EP3021341B1 - Kontaktmechanismus - Google Patents

Kontaktmechanismus Download PDF

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Publication number
EP3021341B1
EP3021341B1 EP14822761.4A EP14822761A EP3021341B1 EP 3021341 B1 EP3021341 B1 EP 3021341B1 EP 14822761 A EP14822761 A EP 14822761A EP 3021341 B1 EP3021341 B1 EP 3021341B1
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EP
European Patent Office
Prior art keywords
contact
movable contact
plate
stationary
movable
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.)
Active
Application number
EP14822761.4A
Other languages
English (en)
French (fr)
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EP3021341A1 (de
EP3021341A4 (de
Inventor
Kei Takahashi
Yuji Kozai
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.)
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Publication date
Application filed by Omron Corp, Omron Tateisi Electronics Co filed Critical Omron Corp
Publication of EP3021341A1 publication Critical patent/EP3021341A1/de
Publication of EP3021341A4 publication Critical patent/EP3021341A4/de
Application granted granted Critical
Publication of EP3021341B1 publication Critical patent/EP3021341B1/de
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
    • H01H1/28—Assembly of three or more contact-supporting spring blades
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/645—Driving arrangements between movable part of magnetic circuit and contact intermediate part making a resilient or flexible connection
    • H01H50/646—Driving arrangements between movable part of magnetic circuit and contact intermediate part making a resilient or flexible connection intermediate part being a blade spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2227—Polarised relays in which the movable part comprises at least one permanent magnet, sandwiched between pole-plates, each forming an active air-gap with parts of the stationary magnetic circuit

Definitions

  • the present invention relates to a contact mechanism and, more particularly, to a contact mechanism incorporated in a switching device such as an electromagnetic relay.
  • a contact mechanism incorporated in a switching device such as an electromagnetic relay which is disclosed and illustrated in Fig. 1 of Patent Document 1, for example.
  • a movable contact terminal 2 and a movable contact plate 4 are positioned to oppose to each other.
  • a contact button 6 of the movable contact plate 4 is configured so that, when a voltage is applied to the relay, the button 6 is moved away from a contact button 3 of a stationary contact terminal to cause a repelling force which is used for preventing a disconnection between contacts.
  • Patent Document 1 US Patent No. 6, 661, 319
  • the repelling force is unlikely to be well controlled, which can result in an unwanted disconnection of the contacts.
  • the opposed arrangement of the movable contact terminal 2 and the movable contact plate 4 may result in an enlargement of the movable contact terminal 2 which consumes a greater material for its production. This may result in an inefficient utilization of a space in the electromagnetic relay and also an increase the cost for producing it.
  • a contact mechanism comprising the features of the preamble of claim 1 is known from JP H06 103878 A .
  • an object of the present invention to provide a contact mechanism which has an enhanced contact reliability and space utilization and is economically produced.
  • a contact mechanism comprises a stationary contact provided on a stationary contact terminal, and a movable contact provided on a movable contact plate, the stationary contact and the movable contact being opposed to enable approach/separation, and at least a pair of auxiliary attracting means disposed to oppose both ends is provided opposite to the stationary contact terminal and the movable contact plate, and an electric path passing through the stationary contact terminal and the movable contact plate through the pair of auxiliary attracting means is provided with insulating means for preventing the pair of auxiliary attracting means from being mutually attracted and the stationary contact terminal and a movable contact terminal from being conducted through the pair of auxiliary attracting means when the stationary contact and the movable contact come in contact with each other so that the stationary contact terminal and the movable contact terminal are set into a conducting state.
  • a magnetic flux is generated in the pair of auxiliary attracting means and a attraction force is generated between the auxiliary attracting means in an operation. For this reason, it is possible to increase a contact force between the stationary contact and the movable contact without disposing the movable contact terminal and the movable contact plate opposite to each other as in the related art. Therefore, it is possible to improve contact reliability, furthermore, to reduce the movable contact terminal, thereby enhancing a space efficiency.
  • the insulating means is provided in at least one place between the stationary contact terminal and the auxiliary attracting means of the stationary contact terminal, between the movable contact plate and the auxiliary attracting means of the movable contact plate or in opposed portions of the pair of auxiliary attracting means.
