GB1205013A - Improvements in or relating to electric motors - Google Patents

Improvements in or relating to electric motors

Info

Publication number
GB1205013A
GB1205013A GB4313966A GB4313966A GB1205013A GB 1205013 A GB1205013 A GB 1205013A GB 4313966 A GB4313966 A GB 4313966A GB 4313966 A GB4313966 A GB 4313966A GB 1205013 A GB1205013 A GB 1205013A
Authority
GB
United Kingdom
Prior art keywords
field
casing
rotor
sept
channels
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
GB4313966A
Inventor
Ronald Frederick Glenister
William Henry Cooper
Kenneth Edward Murton
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 GB4313966A priority Critical patent/GB1205013A/en
Publication of GB1205013A publication Critical patent/GB1205013A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/12—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using detecting coils using the machine windings as detecting coil

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc Machiner (AREA)

Abstract

1,205,013. Electric motors. SMITHS INDUSTRIES Ltd. 27 Sept., 1967 [27 Sept., 1966], No. 43139/66. Heading H2A. The permanent-magnet rotor 12 of an electric motor is rotated by the field of coreless stator coils 20 wound round the motor casing. This casing is formed of two identical plastic parts 10 which fit together to enclose the rotor and which are provided with rotor spindle bearings 16. Each casing part has a central flange embodying the bolt holes 23, 24, and two side flanges 18 providing two channels 19 for the field coils 20. A printed-circuit board 32 secured by a screw 31 carries a capacitor 33 and transistor 41 interconnected to the field coils 20 and a trigger coil 38 wound in one of the channels 19, in conventional manner. Each field coil may have a separate transistor and trigger coil so that they may operate alternately (Fig. 9, not shown).
GB4313966A 1966-09-27 1966-09-27 Improvements in or relating to electric motors Expired GB1205013A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4313966A GB1205013A (en) 1966-09-27 1966-09-27 Improvements in or relating to electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4313966A GB1205013A (en) 1966-09-27 1966-09-27 Improvements in or relating to electric motors

Publications (1)

Publication Number Publication Date
GB1205013A true GB1205013A (en) 1970-09-09

Family

ID=10427480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4313966A Expired GB1205013A (en) 1966-09-27 1966-09-27 Improvements in or relating to electric motors

Country Status (1)

Country Link
GB (1) GB1205013A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514582A1 (en) * 1981-10-08 1983-04-15 Artus BRUSHLESS ELECTRIC MICROMOTOR
FR2514250A1 (en) * 1981-10-08 1983-04-15 Artus HANDPIECE WITH INTEGRATED MOTOR

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514582A1 (en) * 1981-10-08 1983-04-15 Artus BRUSHLESS ELECTRIC MICROMOTOR
FR2514250A1 (en) * 1981-10-08 1983-04-15 Artus HANDPIECE WITH INTEGRATED MOTOR

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Legal Events

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