CN1210747C - Circuit breaker, for example automatic cutout - Google Patents

Circuit breaker, for example automatic cutout Download PDF

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Publication number
CN1210747C
CN1210747C CNB008095485A CN00809548A CN1210747C CN 1210747 C CN1210747 C CN 1210747C CN B008095485 A CNB008095485 A CN B008095485A CN 00809548 A CN00809548 A CN 00809548A CN 1210747 C CN1210747 C CN 1210747C
Authority
CN
China
Prior art keywords
contact arm
bolster
protection switch
contact
switch device
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.)
Expired - Fee Related
Application number
CNB008095485A
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Chinese (zh)
Other versions
CN1358321A (en
Inventor
冈瑟·埃克特
埃尔马·费希尔
克里斯托弗·韦伯
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 CN1358321A publication Critical patent/CN1358321A/en
Application granted granted Critical
Publication of CN1210747C publication Critical patent/CN1210747C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/50Manual reset mechanisms which may be also used for manual release
    • H01H71/52Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/046Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms
    • H01H2300/048Snap closing by latched movable contact, wherein the movable contact is held in a minimal distance from the fixed contact during first phase of closing sequence in which a closing spring is charged
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04Means for indicating condition of the switching device

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Keying Circuit Devices (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Lock And Its Accessories (AREA)
  • Breakers (AREA)

Abstract

The invention relates to a circuit breaker, for example an automatic cutout, whose switch latch can be unlatched between a manual command organ (10) and at least one movable contact arm (1) at a latching position between a latch (6) and a trip lever (5) by means of a trip element. According to the invention, the movable contact arm (1) is accommodated in a link (2) that encloses the same on both sides on a first pin bearing (3) in a movable and rotatable manner. Said pin bearing (3) also accommodates the latch (6) off-center and the link (2) has a further pin bearing (4) on both sides. The trip lever (5) is mounted off-center on said pin bearing (4) in a stationary and rotatable manner. The link (2) and the movable contact arm (1), if it does not rest on a stationary contact (7), swivel about said pin bearing. The first pin bearing (3) restricts the cutout travel of the contact arm (1).

