Current distribution system and power supply assembly comprising such distribution system

Abstract

The invention relates to a current distribution system (10) comprising a cable conduit (11) comprising a first edge (14) and a second edge (15), each edge comprising a fixing recess (19), a plurality of busbars (25) and a junction box (40). The retaining device (30) comprises a support (32) comprising first and second latches (38, 39) cooperating with the fixing notches of the first edge and the fixing notches of the second edge (15), respectively, and a mating support (34) elastically deforming the first latches (38) and the second latches, and a cover (47) covering the cable conduit, the bus bar and the retaining device. The junction box (40) includes a base plate (42) having a first tooth (48) and a second tooth (49), the base plate being secured to the cable conduit by the form-fitting cooperation of the first tooth with the first edge and the second tooth with the second edge.

Description

Technical Field

[0001] The present invention relates to a current distribution system and a power supply assembly comprising such a current distribution system. Background Art

[0002] In order to distribute the current to the electrical loads, it is known to use cables, in particular using a star arrangement from a power source. This solution requires one cable per electrical load, which in turn requires many cables, making the installation cost high. It is also known to use power busbars, usually fixed to a wall in a building, to which branch outlets are connected in order to connect the loads to the current source. However, power busbars usually have a predetermined length and are difficult to adapt to different situations. They are also difficult to install. Summary of the invention

[0003] The object of the present invention is therefore to propose a current distribution system which solves these drawbacks and which is adaptable and easy to install.

[0004] To this end, the object of the present invention is to provide a current distribution system, comprising:

[0005] - a cable duct fixable to a supporting surface, which extends according to a longitudinal direction, the cable duct comprising a bottom, a first edge and a second edge, the first and second edges extending on either side of the bottom according to a transverse direction, and each edge comprising a fixing notch;

[0006] a plurality of busbars extending at least partially into the cable duct according to a longitudinal direction, each busbar comprising a core of an electrically conductive material configured to conduct electric current, and a sheath surrounding the core, the sheath being electrically insulating; and

[0007] - Junction box.

[0008] According to the present invention, the dispensing system further comprises:

[0009] - Holding device, comprising:

[0010] o a support extending according to a transverse direction, the support comprising notches each receiving a busbar, a first latch and a second latch cooperating with a fixing notch of the first edge and a fixing notch of the second edge, respectively,

[0011] o a counter support member that abuts against the support member according to the thickness direction, the counter support member elastically deforming the first latch and the second latch so as to keep the first latch and the second latch engaged with the fixing notch of the first edge and the fixing notch of the second edge, respectively,

[0012] - A cover which clips onto the cable duct and covers the cable duct, busbars and retaining devices.

[0013] According to the present invention, the junction box further comprises:

[0014] o a base plate comprising a first plate and a second plate comprising a plurality of first teeth and a plurality of second teeth, respectively, the base plate being secured to the cable duct by form-fitting cooperation of the first teeth with the first edge and the second teeth with the second edge of the cable duct, the base plate defining channels, each channel receiving a busbar;

[0015] oBranch outlets, each branch outlet is connected to one of the busbars,

[0016] oElectrical protection device connected to at least one branch outlet,

[0017] o an intermediate housing fixed to the base plate and surrounding the base plate, the branch outlet and the electrical protection device, the intermediate housing abutting against the first plate and the second plate, the intermediate housing retaining the first and second teeth in engagement with the first edge and the second edge, respectively, and

[0018] oExternal face, which is fixed to the intermediate casing and covers the branch line outlet and the electrical protection devices.

[0019] Thanks to the invention, the current supply system is adaptable to various wall geometries. It is also very easy to install. In fact, the holding means used allow the busbars to remain in place while still being easy to install. The terminal boxes are also easy to install thanks to the base plate and the intermediate housing that holds the base plate to the cable duct. The number of terminal boxes can be modified depending on the application of the current supply system, such as the number of loads or the supplied bus power.

[0020] According to other advantageous aspects of the invention, the current distribution system comprises one or more of the following features, alone or in any technically possible combination:

[0021] The junction box further comprises two sealing devices, which are arranged on either side of the branch outlet and the electrical protection device according to the longitudinal direction, and each sealing device comprises:

[0022] a gasket extending according to a transverse direction, housed in the base plate, the gasket comprising recesses each receiving one of the busbars; and

[0023] - a counter-washer extending according to a transverse direction with the generatrix interposed between the washer and the counter-washer, the counter-washer being flush with the first and second plates.

