Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
  • H01H71/08—Terminals; Connections
  • H01H71/082—Connections between juxtaposed circuit breakers
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
  • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
  • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
  • H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer

Definitions

• the present invention relates to the field of unitary modular electrical protection products such as switches, circuit breakers, differential blocks, switches and differential circuit breakers, etc.
• This known distribution function is generally performed by one or more rigid conductors connecting the upstream connection terminals of the electrical devices to the same potential. This or these conductors then extend in their quasi integrity outside the electrically connected devices, the devices being maintained on a rail called "modular rail" well known to those skilled in the art.
• Some product bundles are requested by customers for a faster and standardized installation of these devices in the electrical panel.
• each electrical appliance is disposed in a truncated housing and is connected to the removable block whose main function is to ensure the compatibility of the bridging step between products of an existing installation and the truncated products whose modular step stress does not need to to be respected.
• This configuration has several disadvantages.
• the volume available for the passage of these drivers is diminished or even almost non-existent.
• the passage of conductors of different potentials for example the passage of a phase conductor and a neutral conductor, imposes a specific distance in the air between the active parts of these conductors to avoid the short -circuit between these two conductor, which has the effect of increasing the volume necessary for their passage.
• the object of the invention is to solve this problem, namely in a group of modular devices such as circuit-breakers, differential switches, etc. How to distribute at least the same potential between input and / or output terminals of the devices constituents the grouping in the volume defined by the modular devices while ensuring the mechanical integrity of the block thus formed.
• an assembly comprising a row of at least two separate insulating housings each having two large parallel faces and each comprising at least one modular electrical appliance, for example of the type circuit breaker, switch, differential block , each of said electrical devices comprising at least one electrical connection terminal, characterized in that said assembly comprises at least one mechanical and electrical connection system mechanically connecting said housings between them while exerting a pressure force, substantially perpendicular to the two large faces parallels on two boxes in the row, and in that said system electrically connects the one or more terminal (s) of at least one electrical apparatus with the one or more terminal (s) of another electrical apparatus to distribute an electrical potential therebetween,
• This mechanical link between two housings of the row ensures the mechanical maintenance of all modular electrical devices assembled by the mechanical and electrical connection system into a mechanically stable assembly.
• a given electrical apparatus of the block thus formed can not be disassembled from said block in a simple operation.
• the assembly is mechanical in one component.
• the mechanical and electrical connection system integrates the fixing function into a set of different electrical devices to which it must distribute an electrical potential.
• the system is at least partly contained in the volume defined by the electrical devices in order to exceed as little as possible of the volume defined by the two devices and thus to allow the installer electrician to have more volume to the external devices with a conventional bridging system. This is possible because both functions, potential distribution and device attachment are included in the same mechanical and electrical connection system.
• the modular devices are "integers”, that is to say that they extend in the volume defined by the UTE C 61-920 standard. They are not truncated to allow the passage of any bridging system in their volume.
• this assembly comprises a row of at least two separate insulating housings is characterized in that said row comprises two end housings namely a first end housing at one end of the row and a second end housing to the other end of the row, said mechanical and electrical connection system mechanically connects said housings together by further exerting a pressing force, substantially perpendicular to the two large parallel faces on the end housings.
• the pressure force is exerted from the outside towards the inside in the set of housings of the row, this in order to ensure a better cohesion of the set of housings.
• the mechanical and electrical connection system is entirely contained in the volume defined by the housings. This is to allow the installer electrician to have a maximum volume outside the devices compared with a conventional bridging system.
• the assembly may contain auxiliary type electrical appliances which has only one electrical connection terminal.
• This type of device is in particular intended to communicate to the user information measured on the power line through their single electrical connection.
• This type of device may optionally not be provided with an electrical terminal, for example if it contains a non-contact current sensor type sensor.
• the assembly is characterized in that each of said electrical devices comprises at least one input electrical connection terminal and at least one electrical output connection terminal the mechanical and electrical connection system electrically connecting at least one connection terminal outputting at least one first electrical device to at least one input connection terminal of at least one other electrical device.
