WO2008095452A1 - Appareil de commutation électromécanique et utilisation d'une couche intermédiaire dans un appareil de commutation électromécanique - Google Patents

Appareil de commutation électromécanique et utilisation d'une couche intermédiaire dans un appareil de commutation électromécanique Download PDF

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Publication number
WO2008095452A1
WO2008095452A1 PCT/DE2007/000207 DE2007000207W WO2008095452A1 WO 2008095452 A1 WO2008095452 A1 WO 2008095452A1 DE 2007000207 W DE2007000207 W DE 2007000207W WO 2008095452 A1 WO2008095452 A1 WO 2008095452A1
Authority
WO
WIPO (PCT)
Prior art keywords
switching device
contact
electromechanical switching
contact slide
slide
Prior art date
Application number
PCT/DE2007/000207
Other languages
German (de)
English (en)
Inventor
Christian Gogeissl
Martin Pfeifer
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to DE112007003445T priority Critical patent/DE112007003445A5/de
Priority to PCT/DE2007/000207 priority patent/WO2008095452A1/fr
Publication of WO2008095452A1 publication Critical patent/WO2008095452A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H81/00—Protective switches in which contacts are normally closed but are repeatedly opened and reclosed as long as a condition causing excess current persists, e.g. for current limiting
    • H01H81/04—Protective switches in which contacts are normally closed but are repeatedly opened and reclosed as long as a condition causing excess current persists, e.g. for current limiting electromagnetically operated

