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WO2018020917A1 - Relais électromagnétique - Google Patents

Relais électromagnétique Download PDF

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Publication number
WO2018020917A1
WO2018020917A1 PCT/JP2017/023026 JP2017023026W WO2018020917A1 WO 2018020917 A1 WO2018020917 A1 WO 2018020917A1 JP 2017023026 W JP2017023026 W JP 2017023026W WO 2018020917 A1 WO2018020917 A1 WO 2018020917A1
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WO
WIPO (PCT)
Prior art keywords
movable
pair
contact
fixed
contacts
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/JP2017/023026
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English (en)
Japanese (ja)
Inventor
亮太 箕輪
真吾 森
俊行 柿本
和宏 池本
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 WO2018020917A1 publication Critical patent/WO2018020917A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • 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.
  • An electromagnetic relay disclosed in Patent Document 1 is provided in a closed space, a housing having a closed space therein, a pair of fixed terminals that are electrically fixed to the housing independently of each other, and a pair of fixed terminals.
  • a plate-shaped movable contact that faces each of the fixed terminals and is movable so as to approach or separate from each of the pair of fixed terminals.
  • a fixed contact is fixed to the tip of each of the pair of fixed terminals located in the closed space.
  • a pair of movable contacts arranged to face each of the pair of fixed contacts is fixed to the movable contact.
  • a restricting portion is provided on the pair of fixed terminals of the movable contact.
  • moderation relaxation part is provided between the control part and the movable contact, and the restriction
  • the fixed contact arrangement surface of at least one fixed terminal, and the movable contact arrangement surface of the movable contact facing the fixed contact arrangement surface are substantially parallel and contacted or separated by parallel movement. Therefore, in the electromagnetic relay, welding may occur between the fixed contact and the movable contact due to an arc generated between the fixed contact and the movable contact when the fixed contact and the movable contact are opened and closed. Thus, the fixed contact and the movable contact cannot be peeled off, and the performance of the electromagnetic relay is significantly deteriorated.
  • an object of the present invention is to provide an electromagnetic relay that can reduce performance degradation due to welding.
  • the electromagnetic relay of one embodiment of the present invention is A box-shaped insulating housing with a closed space formed inside, A pair of fixed terminals fixed to the housing electrically independently from each other and having a fixed contact arrangement surface in the closed space; Each of the fixed contact placement surfaces of the pair of fixed terminals is provided in the closed space and has a first surface facing the fixed contact placement surface of the pair of fixed terminals.
  • An electrically conductive plate-like movable contact disposed so as to be movable toward and away from A pair of fixed contacts respectively provided on the fixed contact placement surface of the pair of fixed terminals;
  • the pair of fixed contacts are provided on the first surface of the movable contact, face each of the pair of fixed contacts, and the pair of fixed contacts as the movable contact approaches the pair of fixed terminals.
  • a pair of movable contacts arranged to be in contact with each other and to be separated from each of the pair of fixed contacts in accordance with the separation of the movable contact with respect to the pair of fixed terminals, With A portion where at least the pair of movable contacts is provided on the first surface of the movable contact is orthogonal to both the first direction as the arrangement direction of the pair of fixed terminals and the moving direction of the movable contact.
  • the first surface of the movable contact can be tilted around the first direction when the pair of fixed contacts and the pair of movable contacts are in contact with each other. It is.
  • the portion provided with at least one pair of movable contacts on the first surface of the movable contact is inclined in the second direction orthogonal to both the first direction and the moving direction of the movable contact. is doing.
  • the end faces of the pair of movable contacts are not moved in parallel with the end faces of the pair of fixed contacts and are not in contact with each other at the same time.
  • the corresponding fixed contact partly contacts, and each movable contact rotates around the contacted part as a center (fulcrum), and the remaining part of each movable contact contacts the fixed contact.
  • the perspective view which shows the movable contact of the electromagnetic relay of FIG. The front view which shows a pair of fixed contact and a pair of movable contact of the electromagnetic relay of FIG. 1 of a reset state.
  • Sectional drawing along the VV line of FIG. Sectional drawing along the VI-VI line of FIG.
  • the perspective view which shows the movable contact of an electromagnetic relay of 2nd Embodiment of this invention of a return state, and a pair of movable contact.
  • the front view which shows a pair of fixed contact and a pair of movable contact of the 11th electromagnetic relay of a reset state. Sectional drawing along the XII-XII line
  • the front view which shows a pair of fixed contact and a pair of movable contact of the electromagnetic relay of FIG. 11 in the middle of operation
  • the front view which shows the electromagnetic relay of 3rd Embodiment of this invention of a reset state.
  • the front view which shows the electromagnetic relay of FIG. 16 of an operation state.