• the electrical connection terminal (s) are (are) in the form of an electrical connection terminal (s) and / or in the form of terminal (s) of electrical connection (s) output.
• one of the electrical devices is a differential type device, and is intended to be assembled with at least one switch-type device, circuit-breaker, etc.
• the assembly makes it possible to connect the electrical connection terminal electrically. output from the first device to the input electrical connection terminal the other device, or to the inputs of other devices.
• the power distribution scheme of the potential is in accordance with what the installation standards require and moreover the electrical and mechanical connection system allows the mechanical assembly of the different devices.
• the assembly is characterized in that the mechanical and electrical connection system electrically connects at least two input electrical connection terminals of at least two electrical devices.
• the at least two devices to be electrically connected are of the circuit-breaker, switch, etc. type, the assembly makes it possible to electrically connect the input connection terminals of the devices to each other at the same potential. So the electrical diagram of Potential distribution is in line with the requirements of the installation standards and furthermore the electrical and mechanical connection system allows the mechanical assembly of the different devices.
• the assembly is characterized in that the mechanical and electrical connection system comprises a transverse rod, each of the electrical connection terminals and / or electrical connection terminals for input and / or output of at least one electrical appliance. of the assembly comprising a connector internal to said enclosure (s), the rod being able to be connected to the electrical connectors inside the housings
• the distribution of the potential is done in the volume of the housings of the apparatuses and does not occupy space outside this volume. As a result, the electrician installer has a maximum space outside the assembly thus formed.
• the fact that this rod is transverse to the devices makes it possible to connect all the electrical devices concerned.
• the distribution of potential to each device is via an electrical connection to the transverse rod, preferably by connectors.
• This connection can also be achieved by brazing a conductor on the mechanical and electrical connection system and more particularly on the transverse rod or on a specific part thereof.
• the connector may also be brazed to the cross rod or to a specific portion thereof.
• the connector is fixed relative to the (x) said (s) housing (s), in order to allow better insertion of the rod in the connector.
• these connectors can also be movable relative to the said housing (s) if the rod-connector assembly requires a relative movement of the connector relative to the said housing (s).
• the assembly is also characterized by the fact that at least one of the connectors consists of a cylindrical-shaped conductive sleeve comprising at least one outwardly expansible zone under the action of the transverse rod. moment of insertion into the sleeve.
• said sleeve is also provided with an outer protrusion of radial appearance attached to an input or output terminal of one of the electrical apparatus, this protrusion facilitates the connection to the electrical circuit of the electrical apparatus to be connected to the transverse rod.
• each expansible zone is formed between two slots of axial shape formed in the peripheral wall of the sleeve.
• This embodiment makes it possible to optimize the length of each expansible zone, thus to optimize the quantity of material necessary for producing said sleeve.
• this slot is made from one end of the sleeve.
• one of the slots of axial shape is practiced until it opens at the other end of the sleeve, the outer protrusion being in one piece with one of the edges of said slot.
• This configuration allows the realization of the sleeve and the outer protrusion in a geometry that allows the flattening of these two parts of the system. This flattening is necessary for the manufacturability of the sleeve and the external protrusion in a single piece.
• the sleeve can be manufactured by winding around a core while being initially attached to the protrusion.
• the sleeve is reduced to its simplest expression of cylindrical tube or frustoconical shape and the outer projection is transferred to the input or output terminal to be connected to the sleeve.
• this terminal is directly linked to the sleeve.
• the expansible zone or zones are constituted in a portion of the frustoconical sleeve, which makes it possible to ensure electrical contact between the transverse rod and the expansible zones at the ends of the latter.
• the two axial ends of the sleeve are chamfered, this configuration facilitates the insertion or extraction of the transverse rod relative to the connector.
• the sleeves are each arranged in a barrel of plastic-type insulating material, the barrel forming part of one of the insulating housings, the expansible zones being in pressure on the inner wall of the barrel when the transverse rod is inserted therein, so that contact pressure between the rod and the ends of the sleeves is enhanced to obtain a better electrical contact between these two elements.
