EP0902453B1 - Vorrichtung zur Justierung eines thermischen Auslösers, insbesondere für einen Leitungsschutzschalter - Google Patents
Vorrichtung zur Justierung eines thermischen Auslösers, insbesondere für einen Leitungsschutzschalter Download PDFInfo
- Publication number
- EP0902453B1 EP0902453B1 EP98113767A EP98113767A EP0902453B1 EP 0902453 B1 EP0902453 B1 EP 0902453B1 EP 98113767 A EP98113767 A EP 98113767A EP 98113767 A EP98113767 A EP 98113767A EP 0902453 B1 EP0902453 B1 EP 0902453B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adjusting
- screw
- lever
- circuit breaker
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000001960 triggered effect Effects 0.000 abstract 1
- 230000002441 reversible effect Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H71/7427—Adjusting only the electrothermal 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
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H71/7427—Adjusting only the electrothermal mechanism
- H01H2071/7454—Adjusting only the electrothermal mechanism with adjustable axis of transmission lever between bimetal element and trip lever
Definitions
- the invention relates to a device according to the preamble of claim 1.
- Circuit breaker used to shut down a network in case of overcurrent or short-circuit current serve have a thermal for tripping in an overcurrent Trigger, which is usually designed as a bimetallic strip. Because certain tolerances it is necessary after final assembly of the circuit breaker to adjust this. This is done in most cases in that the attachment point the bimetallic strip is deformed by means of an adjusting screw or the distance between the transmission lever or the transfer slider and the bimetallic strip adjusted by means of a screw mounted in the bimetal from the outside becomes.
- the adjustment process is not reversible, d. H. not repeatable as often as desired while maintaining the same adjustment result, because certain plastic deformations are possible. If the distance between the Bimetallic and the transmission lever or trigger element is set, then will transmit a force to the bimetal via the screw, which influences the alignment constancy can.
- the object of the invention is to provide a device of the type mentioned, a safe and constant thermal adjustment with low mounting and testing effort and allows the reversible and any number of times with the same Adjustment result is repeatable.
- the screw is fixed immovably and rotatably guided. It is screwed in an adjusting lever, with the transmission lever or the Transmission slide is coupled, and by turning the screw and adjusting the adjusting lever, the distance between the transmission lever and the Verklinkungsstelle be adjusted in the switch lock.
- a circuit breaker 10 In a circuit breaker 10 is an electromagnetic release 11 and a thermal release 12 shown in the form of a bimetallic strip.
- the electromagnetic Trigger acts on the line of action via the line of action 13 and a striking pin 13a a switching mechanism 14, and the thermal release 12, the at a Fixed at the end of 15 transmits the movement of its free end 16 a transfer slide 17 which is linearly displaceable within a guide 18 is guided, also on the Verklinkungsstelle the switching mechanism 14, see below below.
- the switching mechanism 14 is a contact lever 19th pivoted so that a contact point 20 is opened, which is in a cable 21 between two terminals 22 and 23 is located.
- the electromagnetic release acts directly on the striking pin 13a the contact lever 19 and thus the contact point 20 a.
- the device for adjusting the bimetallic strip 12 comprises a screw 23, the has a recess 24, about which they rotatable in a stationary holder 25 and is guided immovably.
- the screw performs no translational relative movement during rotation Direction of its longitudinal axis based on the fixation in the holder 25 through, but is only rotated about its longitudinal axis.
- the threaded portion 26 of the screw 23 is in an adjusting lever 27 is screwed, one end of which is mounted stationarily at 28 and the other end 29, which here has an L-shape, with the bimetallic strip 12 interacts.
- the bimetal 12 Due to a current flow through the conduction path 21, the bimetal 12 is heated and bends counterclockwise with its free end towards the Transfer slide 17 off. About this slider it pivots the adjusting lever, which shifts the striker and hits the Verklinkungsstelle and the switch lock 14 unlatched.
