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.

Date of Patent:
Nov. 07, 2000

Filed:

Feb. 12, 1998
Applicant:
Inventors:

Hideyuki Nishida, Yokohama, JP;

Shunichi Haga, Yokohama, JP;

Ichiro Shimizu, Mitaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F / ; H01F / ;
U.S. Cl.
CPC ...
336 92 ; 336198 ; 336 90 ;
Abstract

A transformer including a bobbin formed by uniting a winding member, which has a primary winding and secondary winding and a bore formed thereon and therein, with a primary winding fixture and secondary winding fixture adjoining the openings of the bore, and a ferromagnetic core having a core portion thereof inserted into the bore and including an enclosure for enclosing the windings is manufactured according to a process including an affixing step of firmly affixing both or either of the primary winding fixture and secondary winding fixture to the ferromagnetic core, an impregnation step of impregnating the transformer with a varnish, and an applying step of applying adhesives. A components-mounted substrate is incorporated in a housing to be immobilized and locked in a direction parallel to the components-mounted surface thereof, in which when an impact load is imposed in a direction substantially orthogonal to the components-mounted surface, the components-mounted substrate is displaced by a given magnitude in order to absorb an impact, and in which a displacement whose magnitude is equal to or larger than the given magnitude is restrained in order to disperse the load.


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