MOVING CONTACT OF CIRCUIT BREAKER

Description

Field of the Invention

[0001] The present invention relates to a moving contact member of circuit breaker, which is arranged in a moving contact cavity in the base of the circuit breaker, and cooperates with a fixed contact member to close/open the circuit. It belongs to the technical field of low-voltage apparatuses.

Background of the Invention

[0002] It is well-known to the person skilled in the art that in actual application, the self-resistance of circuit breaker conductor and the contact resistance between moving contact member and fixed contact member play an important role in the performance of short-time tolerance for short-circuit current of the circuit breaker. For example, the higher the self-resistance of the conductor or the higher the contact resistance between moving contact member and fixed contact member, the higher the heat generated on the circuit breaker under short-circuit current, and the contacts on moving contact member and fixed contact member (movable contact on the moving contact member and fixed contacts on the fixed contact member) may be fusion welded and even damaged. In terms of the moving contact member of the circuit breaker, since there is fit clearance between the parallel contact plates (usually referred to parallel conductors) and the revolving support shaft, which can't be completely eliminated not matter how exquisite the workmanship is, the parallel conductors often tend to deflect to a side at the end of closing process of the circuit breaker, as causes bad contact between the movable contacts on moving contact member and the fixed contacts, and increases the contact resistance.

[0003] The structure of moving contact member in a circuit breaker in the prior art is shown in Fig. 4. It comprises an insulating support 1, a pair of fixing plates 2, a grid plate base 3, a set of grid plates 4, a revolving support shaft 5, a set of parallel conductors 6 composed of at least three conductors, a flexible conductive connecting wire 7, and a conductive block 8, wherein, the upper ends of a pair of fixing plates 2 are fixed to two sides of the insulating support 1, and the lower ends of a pair of fixing plates 2 are jointed to the conductive block 8; the grid plate base 3 covers the set of parallel conductors 6, with two ends being fixed to a pair of fixing plates 2; a set of grid plates 4 are distributed on the insulating support 1; the middle part of the set of parallel conductors 6 is pivot-mounted on the middle part of the revolving support shaft 5 two ends of which is fixed to the pair of fixing plates 2, and the set of parallel conductors 6 is jointed to one end of the flexible conductive connecting wire 7; the other end of the flexible conductive connecting wire 7 is fixed to the conductive block 8. Apparently, the set of grid plates 4 is designed to separate and retain the set of parallel conductors 6. However, in view of the volume of the entire moving contacts and the space utilization of parallel conductors 6 to increase the cross-sectional area of current flow and reduce temperature rise of the circuit breaker, it is impossible and not permitted to increase the thickness of each grid plate in the set of grid plates 4 without limitation, so the thickness often have to be restricted. In view of the situation, the thickness of the grid plate is usually designed as thin as a paper. which have some contributions for reducing volume of the entire moving contacts and increase space utilization of the parallel conductors 6 as well as the cross-sectional area of current flow. However this can't relieve the side-deflection phenomenon of the parallel conductors 6 when the circuit breaker is closed, because the clearance between the parallel conductors 6 and the revolving support shaft 5 can't be eliminated, as described above by the applicant; and the misalignment between the movable contacts 9 on the parallel conductors 6 and the fixed contacts on the fixed contact member increases the contact resistance. To solve the problem, the current practice is just to increase the strength of grid plates 4 at the expense of miniaturization of the volume of moving contact, namely to increase the thickness of each grid plate in the set of grid plates 4.

[0004] Even though efforts have been made in the industry to find a balance point which can ensure the contact effect between moving contact member and fixed contact member and not excessively affect the space utilization of parallel conductors, there is neither literal report on success nor actual product up to now.

[0005] Well known structures of moving contact members in a circuit breaker are described, for example, in DE 201 18 493 U1, according to the preamble of claim 1, and in DE 295 03 327 U1.