  • the pair of auxiliary attracting means can be insulated effectively from each other. Therefore, it is possible to ensure a stable attraction force between the auxiliary attracting means.
  • the clearance is provided between the auxiliary attracting means. Therefore, heat is not generated in the operation. Therefore, the movable contact plate can be formed thinly so that a manufacturing cost can be reduced.
  • an interval of the clearance is equal to or smaller than 0.5 mm.
  • auxiliary attracting means is disposed on a free end of the movable contact plate.
  • auxiliary attracting means is disposed in a non-conducting portion of the movable contact plate.
  • the attraction force between the stationary contact and the movable contact is further increased. Therefore, it is possible to obtain a contact mechanism having high contact reliability.
  • a degree of freedom of a design can be increased so that the design can easily be carried out.
  • a degree of freedom of a design can be increased so that the design can easily be carried out.
  • an electromagnetic relay according to another aspect is characterized by the auxiliary attracting means.
  • an electromagnetic relay including a contact mechanism having high contact reliability, a high space efficiency and a small manufacturing cost.
  • An exemplified embodiment of the electromagnetic relay which is a self-holding type electromagnetic relay, has a box-shaped base 10, an electromagnet block 20, a rotating block 30, a contact mechanism 50, a support plate 70, and a cover 80.
  • the box-like base 10 has a first receiving portion 12 for receiving the electromagnet block 20, a second receiving portion 13 for receiving the contact mechanism 50, and an insulating wall 11 provided between the first receiving portion 12 and the second receiving portion 13 .
  • the insulating wall 11 is formed to extend perpendicularly from a side surface 10A of the base 10 to a position which corresponds to a central portion of another side surface 10B.
  • a driving arm 35 of the rotating block 30, which will be described below, is positioned at the opening formed in front of the insulating wall 11 between the first receiving portion 12 and the second receiving portion 13.
  • the base 10 has shallow recesses or grooves 14a formed vertically in respective outer surfaces thereof and projected engaging portions 14b formed on respective bottom surfaces of the shallow grooves 14a.
  • the side wall 10C of the base 10 has a terminal receiving slot 15c formed in one end portion thereof (upper-right side portion in Figs. 2A and 2B ) for receiving a pair of coil terminals 29 of the electromagnet block 20.
  • the side surface 10B of the base 10 has terminal receiving slots 15a and 15b formed on opposite ends thereof for receiving stationary and movable contact terminals 51 and 54, respectively.
  • the electromagnet block 20 has a spool 21 with opposite flanges 22a and 22b formed therewith, an iron core 24 inserted in a through-hole 22c defined in the spool 21, a coil 23 wound around the spool 21, and yokes 25 and 27 fixed at opposite ends of the iron core 24 projected from the spool 21.
  • the yokes 25 and 27 are made of substantially L-shaped magnetic plate and have transversely-extended wide portions 26 and 28, respectively.
  • the flange 22a of the spool 21 has terminal holes defined therein. A pair of coil terminals 29 are press-fitted in the terminal holes. The opposite ends of the coil 23 are wound around the coil terminals 29 and soldered thereto.
  • the electromagnet block 20 is press-fitted in the base 10 with the wide portions 26 and 28 engaged in the positioning recesses (not shown) and thereby fixed in place in the base 10. As such, the arrangement of the wide portions 26 and 28 can minimize a possible displacement of the electromagnet block 20 relative to the rotating block 30 described below.
  • the upward and downward extending arrangement of the wide portions 26 and 28 allows a single component to be commonly used for the yokes, which reduces a manufacturing cost of the electromagnetic relay.
  • the coil terminal 29 does not need to be a simple bar-like member, and it may be substantially a T-shaped member, for example.
  • the rotating block 30 has a rotating block body 33 and the driving arm 35.
  • the rotating block body 33 has a permanent magnet (not shown) and a pair of plate-like movable iron plates 31 and 32 holding the permanent magnet therebetween, both integrally insert-molded in the rotating block body 33.
  • the rotating block body 33 also has rotating shafts 34a and 34b aligned coaxially and projected from the upper and lower surfaces thereof and a driving arm 35 integrally molded on the side surface of the rotating block body 33.
  • the driving arm 35 is extended outward along the movable iron plate 32.
