FR2398436A7 - AIR-COOLED ELECTRIC MOTOR - Google Patents

AIR-COOLED ELECTRIC MOTOR

Info

Publication number
FR2398436A7
FR2398436A7 FR7821483A FR7821483A FR2398436A7 FR 2398436 A7 FR2398436 A7 FR 2398436A7 FR 7821483 A FR7821483 A FR 7821483A FR 7821483 A FR7821483 A FR 7821483A FR 2398436 A7 FR2398436 A7 FR 2398436A7
Authority
FR
France
Prior art keywords
sheets
air
electric motor
cooled electric
stator
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
FR7821483A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR2398436A7 publication Critical patent/FR2398436A7/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
    • 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
    • H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for 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)
  • Motor Or Generator Frames (AREA)

Abstract

Dans ce moteur électrique à refroidissement par air, les tôles du stator possèdent un contour extérieur non circulaire, notamment polygonal, et les tôles sont avantageusement assemblées par groupes de trois qui sont décalés angulairement de manière que les angles ou sommets des plygones des tôles fassent saillie dans une large mesure. L'air de refroidissement peut ainsi entrer en contact avec les tôles du stator, non seulement par les tranches, mais également par la surface plane des parties saillantes qui permet d'utiliser des ventilateurs de plus faible puissance, de réduire ainsi le niveau de bruit et en même temps d'abaisser considérablement la température du moteur, comparativement à la technique classique.In this air-cooled electric motor, the stator sheets have a non-circular outer contour, in particular polygonal, and the sheets are advantageously assembled in groups of three which are angularly offset so that the angles or vertices of the plygons of the sheets protrude. to a large extent. The cooling air can thus come into contact with the stator sheets, not only through the edges, but also through the flat surface of the protrusions which allows the use of lower power fans, thus reducing the noise level. and at the same time to considerably lower the temperature of the engine, compared to the conventional technique.

FR7821483A 1977-07-20 1978-07-20 AIR-COOLED ELECTRIC MOTOR Expired FR2398436A7 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772732682 DE2732682A1 (en) 1977-07-20 1977-07-20 AIR-COOLED ELECTRIC MOTOR

Publications (1)

Publication Number Publication Date
FR2398436A7 true FR2398436A7 (en) 1979-02-16

Family

ID=6014334

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7821483A Expired FR2398436A7 (en) 1977-07-20 1978-07-20 AIR-COOLED ELECTRIC MOTOR

Country Status (4)

Country Link
DE (1) DE2732682A1 (en)
FR (1) FR2398436A7 (en)
GB (1) GB2001481A (en)
IT (1) IT1097872B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020182A1 (en) * 1979-06-04 1980-12-10 Xerox Corporation Liquid drop generation apparatus and method
FR2491269A1 (en) * 1980-09-26 1982-04-02 Thomson Brandt Async. electric motor with ducted ventilation - uses disc formed into duct to carry air radially outwards around stator winding of motor

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE851629L (en) * 1985-06-28 1986-12-28 Kollmorgen Ireland Ltd Electrical drive systems
US5173651A (en) * 1985-06-28 1992-12-22 Kollmorgen Technologies Corporation Electrical drive systems
GB2194104A (en) * 1986-08-15 1988-02-24 Marathon Electric Mfg Laminated stator core unit for dynamo-electric machine
JPH03222651A (en) * 1989-11-06 1991-10-01 Toshiba Corp Air-cooled induction motor
DE4003155A1 (en) * 1990-02-03 1991-08-29 Bosch Gmbh Robert ELECTRIC MACHINE WITH FOREIGN VENTILATION
IT1271659B (en) * 1994-07-13 1997-06-04 Europ Elec Motors Design Pack of magnetic plates for rotary electrical machines and the like, with enhanced cooling surface
EP2421126A1 (en) * 2010-08-20 2012-02-22 Siemens Aktiengesellschaft Stator system with a cooling arrangement
GB2499235A (en) 2012-02-10 2013-08-14 Rolls Royce Plc A cooling arrangement for an electrical machine
GB2499236A (en) 2012-02-10 2013-08-14 Rolls Royce Plc A cooling arrangement for an electrical machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020182A1 (en) * 1979-06-04 1980-12-10 Xerox Corporation Liquid drop generation apparatus and method
FR2491269A1 (en) * 1980-09-26 1982-04-02 Thomson Brandt Async. electric motor with ducted ventilation - uses disc formed into duct to carry air radially outwards around stator winding of motor

Also Published As

Publication number Publication date
IT1097872B (en) 1985-08-31
DE2732682A1 (en) 1979-02-01
IT7825880A0 (en) 1978-07-19
GB2001481A (en) 1979-01-31

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Legal Events

Date Code Title Description
ST Notification of lapse