H - Electricity
01
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H01H 43/00 (2006.01) G04G 15/00 (2006.01) H05K 1/14 (2006.01) H01M 2/10 (2006.01) H01M 2/20 (2006.01) H05K 3/00 (2006.01) H05K 3/36 (2006.01)
Patent
CA 2292680
A time switch includes a circuit board equipped with a time switch circuit operated by a commercial power source, a battery board to which a back-up battery for supplying a back-up power to the circuit board in case of an interruption of a power supply from the commercial power source is mounted, and a casing in which the circuit board and the battery board are mounted. The battery board is a member separated from the circuit board, or integrally formed with the circuit board by way of an easy-to-break portion having a relatively weak mechanical strength. Thus, the battery board can be detached from the circuit board so that the back-up battery is disposed apart from the circuit board.
Matsuda Masanori
Muroi Hiroaki
Yanagida Kazuo
Asahi National Lighting Co. Ltd.
Kirby Eades Gale Baker
Matsushita Electric Works Ltd.
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