  • the electromagnetic relay 100 As shown in FIG. 1, the electromagnetic relay 100 according to the first embodiment of the present invention includes an insulating housing 1 and a pair of fixed terminals 31 a and 31 b fixed to the housing 1. As shown in FIG. 2, the electromagnetic relay 100 passes through the center of the pair of fixed terminals 31a and 31b and extends in a direction perpendicular to the arrangement direction of the pair of fixed terminals 31a and 31b (shown in FIG. 2). ).
  • a closed space 70 is formed inside the housing 1, and the electromagnetic relay 100 is provided in the closed space 70 so as to face the pair of fixed terminals 31 a and 31 b.
  • a conductive plate-like movable contact 32 is provided.
  • the movable contact 32 is arranged to be movable so as to approach and separate from the pair of fixed terminals 31a and 31b.
  • the electromagnetic relay 100 has a movable contact so as to face the pair of fixed contacts 33a and 33b provided on the pair of fixed terminals 31a and 31b and the pair of fixed contacts 33a and 33b in the closed space 70, respectively.
  • a pair of movable contacts 34a, 34b provided on 32.
  • the arrangement direction of the pair of fixed terminals 31a and 31b (that is, the horizontal direction in FIG. 2) is the X direction
  • the height direction of the electromagnetic relay 100 (that is, the vertical direction in FIG. 2) is the Z direction
  • a direction perpendicular to both the X and Z directions is defined as a Y direction.
  • the housing 1 includes a case 10 and a cover 20, and a closed space forming portion 30 that forms a closed space 70 provided inside the case 10 and the cover 20.
  • the case 10 has a rectangular box shape as shown in FIG. Further, as shown in FIG. 2, the case 10 has an opening on the upper side in the Z direction.
  • a terminal groove 11 from which the coil terminal 43 protrudes and a locking hole 12 for fixing the case 10 and the cover 20 are provided on the side surface on the left side in the Y direction of the case 10.
  • the cover 20 has a rectangular box shape and is attached so as to cover the opening of the case 10. Further, as shown in FIG. 2, the cover 20 has an opening on the lower side in the Z direction.
  • a partition wall 21 provided in the approximate center in the X direction and extending in the Y direction is provided on the outer surface on the upper side in the Z direction of the cover 20.
  • terminal holes 22 from which a pair of fixed terminals 31a and 31b protrude are provided.
  • the opening of the cover 20 is provided with a locking claw for fixing the case 10 and the cover 20 together with the locking hole 12 of the case 10.
  • the closed space forming portion 30 includes an insulating rectangular ceramic plate 52 along the XY plane, and a rectangular tubular flange 51 extending downward from the edge of the ceramic plate 52 in the Z direction.
  • a plate-shaped first yoke 53 along the XY plane disposed at the lower end of the flange 51, and a circular or square bottomed cylindrical body 54 extending downward in the Z direction from the vicinity of the flat surface of the first yoke 53. It consists of The flange 51, the ceramic plate 52, and the first yoke 53 are integrated, and the first yoke 53 and the bottomed cylindrical body 54 are airtightly joined.
  • the flange 51 has an opening at the upper and lower ends in the Z direction and an insulating inner cover 511 that covers the outer periphery thereof.
  • the ceramic plate 52 is disposed so as to close the opening on the upper side in the Z direction of the flange 51.
  • the ceramic plate 52 is provided with a pair of terminal holes 521 arranged to face the terminal holes 22 of the cover 20. In each terminal hole 521, a pair of fixed terminals 31a and 31b are inserted and fixed by brazing.
  • the first yoke 53 is disposed so as to close the opening of the flange 51 on the lower side in the Z direction.
  • a hole 531 is provided in the flat surface of the first yoke 53.
  • a substantially cylindrical movable shaft 35 is movably inserted into the hole 531.
  • the movable shaft 35 has a connecting end portion 35a at the upper end portion thereof (that is, the upper end portion in the Z direction), and the movable shaft 35 and the movable contact 32 are interposed between the connecting end portion 35a via a retaining ring 38.
  • the lower end surface of the connecting end portion 35a (that is, the lower end surface of the retaining ring 38) is substantially parallel to the fixed contact arrangement surface 311 of the pair of fixed terminals 31a and 31b.
  • a movable iron core 58 is coupled to the lower end portion of the movable shaft 35 (that is, the lower end portion in the Z direction).
  • the flanged bottomed cylinder 54 extends from the first yoke 53 to the bottom of the case 10 and is disposed so as to cover the hole 531 of the first yoke 53.
  • Inside the bottomed cylindrical body 54 are housed a movable shaft 35, a fixed iron core 57 fixed to the first yoke 53, and a movable iron core 58 fixed to the lower end portion of the movable shaft 35.
  • a return spring 59 is provided between the fixed iron core 57 and the movable iron core 58 to urge the movable iron core 58 downward in the Z direction.
