EP1107273B1 - Leistungsschalter mit strombegrenzender Öffnung eines Schaltkontaktes - Google Patents
Leistungsschalter mit strombegrenzender Öffnung eines Schaltkontaktes Download PDFInfo
- Publication number
- EP1107273B1 EP1107273B1 EP00250410A EP00250410A EP1107273B1 EP 1107273 B1 EP1107273 B1 EP 1107273B1 EP 00250410 A EP00250410 A EP 00250410A EP 00250410 A EP00250410 A EP 00250410A EP 1107273 B1 EP1107273 B1 EP 1107273B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- supporting member
- lever
- main
- catch
- support member
- 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 - Lifetime
Links
- 230000009471 action Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 210000000629 knee joint Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241001295925 Gegenes Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013270 controlled release Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
- H01H3/3031—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
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/505—Latching devices between operating and release mechanism
-
- 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
- H01H2071/507—Latching devices between operating and release mechanism being collapsible, e.g. yielding elastically, when the opening force is higher than a predetermined value
-
- 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
- H01H2071/508—Latching devices between operating and release mechanism with serial latches, e.g. primary latch latched by secondary latch for requiring a smaller trip force
Definitions
- a circuit breaker with these features is through the US 4,760,224 A, according to the preamble of claim 1, has become known.
- the support organ is as a lever formed around the same pivot bearing as the main ratchet lever is movable. If the switch contact in closed state exposed to a very high current, such as if it occurs in particular in the event of a short circuit, one occurs correspondingly high opening force by the latching device is recorded. To limit the current To achieve opening of the switch contact, it is necessary the latching device as soon as possible loosen so that the short-circuit current rises a switching arc is formed and in cooperation with one Arc extinguishing chamber the circuit before reaching the peak value the short-circuit current is interrupted.
- the invention has for its object the circuit breaker of the type mentioned so that both mentioned Functions, i.e. the one controlled by a trigger and the automatic current-limiting tripping with as little as possible Delay can take place.
- the arrangement of the pivot bearing of the support member on Main ratchet lever is the possibility of a smaller design of the support body, which is consequently a lesser Has mass and can be accelerated faster. This reduces the delay in tripping with a current limiting Tripping. Furthermore, the support member due to the attachment on the main ratchet lever with a controlled release in the opening direction moved. This enables even with controlled Triggers an advantageously low trigger delay.
- the support member In the context of the invention can be with the pawl cooperating support roller of the support member in a lower Distance from the pivot of the main ratchet lever than the pivot bearing of the support member, the support member has about a third of the length of the main ratchet lever.
- Figures 1, 2, 3 and 4 show as part of a low-voltage circuit breaker Parts of a device for Closing and opening of switching contacts and a latching device in different operating states.
- Figure 1 illustrates the state when open Switch contacts and operationally latched latching device.
- FIG 2 is the on state shown.
- Figure 3 the current-limiting automatic Opening of the switch contacts shown while in the figure 4 a transition stage shortly after the start of a controlled one Tripping the latching device is shown.
- the switching contacts 1 of a low-voltage circuit breaker with a device 2 in Connection, an energy storage 3 and a toggle chain 4 has.
- the toggle chain and one with this in Connected switching shaft 5 for actuating the switching contacts 1 are indicated schematically because of structural details are not needed to understand the invention. However, it is in this context on the representations in the above-mentioned US 4,760,224 A or in DE 40 22 078 A1 referenced.
- the arrangement shown in FIG. 1 also includes one Latching device 6, which is a controllable support member 7 in the form of a half-wave, a main ratchet lever 10, has a support member 11 and a pawl 12. in this connection are the controllable support member 7, the main pawl lever 10 and the pawl 12 around fixed pivot bearings 13, 14 or 15 movable. In contrast there is another Swivel bearing 16 of the lever-like support member 11 the main ratchet lever 10, and relatively close to it upper end opposite the pivot bearing, which with the controllable support member 7 cooperates.
- a coupling rod 22 connects the pawl 12 with one Knee joint 23 of the toggle chain 4 of the device 2.
- the order a bearing 24 on the pawl 12 movable coupling rod 22 thus forms a guide for the toggle lever chain 4.
- the toggle chain is 4 erected by means of the energy store 3 and after has been moved to the left, causing the switch-off shaft 5 in a clockwise direction turned and the switch contacts 1 were closed.
- the coupling rod 22 has this process under pivoting participated in their depository 24.
- the relative Position of the controllable support member 7, the main pawl lever 10 and the pawl 12 remained unchanged.
- controllable support member 7 and the main jack lever 10 in their latched rest position according to Figures 1 and 2. Accordingly these parts are not subject to wear and tear in the event of current limiting Openings of the switch contacts 1 and keep the desired ones Properties, especially a low and constant Operating force.