[0024] The system also includes a power supply box, which includes:

[0025] - a base plate comprising a first plate and a second plate, the first plate and the second plate comprising a plurality of first teeth and a plurality of second teeth, respectively, the base plate being fixed to the cable duct by form-fitting cooperation of the first teeth with the first edge and the second teeth with the second edge, the base plate defining channels, each channel receiving one of the busbars,

[0026] - a disconnector switch connected between the supply cable and the busbar, the supply cable being able to be connected to the power supply;

[0027] an intermediate housing fixed to the base plate and surrounding the base plate and the disconnector, the intermediate housing comprising an opening for allowing the passage of the power supply cable, the intermediate housing abutting against the first and second plates so as to keep the first and second teeth engaged with the first edge and the second edge respectively; and

[0028] - An external face, which is fixed to the intermediate casing and covers the disconnector.

[0029] - the busbars each comprise an upstream portion and a downstream portion, each upstream portion comprising a first end exposing the core, each downstream portion comprising a second end exposing the core, the second end being adjacent to the first end in the thickness direction (Z), the system further comprising:

[0030] - Junction box, including:

[0031] o connectors, each of which connects a first end and a second end to each other for a given one of the busbars,

[0032] o a substrate surrounding the first and second ends and the connector, the substrate comprising a first plate and a second plate, the first plate and the second plate comprising a plurality of first teeth and a plurality of second teeth, respectively, the substrate being secured to the cable duct by form-fitting cooperation of the first teeth with the first edge and the second teeth with the second edge of the cable duct, the substrate defining channels, each channel receiving an upstream portion and a downstream portion of one of the busbars; and

[0033] An external face fixed to the substrate and covering the connector and the first and second ends of the upstream and downstream portions of each busbar.

[0034] - The junction box further comprises a measuring device configured to measure the power consumption.

[0035] - The system comprises five busbars, the busbars being configured to respectively conduct a first phase, a second phase, a third phase, a neutral and a reference potential.

[0036] - The system comprises a plurality of retaining devices distributed according to the longitudinal direction.

[0037] The present invention also relates to a power supply assembly, comprising:

[0038] - A system according to any one of the preceding claims;

[0039] - at least one power supply terminal connected to the electrical protection device, configured to supply power to an electrical load when connected to the power supply terminal by a user.

[0040] According to further advantageous aspects of the invention, the power supply assembly comprises one or more of the following features, alone or in any technically possible combination:

[0041] - The power supply assembly further comprises a communication cable connecting the power supply terminal to the electronic control unit, and the support comprises a recess for receiving the communication cable.

[0042] -The electrical load is the battery of an electric vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The invention will become more apparent on reading the following description, given by way of non-limiting example only, and with reference to the accompanying drawings, in which:

[0044] - Figure 1 is a perspective view of a power supply assembly according to the invention incorporating a current distribution system also according to the invention;

[0045] - Figure 2 yes Figure 1 A partial perspective view of the exterior of a current distribution system;

[0046] - Figure 3 yes Figure 1 and Figure 2 A partial perspective view of a current distribution system of FIG. 1 with some elements omitted to allow other elements of the current distribution system to be seen;

[0047] - Figure 4 yes Figures 1 to 3 A partial perspective view of a current distribution system of FIG. 1 showing cable ducts, base plates and supports;

[0048] - Figure 5 is based on Figure 3 The cross-sectional plane VV Figure 2 A cross-sectional view of the system in FIG. 1 ; and

[0049] - Figure 6 is based on Figure 3 Section plane VI-VI Figure 2 A cross-sectional view of the system. DETAILED DESCRIPTION

[0050] Figure 1 An overall view of the power supply assembly 1 is shown. Figure 1 In the embodiment, the power supply assembly 1 equips a parking lot for electric vehicles and includes a plurality of power supply terminals 5 and a current distribution system 10 , also referred to as system 10 .

[0051] Each power terminal 5 is configured to be connected to an electric load, such as an electric vehicle battery 7 , and is also configured to supply current to the electric load when the electric load is connected to the power terminal 5 .

[0052] The current distribution system 10 is configured to connect a current source (not shown) to the power supply terminal 5 so as to supply power to the power supply terminal 5. Here, the current distribution system 10 is installed in a parking lot, more precisely fixed to one of the walls 8 of the parking lot, but more generally fixed to a supporting surface, which is for example a wall, a floor or a ceiling.

[0053] In an alternative that is not shown, the dispensing system 10 is installed outdoors.

[0054] In an alternative not shown, the power supply assembly 1 is installed in a building, for example to supply current to household appliances, sockets, lighting equipment or servers. In this case, the current supply assembly does not include power terminals, and the current distribution system 10 is directly connected to the electrical load.

[0055] The current distribution system 10 comprises a cable duct 11, a plurality of busbars 25, at least one holding assembly 30, a terminal box 40 and a cover 47. In the figures, the current distribution system 10 comprises a plurality of holding assemblies 30 and a plurality of terminal boxes 40. The cable duct 11 is formed by a plurality of sections of the same type and of different lengths, which are adapted to the geometry of the wall 8 and the presence of any obstacles, such as pipes 9.

