EP1544884A1 - On board circuit breaker with reset authorization mechanism - Google Patents
On board circuit breaker with reset authorization mechanism Download PDFInfo
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- EP1544884A1 EP1544884A1 EP04354036A EP04354036A EP1544884A1 EP 1544884 A1 EP1544884 A1 EP 1544884A1 EP 04354036 A EP04354036 A EP 04354036A EP 04354036 A EP04354036 A EP 04354036A EP 1544884 A1 EP1544884 A1 EP 1544884A1
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- EP
- European Patent Office
- Prior art keywords
- circuit breaker
- circuit
- actuator
- breaker
- reset
- 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.)
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- 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
- H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
Definitions
- the invention relates to an on-board circuit breaker with a centering key, possessing a reset authorization function.
- Circuit breakers are commonly used, whose function is to interrupt a electrical connection when a particular condition is detected. Very many Cutoff conditions can be defined and are known per se.
- circuit breakers There are different types of circuit breakers, including structures and operations depend on the area of application. So when the breaker is intended for a fixed installation of housing type or industrial building, it is frequently installed in a cabinet by means of a DIN rail. On the other hand, when the circuit breaker is intended for Embedded system, it is most often inserted in a table of which it is united thanks to conventional fastening means, the correct positioning being ensured by a key centering.
- Such onboard circuit breakers are well known per se.
- circuit breakers operated with mechanical means, including a bimetal whose deformation caused the cut. So when bimetal was crossed by a current too important, the heating of bimetallic provided the cutoff function and protected the system.
- mechanical means including a bimetal whose deformation caused the cut. So when bimetal was crossed by a current too important, the heating of bimetallic provided the cutoff function and protected the system.
- circuit breaker makes an electrical break, there are therefore several cases of possible figures. It can be either a cut related to a thermal trip or a cut related to a trigger on order of the electronic circuit. Circuit breakers current embeddings do not make it possible to differentiate effectively the causes of triggering, in particular with regard to the possibility of rearming the device.
- the invention therefore aims to remedy the disadvantages of the state of the art, by proposing an on-board circuit breaker with a centering key, having a function rearming authorization.
- a circuit breaker according to the invention may be rearmed in the same way as the existing devices, in However, in the event of a trip on the order of the electronic circuit, it will be necessary to carry out an additional authorization action. In this way, the distinction between triggering causes will be immediate, since rearmament will be impossible without to be authorized beforehand.
- the stud (19) passes through the centering key (2) when the circuit breaker is in the tripped position following an order sent by the circuit electronics (14) to the actuator (15).
- the actuator comprises a movable core (17) provided with a rod integral with a washer (22) of larger diameter that the rod, the rod and the washer (22) cooperating with a recess (21) provided in the reset authorization part (18).
- the on-board circuit breaker comprises auxiliary contacts (12) indicating three different states depending on the state of the circuit breaker.
- the circuit breaker comprises communication means suitable for transmit information through the push button.
- Communication means may comprise a light-emitting diode, possibly emitting infrared.
- FIG. 1 represents an on-board circuit breaker with a centering key according to the invention in the engaged position.
- a circuit breaker of this type is rendered secured to a board by tightening a nut coming to press the board on a plate metallic conductor forming mass.
- An actuating pushbutton (1) passes through the table, and a centering key (2) ensures the proper positioning of the device.
- the circuit breaker embedded comprises conventionally a power supply terminal (3) and a terminal distribution (4) and two breaker contacts (5). When the circuit is armed, both circuit breaker contacts (5) establish an electrical connection so that a current electric can freely flow between the two terminals (3, 4).
- a bimetal main (6) causes the opening of the circuit by deforming by heating.
- the deformation of the bimetal (6) is transmitted by the connecting bar (7) and moves the slide (8) until the hook (9) is released.
- the hook (9) is released, the contacts circuit-breakers (5) are separated under the effect of a spring mechanism (10), and the button (1) is moves along its axis under the effect of a spring away from the terminals (3, 4).
- the figure 2 represents a circuit breaker according to the invention in position triggered by deformation thermal of the main bimetallic strip (6).
- the device represented in FIG. 1 also comprises a bimetallic strip compensation (11) whose function is to compensate for the temperature variation of the medium, ie temperature variations that are not related to the electrical current and therefore should not be taken into account to trigger.
- This system is known in self and is optional. Indeed, the invention functions both for the devices of cut-off without bimetallic compensating stripes for switching devices which are equipped like the one shown in FIG. 1. Thus the presence of a bimetallic strip compensation is neither essential for its implementation of the invention, nor rendered impossible by this one.
- auxiliary contacts (12) When the circuit breaker is armed, the auxiliary contacts (12) are open, and when the circuit breaker trips opening the disjunction contacts, the lever (13) pivots and closes the contacts auxiliaries (12).
