EP0970497A1 - Switching device - Google Patents
Switching deviceInfo
- Publication number
- EP0970497A1 EP0970497A1 EP98916914A EP98916914A EP0970497A1 EP 0970497 A1 EP0970497 A1 EP 0970497A1 EP 98916914 A EP98916914 A EP 98916914A EP 98916914 A EP98916914 A EP 98916914A EP 0970497 A1 EP0970497 A1 EP 0970497A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact arm
- brake body
- contact
- switching device
- impact
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
Definitions
- the invention relates to a switching device with a contact arrangement with at least one movable contact piece arranged on a rotatable or displaceable contact arm and at least one fixed contact piece, the switching device comprising at least a first stop which limits the movement of the contact arm when the contact arrangement is opened.
- a circuit breaker with a contact arrangement which comprises a movable contact piece arranged on a rotatable contact arm and a fixed contact piece, a stop being provided which limits the movement of the contact arm when the movable contact piece opens.
- the contact arm When the contact arm has reached its end position, the arm is prevented from falling back into the closed position of the contact arrangement by a corresponding mechanical safety device.
- a disadvantage of such a switching device is, inter alia, that when the contact arrangement is opened - especially with high switching capacities - there is a risk that the contact arm will be thrown back by the stop before the mechanical safety device acts, so that the contact arrangement is inadvertently closed again.
- the invention is therefore based on the object of specifying a switching device of the type mentioned at the outset, in which the contact arm is braked even in the case of high switching powers when it reaches its predetermined end position, without it then being thrown back by the stop.
- the first stop is a brake body which is arranged as a whole and that the material and the inertia of the contact arm including the movable contact piece on the one hand and the brake body on the other hand are chosen such that when the contact arm strikes the brake body is impacted in such a way that the contact arm is braked and the brake body is moved.
- the invention is essentially based on the idea of using a movable brake body as a stop, the material and inertia (ie inertial mass or moment of inertia) of which is matched to the contact arm in such a way that a shock is performed when the contact arm hits the brake body, such that the contact arm is braked sharply and the brake body is moved at a corresponding speed in a predetermined direction.
- inertia ie inertial mass or moment of inertia
- the brake body can then be braked after appropriate travel by a corresponding additional means, for example a second stop or a spring.
- a damping body is provided between the brake body and the second stop the impact of the switching arm against the brake body slows down its movement, provided that the brake body is in turn moved back to an initial position.
- This damping body can preferably simultaneously serve as a holding element for the brake body. So that the contact arm is not pushed and pivoted back by the moving back brake body, it has proven to be advantageous to provide a back stop for the brake body.
- an elastically or plastically deformable material for example lead
- a large part of the kinetic energy of the contact arm can be permanently absorbed when the contact piece strikes the brake body.
- the permanent deformation of the brake body can also be used in a simple manner (for example by using a viewing window or by using a pressure sensor etc.) to display the service life of the switching device.
- Figure 1 the side view of the contact arrangement of a switching device according to the invention with two rotatable switching elements arranged on a contact arm and two brake bodies opposite the ends of the contact arm, the contact arrangement being in its closed position;
- FIG. 2 the section designated II in FIG. 1, the brake body being mounted in a damping body;
- FIG. 3 a switching device according to the invention with a rear stop to limit the bouncing movement of the brake body;
- FIG. 4 the side view of a further exemplary embodiment of the invention, in which the brake body is displaceably arranged at an angle of approximately 45 ° to the movement of the contact arm;
- FIG. 1 denotes a circuit breaker, which comprises a switching chamber housing with a housing wall 2, which is only indicated schematically, and a contact arrangement 3 arranged in the housing.
- a circuit breaker which comprises a switching chamber housing with a housing wall 2, which is only indicated schematically, and a contact arrangement 3 arranged in the housing.
- two connecting terminals 4, 5 are provided, which are connected via loop-shaped NEN-shaped conductors 6, 7 are connected to two fixed contact pieces 8, 9.
- the fixed contact pieces 8, 9 are bridged by means of a contact arm 11 which can be rotated about an axis 10.
- the two arm halves 12, 13 of the rotatable contact arm 11 press against movable contact pieces 14, 15 against the fixed contact pieces 8, 9.
- each one Brake body (first stop) 16, 17 arranged between the housing wall 2 and the two sides of the contact arm 11, which are opposite the movable contact pieces 14, 15, are each one Brake body (first stop) 16, 17 arranged.
- the brake bodies are made, for example, of the same material as the contact arm (for example, copper).