  • the driving arm 35 has a bent nail 36 formed at a distal end thereof.
  • the contact mechanism 50 has the stationary contact terminal 51 and the movable contact terminal 54.
  • the movable contact terminal 54 has a movable contact plate 60.
  • the stationary contact terminal 51 which is substantially L-shaped, has a stationary contact 52 fixed on one end thereof. Also, the stationary contact terminal 51 has an auxiliary attracting means or first electromagnetic iron plate 90 mounted on an electrically conducting portion thereof between the stationary contact 52 and the bent portion 53. The stationary contact terminal 51 has cutouts 55 formed on its longitudinal edges for engagement with the electromagnetic iron plate 90.
  • the first electromagnetic iron plate 90 which has a square-bracket cross section, has a planar portion 90a and projecting portions 90b projecting from the opposite ends of the planar portion 90a in the same direction.
  • the planar portion 90a and the projecting portions 90b have the same transverse width.
  • the first electromagnetic iron plate 90 is fixed to the stationary contact terminal 51 with the projecting portions 90b engaged with and projected through the cutouts 55 and 55.
  • the movable contact terminal 54 has an L-shaped cross section which is bent at a position different from that in the stationary contact terminal 51.
  • the movable contact terminal 54 supports the movable contact plate 60 fixed to one end thereof .
  • the movable contact plate 60 which is made of three - first, second, and third-conductive thin plate springs 61, 65, and 67 stacked in this order, supports a movable contact 56 and an auxiliary attracting means or second electromagnetic iron plate 91 fixed at distal end thereof .
  • the movable and stationary contact terminals 54 and 51 are electrically connected through the movable and stationary contacts 56 and 52 but, in this condition, no electricity flows in the distal end portion of the movable contact plate 60.
  • the second electromagnetic iron plate 91 is mounted in a non-electrically conducting portion of the movable contact plate 60.
  • the first conductive thin plate spring 61 has a spring coefficient adjusting slit 62a formed therein to extend in a proximal to distal direction and a substantially U-shaped fold 63a formed at a mid-portion thereof for accommodating and relieving expansion and contraction thereof caused in the movement of the spring and thereby ensuring a smooth movement of the spring.
  • the first conductive thin plate spring 61 is divided into two transversely neighboring prongs- driving elastic tongue 64a and remaining divided piece 64b.
  • the divided piece 64b supports the movable contact 56 and the second electromagnetic iron plate 91 fixed thereto.
  • the second conductive thin plate spring 65 has a spring coefficient adjusting slit 62b formed therein to extend in a proximal to distal direction and a substantially U-shaped fold 63a formed at a mid-portion thereof for accommodating and relieving expansion and contraction thereof caused in the movement of the spring and thereby ensuring a smooth movement of the spring.
  • the second conductive thin plate spring 65 has a cutout 66a formed at one distal end corner opposing the driving elastic tongue 64a of the first conductive thin plate spring 61 to define an attaching piece 66b.
  • the attaching piece 66b supports the movable contact 56 and the second electromagnetic iron plate 91 fixed thereto.
  • the third conductive thin plate spring 67 has a substantially U-shaped fold 63c formed at a mid-portion thereof for accommodating and relieving expansion and contraction thereof caused in the movement of the spring and thereby ensuring a smooth movement of the spring.
  • the spring coefficient of the first and second conductive thin plate springs 61 and 65 may be controlled as necessary by adjusting the width and/or length of the slits 62a and 62b, respectively. This facilitates the adjustment of the spring load caused in the connecting and disconnecting operations, and increases design flexibility.
  • the second electromagnetic iron plate 91 which is in the form of square-bracket as electromagnetic iron plate 90, has a planar portion 91a and projecting portions 91b projecting from the opposite ends of the planar portion 91a in the same direction.
  • the second electromagnetic iron plate 91 is held on the distal end of the movable contact plate 60 by fixing the planar portion 91a to the movable contact plate 60, with the projecting portions 91b projected toward the stationary contact terminal 51.
  • the first and the second electromagnetic iron plates 90 and 91 have substantially the same outer configuration.
  • the support plate 70 which is made of a substantially S-shaped plate, has a bearing hole 71 formed at a mid-portion thereof, for receiving a rotating shaft 34b of the rotating block 30 engaged therein.
