发明授权
US07244178B2 Communication device, cooling fan unit, and operation control method for the cooling fan unit
有权
通风设备,冷却风扇单元以及冷却风扇单元的运行控制方法
- 专利标题: Communication device, cooling fan unit, and operation control method for the cooling fan unit
- 专利标题(中): 通风设备,冷却风扇单元以及冷却风扇单元的运行控制方法
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申请号: US10740124申请日: 2003-12-17
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公开(公告)号: US07244178B2公开(公告)日: 2007-07-17
- 发明人: Satoshi Ueda , Naoya Yamazaki , Kazuhiro Iino , Takashi Shirakami , Yoshiaki Tada
- 申请人: Satoshi Ueda , Naoya Yamazaki , Kazuhiro Iino , Takashi Shirakami , Yoshiaki Tada
- 申请人地址: JP Kawasaki
- 专利权人: Fujitsu Limited
- 当前专利权人: Fujitsu Limited
- 当前专利权人地址: JP Kawasaki
- 代理机构: Katten Muchin Rosenman LLP
- 优先权: JP2002-366144 20021218
- 主分类号: H05K5/00
- IPC分类号: H05K5/00
摘要:
A communication device which has high cooling efficiency and can be reduced in size and weight. The communication device in which a plurality of electronic circuit boards are mounted to a back wiring board (BWB) includes a casing containing the electronic circuit boards as a unit, an intake fan unit for introducing air into the casing to cool the electronic circuit boards, and a discharge fan unit having a plurality of blower fans each arranged such that air intake and discharge directions thereof form an angle of nearly 90 degrees, the blower fans discharging the air introduced into the casing. Combined use of an axial fan and the blower fans permits air to be introduced into and discharged from the casing from rear and front sides, respectively, of the casing, whereby spaces that the fan units occupy in the communication device can be reduced.