[0056] exist Figures 3 to 6 The cable duct 11 can be seen in FIG. The cable duct 11 extends according to a longitudinal direction X and is fixed to the wall 8. The transverse direction Y and the thickness direction Z are defined to be perpendicular to the longitudinal direction X at any point in the longitudinal direction X. The longitudinal direction X is a local direction of the cable duct 11 which follows the shape of the wall 8. In the assembled configuration of the cable duct 11 on the wall 8, the transverse direction Y points upwards and the thickness direction Z is perpendicular to the wall 8 and away from the wall 8.

[0057] In this case, the sections constituting the cable duct 11 are sheets 12 assembled end to end according to the longitudinal direction X. The sheets 12 may be spaced apart according to the longitudinal direction X to adapt to the geometry of the wall 8, in particular in the case of irregularities of the wall 8, caused, for example, by obstacles such as the duct 9. The sheets 12 are advantageously made of metal, but may also be made of another material, for example plastic.

[0058] Each sheet 12 comprises a bottom 13, a first inner edge 14 and a second inner edge 15. When the cable duct 11 is mounted on the wall 8, the first inner edge 14 is the upper edge of the sheet 12 and the second inner edge 15 is the lower edge of the sheet. The bottom 13 extends according to a longitudinal direction X. The bottom 13 is fixed to the wall 8, for example by screwing it to the wall 8 by screws not shown.

[0059] The first inner edge 14 and the second inner edge 15 extend according to the longitudinal direction X and according to the thickness direction Z and are arranged on either side of the bottom 13 according to the transverse direction Y. The first inner edge 14 and the second inner edge 15 comprise a first lip or upper outer lip 16 and a second lip or lower outer lip 17, respectively. The first and second lips 16 and 17 are curved and extend from the remaining part of the first inner edge 14 and the remaining part of the second inner edge 15, respectively, opposite the bottom 13 and in a direction opposite to the thickness direction Z.

[0060] The first and second edges 14 and 15, respectively the upper and lower part, each comprise a fixing notch 19. The fixing notch 19 of the first edge 14 is barely visible in the figure, but in the example of the figure is symmetrical with the fixing notch 19 of the second inner edge 15 with respect to a plane parallel to the directions X and Z. Advantageously, the fixing notches 19 are evenly spaced according to the longitudinal direction X and the fixing notches 19 of the first inner edge 14 face the fixing notches 19 of the second inner edge 15 according to the transverse direction Y.

[0061] Advantageously, there are five busbars 25. In this case, the first busbar 25 is configured to conduct the first phase, the second busbar 25 is configured to conduct the second phase, the third busbar 25 is configured to conduct the third phase, the fourth busbar 25 is configured to correspond to neutral and the fifth busbar 25 is configured to correspond to a potential reference, also called ground. In an alternative not shown, there are two, three or four busbars 25. In the case of two busbars 25, the first busbar 25 is configured to conduct the first phase and the second busbar 25 is configured to correspond to neutral. In the case of three busbars 25, the first busbar 25 is configured to conduct the first phase, the second busbar 25 is configured to correspond to neutral and the third busbar 25 is configured to correspond to ground. In the case of four busbars 25, three busbars 25 are configured to each conduct a phase and the fourth busbar 25 is configured to correspond to ground or neutral.

[0062] Particularly advantageously, the busbars 25 are flexible busbars, in other words they adapt to the geometry of the supporting surface. Figure 1 8, where the busbars adapt to the corners of the wall 8 and the pipes 9. Preferably, the busbars 25 are flexible enough to be bent by hand.

[0063] Each busbar 25 comprises a core 26 of an electrically conductive material, such as copper. The core 26 is thus configured to conduct an electric current. In the case where the busbar 25 is a flexible rod, the core 26 of each busbar 25 is advantageously a stack of sheets of electrically conductive material. The core 26 is surrounded by a sheath 27 of electrically insulating material, such as a synthetic material such as plastic. Thus, the cross section of the busbar 25 according to the plane defined by the transverse direction Y and the thickness direction Z is longer according to the transverse direction Y than the thickness direction Z. Thus, the busbar 25 is flattened according to the thickness direction Z.

[0064] Each busbar 25 extends at least partially into the cable duct 11 according to the longitudinal direction X. The busbars 25 are arranged adjacent to and at a distance from each other according to the transverse direction Y. The busbars 25 are therefore parallel to the supporting surface, in this case the wall 8 .

[0065] Each busbar 25 is divided into sectors aligned according to a longitudinal direction X. Each sector comprises an upstream portion 25a and a downstream portion 25b. The upstream portion 25a of a given sector is further upstream according to the longitudinal direction X with respect to the source than the downstream portion 25b of the sector.

