Motor stator

Active Publication Date: 2013-06-06
LIDASHI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]It is another object of the present invention to provide a motor stator, which facil

Problems solved by technology

In consequence, the operation to wind coils in the wire-winding grooves becomes difficult, and the number of turns of the coils is limited.
Further, it is difficult and takes much time to keep the large number of foot tubes of the tw

Method used

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Example

[0034]During installation of this first embodiment, insert the insulation sheets 31 into the wire-winding grooves 14 respectively. Subject to the design of the C-shaped cross section of the insulation sheets 31, the insulation sheets 31 can be squeezed to reduce its diameter and then inserted into the wire-winding grooves 14. After insertion, the insulation sheets 31 immediately return to their former shape, as shown in FIG. 6. At final, insert the foot tubes 22 of the two wire racks 21 into the end wire-winding groove sections 142 of the wire-winding grooves 14, i.e., the end section portions 112 of the body member 11 to the extent that the abutment faces 24 of the wire racks 21 are respectively abutted against the outer surface of the respective end section portions 112 of the body member 11. After insertion, the insulation sheets 31 enter the respective foot tubes 22 so that the tube walls of the foot tubes 22 are respectively sandwiched between the insulation sheets 31 and the w...

Example

[0039]FIGS. 10 and 11 illustrate a motor stator 40 in accordance with a second embodiment. This second embodiment is substantially similar to the aforesaid first embodiment with the exceptions as follows:

[0040]The wall thickness of the foot tubes 52 reduces gradually in direction toward the distal end thereof such that the inner diameter of the foot tubes 52 starts from the size equal to the diameter of the wire-winding groove sections 441 of the wire-winding grooves 44 corresponding to the middle section 411 of the body member 41 and then reduces gradually in direction toward the distal end. Therefore, the inner diameter of the foot tubes 52 at the distal end thereof is relatively greater than the diameter of the wire-winding groove sections 441 of the wire-winding grooves 44 corresponding to the middle section 411 of the body member 41.

[0041]Subject to the characteristic that the wall thickness of the foot tubes 51 reduces gradually in direction toward the distal end, the insulati...

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PUM

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Abstract

A motor stator includes a body member having multiple wire-winding grooves that is formed of a stack of silicon steel plates and defines axially a middle section and two end sections, the wire-dinging grooves in the end sections being greater than in the middle section, two wire racks each having foot tubes respectively inserted into the end sections of the body member in the wire-winding grooves beyond the middle section, the foot tubes having an inner diameter not less than the part of the wire-winding grooves corresponding to the middle section, and insulation sheets having a length greater than the height of the middle section of the body member and being respectively set in the wire-winding grooves and the corresponding foot tubes.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to motor stator technology and more particularly, to a motor stator, which has wire-winding grooves thereof configured to provide a usable cross-sectional area much larger than conventional designs.[0003]2. Description of the Related Art[0004]A motor, as shown in FIG. 15, generally comprises a stator and a rotor. The stator, referenced by 80, comprises a body member 81 and two wire racks 86. The body member 81 is formed of a stack of silicon steel plates, comprising a plurality of inwardly extending polar columns (not shown) and a wire-winding groove 84 between each two adjacent polar columns. Each wire rack 86 comprises a plurality of foot tubes 87 respectively inserted into the wire-winding grooves of the body member 81. The foot tubes 87 of one wire rack 86 are respectively connected to the foot tubes 87 of the other wire rack 86, forming a cylindrical insulation wall in each of the wire...

Claims

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Application Information

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IPC IPC(8): H02K3/38
CPCH02K3/522H02K3/325
Inventor LIN, YUNG-YU
Owner LIDASHI IND
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