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Title:
AUTOMATIC DISCHARGE ELEMENT FOR OVERHEATED BATTERY
Document Type and Number:
Japanese Patent JPH11176303
Kind Code:
A
Abstract:

To improve a battery safety by discharging a battery in the case of an abnormal increase in a battery temperature, and controlling such a trouble that electrolyte solution is ejected.

This automatic discharge device 1A assembled in a battery case is provided with an operation conductive element 4 for leading a circuit at a prescribed temperature, and a discharge element 3 connected in parallel to the battery the operation conductive element 4. In the operation conductive element 4, a coil spring 45 is disposed as an elastic means for making in an initial condition a condition in which elastically energizing motion is suppressed by interposing a temperature sensor 46, and the circuit is led by moving a contact 43 actuated by the elastically energizing motion of the coil spring 45 released by fusion of the temperature sensor 46 at the time of over-heat. While, a operation-switching element is provided so as to switch over the conductive circuit to an operation conductive circuit from an initial conductive circuit at a prescribed temperature, and the initial conductive circuit is connected in series to the battery, and the operation-conductive circuit is connected in parallel to the battery through the discharge element 3.


Inventors:
Nagaoka, Sumiichi
Application Number:
JP1997000340081
Publication Date:
July 02, 1999
Filing Date:
December 10, 1997
Export Citation:
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Assignee:
NAGAOKA SUMIICHI
International Classes:
H01H37/32; H01M2/20; H01M2/34; (IPC1-7): H01H37/32; H01M2/20; H01M2/34
Attorney, Agent or Firm:
水野 博文



 
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