• the transverse rod comprises, at one end, a head provided with means for driving the rod in rotation, of the screw head type for example, said head bearing against a wall side of an insulating housing of the row, preferably one of the two end housings.
• This head has two functions, that is to say to allow a support on a side wall of a housing of the assembly and to allow the drive in rotation of the rod by drive means of the rod. rotation such as a slot or a rib perpendicular to the axis of the rod for example or by a screw-in or other means allowing this drive in rotation of the rod.
• the transverse rod comprises a threaded end portion, opposite to the location of the head, intended to be screwed into a thread located in a side wall of one of the insulating housings.
• the head of the transverse rod bears against a wall of a first end housing and the threaded portion of the rod is screwed into a thread located in a side wall of the other end housing.
• the thread is blind to prevent access from outside the assembly to a live part.
• the transverse rod can be mechanically fixed by screwing to one of the end housings and maintain a pressure force directed along said rod on the other end housing.
• all the housings constituting the assembly are held so that their large faces are contiguous.
• the transverse rod comprises a threaded end portion inside the rod, opposite to the head of the rod, said assembly further comprising a screw received in the threaded end portion, the screw pressing on a side wall of one of the insulators.
• the assembly of the assembly is equivalent to that described above.
• the head of the transverse rod is supported on a wall of a first end housing and the screw which is inserted into the threaded portion of the rod is supported on a side wall of the other end housing of all.
• the transverse rod can be mechanically fastened by screwing to one of the end housings to maintain a pressure force directed along said rod on the other end housing via the head of the rod.
• one of the electrical devices is a differential module comprising at least one electrical output connection terminal, at least one of the other electrical appliances being a circuit breaker comprising at least one input electrical connection terminal, the system mechanical and electrical connection connecting an output electrical connection terminal to at least one input electrical connection terminal.
• This configuration advantageously makes it possible to produce a one-piece apparatus of the differential circuit-breaker or differential switch type on the basis of two types of existing modules, the assembly and the mechanical maintenance of these modules between them being carried out by the mechanical and electrical connection system.
• system providing the distribution of a potential of the output of the differential type module to the input of at least one circuit breaker type module.
• This configuration advantageously makes it possible to arrange the mechanical and electrical connection system inside the volume occupied by the various modules constituting the assembly, thereby freeing the space outside the modules for the passage of other elements of the electrical installation in which the set is installed, such as cables for example.
• This configuration also allows easy industrialization of the assembly of these assemblies since the mechanical assembly and the distribution of the potential (electrical connection) are provided by the only mechanical and electrical connection system, and as this system is integrated into the volume of the housings , the size of the assembly is optimized, so the handling of assembled assemblies is facilitated.
• the assembly is characterized in that it comprises four electrical appliances for example of the circuit-breaker, switch, differential block type and in that one of the electrical appliances is a differential module comprising at least one electrical output connection terminal.
• the other three electrical appliances being circuit breakers each having at least one input electrical connection terminal, the mechanical and electrical connection system connecting at least one electrical output connection terminal to at least one input electrical connection terminal of each of the circuit breakers in order to distribute a potential between them.
• this configuration corresponds to a very common mounting case, thus the electrician fitter no longer has to individually wire the different devices between them, he simply installs the assembly directly into the electrical installation and thus gains precious time.
• the assembly comprises a differential module and three circuit breaker modules.
• the circuit breakers are of the phase-neutral type.
• only the neutral is distributed by the mechanical and electrical connection system.
• the assembly thus formed is characterized in that the electrical input terminals of the differential module extend over an entire face of the assembly, thus the electrician operator has all this surface in order to be able to connect the different inputs said differential apparatus to the electrical network.
• the input terminals being distributed over the entire surface, the maximum size of each driver to be connected is optimized.
• the two large parallel faces of at least two consecutive housings of the row consist of a room next to the two said consecutive housings of the row.
• the material gain achieved by the integration of these two faces in the same joint element allows an economic optimization of the whole.
• Figure 1 is a schematic view of an assembly according to one embodiment of the invention comprising a differential module and three neutral phase type circuit breaker modules.
