WO2018190409A1 - Armature de dispositif de contact et son procédé de fabrication, dispositif de contact et son procédé de fabrication, et procédé de réglage de caractéristiques de dispositif de contact - Google Patents

Armature de dispositif de contact et son procédé de fabrication, dispositif de contact et son procédé de fabrication, et procédé de réglage de caractéristiques de dispositif de contact Download PDF

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Publication number
WO2018190409A1
WO2018190409A1 PCT/JP2018/015477 JP2018015477W WO2018190409A1 WO 2018190409 A1 WO2018190409 A1 WO 2018190409A1 JP 2018015477 W JP2018015477 W JP 2018015477W WO 2018190409 A1 WO2018190409 A1 WO 2018190409A1
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WIPO (PCT)
Prior art keywords
armature
contact
contact device
main part
movable
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Application number
PCT/JP2018/015477
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English (en)
Japanese (ja)
Inventor
上村　卓
一寿 木下
利幸 島
Original Assignee
パナソニックＩｐマネジメント株式会社
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Publication of WO2018190409A1 publication Critical patent/WO2018190409A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H49/00—Apparatus or processes specially adapted to the manufacture of relays or parts thereof
    • 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
    • H01H50/24—Parts rotatable or rockable outside coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/56—Contact spring sets

Definitions

  • the present disclosure generally relates to a contact device armature, a contact device contactor manufacturing method, a contact device, a contact device manufacturing method, and a contact device characteristic adjusting method. More specifically, the present disclosure relates to an armature for a contact device that drives a contact by an excitation input of a coil, a method for manufacturing an armature for the contact device, a contact device, a method for manufacturing the contact device, and characteristic adjustment of the contact device Regarding the method.
  • Patent Document 1 discloses a polarized relay in which an amateur is driven by excitation of an electromagnet.
  • the amateur has a hinge spring body.
  • the characteristics of the polarized relay are adjusted in a non-contact manner by irradiating the hinge spring body with a laser and changing the spring load of the amateur due to thermal strain.
  • An object of the present invention is to provide a method for adjusting the characteristics of an apparatus.
  • the armature for the contact device includes a plate-shaped main portion.
  • the main part is connected to a mover having a movable contact, receives a power from a power generation source, and a closed position where the movable contact comes into contact with the fixed contact, and an open position where the movable contact leaves the fixed contact.
  • the mover is moved between.
  • the main portion has a characteristic adjustment portion that adjusts a warpage amount of the main portion in the thickness direction on at least one surface in the thickness direction of the main portion.
  • a method for manufacturing an armature for a contact device is a method for manufacturing the above-described armature for a contact device, wherein a part of at least one surface in the thickness direction of the main part is not contacted
  • a contact device includes the above-described contact device armature, a movable element, and a fixed contact.
  • the mover has a movable contact and is connected to the armature.
  • the fixed contact faces the movable contact.
  • the movable contact is configured to move between a position in contact with the fixed contact and a position away from the fixed contact in conjunction with the armature and the mover.
  • a method for manufacturing a contact device is a method for manufacturing the above-described contact device, wherein the characteristic is obtained by processing a part of at least one surface of the main portion in the thickness direction in a non-contact manner.
  • the process step which forms the adjustment part is included.
  • the characteristic adjustment method for the contact device includes a processing step for the contact device armature.
  • the armature includes a plate-like main portion.
  • the main part is connected to a mover having a movable contact, receives a power from a power generation source, and a closed position where the movable contact comes into contact with the fixed contact, and an open position where the movable contact leaves the fixed contact.
  • the mover is moved between.
  • the processing step is a step of forming a characteristic adjusting unit that adjusts a warpage amount of the main part in the thickness direction by processing a part of at least one surface in the thickness direction of the main part in a non-contact manner.
  • FIG. 1A is a perspective view of an armature for a contact device according to an embodiment of the present disclosure as viewed from below.
  • FIG. 1B is a perspective view of an armature for a contact device according to an embodiment of the present disclosure as viewed from above.
  • FIG. 2A is a plan view showing an off state of the contact device of the above.
  • FIG. 2B is a plan view showing an ON state of the contact device.
  • FIG. 3 is an explanatory diagram of the amount of warping of the main part in the armature for the contact device of the above.
  • FIG. 4 is an explanatory view of an example of a method for manufacturing an armature for the contact device of the above.
  • FIG. 5C are explanatory diagrams of a process in which the characteristic adjusting unit is formed on the contact device armature of the above.
  • FIG. 6A and FIG. 6B are plan views showing the state of the characteristic adjusting unit in the above-described contact device armature.
  • FIG. 7 is a cross-sectional view showing a state of a characteristic adjusting unit in the above-described contact device armature.
  • FIG. 8A to FIG. 8D are diagrams showing examples of modifications of the characteristic adjusting unit in the contact device armature of the above.
  • FIGS. 9A to 9D are diagrams showing another example of the modification of the characteristic adjusting unit in the contact device armature of the above.
  • 10A to 10D are diagrams showing still another example of a modification of the characteristic adjusting unit in the contact device armature of the above.
  • 11A to 11D are diagrams showing still another example of a modification of the characteristic adjusting unit in the contact device armature of the above.
  • 12A to 12C are diagrams showing still another example of the modification of the characteristic adjusting unit in the contact device armature of the above.
  • the armature 1 of the present embodiment includes a plate-shaped main portion 11.
  • the main part 11 is connected to the movable element 3 having the movable contact 31. That is, the armature 1 is interlocked with the mover 3.
  • the main part 11 receives power from the power generation source B ⁇ b> 1 and moves the movable element 3 between a closed position where the movable contact 31 contacts the fixed contact 32 and an open position where the movable contact 31 separates from the fixed contact 32. It is configured to move.
  • the armature 1 of this embodiment is configured to receive power from an electromagnet device B1 serving as a power generation source B1.
  • the main part 11 of the armature 1 has a characteristic adjusting part 12.
