EP1196936B1 - Bewegbarer kontakt mit niedrigem elektrischen widerstand - Google Patents
Bewegbarer kontakt mit niedrigem elektrischen widerstand Download PDFInfo
- Publication number
- EP1196936B1 EP1196936B1 EP00953033A EP00953033A EP1196936B1 EP 1196936 B1 EP1196936 B1 EP 1196936B1 EP 00953033 A EP00953033 A EP 00953033A EP 00953033 A EP00953033 A EP 00953033A EP 1196936 B1 EP1196936 B1 EP 1196936B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- moveable contact
- contact
- side plates
- side plate
- movable contact
- 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
- 239000000463 material Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims 1
- 238000013461 design Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
- H01H73/045—Bridging contacts
-
- 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
- H01H1/20—Bridging contacts
- H01H1/2041—Rotating bridge
- H01H1/205—Details concerning the elastic mounting of the rotating bridge in the rotor
-
- 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
- H01H1/20—Bridging contacts
- H01H1/2041—Rotating bridge
- H01H1/2058—Rotating bridge being assembled in a cassette, which can be placed as a complete unit into a circuit breaker
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
- H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
- H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
- H01H77/102—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening characterised by special mounting of contact arm, allowing blow-off movement
- H01H77/104—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening characterised by special mounting of contact arm, allowing blow-off movement with a stable blow-off position
Definitions
- the invention relates to a movable contact, especially for a circuit breaker, according to the preamble of Claim 1.
- Circuit breakers come in a variety of designs built to protect circuits against overload. Core of one such a circuit breaker is a movable contact, which in Response to an overload of the circuit to be protected breaks the circuit.
- the drive for the Interrupting movement of the movable contact can occur different ways according to the form of monitoring Overload or done manually.
- a movable contact 1 which is rotatable about a central pin 4, relative to a rotor 3 held rotatable.
- the movable contact 1 In the position shown in Fig. 2 is the movable contact 1 in contact with fixed contacts 2, whereby the circuit to be protected is closed.
- Tabs 5 shown which can be rotated by means of pins 6 on the movable contact 1 are held.
- the center pin 4 penetrates contact 1 around it on both sides, i.e. on the front side shown in the drawing and the this side facing away from the rotor 3 or on a Support housing 8.
- the tabs 5 are symmetrical on the Front and back of the movable contact 1 provided and the pins 6 penetrate the movable contact in the direction perpendicular to the plane of the drawing in FIG one pair of tabs each on the front and back of the to keep movable contact 1.
- the tabs 5 press radially outward of the rotor 3 displaceable pins 7 against the Spring force of a tension spring connecting the pins 7 to one another 9 radially outwards. If the tabs 5 in the direction of Stand diameter of the rotor 3, the movable contact is 1 in a dead center position in which the spring force of the spring 9 is greatest is. After exceeding or crossing this dead center position the tabs 5 move again under the spring force towards each other until the movable contact in the in Fig. 3rd shown release position, in which the connection of the Fixed contacts 2 is interrupted via the movable contact 1.
- the serving as the axis of rotation for the rotor 3 or the tabs 5 Pins 4 and 6 inserted into holes in the movable Contact 1 are formed.
- the cross section of the movable Contact 1 In the area of these holes is the cross section of the movable Contact 1 is not available for current supply; the movable contact has a high electrical resistance. Consequently, the movable contact 1 must be dimensioned that its smallest cross-section, i.e. in the area of the holes, for the current supply is sufficient and further requirements with regard to the heating etc. of the movable contact the current flowing in it is sufficient. This leads to a Oversizing the remaining sections of the movable Contact, which leads to a high consumption of expensive copper. It should be noted that such circuit breakers millions of times are produced so that a reduction in material requirements a significant cost reduction for the manufacturer and a Conservation of natural material and energy resources.
- EP 0 394 922 A1 shows a flat contact on both sides is taken up by bearing shells with a slot. Thereby there is a rotatable bearing without breaking the movable contact.
- the bearing shells also serve Inclusion of torsion springs that pre-stress the contact serve in the closed position (contact pressure). Will the Contacts separated when tripped, so the contact turns against Spring force and is in the open position by a Latching device held.
- WO 92/00598 shows a movable contact that is encompassed by a bearing element, the lateral bearing journal wearing.
- the movable contact is also stored here without breaking through the cross-section.
- Torsion spring provided to keep the contact in the closed position biasing.
- an actuation extension is formed on the bearing element which the trigger mechanism acts on.
