Light source provided with differential pressure radiating device
A technology of a heat dissipation device and a differential pressure is applied in the field of light sources that use light-emitting diodes to actuate and emit light, and can solve the problems of temperature failure of the substrate 121, waste heat affecting the normal light-emitting and service life of the light-emitting diodes 122, and shortening of the service life of the light-emitting diodes 122, etc. achieve the effect of avoiding excessive temperature
Inactive Publication Date: 2015-04-29
GREEN POWER RECYCLE
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Problems solved by technology
However, since the light-emitting device 12 mainly based on the light-emitting diode 122 generates light when it operates, it also generates waste heat and affects the normal light emission and service life of the light-emitting diode 122. The light source 1 that emits light by the diode 122 has not considered this heat dissipation problem, and for example, the temperature of the substrate 121 of the light emitting device 12 is too high to cause failure, or the actual service life of the light emitting diode 122 is shortened.
Method used
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[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0019] refer to figure 2 and image 3 , a preferred embodiment of a light source 2 with a differential pressure heat dissipation device in the present invention includes a housing 3, a light emitting device 4, and a differential pressure heat dissipation device 5, which are suitable for existing lamp holders. In this example, Instructions are made with the form of the bulb that is suitable for the existing specification lamp socket.
[0020] The housing 3 has a light-transmitting large-diameter portion 31 that is approximately hemispherical, an extension portion 32 that extends from the outer peripheral edge of the large-diameter portion 31 in an axial and radially tapered manner, and an extension portion 32 away from the A small-diameter portion 33 extending from the large-diameter portion 31, a conductive portion 34 extending from the small-diame...
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The invention discloses a light source provided with a differential pressure radiating device. The light source comprises a housing, a light-emitting device and a differential pressure radiating device, wherein the housing is provided with a large-caliber part capable of transmitting light, an extension part, a small-caliber part, a conductive part, an air inlet unit far from the conductive part and an air vent unit adjacent to the conductive part; the light-emitting device is adjacent to the large-caliber part and is electrically connected with the conductive part, and is actuated to emit light and generate waste heat when electric energy is provided from the outside through the conductive part; the differential pressure radiating device is positioned between the light-emitting device and the housing and used for defining a radiating fin assembly of a cold-air passing region and a hot-air passing region surrounding the cold-air passing region; when the light-emitting device is actuated to generate waste heat, gas with relatively high outside temperature enters from the air inlet unit and generates a differential pressure effect while passing through the radiating fin assembly, so that the waste gas heat is quickly taken away from the air vent unit.
Description
technical field [0001] The invention relates to a light bulb, in particular to a light source which adopts a light emitting diode to operate and emit light. Background technique [0002] refer to figure 1 At present, the light source 1 that uses light-emitting diodes to operate and emit light generally includes a housing 11 and a light-emitting device 12. An extension portion 112 extending axially and tapered in diameter, and a conductive portion 113 extending from the extension portion 112 away from the light-transmitting portion 111, the light-transmitting portion 111, the extension portion 112, and the conductive portion 113 jointly define a set for the The installation space 114 provided by the light emitting device 12, the light emitting device 12 includes a substrate 121 electrically connected to the conductive part 113 and arranged at the junction of the light-transmitting part 111 and the extension part 112, and a plurality of substrates 121 arranged on the substrat...
Claims
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Login to View More IPC IPC(8): F21S2/00F21V29/00F21Y101/02
CPCF21S2/00
Inventor 黄国洪江桂香
Owner GREEN POWER RECYCLE