EP2937882B1 - Commutateur, en particulier, commutateur de séparation de charge - Google Patents

Commutateur, en particulier, commutateur de séparation de charge Download PDF

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Publication number
EP2937882B1
EP2937882B1 EP14165718.9A EP14165718A EP2937882B1 EP 2937882 B1 EP2937882 B1 EP 2937882B1 EP 14165718 A EP14165718 A EP 14165718A EP 2937882 B1 EP2937882 B1 EP 2937882B1
Authority
EP
European Patent Office
Prior art keywords
movable contact
elements
contact
flat
switch
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
EP14165718.9A
Other languages
German (de)
English (en)
Other versions
EP2937882A1 (fr
Inventor
Franz Ness
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
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 filed Critical Siemens AG
Priority to EP14165718.9A priority Critical patent/EP2937882B1/fr
Priority to US14/691,619 priority patent/US9824830B2/en
Priority to CN201510271778.0A priority patent/CN105185663B/zh
Publication of EP2937882A1 publication Critical patent/EP2937882A1/fr
Application granted granted Critical
Publication of EP2937882B1 publication Critical patent/EP2937882B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • 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
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • 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
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/42—Knife-and-clip contacts
    • 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
    • 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
    • H01H1/2041—Rotating bridge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/10—Adaptation for built-in fuses
    • H01H9/106—Adaptation for built-in fuses fuse and switch being connected in parallel

