Method of positioning and fixing of stator core and apparatus for same

Patent metadata

Field	Value
Publication number	US-11245314-B2
Application number	US-201916554764-A
Country	US
Kind code	B2
Filing date	Aug 29, 2019
Priority date	Sep 4, 2018
Publication date	Feb 8, 2022
Grant date	Feb 8, 2022

Abstract

A positioning and fixing apparatus that fixes a position of a stator core includes a plurality of positioners that are displaced so as to approach or separate from the stator core, by a positioner displacing unit. One of the positioners is an engager that engages with a first tab section being an engaging section. First, the engager engages with the first tab section, and then, pressers being the remainder of the positioners position a certain region of the stator core.

First claim

What is claimed is:

1. A method of positioning and fixing of a stator core in which, when a stator is obtained by inserting an electrical conductor in a slot formed in the stator core provided with an engaging section, the stator core is positioned and fixed by a positioning and fixing apparatus which comprises a plurality of positioners that are displaced in a direction of approaching or separating from the stator core from an outer side of the stator core,
wherein one of the plurality of positioners is an engager that engages with the engaging section, and
the engager includes a rolling body that makes sliding contact with the engaging section,
the method of positioning and fixing of the stator core including:
an engaging step in which the engager is displaced in a direction of approaching the stator core, and engages with the engaging section, whereby the stator core is preliminary positioned and fixed; and
a main positioning step in which one of the plurality of positioners, other than the engager, is displaced in a direction of approaching the stator core, and positions a certain region of the stator core, whereby the stator core is positioned and fixed.

2. The method of positioning and fixing of a stator core according to claim 1 , wherein the stator core is further provided with a sub-engaging section, and the positioning and fixing apparatus further comprises a sub-engager that is provided in a position facing the engager, as one of the plurality of positioners, and
a sub-engaging step in which the sub-engager is displaced in a direction of approaching the stator core and engages with the sub-engaging section, is performed between the engaging step and the main positioning step.

3. The method of positioning and fixing of a stator core according to claim 2 , wherein a pressing force applied to the stator core from the sub-engager is configured smaller compared to a pressing force applied to the stator core from the engager.

4. The method of positioning and fixing of a stator core according to claim 1 , wherein a guide member that guides a certain region of the electrical conductor into the slot is provided above the plurality of positioners, and the guide member is positioned with respect to the slot when one of the plurality of positioners abuts on the stator core.

5. A positioning and fixing apparatus of a stator core which comprises a plurality of positioners that, when a stator is obtained by inserting an electrical conductor in a slot formed in the stator core provided with an engaging section, are displaced in a direction of approaching or separating from the stator core from an outer side of the stator core,
one of the plurality of positioners being configured as an engager that is displaced in a direction of approaching the stator core and engages with the engaging section,
the positioning and fixing apparatus of the stator core comprising:
an actuator that displaces the engager; and
another actuator that displaces a remainder of the positioners separately from the engager, and
the remainder of the positioners being displaced in a direction of approaching the stator core and thereby configured to position a certain region of the stator core,
the engager including a rolling body that makes sliding contact with the engaging section.

6. The positioning and fixing apparatus of a stator core according to claim 5 , wherein the stator core is further provided with a sub-engaging section, and one provided in a position facing the engager, of the plurality of positioners is configured as a sub-engager that engages with the sub-engaging section, and
the another actuator includes a sub-engager displacing unit configured to displace the sub-engager separately from the engager and the remainder of the positioners.

7. The positioning and fixing apparatus of a stator core according to claim 6 , wherein the sub-engager includes a rolling body configured to make sliding contact with the sub-engaging section.

8. The positioning and fixing apparatus of a stator core according to claim 6 , wherein a driving force on the sub-engager of the sub-engager displacing unit is set smaller compared to a driving force on the engager of the actuator.

9. The positioning and fixing apparatus of a stator core according to claim 5 , wherein a guide member that guides a certain region of the electrical conductor into the slot is provided above the plurality of positioners.

Assignees

• Honda Motor Co Ltd

Inventors

• Yoshida Takashi
• Inoue Takao
• Shino Osamu
• Ota Minoru

Classifications

• H02K15/021 Primary

  Magnetic cores · CPC title

• Y10T29/49009

  Dynamoelectric machine · CPC title

• Y10T29/53143

  Motor or generator · CPC title

• H02K15/085 Primary

  by laying conductors into slotted stators · CPC title

• B21D28/32

  in other articles of special shape · CPC title