  • the characteristic adjusting unit 12 is provided on at least one surface of the main portion 11 in the thickness direction.
  • the characteristic adjustment unit 12 adjusts (determines) the warpage amount W1 (see FIG. 3) of the main portion 11 in the thickness direction. That is, the main portion 11 of the armature 1 of the present embodiment is warped in the thickness direction of the main portion 11 as compared to the armature 1 that does not have the characteristic adjusting portion 12.
  • the armature 1 is connected to the movable element 3 having the movable contact 31 as described above. Therefore, in the contact device 100 of the present embodiment, the positions of the movable element 3 and the movable contact 31 are adjusted according to the warpage amount W1 as compared with the case where the armature 1 does not have the characteristic adjusting unit 12. Yes. For this reason, in the contact device 100 of this embodiment, compared with the case where the armature 1 does not have the characteristic adjustment part 12, the characteristic (here, electrical characteristic) is adjusted.
  • the armature 1 of the present embodiment has the characteristic adjustment unit 12, the position of the movable element 3 connected to the armature 1 can be easily adjusted. That is, the armature 1 of the present embodiment has an advantage that the position of the movable contact 31 with respect to the fixed contact 32 can be easily adjusted, and as a result, the characteristics of the contact device 100 can be easily adjusted.
  • the thickness direction of the main part 11 of the armature 1 is the vertical direction (first direction)
  • the short direction of the main part 11 is the left-right direction (second direction)
  • the longitudinal direction of the main part 11 is the front-back direction (first direction).
  • FIGS. 1A to 12C show arrows indicating these directions (up, down, left, right, front, back) viewed from the center of the armature 1 except for FIG. Is merely described for the purpose of assisting explanation, and is not accompanied by an entity.
  • the definition of the direction is not intended to limit the usage pattern of the armature 1 and the contact device 100 of the present embodiment.
  • the contact device 100 of this embodiment is demonstrated using FIG. 2A and FIG. 2B.
  • a case where the contact device 100 is mounted on an automobile is taken as an example.
  • the case where contact part A1 (after-mentioned) with which the contact apparatus 100 is provided is connected and used for the supply path of the direct-current power from the battery for driving
  • working to load for example, LED lamp and an inverter
  • the supply state of the direct-current power from a battery to a load can be switched by opening and closing contact part A1.
  • the load is, for example, an LED lamp or an inverter.
  • the load is not limited to these, and may be, for example, a personal computer or a server.
  • the contact device 100 of the present embodiment is a so-called hinge-type electromagnetic relay (relay), and is a non-polar relay.
  • the contact device 100 includes a contact portion A1, an electromagnet device (power generation source) B1, and a case C1.
  • the contact portion A1 includes an armature 1, a pair of terminal plates 2, a mover 3, one movable contact 31, one fixed contact 32, and a card 4.
  • the armature 1 will be described in detail in “(2.3) Armature” described later.
  • the upper terminal plate 2 of the pair of terminal plates 2 is also referred to as a “first terminal plate 21”
  • the lower terminal plate 2 is also referred to as a “second terminal plate 22”.
  • the first terminal board 21 is a flat metal plate that is long in the third direction (front-rear direction), and is a metal molded body made of a conductive material (for example, copper (Cu)).
  • the first terminal board 21 has a first terminal portion 211.
  • the first terminal portion 211 has a rectangular plate shape that is long in the first direction (vertical direction).
  • One end (lower end) of the first terminal portion 211 is integral with the first end (front end) in the longitudinal direction of the first terminal plate 21.
  • the first terminal portion 211 has a circular first terminal hole 212 in a plan view into which a screw or the like is inserted.
  • “plan view” means viewing from the second direction (left-right direction).
  • the 1st terminal part 211 is electrically connected to the electric circuit which connects between a battery and load, for example by screwing.
  • the second end (rear end) in the longitudinal direction of the first terminal board 21 is integrated with the second end (rear end) in the longitudinal direction of the mover 3 by, for example, caulking a rivet.
  • the second terminal plate 22 has a shape obtained by bending a long flat plate in the first direction (vertical direction), and is a metal molded body made of a conductive material (for example, copper).
  • the second terminal plate 22 has a second terminal portion 221.
  • the second terminal portion 221 has a rectangular plate shape that is long in the first direction (vertical direction).
  • One end (upper end) of the second terminal portion 221 is integral with the first end (lower end) in the longitudinal direction of the second terminal plate 22.
  • the second terminal portion 221 has a circular second terminal hole 222 into which a screw or the like is inserted.
  • the 2nd terminal part 221 is electrically connected to the electric circuit which connects a battery and load, for example by screwing.
  • the second terminal board 22 has a fixed contact 32.
  • the fixed contact 32 is attached to the second end (upper end) in the longitudinal direction of the second terminal board 22 by, for example, caulking the shaft portion of the fixed contact 32.
  • the fixed contact 32 may be configured integral
  • the mover 3 is a flat metal plate that is long in the third direction (front-rear direction), and is a metal molded body made of a conductive material (for example, copper).
  • the mover 3 is a leaf spring and has a smaller elastic coefficient than the armature 1. That is, the mover 3 is more easily bent than the armature 1.
  • the mover 3 has a movable contact 31.
  • the movable contact 31 is attached to the first end (front end) in the longitudinal direction of the mover 3 by, for example, caulking the shaft portion of the movable contact 31.
  • the movable contact 31 may be configured integrally with the movable element 3.
  • the mover 3 is curved on the first end side in the longitudinal direction.
  • the first end in the longitudinal direction of the mover 3 faces the second end (upper end) in the longitudinal direction of the second terminal board 22 with a gap in the first direction (vertical direction). Accordingly, the movable contact 31 of the movable element 3 faces the fixed contact 32 of the second terminal plate 22 in the vertical direction.
  • the mover 3 is driven by the electromagnet device B1 to move the movable contact 31 between the closed position and the open position with the second end (rear end) in the longitudinal direction of the mover 3 as a fulcrum.
