JP6441230B2 - Electrical switching assembly - Google Patents

Description

  The present invention relates to a modular electrical switching device comprising a switching block including unit switching blocks each having electrical switching means, and an actuation block for the unit switching block including an electromagnetic type actuator controlled by the control means. About.

  The invention also relates to a switching assembly comprising a first module electrical switching device and a second module electrical switching device according to the invention. The devices are arranged side by side so as to be electrically connected.

  The use of switching devices such as unit switching blocks and / or circuit breakers, contactors-breakers and contactors with multipolar protection is known. The unit switching block can be housed in a multipolar casing (US Pat. No. 4,648,772). The multi-pole device becomes an integrated module, and the same switching block can be duplicated three times for a three-pole switching device and four times for a four-pole device.

  When many switching blocks are assembled in the casing of a switching device, the problem of synchronous control of different switching blocks arises in particular. In effect, complex existing solutions are characterized by means for controlling and operating the switching block. The use of complex control measures gradually raises reliability issues.

  In addition, some switching devices include electrical control means. The use of electrical control means generally greatly reduces device volume and device wear. It requires a contactor to communicate. However, further problems may arise if the control means is driven and powered by control electronics. In practice, the level and duration of maintenance required for electronic and electromechanical means contained in the same equipment is not the same, although overall maintenance should remain easy and inexpensive . Even more so, the lifetimes of electrical control means and coupled electromechanical technology are very different depending on the application.

  In this way, the modularity of the switching device allows the user to obtain a product whose performance level is truly suitable for each person's use. The result of this modularity is the complexity of manufacturing such a multipolar switching device. This complexity exists in terms of architecture manufacturing and switching device maintenance.

  The modularity of multipolar switching devices can also be related to the installation and use of electronic thermal protection devices. Incorporating removable electronic thermal protection in the volume of the switching device can be done at the cost of a complexity adaptation. This additional complexity can become even greater when many switching devices are coupled simultaneously to control the motor, particularly by installation in reversing switch mode.

  Therefore, the present invention aims to remedy the drawbacks of the prior art by proposing an electronically controlled electrical switching device with a simplified modular architecture that accepts one or more switching blocks. To do.

  The actuation block of the module switching device according to the present invention comprises an actuation module incorporating an electromagnetic actuator and a removable electrical control module incorporating a control means, the electrical control module being positioned on the actuation module Sometimes including a removable electrical control module including adaptive connection means intended to be interconnected with the actuation coil of the electromagnetic actuator. The actuation coil includes control windings each including a connection terminal. In the first structure, the adaptive connection means of the removable electrical control module is arranged to be connected to the connection terminal and arranged in series with the control winding. In the second structure, the adaptive connection means is disposed so as to be connected to the connection terminal, and is disposed in parallel to the control winding.

  According to a first particular embodiment, the adaptive connection means comprises an electrical track that is directly incorporated into the printed circuit board of the removable electrical control module so as to connect in series with the two control windings. Yes.

  According to a second specific embodiment, the adaptive connection means is directly on the printed circuit board (PCB) of the removable electrical control module (250) so as to connect in parallel to the two control windings (230). Includes an electric truck that is built into.

  Preferably, the modular electrical switching device is capable of removably securing the actuation block on the switching block and comprises rapid fixing means including at least one coupling hook, the coupling hook comprising the switching block Is fixed to the actuation block and fixed, and is intended to cooperate with the actuation device of the movable contact of the unit switching block for transmitting the movement of the electromagnetic actuator to the movable contact. The coupling hook is fixed to the movable keeper of the electromagnetic actuator.

  Preferably, the modular electrical switching device comprises a removable thermal protection module including a current sensor intended to be positioned in the casing around the connection line of the unit switching block of the switching block, the casing comprising a module Removable from the switching device.

  Advantageously, the removable thermal protection module includes communication and power supply means intended to be automatically connected to the removable electrical control module, the communication and power supply means being removable It is arranged to supply power to the thermal protection module and to transmit measurements made by the current sensor.

  Preferably, the unit switching block is controlled in a synchronized manner by the movable keeper of the electromagnetic actuator of the actuation block to control the opening of the electrical contact by moving the movable contact of the unit switching block. Yes.

  According to one embodiment, the coupling hook has a suitable seating surface to transmit the movement of the movable keeper to the movable contact, from the closed position to the opened position and vice versa. It includes an inner surface having a first edge and a second edge, respectively.

  Advantageously, the first edge of the inner surface of the coupling hook includes a slot intended to receive the attachment head of the movable contact holder, the first edge from its closed position In a first direction of movement to the open position, it includes a seating surface intended to transmit the movement of the movable keeper to the movable contact holder of the movable contact.

  Advantageously, the second edge is intended to transmit the movement of the movable keeper to the movable contact holder of the movable contact in the second direction of movement from the open position to its closed position. The seat surface is included.

  According to a particular mode of development of the modular electrical switching device, the modular electrical switching device comprises three unit switching blocks, and the actuation device of the block controls the opening of the electrical contacts by moving the movable contacts. Therefore, each is controlled by the actuation block in a synchronized manner.

  Preferably, the actuation block includes a tray fixed to the movable keeper, the tray being intended to cooperate with a snug attachment head of the movable contact holder fixed to the movable contact of the unit switching block, respectively. It has three coupling hooks.

  The electrical switching assembly according to the present invention comprises electrical conductors respectively positioned in the second cavities of the two bases of the two modular contactors.

  Other advantages and features will become more apparent from the following specific embodiments of the invention, given non-limiting examples and shown in the accompanying drawings.

