| 摘要 |
PROBLEM TO BE SOLVED: To provide a portable electronic appliance wherein an external pressure is so applied hardly to a circuit board mounted with electronic components which is integrated into its thin-walled/light outer-block housing as to prevent the solder peeling and the cracking, etc. of the circuit board. SOLUTION: The portable type electronic appliance has a box-form outer-block housing 4 and has a circuit board 1 fastened to the outer-block housing 4 only by the outer peripheries of the side surfaces of the outer-block housing 4. The fastening portions of the circuit board 1 are so concentrated to at least the half scope of the whole of the plane of the circuit board 1 that it is nearly fastened to the outer-block housing 4, i.e., it has a floating structure. Therefore, even when so applying a pressure to the outer-block housing 4 as to deform it, the distortion of the circuit board 1 can be made small. COPYRIGHT: (C)2007,JPO&INPIT
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