Description

The protection switch device
Technical field
The present invention relates to a kind of protection switch device; for example a kind of line protection switch, its position latching of switch lock (Schaltschlo β) between ratchet and release lever between manual operating mechanism and at least one motion contact arm can be thrown off by releasing device.
Background technology
This class protection switch device has various structural shapes on market.In order to satisfy diverse requirement in the real work, the movement mechanism more complicated of the switch lock of this protection switch device.People attempt the structure naturalization of protection switch device is some simple citation forms again and again on the other hand, but require again these citation forms are improved (EP-B-0299291).Known switch lock is by slide rail work.
In addition, have overhang breech lock that is have the switch lock of variable position latching of what is called, have guiding accurately and the less advantage of friction loss, so there is lower spring force just enough.In known a kind of small-sized automatic switch (DE-A-1904731), the breech lock of variable bit is realized by flat member arranged side by side.
Summary of the invention
The object of the present invention is to provide a kind of the have compact switch lock and the protection switch device of contact configuration, it allows to realize mobile position latching.
A kind of protection switch device of purpose of the present invention realizes that its position latching of the switch lock between manual operating mechanism and at least one motion contact arm between ratchet and release lever can be thrown off by releasing device.In view of the above, the motion contact arm in clamping plate that surround it from both sides with clamping plate position changeable and rotatable motion be bearing on first bolster.Ratchet also is installed on this bolster prejudicially.Clamping plate have another root to stretch out the bolster of both sides, and release lever fixed-site but rotatable motion ground off-centre is installed on this bolster.Clamping plate and motion contact arm (when it does not abut on the fixed contact) rotate around this axle.The disconnection stroke of first bolster restriction contact arm is for example by making axle rest in the disconnection stroke that limits contact arm on the shell backstop.Therefore it is called disconnection backstop again.
Clamping plate constitute a stable supporting member of ratchet and release lever, and ratchet and release lever can be arranged in a plane that is positioned at above or below the contact regions.This stable clamp region can hang down frictionally break contact fast under the situation of distortionless ground guiding movement contact arm.Do not need the slotted hole guiding device for this reason.This unsymmetric structure by a plurality of planes causes another significant advantage, and that has avoided backfire exactly.Impinge upon on the backstop of a restriction contact travel after the motion contact disconnects and can arc back during rebound, the contact of moving in this case be again near the right fixed contact in contact.Be arranged in the plane with respect to contact making device off-centre because disconnect backstop, that is be arranged in outside the plane, contact making device place, so produce twisting vibration in the release ballistic motion process of releasing device impact bar, it plays damping action to switching process.Therefore, described structure makes on the one hand stable and guide distortionlessly and act on the release lever twisting vibration of damping on the other hand unite when disconnecting to the motion contact arm.Avoided backfire thus.Contact arm is guided distortionlessly and is also prevented to cause jiggly contact position.
In addition, also have an advantage, that is switch lock and contact arm can become a kind of device of compactness by the structure on a plurality of planes.
The bolster that is used for release lever can advantageously be arranged in the closing of contact one side of contact arm with respect to the bolster that is used for contact arm.Therefore have on the contact arm one be used to produce contact force and when disconnecting in the contact spring of generation breakaway just much of that.Thereby do not need more a plurality of spring forces, otherwise they can be offset in different switching processes and reduce.
Ratchet can support a connecting rod of going to manual operating mechanism at a position changeable and in respect to the bolster of contact arm pawl-bearing at regular intervals, and this helps the structural design of switch lock.
Contact arm can advantageously be made up of two members that overlap vertically.One is can be by the essential part of the high made of mechanical strength, and another then is the contact base of the good made of available electric conductivity or the head that constitutes the contact, and this can optimize the protection switch device.Essential part and contact base can overlap vertically each other, can simplify manufacturing like this.
An instant shut-in mechanism (Sprungschaltwerk) can be connected with manual operating mechanism in such a way, that is, when connecting with manual operating, have the spacing body that discharges the limit the contact between drawn back, connect thereby finish great-jump-forward.This instant shut-in mechanism is known different structural shape (DE-A-4016364).This type of instant shut-in mechanism causes strong especially operation bump, but by pressing this switching impulse of structure damping of the present invention.
The magnetic release can be provided with in such a way, that is, its push rod that is called impact bar (Schlaganker) again acts on the release lever to form a long arm of force.
A spring action is more advantageously arranged on contact arm between contact arm bolster and release lever bolster.This spring can advantageously be placed on that side of manual operating mechanism and be designed to tension spring.Obtain contact force and contact breakaway by this spring thus, needn't overcome anti-spring force.Clamping plate can be connected with a position of the switch indicating device.The guiding of motion contact arm in clamping plate can be carried out in additional leading between the rib.
Description of drawings
The embodiment that now illustrates roughly by the accompanying drawing part further specifies the present invention, in the accompanying drawing:
Fig. 1 is the three-dimensional diagrammatic sketch of a significant components of protection switch device.One clamping plate surround motion contact arm both sides and constitute the axle of bolster;
The assembly that Fig. 2 exploded representation is shown in Figure 1;
Fig. 3 represents to be in the protection switch device of open position, and it has the push rod of manual operating mechanism, switch lock and contact making device and a magnetic release, for the purpose of view is clear this magnetic release is not shown;
Fig. 4 illustrates the protection switch device that is in on-position according to the expression mode of Fig. 3;
Fig. 5 schematically illustrates momentary connection, has wherein taken the some other member shown in Fig. 3 and Fig. 4 away for view is clear;
Fig. 6 represents the impact initiating device that is used to thread off by the expression mode of Fig. 3 and Fig. 4 and in conjunction with a shown switch spring, and wherein the push rod of magnetic release just bumps against on the release lever;
Fig. 7 represents an additional position of the switch indicating device by the expression mode of Fig. 3 and Fig. 4.
Embodiment
Press Fig. 1, the protection switch device has a motion contact arm 1, and on first bolster 3, and the movement mechanism of press switch lock is with the clamping plate position-adjustable with rotatably move at clamping plate 2 internal supports that surround it from both sides for it.Clamping plate 2 have another root to stretch out the bolster 4 of both sides, and fixed-site on this bolster but rotatable motion ground off-centre is equipped with a release lever.Clamping plate and motion contact arm (when it does not abut on the fixed contact 7 as shown in Figure 3) also can rotate around this another root axle.First bolster 3 also limits the disconnection stroke of contact arm 1.Can be to this referring to Fig. 3.
Fig. 3 represents open position.The bolster 4 of release lever fixed-site is arranged on that side of the contact arm closing of contact with respect to the bolster 3 of contact arm 1 position changeable.Contact arm 1 is right with 7 formations, one contact, contact of fixed-site.Ratchet 6 has in the pawl-bearing 8 of certain distance at a position changeable and with respect to the bolster 3 of contact arm 1, is supporting a connecting rod 9 that links to each other with manual operating mechanism 10.
In this embodiment, contact arm 1 separated into two parts ground is made up of two members that overlap mutually vertically.Essential part 11 with the high material system of mechanical strength is mechanically fixedlyed connected with the head of a contact base 12 or formation contact in the side, for example connects by electric spot welding.DYN dynamic release can be undertaken by a dynamo-electric release, has represented its push rod 13 among the figure.
Fig. 4 represents the protection switch device after the open position of Fig. 3 turns to on-position with manual operating mechanism 10.Fig. 4 is the same with Fig. 3, and it does not illustrate common dynamo-electric release yet for the purpose of view is clear.
Fig. 6 is as the spring 14 that acts between contact arm bolster 3 and release lever 5 bolsters 4 on the contact arm 1 of having added shown in Figure 4.In addition, the moment of representing among the figure is that because electrodynamic type discharges, push rod 13 is just in time run into release lever 5, threads off so that break away from release lever 5 initiations by ratchet 6.Push rod 13 acts on and forms a long arm of force 15 on the release lever 5 is more favourable.
Fig. 5 has represented an additional instant shut-in mechanism 16 that is provided with, and it is connected with manual operating mechanism 10.When connecting with manual operating, have the spacing body 17 that discharges limit 18 and between the contact is to 19, drawn back, to connect thereby finish great-jump-forward, this moment, the contact arm collision was on fixed contact 7.This instant shut-in mechanism is known in principle different structural shape (DE-A-4016364).The impulsive force that is caused by this instant shut-in mechanism, motion contact arm 1, clamping plate 2, release lever 5, ratchet 6 and the disconnection backstop at first bolster, 3 places by above-mentioned layout absorb dampedly.In the embodiment shown in fig. 6, switch spring 14 is located at towards a side of manual operating mechanism 10 and is designed to tension spring.
In the embodiment shown in fig. 7, a position of the switch indicating device 20 is connected with clamping plate 1.Wherein, witness marking 21 below form 22 according to position of the switch deflection.
The motion contact arm can be additionally by leading rib 23 guidings in clamping plate 2.

