EP0299291A1 - Disjoncteur de ligne - Google Patents
Disjoncteur de ligne Download PDFInfo
- Publication number
- EP0299291A1 EP0299291A1 EP88110489A EP88110489A EP0299291A1 EP 0299291 A1 EP0299291 A1 EP 0299291A1 EP 88110489 A EP88110489 A EP 88110489A EP 88110489 A EP88110489 A EP 88110489A EP 0299291 A1 EP0299291 A1 EP 0299291A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pawl
- shorter
- point
- latching
- partial
- 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
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/505—Latching devices between operating and release 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
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/527—Manual reset mechanisms which may be also used for manual release actuated by lever making use of a walking beam with one extremity latchable, the other extremity actuating or supporting the movable contact and an intermediate part co-operating with the actuator
-
- 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
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H2071/0292—Housing or frames containing grooves or slots for guiding movable parts
Definitions
- the invention relates to a circuit breaker, the switch lock has a rotatably mounted pawl, which on the one hand carries a contact piece and on the other hand is latched to a release element, with a manual actuator and at least one switching spring acting on the pawl.
- circuit breakers which are made up of a few components, and especially those whose movable parts of the switch lock are mounted directly in the housing walls, are particularly sensitive in practice to deviations in the dimensions of components. When stored in plastic housing walls, there are further deviations with aging that can impair the function of the circuit breaker. A remedy has so far been sought in the complex oversizing of the triggering elements. On the other hand, for reasons of economy, efforts are made to construct circuit breakers from as few components as possible.
- the invention is further based on the finding that, particularly when the switching spring acts on a contact lever which is rotatably mounted in the pawl and at the same time provides the contact force, the latching force, that is to say the force between the pawl on its support on the trigger element, is relatively high, which is what can cause further irregularities in the tripping behavior of such a circuit breaker due to friction and interlocking.
- the object of the invention is to increase the functional reliability of a circuit breaker of the type described at the outset, that is to say from a few components, and to implement it economically.
- the pawl is interrupted close to the latching point by a coupling point, so that there is a shorter partial pawl between its latching point and a support on the housing beyond the coupling point and a longer partial pawl which is between the Coupling point and extends at least until the switching spring engages, the partial pawls overlap in the coupling point and the shorter partial pawl rotatably mounted in a link guide between its latching point and its support on the housing, so that at least on the shorter partial pawl a reduction in force to the latching point by choice the lever arms, from coupling point to support on the housing and to the latching point.
- the triggering element is decoupled in terms of movement from the actual switching lock, so that changes in length of the uncoupled partial pawl are not transmitted via the short partial pawl with the support on the triggering element.
- the reduction in force to the latching point leads to a smaller required release work and to less influence of scatter of the release work on the release behavior.
- a switch is known (US Pat. No. 2,190,517) which has a shorter and a longer pawl about a common pivot point, the pawl being effected by a heat-sensitive spring which overcompensates the force of the switching spring when jumping off the shorter pawl and a Lifts the contact piece at the free end of the longer pawl from a fixed mating contact.
- the switching spring also provides the contact force; in practice, however, the resilient bimetal bracket limits the area of application of such a switch.
- the joint storage of the partial pawls cannot achieve a decoupling of sliding movements of the longer partial pawl from the shorter partial pawl. With such a structure, no force reduction can be achieved to the latching point.
- the coupling point can be at least approximately in the axis of rotation of the shorter pawl.
- the shorter partial pawl can in particular be a molded part made of insulating material, which not only facilitates the production of more complicated shapes, but also provides an electrical separation between the pawl and the trigger element, so that the latching point cannot be impaired by arcing.
- the shorter pawl forms the coupling point on one side of a pocket-shaped one Recording, the other side of which is extended to form an arm which, when latched back in the open position after a release, lies against a guide contour which aligns the shorter pawl in the direction of the imaginary longitudinal axis of the longer pawl. This ensures that the latching back is simple.
- the circuit breaker according to FIG. 1 has a switch lock with a rotatably mounted pawl 1, which on the one hand carries a contact piece 2 and on the other hand is latched to a release element 3.
- a manual actuator 4 and a switching spring 5 act on the pawl.
- the contact piece 2 is arranged on a contact lever 6 which is rotatably mounted in the pawl 1.
- the switching spring 5 engages the free end of the contact lever and thereby also supplies the contact force for the switching contact, which is formed from the movable contact piece 2 and the fixed contact piece 7. Extinguishing plates can be arranged between the contact pieces in a known manner, but are unnecessary for simple switching tasks.
- the circuit breaker can be snapped onto mounting rails in the usual way using a snap device 8.
