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WO2020137107A1 - Relais électromagnétique - Google Patents

Relais électromagnétique Download PDF

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Publication number
WO2020137107A1
WO2020137107A1 PCT/JP2019/040817 JP2019040817W WO2020137107A1 WO 2020137107 A1 WO2020137107 A1 WO 2020137107A1 JP 2019040817 W JP2019040817 W JP 2019040817W WO 2020137107 A1 WO2020137107 A1 WO 2020137107A1
Authority
WO
WIPO (PCT)
Prior art keywords
movable contact
arc
fixed
contact piece
pair
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/JP2019/040817
Other languages
English (en)
Japanese (ja)
Inventor
航平 大塚
亮太 箕輪
岩坂　博之
靖雄 林田
真吾 森
直樹 川口
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
Omron Corp
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 Omron Corp, Omron Tateisi Electronics Co filed Critical Omron Corp
Publication of WO2020137107A1 publication Critical patent/WO2020137107A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
    • H01H50/38—Part of main magnetic circuit shaped to suppress arcing between the contacts of the relay
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements

Definitions

  • the present invention relates to an electromagnetic relay.
  • the electromagnetic relay of Patent Document 1 includes a fixed terminal including a fixed contact and a movable contact piece including a movable contact.
  • the movable contact is capable of contacting the fixed contact, and when the movable contact contacts the fixed contact or is separated from the fixed contact, the electric circuit is opened and closed.
  • the electromagnetic relay is provided with a permanent magnet for extending an arc generated when the movable contact separates from the fixed contact (see Patent Document 1). As a result, the Lorentz force acts on the arc to extend the arc.
  • the fixed terminal and the movable contact piece are configured to have almost the same length in the arc extension direction. Therefore, when the arc is expanded by the Lorentz force, the arc is expanded substantially evenly in the vertical direction.
  • An object of the present invention is to make it easy to control the arc extension direction in an electromagnetic relay.
  • the electromagnetic relay includes a pair of fixed terminals, a movable contact piece, and a magnet portion.
  • the pair of fixed terminals includes fixed contacts.
  • the movable contact piece includes a movable contact arranged to face the fixed contact.
  • the movable contact piece is movable in a first direction in which the movable contact contacts the fixed contact and in a second direction in which the movable contact separates from the fixed contact.
  • the magnet section generates a magnetic field for extending the arc generated between the fixed contact and the movable contact.
  • Any one of the pair of fixed terminals or the movable contact piece includes an extension portion that extends in the arc extension direction and passes through the arc more than the other of the pair of fixed terminals or the movable contact piece.
  • the extending portion when the pair of fixed terminals includes the extending portion, the extending portion extends in the arc extending direction more than the movable contact piece, and therefore, the arc extending direction of the pair of fixed terminals from the fixed contact. Is greater than the distance from the movable contact to the end located in the arc extension direction of the movable contact piece. Therefore, the end of the arc on the fixed contact side moves in the arc extension direction more than the end of the arc on the movable contact side. As a result, the direction of the Lorentz force acting on the arc changes, so that the arc can be greatly extended in one direction, and the extension direction of the arc can be easily controlled. Further, even when the movable contact piece includes the extending portion, the same effect can be obtained.
  • the extension direction is parallel to the lateral direction of the movable contact piece.
  • the arc can be greatly extended to one side in the first direction or the two directions.
  • the electromagnetic relay further extends from the movable contact piece in the second direction and further includes an arc extension space for extending the arc.
  • the pair of fixed terminals includes the extending portion. In this case, since the arc can be greatly expanded in the second direction rather than the first direction, the arc can be greatly expanded toward the arc expansion space expanded in the second direction.
  • the corners of the movable contact piece in the extending direction have a chamfered shape.
  • the arc can be smoothly moved to the surface opposite to the contact side.
  • the electromagnetic relay further includes an arc horn that extends from the movable contact piece in the second direction and is connected to the movable contact piece on the extension direction side of the movable contact piece. In this case, it is possible to further extend the arc toward the arc extension space.
  • the arc horn is arranged so as to incline toward the center of the movable contact piece in the lateral direction.
  • the arc can be further elongated toward the arc extension space.
  • the electromagnetic relay further includes an arc extending space for extending the arc from the pair of fixed terminals in the first direction.
  • the movable contact piece includes an extension portion.
  • the arc can be expanded more largely in the first direction than in the second direction, the arc can be expanded greatly toward the arc expansion space expanded in the first direction.
  • the corners in the extending direction of the pair of fixed terminals have a chamfered shape.
  • the arc can be smoothly moved to the surface opposite to the contact side.
