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WO2014068625A1 - Contacteur électromagnétique - Google Patents

Contacteur électromagnétique Download PDF

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Publication number
WO2014068625A1
WO2014068625A1 PCT/JP2012/007061 JP2012007061W WO2014068625A1 WO 2014068625 A1 WO2014068625 A1 WO 2014068625A1 JP 2012007061 W JP2012007061 W JP 2012007061W WO 2014068625 A1 WO2014068625 A1 WO 2014068625A1
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WO
WIPO (PCT)
Prior art keywords
fixed
iron core
core
hole
contact
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/JP2012/007061
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English (en)
Japanese (ja)
Inventor
林　亨
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 JP2013540558A priority Critical patent/JP5494896B1/ja
Priority to CN201280075505.3A priority patent/CN104584173B/zh
Priority to PCT/JP2012/007061 priority patent/WO2014068625A1/fr
Publication of WO2014068625A1 publication Critical patent/WO2014068625A1/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
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
    • H01H50/305—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature damping vibration due to functional movement of armature

Definitions

  • This invention relates to an electromagnetic contactor.
  • a support plate is press-fitted into the through hole of the fixed core.
  • the support plate has a middle portion bent in a V shape, and the support plates protruding from both sides of the fixed core are supported by belt-shaped buffer springs. Both ends of the buffer spring pass through the locking holes of the locking piece provided in the lid.
  • the fixed iron core according to Patent Document 1 is directly fixed so as to be pressed against the inner wall of the lid through a support plate and a buffer spring. For this reason, when the electromagnetic contactor is turned on (when the movable iron core comes into contact with the fixed iron core), unnecessary vibration occurs in the entire iron core and the contacts indirectly connected to the iron core. This vibration causes a contact bounce at the contact, and there is a problem that the magnetic contactor has a short electrical life.
  • the present invention has been made to solve the above-described problems, and it is an object of the present invention to provide an inexpensive electromagnetic contactor while suppressing unnecessary vibration of the contact during the ON operation of the electromagnetic contactor. .
  • An electromagnetic contactor is provided with an insulating case, a fixed iron core housed in the case, a movable iron core provided to face the fixed iron core, and provided around the fixed iron core.
  • a coil that generates a suction force for bringing the iron core and the movable iron core into contact with each other, a through-hole provided in the fixed iron core in a direction perpendicular to the direction in which the movable iron core is sucked, and inserted into the through-hole.
  • a pin that has a bent part and touches the through-hole at least three points to support the pin pressed between the fixed core and the pin protruding from both sides of the through-hole.
  • the shock absorbing member which absorbs the force added to a pin is provided, and a pin transmits the impact produced in the case of contact with a movable iron core and a fixed iron core to a shock absorbing member.
  • the electromagnetic contactor according to the present invention can suppress unnecessary vibration of the contact operating in conjunction with the movable iron core by the configuration as described above. Since the suppression of this vibration can reduce the bounce time at the contact, it can be expected to improve the life of the magnetic contactor. Further, it is not necessary to use an expensive member such as a wire spring, and it can be configured with an inexpensive member.
  • FIG. 2 is a cross-sectional view of the electromagnetic contactor according to the first embodiment of the present invention taken along line AA in FIG.
  • FIG. 2 is a cross-sectional view of the electromagnetic contactor according to the first embodiment of the present invention taken along the line BB in FIG.
  • FIG. 1 is an appearance of an electromagnetic contactor according to Embodiment 1 of the present invention, and represents a front view of the electromagnetic contactor in a properly mounted state.
  • 2 shows an AA section in FIG. 1
  • FIG. 3 shows a BB section in FIG.
  • the external appearance of the magnetic contactor according to Embodiment 1 of the present invention is formed by a rear case 1 made of an insulating material and a case 2 made of an insulating material engaged with the rear case 1.
  • the electromagnet portion of the electromagnetic contactor includes an E-shaped fixed iron core 3 housed in the rear case 1, a V-shaped fixed iron core connecting pin 5, an operation coil 6 wound around a central leg 3b of the fixed iron core 3, and It is formed by an E-shaped movable iron core 7.
  • the movable iron core 7 is arranged opposite to the fixed iron core 3 with a predetermined interval by a return spring 10. Further, the movable iron core 7 is connected to a contactable carrier 9 made of an insulating material via a movable iron core connecting pin 8. A movable contact 12 is disposed in a holding hole provided in the head of the contactable carrier 9. The movable contact 12 is pressurized by the contact pressure spring 11 via a spring receiver. Further, a stationary contact 13 is attached to the case 2 so as to face the movable contact 12. When the movable contact 14 included in the movable contact 12 and the fixed contact 15 included in the fixed contact 13 come into contact with each other, a current is applied to form a circuit outside the electromagnetic contactor.
  • FIG. 4- (a) shows a state where the fixed core connecting pin 5 is attached to the fixed core 3 in Embodiment 1 of the present invention.
  • the configuration of the electromagnetic contactor according to Embodiment 1 of the present invention will be described with reference to FIGS. 2, 3 and 4- (a).
  • the fixed iron core 3 includes a central leg 3b extending along the attracting direction of the electromagnet (the direction in which the fixed iron core 3 and the movable iron core 7 face each other), and a pair of outer legs 3c arranged with the central leg 3b interposed therebetween. Yes. Further, the central leg 3b and the outer leg 3c are connected by a connecting portion 3d extending along a direction orthogonal to the attracting direction of the electromagnet. The central leg 3b, the outer leg 3c and the connecting portion 3d are integrally formed.
  • the fixed iron core 3 is formed in a substantially E shape.
  • the fixed iron core 3 is an iron core in which a plurality of substantially E-shaped plates are stacked.
  • a through hole 4 is provided in the connecting portion 3d of the fixed iron core 3.
  • the through-hole 4 is a long-angled hole having a short side in the attracting direction of the electromagnet when viewed from the side surface of the fixed core 3, that is, the plate stacking direction of the fixed core 3. Further, the through hole 4 is formed in the plate stacking direction of the fixed iron core 3.
  • the V-shaped fixed core connecting pin 5 is passed through the through hole 4 so that both ends thereof protrude.
  • the fixed iron core connecting pin 5 is made of a metal having high rigidity and no elasticity, that is, no spring property.
  • the area of the side surface of the fixed core connecting pin 5 is smaller than the area of the cross section of the through hole 4.
  • the shape of the fixed iron core connection pin 5 is an elongated strip shape.
  • the fixed iron core connecting pin 5 may have a long and narrow bar shape as long as the area of the side surface is smaller than the area of the cross section of the through hole 4.