  • each of the pair of fixed terminals 31 a and 31 b has a substantially columnar shape, and is electrically fixed to the ceramic plate 52 constituting the housing 1 independently of each other.
  • the pair of fixed terminals 31 a and 31 b are arranged at a distance from each other along the first direction (X direction) which is the arrangement direction, and a part of the fixed terminals 31 a and 31 b is located in the closed space 70.
  • a fixed contact arrangement surface 311 along the XY plane is provided on each of the end surfaces in the closed space 70 of the pair of fixed terminals 31a and 31b (that is, the end surface at the lower end in the Z direction).
  • Each fixed contact arrangement surface 311 is provided with fixed contacts 33a and 33b, respectively.
  • Each fixed contact 33a, 33b may be formed integrally with the corresponding fixed terminal 31a, 31b, or may be formed separately from the corresponding fixed terminal 31a, 31b.
  • the movable contact 32 includes a first surface 321 along the XY plane facing the pair of fixed terminals 31a and 31b, and a second surface along the XY plane opposite to the first surface 321. 322.
  • a pair of movable contacts 34 a and 34 b are provided on the first surface 321 of the movable contact 32. That is, the first surface 321 is a movable contact arrangement surface, and the pair of movable contacts 34 a and 34 b are electrically connected to each other by the movable contact 32.
  • the pair of movable contacts 34a and 34b are arranged to face the pair of fixed contacts 33a and 33b, respectively.
  • the movable contacts 34 a and 34 b may be formed integrally with the movable contact 32 or may be formed separately from the movable contact 32.
  • the portions 321 a and 321 b on which the pair of movable contacts 34 a and 34 b of the first surface 321 of the movable contact 32 are respectively provided in the first direction (that is, the X direction) and the movable contact 32. They are inclined in the same direction with respect to a second direction (that is, the Y direction) orthogonal to both of the movement directions (that is, the Z direction). That is, the portions 321a and 321b provided with the pair of movable contacts 34a and 34b on the first surface 321 of the movable contact 32 are inclined surfaces, and the inclined surfaces 321a and 321b and the pair of fixed terminals 31a and 31b are provided.
  • the fixed contact arrangement surface 311 forms a predetermined inclination angle ⁇ (for example, 0.5 degrees to 3 degrees).
  • the inclined surfaces 321a and 321b have the same inclination angle ⁇ .
  • each movable contact 34a, 34b When the inclination angle ⁇ is less than 0.5 degrees, the range of movement of each movable contact 34a, 34b relative to the corresponding fixed contact 33a, 33b due to the rotation becomes too small, and each movable contact becomes a corresponding fixed contact. It is impossible to sufficiently obtain the effect of reducing welding when contacting and the effect of improving the opening force when separating each movable contact from the corresponding fixed contact. On the other hand, when the inclination angle ⁇ exceeds 3 degrees, the range of movement of each movable contact 34a, 34b with respect to the corresponding fixed contact 33a, 33b due to the rotation becomes too large, and each movable contact 34a, 34b corresponds to the corresponding fixed contact 33a. , 33b is weakened and the contact reliability between the pair of fixed terminals 31a, 31b and the pair of movable contacts 34a, 34b may be reduced.
  • a flat surface 321c substantially parallel to the fixed contact arrangement surface 311 of the pair of fixed terminals 31a and 31b is provided between the inclined surfaces 321a and 321b of the movable contact 32.
  • the flat surface 321c is disposed between the pair of movable contacts 34a and 34b, penetrates in the moving direction of the movable contact 32 (that is, the Z direction), and can be fitted with the movable shaft 35.
  • H.323 is provided.
  • the through hole 323 has an elliptical shape in a plan view as viewed along the Z direction, and the diameter dimension y in the Y direction is larger than the diameter dimension x in the X direction. That is, a gap 324 (shown in FIG. 5) is provided between the substantially cylindrical movable shaft 35 and the through hole 323 in the second direction, and the movable contact 32 is moved by the gap 324 to the movable shaft 35. Can be tilted around the first direction.
  • the lower end surface of the retaining ring 38 and the flat surface 321 c of the first surface 321 of the movable contact 32 are substantially parallel, and the lower end surface of the retaining ring 38 and the movable contact are in contact with each other.
  • the flat surface 321c of the first surface 321 of the child 32 and the second surface 322 of the movable contactor 32 form an inclination angle ⁇ .
  • each of the inclined surfaces 321 a and 321 b of the first surface 321 of the movable contact 32 and the second surface 322 of the movable contact 32 are substantially parallel to each other.
  • a pair of permanent magnets 55 and 55 and an arc shield member 71 are provided in the closed space 70 of the housing 1.
  • the pair of permanent magnets 55 and 55 are arranged so as to face each other and sandwich the pair of fixed contacts 33a and 33b and the pair of movable contacts 34a and 34b at both ends in the X direction inside the flange 51. .
