EP2843676A1 - Dispositif de commutation - Google Patents

Dispositif de commutation Download PDF

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Publication number
EP2843676A1
EP2843676A1 EP14181228.9A EP14181228A EP2843676A1 EP 2843676 A1 EP2843676 A1 EP 2843676A1 EP 14181228 A EP14181228 A EP 14181228A EP 2843676 A1 EP2843676 A1 EP 2843676A1
Authority
EP
European Patent Office
Prior art keywords
switching device
impeller
housing
nose
driven element
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
EP14181228.9A
Other languages
German (de)
English (en)
Other versions
EP2843676B1 (fr
Inventor
En Qiang Pu
Jing Huang
Ming Hua Liu
Yun Liu
Lei Song
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
Publication of EP2843676A1 publication Critical patent/EP2843676A1/fr
Application granted granted Critical
Publication of EP2843676B1 publication Critical patent/EP2843676B1/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
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H01H71/1027—Interconnected mechanisms comprising a bidirectional connecting member actuated by the opening movement of one pole to trip a neighbour pole
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel

Definitions

  • the invention relates to an electrical switching device, in particular an operator-independent disconnector.
  • Switching devices from the field of low-voltage technology, in particular, for example, disconnectors, can be used to control the opening or closing of circuits and have a Schnellö Stamms- or -sch narrowfunktion, so as to reduce the impairment to the greatest extent possible by arcing.
  • switch devices particularly circuit breakers
  • circuit breakers are often designed to manually actuate an operating lever by an operator so as to cause, via a series of coupled parts, release of the connection of the moving contact with the fixed contact .
  • the drive shaft is always actuated at different rates and speeds, but it is desired that the connection between the moving and fixed contacts always be made at substantially constant force, torque, or speed under all circumstances , For this reason, the idea of an "operator-independent" switch device came up in current technology.
  • a switch apparatus comprising an output member having an output shaft and two drive portions and two contact portions respectively disposed on two sides of said output shaft; a spring mechanism, said spring mechanism pressing against said contact portions of said output member; and a drive shaft which can set one of said drive portions of said output member in motion.
  • Said output element has two vanes separated from the output member body, with a spacing between said vanes and said output member body.
  • the object of the invention is to provide a switching device in which it is possible, in the phase of establishing the connection between the movable and the fixed contact before the actuators connected to the movable contact are actuated independently, to avoid that said impellers as well as moving associated with these movable contact operator too early.
  • a switching device comprising: a housing; a drive rotation mechanism; an output member having a first connection part and a second connection part with which the drive rotation mechanism selectively connects such that the output element correspondingly rotates in a first direction or in a second direction opposite thereto, said output element still having at least one output surface; at least one elastic tensioning mechanism that presses against said output surface perpendicular to the axis of rotation of the output element; and at least one impeller, each impeller having a body and at least one wing radially extending from the body.
  • the output element comprises a recess (recess and a notch), which serve to record said wing of the impeller with idle stroke.
  • Said at least one impeller is configured to be coaxial with said output member, whereby said output member relative to said impeller and via a connection with said vane said impeller may drivingly rotate in said first or second direction.
  • Said disconnector may also comprise a retaining mechanism configured to engage, before said output member engages said first direction rotates and makes contact with said wing, said wing stops and, after said driven element has received a connection with said wing, said driven element overcomes the holding force by means of the elastic moment of the elastic tensioning mechanism and so said impeller rotates together into said first one Direction drives.
  • the solution is thus a switching device, comprising: a housing, a drive rotation mechanism which cooperates with a rotatably mounted in the housing output member such that the output element rotates when switching the switching device in a first direction, arranged on the output element radially outwardly curved non-circular Output surface having a vertex, an elastic clamping mechanism which presses perpendicular to the axis of rotation of the driven element against the driven surface, so that the clamping mechanism continues to rotate the driven element in the course of rotation of the driven element after exceeding the vertex automatically, an impeller, a radially to Having outside extending wings, a formed on the output member recess into which the impeller is used coaxially to the axis of rotation of the output element and freely rotatable within a Leerhubs, of a first and second 6.3fl is limited, wherein the output member rotates the impeller via the wing after abutment against the first abutment surface in the first direction, and a holding mechanism which
