EP2394286A1 - Auslösevorrichtung, insbesondere für leistungsschalter - Google Patents
Auslösevorrichtung, insbesondere für leistungsschalterInfo
- Publication number
- EP2394286A1 EP2394286A1 EP10706133A EP10706133A EP2394286A1 EP 2394286 A1 EP2394286 A1 EP 2394286A1 EP 10706133 A EP10706133 A EP 10706133A EP 10706133 A EP10706133 A EP 10706133A EP 2394286 A1 EP2394286 A1 EP 2394286A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- triggering
- camshaft
- actuating means
- cam
- tripping
- 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
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 16
- 230000001960 triggered effect Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 230000006870 function Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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
- H01H71/10—Operating or release mechanisms
- H01H71/1072—Release mechanisms which are reset by opening movement of contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3031—Means for locking the spring in a charged state
-
- 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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/44—Automatic release mechanisms with or without manual release having means for introducing a predetermined time delay
-
- 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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
-
- 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
- H01H71/505—Latching devices between operating and release mechanism
Definitions
- Tripping device in particular for circuit breakers
- the invention relates to a tripping device, in particular for circuit breaker, which is at least one controllable trigger magnet with armature, which is in operative connection to a downstream trigger pawl, which is engaged with a force acting on the circuit breaker tripping mechanism, which is coupled to a prestressed spring serving as a power amplifier in engagement , having.
- Such power-operated tripping devices are used for the actuation of circuit breakers.
- the circuit-breakers designed for high currents can not only switch operating currents and low overload currents, but also switch on high overload currents and short-circuit currents in the event of errors, hold these fault currents for a predetermined time and then switch them off again.
- the overload current refers to the weakest link of the downstream of the circuit breaker, as seen in the direction of energy flow. In order to protect such downstream systems from damage due to overload or short circuit, the circuit breaker should switch off these currents in conjunction with the network protection devices within a defined time.
- a memory e.g. a spring stored.
- a very fast-acting release mechanism is needed.
- the spring forces respectively the reinforcing spring and the magnetic spring, must be increased significantly.
- this is associated with a magnet with higher power requirements, which increases the manufacturing cost of such a triggering mechanism sensitive.
- these measures require a larger space, which is usually not available.
- the object of the invention now is to propose a tripping device, in particular for circuit breakers, with which the necessary adjusting operations or switching functions can be realized with only small forces within the required switching time.
- the invention relates to a tripping device, in particular for circuit breaker, which is at least one controllable trigger magnet with armature, which is in operative connection to a downstream trigger pawl which engages with a force acting on the circuit breaker tripping mechanism, which is coupled to a prestressed spring serving as a force amplifier , having.
- the triggering mechanism comprises a camshaft having a plurality of cams, wherein each rotationally offset cam is associated with an actuating means, and in the triggering case, at least two actuating processes associated with the respective actuating means run sequentially in time, so that on at least one of these actuating means for completing the associated actuating operation, the full spring force over the camshaft is transmitted.
- adjusting operations are in the context of the invention essentially the adjusting process of triggering a switching mechanism by means of the switch lever, the operation of an auxiliary switch preferably using an auxiliary switch pins, the return movement of the trip latch and the provision of the armature of the release provided, the time-critical main function, the triggering of Switch lock, first and at maximum speed expires.
- To trigger the switching mechanism is thus the full spring force available, which allows higher switching forces and leads to shorter switching times.
- Trigger the individual actuating operations, switching mechanism, actuate the auxiliary switch, return the tripping latch and the return of the armature are preferably offset in time. All adjusting operations preferably take place at least partially successively in time, ie sequentially, with a safety period lying between the end of a setting process and the beginning of a subsequent setting process. As a result, the energy transmitted to the camshaft by the spring concentrates on the actuation (s) performed at that time.
- the decisive advantage of this invention is therefore that the tripping time of the main function, the triggering of a switching mechanism, compared to previously known solutions can be significantly shortened.
- the tripping device according to the invention makes better use of the energy of the spring force accumulator and thus requires less electric tripping energy.
- the actuating means can perform a linear or rotary adjusting movement.
- at least three actuating means are provided, of which a first actuating means as a switch lock lever rotatory adjusting movement, a second actuating means as Hilfsschalterpin a linear actuating movement and a third actuating means as a triggering pawl performs a rotary actuator movement.
- a shift lever first actuating means on a curve contour which is designed such that after taking the end position of the switch lever at a conditional by the spring force further rotational movement of the camshaft, the cam lever associated cam slides along the curve contour, wherein the angle of rotation of the camshaft significantly increased without changing the final position of the switch lever.
