公开(公告)号：US20180258313A1

公开(公告)日：2018-09-13

申请号：US15761140

申请日：2015-10-08

申请人： MITSUBISHI ELECTRIC CORPORATION

发明人： Naoki YASUDA ,  Shigeyuki YAMAMOTO ,  Toshifumi KANRI ,  Takahiro TSUTSUMI ,  Masashi ONO ,  Kosuke SANO ,  Yukio HIDAKA

IPC分类号： C09D163/00 ,  H02K3/30 ,  H02K15/12

CPC分类号： C09D163/00 ,  C08G59/00 ,  C08G59/1466 ,  C08G59/68 ,  C08J3/24 ,  C08K5/14 ,  C08L33/04 ,  C08L63/00 ,  C09D163/10 ,  H01B3/40 ,  H02K3/30 ,  H02K3/44 ,  H02K7/14 ,  H02K15/12 ,  C08K5/0025

摘要： The present invention provides a solvent-free varnish composition, including: a thermosetting resin (A) having two or more (meth)acryloyl groups in a molecule thereof; a thermosetting resin (B) having one or more epoxy groups in a molecule thereof; a monofunctional vinyl-based monomer having an ether bond or an ester bond; an organic peroxide having a 10-hour half-life temperature of 40° C. or more; and a curing catalyst for an epoxy resin, in which a mixed resin of the thermosetting resin (A) and the thermosetting resin (B) has an epoxy equivalent of from 500 to 5,000. The solvent-free varnish composition can be used as an insulating varnish that shows a small energy loss and requires a short curing time in its curing treatment step, and that provides a cured product that barely causes the precipitation of an oligomer or the like even when exposed to a refrigerant-based environment containing a refrigerant and a refrigerating machine oil under high temperature and high pressure.

公开(公告)号：US20160329123A1

公开(公告)日：2016-11-10

申请号：US15110318

申请日：2014-11-13

申请人： MITSUBISHI ELECTRIC CORPORATION

发明人： Takahiro MABUCHI ,  Shigeyuki YAMAMOTO ,  Makoto TSUKIJI ,  Hiroshi SAKO

IPC分类号： H01B3/04 ,  H02K3/30 ,  H02K15/10 ,  C09J163/00 ,  H01B3/18 ,  H01B19/04 ,  H01B3/32 ,  H02K1/04 ,  H02K15/12

CPC分类号： H01B3/04 ,  C09J163/00 ,  C09J2401/006 ,  H01B3/185 ,  H01B3/32 ,  H01B19/04 ,  H01F5/06 ,  H02K1/04 ,  H02K3/30 ,  H02K3/40 ,  H02K15/10 ,  H02K15/12

摘要： The insulating tape of the present invention includes a mica layer containing mica, a reinforcing layer laminated on the mica layer and containing a filler and a fiber reinforcing material, and a cellulose derivative layer laminated on the reinforcing layer. The cellulose derivative layer contains a cellulose derivative in which one or more hydroxyl groups in the glucose units are substituted with a functional group such as —CH2CH2OH or —(CH2CH2O)pH (in the formula, p is any repeating number greater than 0 up to 50). The weight per unit area of the mica ranges from 100 g/m2 to 200 g/m2. The filler has a maximum particle size of 100 μm or smaller and a weight per unit area ranging from 10 g/m2 to 50 g/m2. The present invention can provide an insulating tape that can form a stator coil insulating layer with high thermal conductivity, with no outflow of a filler supported beforehand on the insulating tape to the exterior during production of the stator coil, and that can enhance bonding strength between portions of the insulating tape.

摘要翻译： 本发明的绝缘胶带包括含有云母的云母层，层叠在云母层上并含有填料和纤维增强材料的增强层和层叠在增强层上的纤维素衍生物层。 纤维素衍生物层含有纤维素衍生物，其中葡萄糖单元中的一个或多个羟基被诸如-CH 2 CH 2 OH或 - （CH 2 CH 2 O）pH的官能团取代（在该式中，p是大于0的任何重复数，直到 50）。 云母的单位面积重量为100g / m 2〜200g / m 2。 填料的最大粒径为100μm以下，每单位面积的重量为10g / m 2〜50g / m 2。 本发明可以提供一种能够形成具有高导热性的定子线圈绝缘层的绝缘带，在定子线圈的制造期间，绝缘带上预先支撑在外部的填料不会流出，并且可以增强 绝缘带的一部分。

公开(公告)号：US20150349599A1

公开(公告)日：2015-12-03

申请号：US14652231

申请日：2013-12-25

申请人： MITSUBISHI ELECTRIC CORPORATION

发明人： Shigeyuki YAMAMOTO ,  Kozue ISOZAKI ,  Kazuki KUBO ,  Atsuhiko FUNAKI

IPC分类号： H02K3/30 ,  H02K3/32 ,  H02K15/02

CPC分类号： H02K3/30 ,  H02K3/32 ,  H02K3/34 ,  H02K15/026 ,  Y10T29/49011

摘要： A stator coil for a rotating electrical machine, the stator coil including a stator iron core and a coil formed by winding an enamel wire around a slot of the stator iron core, in which the enamel wire is covered with a cured product of a first insulating varnish containing a polyester resin and the coil is covered with a cured product of a second insulating varnish containing an epoxy acrylate resin. The stator coil for a rotating electrical machine has an insulating layer with excellent adhesive strength to prevent thermal degradation of its enamel wire and has excellent dielectric strength properties retained for an extended period of time.

摘要翻译： 一种用于旋转电机的定子线圈，所述定子线圈包括定子铁芯和线圈，所述线圈通过绕定子铁芯的狭槽缠绕搪瓷线而形成，其中所述搪瓷线被第一绝缘体的固化产物覆盖 含有聚酯树脂的清漆和线圈被含有环氧丙烯酸酯树脂的第二绝缘漆的固化产物覆盖。 用于旋转电机的定子线圈具有绝缘层，其具有优异的粘合强度，以防止其搪瓷线的热劣化，并且具有优异的介电强度性能，其保持较长时间。