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Oil-submerged pump direct-drive ultra-slender concentrated winding permanent magnet motor and manufacture method

A permanent magnet motor and concentrated winding technology, which is applied in the fields of submersible pump direct drive super slender concentrated winding permanent magnet motor, oilfield oil production machinery and equipment, and permanent magnet synchronous motor, can solve problems such as difficulty and low efficiency, and improve efficiency , The effect of reducing manufacturing costs and improving the winding method

Inactive Publication Date: 2014-03-12
PETROCHINA CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a submersible oil pump direct-drive ultra-slender concentrated winding permanent magnet motor and a manufacturing method to solve the problems of high difficulty and low efficiency in the winding of existing permanent magnet motors

Method used

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  • Oil-submerged pump direct-drive ultra-slender concentrated winding permanent magnet motor and manufacture method
  • Oil-submerged pump direct-drive ultra-slender concentrated winding permanent magnet motor and manufacture method
  • Oil-submerged pump direct-drive ultra-slender concentrated winding permanent magnet motor and manufacture method

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Embodiment Construction

[0033] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0034] The submersible pump direct-drive ultra-slender concentrated winding permanent magnet motor according to an embodiment of the present invention includes: at least one motor unit, such as figure 1 and figure 2 As shown, the motor unit includes:

[0035] Stator core 1, the stator core is a split structure, the stator core 1 is assembled into a circular ring by a plurality of winding core blocks 5;

[0036] Such as figure 2 and image 3 , each of the winding core blocks 5 includes: an elongated iron core block 7 and a winding copper wire 8 wound on the elongated iron core block 7;

[0037] Such as image 3 and Figure 4 , the elongated iron core block 7 is formed by stacking a plurality of T-shaped punches, each of th...

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Abstract

The invention provides an oil-submerged pump direct-drive ultra-slender concentrated winding permanent magnet motor and a manufacture method. The oil-submerged pump direct-drive ultra-slender concentrated winding permanent magnet motor comprises a motor unit, wherein the motor unit comprises a stator core of a split type structure, the stator core is assembled into an annular shape by multiple core blocks with windings, each core block with one winding comprises a slender core block and a winding copper wire, each slender core block is formed by overlaying T-shaped punched pieces and is provided with a stator tooth, and the winding copper wires are wound on the stator teeth. The manufacture method of the permanent magnet motor comprises the steps of overlaying the T-shaped punched pieces to form the slender core blocks, and winding the winding copper wires on the stator teeth to form the core blocks with the windings; connecting the multiple core blocks with the windings in sequence along the peripheral direction and assembling to form the annular stator core; arranging the annular stator core into an enclosure by press-fitting. The winding process of the core blocks with the windings is easy to realize, and the manufacturing is simple.

Description

technical field [0001] The invention relates to the field of oil extraction, in particular to oil extraction mechanical equipment in oilfields, in particular to a permanent magnet synchronous motor, that is, a direct-driven ultra-slender concentrated winding permanent magnet motor for a submersible pump and a manufacturing method thereof. Background technique [0002] With the development of the oil production industry in oilfields, the working conditions of screw pumps for oil production are becoming more and more complex. The application of new technologies such as inclined wells and horizontal wells, the development of hard-to-produce reserves, and the gradual increase in high-sand content wells and heavy oil wells. Traditional ground screw pumps The sucker rod type operation has exposed many disadvantages. At present, the application of underground submersible screw pump has attracted much attention. In particular, the permanent magnet synchronous motor direct drive sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/16H02K15/00H02K15/02
Inventor 刘合高扬
Owner PETROCHINA CO LTD
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