EP1164605A2 - Spannvorrichtung für einen Federspeicher eines Leistungsschalters - Google Patents
Spannvorrichtung für einen Federspeicher eines Leistungsschalters Download PDFInfo
- Publication number
- EP1164605A2 EP1164605A2 EP01250192A EP01250192A EP1164605A2 EP 1164605 A2 EP1164605 A2 EP 1164605A2 EP 01250192 A EP01250192 A EP 01250192A EP 01250192 A EP01250192 A EP 01250192A EP 1164605 A2 EP1164605 A2 EP 1164605A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cam
- spring
- lever
- lever system
- cam disc
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—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
- H01H3/3005—Charging means
- H01H3/3015—Charging means using cam devices
Definitions
- the invention is in the field of electrical switches and is in the constructive design of one in energy transmission networks the circuit breaker used, the one with a spring-loaded drive for actuating contacts is equipped.
- the associated spring accumulator can be tensioned via a tensioning device and can be latched via a separate switch lock.
- a separate switch lock ensures a quick and trouble-free release of the storage forces of the spring-loaded mechanism.
- the tensioning device used for the spring accumulator has a cam disk, a lever system and a catching device, the lever system being formed by a roller lever carrying a scanning roller and a tensioning lever articulated on the spring accumulator, which are connected by means of a coupling member.
- the safety gear has a pin arranged on the cam disc and a stop formed on the roller lever.
- the spring accumulator is tensioned by coupling the cam disk and the lever system by means of the scanning roller interacting with the circumferential edge of the cam disk and the cam disk being rotatable by a first angle from an initial position by means of an electromotive drive device.
- the drive device can be coupled to a clamping shaft which is fixedly arranged in the pivot point of the cam disk.
- the cam disk and the lever system are decoupled during a latching phase of the spring accumulator following the tensioning phase.
- the cam disc which rotates a second angle during the latching phase, is stopped in its initial position by the pin running against the stop.
- the spring mechanism can be released by opening the separate key switch. During a relaxation phase of the spring accumulator triggered thereby, the cam disc and the safety gear are decoupled. (EP 0 089 463 B1).
- a circuit breaker is also known per se, in which the electromotive drive device - the one with the The fulcrum of the cam is coupled to the fixed shaft is - depending on the position of the cam during different phases of the movement the tensioning device is controllable.
- the drive device at the end of the tensioning phase of the spring accumulator - due to a rotation of the cam from its initial position by a first angle - turned off and during the Relaxation phase of the spring accumulator - during which the cam disc takes its starting position - switched on again.
- this object is achieved in that the sum of the first angle and the second angle by one Differential angle of at least 5 ° is less than 360 ° and that the lever system can be coupled to the cam disc in this way is that the cam after decoupling from cam and safety gear under the force of the unlocked spring accumulator by the difference angle in their Starting position is rotatable.
- Such a configuration ensures that the cam disk cannot be rotated to its initial position during the latching phase - although the drive device is switched off at the end of the tensioning phase - due to the after-acting torques, and the drive device can therefore be switched on again prematurely.
- the cam plate assumes a defined position before returning to its starting position, in order to keep it in a defined manner during the relaxation phase of the spring accumulator to be able to bring their starting position.
- the difference angle required for this should be more than 5 ° for tolerance reasons and is optimally between 10 ° and 30 °.
- the new clamping device is particularly suitable for low-voltage circuit breakers in which the cam disk can be rotated by means of an electromotive drive device.
- a practical design of the new clamping device provides that the lever system carries a scanning roller Roller lever and a two-armed articulated on the spring mechanism Has tensioning lever that by means of a coupling member are connected, and that the safety gear one of the cam has associated projection that of a Coupling link trained hook-like extension is.
- the projection can be seen as a on the cam trained stop pin or stop cam his.
- the projection can also be formed on the tension shaft his.
- the cam disc can run out limited to a predetermined second angle and thus a sufficiently large difference angle to the starting position be ensured. Turns during the relaxation phase the cam disc under the influence of the force of the spring accumulator only after the cam and the Safety gear are decoupled. Destruction or unwanted Wear of the safety gear is safe prevented.
