EP 2810359 A2 20141210 - CORONA SHIELD MATERIAL FOR AN ELECTRIC MACHINE
Title (en)
CORONA SHIELD MATERIAL FOR AN ELECTRIC MACHINE
Title (de)
GLIMMSCHUTZWERKSTOFF FÜR EINE ELEKTRISCHE MASCHINE
Title (fr)
MATIÈRE DE PROTECTION ANTI-EFFLUVES POUR UNE MACHINE ÉLECTRIQUE
Publication
Application
Priority
- EP 12161774 A 20120328
- EP 2013055512 W 20130318
- EP 13713768 A 20130318
Abstract (en)
[origin: EP2645540A1] The corona shield material comprises an initially flowable matrix material (23), which is cured in a curing reaction to form a solid, photosensitive initiators (24), which are transferred by an electromagnetic radiation (26) into a reactive state triggering the curing reaction, and an electrically conductive filler (25) that is present in particulate form. The matrix material is curable in a radical or cationic crosslinking mechanism. Each initiator is transferred to the other initiators of different wavelength range of the radiation used to activate in its respective reactive state. The corona shield material comprises an initially flowable matrix material (23), which is cured in a curing reaction to form a solid, photosensitive initiators (24), which are transferred by an electromagnetic radiation (26) into a reactive state triggering the curing reaction, and an electrically conductive filler (25) that is present in particulate form. The matrix material is curable in a radical or cationic crosslinking mechanism. Each initiator is transferred to the other initiators of different wavelength range of the radiation used to activate in its respective reactive state. The initiator has a mass fraction of 1% in the flowable state of the corona shield material. The corona shield material further comprises: an accelerator, which accelerates the curing reaction and changes an activation wavelength of the initiator; a temperature-sensitive initiator, which is convertible by an increase of temperature to its reactive state; and a phosphorus compound as additives. The particles of the filler have an average particle diameter of 10 mu m. The filler is present in an amount of 80 mass%. An independent claim is included for an electrical machine.
IPC 8 full level
H02K 3/40 (2006.01); G03F 7/029 (2006.01); G03F 7/031 (2006.01); G03F 7/038 (2006.01); H01B 1/24 (2006.01); H01B 3/40 (2006.01); H01B 3/44 (2006.01)
CPC (source: EP US)
G03F 7/0047 (2013.01 - EP US); G03F 7/027 (2013.01 - EP US); G03F 7/038 (2013.01 - EP US); H01B 1/24 (2013.01 - EP US); H01B 3/40 (2013.01 - EP US); H02K 3/40 (2013.01 - EP US); H02K 3/42 (2013.01 - US); H05K 9/0079 (2013.01 - US); Y10T 428/31511 (2015.04 - EP US); Y10T 428/31551 (2015.04 - EP US)
Citation (search report)
See references of WO 2013143895A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2645540 A1 20131002; CN 105210270 A 20151230; EP 2810359 A2 20141210; US 2015042195 A1 20150212; WO 2013143895 A2 20131003; WO 2013143895 A3 20141002
DOCDB simple family (application)
EP 12161774 A 20120328; CN 201380017670 A 20130318; EP 13713768 A 20130318; EP 2013055512 W 20130318; US 201314388908 A 20130318