GB1198646A - Improved Miniature D.C. Motor or Dynamotor. - Google Patents

Improved Miniature D.C. Motor or Dynamotor.

Info

Publication number
GB1198646A
GB1198646A GB4045267A GB4045267A GB1198646A GB 1198646 A GB1198646 A GB 1198646A GB 4045267 A GB4045267 A GB 4045267A GB 4045267 A GB4045267 A GB 4045267A GB 1198646 A GB1198646 A GB 1198646A
Authority
GB
United Kingdom
Prior art keywords
windings
motor
brushes
dynamotor
control circuit
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
GB4045267A
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.)
Tokyo Kagaku Co Ltd
Original Assignee
Tokyo Kagaku 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 Tokyo Kagaku Co Ltd filed Critical Tokyo Kagaku Co Ltd
Publication of GB1198646A publication Critical patent/GB1198646A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/66—Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/46—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage
    • G01P3/465—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage by using dynamo-electro tachometers or electric generator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/26—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the armature windings
    • H02K23/36—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the armature windings having two or more windings; having two or more commutators; having two or more stators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dc Machiner (AREA)

Abstract

1,198,646. D.C. motors and dynamotors TOKYO KAGAKU K.K. 5 Sept., 1967 [19 Dec., 1966], No. 40452/67. Heading H2A. A miniature D.C. motor or dynamotor comprises mounted within a magnetic case 1 a rotor 4 having on a common rotary shaft 5 a plurality of magnetic polepieces 6 each carrying at least two windings 7, 8 corresponding windings of each polepiece being connected to a respective commutator 9, 10 having brushes 11, 12 and mounted on the shaft, a stator consisting of a plurality of permanent magnets 3a, 3b each so mounted within the case that one of its poles confronts the polepieces, and a control circuit 13 including an amplifier whose input and output 14, 15 are connected to respective brushes 12, 11 and which maintains within limits the shaft speed substantially constant. The motor is powered by a D.C. source 16, and the brushes 12 in addition to supplying the control circuit may also provide a generator output for, e.g., teaching use. There may be more than two windings 7, 8 and corresponding commutators, and instead of the separate coils shown the windings may be in layers one upon the other, or wound in parallel.
GB4045267A 1966-12-19 1967-09-05 Improved Miniature D.C. Motor or Dynamotor. Expired GB1198646A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8336766 1966-12-19

Publications (1)

Publication Number Publication Date
GB1198646A true GB1198646A (en) 1970-07-15

Family

ID=13800440

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4045267A Expired GB1198646A (en) 1966-12-19 1967-09-05 Improved Miniature D.C. Motor or Dynamotor.

Country Status (1)

Country Link
GB (1) GB1198646A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2207294A (en) * 1987-07-20 1989-01-25 Johnson Electric Ind Mfg Winding layout between commutator and wound armature for an electric motor
GB2210208A (en) * 1987-09-21 1989-06-01 Johnson Electric Ind Mfg Commutation in electric motors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2207294A (en) * 1987-07-20 1989-01-25 Johnson Electric Ind Mfg Winding layout between commutator and wound armature for an electric motor
GB2210208A (en) * 1987-09-21 1989-06-01 Johnson Electric Ind Mfg Commutation in electric motors

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Legal Events

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