  • the fixed iron core connecting pin 5 is formed in a V shape by bending the longest side of the three sides near the center as shown in FIG. Further, the fixed iron core connecting pin 5 has a straight portion that is straight except for the bent portion. For this reason, as shown in FIG. 4 (a), the fixed core connecting pin 5 is inserted into the through-hole 4 in the through-hole rear case side center 4a and the two through-holes in the state of being passed through the through-hole 4.
  • the movable core side end 4b is in contact with a total of three points or three wires. By making contact with three points or three wires, the fixed iron core 3 is in a state where there is no degree of freedom with respect to the fixed iron core connecting pin 5.
  • the state where there is no degree of freedom means that the relative position between the fixed iron core 3 and the fixed iron core connecting pin 5 is not displaced. That is, the fixed core connecting pin 5 is press-fitted into the through hole 4, and the fixed core connecting pin 5 is pressed by the fixed core 3. In other words, in the OFF state of the magnetic contactor, the fixed iron core 3 is fixed to the fixed iron core connecting pin 5 through the through hole 4.
  • cushion rubbers 16 having fitting holes 16a are arranged on both sides of the fixed iron core 3. As shown in FIG. 5, both protruding ends of the above-described fixed iron core connecting pin 5 are fitted into the fitting hole 16 a and supported so as to be sandwiched by the buffer rubber 16.
  • the buffer rubber 16 is housed in a kerf provided in the rear case 1. Further, the buffer rubber 16 is given an appropriate amount of bending when stored.
  • the buffer rubber 16 is fixed so as to be pressed against the bottom portion 1a of the rear case 1 by a projection of a coil spool 6a described later. However, since the fixed core connecting pin 5 is sandwiched between the buffer rubbers 16, it is not supported so as to be pressed against the bottom 1 a of the rear case 1. In FIG.
  • the fitting hole 16 a of the buffer rubber 16 penetrates the buffer rubber 16, but is not limited to this, and may be open halfway. Further, the buffer rubber 16 does not need to be integrated, and a pair of buffer rubbers may be arranged so as to sandwich the fixed core connecting pin 5.
  • the fixed iron core 3 is supported by the rear case 1 via the fixed iron core connecting pin 5 and the buffer rubber 16. At this time, the bottom surface 3e of the fixed iron core 3 (surface opposite to the contact surface 3a of the fixed iron core 3) is provided so as to contact the bottom 1a of the rear case 1 (surface facing the bottom surface 3e of the fixed iron core 3). Alternatively, a buffer region may be provided between them. In this state, no force is applied to the fixed iron core 3 and the fixed iron core connecting pin 5 so as to be pressed against the bottom 1 a of the rear case 1. That is, as in Patent Document 1 described above, the fixed iron core 3 is not directly fixed so as to be pressed against the bottom 1a of the rear case 1.
  • the movable iron core 7 is housed in the case 2 and supported so as to be movable in the direction of the fixed iron core 3. Further, the movable iron core 7 is moved until the movable iron core 7 and the fixed iron core 3 move together to the fixed iron core 3 side after the armature surface 7a of the movable iron core 7 comes into contact with the armature electrode surface 3a of the fixed iron core 3. It is supported so that it can move.
  • the movable iron core 7 includes a central leg 7b and an outer leg 7c arranged to face the central leg 3b and the outer leg 3c of the fixed iron core 3, respectively.
  • the movable iron core 7 includes a connecting portion 7d that connects the central leg 7b and the outer leg 7c and is integrally formed therewith.
  • the movable iron core 7 is formed in a substantially E shape.
  • the direction and arrangement of the movable iron core 7 are also arranged so as to be a control with respect to the fixed iron core 3.
  • the movable iron core 7 is an iron core in which a plurality of plates are stacked.
  • the movable iron core 7 has a through hole 7e near the intersection of the center leg 7b and the connecting portion 7d.
  • the through-hole 7e is formed in the plate stacking direction of the movable iron core 7.
  • a band-plate-shaped movable iron core connecting pin 8 having spring properties is passed through the through hole 7e. Note that both ends of the movable core connecting pin 8 protrude from the movable core 7. Further, the movable core connecting pin 8 is housed in a cut groove of the insulating carrier 9. That is, the movable iron core 7 and the contactable carrier 9 are connected by the movable iron core connecting pin 8.
  • a holding hole is provided in the head of the contactable carrier 9.
  • the movable contact 12 is disposed in the holding hole.
  • the movable contact 12 is pressurized by the contact pressure spring 11 via a spring receiver.
  • a stationary contact 13 is attached to the case 2 so as to face the movable contact 12.
  • the movable contact 12 has movable contacts 14 at both ends.
  • the fixed contact 13 has fixed contacts 15 at both ends.
  • the movable contact 14 is provided opposite to the fixed contact 15. Both of the movable contacts 14 are provided so as to come into contact with the opposing fixed contact 15 when the armature contact surface 7a of the movable iron core 7 moves until it contacts the contact electrode surface 3a of the fixed iron core 3.
  • the operation coil 6 is mainly composed of a coil spool 6a and a winding 6b.
  • the coil spool 6a includes a cylindrical portion and a flange portion that protrudes in a flange shape from both ends of the cylindrical portion toward the outer diameter side.
  • the center leg 3b of the fixed iron core 3 and the center leg 7b of the movable iron core 7 are inserted inside the cylindrical portion.
  • the coil spool 6a has a winding 6b wound around the outside of the cylindrical portion. That is, the winding 6b passes between the central leg 3b and the outer leg 3c of the fixed iron core 3 and between the central leg 7b and the outer leg 7c of the movable iron core 7.
  • the winding 6 b goes around the central leg 3 b of the fixed iron core 3 and the central leg 7 b of the movable iron core 7.
  • the coil spool 6a has a protrusion on the bottom 1a side of the rear case 1.
  • the buffer rubber 16 is fixed so as to be pressed against the bottom 1a of the rear case 1 during assembly. That is, a force that presses against the bottom 1a of the rear case 1 is applied to the coil spool 6a, and the buffer rubber 16 is fixed so as to press against the bottom 1a of the rear case 1, so that the fixed iron core fitted to the buffer rubber 16 is fixed.
  • the connecting pin 5 and the fixed iron core 3 are supported with respect to the rear case 1.
  • the ON operation of the magnetic contactor will be described.
  • a voltage is applied, the winding 6b is energized, and a current flows.
  • the operation coil 6 generates a magnetic field that attracts the movable iron core 7 to the fixed iron core 3.
  • the movable iron core 7 moves toward the fixed iron core 3, and the armature surface 7 a of the movable iron core 7 contacts the armature surface 3 a of the stationary iron core 3.
  • the contactable carrier 9 connected by the movable iron core connecting pin 8 operates in conjunction with it.
  • the movable contact 12 disposed on the movable carrier 9 and the movable contact 14 included in the movable contact 12 operate in conjunction with each other.
  • the armature surface 7a of the movable iron core 7 moves until it comes into contact with the armature surface 3a of the fixed iron core 3, the movable contact 14 also contacts the opposite fixed contact 15.
