JPS5696809A - Dc electromagnet - Google Patents

Dc electromagnet

Info

Publication number
JPS5696809A
JPS5696809A JP17214079A JP17214079A JPS5696809A JP S5696809 A JPS5696809 A JP S5696809A JP 17214079 A JP17214079 A JP 17214079A JP 17214079 A JP17214079 A JP 17214079A JP S5696809 A JPS5696809 A JP S5696809A
Authority
JP
Japan
Prior art keywords
coil
contact
iron core
parallel
diode
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
JP17214079A
Other languages
Japanese (ja)
Inventor
Kazumi Uchida
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP17214079A priority Critical patent/JPS5696809A/en
Publication of JPS5696809A publication Critical patent/JPS5696809A/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
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
    • H01F7/1833—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current by changing number of parallel-connected turns or windings

Landscapes

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

Abstract

PURPOSE:To enhance the reliability of the DC electromagnet by providing a backward diode in parallel with a closing coil in a coil provided in a stationary iron core and a forward diode between the closing coil and a normally closed auxiliary contact provided at a movable iron core, thereby eliminating a contact adjustment. CONSTITUTION:The closing coil 6 and a holding coil 7 are wound on the stationary iron core 10, and a main contact 12 for an electromagnetic contactor or the like becoming a load and the normally closed auxiliary contact 3 are provided at the movable iron core 11 confronted with the iron core 10. When the coils 6 and 7 are connected in parallel through a switch 4 with a power source 5 in this construction, a diode 8 is so connected as to be in parallel only with the coil 6 and in reverse direction with respect to the power source 5, and the forward diode 9 is connected to the contact 3 in series therewith. Thus, the variation in the attracting the coil 6 to the coil 7 to thereby smooth the override of the main contact 12 and to eliminate the off adjustment of the auxliary contact 3.
JP17214079A 1979-12-29 1979-12-29 Dc electromagnet Pending JPS5696809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17214079A JPS5696809A (en) 1979-12-29 1979-12-29 Dc electromagnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17214079A JPS5696809A (en) 1979-12-29 1979-12-29 Dc electromagnet

Publications (1)

Publication Number Publication Date
JPS5696809A true JPS5696809A (en) 1981-08-05

Family

ID=15936300

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17214079A Pending JPS5696809A (en) 1979-12-29 1979-12-29 Dc electromagnet

Country Status (1)

Country Link
JP (1) JPS5696809A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119291U (en) * 1983-02-01 1984-08-11 松下電器産業株式会社 Driving device for washing machine drain valve
JPS59131114U (en) * 1983-02-22 1984-09-03 松下電器産業株式会社 DC solenoid drive device
WO2012176505A1 (en) * 2011-06-20 2012-12-27 日産自動車株式会社 Electromagnetic relay
JP2015032443A (en) * 2013-08-02 2015-02-16 パナソニック株式会社 Electromagnetic relay

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119291U (en) * 1983-02-01 1984-08-11 松下電器産業株式会社 Driving device for washing machine drain valve
JPH0217585Y2 (en) * 1983-02-01 1990-05-16
JPS59131114U (en) * 1983-02-22 1984-09-03 松下電器産業株式会社 DC solenoid drive device
JPS6244504Y2 (en) * 1983-02-22 1987-11-25
WO2012176505A1 (en) * 2011-06-20 2012-12-27 日産自動車株式会社 Electromagnetic relay
JPWO2012176505A1 (en) * 2011-06-20 2015-02-23 日産自動車株式会社 Electromagnetic relay
US9105431B2 (en) 2011-06-20 2015-08-11 Nissan Motor Co., Ltd. Electromagnetic relay
JP2015032443A (en) * 2013-08-02 2015-02-16 パナソニック株式会社 Electromagnetic relay

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