Summary of the Invention

[0006] The task of the present invention is to provide a moving contact member of circuit breaker, which can not only effectively prevent side-deflection of the parallel conductors to reduce contact resistance, but also ensure small volume and simple structure to increase short-time tolerance for short-circuit current.

[0007] The task of the present invention is accomplished as fallows: a moving contact member of circuit breaker, comprising an insulating support, a pair of fixing plates, a grid plate base, a set of grid plates, a revolving support shaft, a set of parallel conductors, a flexible conductive connecting wire, and a conductive block, wherein, the upper ends of the pair of fixing plates are fixed to the two sides of the insulating support, and the lower ends of the pair of fixing plates are jointed to the conductive block; the grid plate base covers the set of parallel conductors, with two ends being fixed to the pair of fixing plates; the middle part of the set of parallel conductors is pivot-jointed to the middle part of the revolving support shaft the ends of which are fixed to the pair of fixing plates, and the set of parallel conductors are jointed to one end of the flexible conductive connecting wire; the other end of the flexible conductive connecting wire is fixed to the conductive block; it is characterized in that: the moving contact member also comprises a fixing support, which is mounted on the insulating support or the grid plate base and accompanied to a set of parallel conductors; at least one conductor in the set of parallel conductors is in the fixing support and at a position consistent with the other conductors; the set of grid plates are arranged on either the grid plate base or the insulating support.

[0008] Further, the fixing support has a parallel conductor receiving cavity designed to receive at least one parallel conductor in the set of parallel conductors; in addition, a pair of side walls of the parallel conductor receiving cavity are perpendicular to the revolving support shaft, and the bottom wall of the parallel conductor receiving cavity is fixed to the insulating support or grid plate base.

[0009] In an embodiment of the present invention, shaft holes which are corresponding to each other and arranged on the pair of side walls are designed to leave a way for the revolving support shaft and provide a path for the revolving support shaft, and the bottom wall is fixed to the insulating support; in addition, a first pin is arranged on the edge of the pair of side walls at the side where the pair of side walls face the grid plate base, and the first pin is inserted into the first pin receiving slot on the grid plate base.

[0010] In another embodiment of the present invention, slots which are corresponding to each other and arranged on the pair of side walls are designed to leave a way for the revolving support shaft and provide a path for the revolving support shaft, and the bottom wall is fixed to the grid plate base; in addition, a second pins is arranged on the pair of side walls in a reduced manner at the side where the pair of side walls face the insulating support, and the second pin is inserted into second pin receiving slot on the insulating support.

[0011] In another embodiment of the present invention, the said bottom wall is fixed to the middle part of the insulating support.

[0012] In another embodiment of the present invention, the said bottom wall is fixed to the middle part of the grid plate base.

[0013] In another embodiment of the present invention, a support clip is arranged on each upper side of the pair of side walls respectively.

[0014] In another embodiment of the present invention, the set of grid plates are arranged on the grid plate base, and they are embedded in the gaps between the conductors in the set of parallel conductors.

[0015] In another embodiment of the present invention, the set of grid plates are arranged on the insulating support, and they are embedded in the gaps between the conductors in the set of parallel conductors.

[0016] In another embodiment of the present invention, a reinforcing support is coupled to the grid plate base.

[0017] Compared to the prior art, the present invention has the following advantages: since a fixing support is added, excessive deflection of the parallel conductors can be effectively prevented when the circuit breaker is closed, so that the movable contacts of the moving contact member on the set of parallel conductors can contact well with the fixed contacts of the fixed contact member of the circuit breaker, and lower contact resistance can be achieved; therefore, the temperature rise on the movable contact member and fixed contact member can be reduced in case of short circuit, and thereby the performance of short-time current tolerance of the circuit breaker can be improved; the arrangement of the fixing support changes the design thought of relieving side-deflection merely by increasing the thickness of each conductor in the set of parallel conductors in the prior art, and therefore the moving contact member can be kept small, and the overall size of the circuit breaker can be controlled effectively; the fixing support is simple in structure and easy to install, which is favorable for economical efficiency and industrial applicability.