  • a current is supplied to the fixed contact 13, the fixed contact 15, the movable contact 14 and the movable contact 12 from the outside of the electromagnetic contactor.
  • a circuit that passes through the fixed contact 13, the fixed contact 15, the movable contact 14, and the movable contact 12 of the electromagnetic contactor is formed outside the electromagnetic contactor, that is, the circuit is closed and the ON operation of the electromagnetic contactor is performed.
  • the ON operation refers to an operation when the movable iron core contacts the fixed iron core and a circuit passing through the fixed contact 13, the fixed contact 15, the movable contact 14, and the movable contact 12 is formed outside the electromagnetic contactor. I will do it.
  • the circuit passing through the fixed contact 13, the fixed contact 15, the movable contact 14, and the movable contact 12 is not formed outside the electromagnetic contactor, it is referred to as OFF time, and the state is referred to as OFF state.
  • the operation of the electromagnet part in the ON operation of the magnetic contactor will be described.
  • the winding 6b is energized and a current flows.
  • the operation coil 6 generates a magnetic field
  • the movable iron core 7 is attracted to the fixed iron core 3 by this magnetic field.
  • the fixed iron core 3 is similarly attracted to the movable iron core 7, and the fixed iron core 3 can move toward the movable iron core 7 by the amount of bending of the fixed shock-absorbing rubber 16.
  • the above-described movement of the fixed iron core 3 is possible because the fixed iron core 3 and the fixed iron core connecting pin 5 are not applied with a force that can be pressed against the bottom 1a of the rear case 1.
  • the bottom surface 3e of the fixed iron core 3 and the bottom portion 1a of the rear case 1 are in contact with each other when the electromagnetic contactor is OFF, the bottom surface 3e of the fixed iron core 3 and the bottom portion 1a of the rear case 1 by the above movement.
  • a gap is generated between This gap functions in the same way as the buffer region described above.
  • the movable iron core 7 In the ON operation of the magnetic contactor, the movable iron core 7 is attracted to the fixed iron core 3, moves to the bottom 1a side of the rear case 1, and collides with the fixed iron core 3.
  • the kinetic energy of the movable iron core 7 at the time of collision is transmitted to the fixed shock absorbing rubber 16 via the fixed iron core 3 and the fixed iron core connecting pin 5.
  • the fixed iron core connecting pin 5 transmits the kinetic energy to the fixed buffer rubber 16 with almost no curvature. Further, the kinetic energy at the time of collision is absorbed by the bending of the fixed buffer rubber 16.
  • the shock absorbing rubber plate When the shock absorbing rubber plate is supported as a shock absorbing region, the kinetic energy at the time of collision is absorbed even when the shock absorbing rubber plate is bent.
  • both of them operate as an integrated object. That is, the fixed iron core 3 and the fixed iron core connecting pin 5 move almost integrally while the relative positions of the fixed iron core 3 and the fixed iron core connecting pin 5 are not substantially displaced.
  • the movable iron core 7 and the fixed iron core 3 move together with the fixed iron core connecting pin 5 to the bottom 1a side of the rear case 1 by the amount of bending of the fixed shock-absorbing rubber 16.
  • This movement is possible because the fixed iron core 3 is not directly fixed so as to be pressed against the bottom 1a of the rear case 1.
  • the fixed iron core 3, and the fixed iron core connecting pin 5 are moved toward the bottom 1a side of the rear case 1, there is a buffer region, so that the bottom surface 3e of the fixed iron core 3 and the bottom 1a of the rear case 1 Can move without touching.
  • the movable iron core 7, the fixed iron core 3, and the fixed iron core connecting pin 5 are immediately pushed back to the movable iron core 7 side by the repulsive force of the fixed buffer rubber 16, the return spring 10 and the contact pressure spring 11. Even when pushed back, there is no degree of freedom between the fixed iron core 3 and the fixed iron core connecting pin 5, so that they both operate almost as a single body. That is, the fixed iron core 3 and the fixed iron core connecting pin 5 move almost integrally while the relative positions of the fixed iron core 3 and the fixed iron core connecting pin 5 are not substantially displaced.
  • FIG. 6 shows a comparison result of the contact bounce time of data 17 when the fixed core connecting pin is not bent and data 18 when the fixed core connecting pin is V-shaped.
  • the vertical axis represents the primary bounce time of the contact
  • the horizontal axis represents the phase of the voltage applied to the operation coil 6. From this comparison result, it can be seen that the contact bounce time is shorter in the data 18 in the case of the V-shaped fixed core connection pin than in the data 17 in the case where the fixed core connection pin is not bent.
  • the configuration for obtaining the effect of reducing the contact bounce time described above is not limited to when the shape of the fixed core connecting pin 5 is V-shaped. That is, the shape of the fixed core connecting pin 5 may be U-shaped, W-shaped or Z-shaped, or may have a large number of bending portions and have four or more bending points. Moreover, the direction of both ends of the V-shaped, U-shaped, W-shaped, etc. of the fixed iron core connecting pin 5 is not limited to the direction of the movable iron core 7, and is installed in the direction opposite to the movable iron core 7. You may do it.
  • bending may be further added to both ends or one side of the W-shape so that both ends or one side are kept horizontal. Further, bending may be further added to both ends or one side of the W-shape, and the angles of both ends or one side may be slightly changed.
  • Each apex of the fixed core connecting pin 5 is configured to contact the movable core side 4c in the through hole and the rear case side 4d in the through hole. Further, the fixed core connecting pin 5 is configured to come into contact with the through-hole movable core side end 4b and the through-hole rear case side end 4e at two points.
  • the fixed iron core connecting pins 5 do not necessarily have to be in contact with the through holes 4 at all apexes, and do not necessarily have to be in contact with the ends of the through holes 4.
  • the through holes 4 may be in contact with a total of 6 points or 6 lines including 4 vertexes of the bending points and 2 points of the inner end of the through hole 4.
  • the present invention is not limited to this, and a total of 5 points or 5 lines of 3 vertices and 2 other points may be touched, or a total of 5 points or 5 lines of 4 vertices and another 1 point may be touched.
  • This means that the fixed iron core connecting pin 5 does not have to be in contact with the through hole 4 at every point of the vertex of the bending point and the two points of the inner end of the through hole 4.
  • the through-hole 4 of the fixed iron core 3 and the fixed iron core connecting pin 5 are in contact with at least three points or three wires, and the fixed iron core connecting pin 5 is on both sides of the movable iron core side 4c in the through hole and the rear case side 4d in the through hole. It is only necessary that the fixed iron core 3 and the fixed iron core connecting pin 5 have no degree of freedom by being in contact with each other.