- the trigger element can also be a conventional electromagnetic or thermal trigger.
- the pawl 1 is rotatably mounted in a pawl lever 9, the pawl lever being guided in a pawl lever link 10 in the exemplary embodiment in such a way that an approximately constant distance from the latching point 11 is created in the release member 3.
- the pawl lever 9 is connected eccentrically to the axis of rotation 12 of the manual control member 4.
- the contact lever 6 is rotatably held in the pawl 1 by an imaginary axis 13.
- the pawl 1 is interrupted by a coupling point close to the latching point 11, so that a shorter partial pawl 14 and a longer partial pawl 15 are formed.
- the shorter partial pawl extends between the latching point 11 and a support 16 on the housing beyond the coupling point.
- the longer partial pawl 15 extends between the coupling point and at least until the switching spring 5 engages. In the exemplary embodiment, this is the axis 13 for the contact lever 6.
- the shorter partial pawl 14 and the longer partial pawl 15 overlap in the direction of extension of the pawl.
- the shorter pawl 14 is rotatably mounted in a link guide 17 between its latching point 11 and its support 16 on the housing.
- a support 16 is expediently designed by suitable recesses on webs on both sides of the housing walls symmetrical to the imaginary longitudinal axis of the pawl.
- a force reduction to the latching point 11 is achieved by a suitable choice of the lever arms, from the coupling point to the support 16 on the housing on the one hand and on the other hand from the coupling point to the latching point 11.
- the lever arm from the coupling point to the support 16 is correspondingly shorter than the lever arm from the coupling point to the latching point 11.
- the coupling point is approximately in the axis of rotation 18 of the shorter partial pawl 14.
- the shorter partial pawl 14 forms a spherical support for the longer partial pawl 15 at two coordinates in a plane perpendicular to the plane of the drawing, as a result of which tilting between the partial pawls does not influence the release behavior.
- the shorter partial pawl 14 is a molded part made of insulating material, so that the switching contact consists of the contact pieces 2 and 7 is electrically isolated from the trigger member 3.
- the shorter partial pawl 14 is also stretched and spherical at the latching point 11 to two coordinates of the latching plane perpendicular to the plane of the drawing and approximately in the direction of the latch. As a result, canting between release element 3 and the shorter pawl have no influence on the release behavior.
- the switching state according to FIG. 1 changes to that according to FIG. 2 to the state according to FIG. 3.
- the manual control element 4 has a guide lip 19 for the switching spring 5, which is designed so that in the position of free release, when the manual control element 4 is held by hand, the circuit breaker responds and the release element 3 releases the pawl 1, then the switching spring 5 above the fulcrum 12 of the manual control element 4.
- the switching position of the free trip is illustrated in Fig. 5.
- the switching spring 5 can contract quite a bit, and an unstable state is formed with regard to the torque caused by the tensile force of the switching spring 5, so that the internal spring forces which want to bring about a straight position, after releasing the manual control element 4, in this transfer the position according to FIG. 1.
- the switching state shortly before relinking is illustrated in FIG. 6.
- the manual control element 4 is configured in the form of a roller, as illustrated in the figures. 5 in the switch-on position according to FIG. 3, the manual control element 4, after being released, only to be transferred from the switch-off position to the switch-on position: if the manual control element 4 moves clockwise after the release according to FIG. During this process, the position of the pawl lever 9 and the imaginary axis of the switching spring 5 increasingly diverge until they have reached the position shown in FIG. 1. As a result, the torque exerted by the switching spring 5 becomes increasingly larger, so that an increasing releasing force is achieved.
- the shorter partial pawl 14 is lifted from its support points in the switched-on position.
- the longer partial pawl 15 transmits contact force to the latching point 11 via the coupling point to the shorter partial pawl 14.
- the longer partial pawl 15 braces with the shorter partial pawl 14 until it is placed on the supports 16 on the housing.
- the shorter partial pawl 14 takes its supports 16 from recesses in webs of the housing walls a.
- the longer partial pawl 15 has approximately a point support at the coupling point on the shorter partial pawl 14, particularly in the case of a spherical support, which enables compensating sliding movements in the direction of the pawl and Canting tolerated.
- the switching spring 5 causes the shorter partial pawl 14 to rotate counterclockwise while the supports 16 are ingested, thereby the horizontal projection of the shorter pawl is shortened and the pawl is also released from its supports 16.
- the shorter partial pawl and the longer partial pawl can then be moved up to the switching position of the free release according to FIG. 5.
- 4 shows the state of the unlatching with the shorter partial pawl 14 resting on the supports 16. In comparison to the switching position according to FIG. 3, the shorter partial pawl 14 is already twisted a little.