- a safety gear that has a brake spring.
- the Brake spring is on a section of the peripheral edge slidable along the cam disc and with the lever system can be coupled such that the braking force of the brake spring is dependent is changeable from the position of the lever system.
- the brake spring can be designed as a single-arm spiral spring its free end assigned to the cam and has an angled end leg. The angled one End leg can be supported on a bolt, that connects the tension lever and the coupling link.
- a safety catch having a brake spring for stopping the cam disc has during the latching phase the advantage that they keep turning the cam under the force of an error at the end of the tensioning phase drive device not allowed without that parts of the tensioning device or the drive device be destroyed.
- Two embodiments of the new clamping device in each are four different phases of their movement shown in Figures 1 to 8.
- Figures 1 to 4 a first clamping device in which the Safety gear a stop cam formed on the cam has that of a formed on the coupling member hook-like extension is reachable, and Figures 5 to 8, a second clamping device in which the Safety gear has a single-arm spiral spring that on a portion of the circumferential edge of the cam is slidable along.
- the embodiment of the tensioning device according to FIG. 1 to 4 has a cam 1, a lever system 2 and one Safety gear 3, wherein the lever system 2 by a a scanning roller 4 carrying roller lever 5 and one on the spring accumulator 6 articulated clamping lever 7 is formed, which means a coupling member 8 are connected.
- the roller lever 5 is on a first bearing pin 9 and the clamping lever 7 a second bearing pin 10 rotatably arranged.
- the roller lever 5 and the coupling member 8 by means of a first Bolt 11 and the clamping lever 7 and the coupling member 8 by means of a second bolt 12 connected.
- the position of the coupling link 8 is thus on the one hand from the position of the roller lever 5 and on the other hand from the position of the clamping lever 7 dependent.
- the clamping lever 7 as a two-armed lever formed, the one arm 13 on the coupling member 8 and the other arm 14 is hinged to the spring 6.
- the cam 1 is fixed on a tension shaft 15, the by means of a not shown in the drawing electromotive drive device rotatable clockwise is.
- the cam 1 and the lever system 2 are for Transmission of the driving force of the drive device or the spring force of the spring accumulator 6, which counteracts it, as soon as the scanning roller 4 carried by the roller lever 5 abuts the peripheral edge 16 of the cam disc 1.
- a cam disk 17 is arranged on the tensioning shaft 15, by means of which a position switch 18 can be actuated.
- a position switch 18 By actuating the position switch 18 through the cam disk 17 depending on the position of the tensioning shaft 15 or the cam disc 1 firmly connected to it can Drive device ready to be switched on or not ready to be switched on be switched.
- the safety gear 3 has a Stop cam formed on the cam 1 projection 19 and a hook-like formed on the coupling member 8 Extension 20 on.
- Figure 1 shows the tensioning device at the beginning of the tensioning phase.
- the cam 1 is in your Starting position and the scanning roller carried by the roller lever 5 4 lies on the peripheral edge 16 of the cam disk 1 on.
- the lever system 2 is in a first position 21, in which the spring accumulator 6 is completely relaxed.
- the position switch 18 is open, causing the drive device is switched on.
- the cam 1 and the formed from projection 19 and hook-like extension 20 Safety gear 3 are decoupled because of the projection 19 not from the hook-like extension 20 of the coupling element 8 is attacked. - If the drive device is switched on, so begins the coupled with the drive device Tension shaft 15 and thus the cam plate 1 clockwise to turn.
- the clamping device at the end of the clamping phase shows, the cam 1 with respect to its starting position rotated by a first angle ⁇ .
- the scanning roller 4 lies just before a recessed area 22 of the revolving area Edge of the cam disc on cam disc 1.
- the Lever system 2 is in a second position 23, at the spring accumulator 6 is fully tensioned.
- the cam disc 17 runs against the movable contact 24 of the position switch 18, whereby the position switch 18 is closed becomes. When the position switch is closed, the drive device is switched off and not ready to switch on.