- This optional system of auxiliary contacts with two states makes it possible to easily check the state of the circuit breaker, and is perfectly compatible with the invention.
- the circuit breaker is provided with an electronic circuit (14) which is electrically connected to the metal plate forming a mass, which measures the characteristics of the circulating current in the device, for example at the level of the main bimetallic strip (6).
- electronic circuit (14) is able to detect particular situations requiring the tripping circuit breaker which comprises for this purpose an actuator (15) which releases the hook (9) on order of the electronic circuit (14).
- the actuator comprises an electromagnet (16) for moving a core (17).
- the core is provided with an actuating rod which is supported on a bracket (18) integral with the connecting bar (7) so that any displacement of the core (17) causes the displacement of the connecting bar (7) until the hook (9) is released.
- the electronic circuit (14) by scanning the characteristics of the electrical signal, is able to detect instantaneous phenomena that do not accumulate average energy sufficient for the main bimetallic strip (6) to trip the circuit breaker. It can be by example of false contacts, or electric arcs. Some of these phenomena have fire hazards. This is why it is better to indicate clearly what was the cause of the trip and to prevent any unintentional rearmament.
- the circuit breaker according to the invention comprises a piece of authorization of resetting (18) provided with a pin (19).
- the reset authorization piece (18) moves under the effect a compression spring (20) and prevents the core (17) from returning to its initial position.
- the pin (19) exits through the centering key (2) as shown in FIG.
- FIGS. 4a and 4b show an exemplary embodiment of the authorization device of reset according to the invention respectively in the engaged position and triggered on electronic circuit order (14).
- the actuating rod the core (17) is integral with a washer (22) whose diameter is larger than that the actuating rod of the core (17).
- the reset authorization part comprises a recess (21), part of which allows the washer (22) to pass so that the core (17) is in the engaged position, and another part allows only the actuating rod of the core (17) but not the washer (22) so as to maintain the circuit breaker in the tripped position.
- circuit order electronics 14
- the device according to the invention is perfectly compatible and can replace a device according to the prior art without having to modify the table.
- the reset authorization part (18) is a security element additional, which does not add any risk of breaker failure. Indeed, even if the reset authorization piece (18) is blocked, the triggering remains possible both by deformation of the main bimetallic strip (6) and by order of the electronic circuit (14).
- the reset authorization part (18) is used to test the electronic chain of trigger.
- the electronic circuit (14) continuously scans the current characteristics.
- the electronic circuit (14) knows that the current was insufficient to deform bimetal (6).
- the electronic circuit (14) then commands the actuator (15) to trigger, which causes the displacement of the core (17) and the exit of the nipple (19) from the reset authorization piece (18) through the centering key (2).
- the exit of pin (19) validates the correct operation of the electronic trigger chain.
- the reset authorization piece (18) is provided with a lug (23) which closes a contact.
- the reset authorization piece (18) moves under the effect of the spring (20) and the contact opens, which has the effect of modifying apparent impedance across the auxiliary contacts (12) and thereby to establish a third state. In this way it is possible to check the state of the circuit breaker and, if it is triggered state, to know what was the trigger mode.
- the circuit breaker according to the invention is also able to dialogue.
- the circuit breaker comprises a diode electroluminescent ordered in order to transmit information.
- informations can for example relate to the state of the electrical system, the state of the device, a description of the context during a trip or any other data known by the circuit electronic (14).
- the light-emitting diode may transmit in the visible spectrum or in the invisible spectrum, for example in the infrared.
- the second solution does not disrupt staff, for example staff flying from an airplane.
- the first solution is compatible with a system of fugitive standby flashing indicating that the cutoff device is powered and in service, the diode being off only when the cut-off device is no longer powered or when the electronic circuit or the diode itself are faulty.
- buttons (1) through which the signal is transmitted By using a transparent button (1) through which the signal is transmitted, one makes the reading of the signal particularly easy.
- the button can indeed very easily be connected to a portable reading system, for example by means of a hood, avoiding thus any transmission error.
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- Breakers (AREA)
- Thermally Actuated Switches (AREA)
Abstract
Description
L'invention est relative à un disjoncteur embarqué avec une clef de centrage, possédant une fonction d'autorisation de réarmement.The invention relates to an on-board circuit breaker with a centering key, possessing a reset authorization function.
On utilise couramment des disjoncteur, qui ont pour fonction d'interrompre une liaison électrique lorsqu'une condition particulière est détectée. De très nombreuses conditions de coupure peuvent être définies et sont connues en soi.Circuit breakers are commonly used, whose function is to interrupt a electrical connection when a particular condition is detected. Very many Cutoff conditions can be defined and are known per se.