Brief Description of the Drawings

[0018] 

Fig. 1

is a structural diagram of a first embodiment of the moving contact member of circuit breaker in the present invention.

Fig. 2

is a structural diagram of a second embodiment of the moving contact member of circuit breaker in the present invention.

Fig. 3

is a schematic diagram of embodiment that the moving contact member of circuit breaker in the present invention is mounted on a circuit breaker.

Fig. 4

is a schematic diagram of the moving contact member of circuit breaker in the prior art.

Detailed Description of the Embodiments

[0019] To make the examiner and especially the public further understand the substance and beneficial effects of the present invention, hereafter the present invention will be described in embodiments,. However, these embodiments shall not be deemed as limitation to the technical scheme of the present invention.

Embodiment 1:

[0020] Please see Fig.1 for details. An insulating support 1, preferably made of plastic material, is shown. One side of the insulating support 1 facing a set of parallel conductors 6 is processed into an insulating bevel 13; corresponding spring holes 15 (also referred to spring seat) in the same quantity as the conductors in the set of parallel conductors 6 are arranged on the upper area of the insulating bevel 13; the spring holes 15 hold one end of springs 14 respectively, and the other end of the springs 14 prop against the spring containing cavities 36 on the parallel conductors 6. On the middle part of the insulating support 1, more specifically, in middle of the upper part of the insulating bevel 13, a cavity 16 is arranged to receive a fixing support 10 (to be detailed below), with a screw hole 17 at the center of the cavity 16. The pair of fixing plates 2 are preferably in the same shape, and are preferably made of a metal material; the upper end of each of the fixing plates 2 is fixed to the insulating support 1 with screws (the quantity of the screws is not limited to the quantity shown in the drawing), and the lower end of each of the fixing plates 2 is jointed to the mounting seat 21 of a conductive block 8 via a transition shaft 37.

[0021] In this embodiment, a set of grid plates 4 (also referred to comb plates) are arranged on a grid plate base 3 at the side where the grid plate base 3 faces the parallel conductors 6, that is, the set of grid plates 4 are formed on the grid plate base 3 during the molding process of the grid plate base 3; the grid plate cavities 25 between each of the grid plates 4 are designed to compensate (or contain) the parallel conductors 6; when the grid plate base 3 covers the set of parallel conductors 6 and is fixed to the fixing plate 2 at two ends with screws 22, the set of grid plates 4 and the set of parallel conductors 6 form compensation relationship between them. The socalled compensation relationship refers to: each grid plate 4 is embedded into the gap 29 between adjacent parallel conductors 6, while each parallel conductor 6 is embedded into the corresponding grid plate cavity 25. A reinforcing support 23 can be coupled to the grid plate base 3 by insertion or screw fastening, or by other similar positioning method; in addition, a pair of first pin receiving slots 24 are arranged on the reinforcing support 23; of course, the first pin receiving slots 24 function as plug.

[0022] As well-known by those skilled in the art, the quantity of the conductors in the set of parallel conductors 6 may be varied from 3 to a dozen or more, depending on different operating requirement. Therefore, the quantity shown in the drawings shall not be deemed as limitation to the technical scheme of the present invention. A movable contact 9 (usually also referred to silver contact) corresponding to the fixed contact oo the fixed contact member of the circuit breaker is arranged on each of the conductors in the set of parallel conductors 6, the middle part of each conductor is pivot jointed through a shaft hole 38 to the middle part of a revolving support shaft 5, and the lower end of each conductor is electrically jointed to one end of a flexible conductive connecting wire 7; the other end of the flexible conductive connecting wire 7 is fixed to a conductive block 8; the two ends of the revolving support shaft 5 are inserted into preformed shaft holes19 on the fixing plate 2. In a preferred but not limited scheme, a screw hole 27 can be arranged on the end face at both ends or at least one end of the revolving support shaft 5, and a screw can be screwed into the screw hole 27 to prevent play of the revolving support shaft 5 in horizontal direction on the fixing plate 2.

