GB468826A - Improvements in and relating to electric motors - Google Patents

Improvements in and relating to electric motors

Info

Publication number
GB468826A
GB468826A GB4222/37A GB422237A GB468826A GB 468826 A GB468826 A GB 468826A GB 4222/37 A GB4222/37 A GB 4222/37A GB 422237 A GB422237 A GB 422237A GB 468826 A GB468826 A GB 468826A
Authority
GB
United Kingdom
Prior art keywords
core
stator
electric motors
feb
energized
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
GB4222/37A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB468826A publication Critical patent/GB468826A/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
    • H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
    • H02K7/1021—Magnetically influenced friction brakes
    • H02K7/1026—Magnetically influenced friction brakes using stray fields
    • H02K7/1028—Magnetically influenced friction brakes using stray fields axially attracting the brake armature in the frontal area of the magnetic core

Landscapes

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

Abstract

468,826. Electric motors. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 12, 1937, No. 4222. Convention date, Feb. 14, 1936. [Class 35] A motor has an axially fixed squirrel cage rotor shorter in length than the stator core and the stator bore also accommodates a magnetic core controlled by the stator winding and acting as a brake. In the form shown, the spring M urges the core K into engagement with the braking surface N when the stator winding C is de-energized but when the winding is re-energized the core K is attracted and the braking terminated. The rotor D may have a magnetic mass L to improve the magnetic circuit of the axially movable core K.
GB4222/37A 1936-02-14 1937-02-12 Improvements in and relating to electric motors Expired GB468826A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE468826X 1936-02-14

Publications (1)

Publication Number Publication Date
GB468826A true GB468826A (en) 1937-07-13

Family

ID=6540919

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4222/37A Expired GB468826A (en) 1936-02-14 1937-02-12 Improvements in and relating to electric motors

Country Status (1)

Country Link
GB (1) GB468826A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2480291A (en) * 1943-11-08 1949-08-30 Const Electro Mechaniques De S Electric motor and brake unit
US2482840A (en) * 1945-07-25 1949-09-27 Bendix Aviat Corp Electric motor brake
US2490456A (en) * 1947-09-16 1949-12-06 Floyd E Niederhiser Motor and brake device
US2536491A (en) * 1945-08-31 1951-01-02 Garrett Corp Motor having an electromagnetic brake
US2802121A (en) * 1956-02-21 1957-08-06 Cleveland Electric Motor Compa Fast-acting brake for motors and the like
EP0060898A1 (en) * 1980-09-30 1982-09-29 Institutul De Cercetare Pentru Industria Electrotehnica-Icpe Asynchronous electric brake-motor with double action, short-circuited rotor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2480291A (en) * 1943-11-08 1949-08-30 Const Electro Mechaniques De S Electric motor and brake unit
US2482840A (en) * 1945-07-25 1949-09-27 Bendix Aviat Corp Electric motor brake
US2536491A (en) * 1945-08-31 1951-01-02 Garrett Corp Motor having an electromagnetic brake
US2490456A (en) * 1947-09-16 1949-12-06 Floyd E Niederhiser Motor and brake device
US2802121A (en) * 1956-02-21 1957-08-06 Cleveland Electric Motor Compa Fast-acting brake for motors and the like
EP0060898A1 (en) * 1980-09-30 1982-09-29 Institutul De Cercetare Pentru Industria Electrotehnica-Icpe Asynchronous electric brake-motor with double action, short-circuited rotor
EP0060898A4 (en) * 1980-09-30 1983-02-04 Inst Cercetari Pentru Ind Asynchronous electric brake-motor with double action, short-circuited rotor.

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