EP1112585B1 - Low voltage switching device with bimetal trip - Google Patents
Low voltage switching device with bimetal trip Download PDFInfo
- Publication number
- EP1112585B1 EP1112585B1 EP00926810A EP00926810A EP1112585B1 EP 1112585 B1 EP1112585 B1 EP 1112585B1 EP 00926810 A EP00926810 A EP 00926810A EP 00926810 A EP00926810 A EP 00926810A EP 1112585 B1 EP1112585 B1 EP 1112585B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching device
- bimetallic
- voltage switching
- assembly
- release
- 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
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Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
- H01H69/01—Apparatus or processes for the manufacture of emergency protective devices for calibrating or setting of devices to function under predetermined conditions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
- H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages
- H01H83/223—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages with bimetal elements
Definitions
- the invention relates to a low-voltage switching device with bimetallic release, in particular a motor protection switch or a circuit breaker.
- Such switching devices are manufacturer's side with regard to the bimetallic release to oak. It is the existing tolerances between the bimetals of individual phases between each other, between the bimetals and the tipping point the tripped latch system as well as with regard to a required To compensate for free travel of the bimetals.
- Such a bimetallic release and an associated latch system are described in detail in DE 42 02 049.
- the calibration procedure is generally carried out in such a way that metrological detection of the tripping paths of the bimetal assembly and the Tilting point of the latch system one of the bends of the bimetals to operable bridge system is adjusted to the effect that accordingly the aforementioned metrological recording punched for the Engagement of the bimetals are made to the extent that after the completion of the bimetallic assembly through the bridge system to the Bimetal release the above tolerances largely offset are.
- This process of balancing the bridge system will be described below marked with standard characters.
- the invention is therefore the object of the assembly of the Switching device resulting tolerances between bimetallic release and latch system off.
- FIGURE 1 is an inventive low-voltage schak réelle is shown.
- Fig. 1 is a switching device 1, a motor protection switch with a housing. 2 made of molding material, consisting of a lower housing part 21 and an upper Housing part 22, three access-side terminals 3, three opposite output side terminals and an interface 4 for a rotary handle for actuating the contact system of the switching device. 1 shown.
- a rectangular opening 23 is provided, which is to be closed by a protective cover 24, wherein latching means 25 are used. Through the opening 23 is the Bimetal release 5 accessible.
- the bimetallic release 5 Of the bimetallic release 5 are the free ends the bimetallic assembly 51 and the bridge system 52, consisting of the trigger bridge 521 cooperating with the bimetallic assembly 51 and the connection to a latch system of a non-visible drive system producing differential lever 522, see. If the bridge system 52 is not installed, are through the opening 23 by suitable mechanical probe the bends of the bimetallic assembly 51st and the tipping point of the latch system detected. Because of these measurements the corresponding recesses in the trip bar 521 for the engagement of the free ends of the bimetallic assembly 51 punched (standard). The thus calibrated bridge system 52 is thereon through the opening 23rd to complete the bimetallic release 5 and thus the switching device. 1 used. Subsequently, the protective cover 24 on the upper housing part 22 locked.
- the present invention is not limited to the embodiment described above but also includes all within the meaning of the invention equivalent embodiments.
- the invention Modify to the effect that, if required, the opening 23 and the lid 24 on the lower housing part 21 or both Housing parts 21, 22 is provided.
Description
Die Erfindung betrifft ein Niederspannungsschaltgerät mit Bimetallauslöser, insbesondere einen Motorschutzschalter oder einen Leistungsschalter.The invention relates to a low-voltage switching device with bimetallic release, in particular a motor protection switch or a circuit breaker.
