FR2440640A1 - Slot insulation for electrical machine - consists of laminate of metal and dielectric sheets - Google Patents

Slot insulation for electrical machine - consists of laminate of metal and dielectric sheets

Info

Publication number
FR2440640A1
FR2440640A1 FR7923626A FR7923626A FR2440640A1 FR 2440640 A1 FR2440640 A1 FR 2440640A1 FR 7923626 A FR7923626 A FR 7923626A FR 7923626 A FR7923626 A FR 7923626A FR 2440640 A1 FR2440640 A1 FR 2440640A1
Authority
FR
France
Prior art keywords
metal
folium
dielectric
laminate
slot insulation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR7923626A
Other languages
French (fr)
Inventor
Richard Striebel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2440640A1 publication Critical patent/FR2440640A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Laminated Bodies (AREA)

Abstract

The proposed slot insulation is a folium made up of at least two layers, one a metallic sheet and the other a dielectric. The metal acts as a protective layer for the thin dielectric. The space factor is higher and the heat transfer better than with a thick insulation folium used to give the necessary mechanical strength. Typical applications are in the stator slots of machines employed as alternators for motor vehicles. The metal can be steel or aluminium. If the latter is used then the dielectric layer can be produced electrochemically on the metal. A three layer folium may also be used with the metal in the centre.
FR7923626A 1978-09-22 1979-09-21 Slot insulation for electrical machine - consists of laminate of metal and dielectric sheets Withdrawn FR2440640A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782841313 DE2841313A1 (en) 1978-09-22 1978-09-22 NUT INSULATION FOR ELECTRICAL MACHINES

Publications (1)

Publication Number Publication Date
FR2440640A1 true FR2440640A1 (en) 1980-05-30

Family

ID=6050174

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7923626A Withdrawn FR2440640A1 (en) 1978-09-22 1979-09-21 Slot insulation for electrical machine - consists of laminate of metal and dielectric sheets

Country Status (2)

Country Link
DE (1) DE2841313A1 (en)
FR (1) FR2440640A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997040567A1 (en) * 1996-04-22 1997-10-30 Control Techniques Dynamics Limited Improved liner for a winding of an electric machine
FR3025368A1 (en) * 2014-08-28 2016-03-04 Gen Electric ROTORS NOTCH FITTINGS

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5068563A (en) * 1990-10-09 1991-11-26 Milwaukee Electric Tool Corporation Tab insulators for insulating armature core slots
DE102014221943A1 (en) * 2014-10-28 2016-04-28 Robert Bosch Gmbh Stator of an electrical machine and method for its production
DE102017214195A1 (en) * 2017-08-15 2019-02-21 Robert Bosch Gmbh Method for producing a slot insulation paper, slot insulation paper, stator and electric machine with stator
DE102021203565A1 (en) 2021-04-12 2022-10-13 Robert Bosch Gesellschaft mit beschränkter Haftung Slot insulation for electrical machines

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1524558A (en) * 1922-10-28 1925-01-27 Westinghouse Electric & Mfg Co Insulation for conductors in squirrel-cage motors
US2173726A (en) * 1938-01-05 1939-09-19 Dobeckmun Co Insulating material
DE947494C (en) * 1940-04-10 1956-08-16 Siemens Ag Moisture-proof groove insulation
GB788520A (en) * 1954-08-12 1958-01-02 Gen Electric Improvements in laminated electrical insulation
FR1306270A (en) * 1961-11-06 1962-10-13 Epoxylite Corp Improvements to dynamos and electric motors
FR1347783A (en) * 1962-11-19 1964-01-04 Forges Ateliers Const Electr Internal notch insulation
FR1592957A (en) * 1968-11-25 1970-05-19
US3525652A (en) * 1969-07-28 1970-08-25 Sumitomo Electric Industries Method of manufacturing an insulated foil conductor
US3745394A (en) * 1967-07-17 1973-07-10 Gen Electric Electrical insulators for slotted magnetic cores

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1524558A (en) * 1922-10-28 1925-01-27 Westinghouse Electric & Mfg Co Insulation for conductors in squirrel-cage motors
US2173726A (en) * 1938-01-05 1939-09-19 Dobeckmun Co Insulating material
DE947494C (en) * 1940-04-10 1956-08-16 Siemens Ag Moisture-proof groove insulation
GB788520A (en) * 1954-08-12 1958-01-02 Gen Electric Improvements in laminated electrical insulation
FR1306270A (en) * 1961-11-06 1962-10-13 Epoxylite Corp Improvements to dynamos and electric motors
FR1347783A (en) * 1962-11-19 1964-01-04 Forges Ateliers Const Electr Internal notch insulation
US3745394A (en) * 1967-07-17 1973-07-10 Gen Electric Electrical insulators for slotted magnetic cores
FR1592957A (en) * 1968-11-25 1970-05-19
US3525652A (en) * 1969-07-28 1970-08-25 Sumitomo Electric Industries Method of manufacturing an insulated foil conductor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997040567A1 (en) * 1996-04-22 1997-10-30 Control Techniques Dynamics Limited Improved liner for a winding of an electric machine
FR3025368A1 (en) * 2014-08-28 2016-03-04 Gen Electric ROTORS NOTCH FITTINGS
GB2531880A (en) * 2014-08-28 2016-05-04 Gen Electric Rotor Slot Liners
US9667112B2 (en) 2014-08-28 2017-05-30 General Electric Company Rotor slot liners
GB2531880B (en) * 2014-08-28 2017-06-07 Gen Electric Rotor Slot Liners

Also Published As

Publication number Publication date
DE2841313A1 (en) 1980-04-03

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Legal Events

Date Code Title Description
ST Notification of lapse