[0023] Please continue to see Fig.1. A fixing support 10 is implanted among the set of parallel conductors 6, separates the set of parallel conductors 6 into 3 areas, and supports the parallel conductors 6 in lateral direction. In order to keep a pair of side walls 31 of the fixing support 10 that are perpendicular to the revolving support shaft 5 accompany the parallel conductors 6 and from hindering or blocking the arrangement of the revolving support shaft 5 on the pair of fixing plates 2, therefore, shaft holes 28 corresponding to each other in position is arranged on the pair of side walls 31 to provide a pass or leave a way for the revolving support shaft 5. A screw hole 12 is arranged on the bottom wall 32 of the parallel conductor receiving cavity 30, and a screw 26 is passed through the screw fixing hole 12 and then screwed into the screw hole 17 described above, so as to fix the fixing support 10 to the insulating support 1 and ensure the pair of side walls 31 described above are perpendicular to the revolving support shaft 5 adequately. To facilitate the public to understand the present invention, the applicant has arranged a plurality of conductors 18 at the middle of the set of parallel conductors 6 in the above parallel conductor receiving cavity 30; in addition, the conductors 18 are at the consistent positions with the other conductors. A support clip 11 extends on the upper side of the pair of side walls 31 of the parallel conductor receiving cavity 30 to further enhance the effect of the fixing support 10 for preventing side deflection of the tips of parallel conductors 6 situated at the two ends of the fixing support 10. In addition, first pins 20 (with shape and construction not limited to those shown in the drawings) are arranged on the edges of the pair of side walls at the end where the pair of side walls 31 face the grid plate base 3; the first pins 20 are inserted into first pin receiving slots 24 formed on the reinforcing support 23 and the structure can further enhance stability of the fixing support 10.

Embodiment 2:

[0024] Please see Fig.2 for details. In another embodiment of the present invention, a set of grid plates 4 are arranged on the insulating bevel 13 of an insulating support 1. Slots 33 corresponding to each other in position are arranged on a pair of side walls 31 of the parallel conductor receiving cavity 30 of the fixing support 10; the slots 33 have a function similar to shaft holes 28; Similarly, in order to keep a pair of side walls 31 of the fixing support 10 accompany the parallel conductors 6 and from hindering the arrangement of the revolving support shaft 5 on the pair of fixing plates 2; thus, the slots 33 cross the revolving support shaft 5. Second pins 34 is arranged on a pair of side walls 31 in a reduced manner in the direction in which the pair of side walls 31 face the insulating support 1; to compensate the second pins 34, a pair of second pin receiving slots 35 are arranged on the insulating bevel 13 of the insulating support 1. The bottom wall of the parallel conductor receiving cavity 30 is fixed to the grid plate base 3 with screws or in a similar way, so as to ensure the pair of side walls 31 of the fixing support 10 perpendicular to the revolving support shaft 5. The rest description is identical to the description of embodiment 1.

[0025] It can be easily understood from the two embodiments described above that the fixing support 10 can be fixed in two ways, i.e., the fixing support 10 can be fixed to the insulating support 1 or fixed to the grid plate base 3. The set of grid plates 4 can be formed on the grid plate base 3 or the insulating support 1. In addition, if the number of the parallel conductors 6 is as small as 3, the parallel conductor receiving cavity 30 of the fixing support 10 can be correspondingly narrowed down, and the middle conductor among the three conductors can be arranged in the parallel conductor receiving cavity 30; if the number of parallel conductors 6 is as much as 10, three or four intermediate conductors (not limited to the absolute quantity) among the parallel conductors 6 can be arranged in the parallel conductor receiving cavity 30 as required, and so on.