  • the impellers (the movable contact) before the trip point can be reliably fixed and still operated independently under the action of the elastic tensioning mechanism to turn on the switch, in particular a circuit breaker, what for Maintaining a good, operator-independent connection function with respect to the movable and the fixed contact is particularly advantageous.
  • said holding mechanism is configured to hold said wings by means of frictional force and / or resilient latching force, providing a simple and practical method of retaining the impellers and the movable contact.
  • said holding mechanism comprises a holding member mounted on said housing and an axially extending nose placed on said vane impeller blade.
  • said holding part comprises, on the path of the second direction in which the vanes of said vanes rotate, sequentially spaced first and second elastic protuberances and recessed regions located between and delimited by these first and second elastic protuberances with said nose configured to be held in said recessed area.
  • said first elastic bump has an inclined surface on the two sides in contact with said nose.
  • said nose has in the circumferential direction on inclined surfaces, what a additional advantage for overcoming the holding force means.
  • said nose is designed as circular in the circumferential direction inclined surfaces having circular, oval, rectangular or polygonal nose.
  • said nose may be resilient so that said elastic nose can overcome said first bump and pass into the recessed area where it is retained.
  • said switching device comprises a pair of said impellers mounted respectively on the two end surfaces in the axial direction of the output member. This makes the circuit breaker several modes possible.
  • each impeller can now each connect to the corresponding movable contact group.
  • the two impellers may rotate synchronously in this mode of operation, moreover said vanes of each impeller have said lug, and said casing has on the two side surfaces opposite this pair of impellers a respective holding member, thereby producing an excellent parallel force system.
  • the impeller of one side is connected to the movable contact
  • the impeller of the other side may be connected, for example via a wedge with a lateral drive shaft, which may for example be arranged coaxially to the output element, wherein now connected to the drive shaft impeller is driven to rotate relative to the output element and thus the output element in rotation, whereupon then the output element in turn, as described above, the impeller connected to the movable contact in rotation, wherein at least on the connected to the movable contact impeller as described above holding mechanism is mounted, but preferably all impellers with a said holding mechanism of the embodiment of this invention are provided.
  • each impeller has a pair of oppositely extending wings, each said wing having said nose, and said housing having a pair of corresponding symmetrically arranged holding parts with respect to the axis of rotation of the impellers, also resulting in an excellent parallel force system contributes.
  • said housing has an arcuate recess disposed along the path of movement of said nose, said retaining member being located in said arcuate recess, thereby advantageously preventing the nose from interfering with the movement of the impellers during normal operation.
  • said circuit breaker has two elastic biasing mechanisms symmetrically arranged by two output members relative to the rotation axis, and said output member has two respective output surfaces, each elastic tensioning mechanism having a thrust pad in contact with said driven surface, a thrust piece urging said thrust piece Output member serving spring and a carrier connected to the spring remote from the end of the pressure piece carrier, wherein said carrier is mounted on the housing, which is advantageous for providing a balanced elastic force moment.
  • said housing has an opening for supporting said body of the impeller, a pair of arcuate guide grooves arranged in the direction of rotation of said driven element, and a pair of straight guide grooves arranged in the biasing direction of the elastic clamping mechanism; said output member having arcuate guide struts or guide pins and said resilient chuck mechanism seated in said respective arcuate guide grooves in said straight guide grooves, thereby providing a simple support and guide structure to each component of the switching device of this invention.