• Figure 2 is a schematic view of an assembly according to one embodiment of the invention comprising a differential module and two neutral phase type circuit breaker modules.
• Figure 3 is a perspective view of a connector according to one embodiment of the invention.
• Figure 4 is a view in the axis of the connector according to one embodiment of the invention, the connector being connected to an input connection terminal (or output) of an electrical apparatus of the system.
• Fig. 5 is a perspective showing the arrangement between the connection terminals and the transverse rod in an assembly where the transverse rod distributes a potential to these three connection terminals.
• Fig. 6 is an enlarged view of Fig. 5 in which the transverse rod is inserted into the three connection terminals.
• Figure 7 shows an assembly according to an embodiment of the invention in perspective, a cover of one of the housings of the assembly being removed.
• Figure 8 is a section (not hatched) of the block of Figure 7 along the axis of the transverse rod along the plane of the front face of the assembly.
• Figure 9 is the same section as that of Figure 8 but hatched.
• Figure 10 is a cross section of the assembly of Figure 5.
• Figure 11 is a perspective view of the transverse rod according to another embodiment.
• Figure 12 is a partial perspective view of an assembly according to the invention.
• Figures 13 and 14 are partial perspective views of a detail of Figure 12.
• a set of housings comprising electrical appliances according to the invention is to protect goods and / or people for example.
• the electrical device, or the block thus formed is positioned upstream of a power line to protect.
• several types of faults can be detected and the line to be protected is then opened by the device.
• FIG. 1 shows a schematic view of a set of housings each comprising at least one electrical apparatus according to one embodiment of the invention.
• the assembly of FIG. 1 consists of a housing 1 comprising a differential device on the right in FIG. 1 and three housings 2, 2 ', 2 "each comprising a circuit breaker module (or each circuit-breaker type electrical equipment or modular circuit breaker) to the left of the differential module.
• each modular electrical appliance (or electrical appliance) is of parallelepipedal general appearance and is delimited by two large faces F1 and F2 for example for the differential apparatus 1.
• These housings form a row.
• the housing comprising the differential module 1 is positioned on the outside of the assembly, on the right in FIG. 1, and constitutes a first end housing of the assembly.
• this differential device comprises a differential measurement torus T and an actuator (capable of triggering the opening of adjacent devices in the event of a differential fault in the electrical installation to be protected)
• the phase-neutral type is contiguous to each other and to the housing of the differential module 1 by their large parallel faces
• the circuit-breakers D, D ', D "of FIG. 1 are of the phase-neutral magnetothermic type
• the housing D of the apparatus 2 At the left end of the row is the other end box of this row, which has input connections E and output connection terminals S.
• the block has the particularity to distribute the 3 input phases L1, L2, L3 after their passage in the differential module, and in particular through the torus T respectively to each of the three circuit breakers D, D ', D ". is distributed ap it passes through the differential module, in particular through the torus T at each of the three circuit breakers D, D ', D ".
• the neutral is distributed by a mechanical and electrical connection system SD between the output connection terminal of the differential device STN and the input connection terminal of each of the circuit breakers Em.
• the differential device comprises a set of four output connection terminals ST1, ST2, ST3, STN, one for each of the three phases L1, L2, L3 and one for the neutral N.
• This system thus realizes the distribution of the neutral potential between the terminal STN output connection connection of the differential apparatus 1 and the input connection terminals In circuit breakers D, D ', D "Moreover it comprises mechanical connection means (not shown) of the housings in a row in which their large faces are contiguous.
• the assembly is such that the input connection terminals E of the differential module extend over the entire surface of the product thus formed.
• FIG. 2 represents an assembly according to another embodiment of the invention similar to that of FIG. housings each having a circuit breaker type apparatus and a housing comprising a differential type apparatus.
• Another embodiment of the invention consists of an assembly comprising only housings each comprising a circuit-breaker type device such as those of FIG. 1.
