Liquid heat-transmitting light emitting diode (LED) lamp
A technology of LED lamps and liquids, applied in the field of LED light sources, can solve the problems of reducing light efficiency, complex structure, hidden safety hazards, etc., and achieve the effects of high light efficiency, light weight and lower junction temperature.
Inactive Publication Date: 2014-08-20
浙江阳光照明灯具有限公司
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Problems solved by technology
At present, in order to reduce the junction temperature of LED lamp beads, the common high-power LED downlights on the market usually use large-area metal kits for heat dissipation. This heat dissipation structure is not only complex in structure, heavy in weight, and high in cost, but also may have certain Potential safety hazard; on the other hand, since the shell of this high-power LED downlight is made of metal materials, in order to consider the safety performance of the whole lamp, an isolated power drive device has to be used, but the isolated power drive device will Reduce the overall lighting effect by about 10%
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[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0025] A liquid heat transfer LED lamp proposed by the present invention, as shown in the figure, includes a light emitting unit 1 , a heat dissipation unit 2 and a driving power supply 3 . The light-emitting unit 1 is mainly composed of a non-metallic shell 11, a reflector lamp cup 12 arranged on the inner front end of the non-metallic shell 11, a metal substrate 13, and a plurality of high-power LED lamp beads 14 arranged on the metal substrate 13. The front edge of the housing 11 is connected with a cover 4, the inner bottom of the reflector lamp cup 12 is connected with the bottom of the metal substrate 13, the cup mouth of the reflector lamp cup 12 is provided with a light-transmitting sheet 15, and the thermal pad of the metal substrate 13 It is directly welded to the thermal pad of the high-power LED lamp bead 14, which can realize ultr...
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The invention discloses a liquid heat-transmitting light emitting diode (LED) lamp. The lamp comprises a shining unit, a radiating unit and a drive power supply, wherein the shining unit mainly consists of a non-metal housing, a metal substrate which is arranged in the non-metal housing and a plurality of high-power LED lamp leads which are arranged on the metal substrate, the radiating unit mainly consists of a non-metal radiating pipe positioning support, a radiating pipe complex, a heat exchanger and a micro-pump assembly, the micro-pump assembly comprises a micro pump installation seat and a micro pump, and the micro pump, the radiating pipe complex and the heat exchanger are connected to from a sealed liquid circle radiating channel. The high-thermal conductivity liquid is filled in the liquid circle radiating channel, the heat which is generated during working of the LED lamp beads is transmitted to the heat exchanger through the metal substrate in the non-metal housing, the high-thermal conductivity liquid is forced to be subjected to cycling convection under the action of the micro pump, the heat which is generated by LED lamp bead ignition points is radiated to the air, the radiating performance is good, the junction temperature of LED lamp beads can be effectively reduced, and high-power and high light efficiency LED lamp products can be produced.
Description
technical field [0001] The invention relates to an LED light source, in particular to an LED lamp with liquid heat transfer. Background technique [0002] As a new type of energy-saving light source, LED (Light Emitting Diode) light source has the characteristics of high light efficiency, high color rendering, low power consumption and long life, so more and more occasions use LED light source instead of traditional Light source for lighting. [0003] High-power LED downlights are more and more popular because they can be widely used in large offices, conference rooms, department stores, supermarkets and specialty stores, laboratories, airports and some residential rooms. At present, in order to reduce the junction temperature of LED lamp beads, the common high-power LED downlights on the market usually use large-area metal kits for heat dissipation. This heat dissipation structure is not only complex in structure, heavy in weight, and high in cost, but also may have certa...
Claims
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IPC IPC(8): F21S2/00F21V29/02F21V23/00F21Y101/02F21K9/237F21V29/56F21V29/83F21V29/89F21Y115/10
Inventor 李阳马正红
Owner 浙江阳光照明灯具有限公司