  • the support plate 70 also has a fitting hole 72 and a fitting projection 73 formed at opposite ends thereof for fixing it to the base 10. Therefore, the engaging projection 16 of the base 10 is fitted in the fitting hole 72, and the fitting projection 73 of the support plate 70 is fitted in the fitting hole 17 of the base 10, which ensures a precise assembling and positioning of the rotating block 30.
  • the cover 80 has a rectangular configuration which covers the opening of the base 10 and has elastic engaging portions 81 extending downward from respective peripheral edges.
  • the electromagnetic relay when de-energized, the electromagnetic relay takes the original position in which one end 31b of the movable iron plate 31 of the rotating block 30 is attracted to the yoke 25 and the other end 32a of the movable iron plate 32 is attracted to the yoke 27 by a magnetic force of a permanent magnet (not shown).
  • the distal end of the driving arm 35 of the rotating block 30 is positions between the projecting portions 91b of the second electromagnetic iron plate 91 to raise the movable contact plate 60, which causes the movable contact 56 is kept away from the stationary contact 52.
  • the movable and stationary contacts 56 and 52 are connected to each other. This allows an electric current to flow between the stationary and movable contact terminals 51 and 54, causing a magnetic field which extends through the first and second electromagnetic iron plates 90 and 91.
  • the generated magnetic field causes an attraction force F between the first and second electromagnetic iron plates 90 and 91 to prevent the connection between the movable and stationary contacts 56 and 52 from being broken by electromagnetic repulsion which may occur at the application of electric current.
  • a gap D exists between the first and second electromagnetic iron plates 90 and 91 (see Fig. 6 )
  • no electric current flows therebetween. This prevents the first and second electromagnetic iron plates 90 and 91 from heating, allowing the movable contact plate 60 to have a smaller thickness and to be manufactured economically.
  • the gap D between the first and second electromagnetic iron plates 90 and 91 may be replaced by any insulating means or member.
  • the insulating means may be provided in a portion between the first electromagnetic iron plate 90 and the stationary contact terminal 51 and/or in a portion between the second electromagnetic iron plate 91 and the movable contact plate 60, in each of which no electric current flows between the stationary and movable contact terminals 51 and 54 through the first and second electromagnetic iron plates 90 and 91.
  • the insulating member may be made from molding material such as PBT (polybutylene terephthalate) and LCP (liquid crystal polymer) or insulating material such as rubber.
  • the insulating member may be made from the same material as the base 10.
  • An insulating layer may be made by plating an insulating film on the electromagnetic iron plates.
  • the driving arm 35 When a voltage is applied to the coil 23 in an opposite direction, the driving arm 35 is forced in a direction away from the movable contact terminal 54 by the spring force of the movable contact plate 60. Then, one end 31b of the movable iron plate 31 of the rotating block 30 is attracted to the yoke 25 and the other end 32a of the movable iron plate 32 is attracted to the yoke 27 by the magnetic force of the permanent magnet, which rotates the rotating block 30 into the original position shown in Fig. 2A .
  • the attraction force F generated between the first and second electromagnetic iron plates 90 and 91 always exists irrespective of the flowing direction of the electric current. Namely, the magnetic field is constantly generated in the first and second electromagnetic iron plates 90 and 91 to cause the attraction force F between the first and second electromagnetic iron plates 90 and 91 irrespective of whether the electric current flows from the movable contact terminal 54 to the stationary contact terminal 51 or vice versa.
  • the magnetic flux is generated in the first and second electromagnetic iron plates 90 and 91 to cause the attraction force therebetween.
  • This increases a contact force between the stationary contact 52 and the movable contact 56 to result in a reliable contact therebetween irrespective of whether the movable contact terminal 54 and the movable contact plate 60 oppose to each other. Also, this also results in a miniaturization of the contact mechanism 50 and an effective utilization of space in the electromagnetic relay.
  • the movable contact plate 60 does not interfere with the driving arm 35 of the rotating block 30, which facilitates the assembling of and increases the productivity of the electromagnetic relay.
  • first electromagnetic iron plate 90 is positioned in a passage where the electric current flows toward the stationary contact 52 and the second electromagnetic iron plate 91 is positioned at a distal end portion of the movable contact plate 60 where no electric current flows, an enhanced contact force is obtained with less attraction force.
