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GB627446A - Improvements relating to laminated electro-magnet cores - Google Patents

Improvements relating to laminated electro-magnet cores

Info

Publication number
GB627446A
GB627446A GB1406847A GB1406847A GB627446A GB 627446 A GB627446 A GB 627446A GB 1406847 A GB1406847 A GB 1406847A GB 1406847 A GB1406847 A GB 1406847A GB 627446 A GB627446 A GB 627446A
Authority
GB
United Kingdom
Prior art keywords
stack
laminations
bolts
round
rivets
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.)
Expired
Application number
GB1406847A
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.)
JOHN WILFRED RODGER
Bruce Peebles and Co Ltd
Original Assignee
JOHN WILFRED RODGER
Bruce Peebles and Co Ltd
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 JOHN WILFRED RODGER, Bruce Peebles and Co Ltd filed Critical JOHN WILFRED RODGER
Priority to GB1406847A priority Critical patent/GB627446A/en
Publication of GB627446A publication Critical patent/GB627446A/en
Expired 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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators

Landscapes

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

Abstract

627,446. Cooling dynamo-electric machines. PEEBLES & CO., Ltd., B., and RODGER, J. W. May 27, 1947, No. 14068. [Class 351 An annular core consists of a stack of laminations of similar non-circular shape angularly staggered about the axis so as to form one or more helical ridges at its outer or inner periphery, there being a number of holes arranged in a circle round the centre, certain of which are occupied by clamping bolts. Each lamination A is square with rounded corners A<SP>1</SP> The laminations are held together by bolts or'rivets G passing through selected holes A<SP>4</SP> which are equally spaced round a circle having a diameter slightly less than the square side. The bolts or rivets G also pass through the end plates B. The staggered arrangement of the laminations forms at the outer periphery of the stack four V-shaped helical grooves extending, round the stack. Each of the end plates B has four kidney-shaped openings registering with the groove ends. Air from the fan E and directed by the fan cowl F traverses the helical paths. A sheet metal cover H rests on the ribs and completely surrounds the stack. Staggering of the laminations may be done either singly or in groups according to the amount of cooling surface required.
GB1406847A 1947-05-27 1947-05-27 Improvements relating to laminated electro-magnet cores Expired GB627446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1406847A GB627446A (en) 1947-05-27 1947-05-27 Improvements relating to laminated electro-magnet cores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1406847A GB627446A (en) 1947-05-27 1947-05-27 Improvements relating to laminated electro-magnet cores

Publications (1)

Publication Number Publication Date
GB627446A true GB627446A (en) 1949-08-09

Family

ID=10034401

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1406847A Expired GB627446A (en) 1947-05-27 1947-05-27 Improvements relating to laminated electro-magnet cores

Country Status (1)

Country Link
GB (1) GB627446A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735950A (en) * 1956-02-21 brown
DE1034256B (en) * 1956-10-05 1958-07-17 Elektro Werk Ebeling Closed electric motor with back cooling
DE1084363B (en) * 1957-09-21 1960-06-30 Zjednoczenie Przemyslu Masz I Cooling of an electrical alternating current machine with helical cooling ducts on the back of the laminated core
GB2217118A (en) * 1988-03-31 1989-10-18 Aisin Seiki Cooling dynamoelectric machines : anti burst rotor construction
WO1995024067A1 (en) * 1994-03-01 1995-09-08 Numatic International Limited Electric motor
GB2499236A (en) * 2012-02-10 2013-08-14 Rolls Royce Plc A cooling arrangement for an electrical machine
GB2499235A (en) * 2012-02-10 2013-08-14 Rolls Royce Plc A cooling arrangement for an electrical machine
WO2018229098A1 (en) * 2017-06-14 2018-12-20 Moteurs Leroy-Somer Twisted stator and manufacturing method

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735950A (en) * 1956-02-21 brown
DE1034256B (en) * 1956-10-05 1958-07-17 Elektro Werk Ebeling Closed electric motor with back cooling
DE1084363B (en) * 1957-09-21 1960-06-30 Zjednoczenie Przemyslu Masz I Cooling of an electrical alternating current machine with helical cooling ducts on the back of the laminated core
GB2217118A (en) * 1988-03-31 1989-10-18 Aisin Seiki Cooling dynamoelectric machines : anti burst rotor construction
GB2217118B (en) * 1988-03-31 1991-12-04 Aisin Seiki High speed rotors for dynamo-electric machines
WO1995024067A1 (en) * 1994-03-01 1995-09-08 Numatic International Limited Electric motor
GB2499236A (en) * 2012-02-10 2013-08-14 Rolls Royce Plc A cooling arrangement for an electrical machine
GB2499235A (en) * 2012-02-10 2013-08-14 Rolls Royce Plc A cooling arrangement for an electrical machine
EP2812982A2 (en) * 2012-02-10 2014-12-17 Rolls-Royce PLC A cooling arrangement for an electrical machine
US9735630B2 (en) 2012-02-10 2017-08-15 Rolls-Royce Plc Cooling arrangement for an electrical machine
WO2018229098A1 (en) * 2017-06-14 2018-12-20 Moteurs Leroy-Somer Twisted stator and manufacturing method
FR3067879A1 (en) * 2017-06-14 2018-12-21 Moteurs Leroy-Somer ROTARY STATOR AND METHOD OF MANUFACTURE

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