  • the movable contact 31 is in the closed position, that is, in the ON state of the contact portion A1, the first terminal plate 21 and the second terminal plate 22 are short-circuited via the movable element 3, the movable contact 31, and the fixed contact 32. Therefore, when the contact portion A1 is in the ON state, the first terminal plate 21 and the second terminal plate 22 are electrically connected, and DC power is supplied from the battery to the load.
  • the movable contact 31 is in the open position, that is, in the OFF state of the contact portion A1
  • the space between the first terminal plate 21 and the second terminal plate 22 is opened, so that DC power is not supplied from the battery to the load.
  • the card 4 has a plate shape that is long in the first direction (vertical direction), and is a metal molded body made of a conductive material (for example, iron (Fe)).
  • the card 4 is a leaf spring.
  • the first end (upper end) in the longitudinal direction of the card 4 is attached to an extension piece 33 extended from the first end (front end) in the longitudinal direction of the mover 3 by caulking a rivet, for example.
  • the second end (lower end) in the longitudinal direction of the card 4 is attached to the first end (front end) in the longitudinal direction of the armature 1 by caulking a rivet, for example.
  • the card 4 transmits a force between the armature 1 and the mover 3. That is, a force is transmitted from the armature 1 to the mover 3 via the card 4, and a force is transmitted from the mover 3 to the armature 1 via the card 4.
  • the electromagnet device B1 includes a coil 5, a bobbin 6, a stator 7, a yoke 8, and a return spring 9.
  • the stator 7 and the yoke 8 are both magnetic materials.
  • the coil 5 is configured by winding an electric wire (for example, copper wire) around the outer peripheral surface of the bobbin 6.
  • the coil 5 has a pair of coil terminals 51 to which the first end and the second end of the electric wire are respectively electrically connected.
  • the coil 5 generates a magnetic flux when supplied with a current via a pair of coil terminals 51. In other words, the coil 5 generates magnetic flux when energized.
  • the bobbin 6 has a cylindrical shape and is a resin molded body made of a material having electrical insulation properties such as a synthetic resin material.
  • the bobbin 6 is disposed such that its axial direction coincides with the first direction (vertical direction).
  • the stator 7 is a cylindrical iron core that is long in the first direction (vertical direction).
  • the stator 7 is inserted into the hollow portion of the bobbin 6 such that both ends in the longitudinal direction are exposed from the bobbin 6.
  • a first end (upper end) in the longitudinal direction of the stator 7 is fixed to a first plate 81 (described later) of the yoke 8.
  • the second end (lower end) in the longitudinal direction of the stator 7 has a bowl shape having a diameter larger than that of the intermediate portion, and faces the armature 1.
  • suction portion 71 the second end of the stator 7 is referred to as “suction portion 71”.
  • the yoke 8 together with the armature 1 and the stator 7 forms a magnetic path through which the magnetic flux generated when the coil 5 is energized passes.
  • the yoke 8 has a shape in which an intermediate portion of a rectangular plate that is long in the first direction (vertical direction) is bent, and has an L shape in plan view.
  • the yoke 8 has a first plate 81 and a second plate 82.
  • the first plate 81 is disposed on one end side (upper side) of the coil 5 in the axial direction (vertical direction).
  • the first plate 81 has an insertion hole penetrating in the thickness direction (vertical direction).
  • the first end (upper end) of the stator 7 is inserted into the insertion hole.
  • the second plate 82 is disposed on one side (front side) of the coil 5 in the third direction (front-rear direction).
  • the return spring 9 is a leaf spring that is L-shaped in plan view and is made of a metal material.
  • the return spring 9 has a first piece 91 and a second piece 92.
  • the first piece 91 is fixed to the armature 1.
  • the first piece 92 is fixed to the second plate 82 of the yoke 8.
  • the return spring 9 is configured to bend when the armature 1 is in the first position.
  • the return spring 9 causes the armature 1 to exert a force in a direction to move the armature 1 from the first position to the second position by returning to the original state.
  • the return spring 9 is configured to cause the armature 1 to act on the armature 1 in a direction to move the armature 1 from the first position to the second position by an elastic force.
  • the “first position” is a position at which a second plate 112 (described later) of the armature 1 contacts the suction portion 71 of the stator 7.
  • the “second position” is a position where the second plate 112 of the armature 1 is separated from the suction portion 71 of the stator 7.
  • the case C1 is a resin molded body made of a material having an electrical insulating property such as ceramic or synthetic resin, or a metal molded body made of a metal material such as stainless steel (SUS).
  • the case C1 houses the contact portion A1 and the electromagnet device B1. As shown in FIG. 2A, a part of each of the pair of terminal plates 2 in the contact portion A1 is exposed from the case C1. Further, a part of each of the pair of coil terminals 51 in the electromagnet device B1 is exposed from the case C1.
  • the contact device 100 of the present embodiment includes the armature 1, the mover 3 having the movable contact 31, and the fixed contact 32 facing the movable contact 31.
  • the mover 3 is connected to the armature 1 via the card 4.
  • the movable contact 31 is configured to move between a position in contact with the fixed contact 32 and a position away from the fixed contact 32 in conjunction with the armature 1 and the mover 3.
  • the contact device 100 of the present embodiment further includes an electromagnet device (power generation source) B ⁇ b> 1 that supplies power for moving the mover 3.
  • the power generation source B1 is configured to generate power by magnetic flux generated by energization of the coil 5.
  • the card 4 is pulled by the armature 1 so that the mover 3 is counterclockwise with the second end (rear end) in the longitudinal direction as a fulcrum. Rotate around. Then, the movable contact 31 moves from the open position to the closed position in contact with the fixed contact 32 (see FIG. 2B). Therefore, the contact portion A1 is turned on, and the first terminal plate 21 and the second terminal plate 22 are electrically connected.