FIG. 1 is a perspective view showing a module electrical switching device according to the present invention. 2 is a perspective view of the modular electrical switching device according to FIG. 1 during assembly. 3 is a sectional view showing the switching block and the actuation block according to FIG. 2 in a non-assembled position. 4 is a cross-sectional view showing the switching block and the actuation block according to FIG. 2 in a position during assembly. FIG. 5A is an exploded perspective view showing an actuation block of the module electrical switching device according to FIG. 5B is a perspective view showing an actuation block of the module electrical switching device according to FIG. 5A. FIG. 6A is a cross-sectional view showing a unit switching block during the process of the method for setting the contact compression stroke according to the present invention. FIG. 6B is a perspective view showing the unit switching block during the steps of the method for setting the contact compression stroke according to the present invention. FIG. 7A is a cross-sectional view showing a unit switching block during the process of the method for setting the contact compression stroke according to the present invention. FIG. 7B is a perspective view showing the unit switching block during the steps of the method for setting the contact compression stroke according to the present invention. FIG. 8A is a cross-sectional view showing a unit switching block during the process of the method for setting the contact compression stroke according to the present invention. FIG. 8B is a perspective view showing the unit switching block during the steps of the method for setting the contact compression stroke according to the present invention. FIG. 9A is a cross-sectional view showing the unit switching block in the closed position. FIG. 9B is a cross-sectional view showing the unit switching block in the open position. FIG. 10A is a partial cross-sectional view showing a modular electrical switching device according to the present invention during installation. FIG. 10B is a partial cross-sectional view showing a modular electrical switching device according to the present invention during installation. FIG. 11 shows two assembled half shells of a particular embodiment of a unit switching block of a switching block according to the present invention. FIG. 12 shows the two half shells of the switching block according to FIG. 11 during assembly. FIG. 13 is a perspective view showing a base of a switching block according to an embodiment of the present invention. FIG. 14 shows two assembled half shells of another embodiment of a unit switching block of a switching block according to the present invention. FIG. 15 shows two half shells of the switching block according to FIG. 14 during assembly. FIG. 16 is a perspective view in partial section showing a switching block according to one embodiment. FIG. 17 is a perspective view showing a different specific embodiment of the switching means of the unit switching block. FIG. 18 is a perspective view showing a different specific embodiment of the switching means of the unit switching block. FIG. 19 is a wiring diagram showing two switching devices arranged upstream of the motor in the reverse switch type mode. 20 is a wiring diagram shown in FIG. 19 according to a non-functional embodiment. FIG. 21 is a perspective view showing two switching devices wired in the inverting switch type mode. FIG. 22 is a perspective view showing two switching devices wired in the inverting switch type mode. FIG. 23 is a side perspective view showing two switching devices wired in the reverse switch type mode. FIG. 24 is a side perspective view showing two switching devices wired in the reverse switch type mode. FIG. 25 is a side perspective view showing two switching devices wired in the inverting switch type mode. FIG. 26 is a perspective view showing a link bar used to connect two module switching devices in the reverse switch type mode. FIG. 27 is a perspective view showing a link bar used to connect two module switching devices in the reverse switch type mode. FIG. 28A is a perspective view showing an auxiliary contact block in a first specific mode in which the present invention is developed. FIG. 28B is a perspective view showing the auxiliary contact block in the first specific mode in which the present invention is developed. FIG. 29A is a perspective view showing an auxiliary contact block in a second specific mode in which the present invention is developed. FIG. 29B is a perspective view showing the auxiliary contact block in the second specific mode in which the present invention is developed. FIG. 30A is a perspective view showing a modification of the control means of the auxiliary contact block according to FIGS. 29A and 29B. FIG. 30B is a perspective view showing a modification of the control means of the auxiliary contact block according to FIGS. 29A and 29B. FIG. 31A is a perspective view showing a modification of the movable assembly 220 of the actuation block of the module switching device according to the present invention. FIG. 31B is a perspective view showing a modification of the movable assembly 220 of the actuation block of the module switching device according to the present invention.

  As shown in FIG. 1, the module electrical switching device 1 according to the present invention includes a switching block 100 coupled to an actuation block 200. The modular electrical switching device 1 is preferably a contactor. The terms contactor, switching device or modular electrical switching device are used interchangeably below.

  According to a preferred embodiment of the present invention, the modular contactor 1 according to the present invention includes rapid fixing means that allow the actuation block 200 to be removably fixed on the switching block 100. .

  Further, as shown in FIGS. 10A and 10B, according to this preferred embodiment of the present invention, the actuation block 200 includes an actuation module 230 connected to a removable electrical control module 250. Yes.

  The removable electrical control module 250 may include electrical control means powered by control electronics. The terms removable electrical control module 250 or removable electronic control module 250 are used interchangeably below.

  The actuation module 230 includes an electromagnetic type actuator in a known manner. The actuator is more specifically suitable for being moved relative to the fixed yoke 201 between two positions, a fixed yoke 201 and an open position and a closed position. A movable keeper 202. Further, the electromagnetic actuator includes an actuation coil, and this actuation coil can move the movable keeper 202 from the opened position to the closed position when a control current flows.

  The restoring spring 204 may move the movable keeper 202 from the closed position to the opened position. As shown in FIGS. 3 and 4, according to a specific embodiment, the restoring spring 204 acts on the movable keeper 202 via the rotating lever 205.

  As shown in FIGS. 5A and 5B, according to the preferential mode of actuator development, the fixed keeper 201 includes two outer branches and a lateral keeper anchored to the first end of the outer branch. , Including a U-shaped part. The actuator preferably includes an actuation coil that includes two control windings 203 that are electrically coupled. The two windings each include a longitudinal axis that is substantially assimilated with the axis of the outer branch of the U-shaped magnetic yoke. In practice, the control winding 203 is wound around an insulating field frame disposed in the outer branch of the magnetic yoke 201. The two control windings 203 are preferentially the same.

  As shown in FIGS. 5A and 5B, in accordance with an embodiment of the present invention, the restoring spring 204 is suitable for moving the movable assembly 220 from a closed position to an open position. As shown in FIG. 5B, the movable assembly 220 includes an actuator movable keeper 202 positioned on a tray 211. The restoring spring acts on a multifunctional lever 215 fixed on the tray 211. The multi-functional lever 205 is arranged to manage the balance of the movable keeper 202 to allow simultaneous closing of the three power poles while reducing friction.

  As shown in FIGS. 29A and 29B, the multi-functional lever 205 may also drive the auxiliary contact block and provide an indication on the front of the module electrical switching device 1.

  As shown in FIGS. 31A and 31B, the multi-function lever 205 can be controlled in two ways. As shown in FIG. 31A, the torsion spring 206 is maintained in the operating position. As shown in FIG. 31B, the compression spring is maintained in the operating position.

  The actuator also preferably includes a pole plate 215 secured on the outer branch of the U-shaped magnetic yoke. The plate can improve the magnetic behavior of the actuator.

  The actuator can be of monostable or bistable type. In the bistable type, the actuator preferably includes at least one permanent magnet disposed between the two pole plates 215.

  According to one mode of development of the invention, not shown, the magnetic yoke 201 includes an E-shaped part, which comprises two outer branches, at least one central branch, an outer branch and a central part. And a horizontal keeper fixed to the first end of the branch. The movable keeper is disposed toward the second end of the outer branch and moves in translation. The moveable keeper also includes an E-shaped portion that includes two outer branches, at least one central branch, and a lateral keeper secured to the first end of the outer branch and the central branch. And have. The control coil includes a longitudinal axis that is substantially assimilated with the axis of the central branch of the E-shaped magnetic yoke. In practice, the control coil includes a winding wound around an insulating field frame located in the central branch of the magnetic yoke.

  The actuator is positioned in the casing of the actuation module 230. The actuation winding 203 of the actuation coil includes a connection terminal 207 intended to contact the adaptive connection means of the removable electrical control module 250. As shown particularly in FIG. 5B, each control winding 203 includes two connection terminals 207.