  • the pair of permanent magnets 55 and 55 are held by an insulating magnet holder 56.
  • the magnet holder 56 extends to the movable shaft 35 along the upper surface of the first yoke 53 in the Z direction.
  • a spring tray 37 as an example of a support plate portion held by the movable shaft 35 is disposed between the spring tray 37 and the movable contact 32.
  • the movable contact 32, the movable shaft 35, the coil spring 36, and the spring tray 37 are integrally movable in the Z direction.
  • the arc shield member 71 includes a pair of fixed contacts 33a and 33b and movable contacts 34a and 34b in both sides in the Y direction (that is, the back side and the near side in FIG. 2) and outside in the X direction (that is, on the adjacent permanent magnet 55). It is arranged so as to cover the near side.
  • the electromagnet portion 40 includes an insulating spool 41, a coil 42 wound around the spool 41, and a coil terminal 43 (shown in FIG. 1) fixed to the spool 41.
  • the electromagnet portion 40 moves the movable shaft 35 up and down along the Z direction by applying a voltage to the coil 42, thereby moving the movable contact 32 relative to the fixed contact arrangement surface 311 of the pair of fixed terminals 31 a and 31 b. To approach or separate.
  • a second yoke 44 having a substantially U-shaped cross section is provided inside the housing 1.
  • the second yoke 44 is connected to the first yoke 53 and is disposed inside the case 10 so as to surround the electromagnet portion 40 together with the first yoke 53.
  • FIG. 2 shows the electromagnetic relay 100 in the return state
  • FIGS. 4 to 6 show the electromagnetic relay in the return state (that is, the pair of fixed contacts 33a and 33b and the pair of movable contacts 34a and 34b are separated).
  • a pair of fixed terminals 31a and 31b and a movable contact 32 of 100 are shown.
  • 7 and 8 show the pair of fixed terminals 31a and 31b and the movable contact 32 of the electromagnetic relay 100 in the middle of operation.
  • FIG. 9 shows the operation state (that is, the pair of fixed contacts 33a and 33b and the pair of contacts).
  • the fixed terminal 31a and the movable contact 32 of the electromagnetic relay 100 in a state where the movable contacts 34a and 34b are in contact with each other are shown. Furthermore, in FIG. 5, FIG. 6, and FIG. 8, the inclination angle ⁇ is exaggerated for easy understanding.
  • the movable iron core 58 fixed to the tip of the movable shaft 35 is moved downward in the Z direction by the return spring 59 as shown in FIG.
  • the pair of fixed contacts 33a and 33b and the pair of movable contacts 34a and 34b are separated from each other.
  • each of the inclined surfaces 321 a and 321 b located at both ends in the longitudinal direction of the movable contact 32 is connected to the fixed contact arrangement surface 311 of the pair of fixed terminals 31 a and 31 b.
  • the flat surface 321c which is arranged so as to form a predetermined inclination angle ⁇ and is located between the inclined surfaces 321a and 321b, is substantially parallel to the fixed contact arrangement surface 311 of the pair of fixed terminals 31a and 31b. It is arranged to be.
  • the movable iron core 58 When a voltage is applied to the coil 42 of the electromagnetic relay 100 in the return state, the movable iron core 58 is magnetically attracted to the fixed iron core 57 and moves upward in the Z direction against the spring force of the return spring 59. As the movable iron core 58 moves, the movable shaft 35 moves upward in the Z direction, moves the movable contact 32 upward in the Z direction via the coil spring 50, and the first surface 321 of the movable contact 32 moves. It approaches to the pair of fixed terminals 31a and 31b.
  • the pair of movable contacts 34a and 34b provided on the first surface 321 of the movable contact 32 are replaced with the pair of fixed contacts 33a and 33a, respectively.
  • Each of 33b is contacted.
  • each movable contact 34a, 34b first has one end in the second direction (that is, the Y direction) closest to the corresponding fixed contact 33a, 33b. 33a and 33b are contacted. And each movable contact 34a, 34b is toward the moving direction (namely, Z direction upper side) of the movable contact 32 centering on the part P which contacted initially, maintaining the contact with the part P which contacted initially.
  • the movable contact 32 rotates about the first direction (that is, the X direction) until the inclined surfaces 321a and 321b of the movable contact 32 become substantially parallel to the fixed contact arrangement surface 311 of the corresponding fixed contacts 33a and 33b. Thereby, contact with a pair of fixed terminals 31a and 31b and a pair of movable contacts 34a and 34b is completed, and electromagnetic relay 100 will be in an operation state.
  • each of the movable contacts 34a and 34b is inclined with respect to each of the inclined surfaces 321a and 321b of the movable contact 32 toward the moving direction of the movable contact 32 (that is, the lower side in the Z direction) around the portion P that is first contacted.
