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Patent Searching and Data


Title:
PREPARATION METHOD FOR HIGH-VOLTAGE WINDING, AND HIGH-VOLTAGE WINDING
Document Type and Number:
WIPO Patent Application WO/2024/066824
Kind Code:
A1
Abstract:
A high-voltage winding (130) and a preparation method therefor. The preparation method for the high-voltage winding (130) comprises the following steps: circumferentially winding a wire along the outer peripheral surface of a wire winding body (1310) to form a high voltage coil (1320), and forming taps (2, 3, 4, 5, 6, 7) in the wire winding process; placing the taps (2, 3, 4, 5, 6, 7) in a protective cavity of a tooling connecting member (101), and connecting and fixing the taps (2, 3, 4, 5, 6, 7) to the tooling connecting member (101) to obtain a body to be injected; placing said body into a mold (102) of an injection machine, such that the outer peripheral surface of the high voltage coil (1320) abuts against at least one support auxiliary member (1340) provided on the inner wall of the mold (102); perform injection on the periphery of said body to form high-temperature vulcanized silicone rubber, so as to obtain a high-voltage winding preform provided with a groove (1341) on the surface; filling the groove (1341) of the high-voltage winding preform, so that the high-temperature vulcanized silicone rubber is continuous at the groove (1341); and removing the tooling connecting member (101) to obtain a high-voltage winding (130) of which the taps (2, 3, 4, 5, 6, 7) are exposed to the high-temperature vulcanized silicone rubber. By providing the support auxiliary member (1340), the wire displacement is effectively prevented.

Inventors:
MA BIN (CN)
MA TINGTING (CN)
ZHANG XINXIN (CN)
LIU CHAO (CN)
JIANG JIANFEI (CN)
DONG JIXIN (CN)
LIU JUN (CN)
Application Number:
PCT/CN2023/114604
Publication Date:
April 04, 2024
Filing Date:
August 24, 2023
Export Citation:
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Assignee:
JIANGSU SHEMAR ELECTRIC CO LTD (CN)
International Classes:
H01F27/34; H01B3/28; H01F41/06
Foreign References:
CN115512960A2022-12-23
CN114300255A2022-04-08
JP2009289859A2009-12-10
CN114300254A2022-04-08
CN114300235A2022-04-08
CN114300238A2022-04-08
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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