  • the electromagnetic relay further includes an arc horn that extends from the pair of fixed terminals in the first direction and is connected to the pair of fixed terminals on the extension direction side of the pair of fixed terminals. In this case, it is possible to further extend the arc toward the arc extension space.
  • the arc horn is arranged so as to be inclined in a direction approaching the center of the pair of fixed terminals in the lateral direction of the movable contact piece. In this case, it is possible to further extend the arc toward the arc extension space.
  • the pair of fixed terminals are plate-shaped terminals extending in the longitudinal direction of the movable contact piece.
  • the electromagnetic relay using the plate-shaped fixed terminal it becomes possible to easily control the extension direction of the arc.
  • FIG. 3 It is a cross-sectional schematic diagram of an electromagnetic relay. It is the schematic diagram which looked at the inside of a storage part from the upper part. It is a cross-sectional schematic diagram which looked at the cross section of the 1st fixed contact periphery in the direction which goes to a 2nd magnet from a 1st magnet. It is a figure corresponding to FIG. 3 which concerns on other embodiment. It is a figure corresponding to FIG. 3 which concerns on other embodiment. It is a figure corresponding to FIG. 3 which concerns on other embodiment. It is a figure corresponding to FIG. 3 which concerns on other embodiment. It is a figure corresponding to FIG. 3 which concerns on other embodiment. It is a figure corresponding to FIG. 3 which concerns on other embodiment. It is a figure corresponding to FIG. 3 which concerns on other embodiment. It is a figure corresponding to FIG. 3 which concerns on other embodiment. It is a figure corresponding to FIG. 3 which concerns on other embodiment. It is a figure corresponding to FIG. 3 which concerns on other embodiment.
  • FIG. 3 It is a figure corresponding to FIG. 3 which concerns on other embodiment. It is a figure corresponding to FIG. 3 which concerns on other embodiment. It is a figure corresponding to FIG. 3 which concerns on other embodiment. It is a figure corresponding to FIG. 3 which concerns on other embodiment. It is a cross-sectional schematic diagram of the 1st fixed terminal which concerns on other embodiment.
  • FIG. 1 is a schematic sectional view of the electromagnetic relay 100.
  • the electromagnetic relay 100 includes a housing 2, a contact device 3, a drive shaft 4, an electromagnetic drive device 5, and a magnet portion 6.
  • the upper side in FIG. 1 will be described as “upper”, the lower side as “lower”, the left side as “left”, and the right side as “right” in order to facilitate understanding of the description.
  • the direction orthogonal to the paper surface of FIG. In the present embodiment is the contact direction Z1.
  • the lower side in FIG. 1 is the opening direction Z2. Details of the contact direction Z1 and the opening direction Z2 will be described later.
  • the housing 2 has a substantially rectangular box shape and is made of an insulating material.
  • the contact device 3, the drive shaft 4, the electromagnetic drive device 5, and the magnet portion 6 are housed inside the housing 2.
  • the housing 2 includes a housing portion 11.
  • the accommodating portion 11 is formed of, for example, a substantially rectangular parallelepiped case member arranged in the housing 2.
  • the housing portion 11 is made of an insulating material.
  • FIG. 2 is a schematic view of the inside of the accommodation unit 11 viewed from above.
  • the housing 11 includes a first inner wall surface 11a, a second inner wall surface 11b, a third inner wall surface 11c, and a fourth inner wall surface 11d.
  • Each of the first to fourth inner wall surfaces 11a to 11d is the front, rear, left, and right inner side surfaces of the housing portion 11.
  • the first inner wall surface 11a and the second inner wall surface 11b extend vertically and horizontally.
  • the first inner wall surface 11a and the second inner wall surface 11b are arranged to face each other in the front-rear direction.
  • the third inner wall surface 11c and the fourth inner wall surface 11d extend in the up-down direction and the front-rear direction.
  • the third inner wall surface 11c and the fourth inner wall surface 11d are arranged to face each other in the left-right direction.
  • the horizontal dimension of the first inner wall surface 11a and the second inner wall surface 11b is longer than the vertical dimension of the third inner wall surface 11c and the fourth inner wall surface 11d.
  • the accommodation unit 11 includes an accommodation space 12 that accommodates the contact device 3.
  • the accommodation space 12 is a substantially rectangular parallelepiped space that is shielded from the outside.
  • the sides of the accommodation space 12 are surrounded by the first to fourth inner wall surfaces 11a to 11d.
  • the contact device 3 includes a first fixed terminal 14, a second fixed terminal 15, a movable contact piece 16, and a contact piece holding portion 17.
  • the 1st fixed terminal 14, the 2nd fixed terminal 15, and the movable contact piece 16 are formed with the material which has electroconductivity.
  • the first fixed terminal 14 and the second fixed terminal 15 are plate-shaped terminals and extend in the left-right direction.
  • the first fixed terminal 14 and the second fixed terminal 15 are arranged at intervals in the left-right direction.
  • the first fixed terminal 14 and the second fixed terminal 15 are an example of a pair of fixed terminals.
  • the first fixed terminal 14 includes a first fixed contact 14a and a first external connection portion 14b.