  • said holding mechanism comprises an inclined wedge surface disposed on said housing and a wedge surface correspondingly disposed on the vane impeller, said holding mechanism being arranged to retain said impeller via the frictional force between said wedge surfaces of the housing and vane a stable holding force means, whereby larger vibrations of the components are avoided.
  • said switching device is a circuit breaker.
  • FIG. 1 shows a schematic representation of a 3D view of a switch device (switching device) 100.
  • the switch device 100 is designed as a circuit breaker and comprises, as in the Figures 1 and 2 a housing 1, a drive shaft 2, an output element 3, an elastic clamping mechanism 4, a first and a second impeller 5, 6 and a holding mechanism 7 (see FIG. 3 ).
  • the housing 1 of the switch device 100 comprises substantially two interconnected housing halves (for the sake of clarity, only one housing half is shown.
  • the drive shaft 2 extends from the upper part of the housing into the housing interior so that it can rotate about the substantially vertical axis of rotation in order to actuate the output element 3 connected to it.
  • the drive shaft 2 has a radially extending drive tooth 21.
  • the output element 3 has on the upper side a first connection part 31 and a second connection part 32, with which the drive tooth 21 selectively connects.
  • the output element 3 is rotatably mounted in the housing 1, that it is a horizontal axis can turn. In other words, the axis of rotation of the drive shaft 2 is perpendicular to the axis of rotation of the output element. 3
  • each of the clamping mechanisms 4 has a in a second horizontal axis of rotation of the Output element 3 perpendicular direction extending biasing direction, consequently acting on the driven element 3, the constant pressure (elastic force) of the pair of elastic biasing mechanisms 4 and due to the different positions of the pressure on the output surfaces 35 is formed on the output element 3, a corresponding moment of force, as explained in more detail below ,
  • the first impeller 5 and the second impeller 6 are each coaxial with the output member 3, but mounted on the two end surfaces in the axial direction of the output member that they can rotate relative to each other, wherein the first and second impeller 5, 6 synchronously (for example, drive only from above) or asynchronously (for example drive from above and from the side) can rotate and thereby be supported in the opening 11 of the housing 1, as explained below.
  • the first impeller 5 may have a body 51 and a first and second vanes 52, 53 extending radially from the body, the first and second vanes 52, 53 extending radially in opposite directions.
  • the second impeller 6 may have an identical or substantially coincident structure with the first impeller 5, wherein the two impellers are arranged in the opposite direction.
  • the output member 3 For receiving the impellers 5, 6 and in particular their wings 52, 53, the output member 3 defines a notch (recess) 33.
  • the notch 33 preferably takes in the direction of movement of the wings 52, 53, the wings 52, 53 with Leerhub (play) on, so that the driven element 3 in the Leerhub Scheme relative to at least one of the impellers 52, 53, for example, connected to the movable contact impeller, rotate, and via a connection with the impellers 5, 6 at the connection surface the notch has at least one of the impellers 5, 6 in rotation (when rotated in the opposite direction, the connection with the impeller is made at the joint surface of the notch on the opposite side).
  • the output element 3 comprises, as in FIG. 2 to see two plate-shaped main body, wherein the plate-shaped main body in the axial direction, the notch 33 form. Between the plate-shaped main bodies there is a connection via a connecting part, and on the side surface of the connecting part output surface 35 is formed. On the plate-shaped main bodies 35, a stop 37 is formed at the two ends of the output surfaces. In addition, over the two major surfaces of the plate-shaped main body extending arcuate guide struts 34. As in FIG. 4 to see, the housing 1 has corresponding arcuate guide grooves 14, so that the output element 3 is mounted on the housing 1 so that it can rotate.
  • the elastic tensioning mechanism 4 comprises a pressure piece 41 pressing against the output surface 35, a spring 42 in the form of a compression spring, and a support 43, the support 43 being mounted in the receiving part 13 of the housing 1.
  • One end of the spring 42 is connected via the continuous pressure piece 41 to the guide pin 44 of the spring 42, the other end to the carrier 43.
  • the pressure piece 41 has a protruding connecting surface to press against the driven surface 35, and the elastic tensioning mechanism 4th may comprise a stopper 45 penetrating the pressure piece 41 and arranged substantially parallel to the axial direction of the output element 3, wherein the stopper 45 at the end of the travel path of the output element 3 with the stop 37 of the output element 3 ( FIG.
