The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 15, 2014
Filed:
Mar. 24, 2011
Hitoshi Yoshida, Otsu, JP;
Hidekazu Yoshioka, Yawata, JP;
Takahiro Sakai, Yasu, JP;
Yoshihiro Shimizu, Moriyama, JP;
Toshio Yamashita, Moriyama, JP;
Hitoshi Yoshida, Otsu, JP;
Hidekazu Yoshioka, Yawata, JP;
Takahiro Sakai, Yasu, JP;
Yoshihiro Shimizu, Moriyama, JP;
Toshio Yamashita, Moriyama, JP;
OMRON Corporation, Kyoto, JP;
Abstract
A contact includes a plate with a width that ranges from 0.1 mm or more to 1 mm or less, and a stress concentrated place, where a surface roughness (Ra) on the stress concentrated place is 0.2 μm or less. When samples whose surface roughness Ra is 0.040 μm, 0.080 μm, 0.120 μm, and 0.180 μm were used to study a number of repetitive fracture times, as the surface roughness Ra was smaller, the number of repetitive fracture times became larger. Particularly, it is found that the surface roughness Ra may be 0.200 μm or less in order to satisfy 3000 times as a number of operating times of the battery connector. Further, the surface roughness Ra may be 0.080 μm or less in order to satisfy 6000 times as the number of operating times when a safety factor is 2.