LED light source device
An LED light source, metal technology, applied in the direction of light source, electric light source, point light source, etc., can solve the problems of difficult to effectively suppress the temperature rise of LED, poor heat transfer performance, unsatisfactory and other problems, achieve less thermal resistance, good heat dissipation performance, The effect of suppressing temperature rise
Inactive Publication Date: 2010-10-27
任文华
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Problems solved by technology
The heat generated by this kind of LED light source device when the LED is working mainly depends on the LED mounting substrate, that is, the PCB board, which is transferred to the radiator through a thermally conductive adhesive, and the heat is first transferred to the mounting substrate and then to the radiator, while the mounting substrate That is, the heat transfer performance of the PCB board itself is poor, so the thermal resistance of this indirect heat conduction is very large, it is difficult to effectively suppress the temperature rise of the LED, and it cannot meet the needs of practical applications.
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[0023] figure 1 It is a schematic cross-sectional view of the LED light source device of the present invention. As can be seen from the figure, the device of the present invention includes: an LED 1 having a first electrode 7 and a second electrode 8; a first metal heat sink 2 in contact with the bottom surface 5 of the LED 1, on the first metal heat sink 2 There are two through holes 6; a second metal heat sink 3, the first electrode of the LED 1 passes through a hole 6 on the first metal heat sink 2 and is fixed to the second metal heat sink 3; a second metal heat sink 3 Three metal heat sinks 4, the second electrode of the LED 1 passes through another hole 6 on the first metal heat sink 2 and is fixed to the third metal heat sink 4; a control circuit 9, its two output lines 12 are respectively connected to The second metal radiator 3 and the third metal radiator 4 are electrically connected, and the external power supply (not shown) can be electrically connected to the con...
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The invention relates to an LED light source device which comprises at least one LED with a first electrode and a second electrode, a first metal heat radiator, at least one second metal heat radiator, at least one third metal heat radiator and a control circuit, wherein the first metal heat radiator is provided with a plurality of penetrated hole sites and in contact with the bottom surfaces of the LEDs; the second metal heat radiators are fixedly connected with the first electrodes of the LEDs; the third metal heat radiators are fixedly connected with the second electrodes of the LEDs; and two output ends of the control circuit are respectively electrically connected with one second metal heat radiator and one third metal heat radiator, and the input ends of the control circuit can be electrically connected with an external power supply so as to obtain electric energy and control the works of the LEDs. The device has good heat radiation property, can effectively suppress the warning up of the LEDs and has high luminous efficacy and long service life.
Description
technical field [0001] The invention relates to an LED light source device, in particular to an LED light source device with improved heat dissipation performance. Background technique [0002] As we all know, LEDs will generate a lot of heat when they work, and if the heat is not dissipated in time and the temperature rise of LEDs is suppressed, the light efficiency and life of LEDs will be seriously affected. In fact, the poor heat dissipation performance of LED light source devices and the temperature rise of LEDs during operation are one of the main technical obstacles for LED light source devices to achieve high luminous efficiency, high power, and long life. [0003] In order to improve the heat dissipation capability and reduce the temperature rise of LEDs, a Chinese patent application with the patent publication number CN 1979906A (application number: 200610163394.8) published on June 13, 2007 discloses an LED light source device. In this kind of LED light source de...
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IPC IPC(8): F21S2/00F21V29/00F21V19/00F21V23/06H01L23/36F21Y101/02F21V29/71F21V29/76F21V29/83
Inventor 任文华
Owner 任文华