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Submersible motor stator coil inserting process method

A technology of submersible motor and process method, which is used in the manufacture of motor generators, electrical components, electromechanical devices, etc., can solve the problem of uneven distribution of punching sheets

Active Publication Date: 2021-09-07
SHANDONG WEIMA PUMPS MFG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006]The purpose of the present invention is to provide a process method for submersible motor stator wire embedding to solve the problem of uneven distribution of punched sheets after pressing

Method used

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  • Submersible motor stator coil inserting process method
  • Submersible motor stator coil inserting process method
  • Submersible motor stator coil inserting process method

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] see Figure 1-7 , the present invention provides a technical solution: a stator embedding process method for submersible motors, comprising the following steps

[0034] (1) Stack a plurality of circumferentially arranged stator punches 1 outside the stator core, then stack end rings 4 with the same shape and size as the stator punch 1 at both ends, and apply pressure to make the stator punch 1 Uniform compaction; Welding is performed in the welding gro...

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Abstract

The invention discloses a submersible motor stator coil inserting process method, and the method comprises the following steps: (1) stacking a plurality of stator punching sheets which are arranged in the circumferential direction outside a stator iron core, then stacking end rings which are the same as the stator punching sheets in shape and size at two ends, and applying pressure to uniformly compact the stator punching sheets; and carrying out welding in the fusion welding groove on the excircle of the stator punching sheet to form a fusion welding line, so that the stator punching sheet and the end ring are welded into a single-section iron core in a compressed state. A threading process is replaced by a wire embedding process, electromagnetic wire threading resistance does not need to be considered, the slot fullness rate is reduced, the phenomena of electromagnetic wire staggering and winding are avoided, the slot fullness rate of the submersible motor stator is practically improved, and then the torque density is improved; the stator iron core is assembled in a segmented manner instead of an integral press-fitting manner, so that the problem of non-uniform distribution after press-fitting of punching sheets is solved; winding wire embedding, winding end shaping and insulation processing are very convenient before the stator iron core is pressed into the motor shell, and the difficulty of stator winding preparation is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of submersible motor processing, in particular to a stator wire embedding process method of a submersible motor. Background technique [0002] Submersible motor oil extraction has the advantages of high degree of automation, small footprint, low maintenance, etc., and has been widely used in major oil fields. [0003] Restricted by the diameter of the wellhead of the oil well, the submersible motors are all designed to be slender structures with large length and small diameter to obtain sufficient torque, and the length can even reach more than 10 meters. The extremely long stator brings great difficulty to the wire embedding work. [0004] In order to adapt to the structural characteristics of the long stator, the stator winding of the submersible motor is generally completed by threading. Before threading, press the stator punching sheet into the motor casing, and fix the two ends of the punching sheet wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/085H02K15/00
CPCH02K15/085H02K15/0037
Inventor 马宝忠刘兴旺王秀和王旱祥刘猛李学江曹卉
Owner SHANDONG WEIMA PUMPS MFG
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