- the cam is after a rotation by one second angle ⁇ , which is less than the difference between 360 ° and the first angle ⁇ is stopped by the fact that the projection 19 against the hook-like behind it Extension 20 is running.
- the position switch 18 remains here closed by means of the adjacent cam disk 17, so that a premature restart of the drive device is prevented.
- the new clamping device thus ensures reproducible Starting position of the cam, regardless of one fluctuating remaining torque at the end of the tensioning phase switched off electric motor drive device.
- the second embodiment of the tensioning device according to the figures 5 to 8 is with respect to the cam 25 and the lever system 26 and with regard to the coupling of the drive device to the tension shaft 15 and the coupling of the lever system 26 formed on the spring accumulator 6 in the same way as the tensioning device according to Figures 1 to 4.
- a brake spring 28 is used in phases is in operative connection with the second bolt 12.
- the brake spring 28 is designed as a single-arm spiral spring for this purpose at its free end 29 an angled end leg 30 having.
- the brake spring 28 projects with the free end 29 in the orbit 31 of the cam 25 and on the other hand, the second bolt 12 in one, the second Position 23 of the lever system 26 corresponding end position block the travel of the brake spring 28.
- FIG. 5 shows the tensioning device at the beginning of the tensioning phase.
- the cam 25 and the safety gear 27 decouples because the brake spring 28 is not on the circumferential edge 16 of the cam 25 is present.
- the circumferential edge reaches the tensioning phase (see FIG. 6) 16 of the cam plate 25 in contact with the free end 29 of the Brake spring 28.
- the cam is initially slightly slowed down.
- the angled end leg 30 is the brake spring 28 at the end of the latching phase on the second bolt 12 supported like a bridge. This makes the braking force Brake spring 28 increased such that the brake spring 28 like a stop acts and the cam disc 25 stops.
- - According to Figure 8 becomes the second during the relaxation phase Bolt 12 - due to the movement of the lever system 26 under the force of the spring accumulator 6 - from the effective range of the angled end leg 30 of the brake spring 28 pivoted out before the cam 25 by renewed Coupling with the lever system 26 by the third angle ⁇ ( Difference angle) until it is turned to its starting position.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
Das Spannen des Federspeichers erfolgt, indem während einer Spannphase die Kurvenscheibe und das Hebelsystem mittels der mit der umlaufenden Kante der Kurvenscheibe zusammenwirkenden Abtastrolle gekoppelt sind und die Kurvenscheibe mittels einer elektromotorischen Antriebsvorrichtung aus einer Ausgangslage um einen ersten Winkel drehbar ist. Hierbei ist die Antriebsvorrichtung mit einer im Drehpunkt der Kurvenscheibe fest angeordneten Spannwelle koppelbar. Während einer sich an die Spannphase anschließenden Verklinkungsphase des Federspeichers sind die Kurvenscheibe und das Hebelsystem entkoppelt. Die sich während der Verklinkungsphase um einen zweiten Winkel weiterdrehende Kurvenscheibe wird dadurch in ihrer Ausgangslage stillgesetzt, dass der Stift gegen den Anschlag läuft. Durch Öffnung des separaten Schaltschlosses ist der Federspeicher freigebbar. Während einer dadurch ausgelösten Entspannungsphase des Federspeichers werden die Kurvenscheibe und die Fangvorrichtung entkoppelt. (EP 0 089 463 B1).
Besonders geeignet ist die neue Spannvorrichtung für Niederspannungs-Leistungsschalter, bei denen die Kurvenscheibe mittels einer elektromotorischen Antriebsvorrichtung drehbar ist.