- the shorter partial pawl 14 is to be turned clockwise, which in the exemplary embodiment is made possible by an arm 20 on the shorter partial pawl 14, which is bears against a guide contour 21 for the rear latching: the shorter partial latch 14 forms the coupling point on one side of a pocket-shaped receptacle 22 according to FIG. 7, the other side of which is extended to form an arm 20.
- This arm 20 can lie in the open position after a release against a guide contour 21 which aligns the shorter partial pawl 14 in the direction of the imaginary longitudinal axis of the longer partial pawl 15 in the event of a rear latching.
- FIG. 8 The components shown in the exploded view according to FIG. 7 are assembled in FIG. 8 in supervision illustrated.
- the latching point 11, the coupling point 23 and the supports 16 on the housing walls are illustrated there.
Landscapes
- Breakers (AREA)
- Catching Or Destruction (AREA)
- Mechanisms For Operating Contacts (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3723122 | 1987-07-13 | ||
DE3723122 | 1987-07-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0299291A1 true EP0299291A1 (fr) | 1989-01-18 |
EP0299291B1 EP0299291B1 (fr) | 1992-04-15 |
Family
ID=6331476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88110489A Expired - Lifetime EP0299291B1 (fr) | 1987-07-13 | 1988-06-30 | Disjoncteur de ligne |
Country Status (14)
Country | Link |
---|---|
EP (1) | EP0299291B1 (fr) |
CN (2) | CN1031444A (fr) |
AU (1) | AU602777B2 (fr) |
BR (1) | BR8803504A (fr) |
DE (1) | DE3870063D1 (fr) |
EG (1) | EG18881A (fr) |
ES (1) | ES2030470T3 (fr) |
GR (1) | GR3004924T3 (fr) |
IL (1) | IL87063A (fr) |
IN (1) | IN168928B (fr) |
MY (1) | MY103314A (fr) |
PT (1) | PT87967B (fr) |
TR (1) | TR23732A (fr) |
ZA (1) | ZA885010B (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0441637A1 (fr) * | 1990-02-07 | 1991-08-14 | Mk Electric Limited | Perfectionnements aux ou relatifs aux interrupteurs électriques |
EP0563368A1 (fr) * | 1991-10-18 | 1993-10-06 | Square D Co | Disjoncteur de limitation du courant. |
DE19919420A1 (de) * | 1999-04-28 | 2000-11-02 | Siemens Ag | Schutzschalteinrichtung, beispielsweise Leitungsschutzschalter |
AT408929B (de) * | 1995-07-28 | 2002-04-25 | Felten & Guilleaume Ag Oester | Einpoliger ausschalter |
DE102007010270B3 (de) * | 2007-03-02 | 2008-09-04 | Siemens Ag | Fehlerstromschutzschalter |
WO2016079444A1 (fr) * | 2014-11-21 | 2016-05-26 | Socomec | Système de commande a déclenchement pour pôle de coupure et appareil de coupure |
FR3033446A1 (fr) * | 2015-03-06 | 2016-09-09 | Socomec Sa | Systeme de commande de pole de coupure avec forcage et appareil de coupure |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101826425B (zh) * | 2010-04-19 | 2012-05-23 | 常熟开关制造有限公司(原常熟开关厂) | 电开关的操作机构 |
CN103000437B (zh) * | 2011-09-15 | 2015-09-23 | 西门子公司 | 合闸机构及包括该合闸机构的隔离开关 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2166545A (en) * | 1938-05-17 | 1939-07-18 | Trumbull Electric Mfg Co | Electric switch |
US2190517A (en) * | 1936-12-17 | 1940-02-13 | Westinghouse Electric & Mfg Co | Circuit breaker |
EP0047847A1 (fr) * | 1980-09-15 | 1982-03-24 | Siemens Aktiengesellschaft | Disjoncteur de protection |
EP0188143A1 (fr) * | 1984-12-13 | 1986-07-23 | Telemecanique | Appareil interrupteur de protection |
-
1988
- 1988-05-04 TR TR88/0324A patent/TR23732A/xx unknown
- 1988-06-20 IN IN504/CAL/88A patent/IN168928B/en unknown
- 1988-06-30 EP EP88110489A patent/EP0299291B1/fr not_active Expired - Lifetime
- 1988-06-30 DE DE8888110489T patent/DE3870063D1/de not_active Expired - Fee Related