- the invention has for its object a movable Contact according to the preamble of claim 1 to that effect further that the size of the contact, and thus the Size of one using the movable contact Circuit breaker is reduced and manufacturing simplified is.
- the task comes with a movable contact with the characteristics of claim 1 solved.
- a movable contact in particular for a circuit breaker, proposed that is concentric with a Rotor is rotatably mounted, two fixed contacts in the closed position connects to each other and by the rotor along a pole track in a release position is movable in which the fixed contacts are separated from each other, the movable contact on two its flanks each with a side plate with a Bearing half for the rotatable mounting of the movable contact is provided.
- each one half of the bearing for rotating Bearing the contact can be on a hole in the Contact be waived. Because of this there is none Cross-sectional reduction in this area of contact before and the movable contact has a lower electrical Resistance so that the contact for the same current value with smaller cross-section can be designed than that conventional contact with a bore from the center pin is reached. As a result, the contact can be smaller and one have a smaller volume of copper, so that by the inventive design of the copper need for the contact is reduced. Due to the smaller contact, the Size of the circuit breaker can be reduced.
- the bearing half is from the respective side plate extending projection.
- the Contact is provided with at least two swivel tabs, which are resiliently connected and slidable and are pivotally mounted on a pole track housing to the movable contact while crossing a dead center position of the Lugs optionally in the closed position or in the Keep the release position under pre-tension.
- the Tabs are in on the side panels trained recordings held without drilling for the pins of the tabs must be provided in the contact. This also eliminates the reduction in cross-section in the area of these holes, so that, due to the reduced electrical Contact resistance, a correspondingly smaller one Dimensioning of the contact becomes possible.
- the side plates are connected via at least one web, which overlaps another free flank of the movable contact.
- This allows the side panels to become a common component can be summarized, if necessary, simply on the movable Contact can be snapped.
- the flanks of the movable contact associated with the side plates embossed alignment projections with associated recesses the side panels work together to secure the side panels and position it exactly.
- the circuit breaker can be a circuit breaker or also another switch to be operated.
- Movable contact shown in a perspective view.
- This Movable contact can preferably be in a circuit breaker be used, its structure and mode of action in essentially the circuit breaker shown in Fig. 2 and Fig. 3 like. Consequently, such use will be short here will not be described again.
- Fig. 1 shows a movable contact 10 on its two Side surfaces or flanks 13 (only one is visible in FIG. 1) is provided with side plates 11.
- the side plates 11 are connected to each other via a web 12 which has a side surface or flank 14 of the movable contact 10 overlaps.
- the jetty 1 can be made in two parts, according to FIG each a web half in the extension of the side plate 11 extends and the contour of the contact 10 is bent following.
- On the junction of the two web halves will be the two Side panels during assembly e.g. by welding, soldering, Flanges etc. connected to each other so that the side plates 11th are firmly attached to the contact 10.
- a corresponding Web (not shown) provided.
- the web 12 can be continuous, the two Side plates 11 connecting and elastically deformable are executed so that the side plates 11 simply on the Contact 10 can be plugged on. It is preferably on the edges of the side plates 11 facing away from the web 12 corresponding locking edge or locking lug (not shown) formed which cooperates with an edge of the contact 10.
- the projection 41 forms one half of the bearing.
- the arrangement of this projection 41 according to FIG Contact 10 is not pierced by a hole, so that electrical resistance is reduced. Consequently, the Contact 10 dimensioned smaller for the same current value become.
- the side plates 11 can be made of sheet steel, other sheet metal or also be made of plastic.
- sheet metal i.e. cold-formable material
- the projections can be formed directly, so that a time-consuming post-processing is not necessary. It can other materials can also be used, such as Metal alloys that give shape in the casting or die casting process can be processed.
- Fig. 1 shows further formed in the side plates 11 Recordings 61 for tabs 50.
- the receptacles 61 correspond to the pins 6 in FIGS. 2 and 3 as well as the tabs 50, so that here a repetition of the Description of the mode of action can be dispensed with.
- the recordings 61 in the side plates 11 allow one secure hold of the tabs 50 on the side plates 11 and movable contact 10 without the contact 10 penetrating Holes are required. Analogous to the comments on the Projection 41 thereby reduces the cross section avoided and the advantages described there are achieved.
- Fig. 1 there are also guide projections 80 on the side plates 11 designed for additional guidance of the movable Serves contact 10 in its housing (not shown).
