EP1298692A2 - Schaltkontaktanordnung eines Niederspannungs-Leistungsschalters - Google Patents
Schaltkontaktanordnung eines Niederspannungs-Leistungsschalters Download PDFInfo
- Publication number
- EP1298692A2 EP1298692A2 EP02090331A EP02090331A EP1298692A2 EP 1298692 A2 EP1298692 A2 EP 1298692A2 EP 02090331 A EP02090331 A EP 02090331A EP 02090331 A EP02090331 A EP 02090331A EP 1298692 A2 EP1298692 A2 EP 1298692A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- spacers
- contact carrier
- bearing pin
- support surface
- 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
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
- H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
- H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
- H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
- H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
- H01H2001/228—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars with insulating spacers between the contact bars
Definitions
- the thickness of the bearing pin is not unlimited can be increased, because on the one hand the receiving bore in the contact lever because of the current carrying capacity of the same possible should be small and on the other hand, the storage in the contact carrier can be difficult, at high stress of the bearing pin a deflection of the same occur, because this is supported only at its ends in the contact carrier.
- These bending forces act because of the larger effective lever arm from the arranged towards the center of the contact carrier Contact levers most on the center of the bearing pin, so that the greatest deflection occurs here. The result is, that in the region of the middle contact lever, the contact force decreases what happens with selective low-voltage circuit breakers must be avoided as possible to avoid damage to the contacts to avoid.
- the invention is based on the object, one against stresses caused by high currents mechanically and electrically resistant contact arrangement with a plurality parallel pivotal contact levers to create the have a defined bearing axis.
- the spacers are that the outer support surface and one on the contact carrier arranged mating surface concentric are, suitably such that the outer support surface and the arranged on the contact carrier mating surface concentric with the Passage opening are arranged.
- the spacer can then be formed as a circular cylindrical disk, which is the Handling during assembly of the contact arrangement of their Relieved items.
- the spacers in the last-mentioned embodiment have Similarity with a washer, differ of these, however, by their design and condition. Although may be useful in their preparation also of sheet-shaped semi-finished, but it comes stronger than washers on compliance with all dimensions at.
- the passage opening and the support surface together in one operation as Precision surfaces are produced.
- a material for example Brass sheet suitable.
- FIG. 1 shows a schematic representation of a Low-voltage circuit breaker with a switching contact arrangement according to the invention in section.
- FIG. 2 shows an enlarged detail of a movable one Contact carrier of the circuit breaker according to the figure 1 on average.
- a disc-shaped spacer for the contact arrangement according to the figure 2 is shown as a single part in the figure 3.
- Figures 4 and 5 show further embodiments of spacers.
- Figure 6 shows a contact carrier and the associated Contact lever with spacers and a bearing pin, wherein Spacers are provided only in the central region of the bearing pin are.
- FIG. 7 shows a representation corresponding to FIG a contact arrangement in which between all existing Contact levers spacers are arranged.
- the low-voltage circuit breaker shown in Figure 1 1 has a housing 2, in which parallel to each other depending on the required number of poles switching chambers 3 are added.
- a Drive device 4 is used for common operation of Switching contact assemblies 5, each consisting of a fixed Contact assembly 6 and a movable contact assembly 7 exist.
- the contact assemblies are 6 and 7 connected to externally accessible connecting rails 8 and 9. Details of the movable contact assembly 7 are explained below with reference to FIG 2.
- FIG. 2 belongs to the Contact assembly 7 a partially cut shown Contact carrier 10 made of insulating plastic, in the housing 2 (see Figure 1) is pivotally mounted and means the drive device 4 relative to the fixed contact assembly 6 in a closed position and in an off position to convict.
- On the contact carrier 10th are a plurality of parallel arranged contact lever 11th about a location bolt 12 relative to the contact carrier 10th pivotable, wherein contact force springs 13 for a bias voltage the contact lever 11 in the direction of the fixed contact assembly to care.
