GB1294465A - Improvements in induction motor drive units - Google Patents

Improvements in induction motor drive units

Info

Publication number
GB1294465A
GB1294465A GB53962/69A GB5396269A GB1294465A GB 1294465 A GB1294465 A GB 1294465A GB 53962/69 A GB53962/69 A GB 53962/69A GB 5396269 A GB5396269 A GB 5396269A GB 1294465 A GB1294465 A GB 1294465A
Authority
GB
United Kingdom
Prior art keywords
brake
rotor
rotor disc
stator coils
disc
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
GB53962/69A
Inventor
Anthony Walter Davey
Frederick Rodney Hen Whitcroft
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.)
Herbert Morris Ltd
Original Assignee
Herbert Morris 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 Herbert Morris Ltd filed Critical Herbert Morris Ltd
Priority to GB53962/69A priority Critical patent/GB1294465A/en
Priority to ZA707459A priority patent/ZA707459B/en
Priority to DE19702053993 priority patent/DE2053993A1/en
Priority to DE19707040638U priority patent/DE7040638U/en
Priority to FR7039616A priority patent/FR2068973A5/fr
Priority to CH1633570A priority patent/CH512852A/en
Publication of GB1294465A publication Critical patent/GB1294465A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/12—Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking
    • H02K7/125—Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking magnetically influenced
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
    • H02K7/1021—Magnetically influenced friction brakes
    • H02K7/1023—Magnetically influenced friction brakes using electromagnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
    • H02K7/1021—Magnetically influenced friction brakes
    • H02K7/1023—Magnetically influenced friction brakes using electromagnets
    • H02K7/1025—Magnetically influenced friction brakes using electromagnets using axial electromagnets with generally annular air gap

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Braking Arrangements (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

1294465 Induction motors HERBERT MORRIS Ltd 4 Nov 1970 [4 Nov 1969] 53962/69 Heading H2A A planar air gap induction motor has an electromagnetically operated brake associated with the rotor. Fig. 2 shows one embodiment wherein a cast iron or steel rotor disc 6 with an annular ring of low resistance material, such as aluminium or copper, co-operating with fixed stator coils (not shown), is fixed to a shaft 5 journalled in a casing 3 which carries a disc 12 with a brake lining 14 urged by springs 13 into engagement with the rotor disc. Electromagnets (not shown) for releasing the brake are provided. More than one discoidal rotor and more than one set of stator coils may be provided to increase the output of the motor. In an alternative braking arrangement, Fig. 5, spring-loaded brake shoes 17 released by a solenoid 18 co-operate with a drum 15 on the hub of the rotor disc, and according to a further embodiment, Fig. 6 (not shown), the rotor disc is axially displaceable on shaft 5, being withdrawn from engagement with fixed brake pads (14) against a spring (19) on energization of the stator coils.
GB53962/69A 1969-11-04 1969-11-04 Improvements in induction motor drive units Expired GB1294465A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB53962/69A GB1294465A (en) 1969-11-04 1969-11-04 Improvements in induction motor drive units
ZA707459A ZA707459B (en) 1969-11-04 1970-11-03 Improvements in disc drive units
DE19702053993 DE2053993A1 (en) 1969-11-04 1970-11-03 Squirrel cage motor
DE19707040638U DE7040638U (en) 1969-11-04 1970-11-03 SHORT-CIRCUIT RUNNING MOTOR
FR7039616A FR2068973A5 (en) 1969-11-04 1970-11-04
CH1633570A CH512852A (en) 1969-11-04 1970-11-04 Drive device with a short-circuit armature motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB53962/69A GB1294465A (en) 1969-11-04 1969-11-04 Improvements in induction motor drive units

Publications (1)

Publication Number Publication Date
GB1294465A true GB1294465A (en) 1972-10-25

Family

ID=10469539

Family Applications (1)

Application Number Title Priority Date Filing Date
GB53962/69A Expired GB1294465A (en) 1969-11-04 1969-11-04 Improvements in induction motor drive units

Country Status (5)

Country Link
CH (1) CH512852A (en)
DE (2) DE7040638U (en)
FR (1) FR2068973A5 (en)
GB (1) GB1294465A (en)
ZA (1) ZA707459B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006058688A2 (en) * 2004-12-01 2006-06-08 Zf Friedrichshafen Ag Adjustable hysteresis driver
CN113812072A (en) * 2019-04-18 2021-12-17 帕克-汉尼芬公司 Electric motor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH665065A5 (en) * 1982-11-09 1988-04-15 Mavilor Syst Sa ELECTRIC MOTOR EQUIPPED WITH FRICTION BRAKE.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006058688A2 (en) * 2004-12-01 2006-06-08 Zf Friedrichshafen Ag Adjustable hysteresis driver
WO2006058688A3 (en) * 2004-12-01 2006-09-21 Zahnradfabrik Friedrichshafen Adjustable hysteresis driver
US7841456B2 (en) 2004-12-01 2010-11-30 2F Friedrichshafen Ag Adjustable hysteresis driver
CN113812072A (en) * 2019-04-18 2021-12-17 帕克-汉尼芬公司 Electric motor

Also Published As

Publication number Publication date
DE7040638U (en) 1971-03-04
FR2068973A5 (en) 1971-09-03
CH512852A (en) 1971-09-15
ZA707459B (en) 1971-07-28
DE2053993A1 (en) 1971-05-19

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees