CN103574314A - Light-emitting diode (LED) lamp - Google Patents
Light-emitting diode (LED) lamp Download PDFInfo
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- CN103574314A CN103574314A CN201210253754.9A CN201210253754A CN103574314A CN 103574314 A CN103574314 A CN 103574314A CN 201210253754 A CN201210253754 A CN 201210253754A CN 103574314 A CN103574314 A CN 103574314A
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- light fixture
- led light
- cooling liquid
- led lamp
- cover plate
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Abstract
The invention relates to the technical field of light-emitting diode (LED) lighting and discloses an LED lamp which comprises a radiating device and an LED lamp group assembly. The radiating device comprises a base plate and a cover plate which are in covering fit to form a sealing cavity with a liquid inlet and a liquid outlet, and cooling liquid is filled in the sealing cavity. The LED lamp group assembly is fixed on the outer surface of the base plate. Due to the fact that the cooling liquid is filled in the sealing cavity, heat generated by the LED lamp group assembly is transferred to the base plate, the base plate exchanges heat with the flowing cooling liquid, the heated cooling liquid is discharged from the liquid outlet, the heat generated by the LED lamp group assembly is quickly discharged to the outside of the device by the flowing cooling liquid, and the radiating efficiency is high.
Description
Technical field
The present invention relates to LED lighting technical field, particularly relate to a kind of LED light fixture.
Background technology
Under Present Global energy starved background, saving the energy is the major issue that we shall face future, at lighting field, LED(light-emitting diode, light emitting diode, is called for short LED) application of luminous product just attracting common people's sight, and LED is as a kind of novel green light source product, will be the main trend of future development, 21st century take the novel illumination light source epoch that LED is representative entering.
In order to reach illumination requirement, LED light fixture generally includes a plurality of LED, and the heat radiation of these LED is to affect LED light fixture to use state and the principal element in service life, and especially for high-power LED lamp, heat dissipation problem has become the technical bottleneck that affects its extensive use.
In the prior art, the installed surface at LED arranges thermal conductive silicon rubber cushion conventionally, and the heat that utilizes heat conduction that LED is produced is arranged loose in air, and the radiating effect of this radiating mode is not good.
Summary of the invention
The object of this invention is to provide a kind of LED light fixture having compared with high cooling efficiency.
LED light fixture of the present invention, comprising: heat abstractor and LED lamp group assembly, wherein,
Described heat abstractor, comprises substrate and cover plate, and described substrate and cover plate cover and form the annular seal space with inlet and liquid outlet, in described annular seal space, are connected with cooling liquid;
Described LED lamp group assembly, is fixed on the outer surface of substrate.
Further, LED light fixture of the present invention also comprises: be fixed on the power supply of cover plate, described power supply has the outer wrapping layer of insulating heat-conductive.
Preferably, described cover plate has the storage tank of recessed cooling liquid, and described power supply is positioned at described storage tank.
Preferably, described outer wrapping layer material is insulating heat-conductive silica gel.
Preferably, described substrate has one group of first radiating fin in annular seal space, described cover plate has one group of second radiating fin in annular seal space, described one group of first radiating fin and described one group of second radiating fin alternative arrangement, form a plurality of flow-guiding channels along inlet to liquid outlet direction side by side.
Described heat abstractor further comprises: two valves that are separately positioned on inlet outside and liquid outlet outside.
Preferably, described cooling liquid is water.
Optionally, described LED lamp group assembly is fixedly connected with substrate by bolt.
In technical solution of the present invention, in the annular seal space of described heat abstractor, be connected with cooling liquid, the heat that LED lamp group assembly produces conducts to substrate, substrate and mobile cooling liquid carry out heat exchange, cooling liquid after intensification is discharged through liquid outlet, the cooling liquid that the heat that LED lamp group assembly produces is flowed fast row is dissipated to device outside, and radiating efficiency is higher.
Accompanying drawing explanation
Fig. 1 is the front view (local is cutaway view) of the LED light fixture of one embodiment of the invention;
Fig. 2 is that Fig. 1 is in the cross sectional view at A-A place.
Reference numeral:
10-heat abstractor 30-LED lamp group assembly 11-substrate 12-cover plate
13-first radiating fin 14-the second radiating fin 15-inlet 16-liquid outlet
17-power supply 18-outer wrapping layer 19-storage tank 20-flow-guiding channel
21-valve
The specific embodiment
In order to solve the poor technical problem of existing LED light fixture radiating effect, the invention provides the LED light fixture that a kind of radiating efficiency is higher.