Definitions

  • the invention relates to a switch, in particular a switch-disconnector, according to the preamble of claim 1.
  • Switches in the form of Lastrennschaltern are modular today and consist of Polkassetten, which are usually composed of two plastic shells. Connection elements are connected to each other when closing the switch via a switching contact having a fixed and a movable formed from current-carrying copper parts contact element with a flat contact surface, wherein the movable contact element pivots in the course of closing from an open position to a closed position.
  • connection elements are clamped in provided between the plastic shells grooves.
  • a load-break switch with switching contacts which have a double switching blade, which is embraced by a terminal contact part (contact piece) in the contact region forked. Its intended for engagement with the switch blade free end is rotated with respect to the connection end by 90 degrees (twisted) and is thus in the switch blade level.
  • the terminal contact parts are mounted on insulators (insulating supports) in the housing.
  • a switch with fixed and pivotal contact elements is known, which are arranged in a housing.
  • connection elements which are connectable via a switching contact having a fixed and a movable planar contact surface, of which the movable contact surface is formed on a movable contact element, which in the course of closing from an open position moved into a closed position, wherein the two contact surfaces each facing each other and are aligned parallel to each other, transverse to the contact surfaces increasingly overlap in the course of closing and abut each other in the closed position, wherein the two connection elements and the movable contact element each having a flat flat side and all flat sides lie in a common plane, wherein the connection elements are arranged on one side of the common plane and the movable contact element on the other side, a partial surface of the flat side of the one connection element fixed contact surface and a partial surface of the flat side of the other connecting element forms a planar bearing surface, on which the contact element is mounted pivotably about the axis, wherein the movable contact element bears with its flat side movable on this
  • the object of the invention is to reduce position inaccuracies of the components to each other, without using components with lower tolerances.
  • connection elements and the movable contact element each have a flat flat side and all flat sides lie in a common plane, wherein the connection elements are arranged on one side of the common plane and the movably mounted contact element on the other side a partial surface of the flat side of the one connecting element forms the fixed contact surface, that a partial surface of the flat side of the other connecting element forms a flat bearing surface on which the contact element is pivotally mounted about the axis, wherein the movable contact element lies with its flat side movable on this bearing surface, that On the side of the movable contact element support elements are arranged, which have support surfaces which rest against the flat sides of the connection elements, and that in a single housing shell, the support elements are integrally formed on the housing wall and the connection elements and the movable contact element are arranged, wherein the connection elements and the contact element are fastened to the support elements, so that attachment of the flat side of the contact element and the flat bearing surface takes place in the common plane.
  • the movable contact element is formed from a flat body, at one end of the movable contact surface is arranged and abuts the bearing surface at the other end.
  • the movable contact element is designed in the form of a pivot lever and pivotally mounted.
  • connection elements are plate-shaped and have the same thickness.
  • the current load can be increased if the two connection elements on both sides facing away from each other flat sides which extend parallel to each other, that the movable contact element another movable contact element with a flat side opposite, the two movable contact elements synchronously pivot and their flat sides facing each other and accordingly the thickness of the connection elements are spaced apart from each other, so that they form a slot which receives the connection element when closing the switch contact, wherein the movable contact surfaces of the two contact elements contact on both sides with fixed contact surfaces of the connection element.
  • the two flat sides of the two movable contact elements are then in each case in a common plane with the corresponding flat sides of the two connection elements, wherein the two common planes are spaced apart from each other according to the thickness of the connection elements.
  • connection elements are each formed in one piece from a flat material with the appropriate thickness by bending.
  • All live parts including the contact and connection elements are thus fastened in a single shell, e.g. by screwing, not by plugging and clamping in grooves that run through both shell walls.
  • the attachment of the flat sides of the contact and connection elements takes place in a common plane, resulting in minimum position inaccuracies of the current-carrying parts to one another.
  • These can be more flexibly adapted to the rated current, i. the rated current determines the thickness of the contact and connection elements and their thickness needs only to be as large as absolutely necessary.
  • the current-carrying parts are thus also within a size (housing size) easily adaptable to the nominal currents.
  • a switch of a size can thus be equipped for 32A simply with 1.5mm thickness of the contact and terminal elements as live parts, for 80A with 2mm and so on. This without the positional accuracy to change and thus deteriorate and without having to change all the other components of the switch in particular with regard to tolerances, which allows a very flexible switch kit.
  • the housing shell can be tolerated less accurate because it is no longer overdetermined by the connection of the copper parts. Furthermore, the assembly is facilitated because overdeterminations are no longer available.
  • Fig. 1 shows a switch 1 in the form of a circuit breaker having a housing 2 as a Polkassette, which is produced for example by injection molding. From the open housing 2 is in Fig. 1 to see only the rear shell 2a (housing shell); the removed front shell is not shown.