  As shown in FIG. 28A, according to the first exemplary embodiment, the four connection terminals 207 of the two control windings 203 are preferably aligned. As shown in FIG. 5B, according to the second exemplary embodiment, the four connection terminals 207 of the two control windings 203 are preferably arranged diagonally. These two arrangements of the terminal 207 can be particularly adapted to the different structures of the removable electrical control module 250.

  According to this preferred embodiment of the present invention, the removable electrical control module 250 includes electrical control means powered by control electronics. As a result, the removable electrical control module 250 is intended to ensure repetitive and constant operation of the actuator over a wide power supply voltage range. The removable electrical control module is positioned and secured on the casing of the actuation module 230. When positioned on the casing, the connection terminal 207 of the control winding 203 is automatically interconnected with the adaptive connection means of the removable electrical control module 250. According to a preferential embodiment, the adaptive connection means are integrated directly on the printed circuit board PCB of the removable electrical control module 250. Depending on the version of the electronic control means used and the control voltage of the module contactor, the connection between the two control windings 203 distributed seamlessly to the two outer branches of the actuator magnetic yoke 201 is Can be made in series or in parallel. The adaptive connection means allows two control windings 203 to be connected in series or in parallel when the removable electrical control module 250 is connected to the actuation module 230. The adaptive connection means thus makes it possible to widely adapt to the application needs while holding an actuation coil common to all applications.

  According to a first particular embodiment of the adaptive connection means, the removable electrical control module 250 printed circuit board (PCB) was designed and configured for serial connection to the terminal 207 of the control winding 203. Includes an electric truck.

  According to a second specific embodiment of the adaptive connection means, the printed circuit board (PCB) of the removable electrical control module 250 was designed and configured to connect in parallel to the terminal 207 of the control winding 203. Includes an electric truck. Control commands and power supply for the control winding 203 go through these connection terminals 207.

  This removable electrical control module 250 may include many variations depending on the targeted application (especially depending on the network voltage). The module is preferably finally attached to a contactor or contactor (starter) equipped with thermal protection. In this way, the final selection of the electronic control module to be installed allows the installer to make a delayed differentiation. The removable electrical control module 250 also allows communication including, for example, an installation management computer or structural tool.

  The switching block 100 of the contactor 1 according to the present invention includes one or more electrodes. According to the embodiment shown in FIGS. 1 and 2, the contactor includes three electrodes and is therefore referred to as a three-pole contactor. A unit switching block 80, usually called a switching valve, is coupled to each electrode. The three unit switching blocks 80 are controlled in a synchronized manner by an actuation block 200 acting on the actuation device 34 of the unit switching block 80.

  According to certain embodiments, the switching blocks can be controlled in a synchronized and simultaneous manner. In other words, all the blocks are moved simultaneously.

  According to certain embodiments, the switching blocks may be controlled in a manner that is synchronized and performed non-simultaneously. In other words, all blocks are moved by the effect of the action of the actuation block, but a time offset is observed between the movement of each block. This time offset is reproducible and controlled.

  As shown in FIGS. 12 and 15, the unit switching block 80 according to the present invention includes a casing 31 formed by two half shells 80A. The two half shells 80A of the casing 31 are preferably made of a molded plastic material. The electrical contact is positioned inside the casing 31. The half shells 80A are assembled to form a substantially parallelepiped shaped assembly that develops in the longitudinal plane of the reference XZ.

  According to a particular embodiment, the two half shells 80A forming the casing 31 are preferably identical in shape. By way of example, “identical shape” should be understood to mean that the two half-shells are preferably made by casting and obtained from the same mold. . This presents the industrial advantages of managing a single variant part and a single investment. The casing 31 includes two main surfaces 81 arranged parallel to the longitudinal plane XZ. The casing further includes two side surfaces 82, an upper surface 83, and a bottom surface 84.

  As shown in FIGS. 16 and 17, the unit switching block 80 includes an electrical switching means 30 composed of two fixed contacts 32 respectively connected to the electrical connection terminal block 500 by connection lands 45. The two fixed contacts 32 each include an electrical contact region 37. The electrical switching means 30 is located in the internal volume of the casing 31. The internal volume is separated by two half shells 80A.

  The electrical switching means 30 further includes a bridge-shaped movable contact 33 that includes an elongated body along the longitudinal axis X. According to this embodiment, the movable contact bridge 33 includes two ends on which two contact areas 36 are located, each of the contact areas 36 being in contact with the fixed contact 32 at the position of the switching means closed. Can cooperate with region 37.

  The terms “movable contact” or “movable contact bridge” are not distinguished in the following description.

  In this closed position, the elastic means 25, in particular a helical spring, can ensure sufficient contact pressure between the contact area 36 and the contact area 37 to ensure the establishment and flow of current in good condition. . The elastic means 25 is generally called a pole spring. This contact pressure is provided for a permanent flow of current without excessive overheating and is provided to ensure sufficient electrical durability.

  The two open volumes 35 are defined so as to correspond to the space in which the contact area 37 of the fixed contact 32 and the contact area 36 coupled to the movable contact 33 are disposed. Furthermore, each open volume 35 is coupled to an arc extinguishing chamber. The arc-extinguishing chamber, which is open on the open volume 35, has two parallel walls arranged on either side of the longitudinal geometric reference plane XZ, and a rear wall remote from the open volume 35. The bottom wall is separated from the top wall.

  According to the arc chamber embodiment, the arc chamber includes a stack of at least two flat metal plates 40 perpendicular to the longitudinal geometric reference plane XZ. These metal plates, called fins, are intended to remove ions from the arc. The metal plate 40 is preferably made of a ferromagnetic material. The fins tend to exert a ferromagnetic attractive force on the arc. The fin is substantially rectangular in shape and includes a longitudinal axis and a central axis.

  As shown in FIG. 18, according to another embodiment of the arc-extinguishing chamber, the chamber is delimited by two flanges 68 of ferromagnetic material. The two side planes 68 are parallel and arranged on both sides of the central longitudinal plane XZ. The two side flanges 68 are arranged to fit on one of the ends of the movable bridge 33 over the entire movement between the open and closed positions. In other words, the two side flanges 68 are spaced apart from each other to allow movement of the movable contact bridge 33. The inner wall of the flange 68 includes a layer of insulating material. The location of the layer of insulating material on the flange 68 may avoid arc attachment on the inner wall of the flange 68. These layers are preferably made of a material gazogen.

  The arc extinguishing chamber is also delimited by a rear wall 72 arranged perpendicular to the plane XZ. The rear wall is located away from the open volume 35 because it is positioned on the opposite side of the contact volume 36, 37 from the open volume. The rear wall 72 connects the two side flanges 68 to form a substantially U-shaped metal assembly. The rear wall 72 connects the two flanges beyond a portion of their height.