As shown in Figure 1, the LED light fixture that one embodiment of the invention provides, comprising: heat abstractor 10 and LED lamp group assembly 30, wherein,
Described heat abstractor 10, comprises substrate 11 and cover plate 12, and described substrate 11 and cover plate 12 cover and form the annular seal space with inlet 15 and liquid outlet 16, in described annular seal space, are connected with cooling liquid;
Described LED lamp group assembly 30, is fixed on the outer surface of substrate 11.
In technical solution of the present invention, in the annular seal space of described heat abstractor, be connected with cooling liquid, the heat that LED lamp group assembly produces conducts to substrate, substrate and mobile cooling liquid carry out heat exchange, cooling liquid after intensification is discharged through liquid outlet, the cooling liquid that the heat that LED lamp group assembly produces is flowed fast row is dissipated to device outside, and radiating efficiency is higher, and the life-span of LED light fixture also so greatly improves.
Further, described LED light fixture also comprises: be fixed on the power supply 17 of cover plate 12, described power supply 17 has the outer wrapping layer 18 of insulating heat-conductive.Outer wrapping layer 18 material are preferably insulating heat-conductive silica gel, have good sealing effectiveness simultaneously.Like this, power supply 17 and cover plate 12 close contacts, the inner heat producing of power supply 17 conducts to cover plate 12 through outer wrapping layer 18, cover plate 12 carries out heat exchange with mobile cooling liquid, heat is arranged and is dissipated to device outside fast with mobile cooling liquid, power supply has good radiating effect, and the life-span improves greatly.
Shown in Fig. 1, described cover plate 12 has the storage tank 19 of recessed cooling liquid, and described power supply 17 is positioned at described storage tank 19.Such design can increase the heat exchange area of power supply and cover plate, is equivalent to have increased the heat exchange area with cooling liquid, has further improved radiating effect.Outer wrapping layer 18 can form by vacuum encapsulation in power supply is placed in storage tank 19.
As depicted in figs. 1 and 2, in order further to improve the radiating effect of LED light fixture, described substrate 11 has one group of first radiating fin 13 in annular seal space, described cover plate 12 has one group of second radiating fin 14 in annular seal space, described one group of first radiating fin 13 and described one group of second radiating fin 14 alternative arrangement, form a plurality of flow-guiding channels 20 along inlet 15 to liquid outlet 16 directions side by side.One group of first radiating fin 13 and one group of second radiating fin 14 have larger heat exchange area, flow-guiding channel 20 can evenly be shunted the cooling liquid passing into, water conservancy diversion, heat conduction efficiency further improves, the heat that thermal source the produces liquid that is cooled is taken away in time through liquid outlet 16 and is discharged, and the radiating effect of LED light fixture is further enhanced.
Cooling liquid preferably adopts water, and the thermal capacitance of water is far superior to the heat eliminating mediums such as metal of the prior art, air, and economic environmental protection, takes facility.Can by the aperture of by-pass valve control 21, control the flow velocity of sealing intracavity liquid at inlet 15 and the outer valve 21 that arranges respectively of liquid outlet 16, for the operating temperature of LED lamp group assembly 30 and power supply 17, select suitable flow velocity.
In this embodiment, flow-guiding channel can evenly be shunted the cold water passing into, water conservancy diversion, according to hot water (after temperature of cold water rises) floating cold water, automatically tend to supplement principle, low level inlet input cold water, cold water heats up from the first radiating fin and the second radiating fin absorption heat, then flow to high-order liquid outlet and overflow, heat is taken out of.
In contrast to existing LED light fixture, in this embodiment, cold water directly fully contacts with the second radiating fin with the first radiating fin, greatly reduced repeatedly heat sink that thermal source heat produces through multistage medium and measure conduction, improved heat conduction efficiency, the operating temperature of LED lamp group assembly and power supply is maintained within the scope of safe temperature all the time, extended greatly the service life of LED lamp group assembly and power supply.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (8)
1. a LED light fixture, is characterized in that, comprising: heat abstractor (10) and LED lamp group assembly (30), wherein,
Described heat abstractor (10), comprises substrate (11) and cover plate (12), and described substrate (11) and cover plate (12) cover and form the annular seal space with inlet (15) and liquid outlet (16), in described annular seal space, are connected with cooling liquid;
Described LED lamp group assembly (30), is fixed on the outer surface of substrate (11).
2. LED light fixture as claimed in claim 1, is characterized in that, also comprises: be fixed on the power supply (17) of cover plate (12), described power supply (17) has the outer wrapping layer (18) of insulating heat-conductive.
3. LED light fixture as claimed in claim 2, is characterized in that, described cover plate (12) has the storage tank (19) of recessed cooling liquid, and described power supply (17) is positioned at described storage tank (19).
4. LED light fixture as claimed in claim 2, is characterized in that, described outer wrapping layer (18) material is insulating heat-conductive silica gel.