[0066] Each upstream portion 25a includes a first end 28a at which the core 26 is exposed. Similarly, each downstream portion 25b includes a second end 28b at which the core 26 is exposed. The second end 28b of the downstream portion 25b of a given segment and the first end 28a of the upstream portion 25a of the next segment according to the longitudinal direction X overlap according to the thickness direction Z to form a junction 28 so that current flows along the busbar 25 between its segments.

[0067] In fact, according to an advantageous aspect of the invention, the joining zones 28 of different busbars 25 are aligned according to the transverse direction Y.

[0068] In order to hold the busbar 25 in the cable duct 11, the current distribution system 10 comprises at least one holding device 30, usually a plurality of holding devices 30 distributed throughout the cable duct 11, such as Figures 3 to 5 shown.

[0069] Each holding device 30 comprises a support 32 and a counter-support 34. The support 32 of the various holding devices 30 is preferably identical, as is the counter-support 34.

[0070] The support 32 extends according to a transverse direction Y and abuts against the bottom 13 according to a thickness direction Z. The support 32 comprises notches 36, in this case five notches 36. Each notch 36 is configured to receive a busbar 25 and prevent the busbar 25 from moving according to the transverse direction Y or according to a direction opposite to the transverse direction Y. Advantageously, and as also shown in the figures, in particular Figure 5 In the embodiment, the support member 32 further comprises two notches 37, each notch 37 being used to receive a communication cable (not shown), such as an Ethernet cable.

[0071] Each support 32 further comprises a first latch 38 and a second latch 39. In the mounted configuration of the distribution system 1, the first and second latches 38 and 39 are respectively an upper latch and a lower latch. The first latch 38 cooperates with one of the fixing recesses 19 of the first inner edge 14 via a first lug 42, which passes through the fixing recess 19 of the first inner edge 14. The second latch 39 cooperates with one of the fixing recesses 19 of the second inner edge 15, in particular the fixing recess 19 of the second inner edge 15 facing according to the transverse direction Y of the fixing recess 19 of the first inner edge 14. This cooperation is achieved by a second lug 43 passing through the fixing recess 19 of the lower edge 15. In the mounted configuration of the power supply assembly 1, the first and second lugs 42 and 43 are respectively an upper lug and a lower lug.

[0072] The counter-support 34 extends according to the transverse direction Y and abuts against the support 32 according to the thickness direction Z, for example by being screwed to the support 32. The counter-support 34 closes the recess 36 and prevents the busbar 25 from moving according to the thickness direction Z. Furthermore, the counter-support 34 abuts against the first and second latches 38 and 39 and elastically deforms them so as to press them against the first inner edge 14 and the second inner edge 15, respectively, and cooperate with the fixing recess 19 of the first inner edge 14 to hold the first lug 42 and with the fixing recess 19 of the second inner edge 15 to hold the second lug 43. Thus, the retaining device 30 is fixed to the cable duct 12 without the need to screw the support 32 to the cable duct 12 or the wall 8.

[0073] Thus, the retaining devices 30 prevent the busbars 25 from moving. In particular, in the event of an electrical fault such as a short circuit, a repulsive force, referred to as an electromagnetic force, proportional to the current flowing through the busbars is exerted between the busbars 25, tending to pull them apart. The number of retaining devices 30 in the system 10 is advantageously determined as a function of the current flowing through the busbars 25 and the maximum repulsive force that the retaining devices 30 must withstand in the event of a short circuit. In particular, the addition of retaining devices 30 allows the distance between two consecutive devices 30 to be reduced, allowing the number of retaining devices 30 to be adjusted according to the electromagnetic forces to be withstood. In addition, the shape of the busbars 25, which is flattened according to the thickness direction Z, reduces the surface of the busbars 25 relative to each other, which limits the electromagnetic forces exerted on the busbars 25.

[0074] The presence of fixing notches 19 evenly spaced along the first and second edges 14 and 15 according to the longitudinal direction X allows fixing and retaining supports 30 where necessary to withstand electromagnetic forces and to easily adapt the number and position of supports 30 .

[0075] The cover 47 is made of an electrically insulating material, such as a synthetic material such as plastic or metal, and covers the cable duct 11 according to the longitudinal direction X. Particularly advantageously, the cover 47 is composed of a plurality of sections 47a of the cover 47, each section 47a covering one sheet 12 and the busbars 25 and the retaining device 30 mounted on the sheet 12. Each section 47a comprises an upper elastic hook 146 and a lower elastic hook 147. The upper elastic hook 146 abuts against the first lip 16, and the lower elastic hook 147 abuts against the second lip 17. Therefore, the section 47a is held in the thickness direction Z by the elastic hooks 146 and 147. Therefore, the cover 47 is clamped on the cable duct 11 without the need for additional fixings such as screws to fix the cover 47 to the cable duct 11.

