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1. (US20090109620) HEAT-DISSIPATING DEVICE OF PORTABLE ELECTRONIC APPARATUS

专利局 : 美国
申请号: 11930864 申请日: 31.10.2007
公布号: 20090109620 公布日: 30.04.2009
公布类型: A1
国际专利分类:
H05K 7/20
H 电学
05
其他类目不包含的电技术
K
印刷电路;电设备的外壳或结构零部件;电气元件组件的制造
7
对各种不同类型电设备通用的结构零部件
20
便于冷却、通风或加热的改进
申请人:
发明人: WANG Cheng-Tu
Liao Pang-Hung
Lai Kuan-Ming
代理人: HDLS Patent &; Trademark Services
优先权数据:
标题: (EN) HEAT-DISSIPATING DEVICE OF PORTABLE ELECTRONIC APPARATUS
摘要: front page image
(EN)

A heat-dissipating device of a portable electronic apparatus includes a heat-conducting plate disposed on a heat-generating element. One end of a heat-conducting pipe is disposed on the heat-conducting plate, and the other end of the heat-conducting pipe is disposed on a surface of a power generator to form a high-temperature source. The opposite surface of the power generator is fixedly disposed on a heat-dissipating body to form a low-temperature source. A heat-dissipating fan is provided on one side of the heat-dissipating body. The positive and negative lines of the heat-dissipating fan are electrically connected to the positive and negative lines of the power generator. Via the above arrangement, after the heat-conducting plate conducts the heat source to the heat-conducting pipe to perform a heat exchange, the heat source is then conducted to the other end of the heat-conducting pipe, so that the surface of the power generator contacting the end of the heat-conducting pipe becomes a high-temperature source, while the other surface acts as a low-temperature source. Thus, the heat due to the temperature difference can be converted into electricity correspondingly, thereby providing the necessary power for the operation of the heat-dissipating fan. Therefore, a self-powered heat-dissipating device can be achieved.