JPS57118610A - Ac electromagnet - Google Patents

Ac electromagnet

Info

Publication number
JPS57118610A
JPS57118610A JP559381A JP559381A JPS57118610A JP S57118610 A JPS57118610 A JP S57118610A JP 559381 A JP559381 A JP 559381A JP 559381 A JP559381 A JP 559381A JP S57118610 A JPS57118610 A JP S57118610A
Authority
JP
Japan
Prior art keywords
iron cores
magnetic
humming
armature
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.)
Pending
Application number
JP559381A
Other languages
Japanese (ja)
Inventor
Tsutomu Taniguchi
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.)
Omron Corp
Original Assignee
Tateisi Electronics Co
Omron Tateisi Electronics Co
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 Tateisi Electronics Co, Omron Tateisi Electronics Co filed Critical Tateisi Electronics Co
Priority to JP559381A priority Critical patent/JPS57118610A/en
Publication of JPS57118610A publication Critical patent/JPS57118610A/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
    • H01F7/10—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current

Landscapes

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

Abstract

PURPOSE:To prevent from humming, suppress heat generation, and enable cost reduction, by forming a pair of magnetic circuits between an iron core around which an exciting coil is wound and an armature, and by providing a permanent magnet along the circuit within one magnetic circuit. CONSTITUTION:Iron cores 21, 22 are insulated and coupled magnetically by a shielding material 23 like plastics. A pair of magnetic circuits 27, 28 are formed by the iron cores 21, 22 and an armature 24 which corresponds both ends 25a, 25b to upper and lower magnetic poles 26a, 26b of one side of iron cores 21, 22. An exciting coil 30 is wound around a spool 29 at the center of iron cores 21, 22. A notch is formed on one iron core 21, and a permanent magnet 31 is inserted herein along a magnetic circuit 27. This abolishes a shading coil, prevents humming, and suppresses heat generation. Omitting the calking work enables cost reduction.
JP559381A 1981-01-16 1981-01-16 Ac electromagnet Pending JPS57118610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP559381A JPS57118610A (en) 1981-01-16 1981-01-16 Ac electromagnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP559381A JPS57118610A (en) 1981-01-16 1981-01-16 Ac electromagnet

Publications (1)

Publication Number Publication Date
JPS57118610A true JPS57118610A (en) 1982-07-23

Family

ID=11615525

Family Applications (1)

Application Number Title Priority Date Filing Date
JP559381A Pending JPS57118610A (en) 1981-01-16 1981-01-16 Ac electromagnet

Country Status (1)

Country Link
JP (1) JPS57118610A (en)

Similar Documents

Publication Publication Date Title
GB685416A (en) Improvements in or relating to stationary electrical induction apparatus
US4746891A (en) High saturation three coil current transformer
GB1178079A (en) Improvements in or relating to Electromagnetic Separators
KR890015306A (en) Switching Mode Power Transformer
MY110066A (en) Electromagnetic assembly
GB1013329A (en) Improvements relating to annular permanent magnets for direct-current motors
JPS61109423A (en) Cuttent limiter
JPS57118610A (en) Ac electromagnet
ES8202450A1 (en) Electromagnetic devices
JPS6433909A (en) Electromagnet
JPS57107014A (en) Ac electromagnet
SE325078B (en)
JPS5796512A (en) Inductor
JPS57107012A (en) Ac electromagnet
GB1332489A (en) Laminar core for transformers or induction coils
JPS6329811B2 (en)
JPS56157187A (en) Adjusting device of magnetic convergence
SU983905A2 (en) Dc machine
SU1065977A1 (en) Compound excitation electric machine
JPS5688636A (en) Ring wound armature for synchronous machine
JPS57106013A (en) Composit transformer
JPS57118611A (en) Bistable electromagnet device
JPS5799714A (en) Polarized electromagnet
FR2356305A1 (en) High flux electromagnetic pump - has three section core with air gap in on leg for pumping liq. sodium in 1.5 Tesla field
JPS54148224A (en) Zero-phase-sequence current transformer