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Patent Searching and Data


Title:
DRAINAGE PUMP MOTOR AND DRAINAGE PUMP HAVING SAME
Document Type and Number:
WIPO Patent Application WO/2019/111541
Kind Code:
A1
Abstract:
[Problem] To provide: a drainage pump motor which is capable of suppressing damage to a resin member caused by the oil of an oilless bearing, and also capable of suppressing defects caused by press-fitting the oilless bearing; and a drainage pump having said drainage pump motor. [Solution] A drainage pump 1 motor 100, wherein an oilless bearing 160 is press-fit into a ring-shaped partition wall 125 embedded in a resinous stator mold 121 of a stator 120. In addition, a plurality of stress release sections 170 comprising spaces which pass through in the direction of the rotating axis L are provided between the ring-shaped partition wall 125 and the oilless bearing 160.

Inventors:
SATO Katsushi (17-24 Todoroki 7-chome, Setagaya-k, Tokyo 82, 〒1580082, JP)
SATO Hisashi (17-24 Todoroki 7-chome, Setagaya-k, Tokyo 82, 〒1580082, JP)
Application Number:
JP2018/038468
Publication Date:
June 13, 2019
Filing Date:
October 16, 2018
Export Citation:
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Assignee:
FUJIKOKI CORPORATION (17-24, Todoroki 7-chome Setagaya-k, Tokyo 82, 〒1580082, JP)
International Classes:
H02K5/167; F04D1/14; F04D29/00; F04D29/046; F16C23/04; F16C35/02; H02K7/14
Foreign References:
JP2013177864A2013-09-09
JPH0328322U1991-03-20
JPS6253731B21987-11-11
Attorney, Agent or Firm:
OPUS IP LAW FIRM (FORECAST SHINJUKU AVENUE 6F, 5-12 Shinjuku 2-Chome, Shinjuku-k, Tokyo 22, 〒1600022, JP)
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