- Flexible ladder 14 in the form of strands or bands are used to connect the contact lever 11 with the lower connecting rail 9 in such a way that an unhindered Mobility of the contact lever 11 and the contact carrier 10 is ensured in the switching movements.
- the number of attached to the contact carrier 10 contact lever 11 depends on the amount of current that the Circuit breaker 1 should run during operation. As the figure 6 can be seen, there are a total of 13 contact levers, of which nine contact lever the shape of the contact lever 11th 2, while four further contact levers, the pairs on both sides of a medium group of contact levers 11 are arranged as a shorter contact lever 16 is formed which are only one main contact area, but none Precontact and have no arcing horn.
- the in the figure 6 arrangement of contact levers 11 and 16 is opposite the width of the contact carrier 11 pulled apart to show still to be explained details. In operational condition, all contact levers are between side cheeks 17 of the contact carrier 10 was added, the are provided with receiving openings 18 for the bearing pin 12 and go down into bearing arms 15.
- the relatively large width of the switch contact arrangement according to the Figure 6 entails that the bearing pin 12 of a relative heavy stress is subjected to bending when in the closed state of the switch contact arrangement 5 next the forces of the contact force springs 13 more forces To add a high current such as short-circuit or surge current.
- a high current such as short-circuit or surge current.
- the inner diameter d a through hole 19 with close tolerance to the diameter the bearing pin 12 adapted during the outer diameter D an outer cylindrical support surface 21 on a on the contact carrier 10 at its the contact levers 11 and 16 facing Side arranged counter surface 21 is tuned.
- the mutual coordination of the support surface 21 and the counter surface 22 is that the counter surface 22 concentric formed to the axis of the spacer 20 as a cylindrical surface is and in the off state of rest of the outer support surface 21 with a minimum distance A faces.
- the distance A in the figure 2 can not be represented, so that there the support surface 21 to abut against the counter surface 22 seems.
- FIG. 2 that is indicated by an arrow provided reference numeral A to the distance. This causes the spacers 20 unhindered on the bearing pin 12 can be threaded when the contact lever 11 and 16 are mounted.
- the spacers 20 according to the figure 3 may preferably Made of brass sheet in a fine blanking process.
- the inner peripheral surface of the through hole receive 19 and the outer support surface 21 is a smooth cylindrical Shape without burr formation. This is an areal Installation of the spacer 20 both on the bearing pin 12th as well as on the opposite surface 21 ensured.
- the space becomes between the cheeks 17 of the contact carrier 10 by the contact lever 11 and 16 including the spacers 20 to size filled. If only between the individual Contact lever spacers 20 provided as in the example according to the figure 6, so it is recommended, at least the rest Contact lever 11 and 16 with projections 23 or the like Characteristics that provide a mutual distance of the Contact levers 11 and 16 cause and thus also the desired Width measure.
- FIG. 4 likewise has an inner passage opening 19 with a bearing pin 12 adapted diameter d provided, however, has a flat support surface 25. Accordingly the spacer 24 is a flat counter surface 26 on the associated contact carrier opposite.
- FIG. 5 27 Another spacer illustrated in FIG. 5 27 is provided with a concave support surface 28, the one opposite convex surface 29 of the associated contact carrier stands.
- Supporting body 24 and 27 according to Figures 4 and 5 allow relatively large support surfaces and thus low To realize stresses on the mating surfaces of the contact carrier. Furthermore, an uncontrolled rotation of the spacers prevented due to any influences. however is the correct position of these spacers during assembly relative to the contact carrier.
- the support surfaces of the spacers stand and the corresponding mating surfaces on the contact carriers with a minimum distance A of the order of magnitude of a few tenths of a millimeter across.
- A is set at 0.2 mm, this is at the same time the measure on which a deflection of the bearing pin 12 is limited under heavy use. This deflection is so low that it has virtually no impact the position of the contact lever and thus no influence on the size of the contact force.