Application example:

[0026] Please see Fig. 3 for details. A base 39 of circuit breaker is shown. The moving contact member in the structure shown in embodiment 1 and 2 in the present invention is arranged in a moving contact cavity 40 on the base 39, and it is mounted in the same way as the prior art.

[0027] At the end of closing of the circuit breaker, the tendency of side deflection of parallel conductors 6 can be suppressed by the fixing support 10, because the pair of side walls 31 of the fixing support 10 and the support clips 11 arranged on the side walls 31 accompany a set of parallel conductors 6 and separate the set of parallel conductors 6 into three areas. They can provide firm and reliable fixing and retaining effect for the parallel conductors 6 in lateral direction, reduce the influence of accumulative side play, and ensure good contact between the movable contacts 9 and the fixed contacts of the fixed contact member of the circuit breaker, and finally achieve low contact resistance.

Claims

1. A moving contact member of circuit breaker, comprising an insulating support (1), a pair of fixing plates (2), a grid plate base (3), a set of grid plates (4), a revolving support shaft (5), a set of parallel conductors (6), and a flexible conductive connecting wire (6), wherein, the upper ends of the pair of fixing plates (2) are fixed to the two sides of the insulating support (1); the grid plate base (3) covers the set of parallel conductors (6), with two ends being fixed to the pair of fixing plates (2); the middle part of the set of parallel conductors (6) is pivot-mounted on the middle part of the revolving support shaft (5) the two ends of which are fixed to the pair of fixing plates (2), and the parallel conductors (6) are jointed to one end of the flexible conductive connecting wire (7); wherein the moving contact member further comprises a fixing support (10), which is mounted on the insulating support (1) or grid plate base (3), accompanying the set of parallel conductors (6); at least one conductor in the set of parallel conductors (6) is in the fixing support (10) and at a position consistent with the other conductors; the set of grid plates (4) are arranged on either the grid plate base (3) or the insulating support (1),
characterized in that
the moving contact member further comprises a conductive block (8), wherein the lower ends of the pair of fixing plates (2) are jointed to the conductive block (8); the other end of the flexible conductive connecting wire (7) is fixed to the conductive block (8); and
wherein, the fixing support (10) has a parallel conductor receiving cavity (3) designed to receive at least one of the conductors in the set of parallel conductors (6); a pair of side walls (31) of the parallel conductor receiving cavity (30) are perpendicular to the revolving support shaft (5), and the bottom wall (32) of the parallel conductor receiving cavity (30) is fixed to the insulating support (1) or the grid plate base (3).

2. The moving contact member of circuit breaker according to claim 1, wherein, shaft holes (28) corresponding to each other in position are arranged on the pair of side walls (31) and are designed to leave a way and provide a path for the revolving support shaft (5); and the bottom wall (32) is fixed to the insulating support (1); in addition, first pins (20) are arranged on the edges of the pair of side walls (32) at the side where the pair of side walls (31) face the grid plate base (3), and the first pins (20) are inserted into first pin receiving slots (24) on the grid plate base (3).

3. The moving contact member of circuit breaker according to claim 1, wherein, slots (33) corresponding to each other in position and designed to leave a way and provide a path for the revolving support shaft (5) are arranged on the pair of side walls (31), and the bottom wall (32) is fixed to the grid plate base (3); in addition, second pins (34) are arranged on the pair of side walls (31) in a reduced manner in the direction in which the pair of side walls (31) face the insulating support (1), and the second pins (34) are inserted into second pin receiving slots (35) on the insulating support (1).

4. The moving contact member of circuit breaker according to claim 2, wherein, the bottom wall (32) is fixed to the middle part of the insulating support (1).

5. The moving contact member of circuit breaker according to claim 3, wherein, the bottom wall (32) is fixed to the middle part of grid plate base (3).

6. The moving contact member of circuit breaker according to claim 2 or 3, wherein, a support clip (11) is arranged on the upper part of each side wall in the pair of side walls (31).

