Relay Contacts of Multi-Electrodes with Timely Controlled Operation

Yu YONEZAWA  Noboru WAKATSUKI  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E87-C   No.8   pp.1324-1328
Publication Date: 2004/08/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on IS-EMD2003--Recent Technical Trend of Electro-Mechanical Devices)
Category: Contactor and Relay
Keyword: 
arc suppression,  electric contacts,  switching contacts,  energizing contacts,  relay,  

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Summary: 
We propose a new electric contact device that greatly improves arc discharge characteristics. Electric contact functions are divided into an energizing operation and a switching operation. A capacitor is connected in series to a contact for switching contact. Using two conventional relay contacts, no arc operation is confirmed for a 42 V/3 A break operation. Contact resistances are measured over many operations, and the surfaces of electrodes are observed. A chip capacitor is arranged at one side of the contact electrodes of a twin relay, confirming the possibility of miniaturization.