  • the first fixed contact 14 a is arranged in the accommodation space 12.
  • the first external connection portion 14b projects leftward from the housing 2 and is exposed to the outside.
  • the second fixed terminal 15 includes a second fixed contact 15a and a second external connection portion 15b.
  • the second fixed contact 15 a is arranged in the accommodation space 12.
  • the second external connection portion 15b projects rightward from the housing 2 and is exposed to the outside.
  • the movable contact piece 16 is a plate-shaped member that is long in one direction, and extends in the left-right direction in the accommodation space 12.
  • the movable contact piece 16 is arranged in the accommodation space 12 at a distance from the first inner wall surface 11a and the second inner wall surface 11b in the front-rear direction.
  • Arc extension spaces 12a and 12b for extending the arc are provided between the movable contact piece 16 and the first inner wall surface 11a and between the movable contact piece 16 and the second inner wall surface 11b.
  • the arc extension spaces 12a and 12b are arranged at positions close to the first fixed contact 14a and a first movable contact 16a described later, or the second fixed contact 15a and a second movable contact 16b described later.
  • the arc extension spaces 12a and 12b are expanded to the opening direction Z2 side of the movable contact piece 16 rather than the contact direction Z1 side of the movable contact piece 16.
  • the movable contact piece 16 is arranged in the accommodation space 12 so as to be laterally spaced from the third inner wall surface 11c and the fourth inner wall surface 11d.
  • the movable contact piece 16 is arranged below the first fixed terminal 14 and the second fixed terminal 15.
  • the longitudinal direction of the movable contact piece 16 corresponds to the left-right direction.
  • the lateral direction of the movable contact piece 16 corresponds to the front-back direction.
  • the movable contact piece 16 includes a first movable contact 16a and a second movable contact 16b.
  • the first movable contact 16a is arranged so as to face the first fixed contact 14a and can contact the first fixed contact 14a.
  • the second movable contact 16b is arranged at a distance from the first movable contact 16a in the left-right direction.
  • the second movable contact 16b is arranged so as to face the second fixed contact 15a and can contact the second fixed contact 15a.
  • the movable contact piece 16 is movable in a contact direction Z1 that contacts the first fixed contact 14a and the second fixed contact 15a and a separation direction Z2 that separates from the first fixed contact 14a and the second fixed contact 15a.
  • the contact direction Z1 is an example of the first direction
  • the opening direction Z2 is an example of the second direction.
  • the contact direction Z1 is a direction in which the first movable contact 16a and the second movable contact 16b come into contact with the first fixed contact 14a and the second fixed contact 15a (the upper side in FIG. 1).
  • the opening/closing direction Z2 is a direction (downward in FIG. 1) in which the first movable contact 16a and the second movable contact 16b are separated from the first fixed contact 14a and the second fixed contact 15a.
  • the contact piece holder 17 holds the movable contact piece 16 via the drive shaft 4, as shown in FIG.
  • the contact piece holder 17 connects the movable contact piece 16 and the drive shaft 4.
  • the contact piece holder 17 includes a holder 24 and a contact spring 25.
  • the contact spring 25 biases the drive shaft 4 and the movable contact piece 16 toward the contact direction Z1.
  • the drive shaft 4 extends along the contact direction Z1 and the opening direction Z2.
  • the drive shaft 4 is movable in the contact direction Z1 and the opening direction Z2 together with the movable contact piece 16.
  • the electromagnetic drive device 5 drives the contact device 3.
  • the electromagnetic drive device 5 moves the movable contact piece 16 together with the drive shaft 4 in the contact direction Z1 and the opening direction Z2 by the electromagnetic force.
  • the electromagnetic drive device 5 is arranged in the housing 2 below the housing portion 11.
  • the electromagnetic drive device 5 includes a movable iron core 31, a fixed iron core 32, and a yoke 33.
  • the electromagnetic drive device 5 includes a coil, a spool, and a coil spring (not shown). Since the electromagnetic drive device 5 has the same configuration as the conventional one, detailed description thereof will be omitted.
  • the magnet unit 6 causes a magnetic field for extending an arc generated between the first fixed contact 14a and the first movable contact 16a and between the second fixed contact 15a and the second movable contact 16b into the housing unit 11. generate.
  • the magnet unit 6 includes a first magnet 6a and a second magnet 6b.
  • the first magnet 6a and the second magnet 6b are permanent magnets, and the first magnet 6a and the second magnet 6b are permanent magnets.
  • the first magnet 6a and the second magnet 6b extend in the front-back direction and the vertical direction.
  • the first magnet 6a and the second magnet 6b are fixed to the outer circumference of the housing portion 11.
  • the 1st magnet 6a and the 2nd magnet 6b are arranged so that the different poles may face each other in the longitudinal direction of the movable contact piece 16 around the housing 11.
  • the first magnet 6 a is arranged such that the north pole faces the housing portion 11.
  • the second magnet 6b is arranged so that the S pole faces the housing portion 11. Due to the first magnet 6a and the second magnet 6b arranged in this way, magnetic flux flows in the accommodation portion 11 in a direction substantially parallel to the lateral direction of the movable contact piece 16.
