JPS55123105A - Electromagnet - Google Patents

Electromagnet

Info

Publication number
JPS55123105A
JPS55123105A JP2994379A JP2994379A JPS55123105A JP S55123105 A JPS55123105 A JP S55123105A JP 2994379 A JP2994379 A JP 2994379A JP 2994379 A JP2994379 A JP 2994379A JP S55123105 A JPS55123105 A JP S55123105A
Authority
JP
Japan
Prior art keywords
magnetic flux
current
electromagnet
gap
iron plate
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
JP2994379A
Other languages
Japanese (ja)
Inventor
Koji Ito
Kazutoshi Iwata
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2994379A priority Critical patent/JPS55123105A/en
Publication of JPS55123105A publication Critical patent/JPS55123105A/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

Landscapes

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

Abstract

PURPOSE:To obtain electromagnet simple in construction and satisfactory in response property by providing a structure whose electric resistance becomes large in the direction rectangular to the line which a magnetic flux passes in at leas one gap at magnet frame or armature. CONSTITUTION:Voltage is removed by deenergizing an exciting coil 1, however, an electromagnetic energy stored in an electromagnet appears in a circuit as current, and even if a transient current is attenuated by self-inductance L and resistance R of the exciting current 1 at time constant L/R, an eddy current is capable of working in the direction to prevent magnetic flux from decreasing in a magnet frame 2. However, the eddy current on this part will be suppressed by constituting a gap 3 with a laminated iron plate 10 and making the face of the iron plate 10 directional same as the magnetic flux, and thus the magnetic flux is extinguished quickly. Reponse property is improved accordingly.
JP2994379A 1979-03-16 1979-03-16 Electromagnet Pending JPS55123105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2994379A JPS55123105A (en) 1979-03-16 1979-03-16 Electromagnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2994379A JPS55123105A (en) 1979-03-16 1979-03-16 Electromagnet

Publications (1)

Publication Number Publication Date
JPS55123105A true JPS55123105A (en) 1980-09-22

Family

ID=12290059

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2994379A Pending JPS55123105A (en) 1979-03-16 1979-03-16 Electromagnet

Country Status (1)

Country Link
JP (1) JPS55123105A (en)

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