Claims (10)

1. protection switch device, can throwing off by the locking devicen of a releasing device between ratchet (6) and release lever (5) of it at the switch lock between a manual operating mechanism (10) and the motion contact arm (1), it is characterized in that: motion contact arm (1) in the clamping plate (2) that surround it from both sides with clamping plate (2) position changeable and rotatable motion be bearing on first bolster (3), ratchet (6) also is installed on this bolster (3) prejudicially; And, clamping plate (2) have another root to stretch out the bolster (4) of both sides, go up fixed-site but rotatable motion ground off-centre is installed with release lever (5) at bolster (4), motion contact arm (1) when it does not abut in fixed contact (7) and goes up and clamping plate (2) rotate around bolster (4), at this, the disconnection stroke of first bolster (3) restriction contact arm (1).
2. according to the described protection switch of claim 1, it is characterized in that: the bolster (4) that is used for release lever (5) is arranged in a side of contact arm (1) closing of contact with respect to the bolster that is used for contact arm (1) (3).
3. according to claim 1 or 2 described protection switch devices; it is characterized in that: ratchet (6) has in the pawl-bearing (8) of certain distance at a position changeable and with respect to the bolster (3) of contact arm (1), is supporting a connecting rod (9) of going to manual operating mechanism (10).
4. according to each described protection switch device in the claim 1 to 3, it is characterized in that: contact arm (1) separated into two parts ground is by vertically (3; 4) two members of overlap joint are formed, and one is the essential part made from the high material of mechanical strength (11), and one is the contact base (12) made with the good material of electric conductivity or the head of formation contact.
5. according to the described protection switch device of claim 1, it is characterized in that described protection switch device is a line protection switch.
6. according to the described protection switch device of above-mentioned each claim, it is characterized in that: a magnetic release can act on its push rod (13) release lever (5) and go up to form a long arm of force (15).
7. according to the described protection switch device of above-mentioned each claim, it is characterized in that: the spring (14) between contact arm (1) bolster (3) and release lever (5) bolster (4) acts on the contact arm (1).
8. according to the described protection switch device of claim 7, it is characterized in that: described spring (14) is placed in towards that side of manual operating mechanism (10) and is designed to tension spring.
9. according to the described protection switch device of above-mentioned each claim, it is characterized in that: a position of the switch indicating device (20) is connected with clamping plate (2).
10. according to the described protection switch device of above-mentioned each claim, it is characterized in that: described motion contact arm (1) is led guiding between the rib (23) in clamping plate (2) inherence.
CNB008095485A 1999-04-28 2000-04-17 Circuit breaker, for example automatic cutout Expired - Fee Related CN1210747C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19919420A DE19919420A1 (en) 1999-04-28 1999-04-28 Circuit breaker, for example circuit breaker
DE19919420.3 1999-04-28