Claims (4)
- Spannvorrichtung für einen Federspeicher (6) eines Leistungsschalters, mit einer Kurvenscheibe (1, 25), einem Hebelsystem (2, 26) und einer Fangvorrichtung (3, 27),bei der während einer Spannphase des Federspeichers (6) die Kurvenscheibe (1, 25) und das Hebelsystems (2, 26) mittels einer mit der umlaufenden Kante (16) der Kurvenscheibe (1, 25) zusammenwirkenden Abtastrolle (4) gekoppelt sind und die Kurvenscheibe (1, 25) mittels einer Antriebsvorrichtung aus einer Ausgangslage um einen ersten Winkel(α) drehbar ist,bei der während einer Verklinkungsphase des Federspeichers (6) die Kurvenscheibe (1, 25) und das Hebelsystem (2, 26) entkoppelt sind und die sich um einen zweiten Winkel (β) weiterdrehende Kurvenscheibe (1, 25) mittels der Fangvorrichtung (3, 27) stillsetzbar ist undbei der während einer Entspannungsphase des Federspeichers (6) die Kurvenscheibe (1, 25) und die Fangvorrichtung (3, 27) entkoppelbar sind,dass die Summe des ersten Winkels (α) und des zweiten Winkels (β) um einen Differenzwinkel (γ) kleiner als 360° ist unddass das Hebelsystem (2, 26) derart mit der Kurvenscheibe (1, 25) koppelbar ist, dass die Kurvenscheibe nach der Entkopplung von Kurvenscheibe (1, 25) und Fangvorrichtung (3, 27) unter der Krafteinwirkung des freigeschalteten Federspeichers (6) um den Differenzwinkel (γ) in ihre Ausgangslage drehbar ist.
- Spannvorrichtung nach Anspruch 1,
dadurch gekennzeichnet,dass das Hebelsystem (2) einen die Abtastrolle (4) tragenden Rollenhebel (5) und einen am Federspeicher (6) angelenkten zweiarmigen Spannhebel (7) aufweist, die mittels eines Koppelgliedes (8) verbunden sind, unddass die Fangvorrichtung (3) einen der Kurvenscheibe (1) zugeordneten Vorsprung (19) aufweist, der von einem am Koppelglied (8) ausgebildeten hakenartigen Fortsatz (20) hintergreifbar ist. - Spannvorrichtung nach Anspruch 1
dadurch gekennzeichnet,dass das Hebelsystem (26) einen die Abtastrolle (4) tragenden Rollenhebel (5) und einen am Federspeicher (6) angelenkten zweiarmigen Spannhebel (7) aufweist, die mittels eines Koppelgliedes (32) verbunden sind, unddass die Fangvorrichtung (27) eine Bremsfeder (28) aufweist, die an einem Teilabschnitt der umlaufenden Kante (16) der Kurvenscheibe (25) entlang gleitbar ist und die mit dem Hebelsystem (26) derart koppelbar ist, dass die Bremskraft der Bremsfeder (28) in Abhängigkeit von der Lage des Hebelsystems (26) änderbar ist. - Spannvorrichtung nach Anspruch 3,
dadurch gekennzeichnet,dass die Bremsfeder (28) als einarmige Biegefeder ausgebildet ist, deren freies Ende (29) der Kurvenscheibe (25) zugeordnet ist und einen abgewinkelten Endschenkel (30) aufweist,wobei der abgewinkelte Endschenkel (30) an einem Bolzen (12) abstützbar ist, der den Spannhebel (7) und das Koppelglied (32) verbindet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10029123 | 2000-06-14 | ||
DE2000129123 DE10029123C2 (de) | 2000-06-14 | 2000-06-14 | Spannvorrichtung für einen Federspeicher eines Leistungsschalters |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1164605A2 true EP1164605A2 (de) | 2001-12-19 |
EP1164605A3 EP1164605A3 (de) | 2004-01-21 |
EP1164605B1 EP1164605B1 (de) | 2006-10-18 |
Family