Il existe différents types de disjoncteurs, dont les structures et les fonctionnements dépendent du domaine d'application. Ainsi, lorsque le disjoncteur est destiné à une installation fixe de type habitation ou bâtiment industriel, il est fréquemment installé dans une armoire au moyen d'un rail DIN. En revanche, lorsque le disjoncteur est destiné à un système embarqué, il est le plus souvent inséré dans un tableau dont il est rendu solidaire grâce à des moyens de fixations classiques, le bon positionnement étant assuré par une clef de centrage. De tels disjoncteurs embarqués sont parfaitement connus en soi.There are different types of circuit breakers, including structures and operations depend on the area of application. So when the breaker is intended for a fixed installation of housing type or industrial building, it is frequently installed in a cabinet by means of a DIN rail. On the other hand, when the circuit breaker is intended for Embedded system, it is most often inserted in a table of which it is united thanks to conventional fastening means, the correct positioning being ensured by a key centering. Such onboard circuit breakers are well known per se.
Pendant longtemps, les disjoncteurs fonctionnaient avec des moyens mécaniques, comprenant notamment un bilame dont la déformation provoquait la coupure. Ainsi lorsque le bilame était traversé par un courant trop important, l'échauffement du bilame assurait la fonction de coupure et protégeait le système. La technologie évoluant, il est maintenant possible à encombrement égal d'ajouter des fonctions électroniques à ces systèmes mécaniques. Ces fonctions électroniques permettent de détecter d'autres conditions particulières nécessitant une coupure du circuit électrique.For a long time, circuit breakers operated with mechanical means, including a bimetal whose deformation caused the cut. So when bimetal was crossed by a current too important, the heating of bimetallic provided the cutoff function and protected the system. As technology evolves, it is now possible to equal footprint to add electronic functions to these mechanical systems. These electronic functions make it possible to detect other special conditions requiring a break in the electrical circuit.
Lorsque le disjoncteur procède à une coupure électrique, il y a donc plusieurs cas de figures possibles. Il peut s'agir soit d'une coupure liée à un déclenchement thermique soit d'une coupure liée à un déclenchement sur ordre du circuit électronique. Les disjoncteurs embarqués actuels ne permettent pas de différencier efficacement les causes de déclenchement, en particulier en ce qui concerne la possibilité de réarmer le dispositif. When the circuit breaker makes an electrical break, there are therefore several cases of possible figures. It can be either a cut related to a thermal trip or a cut related to a trigger on order of the electronic circuit. Circuit breakers current embeddings do not make it possible to differentiate effectively the causes of triggering, in particular with regard to the possibility of rearming the device.
L'invention vise donc à remédier aux inconvénients de l'état de la technique, en proposant un disjoncteur embarqué avec clef de centrage, possédant une fonction d'autorisation de réarmement. Dans un cas de déclenchement mécanique, un disjoncteur selon l'invention pourra être réarmé de la même manière que les dispositifs existants, en revanche en cas de déclenchement sur ordre du circuit électronique, il sera nécessaire de procéder à une action supplémentaire d'autorisation. De cette manière, la distinction entre les causes de déclenchement sera immédiate, puisque le réarmement sera impossible sans être au préalable autorisé.The invention therefore aims to remedy the disadvantages of the state of the art, by proposing an on-board circuit breaker with a centering key, having a function rearming authorization. In a case of mechanical tripping, a circuit breaker according to the invention may be rearmed in the same way as the existing devices, in However, in the event of a trip on the order of the electronic circuit, it will be necessary to carry out an additional authorization action. In this way, the distinction between triggering causes will be immediate, since rearmament will be impossible without to be authorized beforehand.
A cet effet, l'invention a pour objet un Disjoncteur embarqué comprenant
- Un bouton poussoir (1), qui se déplace le long de son axe lorsque le disjoncteur se déclenche et qui permet de réarmer le disjoncteur par enfoncement,
- Une clef de centrage (2),
- Une borne d'alimentation (3) et une borne de distribution (4),
- Deux contacts disjoncteurs (5),
- Un bilame principal (6) dont la déformation par effet thermique déclenche le disjoncteur,
- Un circuit électronique (14),
- Un actionneur (15) apte à déclencher le disjoncteur,
Le circuit électronique (14) scrutant le signal électrique circulant entre la borne d'alimentation (3) et la borne de distribution (4), afin d'envoyer un ordre de déclenchement à l'actionneur (15) lorsque des situations particulières prédéfinies sont identifiées,
- A push button (1), which moves along its axis when the circuit breaker trips and which resets the circuit breaker by pressing,
- A centering key (2),
- A power supply terminal (3) and a distribution terminal (4),
- Two breaker contacts (5),
- A main bimetallic strip (6) whose deformation by thermal effect triggers the circuit breaker,
- An electronic circuit (14),
- An actuator (15) able to trigger the circuit breaker,
The electronic circuit (14) scanning the electrical signal flowing between the supply terminal (3) and the distribution terminal (4), in order to send a trip command to the actuator (15) when predefined particular situations are identified
Selon un mode de réalisation particulier, le téton (19) traverse la clef de centrage (2) lorsque le disjoncteur est en position déclenché suite à un ordre envoyé par le circuit électronique (14) à l'actionneur (15).According to a particular embodiment, the stud (19) passes through the centering key (2) when the circuit breaker is in the tripped position following an order sent by the circuit electronics (14) to the actuator (15).
