| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that an O-ring is generally used as a water-proof mechanism between casings of underwater appliance, on the other hand, in order to prevent deterioration due to heat from an LED light emitter used for lighting, aluminum excellent in thermal conductivity, or the like is generally used as heat sink for heat release and, therefore, water penetration to an inner part of the casing due to O-ring deterioration, sea water corrosion of aluminum, galvanic corrosion or the like occurs.SOLUTION: A method of performing adhesion by using two or more adhesives having different characteristics as water-proof mechanism between casings is used and, as a substitute of heat sink made of aluminum excellent in thermal conductivity, heat sink made of high heat-conductive resin (thermoplastic resin which contains filler having thermal conductivity) is used. |