  Preferably, the two side flanges 68 extend in a direction parallel to the central longitudinal plane XZ so as to fit entirely in the contact area 36 of the movable contact bridge 33. More specifically, the two side flanges 68 extend inside the arc extinguishing chamber 24 so as to completely surround the contact area 36 of the movable contact bridge 33. In other words, the longitudinal development of the flanges can laterally close each open volume 35 in order to guide the outflow of ionized particles upon opening of the electrical contacts.

  The wall of each arc extinguishing chamber 24 may include a metal baffle 69 at the upper end. As shown in FIG. 18, the baffle electrically connects the fixed contact 32 to the rear wall 72 in order to form a part of the upper end of the metal wall of the arc extinguishing chamber.

  According to a variant, the movable contact bridge 33 includes an arc horn 39 at each of the two ends. The arc horn extends toward the rear wall 72 of the arc extinguishing chamber beyond the contact area. As a typical embodiment, the arc horn 39 is inclined with respect to the longitudinal axis X of the movable contact bridge 33.

  The casing 31 of the unit switching block 80 is intended to be positioned on the base 110 of the switching block 100 of the contactor 1. The base 110 includes an inner surface having a first cavity 120 in which the unit switching block 80 is positioned. As a result, the bottom surface 84 of the casing 31 is positioned toward the first cavity 120 of the base 110. The main surface 81 is attached to the separation partition wall 111 of the base 110. The separation partition wall 111 is positioned at the outer edge of the base 110, and thus the wall of the module electrical switching device 1 is formed.

  The base 110 includes a first cavity 120 having at least three compartments each intended to cooperate with the unit switching block 80. Each unit switching block 80 cooperates with the base 100 to create at least one outflow path for extinguishing gases that allows switching without noise or ionized gas to the outside of the base.

  As shown in FIGS. 11-13, according to a particular embodiment of the unit switching block, the two half-shells according to the present invention can be used for module electrical switching to delimit two outflow paths for the arc-extinguishing gas. It is intended to cooperate with the compartment of the first cavity 120 of the base 110 of the device 1. Each outflow path is consequently connected to the internal volume of the casing 31 by an opening 86 made in the half shell 80A. The half-shell includes a rib 85 intended to cooperate with a section of the first cavity 120 of the base 110 of the modular electrical switching device 1 to delimit the outflow path for the arc-extinguishing gas.

  As shown in FIGS. 11 to 13, according to the first modification, the ribs 85 of the two half shells 80A assembled to each other form the bottom rib 805 on the bottom surface 84 of the casing 31 at the contact surface. ing. The bottom rib 805 develops in a direction parallel to the longitudinal plane XZ. The ribs are intended to cooperate with the first cavity 120 of the base 110 of the module electrical switching device 1 to delimit the two outflow paths for the arc-extinguishing gas, each path being a half-shell It is connected to the internal volume of the casing 31 by an opening 86 made in 80A. In practice, the casing 31 of the unit switching block 80 is intended to be positioned on the base 110 of the modular electrical switching device 1. As a result, the bottom surface 84 of the casing 31 is positioned toward the first cavity 120 of the base 110. More specifically, the bottom rib 805 existing on the bottom surface 84 of the casing 31, together with the cavity 120, separates two outflow paths for the arc extinguishing gas. Each path is connected to the internal volume of the casing by an opening 86 made in the half shell 80A. According to a particular embodiment, the opening 86 preferably passes through the bottom surface 84 of the casing 31. More specifically, each half-shell 80A includes a corresponding opening 86. In order to effectively reduce the external appearance of the arc-extinguishing gas, a filtering block penetrating the hole is arranged in each outflow path. In a typical embodiment, a grill 87 is disposed over the opening 86 in which the casing 31 appears. The bottom rib 805 preferably protrudes with respect to the bottom surface 84. According to this particular embodiment, each section of the first cavity 120 of the base 110 includes a recessed rib 121. As a result, the bottom rib 805 protruding from the casing 31 is located in the recess of the first cavity 120 of the base 110 when the switching block 80 is positioned in the module electrical switching device 1 so as to separate two distinct outflow paths. It is arranged to be arranged. The bottom rib 805 includes a convex and / or concave portion. In this way, the bottom surface 84 of the unit switching block 80 has a shape capable of adjusting the cross section of the gas outflow path along this path, and alternately repeats the expansion region and the compression region. Alternating the expansion and compression regions can reduce the amount of manifestation in the exhaust passage. Each section of the first cavity 120 is recessed, and an outflow path for arc-extinguishing gas is formed by a wall formed by a part of the bottom surface 84 of the unit switching block 80 and a part of the base 110 of the module electrical switching device. And a wall formed by. Each section of the first cavity 120 is provided on a surface intended to be arranged toward the bottom surface 84 of the casing 31 of the unit switching block 80. The surface includes a recessed area 121 intended to be positioned so that a bottom rib 805 protruding from the casing delimits two distinct outflow paths. In addition, each section of the first cavity 120 of the base 110 includes a wall in which two outflow holes 122 for gas are formed. Each hole 122 is connected to one of the outflow paths.

  As shown in FIGS. 14 and 15, according to the second modification, the two half shells include ribs 85 on their main surfaces 81, respectively. The rib 85 is preferably retracted from the main surface 81. The casing 31 includes two ribs 85 that develop in a direction parallel to the longitudinal plane XZ. The ribs are intended to cooperate with the first cavity 120 of the base 110 of the modular electrical switching device 1. Each path is connected to the internal volume of the casing by an opening 86 made in the half shell 80A. According to a particular embodiment, the opening 86 preferably passes through the bottom surface 84 of the casing 31. More specifically, each half-shell 80A includes an emerging opening 86.

  In addition, the base 110 includes an outer surface intended to cooperate with a frame or a fixed rail of the German Industrial Standard rail type (DIN rail type).

  According to one embodiment, the outer surface includes a second cavity 130 having an inner volume bounded by walls. The second cavity 130 is thus positioned between the outer surface of the base 110 and the first cavity 120 intended for the positioning of the switching block 80.

  According to one development mode of the present invention, the second cavities 130 appear in close proximity to the first openings respectively appearing in the main wall of the module contactor 1 and the connection lands 45 of the module contactor 1. 2 connection openings 132.

  As an exemplary embodiment, the first opening of the second cavity 130 is preferably made of a shatterable wall of the base 110. Depending on the use of the modular electrical switching device, the shatterable part is removed or not removed. As shown in FIGS. 1 and 2, according to the first embodiment, a portion that can be crushed is not removed. As shown in FIGS. 21 and 22, the shatterable portion of the base 110 has been removed on the two main surfaces of the switching device to leave a passage for the conductor 301.

  The first and second openings allow passage of the conductor 301 connecting at least one electrode of the first module contactor 1 to the electrode of the second module contactor 2 arranged relative to the first. I have to.

  According to one embodiment shown in FIGS. 21 to 25, the internal volume of the second cavity 130 has a substantially parallelepiped shape and has an open surface on the outer surface of the module contactors 1, 2. doing.