  • the housing 1 also has horizontally extending straight guide grooves 15 connected to the arcuate guide grooves 14, and the two ends of the guide pins 44 can be held by and guided in the straight guide grooves 15.
  • FIGS. 1 and 3 together to recognize the basic operation of the switch device 100.
  • the drive shaft 2 rotates clockwise when viewed from above on the switch device 100, so that it connects the drive tooth 21 with the first connection part 31 of the output element 3 comes and the output member 3 of the drive tooth 21 in the direction B, namely seen from the front of the off switch ( FIG. 3 ) is rotated in the counterclockwise direction (namely in the first direction).
  • the driven element 3 compresses the elastic tensioning mechanism 4 via the driven surface 35 and overcomes the force moment applied by the elastic tensioning mechanism 4.
  • the vanes 5, 6 do not rotate with the output element 3 at this time due to the presence of the idle stroke in the notch 33, but remain largely at rest as described below by being held in place by a holding mechanism.
  • the elastic tensioning mechanism 4 reaches the position of its greatest compression, at which time the driven element is in the dead center position (namely the position in which the from the elastic tensioning mechanism 4 applied to the driven element 3 is almost zero) or is in the vicinity thereof, and the driven element 3 based on the vanes 5, 6 has covered the Leerhubweg and comes into contact with the vaned wheels.
  • the dead center corresponds to the vertex of the output surface 35, which is formed correspondingly out of round.
  • the elastic tensioning mechanism 4 changes its torque direction by acting on the driven element 3 in the same direction as the input torque, so that the output element 3 rotates counterclockwise by the action of the spring force and via the connecting surface of the notch of the output element 3, the impellers 5, 6 is driven to rotate quickly counterclockwise.
  • the movable contact (not shown) connected to one or both of the impellers 5, 6 is rapidly driven to make contact with the fixed contact, thus completing the turn-on operation.
  • the drive shaft 2 rotates in the other direction, then they can rotate in the opposite direction, for example, the output element and the vanes (after overcoming the idle stroke) then rotate in a clockwise direction (second direction).
  • the holding mechanism 7 In the process of turning on the switch device 100, when the output member 3 rotates in the first direction and the idle stroke in the notch 33 and recess is not overcome, namely, when the output member 3 is not connected to the wings and / or the output member 3 the Dead center has not exceeded, then holds the holding mechanism 7 by means of elastic latching force or friction force temporarily fixed the wings so that they do not move. And after the output member 3 has exceeded the dead center, the holding force of the holding mechanism 7 can be overcome by the elastic force of the clamping mechanism 4.
  • the holding mechanism 7 comprises a housing attached to the holding part 71 and one on the first and second wings 52, 53 arranged, extending in the axial direction nose 72.
  • the holding part 71 is seated in the path of movement of the lugs 72 of the wings 52, 53 and is positioned so that, when the output element 3 is in the vicinity of the dead center, it holds the wings 52, 53 in the position in which it will shortly come into contact with the notch 33 of the output element.
  • the holding member 71 comprises, on the path of the second direction, in which the vanes of the vanes rotate successively with interstices disposed therebetween, first elastic protrusions 711 and second elastic protrusions 712 and between these first and second surveys and recessed areas.
  • the nose 72 can overcome the first elevation 711 easier, the first elastic elevation 711 at the two coming into contact with the nose 72 sides an inclined surface.
  • the nose 72 may have inclined surfaces in the circumferential direction.
  • the second elastic elevation 712 as the first elastic elevation 711 may have inclined surfaces.
  • Each wing of the impeller 5, 6 thus has here, for example, the same circumferentially inclined surfaces having circular lugs 72.
  • nose 72 may be a square or rectangular nose having inclined surfaces seen in the circumferential direction.
  • the nose 72 may be provided in one, in two, in three or in all of these four wings, wherein corresponding holding parts 71 are arranged, and vice versa.
  • one or more noses can be arranged in a wing.
  • the circuit breaker has a lateral actuating function, it is possible that only on the with the movable Contact connected impeller noses; or it can also be present on all vanes noses, which is advantageous for a versatile usability of the circuit breaker.
  • arcuate recess 12 may be provided.
  • the holding part 71 is located in the arcuate recess 12. In this way, the movement of the nose 72 after overcoming the holding part 71 is not hindered.
  • the arcuate recess 12 is located between the opening 11 and the arcuate guide groove fourteenth