  • the coil 5 when the coil 5 is de-energized, the coil 5 does not generate magnetic flux. Then, the magnetic attractive force between the second plate 112 of the armature 1 and the attractive portion 71 of the stator 7 is also lost. The armature 1 rotates clockwise by the elastic force of the return spring 9 and moves from the first position to the second position.
  • the card 4 is pushed by the armature 1 so that the mover 3 rotates clockwise with the second end (rear end) in the longitudinal direction as a fulcrum. Rotate to. Then, the movable contact 31 moves from the closed position to the open position away from the fixed contact 32 (see FIG. 2A). Therefore, the contact portion A1 is turned off, and the first terminal plate 21 and the second terminal plate 22 are not electrically connected.
  • the armature 1 is a metal molded body made of a metal material (for example, iron (Fe)), and includes a plate-like main portion 11 that is long in the third direction (front-rear direction). In other words, the main part 11 has a plate shape that is long in one direction (third direction).
  • the armature 1 is a rigid body and has a larger elastic coefficient than the mover 3. That is, the armature 1 is less likely to bend than the mover 3.
  • the surface of the main part 11 is plated with copper and nickel (Ni). Therefore, a copper layer having a comma number [ ⁇ m] and a nickel layer having a number [ ⁇ m] are stacked on the surface of the main portion 11.
  • the main part 11 includes a first plate 111 and a second plate 112. Both the first plate 111 and the second plate 112 are long in the third direction.
  • the dimension of the second plate 112 in the second direction (left-right direction) is larger than the dimension of the first plate 111 in the second direction.
  • a first end (front end) in the longitudinal direction of the first plate 111 is attached to a second end (lower end) in the longitudinal direction of the card 4.
  • a second end (rear end) in the longitudinal direction of the first plate 111 is integral with a first end (front end) in the longitudinal direction of the second plate 112.
  • a second end (rear end) in the longitudinal direction of the second plate 112 faces the suction portion 71 of the stator 7.
  • the armature 1 is rotatable between a first position and a second position with a longitudinal intermediate portion of the main portion 11 (here, a first end (front end) in the longitudinal direction of the second plate 112) as a fulcrum. It is configured.
  • a longitudinal intermediate portion of the main portion 11 here, a first end (front end) in the longitudinal direction of the second plate 112
  • the first plate 111 of the main portion 11 pulls the card 4.
  • the armature 1 is in the second position, the first plate 111 of the main portion 11 is pushing the card 4.
  • the main part 11 has one or more (six here) characteristic adjusting parts 12.
  • a portion of the first plate 111 of the main portion 11 that is not hidden by the second terminal plate 22 when viewed from the first direction (vertical direction) that is, a portion on the rear end side of the first plate 111).
  • a characteristic adjusting unit 12 is provided.
  • the characteristic adjustment unit 12 is a part that adjusts (determines) the warpage amount W1 of the main portion 11 in the thickness direction (vertical direction).
  • the warpage amount W1 is a deformation from a state in which the armature 1 is not bent when the armature 1 is bent by bending the armature 1 such as laser forming.
  • the warpage amount W ⁇ b> 1 is a displacement amount in the thickness direction of the main portion 11 at the front end portion (front end portion) of the first plate 111 of the main portion 11.
  • the main portion 11 (here, the first plate 111) warps in the thickness direction (vertical direction) of the main portion 11 with the portion where the characteristic adjusting portion 12 is provided as the top.
  • the tip part of the main part 11 warps downward according to the warp amount W1.
  • the armature 1 is connected to the mover 3 via the card 4. Therefore, when the armature 1 is warped downward, the position of the front end portion (front end portion) of the movable element 3 in the open position is warped as compared with the case where the armature 1 does not have the characteristic adjusting portion 12.
  • the fixed contact 32 is approached according to the amount W1.
  • the armature 1 since the armature 1 has the characteristic adjustment unit 12, the position of the movable contact 31 with respect to the fixed contact 32 when the mover 3 is in the open position is adjusted. ing. That is, in the contact device 100 of this embodiment, since the armature 1 has the characteristic adjustment unit 12, the overtravel amount is adjusted. For this reason, in the contact device 100 of this embodiment, since the armature 1 has the characteristic adjustment part 12, the electrical characteristics (such as operating voltage (stimulating voltage), return voltage (open voltage), etc. of the contact device 100 ( That is, the characteristics of the contact device 100 are adjusted.
  • the electrical characteristics such as operating voltage (stimulating voltage), return voltage (open voltage), etc.
  • the characteristic adjustment unit 12 is formed by performing laser forming on one surface (here, the lower surface) of the main portion 11 in the thickness direction (vertical direction). That is, in the present embodiment, the characteristic adjustment unit 12 is a laser forming unit.
  • the characteristic adjusting unit 12 is a linear groove 121 that is recessed in the thickness direction of the main portion 11. And in this embodiment, the groove
  • the groove 121 extends in the short direction of the main portion 11 and is at a position away from at least one edge in the short direction of the main portion 11.
  • the groove 121 formed by laser forming is a laser melting mark formed on one surface of the main portion 11. That is, it can be said that the characteristic adjusting unit 12 is a laser melting mark.
  • the characteristic adjustment unit 12 has a composition different from that of the main part 11 excluding the characteristic adjustment unit 12. For example, when the characteristic adjustment unit 12 is provided in the main part 11 by laser forming, in the characteristic adjustment unit 12, a part of the main part 11 is melted, or iron that is a main material of the main part 11 is plated. The material such as nickel and copper to be mixed is mixed.
  • the method for manufacturing the armature 1 is, in other words, a method in which the characteristic adjusting unit 12 is provided in the main portion 11 of the armature 1.
  • the timing at which the characteristic adjusting unit 12 is provided in the main portion 11 may be, for example, the final stage of the process of manufacturing the armature 1 as one component or the stage of assembling the contact device 100. Further, the timing of providing the characteristic adjusting unit 12 in the main unit 11 may be before or after the assembly of the contact device 100 is completed.