  • the operation of the electromagnetic relay 100 is the same as that of the conventional one, and thus will be briefly described.
  • Fig. 1 shows a state where voltage is applied to the coil.
  • the movable iron core 31 moves in the contact direction Z1 against the elastic force of the coil spring.
  • the drive shaft 4 and the movable contact piece 16 move in the contact direction Z1
  • the first movable contact 16a and the second movable contact 16b become the first fixed contact 14a and the second fixed contact 14a. It contacts the fixed contact 15a.
  • the movable iron core 31 moves in the opening direction Z2 together with the movable contact piece 16 by the elastic force of the coil spring.
  • the first movable contact 16a and the second movable contact 16b are in a state of being separated from the first fixed contact 14a and the second fixed contact 15a.
  • the first movable contact 16a and the second movable contact 16b are separated from the first fixed contact 14a and the second fixed contact 15a, between the first movable contact 16a and the first fixed contact 14a, and An arc is generated between the movable contact 16b and the second fixed contact 15a.
  • the directions of the Lorentz force F1 and the Lorentz force F2 acting on the arc are opposite to the directions described above.
  • the direction of current flow will be described as the direction from the first fixed contact 14a to the first movable contact 16a.
  • FIG. 3 is a schematic cross-sectional view of the cross section around the first fixed contact 14a as seen in the direction from the first magnet 6a to the second magnet 6b.
  • FIG. 3 schematically shows how the Lorentz force F1 acting on the arc extends the arc.
  • the first fixed terminal 14 includes a first surface 20a, a second surface 20b, a third surface 20c, and a fourth surface 20d.
  • the first surface 20a is a surface of the first fixed terminal 14 on the opening direction Z2 side.
  • the second surface 20b is a surface opposite to the first surface 20a and is a surface of the first fixed terminal 14 on the contact direction Z1 side.
  • the first surface 20a and the second surface 20b extend in the front-rear direction and the left-right direction. In the present embodiment, the first surface 20a and the second surface 20b have a flat shape.
  • the third surface 20c is the rear surface of the first fixed terminal 14.
  • the fourth surface 20d is a surface opposite to the third surface 20c, and is a front surface of the first fixed terminal 14.
  • the third surface 20c and the fourth surface 20d extend vertically and horizontally.
  • the movable contact piece 16 includes a first surface 30a, a second surface 30b, a third surface 30c, and a fourth surface 30d.
  • the first surface 30a is a surface of the movable contact piece 16 on the contact direction Z1 side and faces the first surface 20a of the first fixed terminal 14.
  • the second surface 3b is a surface opposite to the first surface 30a, and is a surface of the movable contact piece 16 on the opening direction Z2 side.
  • the first surface 30a and the second surface 30b extend in the front-rear direction and the left-right direction. In this embodiment, the first surface 30a and the second surface 30b have a flat shape.
  • the third surface 30c is the rear surface of the movable contact piece 16.
  • the fourth surface 20d is a surface opposite to the third surface 30c, and is a front surface of the movable contact piece 16.
  • the third surface 30c and the fourth surface 30d extend vertically and horizontally.
  • the first fixed terminal 14 extends longer than the movable contact piece 16 in the front-rear direction.
  • the dimension of the first fixed terminal 14 in the lateral direction of the movable contact piece 16 is larger than the dimension of the movable contact piece 16 in the lateral direction.
  • both ends of the first fixed terminal 14 in the lateral direction are positioned outside the movable contact piece 16 in the lateral direction.
  • the first surface 20a of the first fixed terminal 14 extends in the front-rear direction more than the first surface 30a of the movable contact piece 16. Both ends of the first surface 20a of the first fixed terminal 14 are positioned outside the both ends of the first surface 30a of the movable contact piece 16 in the lateral direction.
  • the third surface 20c of the first fixed contact 14a is located rearward of the third surface 30c of the movable contact piece 16.
  • the fourth surface 20d of the first fixed terminal 14 is located in front of the fourth surface 30d of the movable contact piece 16.
  • the first fixed terminal 14 further includes an extension portion 21.
  • the extending portion 21 is formed by a part of the first surface 20a and is arranged at least in a portion through which the arc passes.
  • the extending portion 21 may be arranged only in a range close to the first fixed contact 14a of the first fixed terminal 14 located in the arc extending direction.
  • the extension portion 21 extends in the arc extension direction over the entire length of the first fixed terminal 14.
  • Extending portion 21 is arranged on the rear end side of first fixed terminal 14.
  • the extension portion 21 extends in the arc extension direction more than the movable contact piece 16.
  • the extending portion 21 extends rearward of the first surface 30a of the movable contact piece 16. Therefore, the distance from the center of the first fixed contact 14a to the rear end (third surface 20c) of the extending portion 21 is from the center of the first movable contact 16a to the rear end (third surface 30c) of the first surface 30a. Longer than the distance.