Selon un mode de réalisation particulièrement avantageux, l'actionneur comporte un noyau mobile (17) munie d'une tige solidaire d'une rondelle (22) de plus grand diamètre que la tige, la tige et la rondelle (22) coopérant avec un évidemment (21) prévu dans la pièce d'autorisation de réarmement (18).According to a particularly advantageous embodiment, the actuator comprises a movable core (17) provided with a rod integral with a washer (22) of larger diameter that the rod, the rod and the washer (22) cooperating with a recess (21) provided in the reset authorization part (18).
Optionnellement, le disjoncteur embarqué comprend des contacts auxiliaires (12) indiquant trois états différents selon l'état du disjoncteur.Optionally, the on-board circuit breaker comprises auxiliary contacts (12) indicating three different states depending on the state of the circuit breaker.
Optionnellement, le disjoncteur comporte des moyens de communication aptes à transmettre des information au travers du bouton poussoir. Les moyens de communication peuvent comprendre une diode électroluminescente, éventuellement émettant dans l'infrarouge.Optionally, the circuit breaker comprises communication means suitable for transmit information through the push button. Communication means may comprise a light-emitting diode, possibly emitting infrared.
D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre d'un mode particulier de réalisation de l'invention, donné à titre d'exemple non limitatif, et représenté aux dessins annexés sur lesquels :
- la figure 1 représente un disjoncteur selon l'invention en position enclenché;
- la figure 2 représente un disjoncteur selon l'invention en position déclenché après déformation thermique d'un bilame principal ;
- la figure 3 représente un disjoncteur selon l'invention en positon déclenché après l'utilisation d'un actionneur;
- les figures 4a et 4b représentent un sous ensemble mécanique, dont les positions correspondent respectivement aux figures 1 et 3.
- Figure 1 shows a circuit breaker according to the invention in the engaged position;
- FIG. 2 represents a circuit breaker according to the invention in the tripped position after thermal deformation of a main bimetallic strip;
- FIG. 3 represents a circuit breaker according to the invention in a positron triggered after the use of an actuator;
- Figures 4a and 4b show a mechanical subassembly, the positions corresponding respectively to Figures 1 and 3.
La figure 1 représente un disjoncteur embarqué à clef de centrage selon l'invention en position enclenché. Lors de son installation, un disjoncteur de ce type est rendu solidaire d'un tableau par serrage d'un écrou venant plaquer le tableau sur une plaque conductrice métallique formant masse. Un bouton poussoir (1) d'actionnement traverse le tableau, et une clef de centrage (2) permet d'assurer le bon positionnement du dispositif. Dans l'exemple de mise en oeuvre de l'invention représenté à la figure 1, le disjoncteur embarqué comporte de façon classique une borne d'alimentation (3) et une borne de distribution (4) et deux contacts disjoncteurs (5). Lorsque le circuit est armé, les deux contacts disjoncteurs (5) établissent une liaison électrique de telle sorte qu'un courant électrique peut librement circuler entre les deux bornes (3, 4). De façon classique, un bilame principal (6) provoque l'ouverture du circuit en se déformant par échauffement. La déformation du bilame (6) est transmise par la barrette de liaison (7) et déplace la glissière (8) jusqu'à la libération du crochet (9). Lorsque le crochet (9) est libéré, les contacts disjoncteurs (5) sont séparés sous l'effet d'un mécanisme ressort (10), et le bouton (1) se déplace le long de son axe sous l'effet d'un ressort en s'écartant des bornes (3, 4). La figure 2 représente un disjoncteur selon l'invention en position déclenché par déformation thermique du bilame principal (6).FIG. 1 represents an on-board circuit breaker with a centering key according to the invention in the engaged position. During installation, a circuit breaker of this type is rendered secured to a board by tightening a nut coming to press the board on a plate metallic conductor forming mass. An actuating pushbutton (1) passes through the table, and a centering key (2) ensures the proper positioning of the device. In the exemplary embodiment of the invention shown in FIG. 1, the circuit breaker embedded comprises conventionally a power supply terminal (3) and a terminal distribution (4) and two breaker contacts (5). When the circuit is armed, both circuit breaker contacts (5) establish an electrical connection so that a current electric can freely flow between the two terminals (3, 4). In a classic way, a bimetal main (6) causes the opening of the circuit by deforming by heating. The deformation of the bimetal (6) is transmitted by the connecting bar (7) and moves the slide (8) until the hook (9) is released. When the hook (9) is released, the contacts circuit-breakers (5) are separated under the effect of a spring mechanism (10), and the button (1) is moves along its axis under the effect of a spring away from the terminals (3, 4). The figure 2 represents a circuit breaker according to the invention in position triggered by deformation thermal of the main bimetallic strip (6).
Le dispositif représenté à la figure 1 comprend également un bilame de compensation (11) dont la fonction est de compenser les variation de température du milieu, c'est à dire les variations de température qui ne sont pas liées au courant électrique et qui ne doivent donc pas être prises en compte pour déclencher. Ce système est connu en soi et est optionnel. En effet, l'invention fonctionnant aussi bien pour les dispositifs de coupure dépourvus de bilames de compensation que pour les dispositifs de coupure qui en sont munis comme celui représenté sur la figure 1. Ainsi la présence d'un bilame de compensation n'est ni essentielle pour sa mise en oeuvre de l'invention, ni rendue impossible par celle-ci.The device represented in FIG. 1 also comprises a bimetallic strip compensation (11) whose function is to compensate for the temperature variation of the medium, ie temperature variations that are not related to the electrical current and therefore should not be taken into account to trigger. This system is known in self and is optional. Indeed, the invention functions both for the devices of cut-off without bimetallic compensating stripes for switching devices which are equipped like the one shown in FIG. 1. Thus the presence of a bimetallic strip compensation is neither essential for its implementation of the invention, nor rendered impossible by this one.
De façon classique, le fait de renfoncer le bouton (1) vers sa position initiale va rétablir la liaison électrique entre les deux contacts de disjonction (5) et remettre le crochet (9) dans la glissière (8). Si le bilame principal (6) n'est plus déformé, le crochet (9) sera maintenu en place par la glissière (8) et le dispositif sera réarmé.Conventionally, the fact of pressing the button (1) back to its initial position will restore the electrical connection between the two disjunction contacts (5) and replace the hook (9) in the slide (8). If the main bimetallic strip (6) is no longer deformed, the hook (9) will be held in place by the slide (8) and the device will be rearmed.
Le fonctionnement décrit jusqu'à présent est identique en tout point à celui d'un disjoncteur embarqué selon l'art antérieur. De même, le dispositif représenté est muni d'un système, connu en soi mais optionnel, de contacts auxiliaires (12). Lorsque le disjoncteur est armé, les contacts auxiliaires (12) sont ouverts, et lorsque le disjoncteur déclenche l'ouverture des contacts de disjonctions, le levier (13) pivote et vient fermer les contacts auxiliaires (12). Ce système optionnel de contacts auxiliaires à deux états permet de vérifier aisément l'état du disjoncteur, et est parfaitement compatible avec l'invention.The operation described so far is identical in every respect to that of a embedded circuit breaker according to the prior art. Similarly, the device shown is provided with a system, known per se but optional, of auxiliary contacts (12). When the circuit breaker is armed, the auxiliary contacts (12) are open, and when the circuit breaker trips opening the disjunction contacts, the lever (13) pivots and closes the contacts auxiliaries (12). This optional system of auxiliary contacts with two states makes it possible to easily check the state of the circuit breaker, and is perfectly compatible with the invention.
Le disjoncteur est muni d'un circuit électronique (14) qui est relié électriquement à la plaque métallique formant masse, et qui mesure les caractéristiques du courant circulant dans le dispositif, par exemple au niveau du bilame principal (6). De façon classique le circuit électronique (14) est apte à détecter des situations particulières nécessitant le déclenchement du disjoncteur qui comporte à cet effet un actionneur (15) qui libère le crochet (9) sur ordre du circuit électronique (14). Dans l'exemple de mise en oeuvre de l'invention représenté sur les figures, l'actionneur comprend un électroaimant (16) permettant de déplacer un noyau (17). Le noyau est muni d'une tige d'actionnement qui vient s'appuyer sur une équerre (18) solidaire de la barrette de liaison (7) de telle sorte que tout déplacement du noyau (17) provoque le déplacement de la barrette de liaison (7) jusqu'à la libération du crochet (9).The circuit breaker is provided with an electronic circuit (14) which is electrically connected to the metal plate forming a mass, which measures the characteristics of the circulating current in the device, for example at the level of the main bimetallic strip (6). In a classic way electronic circuit (14) is able to detect particular situations requiring the tripping circuit breaker which comprises for this purpose an actuator (15) which releases the hook (9) on order of the electronic circuit (14). In the example of implementation of the invention shown in the figures, the actuator comprises an electromagnet (16) for moving a core (17). The core is provided with an actuating rod which is supported on a bracket (18) integral with the connecting bar (7) so that any displacement of the core (17) causes the displacement of the connecting bar (7) until the hook (9) is released.
Le circuit électronique (14), en scrutant les caractéristiques du signal électrique, est apte à détecter des phénomènes instantanés qui n'accumulent pas d'énergie moyenne suffisante pour que le bilame principal (6) déclenche le disjoncteur. Il peut s'agir par exemple de faux contacts, ou d'arc électriques. Certains de ces phénomènes présentent des risques d'incendie. C'est la raison pour laquelle il est préférable d'indiquer clairement quelle a été la cause du déclenchement et d'empêcher tout réarmement involontaire.The electronic circuit (14), by scanning the characteristics of the electrical signal, is able to detect instantaneous phenomena that do not accumulate average energy sufficient for the main bimetallic strip (6) to trip the circuit breaker. It can be by example of false contacts, or electric arcs. Some of these phenomena have fire hazards. This is why it is better to indicate clearly what was the cause of the trip and to prevent any unintentional rearmament.
A cet effet, le disjoncteur selon l'invention comporte une pièce d'autorisation de réarmement (18) munie d'un téton (19). Lorsque l'actionneur (15) est activé sur ordre du circuit électronique (14), la pièce d'autorisation de réarmement (18) se déplace sous l'effet d'un ressort de compression (20) et empêche le noyau (17) de revenir à sa position initiale. Le téton (19) sort au travers de la clef de centrage (2) comme représenté sur la figure 3. Les figure 4a et 4b représentent un exemple de réalisation du dispositif d'autorisation de réarmement selon l'invention respectivement en position enclenchée et déclenchée sur ordre du circuit électronique (14). Dans cet exemple de réalisation, la tige d'actionnement du noyau (17) est solidaire d'une rondelle (22) dont le diamètre est plus important que celui de la tige d'actionnement du noyau (17). La pièce d'autorisation de réarmement comporte un évidement (21) dont une partie permet de laisser passer la rondelle (22) afin que le noyau (17) soit en position enclenché, et une autre partie ne permet de laisser passer que la tige d'actionnement du noyau (17) mais pas la rondelle (22) de façon à maintenir le disjoncteur en position déclenchée. En cas de déclenchement sur ordre du circuit électronique (14), il est nécessaire de renfoncer non seulement le bouton poussoir (1) mais également la pièce d'autorisation de réarmement (18) en appuyant sur le téton (19). Ainsi, il est matériellement impossible de réarmer le dispositif sans être informé du type de déclenchement.For this purpose, the circuit breaker according to the invention comprises a piece of authorization of resetting (18) provided with a pin (19). When the actuator (15) is activated on the order of electronic circuit (14), the reset authorization piece (18) moves under the effect a compression spring (20) and prevents the core (17) from returning to its initial position. The pin (19) exits through the centering key (2) as shown in FIG. FIGS. 4a and 4b show an exemplary embodiment of the authorization device of reset according to the invention respectively in the engaged position and triggered on electronic circuit order (14). In this embodiment, the actuating rod the core (17) is integral with a washer (22) whose diameter is larger than that the actuating rod of the core (17). The reset authorization part comprises a recess (21), part of which allows the washer (22) to pass so that the core (17) is in the engaged position, and another part allows only the actuating rod of the core (17) but not the washer (22) so as to maintain the circuit breaker in the tripped position. In case of tripping on circuit order electronics (14), it is necessary to not only press the push button (1) but also the reset authorization piece (18) by pressing on the pin (19). So, it is physically impossible to rearm the device without being informed of the type of trigger.
De plus comme le téton (19) de la pièce d'autorisation de réarmement de réarmement (18) traverse la clef de centrage (2) et que celle-ci est déjà présente sur les dispositifs selon l'art antérieur, le dispositif selon l'invention est parfaitement compatible et peut remplacer un dispositif selon l'art antérieur sans avoir à modifier le tableau.In addition, as the pin (19) of the rearming authorization part of resetting (18) passes through the centering key (2) and that it is already present on the devices according to the prior art, the device according to the invention is perfectly compatible and can replace a device according to the prior art without having to modify the table.
La pièce d'autorisation de réarmement (18) est un élément de sécurité supplémentaire, qui n'ajoute pas de risque de défaillance du disjoncteur. En effet, même si la pièce d'autorisation de réarmement (18) est bloquée, le déclenchement reste possible aussi bien par déformation du bilame principal (6) que sur ordre du circuit électronique (14).The reset authorization part (18) is a security element additional, which does not add any risk of breaker failure. Indeed, even if the reset authorization piece (18) is blocked, the triggering remains possible both by deformation of the main bimetallic strip (6) and by order of the electronic circuit (14).