  • the fixed contact arrangement surface 311 of the pair of fixed terminals 31a and 31b rotate around the first direction until an inclination angle ⁇ is formed.
  • the electromagnetic relay 100 will be in a reset state.
  • the movable contact 32 is arranged to be movable so that the first surface 321 approaches and separates from the pair of fixed terminals 31a and 31b. Further, as shown in FIG. 2, the pair of movable contacts 34a and 34b are separated from each of the pair of fixed contacts 33a and 33b when the movable contact 32 is separated from the pair of fixed terminals 31a and 31b. Is arranged. Further, as shown in FIG. 3, the pair of movable contacts 34a and 34b are arranged so as to contact each of the pair of fixed contacts 33a and 33b as the movable contact 32 approaches the pair of fixed terminals 31a and 31b. Has been.
  • the portions 321a and 321b provided with at least a pair of the movable contacts 34a and 34b of the first surface 321 of the movable contact 32 are moved in the first direction (that is, the X direction) and movable. It inclines in the same direction with respect to the 2nd direction (namely, Y direction) orthogonal to both the moving directions (namely, Z direction) of the contact 32.
  • each movable contact 34a, 34b is in contact with the corresponding fixed contact 33a, 33b in the return state, after the end in the second direction closest to the corresponding fixed contact 33a, 33b first contacts the corresponding fixed contact 33a, 33b.
  • each movable contact 34a, 34b is separated from the corresponding fixed contact 33a, 33b, compared to a case where each movable contact 34a, 34b is separated without rotating from the corresponding fixed contact 33a, 33b, The force for separating each movable contact 34a, 34b from the corresponding fixed contact 33a, 33b can be increased. That is, the performance degradation of the electromagnetic relay 100 due to the welding of the movable contacts 34a and 34b and the corresponding fixed contacts 33a and 33b can be reduced.
  • portions where the pair of movable contacts 34a and 34b of the first surface 321 of the movable contact 32 are provided are inclined surfaces 321a and 321b having the same inclination angle ⁇ .
  • the pair of movable contacts 34a and 34b are partially contacted or separated at substantially the same time with the corresponding fixed contacts 33a and 33b, and the partially contacted or unseparated part is the center (ie, fulcrum). Can be rotated in the same direction. For this reason, the performance degradation of the electromagnetic relay 100 by welding as a result in which the movable contacts 34a and 34b and the corresponding fixed contacts 33a and 33b are contacted or separated entirely can be more reliably reduced.
  • a gap 324 (shown in FIG. 5) is provided between the through hole 323 of the movable contact 32 in the second direction and the substantially cylindrical movable shaft 35, and the movable contact 32 is provided by this gap 324. Is tilted in the second direction with respect to the movable shaft 35, that is, is rotatable around the first direction. This facilitates the rotation of the movable contact 32 when the pair of movable contacts 34a, 34b contact or separate from the corresponding fixed contacts 33a, 33b, and the fixed contacts corresponding to the movable contacts 34a, 34b. The performance degradation of the electromagnetic relay 100 due to the welding of 33a and 33b can be more reliably reduced.
  • the pair of movable contacts can be rotated around the first direction substantially simultaneously with the corresponding fixed contacts, and the first surface is inclined in the same direction with respect to the second direction (ie, the Y direction). It is preferable to use a movable contact.
  • the movable contact 32 has two inclined surfaces 321a and 321b having the same inclination angle ⁇ , but this is not restrictive.
  • a portion of the first surface 321 provided with at least a pair of movable contacts 34a and 34b is in the first direction (that is, the X direction) and the moving direction of the movable contact 32 (that is, the Z direction). It is only necessary to incline in the same direction with respect to a second direction (that is, the Y direction) orthogonal to both. That is, the movable contact may be configured such that, for example, the entire first surface is inclined in the same direction with respect to the second direction.
  • the electromagnetic relay 200 according to the second embodiment of the present invention is different from the electromagnetic relay 100 according to the first embodiment in that the connecting end 35a of the movable shaft 35 has an inclined member 60 as shown in FIG. Is different.
  • the same parts as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and differences from the first embodiment will be described.
  • the inclined member 60 has a contact surface 61 extending in the second direction and having one end edge in contact with the first surface 321 of the movable contact 32, and is in contact with the first surface 321 of the movable contact 32. At the other end of 61, it is comprised with the side surface J-shaped member which has the protrusion part 62 which protrudes from this contact surface 61 in the moving direction (namely, Z direction) of the movable contactor 32.
  • the inclined member 60 has a movable shaft 35 such that a surface opposite to the contact surface 61 (that is, a surface on the upper side in the Z direction) is substantially parallel to the fixed contact arrangement surface 311 of the pair of fixed terminals 31a and 31b.