  • the arc extension direction in this embodiment means the same direction as the Lorentz force acting on the arc.
  • the direction of the Lorentz force acting on the arc changes as the arc moves. Therefore, more precisely, the arc extension direction means the direction of the Lorentz force acting on the arc at the time when it occurs between the first movable contact 16a and the first fixed contact 14a.
  • the arc extension direction is parallel to the lateral direction of the movable contact piece 16.
  • the direction of the Lorentz force F1 that occurs and acts on the arc changes rearward and toward the opening direction Z2.
  • the arc can be extended more downward than upward, so that the extension direction of the arc can be easily controlled.
  • the arc can be extinguished quickly by efficiently extending the arc in the arc extension space 12a.
  • the second fixed terminal 15 has a symmetrical shape with the first fixed terminal 14 with the drive shaft 4 interposed therebetween, and the movable contact piece 16 has a symmetrical shape with the drive shaft 4 interposed therebetween. Therefore, even in the arc generated between the second fixed contact 15a and the second movable contact 16b, when the arc is extended by the Lorentz force F2, the same effect as described above can be obtained.
  • the present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the invention.
  • the shape or arrangement of the housing 2, the contact device 3, the drive shaft 4, the electromagnetic drive device 5, or the housing portion 11 may be changed.
  • the first fixed terminal 14 and the second fixed terminal 15 may have a shape that is bent into a substantially L shape inside the housing 2. Further, the first fixed terminal 14 and the second fixed terminal 15 are arranged below the movable contact piece 16, and the movable contact piece 16 is drawn toward the first fixed terminal 14 and the second fixed terminal 15 by the electromagnetic drive device 5. You may operate like.
  • the first fixed terminal 14 and the second fixed terminal 15 may be cylindrical terminals. In this case, for example, the dimension of the movable contact piece 16 in the lateral direction may be smaller than the diameter of the first fixed terminal 14.
  • the first fixed terminal 14 includes the extending portion 21, but the movable contact piece 16 may include the extending portion 21, as shown in FIG. 4.
  • the dimension of the movable contact piece 16 in the lateral direction may be made larger than the dimension of the first fixed terminal 14 in the lateral direction of the movable contact piece 16.
  • the arc extension spaces 12a and 12b are preferably expanded from the first fixed terminal 14 in the contact direction Z1.
  • the electromagnetic relay 100 may further include an arc horn 40.
  • the arc horn 40 extends in the opening direction Z2 from the third surface 30c and the fourth surface 30d of the movable contact piece 16 and is connected to both ends of the movable contact piece 16 in the lateral direction. In this case, the arc can be extended further downward, and the extension direction of the arc can be easily controlled.
  • the arc horn 40 may be arranged on the second surface side 30b of the movable contact piece 16 so as to be inclined toward the center of the movable contact piece 16 in the lateral direction. In this case, the arc can be extended further downward.
  • FIG. 5 the arc horn 40 extends in the opening direction Z2 from the third surface 30c and the fourth surface 30d of the movable contact piece 16 and is connected to both ends of the movable contact piece 16 in the lateral direction. In this case, the arc can be extended further downward, and the extension direction of the arc can be easily controlled.
  • the arc horn 40 may be
  • the arc horn 40 extends from the first fixed terminal 14 in the contact direction Z ⁇ b>1, and the arc extending direction of the first fixed terminal 14. It is connected to the first fixed terminal 14 on the side. Further, as shown in FIG. 8, the arc horn 40 may be inclined on the second surface 20b side of the first fixed terminal 14 in a direction approaching the center of the first fixed terminal 14 in the lateral direction of the movable contact piece 16. ..
  • the corners C1 to C4 of the movable contact piece 16 may have a chamfered shape.
  • the chamfered shape is, for example, a C chamfered shape or an R chamfered shape.
  • the corners C5 to C8 of the first fixed terminal 14 may have a chamfered shape.
  • the dimension of the first fixed contact 14a in the lateral direction of the movable contact piece 16 may be larger than the dimension of the first movable contact 16a in the lateral direction of the movable contact piece 16.
  • the positions of the first fixed terminal 14 and the movable contact piece 16 are displaced from each other in the lateral direction of the movable contact piece 16.
  • the first surface 30 a of the movable contact piece 16 may be extended forward of the first surface 20 a of the first fixed terminal 14 to form the extending portion 22 corresponding to the extending portion 21.
  • the corners C1 to C4 of the first fixed terminal 14 and the corners C5 to C8 of the movable contact piece 16 have chamfered shapes.
  • the first fixed contact 14a may be arranged so as to be flush with the first surface 20a.
  • the first fixed contact 14 a may be integrated with the first fixed terminal 14.
  • the first surface 20a of the first fixed terminal 14 contacts the first movable contact 16a or the movable contact piece 16.
  • the configuration may be applied to the first fixed terminal 14 or the movable contact piece 16.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Contacts (AREA)

