FR2275049A1 - Synchronous motor pole piece - laminations are cut away to minimise the heating effect at the pole - Google Patents

Synchronous motor pole piece - laminations are cut away to minimise the heating effect at the pole

Info

Publication number
FR2275049A1
FR2275049A1 FR7420591A FR7420591A FR2275049A1 FR 2275049 A1 FR2275049 A1 FR 2275049A1 FR 7420591 A FR7420591 A FR 7420591A FR 7420591 A FR7420591 A FR 7420591A FR 2275049 A1 FR2275049 A1 FR 2275049A1
Authority
FR
France
Prior art keywords
pole
laminations
cut away
pole piece
minimise
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.)
Granted
Application number
FR7420591A
Other languages
French (fr)
Other versions
FR2275049B1 (en
Inventor
Roger Gillet
Jean Allegre
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.)
Cegelec SA
Original Assignee
Cegelec SA
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 Cegelec SA filed Critical Cegelec SA
Priority to FR7420591A priority Critical patent/FR2275049A1/en
Priority to CA229,057A priority patent/CA1024577A/en
Publication of FR2275049A1 publication Critical patent/FR2275049A1/en
Application granted granted Critical
Publication of FR2275049B1 publication Critical patent/FR2275049B1/fr
Priority to US05/736,604 priority patent/US4118648A/en
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/08—Salient poles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Cosmetics (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

Pole piece designed particularly for synchronous motors and intended to reduce the effects of heating at the pole surfaces, is made up from a stack of laminations the face of which (5) may include between the laminations some other metal the whole being bonded together by soldering or plating. Each lamination (2) is cut away such that expansion due to heating may take place without distorting the pole. The slots (13) may be cut in such a way as to include the bolt hole (14) for clamping the stack. The lamination has a dovetail to facilitate keying into the pole piece core.
FR7420591A 1974-06-13 1974-06-13 Synchronous motor pole piece - laminations are cut away to minimise the heating effect at the pole Granted FR2275049A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7420591A FR2275049A1 (en) 1974-06-13 1974-06-13 Synchronous motor pole piece - laminations are cut away to minimise the heating effect at the pole
CA229,057A CA1024577A (en) 1974-06-13 1975-06-11 Salient pole for synchronous electrical machine
US05/736,604 US4118648A (en) 1974-06-13 1976-10-28 Salient pole of a synchronous electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7420591A FR2275049A1 (en) 1974-06-13 1974-06-13 Synchronous motor pole piece - laminations are cut away to minimise the heating effect at the pole

Publications (2)

Publication Number Publication Date
FR2275049A1 true FR2275049A1 (en) 1976-01-09
FR2275049B1 FR2275049B1 (en) 1976-10-15

Family

ID=9140021

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7420591A Granted FR2275049A1 (en) 1974-06-13 1974-06-13 Synchronous motor pole piece - laminations are cut away to minimise the heating effect at the pole

Country Status (2)

Country Link
CA (1) CA1024577A (en)
FR (1) FR2275049A1 (en)

Also Published As

Publication number Publication date
FR2275049B1 (en) 1976-10-15
CA1024577A (en) 1978-01-17

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Legal Events

Date Code Title Description
ST Notification of lapse