[0076] Each junction box 40 is configured to connect the busbar 25 to one of the power terminals 5. Each junction box 40 is installed at the connection area 28 of the busbar 25.

[0077] Each terminal box 40 comprises a base plate 42. Advantageously, the base plate 42 is made of an electrically insulating material, for example a synthetic material such as plastic.

[0078] The base plate 42 is fixed to the cable duct 11, more precisely to one of the sheets 12. The base plate 42 rests against the bottom 13 of the sheet 12 according to the thickness direction Z. The base plate 42 comprises a first plate 44 and a second plate 45 extending along the base plate 42 according to the longitudinal direction X and located on either side of the rest of the base plate 42 according to the transverse direction Y. The first plate 44 rests against the first inner edge 14 and the second plate 45 against the second inner edge 15. In the installed configuration of the distribution system 1, the first and second plates 44 and 45 are respectively the upper plate and the lower plate. The plates 44 and 45 are fixed to the edges 14 and 15 and allow the base plate 42 to be installed anywhere on the cable duct 11.

[0079] The first plate 44 includes a plurality of first teeth 48, and the second plate 45 includes a plurality of second teeth 49. Figure 6 The first teeth 48 and the second teeth 49 abut against the first lip 16 and the second lip 17 in the thickness direction Z, respectively. The first teeth 48 and the second teeth 49 hold the substrate 42 and prevent the substrate 42 from being separated from the sheet 12 by the shape cooperation of the first teeth 48 and the second teeth 49 with the first lip 16 and the second lip 17, respectively. In the installed configuration of the dispensing system 1, the first and second teeth 48 and 49 are upper teeth and lower teeth, respectively.

[0080] The base plate 42 defines channels 51 extending according to a longitudinal direction X, here five channels 51, each receiving one of the busbars 25. The base plate 42 also defines additional channels 53, here arranged on either side of the channels 51 according to a transverse direction Y, each receiving one of the communication cables.

[0081] Each terminal box 40 also includes two sealing devices 60 housed in the base plate 42. Each sealing device 60 extends from the lower plate 45 to the first plate 44 according to the transverse direction Y and includes Figure 4 The washers 62 and Figure 3 The mating gasket 63 is visible in FIG.

[0082] The gasket 62 is housed in the base plate 42 and comprises notches 65 each receiving one of the busbars 25. As also shown in the figures, the gasket 62 comprises two additional notches 67, located on either side of the notches 65 according to the transverse direction Y, each receiving one of the communication cables.

[0083] The counter-gasket 63 extends according to the transverse direction Y and abuts against the gasket 62 in the thickness direction Z. The counter-gasket 63 advantageously comprises recesses 69 and 71, similar to the recesses 65 and 67, for receiving the busbar 25 and the communication cable, respectively. The busbar 25 is interposed between the gasket 62 and the counter-gasket 63 in the thickness direction Z. Thus, the gasket 62 and the counter-gasket 63 assume the shape of the busbar 25. Furthermore, the counter-gasket 63 is flush with the first plate 44 and the second plate 45 in the thickness direction Z. Thus, the sealing device 60 ensures that the base 40 is sealed at both ends according to the longitudinal direction X.

[0084] like Figure 3 and 6 As shown, the terminal box 40 further includes branch line outlets 70. Each branch line outlet 70 includes a tongue 72 made of a conductive material such as copper, and the tongue 72 contacts the first and second ends 28a and 28b of one of the busbars 25.

[0085] The first and second ends 28 a and 28 b abut against each other according to the thickness direction Z, and the tongue portion 72 abuts against the first end 28 a in the thickness direction Z.

[0086] The terminal box 40 includes connectors 75, each of which holds the first and second ends 28a, 28b of the busbar 25 and the tongue 72 of the associated branch outlet 70 against each other and electrically connects each other. Each connector 75 is a bolt here, including a threaded rod 76 and a nut 77 fixed to the base plate 42. The threaded rod 76 is fixed to the base plate 42 so as to keep the threaded rod 76 fixed and facilitate tightening the nut 77.

[0087] The junction box 40 includes at least one electrical protection device 80, such as Figure 3 and 6As shown, it is connected to at least one branch outlet 70. Here, the electrical protection device 80 is connected to two branch outlets 70. Particularly advantageously, the electrical protection device 80 is connected to one of the busbars 25 corresponding to one of the three phases and to the busbar 25 corresponding to neutral on the input side through a cable 83, and is connected to one of the power supply terminals 5 on the output side. The electrical protection device 80 includes a miniature circuit breaker and, optionally, a circuit breaker for differential protection.