- the masses of the two brake bodies 16, 17 are so matched to the mass of the contact arm 11, including the movable switching elements 14, 15, that an opening movement in the direction indicated by the arrows 100 when the contact arm 11 strikes the respective brake body 16, 17 elastic impact is carried out in such a way that the contact arm 11 brakes strongly (ideally completely braked) and the respective brake body 16, 17 is moved towards the housing wall 2 at a corresponding speed.
- the housing wall 2 is formed in the impact area of the respective brake body 16, 17 as a second stop 18, 19 for braking the brake body.
- the respective brake body 16, 17 is preferably mounted in a damping body 20 made of a resilient material (preferably rubber) which, after the contact arm 11 strikes the brake body 16, 17, partially brakes its movement.
- FIG. 3 shows a corresponding embodiment of a back stop designated by 21.
- the back stop is formed by the inner step of a step recess in a corresponding support part 22.
- the contact arm can be braked by means of a movable brake body not only when using rotatable but also when using movable contact arms. Further can also be used as a damping body with a spring with appropriate characteristics.
- the respective brake body does not have to be arranged in the region of the contact arm ends as shown in the figures, but can be arranged in particular with a view to realizing a straight central impact of the impacting and the impacted body such that the direction of impact with the connecting line the center of the contact arm (or contact arm half) and the brake body coincide.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Massaging Devices (AREA)
- Valve Device For Special Equipments (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Mechanisms For Operating Contacts (AREA)
- Push-Button Switches (AREA)
- Eye Examination Apparatus (AREA)
- Seal Device For Vehicle (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712958A DE19712958C1 (en) | 1997-03-27 | 1997-03-27 | Switch device |
DE19712958 | 1997-03-27 | ||
PCT/EP1998/001386 WO1998044524A1 (en) | 1997-03-27 | 1998-03-11 | Switching device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0970497A1 true EP0970497A1 (en) | 2000-01-12 |
EP0970497B1 EP0970497B1 (en) | 2002-12-18 |
Family
ID=7824836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98916914A Expired - Lifetime EP0970497B1 (en) | 1997-03-27 | 1998-03-11 | Switching device |
Country Status (6)
Country | Link |
---|---|
US (1) | US6246021B1 (en) |
EP (1) | EP0970497B1 (en) |
AT (1) | ATE230155T1 (en) |
AU (1) | AU7033498A (en) |
DE (2) | DE19712958C1 (en) |
WO (1) | WO1998044524A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6489869B2 (en) * | 2000-03-08 | 2002-12-03 | Juergen Breitlow-Hertzfeldt | Electrical component and process for the manufacture thereof |
EP1132935B1 (en) * | 2000-03-08 | 2006-08-23 | Tyco Electronics AMP GmbH | Electrical component and process for the manufacture thereof |
US6590172B1 (en) * | 2002-03-29 | 2003-07-08 | General Electric Company | Circuit breaker mechanism for a rotary contact system |
US7064284B1 (en) * | 2005-01-13 | 2006-06-20 | Eaton Corporation | Circuit breaker with bumper |
DE102005014006B4 (en) * | 2005-03-26 | 2013-09-19 | Abb Ag | Electrical switching device |
DE102008024387A1 (en) * | 2008-05-15 | 2009-11-19 | Siemens Aktiengesellschaft | Switching device, has movable contact element contacting stationary contact element in contact position for closing electric circuit, and deceleration device reducing speed of movable contact element |
DE102010017900A1 (en) * | 2010-04-21 | 2011-10-27 | Abb Ag | Installation switching device with a double break |
CN102856086B (en) * | 2011-06-29 | 2015-04-29 | 西门子公司 | Switching device |
CN109411247A (en) * | 2017-08-18 | 2019-03-01 | 日立电梯(中国)有限公司 | A kind of switch resilience-proof device |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1048980A (en) | 1950-12-08 | 1953-12-28 | Westinghouse Electric Corp | Damper for circuit breaker |
DE1025041B (en) | 1954-09-03 | 1958-02-27 | Siemens Ag | Electric toggle switch |
US3443253A (en) * | 1966-12-05 | 1969-05-06 | Babcock Electronics Corp | Armature damping structure |
DE2037552A1 (en) | 1970-07-29 | 1972-02-03 | Siemens Ag | Circuit breaker, especially residual current circuit breaker |
US4563557A (en) * | 1984-09-28 | 1986-01-07 | Westinghouse Electric Corp. | Molded case circuit breaker with a movable contact arm shock absorbing member |
US4650946A (en) * | 1985-11-27 | 1987-03-17 | Westinghouse Electric Corp. | Circuit breaker with stop plate for contact arm |
JPH067552Y2 (en) * | 1986-08-04 | 1994-02-23 | 三菱電機株式会社 | Multi-pole circuit breaker |
US4891617A (en) * | 1988-08-01 | 1990-01-02 | Westinghouse Electric Corp. | Rubber stops in outside poles |
US5023583A (en) * | 1988-10-21 | 1991-06-11 | Westinghouse Electric Corp. | Circuit breaker contact operating structure |