Landscapes
- Breakers (AREA)
Abstract
Description
- einem in eine Einschaltstellung und in eine Ausschaltstellung bewegbaren Kontaktträger,
- mehreren parallel zueinander angeordneten und auf einem gemeinsamen Lagerbolzen schwenkbar gelagerten Kontakthebeln, wobei der Lagerbolzen an seinen Enden in Wangen des Kontaktträgers aufgenommen ist, und
- zwischen benachbarten Kontakthebeln angeordneten Abstandsstücken.
- die Abstandsstücke als Einzelteile ausgebildet sind und
- wenigstens einige der Abstandsstücke eine dem Lagerbolzen angepasste Durchgangsöffnung sowie zur Begrenzung einer Durchbiegung des Lagerbolzens eine dem Kontaktträger gegenüberstehende äußere Stützfläche aufweisen.
Claims (6)
dadurch gekennzeichnet, dass
zwischen dem Kontaktträger (10) und den Stützflächen (21; 25; 28) der Abstandsstücke (20; 24; 27) in der Ausschaltstellung ein minimaler Abstand (A) besteht und dass die Abstandsstücke (20; 24; 27) bei einer Belastung des Lagerbolzens (12) mit einer vorgegebenen Kraft mit ihren Stützflächen (21; 25; 28) an einer Gegenfläche (22; 26; 29) des Kontaktträgers (10) anliegen.
dadurch gekennzeichnet, dass
die äußere Stützfläche (25) des Abstandsstückes (24) und eine am Kontaktträger angeordnete Gegenfläche (26) eben ausgebildet sind. (Figur 4)
dadurch gekennzeichnet, dass
die äußere Stützfläche (21; 28) des Abstandsstückes (20; 27) und eine am Kontaktträger angeordnete Gegenfläche (22; 29) als zylindrische konzentrische Flächen ausgebildet sind. (Figuren 2 und 5)
dadurch gekennzeichnet, dass
die äußere Stützfläche (21) des Abstandsstückes (20) und die am Kontaktträger (10) angeordnete Gegenfläche (22) konzentrisch zu der Durchgangsöffnung (19) angeordnet sind. (Figur 2)
dadurch gekennzeichnet, dass
die Abstandsstücke (20; 24; 27) aus blechförmigem Metall bestehen und dass die Durchgangsöffnung (19) und die Stützfläche (21; 25; 28) gemeinsam in einem Arbeitsgang als Präzisionsflächen hergestellt sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10148947A DE10148947C1 (de) | 2001-09-28 | 2001-09-28 | Schaltkontaktanordnung eines Niederspannungs-Leistungsschalters |
DE10148947 | 2001-09-28 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1298692A2 true EP1298692A2 (de) | 2003-04-02 |
EP1298692A3 EP1298692A3 (de) | 2003-10-15 |
EP1298692B1 EP1298692B1 (de) | 2004-12-15 |
Family
ID=7701360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02090331A Expired - Lifetime EP1298692B1 (de) | 2001-09-28 | 2002-09-13 | Schaltkontaktanordnung eines Niederspannungs-Leistungsschalters |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1298692B1 (de) |
DE (2) | DE10148947C1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101908443A (zh) * | 2010-08-05 | 2010-12-08 | 无锡新宏泰电器科技股份有限公司 | 一种断路器的触头系统 |
WO2022238242A1 (fr) * | 2021-05-11 | 2022-11-17 | Hager-Electro Sas | Contact mobile configuré pour être intégré dans un disjoncteur |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004009873A1 (de) * | 2004-02-26 | 2005-09-15 | Siemens Ag | Schaltkontaktanordnung |
DE102004020654A1 (de) * | 2004-04-22 | 2005-11-10 | Siemens Ag | Schaltkontaktanordnung |
DE102004058764A1 (de) * | 2004-11-30 | 2006-06-01 | Siemens Ag | Anschlussschiene für flexible elektrische Leiter |
