JPS5776803A - Solenoid for detecting short circuit - Google Patents

Solenoid for detecting short circuit

Info

Publication number
JPS5776803A
JPS5776803A JP55152894A JP15289480A JPS5776803A JP S5776803 A JPS5776803 A JP S5776803A JP 55152894 A JP55152894 A JP 55152894A JP 15289480 A JP15289480 A JP 15289480A JP S5776803 A JPS5776803 A JP S5776803A
Authority
JP
Japan
Prior art keywords
plunger
yoke
iron core
coil
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
JP55152894A
Other languages
Japanese (ja)
Inventor
Yoichi Yokoyama
Mamoru Tateno
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP55152894A priority Critical patent/JPS5776803A/en
Publication of JPS5776803A publication Critical patent/JPS5776803A/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
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
    • 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
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
    • H01H71/322—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with plunger type armature

Landscapes

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

Abstract

PURPOSE:To improve the reliability of the action of a circuit breaker by providing at one end of a yoke a permanent magnet surrounding a sliding plunger which is placed inside a coil within the yoke thereby realizing a high speed action. CONSTITUTION:A coil is wound around a hollow holder 2 inside a yoke 1. An iron core 7 is mounted on one end of the yoke 1 and a plunger pin 8 at one end of the sliding plunger 10 pieces the iron core 7.A permanent manget 14 is placed between the other end of the yoke 1 and a magnetic plate 13 surrounding the plunber. A T- shaped operating rold 11 extended from the plunger 10 drives the breaker. The plunger 10 is normally positioned at the right by the magnetic force of the permanent magnet 10 and is drawn to tje lefe when drawn toward the iron core 7 due to sudden decrease of magnetic force caused by the movement of the plunger.
JP55152894A 1980-10-30 1980-10-30 Solenoid for detecting short circuit Pending JPS5776803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55152894A JPS5776803A (en) 1980-10-30 1980-10-30 Solenoid for detecting short circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55152894A JPS5776803A (en) 1980-10-30 1980-10-30 Solenoid for detecting short circuit

Publications (1)

Publication Number Publication Date
JPS5776803A true JPS5776803A (en) 1982-05-14

Family

ID=15550448

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55152894A Pending JPS5776803A (en) 1980-10-30 1980-10-30 Solenoid for detecting short circuit

Country Status (1)

Country Link
JP (1) JPS5776803A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103165355A (en) * 2011-12-08 2013-06-19 沈阳工业大学 Rapid quadrate monostable permanent magnet operating mechanism capable of separating brake manually

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103165355A (en) * 2011-12-08 2013-06-19 沈阳工业大学 Rapid quadrate monostable permanent magnet operating mechanism capable of separating brake manually

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