WO2020084829A1 - Électroaimant, commutateur électromagnétique et procédé de fabrication d'électroaimant - Google Patents

Électroaimant, commutateur électromagnétique et procédé de fabrication d'électroaimant Download PDF

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Publication number
WO2020084829A1
WO2020084829A1 PCT/JP2019/024024 JP2019024024W WO2020084829A1 WO 2020084829 A1 WO2020084829 A1 WO 2020084829A1 JP 2019024024 W JP2019024024 W JP 2019024024W WO 2020084829 A1 WO2020084829 A1 WO 2020084829A1
Authority
WO
WIPO (PCT)
Prior art keywords
iron core
spacer
electromagnet
fixed
welding
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.)
Ceased
Application number
PCT/JP2019/024024
Other languages
English (en)
Japanese (ja)
Inventor
一弘 庄野
秀憲 猿渡
山口　博
智彦 竹本
昇吾 曽田
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to KR1020217010882A priority Critical patent/KR102427376B1/ko
Priority to CN201980069192.2A priority patent/CN112889122B/zh
Priority to JP2020552513A priority patent/JP7002673B2/ja
Priority to TW108131211A priority patent/TWI688975B/zh
Publication of WO2020084829A1 publication Critical patent/WO2020084829A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements

Definitions

  • the present application relates to an electromagnet, an electromagnetic switch, and a method for manufacturing an electromagnet.
  • the present application discloses a technique for solving the above problems, and an object thereof is to provide an electromagnet, an electromagnetic switch, and a method for manufacturing an electromagnet that have high productivity and can be produced at low cost. To do.
  • the electromagnet disclosed in the present application is With a movable iron core, A fixed iron core arranged to face the movable iron core, An electromagnet having a drive coil wound around the fixed iron core, One of the movable iron core or the fixed iron core, On the surface facing the other iron core, a spacer made by processing a thin plate which is a single plate of austenitic stainless steel and is a JIS standard 2B material or a JIS standard 2D material, The spacer and the iron core are provided on at least one of the spacer and the iron core, and are welded and fixed to each other by a welding portion having a convex shape with respect to the other.
  • a non-magnetic thin plate-shaped spacer or iron core for preventing magnetism remaining in the fixed iron core and the movable iron core after the energization of the electromagnet is stopped. Since a plurality of protrusions are provided on at least one side and a current can be passed through the protrusions to weld the spacer and the iron core at a time, it is expected that the time for joining the iron core and the spacer will be significantly shortened and the productivity is high.
  • FIG. 9 is a two-sided view showing a modified example of the movable core according to the second embodiment.
  • FIG. 9 is a diagram showing an arrangement example of another protrusion according to the second embodiment. It is a figure which shows the point which positions a movable iron core and a spacer before welding using the positioning jig by Embodiment 5.
  • FIG. 16 is a flowchart showing a process of welding a spacer and a movable iron core according to the fifth embodiment. It is a figure which shows the dimensional relationship of the positioning jig and spacer by Embodiment 5, and is a figure which shows the state after positioning completion and before welding.
  • FIG. 19 is a diagram showing a state in which energization for welding according to the fifth embodiment is finished and welding is completed, but the electrodes are still applying pressure. It is a figure which shows the other example of the positioning jig by Embodiment 5.
  • the magnetic flux generated upward in the left fixed iron core 30a passes through the spacer 22a installed on the left side of the movable iron core 20 and reaches the movable iron core 20, and the magnetic flux moves from the left side to the right side inside the movable iron core 20. Flowing toward.
  • the magnetic flux reaching the right side of the movable iron core 20 passes through the spacer 22b and reaches the right fixed iron core 30b, and further the magnetic flux flows from the upper side to the lower side of the right fixed iron core 30b.
  • the magnetic flux that has reached the lower portion of the right fixed iron core 30b flows to the right side of the base plate 33, which is also made of a magnetic material, and flows from the right side of the base plate 33 to the left side. Then, the magnetic flux that has reached the left side of the base plate 33 flows to the lower part of the fixed iron core 30a and returns to the original position.
  • the movable iron core 20 is attracted to the fixed iron core 30. Then, as shown in FIG. 1, the movable contact 50 integrally molded or held with the movable iron core 20 and the resin molded product 25 (insulator) interlocks with the driving of the movable iron core 20 and the upper housing 55 (insulation).
  • the electric circuit is closed by contacting the fixed contact 40 fixed to the object.
  • the portion where the spacer 22 is present is considered to be equivalent to the air gap on the magnetic circuit.
  • a reverse magnetic field is applied to both iron cores over the range, and the effect that the residual magnetic flux becomes almost zero is obtained.
  • the spring 27 integrated with the movable iron core 20 pushes up the movable iron core 20 that has lost the attractive force, so that the movable contact 50 integrated with the movable iron core 20 via the resin molded product 25 is moved from the fixed contact 40. They will be separated and the electric circuit will be opened.
  • the spacer 22 is magnetized, the effect of suppressing the residual magnetization of the movable iron core 20 and the fixed iron core 30, which is the original purpose, will be halved, and the opening operation of the movable iron core 20 may be hindered. In that sense as well, it is necessary to avoid using a material that has been tempered to increase the hardness of SUS304.
  • the pressing force at this time is in the range of 0.2 kN to 2 kN per protrusion 24, though it depends on the plate thickness.
  • the energizing current is 2 kA to 5 kA per protrusion. Further, the energization time is in the range of 15 msec to 60 msec.
  • Step S001 positioning jig mounting step
  • Step S002 Spacer placement step
  • the spacer has a rectangular shape, but it goes without saying that other shapes such as the above-mentioned circular shape are also applicable.
  • the material of the iron core the one having an integral shape is exemplified, but it goes without saying that the same effect can be obtained even if a magnetic steel sheet or a magnetic steel sheet such as a cold rolled steel sheet is laminated and integrated.

