EP3044801A1 - Commutateur électrique - Google Patents

Commutateur électrique

Info

Publication number
EP3044801A1
EP3044801A1 EP14780794.5A EP14780794A EP3044801A1 EP 3044801 A1 EP3044801 A1 EP 3044801A1 EP 14780794 A EP14780794 A EP 14780794A EP 3044801 A1 EP3044801 A1 EP 3044801A1
Authority
EP
European Patent Office
Prior art keywords
contact
guide
movable contact
switch
spring housing
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.)
Granted
Application number
EP14780794.5A
Other languages
German (de)
English (en)
Other versions
EP3044801B1 (fr
Inventor
Michael Bartz
Ingolf Reiher
Alexander Golub
Frank Ehrlich
Andre Matthäi
Caroline ORTH
Rico Rademacher
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.)
Siemens AG
Original Assignee
Siemens AG
Siemens Corp
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 AG, Siemens Corp filed Critical Siemens AG
Publication of EP3044801A1 publication Critical patent/EP3044801A1/fr
Application granted granted Critical
Publication of EP3044801B1 publication Critical patent/EP3044801B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2205/00—Movable contacts
    • H01H2205/002—Movable contacts fixed to operating part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2235/00—Springs
    • H01H2235/01—Spiral spring

Definitions

  • the invention relates to an electrical switch having the features according to the preamble of patent claim 1.
  • Such an electrical switch is known from European Patent Application EP 2 270 827 AI.
  • This switch comprises a gas-insulated tube and a contact system arranged in the tube and comprising a fixed and a movable contact.
  • a movable contact actuator which is mechanically and electrically in communication with the movable contact, passed out of the tube through an opening in the tube, and slidable along an actuation direction for opening and closing the contact system.
  • the switch further comprises a contact pressure spring slidable along the direction of actuation, which communicates with the movable contact actuating element and an external drive element and is arranged in a fixed guide part of the switch guiding the movable contact actuating element.
  • the contact pressure spring, the movable contact actuator and the movable contact are moved toward the fixed contact, the contact system is closed, and the contact pressure spring is compressed to provide a contact pressure force.
  • the invention is therefore an object of the invention to provide a switch in which the problem of satisfactory guidance of the movable contact actuating element is achieved structurally simple and inexpensive. This object is achieved by a switch with the features according to claim 1.
  • Advantageous embodiments of the switch according to the invention are specified in sub-claims.
  • the invention provides that the contact pressure spring is arranged in a spring housing which is rigidly connected to the movable contact actuating element and is displaceable relative to the stationary guide member, and externally on the spring housing at least one guide member is firmly attached, which bears against the stationary guide member and causes a guide of the spring housing and the leadership of the movable contact actuating element along the direction of actuation Betä-.
  • the spring housing has a double function: on the one hand it serves to hold the Kunststoffan horrfe- and on the other hand to guide the movable contact actuating element.
  • the leadership of the contact actuating element can be improved by incorporating the spring housing without great effort and constructively in a simple manner.
  • two guide elements - as seen along the actuating direction spaced - are mounted on the spring housing and rest against the guide member.
  • the spring housing it is considered advantageous if this has a cup-shaped housing part and a cover part. In such an embodiment of the spring housing, it is particularly advantageous if at least one of the guide elements on the cup-shaped
  • the external drive element can, for example, project into the spring housing, in particular into the cup-shaped housing part, in order to cooperate with the contact pressure spring.
  • a contact disc is attached or integrally formed and the further guide element is mounted radially on the outside of the contact disc.
  • the contact disk and the further guide element preferably fulfill a dual function, namely a leading function and an electrically conductive function; Accordingly, it is advantageous if the contact disk and the further guide element are electrically conductive and enable a flow of current from the movable contact actuating element through the contact disk and the further guide element to the guide part and vice versa.
