US Patent 7265466 Electrical motor and fluid pump using the same

Patent 7265466 was granted and assigned to Denso on September, 2007 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Denso

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7265466

Patent Inventor Names

Keiichi Yamashita0

Motoya Ito0

Date of Patent

September 4, 2007

Patent Application Number

11028534

Date Filed

January 5, 2005

Patent Primary Examiner

‌

Dang Le

Patent abstract

An electrical motor includes a commutator attached to one side of an armature in an axial direction, and a cover structure member attached to the other side of the armature. The cover structure member includes a cover and plural terminals protruding from an outer peripheral portion of the cover toward the armature. In the electrical motor, by attaching the cover structure member to the armature, the other side of the armature in the axial direction is covered by the cover, and the terminals of the cover structure member are fitted to terminals of coils of the armature. Generally, the cover structure member is made of metal. Therefore, the cover structure member is attached to the armature to have a clearance between a through hole portion of the cover and a shaft, so that the cover is electrically insulated from the shaft.