- This Guide projections 80 act with curved guides (not shown) together in the housing and thereby relieve the projection 41st
- the projections 41 on the side plates also replaced by pins attached to the side plates become.
- These lifts can be screwed in, for example, caulked, soldered or welded.
- a such modification is also in the lead possible.
Landscapes
- Breakers (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Description
Claims (9)
- Bewegbarer Kontakt (10), insbesondere für einen Schutzschalter, der konzentrisch mit einem Rotor drehbar gelagert ist, in Schließstellung zwei Festkontakte miteinander verbindet und von dem Rotor entlang einer Polbahn in eine AUS-Stellung bewegbar ist, in der die Festkontakte voneinander getrennt sind, wobei der Kontakt mit mindestens zwei schwenkbaren Laschen (50) versehen ist, die federnd miteinander verbunden sind sowie verschiebbar und schwenkbar an einem Polbahngehäuse gelagert sind, um den bewegbaren Kontakt (10) unter Durchqueren einer Übertotpunktlage der Laschen (50) wahlweise in der Schließstellung oder in der AUS-Stellung unter Vorspannung zu halten,
dadurch gekennzeichnet, dass
der bewegbare Kontakt (10) an zwei seiner Flanken (13) jeweils mit einer Seitenplatte (11) mit einer Lagerhälfte (41) zur drehbaren Lagerung des bewegbaren Kontakts (10) versehen ist und
die Laschen (50) in an den Seitenplatten (11) ausgebildeten Aufnahmen (61) gehalten sind. - Bewegbarer Kontakt nach Anspruch 1, dadurch gekennzeichnet, dass die Lagerhälfte ein aus der Seitenplatte (11) vorstehender Vorsprung (41) ist.
- Bewegbarer Kontakt nach Anspruch 1 oder 2, dadurch gekennzeichnet, das die Seitenplatten (11) über mindestens einen Steg (12) verbunden sind, der eine andere Flanke (14) des bewegbaren Kontakts (10) übergreift.
- Bewegbarer Kontakt nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass die Seitenplatte (11) aus einem kaltverformbaren Material gemacht ist und die Lagerhälfte (41) durch Prägen daran ausgebildet ist.
- Bewegbarer Kontakt nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass die Seitenplatte (11) einen darin eingepressten Stift hat, der die Lagerhälfte (41) ausbildet.
- Bewegbarer Kontakt nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass die Seitenplatte (11) einen darin eingeschraubten Stift hat, der die Lagerhälfte (41) ausbildet.
- Bewegbarer Kontakt nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass die Seitenplatte (11) aus Kunststoff ist, wobei die Lagerhälfte (41) daran angeformt ist.
- Bewegbarer Kontakt nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die den Seitenplatten (11) zugeordneten Flanken (13) des bewegbaren Kontakts (10) geprägte Ausrichtvorsprünge haben, die mit zugeordneten Aussparungen (81) der Seitenplatten (11) zusammenwirken.
- Bewegbarer Kontakt nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Seitenplatten (11) Führungsvorsprünge (80) aufweisen, um den bewegbaren Kontakt (10) in an dem Polbahngehäuse ausgebildeten Führungen zu führen.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1999133919 DE19933919B4 (de) | 1999-07-20 | 1999-07-20 | Bewegbarer Kontakt mit niedrigem elektrischen Widerstand |
DE19933919 | 1999-07-20 | ||
PCT/EP2000/006572 WO2001006530A1 (de) | 1999-07-20 | 2000-07-11 | Bewegbarer kontakt mit niedrigem elektrischen widerstand |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1196936A1 EP1196936A1 (de) | 2002-04-17 |
EP1196936B1 true EP1196936B1 (de) | 2004-03-03 |
Family
ID=7915372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00953033A Expired - Lifetime EP1196936B1 (de) | 1999-07-20 | 2000-07-11 | Bewegbarer kontakt mit niedrigem elektrischen widerstand |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1196936B1 (de) |
JP (1) | JP4480312B2 (de) |
CN (1) | CN1214434C (de) |
AU (1) | AU6563000A (de) |