  • connection elements 3, 4 with led through the housing 2 to the outside lugs 3a, 4a are integrally made of plate-shaped copper sheet (copper plates) made by bending and are used to connect the switch 1 at corresponding power supply. Further connecting elements 5, 6 also made of plate-shaped copper flat material (copper plates) are located in Fig. 1 each of the two connection elements 3, 5 and 4, 6 via an elongated contact element 7, 8 are electrically connected to each other, which is also made of copper sheet and in the manner of a pivot lever each about an axis 7a and a Axis 8a is pivotable. Next connects a fuse 9, the overhead connection elements 5, 6 with each other (s. Fig. 5 . 7 ), which are bent at both upper ends to U-shaped fuse holders 11, wherein two contact blades 10 of the fuse 9 are inserted into the fuse holder 11 and clamped.
  • the connecting elements 3, 5 are connected via a switching contact 12 and the connecting elements 4, 6 can be connected via a switching contact 13, which in Fig. 1 both are closed.
  • Both switch contacts 12, 13 are arranged mirror-symmetrically to each other and constructed the same.
  • quenching plates 14 are arranged to extinguish 12 arcs when opening or closing the switch contact.
  • a switching shaft 15 is centrally located approximately in the middle of Shell 2a and is articulated via connecting rods 16 and axes 17, 19 connected to the movable contact element 7.
  • the connecting elements 3, 5 (including terminal lug 3a) have the same thickness D, ie their two parallel planar flat sides 21, 22, 23, 24 (s. Fig. 4, 5 ) are spaced according to the material thickness D from each other.
  • the pivotally mounted contact element 7 also has in each case a flat flat side 25, which on the opposite flat flat sides 21, 22 (s. Fig. 4, 5 ) of the connection elements 3, 5 is present.
  • connection elements 3, 5 lie on one side of the common plane E and the pivotally mounted contact element 7 on the other side.
  • a partial surface of the flat side 21 of the connecting element 3 forms a flat bearing surface, on which the contact element 7 is pivotally mounted about the axis 7a, wherein it rests with its flat side 25 on this bearing surface.
  • a partial surface of the flat side 25 forms a movable contact surface 27 and a partial surface of the flat side 22 of the connecting element 5 forms a fixed contact surface 28 (in FIG Fig. 1 hidden and therefore shown with dashed lines, s. also Fig. 4, 6 . 8th ).
  • Both contact surfaces 27, 28 are - like the corresponding flat flat sides 22, 25 - facing each other and aligned parallel to each other and lie in Fig. 1 - In which the closed position is shown - to each other.
  • the connecting elements 3, 5 are fastened by means of screws 29, 30 on the half-shell 2a (single-shell screw connection), wherein the flat sides 21, 22 on support surfaces 33, 34 (s. Fig. 3 ) lie, which are just formed here and also in the common level E lie.
  • the support surfaces 33, 34 in the shell 2a as flat surfaces, but instead of support surfaces 33, 34, support points lying in the common plane E (in the shell 2a) could also be used for support.
  • the support surfaces 33, 34 are thus to be understood as an example.
  • Fig. 2 shows the switch 1 after rotation of the switching shaft 15 in the clockwise direction with inwardly pivoted to the switching shaft 15 toward contact element 7.
  • the switch 1 is opened.
  • the contact surfaces 27, 28 overlap - seen transversely to the contact surfaces 27, 28 - decreasing (in the course of closing they overlap correspondingly increasingly), ie the intersection of the contact surfaces 27, 28 decreases during opening.
  • Fig. 3 only the shell 2a (the lower part of the housing 2) is shown, so that one well recognizes the lying in the common plane E support surfaces 33, 34, which are formed on the inside of the housing wall integrally formed support members 35, 36. Tolerancing takes place via the common plane E, which is also the reference plane for the dimensions of the shell 2a.
  • the support elements 35, 36 are in this case manifestations in the plastic shell 2a.
  • contact projections 37, 38 are provided, against which the connection elements 3, 5 rest laterally.
  • Fig. 4 shows only the closed switch contact 12 according to Fig. 1 with the connection elements 3, 5 and the contact element 7.
  • Fig. 5 is the switching contact 12 according to Fig. 4 to be seen from behind.
  • Fig. 6 shows the switching contact 12 according to Fig. 4 in addition also from the side.
  • Fig. 6 for better understanding the support elements 35, 36 with the support surfaces 33, 34 very schematically (and therefore dashed) drawn with.
  • the support elements are in FIG. 6 drawn on the right side, but they should be according to claim 1 on the left side.
  • FIGS. 7 and 8 show the closed switch contact 12 according to Fig. 1 with the connection elements 3, 5 and a further contact element 39, which is arranged parallel to the contact element 7, has a flat side 40 and a contact surface 41 and moves synchronously with the movable contact element 7.
  • the contact surface 41 is opposite to a contact element 5 formed on the contact surface 42, which is a partial surface of the flat side 24.
  • the flat sides 25, 40 of the two identically formed movable contact elements 7, 39 are according to the thickness D of the connection elements 3, 5 spaced from each other and facing each other, forming a slot, the plate-shaped connection element 5 when closing the switch contact 12 with a positive fit sliding contact surfaces 27, 28 and 41, 42 (not yet introduced) receives.
  • the flat sides 23, 24, 40 of the connection elements 3, 5 and the contact element 39 lie in a common, the plane F, which runs parallel to the common plane E with the distance of the thickness D.
  • a center plane M lying centrally between the planes E and F forms the plane of symmetry of the switching contact 12 in this embodiment with two contact elements 7, 39.
  • the common plane E of the left switch contact 12 and the common plane E of the right switch contact 13 need not necessarily be in a common plane.
  • the common plane E of the left switch contact 12 and the common plane E of the right switch contact 13 may differ in their position, for example, be moved parallel to each other.
  • the common plane E of the left switch contact 12 and the common plane E of the right switch contact 13 lie in a common plane E. The same applies in this exemplary embodiment also for the planes M and F.
  • connection elements 3, 4, 5, 6 including terminal lugs 3a, 4a
  • contact elements 7, 8 the axes 17, 18, 19, 20, 12, the flat sides 25, 26, the screws 29, 30, 31, 32
  • support surfaces 33, 34, 33a, 34a the support elements 35, 36, 35a, 36a and the abutment projections 37, 38, 37a, 38a.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Tumbler Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Claims (7)