DE102005009484A1 (de) * | 2005-02-23 | 2006-09-14 | Siemens Ag | Kontakthebelbaugruppe für einen Niederspannungs-Leistungsschalter |
US7935902B2 (en) * | 2008-04-15 | 2011-05-03 | General Electric Company | Contact assembly of circuit breaker |
ES2704598T3 (es) | 2012-06-11 | 2019-03-19 | Abb Oy | Aparato de conmutación de corriente eléctrica |
EP2674953B1 (de) | 2012-06-11 | 2018-01-24 | ABB Oy | Stromschaltvorrichtung |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1545113A (fr) * | 1966-11-21 | 1968-11-08 | Gen Electric | Dispositif articulé de coupure pour disjoncteur ou interrupteur |
DE3539788A1 (de) * | 1985-11-07 | 1987-05-14 | Siemens Ag | Kontaktanordnung mit kontakthebel voneinander trennenden zwischenlagen |
US5012053A (en) * | 1988-03-24 | 1991-04-30 | Terasaki Denki Sangyo Kabushiki Kaisha | Contact device for a switch |
US5389906A (en) * | 1993-08-20 | 1995-02-14 | General Electric | Cost-efficient industrial-rated molded case breaker |
DE19629482C1 (de) * | 1996-07-12 | 1997-09-11 | Siemens Ag | Schaltkontaktanordnung mit einer Gelenkanordnung für einen Kontakthebel |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE758108C (de) * | 1937-10-09 | 1954-02-01 | Siemens Schuckertwerke A G | Kontaktanordnung fuer elektrische Schaltgeraete |
DE3679291D1 (de) * | 1985-10-31 | 1991-06-20 | Merlin Gerin | Kinematische uebertragungskette zwischen dem steuermechanismus und den polen eines elektrischen lastschalters mit einem gespritzten isoliergehaeuse. |
DE29502564U1 (de) * | 1995-02-16 | 1996-06-20 | Siemens AG, 80333 München | Elektrische Maschine |
DE29609824U1 (de) * | 1996-05-21 | 1997-07-24 | Siemens AG, 80333 München | Niederspannungs-Leistungsschalter mit einem Kontaktträger |
-
2001
- 2001-09-28 DE DE10148947A patent/DE10148947C1/de not_active Expired - Fee Related
-
2002
- 2002-09-13 EP EP02090331A patent/EP1298692B1/de not_active Expired - Lifetime
- 2002-09-13 DE DE50201764T patent/DE50201764D1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1545113A (fr) * | 1966-11-21 | 1968-11-08 | Gen Electric | Dispositif articulé de coupure pour disjoncteur ou interrupteur |
DE3539788A1 (de) * | 1985-11-07 | 1987-05-14 | Siemens Ag | Kontaktanordnung mit kontakthebel voneinander trennenden zwischenlagen |
US5012053A (en) * | 1988-03-24 | 1991-04-30 | Terasaki Denki Sangyo Kabushiki Kaisha | Contact device for a switch |
US5389906A (en) * | 1993-08-20 | 1995-02-14 | General Electric | Cost-efficient industrial-rated molded case breaker |
DE19629482C1 (de) * | 1996-07-12 | 1997-09-11 | Siemens Ag | Schaltkontaktanordnung mit einer Gelenkanordnung für einen Kontakthebel |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101908443A (zh) * | 2010-08-05 | 2010-12-08 | 无锡新宏泰电器科技股份有限公司 | 一种断路器的触头系统 |
CN101908443B (zh) * | 2010-08-05 | 2014-05-14 | 无锡新宏泰电器科技股份有限公司 | 一种断路器的触头系统 |
WO2022238242A1 (fr) * | 2021-05-11 | 2022-11-17 | Hager-Electro Sas | Contact mobile configuré pour être intégré dans un disjoncteur |
FR3122944A1 (fr) * | 2021-05-11 | 2022-11-18 | Hager-Electro Sas | Contact mobile configuré pour être intégré dans un disjoncteur |
Also Published As
Publication number | Publication date |
---|---|
EP1298692A3 (de) | 2003-10-15 |
EP1298692B1 (de) | 2004-12-15 |
DE10148947C1 (de) | 2003-02-13 |
DE50201764D1 (de) | 2005-01-20 |
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