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Stator, brushless motor, stator manufacturing method

a stator and motor technology, applied in the direction of stator/rotor body manufacturing, solid insulation application, windings, etc., can solve the problems of difficult to achieve a high density arrangement of coils, reduce the size of rotating machines, and reduce the winding speed of coils when employing nozzle machines

Inactive Publication Date: 2013-08-08
ASMO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention aims to create a smaller and more cost-effective stator for use in a brushless motor. The manufacturing method involves pressing the winding portions from the opposite direction of the teeth section, which helps to prevent bulking and allows for high-density arrangement of coil wires.

Problems solved by technology

It is accordingly difficult to wind a coil from the radial direction outside of each of the yoke configuration portions with the flyer of a flyer machine.
However in such cases, since it is necessary to secure space for passage of the nozzle, it is difficult to achieve a high dense arrangement of the coils, this being disadvantageous in terms of reducing the size of a rotating machine.
This is disadvantageous to high-speed coil winding operations, and therefore also disadvantageous to reducing costs resulting by reducing the number of equipment units.

Method used

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  • Stator, brushless motor, stator manufacturing method
  • Stator, brushless motor, stator manufacturing method
  • Stator, brushless motor, stator manufacturing method

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third exemplary embodiment

of the Present Invention

[0294]Explanation follows regarding a third exemplary embodiment of the present invention, with reference to the drawings.

[0295]A stator 310 according to the third exemplary embodiment of the present invention is illustrated in FIG. 21, and is employed for example in an inner rotor type brushless motor, and is configured including a U-Phase stator configuration section 312U, a V-phase stator configuration section 312V and a W-phase stator configuration section 312W, illustrated in FIG. 22A to FIG. 22C.

[0296]As illustrated in FIG. 21 and FIG. 22A, the U-phase stator configuration section 312U is configured with plural core configuration sections 314U, a coil wire 316U, and an insulator 318U. Note that the coil wire 316U is omitted from illustration in FIG. 22A.

[0297]The plural core configuration sections 314U configure a stator core 320 together with plural V-phase core configuration sections 314V and plural W-phase core configuration sections 314W, described ...

fourth exemplary embodiment

[0382]Explanation follows regarding a fourth exemplary embodiment of the present invention.

[0383]A stator 410 according to a fourth exemplary embodiment of the present invention illustrated in FIG. 27 has portions similar to those of the stator of the third exemplary embodiment. Explanation hence focuses on differing portions and explanation regarding similar portions is omitted as appropriate.

[0384]In the present exemplary embodiment, as illustrated in FIG. 27 and FIG. 28A, in a U-phase stator configuration section 412U, a first connection portion 436U is disposed at a first axial direction side (the arrow Z1 side) of a stator core 420 and is formed in a ring shape extending around a circumferential direction of the stator core 420. The first connection portion 436U is provided further to a stator core 420 radial direction inside than teeth section insulator portions 442U, 452U (namely, than winding portions 428U wound on teeth sections 422U). Axial direction extending portions 447...

fifth exemplary embodiment

[0423]Explanation follows regarding a fifth exemplary embodiment of the present invention.

[0424]Note that in the following explanation, for convenience the letters U, V, W are omitted as suffixes to the labels of each member and each portion when no discrimination is made between the U-phase, the V-phase and the W-phase.

[0425]The fifth exemplary embodiment of the present invention illustrated in FIG. 34 has an interlocking structure 570 that differs from that of the fourth exemplary embodiment of the present invention in the following respects.

[0426]Namely, fitting portions 572 are formed at one member of adjacent yoke configuration section insulator portions 554, and fitting protrusions 573 are formed to the fitting portions 572. Recess shaped fitted-to portions 574 are moreover formed at the other member of the adjacent yoke configuration section insulator portions 554. Insulator portions 534 of any insulators 518 out of the plural insulators are accordingly fixed together by the ...

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Abstract

A stator includes: plural core configuration sections each including plural yoke configuration sections that configure a ring shaped yoke and are segmented in a yoke circumferential direction and plural teeth sections that project from the respective yoke configuration sections along a yoke radial direction, with the plural yoke configuration sections and the plural teeth sections integrated together; plural coil wires that are wound onto the respective teeth sections to configure plural winding portions; and plural insulators that each include plural insulator portions that are integrated to each of the respective core configuration sections and insulate between the teeth sections and the winding portions, and a connection portion that connects together the plural insulator portions.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is based on and claims priority under 35 USC 119 from Japanese Patent Application Nos. 2012-25297 filed on Feb. 8, 2012, 2012-25298 filed on Feb. 8, 2012, 2012-40627 filed on Feb. 27, 2012, 2012-95870 filed on Apr. 19, 2012, 2012-95871 filed on Apr. 19, 2012, 2012-95872 filed on Apr. 19, 2012, and 2012-252190 filed on Nov. 16, 2012, the disclosures of which are incorporated by reference herein.BACKGROUND OF THE INVENTION[0002]1. Technical Field[0003]The present invention relates to a stator, a brushless motor, and a stator manufacturing method.[0004]2. Related Art[0005]Known stators employed in a brushless motor are for example disclosed in Japanese Patent Application Laid-Open (JP-A) No. 9-322441. JP-A No. 9-322441 discloses an armature with a yoke configured by plural ring shaped yoke configuration sections segmented along the axial direction. Each of the yoke configuration sections is integrally formed with plural toot...

Claims

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Application Information

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IPC IPC(8): H02K3/28H02K15/02H02K3/52
CPCH02K3/28H02K3/522H02K15/02H02K1/148Y10T29/49009H02K15/022H02K15/095H02K2203/06H02K2203/12H02K3/18H02K3/345H02K15/10
Inventor SEKI, AKIHIKOYOSHIKAWA, TETSUJIADACHI, YOSHIHIROISHINO, YUKIHIDESOGA, ISOSHITAKEMURA, YUJI
Owner ASMO CO LTD
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