  • the characteristic adjusting unit 12 is provided in the main portion 11 of the armature 1 by laser forming using a laser device D1 and a controller D2.
  • the laser device D1 is configured to generate a laser L1 (see FIG. 5A) such as an Nd: YAG laser (wavelength 1064 [nm]) and irradiate the main part 11 with the generated laser L1.
  • the controller D ⁇ b> 2 is configured to instruct the output of the laser L ⁇ b> 1, the scanning speed, the oscillation frequency, the irradiation location, and the number of characteristic adjustment units 12 by controlling the laser device D ⁇ b> 1.
  • the controller D2 may be configured to control the laser device D1 in response to an input of the number of irradiation points of the laser L1 and the number of the characteristic adjustment units 12 by a human operation.
  • the controller D2 may be configured to control the laser device D1 by automatically determining the number of laser L1 irradiation points and the number of characteristic adjustment units 12.
  • the main part 11 is warped in the thickness direction by using thermal stress generated by a temperature gradient in the thickness direction (vertical direction) of the main part 11.
  • a laser beam L1 is irradiated to a specific portion P1 where the characteristic adjustment unit 12 is to be provided using a laser device D1.
  • the laser device D1 irradiates one surface (lower surface) of the first plate 111 of the main part 11 with the laser L1.
  • the laser device D1 irradiates the laser L1 so that the groove 121 is formed along the short direction of the first plate 111 of the main part 11.
  • the specific location P1 of the first plate 111 is heated by being irradiated with the laser L1.
  • the irradiation surface (lower surface) side of the laser L1 of the first plate 111 expands due to the heating of the laser L1, but the surface (upper surface) side opposite to the irradiation surface has a temperature. It does n’t go up enough. For this reason, the site
  • the portion including the specific portion P1 of the first plate 111 is naturally cooled. Then, the portion of the first plate 111 on the irradiation surface side of the laser L1 is contracted by being cooled, and tries to return to the original state. On the other hand, distortion due to plastic deformation remains in a portion of the first plate 111 on the side opposite to the irradiation surface of the laser L1. For this reason, as shown to FIG. 5C, the site
  • the main portion 11 (here, the first plate 111) is warped in the thickness direction (vertical direction) of the main portion 11 by being irradiated with the laser L1.
  • the illustration of the characteristic adjustment unit 12 generated by the irradiation of the laser L1 is omitted.
  • the warpage amount W1 in the thickness direction of the main portion 11 is adjusted (determined).
  • the position where the characteristic adjusting unit 12 is provided that is, the irradiation position of the laser L1, the length of the characteristic adjusting unit 12, or the characteristic adjusting unit without changing the output, scanning speed, and oscillation frequency of the laser L1.
  • the warpage amount W1 in the thickness direction of the main portion 11 is adjusted (determined) by the number of twelve.
  • the maximum value of the warpage amount W1 required when adjusting the characteristics of the contact device 100 is, for example, several hundreds [ ⁇ m] to several [mm].
  • the warpage amount W1 can be adjusted with an accuracy of about several [ ⁇ m].
  • the warpage amount W1 may not be adjusted (determined) by the length of the characteristic adjusting unit 12 or the number of the characteristic adjusting units 12.
  • the warpage amount W1 can be relatively high accuracy (for example, accuracy of several [ ⁇ m] to several tens [ ⁇ m]) by changing at least one of the output of the laser L1, the scanning speed, and the oscillation frequency. It is possible to adjust with.
  • FIGS. 6A, 6B, and 7 are diagrams in which a part of a photograph obtained by capturing a part including the characteristic adjusting unit 12 in the main part 11 of the armature 1 is converted into a gray scale.
  • 6A is a plan view in which a part of the imaging part is enlarged several tens of times
  • FIG. 6B is a plan view in which a part of the imaging part is enlarged several hundred times
  • FIG. It is sectional drawing to which a part of was expanded several hundred times.
  • the dimension of the groove 121 in the width direction (here, the front-rear direction) is about one hundred and several tens [ ⁇ m].
  • the dimension of the groove 121 in the depth direction (here, the vertical direction) is about several tens [ ⁇ m].
  • the dimension between adjacent grooves 121, that is, the pitch of the grooves 121 is about several hundreds [ ⁇ m].
  • the method of providing the characteristic adjusting unit 12 in the main part 11 of the armature 1 by the laser forming process described above is characterized by processing at least a part of at least one surface in the thickness direction of the main part 11 of the armature 1 in a non-contact manner.
  • This is a processing step for forming the adjustment unit 12.
  • a process step is one of the manufacturing processes of the armature 1 as mentioned above. That is, the manufacturing method of the armature 1 includes a processing step.
  • the timing of providing the characteristic adjusting unit 12 in the main part 11 may be not only the manufacturing stage of the armature 1 but also the manufacturing stage of the contact device 100. That is, when a processing step is used in the manufacturing stage of the contact device 100, the manufacturing method of the contact device 100 includes a processing step. Furthermore, the timing of providing the characteristic adjusting unit 12 in the main unit 11 may be a stage of adjusting the characteristics of the contact device 100 after the contact device 100 is completed. In other words, when the machining step is used after the contact device 100 is completed, the characteristic adjustment method of the contact device 100 includes the machining step.
  • the main part 11 of the armature 1 has the characteristic adjusting part 12. For this reason, in the contact device 100 of this embodiment, it is easy to adjust the position of the movable element 3 connected to the armature 1, and as a result, the position of the movable contact 31 relative to the fixed contact 32 when the movable element 3 is in the open position. Easy to adjust. Therefore, in this embodiment, there exists an advantage that the characteristic of the contact apparatus 100 is easy to adjust.
  • the main part 11 of the armature 1 made of iron as the main material has the characteristic adjusting part 12 instead of the mover 3 made of copper as the main material.
  • the characteristic adjusting unit 12 is formed by performing non-contact processing (here, laser forming processing) on the main portion 11 of the armature 1 instead of the mover 3.
