EP3282520B1 - Hilfskontaktanordnung - Google Patents

Hilfskontaktanordnung Download PDF

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Publication number
EP3282520B1
EP3282520B1 EP17001338.7A EP17001338A EP3282520B1 EP 3282520 B1 EP3282520 B1 EP 3282520B1 EP 17001338 A EP17001338 A EP 17001338A EP 3282520 B1 EP3282520 B1 EP 3282520B1
Authority
EP
European Patent Office
Prior art keywords
contact
fixed
contacts
assembly
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
EP17001338.7A
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English (en)
French (fr)
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EP3282520A1 (de
Inventor
Domenico Bosatelli
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.)
Gewiss SpA
Original Assignee
Gewiss SpA
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Filing date
Publication date
Application filed by Gewiss SpA filed Critical Gewiss SpA
Publication of EP3282520A1 publication Critical patent/EP3282520A1/de
Application granted granted Critical
Publication of EP3282520B1 publication Critical patent/EP3282520B1/de
Active legal-status Critical Current
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R29/00—Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits, e.g. for voltage selection, for series-parallel selection, programmable connectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • H01H50/545—Self-contained, easily replaceable microswitches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5855—Electric connections to or between contacts; Terminals characterised by the use of a wire clamping screw or nut
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H11/0012—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for converting normally open to normally closed switches and vice versa
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/2425—Structural association with built-in components
    • H01R9/2433—Structural association with built-in components with built-in switch
    • 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
    • H01H1/20—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H11/0031—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different types or orientation of connections to contacts
    • H01H2011/0037—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different types or orientation of connections to contacts with removable or replaceable terminal blocks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/701—Structural association with built-in electrical component with built-in switch the switch being actuated by an accessory, e.g. cover, locking member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34—Conductive members located under head of screw