  • this is hollow cylindrical or at least has a hollow cylindrical portion.
  • the guide elements or the guide elements attached to the spring housing preferably abut radially on an inner wall of the hollow cylindrical guide part or of the hollow cylindrical section of the guide part.
  • the or the outside of the spring housing mounted guide elements are preferably formed by a guide ring.
  • the one or more further guide elements, which are arranged in the region between the spring housing and the tube are formed by guide rings.
  • the tube has a bearing or a bearing is mounted on the tube which the movable contact actuating element in the region of the exit point of the movable Mixbeturgii- gungselements from the tube along the actuating direction leads.
  • the gas-insulated tube may be, for example, a vacuum tube;
  • the switch is preferably a vacuum switch.
  • Figure 4 shows an embodiment of an inventive
  • FIG. 1 shows an electrical switch 10, which may, for example, be a vacuum switch.
  • the switch 10 has a gas-insulated tube 20, for example in the form of a vacuum tube, in which a contact system 30 with a fixed contact 31 and a relative to the fixed contact 31 movable contact 32 is arranged.
  • a movable contact actuating element 40 is provided, which is in communication with the movable contact 32 and allows movement of the movable contact 32 along the actuating direction P.
  • the movable contact 32 and the movable contact actuating element 40 are formed by separate, interconnected elements; Alternatively, the movable contact 32 and the contact actuating element 40 can also be made in one piece or formed by a single component.
  • the movable contact actuating element 40 extends through an opening 21 in the gas-insulated tube 20 out of these into a stationary guide part 50.
  • the fixed guide member 50 is formed in the embodiment of Figure 1 by a hollow cylindrical body or by a pipe.
  • the movable contact actuating element 40 is connected to a spring housing 60, which may be designed in one or more parts.
  • the spring housing 60 is in two parts and is characterized by a cup-shaped housing part 70 and a cover part 80 located on or in the illustration according to FIG. 1 under the cup-shaped housing part 70.
  • the cover part 80 is provided with an opening 81 through which an external drive element 90 projects into the interior of the spring housing 60.
  • the external drive element 90 is connected to a spring end 101 of a contact pressure spring 100 located inside the spring housing 60, whose spring end 102 remote from the external drive element 90 is supported on the pot base of the cup-shaped housing part 70.
  • the movable contact actuating element 40 and, associated therewith, the movable contact 32 can be moved along the actuating direction P, so that the contact system 30 can be opened or closed.
  • the contact pressure spring 100 ensures that when the contact system 30 is closed a sufficient pressure force between the fixed contact 31 and the movable contact 32 is ensured; In addition, the contact pressure spring 100 ensures that when opening the contact system 30, a so-called separation shock is generated with which a possible welding of the contact system 30 is released or broken.
  • a shift rod can be connected to the external drive element 90, for example via a rotary joint with which the drive element 90 can be moved to switch the switch 10.
  • a flange portion 71 is integrally formed on the cup-shaped housing part 70, which extends radially outward in the direction of the inner wall 51 of the guide member 50.
  • a guide element 110 in the form of a guide ring is provided between the flange section 71 and the inner wall 51 of the guide part 50; the guide member 110 is located in a radially outer annular guide groove or annular groove 71 a of the flange portion 71 and is with this in case of movement of the Spring housing 60 along the operating direction P relative to the stationary guide member 50 is moved.
  • the function of the guide element 110 is to ensure a guidance of the movable contact actuating element 40 and thus a guidance of the movable contact 32 during the movement along the actuating direction P.
  • a further guide element 200 is provided in the exemplary embodiment according to FIG. 1, which may also be a guide ring.
