Unlock instant, AI-driven research and patent intelligence for your innovation.

Electric motor having optimised stator structure

A motor and stator technology, applied in the field of motors, can solve the problems of limited cooling of the thermal conductivity stator, limited continuous output power of the motor, etc., and achieve the effect of small offset

Inactive Publication Date: 2013-10-23
CPM COMPACT POWER MOTORS
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in motors with axially longer stators and higher torques, said stator structure is no longer adequate
Furthermore, the stator carrier plate cannot be produced from an inexpensive material with high thermal conductivity, such as aluminum, since the form-fitting elements must have high precision
If the stator carrier plate is produced from plastic, for example by injection casting, the thermal conductivity and thus the cooling of the stator is strongly limited, which leads to a limitation of the continuous output power of the electric motor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electric motor having optimised stator structure
  • Electric motor having optimised stator structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] exist figure 1 Two views of a dual-rotor motor with a motor according to the stator structure of the invention are shown in . The lower view shows two possible embodiments of the stator.

[0029] The electric motor has a self-supporting stator 20 which is arranged between an outer rotor 18 and an inner rotor 19 . The outer rotor 18 and the inner rotor 19 are connected to each other and to a shaft not shown via a bottom wall 21 . External and internal magnets 16 , 17 are fastened to the outer rotor 18 and the inner rotor 19 .

[0030] The stator structure essentially consists of a composite structure consisting of a stator tooth 1 and end elements 2 , 6 mounted on the stator tooth at the end, which are wound by means of coils 3 and fastened to the respective on the stator tooth 1. The end elements 2 or 6 are connected to one another via a surrounding ring 5 , 7 a , 7 b and thus the stator teeth 1 are also connected to one another via a surrounding ring 5 , 7 a , 7 b....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an electric motor having a rotor and a hollow-cylindrical stator which carries exciter coils (3), the stator being connected at the end face to a stator carrier (8) of the electric motor and having stator teeth (1) which extend in an axial direction and which each have at least one pole shoe (1a, 1b), at least one coil winding (3) being wound around a stator tooth (1) in each case, there being arranged at one or both end faces (1St1, 1St2) of a stator tooth (1) and / or the pole shoes (1a, 1b) thereof an end face element (2, 6) which is / are at least partially wrapped or surrounded by the coil winding (3).

Description

technical field [0001] The invention relates to an electric motor having a rotor and a stator formed as a hollow cylinder carrying field coils, wherein the stator is connected at the end side to the stator carrier of the electric motor and has pole pieces extending in the axial direction each having at least one pole shoe A stator tooth, wherein at least one coil winding is wound around the stator tooth in each case. Background technique [0002] Motors constructed with two rotors in order to improve the magnetic path are known. The electric motor is a combination of an outer rotor and an inner rotor. The stator is formed by a coiled yoke which each has radially inner and outer pole faces. In this case, the double rotor has an outer rotor and an inner rotor, which are equipped with permanent magnets. In this case, the double rotor includes a cylindrically formed stator. The magnetic field generated in the yoke flows through the permanent magnets of the outer rotor as wel...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/14H02K1/18H02K3/52H02K9/22
CPCH02K1/14H02K1/18H02K9/22H02K3/524H02K16/02H02K9/223
Inventor 瓦伦丁·翁特尔弗罗纳
Owner CPM COMPACT POWER MOTORS