  As shown in FIGS. 21 to 27, according to the first specific embodiment, the second cavity 130 includes an edge including at least one connection opening 132 that appears in the connection land 45 of the unit switching block 80. At least one path having a portion. The at least one path extends in a direction substantially perpendicular to the longitudinal plane XZ and passes completely through the base 110 appearing on both sides of the base. In an exemplary embodiment, the at least one path includes a substantially parallelepiped volume having two substantially parallel edges.

  Preferably, the second cavity 130 includes two substantially identical paths disposed parallel to each other. Each path has a parallelepiped shape. As a result, the internal volume of each path includes a first opening that appears in the main wall of each of the module contactors 1 and 2 and a second connection that appears in the vicinity of the connection land 45 of the module contactors 1 and 2. And an opening 132. Further, the two paths are separated by a partition wall. The partition is intended to separate the upstream portion from the downstream portion. The bulkhead may be intended to cooperate with a German rail rail type stationary rail. In this way, when the second cavity 130 includes two paths, only one of the two edges of each path includes the connection opening 132. The second connection opening 132 of the first path appears close to the connection land upstream portion of the module contactors 1 and 2, and the second connection opening 132 of the second path 130 is the module contactor. Appears close to the upstream of the 1 and 2 connecting lands.

  When the second cavity 130 includes a single path of parallelepiped shape, the connection openings 132 are disposed at two parallel edges of the path, each edge being a reversing bar set. Each including a connection opening suitable for being passed by one of the inversion bars.

  According to a second specific embodiment, not shown, the second cavity 130 includes two slots each cut at the side of the base 110. These slots appear in the connection land 45 of the unit switching block 80, respectively. Each slot is intended to receive a complete inversion bar set 300 that includes one or more inversion bars 301.

  As shown in FIG. 1, the modular electrical switching device 1 further includes one or more fault detection devices, in particular thermal. The detection device is coupled to the actuation block 200 to control the opening of the electrical contacts via the actuator. As shown in FIG. 1, according to an embodiment of the present invention, the modular electrical switching device 1 includes a removable thermal protection module 400.

  As shown in FIGS. 1 and 2, a removable thermal protection module 400 according to the present invention includes a casing in which one or more annular-shaped current sensors are positioned. The sensor is intended to be positioned around the connection land 45 of the unit switching block 85 of the switching block 100. The current sensor can be of the Rogoski type. According to the particular embodiment shown in FIGS. 1 and 2, the removable thermal protection module 400 is adapted to a three-pole module contactor, thus connecting land of three single-pole switching blocks 85. 45 includes three openings 401 that can be positioned by conforming to 45. As shown in FIG. 2, the removable thermal protection module 400 has specific features such as being incorporated into the module contactor 1 so as to be inserted between the switching block 100 and the connection terminal block 500. .

  The removable thermal protection module 400 according to the present invention has certain features such as no separate power supply means. According to a preferred embodiment of the present invention, the removable thermal protection module 400 is intended to automatically connect with the removable electrical control module 250 of the actuation block 200 for communication and power supply. Means 402 are included. In this way, these communication and power supply means 402 are suitable for supplying power to the removable thermal protection module 400 and for transmitting measurements made by current sensors. According to this embodiment of the present invention, the positioning of the removable electrical control module 250 on the casing of the actuation block 200 is based on the current sensor of the removable thermal protection module 400 and the removable electrical control module 250. It allows automatic connection and power supply to and from the current sensor.

  In accordance with a preferred embodiment of the present invention, the means for rapidly securing the actuation block 200 to the switching block 100 includes a first portion fixed to the movable keeper 202 of the actuation block 200, a switching A second portion fixed to the block 100.

  The rapid securing means includes at least one coupling hook 214 intended to secure and secure the switching block 100 to the actuation block 200.

  The coupling hook 214 is fixed to the movable keeper 202 of the electromagnetic actuator, and cooperates with the actuation device 34 of the movable contact 33 of the switching block 100 to transmit the movement of the movable keeper 202 to the movable contact 33. Suitable for working.

  Thus, according to the preferred embodiment of the present invention, the coupling hook 214 secures the actuation block 200 to the switching block 100 and the movement of the movable keeper 202 from the electromagnetic actuator is controlled by the switching block 100. The unit switching block 80 is intended to be transmitted to the movable contact bridge 33.

  The actuation device 34 of the movable contact 33 includes a movable contact holder 38 fixed to the movable contact 33. The movable contact holder 38 is connected to the attachment head 51. According to the embodiment of the present invention, the movable contact 33 is preferably slidably attached to the movable contact holder 38.

  Contrary to known solutions, the movable contact holder 38 forms an integral part of the unit switching block 80 and does not form part of the movable part of the electromagnetic actuator of the actuation block 200. Each unit switching block consequently includes a movable contact holder 38 fixed to the movable contact 33. As shown in FIG. 2, the switching block 100 of the module contactor 1 according to the present invention includes three unit switching blocks 80 each having a movable contact holder 38. As a result, each unit switching block has a function of being independent of other unit blocks.

  According to one embodiment, the coupling hook 214 has a suitable seat for transmitting the movement of the movable keeper 202 to the movable contacts from the closed position to the opened position and vice versa. An inner surface having a first edge and a second edge each including a face is included.

  Coupling hook 214 preferably has a C-shaped profile with two substantially parallel edges.

  The first edge of the coupling hook 214 includes a slot intended to receive the attachment head 51 secured to the contact holder 38. The first edge specifically moves the movable keeper 202 to the movable contact holder 38 of the movable contact 33 in the first direction of movement from the closed position of the movable keeper 202 to its open position. It includes a seating surface that is intended to communicate. The second edge, in particular, moves the movable keeper 202 to the movable contact holder 38 of the movable contact 33 in the second direction of movement of the movable keeper 202 from its open position to its closed position. It includes a seating surface that is intended to communicate.

  According to one development mode of the invention, the fixing means 210 includes a tray 211 that is intended to be fixed to the movable keeper 202. According to certain embodiments, the tray 211 includes counterbore on the first surface. A portion of the movable keeper 202 is intended to be positioned by countersinking the counterbore. The securing means 210 includes a removable clamping key 212 that passes through the counterbore wall and a portion of the movable keeper 202. As an exemplary embodiment, the counterbore shape of the tray 211 is substantially rectangular to accept a lateral keeper anchored to the outer branch of the U-shaped movable keeper of the movable keeper 202. The horizontal keeper includes a through hole that allows passage of the removable fixing key 212 when the movable keeper 202 is fixed to the tray 211.