[0088] Optionally, but particularly advantageously, the terminal box 40 also comprises a power consumption measuring device 85 connected between the electrical protection device 80 and the cable 83 .

[0089] The measuring devices 85 are configured to measure the power or current consumed by the load, for example, when the load is connected to the power supply terminal 5. Each measuring device 85 is advantageously connected in series to two communication cables and is configured to transmit data related to the instantaneous or average power consumption to an electronic control unit (not shown). Advantageously, the electronic control unit is able to process the data and display it to the user and, particularly advantageously, is able to adjust the power of the current flowing in the current distribution system 10 according to the received data.

[0090] In the case where the terminal box 40 does not comprise the measuring device 85 , a communication cable is advantageously connected to each power supply terminal 5 and to the electronic control unit.

[0091] like Figure 3 As shown, the electrical protection device 80 and the measuring device are mounted on a mounting rail 88 , and the mounting rail 88 is fixed to the base plate 42 by screws 89 .

[0092] The cable 83 connecting the measuring device 85 to the power supply terminal via the protection device 80 advantageously extends to the power supply terminal 5 in the sheath 84. Thus, part of the current flowing through the busbar 25 is transferred from the power supply busbar 25 to the power supply terminal 5. The electrical protection device 80 allows the cable 83 connected to the power supply terminal 5 to be protected.

[0093] The junction box 40 further includes an intermediate housing 90 , which surrounds the base plate 42 , the branch line outlet 70 , the electrical protection device 80 , the measuring device 85 , and the mounting rail 88 .

[0094] The intermediate housing 90 abuts against the first and second plates 44 and 45 in the transverse direction Y. Thus, the intermediate housing 90 holds the first and second teeth 48 and 49 engaged with the first lip 16 and the second lip 17, respectively. As a result, it holds the base plate 42 fixed to the sheet 12. In addition, the intermediate housing 90 is fixed to the base plate 42 by screws 91 (not shown).

[0095] The terminal box 40 comprises an outer face 95 made of an electrically insulating material, for example a synthetic material such as plastic, fixed to the intermediate housing 90 by means of screws 97 and covering the intermediate housing 90, the base plate 42 and the elements fixed to the base plate 42. Advantageously, the outer face 95 comprises a window pane or a door 99 so that a user can access the electrical protection device 80 or read the power consumption on the power consumption measuring device 85 when the power consumption measuring device 85 is provided with a display.

[0096] Advantageously, a gasket 96 and an additional gasket not shown, located between the intermediate housing 90 and the base plate 42 according to the thickness direction Z, are interposed between the external face 95 and the intermediate housing 90 according to the thickness direction Z. The gasket 96 and the additional gasket complement the two sealing means 60 so that the terminal box 40 meets water and dustproof index standards, such as IP55 or IP66.

[0097] Optionally, but advantageously, as Figure 1 As shown, the power supply assembly 1 further comprises a terminal box 100. The terminal box 100 is used to ensure that the current flows along the busbar 25 in the joint area 28 without installing the terminal box 40. For example, if two sections of the same busbar 25 are to be connected without adding additional power terminals 5, this situation will require the installation of the terminal box 40.

[0098] To this end, the terminal box 100 comprises a connector, not shown, similar to the connector 75 on the terminal box 40. The terminal box 100 also comprises a base plate 101, which surrounds the connector and the first and second ends 28a and 28b. Advantageously, the base plate 101 is similar to the base plate 42 and in particular comprises a first or upper plate and a second or lower plate, which respectively comprise a plurality of first or upper teeth and a plurality of second or lower teeth, the base plate 101 being fixed to the cable duct 11 by a form-fitting cooperation of the first teeth with the first inner edge 14 of the cable duct 11 and of the second teeth with the second inner edge 15 of the cable duct 11. The base plate 101 may have dimensions parallel to the longitudinal direction X that are smaller than those of the base plate 42, as long as it does not have to contain a branch outlet or an electrical protection device comparable to the elements 70 and 80.

[0099] Advantageously, the base plate 101 defines channels, each channel receiving one of the downstream portions 25b of one of the busbars 25 and an upstream portion 25a adjacent to this downstream portion 25b according to the longitudinal direction X. Advantageously, the two additional channels each receive one of the communication cables.

[0100] The terminal box 100 also comprises an external face 102 fixed to the base plate 101 , for example by screws (not shown), and covering the connector and, for each busbar 25 , the upstream portion 25 a and the downstream portion 25 b connected to the connector.

[0101] Optionally, but particularly advantageously, the terminal box 100 is according to a waterproof and dustproof grade standard, such as IP55 or IP66, and comprises, for example, a gasket between the substrate 101 and the external face 102, and two sealing devices similar to the sealing device 60 of the terminal box 40, which are arranged on either side of the connector according to the longitudinal direction X.