• the input connection terminals E are directly connected to the input connection terminals of the circuit breakers
• the neutral N is distributed to the three circuit breakers by the mechanical and electrical connection system SD which comprises means for mechanical connection of the circuit breaker boxes in a row in which their large faces are contiguous.
• the circuit diagram of the assembly is equivalent to those described above, but the electrical and mechanical connection system distributed one of the Li to L3 phases and maintains contiguous on their large faces the different housings
• the term "distributing a phase between two electrical devices is equivalent to electrically connecting these two devices to the same potential.” All imaginable combinations are then possible, the electrical and mechanical connection system being able to distribute, the neutral and / or one or more phases.
• FIG. 3 shows a connector C according to an embodiment of the invention.
• This connector of the connection terminal is intended to be mechanically and electrically connected to a transverse rod 100 identical to those described in FIGS. 5 to 11, this transverse rod being intended to be plugged into the connector.
• This connector consists of two parts, one M generally cylindrical or sleeve intended to receive a transverse rod, the other P forming a radial growth of generally planar overall shape, folded leg or not, and intended to be electrically and / or mechanically connected to the input or output connection terminal of the electrical apparatus constituting the assembly.
• the arrow F indicates the insertion direction of the transverse rod in the sleeve.
• the sleeve consists of a sheet of conductive material, rolled on itself to form the peripheral wall of the generally cylindrical sleeve M.
• An end of this cylinder has an expandable zone formed, in this example, by 4 tabs 10 each constituted between two slots 11, 15 of axial shape formed in the peripheral wall of the sleeve, these tabs being bent towards the axis of the sleeve to ensure contact with the transverse rod when the latter is inserted into the sleeve M, in this example this portion of the sleeve preferably has a frustoconical general shape. Optionally (not shown) this shape can also be cylindrical.
• this expendable zone is preferably formed on the side where the transverse rod comes out of the sleeve during its insertion, in order to facilitate insertion of the transverse rod into the sleeve.
• a chamfer 12 which facilitates the positioning of the transverse rod relative to the axis of the sleeve during the insertion of the transverse rod in the latter.
• a chamfer 14 of the same type as the previous one can also be provided at the level of the expandable zones 10, in order to facilitate extraction of the transverse rod when the expandable zones are clamped on said rod.
• the sleeve comprises 4 tabs.
• This number of expandable tabs can vary from one, two to as many tabs as contact points needed to ensure a quality electrical contact between the sleeve and the rod.
• the axial slit 15 formed in the peripheral wall of the sleeve opens at both ends thereof, which makes it possible to ensure the manufacturability of the sleeve and the radial protrusion P in one piece.
• FIG. 4 shows the connector of FIG. 3 in a view along the axis of the sleeve M in the opposite direction of the arrow F.
• the connector is connected by the radial protrusion P to an input or output terminal 16 an electrical apparatus of the whole.
• This connection makes it possible to provide an electrical connection between the two elements, in order to ensure the distribution of the potential of the transverse rod to the electrical apparatus to be powered, as well as a mechanical connection between the connector C and the terminal 16 to ensure the holding C of the connector vis-à-vis the connection terminal at the time of insertion of the transverse rod in the sleeve M.
• This connection can be carried out conventionally by brazing with or without addition of material, by clinching or any other method assembly.
• FIG 5 there are three connectors each connected to a circuit breaker input terminal.
• the three connectors C1, C2, C3 are positioned as if they were assembled in the different housings of electrical equipment.
• the transverse rod 100 is in the inserted position in the connector C3 and being inserted in the connectors C2 and C1.
• the direction and direction of insertion are always symbolized by the arrow F.
• the transverse rod is equipped with a head 101 to one of his ends.
• the head 101 has a general shape of the disc perpendicular to the axis of the rod 100, this disc being equipped with a radial groove.
• the conductor 110 is shaped in this example to go into a measuring torus T (not shown in this figure) in a differential type device.
• the ends 111 and 112 of this conductor are respectively the input and output connection terminals of the differential module.
• the connection terminal 112 corresponds to one of the connection terminals STN of FIG. 1 and the connection terminal 111 corresponds to the connection terminal intended for the neutral N of FIG. 1.
