Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Insertion system and method to insert insulators and coils in the slots of the stator of an electric machine

A technology for inserting a system and a stator, applied in the field of electric motors, can solve the problems of troublesome operation of slot liners, increased manufacturing costs, and damage to motors, etc.

Active Publication Date: 2012-05-23
TM4 INC
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practice, handling many slot liners is cumbersome
Furthermore, the removal or folding of excess material is an extra step which increases manufacturing costs
Third, since the teeth of the stack are not completely covered by the slot liners, accidental contact may occur between the stack and the coils and damage the 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
  • Insertion system and method to insert insulators and coils in the slots of the stator of an electric machine
  • Insertion system and method to insert insulators and coils in the slots of the stator of an electric machine
  • Insertion system and method to insert insulators and coils in the slots of the stator of an electric machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] Turning now to the attached Figures 1 to 5 , an exemplary insertion system 30 according to a first illustrative embodiment will be described.

[0048] The insertion system 30 is designed for inserting a continuous insulating paper 32 in a longitudinal slot 36 of a stator 38 from a continuous paper roll 34 .

[0049]Insertion system 30 includes a rotating stator holder 42, schematically shown with four spokes 44, and two interconnected radially movable pre-coil holding and pushing members, referred to as pre-coil holders 46. The exemplary insertion system 30 optionally includes a radially moveable interface paper retaining member 48 and a radially moveable wedge retaining member 50 .

[0050] In fact, as those skilled in the art will readily understand, the insertion of the illustrated systems and methods discussed herein is also designed to insert interface insulating paper and wedges, which are optional and can be omitted.

[0051] If the system 30 is a manual syst...

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 insertion of electrically insulating paper from a continuous roll into slots of a stator created by outwardly projecting teeth is described herein. The insertion of the insulating paper is done by the insertion of prewound coils in the stator slots. The electrically insulating paper is not cut prior to its insertion in the slots, thereby completely covering the outer surface of the stator. The insertion systems and methods described herein are also optionally concerned with the insertion of interphase insulation paper between the different coils inserted in the stator slots and with the insertion of slot closing wedges.

Description

technical field [0001] The present invention relates to electric motors. More particularly, the present invention relates to systems and methods for inserting insulators and pre-wound coils in slots of a stator of an electrical machine. Background technique [0002] The stator and rotor of an electric machine are usually made of stacked laminations provided with coil receiving slots defined by protruding teeth therebetween. These slots generally need to be insulated from the coils that will be inserted there. Insulating paper materials have been developed for this purpose. [0003] Traditionally, rolls of this insulating paper are cut and folded to form individual slot liners, which are manually or automatically inserted into the slots. These pads are generally U-shaped with arms dimensioned to extend outside the slot, thus helping to guide the coils there while preventing contact between the coils and the stacked laminations. Once the coil is inserted, the excess materi...

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
IPC IPC(8): H02K15/00H02K15/06H02K15/10
CPCH02K3/345H02K15/063H02K15/10H02K15/066Y10T29/53152Y10T29/49009
Inventor B.卡彭迪尔M.霍尔S.波林
Owner TM4 INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com