| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic appliance case body capable of sufficiently demonstrating waterproof and dustproof effects without the need of extremely high-grade airtightness, suppressing dew condensation inside a tightly sealed case body, eliminating the need of a heat exchanger, improving maintainability, demonstrating the waterproof and dustproof effects at the time of maintenance and suppressing limitation in terms of an appearance design while taking measures against the sunlight. SOLUTION: The electronic appliance case body is constituted of an individual tightly sealed module box 4 individually and tightly sealing electronic components loaded with electronic appliances for respective functions, an electronic unit 1 composed of a waterproof case body 3 having a waterproof/ dustproof function and having a water discharge hole 15, where the individual tightly sealed module box 4 is loaded, and an exterior case body 2 shielding the sunlight, to which the appearance design is executed. On the back surface of the waterproof case body 3, a heat sink 11 radiating the heat of the electronic component, a duct 20 for forcibly air-cooling the heat sink 11 and an external waterproof fan 14 are provided. COPYRIGHT: (C)2003,JPO
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