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Title:
SWITCHING CIRCUIT AND POWER SUPPLY DEVICE
Document Type and Number:
Japanese Patent JP2018082541
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a switching circuit having a protection switch that operates at arbitrary temperature and a power supply device.SOLUTION: A switching circuit interposed in an electric wire that connects a plurality of batteries includes a semiconductor switch for turning on/off connection between batteries and a protection switch that is connected with the semiconductor switch in parallel. The protection switch includes respective terminal pairs connected with the electric wire and a conductive plate in which a plurality of conductive members having different thermal expansion coefficient are bonded. The conductive plate deforms so as to connect between the terminals as temperature of the semiconductor switch increases and turns on connection between power sources.SELECTED DRAWING: Figure 2

Inventors:
MORIOKA HIDEO
NAKAMURA ARINOBU
Application Number:
JP2016222506A
Publication Date:
May 24, 2018
Filing Date:
November 15, 2016
Export Citation:
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Assignee:
AUTO NETWORK GIJUTSU KENKYUSHO KK
SUMITOMO WIRING SYSTEMS
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
H02H5/04; H02J1/00; H02J7/00; H03K17/14
Attorney, Agent or Firm:
Hideno Kono
Tono Kono



 
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