Selon un mode de mise en oeuvre de l'invention particulièrement avantageux, la pièce d'autorisation de réarmement (18) permet de tester la chaíne électronique de déclenchement. En effet, le circuit électronique (14) scrute en permanence les caractéristiques du courant. Ainsi, si un opérateur tire sur le bouton (1) et déclenche manuellement le disjoncteur, le circuit électronique (14) sait que le courant était insuffisant pour déformer le bilame (6). Le circuit électronique (14) ordonne alors à l'actionneur (15) de se déclencher, ce qui provoque le déplacement du noyau (17) et la sortie du téton (19) de la pièce d'autorisation de réarmement (18) à travers la clef de centrage (2). La sortie du téton (19) valide le bon fonctionnement de la chaíne de déclenchement électronique.According to a particularly advantageous embodiment of the invention, the reset authorization part (18) is used to test the electronic chain of trigger. Indeed, the electronic circuit (14) continuously scans the current characteristics. Thus, if an operator pulls the button (1) and triggers manually the circuit breaker, the electronic circuit (14) knows that the current was insufficient to deform bimetal (6). The electronic circuit (14) then commands the actuator (15) to trigger, which causes the displacement of the core (17) and the exit of the nipple (19) from the reset authorization piece (18) through the centering key (2). The exit of pin (19) validates the correct operation of the electronic trigger chain.
Dans le cas où le disjoncteur est muni du système optionnel de contacts auxiliaires (12), comme représenté sur les figures, la pièce d'autorisation de réarmement (18) est munie d'un ergot (23) qui vient fermer un contact. Lors d'un déclenchement du disjoncteur sur ordre du circuit électronique (14), la pièce d'autorisation de réarmement (18) se déplace sous l'effet du ressort (20) et le contact s'ouvre, ce qui a pour effet de modifier l'impédance apparente aux bornes des contacts auxiliaires (12) et d'établir ainsi un troisième état. De cette manière il est possible de vérifier l'état du disjoncteur et, s'il est en état déclenché, de savoir quel a été le mode de déclenchement.In case the circuit-breaker is equipped with the optional auxiliary contact system (12), as shown in the figures, the reset authorization piece (18) is provided with a lug (23) which closes a contact. When tripping the circuit breaker on the order of the electronic circuit (14), the reset authorization piece (18) moves under the effect of the spring (20) and the contact opens, which has the effect of modifying apparent impedance across the auxiliary contacts (12) and thereby to establish a third state. In this way it is possible to check the state of the circuit breaker and, if it is triggered state, to know what was the trigger mode.
Selon un mode particulièrement avantageux de mise en oeuvre de l'invention, le disjoncteur selon l'invention est également apte à dialoguer. Dans ce mode de mise en oeuvre, le bouton (1) est transparent, et le disjoncteur comporte une diode électroluminescente commandée afin de transmettre informations. Ces informations peuvent par exemple concerner l'état du système électrique, l'état du dispositif, un descriptif du contexte lors d'un déclenchement ou toute autre donnée connue par le circuit électronique (14).According to a particularly advantageous embodiment of the invention, the circuit breaker according to the invention is also able to dialogue. In this mode of setting the button (1) is transparent, and the circuit breaker comprises a diode electroluminescent ordered in order to transmit information. These informations can for example relate to the state of the electrical system, the state of the device, a description of the context during a trip or any other data known by the circuit electronic (14).
Selon le contexte d'utilisation du disjoncteur, la diode électroluminescente peut émettre dans le spectre visible ou dans le spectre invisible, par exemple dans l'infra rouge. La seconde solution permet de ne pas perturber le personnel, par exemple le personnel naviguant d'un avion. La première solution est compatible avec un système de clignotement fugitif de veille indiquant que le dispositif de coupure est alimenté et en service, la diode n'étant éteinte que lorsque le dispositif de coupure n'est plus alimenté ou lorsque le circuit électronique ou la diode elle même sont défaillants.Depending on the context of use of the circuit breaker, the light-emitting diode may transmit in the visible spectrum or in the invisible spectrum, for example in the infrared. The second solution does not disrupt staff, for example staff flying from an airplane. The first solution is compatible with a system of fugitive standby flashing indicating that the cutoff device is powered and in service, the diode being off only when the cut-off device is no longer powered or when the electronic circuit or the diode itself are faulty.
En utilisant un bouton (1) transparent au travers duquel le signal est transmis, on rend la lecture du signal particulièrement aisée. Le bouton peut en effet très facilement être relié à un système de lecture portatif, par exemple au moyen d'un capuchon, en évitant ainsi toute erreur de transmission.By using a transparent button (1) through which the signal is transmitted, one makes the reading of the signal particularly easy. The button can indeed very easily be connected to a portable reading system, for example by means of a hood, avoiding thus any transmission error.
Il est également possible de mettre en place une transmission bidirectionnelle, utilisant par exemple une transmission dans l'infra rouge dans un sens et une transmission dans le spectre visible dans l'autre sens.It is also possible to set up a bidirectional transmission, using for example a transmission in the infrared in one direction and a transmission in the visible spectrum in the other direction.