Landscapes
- Breakers (AREA)
- Thermally Actuated Switches (AREA)
Description
Claims (1)
- Vorrichtung zur Justierung eines thermischen Auslösers (12), mit einem Schaltschloss (14) zur bleibenden Öffnung einer Kontaktstelle (20) eines Installationsschaltgerätes (10), insbesondere eines Leitungsschutzschalters, mit einer Schraube (23) zum Justieren des thermischen Auslösers (12) und einem Übertragungshebel oder -schieber (17) zur Übertragung der Bewegung des Auslösers (12) auf die Verklinkungsstelle des Schaltschlosses (14), wobei die Schraube. (23) ortsfest unverschieblich und drehbar geführt ist, dadurch gekennzeichnet, dass die Schraube (23) in einem L-förmigen Justierhebel (27) eingeschraubt ist, der mit dem Übertragungshebel oder - schieber (17) sowie mit dem Auslösestift (13a) eines elektromagnetischen Auslösers (11) gekoppelt ist, und dass durch Verdrehen der Schraube (23) und damit durch Verstellen des Justierhebels (17) der Abstand zwischen dem thermischen Auslöser (12) und dem Übertragungshebel oder -schieber (17) und damit zwischen dem thermischen Auslöser (12) und der Verklinkungsstelle im Schaltschloss (14) justierbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19739821A DE19739821A1 (de) | 1997-09-11 | 1997-09-11 | Vorrichtung zur Justierung eines thermischen Auslösers insbesondere für einen Leitungsschutzschalter |
DE19739821 | 1997-09-11 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0902453A2 EP0902453A2 (de) | 1999-03-17 |
EP0902453A3 EP0902453A3 (de) | 1999-11-24 |
EP0902453B1 true EP0902453B1 (de) | 2005-11-23 |
Family
ID=7841927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98113767A Expired - Lifetime EP0902453B1 (de) | 1997-09-11 | 1998-07-23 | Vorrichtung zur Justierung eines thermischen Auslösers, insbesondere für einen Leitungsschutzschalter |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0902453B1 (de) |
AT (1) | ATE311015T1 (de) |
DE (2) | DE19739821A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19938965A1 (de) * | 1999-08-17 | 2001-02-22 | Abb Patent Gmbh | Auslöseeinrichtung für einen elektrischen Installationsschalter |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR669531A (fr) * | 1928-02-13 | 1929-11-18 | Schiele & Bruchsaler Ind | Procédé et dispositif pour l'étalonnage et le réglage des disjoncteurs à surcharge |
DE600061C (de) * | 1928-02-24 | 1934-07-13 | Schiele & Bruchsaleri Industri | Eich- und Einstellvorrichtung fuer thermische Ausloeser von UEberstromschaltern |
DE2717116C3 (de) * | 1977-04-19 | 1981-03-26 | Hundt & Weber Schaltgeräte GmbH, 57258 Freudenberg | Mehrphasiger Schutzschalter mit thermischer Auslösung |
DE3515297A1 (de) * | 1985-04-27 | 1986-11-06 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Selbstschalter mit magnetischem und thermischem ausloeseorgan |
FR2602910A1 (fr) * | 1986-08-14 | 1988-02-19 | Telemecanique Electrique | Dispositif de reglage du courant thermique d'un declencheur thermique a bilame et interrupteur de protection comportant un tel dispositif |
-
1997
- 1997-09-11 DE DE19739821A patent/DE19739821A1/de not_active Withdrawn
-
1998
- 1998-07-23 DE DE59813214T patent/DE59813214D1/de not_active Expired - Fee Related
- 1998-07-23 AT AT98113767T patent/ATE311015T1/de not_active IP Right Cessation
- 1998-07-23 EP EP98113767A patent/EP0902453B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0902453A2 (de) | 1999-03-17 |
DE59813214D1 (de) | 2005-12-29 |
EP0902453A3 (de) | 1999-11-24 |
ATE311015T1 (de) | 2005-12-15 |
DE19739821A1 (de) | 1999-03-18 |
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