Derartige Schaltgeräte sind herstellerseitig hinsichtlich des Bimetallauslösers zu eichen. Es sind die vorhandenen Toleranzen zwischen den Bimetallen der einzelnen Phasen untereinander, zwischen den Bimetallen und dem Kipppunkt des auszulösenden Klinkensystems sowie hinsichtlich eines erforderlichen Leerweges der Bimetalle auszugleichen. Ein derartiger Bimetallauslöser und ein zugehöriges Klinkensystem sind in der DE 42 02 049 ausführlich beschrieben. Der Eichvorgang wird im allgemeinen so vorgenommen, dass nach messtechnischer Erfassung der Auslösewege der Bimetallbaugruppe und des Kipppunktes des Klinkensystems ein von den Ausbiegungen der Bimetalle zu betätigendes Brückensystem dahingehend abgeglichen wird, dass entsprechend der vorgenannten messtechnischen Erfassung Ausstanzungen für den Eingriff der Bimetalle genau in dem Maße vorgenommen werden, dass nach der Komplettierung der Bimetallbaugruppe durch das Brückensystem zu dem Bimetallauslöser die vorgenannten Toleranzen weitestgehend ausgeglichen sind. Dieser Vorgang des Abgleichs des Brückensystems wird im nachfolgenden mit Stanzeichen bezeichnet. Beim Stanzeichen werden zwar die besagten Toleranzen ausgeglichen, jedoch birgt der Zusammenbau der gemäß US 5 909 164 A in einem unteren Gehäuseteil des Schaltgerätes zusammen mit dem Kontaktsystem und dem Antriebssystem lose gelagerten Bimetallbaugruppe, des Brückensystems und eines für die Halterung und Abdeckung dieser Teile erforderlichen oberen Gehäuseteils die nicht zu unterschätzende Gefahr in sich, dass neue Toleranzen zwischen der Bimetallgruppe, dem Brückensystem und dem Klinkensystem entstehen.Such switching devices are manufacturer's side with regard to the bimetallic release to oak. It is the existing tolerances between the bimetals of individual phases between each other, between the bimetals and the tipping point the tripped latch system as well as with regard to a required To compensate for free travel of the bimetals. Such a bimetallic release and an associated latch system are described in detail in DE 42 02 049. The calibration procedure is generally carried out in such a way that metrological detection of the tripping paths of the bimetal assembly and the Tilting point of the latch system one of the bends of the bimetals to operable bridge system is adjusted to the effect that accordingly the aforementioned metrological recording punched for the Engagement of the bimetals are made to the extent that after the completion of the bimetallic assembly through the bridge system to the Bimetal release the above tolerances largely offset are. This process of balancing the bridge system will be described below marked with standard characters. The Stanzeichen are the said Tolerances balanced, but the assembly of the according to US 5 909 164 A in a lower housing part of the switching device together with the contact system and the drive system loosely mounted bimetallic assembly, of the bridge system and one for the holder and cover of this Parts required upper housing part not to be underestimated Danger in itself, that new tolerances between the bimetallic group, the bridge system and the latch system arise.
Der Erfindung liegt daher die Aufgabe zugrunde, die beim Zusammenbau des Schaltgerätes entstehenden Toleranzen zwischen Bimetallauslöser und Klinkensystem auszuschalten.The invention is therefore the object of the assembly of the Switching device resulting tolerances between bimetallic release and latch system off.
Ausgehend von einem Niederspannungsschaltgerät der eingangs genannten Art wird die Aufgabe erfindungsgemäß durch die kennzeichnenden Merkmale des unabhängigen Anspruches gelöst. Durch die vorgesehene Öffnung im Gehäuse ist es nunmehr möglich, die Bimetallbaugruppe und das Klinkensystem im endgültig eingebauten Zustand zwecks Eichung des noch nicht eingebauten Brückensystems messtechnisch zu erfassen, danach das dementsprechend geeichte Brückensystem zu montieren und abschließend die Öffnung durch den Schutzdeckel zu verschließen. Beim Eichen des Brückensystems werden alle für den Bimetallauslöser maßgeblichen Toleranzen vorteilhaft über die gesamte Fertigungs- und Montagekette erfasst. Bei dem erfindungsgemäßen Schaltgerät ist nach dem Eichen gegenüber den Schaltgeräten nach dem Stand der Technik nur noch eine Baugruppe, nämlich das Brückensystem, einzubauen. Eine vorteilhafte Weiterbildung der Erfindung besteht darin, den Schutzdeckel auf dem Gehäuse rastend zu befestigen.Based on a low-voltage switching device of the aforementioned Art is the object of the invention by the characterizing features of the independent claim. Through the intended opening in the Housing, it is now possible, the bimetallic assembly and the latch system in the final installed state for the purpose of calibration of the not yet built-in bridge system to capture metrologically, then the accordingly calibrated bridge system to assemble and finally the Close the opening through the protective cover. When oaking the bridge system All relevant tolerances for the bimetallic release are advantageous recorded over the entire production and assembly chain. In the inventive Switchgear is after the oak opposite the switching devices according to the prior art, only one module, namely the Bridge system to install. An advantageous development of the invention is to secure the protective cover on the housing latching.