• output connection 112 of the differential device is connected to the head 101 of the rod 100. This connection is provided by brazing, clinching or any other assembly method providing a mechanical and electrical connection between these two elements.
• the output terminal 112 of the differential apparatus is preferably connected to the radial rib of the head 101. This link can be made directly on the head 101 (not shown in this figure). A radial rib may also make it possible to block the rod 100 in rotation.
• the head 101 may also be provided with a screw head type imprint.
• the conductor 110 may be flexible or rigid.
• the other end of the rod 100 may be provided with an internal thread intended to receive the screw 102.
• the tightening of the screw 102 in the rod 100 is facilitated by the presence of the radial rib on the head 101 or by any other system allowing the locking in rotation or the rotational drive of the rod 100 during the tightening of the screw 102. in the rod 100.
• the two elements the rod 100 and the screw 102 ensuring the mechanical maintenance of the housings between the head 101 and the head of the screw 102.
• the electrical connection of the rod to the various devices being carried out via three connectors C1, C2, C3 and the head 101 of the rod 100. This connection could also be made by four connectors.
• Figure 6 shows the same embodiment as that of Figure 5, the rod 100 being inserted into the three connectors.
• Figure 10 is a cross section of the assembly of Figure 5 at the axis of the rod 100.
• the hole 103 is threaded to allow the assembly of the screw 102 in the rod 100.
• the rod 100 is in position inserted into the sleeves of connectors C1, C2, C3.
• FIG. 11 is a perspective view of a transverse rod
• the rod 100 is provided with an external thread 104 at one of its ends and the other end is provided with a head 101.
• thread 104 is intended to be screwed into a barrel of a first housing.
• This screwing is possible by the presence on the face of the head 101 opposite to the rod 100 of rotation drive means of the rod 100 as a thumbprint or a hollow groove or hollow groove like that of Figure 5
• the portion of the head 101 on the side of the rod 100 comes at the end of screwing bearing on a wall of a housing opposite to the first.
• the rod 100 allows the clamping of the housings between the two end housings.
• the conductor 110 is electrically connected to the rod 100 by the connection terminal 112.
• connection terminal 112 is in the form of a ring.
• the head 101 presses the ring of the terminal 112 against a wall of the housing opposite the first housing of this example and thus make electrical contact by pressure between the connection terminal 112 and the head 101, the rod 100 passing through the perforated portion of the ring.
• the means for fixing the rod to the housings or the different versions of the head of the rod 100 are permutable and are only non-limiting examples of the possible solutions for making these assemblies.
• FIG 7 is a perspective view of an electrical apparatus according to the wiring diagram of Figure 1.
• the outer cover of the differential housing being removed.
• An important aspect lies in the fact that normally such a set consisting of several housings is mechanically assembled via rivets, well known by the skilled person. These rivets are slid into the barrels 120 and crimped so as, on the one hand, to maintain each unit of electrical apparatus unit and on the other hand to hold together the housings of the assembly In this case the electrical distribution of a potential between the different devices must be done outside the volume occupied by the said boxes.
• the electrical and mechanical connection system according to the embodiment has the particularity of taking the place of one of these assembly rivets, in fact it does not collide with constituent elements of the various electrical modules.
• the system therefore takes over the assembly functions of the various electrical boxes constituting the assembly and it also has the particularity of allowing to distribute an electrical potential to each of the electrical devices. This potential distribution is achieved via the transverse rod and the various connectors C, Cl, C2, C3 present in each device.
• FIG. 7 clearly shows the head 101 which represents the end of the transverse rod housed in one of the assembly drums 120.
• the assembly consisting of three circuit breaker type apparatus and a differential apparatus whose housing is partially open, has four input connection terminals opening to the lower surface (inf) of said set. These four terminals constitute the four input terminals of the differential apparatus of the set according to the embodiment.
• each of these connection terminals has two possible connection points with an external conductor.
• the first of the four input connection terminals corresponding to the input E for the phase L1 of FIG. 1, has on the lower face of the block (Inf) a connection point El i intended to connect cables with the input connection terminal and a connection point El 2 for connecting rigid conductors of the comb type with the input terminal L1.
