US Patent 7208678 Electronic component housing structural body

An electronic component housing structural body includes a first housing body accommodating electronic components and a second housing body accommodating electronic components. Fitting plane of the first and second housing bodies include a liquid passage area and a communicating passage area. The liquid passage area includes a cooling passage in which cooling liquid flows. The communicating passage area includes a communicating passage that connects housing chambers of the first and second housing bodies. Furthermore, a single sealing member is disposed on the fitting plane to independently surround and seal the liquid passage area and the communicating passage area.