  • non-contact processing here, laser forming processing
  • iron is easily deformed because the absorption rate of the laser L1 is higher than that of copper.
  • the laser forming process is performed on the main portion 11 of the armature 1, there is an advantage that the warpage amount W ⁇ b> 1 can be adjusted on the micron order.
  • the wavelength of the laser L1 is shortened and the output of the laser L1 is increased compared to the case where the main part 11 of the armature 1 is processed. There is a need to. In this case, since a high-performance laser forming device is required, the cost may increase.
  • the characteristic adjustment unit 12 is formed in the main portion 11 of the armature 1 by non-contact processing such as laser forming processing. For this reason, in this embodiment, the spring back of the workpiece (main part 11) hardly occurs. In particular, in the present embodiment, since the main part 11 of the armature 1 that is not easily deformed (that is, is a rigid body) is less deformed than the mover 3, the spring back is further less likely to occur. There is an advantage. Moreover, in this embodiment, since it does not process with respect to the needle
  • the characteristic adjusting unit 12 when the characteristic adjusting unit 12 is formed by processing the mover 3 in a non-contact manner, it may be difficult to process the mover 3 in a non-contact manner depending on the structure of the contact device.
  • the structure such as the contact device 100 of the present embodiment, since substantially the entire movable element 3 is covered with the first terminal plate 21 when viewed from the first direction (vertical direction), Therefore, it is difficult to process without contact.
  • the contact device 100 of the present embodiment the main portion 11 of the armature 1 has a portion that is not hidden by the second terminal plate 22 when viewed from the first direction. For this reason, in this embodiment, there exists an advantage that it is easy to process without contact with respect to the main part 11 of the armature 1.
  • the characteristic adjustment unit 12 adjusts (determines) the warpage amount W1 in the thickness direction of the main portion 11 of the armature 1, but the present invention is not limited to this.
  • the main part 11 may have another characteristic adjustment unit different from the characteristic adjustment unit 12.
  • the main part 11 may be warped so as to eliminate twist by forming another characteristic adjustment part in the main part 11 by, for example, laser forming.
  • the main part 11 of the armature 1 has the six characteristic adjustment parts 12, but the present invention is not limited to this.
  • the main part 11 may include five or less characteristic adjusting units 12 or may include seven or more characteristic adjusting units 12.
  • the characteristic adjustment unit 12 is provided on the first plate 111 of the main part 11, but may be provided on another part of the main part 11 such as the second plate 112.
  • the pitches (that is, the intervals in the front-rear direction) of the plurality of characteristic adjustment units 12 may all be equal or different from each other.
  • the plurality of characteristic adjustment units 12 may have the same length in the longitudinal direction (left and right direction) or may be different from each other.
  • the characteristic adjusting unit 12 may extend to both end edges in the lateral direction (left-right direction) of the main unit 11 (here, the first plate 111) as shown in FIG. 8A, for example. In the present embodiment, the characteristic adjustment unit 12 may not be orthogonal to the direction along the edge of the main portion 11 in the short direction, as shown in FIG. 8B, for example. Good.
  • the length of the characteristic adjustment unit 12 in the longitudinal direction (left-right direction) is less than half the length of the main part 11 in the short direction (left-right direction), for example, as shown in FIG. 8C. There may be.
  • the characteristic adjustment unit 12 may have a broken line shape extending in the short direction of the main part 11 as shown in FIG. 8D, for example.
  • the characteristic adjustment unit 12 extends in the short direction (left-right direction) of the main portion 11 and is bent at one or more points in the middle. Good.
  • the characteristic adjustment unit 12 may have a zigzag shape extending in the short direction of the main part 11 as shown in FIG. 9C, for example.
  • the characteristic adjustment unit 12 may have a curved shape extending in the short direction of the main portion 11 as shown in FIG. 9D, for example.
  • the characteristic adjustment unit 12 includes a linear portion extending in the short direction (left-right direction) of the main portion 11, and one or more folded portions, and , May meander.
  • the characteristic adjusting unit 12 may be circular as shown in FIG. 10B, for example.
  • the characteristic adjustment unit 12 may have a linear shape extending in the longitudinal direction (front-rear direction) of the main part 11 instead of the short direction (left-right direction) of the main part 11.
  • the characteristic adjusting unit 12 may have a linear shape extending in the longitudinal direction of the main portion 11 as shown in FIG. 10C or a zigzag shape extending in the longitudinal direction of the main portion 11 as shown in FIG. 10D. Also good.
  • the main part 11 of the armature 1 has a plate shape that is long in one direction, but the present invention is not limited to this.
  • the main part 11 of the armature 1 may have an annular shape as shown in FIG. 11A or a fan shape as shown in FIG. 11B (a shape obtained by removing the smaller fan shape from the larger fan shape).
  • the characteristic adjusting unit 12 may be a curved groove 121 along the circumferential direction of the main part 11 of the armature 1 as shown in FIG. 11C, for example, as shown in FIG. 11D.
  • the linear (or radial) groove 121 along the radial direction of the main portion 11 of the armature 1 may be used.
  • the characteristic adjustment unit 12 may have a shape other than the above shape.
  • the main part 11 of the armature 1 may have a triangular shape as shown in FIGS. 12A and 12B, for example.
  • the characteristic adjustment unit 12 may be a linear groove 121 parallel to the base of the main part 11 (here, the side along the front-rear direction).
  • channel 121 inclined with respect to the base of the main part 11 may be sufficient.
  • the characteristic adjustment unit 12 may have a shape other than the above shape.
  • the main part 11 of the armature 1 may have a trapezoidal shape as shown in FIG. 12C, for example.
  • the characteristic adjustment unit 12 may be a linear groove 121 parallel to the bottom side of the main part 11 (here, the side along the front-rear direction).
  • the characteristic adjustment unit 12 may have a shape other than the above shape.