  • connection end 35a Is fixed to a disk-like connecting end portion 35a at the upper end of the. That is, since the lower end surface of the connection end 35a is substantially parallel to the fixed contact arrangement surface 311 of the pair of fixed terminals 31a and 31b, the contact surface 61 of the inclined member 60 that contacts the lower end surface of the connection end 35a.
  • the surface on the opposite side (that is, the surface on the upper side in the Z direction) is also substantially parallel to the fixed contact arrangement surface 311.
  • the movable contact 32 is provided so that the first surface 321 and the second surface 322 are substantially parallel. That is, the first surface 321 of the movable contact 32 is inclined in the same direction with respect to the second direction by the protruding portion 82 of the inclined member 60, and the fixed contact arrangement surface 311 of the pair of fixed terminals 31a and 31b.
  • a predetermined inclination angle ⁇ (for example, 0.5 degrees to 3 degrees) is formed.
  • the electromagnetic relay 200 of the second embodiment operates in the same manner as the electromagnetic relay 100 of the first embodiment. That is, as shown in FIG. 11 to FIG. 15, each movable contact 34a, 34b is rotated around the part P that is first contacted or the part 2 that is not contacted first and remains in contact with the fixed contact. The contacts 33a and 33b are contacted or separated.
  • connection end portion 35 a has the contact surface 61 that extends in the second direction (that is, the Y direction) and whose one end edge contacts the first surface 321 of the movable contact 32. And a protrusion 62 that protrudes from the contact surface 61 in the moving direction of the movable contact 32 (that is, the Z direction) at the other end of the contact surface 61 that contacts the first surface 321 of the movable contact 32.
  • the inclined member 60 is formed of a side J-shaped member.
  • the 1st surface 321 of the movable contact 32 can be made to incline with respect to the fixed contact arrangement
  • the connecting end 35 a is provided at the end of the movable shaft 35 on the first surface 321 side of the movable contact 32, connects the movable shaft 35 and the movable contact 32, and connects the movable contact 32 with the first end of the movable contact 32.
  • the first surface 321 may be configured to be inclined in the second direction (that is, the Y direction).
  • a flange that can be locked to the through hole of the movable contact is provided at one end of the movable shaft, and the surface of the flange that contacts the first surface of the movable contact may be inclined in the second direction. .
  • the inclined member 60 is not limited to having the protruding portion 62 provided on the contact surface 61, and for example, the contact surface may be an inclined surface inclined in the second direction instead of the protruding portion. Moreover, you may use the retaining ring whose surface which contacts the 1st surface of a movable contact is an inclined surface which inclines in a 2nd direction as an inclination member.
  • the electromagnetic relay 300 according to the third embodiment of the present invention has different heights along the moving direction (that is, the Z direction) of the movable contact 32 and the corresponding fixed contact 33 a.
  • 33b is different from the electromagnetic relay 100 of the first embodiment in that the contact surfaces 341a, 341b with the first and second contacts 33b have movable contacts 134a, 134b inclined in the same direction with respect to the first direction.
  • the same parts as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and differences from the first embodiment will be described.
  • the contact surface 341a of the left movable contact 134a of the pair of movable contacts 134a and 134b that is close to the fixed contact 33a and 33b corresponds. It contacts the left fixed contact 33a. Then, after the first contact P of the movable contact 134a rotates around the second direction around the portion P (ie, the fulcrum), the contact surface 341b of the right movable contact 134b contacts the corresponding right fixed contact 33b. Further, each movable contact 134a, 134b rotates around the first direction around the front side of FIG. 17 (that is, the first contacted portion in the Y direction).
  • the movable contacts 134a and 134b first rotate around the first direction around the front side of FIG.
  • the contact part P rotates around the second direction with the fulcrum as a fulcrum, and finally the part P with which the movable contact 134a first contacts is separated from the fixed contact 33a.
  • the contact surfaces 341a and 341b with the corresponding fixed contacts 33a and 33b are inclined in the same direction with respect to the first direction, and the height of the moving direction of the movable contact 32 (that is, the Z direction) is different.
  • Providing the pair of movable contacts 134a and 134b can also reduce the performance degradation of the electromagnetic relay 100 due to welding of the movable contacts 134a and 134b and the corresponding fixed contacts 33a and 33b.
  • contact surfaces 341a and 341b are not limited to the inclined surfaces inclined in the same direction with respect to the first direction, and may be, for example, hemispherical surfaces protruding in the corresponding fixed contacts 33a and 33b.
  • the electromagnetic relay of the present invention is A box-shaped insulating housing with a closed space formed inside, A pair of fixed terminals fixed to the housing electrically independently from each other and having a fixed contact arrangement surface in the closed space; Each of the fixed contact placement surfaces of the pair of fixed terminals is provided in the closed space and has a first surface facing the fixed contact placement surface of the pair of fixed terminals.