7. The moving contact member of circuit breaker according to claim 1, wherein, the set of grid plates (4) are arranged on the grid plate base (3), and are embedded in the gaps (29) between the conductors in the set of parallel conductors (6).

8. The moving contact member of circuit breaker according to claim 1, wherein, the set of grid plates (4) are arranged on the insulating support (1), and are embedded in the gaps (29) between the conductors in the set of parallel conductors (6).

9. The moving contact member of circuit breaker according to claim 1 or 7, wherein, a reinforcing support (23) is coupled to the grid plate base (3).

Ansprüche

1. Bewegliches Kontaktglied einer Unterbrechungseinrichtung aufweisend eine Isolierhalteeinrichtung (1), ein Paar von Fixierplatten (2), ein Gitterplattengestell (3), ein Satz von Gitterplatten (4), eine sich drehende Haltewelle (5), ein Satz von parallelen Leitern (6) und ein flexibles leitendes Verbindungskabel (6), wobei die oberen Enden des Paars von Fixierplatten (2) mit zwei Seiten der Isolierhalteeinrichtung (1) verbunden sind; wobei das Gitterplattengestell (3) den Satz von parallelen Leitern (6) abdeckt, wobei zwei Enden mit dem Paar von Fixierplatten (2) fixiert sind; wobei der mittlere Teil des Satzes von parallelen Leitern (6) drehbar an dem mittleren Teil der sich drehenden Haltewelle (5) befestigt ist, wobei die zwei Enden, die mit dem Paar von Fixierplatten (2) fixiert sind, und die parallelen Leiter (6) mit einem Ende des flexiblen leitenden Verbindungskabel (7) verbunden sind; wobei das bewegliche Kontaktglied des Weiteren eine Fixierhalteeinrichtung (10) aufweist, die an der Isolierhalteeinrichtung oder dem Gitterplattengestell (3) fixiert ist, verbindend den Satz von parallelen Leitern (6); wobei sich zumindest ein Leiter im Satz von parallelen Leitern (6) in der Fixierhalteeinrichtung (10) befindet und sich in einer Position befindet, die mit den anderen Leitern übereinstimmend ist; wobei der Satz von Gitterplatten (4) entweder auf dem Gitterplattengestell (3) oder der Isolierhalfieeinrichtung (1) angeordnet ist,
dadurch gekennzeichnet, dass
das bewegliche Kontaktglied des Weiteren einen leitenden Block (8) aufweist, wobei die unteren Enden des Paars von Fixierplatten (2) mit dem leitenden Block (8) verbunden sind; wobei das andere Ende des flexiblen leitenden Verbindungskabels (7) an dem leitenden Block (8) befestigt ist; und
wobei die Fixierhalteeinrichtung (10) eine parallele Leiter aufnehmende Kavität (3) aufweist, die eingerichtet ist, zumindest einen der Leiter im Satz von parallelen Leitern (6) auszunehmen; wobei ein Paar von Seitenwänden (31) der parallele Leiter aufnehmenden Kavität (30) senkrecht zur sich drehenden Haltewelle (5) orientiert ist, und wobei die Bodenwand (32) der parallele Leiter aufnehmenden Kavität (30) an der Isolierhalteeinrichtung (1) oder dem Gitterplattengestell (3) befestigt ist.

2. Bewegliches Kontaktglied einer Unterbrechungseinrichtung gemäß Anspruch 1, wobei Wellenlöcher (28), die einander hinsichtlich einer Position entsprechen, an dem Paar von Seitenwänden (31) angeordnet sind und eingerichtet sind, einen Weg freizulassen und einen Pfad für die sich drehende Haltewelle (5) vorzugehen; und wobei die Bodenwand (32) an der Isolierhalteeinrichtung (1) fixiert ist; wobei erste Stifte (20) zusätzlich an den Rändern des Paars von Seitenwänden (32) auf der Seite angeordnet sind, wo das Paar von Seitenwänden (31) dem Gitterplattengestell (3) gegenüberliegt, und wobei die ersten Stifte (20) in erste Stifte aufnehmende Schlitze (24) an dem Gitterplattenbasisgestell (3) eingefügt sind.

