Segment Conductors, Stator, Rotating Electrical Machine, And Vehicle And Method Of Manufacturing The Segment Conductors
A technology for rotating electric machines and manufacturing methods, applied in the direction of manufacturing motor generators, shape/style/structure of winding conductors, electrical components, etc., capable of solving problems such as cracks or expansion, large internal stress in bending parts, etc., to prevent cracks, resistance small effect
Inactive Publication Date: 2016-09-07
COPAL CO LTD
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Problems solved by technology
[0009] In addition, in order to insert the U-shaped conductor into the slot of the stator core, when the pair of legs of the U-shaped conductor are twisted and opened, a large internal stress may be generated in the bent part and the like, and a large Strain, hardening, etc., which can lead to cracks or expansion, etc., which are not good
Method used
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Embodiment Construction
[0059] The segmented wire (segmented wire) according to the embodiment of the present invention is a conductor element of a coil that is distributed and wound on the stator core of a rotating electrical machine. The segment wire has a pair of straight conductor parts and a curved conductor part connecting one end sides of the pair of straight conductor parts to each other, and the pair of straight conductor parts and the curved conductor part are formed by press molding. The stator of the electric rotating machine has a structure in which a plurality of segmented conductive wires are distributed and wound around the stator core. Also, the vehicle has the rotary electric machine.
[0060] The segment wires have a rectangular cross section, and have a pair of straight conductor portions and a curved conductor portion connecting one end sides of the pair of straight conductor portions to each other, and are disposed so as to be exposed from the stator core including the curved co...
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The present invention provides a segment conductor which is small in internal stress and prevents cracks, a stator, a rotating electrical machine, and a vehicle and a method of manufacturing the segment conductor. The segment conductor is a conductive element of a coil wound in a distributed winding in a stator core of a rotating electric machine and is provided with a pair of straight conductor portions and a bent conductor portion that connects together one end side of the pair of straight conductor portions, wherein the straight conductor portions and the bent conductor portion are formed by punching molding. In addition, by the punching molding, one part of the segment conductor is formed so as to be thinner than another part. Specifically, a part that is exposed from the stator core is formed, through press forming, so as to be thinner than a part that is contained in a slot of the stator core. The stator has a structure wherein a plurality of segment conductors are disposed in a distributed winding in the stator core. The rotating electric machine is equipped with this stator. The vehicle is equipped with this rotating electric machine.
Description
technical field [0001] The invention relates to a segmented wire, a stator, a rotating electrical machine, a vehicle and a method for manufacturing the segmented wire. Background technique [0002] There is known a loose-leaf-shaped conductor sequentially joined type coil of a rotating electric machine, which is formed by inserting a loose-leaf-shaped conductor (approximately U-shaped conductor) from the front side through a plurality of coils formed in a cylindrical stator core. Grooves are cut so that the front ends of the loose leaf-shaped conductors protruding toward the rear side of the stator core are sequentially connected to the front ends of other loose leaf-shaped conductors (for example, refer to Patent Document 1). [0003] In addition, a rotating electrical machine is known, which is composed of a stator core and a stator coil in which a plurality of stator cores are arranged in the circumferential direction and has slots, and a stator coil is formed by connecti...
Claims
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IPC IPC(8): H02K3/04H02K3/50H02K15/04
CPCH02K3/04H02K3/50H02K15/0421H02K2213/03H02K3/12
Inventor 渡边正和深作良范岩濑将人国井弘毅长泽博文小池信二
Owner COPAL CO LTD