Stator core support device, and method of supporting stator core

Patent metadata

Field	Value
Publication number	US-11646643-B2
Application number	US-202117223682-A
Country	US
Kind code	B2
Filing date	Apr 6, 2021
Priority date	May 15, 2020
Publication date	May 9, 2023
Grant date	May 9, 2023

Abstract

A stator core support device includes two support members that are radially opposed to a stator core such that a central axis of the stator core is interposed between the support members, and an inverting mechanism that inverts the two support members. Each of the support members has a radially opposed face that is radially opposed to the stator core, a first axially opposed face that is axially opposed to a first axial side of the stator core, and a second axially opposed face that is axially opposed to a second axial side of the stator core. While the inverting mechanism is inverting the two support members that hold the stator core, the stator core is moved in the axial direction relative to the two support members.

First claim

What is claimed is:

1. A stator core support device comprising:
two support members that are configured to hold a stator core, and are radially opposed to the stator core such that a central axis of the stator core is interposed between the support members; and
an inverting mechanism configured to rotate the two support members together at the same time while the support members are holding the stator core, to reverse an orientation of the stator core in a direction of extension of the central axis,
wherein each of the support members has a radially opposed face that is radially opposed to the stator core, a first axially opposed face that is opposed to a first axial side of the stator core in an axial direction of the stator core, and a second axially opposed face that is opposed to a second axial side of the stator core in the axial direction, the second axially opposed face being positioned such that a distance measured in the axial direction from the first axially opposed face to the second axially opposed face is longer than a dimension of the stator core measured in the axial direction,
wherein the stator core is configured to be moved in the axial direction relative to the two support members, while the two support members are being inverted while holding the stator core, and
wherein the first axially opposed face is configured to contact with the first axial side of the stator core, to restrict movement of the stator core to the first axial side, relative to the support members, and the second axially opposed face is configured to contact with the second axial side of the stator core, to restrict movement of the stator core to the second axial side, relative to the support members.

2. The stator core support device according to claim 1 , wherein:
the inverting mechanism is configured to invert the two support members that hold the stator core of which the central axis extends substantially in parallel with a vertical direction; and
the two support members are configured to hold the stator core such that the stator core is able to radially move relative to the two support members.

3. The stator core support device according to claim 1 , wherein, in each of the support members, a coefficient of kinetic friction of the radially opposed face is smaller than that of the first axially opposed face, and is smaller than that of the second axially opposed face.

4. The stator core support device according to claim 1 , wherein, in each of the support members, an impact-absorbing capability of the first axially opposed face is higher than that of the radially opposed face, and the impact-absorbing capability of the second axially opposed face is higher than that of the radially opposed face.

5. The stator core support device according to claim 1 , wherein the radially opposed face of at least one of the support members includes a first cylindrical face provided by a part of a first cylindrical inner circumferential surface having a first radius of curvature, and two second cylindrical faces formed on opposite sides of the first cylindrical face in the axial direction, each of the second cylindrical faces being provided by a part of a second cylindrical inner circumferential surface having a second radius of curvature that is smaller than the first radius of curvature.

6. The stator core support device according to claim 1 , wherein the radially opposed face of one of the two support members is a flat face.

7. A method of supporting a stator core, using a stator core support device including two support members that are configured to hold a stator core, and are radially opposed to the stator core such that a central axis of the stator core is interposed between the support members, and an inverting mechanism configured to rotate the two support members together at the same time while the support members are holding the stator core, to reverse an orientation of the stator core in a direction of extension of the central axis, wherein each of the support members has a radially opposed face that is radially opposed to the stator core, a first axially opposed face that is opposed to a first axial side of the stator core in an axial direction of the stator core, and a second axially opposed face that is opposed to a second axial side of the stator core in the axial direction, the second axially opposed face being positioned such that a distance measured in the axial direction from the first axially opposed face to the second axially opposed face is longer than a dimension of the stator core measured in the axial direction, the method comprising:
a holding step of holding the stator core with the two support members, such that, in each of the support members, the first axially opposed face is opposed to the first axial side of the stator core, and the second axially opposed face is opposed to the second axial side of the stator core, and such that the stator core is able to move in the axial direction relative to the two support members, and is unable to be detached from the two support members; and
an inverting step of rotating the two support members holding the stator core together at the same time, after the holding step, to move the stator core in the axial direction relative to the two support members, and reverse the orientation of the stator core in the direction of extension of the central axis.

Assignees

• Toyota Motor Co Ltd

Inventors

• Tosaki Masataka
• Kaneshige Naoki

Classifications

• H02K15/33

  Connecting winding sections; Forming leads; Connecting leads to terminals · CPC title

• B25B5/102

  with at least one jaw sliding along a bar · CPC title

• H02K15/02 Primary

  of stator or rotor bodies · CPC title

• B25B1/00

  Vices (specially adapted for tying flies for angling A01K97/28; specially adapted for machine tools B23Q3/00 {; rope or cable splicing vices D07B7/162}) · CPC title

• H02K15/064 Primary

  Windings consisting of separate segments · CPC title