DE (1) | DE19933919B4 (de) |
ES (1) | ES2214299T3 (de) |
PL (1) | PL196125B1 (de) |
WO (1) | WO2001006530A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9190223B2 (en) | 2011-11-02 | 2015-11-17 | Siemens Aktiengesellschaft | Rotor housing of an electrical switching device and electrical switching device |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10013160B4 (de) * | 2000-03-17 | 2006-07-06 | Aeg Niederspannungstechnik Gmbh & Co Kg | Schaltwelleneinheit für einen Schalter |
DE102005050705B4 (de) * | 2005-10-05 | 2008-07-31 | Moeller Gmbh | Kontaktsystem für einen Niederspannungsschalter |
DE102007040163A1 (de) | 2007-08-21 | 2009-02-26 | Siemens Ag | Schaltgerät mit einer Schaltwelle zur Lagerung einer Drehkontaktbrücke sowie mehrpolige Schaltgeräteanordnung |
DE102008049442B4 (de) * | 2008-09-29 | 2015-02-19 | Siemens Aktiengesellschaft | Drehkontaktsystem für ein Schaltgerät, insbesondere für ein Leistungsschaltgerät, mit einem radial von innen aufgebrachten schließenden Drehmoment |
DE102009052965B3 (de) | 2009-11-12 | 2011-07-21 | Eaton Industries GmbH, 53115 | Rotativer Doppelkontakt |
DE102010035625A1 (de) * | 2010-08-24 | 2012-03-01 | Siemens Aktiengesellschaft | Elektrischer Schalter und Verfahren zum Montieren einer Schalteinheit eines elektrischen Schalters |
DE102011075729A1 (de) * | 2011-05-12 | 2012-11-15 | Siemens Aktiengesellschaft | Elektrischer Schalter |
CN104465254A (zh) | 2013-09-24 | 2015-03-25 | 上海电科电器科技有限公司 | 旋转双断点触头 |
CN105261528A (zh) * | 2015-11-10 | 2016-01-20 | 上海电器股份有限公司人民电器厂 | 联结架及其断路器 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2622347B1 (fr) * | 1987-10-26 | 1995-04-14 | Merlin Gerin | Dispositif de coupure pour un disjoncteur multipolaire a contact rotatif double |
SE461557B (sv) * | 1989-04-28 | 1990-02-26 | Asea Brown Boveri | Kontaktanordning foer elkkopplare |
SE9002264L (sv) * | 1990-06-27 | 1991-12-28 | Asea Brown Boveri | Kontaktanordning foer elkopplare |
FR2688626B1 (fr) * | 1992-03-13 | 1994-05-06 | Merlin Gerin | Disjoncteur a boitier moule a pont de contacts freine en fin de course de repulsion. |
IT1292453B1 (it) * | 1997-07-02 | 1999-02-08 | Aeg Niederspannungstech Gmbh | Gruppo rotante di contatti per interrutttori di alta portata |
US6114641A (en) * | 1998-05-29 | 2000-09-05 | General Electric Company | Rotary contact assembly for high ampere-rated circuit breakers |
DE19836754B4 (de) * | 1998-08-13 | 2006-10-05 | Aeg Niederspannungstechnik Gmbh & Co Kg | Schaltwelleneinheit für Schalter |
-
1999
- 1999-07-20 DE DE1999133919 patent/DE19933919B4/de not_active Expired - Fee Related
-
2000
- 2000-07-11 CN CN 00810577 patent/CN1214434C/zh not_active Expired - Fee Related
- 2000-07-11 AU AU65630/00A patent/AU6563000A/en not_active Abandoned
- 2000-07-11 ES ES00953033T patent/ES2214299T3/es not_active Expired - Lifetime
- 2000-07-11 JP JP2001511704A patent/JP4480312B2/ja not_active Expired - Fee Related
- 2000-07-11 EP EP00953033A patent/EP1196936B1/de not_active Expired - Lifetime
- 2000-07-11 PL PL353338A patent/PL196125B1/pl unknown
- 2000-07-11 WO PCT/EP2000/006572 patent/WO2001006530A1/de active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9190223B2 (en) | 2011-11-02 | 2015-11-17 | Siemens Aktiengesellschaft | Rotor housing of an electrical switching device and electrical switching device |
Also Published As
Publication number | Publication date |
---|---|
JP2003505832A (ja) | 2003-02-12 |
AU6563000A (en) | 2001-02-05 |
PL196125B1 (pl) | 2007-12-31 |
PL353338A1 (en) | 2003-11-17 |
CN1361917A (zh) | 2002-07-31 |
ES2214299T3 (es) | 2004-09-16 |
DE19933919A1 (de) | 2001-01-25 |
WO2001006530A1 (de) | 2001-01-25 |
JP4480312B2 (ja) | 2010-06-16 |
DE19933919B4 (de) | 2009-09-10 |
CN1214434C (zh) | 2005-08-10 |
EP1196936A1 (de) | 2002-04-17 |
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