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. 03, 2026
Filed:
Sep. 09, 2021
Hitachi Astemo, Ltd., Hitachinaka, JP;
Takaki Itaya, Hitachinaka, JP;
Noriyuki Maekawa, Hitachinaka, JP;
Hideaki Goto, Hitachinaka, JP;
Shigehisa Aoyagi, Hitachinaka, JP;
Takashi Hirao, Hitachinaka, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
An object of the present invention is to provide an inverter integrated motor that can effectively cool a power module of an inverter portion. An inverter portionis connected to a motor portion and includes a power modulethat converts a DC power into an AC power, a first flow path forming bodythat is provided between a motor and the power moduleand forms a first flow path, and a second flow path forming bodythat is disposed on a side opposite a side of the first flow path forming body(side of the motor) over the power moduleand forms a second flow path. The first flow path forming bodyand second flow path forming bodyare formed so that a flow rate of a refrigerant Fflowing in the first flow path forming bodyis greater than a flow rate of a refrigerant Fflowing in the second flow path forming body