GB404094A - Improvements in or relating to self-starting synchronous motors - Google Patents

Improvements in or relating to self-starting synchronous motors

Info

Publication number
GB404094A
GB404094A GB2669132A GB2669132A GB404094A GB 404094 A GB404094 A GB 404094A GB 2669132 A GB2669132 A GB 2669132A GB 2669132 A GB2669132 A GB 2669132A GB 404094 A GB404094 A GB 404094A
Authority
GB
United Kingdom
Prior art keywords
rotor
poles
stator
self
spindle
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
GB2669132A
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
Priority to GB2669132A priority Critical patent/GB404094A/en
Publication of GB404094A publication Critical patent/GB404094A/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
    • H02K7/118—Structural association with clutches, brakes, gears, pulleys or mechanical starters with starting devices
    • H02K7/1185—Structural association with clutches, brakes, gears, pulleys or mechanical starters with starting devices with a mechanical one-way direction control, i.e. with means for reversing the direction of rotation of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K21/145—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having an annular armature coil
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/12—Transversal flux machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

404,094. Motors. GRASEBY, R. C., Venner Works, Kingston By-Pass Road, New Malden, Surrey. Sept. 26, 1932, No. 26691. [Class 35.] Rotary machines.-A self-starting synchronous motor with unshaded poles consists of a soft iron stator .adapted to be supplied with single-phase current to cause adjacent poles to be of opposite polarity and a polarised rotor of which adjacent poles are of opposite polarity ; the rotor and stator are relatively unbalanced either magnetically or dynamically, the air gap being uniform, and the weight of the rotor is such that it will start rotating when current is supplied to the stator coil, a mechanical check being provided to prevent rotation in one direction. The slator consists of two rings 3, 5 formed with teeth 9 and embracing the coil 11. In the form shown the rotor consists of a permanent magnet 13 with poles 15, each pole being subdivided into two sub-poles 16, 17. Magnetic unbalance in this construction is obtained by removing a small amount of material from one side of some of the poles. Alternatively, the weight of the rotor may be unbalanced. The mechanical check comprises a double cam 2a on the spindle 21 co-operating with balls 31 and a fixed collar 25. In a modification, the check acts on a second shaft geared down from the rotor spindle.
GB2669132A 1932-09-26 1932-09-26 Improvements in or relating to self-starting synchronous motors Expired GB404094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2669132A GB404094A (en) 1932-09-26 1932-09-26 Improvements in or relating to self-starting synchronous motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2669132A GB404094A (en) 1932-09-26 1932-09-26 Improvements in or relating to self-starting synchronous motors

Publications (1)

Publication Number Publication Date
GB404094A true GB404094A (en) 1934-01-11

Family

ID=10247667

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2669132A Expired GB404094A (en) 1932-09-26 1932-09-26 Improvements in or relating to self-starting synchronous motors

Country Status (1)

Country Link
GB (1) GB404094A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743761C (en) * 1939-01-05 1944-06-13 Siemens Ag Backstop for synchronous small motors with countershaft
DE1046753B (en) * 1954-09-09 1958-12-18 Licentia Gmbh Self-starting synchronous small motor with an excitation coil on the same axis next to one end of the runner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743761C (en) * 1939-01-05 1944-06-13 Siemens Ag Backstop for synchronous small motors with countershaft
DE1046753B (en) * 1954-09-09 1958-12-18 Licentia Gmbh Self-starting synchronous small motor with an excitation coil on the same axis next to one end of the runner

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