JPS6464552A - Stepping motor - Google Patents

Stepping motor

Info

Publication number
JPS6464552A
JPS6464552A JP62220719A JP22071987A JPS6464552A JP S6464552 A JPS6464552 A JP S6464552A JP 62220719 A JP62220719 A JP 62220719A JP 22071987 A JP22071987 A JP 22071987A JP S6464552 A JPS6464552 A JP S6464552A
Authority
JP
Japan
Prior art keywords
stator
frame
stator yoke
yokes
permanent magnet
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
JP62220719A
Other languages
Japanese (ja)
Other versions
JPH07110125B2 (en
Inventor
Yasuhiro Akiba
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 JP62220719A priority Critical patent/JPH07110125B2/en
Publication of JPS6464552A publication Critical patent/JPS6464552A/en
Publication of JPH07110125B2 publication Critical patent/JPH07110125B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

PURPOSE:To reduce torque ripple by giving a difference between an inserting gap of an outer stator yoke and a frame, and an inserting gap of an inner stator yoke and a frame. CONSTITUTION:A stepping motor has a rotor 1 having a cylindrical permanent magnet 2 applied the multi-electrode magnetization to the periphery and the disc-like in and out stator yokes 3-4 having the pole teeth 3a and 4a, and the in and out stator yokes 3-4 are located in such a state that each of the pole teeth 3a and 4a is penetrated into each other. The outer diameter of a disc section 3b of the inner stator yoke 3 has a relation of an intermediate insertion against an inside diameter dimension of a frame 7, and an outer diameter dimension of the disc section 4b of the outer stator yoke 4 is a clearance insertion and support the gaps g. The stator coils 5 wound on an annular coil bobbin 6 are located between the in and out stator yokes 3-4. Accordingly, the occurrence of the deviation in the stopping position is eliminated by conforming a magnetic path of the flux from the permanent magnet 2 to a generation magnetic path at the time of stator coil excitation.
JP62220719A 1987-09-03 1987-09-03 Stepping motor Expired - Lifetime JPH07110125B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62220719A JPH07110125B2 (en) 1987-09-03 1987-09-03 Stepping motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62220719A JPH07110125B2 (en) 1987-09-03 1987-09-03 Stepping motor

Publications (2)

Publication Number Publication Date
JPS6464552A true JPS6464552A (en) 1989-03-10
JPH07110125B2 JPH07110125B2 (en) 1995-11-22

Family

ID=16755443

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62220719A Expired - Lifetime JPH07110125B2 (en) 1987-09-03 1987-09-03 Stepping motor

Country Status (1)

Country Link
JP (1) JPH07110125B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006320188A (en) * 2005-04-12 2006-11-24 Nidec Sankyo Corp Stepping motor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5963972A (en) * 1982-10-01 1984-04-11 Matsushita Electric Ind Co Ltd Stepping motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5963972A (en) * 1982-10-01 1984-04-11 Matsushita Electric Ind Co Ltd Stepping motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006320188A (en) * 2005-04-12 2006-11-24 Nidec Sankyo Corp Stepping motor

Also Published As

Publication number Publication date
JPH07110125B2 (en) 1995-11-22

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