- 1988-06-30 ES ES198888110489T patent/ES2030470T3/es not_active Expired - Lifetime
- 1988-07-09 CN CN88104377A patent/CN1031444A/zh active Granted
- 1988-07-09 CN CN88104377D patent/CN1022272C/zh not_active Expired - Fee Related
- 1988-07-11 EG EG37988A patent/EG18881A/xx active
- 1988-07-11 MY MYPI88000763A patent/MY103314A/en unknown
- 1988-07-11 IL IL87063A patent/IL87063A/xx not_active IP Right Cessation
- 1988-07-12 BR BR8803504A patent/BR8803504A/pt not_active IP Right Cessation
- 1988-07-12 AU AU18953/88A patent/AU602777B2/en not_active Ceased
- 1988-07-12 ZA ZA885010A patent/ZA885010B/xx unknown
- 1988-07-12 PT PT87967A patent/PT87967B/pt not_active IP Right Cessation
-
1992
- 1992-06-17 GR GR920400689T patent/GR3004924T3/el unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2190517A (en) * | 1936-12-17 | 1940-02-13 | Westinghouse Electric & Mfg Co | Circuit breaker |
US2166545A (en) * | 1938-05-17 | 1939-07-18 | Trumbull Electric Mfg Co | Electric switch |
EP0047847A1 (fr) * | 1980-09-15 | 1982-03-24 | Siemens Aktiengesellschaft | Disjoncteur de protection |
EP0188143A1 (fr) * | 1984-12-13 | 1986-07-23 | Telemecanique | Appareil interrupteur de protection |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0441637A1 (fr) * | 1990-02-07 | 1991-08-14 | Mk Electric Limited | Perfectionnements aux ou relatifs aux interrupteurs électriques |
US5173676A (en) * | 1990-02-07 | 1992-12-22 | M.K. Electric Limited | Electric switches |
EP0563368A1 (fr) * | 1991-10-18 | 1993-10-06 | Square D Co | Disjoncteur de limitation du courant. |
EP0563368A4 (fr) * | 1991-10-18 | 1994-03-17 | Square D Co | Disjoncteur de limitation du courant. |
AT408929B (de) * | 1995-07-28 | 2002-04-25 | Felten & Guilleaume Ag Oester | Einpoliger ausschalter |
DE19919420A1 (de) * | 1999-04-28 | 2000-11-02 | Siemens Ag | Schutzschalteinrichtung, beispielsweise Leitungsschutzschalter |
DE102007010270B3 (de) * | 2007-03-02 | 2008-09-04 | Siemens Ag | Fehlerstromschutzschalter |
WO2016079444A1 (fr) * | 2014-11-21 | 2016-05-26 | Socomec | Système de commande a déclenchement pour pôle de coupure et appareil de coupure |
FR3029009A1 (fr) * | 2014-11-21 | 2016-05-27 | Socomec Sa | Systeme de commande a declenchement pour pole de coupure et appareil de coupure |
CN107112170A (zh) * | 2014-11-21 | 2017-08-29 | 溯高美公司 | 用于断路器极柱和断路器装置的触发式控制系统 |
US10020142B2 (en) | 2014-11-21 | 2018-07-10 | Socomec | Trippable control system for a breaker pole and breaker gear |
CN107112170B (zh) * | 2014-11-21 | 2019-07-05 | 溯高美公司 | 用于断路器极柱和断路器装置的触发式控制系统 |
FR3033446A1 (fr) * | 2015-03-06 | 2016-09-09 | Socomec Sa | Systeme de commande de pole de coupure avec forcage et appareil de coupure |
WO2016142605A1 (fr) * | 2015-03-06 | 2016-09-15 | Socomec | Systeme de commande de pole de coupure avec forçage et appareil de coupure |
US10008355B2 (en) | 2015-03-06 | 2018-06-26 | Socomec | Control system for a breaker pole with forcing, and breaker gear |
Also Published As
Publication number | Publication date |
---|---|
ZA885010B (en) | 1989-03-29 |
IN168928B (fr) | 1991-07-13 |
AU1895388A (en) | 1989-01-19 |
CN1031444A (zh) | 1989-03-01 |
CN1022272C (zh) | 1993-09-29 |
PT87967B (pt) | 1994-01-31 |
IL87063A (en) | 1992-02-16 |
GR3004924T3 (fr) | 1993-04-28 |
IL87063A0 (en) | 1988-12-30 |
BR8803504A (pt) | 1989-01-31 |
TR23732A (tr) | 1990-07-30 |
PT87967A (pt) | 1989-06-30 |
AU602777B2 (en) | 1990-10-25 |
ES2030470T3 (es) | 1992-11-01 |
DE3870063D1 (de) | 1992-05-21 |
EG18881A (en) | 1994-04-30 |
MY103314A (en) | 1993-05-29 |
EP0299291B1 (fr) | 1992-04-15 |
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