  • the configuration for obtaining the above-described effect is not limited to the case where the shape of the fixed core connecting pin 5 is V-shaped. That is, the shape of the fixed core connecting pin 5 may be U-shaped, W-shaped or Z-shaped, or may have a large number of bending portions and four or more bending points. Moreover, the direction of both ends of the V-shaped, U-shaped, W-shaped, etc. of the fixed iron core connecting pin 5 is not limited to the direction of the movable iron core 7, and is installed in the direction opposite to the movable iron core 7. You may do it. In addition, when the fixed core connecting pin 5 is W-shaped, bending may be further added to both ends or one side of the W-shape so that both ends or one side are kept horizontal. Further, bending may be further added to both ends or one side of the W-shape, and the angles of both ends or one side may be slightly changed. That is, by using a metal having no spring property for the fixed core connecting pin 5, the product cost can be reduced.
  • the rigidity of the fixed core connecting pin 5 in the present invention is lower than the rigidity of the through hole 4 of the fixed core 3. For this reason, even when the V-shaped dimension of the fixed core connecting pin 5 at the time of bending is a dimension that interferes with the through hole 4, the fixed core connecting pin 5 is inserted into the through hole 4 of the fixed core 3. Can be press-fitted. By pressing the fixed core connecting pin 5 into the through hole 4 of the fixed core 3, the V shape of the fixed core connecting pin 5 is corrected to the width of the short side of the through hole 4.
  • the fixed core connecting pin 5 and the through hole 4 are in contact with each other at a total of three points or three lines of the center 4a in the rear case side in the through hole of the fixed core 3 and the movable core side end 4b in the two through holes.
  • the fixed core connecting pin 5 is corrected. Therefore, it is not necessary to improve the V-shaped bending accuracy, and workability can be improved.
  • the configuration for obtaining the above-described effect is not limited to the case where the shape of the fixed core connecting pin 5 is V-shaped. That is, the shape of the fixed core connecting pin 5 may be U-shaped, W-shaped, Z-shaped, or may have more bending portions and have four or more bending points. Moreover, the direction of both ends of the V-shaped, U-shaped, W-shaped, etc. of the fixed iron core connecting pin 5 is not limited to the direction of the movable iron core 7, and is installed in the direction opposite to the movable iron core 7. You may do it. In addition, when the fixed core connecting pin 5 is W-shaped, bending may be further added to both ends or one side of the W-shape so that both ends or one side are kept horizontal.
  • bending may be further added to both ends or one side of the W-shape, and the angles of both ends or one side may be slightly changed. That is, if the fixed core connecting pin 5 is inserted into the through hole 4 of the fixed core 3 because the rigidity of the fixed core connecting pin 5 is lower than the rigidity of the through hole 4 of the fixed core 3, it can be press-fitted. Good. By pressing the fixed core connecting pin 5 into the through hole 4 of the fixed core 3, the V shape of the fixed core connecting pin 5 is corrected to the width of the short side of the through hole 4. Therefore, it is not necessary to improve the bending accuracy and workability can be improved.
  • the fixed core connecting pin 5 is in a press-fitted state because it is inserted into the through hole 4 of the fixed core 3 while being corrected. That is, the fixed iron core 3 and the fixed iron core connecting pin 5 are in contact at three points or three wires in the through hole 4. For this reason, once the fixed iron core connecting pin 5 is inserted into the through hole 4, it does not easily fall off the fixed iron core 3. Therefore, at the time of assembly, after the fixed core connecting pin 5 is inserted into the through-hole 4, in the step of attaching the buffer rubber 16 to the portions protruding from both sides of the fixed core 3 of the fixed core connecting pin 5, the fixed core connecting pin 5 is There is no need to hold down the fixed core connecting pin 5 so as not to come out of the through hole 4. Therefore, the assemblability can be improved.
  • the configuration for obtaining the above-described effect is not limited to the case where the shape of the fixed core connecting pin 5 is V-shaped. That is, the shape of the fixed core connecting pin 5 may be U-shaped, W-shaped, Z-shaped, or may have more bending portions and have four or more bending points. Moreover, the direction of both ends of the V-shaped, U-shaped, W-shaped, etc. of the fixed iron core connecting pin 5 is not limited to the direction of the movable iron core 7, and is installed in the direction opposite to the movable iron core 7. You may do it. In addition, when the fixed core connecting pin 5 is W-shaped, bending may be further added to both ends or one side of the W-shape so that both ends or one side are kept horizontal.
  • bending may be further added to both ends or one side of the W-shape, and the angles of both ends or one side may be slightly changed. That is, the fixed iron core 3 and the fixed iron core connecting pin 5 may be in contact with at least three points or three wires in the through hole 4. Thereby, the fixed iron core connection pin 5 does not easily fall off from the fixed iron core 3. Therefore, the assemblability can be improved.
  • FIG. 4- (b) shows a case where the contact surface 3a of the fixed core 3 and the contact surface 7a of the movable core 7 are not parallel in the OFF state of the magnetic contactor according to the first embodiment.
  • the fixed core connecting pin 5 is made of a metal having no spring property.
  • the longest side of the three sides is formed in a V shape by bending near the center. Furthermore, it has a straight line part other than the bent part.
  • the fixed core connecting pin 5 is press-fitted when inserted into the through hole 4.
  • the fixed iron core 3 is press-fitted so as to be in contact with a total of three points or three wires of the through-hole rear case side center 4a and the two through-hole movable iron core side ends 4b.
  • the fixed iron core connecting pin 5 since the fixed iron core connecting pin 5 is press-fitted into the through hole 4, the fixed iron core connecting pin 5 may come into contact with a position shifted from the through hole rear case side center 4 a of the fixed iron core 3 as shown in FIG. In this case as well, the fixed iron core 3 is in a state where there is no degree of freedom with respect to the fixed iron core connecting pin 5 by contacting at three points or three wires.
  • FIGS. 4B and 4C the ON operation of the magnetic contactor when the armature surface 3a of the fixed iron core 3 and the armature surface 7a of the movable iron core 7 are not parallel will be described.
  • the fixed iron core 3 and the fixed iron core connecting pin 5 move almost integrally while the relative positions of the fixed iron core 3 and the fixed iron core connecting pin 5 are not substantially displaced.
  • the fixed iron core connecting pin 5 transmits kinetic energy to the fixed shock absorbing rubber 16 with almost no curvature.
  • the movable iron core 7 and the fixed iron core 3 move together with the fixed iron core connecting pin 5 toward the bottom 1a side of the rear case 1 by the amount of bending of the fixed cushion rubber 16.
  • the fixed iron core 3 is temporarily released from the fixed iron core connecting pin 5 by the impact force due to this collision. That is, the rigidity of the fixed core connecting pin 5 is such that it is slightly deflected to the extent that no permanent deformation is caused by an impact applied from the movable core 7 to the fixed core 3. At this time, the fixed iron core 3 moves along the fixed iron core connecting pin 5 by the temporary opening of the fixed iron core 3 due to the impact described above.