  1. Interrupteur (1),
    comprenant un boîtier (2), qui a deux coques (2a) de boîtier, comprenant des éléments (3, 5) de connexion, qui peuvent être reliés par un contact (12) d'interruption, qui a une surface (28) de contact plane fixe et une surface (27) de contact plane mobile, dont la surface (27) de contact mobile est constituée sur un élément (7) de contact mobile, qui, au cours de la fermeture, passe d'une position ouverte à une position fermée,
    dans lequel les deux surfaces (27, 28) de contact sont tournées l'une vers l'autre et parallèles l'une à l'autre, se chevauchent de plus en plus au cours de la fermeture, considéré transversalement aux surfaces (27, 28) de contact, et s'appliquent l'une à l'autre en la position de fermeture,
    dans lequel
    les deux éléments (3, 5) de connexion et l'élément (7) de contact mobile ont chacun un côté (21, 22, 25) plat plan et tous les côtés (21, 22, 25) plats sont dans un plan (E) commun, les éléments (3, 5) de connexion étant disposés d'un côté du plan (E) commun et l'élément (7) de contact mobile de l'autre côté,
    une surface partielle du côté (22) plat de l'un des éléments (5) de connexion forme la surface (28) de contact fixe et une surface partielle du côté (21) plat de l'autre élément (3) de connexion, une surface de montage plane, sur laquelle l'élément (7) de contact est monté pivotant autour d'un axe (7a), l'élément (7) de contact mobile s'appliquant, par son côté (25) plat, de manière mobile, à cette surface de montage,
    du côté de l'élément (7) de contact mobile, sont disposés des éléments (35, 36) d'appui, qui ont des surfaces (33, 34) d'appui, lesquelles s'appliquent aux côtés (21, 22) plats des éléments (3, 5) de connexion et
    dans une coque (2a) unique du boîtier, les éléments (35, 36) d'appui sont formés sur la paroi du boîtier et les éléments (3, 5) de connexion, ainsi que l'élément (7) de contact mobile, y sont disposés, les éléments (3, 5) de connexion et l'élément (7) de contact étant fixés aux éléments (35, 36) d'appui, de manière à obtenir une fixation du côté (25) plat de l'élément (7) de contact et que la surface de montage plane soit dans le plan (E) commun.
  2. Interrupteur (1) suivant la revendication 1,
    caractérisé
    en ce que l'élément (7) de contact mobile est formé d'une pièce plate à une extrémité de laquelle est disposée la surface (27) de contact mobile et à l'autre extrémité de laquelle s'applique la surface de montage.
  3. Interrupteur (1) suivant l'une des revendications 1 ou 2,
    caractérisé
    en ce que l'élément (7) de contact mobile est constitué sous la forme d'un levier pivotant et est monté pivotant.
  4. Interrupteur (1) suivant l'une des revendications 1 à 3,
    caractérisé
    en ce que les deux éléments (3, 5) de connexion sont constitués sous la forme de plaque et ont la même épaisseur (D).
  5. Interrupteur (1) suivant l'une des revendications 1 à 4,
    caractérisé
    en ce que les deux éléments (3, 5) de connexion ont, de deux côtés, des côtés (21, 22, 23, 24), qui sont à distance l'un de l'autre et qui sont parallèles l'un à l'autre,
    en ce qu'un autre élément (39) de contact mobile est opposé, par un côté (40) plat, à l'élément (7) de contact mobile, les deux éléments (7, 39) de contact mobiles pivotant en synchronisme et leurs côtés (25, 40) plats étant tournés l'un vers l'autre et à une distance l'un de l'autre correspondant à l'épaisseur (D) des éléments (3, 5) de connexion, de manière à ce qu'ils forment une fente, qui, à la fermeture du contact (12) d'interruption, reçoit l'élément (5) de connexion, les surfaces (27, 41) de contact mobile des deux éléments (7, 39) de contact contactant, des deux côtés, des surfaces (28) de contact fixes de l'élément (5) de connexion.
  6. Interrupteur (1) suivant la revendication 5,
    caractérisé
    en ce que les deux côtés (25, 40) plats des deux éléments (7, 39) de contact mobiles sont, avec les côtés (21, 22, 23, 24) plats correspondants des deux éléments (3, 5) de connexion, chacun dans un plan (E, F) commun et les deux plans (E, F) communs sont à une distance l'un de l'autre correspondant à l'épaisseur (D) des éléments (3, 5) de connexion.
  7. Interrupteur (1) suivant l'une des revendications 1 à 6,
    caractérisé
    en ce que les deux éléments (3, 5) de connexion sont formés chacun par cintrage d'une seule pièce en un matériau plat ayant l'épaisseur (D) correspondante.
EP14165718.9A 2014-04-24 2014-04-24 Commutateur, en particulier, commutateur de séparation de charge Active EP2937882B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP14165718.9A EP2937882B1 (fr) 2014-04-24 2014-04-24 Commutateur, en particulier, commutateur de séparation de charge
US14/691,619 US9824830B2 (en) 2014-04-24 2015-04-21 Switch, in particular load interrupter switch
CN201510271778.0A CN105185663B (zh) 2014-04-24 2015-04-24 开关、特别是负载断路开关