- the rotation angle of the shaft Because of the design of the rotation angle of the shaft is defined for triggering the switching mechanism via its switch lock lever, the rotation angle of the shaft must be increased to allow the other functions to run afterwards. Due to the increased rotation angle of the camshaft, the usable spring travel of the spring is increased and the energy yield at a given maximum force increases sharply, for example to twice.
- the return movement of the release pawl and the concomitant, but staggered return movement of the armature of the release magnet done only after taking the final position of the switch latch lever.
- the movement of the camshaft is transmitted using a coupling gear to the switching mechanism or its switch lock lever.
- the angle between the two spring suspensions and the pivot point of the camshaft according to the invention is chosen so that the spring work at a given angle of rotation of the camshaft is maximum.
- Another practice-relevant solution further consists in that at least two triggering mechanisms are provided, which in the direction of action of force one behind the other, d. H. cascaded, are arranged.
- the triggering pawl and a sperm cam each have contours formed according to the principle of stitch point displacement, as a result of which the triggering pawl can be moved with reduced expenditure of force and the latched camshaft is released more quickly.
- the adjusting operations assigned to the respective actuating means are offset in time, so that in each case the complete spring force is transmitted via the camshaft to each of these actuating means for completing the associated actuating operation,
- the triggering of the switching mechanism the actuation of the auxiliary switch, the return movement of the release latch and the return of the armature of the release magnet are provided, the time-critical main function, the triggering of the switching mechanism, first and at maximum speed,
- the tripping time can be significantly shortened compared with the solutions known from the prior art
- the switch lock lever of the switching mechanism has a curve contour, which is designed such that after taking the end position of the switch lever at a conditional by the spring force further rotational movement of the camshaft, the cam lever associated cam slides along the contour of the curve, wherein the angle of rotation of the camshaft and also the spring travel of the spring significantly increased, so more energy can be obtained from the spring.
- ⁇ the rotation angle increase allows a more efficient use of the spring energy and allows the use of weaker, lower-energy release magnets
- Fig. 1 a perspective view of the triggering device in the
- Fig. 2 a perspective view of the triggering device in the
- FIG. 3 a perspective view of the triggering device in the
- FIG. 4 a diagram illustrating the path or angle of rotation in
- Fig. 6 is a comparative diagram of the used
- FIGS 1 to 3 show a perspective view of the same tripping device 1, in particular for circuit breakers, in the starting position, in the intermediate position, and in the end position.
- the tripping device 1 according to the invention comprises a controllable triggering magnet 2 with armature 2.1, which is in operative connection with a downstream triggering pawl 6.3, which engages with a tripping mechanism acting on the power switch, which is coupled to a pretensioned spring 4 serving as a power amplifier.
- a trigger mechanism a camshaft 5 with a plurality of cams 5.1, 5.2, 5.4 is provided.
- Each placed on the camshaft 5 angle offset cam 5.1, 5.2 and 5.4 is associated with an actuating means 6, wherein in the triggering case at least two the respective actuating means 6.1, 6.2, 6.3 associated actuating processes run sequentially in time, so that on at least one of these actuating means 6.1, 6.2, 6.3 to complete the associated actuating operation, the full spring force is transmitted via the camshaft 5.
- the camshaft 5 comprises three cams 5.1, 5.2 and 5.4.
- the first cam 5.1 is in this case assigned to a first actuating means 6 designed as a switching mechanism lever 6.1.
- the rotatably mounted switch lock lever 6.1 according to the invention has a curve contour 3, whose function will be explained in more detail later.
- the switch lever 6.1 By means of the switch lever 6.1, the switching mechanism of a circuit breaker, not shown, is mechanically actuated or triggered.
- the camshaft 5, the tripping 6.3, the auxiliary switch 6.2 and the trigger magnet 2 are in a not shown Housing stored.
- the acting on the camshaft 5 and serving as a power amplifier spring 4 is also suspended in this housing. This spring 4 is biased in the initial state.
- the armature 2.1 of the controllable release magnet 2 is in operative connection with the tripping latch 6.3, which releases a further arranged on the camshaft 5 locking cam 5.3 at extended anchor 2.1, so that the spring 4 can put the camshaft 5 in a rotary motion.
- the operation of the tripping device 1 is as follows: In the starting position according to FIG. 1, the tripping magnet 2 or its coils are de-energized.
- the armature 2.1 is located completely within the release magnet 2.
- the two legs comprehensive release latch 6.3 abuts with one of its two legs on the front side of the armature 2.1.
- a driving cam 5.4 is arranged next to the locking cam 5.3.
- the release magnet 2 is energized and the armature 2.1 moves axially outward. At this time, both the tripping 6.3 and the camshaft 5 remain in their original position.
