GB1406488A - Electric motors - Google Patents

Electric motors

Info

Publication number
GB1406488A
GB1406488A GB681572A GB681572A GB1406488A GB 1406488 A GB1406488 A GB 1406488A GB 681572 A GB681572 A GB 681572A GB 681572 A GB681572 A GB 681572A GB 1406488 A GB1406488 A GB 1406488A
Authority
GB
United Kingdom
Prior art keywords
commutator
armature
plastics
springs
cover
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
GB681572A
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.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
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 Smiths Group PLC filed Critical Smiths Group PLC
Priority to GB681572A priority Critical patent/GB1406488A/en
Publication of GB1406488A publication Critical patent/GB1406488A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/14—Means for supporting or protecting brushes or brush holders
    • H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
    • H02K5/148—Slidably supported brushes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc Machiner (AREA)
  • Motor Or Generator Frames (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

1406488 Dynamoelectric machines SMITHS INDUSTRIES Ltd 2 March 1973 [14 Feb 1972] 6815/72 Heading H2A In an electric motor, a plurality of brushes 30 (only one shown) are mounted in a set of recesses 29 in a moulded plastics housing end cover 19, and are pressed against a commutator 11 by helical springs 34, each recess 29 being such as to extend right through the cover 19, but being closed on the outside by a leg portion 40 of an L-shaped electrical connector member 32 in engagement with a brush terminal 33. The main housing section is formed by a cylinder of magnetizable material 21 and a stamped mild steel end-plate 18. Two sintered bearings 16, 17 are acted on by two leaf-springs 37, 27, and the rotor shaft 12 which supports an armature 10 on the interior of a set of stator magnets 22 carries splines 13 for biting into both a plastics coating of the armature and also a plastics sleeve 15 of the commutator 11.
GB681572A 1972-02-14 1972-02-14 Electric motors Expired GB1406488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB681572A GB1406488A (en) 1972-02-14 1972-02-14 Electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB681572A GB1406488A (en) 1972-02-14 1972-02-14 Electric motors

Publications (1)

Publication Number Publication Date
GB1406488A true GB1406488A (en) 1975-09-17

Family

ID=9821260

Family Applications (1)

Application Number Title Priority Date Filing Date
GB681572A Expired GB1406488A (en) 1972-02-14 1972-02-14 Electric motors

Country Status (1)

Country Link
GB (1) GB1406488A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3617684A1 (en) * 1986-05-26 1987-12-03 Braun Ag ELECTRICAL DEVICE FOR PERSONAL NEEDS
FR2929462A1 (en) * 2008-03-26 2009-10-02 Valeo Equip Electr Moteur Rotor shaft for starter of motor vehicle, has connection zone provided at front end of longitudinal portion, and another connection zone provided on rotor pinion, where zones are mechanically fastened with each other
GB2495713A (en) * 2011-10-17 2013-04-24 Nidec Motors & Actuators Gmbh Germany DC brush motor for driving a cooling system fan

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3617684A1 (en) * 1986-05-26 1987-12-03 Braun Ag ELECTRICAL DEVICE FOR PERSONAL NEEDS
FR2929462A1 (en) * 2008-03-26 2009-10-02 Valeo Equip Electr Moteur Rotor shaft for starter of motor vehicle, has connection zone provided at front end of longitudinal portion, and another connection zone provided on rotor pinion, where zones are mechanically fastened with each other
GB2495713A (en) * 2011-10-17 2013-04-24 Nidec Motors & Actuators Gmbh Germany DC brush motor for driving a cooling system fan

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee