EP0571258B1 - Appareil interrupteur de protection - Google Patents
Appareil interrupteur de protection Download PDFInfo
- Publication number
- EP0571258B1 EP0571258B1 EP93401255A EP93401255A EP0571258B1 EP 0571258 B1 EP0571258 B1 EP 0571258B1 EP 93401255 A EP93401255 A EP 93401255A EP 93401255 A EP93401255 A EP 93401255A EP 0571258 B1 EP0571258 B1 EP 0571258B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- cocking
- opening
- axis
- fact
- 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
- 230000001681 protective effect Effects 0.000 title claims description 4
- 230000001960 triggered effect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000007704 transition Effects 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
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting 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
- H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel
-
- 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
- H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
- H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
- H01H89/08—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device with both devices using the same contact pair
Definitions
- the present invention relates to a protective switch device such as a circuit breaker, comprising at least one pole having at least one movable contact cooperating with a fixed contact and magnetic and / or thermal tripping means ensuring the protection against overloads and overcurrents and acting on a control mechanism operating said movable contact and capable of being actuated by a control button rotary rotating around a mechanism axis.
- Protection switch devices such as contactors and circuit breakers include, for each pole, a contact bridge capable of being moved relative to the contacts fixed. In the event of an electrical fault on at least one of the poles, a magnetic and / or thermal tripping is likely to cause the opening of contacts.
- This trigger mechanism acts on a control mechanism called lock described for example in document EP 114 542.
- This control mechanism can also be actuated manually by a manual control button so as to move the movable contacts relative to the fixed contacts via a switch controlling the electromagnet.
- the object of the present invention is to provide a control mechanism for an apparatus for protection such as contactor-circuit breaker whose design is simple and whose assembly is easy to do.
- the constituent parts of the mechanism are limited.
- the resetting of the mechanism is possible from “triggered” to “stop” or from “triggered” to “market”.
- control mechanism includes a lever of opening the contacts pivoting around the axis of the mechanism, an arming lever pivoting around the axis of the mechanism (14) and capable of keep the opening lever in the running position where this assembly is immobilized by a lock, triggering means controlling the mechanical release of the opening lever with respect to the cocking lever, a balance attached to the button and acting on the movable contact and the coil contact and likely to pivot around the axis when operating the button from the on position to the off position and pivot under the action of the opening lever when it is released from the on position and allowing return the cocking lever and the opening lever to the position triggered in the on position.
- the arming lever is associated with hooking means likely to ensure a connection in rotation with the opening lever.
- the means hooking consist of a movable hook around the axis of mechanism.
- the protection switch of the contactor-circuit breaker type, which is shown in FIG. 1, includes one or more poles 1 housed in a housing 2. Each pole 1 includes fixed and mobile parts supporting separable contacts.
- FIG. 1 A single pole 1, of the double break type, is shown in FIG. 1.
- This pole comprises conductors 3 connecting the connection terminals to the fixed contacts and a bridge movable contact 4 carrying the movable contacts.
- the movable bridge 4 cooperates, by contact pads, with the fixed contacts to establish or interrupt the passage of a power current between the connection terminals.
- This movable bridge 4 is mounted in a movable contact carrier assembly 5 which slides in the housing, perpendicular to the plane passing through the fixed contacts.
- This contact carrier assembly 5 comprises a sliding support 6 and a slide 7 guided in a housing of this sliding support.
- This slide 7 is integral in translation with the contact bridge 4. It is subjected to a contact pressure spring which tends to move the contact bridge 4 by relative to the sliding support 6, in the closing direction of the contacts.
- the spring of pressure of the contacts works in compression, is supported on the sliding support 6 and pushes back, in the closing direction of the contacts, the slide 7 and the contact bridge 4.
- a set 8 of magnetic and thermal trip is arranged on each path of current, in the housing 2.
- This set 8 of magnetic and thermal trigger includes, for example, for each pole, a magnetic trigger and a trigger thermal.
- the set 8 detects an overcurrent on the current path, it acts, via a control mechanism 9 and a deflector lifter 10, on the or the slides 7 for moving the contact bridges 4.
- An electromagnet 11 is housed in the housing to actuate the contact carrier assembly 5. It includes a fixed magnetic circuit, a movable armature and a connected coil electrically to terminals by a switch. The latter can be ordered by mechanism 9 or by a rotary control button 12 capable of acting on the mechanism to open the contacts.
- the armature of the electromagnet is subject to a return spring and cooperates with a lever 111 which is directly coupled to the sliding support 6.
- the contact carrier assembly 5 is therefore subjected to the return spring of the electromagnet which tends to move it to the open position (contacts open).
- An opening lever 20 is mounted to rotate freely around the mechanism axis 14. This opening lever 20 is subjected to an opening spring, not shown, which tends to do so rotate from the "on" position to the "tripped" position.
- An arming lever 15 is guided in rotation along the axis of the mechanism 14 so as to pivot between a "on” position (figure 3) and a “tripped” position (figure 5).
- This cocking lever 15 pivots from the “on” position to the “tripped” position to grip the opening lever 20 and returns from the "tripped” position to the "on” position with the opening lever 20.
- the arming lever 15 is subject to a cocking mechanism composed of a cocking piece 16 pivotally mounted around a axis 161 and subjected to an arming spring 17.
- the mechanical connection in rotation between the pivoting cocking lever 15 and the cocking piece 16 is effected by means of a training piece 18.
- the arming piece 16 is unlocked by the opening lever 20 when the latter acts on the tilting latch 19.
- a cocking hook 21 is pivotally mounted, around an axis 151, on the cocking lever 15 and is subjected to a return spring 22. It maintains this opening lever 20 in the “on” or “triggered” position.
- the cocking hook 21 releases the opening lever 20 which is subjected to the opening spring acting on the deflector lifter 10. Consequently, the opening lever 20 pivots from the “on” position to the "tripped” position.
- the lever opening 20 acts on the latch 19 to release the arming piece 16. This actuates the cocking lever 15 which pivots from the “on” position to the “tripped” position and comes to grip the opening lever 20, via the cocking hook 21.
- the thermal trigger and the magnetic trigger of the assembly 8 act on a trigger mechanism capable of releasing the opening lever 20 from the cocking lever 15 so as to trigger the passage from the "on" position (FIG. 3) to the position "triggered” ( Figure 5).
- This trigger mechanism acts on the arming hook 21 by means of a tilting pusher 25.
- This tilting pusher 25 is pivotally mounted around the axis 161 and is subjected to a spring 26.
- This spring 26 is mounted between a pin 252 of the pusher 25 and a pin 242 of the trigger lock 24. It tends to rotate the rocking push-button 25 in the opening direction of the cocking hook 21.
- the trigger has a pivoting trigger lock 24 which can pivot around an axis 241, either under the action of the thermal trigger 81 or the trigger magnetic 82. By pivoting, the trigger lock 24 releases the rocking pusher 25 subjected to the action of a spring 26. The rocking pusher 25 opens the cocking hook 21 which releases the opening lever 20.
- the tilting pusher 25 cooperates with a reset lever 32 pivotally mounted around the fixed axis 241 and connected by an axis 321 to the arming part 16.
- This rearming lever 32 acts on an axis 251 of the rocking pusher 25 so as to reset it.
- the axis of the mechanism 14 which carries the rotary button 12 for manual control is integral a balance 29.
- the assembly consisting of the balance 29, the axis 14 and the button control 12 is connected by a tension spring 27 to a crank 28 which can pivot freely, around the axis of mechanism 14, between two positions.
- Spring 27 is mounted between a pin 291 secured to the balance 29 and a pin 281 secured to the crank 28.
- the plates 13a-13b are identical, are assembled symmetrically and the parts swivels of the lock are mounted between them. Most springs can be put in place after the parts and the plates are assembled which facilitates the assembly.