[0102] exist Figure 1 In the embodiment, the power supply assembly 1 further comprises a power supply box 110. The power supply box 110 connects the power supply cable 120 to the bus bar 25. The power supply cable can be connected to a current source so that current flows from the current source to the power supply box 110 through the power supply cable 120.

[0103] The power box 110 comprises a base plate (not visible), an intermediate housing 111 and an external face 112. The base plate, the intermediate housing 111 and the external face 112 are advantageously similar to the base plate 42 or 101, the intermediate housing 90 and the external face 102.

[0104] Specifically, the substrate includes a first or upper plate and a second or lower plate, each including a plurality of first or upper teeth and a plurality of second or lower teeth, the substrate being fixed to the cable duct 11 by shape-fitting cooperation of the first teeth with the first inner edge 14 and the second teeth with the second inner edge 15, the substrate defining channels, each channel receiving one of the busbars 25, and advantageously receiving a communication cable.

[0105] The intermediate housing 111 is fixed to the base plate and abuts the first and second plates, thereby keeping the first and second teeth engaged with the first and second inner edges 14 and 15, respectively. The intermediate housing 111 includes an opening for the power supply cable 120 to pass into the power supply box 110.

[0106] The outer surface 112 is fixed to the intermediate housing 111 , for example, by screws (not shown), and covers the intermediate housing 111 .

[0107] According to an advantageous alternative, the power supply box 110 comprises an isolating switch (not shown) fixed to the power supply box 110, housed in an intermediate housing 111 and covered by an external face 112. The isolating switch is connected between the supply cable 120 and the busbar 25. The isolating switch is configured to interrupt the flow of current in the power supply assembly 1, for example in the event of an electrical fault in the power supply assembly 1.

[0108] According to another advantageous alternative, the power box 110 comprises sealing means similar to the sealing means 60 , and gaskets between the external face 112 and the intermediate housing 111 and between the intermediate housing 111 and the base plate, in particular in order to meet the IP 55 or IP 66 standards.

[0109] According to an alternative not shown, the busbar comprises a single section. In this case, the terminal box 40 is not located in the junction zone between two sections, but in the downstream part of this single section, and the branch outlets each comprise a conductive rod that passes through the sheath of one of the busbars and is in contact with its core. Therefore, the current distribution system does not comprise a terminal box.

[0110] In an alternative not shown, the power supply assembly does not include a power box because the busbars are connected directly to the power supply.

[0111] In an alternative solution not shown, the power supply assembly comprises only a terminal block and power supply terminals connected to the terminal block.

[0112] In an alternative solution not shown, the power supply assembly comprises only two busbars, one of the two busbars being configured for the phase current to flow through and the other of the two busbars being configured as a neutral.

[0113] The system 10 includes many advantages. In particular, the user may choose to form the joint region 28 anywhere he wishes, such as by cutting the busbar 25 and stripping the core 26 to form the first and second ends 28a and 28b.

[0114] The base plate 42 of the junction box 40 may also be fixed at any point on the cable duct 11 , so that the junction box 40 may be fixed to the cable duct regardless of the position of the joining area 28 along the cable duct 11 .

[0115] The system 10 also makes it possible to equip the support surface without having to install all the elements of the system 10. For example, in a first equipping step, also called pre-equipping step, the user only installs the cable duct 11 and the cover 47. As an option, he can also install the base plate 42, the intermediate housing 90 and the outer face 95 of the terminal box 40. Subsequently, the rest of the system 10 is installed as required, and / or in order to expand the system 10, the pre-equipping step is repeated. The pre-equipping step requires only a small amount of hardware, leaving ample room for adapting to the needs of the user at a low cost.

[0116] Thus, by making it possible to remove or add power terminals 5, terminal blocks 40 and create additional junction areas 28, the system 10 can be easily adapted to different needs and also to user needs that change over time. Figure 1 If a user equips a first parking space with power supply terminals and then wishes to have a greater density of power supply terminals 5 than initially planned, for example to equip two additional parking spaces, the system 10 can be modified without having to completely change it.

[0117] To the extent technically feasible, any feature described above with respect to one embodiment or alternative may be implemented with respect to other embodiments and alternatives described above.