• each of the input connection terminals may have only one type of connection for cable or bridging comb or may be of the spring type and not screw, all the combinations being conceivable.
• the connection points El 1, E21, E31, E41 regularly extend spaced over the entire bottom surface inf of said block.
• the electrician operator has all this surface in order to connect the different input connection terminals of said differential device to the power grid.
• the input connection terminals being distributed over this entire surface, the maximum size of each driver to be connected is optimized.
• each sleeve M may be preferentially positioned in a barrel F in plastic insulating materials.
• This barrel has in this embodiment a generally cylindrical hollow shape.
• the mechanical connection system is formed by the screw 102, the rod 100 in combination with parts of the housings of the electrical apparatus constituting said assembly.
• the row of boxes comprises two end boxes, a first on the left of Figure 8 and a second on the right of the same figure, the opposite of the first.
• the screw 102 screwed into the rod 100 bears on a wall 120 of the housing located on the left in FIG. 8, the other end of the rod 100 has a head 101 which bears on a wall 121 of the housing situated on the right in Figure 8 and opposite the first housing cited.
• the pressure generated by this assembly makes it possible to clamp together all the housings between the two end housings in a row in which their large faces are contiguous.
• two adjacent electrical devices for example the two circuit breakers contained in the housings 2 and 2 ', are separated by a joint piece (Int).
• This middle piece comprises the large parallel faces consecutive and opposite these two housings 2 and 2 'in the row of the assembly.
• the adjoining room Int can also be positioned between the housings 2 'and 2 ", again the two large parallel faces of these two appliances are integrated in this adjoining room, between the housings 2" and 1 the terraced room will be slightly different from the one used previously because on one side it is in connection with a circuit breaker type device and the other with a differential type device. Nevertheless it incorporates the large consecutive parallel faces of the two housings 2 "and 1 placed in the assembly of FIG. 7.
• FIG. 12 represents a partial perspective view of an assembly according to an embodiment of the invention according to an angle of view which makes it possible to see the head of the screw 102.
• This screw is accessible through a cylindrical hole 105 opening into a side wall of one of the housings of the assembly.
• This hole makes it possible, during the assembly of the mechanical and electrical connection system according to the embodiment, to access the head of the screw 102, in order to screw the screw 102 onto the rod 100.
• the hole cylindrical 105 ends with a counterbore which allows a support of the head of the screw 102 on an end housing of the assembly.
• the assembly of the screw 102 in the rod 100 makes it possible to fix together the various housings forming the row together.
• the screw 102 Since the screw 102 is in contact with the rod 100 which distributes an electric potential, it is itself at the same electrical potential as that of the rod 100. As the hole 105 opens out onto an outer wall of a housing of the assembly, the head of the screw 102 is accessible to a user and presents a risk of electric shock when the devices of the set are in use.
• One possible solution is to offset the countersink from the bottom of the hole 105 so that the head of the screw is no longer accessible by the finger of the user. In this case the head of the screw 102 remains visible to the user and is protected. Another option is that shown in FIGS. 13 and 14.
• the hole 105 is surrounded by a surface 106 parallel to the face of the housing and offset from the latter so as to allow the insertion of a shutter 107.
• the surface 106 is set back relative to the lateral face of the housing, once in place the shutter 107 is flush with the lateral surface of the housing and is thus almost invisible and does not affect the size of the row of housings as can be seen in Figure 14.
• the shutter has a rectangular shape, the shape of the shutter has no influence on its function from the moment its surface covers the opening hole 105.

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• 2015
  • 2015-07-31 FR FR1557439A patent/FR3039698B1/fr not_active Expired - Fee Related
• 2016
  • 2016-07-28 WO PCT/FR2016/051957 patent/WO2017021623A1/fr active Application Filing
  • 2016-07-28 EP EP16756726.2A patent/EP3300530B1/de active Active
  • 2016-07-28 CN CN201680043787.7A patent/CN107924793B/zh active Active

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