventilative groove is lens on step and the space between lens opening.
5. the LED spotlight of a kind of cross-ventilation heat radiation according to claim 4, is characterized in that: described cylindrical drum shell and radiating piece one-body molded be same parts.
6. the LED spotlight of a kind of cross-ventilation heat radiation according to claim 5, is characterized in that: the both sides of described heat-conductive connection part and the both sides of described radiating ribs are distributed with several radiating fins.
7. the LED spotlight of a kind of cross-ventilation heat radiation according to claim 6, is characterized in that: the panel of described protecgulum only has several lens openings.
8. the LED spotlight of a kind of cross-ventilation heat radiation according to claim 7, is characterized in that: described cylindrical drum outer casing inner wall is distributed with several vertical radiating grooves.
9. the LED spotlight of a kind of cross-ventilation heat radiation according to claim 8, is characterized in that: described lens opening is any one or multiple combination in circular, square, regular hexagon, octagon, ellipse, rhombus, trapezoidal, triangle.
10. the LED spotlight of a kind of cross-ventilation heat radiation according to claim 9, is characterized in that: several lens openings described are six circular holes, are looped around the arranged distribution of centered lens holes by five lens openings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210335985.4A CN102878490B (en) | 2012-09-12 | 2012-09-12 | A kind of LED spotlight of cross-ventilation heat radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210335985.4A CN102878490B (en) | 2012-09-12 | 2012-09-12 | A kind of LED spotlight of cross-ventilation heat radiation |
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| Publication Number | Publication Date |
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| CN102878490A CN102878490A (en) | 2013-01-16 |
| CN102878490B true CN102878490B (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210335985.4A Expired - Fee Related CN102878490B (en) | 2012-09-12 | 2012-09-12 | A kind of LED spotlight of cross-ventilation heat radiation |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244855A (en) * | 2013-05-17 | 2013-08-14 | 北京信能阳光新能源科技有限公司 | Modularization intelligent dimming LED (light-emitting diode) high bay lighting lamp |
| CN103277768B (en) * | 2013-06-05 | 2015-08-12 | 北极光股份有限公司 | A kind of radiator structure of LED spotlight |
| CN105909993A (en) * | 2016-06-15 | 2016-08-31 | 湖北汉光光电股份有限公司 | Large-power LED bulb lamp for illumination |
| CN115013791B (en) * | 2022-07-04 | 2024-03-15 | 中山市荣烁电气有限公司 | Aluminum-copper combined radiator and preparation method thereof |
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| CN101701676A (en) * | 2009-09-09 | 2010-05-05 | 东莞勤上光电股份有限公司 | LED lamps and lamp module consisting of same |
| CN102221189A (en) * | 2011-06-11 | 2011-10-19 | 东莞勤上光电股份有限公司 | Vertical convector radiator and vertical convector radiating down lamp |
| CN202349760U (en) * | 2011-11-16 | 2012-07-25 | 福建云顶光电科技有限公司 | High-radiating and high-power light emitting diode (LED) spotlight |
| CN202813084U (en) * | 2012-09-12 | 2013-03-20 | 东莞勤上光电股份有限公司 | Air convection heat-sinking light-emitting diode (LED) spotlight |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008005697A1 (en) * | 2008-01-23 | 2009-07-30 | Zumtobel Lighting Gmbh | LED light with coolant |
| CN202118686U (en) * | 2011-05-13 | 2012-01-18 | 姚育林 | LED (Light Emitting Diode) spot lamp with radiation effect |
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2012
- 2012-09-12 CN CN201210335985.4A patent/CN102878490B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701676A (en) * | 2009-09-09 | 2010-05-05 | 东莞勤上光电股份有限公司 | LED lamps and lamp module consisting of same |
| CN102221189A (en) * | 2011-06-11 | 2011-10-19 | 东莞勤上光电股份有限公司 | Vertical convector radiator and vertical convector radiating down lamp |
| CN202349760U (en) * | 2011-11-16 | 2012-07-25 | 福建云顶光电科技有限公司 | High-radiating and high-power light emitting diode (LED) spotlight |
| CN202813084U (en) * | 2012-09-12 | 2013-03-20 | 东莞勤上光电股份有限公司 | Air convection heat-sinking light-emitting diode (LED) spotlight |
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| CN102878490A (en) | 2013-01-16 |
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Effective date of registration: 20171101 Address after: 523565 Guangdong city of Dongguan province Changping Zhen Heng Jiang Jiang Xia Heng Industrial Road, set up a file Patentee after: KINGSUN OPTOELECTRONIC CO., LTD. Address before: 523000 Guangdong city of Dongguan province Changping Zhen Heng Jiang set up a file Patentee before: Dongguan Qinshang Photoelectric Co., Ltd. |
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