Definitions

  • Electromechanical switching device and use of an intermediate layer in an electromechanical switching device are Electromechanical switching device and use of an intermediate layer in an electromechanical switching device
  • the subject of the invention relates to an electromechanical switching device according to the preamble of claim 1 and use of an intermediate layer in an electromechanical switching device.
  • An electromechanical switching device has at least one current input and a corresponding current output and is designed to electrically connect or disconnect the at least one current input to the corresponding current output depending on its switching state.
  • the commercially available electromechanical switching devices have for this purpose at least one movable contact and at least one contact slide, wherein the contact slide is formed by its movement to move the at least one movable contact from a first position to a second position so that the switching state of the electromechanical ' switching device changed becomes.
  • the object underlying the invention is therefore to provide an electromechanical switching device with a contact slide made of a lightweight material.
  • a switching device according to the independent claim 1, namely such that the contact slide comprises thermoplastic material, and that the switching device has an intermediate layer, which is formed, the Ver ⁇ Sticking the contact slide during the movement of the contact slide to prevent.
  • thermoplastic material generally has a melting point or point of transition to the non-solid state that is below the temperature of the movable contacts or contact bridge. Consequently, it can happen that the contact slide sticks to the contact piece or to the contact bridge. For this reason, the on-state values for electromechanical switchgear with a contact slide made of thermoplastic in short-circuit tests are higher than the actual achievable values. It is also possible that the bonding reduces the service life of the electromechanical switching device.
  • an electromechanical switching device having at least one contact slide, which includes thermoplastic material, equipped with an intermediate layer which is designed to prevent the adhesion of the contact slide during the movement of the contact slide.
  • the at least one movable contact is attached to a contact bridge and the contact slide is designed to bring about the movement of the at least one movable contact by moving the contact bridge, it may happen that the contact slide is glued to the contact bridge.
  • the invention is useful because the consequences of the bond to the contact bridge can be avoided, especially when the intermediate layer between the contact slide and the contact bridge is arranged.
  • the intermediate layer can be fastened to the contact bridge or to the contact slide, preferably by means of an interference fit. This effort can be avoided, which allows a more cost-effective production.
  • the intermediate layer can be connected to the contact slide by means of a two- or multi-contact injection molding method.
  • the contact slide consists of a thermoplastic material or of several thermoplastic materials.
  • the contact slide can be made inexpensively.
  • the intermediate layer is advantageously made of metal, preferably of a metal or of an alloy, or of thermosetting plastic or of a thermoplastic superior to the thermoplastic of the contact slide or melting at a higher temperature.
  • FIG. 2 shows a contact slide, a contact bridge with two movable contacts and an intermediate layer between the contact bridge and the contact slide, and
  • FIG 3 shows a section from the parts shown in FIG 2 in the direction III-III.
  • FIG 1 shows a simplified representation of a known from the prior art electromechanical switching device, which is shown in FIG 1 as a circuit breaker 10.
  • the power switch has a current input Al and a corresponding current output Tl.
  • the common electromechanical switching devices usually have a current input current output pair for each phase of the three-phase current. For the sake of simplicity, only one pair is shown in FIG. 1, but the person skilled in the art understands that an electromechanical switching device is basically designed to switch two or three current phases.
  • the circuit breaker 10 is designed to electrically conductively connect or disconnect the current input A1 (or the current inputs A1, A2, A3) from its switching state to the corresponding current output T1 (or to the corresponding current outputs T1, T2, T3) ,
  • the power switch 10 as possible for each current phase to be switched at least one movable contact
  • the contact slide 23 is formed by its movement to move the at least one movable contact 13, 15 from a first position to a second position so that the switching state of the circuit breaker 10 is changed.
  • the contact slide 23 is formed by its movement to move the at least one movable contact 13, 15 from a first position to a second position so that the switching state of the circuit breaker 10 is changed.
  • the movable contacts 13, 15 are guided to the corresponding fixed contacts 12, 16 and discharged from them. Since the fixed contact 12 is electrically conductively connected to the input Al and the fixed contact 16 is electrically connected to the output Tl, a changed position of the movable contacts 13, 16 causes the output Tl contacted with the input Al electrically conductive or separated from the input Al.
  • a circuit breaker 10 typically has one or more triggers.
  • a short-circuit or N-trigger 20 is shown, which generally has a coil 21 and detected in at least one phase line 18, 19 continuous current and generates a trigger mechanism 22, a force F, which acts through a connecting mechanism 26 on the contact slide 23 to open the contacts.
  • a circuit breaker 10 may also include an overload release configured to generate a force at a current that is too high for the power switch 10 that acts directly or also through a link mechanism on the contact slide 23 to open the contacts.
  • switch lock In a circuit breaker, the force F as well as the tripping force of an overload release on the contact slide 23 normally have an effect via a so-called switch lock, which is composed of relatively complex mechanical parts.
  • a switch lock can be used to ensure that the contacts remain disconnected in the event of a short circuit or overload because the contact slide is only released after a reset.
  • the contact slide 123 shown in FIG. 2, which, according to the invention, is to replace the previous contact slide 23, contains thermoplastic material.
  • the electromechanical switching device according to the invention has an intermediate layer 130, which is designed to prevent the gluing of the contact slide 123 during the movement of the contact slide 123.
  • the contact slide 123 is preferably made of a thermoplastic material, preferably of duroplastic, or of a plurality of thermoplastic materials. Then it is advantageous if the intermediate layer 130 consists of metal, preferably of a metal or of an alloy.
  • the contact slide 123 can be designed to bring about the movement of at least one of the movable contacts 13, 15 by moving the contact bridge 14. Then it is advantageous if the intermediate layer 130 is arranged between the contact slide 123 and the contact bridge 14. The intermediate layer 130 can be attached either to the contact bridge 14 or to the contact slide 123.
  • an intermediate layer 130 is used, which prevents direct contact of the hot contact bridge 14 with the contact slide 123 made of thermoplastic material.
  • An intermediate layer 130 may be made of metal, thermoset or a thermoplastic superior to the thermoplastic of the contact slide.
  • a higher-grade thermoplastic has a higher melting point or changes to a non-solid state at a higher temperature.
  • a metallic interlayer 130 is press-fitted to the contact slide 123, while for an interlayer 130 of thermosetting or higher value thermoplastic, alternatively to use, a two-component injection method may be advantageously employed.
  • the thermoset insert prevents sticking of the contact bridge 130, but on the other hand allows the filigree construction of a thermoplastic part.
  • Adhesion of the metallic intermediate layer 130 with the contact slide 123 usually occurs, but is in contrast to the direct adhesion of the contact slide 123 to the contact bridge 14 without negative effects on the function of the electromechanical switching device 10th
  • an electromechanical switching device may be a limiter.
  • a limiter usually has neither an N-trigger nor a switch lock, but only an overload release, so that it is ready for use again after disconnecting the contacts without reset.
  • the electromechanical switching device can also be a device that includes a circuit breaker or a limiter together with other functional units.
  • a device may be a combined circuit breaker or a compact feeder, which in addition to the functions of a circuit breaker and that of a contactor and possibly also has an overload relay.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Slide Switches (AREA)

Abstract

Un appareil de commutation électromécanique (10) présentant au moins une entrée de courant (AI) et une sortie de courant correspondante (TI) est configuré de manière à se lier ou à se séparer électriquement, à partir de son état de commutation dépendant d'au moins une entrée de courant (AI), à une sortie de courant correspondante (TI). L'appareil de commutation électromécanique présente au moins un contact mobile (13, 15) et au moins un curseur de contact (123), le curseur de contact (123) étant configuré de façon que, par son déplacement, au moins un contact mobile (13, 15) est déplacé d'une première position vers une seconde position, de façon que l'état de commutation de l'appareil de commutation électromécanique (10) soit modifié, le curseur de contact (123) comprenant un matériau thermoplastique. L'appareil de commutation (10) présente en outre une couche intermédiaire (130) qui est configurée de manière à empêcher le collage du curseur de contact (123) lors du déplacement de ce dernier. Enfin, l'invention concerne l'utilisation d'une couche intermédiaire.
PCT/DE2007/000207 2007-02-05 2007-02-05 Appareil de commutation électromécanique et utilisation d'une couche intermédiaire dans un appareil de commutation électromécanique WO2008095452A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112007003445T DE112007003445A5 (de) 2007-02-05 2007-02-05 Elektromechanisches Schaltgerät und Verwendung einer Zwischenlage in einem elektromechanischen Schaltgerät
PCT/DE2007/000207 WO2008095452A1 (fr) 2007-02-05 2007-02-05 Appareil de commutation électromécanique et utilisation d'une couche intermédiaire dans un appareil de commutation électromécanique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2007/000207 WO2008095452A1 (fr) 2007-02-05 2007-02-05 Appareil de commutation électromécanique et utilisation d'une couche intermédiaire dans un appareil de commutation électromécanique

