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1. (GB2531880) Rotor Slot Liners

Office : United Kingdom
Application Number: 201514752 Application Date: 19.08.2015
Publication Number: 2531880 Publication Date: 04.05.2016
Publication Kind : B
IPC:
H02K 3/34
H02K 3/30
H02K 15/02
H02K 15/10
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
K
DYNAMO-ELECTRIC MACHINES
3
Details of windings
32
Windings characterised by the shape, form, or construction of the insulation
34
between conductors or between conductor and core, e.g. slot insulation
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
K
DYNAMO-ELECTRIC MACHINES
3
Details of windings
30
Windings characterised by the insulating material
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
K
DYNAMO-ELECTRIC MACHINES
15
Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing dynamo-electric machines
02
of stator or rotor bodies
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
K
DYNAMO-ELECTRIC MACHINES
15
Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing dynamo-electric machines
10
Applying solid insulation to the windings, the stator, or the rotor
CPC:
H02K 3/345
H02K 3/30
H02K 15/10
H02K 3/34
H02K 15/024
Applicants: GEN ELECTRIC
Inventors: WEI ZHANG
XIAOCHUAN JIA
CHARLES SIGLER
XIAOMEI FANG
HAO HUANG
DAVID DIMITRI KARIPIDES
Priority Data: 201414471306 28.08.2014 US
Title: (EN) Rotor Slot Liners
Abstract: front page image
(EN) A slot liner 300 for a rotor core 308 includes a metallic support member 340 and a coating 330. The coating 330 is disposed on at least one side of the metal support member, and includes a mixture of a filler 320 and a polyimide resin 310. The filler is a high thermal conductivity electrical insulating (HTCEI) filler, and includes particles of at least one of boron nitride, aluminium nitride (aluminum nitride), or a diamond material. Particle size may be between 100 nanometres and 300 nanometres or 10 nanometres and 100 microns and the polyimide resin comprises between 50 and 65 percent of the coating by weight. The support member may be of 316 grade stainless steel heat treated to provide a soft temper. The resin may be cured in a vacuum oven and may transform from an initial form at least including a polyimide precursor (e.g. polyamic acid) to a final form at least including a polyimide resin. An insulating tape 370 covers the edge 360 of the uncoated area of support to insulate it from windings 390. The stainless steel support may be pre-treated by washing with an alkali material and rinsing with de-ionised water.
Also published as:
FR3025368