Patent · US Active

Self-adhesive slot-closing device for an electric machine

US10218238B2 · kind B2 · utility

0Cited by

3References

30Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

André Grübel · Fürth, DE
Dieter Schirm

Key dates

Filing date	Jan 29, 2016
Grant date	Feb 26, 2019
Priority date	—
Expiry date	Jan 29, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09J2301/50
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A slot-closing device for closing a slot in a stator or a rotor of an electric machine includes a closure element which contains a ferromagnetic material. An adhesive layer disposed on the closure element is designed to expand and harden when heated. The adhesive layer contains a thermally activatable blowing agent configured as an expansion element which contains a closed cavity filled with gas. The cavity is partially enclosed by a thermoplastic resin in the expansion element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.