5. the LED light fixture as described in any one in claim 1 ~ 4, it is characterized in that, described substrate (11) has one group of first radiating fin (13) in annular seal space, described cover plate (12) has one group of second radiating fin (14) in annular seal space, described one group of first radiating fin (13) and described one group of second radiating fin (14) alternative arrangement, form a plurality of flow-guiding channels (20) along inlet (15) to liquid outlet (16) direction side by side.
6. LED light fixture as claimed in claim 5, is characterized in that, described heat abstractor (10) further comprises: be separately positioned on two valves (21) that inlet (15) is outside and liquid outlet (16) is outside.
7. LED light fixture as claimed in claim 1, is characterized in that, described cooling liquid is water.
8. LED light fixture as claimed in claim 1, is characterized in that, described LED lamp group assembly (30) is fixedly connected with substrate (11) by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210253754.9A CN103574314B (en) | 2012-07-20 | 2012-07-20 | A kind of LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210253754.9A CN103574314B (en) | 2012-07-20 | 2012-07-20 | A kind of LED lamp |
Publications (2)
| Publication Number | Publication Date |
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| CN103574314A true CN103574314A (en) | 2014-02-12 |
| CN103574314B CN103574314B (en) | 2016-03-16 |
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| CN201210253754.9A Active CN103574314B (en) | 2012-07-20 | 2012-07-20 | A kind of LED lamp |
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Citations (9)
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| CN201119238Y (en) * | 2007-10-31 | 2008-09-17 | 夏波涛 | Heat radiation slice for liquid cooling heat radiator |
| US20090298376A1 (en) * | 2008-05-27 | 2009-12-03 | Ruud Lighting, Inc. | Method for led-module assembly |
| CN201359230Y (en) * | 2008-11-25 | 2009-12-09 | 董丽霞 | LED light fitting |
| CN201368387Y (en) * | 2009-01-15 | 2009-12-23 | 保定电谷科技有限公司 | Integral LED lamp cap |
| US20090316400A1 (en) * | 2008-06-24 | 2009-12-24 | Hon Hai Precision Industry Co., Ltd. | Light emitting diode street light |
| CN101943463A (en) * | 2009-07-08 | 2011-01-12 | 陈文进 | Water heater structure |
| TW201104151A (en) * | 2009-07-24 | 2011-02-01 | Foxconn Tech Co Ltd | Light emitting diode lamp |
| CN202002064U (en) * | 2011-04-19 | 2011-10-05 | 湛江华丽金音影碟有限公司 | Water cooling radiating device for high power LED array |
| CN202812853U (en) * | 2012-07-20 | 2013-03-20 | 湖北凯美能源技术有限公司 | LED lamp |
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2012
- 2012-07-20 CN CN201210253754.9A patent/CN103574314B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201119238Y (en) * | 2007-10-31 | 2008-09-17 | 夏波涛 | Heat radiation slice for liquid cooling heat radiator |
| US20090298376A1 (en) * | 2008-05-27 | 2009-12-03 | Ruud Lighting, Inc. | Method for led-module assembly |
| US20090316400A1 (en) * | 2008-06-24 | 2009-12-24 | Hon Hai Precision Industry Co., Ltd. | Light emitting diode street light |
| CN201359230Y (en) * | 2008-11-25 | 2009-12-09 | 董丽霞 | LED light fitting |
| CN201368387Y (en) * | 2009-01-15 | 2009-12-23 | 保定电谷科技有限公司 | Integral LED lamp cap |
| CN101943463A (en) * | 2009-07-08 | 2011-01-12 | 陈文进 | Water heater structure |
| TW201104151A (en) * | 2009-07-24 | 2011-02-01 | Foxconn Tech Co Ltd | Light emitting diode lamp |
| CN202002064U (en) * | 2011-04-19 | 2011-10-05 | 湛江华丽金音影碟有限公司 | Water cooling radiating device for high power LED array |
| CN202812853U (en) * | 2012-07-20 | 2013-03-20 | 湖北凯美能源技术有限公司 | LED lamp |
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| CN103574314B (en) | 2016-03-16 |
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| C14 | Grant of patent or utility model | ||
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Address after: 430033, No. 20, No. 7 South Central Road, Wuchang District, Hubei, Wuhan, China B06 Patentee after: Changjiang intelligent control technology (Wuhan) Co.,Ltd. Address before: 430033, No. 20, No. 7 South Central Road, Wuchang District, Hubei, Wuhan, China B06 Patentee before: HUBEI KAIMEI ENERGY TECHNOLOGY Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An LED lamp Effective date of registration: 20230206 Granted publication date: 20160316 Pledgee: Bank of China Limited Wuhan Jianghan sub branch Pledgor: Changjiang intelligent control technology (Wuhan) Co.,Ltd. Registration number: Y2023420000020 |
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