  According to a particular embodiment, the tray 211 has three coupling hooks 214 intended to cooperate with the attachment head 51 of the movable contact holder 38 fixed to the movable contact 33 of the unit switching block 80, respectively. Contains. According to this particular embodiment of the invention, the three unit switching blocks 80 are consequently controlled in a synchronized manner by the actuation block 200 acting on the unit switching block. As described above, the unit switching block 80 may be controlled in a synchronized and simultaneous manner or in a synchronized and non-simultaneous manner. Each unit switching block 80 is connected to the actuation block 200 and controls the opening of the contacts 32 and 33 by translating the movable contact 33 in a direction perpendicular to the longitudinal axis X. The movable contact bridge 33 moves between the open position and the closed position of the electrical contacts.

  Contrary to the prior art solution, the adjustment of the opening of the different unit switching blocks 80 is made directly by the actuation block 200, in particular with an additional control axis, such as by a control axis connected to the unit switching block. Some means are not made directly. Thus, by virtue of the solution of the present invention, each unit switching block 80 can be removed directly from the base 110 of the fixed block 100 when the actuation block 200 is removed from the fixed block 100. This removal can be performed independently of the other unit switching blocks 80.

  The modular contactor 1 according to the invention thus comprises a rapid fixing means 210 that allows the actuation block 200 to be removably fixed to the switching block 100.

  According to a preferred embodiment, the coupling hook 214 includes play absorbing means suitable for eliminating the play required to mount the actuation block 200 on the switching block 100.

  The play absorbing means includes an elastic blade 213 positioned substantially parallel to the second edge of the coupling hook 214. The elastic blade 213 functions like a blade damper by deforming in the direction Z as soon as it comes into contact with the attachment head 51 connected to the movable contact holder 38 fixed to the movable contact 33. In other words, the play absorbing means are designed to avoid different relative movements of different parts during the electrical or mechanical procedure of the module contactor. In this way, the play absorbing means can achieve a high level of mechanical durability. According to a variant not shown, a single idle absorbing blade can be used, so that it can be common to all three unit switching blocks.

  As shown in FIG. 5A, according to one embodiment, the elastic blade 213 is positioned in the housing of the tray 211. The elastic blade 213 is preferably made of metal and is made by being bent. The blade includes a positioning snug that is intended to be placed inside a tray 211 to limit any movement of the blade.

  The elastic blade 213 has a dual function. On the one hand, the play between the tray 211 and the attachment head 51 can be recovered, and on the other hand, the play between the tray 211 and the movable keeper of the electromagnetic actuator can be recovered. The wave-like shape of the elastic blade 213 is based on the effect of placing the attachment head 51 on the axis of the movable assembly 220 and the snap-fitting sensation or the hard-point sensation that confirms that the installer has correctly combined the two parts. Has the effect of feeling.

  As shown in FIGS. 4, 5 and 6, according to one embodiment of the present invention, each movable bridge 33 of the unit switching block 80 is connected to the coupling hook 214 of the tray 211 of the movable keeper 202 of the electromagnetic actuator. It includes an attachment head 51 that is intended to be coupled. The attachment head 51 includes a seating surface intended to cooperate with the seating surfaces of the two edges of the C-shaped coupling hook 214. According to one particular embodiment, the attachment head is adapted to be positioned between the two edges of the coupling hook 214. The attachment head 51 is connected to the movable contact holder 38 by a transmission shaft 52. As a result, the transmission shaft 52 is positioned inside the slot at the first edge of the coupling hook 214.

  According to the preferred embodiment of the present invention, the position of the attachment head 51 can be adjusted according to the direction of movement of the movable contact bridge 33, in other words the direction perpendicular to the longitudinal axis X. This adjustment may optimize the contact compression stroke between the electrical contact area 37 of the two fixed contacts 32 and the contact area 36 of the movable contact 33.

  The movable contact bridge 33 of each unit switching block 80 is moved between the open position and the closed position of the electrical contact. Its purpose is to ensure that for a given travel, the electrical contacts are actually in the closed position. The travel stroke is set by the electromagnetic actuator of the actuation block 200.

  Depending on the manufacturing tolerance of the unit switching block 80, the separation distance from the fixed contact 32 to the movable contact bridge 33 at the contact open position may be different from one unit switching block 80 to another.

  In this way, the final position of the movable contact bridge 33 can be different for the same travel of the actuator of the actuation block 200. In a multipole contactor having a single actuator that controls many movable switching bridges 33 simultaneously, not all movable switching bridges may reach the same closed position. In other words, as an example, the other movable bridge 33 of the other unit switching block may already be in the closed position, while the movable switching bridge 33 of the unit switching block 80 may not be in the closed position as a whole.

  Setting the contact compression stroke consists of ensuring that the mechanical dimensions are maintained between the attachment head 51 and the casing 31 of the unit switching block 80 in the position of contact closure. More specifically, setting the contact compression stroke consists of ensuring that the dimensions are maintained between the seating surface of the attachment head 51 and the reference surface of the casing 31 of the unit switching block 80. Yes. This dimension is reproduced for all unit switching blocks of the same modular contactor 1 according to the invention.

  The compression stroke is set by using a transmission shaft 52 that connects the attachment head 51 to the movable contact holder 38. According to one embodiment of the present invention, the transmission shaft 52 has a variable length.

  According to a specific embodiment of the present invention, the transmission shaft 52 includes a first end fixed to the attachment head 51 and a second end including threading. Threading is intended to cooperate with tapping made on the movable contact holder 38 secured to the movable contact bridge 33. In effect, the attachment head 51 is moved relative to the casing of the unit switching block 80 by screwing the transmission shaft 52 into the movable contact holder 38.

  A typical embodiment of the attachment head 51 is provided with a cavity intended to cooperate with a setting tool (not shown). The setting tool is intended to be handled by a user who seeks to set the length of the transmission shaft 52. As shown in FIGS. 2 and 10A, the attachment head may include, for example, a dome-shaped contour at the head. As shown in FIG. 16, the attachment head may include a hexagonal outline, for example.

  A method for setting the compression stroke of the electrical contacts of the unit switching block 80 is to place the movable contact holder 38 in the closed position of the electrical contacts 32, 33. The contact compression stroke may also be referred to as wear guard. This function is generally performed manually before the casing 31 of the unit switching block 80 is attached to the base 111 of the switching block 110. The next step is to position the setting template 600 between the outer surface of the casing 31 and the seating surface of the attachment head 51. If the distance between the casing and the attachment head 51 is shorter than the thickness of the setting template 600 and the template cannot be positioned, the transmission shaft 52 is extended by loosening a screw, particularly with respect to the casing 31. Is done. On the other hand, when the distance between the casing 31 and the attachment head 51 is longer than the thickness of the setting template 600, the transmission shaft 52 is shortened by screwing into the casing 31 in particular. When the length of the transmission shaft 52 is set, the setting template 600 can be removed.