- the tripping latch 6.3 is set in rotation and releases the locking cam 5.3 of the camshaft 5 after rotation by a few degrees so that the camshaft 5 is set in rotation by the pretensioned spring 4.
- the switch lock lever 6.1 is brought in continuous rotational movement of the camshaft 5 in its final position, which is achieved in the example shown by turning to the right by a defined angle.
- the first cam 5.1 runs along the curve contour 3 of the switch lever 6.1.
- the cam 5.2 associated with the auxiliary switch pin 5.2 of the camshaft 5 reaches the auxiliary switch pin 6.2, moves it and does not actuate one illustrated auxiliary switch.
- the provision of the release latch 6.3 and the associated provision of the armature 2.1 of the release magnet begins. 2
- FIGs of Figures 4 and 5 show the path or the angle of rotation of the actuators as a function of time.
- Fig. 4 depicts the adjusting operations of the prior art; As can be seen, increases in accordance with Fig. 4 in the armature movement and the actuating movement of the tripping 6.3 6.3 initially the way over time progressively.
- the actuation triggering a switching mechanism and pressing an auxiliary switch Upon reaching the end position of the release latch 6.3 start in the previously known from the prior art conventional release mechanism, the actuation triggering a switching mechanism and pressing an auxiliary switch.
- the provision of the release latch 6.3 and the associated return of the armature 2.1 of the release magnet 2 takes place. All three or four actuations end almost at the same time.
- the provided for driving the trigger mechanism spring 4 is during the rotational movement of the camshaft 5 from their spring energy and distributes this at the same time to all three or four actuating operations, connected to the disadvantages mentioned above.
- the spring energy is distributed at different times to the individual actuating operations of FIG. 5 as follows: First, the tripping magnet 2 and its coils is energized and the armature 2.1 moves in the axial direction of the tripping latch 6.3. Just before the anchor 2.1 and the tripping 6.3 have reached their maximum deflection, the pawl releases the camshaft 5. This begins to rotate and drives on her first cam 5.1 exclusively the switch lock lever 6.1. The full spring force is available for this positioning process. Only after reaching the maximum angle of rotation, which the end position of Switch lever 6.1 corresponds to all other settlements are triggered with a time delay.
- the release latch 6.3 is reset, which simultaneously moves the armature 2.1 back to the starting position.
- a safety period Between the time end of the movement of the switching mechanism lever 6.1 and the beginning of the starting shortly thereafter adjusting movement of the second cam 5.2 of the camshaft 5 for actuating the auxiliary switch pins 6.2 and the return movement of the armature 2.1 is a safety period. All of the aforementioned actuating operations, except for the adjusting movement of the switch lever 6.1, but ends almost at the same time.
- a significant time advantage in terms of taking the final position of the switching mechanism 6.1 is recorded. In other words, the switching mechanism acting on the circuit breaker is triggered faster due to the time-delayed starting operations, since the entire spring force is concentrated on the current important process.
- FIG. 6 shows a comparative diagram of the utilized spring energy according to the prior art and the tripping device 1 according to the invention under given boundary conditions.
- the spring energy is plotted against the angle of rotation of the camshaft 5.
- the rotation angle of the trigger shaft is smaller than the rotation angle of the camshaft according to the invention 5. This is associated with the angle of rotation associated, used spring energy, which is lower in the trip shaft of the known solutions than in the camshaft 5 of the inventive solution ,
- the inventive added value corresponds to the available delta ⁇ E of the usable spring energy.
- the different angles of rotation of the camshaft 5 according to the invention with respect to the conventional triggering shaft mean that in the invention on the one hand the existing Spring energy can be used more efficiently and on the other hand that the adjustment process of triggering the switching mechanism 6.1 starts both at an earlier date and completed faster.
