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Block type stator forming method under full-size control, block type stator and motor

A full-scale, stator technology, used in the manufacture of stator/rotor bodies, manufacturing tools, electric components, etc., can solve problems such as the inability to align the stator and rotor cores of motors

Active Publication Date: 2021-09-07
WUHAN HUADA NEW TYPE MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The perpendicularity between the stator axial direction and the end face will cause the stator and rotor cores of the motor to be out of alignment, which has a huge impact on the output torque of the motor and the vibration of the motor

Method used

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  • Block type stator forming method under full-size control, block type stator and motor
  • Block type stator forming method under full-size control, block type stator and motor
  • Block type stator forming method under full-size control, block type stator and motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] A method for forming a segmented stator under full-scale control, which includes a set of tooling used in two processes of stator core forming and welding and its use method, as follows:

[0065] The tooling includes a mandrel, a notch positioning rod, a toothed positioning rod, an upper pressing plate, a lower pressing plate, a screw and an outer ring fixing hoop. The outer ring fixing hoop is composed of upper, middle, and lower parts. Only the upper and lower parts are used for the round fixing hoop, and the upper, middle and lower parts are used for the outer round fixing hoop in the stator core welding process.

[0066] Press the notch positioning rod into the mandrel, and then match the two with the inner circle part of the lower pressing plate; then insert the toothed positioning rod into the corresponding position of the lower pressing plate.

[0067] Put the laminated stator core into the position corresponding to the tooling in step 2.

[0068] Install the ou...

Embodiment 2

[0074] The invention relates to an iron core shaping method, which realizes the full-scale control of the shape and position tolerance of the iron core through the cooperation of the laminated stator iron core and various parts of the tooling.

[0075] The method of lamination and shaping of the stator core, through the cooperation of the V-shaped buckle and the tooling, the size is shaped, which is convenient for the installation of the skeleton, and can ensure that the size error of the iron core meets the expected requirements after the winding of the stator is completed.

[0076] One set of tooling is used for two processes, in which the outer circle positioning hoop of tooling 5 adopts a three-section block structure. With the cooperation of other parts of the tooling, the full-size positioning of several iron core blocks can be carried out. The V-shaped buckle is put into the corresponding position in the middle of the stator core from the gap in the middle of the positio...

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Abstract

The invention belongs to the technical field of motor block type stator manufacturing processes, and discloses a block type stator forming method under full-size control, a block type stator and a motor. The method comprises the steps: after lamination of punching sheets is completed, locating an inner circle, an outer circle and a groove shape of an iron core of the laminated punching sheets, and tightly pressing and compacting the punching sheets by screwing down screws on a tool, and then buckling and pressing the iron core into a whole by using a V-shaped buckle sheet; after the stator iron core is installed on the framework, carrying out winding, and after winding is completed, adopting the tool for full positioning again, and adopting laser welding for welding to form a whole-circle-shaped stator. The core rod and the inner circle of the stator core, the notch positioning rod and the stator notch, and the tooth-shaped positioning rod and the outer circle fixing hoop are matched with the stator core, so full-size control over the stator core in the manufacturing process is achieved. The number of tools is reduced, the tools are easy and convenient to switch, the stator iron core is formed reliably, and the size of each part of the stator iron core can be kept.

Description

technical field [0001] The invention belongs to the technical field of motor block stator manufacturing technology, and in particular relates to a method for forming a block stator under full-scale control, a block stator, and a motor. Background technique [0002] At present, in order to increase the power density of the permanent magnet synchronous motor and shorten the overall size of the motor, the motor stator is designed in the form of fractional slot concentrated winding. The stator punching of the motor divides the entire circle evenly according to the number of slots N. After the stator punching of each slot is laminated and formed separately, the skeleton is installed for winding, and finally N pieces of stator punching are spliced ​​into a full circle, which is shrunk with the casing. , forming a complete stator. [0003] At present, the self-riveting scheme of punching sheets is mostly used for the lamination of stator punching sheets in each slot, which solves ...

Claims

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Application Information

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IPC IPC(8): H02K15/02H02K1/12H02K3/46B23P19/06B23K26/21
CPCH02K15/02H02K1/12H02K3/46B23K26/21B23P19/06
Inventor 汤欢宋宝王坤肖杨陈彪董坤程佳付静静杜成飞
Owner WUHAN HUADA NEW TYPE MOTOR CO LTD
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