  • An electrically conductive plate-like movable contact disposed so as to be movable toward and away from A pair of fixed contacts respectively provided on the fixed contact placement surface of the pair of fixed terminals;
  • the pair of fixed contacts are provided on the first surface of the movable contact, face each of the pair of fixed contacts, and the pair of fixed contacts as the movable contact approaches the pair of fixed terminals.
  • a pair of movable contacts arranged to be in contact with each other and to be separated from each of the pair of fixed contacts in accordance with the separation of the movable contact with respect to the pair of fixed terminals, With A portion where at least the pair of movable contacts is provided on the first surface of the movable contact is orthogonal to both the first direction as the arrangement direction of the pair of fixed terminals and the moving direction of the movable contact.
  • the first surface of the movable contact can be tilted around the first direction when the pair of fixed contacts and the pair of movable contacts are in contact with each other. It is.
  • the end surfaces of the pair of movable contacts are not moved in parallel with the end surfaces of the pair of fixed contacts and are simultaneously in contact with each other.
  • each movable contact and the corresponding fixed contact partially contact each other, each movable contact rotates around the contacted portion (ie, a fulcrum), and the remaining part of each movable contact contacts the fixed contact.
  • the pair of movable contacts are not moved by parallel movement with respect to the pair of fixed contacts, but each movable contact rotates with respect to the corresponding fixed contact.
  • the electromagnetic relay of the second aspect of the present invention is A portion of the first surface of the movable contact where the pair of movable contacts are provided is an inclined surface having the same inclination angle.
  • the pair of movable contacts are partially contacted or separated at substantially the same time with the corresponding fixed contacts, and the partially contacted part or the part that is not separated is centered (ie, Since the movable contact and the corresponding fixed contact are welded to each other, the performance degradation of the electromagnetic relay 100 can be more reliably reduced.
  • the electromagnetic relay of the third aspect of the present invention is A movable shaft extending along the moving direction of the movable contact;
  • the movable contact is disposed between the pair of movable contacts, and has a through hole that penetrates the movable contact in the moving direction and is fitted with the movable shaft.
  • a gap capable of tilting the movable contact is provided between the movable shaft and the through hole in the second direction, and the movable contact is made when the pair of fixed contacts and the pair of movable contacts are in contact with each other.
  • the first surface of the contact is tiltable about the first direction.
  • the movable contact is easily rotated when the pair of movable contacts are in contact with or separated from the corresponding fixed contacts, and each movable contact has a corresponding fixed contact.
  • the performance degradation of the electromagnetic relay due to welding can be more reliably reduced.
  • the electromagnetic relay of the fourth aspect of the present invention is
  • the first surface of the movable contact has a pair of inclined surfaces provided with the pair of movable contacts, respectively, and a flat surface provided between the pair of inclined surfaces and provided with the through hole.
  • the flat surface is movable in parallel to each of the fixed contact arrangement surfaces of the pair of fixed terminals.
  • the inclined surface can be inclined as designed. It can be inclined by ⁇ . That is, it is possible to easily obtain an electromagnetic relay that can reduce performance degradation due to welding between the fixed contact and the movable contact.
  • the electromagnetic relay of the fifth aspect of the present invention is A movable shaft extending along the moving direction of the movable contact; A coil spring that contacts the second surface opposite to the first surface of the movable contact, the movable shaft is located at the center, and expands and contracts along the movable shaft; A support plate that is held by the movable shaft and sandwiches the coil spring together with the movable contact; With The movable contact is disposed between the pair of movable contacts, and has a through hole that penetrates the movable contact in the moving direction and is fitted with the movable shaft. The movable shaft connects the movable shaft and the movable contact to one end on the first surface side of the movable contact, and inclines the first surface of the movable contact in the second direction. It has an end.
  • the first surface of the movable contact can be inclined with respect to the fixed contact arrangement surface of the pair of fixed terminals without performing special processing on the movable contact. That is, it is possible to easily obtain an electromagnetic relay that can reduce performance degradation due to welding between the fixed contact and the movable contact.
  • the electromagnetic relay of the sixth aspect of the present invention is
  • the connecting end portion has a contact surface that extends in the second direction and contacts the first surface of the movable contact, and a contact surface that contacts the first surface of the movable contact. It has the inclination member provided with the protrusion part which protrudes in the said moving direction of the said movable contact from a contact surface.
  • the first surface of the movable contact can be inclined with respect to the fixed contact arrangement surface of the pair of fixed terminals without performing special processing on the movable contact. That is, it is possible to easily obtain an electromagnetic relay that can reduce performance degradation due to welding between the fixed contact and the movable contact.
  • the electromagnetic relay of the seventh aspect of the present invention is Each of the pair of movable contacts is different from each other and has a height along the moving direction of the movable contact, and a contact surface with a fixed contact corresponding to each of the pair of movable contacts is the first It is inclined in the same direction with respect to one direction.
