Stator of an electric machine
A stator and stator tooth technology, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of unsatisfied and unfeasible technical requirements for resistance to temperature changes and strength
Pending Publication Date: 2021-11-26
ROBERT BOSCH GMBH
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
According to the current state of the art, it is not technically feasible to use traditional joining methods such as welding or soldering for connecting CNT conductor elements or for electrically connecting CNT conductor elements to the interface of the stator, because in terms of temperature resistance Technical requirements for spliced connections are not met in terms of variability and strength
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] figure 1 A three-dimensional view of a first end side of a stator according to the invention of an electric machine with CNT conductor elements and a first coupling ring according to the invention for electrically connecting the conductor elements is shown.
[0025] The stator 1 of the electrical machine comprises a stator body with stator teeth 2 and slots 3 formed between the stator teeth 2 , in which slots an electrical conductor element 4 for forming an electrical winding 6 is respectively arranged. According to the present exemplary embodiment, for example four conductor elements 4 are arranged in each slot 3 in the slots 3 . However, the number of conductor elements 4 per slot 3 is definitely arbitrary.
[0026] The stator body has, for example, at least one stator lamination pack. On the two end faces 1.1, 1.2 of the stator 1, a coupling ring 5 is arranged in each case, which has a ring segment 8 and a plurality of tooth segment 10.
[0027] According to the ...
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
Login to View More Abstract
A stator of an electric machine is already known, comprising stator teeth and grooves formed between the stator teeth, in which electrical conductor elements of an electrical individual coil winding are provided as individual coils, wherein an interconnection ring is provided on at least one end side of the stator, which has a ring section and multiple, in particular a number corresponding to the number of stator teeth, tooth sections protruding from the ring section in the radial direction. The interconnection ring comprises multiple bus bars for interconnecting the electrical individual coils of the electrical winding. The individual coils are produced from a conventional conductor material, e.g. copper. In the stator according to the invention, an electrical winding made of CNT conductor elements is provided. According to the invention: the conductor elements (4) of the electrical winding are configured as insertable conductor elements (4) of the electrical winding designed as a plug-in winding; the conductor elements (4) are each formed of a combination of carbon nanotubes and / or graphene fibres; and at least one electrically non-conductive conductor joining device (12) is provided on at least one of the tooth sections (10) of the interconnection ring (5), to which two respective conductor ends of two different conductor elements (4) are electrically connected by means of an electrically conductive joining means.
Description
technical field [0001] The invention relates to a stator of an electric machine of the type according to the independent claim. Background technique [0002] A stator of an electric motor is known from US 2005 / 0023910 A1, which has stator teeth and slots formed between the stator teeth, in which slots the electrical conductors of the individual coil windings are respectively arranged as individual coils. Body element, wherein a coupling ring is arranged on at least one end face of the stator, the coupling ring having a ring segment and a plurality of radially extending ring segments corresponding in particular to the number of stator teeth Protruding tooth segment. The coupling ring comprises a plurality of busbars for coupling the electrical individual coils of the electrical winding. The individual coils are made of conventional conductor material, eg copper. [0003] Furthermore, electrical machines are known whose electrical windings are made of CNT conductor elements...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/02H02K3/52
CPCH02K3/522H02K3/02H02K2203/09H02K3/325H02K2203/06
Inventor J·库雅特M·勒普克J·绍尔曼
Owner ROBERT BOSCH GMBH