  • the further guide element 200 is located radially outward in an annular groove 210 a of the contact disc 210, which is either integrally formed on the movable contact actuating element 40 or radially outwardly mounted on the movable contact actuating element 40.
  • the further guide element 200, together with the contact disk 210, thus ensures a further guidance of the contact actuating element 40 during the movement along the actuating direction P within the guide part 50.
  • the further guide element 200 and the contact disk 210 can have an electrical function if they are designed to be electrically low-resistance or current-conducting - which is considered to be advantageous here. If the further guide element 200 and the contact disk 210 are electrically conductive, then a current flow I can take place along the double arrow between the guide part 50 and the contact actuating element 40, which advantageously prevents current flowing through the spring housing 60 , In other words, the current flowing through the contact system 30 is thus conducted past the further guide element 200 and the contact disk 210 past the spring housing 60 and the contact pressure spring 100 located there.
  • a guide of the contact actuating element 40 within the guide part 50 is guided by the guide element 110 and the further guide element. ment 200 guaranteed.
  • a bearing 300 is additionally provided in the region of the opening 21 in the exemplary embodiment according to FIG.
  • three guide elements are provided in the exemplary embodiment according to FIG. 1, namely the guide element 110 in the region of the spring housing 60, the further guide element 200 in the area between the spring housing 60 and the opening 21, and the bearing 300, which is in the area of the spring housing Opening 21 is attached to the tube 20 and formed in this.
  • FIG. 2 shows a further exemplary embodiment of a switch 10, in which a guide element 110 is attached to a two-part spring housing 60.
  • the guide element 110 is not attached to the pot-shaped housing part 70 or the flange section 71 of the pot-shaped housing 70, but in the region of the cover part 80.
  • the guide element 110 In order to enable or simplify the attachment of the guide element 110 to the cover part 80, it is designed to be larger in the radial direction or perpendicular to the actuation direction P than the cover part 80 according to FIG. 1.
  • the switch 10 of Figure 2 is equipped with a further guide member 200 in the region between the spring housing 60 and the opening 21 in the vacuum tube 20 and with a bearing 300 in the region of the opening 21;
  • a further guide member 200 in the region between the spring housing 60 and the opening 21 in the vacuum tube 20 and with a bearing 300 in the region of the opening 21;
  • the above explanations regarding the current-carrying properties of the guide element 200 and the contact disk 210 also apply correspondingly in the embodiment according to FIG. 2, since the guide element 200 and the contact disk 210 are preferably also electrically conductive in the exemplary embodiment according to FIG.
  • FIG 3 shows an exemplary embodiment of a switch 10, in which not only a guide element 110 is arranged on a two-part spring housing 60, but two guide elements 110 and 110a.
  • the two guide elements 110 and 110a are arranged at a distance from one another viewed along the actuating direction P, so that the two guide elements 110 and 110a alone can provide a guidance of the contact actuating element 40 for movement along the direction of movement P.
  • the guide element 110 is preferably attached to a flange section 71 of the pot-shaped housing part 70, as has already been explained in connection with FIG. 1; and the guide element 110a is mounted in the region of the cover part 80, as explained above in connection with FIG.
  • FIG. 4 shows an exemplary embodiment of a switch 10 in which two guide elements 110 and 110a are attached to the spring housing 60, as is also the case in the exemplary embodiment according to FIG.
  • the further guide element 200 and the contact disc 210 in contrast to the embodiment according to FIG. play according to Figure 4, the further guide element 200 and the contact disc 210, so that the guide of the contact actuating element 40 based solely on the two guide elements 110 and 110a and the bearing 300.
  • Housing part 70 and the flange 71 perform very solid or thick walls to ensure the lowest possible electrical resistance between the guide member 50 and the contact actuator 40.