  As shown in FIGS. 6A and 6B, according to a particular embodiment of the setting method, the first step is to increase the maximum length of the transmission shaft 52, in particular by loosening the screw to the maximum. is there. As shown in FIGS. 7A and 7B, the second step is to position the setting template 600 between the seating surface of the attachment head 51 and the reference surface of the casing 31 of the unit switching block 80. In the third step, the movable contact holder 38 is brought into the closed position of the electrical contacts 32, 33 by screwing the transmission shaft 52. As shown in FIGS. 8A and 8B, the attachment head 51 is supported by the setting template 600 and the movable contact holder 38 is in the closed position. In the final step shown in FIGS. 9A and 9B, the setting template 600 is removed, and the movable contact holder 38 is positioned at the position where the electrical contacts 32 and 33 are opened.

  According to one embodiment of the present invention, the presence of the variable-length transmission shaft 52 in each unit switching block 80 is temporary in releasing the movable contact 33 of the same unit switching block as the module switching device according to the present invention. Can create offsets or synchronize.

  This time offset in the opening of the electrodes of the module switching device can reduce the contact wear at the opening of the three-phase product, especially with respect to the other two, with the opening of one pole proceeding deliberately.

  In practice, in three-phase switching there is always one electrode that switches before the other two. The other two poles block the network that has become single-phase following the first switching. The offset can thus ensure three-phase switching that always switches on to the same pole that can be synchronized to zero current. The opening of the other two poles is offset to reduce the maximum arc time of these two poles.

  This time offset in the opening of the module switching device's electrode may guarantee advancement or delay in a neutral opening for the phase for certain four phase applications.

  According to another embodiment of the setting method, this action can be performed simultaneously for all unit switching blocks 80 located on a single, 2-pole, 3-pole or 4-pole base. As a result, there are templates that are coupled in multiple poles and are in use. In this same embodiment, the time offset in the opening of one or more poles can be easily created by a template that incorporates the offset of the pole whose closure is to be advanced or delayed.

  In this way, by virtue of the rapid fixing means, the mounting and / or disassembly of the switching block 100 with respect to the actuation block 200 can be easily performed, for example, particularly to facilitate maintenance intervention at the switching block. .

  Furthermore, the reference positioning of the actuation block 200 with respect to the preset unit switching block of the switching block 100 ensures a greatly reduced tolerance of contact wear protection and can be guaranteed in the case of unit block replacement as part of a maintenance intervention. . Contact wear protection is also referred to as contact compression. This has the effect of guaranteeing a low tolerance for electrical endurance, at the same time, conserving contact materials (silver-based) and allowing less actuator consumption, regardless of the manufacturing tolerances of any industrial product. doing.

  As shown in FIG. 2, the module contactor 1 according to the invention comprises a connection terminal block 500 intended to be connected to a connection terminal 45 of the switching block.

  As shown in FIGS. 28A and 30B, according to certain embodiments of the present invention, the electrical switching device 1 includes an additional removable auxiliary contact block 700. These blocks have specific characteristics such as being removable.

  The removable auxiliary contact block 700 is controlled for opening by the actuating shaft 216 of the movable assembly 220 via the tray 211 moving in translation or by the multi-functional lever 205 moving in rotational movement. The movable contact support MCS is included.

  As shown in FIGS. 28A and 28B, according to an exemplary embodiment, the removable auxiliary contact block 700 is for indicating the open or closed state NO / NC of the electrical switching device 1. Further, the movable assembly 202 is controlled by translational movement. The additional block is mounted perpendicular to the location of the installation.

  As shown in FIGS. 29A and 29B, according to an exemplary embodiment, the removable auxiliary contact block 700 is controlled by the rotational movement of the multi-functional lever 205. The additional block is attached to the front of the installation position.

  As shown in FIGS. 30A and 30B, according to a variant, the multi-function lever 205 may provide the possibility to indicate the open state of the electrical switching device 1 via a flag-type specific shape. . This mechanical visualization of the position of the electrical switching device 1 can be made by the movement angle of the lever 205 including the flag 208.

  As shown in FIGS. 21 and 22, the present invention relates to a switching assembly 1000 including two module contactors 1, 2 as defined above. The module contactors 1, 2 of the switching assembly 1000 are arranged side by side so as to be attached by one of the main surfaces. Further, the two module contactors 1 and 2 are electrically connected. The switching assembly 1000 includes electrical conductors 301 that are respectively positioned inside the second cavities 130 of the two bases 110 of the two module contactors 1, 2. The conductor 301 that connects the electrode of the first module contactor 1 to the electrode of the second module contactor 2 includes a rigid conductor 301 or a semi-rigid conductor 301.

  According to a particular embodiment of the connection assembly, the internal volume of the second cavity 130 is suitable for connecting two module contacts 1, 2 in reverse switch mode, as shown in FIGS. Intended to accept a set of reverse bars 300. As shown in FIG. 22, the two contactors 1 and 2 that are set and connected by the set of the inversion bar 300 are three-pole type contactors. The set of bars 300 consequently includes six inversion bars 301 respectively connected to the two connection lands 45 of the two contactors. As shown in FIGS. 21 to 27, the conductors 301 of the switching assembly 1000 are arranged in two groups 300 each including three inversion bars 301. Advantageously, the conductors 301 of the same group 300 are fixed by clamps 302.

  Each connection opening 132 of the second cavity 130 that appears in the connection land 45 of the unit switching block 80 is passed by one of the inversion bars 301 of the set of inversion bars 300. In this way, each connection opening 132 allows passage and positioning of the reversal bar parallel to the connection land 45 so that an electrical connection can be made between the land and the bar. As shown in FIGS. 23 to 25, according to the first specific embodiment, the arrangement of the inversion bars 301 of the set of inversion bars 300 is performed through the outer surface of the base 110. After sliding the end of the reversal bar 301 into the connection opening 132, the set of bars 300 will rotate slightly and will be positioned inside the second cavity 130.

  According to a second specific embodiment (not shown), the arrangement of the reversing bars 301 in the set of reversing bars 300 is made directly through the side of the base 110. The set of inversion bars 300 is positioned in the slot of the second cavity 130 by sliding it into place. As a result, the end of the reversal bar 301 is directly attached to the connection land 45.

  The 3-pole reversing switch mode is particularly suitable for controlling an electric motor. According to a particular embodiment, the upstream connection land 45 of the first electrode of the first module contactor 1 is connected to the upstream connection land 45 of the first electrode of the second module contactor 2. . Furthermore, the downstream connection land 45 of the first electrode of the first module contactor 1 is connected to the downstream connection land 45 of the third electrode of the second module contactor 2. The upstream connection land 45 of the second electrode of the first module contactor 1 is connected to the upstream connection land 45 of the second electrode of the second module contactor 2. The downstream connection land 45 of the second electrode of the first module contactor 1 is connected to the downstream connection land 45 of the second electrode of the second module contactor 2. The upstream connection land 45 of the third electrode of the first module contactor 1 is connected to the upstream connection land 45 of the third electrode of the second module contactor 2. Finally, the downstream connection land 45 of the third electrode of the first module contactor 1 is connected to the downstream connection land 45 of the first electrode of the second module contactor 2.

