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Wire connection method for rotary electric machine, method for manufacturing rotary electric machine, wire connection structure for rotary electric machine, and rotary electric machine

A technology of rotating electrical machines and wiring methods, applied in the shape/style/structure of winding conductors, manufacturing motor generators, electromechanical devices, etc., can solve problems such as output reduction, reactive power loss, copper loss, etc., to suppress circulating current Effect

Active Publication Date: 2020-08-11
ODAWARA ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Most of the circulating current is reactive current which causes reactive power loss (e.g. reduced output of motor) and copper loss

Method used

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  • Wire connection method for rotary electric machine, method for manufacturing rotary electric machine, wire connection structure for rotary electric machine, and rotary electric machine
  • Wire connection method for rotary electric machine, method for manufacturing rotary electric machine, wire connection structure for rotary electric machine, and rotary electric machine
  • Wire connection method for rotary electric machine, method for manufacturing rotary electric machine, wire connection structure for rotary electric machine, and rotary electric machine

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Effect test

Embodiment Construction

[0050] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0051] First, refer to Figure 1 to Figure 10 The first embodiment is described.

[0052] figure 1 and figure 2 The stator 2 having the wiring structure of the electric rotating machine according to the present embodiment is shown. figure 1 shows the entire stator 2, and figure 2 The coil end CE side of the stator 2 is shown.

[0053] The stator 2 includes a cylindrical core 6 having a plurality of circumferentially arranged slots 4 and coils 8 for three phases (U phase, V phase, W phase) by inserting U-shaped coil segments into the slots 4 and formed by connecting the ends of the coil segments in their insertion direction according to a predetermined pattern. The coil 8 has a six-layer structure.

[0054] Each coil segment is inserted from the CE side of the coil end, and the end side of the insertion direction (i.e. figure 1 End portions of the illustrate...

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Abstract

In the present invention, coil segments of the same phase are inserted in each set of three slots that are continuous in the circumferential direction. If the slots of each of the three-slot sets arereferred to as A, B, and C, six of the sets are referred to as U1-U6, and a slot y of a set Ux is referred to as a slot Uxy, a coil starting from a slot U1A is wired so as make a single circuit arounda stator while sequentially passing through slots U1A-U2B-U3B-U4C-U5C-U6A, and is connected to a slot U1A of the next circuit. In this case, a coil segment having a large bridging width is used for connection of U1A-U2B and U3B-U4C, while a coil segment having a small bridging width is used for connection of U5C-U6A. This configuration enables suppression of a circulating current when a rotary electric machine is configured such that coil segments of the same phase are inserted in each set of three slots that are continuous in the circumferential direction.

Description

technical field [0001] The present invention relates to a wiring method and a wiring structure for a rotating electric machine such as a motor or a generator, and more particularly, to a wiring method for a three-phase (U-phase, V-phase, W-phase) A wiring method and a wiring structure of a rotary electric machine having a coil constituted by a U-shaped or the like coil segment having a pair of slot insertion portions. The invention also relates to a method of manufacturing a rotating electric machine and a rotating electric machine. Background technique [0002] As a coil of a stator or a rotor of a rotating electrical machine, a so-called segment type coil is known in which coil segments respectively formed by processing a straight wire into a U shape are respectively inserted into a plurality of slots arranged in the circumferential direction of the stator or rotor , and the free end sides of these coil segments are electrically connected to each other by welding or the l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/28
CPCH02K3/28H02K15/0081H02K15/064H02K2213/03
Inventor 宫胁伸郎
Owner ODAWARA ENG
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