Landscapes

  • Push-Button Switches (AREA)

Abstract

L'invention concerne un commutateur électrique (10) comportant un tube à isolation gazeuse (20), un système de contacts (30) qui est disposé dans le tube (20) et qui comporte un contact fixe et un contact mobile (31, 32), un élément d'actionnement de contact mobile (40) qui est relié mécaniquement et électriquement au contact mobile (32), qui sort du tube par un orifice (21) ménagé dans celui-ci et qui est apte à coulisser dans une direction d'actionnement (P) dans le but d'ouvrir et de fermer le système de contacts (30), et un ressort de pression de contact (100) qui est apte à coulisser dans la direction d'actionnement (P) et qui est relié à l'élément d'actionnement de contact mobile (40), et un élément de commande externe (90) et qui est disposé dans une partie de guidage fixe (50) du commutateur (10) qui guide l'élément d'actionnement de contact mobile (40). Dans le cas où l'élément de commande externe (90) est déplacé dans la direction d'actionnement (P) en direction du contact fixe (31), le ressort de pression de contact (100), l'élément d'actionnement de contact mobile (40) et le contact mobile (32) sont déplacés en direction du contact fixe (31), le système de contact (30) est fermé et le ressort de pression de contact (100) est comprimé avec génération d'une force de pression de contact. Selon l'invention, le ressort de pression de contact (100) est disposé dans un boîtier de ressort (60) qui est relié rigidement à l'élément d'actionnement de contact mobile (40) et qui est apte à coulisser par rapport à la partie de guidage fixe (50), et au moins un élément de guidage (110) est monté de manière fixe à l'extérieur sur le boîtier de ressort (60), lequel élément de guidage vient s'appuyer sur la partie de guidage fixe (50) et réaliser le guidage du boîtier de ressort (60) et le guidage de l'élément d'actionnement de contact mobile (40) dans la direction d'actionnement (P).
EP14780794.5A 2013-10-29 2014-09-24 Commutateur électrique Active EP3044801B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310221910 DE102013221910A1 (de) 2013-10-29 2013-10-29 Elektrischer Schalter
PCT/EP2014/070311 WO2015062786A1 (fr) 2013-10-29 2014-09-24 Commutateur électrique

Publications (2)

Publication Number Publication Date
EP3044801A1 true EP3044801A1 (fr) 2016-07-20
EP3044801B1 EP3044801B1 (fr) 2017-08-16

Family

ID=51660451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14780794.5A Active EP3044801B1 (fr) 2013-10-29 2014-09-24 Commutateur électrique

Country Status (6)

Country Link
US (1) US9659729B2 (fr)
EP (1) EP3044801B1 (fr)
CN (1) CN105706205B (fr)
DE (1) DE102013221910A1 (fr)
DK (1) DK3044801T3 (fr)
WO (1) WO2015062786A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016002261A1 (de) * 2016-02-25 2017-08-31 Siemens Aktiengesellschaft Anordnung und Verfahren zum Führen einer Schaltstange eines Hochspannungs-Leistungsschalters
DE102017212066A1 (de) 2017-07-14 2019-01-17 Siemens Aktiengesellschaft Kontaktanpressanordnung
CN110718415B (zh) * 2018-07-12 2021-11-16 平高集团有限公司 一种真空断路器
CN110718414B (zh) * 2018-07-12 2021-11-16 平高集团有限公司 真空断路器
DE102019209871A1 (de) 2019-07-04 2021-01-07 Siemens Aktiengesellschaft Schalteinrichtung
DE102019216663B4 (de) * 2019-10-29 2023-02-02 Siemens Aktiengesellschaft Vakuumschaltvorrichtung für eine Schaltung mit Haupt- und Nebenstrompfad
CN110911184B (zh) * 2019-12-20 2020-07-14 深圳市中电通科技实业有限公司 一种可远程控制安全电开关
EP3926653B1 (fr) 2020-06-15 2024-08-14 Hitachi Energy Ltd Système de réduction de rebond de contact
CN113257640B (zh) * 2021-05-10 2023-03-14 北京中磁新材科技有限公司 双联断路器
CA3197843A1 (fr) * 2022-04-22 2023-10-22 Technologies Mindcore Inc. Interrupteur de puissance electrique et methode connexe
EP4651166A1 (fr) * 2024-05-17 2025-11-19 ABB Schweiz AG Pôle de commutation pour applications électriques
CN118538569B (zh) * 2024-07-24 2024-12-03 宇邦电气有限公司 一种全包覆式三工位真空断路器

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Also Published As

Publication number Publication date
US9659729B2 (en) 2017-05-23
WO2015062786A1 (fr) 2015-05-07
EP3044801B1 (fr) 2017-08-16
DK3044801T3 (da) 2017-11-06
CN105706205A (zh) 2016-06-22
US20160254110A1 (en) 2016-09-01
CN105706205B (zh) 2018-08-31
DE102013221910A1 (de) 2015-04-30

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