Landscapes

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

Abstract

Un électroaimant (10) comprend : un noyau mobile (20) ; un noyau fixe (30) disposé à l'opposé du noyau mobile (20) ; et une bobine d'entraînement (70) enroulée autour du noyau fixe (30). L'un des noyaux mobile (20) et fixe (30) est pourvu, sur une surface opposée à l'autre noyau, d'un élément d'espacement (22) qui est une plaque unique d'acier inoxydable austénitique et qui est obtenu par traitement d'une plaque mince de matériau 2B de norme JIS ou de matériau 2D de norme JIS. L'élément d'espacement (22) et les noyaux (20, 30) sont soudés ensemble au moyen d'une partie de soudage (Y) qui est disposée sur au moins l'un des éléments parmi l'élément d'espacement (22) et les noyaux (20, 30) et qui a une forme en saillie par rapport à l'autre.
PCT/JP2019/024024 2018-10-25 2019-06-18 Électroaimant, commutateur électromagnétique et procédé de fabrication d'électroaimant Ceased WO2020084829A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020217010882A KR102427376B1 (ko) 2018-10-25 2019-06-18 전자석, 전자 개폐기, 및 전자석의 제조 방법
CN201980069192.2A CN112889122B (zh) 2018-10-25 2019-06-18 电磁铁、电磁开闭器及电磁铁的制造方法
JP2020552513A JP7002673B2 (ja) 2018-10-25 2019-06-18 電磁石、電磁開閉器、電磁石の製造方法、および電磁開閉器の製造方法
TW108131211A TWI688975B (zh) 2018-10-25 2019-08-30 電磁鐵、電磁開關、及電磁鐵的製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-200494 2018-10-25
JP2018200494 2018-10-25

Publications (1)

Publication Number Publication Date
WO2020084829A1 true WO2020084829A1 (fr) 2020-04-30

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PCT/JP2019/024024 Ceased WO2020084829A1 (fr) 2018-10-25 2019-06-18 Électroaimant, commutateur électromagnétique et procédé de fabrication d'électroaimant

Country Status (5)

Country Link
JP (1) JP7002673B2 (fr)
KR (1) KR102427376B1 (fr)
CN (1) CN112889122B (fr)
TW (1) TWI688975B (fr)
WO (1) WO2020084829A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2022024565A1 (fr) * 2020-07-28 2022-02-03