- the triggering device 1 is reset only after the switch lock lever 6.1 has taken its final position.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009007586A DE102009007586A1 (de) | 2009-02-05 | 2009-02-05 | Auslösevorrichtung, insbesondere für Leistungsschalter |
PCT/DE2010/000061 WO2010088875A1 (de) | 2009-02-05 | 2010-01-22 | Auslösevorrichtung, insbesondere für leistungsschalter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2394286A1 true EP2394286A1 (de) | 2011-12-14 |
EP2394286B1 EP2394286B1 (de) | 2015-11-11 |
Family
ID=42101787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10706133.5A Active EP2394286B1 (de) | 2009-02-05 | 2010-01-22 | Auslösevorrichtung, insbesondere für leistungsschalter |
Country Status (5)
Country | Link |
---|---|
US (1) | US8547190B2 (de) |
EP (1) | EP2394286B1 (de) |
CN (1) | CN102308355B (de) |
DE (1) | DE102009007586A1 (de) |
WO (1) | WO2010088875A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009021754B4 (de) | 2009-05-13 | 2023-11-16 | Siemens Aktiengesellschaft | Hilfsauslöseeinheit für einen Leistungsschalter |
JP5613027B2 (ja) * | 2010-11-22 | 2014-10-22 | 株式会社東芝 | 遮断器の操作機構 |
DE102011085600B4 (de) | 2011-11-02 | 2024-02-08 | Siemens Aktiengesellschaft | Kraftverstärkungsmodul für ein elektrisches Schaltgerät, Einheit aus Kraftverstärkungsmodul und Hilfsauslöser sowie elektrisches Schaltgerät |
DE112013004603A5 (de) * | 2012-09-20 | 2015-06-11 | Eaton Electrical Ip Gmbh & Co. Kg | Leistungsschaltgerät |
CN103794422B (zh) * | 2014-01-02 | 2016-04-13 | 浙江信基电气股份有限公司 | 用于漏电保护插座的机械脱扣机构 |
EP2947673B1 (de) * | 2014-05-21 | 2017-01-04 | ABB Schweiz AG | Auslösemechanismus für Schaltvorrichtung für niedrige und mittlere Spannungen |
CN104008932B (zh) * | 2014-06-10 | 2015-12-09 | 大全集团有限公司 | 一种用于断路器的内部附件传动装置 |
CN109950101B (zh) * | 2019-04-10 | 2024-03-22 | 宏秀电气有限公司 | 户外高压断路器的操作机构及户外高压断路器及使用方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4620171A (en) * | 1984-01-09 | 1986-10-28 | Westinghouse Electric Corp. | Molded case circuit breaker with resettable combined undervoltage and manual trip mechanism |
FR2628262B1 (fr) | 1988-03-04 | 1995-05-12 | Merlin Gerin | Mecanisme de commande d'un bloc auxiliaire de declenchement pour disjoncteur modulaire |
FR2640423B1 (fr) | 1988-12-14 | 1991-10-04 | Merlin Gerin | Mecanisme de commande d'un interrupteur differentiel multipolaire a barreau rotatif de commutation |
IT1231103B (it) * | 1989-08-09 | 1991-11-18 | Sace Spa | Dispositivo autocoordinato di manovra e protezione per apparecchiature elettriche. |
US5107236A (en) * | 1990-07-16 | 1992-04-21 | General Electric Company | Molded case circuit breaker trip-to-test button and auxiliary switch interface |
JP2719436B2 (ja) | 1990-08-14 | 1998-02-25 | 松下電工株式会社 | 遮断器の不足電圧引外装置 |
US5343179A (en) * | 1993-01-29 | 1994-08-30 | Eaton Corporation | Miniaturized solenoid operated trip device |
EP0813219B1 (de) * | 1996-06-10 | 2001-11-28 | Siemens Aktiengesellschaft | Unterspannungsauslöser |
FR2757309B1 (fr) * | 1996-12-13 | 1999-01-29 | Schneider Electric Sa | Bloc de declenchement selectif pour un disjoncteur multipolaire |
DE19716380C1 (de) * | 1997-04-18 | 1998-10-08 | Siemens Ag | Elektromagnetisches Schaltgerät |
FR2799573B1 (fr) * | 1999-10-11 | 2001-12-14 | Schneider Electric Ind Sa | Mecanisme de commande de disjoncteur |
US20100078300A1 (en) * | 2005-08-10 | 2010-04-01 | Siemens Aktiengesellschaft | Circuit Breaker |
US7570139B2 (en) * | 2007-04-05 | 2009-08-04 | Eaton Corporation | Electrical switching apparatus, and trip actuator assembly and reset assembly therefor |
-
2009
- 2009-02-05 DE DE102009007586A patent/DE102009007586A1/de not_active Ceased
-
2010
- 2010-01-22 EP EP10706133.5A patent/EP2394286B1/de active Active
- 2010-01-22 US US13/145,619 patent/US8547190B2/en active Active
- 2010-01-22 WO PCT/DE2010/000061 patent/WO2010088875A1/de active Application Filing
- 2010-01-22 CN CN201080006765.6A patent/CN102308355B/zh active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2010088875A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2010088875A1 (de) | 2010-08-12 |
CN102308355B (zh) | 2014-10-22 |
EP2394286B1 (de) | 2015-11-11 |
DE102009007586A1 (de) | 2010-08-19 |
US8547190B2 (en) | 2013-10-01 |
US20120018287A1 (en) | 2012-01-26 |
CN102308355A (zh) | 2012-01-04 |
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