Electric machine stator extending concentrically around a central axis and method for manufacturing the electric machine

A central axis and coaxial technology, which is applied in the field of manufacturing motors according to the type of independent claim, can solve problems such as troublesome removal, inability to ensure the coaxiality of the bearing and the armature, and increase vibration, so as to achieve high coaxiality, The effect of saving production steps and effectively running around

Active Publication Date: 2018-11-13
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, such stators have the disadvantage that they have to be removed from the injection mold in a troublesome manner
Furthermore, the manufacturing process is not able to ensure sufficient concentricity of the bearings to the armature, which leads to increased vibration

Method used

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  • Electric machine stator extending concentrically around a central axis and method for manufacturing the electric machine
  • Electric machine stator extending concentrically around a central axis and method for manufacturing the electric machine
  • Electric machine stator extending concentrically around a central axis and method for manufacturing the electric machine

Examples

Experimental program
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Effect test

Embodiment Construction

[0028] exist figure 1 A stator unit 1 with a bearing carrier cover 3 is shown in . The stator unit 1 comprises a tube 5 made of metal with a stator 11 arranged in the tube 5 and in the figure 2 The section is shown in . The stator unit 1 with the bearing-carrying cover 3 is part of the electric machine. An injection molding 13 is arranged between the stator 11 and the tube 5 . The injection molding encapsulation 13 is formed by means of an injection molding tool. The injection molding tool is engaged on the axial end of the tube 5 . Injection molding tools include nozzles, injection molds and further parts and components necessary for injection molding. It is also conceivable to have additional connections for injection molding tools on the radial side of the tube 5 . The injection molding 6 partially protrudes from the tube 5 at both axial ends. The tube 5 can also have a polymer coating, wherein the polymer coating fits onto the tube radially on the outside.

[0029...

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PUM

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Abstract

The invention relates to a stator (11) used for an electromotor. The stator is coaxially wound around a central shaft line (18) in an extending manner. The stator (11) is provided with an electric winding (12) arranged on winding teeth, the electric winding is provided with a wire material continuing part (10) and an electric connector (4) that are applied to the electric contact part (34). The stator (11) is provided with an injection molding encapsulating part (13) which at least partially surrounds the winding (12), the stator (11) is coaxially arranged in a tube (5), the injection molding encapsulating part (13) is arranged in the tube (5), and the invention also relates to a method for manufacturing the electromotor having the stator.

Description

technical field [0001] The invention relates to an electric machine and a method for producing an electric machine of the type according to the independent claim. Background technique [0002] An electric machine is known from document US 2004 / 0056383 A1, in which the stator is surrounded by injection molding. The stator segments are assembled before injection molding. The injection molding takes place in an injection mold provided for this purpose, into which the components to be injection molded, such as the stator and further components, are inserted. After injection molding, the injection molding stator is removed from the injection mold. The injection-molded stator has injection-molded fastening elements which interact with pin-shaped fastening means for fastening the stator. [0003] However, such stators have the disadvantage that they have to be removed from the injection mold in a complicated manner. Furthermore, the manufacturing process is not able to ensure s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/22H02K3/32H02K5/16H02K5/22H02K15/12
CPCH02K5/15H02K1/185H02K3/48H02K5/08H02K15/028H02K2213/12
Inventor F·西蒙Z·兰贝特P·绍洛伊
Owner ROBERT BOSCH GMBH
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