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021260985A1 (fr) * 2020-06-24 2021-12-30 三菱電機株式会社 Mécanisme d'application de pression d'électrode pour machine de soudage par résistance, machine de soudage par résistance, procédé de soudage et procédé de production pour commutateur électromagnétique

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JPS4851856A (fr) * 1971-11-02 1973-07-20
JPS56141515A (en) * 1980-04-08 1981-11-05 Yokogawa Hokushin Electric Corp Displacement measuring device
JPS61125643A (ja) * 1984-11-22 1986-06-13 Nec Corp メツセ−ジ表示装置
JPS62145708A (ja) * 1985-12-20 1987-06-29 Mitsubishi Electric Corp 電磁石装置

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JPS501852U (fr) * 1973-05-04 1975-01-09
JPS5846412A (ja) 1981-09-11 1983-03-17 Toshiba Corp 運転操作装置
JPS5846412U (ja) * 1981-09-24 1983-03-29 三菱電機株式会社 電磁石
JPS6254406A (ja) * 1985-07-29 1987-03-10 Mitsubishi Electric Corp 電磁石鉄心
JPS62145706A (ja) * 1985-12-20 1987-06-29 Mitsubishi Electric Corp 電磁石装置
JPH0414890Y2 (fr) * 1986-08-18 1992-04-03
JP3014878B2 (ja) * 1992-11-17 2000-02-28 トヨタ自動車株式会社 焼入油の冷却装置
JP3166559B2 (ja) * 1994-10-25 2001-05-14 富士電機株式会社 電磁接触器の電磁石装置
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JP2003007528A (ja) * 2001-06-26 2003-01-10 Keihin Corp 電磁装置
JP3987039B2 (ja) 2004-01-13 2007-10-03 株式会社ケーヒン 燃料噴射弁
CN101079352A (zh) * 2006-05-26 2007-11-28 盛润泉 一种新型交、直流接触器
JP5163317B2 (ja) * 2008-06-30 2013-03-13 オムロン株式会社 接点装置
JP5163318B2 (ja) * 2008-06-30 2013-03-13 オムロン株式会社 電磁石装置
CN101677044B (zh) * 2008-09-19 2011-12-28 厦门宏发电力电器有限公司 一种高可靠长寿命的高压直流真空继电器
WO2010073317A1 (fr) * 2008-12-24 2010-07-01 三菱電機株式会社 Contacteur électromagnétique
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WO2014068625A1 (fr) * 2012-11-05 2014-05-08 三菱電機株式会社 Contacteur électromagnétique
EP2975617B1 (fr) * 2013-03-13 2023-06-07 Mitsubishi Electric Corporation Dispositif actionné par solénoïde
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Publication number Priority date Publication date Assignee Title
JPS4851856A (fr) * 1971-11-02 1973-07-20
JPS56141515A (en) * 1980-04-08 1981-11-05 Yokogawa Hokushin Electric Corp Displacement measuring device
JPS61125643A (ja) * 1984-11-22 1986-06-13 Nec Corp メツセ−ジ表示装置
JPS62145708A (ja) * 1985-12-20 1987-06-29 Mitsubishi Electric Corp 電磁石装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2022024565A1 (fr) * 2020-07-28 2022-02-03
WO2022024565A1 (fr) * 2020-07-28 2022-02-03 三菱電機株式会社 Procédé de fabrication d'un commutateur électromagnétique et commutateur électromagnétique
JP7321380B2 (ja) 2020-07-28 2023-08-04 三菱電機株式会社 電磁開閉器の製造方法

Also Published As

Publication number Publication date
JPWO2020084829A1 (ja) 2021-04-08
KR102427376B1 (ko) 2022-07-29
JP7002673B2 (ja) 2022-02-04
TWI688975B (zh) 2020-03-21
KR20210049934A (ko) 2021-05-06
TW202016958A (zh) 2020-05-01
CN112889122B (zh) 2022-10-28
CN112889122A (zh) 2021-06-01

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