GB948013A - The ventilation of asynchronous electric motors - Google Patents

The ventilation of asynchronous electric motors

Info

Publication number
GB948013A
GB948013A GB1862661A GB1862661A GB948013A GB 948013 A GB948013 A GB 948013A GB 1862661 A GB1862661 A GB 1862661A GB 1862661 A GB1862661 A GB 1862661A GB 948013 A GB948013 A GB 948013A
Authority
GB
United Kingdom
Prior art keywords
motor
fan
rotor
bars
auxiliary
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
GB1862661A
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Publication of GB948013A publication Critical patent/GB948013A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

948,013. Cooling dynamo-electric machines. SIEMENS-SCHUCKERTWERKE A.G. May 23, 1961 [May 20, 1960], No. 18626/61. Heading H2A. An asynchronous A.C. motor is cooled by a fan, mounted on the rotor shaft so as to rotate with respect to it, driven by an auxiliary fan motor, which acts as a commutatorless A.C. machine having a smaller number of poles than the main motor, and which has its " stator " rigidly connected to the rotor of the main motor and fed with the rotor current thereof. The arrangement is such that when the speed of the rotor of the main motor changes in one sense, the speed of the fan changes in the opposite sense. As described, some of the bars 7 of a 6-pole 3-phase squirrel cage motor 1 are extended axially along slots in the laminations 6 of the auxiliary motor driving the fan 4 and are shorted by a shorting ring 12. The remaining bars are shorted by an intermediate shorting ring 11 which is shaped to avoid shorting the extended bars a, b, c, d and a<SP>1</SP>, bl, c<SP>1</SP>, d<SP>1</SP>, Fig. 2. In order to produce a sinusoidal field in the auxiliary motor, the bars 7 may be bent over in the spaces between ring 11 and laminating 6. The auxiliary rotor 8, which may be for example a permanent magnet or reluctance type is mounted together with the fan 4 on a loose sleeve 9 on the shaft 3 so that the speed of rotation of the fan is equal to the sum of the two motor speeds.
GB1862661A 1960-05-20 1961-05-23 The ventilation of asynchronous electric motors Expired GB948013A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES68602A DE1112782B (en) 1960-05-20 1960-05-20 Ventilation of motors with slack runners by their own, co-rotating fan motor

Publications (1)

Publication Number Publication Date
GB948013A true GB948013A (en) 1964-01-29

Family

ID=7500414

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1862661A Expired GB948013A (en) 1960-05-20 1961-05-23 The ventilation of asynchronous electric motors

Country Status (3)

Country Link
CH (1) CH390375A (en)
DE (1) DE1112782B (en)
GB (1) GB948013A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139011A (en) * 1983-04-18 1984-10-31 Elektromotoren Z Elprom Asynchronous motor with two rotors
EP1657803A1 (en) * 2004-11-12 2006-05-17 Denso Corporation Automotive alternator with magnetic fluctuation suppressor for suppressing fluctuations in rotational movement
WO2008028996A1 (en) * 2006-09-07 2008-03-13 Abb Oy Arrangement for cooling an electrical machine

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5775545A (en) * 1980-10-24 1982-05-12 Mitsubishi Electric Corp Rotary electric machine
DE3309419A1 (en) * 1982-03-18 1983-09-22 Mitsubishi Denki K.K., Tokyo Generator
FR2525408B1 (en) * 1982-04-15 1985-07-19 Paris & Du Rhone DRIVE DEVICE FOR A COOLING FAN OF AN ELECTRIC ROTATING MACHINE
US5611415A (en) * 1994-02-25 1997-03-18 Horton, Inc. Rotational control apparatus
US5636719A (en) * 1994-02-25 1997-06-10 Horton, Inc. Rotational control apparatus
US5613586A (en) * 1994-02-25 1997-03-25 Horton, Inc. Rotational control apparatus
AU738945B2 (en) * 1997-02-12 2001-09-27 Horton Inc. Integral steel-aluminum ring for eddy current activated friction clutch
US8544627B2 (en) 2008-11-12 2013-10-01 Horton, Inc. Two-speed clutch and retro-fit kit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE516747C (en) * 1931-01-27 Siemens Schuckertwerke Akt Ges Forced ventilated asynchronous motor in which the cooling effect of the fan also increases with increasing power of the cooled motor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139011A (en) * 1983-04-18 1984-10-31 Elektromotoren Z Elprom Asynchronous motor with two rotors
EP1657803A1 (en) * 2004-11-12 2006-05-17 Denso Corporation Automotive alternator with magnetic fluctuation suppressor for suppressing fluctuations in rotational movement
US7560837B2 (en) 2004-11-12 2009-07-14 Denso Corporation Automotive alternator with rotary magnetic fluctuation suppressor
WO2008028996A1 (en) * 2006-09-07 2008-03-13 Abb Oy Arrangement for cooling an electrical machine
EP2059996A1 (en) * 2006-09-07 2009-05-20 ABB Oy Arrangement for cooling an electrical machine
EP2059996A4 (en) * 2006-09-07 2012-06-27 Abb Oy Arrangement for cooling an electrical machine

Also Published As

Publication number Publication date
DE1112782B (en) 1961-08-17
CH390375A (en) 1965-04-15

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