- Illustrated in this context 4 shows the controlled opening of the switching contacts 1 by actuating the controllable support member 7. Is shown in this figure an intermediate state, which is a short time after a rotation of the controllable support member 7 counterclockwise results.
- the invention allows a reliable current limiting Opening of switching contacts, the opening required force and accordingly the amount of one such contact opening current by a suitable Choice of the angle of attack of the work surface 20 on the Support roller 21 and the strength of the springs 18 and other mechanical Parameters within the desired limits can be selected.
- the choice of these angles and other parameters is independent of the controllable latching by means of the support member 7.
- the arrangement shown allows optional circuit breakers with or without current-limiting contact opening manufacture. For example, the function of current limiting Opening of the switch contacts 1 is suppressed be used that very strong springs 18 or the support member 11 is blocked. A corresponding change can therefore if necessary, only at the location of a circuit breaker respectively.
Landscapes
- Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Description
- eine Vorrichtung zum Schließen und Öffnen des Schaltkontaktes,
- eine lösbare Verklinkungseinrichtung zur willkürlichen sowie
zur selbsttätigen strombegrenzenden Öffnung des
Schaltkontaktes,
- - wobei die Verklinkungseinrichtung eine Sperrklinke und ein mit diesem zusammenwirkendes Stützorgan aufweist, das gegen die Wirkung einer Haltekraft bewegbar geführt ist und im Ruhezustand unter der Wirkung der Haltekraft an einem Anschlag anliegt, derart, daß das Stützorgan aufgrund einer vom Schaltkontakt ausgehenden Kraft bewegbar und die Sperrklinke freigebbar ist,
- ein schwenkbar gelagerter Hauptklinkenhebel und ein den Hauptklinkenhebel abstützendes, durch einen Auslöser steuerbares Stützorgan,
- eine Mitnehmeranordnung zur zwangsläufigen Betätigung des Stützorgans bei einer Freigabe des Hauptklinkenhebels durch das steuerbare Stützorgan.
- das hebelartig ausgebildete Stützorgan ist um ein am Hauptklinkenhebel angeordnetes Schwenklager schwenkbar angebracht, und
- das Stützorgan ist etwa parallel zur Längserstreckung des Hauptklinkenhebels angeordnet.
Claims (2)
- Leistungsschalter mit einem Schaltkontakt sowie mit folgenden Merkmalen:gekennzeichnet durch folgende weitere Merkmale :eine Vorrichtung (2) zum Schließen und Öffnen des Schaltkontaktes (1),eine lösbare Verklinkungseinrichtung (6) zur willkürlichen sowie zur selbsttätigen strombegrenzenden Öffnung des Schaltkontaktes (1),- wobei die Verklinkungseinrichtung (6) eine Sperrklinke (12) und ein mit diesem zusammenwirkendes Stützorgan (11) aufweist, das gegen die Wirkung einer Haltekraft bewegbar geführt ist und im Ruhezustand unter der Wirkung der Haltekraft an einem Anschlag (17) anliegt, derart, daß das Stützorgan (11) aufgrund einer vom Schaltkontakt (1) ausgehenden Kraft bewegbar und die Sperrklinke (12) freigebbar ist,ein schwenkbar gelagerter Hauptklinkenhebel (10) und ein den Hauptklinkenhebel (10) abstützendes, durch einen Auslöser steuerbares Stützorgan (7),eine Mitnehmeranordnung zur zwangsläufigen Betätigung des mit der Sperrklinke zusammenwirkende Stützorgans (11) bei einer Freigabe des Hauptklinkenhebels (10) durch das steuerbare Stützorgan (7),das hebelartig ausgebildete mit der Sperrklinke zusammenwirkende Stützorgan (11) ist um ein am Hauptklinkenhebel (10) angeordnetes Schwenklager (16) schwenkbar angebracht,das mit der Sperrklinke zusammenwirkende Stutzorgan (11) ist, wenn die Sperrklinke gesperrt ist, etwa parallel zur Längserstreckung des Hauptklinkenhebels (10) angeordnet.