Publications (2)

Publication Number Publication Date
CN1358321A CN1358321A (en) 2002-07-10
CN1210747C true CN1210747C (en) 2005-07-13

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ID=7906217

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB008095485A Expired - Fee Related CN1210747C (en) 1999-04-28 2000-04-17 Circuit breaker, for example automatic cutout

Country Status (8)

Country Link
EP (1) EP1173868B1 (en)
CN (1) CN1210747C (en)
AT (1) ATE228267T1 (en)
BR (1) BR0010136A (en)
DE (2) DE19919420A1 (en)
ES (1) ES2187469T3 (en)
TR (1) TR200103118T2 (en)
WO (1) WO2000067278A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1913074B (en) * 2005-08-12 2010-12-22 Abb专利有限公司 Circuit breaker

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10133878B4 (en) * 2001-07-12 2004-07-08 Siemens Ag Switchgear with a key switch
DE10211905A1 (en) * 2002-03-18 2004-04-15 Eti Elektroelement D.D. Miniature circuit breaker with two-pole interruption
CN102412099B (en) * 2011-08-08 2014-07-02 山东卓尔电气有限公司 Locking mechanism for electromagnetic switch
CN103000437B (en) * 2011-09-15 2015-09-23 西门子公司 Switching-on mechanism and comprise the isolating switch of this switching-on mechanism
CN103681128B (en) * 2013-12-19 2016-05-18 厦门宏发开关设备有限公司 The switch disconnector that a kind of tape jam is reminded
EP3090472B1 (en) 2014-01-03 2024-05-08 Electronic Theatre Controls, Inc. Electrical circuit breaker assembly
DE102014106015A1 (en) * 2014-04-29 2015-10-29 Eaton Industries Austria Gmbh switchgear

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Publication number Priority date Publication date Assignee Title
DE1904731C3 (en) * 1969-01-31 1975-11-20 Joseph Dipl.-Ing. 8500 Nuernberg Westermeyer Small electrical self switch
DE3339398A1 (en) * 1983-10-29 1985-05-09 Sursum Elektrizitätsgesellschaft Leyhausen GmbH & Co, 8500 Nürnberg SELF-SWITCH WITH OPEN AND CLOSED CONTACT POSITION
EP0188482B1 (en) * 1984-07-14 1989-03-15 Licentia Patent-Verwaltungs-GmbH Switch latch
TR23732A (en) * 1987-07-13 1990-07-30 Siemens Ag CIRCUIT PROTECTION SWITCH.
DE4016364A1 (en) * 1989-06-30 1991-01-03 Siemens Ag Load breaker switch with spring release latch - uses intermediate element inserted in closure path on movable contact
US5214402A (en) * 1991-12-23 1993-05-25 North American Philips Corporation Trip link latch and interpole link for a circuit breaker
AT404648B (en) * 1992-06-29 1999-01-25 Felten & Guilleaume Ag Oester SELF-SWITCH
FR2766292B1 (en) * 1997-07-16 1999-09-03 Schneider Electric Sa DEVICE FOR CONTROLLING AN ELECTRICAL PROTECTION APPARATUS SUCH AS A CIRCUIT BREAKER INCLUDING A MEANS FOR SIGNALING A TRIGGER, AND CIRCUIT BREAKER PROVIDED WITH SUCH A DEVICE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1913074B (en) * 2005-08-12 2010-12-22 Abb专利有限公司 Circuit breaker

Also Published As

Publication number Publication date
CN1358321A (en) 2002-07-10
DE50000796D1 (en) 2003-01-02
BR0010136A (en) 2002-01-22
WO2000067278A1 (en) 2000-11-09
EP1173868A1 (en) 2002-01-23
EP1173868B1 (en) 2002-11-20
ATE228267T1 (en) 2002-12-15
TR200103118T2 (en) 2002-04-22
DE19919420A1 (en) 2000-11-02
ES2187469T3 (en) 2003-06-16

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SE01 Entry into force of request for substantive examination
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Granted publication date: 20050713

Termination date: 20190417