  • the above-described two types of movement in the fixed iron core 3 can occur simultaneously in one collision. That is, at the time of a collision, the fixed iron core 3 is substantially integrated with the fixed iron core connecting pin 5 and moves together with the movable iron core 7 toward the bottom 1a side of the rear case 1 by the amount of bending of the fixed shock-absorbing rubber 16 and the fixed iron core 3. Is moved along the fixed core connecting pin 5 by being temporarily released from the fixed core connecting pin 5 by the impact described above.
  • the central vertex of the V-shape of the fixed core connecting pin 5 in the V-shape is arranged in a direction farther from the movable core 7 than both ends of the V-shape. That is, as shown in FIG. 4B, when the contact surface 3a of the fixed core 3 and the contact surface 7a of the movable core 7 are not parallel, the central vertex of the V-shape of the fixed core connecting pin 5 is the fixed core. 3 is in contact with the through-hole 4 at a position slightly deviated from the center 4a in the through-hole rear case side.
  • the fixed iron core 3 moves along the fixed iron core connecting pin 5, whereby the armature surface 3 a of the fixed iron core 3 and the armature electrode surface 7 a of the movable iron core 7 are moved. It is corrected to a parallel position. That is, as shown in FIG. 4- (c), the fixed core 3 is moved and fixed so that the central vertex of the V-shape of the fixed core connecting pin 5 comes into contact with the center 4a in the through-hole rear case side of the fixed core 3. The position of the iron core 3 is corrected.
  • the position where the fixed core connecting pin 5 and the through hole 4 come into contact with each other due to the impact generated when the movable core 7 and the fixed core 3 are in contact with each other changes.
  • the armature surface 7a and the armature surface 3a of the fixed iron core are parallel to each other.
  • This correction is completed by performing the switching operation of the magnetic contactor, that is, switching between ON and OFF several times after the magnetic contactor is assembled.
  • the armature surface 3a of the fixed iron core 3 and the armature surface 7a of the movable iron core 7 are always held in parallel. That is, by this correction, uneven wear of the contact surface 3a of the fixed core 3 and the contact surface 7a of the movable core 7 is suppressed, and mechanical durability is improved.
  • FIG. 7- (a) shows the mounting state of the fixed core connecting pin 5 and the fixed core 3 in Embodiment 2 of the present invention.
  • the fixed core connecting pin 5 is bent near the center to form a V shape.
  • a bend opposite to the center bend is further added to both sides of the bend near the center to form a W shape. That is, the fixed iron core connecting pin 5 has three bent portions whose bending directions are alternate. For this reason, of the bending points, one vertex contacts the movable iron core side 4c in the through hole, and two vertexes contact the rear case side 4d in the through hole. Further, the fixed iron core connecting pin 5 contacts the movable iron core side end 4b in the through hole at two points or two lines. This is a method of contacting the through-hole 4 with a total of 5 points or 5 lines.
  • the fixed core connecting pin 5 is made of a metal having no spring property as in the first embodiment.
  • the fixed core connecting pin 5 is bent near the center on the longest side of the three sides. Then, on both sides of the folding near the center, a bending in the direction opposite to the bending at the center is further added to form a W shape. Except for the bent part, it has a straight line part. Further, when the W-shaped fixed core connecting pin 5 is inserted into the through hole 4, it is press-fitted. Thereafter, similarly to the first embodiment, the fixed iron core 3 is supported on the rear case 1 via the fixed iron core connecting pin 5 and the buffer rubber 16.
  • the method may be such that the shape of the fixed core connecting pin 5 is W-shaped and the angle of the bent portion of the fixed core connecting pin 5 is changed. That is, consider a case where the shape of the W shape is changed by changing the bending angle of the lower two vertices of the W shape. In this case, the position at which the lower two vertices of the W-shape contact the through-hole rear case side 4d does not change. At this time, the through hole 4 and the fixed core connecting pin 5 of the fixed iron core 3 have one vertex in contact with the movable iron core side 4c in the through hole and two vertexes in the rear case side 4d in the through hole. Touch.
  • the through-hole 4 of the fixed iron core 3 and the fixed iron core connecting pin 5 are in contact at three points or three wires.
  • the position of the fixed shock-absorbing rubber 16 in the OFF state of the electromagnetic contactor does not depend on the W shape since it is housed in the rear case 1. For this reason, when inserting the fixed core connecting pin 5 into the fixed core 3, by changing the bending angle of the lower two vertices of the W shape in the fixed core connecting pin 5, both sides of the fixed core connecting pin 5 of the fixed core 3 are changed. The direction of the portion protruding from the surface and the amount of protrusion change. Therefore, the position of the fixed iron core 3 with respect to the fixed buffer rubber 16 changes.
  • the distance between the movable iron core 7 and the fixed iron core 3 can be varied when the bending angles at the lower two vertices of the W-shape are equal.
  • the angle of the fixed iron core 3 with respect to the movable iron core 7 can be varied. Thereby, the distance between the movable iron core 7 and the fixed iron core 3 and the angle of the fixed iron core 3 with respect to the movable iron core 7 can be freely changed while fixing the fixed iron core 3.
  • the fixed iron core connecting pin 5 is formed in a W shape, and the position of the lower two vertices of the W character or the bending angle of the lower two vertices of the W character is changed to fix the fixed iron core 3 in the suction direction.
  • the position can be changed freely. If these methods are used, the moving distance of the movable iron core 7, that is, the so-called iron core stroke can be adjusted. This is an effective method when it is desired to adjust characteristics such as mechanical life and electrical life of the magnetic contactor by changing the iron core stroke.
  • the fixed core connecting pin 5 is a W that realizes a desired iron core stroke.
  • the fixed core connecting pin 5 may be bent and used so as to have a letter shape. Also, prepare two or more W-shaped ones, select a W-shaped one that achieves the desired iron core stroke according to the wear of the electromagnetic contactor, and insert it into the through-hole 4 to electromagnetically A contactor may be assembled.
  • FIG. FIG. 8 shows the mounting state of the fixed core connecting pin 5 and the fixed core 3 in Embodiment 3 of the present invention.
  • the fixed core connecting pin 5 is bent near the center to form a V shape.
  • a W-shape is formed by further adding bending opposite to the central folding on both sides of the central folding.
  • two bent points are formed into a Z shape. That is, the fixed core connecting pin 5 has two bent portions whose relative directions are the bending directions. For this reason, of the bending points, one vertex is in contact with the movable core side 4c in the through hole, and one vertex is in contact with the rear case side 4d in the through hole.
  • the fixed core connecting pin 5 contacts the movable core side end 4b in the through hole at one point or one line, and contacts the rear case side 4d in the through hole at one point or one line. This is a method of contacting the through hole 4 with a total of four points or four lines of two vertices and two other places.