Abstract

Un relais électromagnétique selon la présente invention comprend une paire de bornes fixes, une pièce de contact mobile et une partie magnétique. La paire de bornes fixes comprend un contact fixe. La pièce de contact mobile (13) comprend un contact mobile (16) faisant face au contact fixe (14). La pièce de contact mobile est mobile dans une première direction dans laquelle le contact mobile entre en contact avec le contact fixe et dans une seconde direction dans laquelle le contact mobile est séparé du contact fixe. La partie magnétique génère un champ magnétique pour allonger un arc se produisant entre le contact fixe et le contact mobile. La paire de bornes fixes ou la pièce de contact mobile s'étend plus loin dans la direction d'allongement de l'arc que l'autre de ces deux éléments tels que la paire de bornes fixes et de la pièce de contact mobile, et comprend une partie allongée à travers laquelle passe l'arc.
PCT/JP2019/040817 2018-12-28 2019-10-17 Relais électromagnétique Ceased WO2020137107A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-246971 2018-12-28
JP2018246971A JP7056549B2 (ja) 2018-12-28 2018-12-28 電磁継電器

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Publication Number Publication Date
WO2020137107A1 true WO2020137107A1 (fr) 2020-07-02

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WO (1) WO2020137107A1 (fr)

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CN115497773A (zh) * 2021-06-17 2022-12-20 欧姆龙株式会社 电磁继电器

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JP7672093B2 (ja) * 2020-12-09 2025-05-07 パナソニックＩｐマネジメント株式会社 接点装置及び電磁継電器
JP7501409B2 (ja) * 2021-03-05 2024-06-18 オムロン株式会社 電磁継電器
JP7739731B2 (ja) * 2021-03-15 2025-09-17 オムロン株式会社 電磁継電器

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JP2015035414A (ja) * 2013-07-12 2015-02-19 富士電機機器制御株式会社 接点装置及びこれを使用した電磁接触器
JP2015046373A (ja) * 2013-07-31 2015-03-12 富士電機機器制御株式会社 接点装置及びこれを使用した電磁接触器
JP2016134308A (ja) * 2015-01-20 2016-07-25 富士電機機器制御株式会社 電磁接触器

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