Definitions

  • the present invention relates to an auxiliary contact assembly.
  • the present invention relates in particular to an auxiliary contact assembly which, when connected to a rotary disconnector or switch, allows to connect auxiliary contacts that have the purpose of signaling a given state of the system.
  • This state might be in the two ON or OFF situations which, in the auxiliary contact assembly according to the invention, correspond respectively to the closed or open state of the contacts.
  • auxiliary contacts are generally constituted by a casing adapted to contain fixed terminals on which movable contacts, moved by a slider that is connected directly to the disconnector or switch, close or open.
  • the position of the contacts with respect to the rotary disconnector/switch can be normally open, in which the movable contacts and the corresponding fixed contacts are at a certain distance, or normally closed, in which the movable contacts and the corresponding fixed contacts are in contact and close a circuit.
  • the movable contacts are mounted on a slider or other movable member and the configuration of the apparatus, with normally open or normally closed contacts, is provided by using adapted fixed and movable contacts for each configuration.
  • EP0393597 discloses a contact device including a housing, a fixed contact, and a moving contact attached to a support frame, the support frame and moving contact being movable within the housing perpendicular to the fixed contact.
  • a stopping arm projects from the support frame to restrict movement of the support frame within the housing.
  • US3892934 discloses an auxiliary contact interlock for use with an electromagnetic contactor having an operating arm, the interlock has stationary and movable contacts within a housing.
  • the movable contacts are mounted on a movable contact carrier, each movable contact has a contact button and an adjacent flexible contact biased toward the corresponding stationary contact and engaging the same before or after the contact buttons when the movable contact carrier is moved in close proximity to or from the closed position with the stationary contact.
  • US6483049 discloses a contact assembly having a plurality of pairs of spaced apart fixed contacts supported in an electrically insulating body, an actuator displaceable relative to the body between first and second positions, and a plurality of movable contacts mounted on the actuator.
  • Each movable contact is positioned on the actuator so as to interconnect the contacts of one of the pairs of fixed contacts only when the actuator is in one of the first and second positions.
  • Each fixed contact has two limbs defining an L-shape, one limb defining a single leg which extends through an aperture formed in a partition defined by the body and the other limb extending to one side of the leg to define a head supporting a terminal for gripping a wire.
  • Each movable contact is displaceable into contact with the leg of each of the respective pairs of fixed contacts on the side of the leg from which the head extends and on the side of the partition remote from the head.
  • US4550232 discloses an electric switching device of the type having a contact system that includes two stationary contact bars and movable contact bridges for interconnecting the bars.
  • a control member is provided in the form of a shiftable slide having insulating projections which in one end position of the slide are displaced between one bridge and a contact bar while the other projection is out of the range of movement of the bridges, and in the other end position the other insulating projection interrupts the contact between the other bridge and the assigned contact bar.
  • US3253092 discloses a double pole switch with reversible contact structure designed to positively make and break electrical circuits during repeated opening and closings of the contacts over long operating periods.
  • the normal operative position of the movable contacts elements of the unit may be reversed to convert the contact and the circuits controlled thereby from normally open to normally closed and vice versa.
  • US6114639 discloses a configurable switch having a base and interchangeable stationary contacts positioned in adjustable locations with respect to the base.
  • a plunger is slidably mounted with respect to the base so that the plunger moves between a first position and a second position.
  • One or more movable contacts are mounted in a normally open position or a normally closed position. In the first position or the second position, the movable contacts make contact and/or break contact with the stationary contacts depending upon the respective arrangements of the stationary contacts and the movable contacts.
  • the configuration of a four-circuit switch can be altered with a minimum of different components to be, for example, a four normally closed circuit configuration, three normally closed and one normally open circuit configuration, two normally closed and two normally open circuit configuration, etc., with a minimum of expense or retooling.
  • US2010224467A1 discloses an electrical circuit making and breaking switch including a housing and a first electrical contact located in the housing.
  • a block mechanism is located in the housing and includes a second electrical contact and a stopper disposed in mechanical communication with the second electrical contact.
  • the stopper is positionable in the block mechanism, wherein a change in the position in the stopper results in a change in a contact position of the second electrical contact relative to the block mechanism.
  • the switch has a lateral block mechanism including two carrier assemblies and a connecting piece located between the two carrier assembles and secured thereto. An electrical contact is located at one of the two carrier assemblies.
  • the aim of the present invention is to provide an auxiliary contact assembly that can be manufactured with a reduced number of different components with respect to apparatuses of the known type.
  • an object of the invention is to provide an auxiliary contact assembly that does not require distinct components to provide different configurations, i.e., allows to use the same components for any version of the product.
  • Another object of the present invention is to provide an assembly which, by virtue of its particular constructive characteristics, is capable of giving the greatest assurances of reliability and safety in use.
  • the auxiliary contact assembly generally designated by the reference numeral 1, includes a casing 21 formed by a bottom 2 and by a cover 3, which are mutually mechanically joined by means of elastic teeth 4 and by two self-tapping screws 5.
  • the casing 21 contains a plurality of fixed contact units 6, two or four, and a movable slider 7, on which one or two moving contacts 8 are mounted, each being held in position by a respective spring 9.
  • Each moving contact 8 has a pair of moving contact pads 22.
  • Each fixed contact unit 6 includes an electric contact member 10, a screw 11, a movable plate 12 and a fixed contact pad 14 which is fixed to a tab 15.
  • Each fixed contact unit 6 is mounted in an adapted seat 13 formed in the bottom
  • the seat 13 is designed so that it is possible to mount the fixed contact with the fixed contact pad 14 directed downward, as can be seen in Figure 4 , or upward, simply by rotating the fixed contact unit through 180°.
  • the electric contact member 10 is obtained from a metallic lamina that is appropriately blanked, bent and perforated, so that the part adapted to contain the plate 12 and the screw 11 is symmetrical and can allow to mount them both on the side of the tab 15 with the contact pad and on the opposite side.
  • the electric contact member 10 is formed by two perforated parallel sides 101 and 102 joined by a perpendicular side 103.
  • the tab 15 is provided by blanking and bending a part of the perpendicular side 103.
  • the moving contacts 8 also can be mounted so that the moving contact pads 22 are directed upward or downward by rotating the moving contacts 8 through 180° in the slider 7.
  • both the moving contact pads 22 of the fixed contacts 6 and the moving contact pads 22 of the moving contacts 8 allows to provide the desired configuration: normally open contacts NA, normally closed contacts NC, or one normally open contact and one normally closed contact NA+NC.
  • the auxiliary contact assembly 1 thus provided can be coupled to an electrical device, such as a switch or disconnector, not visible in the figures, by means of two upper dovetail engagement members 16 and a lower engagement member 17.
  • the assembly 1 is fastened to the electrical device by two lower contrast members 19 and by an upper tooth 18 which is also used for releasing the assembly from the electrical device.
  • the movement of the slider 7 is achieved when coupling the slider 7 to the movable slider of the disconnector, which is not visible in the figures.
  • This coupling is provided by a protrusion 20 that is formed on the slider 7; the protrusion 20 engages in an adapted window provided in the contact holder of the disconnector, which is not visible in the figures.
  • the auxiliary contact assembly according to the present invention can be converted from a device with one or two normally open contacts to a device with one or two normally closed contacts or to a device with one normally open contact and one normally closed contact simply by swapping the position of the moving contacts 8 on the slider 7 by rotating the electrical contact member 10 through 180°.
  • the auxiliary contact assembly becomes a device with a single normally open contact, as shown in Figure 8 .
  • each fixed contact 6 is mounted so that the respective fixed contact pad 14 is directed downward.
  • This is achieved simply by arranging each fixed contact 6 in the respective seat 13 with the appropriate orientation, i.e., with the tab 15, which supports the fixed contact pad 14, upward, as in the case of Figure 8.
  • Figure 7 shows the closed contact position.
  • Figure 8 shows the mounting position of the upper moving contact 8, with the moving contact pads 22 directed upward, which provides a second normally open contact.
  • Figure 7 shows the position that corresponds to both moving contacts 8 closed, i.e., in contact with the respective fixed contacts 6.
  • Figures 9-12 show further examples of combinations of the arrangements of the fixed and moving contacts in order to obtain a structure having the required characteristics, in any case always using the same components, regardless of the desired combination.
  • the fixed contact unit 10 is obtained from a metallic blade that is blanked and bent so that the portions adapted to contain the plate 12 and the screw 11 is symmetrical and can allow the mounting thereof both on the side of the tab 15 with the contact pad and on the opposite side.
  • the screw 11 can be inserted both in the hole provided on the side of the tab 15 and in the hole of the opposite side, determining the orientation of the fixed contact pad 14.
  • auxiliary contact assembly particularly usable with a switch or disconnector, which is provided by means of the same components for all versions, with normally open or normally closed contacts or with both normally open and normally closed contacts.
  • auxiliary contact assembly appropriately connected to a rotary disconnector/switch, allows to connect auxiliary contacts that have the purpose of signaling a given state of the system. This state might be in the two ON or OFF situations which, in the auxiliary contact assembly according to the invention, can correspond to the respective closed or open state of the contacts.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Breakers (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Finger-Pressure Massage (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Claims (5)