  • the positions of the first and second electromagnetic iron plate 90 and 91 are not limited thereto.
  • the first electromagnetic iron plate 90 may be provided in the portion of the stationary contact terminal 51 where no electric current flows
  • the second electromagnetic iron plate 91 may be provided at a distal end portion of the movable contact plate 60 of the movable contact terminal 54 where the electric current flows, in each of which an enhanced contact force is obtained.
  • the stationary contact 52 and the first electromagnetic iron plate 90, and the movable contact 56 and the second electromagnetic iron plate 91 may be positioned on the same line running in the transverse direction.
  • the second electromagnetic iron plate 91 is fixed to the movable contact plate 60, this is not restrictive to the invention and the second electromagnetic iron plate 91 may be soldered to the movable contact plate 60, for example.
  • the soldering is more advantageous than the mechanical fixing in increasing the assembling precision.
  • the first electromagnetic iron plate 90 may be integrally formed in the stationary contact 52, and the second electromagnetic iron plat e91 may be integrally formed in the movable contact plate 60. In this instance, the number of components can be reduced.
  • the contact surfaces of the stationary contact 52 and the movable contact 56 are outwardly curved in this embodiment, this is not restrictive and they may be a flat, tapered or spherical surface.
  • both the first and second electromagnetic iron plates 90 and 91 of the contact mechanism 50 have a substantially square-bracket cross section in this embodiment, this is not restrictive.
  • the first electromagnetic iron plate 190 may have an L-shaped cross section.
  • one the first electromagnetic iron plate 290 may have a square bracket cross section in which one of two projections has a different size than the other.
  • the second electromagnetic plate 391 may have a plate configuration.
  • the first electromagnetic plate 490 may have a plate configuration.
  • first and second electromagnetic iron plates 90 and 91 in which the distal end surface of the projecting portions 90b and 91b are made of flat surfaces as shown in Fig. 9
  • the invention is not limited thereto.
  • first and second electromagnetic iron plates 490 and 491 may be used in which the distal end surfaces of the projections have concave portions formed thereon.
  • first and second electromagnetic iron plates 590 and 591 may be used in which three concave portions are formed therein.
  • Fig. 10 first and second electromagnetic iron plates 490 and 491 may be used in which the distal end surfaces of the projections have concave portions formed thereon.
  • first and second electromagnetic iron plates 590 and 591 may be used in which three concave portions are formed therein.
  • first and second electromagnetic iron plates 690 and 691 may be used in which the distal end surfaces of the projections have three concave portions and the remaining convex portions with distal ends thereof rounded.
  • first and second electromagnetic iron plates 790 and 791 may be used in which the distal end surfaces of the projections are in the form of tapered triangles.
  • first and second electromagnetic iron plates 890 and 891 may be used in which the distal end surfaces of the projections are rounded in arc.
  • first and second electromagnetic iron plates 990 and 991 may be used in which the distal end surfaces of the projections have three concave portions and the remaining convex portions with distal ends thereof chamfered.
  • the electromagnetic iron plate in Fig. 8 may be combined with any one of other electromagnetic iron plates shown in Figs . 9-15 .
  • the present invention is not restricted thereto and a plurality pairs of electromagnetic iron plates may be provided in which, because an increased attraction force is obtained between the stationary and movable contacts 52 and 56, a high contact reliability is obtained in the contact mechanism.
  • the electromagnetic relay according to the embodiment was used.
  • the first electromagnetic iron plate 90 and the second electromagnetic iron plate 191 having the patterns shown in Fig. 8(c) were used as the electromagnetic iron plates.
  • the stationary contact terminal 51 and the movable contact terminal 54 having a width of 10 mm were used.
  • An iron plate with the planar portion 90a having a width of 3 mm, a length of 12 mm, and a thickness of 1 mm and the projecting portion 90b having a width of 3 mm, a length of 3 mm, and a thickness of 1 mm was used for the first electromagnetic iron plate 90 (square bracket shaped iron plate) .
  • An iron plate having a width of 3 mm, a length of 12 mm, and a thickness of 1 mm was used for the second electromagnetic iron plate 191 (plate-shaped iron plate).
