Motor attaching structure and motor attaching method

Patent metadata

Field	Value
Publication number	US-12308713-B2
Application number	US-202318161950-A
Country	US
Kind code	B2
Filing date	Jan 31, 2023
Priority date	Sep 18, 2020
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

A motor attaching structure and a motor attaching method capable of preventing vibration from occurring are provided. A shaft holding a rotor of a motor rotatable thereon is fixed to a first holder. An annular second holder holds a core serving as a stator of the motor with a peripheral portion thereof being arranged between a case and the first holder. Screws to be used as fixing members fix the case, the first holder, and the second holder integrally to each other. The second holder further includes a holding portion which holds the stator and an absorbing portion located between the peripheral portion and the holding portion and possessing a thickness less than the peripheral portion.

First claim

What is claimed is:

1. A motor attaching method comprising:
preparing, a case, a first holder to which a shaft holding a rotor of a motor rotatable thereon is fixed, and an annular second holder including a holding portion configured to hold a stator of the motor, and an absorbing portion located between the holding portion and a peripheral portion thereof and possessing a thickness less than the peripheral portion;
arranging the second holder between the case and the first holder and arranging the shaft at a central part of the second holder;
inserting a first portion of a jig between the shaft and the stator and inserting a second portion of the jig between the shaft and the case; and
fixing, at a circumferential part of the first holder, the case, the first holder, and the second holder to each other with fixing members.

2. The motor attaching method of claim 1 , wherein
the case includes a duct possessing a pipe-like shape on a side surface thereof, part of one end of the duct is made to communicate with the inside of the case, the second holder includes a lid body on a side surface thereof, and the one end of the duct is covered with the lid body.

3. The motor attaching method of claim 1 , wherein
the second holder includes a first concave portion configured to arrange a printed board correspondingly to the absorbing portion.

4. The motor attaching method of claim 3 , wherein
the second holder includes a plurality of second concave portions on the peripheral portion, and the case includes a plurality of protrusions correspondingly to the plurality of second concave portions of the second holder.

Assignees

• Nidec Copal Electronics Corp

Inventors

• Nakada Yuki
• Matsushita Hiroki
• Tobinai Yasuhiro
• Inoguchi Takatoshi

Classifications

• H02K5/20

  with channels or ducts for flow of cooling medium · CPC title

• H02K15/14 Primary

  Casings; Enclosures; Supports · CPC title

• H02K5/24 Primary

  specially adapted for suppression or reduction of noise or vibrations · CPC title