- the thermal trip element 81 is mounted on a part 33 whose position by relative to the plate 13a-13b can be adjusted at the factory and by the customer.
- the pendulum 29 actuated by the rotary button 12 ensures a forced opening of the coil contact and power contacts as well as the coil contact, going to the "off" position. This position can only be indicated if all the contacts are actually open.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Description
- la figure 1 représente schématiquement, en élevation, un appareil de protection conforme à un mode de réalisation de l'invention;
- la figure 2 est un schéma, en élevation, du mécanisme de commande de l'appareil selon un mode de réalisation de l'invention;
- la figure 3 est un schéma simplifié du mécanisme de commande représenté en position "marche";
- la figure 4 est un schéma simplifié du mécanisme de commande représenté en position "arrêt";
- la figure 5 est un schéma simplifié du mécanisme de commande représenté en position "déclenché".
Claims (6)
- Appareil interrupteur de protection tel que contacteur-disjoncteur, comprenant au moins un pôle (1) ayant au moins un contact mobile (4) coopérant avec un contact fixe (3) et des moyens de déclenchement magnétique et/ou thermique (8) assurant la protection contre les surcharges et surintensités et agissant sur un mécanisme de commande (9) manoeuvrant ledit contact mobile (4) et pouvant être actionné par un bouton rotatif (12) tournant autour d'un axe de mécanisme (14), caractérisé par le fait que le mécanisme de commande (9) comprend un levier (20) d'ouverture des contacts pivotant autour de l'axe de mécanisme (14), un levier d'armement (15) pivotant autour de l'axe de mécanisme (14) et apte à maintenir le levier d'ouverture (20) en position de marche où cet ensemble est immobilisé par un verrou (19), des moyens de déclenchement (8) commandant la libération mécanique du levier d'ouverture (20) vis à vis du levier d'armement (15), un balancier (29) solidaire du bouton (12) et agissant sur le contact mobile (4) et le contact bobine et susceptible de pivoter autour de l'axe (14) lorsqu'on manoeuvre le bouton (12) de la position marche à la position arrêt et de pivoter sous l'action du levier d'ouverture lorsque celui-ci est libéré de la position marche et permettant de ramener le levier d'armement (15) et le levier d'ouverture (20) de la position déclenchée à la position de marche.
- Appareil selon la revendication 1, caractérisé par le fait qu'il comprend une pièce d'armement (16) pivotant autour de l'axe de mécanisme et soumise à un ressort d'armement (17) et associée au levier d'armement (15) pivotant.
- Appareil selon l'une quelconque des revendications précédentes, caractérisé par le fait que le levier d'armement (15) est associé à des moyens d'accrochage (21) susceptibles d'assurer une liaison en rotation avec le levier d'ouverture (20).
- Appareil selon la revendication 3, caractérisé par le fait que les moyens d'accrochage sont constitués par un crochet (21) mobile autour de l'axe de mécanisme (14).
- Appareil selon l'une quelconque des revendications 2 à 4, caractérisé par le fait que le verrou (19) assure l'immobilisation de la pièce d'armement (16) en position "marche" et libére la dite pièce (16) sous l'action du levier d'ouverture (20) de manière que le levier d'armement (15) vienne accrocher le levier d'ouverture (20) en position de déclenchement de manière à permettre de ramener cet ensemble (15, 20) en position "marche".
