JPS55133662A - Magnetism-resistant structure for step motor for watch - Google Patents

Magnetism-resistant structure for step motor for watch

Info

Publication number
JPS55133662A
JPS55133662A JP4014279A JP4014279A JPS55133662A JP S55133662 A JPS55133662 A JP S55133662A JP 4014279 A JP4014279 A JP 4014279A JP 4014279 A JP4014279 A JP 4014279A JP S55133662 A JPS55133662 A JP S55133662A
Authority
JP
Japan
Prior art keywords
yoke
stator plate
permiability
contact surface
magnetism
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
JP4014279A
Other languages
English (en)
Inventor
Hironori Nomura
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch 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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP4014279A priority Critical patent/JPS55133662A/ja
Publication of JPS55133662A publication Critical patent/JPS55133662A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/01—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for shielding from electromagnetic fields, i.e. structural association with shields
    • H02K11/014—Shields associated with stationary parts, e.g. stator cores
    • H02K11/0141—Shields associated with casings, enclosures or brackets

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)
JP4014279A 1979-04-03 1979-04-03 Magnetism-resistant structure for step motor for watch Pending JPS55133662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4014279A JPS55133662A (en) 1979-04-03 1979-04-03 Magnetism-resistant structure for step motor for watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4014279A JPS55133662A (en) 1979-04-03 1979-04-03 Magnetism-resistant structure for step motor for watch

Publications (1)

Publication Number Publication Date
JPS55133662A true JPS55133662A (en) 1980-10-17

Family

ID=12572519

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4014279A Pending JPS55133662A (en) 1979-04-03 1979-04-03 Magnetism-resistant structure for step motor for watch

Country Status (1)

Country Link
JP (1) JPS55133662A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH675047GA3 (en) * 1988-10-19 1990-08-31 Stepping motor for clock - includes additional pole piece to attenuate interaction between external magnetic field and rotor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH675047GA3 (en) * 1988-10-19 1990-08-31 Stepping motor for clock - includes additional pole piece to attenuate interaction between external magnetic field and rotor

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