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:
Mar. 25, 2014
Filed:
Apr. 25, 2012
Takeshi Hirakawa, Machida, JP;
Takeshi Hirakawa, Machida, JP;
Dai-Ichi Seiko Co, Ltd., Kyoto-shi, JP;
Abstract
Instability of an electric connection state due to solder-wicking from a board connecting part of an electrically-conductive shell can be prevented with a simple configuration. A recessed part recessed toward a fixed contact and a movable contact is provided in the board connecting part of the electrically-conductive shell attached to an insulating housing. An excessive amount of a solder material or flux that is used at the board connecting part of the electrically-conductive shell and tries to rise along the wall surfaces of the board connecting part or the electrically-conductive shell is stored in the recessed part. The acting force of the rise is reduced by a reverse-tapered inclined surface constituting a wall surface of the recessed part. Furthermore, the length of the rise of the solder material and flux is extended by a curved wall surface of the recessed part. Thus, so-called solder-wicking is configured to be prevented well.