Weitere Vorteile der Erfindung ergeben sich aus dem folgenden Ausführungsbeispiel, wobei in der einzigen Figur 1 ein erfindungsgemäßes Niederspannungsschakgerät dargestellt ist. Further advantages of the invention will become apparent from the following embodiment, wherein in the single FIGURE 1 is an inventive low-voltage schakgerät is shown.
In Fig. 1 ist als Schaltgerät 1 ein Motorschutzschalter mit einem Gehäuse 2
aus Formstoff, bestehend aus einem unteren Gehäuseteil 21 und einem oberen
Gehäuseteil 22, drei zugangsseitigen Anschlussklemmen 3, drei gegenüberliegenden
abgangsseitigen Anschlussklemmen sowie einer Schnittstelle 4
für einen Drehgriff zur Betätigung des Kontaktsystems des Schaltgerätes 1
dargestellt. In dem oberen Gehäuseteil 22 ist frontseitig eine rechteckige Öffnung
23 vorgesehen, die durch einen Schutzdeckel 24 zu verschließen ist,
wobei Rastmittel 25 zur Anwendung kommen. Durch die Öffnung 23 ist der
Bimetallauslöser 5 zugänglich. Von dem Bimetallauslöser 5 sind die freien Enden
der Bimetallbaugruppe 51 sowie das Brückensystem 52, bestehend aus
der mit der Bimetallbaugruppe 51 zusammenwirkenden Auslösebrücke 521
und dem die Verbindung zu einem Klinkensystem eines nicht sichtbaren Antriebssystems
herstellenden Differentialhebel 522, zu sehen. Wenn das Brükkensystem
52 noch nicht eingebaut ist, werden über die Öffnung 23 durch geeignete
mechanische Messtaster die Ausbiegungen der Bimetallbaugruppe 51
und der Kipppunkt des Klinkensystems erfasst. Aufgrund dieser Messergebnisse
werden die entsprechenden Aussparungen in di0e Auslösebrücke 521
für den Eingriff der freien Enden der Bimetallbaugruppe 51 gestanzt (Stanzeichen).
Das so geeichte Brückensystem 52 wird darauf durch die Öffnung 23
zur Vervollständigung des Bimetallauslösers 5 und damit des Schaltgerätes 1
eingesetzt. Anschließend wird der Schutzdeckel 24 auf das obere Gehäuseteil
22 aufgerastet.In Fig. 1 is a
Die vorliegende Erfindung ist nicht auf die vorstehend beschriebenen Ausführungsform
beschränkt, sondern umfasst auch alle im Sinne der Erfindung
gleichwirkenden Ausführungsformen. So lässt sich die Erfindung beispielsweise
dahingehend abwandeln, dass bei entsprechendem Erfordernis die Öffnung
23 und der Deckel 24 an dem unteren Gehäuseteil 21 oder an beiden
Gehäuseteilen 21, 22 vorgesehen ist.The present invention is not limited to the embodiment described above
but also includes all within the meaning of the invention
equivalent embodiments. Thus, for example, the invention
Modify to the effect that, if required, the opening
23 and the lid 24 on the
Claims (2)
- Low-voltage switching device with a bimetallic release, containing an enclosure (2) composed of enclosure parts (21, 22), in which at least the bimetallic release (5) and a catch system, which can be released by this bimetallic release (5), are mounted, with the bimetallic release (5) having a bridge system (52), which can be calibrated, as a connecting element between its bimetallic assembly (51) and the catch system, characterized in that the enclosure (2) has an opening (23) which can be closed by a protective cover (24) and which ensures, when the switching device (1) is in the assembled state, measurement access to the bimetallic assembly (51) and to the catch system, as well as installation of the calibrated bridge system (52).
