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:
Feb. 04, 2003
Filed:
Nov. 16, 2000
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A rotor ( ) of a motor is fixed to a rotation shaft ( ) and a stator ( ) is disposed on the outer side. The stator ( ) is provided with a plurality of slots ( ) opening towards an outer periphery of the rotor ( ). The openings of each slot ( ) facing the outer periphery of the rotor ( ) is closed by a cover ( ). A first cooling liquid chamber ( ) is formed facing the opening of the slots ( ) on one end face of the stator ( ). A second cooling liquid chamber ( ) is formed facing the opening of the slots ( ) on another end face of the stator ( ). A supply port ( ) of cooling liquid is provided in the first cooling chamber ( ) and cooling liquid supplied from the supply port ( ) to the first cooling liquid chamber ( ) flows into the second cooling liquid chamber ( ) through the slots ( ). Coils ( ) disposed on each slot ( ) are efficiently and evenly cooled by the provision of members ( A, B, ) that evenly distribute cooling liquid supplied from the supply port ( ) to the respective slots ( ).