  • the fixed iron core connecting pin 5 When the shape of the fixed iron core connecting pin 5 is V-shaped, the fixed iron core connecting pin 5 can be easily inserted into the through hole 4 of the fixed iron core 3 as compared with the case of the Z-shape. However, when the shape of the fixed core connecting pin 5 is V-shaped, the fixed core 3 cannot be intentionally angled with respect to the movable core 7.
  • the fixed core 3 can be intentionally angled with respect to the movable core 7. This will be described with reference to FIG.
  • the position of the fixed shock-absorbing rubber 16 in the OFF state of the electromagnetic contactor does not depend on the Z shape because it is housed in the rear case 1. Further, when the electromagnetic contactor is OFF, the fixed iron core 3 is in contact with the through-hole 4 at a total of four points or four wires of the two vertexes and the other two points in the Z-shape of the fixed iron core connecting pin 5. .
  • the Z-shaped fixed core connecting pin 5 is inserted into the fixed core 3. And the part which protrudes from the both sides
  • the angle can be intentionally made, the fixed position in the suction direction of the fixed core 3 can be freely changed even in the Z-shape, as in the case of the W-shaped fixed core connection pin 5. it can.
  • the moving distance of the movable iron core 7, that is, the so-called iron core stroke can be adjusted. This is an effective method when it is desired to adjust characteristics such as mechanical life and electrical life of the magnetic contactor by changing the iron core stroke.
  • the fixed core connecting pin 5 may be used by bending the fixed core connecting pin 5 so as to have a Z shape that achieves a desired core stroke. Prepare two or more different Z-shapes, select the Z-shape that achieves the desired core stroke according to the wear of the electromagnetic contactor, and insert it into the through hole 4 to A contactor may be assembled.
  • Embodiment 4 FIG.
  • the fixed core connecting pin 5 is bent at three points to form a W shape.
  • the fourth embodiment is a method in which the number of bending points is further increased and four or more points are provided.
  • the bounce time of the contact at the time of circuit closing can be reduced in the ON operation of the magnetic contactor. That is, if there is no degree of freedom between the fixed iron core 3 and the fixed iron core connecting pin 5, it is possible to reduce the bounce time of the contact at the time of circuit closing and thus improve the life of the electromagnetic contactor.
  • the state where there is no degree of freedom means that the through hole 4 of the fixed core 3 and the fixed core connecting pin 5 are in contact with each other at least at three points or three wires, and the fixed core connecting pin 5 is in the rear case 1 side in the through hole 4 and
  • the fixed iron core connecting pin 5 has at least three bent portions in which the bending directions are alternated, and is in contact with the through hole at least at three points, except for the apexes of the bent portions other than the apexes of the bent portions at both ends. The contact with the through hole is always necessary.
  • the rear case 1 side in the through hole 4 is the through hole rear case side 4d or the through hole rear case side end 4e.
  • the movable iron core 7 side in the through hole 4 is the movable iron core side end 4b in the through hole or the movable iron core side 4c in the through hole.
  • the fixed core connecting pin 5 is not required to have high rigidity, processing becomes easy during bending. Further, even if the dimension of the fixed core connecting pin 5 at the time of bending is a dimension that interferes with the through hole 4, it is press-fitted when the fixed core connecting pin 5 is inserted into the through hole 4 of the fixed core 3. Thus, the dimension of the fixed core connecting pin 5 is easily corrected to the width of the short side of the through hole 4. That is, the fixed core connection pin 5 and the through hole 4 are corrected so that the fixed core connection pin 5 and the through hole 4 are in contact with each other on the rear case 1 side in the through hole 4 of the fixed core 3 and the movable core 7 side in the through hole 4. The Therefore, it is not necessary to increase the bending accuracy of the fixed core connecting pin 5, and the workability can be improved.
  • the dimension of the fixed core connecting pin 5 at the time of bending is a dimension that interferes with the through hole 4, it can be easily press-fitted when the fixed core connecting pin 5 is inserted into the through hole 4 of the fixed core 3. . Further, since the fixed core connecting pin 5 is inserted into the through hole 4 of the fixed core 3 while being corrected, it is in a press-fitted state. For this reason, the fixed core connecting pin 5 does not easily fall off the fixed core 3. Therefore, after the fixed core connecting pin 5 is inserted into the through-hole 4, the fixed core connecting pin 5 is connected to the through-hole 4 in the step of attaching the buffer rubber 16 to the portions of the fixed core connecting pin 5 protruding from the both side surfaces of the fixed core 3. There is no need to hold it down. Therefore, the assemblability can be improved.
  • the fixed core connecting pin 5 can be thinned, the amount of metal material used as the fixed core connecting pin 5 can be reduced. That is, it can be set as the structure whose product cost is cheaper.
  • Embodiment 5 FIG.
  • the directions of both ends of the fixed core connecting pin 5 such as the V-shape and the W-shape are directed to the movable core 7.
  • the fifth embodiment is a method in which the direction of both ends of the fixed core connecting pin 5 is installed in the direction opposite to the movable core 7.
  • the apex of the bent portion is in contact with the movable core side 4c in the through hole, and is further in contact with the rear case side end 4e in the through hole at two points or two lines.
  • the through-hole 4 is brought into contact with a total of three points or three lines.
  • the fixed core connecting pin 5 when the fixed core connecting pin 5 is W-shaped, two vertices are in contact with the movable core side 4c in the through hole and one vertex is in contact with the rear case side 4d in the through hole. . Further, the fixed core connecting pin 5 contacts the movable core side end 4b in the through-hole at two points or two lines. As a result, the through-hole 4 is contacted at a total of 5 points or 5 lines.
  • the direction of the portion of the fixed core connecting pin 5 that protrudes from both side surfaces of the fixed core 3 faces the rear case 1 side, not the movable core 7 side.
  • it can be set as the structure which hooks both the projecting ends of the fixed iron core connection pin 5 to the corner
  • the fixed iron core 3 can be supported with respect to the rear case 1.
  • it is good to support between the bottom face 3e of the fixed iron core 3 and the bottom part 1a of the rear case 1 on both sides of an elastic member such as a buffer rubber plate as a buffer area.
  • FIG. 10 shows how the fixed core connecting pin 5 and the fixed core 3 are attached in the sixth embodiment of the present invention.
  • the fixed core connecting pin 5 has a W shape.
  • the sixth embodiment is a method in which bending is further added to both ends or one side of the W-shape to keep both ends or one side horizontal. Further, a method may be used in which bending is further added to both ends or one side of the W-shape, and the angles of the both ends or one side are slightly changed.
  • the fixed core connecting pin 5 is made of a metal having no spring property as in the first embodiment.
