Collision energy analysis of miniature electromagnetic relay with permanent magnet

Issue title: Selected Papers from the 15th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2011)

Article type: Research Article

Authors: Yamaguchi, Tadashi^a | Kawase, Yoshihiro^{a; *} | Suzuki, Satoshi^a | Koyanagi, Wataru^a | Hirata, Katsuhiro^b | Ota, Tomohiro^c

Affiliations: [a] Department of Information Science, Gifu University, Yanagido, Gifu, Japan | [b] Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University, Osaka, Japan | [c] Panasonic Electric Works, Osaka, Japan

Correspondence: [*] Corresponding author: Yoshihiro Kawase, Department of Information Science, Gifu University 1-1, Yanagido, Gifu 501-1193, Japan. Tel.: +81 58 293 2712; Fax: +81 58 293 2764; E-mail: kawase@gifu-u.ac.jp

Abstract: Recently, miniature electromagnetic relays are required to have high reliability. The reliability of the relay is lost by numerous collisions of a contact. Therefore, we calculate the collision energy of a miniature electromagnetic relay with a permanent magnet through the dynamic characteristics analysis using the three-dimensional finite element method (3-D FEM). The effects of the material of the armature and the number of coil turns on the collision energy are numerically clarified.

Keywords: Finite element method, electromagnetic relay, collision energy

DOI: 10.3233/JAE-2012-1525

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 39, no. 1-4, pp. 657-664, 2012