- Low-voltage switching device according to Claim 1, characterized in that the protective cover (24) can be connected to the rest of the enclosure (2) via latching means (25).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19916988 | 1999-04-15 | ||
| DE19916988A DE19916988A1 (en) | 1999-04-15 | 1999-04-15 | Low voltage switching device with bimetal release for e.g. motor protection switch or power switch has calibration bridge system positioned between bimetal assembly |
| PCT/EP2000/002997 WO2000063935A2 (en) | 1999-04-15 | 2000-04-05 | Low voltage switchgear with bimetallic actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1112585A2 EP1112585A2 (en) | 2001-07-04 |
| EP1112585B1 true EP1112585B1 (en) | 2004-06-09 |
Family
ID=7904636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00926810A Expired - Lifetime EP1112585B1 (en) | 1999-04-15 | 2000-04-05 | Low voltage switching device with bimetal trip |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6466115B1 (en) |
| EP (1) | EP1112585B1 (en) |
| CN (1) | CN1178257C (en) |
| DE (2) | DE19916988A1 (en) |
| WO (1) | WO2000063935A2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004084042A2 (en) * | 2003-03-17 | 2004-09-30 | Epostal Services, Inc. | Messaging and document management system and method |
| US7627640B2 (en) * | 2003-03-17 | 2009-12-01 | Epostal Services, Inc. | Messaging and document management system and method |
| DE102007054426B4 (en) * | 2006-11-24 | 2010-08-05 | Abb Ag | Switching chamber assembly and switching device |
| DE102010005345B4 (en) | 2010-01-21 | 2022-04-21 | Abb Schweiz Ag | Electrical switching device in modular design |
| EP2410554A1 (en) | 2010-07-22 | 2012-01-25 | Eaton Industries GmbH | Electric Switching Device |
| DE202015100926U1 (en) | 2015-02-26 | 2015-03-10 | Abb Technology Ag | Electrical switching device in modular design |
| CN109285735B (en) * | 2018-10-25 | 2023-11-21 | 嘉兴弘博电气有限公司 | Intelligent air switch with interconnection communication port bridging structure |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6132324A (en) * | 1984-07-20 | 1986-02-15 | 富士電機株式会社 | Internal accessory mounting structure of wiring breaker |
| US4698606A (en) * | 1986-06-20 | 1987-10-06 | Westinghouse Electric Corp. | Circuit breaker with adjustable thermal trip unit |
| US4870531A (en) * | 1988-08-15 | 1989-09-26 | General Electric Company | Circuit breaker with removable display and keypad |
| DE4202049C1 (en) * | 1992-01-27 | 1993-10-07 | Kloeckner Moeller Gmbh | Thermal trigger for electrical switchgear |
| DE4304772C1 (en) * | 1993-02-17 | 1994-05-19 | Kloeckner Moeller Gmbh | Switch mechanism for electric motor protection switch - has spring-biased pivoted wiper between knee-lever system and movable contact bridge carrier |
| AU706793B2 (en) * | 1996-12-31 | 1999-06-24 | Lg Industrial Systems Co. Ltd. | Separable circuit breaker |
| US6104273A (en) * | 1999-06-09 | 2000-08-15 | General Electric Company | Calibration assembly and process for use in a circuit protective device |
-
1999
- 1999-04-15 DE DE19916988A patent/DE19916988A1/en not_active Withdrawn
-
2000
- 2000-04-05 WO PCT/EP2000/002997 patent/WO2000063935A2/en active IP Right Grant
- 2000-04-05 US US09/719,798 patent/US6466115B1/en not_active Expired - Lifetime
- 2000-04-05 DE DE50006746T patent/DE50006746D1/en not_active Expired - Lifetime
- 2000-04-05 EP EP00926810A patent/EP1112585B1/en not_active Expired - Lifetime
- 2000-04-05 CN CNB008005591A patent/CN1178257C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1112585A2 (en) | 2001-07-04 |
| WO2000063935A2 (en) | 2000-10-26 |
| WO2000063935A3 (en) | 2001-04-12 |
| DE50006746D1 (en) | 2004-07-15 |
| DE19916988A1 (en) | 2000-10-19 |
| CN1178257C (en) | 2004-12-01 |
| CN1310855A (en) | 2001-08-29 |
| US6466115B1 (en) | 2002-10-15 |
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