3. Bewegliches Kontaktglied einer Unterbrechungseinrichtung gemäß Anspruch 1, wobei Schlitze (33), die einander hinsichtlich einer Position entsprechen und die eingerichtet sind, einen Weg freizulassen und einen Pfad für die sich drehende Haltewelle (5) vorzusehen, an dem Paar von Seitenwänden (31) angeordnet sind, und wobei die Bodenwand (32) an dem Gitterplattengestell (3) befestigt ist; wobei zusätzlich zweite Stifte (34) an dem Paar von Seitenwänden (31) in einer verringerten Weise in der Richtung angeordnet sind, in welcher das Paar von Seitenwänden (31) der Isolierhalteeinrichtung (1) gegenüberliegt, und wobei die zweiten Stifte (34) in zweite Stifte aufnehmende Schlitze (35) an der Isolierhalteeinrichtung (1) eingefügt sind.

4. Bewegliches Kontaktglied einer Unterbrechungseinrichtung gemäß Anspruch 2, wobei die Bodenwand (32) an dem mittleren Teil der lsolierhalteeinrichtung (1) befestigt ist.

5. Bewegliches Kontaktglied einer Unterbrechungseinrichtung gemäß Anspruch 3, wobei die Bodenwand (32) an dem mittleren Teil des Gitterplattengestells (3) befestigt ist.

6. Bewegliches Kontaktglied einer Unterbrechungseinrichtung gemäß Anspruch 2 oder 3, wobei eine Halteklemme (11) an einem oberen Teil von jeder Seitenwand in dem Paar von Seitenwänden (31) angeordnet ist.

7. Bewegliches Kontaktglied einer Unterbrechungseinrichtung gemäß Anspruch 1, wobei der Satz von Gitterplatten (4) auf dem Gitterplattengestell (3) angeordnet ist und wobei der Satz von Gitterplatten (4) in den Spalt (29) zwischen den Leitern in dem Satz von parallelen Leitern (6) eingebettet ist.

8. Bewegliches Kontaktglied einer Unterbrechungseinrichtung gemäß Anspruch 1, wobei der Satz von Gitterplatten (4) an der Isolierhalteeinrichtung (1) angeordnet ist und wobei der Satz von Gitterplatten (4) in den Spalt (29) zwischen Leitern in dem Satz von parallelen Leitern (6) eingebettet ist.

9. Bewegliches Kontaktglied einer Unterbrechungseinrichtung gemäß Anspruch 1 oder 7, wobei eine Verstärkungshaltereinrichtung (23) an das Gitterplattengestell (3) gekoppelt ist.