ID=7645584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20010250192 Expired - Lifetime EP1164605B1 (de) | 2000-06-14 | 2001-05-30 | Spannvorrichtung für einen Federspeicher eines Leistungsschalters |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1164605B1 (de) |
DE (2) | DE10029123C2 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1357567A2 (de) * | 2002-04-26 | 2003-10-29 | Siemens Aktiengesellschaft | Antriebsvorrichtung für einen Federspeicher eines elektrischen Schalters |
EP1398540A2 (de) | 2002-09-12 | 2004-03-17 | Sharp Kabushiki Kaisha | Vorrichtung zur Steuerung der Drehbewegung eines Nockens |
CN102194580A (zh) * | 2010-03-18 | 2011-09-21 | 西门子公司 | 驱动设备以及带有此类驱动设备的电气开关 |
US10269521B2 (en) | 2015-08-04 | 2019-04-23 | Zhejiang Chint Electrics Co., Ltd | Mounting structure for energy storage assembly of circuit breaker |
CN106449206B (zh) * | 2015-08-04 | 2019-05-28 | 浙江正泰电器股份有限公司 | 断路器能量存储组件的安装结构 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20209550U1 (de) * | 2002-06-14 | 2003-11-27 | Siemens Ag | Vorrichtung zum Stillsetzen einer Kurvenscheibe |
CN106449205B (zh) * | 2015-08-04 | 2019-01-04 | 浙江正泰电器股份有限公司 | 断路器能量存储组件 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0089463A2 (de) * | 1982-01-29 | 1983-09-28 | Mitsubishi Denki Kabushiki Kaisha | Freier Schutzschalter |
EP0150756A2 (de) * | 1984-01-30 | 1985-08-07 | Merlin Gerin | Vorrichtung zur Steuerung eines elektrischen Leistungsschalters |
-
2000
- 2000-06-14 DE DE2000129123 patent/DE10029123C2/de not_active Expired - Fee Related
-
2001
- 2001-05-30 DE DE50111249T patent/DE50111249D1/de not_active Expired - Lifetime
- 2001-05-30 EP EP20010250192 patent/EP1164605B1/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0089463A2 (de) * | 1982-01-29 | 1983-09-28 | Mitsubishi Denki Kabushiki Kaisha | Freier Schutzschalter |
EP0150756A2 (de) * | 1984-01-30 | 1985-08-07 | Merlin Gerin | Vorrichtung zur Steuerung eines elektrischen Leistungsschalters |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1357567A2 (de) * | 2002-04-26 | 2003-10-29 | Siemens Aktiengesellschaft | Antriebsvorrichtung für einen Federspeicher eines elektrischen Schalters |
EP1357567A3 (de) * | 2002-04-26 | 2004-04-14 | Siemens Aktiengesellschaft | Antriebsvorrichtung für einen Federspeicher eines elektrischen Schalters |
EP1398540A2 (de) | 2002-09-12 | 2004-03-17 | Sharp Kabushiki Kaisha | Vorrichtung zur Steuerung der Drehbewegung eines Nockens |
EP1398540A3 (de) * | 2002-09-12 | 2007-09-26 | Sharp Kabushiki Kaisha | Vorrichtung zur Steuerung der Drehbewegung eines Nockens |
CN102194580A (zh) * | 2010-03-18 | 2011-09-21 | 西门子公司 | 驱动设备以及带有此类驱动设备的电气开关 |
US8461469B2 (en) | 2010-03-18 | 2013-06-11 | Siemens Aktiengesellschaft | Drive apparatus for a tensioning shaft of a spring energy drive of an electric switch and electric switch with such a drive apparatus |
CN102194580B (zh) * | 2010-03-18 | 2014-06-04 | 西门子公司 | 驱动设备以及带有此类驱动设备的电气开关 |
US10269521B2 (en) | 2015-08-04 | 2019-04-23 | Zhejiang Chint Electrics Co., Ltd | Mounting structure for energy storage assembly of circuit breaker |
CN106449206B (zh) * | 2015-08-04 | 2019-05-28 | 浙江正泰电器股份有限公司 | 断路器能量存储组件的安装结构 |
Also Published As
Publication number | Publication date |
---|---|
EP1164605A3 (de) | 2004-01-21 |
DE50111249D1 (de) | 2006-11-30 |
DE10029123A1 (de) | 2002-01-03 |
DE10029123C2 (de) | 2002-10-31 |
EP1164605B1 (de) | 2006-10-18 |
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