  Furthermore, this embodiment can be applied to a 4-pole contactor (not shown) that is intended to invert the power supply.

  Thus, according to the connection mode in the reversing switch mode of two modular contactors according to the invention, the two sets of bars 300 are arranged inside the contactor. This innovative structure can not increase the overall volume of the electrical installation. This provides a significant advantage over prior art solutions where the equipment on the outside of the bar (FIG. 19) causes problems when wiring contactors in an electrical cabinet. In practice, the space inside these electrical cabinets is always limited.

  Furthermore, the structure of the set of inversion bars inside the module contactors 1, 2 according to the present invention is measured and thermally protected on one of the two module contactors 1, 2 as shown in FIGS. Module 400 may be incorporated.

  Incorporation of the removable thermal protection module 400 into one of the two contactors 1, 2 is not possible with known wiring, as shown in FIG. In practice, the user can wire two contactors arranged in a reversing switch type mode as shown in FIG. 19 by incorporating thermal protection (thermal relay) in one of the two contactors. If it is going to change, as shown in FIG. 20, a non-functional wiring is obtained. In fact, according to this unsatisfactory embodiment, when the motor is powered by the number 2 contactor, the thermal relay is no longer current flow and therefore cannot indicate the thermal state of the motor. .

  As shown in FIGS. 21 and 22, one of the module contactors 2 of the switching assembly 1000 does not include any removable thermal protection module 400. The module contactor 2 includes an actuation block 200 that is coupled to a switching block 100 that is not equipped with a removable thermal protection module 400.

  The present invention is specifically intended for electronically controlled contactor or starter type multi-pole switching devices. The simplified modular structure architecture of these instruments may also accept removable thermal protection and one or more switching blocks within the volume of the device. This basic design concept allows for easy and differentiated maintenance of various modular elements, whether electrical, electronic or electromechanical.

Claims (12)

An electrical switching assembly comprising a first modular electrical switching device (1) and a second modular electrical switching device (2),
The first module electrical switching device (1) and the second module electrical switching device (2) are arranged side by side so as to be electrically connected,
The first module electrical switching device (1) and the second module electrical switching device (2), respectively,
A switching block (100) comprising unit switching blocks (80) each having electrical switching means (30);
An actuation block (200) for said unit switching block (80) comprising an electromagnetic type actuator controlled by a control means;
The actuation block (200) is
An actuation module (230) incorporating the electromagnetic actuator;
A removable first electrical control module (250) and a second electrical control module (250), incorporating the control means and positioning the electrical control module (250) on the actuation module (230) A removable first electrical control module (250) and second electrical control module (250) comprising adaptive connection means intended to be interconnected with the actuation coil of the electromagnetic actuator when Including
The first electrical control module (250) or the second electrical control module (250) is selectively positioned on the actuation module (230);
The actuation coil comprises two control windings (203) each comprising a connection terminal (207);
The adaptive connection means of the first electrical control module (250) is connected to the connection terminal (207) and is configured to connect the two control windings (203) in series;
The adaptive connection means of the second electrical control module (250) is connected to the connection terminal (207) and is configured to connect the two control windings (203) in parallel;
The electrical switching assembly is positioned in a second cavity (130) of two bases (110) of the first module electrical switching device (1) and the second module electrical switching device (2), respectively. An electrical switching assembly comprising a conductor (301) . The adaptive connection means of the first electrical control module (250) is connected to the printed circuit board (PCB) of the removable electrical control module (250) so as to be connected in series to the two control windings (203). The electrical switching assembly of claim 1, including an electrical track that is directly integrated. The adaptive connection means of the second electrical control module (250) is connected to the printed circuit board (PCB) of the removable electrical control module (250) so as to be connected in parallel to the two control windings (203). The electrical switching assembly of claim 1, including an electrical track that is directly integrated. The first module electrical switching device (1) and the second module electrical switching device (2) may removably fix the actuation block (200) on the switching block (100) , respectively. Rapid fixing means including and including at least one coupling hook (214),
The coupling hook is
Fixing and fixing the switching block (100) to the actuation block (200);
-Intended to cooperate with an actuation device (34) of the movable contact (33) of the unit switching block (80) for transmitting movement of the electromagnetic actuator to the movable contact (33);
The electrical switching assembly according to any one of claims 1 to 3, wherein the coupling hook (214) is fixed to a movable keeper (202) of the electromagnetic actuator. The first module electrical switching device (1) and the second module electrical switching device (2) are respectively connected to a connection line (45) of the unit switching block (80) of the switching block (100) in a casing. A removable thermal protection module (400) including a current sensor intended to be positioned around
The electrical switching assembly according to any one of claims 1 to 4, wherein the casing is removable from the module switching device. The removable thermal protection module (400) is a communication and power supply means (402) intended to automatically connect with the first electrical control module (250) or the second electrical control module (250). The communication and power supply means are arranged to supply power to the removable thermal protection module (400) and to transmit measurements made by the current sensor. Item 6. The electrical switching assembly according to Item 5. The unit switching block (80) is configured to control the opening of the electrical block (32, 33) by moving the movable contact (33) of the unit switching block (80). Electric switching assembly according to any one of the preceding claims, characterized in that each is controlled in a synchronized manner by a movable keeper (202) of the electromagnetic actuator. The coupling hook (214) is suitable for transmitting the movement of the movable keeper (202) to the movable contact (33) from a closed position to an opened position and vice versa. 5. The electrical switching assembly of claim 4 including an inner surface having a first edge and a second edge, each including a smooth seating surface. The first edge of the inner surface of the coupling hook (214) includes a slot intended to receive an attachment head (51) of a movable contact holder (38), the first edge being Intended to transmit the movement of the movable keeper (202) to the movable contact holder (38) of the movable contact (33) in a first direction of movement from the closed position to the open position. 9. The electrical switching assembly of claim 8, including a seating surface. The second edge portion moves the movable keeper (202) in the second direction of movement from the open position to the closed position, the movable contact holder (33) of the movable contact (33). The electrical switching assembly of claim 9 including a seating surface intended to communicate to 38). The first module electrical switching device (1) and the second module electrical switching device (2) each comprise three unit switching blocks (80),
The actuation device (34) of the unit switching block is synchronized by the actuation block (200) to control the opening of the electrical contacts (32, 33) by moving the movable contact (33). 5. The electrical switching assembly of claim 4, wherein each is controlled in a controlled manner. The actuation block (200) includes a tray (211) fixed to the movable keeper (202), and the tray (211) is fixed to a movable contact (33) of a unit switching block (80). 12. Any of claims 4 and 7-11, characterized in that it has three coupling hooks (214) each intended to cooperate with the attachment head (51) of the snug (50) of the contact holder (38). An electrical switching assembly according to claim 1 .

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