  • a current having a magnitude of 2.5 kArms was applied to flow from the movable contact terminal 54 to the stationary contact terminal 51.
  • the attraction force F is 20 % when the air gap is 2.0 mm
  • the attraction force F is 25 % when the air gap is 1.5 mm
  • the attraction force F is 34 % when the air gap is 1.0 mm
  • the attraction force F is 56 % when the air gap is 0.5 mm
  • the attraction force F is 170 % when the air gap is 0.1 mm.
  • the gap D between the electromagnetic iron plates is reduced, the attraction force F acting between the electromagnetic iron plates is increased.
  • the gap D between the electromagnetic iron plates is increased excessively, the attraction force is reduced and the size of the electromagnetic relay is increased. Accordingly, the result shows that the gap D between the electromagnetic iron plates is preferably greater than 0 and equal to or smaller than 0.5 mm.
  • the movable contact plate and the contact mechanism according to the present invention are not restricted to be used in the electromagnetic relay described above, but they may be used in another electromagnetic relays.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Contacts (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Push-Button Switches (AREA)

Claims (8)

  1. Kontaktmechanismus (50), mit
    einer feststehenden Kontaktklemme (51);
    einem feststehenden Kontakt (52), der auf der feststehenden Kontaktklemme (51) getragen wird;
    einer bewegbaren Kontaktplatte (60), und
    einem bewegbaren Kontakt (56), der auf der bewegbaren Kontaktplatte (60) getragen wird;
    wobei die feststehende Kontaktklemme (51) und die bewegbare Kontaktplatte (60) derart positioniert sind, dass der bewegbare Kontakt (56) den feststehenden Kontakt (52) kontaktieren kann,
    wobei der Kontaktmechanismus ferner Folgendes umfasst
    mindestens ein Paar von ersten und zweiten Hilfsanziehungsmitteln (90, 91), wobei das erste Hilfsanziehungsmittel (90) ein Paar von ersten gegenüberliegenden Enden aufweist und das zweite Hilfsanziehungsmittel (91) ein Paar von zweiten gegenüberliegenden Enden aufweist, wobei das erste Hilfsanziehungsmittel (90) an der feststehenden Kontaktklemme (51) montiert ist und das zweite Hilfsanziehungsmittel (91) an der bewegbaren Kontaktplatte (60) montiert ist, so dass das Paar von ersten gegenüberliegenden Enden dem Paar von zweiten gegenüberliegenden Enden gegenüberliegt;
    wobei, wenn sich der bewegbare Kontakt (56) in Kontakt mit dem feststehenden Kontakt (52) befindet, um zwischen der bewegbaren Kontaktplatte (60) und der feststehenden Kontaktklemme (51) eine elektrische Verbindung herzustellen, die ersten und zweiten Hilfsanziehungsmittel (90, 91) gegenseitig angezogen werden, da sie durch ein Isoliermittel, das auf einer elektrischen Leiterbahn zwischen der feststehenden Kontaktklemme (51) und der bewegbaren Kontaktplatte (50) bereitgestellt wird, elektrisch voneinander isoliert sind;
    wobei die bewegbare Kontaktplatte (60) ein festes Ende und ein freies Ende, das von dem festen Ende beabstandet ist, aufweist,
    dadurch gekennzeichnet, dass
    der bewegbare Kontakt (56) und das zweite Hilfsanziehungsmittel (91) in einer Richtung von dem festen Ende zu dem freien Ende in dieser Reihenfolge positioniert sind; wobei
    das erste Hilfsanziehungsmittel (90) in einer ersten Region der feststehenden Kontaktklemme (51) positioniert ist, in der elektrischer Strom fließt, wenn der bewegbare Kontakt (56) in Kontakt mit dem feststehenden Kontakt (52) steht, und das zweite Hilfsanziehungsmittel (91) in einer zweiten Region der bewegbaren Kontaktplatte (60) positioniert ist, in der kein elektrischer Strom fließt, wenn sich der bewegbare Kontakt (56) in Kontakt mit dem feststehenden Kontakt (52) befindet, oder
    das erste Hilfsanziehungsmittel (90) in einer ersten Region der feststehenden Kontaktklemme (51) positioniert ist, in der kein elektrischer Strom fließt, wenn der bewegbare Kontakt (56) mit dem feststehenden Kontakt (52) in Kontakt steht, und das zweite Hilfsanziehungsmittel (91) in einer zweiten Region der bewegbaren Kontaktplatte (60) positioniert ist, in der elektrischer Strom fließt, wenn der bewegbare Kontakt (56) in Kontakt mit dem feststehenden Kontakt (52) steht.