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14165718.9A EP2937882B1 (fr) 2014-04-24 2014-04-24 Commutateur, en particulier, commutateur de séparation de charge

Publications (2)

Publication Number Publication Date
EP2937882A1 EP2937882A1 (fr) 2015-10-28
EP2937882B1 true EP2937882B1 (fr) 2018-09-26

Family

ID=50542880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14165718.9A Active EP2937882B1 (fr) 2014-04-24 2014-04-24 Commutateur, en particulier, commutateur de séparation de charge

Country Status (3)

Country Link
US (1) US9824830B2 (fr)
EP (1) EP2937882B1 (fr)
CN (1) CN105185663B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3726553B1 (fr) * 2019-04-18 2022-10-19 ABB Schweiz AG Dispositif de commutation
EP3916745B1 (fr) * 2020-05-28 2024-03-13 ABB Schweiz AG Commutateur électrique

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011078846A1 (de) * 2010-09-20 2012-03-22 Siemens Aktiengesellschaft Doppel-Kontaktstückvorrichtung zur Stromunterbrechung sowie Trennschalter unter Verwendung der betreffenden Vorrichtung

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
DE7914498U1 (de) * 1979-05-18 1979-09-13 Concordia Sprecher-Schaltgeraete Gmbh, 7024 Filderstadt Anschluß-Kontaktteil für Lasttrennschalter
DE3223654C2 (de) * 1982-06-24 1985-01-03 Siemens AG, 1000 Berlin und 8000 München Wälzschiebekontakt
US6222139B1 (en) * 1999-09-15 2001-04-24 General Electric Company Rotary electric switch and contact therefore
US7223928B2 (en) * 2004-12-20 2007-05-29 S&C Electric Canada Ltd. Switch with improved protection from ice conditions
FR2891395B1 (fr) * 2005-09-28 2007-11-30 Socomec Sa Sa Module de coupure pour appareil electrique et appareil electrique equipe d'un tel module
DK2482299T3 (da) * 2008-04-01 2014-01-13 Ewac Holding B V Elektrisk drejekontakt
US8013263B2 (en) * 2008-08-14 2011-09-06 Cooper Technologies Company Multi-deck transformer switch
FI123561B (fi) 2011-06-07 2013-07-15 Abb Oy Kytkin
EP2690640B1 (fr) * 2011-08-09 2016-03-30 Kabushiki Kaisha Toshiba Dispositif de commutation et son mécanisme de fonctionnement

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011078846A1 (de) * 2010-09-20 2012-03-22 Siemens Aktiengesellschaft Doppel-Kontaktstückvorrichtung zur Stromunterbrechung sowie Trennschalter unter Verwendung der betreffenden Vorrichtung

Also Published As

Publication number Publication date
EP2937882A1 (fr) 2015-10-28
CN105185663B (zh) 2020-02-21
US9824830B2 (en) 2017-11-21
CN105185663A (zh) 2015-12-23
US20150311004A1 (en) 2015-10-29

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