  • the fixed core connecting pin 5 is bent near the center on the longest side of the three sides. Then, on both sides of the folding near the center, a bending in the direction opposite to the bending at the center is further added to form a W shape. Except for the bent part, it has a straight line part. Further, bending is further added to both ends or one side of the W shape so that both ends or one side are horizontal. Alternatively, the angles at both ends or one side are slightly changed. And when inserting this fixed core connection pin 5 in the through-hole 4, it press-fits.
  • the fixed core connecting pin 5 has at least three bent portions whose bending directions are alternate, and is in contact with the through-holes at least at three points, except for the apexes of the bent portions other than the apexes of the bent portions at both ends. It must be in contact with the through hole.
  • the fixed iron core 3 is supported on the rear case 1 via the fixed iron core connecting pin 5 and the buffer rubber 16.
  • the both ends of the fixed iron core connecting pin 5 are inserted into the through hole 4 in the direction opposite to the movable iron core 7, two vertices are in contact with the movable iron core side 4c in the through hole.
  • One apex contacts the rear case side 4d in the through hole.
  • the fixed core connecting pin 5 is in contact with the through-hole rear case side 4d at one point or one line.
  • the through-hole 4 is contacted by a total of four points or four lines.
  • the position of the fixed cushion rubber 16 in the OFF state of the magnetic contactor is stored in the rear case 1 and therefore does not depend on the bending angle of the added bending portion. For this reason, when the fixed core connecting pin 5 is inserted into the fixed core 3, the bending angle of the added bent portion of the fixed core connecting pin 5 is changed to protrude from both side surfaces of the fixed core 3 of the fixed core connecting pin 5. The direction of the part to be changed changes. Therefore, the position of the fixed iron core 3 with respect to the fixed buffer rubber 16 changes.
  • the distance between the movable iron core 7 and the fixed iron core 3 can be varied as shown in FIG. If the bending angle of the added bending portion is different, the angle of the fixed iron core 3 relative to the movable iron core 7 can be varied as shown in FIG. That is, by changing the bending angle of the bending portion added to both ends of the W-shape by changing the shape of the fixed core connecting pin 5 to a W shape, the fixing position of the fixed core 3 in the suction direction can be freely changed. Can do.
  • the angle of the fixed core 3 relative to the movable core 7 can be varied according to the bending angle of the added bent portion. That is, the shape of the fixed iron core connecting pin 5 is W-shaped, and the angle of the fixed iron core 3 is intentionally changed with respect to the movable iron core 7 by changing the bending angle of the bent portion further added to one side of the W-shape. It becomes possible to attach. When it is possible to make an angle, it is possible to freely change the fixing position of the fixed core 3 in the suction direction as in the case of further bending at both ends of the W-shaped fixed core connecting pin 5. it can.
  • the fixed core connecting pin 5 may be used by bending the fixed core connecting pin 5 so as to achieve a desired core stroke.
  • two or more fixed core connecting pins 5 having different shapes are prepared, and those having a shape that realizes a desired core stroke are selected according to the consumption of the electromagnetic contactor, and are inserted into the through holes 4 to be electromagnetic.
  • a contactor may be assembled.
  • the fixed iron core 3 has two through holes 4 between the central leg 3b and the outer legs 3c in the connecting portion 3d of the fixed iron core 3.
  • the number of through holes 4 provided in the fixed iron core 3 is not limited to one or two. That is, three or more through holes 4 may be provided, and the fixed core connecting pins 5 may be passed through the through holes 4.
  • the fixed iron core 3 is provided with two, three, or more through holes 4 and the fixed iron core connecting pins 5 are respectively passed through the through holes 4.
  • the fixed iron core 3 and the fixed iron core connection pin 5 can have no degree of freedom.
  • the fixed core connecting pin 5 can be bent to such an extent that it is not permanently deformed by the impact applied from the movable core 7 to the fixed core 3. That is, the number of through holes 4 of the fixed core 3 can be increased to such an extent that the fixed core connection pin 5 is not permanently deformed by the impact described above.
  • the fixed core connecting pin 5 is not required to have high rigidity, processing becomes easy during bending. Thereby, even when the dimension of the fixed core connecting pin 5 at the time of bending is a dimension that interferes with the through-hole 4, press-fitting is performed when the fixed core connecting pin 5 is inserted into the through-hole 4 of the fixed core 3.
  • the dimension of the fixed core connecting pin 5 is easily corrected to the width of the short side of the through hole 4. That is, the fixed core connection pin 5 and the through hole 4 are corrected so that the fixed core connection pin 5 and the through hole 4 are in contact with each other on the rear case 1 side in the through hole 4 of the fixed core 3 and the movable core 7 side in the through hole 4. The Therefore, it is not necessary to increase the bending accuracy of the fixed core connecting pin 5, and the workability can be improved.
  • the dimension of the fixed core connecting pin 5 at the time of bending is a dimension that interferes with the through hole 4, it can be easily press-fitted when the fixed core connecting pin 5 is inserted into the through hole 4 of the fixed core 3. . Further, since the fixed core connecting pin 5 is inserted into the through hole 4 of the fixed core 3 while being corrected, it is in a press-fitted state. For this reason, the fixed core connecting pin 5 does not easily fall off the fixed core 3. Therefore, after the fixed core connecting pin 5 is inserted into the through-hole 4, the fixed core connecting pin 5 is connected to the through-hole 4 in the step of attaching the buffer rubber 16 to the portions of the fixed core connecting pin 5 protruding from the both side surfaces of the fixed core 3. There is no need to hold it down. Therefore, the assemblability can be improved.
  • the fixed core connecting pin 5 can be thinned, the amount of metal material used as the fixed core connecting pin 5 can be reduced. That is, it can be set as the structure whose product cost is cheaper.
  • the fixed iron core 3 is not temporarily released from the fixed iron core connecting pin 5. As a result, the fixed iron core 3 does not move along the fixed iron core connecting pin 5.
  • the armature surface 3 a of the fixed iron core 3 is not corrected to a position parallel to the armature electrode surface 7 a of the movable iron core 7. That is, uneven wear of the contact surface 3a of the fixed core 3 and the contact surface 7a of the movable core 7 cannot be suppressed, and the mechanical durability cannot be improved.
  • the number of the through holes 4 of the fixed core 3 needs to be determined so as to satisfy the following two conditions. That is, when the movable iron core 7 collides with the fixed iron core 3, it is necessary to satisfy both that the fixed iron core connecting pin 5 is not permanently deformed and that the fixed iron core 3 is temporarily released from the fixed iron core connecting pin 5. By doing in this way, it can prevent that the fixed iron core 3 and the fixed iron core connection pin 5 are fixed firmly, and the armature surface 3a of the fixed iron core 3 becomes parallel to the armature surface 7a of the movable iron core 7. It will be corrected to the position.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)