  1. Eine Hilfskontaktanordnung, die Folgendes umfasst: ein Gehäuse (21), das mit einer Vielzahl von Sitzen ausgestattet ist, wobei jeder der Sitze ausgebildet ist, um eine Festkontakteinheit (6) aufzunehmen, wobei die Festkontakteinheit (6) mindestens eine Festkontaktstelle (14) hat, mindestens ein bewegliches Glied (7), das ausgebildet ist, um einen oder mehrere bewegliche Kontakte (8) zu tragen, wobei jeder der beweglichen Kontakte (8) ein Paar beweglicher Kontaktstellen (22) trägt, wobei das bewegliche Glied (7) zwischen zwei Positionen, einer ersten Kontaktposition und einer zweiten Kontaktposition, beweglich ist, wobei die Festkontakteinheit (6) in einem entsprechenden Sitz montiert ist, wobei die Festkontaktstelle (14) in verschiedene Positionen ausgerichtet werden kann, wobei der bewegliche Kontakt (8) in dem beweglichen Glied (7) montiert ist, wobei die beweglichen Kontaktstellen (22) in verschiedene Positionen ausgerichtet werden können, wobei das bewegliche Glied aus einem Schieber (7) besteht, der verschiebbar in dem Gehäuse (21) montiert ist, wobei die Festkontakteinheit (6) ein elektrisches Kontaktglied (10), eine Schraube (11), eine bewegliche Platte (12) und die Festkontaktstelle (14) umfasst, die an einem Vorsprung (15) befestigt ist, wobei das elektrische Kontaktglied (10) eine metallische Schaufel mit Abschnitten ist, die ausgebildet sind, um die bewegliche Platte (12) und die Schraube (11) aufzunehmen, wobei die Abschnitte symmetrisch sind und die Montage der Schraube (11) und der beweglichen Platte (12) in gegenüberliegenden Positionen mit Bezug auf die feste Kontaktstelle (14) ermöglichen, wobei das elektrische Kontaktglied (10) zwei parallele perforierte Seiten (101, 102) hat, die durch eine senkrechte Seite (103) verbunden sind, wobei die Schraube (11) mit einer der parallelen perforierten Seiten (101, 102) verbunden ist, wobei die Anordnung dadurch gekennzeichnet ist, dass der Vorsprung (15) durch einen Abschnitt der senkrechten Seite (103) gebildet ist.
  2. Die Hilfskontaktanordnung gemäß Anspruch 1, dadurch gekennzeichnet, dass jeder der beweglichen Kontakte (8) durch eine dazugehörige Feder (9) in Position gehalten wird.
  3. Die Hilfskontaktanordnung gemäß Anspruch 1, dadurch gekennzeichnet, dass das elektrische Kontaktglied (10) eine metallische Schaufel ist, die vorbearbeitet, gebogen und perforiert ist.
  4. Die Hilfskontaktanordnung gemäß Anspruch 1, dadurch gekennzeichnet, dass das Gehäuse (21) zwei obere Schwalbenschwanz-Eingriffsglieder (16) und ein unteres Eingriffsglied (17) umfasst, die ausgebildet sind, um die Anordnung mit einer elektrischen Vorrichtung, wie zum Beispiel einem Schalter oder Trennschalter, zu koppeln, wobei die Anordnung an der elektrischen Vorrichtung durch einen oberen Zahn (18), der an dem Gehäuse (21) geformt ist, und zwei untere Kontrastglieder (19) befestigt ist, die an dem Gehäuse (21) geformt sind.
  5. Die Hilfskontaktanordnung gemäß Anspruch 4, dadurch gekennzeichnet, dass der Schieber (7) einen Vorsprung (20) umfasst, der von dem Gehäuse (21) vorsteht und ausgebildet ist, um in ein bewegliches Glied der elektrischen Vorrichtung einzugreifen.
EP17001338.7A 2016-08-09 2017-08-04 Hilfskontaktanordnung Active EP3282520B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102016000084041A IT201600084041A1 (it) 2016-08-09 2016-08-09 Struttura di contatto ausiliario