Claims (7)
caractérisé en ce qu'il comprend également une pièce mobile d'autorisation de réarmement (18) munie d'un téton (19) et en ce que, lorsque le disjoncteur déclenche suite à un ordre envoyé par le circuit électronique (14) à l'actionneur (15), la pièce d'autorisation de réarmement (18) se déplace de telle sorte que le réarmement du disjoncteur ne soit possible qu'en enfonçant la pièce d'autorisation avant l'enfoncement du bouton poussoir (1) ou simultanément avec celui-ci.Embedded circuit breaker including
characterized in that it also comprises a movable reset authorization piece (18) provided with a pin (19) and in that , when the circuit-breaker trips following an order sent by the electronic circuit (14) to the actuator (15), the reset enable part (18) moves in such a way that resetting of the circuit-breaker is only possible by depressing the authorization part before pressing the pushbutton (1) or simultaneously with this one.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0314903A FR2864335B1 (en) | 2003-12-18 | 2003-12-18 | ONBOARD CIRCUIT BREAKER WITH REARMING AUTHORIZATION MECHANISM |
| FR0314903 | 2003-12-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1544884A1 true EP1544884A1 (en) | 2005-06-22 |
| EP1544884B1 EP1544884B1 (en) | 2012-05-30 |
Family
ID=34508695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04354036A Not-in-force EP1544884B1 (en) | 2003-12-18 | 2004-10-07 | On board circuit breaker with reset authorization mechanism |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7113062B2 (en) |
| EP (1) | EP1544884B1 (en) |
| ES (1) | ES2384793T3 (en) |
| FR (1) | FR2864335B1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080074249A1 (en) * | 2006-09-25 | 2008-03-27 | Chia-Yi Wang & Shu-Mei Kuo & Tsai-Yu Lee | Wireless tire pressure detection device |
| US20090310324A1 (en) * | 2008-06-16 | 2009-12-17 | Mills Patrick W | Method of electrically grounding an electrical switching apparatus and electrical switching apparatus including the same |
| AU2009266231A1 (en) * | 2008-07-04 | 2010-01-07 | Hubei Shengjia Wiring Co., Ltd. | Breaker with short circuit self-locking function |
| US8563882B2 (en) * | 2010-10-12 | 2013-10-22 | Siemens Industry, Inc. | Electronic circuit breaker having a locking and unlocking mechanism and methods of operating same |
| US8476992B2 (en) | 2011-10-07 | 2013-07-02 | Siemens Industry, Inc. | Circuit breaker having an unlocking mechanism and methods of operating same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001097243A1 (en) * | 2000-06-13 | 2001-12-20 | Eaton Corporation | Ground fault current interrupter/arc fault current interrupter circuit breaker with fail safe mechanism |
| EP1255269A1 (en) * | 2001-04-30 | 2002-11-06 | Eaton Corporation | Circuit breaker including an arc fault trip actuator having an indicator latch and a trip latch |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH577748A5 (en) * | 1973-07-31 | 1976-07-15 | Ellenberger & Poensgen | |
| US4837545A (en) * | 1987-04-02 | 1989-06-06 | Texas Instruments Incorporated | Miniature circuit breaker with improved longevity |
| JPH09320381A (en) * | 1996-05-29 | 1997-12-12 | Niles Parts Co Ltd | Knob lighting device for switch |
| US6642832B2 (en) * | 2000-12-08 | 2003-11-04 | Texas Instruments Incorporated | ARC responsive thermal circuit breaker |
| US6867670B2 (en) * | 2002-11-05 | 2005-03-15 | Eaton Corporation | Circuit breaker with auxiliary switches and mechanisms for operating same |
| US6949997B2 (en) * | 2003-09-26 | 2005-09-27 | Rockwell Automation Technologies, Inc. | Bi-stable trip-free relay configuration |
-
2003
- 2003-12-18 FR FR0314903A patent/FR2864335B1/en not_active Expired - Fee Related
-
2004
- 2004-10-07 EP EP04354036A patent/EP1544884B1/en not_active Not-in-force
- 2004-10-07 ES ES04354036T patent/ES2384793T3/en active Active
- 2004-12-08 US US11/006,656 patent/US7113062B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001097243A1 (en) * | 2000-06-13 | 2001-12-20 | Eaton Corporation | Ground fault current interrupter/arc fault current interrupter circuit breaker with fail safe mechanism |
| EP1255269A1 (en) * | 2001-04-30 | 2002-11-06 | Eaton Corporation | Circuit breaker including an arc fault trip actuator having an indicator latch and a trip latch |
Also Published As
| Publication number | Publication date |
|---|---|
| US20050134411A1 (en) | 2005-06-23 |
| ES2384793T3 (en) | 2012-07-12 |
| FR2864335B1 (en) | 2006-02-03 |
| EP1544884B1 (en) | 2012-05-30 |
| FR2864335A1 (en) | 2005-06-24 |
| US7113062B2 (en) | 2006-09-26 |
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