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Push-Button Switches (AREA)
EP14181228.9A 2013-08-30 2014-08-18 Dispositif de commutation Active EP2843676B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310389806.XA CN104425147B (zh) 2013-08-30 2013-08-30 隔离开关

Publications (2)

Publication Number Publication Date
EP2843676A1 true EP2843676A1 (fr) 2015-03-04
EP2843676B1 EP2843676B1 (fr) 2016-08-03

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EP14181228.9A Active EP2843676B1 (fr) 2013-08-30 2014-08-18 Dispositif de commutation

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EP (1) EP2843676B1 (fr)
CN (1) CN104425147B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016165054A1 (fr) * 2015-04-13 2016-10-20 Abb Oy Commutateur électrique
EP3242305A1 (fr) * 2016-04-29 2017-11-08 Eaton Corporation Enceinte électrique et ensemble de commutation et ensemble de transfert associé
WO2023247068A1 (fr) * 2022-06-24 2023-12-28 Eaton Intelligent Power Limited Commutateur à contact mobile et ensemble élastique

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3054925B1 (fr) * 2016-08-02 2020-05-15 Socomec Module de commande pour appareil de coupure electrique modulaire et appareil de coupure electrique modulaire obtenu
CN106449208B (zh) * 2016-10-21 2018-12-14 沈阳斯沃电器有限公司 旋转式低压隔离开关操作机构
EP3537465B1 (fr) * 2018-03-09 2020-10-21 Gorlan Team, S.L.U. Module de commutateur actionné par came et son procédé de fabrication
CN108376620A (zh) * 2018-04-02 2018-08-07 沈阳斯沃电器有限公司 一种低压开关操作机构用压缩机构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005076302A1 (fr) * 2004-02-03 2005-08-18 Abb Oy Dispositif de commutation
CN101937781A (zh) 2009-06-29 2011-01-05 西门子公司 隔离开关
DE102011086172A1 (de) * 2010-11-15 2012-05-16 Siemens Aktiengesellschaft Schalterbetätigungseinrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005076302A1 (fr) * 2004-02-03 2005-08-18 Abb Oy Dispositif de commutation
CN101937781A (zh) 2009-06-29 2011-01-05 西门子公司 隔离开关
DE102010022036A1 (de) * 2009-06-29 2011-04-28 Siemens Aktiengesellschaft Trennschalter
DE102011086172A1 (de) * 2010-11-15 2012-05-16 Siemens Aktiengesellschaft Schalterbetätigungseinrichtung
CN102468077A (zh) 2010-11-15 2012-05-23 西门子公司 一种开关操纵装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016165054A1 (fr) * 2015-04-13 2016-10-20 Abb Oy Commutateur électrique
RU2663809C1 (ru) * 2015-04-13 2018-08-10 Абб Ой Электрический выключатель
EP3284096A4 (fr) * 2015-04-13 2018-12-12 ABB Oy Commutateur électrique
US10665401B2 (en) 2015-04-13 2020-05-26 Abb Schweiz Ag Electric switch
EP3242305A1 (fr) * 2016-04-29 2017-11-08 Eaton Corporation Enceinte électrique et ensemble de commutation et ensemble de transfert associé
US9922779B2 (en) 2016-04-29 2018-03-20 Eaton Corporation Electrical enclosure, and switching assembly and transfer assembly therefor
WO2023247068A1 (fr) * 2022-06-24 2023-12-28 Eaton Intelligent Power Limited Commutateur à contact mobile et ensemble élastique

Also Published As

Publication number Publication date
CN104425147A (zh) 2015-03-18
CN104425147B (zh) 2017-04-26
EP2843676B1 (fr) 2016-08-03

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