Revendications

1. Élément de contact mobile d'un disjoncteur comprenant un support isolant (1), une paire de plaques de fixation (2), une embase de plaques de grille (3), un ensemble de plaques de grille (4), un axe de support tournant (5), un ensemble de conducteurs parallèles (6) et un câblage de liaison conducteur souple (7), dans lequel les extrémités supérieures de la paire de plaques de fixation (2) sont fixées sur les deux côtés du support isolant (1) ; l'embase de plaques de grille (3) recouvre l'ensemble de conducteurs parallèles (6), deux extrémités étant fixées à la paire de plaques de fixation (2) ; la partie médiane de l'ensemble de conducteurs parallèles (6) est montée pivotante sur la partie médiane de l'axe de support tournant (5) dont les deux extrémités sont fixées à la paire de plaques de fixation (2), et les conducteurs parallèles (6) sont réunis à une première extrémité du câblage de liaison conducteur souple (7) ; l'élément de contact mobile comprenant en outre un support de fixation (10) qui est monté sur le support isolant (1) ou sur l'embase de plaques de grille (3) en accompagnant de l'ensemble de conducteurs parallèles (6) ; au moins un conducteur dans l'ensemble de conducteurs parallèles (6) se trouve dans le support de fixation (10) et à une position cohérente avec celle des autres conducteurs ; l'ensemble de plaques de grille (4) est agencé soit sur l'embase de plaques de grille (3), soit sur le support isolant (1),
caractérisé en ce que
l'élément de contact mobile comprend en outre un bloc conducteur (8) dans lequel les extrémités inférieures de la paire de plaques de fixation (2) sont raccordées au bloc conducteur (8) ; l'autre extrémité du câblage de liaison conducteur souple (7) est fixée au bloc conducteur (8), et
dans lequel le support de fixation (10) comporte une cavité de réception de conducteurs parallèles (3) conçue pour recevoir au moins l'un des conducteurs de l'ensemble des conducteurs parallèles (6) ; une paire de parois latérales (31) de la cavité de réception de conducteurs parallèles (30) étant perpendiculaire à l'axe de support tournant (5), et la paroi inférieure (32) de la cavité de réception de conducteurs parallèles (30) étant fixée au support isolant (1) ou à l'embase de plaques de grille (3).

2. Élément de contact mobile d'un disjoncteur selon la revendication 1, dans lequel des trous d'axe (28) en position correspondant l'une à l'autre sont agencés sur la paire de parois latérales (31) et sont conçus pour laisser un chemin et fournir un trajet à l'axe de support tournant (5) ; et la paroi inférieure (32) est fixée au support isolant (1) ; en outre, des premières broches (20) sont agencées sur les bords de la paire de parois latérales (32) sur le côté où la paire de parois latérales (31) fait face à l'embase de plaques de grille (3), et les premières broches (20) sont insérées dans des premières fentes de réception de broche (24) sur l'embase de plaques de grille (3).

3. Élément de contact mobile d'un disjoncteur selon la revendication 1, dans lequel des fentes (33) en position correspondant l'une à l'autre et conçues pour laisser un chemin et fournir un trajet à l'axe de support tournant (5) sont agencées sur la paire de parois latérales (31), et la paroi inférieure (32) est fixée à l'embase de plaques de grille (3) ; de plus, des secondes broches (34) sont agencées sur la paire de parois latérales (31) sous forme réduite dans la direction dans laquelle la paire de parois latérales (31) fait face au support isolant (1), et les secondes broches (34) sont insérées dans des secondes fentes de réception de broche (35) sur le support isolant (1).

4. Élément de contact mobile d'un disjoncteur selon la revendication 2, dans lequel la paroi inférieure (32) est fixée sur la partie médiane du support isolant (1).

5. Élément de contact mobile d'un disjoncteur selon la revendication 3, dans lequel la paroi inférieure (32) est fixée sur la partie médiane de l'embase de plaques de grille (3).

6. Élément de contact mobile d'un disjoncteur selon la revendication 2 ou la revendication 3, dans lequel une attache de support (11) est disposée sur la partie supérieure de chaque paroi latérale de la paire de parois latérales (31).

7. Élément de contact mobile d'un disjoncteur selon la revendication 1, dans lequel l'ensemble de plaques de grille (4) est disposé sur l'embase de plaques de grille (3) et est intégré dans les intervalles (29) situés entre les conducteurs dans l'ensemble de conducteurs parallèles (6),

8. Élément de contact mobile d'un disjoncteur selon la revendication 1, dans lequel l'ensemble de plaques de grille (4) est disposé sur le support isolant (1) et est intégré dans les intervalle (29) situés entre les conducteurs dans l'ensemble de conducteurs parallèles (6).

9. Élément de contact mobile d'un disjoncteur selon la revendication 1 ou la revendication 7, dans lequel un support de renforcement (23) est accouplé à l'embase de plaques de grille (3).

Drawing