Publications (1)

Publication Number Publication Date
WO2008095452A1 true WO2008095452A1 (fr) 2008-08-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/000207 WO2008095452A1 (fr) 2007-02-05 2007-02-05 Appareil de commutation électromécanique et utilisation d'une couche intermédiaire dans un appareil de commutation électromécanique

Country Status (2)

Country Link
DE (1) DE112007003445A5 (fr)
WO (1) WO2008095452A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016186974A1 (fr) * 2015-05-18 2016-11-24 Gigavac, Llc Dispositif fusible mécanique
US10388477B2 (en) 2015-05-18 2019-08-20 Gigavac, Llc Contactor device integrating pyrotechnic disconnect features
CN110752117A (zh) * 2018-01-02 2020-02-04 吉加瓦有限责任公司 接触器装置
US11387061B2 (en) 2015-05-18 2022-07-12 Gigavac, Llc Passive triggering mechanisms for use with switching devices incorporating pyrotechnic features
US11443910B2 (en) 2019-09-27 2022-09-13 Gigavac, Llc Contact levitation triggering mechanisms for use with switching devices incorporating pyrotechnic features

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3030702A1 (de) * 1980-08-14 1982-03-11 Brown, Boveri & Cie Ag, 6800 Mannheim Elektromagnetisches schaltschuetz mit einem beweglichen kontaktbrueckentraeger
DD253322A1 (de) * 1986-10-13 1988-01-13 Oppach Schaltelektronik Niederspannungsschaltgeraet, insbesondere schuetz mit doppelunterbrechung und einem gehaeuse aus thermoplast
DE29701312U1 (de) * 1997-01-28 1997-04-10 Klöckner-Moeller GmbH, 53115 Bonn Kontaktbrückenhalterung
DE19602118A1 (de) * 1996-01-22 1997-07-24 Siemens Ag Elektrisches Schaltgerät

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3030702A1 (de) * 1980-08-14 1982-03-11 Brown, Boveri & Cie Ag, 6800 Mannheim Elektromagnetisches schaltschuetz mit einem beweglichen kontaktbrueckentraeger
DD253322A1 (de) * 1986-10-13 1988-01-13 Oppach Schaltelektronik Niederspannungsschaltgeraet, insbesondere schuetz mit doppelunterbrechung und einem gehaeuse aus thermoplast
DE19602118A1 (de) * 1996-01-22 1997-07-24 Siemens Ag Elektrisches Schaltgerät
DE29701312U1 (de) * 1997-01-28 1997-04-10 Klöckner-Moeller GmbH, 53115 Bonn Kontaktbrückenhalterung

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016186974A1 (fr) * 2015-05-18 2016-11-24 Gigavac, Llc Dispositif fusible mécanique
US9887055B2 (en) 2015-05-18 2018-02-06 Gigavac, Llc Mechanical fuse device
CN107787518A (zh) * 2015-05-18 2018-03-09 吉加瓦有限责任公司 机械保险丝装置
US10388477B2 (en) 2015-05-18 2019-08-20 Gigavac, Llc Contactor device integrating pyrotechnic disconnect features
CN107787518B (zh) * 2015-05-18 2020-04-07 吉加瓦有限责任公司 机械保险丝装置
CN111354610A (zh) * 2015-05-18 2020-06-30 吉加瓦有限责任公司 保险丝装置
US11239038B2 (en) 2015-05-18 2022-02-01 Gigavac, Llc Mechanical fuse device
US11387061B2 (en) 2015-05-18 2022-07-12 Gigavac, Llc Passive triggering mechanisms for use with switching devices incorporating pyrotechnic features
CN110752117A (zh) * 2018-01-02 2020-02-04 吉加瓦有限责任公司 接触器装置
CN110752117B (zh) * 2018-01-02 2023-06-20 吉加瓦有限责任公司 接触器装置
US11443910B2 (en) 2019-09-27 2022-09-13 Gigavac, Llc Contact levitation triggering mechanisms for use with switching devices incorporating pyrotechnic features

Also Published As

Publication number Publication date
DE112007003445A5 (de) 2010-01-21

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