- Appareil selon l'une quelconque des revendications 3 à 5, caractérisé par le fait qu'il comporte un poussoir (25) susceptible de libérer le levier d'ouverture (20) du levier d'armement (15) en agissant sur le crochet (21) ceci sous l'action de moyens de déclenchement magnétique et/ou thermique (8).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9206270A FR2691576B1 (fr) | 1992-05-22 | 1992-05-22 | Appareil interrupteur de protection. |
FR9206270 | 1992-05-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0571258A1 EP0571258A1 (fr) | 1993-11-24 |
EP0571258B1 true EP0571258B1 (fr) | 1999-09-15 |
Family
ID=9430073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93401255A Expired - Lifetime EP0571258B1 (fr) | 1992-05-22 | 1993-05-14 | Appareil interrupteur de protection |
Country Status (4)
Country | Link |
---|---|
US (1) | US5339060A (fr) |
EP (1) | EP0571258B1 (fr) |
DE (1) | DE69326380T2 (fr) |
FR (1) | FR2691576B1 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5500630A (en) * | 1994-10-13 | 1996-03-19 | Square D Company | Solid state overload relay mechanism |
DE19617136C2 (de) * | 1996-04-29 | 2000-05-11 | Siemens Ag | Schaltgerät |
FR2799573B1 (fr) * | 1999-10-11 | 2001-12-14 | Schneider Electric Ind Sa | Mecanisme de commande de disjoncteur |
DE102006055007A1 (de) * | 2006-11-22 | 2008-05-29 | Abb Ag | Installationsschaltgerät mit einer Doppelunterbrechung |
DE102008016036A1 (de) * | 2008-03-28 | 2009-10-01 | Abb Ag | Installationsschaltgerät mit einer Doppelunterbrechung |
US8476996B2 (en) * | 2010-08-31 | 2013-07-02 | Chih-Chuan Liang | Bistable switching method and latching relay using the same |
DE102011008831A1 (de) * | 2011-01-19 | 2012-07-19 | Abb Ag | Istallationsschaltgerät |
FR2999791B1 (fr) * | 2012-12-18 | 2015-01-02 | Schneider Electric Ind Sas | Dispositif modulaire de commutation electrique comportant au moins un bloc de coupure unipolaire et ensemble de commutation comportant de tels dispositifs |
CN103985619B (zh) * | 2014-06-06 | 2017-01-25 | 佳一电气有限公司 | Cps控制与保护开关电器 |
CN103996552B (zh) * | 2014-06-06 | 2016-04-13 | 佳一电气有限公司 | 用于控制与保护开关的可自动回位电磁操作装置 |
US10002721B1 (en) * | 2017-02-27 | 2018-06-19 | Carling Technologies, Inc. | Multiple contact circuit breaker |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4356368A (en) * | 1980-05-01 | 1982-10-26 | Mcgill Manufacturing Company, Inc. | Auxiliary switch assembly for a power contactor |
FR2538160B1 (fr) * | 1982-12-20 | 1985-12-13 | Telemecanique Electrique | Appareil contacteur a actionnement electromagnetique controle et a ouverture automatique lors de l'apparition de surcharges |
FR2625603B1 (fr) * | 1987-12-30 | 1993-05-07 | Telemecanique Electrique | Appareil interrupteur electrique protege et son dispositif de fixation |
GB2246909B (en) * | 1990-07-16 | 1995-02-22 | Terasaki Denki Sangyo Kk | Circuit breaker including forced contact parting mechanism capable of self-retaining under short circuit condition |
FR2669463B1 (fr) * | 1990-11-15 | 1995-05-12 | Telemecanique | Interrupteur de protection. |
US5241290A (en) * | 1991-12-20 | 1993-08-31 | Square D Company | Compact circuit breaker |
-
1992
- 1992-05-22 FR FR9206270A patent/FR2691576B1/fr not_active Expired - Fee Related
-
1993
- 1993-05-14 DE DE69326380T patent/DE69326380T2/de not_active Expired - Fee Related
- 1993-05-14 EP EP93401255A patent/EP0571258B1/fr not_active Expired - Lifetime
- 1993-05-24 US US08/065,775 patent/US5339060A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2691576B1 (fr) | 1994-07-08 |
US5339060A (en) | 1994-08-16 |
DE69326380T2 (de) | 1999-12-30 |
DE69326380D1 (de) | 1999-10-21 |
FR2691576A1 (fr) | 1993-11-26 |
EP0571258A1 (fr) | 1993-11-24 |
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