Abstract

Le but de la présente invention est de fournir un contacteur électromagnétique raisonnable apte à rendre minimales des vibrations non souhaitées dans un contact lorsque le contacteur électromagnétique est activé. Un contacteur électromagnétique selon la présente invention comprend : un boîtier ayant une propriété isolante ; un noyau fixe reçu dans le boîtier ; un noyau mobile situé en regard du noyau fixe ; une bobine qui est enroulée autour du noyau fixe et, lorsqu'elle est excitée, génère une force d'aspiration qui amène le noyau fixe et le noyau mobile en contact ; un trou traversant situé dans le noyau fixe dans la direction orthogonale à la direction dans laquelle le noyau mobile est aspiré ; une broche insérée dans le trou traversant, et ayant une partie pliée au moins au niveau d'une position pour venir en contact avec le trou traversant au moins au niveau de trois points, pour ainsi être pressée par le noyau fixe ; et un élément de tampon fixé sur le boîtier pour absorber la force appliquée sur la broche, l'élément de tampon serrant et maintenant les deux saillies de la broche faisant saillie depuis les deux côtés du trou traversant. La broche transmet à l'élément de tampon l'impact créé lorsque le noyau mobile et le noyau fixe viennent en contact l'un avec l'autre.
PCT/JP2012/007061 2012-11-05 2012-11-05 Contacteur électromagnétique Ceased WO2014068625A1 (fr)

Priority Applications (3)

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JP2013540558A JP5494896B1 (ja) 2012-11-05 2012-11-05 電磁接触器
CN201280075505.3A CN104584173B (zh) 2012-11-05 2012-11-05 电磁接触器
PCT/JP2012/007061 WO2014068625A1 (fr) 2012-11-05 2012-11-05 Contacteur électromagnétique

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PCT/JP2012/007061 WO2014068625A1 (fr) 2012-11-05 2012-11-05 Contacteur électromagnétique

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Publication number Priority date Publication date Assignee Title
JP7008888B1 (ja) * 2021-03-19 2022-01-25 三菱電機株式会社 電磁接触器

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Publication number Priority date Publication date Assignee Title
JP7002673B2 (ja) * 2018-10-25 2022-02-04 三菱電機株式会社 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

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JPS59184439U (ja) * 1983-05-26 1984-12-07 富士電機株式会社 電磁接触器の電磁石固定装置
JPH065084U (ja) * 1991-11-21 1994-01-21 松下電工株式会社 電磁接触器
JP2008277010A (ja) * 2007-04-26 2008-11-13 Fuji Electric Fa Components & Systems Co Ltd 電磁接触器

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JPS6119949U (ja) * 1984-07-10 1986-02-05 松下電工株式会社 電磁接触器
JPH0215243Y2 (fr) * 1986-10-31 1990-04-24
JPH07182961A (ja) * 1993-12-22 1995-07-21 Fuji Electric Co Ltd 電磁接触器の鉄心保持構造

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Publication number Priority date Publication date Assignee Title
JPS59184439U (ja) * 1983-05-26 1984-12-07 富士電機株式会社 電磁接触器の電磁石固定装置
JPH065084U (ja) * 1991-11-21 1994-01-21 松下電工株式会社 電磁接触器
JP2008277010A (ja) * 2007-04-26 2008-11-13 Fuji Electric Fa Components & Systems Co Ltd 電磁接触器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7008888B1 (ja) * 2021-03-19 2022-01-25 三菱電機株式会社 電磁接触器
WO2022195835A1 (fr) * 2021-03-19 2022-09-22 三菱電機株式会社 Contacteur électromagnétique

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JP5494896B1 (ja) 2014-05-21
CN104584173B (zh) 2017-03-08
CN104584173A (zh) 2015-04-29

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