Publications (2)

Publication Number Publication Date
EP3282520A1 EP3282520A1 (de) 2018-02-14
EP3282520B1 true EP3282520B1 (de) 2022-03-02

Family

ID=57906889

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17001338.7A Active EP3282520B1 (de) 2016-08-09 2017-08-04 Hilfskontaktanordnung

Country Status (4)

Country Link
EP (1) EP3282520B1 (de)
CN (1) CN107706054B (de)
ES (1) ES2912919T3 (de)
IT (1) IT201600084041A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114006189B (zh) * 2021-09-13 2024-09-24 大唐水电科学技术研究院有限公司 一种节省拆线式试验用接线连接器

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253092A (en) * 1963-11-04 1966-05-24 Clark Controller Co Double pole switch with reversible contact structure
US3534195A (en) * 1969-01-27 1970-10-13 Gen Electric Circuit breaker with novel terminal strap
US3892934A (en) * 1974-03-14 1975-07-01 Westinghouse Electric Corp Auxiliary contact interlock for preventing electrical discontinuity between main bridging contact and fixed contacts
DE3273685D1 (en) * 1982-07-16 1986-11-13 Square D Starkstrom Gmbh Electric commutation device, in particular a contactor
JPH02137737U (de) * 1989-04-20 1990-11-16
US6114639A (en) * 1998-06-29 2000-09-05 Honeywell International Inc. Configurable switch
GB0006482D0 (en) * 2000-03-20 2000-05-10 Eja Ltd Contact assembly
DE102005043456A1 (de) * 2005-09-13 2007-03-22 Abb Patent Gmbh Anschlussklemme für einen elektrischen Schalter
US20100224467A1 (en) * 2009-03-03 2010-09-09 General Electric Company Field interchangeable auxilliary switch
ATE545175T1 (de) * 2009-10-26 2012-02-15 Schneider Electric Ind Sas Anordnung zur mehrfachverbindung bei einer elektrischen vorrichtung
CN203225219U (zh) * 2013-05-03 2013-10-02 浙江天正电气股份有限公司 侧挂辅助触头组

Also Published As

Publication number Publication date
EP3282520A1 (de) 2018-02-14
CN107706054A (zh) 2018-02-16
CN107706054B (zh) 2021-03-30
ES2912919T3 (es) 2022-05-30
IT201600084041A1 (it) 2018-02-09

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