JPS5579670A - Dc motor - Google Patents

Dc motor

Info

Publication number
JPS5579670A
JPS5579670A JP15349478A JP15349478A JPS5579670A JP S5579670 A JPS5579670 A JP S5579670A JP 15349478 A JP15349478 A JP 15349478A JP 15349478 A JP15349478 A JP 15349478A JP S5579670 A JPS5579670 A JP S5579670A
Authority
JP
Japan
Prior art keywords
rotor
pole pieces
bearing
magnetic field
poles
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.)
Pending
Application number
JP15349478A
Other languages
Japanese (ja)
Inventor
Naoto Noguchi
Etsuji Asami
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 JP15349478A priority Critical patent/JPS5579670A/en
Publication of JPS5579670A publication Critical patent/JPS5579670A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a DC motor with high efficiency and output through increasing the effective conductor length, by providing pole pieces which constitute the peripheral part and both sides of an annular maynetic field and are located at its poles and by placing the pole pieces in a rotor so that clearances are defined between the rotor and the peripheral part and both sides of the field system.
CONSTITUTION: Pole pieces 3 are provided at the poles of a magnetic field 2 made of a disc-shaped permanent magnet magnetized in the radial direction. The magnetic field 2 is secured on a bearing 4 mounted on a rotary shaft 5. A commutator 6 connected with a rotor 1 is mounted on the rotary shaft 5. The bearing 4 is coupled with an upper lid 7 held by a lower lid 8. The magnetic field 2 having the pole pieces 3 is set in the rotor 1 so that minute clearances are defined between the rotor 1 and the pole pieces and between the bearing 4 and the rotor. As a result, the effective conductor length which contributes to causing the torque is increased and the efficiency and output are raised.
COPYRIGHT: (C)1980,JPO&Japio
JP15349478A 1978-12-11 1978-12-11 Dc motor Pending JPS5579670A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15349478A JPS5579670A (en) 1978-12-11 1978-12-11 Dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15349478A JPS5579670A (en) 1978-12-11 1978-12-11 Dc motor

Publications (1)

Publication Number Publication Date
JPS5579670A true JPS5579670A (en) 1980-06-16

Family

ID=15563777

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15349478A Pending JPS5579670A (en) 1978-12-11 1978-12-11 Dc motor

Country Status (1)

Country Link
JP (1) JPS5579670A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60241761A (en) * 1984-03-30 1985-11-30 Aisin Seiki Co Ltd Thin dc motor
WO2000062401A1 (en) * 1999-04-12 2000-10-19 Namiki Seimitsu Houseki Kabushiki Kaisha Coil for small-sized motor and small-sized flat motor
US6940206B2 (en) * 2002-12-17 2005-09-06 Kabushiki Kaisha Asaba Coreless motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60241761A (en) * 1984-03-30 1985-11-30 Aisin Seiki Co Ltd Thin dc motor
JPH0570377B2 (en) * 1984-03-30 1993-10-05 Aisin Seiki
WO2000062401A1 (en) * 1999-04-12 2000-10-19 Namiki Seimitsu Houseki Kabushiki Kaisha Coil for small-sized motor and small-sized flat motor
US6940206B2 (en) * 2002-12-17 2005-09-06 Kabushiki Kaisha Asaba Coreless motor

Similar Documents

Publication Publication Date Title
WO1988004883A3 (en) Generator system with integral permanent magnet generator exciter
KR880701032A (en) Single-stage, two-phase or four-phase synchronous electric motors
JPS5579670A (en) Dc motor
FR2455385A1 (en) DIRECT CURRENT FAN MOTOR WITHOUT MANIFOLD
SE8205623D0 (en) RELUCTANCE
ATE77014T1 (en) SINGLE-PHASE SYNCHRONOUS MOTOR WITH A BI-POLAR, PERMANENT MAGNETIC ROTOR AND WITH AN EDDY CURRENT INTERMEDIATE ROTOR.
JPS54148214A (en) Permanent-magnet-type synchronous motor
JPS5399408A (en) Low speed motor
JPS5785568A (en) Step motor
JPS5372108A (en) Permanent magnet type electric rotary machine
JPS57180363A (en) Motor
ATE16664T1 (en) ELECTRIC MOTOR.
JPS5566269A (en) Rotating apparatus
SU1640797A1 (en) Dc electric motor
JPS5529235A (en) Dc motor
JPS5518886A (en) Dc motor
JPS5561284A (en) Magnetic-force revolving apparatus
SE8503134D0 (en) ELECTRIC S C VALVE ENGINE
JPS5653568A (en) Motor with auxiliary stator
IT8721948A0 (en) SUBMERSIBLE MOTOR WITH OUTPUT SHAFT AS A RADIAL FIELD ROTOR WITH PERMANENT MAGNET EXCITATION AND WITH VERTICAL STATOR.
GB1262213A (en) An electric machine
JPS51119915A (en) Motor for clock
JPS5691667A (en) Small motor containing frequency generator
JPS5523720A (en) Electromagnetic coupling
JPS5571165A (en) Direct current motor