  • Each of the manufacturing method of the armature 1, the manufacturing method of the contact device 100, and the characteristic adjustment method of the contact device 100 may include a measurement step and a correction step in addition to the processing step.
  • the measurement step is a step of measuring characteristics of the armature 1 or the contact device 100 processed in the processing step. For example, in the measurement step, the characteristics of the armature 1 such as the dimensions of the armature 1 and the warping amount W1 may be measured, or the electrical characteristics of the contact device 100 such as the operating voltage and the return voltage may be measured.
  • the correction step is a step of further forming a characteristic adjustment unit 12 in the main portion 11 of the armature 1 based on the characteristic value of the armature 1 or the contact device 100 measured in the measurement step.
  • the characteristic adjustment is performed on the main portion 11 so that the difference between the measured warpage amount W1 and the target value of the warpage amount W1 approaches zero in the correction step.
  • the part 12 is further formed.
  • the method including the processing step, the measurement step, and the correction step is a method of forming the characteristic adjustment unit 12 in the main portion 11 of the armature 1 by feedback control.
  • the measurement step and the correction step may be repeated a plurality of times until the characteristics of the armature 1 or the contact device 100 become desired characteristics.
  • the laser device D1, the controller D2, and a measuring device may be provided.
  • the measuring device only needs to be configured to measure the characteristic of the armature 1 or the contact device 100 and output the measured characteristic value to the controller D2.
  • the controller D2 then forms a characteristic adjustment unit 12 in the main unit 11 for making the difference between the characteristic value from the measuring device and the target value of the characteristic of the armature 1 or the contact device 100 close to zero. What is necessary is just to be comprised so that D1 may be controlled.
  • the characteristic adjusting unit 12 is provided by laser forming, but the processing method is not limited to this.
  • the characteristic adjustment unit 12 may be provided by gas welding.
  • the characteristic adjustment unit 12 may be provided by, for example, spark forming. That is, the characteristic adjusting unit 12 may be formed by processing at least a part of at least one surface in the thickness direction of the main portion 11 in a non-contact manner.
  • the contact device 100 of the present embodiment is a non-polar relay, but may be a polar relay. Further, the contact device 100 of the present embodiment includes the electromagnet device B1 as the power generation source B1, but the electromagnet device B1 is not an essential component in the contact device 100. Further, the contact device 100 is not limited to an electromagnetic relay, and can be applied to, for example, a switch, a breaker, or the like. In these cases, the power generation source B1 may be, for example, an operation handle that receives a human operation in addition to the electromagnet device B1.
  • the armature (1) for the contact device (100) includes the plate-shaped main portion (11).
  • the main part (11) is connected to a movable element (3) having a movable contact (31).
  • the main part (11) receives power from an electromagnet device (power generation source) (B1), and a closed position where the movable contact (31) contacts the fixed contact (32), and the movable contact (31) is a fixed contact (
  • the mover (3) is moved between the open position away from 32).
  • the main part (11) has, on at least one surface in the thickness direction of the main part (11), a characteristic adjustment part (12) that adjusts (determines) the warpage amount (W1) of the main part (11) in the thickness direction. .
  • the main part (11) has the characteristic adjustment part (12), it is easy to adjust the position of the movable element (3) connected to the armature (1). That is, according to this configuration, there is an advantage that the position of the movable contact (31) with respect to the fixed contact (32) can be easily adjusted, and as a result, the characteristics of the contact device (100) can be easily adjusted.
  • the characteristic adjustment unit (12) is a laser forming unit.
  • the characteristic adjusting section (12) is formed without mechanical contact with the armature (1) by laser forming. That is, according to this configuration, it is possible to adjust the characteristics of the contact device (100) after the assembly of the contact device (100). Therefore, according to this configuration, the dimensional accuracy of each component (for example, the armature (1), the mover (3), etc.) constituting the contact device (100), or when assembling the contact device (100) is required. There is an advantage that the required accuracy of assembly accuracy can be relaxed.
  • the characteristic adjustment unit (12) may be a gas welding unit or a spark forming unit.
  • the characteristic adjusting part (12) is a line that is depressed in the thickness direction of the main part (11). Shaped groove (121).
  • the characteristic adjustment unit (12) may be a dot-like depression that is recessed in the thickness direction of the main part (11).
  • the main part (11) has a plate shape that is long in one direction.
  • the groove (121) extends in the short direction of the main part (11) and is orthogonal to the longitudinal direction of the main part (11).
  • the amount of warpage (W1) in the thickness direction of the main portion (11) is mainly adjusted by adjusting the length of the groove (121) in the longitudinal direction or the depth of the groove (121). easy.
  • this configuration is not essential, and the groove (121) may not be orthogonal to the longitudinal direction of the main portion (11). Moreover, the groove
  • the main part (11) has a plate shape that is long in one direction.
  • the groove (121) extends in the short direction of the main part (11) and is located at a position away from at least one edge in the short direction of the main part (11).
  • the method for manufacturing the armature (1) for the contact device (100) according to the sixth aspect is the method for manufacturing the armature (1) for the contact device (100) of any one of the first to fifth aspects. And includes processing steps.
  • the processing step is a step of forming the characteristic adjustment portion (12) by processing a part of at least one surface in the thickness direction of the main portion (11) in a non-contact manner.
  • This method makes it easy to adjust the position of the movable element (3) connected to the armature (1) because the characteristic adjusting part (12) is easily formed in the main part (11). That is, according to this method, there is an advantage that the position of the movable contact (31) with respect to the fixed contact (32) can be easily adjusted, and as a result, the characteristics of the contact device (100) can be easily adjusted.
  • a contact device (100) includes an armature (1), a mover (3), and a fixed contact (32) for the contact device (100) of any one of the first to fifth aspects. And comprising.
  • the mover (3) has a movable contact (31) and is connected to the armature (1).
  • the fixed contact (32) faces the movable contact (31).
