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:
Jan. 26, 2024
Hanon Systems, Daejeon, KR;
B.m.c Co., Ltd., Anseong-si, KR;
Min Hwan Kim, Daejeon, KR;
Sung Moon Kang, Gwangju, KR;
Young Ki Kim, Gwangju, KR;
Chan Ho Baek, Daejeon, KR;
HANON SYSTEMS, Daejeon, KR;
Abstract
A varnish impregnation method of a stator coil winding. The varnish impregnation method includes: a first step of maintaining an inside of a vacuum chamber to be in a vacuum state; a second step of injecting varnish into a slot of a stator core through a varnish supply hole formed in a lower housing of the varnish impregnation device; a third step of causing an air pressure within the vacuum chamber to come to equilibrium with an external air pressure, discharging the varnish from the vacuum chamber, and transferring the varnish again to the varnish storage tank; a fourth step of stopping the operation of the air pump when the discharge of the varnish from the vacuum chamber is completed; and a fifth step of separating the stator from the varnish impregnation device, withdrawing the stator from the vacuum chamber, and curing the varnish in a curing device.