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Patent Searching and Data


Title:
EXPLOSION-PROOF ELECTRIC APPARATUS AND CHARGER THEREOF
Document Type and Number:
Japanese Patent JPH0731065
Kind Code:
A
Abstract:

PURPOSE: To provide a small-sized, light-weight explosion-proof electric apparatus in which replacement of a battery is not required and which is not necessary to be opened or closed to be charged and a charger thereof.

CONSTITUTION: When a core 9 is externally inserted into a coil embedded in a housing 6 of an explosion-proof type flash light 1 at the time of charging and a coil wound partly on the core 9 is energized by a constant-voltage source 11, a change in a magnetic flux occurs in the core 9, and a voltage is induced in the coil embedded in the housing 6. The induced voltage is rectified by a full-wave rectifier provided in the housing 6 to charge a storage battery provided in the housing 6.


Inventors:
KASAMA ICHIRO
SHINOHARA MATSUO
TAKEDA KAZUYOSHI
YAMASHITA AKIRA
Application Number:
JP1993000196995
Publication Date:
January 31, 1995
Filing Date:
July 14, 1993
Export Citation:
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Assignee:
TOKYO GAS CO LTD
International Classes:
H01F38/14; H02J7/00; H02J17/00; (IPC1-7): H02J7/00; H01F38/14
Attorney, Agent or Firm:
鈴木 弘男