US5089795A (en) * | 1990-06-29 | 1992-02-18 | General Electric Company | Compact molded case circuit breaker with movable contact arm rebound cushion |
US5192841A (en) * | 1991-11-06 | 1993-03-09 | Westinghouse Electric Corp. | Circuit breaker with shock absorbing mechanism |
DE4201956A1 (en) | 1992-01-24 | 1993-07-29 | Siemens Ag | Contact arrangement for vacuum switches with coaxial contacts - has shock absorber between current lead to movable contact and coupling stage of driver |
DE29510909U1 (en) | 1995-07-06 | 1995-09-14 | Klöckner-Moeller GmbH, 53115 Bonn | Current limiting contact system with delayed release of the electrodynamically actuated moving contact |
-
1997
- 1997-03-27 DE DE19712958A patent/DE19712958C1/en not_active Expired - Fee Related
-
1998
- 1998-03-11 DE DE59806727T patent/DE59806727D1/en not_active Expired - Fee Related
- 1998-03-11 AU AU70334/98A patent/AU7033498A/en not_active Abandoned
- 1998-03-11 AT AT98916914T patent/ATE230155T1/en not_active IP Right Cessation
- 1998-03-11 WO PCT/EP1998/001386 patent/WO1998044524A1/en active IP Right Grant
- 1998-03-11 US US09/381,875 patent/US6246021B1/en not_active Expired - Fee Related
- 1998-03-11 EP EP98916914A patent/EP0970497B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9844524A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE230155T1 (en) | 2003-01-15 |
AU7033498A (en) | 1998-10-22 |
EP0970497B1 (en) | 2002-12-18 |
DE19712958C1 (en) | 1998-05-07 |
DE59806727D1 (en) | 2003-01-30 |
WO1998044524A1 (en) | 1998-10-08 |
US6246021B1 (en) | 2001-06-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0148111B1 (en) | Contact system with an electrodynamic opening | |
DE3528720A1 (en) | SHOCK ABSORBER FOR MOVING MACHINE PARTS | |
EP3433867B1 (en) | Coupling element for an electrical switching device | |
EP0970497B1 (en) | Switching device | |
DE2626515B2 (en) | HIGH VOLTAGE GENERATORS | |
DE102015211030A1 (en) | Fast closing switching element | |
DE10033772A1 (en) | Lock arrangement, in particular for a motor vehicle front hood | |
EP0268937B1 (en) | Electric contact device | |
DE60029386T2 (en) | Fast control device for a high voltage switching device, in particular a grounding switch | |
DE2443771C3 (en) | Current limit switch | |
EP1895556A1 (en) | Drive unit | |
DE102016208270A1 (en) | Coupling member for an electrical switching device with pulse mass element | |
DE3906786C2 (en) | ||
DE3313729C2 (en) | High voltage switch | |
EP0468272B1 (en) | Electrical switching device | |
EP3830857A1 (en) | Quick release latch, release mechanism and quick earthing device, high-speed switch or short circuiter | |
EP2992543B1 (en) | Switching unit, in particular circuit breaker | |
DE2932355C2 (en) | Storage drive | |
EP4296120A1 (en) | Shock absorbing vehicle headlight system | |
DE102006048124A1 (en) | Catching device for a drive train | |
DE2001756C (en) | Electric inertia switch | |
EP0599342B1 (en) | Electric switching device | |
DE2215535A1 (en) | SWITCH DRIVE FOR CIRCUIT BREAKER | |
DE7001274U (en) | INERTIA SWITCH | |
WO2006125587A1 (en) | Stopping device for transport elements of a transport system |
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 |
|
17P | Request for examination filed |
Effective date: 19990828 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT CH DE FR GB IT LI |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AT CH DE FR GB IT LI |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 20020318 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT CH DE FR GB IT LI |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20021218 |
|
REF | Corresponds to: |
Ref document number: 230155 Country of ref document: AT Date of ref document: 20030115 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 59806727 Country of ref document: DE Date of ref document: 20030130 Kind code of ref document: P Ref document number: 59806727 Country of ref document: DE Date of ref document: 20030130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030311 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030331 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030331 |
|
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 20021218 |
|
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 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
26N | No opposition filed |
Effective date: 20030919 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20090324 Year of fee payment: 12 Ref country code: DE Payment date: 20090320 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20090312 Year of fee payment: 12 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20101130 |
|
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: 20100331 |
|
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: 20101001 |
|
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: 20100311 |