JPS5688661A - Small dc motor - Google Patents

Small dc motor

Info

Publication number
JPS5688661A
JPS5688661A JP16544379A JP16544379A JPS5688661A JP S5688661 A JPS5688661 A JP S5688661A JP 16544379 A JP16544379 A JP 16544379A JP 16544379 A JP16544379 A JP 16544379A JP S5688661 A JPS5688661 A JP S5688661A
Authority
JP
Japan
Prior art keywords
yoke
magnetic
cutout
pole
zero
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.)
Granted
Application number
JP16544379A
Other languages
Japanese (ja)
Other versions
JPS6018185B2 (en
Inventor
Masanori Morisawa
Yoshio Yamada
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP16544379A priority Critical patent/JPS6018185B2/en
Publication of JPS5688661A publication Critical patent/JPS5688661A/en
Publication of JPS6018185B2 publication Critical patent/JPS6018185B2/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
    • H02K23/40—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the arrangement of the magnet circuits

Landscapes

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

Abstract

PURPOSE:To reduce the ripple of a counterelectromotive force induced at an armature winding by forming a portion having large magnetic reluctance on one position on the periphery of a yoke. CONSTITUTION:When magnetic flux emerged from an N pole of a magnet 4 crosses a coil 1, passes a yoke 8, crosses the coil 1 and returns to an S pole, there are two magnetic paths A and B in which the magnetic flux passes through the yoke 8. The cutout of a groove 13 is formed at a part on the circular periphery of the yoke 8 of these two magnetic paths, thereby increasing the magnetic reluctance thereat. When the angle is so set as to be zero when the yoke 8 is brought into the position of the N pole at the cutout and it is rotated one revolution, the ripple voltage can be set at zero at six points. Accordingly, the cutout of the yoke 8 is fixedly disposed at any of the six points. When assembled, there can be obtained a motor in which the ripple can be set at zero.
JP16544379A 1979-12-19 1979-12-19 small dc motor Expired JPS6018185B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16544379A JPS6018185B2 (en) 1979-12-19 1979-12-19 small dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16544379A JPS6018185B2 (en) 1979-12-19 1979-12-19 small dc motor

Publications (2)

Publication Number Publication Date
JPS5688661A true JPS5688661A (en) 1981-07-18
JPS6018185B2 JPS6018185B2 (en) 1985-05-09

Family

ID=15812524

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16544379A Expired JPS6018185B2 (en) 1979-12-19 1979-12-19 small dc motor

Country Status (1)

Country Link
JP (1) JPS6018185B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999044273A1 (en) * 1998-02-28 1999-09-02 Robert Bosch Gmbh Electric motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999044273A1 (en) * 1998-02-28 1999-09-02 Robert Bosch Gmbh Electric motor

Also Published As

Publication number Publication date
JPS6018185B2 (en) 1985-05-09

Similar Documents

Publication Publication Date Title
CH621455GA3 (en)
GB989335A (en) Improvements in or relating to dynamo-electric machines
JPS5568870A (en) Rectilinear-moving electric machine
JPS5499910A (en) Electric motor
JPS5688661A (en) Small dc motor
JPS5674080A (en) Linear pulse motor
FR2382127A1 (en) Single phase stepping motor for watches - has rotor of magnetically soft material with high coercive force, with tooth-shaped main and auxiliary poles
JPS55163813A (en) Magnetic circuit
JPS5388108A (en) Direct current brush-less motors
JPS5367819A (en) Poled motor
JPS5736570A (en) Dc motor
JPS5574347A (en) Electrical rotary machine
JPS56148768A (en) Linear tracking arm assembly
JPS57162960A (en) Dc brushless motor
JPS5534802A (en) Dc brushless motor
JPS5367818A (en) Voice coil type linear motor
JPS5389911A (en) Dc brushless motor
JPS53135409A (en) Armature winding of linear motor
JPS56117570A (en) Brushless direct current motor
JPS5379208A (en) Armature windings
JPS6431014A (en) Tuned dry gyro equipped with orthogonality compensating torquer
JPS5653568A (en) Motor with auxiliary stator
JPS5529246A (en) Dc motor
JPS5389912A (en) Dc brushless motor
JPS55166464A (en) Manufacture of stator for magneto field type dc motor