  • each movable contact when each movable contact comes into contact with or is separated from the corresponding fixed contact, each movable contact is added in the second direction around the first contact portion. It also rotates in one direction. For this reason, the performance fall of the electromagnetic relay by welding each movable contact and a corresponding fixed contact can be reduced more reliably.
  • the electromagnetic relay of the present invention is not limited to the electromagnetic relay of the above embodiment, but can be applied to electromagnetic relays of other configurations.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Contacts (AREA)

Abstract

Ce relais électromagnétique est pourvu : d'un boîtier isolant en forme de boîte; d'une paire de bornes fixes ayant chacune une surface de placement de contact fixe dans un espace fermé; d'un contacteur mobile en forme de plaque électroconductrice (32) qui est pourvue d'une première surface (321) faisant face aux surfaces de placement de contact fixes de la paire de bornes fixes, et qui est prévue de manière à pouvoir se déplacer de telle sorte que la première surface (321) s'approche et s'éloigne de chacune des surfaces de placement de contact fixes de la paire de bornes fixes; une paire de contacts fixes qui sont respectivement disposés sur les surfaces de placement de contact fixes de la paire de bornes fixes; et une paire de contacts mobiles (34a, 34b) qui sont respectivement disposés sur la première surface (321) du contacteur mobile (32). Des portions (321a, 321b) de la première surface (321) du contacteur mobile (32) qui ont prévu à cet effet, au moins la paire de contacts mobiles (34a, 34b), sont inclinées dans la même direction qu'une seconde direction qui est orthogonale à une première direction et la direction de déplacement du contacteur mobile (32).
PCT/JP2017/023026 2016-07-29 2017-06-22 Relais électromagnétique Ceased WO2018020917A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016150290A JP6702063B2 (ja) 2016-07-29 2016-07-29 電磁継電器
JP2016-150290 2016-07-29

Publications (1)

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WO2018020917A1 true WO2018020917A1 (fr) 2018-02-01

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WO (1) WO2018020917A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111613486A (zh) * 2020-05-28 2020-09-01 宁波峰梅新能源汽车科技有限公司 一种直动式直流继电器
CN112271113A (zh) * 2020-10-30 2021-01-26 三友联众集团股份有限公司 一种防触点粘连的继电器
CN112470244A (zh) * 2018-08-28 2021-03-09 欧姆龙株式会社 电磁继电器
CN112530746A (zh) * 2019-09-18 2021-03-19 欧姆龙株式会社 继电器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7246018B2 (ja) * 2019-03-13 2023-03-27 パナソニックＩｐマネジメント株式会社 電磁継電器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5749142A (en) * 1980-09-08 1982-03-20 Tokyo Shibaura Electric Co Electromagnetic contactor
JPS6074223A (ja) * 1983-09-19 1985-04-26 三菱電機株式会社 開閉器の接点装置
JPH10308153A (ja) * 1997-05-08 1998-11-17 Nippon Yusoki Co Ltd コンタクタ型電磁リレー
JP2004111174A (ja) * 2002-09-18 2004-04-08 Nippon Soken Inc 接点装置
JP2014102908A (ja) * 2012-11-16 2014-06-05 Panasonic Corp 接点装置
JP2014130771A (ja) * 2012-12-28 2014-07-10 Panasonic Corp 接点装置および当該接点装置を搭載した電磁継電器
WO2016103294A1 (fr) * 2014-12-24 2016-06-30 三菱電機株式会社 Commutateur électromagnétique

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5749142A (en) * 1980-09-08 1982-03-20 Tokyo Shibaura Electric Co Electromagnetic contactor
JPS6074223A (ja) * 1983-09-19 1985-04-26 三菱電機株式会社 開閉器の接点装置
JPH10308153A (ja) * 1997-05-08 1998-11-17 Nippon Yusoki Co Ltd コンタクタ型電磁リレー
JP2004111174A (ja) * 2002-09-18 2004-04-08 Nippon Soken Inc 接点装置
JP2014102908A (ja) * 2012-11-16 2014-06-05 Panasonic Corp 接点装置
JP2014130771A (ja) * 2012-12-28 2014-07-10 Panasonic Corp 接点装置および当該接点装置を搭載した電磁継電器
WO2016103294A1 (fr) * 2014-12-24 2016-06-30 三菱電機株式会社 Commutateur électromagnétique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112470244A (zh) * 2018-08-28 2021-03-09 欧姆龙株式会社 电磁继电器
CN112530746A (zh) * 2019-09-18 2021-03-19 欧姆龙株式会社 继电器
CN111613486A (zh) * 2020-05-28 2020-09-01 宁波峰梅新能源汽车科技有限公司 一种直动式直流继电器
CN112271113A (zh) * 2020-10-30 2021-01-26 三友联众集团股份有限公司 一种防触点粘连的继电器

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