  2. Kontaktmechanismus nach Anspruch 1, wobei das Isoliermittel an mindestens einer Stelle bereitgestellt wird
    zwischen der feststehenden Kontaktklemme (51) und dem ersten Hilfsanziehungsmittel (90);
    zwischen der bewegbaren Kontaktplatte (60) und dem zweiten Hilfsanziehungsmittel (91); und
    zwischen den ersten und zweiten Hilfsanziehungsmitteln (90, 91).
  3. Kontaktmechanismus nach Anspruch 1 oder 2, wobei das Isoliermittel einen Luftspalt aufweist, der zwischen den ersten und zweiten Hilfsmitteln (90, 91) definiert ist, wenn sich der bewegbare Kontakt (56) in Kontakt mit dem feststehenden Kontakt (52) befindet.
  4. Kontaktmechanismus nach Anspruch 3, wobei der Luftspalt eine Breite von 0,5 mm oder weniger aufweist.
  5. Kontaktmechanismus nach Anspruch 1, wobei eine Vielzahl von Paaren von ersten und zweiten Hilfsanziehungsmitteln (90, 91) bereitgestellt wird.
  6. Kontaktmechanismus nach Anspruch 1, wobei die ersten und zweiten Hilfsanziehungsmittel (90, 91) die gleiche äußere Konfiguration aufweisen.
  7. Kontaktmechanismus nach Anspruch 1, wobei die ersten und zweiten Hilfsanziehungsmittel (90, 91) unterschiedliche äußere Konfigurationen aufweisen.
  8. Elektromagnetisches Relais, umfassend den Kontaktmechanismus nach einem der Ansprüche 1 bis 7.
EP14822761.4A 2013-07-12 2014-06-18 Kontaktmechanismus Active EP3021341B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013146886A JP5720729B2 (ja) 2013-07-12 2013-07-12 接点機構部
PCT/JP2014/066177 WO2015005082A1 (ja) 2013-07-12 2014-06-18 接点機構部

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JP6471678B2 (ja) 2015-10-29 2019-02-20 オムロン株式会社 接触片ユニット及びリレー
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DK3321947T3 (da) 2016-11-15 2020-02-03 Kamstrup As Manipulationssikker bistabilt relæ til højspændinger
JP6376231B1 (ja) * 2017-02-28 2018-08-22 オムロン株式会社 電磁継電器およびスマートメータ
JP6857092B2 (ja) * 2017-06-28 2021-04-14 富士通コンポーネント株式会社 電磁継電器
JP6922534B2 (ja) * 2017-08-04 2021-08-18 オムロン株式会社 電磁継電器
CN110164719B (zh) * 2019-06-04 2020-05-19 珠海格力电器股份有限公司 开关器件、防止开关器件中触头粘连的方法及设备
CN112863944B (zh) * 2021-02-07 2021-09-21 三友联众集团股份有限公司 一种电磁感应抗冲击继电器

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JPH0419937A (ja) * 1990-05-15 1992-01-23 Matsushita Electric Works Ltd リレーの接点装置
JPH06103878A (ja) * 1992-09-22 1994-04-15 Matsushita Electric Works Ltd 接点開閉装置
JP3791215B2 (ja) * 1998-11-25 2006-06-28 松下電工株式会社 リレー
DE10162585C1 (de) 2001-12-19 2003-04-24 Gruner Ag Prellreduziertes Relais

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BR112015004481A2 (pt) 2017-07-04
EP3021341A1 (de) 2016-05-18
MX348124B (es) 2017-05-26
CN204632680U (zh) 2015-09-09
MX2015003165A (es) 2015-07-14
WO2015005082A1 (ja) 2015-01-15
JP2015018767A (ja) 2015-01-29
EP3021341A4 (de) 2017-05-03
RU2015107309A (ru) 2017-08-17
JP5720729B2 (ja) 2015-05-20

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