  • the movable contact (31) is interlocked with the armature (1) and the movable element (3) so as to move between a position in contact with the fixed contact (32) and a position away from the fixed contact (32). Composed.
  • the main part (11) has the characteristic adjustment part (12), it is easy to adjust the position of the movable element (3) connected to the armature (1). That is, according to this configuration, there is an advantage that the position of the movable contact (31) with respect to the fixed contact (32) can be easily adjusted, and as a result, the characteristics of the contact device (100) can be easily adjusted.
  • a contact device (100) is the seventh aspect, wherein an electromagnet device (power generation source) (B1) that applies power for moving the mover (3) to the armature (1) is provided.
  • the power generation source (B1) is configured to generate power by magnetic flux generated by energization of the coil (5).
  • This configuration has the advantage that the contact device (100) can be provided as an electromagnetic relay. However, this configuration is not essential, and the power generation source (B1) may be other than the electromagnet device (B1). Further, the contact device (100) may not include the power generation source (B1).
  • a method for manufacturing the contact device (100) according to the ninth aspect is a method for manufacturing the contact device (100) according to the seventh or eighth aspect, and includes a processing step.
  • the processing step is a step of forming the characteristic adjustment portion (12) by processing a part of at least one surface in the thickness direction of the main portion (11) in a non-contact manner.
  • This method makes it easy to adjust the position of the movable element (3) connected to the armature (1) because the characteristic adjusting part (12) is easily formed in the main part (11). That is, according to this method, there is an advantage that the position of the movable contact (31) with respect to the fixed contact (32) can be easily adjusted, and as a result, the characteristics of the contact device (100) can be easily adjusted.
  • the characteristic adjustment method of the contact device (100) includes a processing step for the armature (1) for the contact device (100).
  • the armature (1) includes a plate-shaped main portion (11).
  • the main part (11) is connected to a movable element (3) having a movable contact (31).
  • the main part (11) receives power from an electromagnet device (power generation source) (B1), and a closed position where the movable contact (31) contacts the fixed contact (32), and the movable contact (31) is a fixed contact ( The mover (3) is moved between the open position away from 32).
  • the processing step is a characteristic of adjusting (determining) the warpage amount (W1) in the thickness direction of the main portion (11) by processing at least a part of at least one surface in the thickness direction of the main portion (11) in a non-contact manner. This is the step of forming the adjustment section (12).
  • This method makes it easy to adjust the position of the movable element (3) connected to the armature (1) because the characteristic adjusting part (12) is easily formed in the main part (11). That is, according to this method, there is an advantage that the position of the movable contact (31) with respect to the fixed contact (32) can be easily adjusted, and as a result, the characteristics of the contact device (100) can be easily adjusted.
  • the armature 1 for the contact device 100 according to the embodiment, the method for manufacturing the armature 1 for the contact device 100, the contact device 100, the method for manufacturing the contact device 100, and the method for adjusting the characteristics of the contact device 100 have been described.
  • the embodiment described above is only one of various embodiments of the present invention.
  • the above-described embodiment can be variously changed according to the design or the like as long as the object of the present invention can be achieved.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Switches (AREA)

Abstract

La présente invention aborde le problème relatif à la facilitation du réglage des caractéristiques d'un dispositif de contact. Une armature de dispositif de contact (1) est pourvue d'une partie principale (11) de type plaque. La partie principale (11) est reliée à un dispositif de déplacement présentant un contact mobile. La partie principale (11) reçoit une énergie motrice provenant d'un dispositif à électroaimant (source de génération d'énergie motrice), et amène le dispositif de déplacement à se déplacer entre une position fermée où le contact mobile entre en contact avec un contact fixe et une position ouverte où le contact mobile se sépare du contact fixe. La partie principale (11) présente, au moins sur une surface dans le sens de l'épaisseur de la partie principale (11), une partie de réglage de caractéristiques (12) permettant de régler (déterminer) le degré de gauchissement dans le sens de l'épaisseur de la partie principale (11).
PCT/JP2018/015477 2017-04-14 2018-04-13 Armature de dispositif de contact et son procédé de fabrication, dispositif de contact et son procédé de fabrication, et procédé de réglage de caractéristiques de dispositif de contact WO2018190409A1 (fr)

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JP2017-080944 2017-04-14
JP2017080944 2017-04-14

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01227279A (ja) * 1988-03-08 1989-09-11 Fujitsu Ltd スプリングアームの成形加工方法
US5341256A (en) * 1990-11-27 1994-08-23 Matsushita Electric Industrial Co., Ltd. Rotary head adjuster
JP2001185016A (ja) * 1999-10-15 2001-07-06 Matsushita Electric Works Ltd リレーの製造方法及び製造装置
JP2004063217A (ja) * 2002-07-26 2004-02-26 Matsushita Electric Works Ltd 密封リレーの封止方法及び封止構造とその装置
JP2011060547A (ja) * 2009-09-09 2011-03-24 Fujitsu Component Ltd 電磁継電器
JP2016190732A (ja) * 2015-03-31 2016-11-10 Tdk株式会社 部品搬送用インデックステーブル、その製造方法および部品搬送装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01227279A (ja) * 1988-03-08 1989-09-11 Fujitsu Ltd スプリングアームの成形加工方法
US5341256A (en) * 1990-11-27 1994-08-23 Matsushita Electric Industrial Co., Ltd. Rotary head adjuster
JP2001185016A (ja) * 1999-10-15 2001-07-06 Matsushita Electric Works Ltd リレーの製造方法及び製造装置
JP2004063217A (ja) * 2002-07-26 2004-02-26 Matsushita Electric Works Ltd 密封リレーの封止方法及び封止構造とその装置
JP2011060547A (ja) * 2009-09-09 2011-03-24 Fujitsu Component Ltd 電磁継電器
JP2016190732A (ja) * 2015-03-31 2016-11-10 Tdk株式会社 部品搬送用インデックステーブル、その製造方法および部品搬送装置

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