- Leistungsschalter nach Anspruch 1,
dadurch gekennzeichnet, d a ß
sich eine mit der Sperrklinke (12) zusammenwirkende Stützrolle (21) des Stützorgans (11) in einer geringeren Entfernung vom Schwenklager (14) des Hauptklinkenhebels (10) befindet als das Schwenklager (16) des Stützorgans (11) und daß das Stützorgan (11) etwa ein Drittel der Länge des Hauptklinkenhebels (10) aufweist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29921347U DE29921347U1 (de) | 1999-11-30 | 1999-11-30 | Leistungsschalter mit strombegrenzender Öffnung eines Schaltkontaktes |
| DE29921347U | 1999-11-30 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1107273A2 EP1107273A2 (de) | 2001-06-13 |
| EP1107273A3 EP1107273A3 (de) | 2002-12-18 |
| EP1107273B1 true EP1107273B1 (de) | 2004-01-28 |
Family
ID=8082524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00250410A Expired - Lifetime EP1107273B1 (de) | 1999-11-30 | 2000-11-29 | Leistungsschalter mit strombegrenzender Öffnung eines Schaltkontaktes |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1107273B1 (de) |
| DE (2) | DE29921347U1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7449653B2 (en) * | 2007-03-29 | 2008-11-11 | Eaton Corporation | Positive resetting close latch for closing electrical switching apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61224227A (ja) * | 1985-03-28 | 1986-10-04 | 三菱電機株式会社 | 気中しや断器 |
| DE4022078A1 (de) * | 1990-07-10 | 1992-01-16 | Siemens Ag | Leistungsschalter mit unabhaengiger verklinkungseinrichtung des bewegbaren schaltkontaktes |
-
1999
- 1999-11-30 DE DE29921347U patent/DE29921347U1/de not_active Expired - Lifetime
-
2000
- 2000-11-29 EP EP00250410A patent/EP1107273B1/de not_active Expired - Lifetime
- 2000-11-29 DE DE50005135T patent/DE50005135D1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE29921347U1 (de) | 2001-04-05 |
| DE50005135D1 (de) | 2004-03-04 |
| EP1107273A2 (de) | 2001-06-13 |
| EP1107273A3 (de) | 2002-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2721162C2 (de) | Überstromschutzschalter mit Ein- und Ausschaltwippe | |
| DE1638154C3 (de) | Selbstschalter | |
| EP2597669B1 (de) | Schaltmechanismus für ein elektrisches Schaltgerät sowie elektrisches Schaltgerät | |
| EP0412953B1 (de) | Leitungsschutzschalter | |
| DE1933576C2 (de) | Strombegrenzungsschalter | |
| DE10058068A1 (de) | Thermisches Überlastrelais | |
| DE2504954B2 (de) | Mechanisches sprungwerk, insbesondere fuer kleine hochleistungs-selbstschalter | |
| DE102014110757B4 (de) | Schaltgerät | |
| CH594279A5 (en) | Toggle drive unit for medium voltage switch - has symmetrical double spring which reduces bearing load and gives compact construction | |
| EP1107273B1 (de) | Leistungsschalter mit strombegrenzender Öffnung eines Schaltkontaktes | |
| DE3212474C2 (de) | Überstromschutzschalter | |
| DE1072711B (de) | Uberstnojnjausschalter, der durch einen Schnappvorgang ein- und ausgeschaltet wird | |
| DE102006059307B3 (de) | Elektrisches Schaltgerät | |
| DE3105524C2 (de) | Leistungsschalter | |
| EP1005060B1 (de) | Unterspannungsauslöser | |
| DE4339425B4 (de) | Schaltschloß für einen Fehlerstromschutzschalter | |
| EP1328956A1 (de) | Strombegrenzender niederspannungs-leistungsschalter | |
| DE102011079593B4 (de) | Elektromechanisches Schutzschaltgerät | |
| DE69011387T2 (de) | Elektrischer Schutzschalter. | |
| EP1231691B1 (de) | Auslösevorrichtung für einen ausfahrbaren Leistungsschalter | |
| DE4008506C2 (de) | Verfahren zur Ansteuerung der Schaltbewegung eines elektrischen Schalters und elektrischer Schalter | |
| DE3840482A1 (de) | Elektrischer selbstschalter | |
| DE10202229B4 (de) | Selbstschalter mit vereinfachtem Aufbau | |
| EP1709660A1 (de) | Elektromechanischer schalter | |
| DE4026779C2 (de) | Kontaktsystem für Leistungsschalter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| RIC1 | Information provided on ipc code assigned before grant |
Free format text: 7H 01H 71/50 A |
|
| 17P | Request for examination filed |
Effective date: 20030120 |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| AKX | Designation fees paid |
Designated state(s): DE FR IT |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR IT |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
| REF | Corresponds to: |
Ref document number: 50005135 Country of ref document: DE Date of ref document: 20040304 Kind code of ref document: P |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
| ET | Fr: translation filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20041029 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20091203 Year of fee payment: 10 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20100118 Year of fee payment: 10 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20101125 Year of fee payment: 11 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20110801 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50005135 Country of ref document: DE Effective date: 20110601 Ref country code: DE Ref legal event code: R119 Ref document number: 50005135 Country of ref document: DE Effective date: 20110531 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110531 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101130 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20111129 |