JPS5680104A - Attracting type electromagnet - Google Patents

Attracting type electromagnet

Info

Publication number
JPS5680104A
JPS5680104A JP15759279A JP15759279A JPS5680104A JP S5680104 A JPS5680104 A JP S5680104A JP 15759279 A JP15759279 A JP 15759279A JP 15759279 A JP15759279 A JP 15759279A JP S5680104 A JPS5680104 A JP S5680104A
Authority
JP
Japan
Prior art keywords
permalloy
ferromagnetic materials
attracting force
electromagnet
separating
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
JP15759279A
Other languages
Japanese (ja)
Inventor
Hiroaki Kato
Yoshio Kawakami
Junji Hamana
Atsushi Goto
Tetsuya Sato
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.)
Canon Inc
Canon Electronics Inc
Original Assignee
Canon Inc
Canon Electronics Inc
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 Canon Inc, Canon Electronics Inc filed Critical Canon Inc
Priority to JP15759279A priority Critical patent/JPS5680104A/en
Publication of JPS5680104A publication Critical patent/JPS5680104A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/081—Magnetic constructions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F2003/106—Magnetic circuits using combinations of different magnetic materials

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)

Abstract

PURPOSE:To increase the attracting force of an electromagnet and the separating speed thereof by employing two or more types of ferromagnetic materials of different properties in combination as a magnetic core. CONSTITUTION:Ferromagnetic materials having different properties such as saturated magnetic flux density, corcive force and residual magnetic flux density and so forth are composed in mixture, thereby forming a magnetic core. For example, a permalloy 45 having large attracting force and permalloy 78 having large separating velocity are employed. permalloy 45 is used at 3a, 3c, 5a, 5c and the permalloy 78 are used at 3b, 5b, thereby forming an armature 3 and a yoke 5. Thus, the attracting force and separating velocity of the electromagnet are increased and are utilized for the shutter of a camera or the like. Further, ferromagnetic materials having different hardnesses are combined, and harder material is used for a yoke and softer material is used for the contacts 50b, 51b of the armature, thereby enhancing the contacting strength.
JP15759279A 1979-12-05 1979-12-05 Attracting type electromagnet Pending JPS5680104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15759279A JPS5680104A (en) 1979-12-05 1979-12-05 Attracting type electromagnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15759279A JPS5680104A (en) 1979-12-05 1979-12-05 Attracting type electromagnet

Publications (1)

Publication Number Publication Date
JPS5680104A true JPS5680104A (en) 1981-07-01

Family

ID=15653072

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15759279A Pending JPS5680104A (en) 1979-12-05 1979-12-05 Attracting type electromagnet

Country Status (1)

Country Link
JP (1) JPS5680104A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63229804A (en) * 1987-03-19 1988-09-26 Mic Kogyo Kk Electromagnetic actuator
EP0936636A2 (en) * 1998-02-10 1999-08-18 DaimlerChrysler AG Electromagnet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63229804A (en) * 1987-03-19 1988-09-26 Mic Kogyo Kk Electromagnetic actuator
EP0936636A2 (en) * 1998-02-10 1999-08-18 DaimlerChrysler AG Electromagnet
EP0936636A3 (en) * 1998-02-10 2000-08-16 DaimlerChrysler AG Electromagnet

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