Claims

1. A current distribution system (10), comprising: - a cable duct (11) capable of being fixed to a supporting surface (8), which extends according to a longitudinal direction (X), the cable duct (11) comprising a bottom (13), a first edge (14) and a second edge (15), the first edge (14) and the second edge (15) extending on either side of the bottom (13) according to a transverse direction (Y), and each edge comprising a fixing notch (19); a plurality of busbars (25) extending at least partially into the cable duct (11) according to a longitudinal direction (X), each busbar (25) comprising a core (26) of an electrically conductive material configured to conduct electric current, and a sheath (27) surrounding the core (26), the sheath (27) being electrically insulating; as well as - a junction box (40), Characterized in that the distribution system (10) further comprises: - a holding device (30) comprising: o a support (32) extending according to a transverse direction (Y), the support (32) comprising a notch (36), each receiving a busbar (25), and a first latch (38) and a second latch (39), the first latch (38) and the second latch (39) cooperating with a fixing notch (19) of the first edge (14) and a fixing notch (19) of the second edge (15), respectively, o a counter-support (34) which abuts against the support (32) according to the thickness direction (Z), said counter-support (34) elastically deforming the first latch (38) and the second latch (39) so as to keep the first latch (38) and the second latch (39) engaged with the fixing notch (19) of the first edge (14) and the fixing notch (19) of the second edge (15), respectively, - a cover (47) which is clipped onto the cable duct (11) and covers the cable duct (11), the busbars (25) and the retaining device (30); And the junction box (40) comprises: o a base plate (42) comprising a first plate (44) and a second plate (45) comprising a plurality of first teeth (48) and a plurality of second teeth (49), respectively, the base plate (42) being fixed to the cable duct (11) by form-fitting cooperation of the first teeth (48) with the first edge (14) of the cable duct and the second teeth (49) with the second edge (15) of the cable duct, the base plate (42) defining channels (51), each channel receiving a busbar (25); o branch line outlets (70), each branch line outlet (70) being connected to one of the busbars (25), o an electrical protection device (80) connected to at least one branch line outlet (70), o an intermediate housing (90) fixed to the base plate (42) and surrounding the base plate (42), the branch line outlet (70) and the electrical protection device (80), the intermediate housing (90) abutting against the first plate (44) and the second plate (45), the intermediate housing (90) holding the first tooth (48) and the second tooth (49) in engagement with the first edge (14) and the second edge (15), respectively, and o An external face (95) which is fixed to the intermediate casing (90) and covers the branch line outlet (70) and the electrical protection device (80).

2. The system (10) according to claim 1, wherein: The junction box (40) further comprises two sealing devices (60) which are arranged on either side of the branch outlet (70) and the electrical protection device (80) according to the longitudinal direction (X), and each sealing device (60) comprises: a gasket (62) extending according to said transverse direction (Y), housed in said base plate (42), said gasket (62) comprising notches (65) each receiving one of said busbars (25); and A counter-washer (63) extending according to a transverse direction (Y), with the busbar (25) interposed between the washer (62) and the counter-washer (63), the counter-washer (63) being flush with said first plate (44) and second plate (45).

3. The system (10) according to any one of claims 1 and 2, further comprising a power box (110), the power box comprising: - a base plate comprising a first plate and a second plate, the first plate and the second plate comprising a plurality of first teeth and a plurality of second teeth respectively, the base plate being fixed to the cable duct (11) by form-fitting cooperation of the first teeth with the first edge and the second teeth with the second edge, the base plate defining channels, each channel receiving one of the busbars (25), - a disconnector connected between a power supply cable (120) and a busbar (25), the power supply cable (120) being connectable to a power source; - an intermediate housing (111) fixed to the base plate and surrounding the base plate and the disconnector, the intermediate housing (111) comprising an opening for allowing the passage of the power supply cable (120), the intermediate housing (111) abutting against the first plate and the second plate, thereby keeping the first and second teeth engaged with the first edge (14) and the second edge (15), respectively; as well as - An external face (112) which is fixed to the intermediate casing (111) and covers the disconnector.

4. The system (10) according to any one of claims 1 and 2, wherein: Each of the busbars (25) includes an upstream portion (25a) and a downstream portion (25b), each upstream portion (25a) includes a first end (28a) exposing the core (26), and each downstream portion (25b) includes a second end (28b) exposing the core (26), and the second end (28b) is adjacent to the first end (28a) in the thickness direction (Z), and the system (10) further includes: - A junction box (100), comprising: o connectors (75), each of which connects the first end (28a) and the second end (28b) to each other for a given busbar (25), o a substrate (101) surrounding the first end (28a) and the second end (28b) and the connector, the substrate (101) comprising a first plate and a second plate, the first plate and the second plate comprising a plurality of first teeth and a plurality of second teeth respectively, the substrate being fixed to the cable duct (11) by form-fitting cooperation of the first teeth with the first edge of the cable duct (11) and the second teeth with the second edge of the cable duct (11), the substrate (101) defining the channels, each channel receiving an upstream portion (25a) and a downstream portion (25b) of one of the busbars (25); and An external face (112) fixed to the substrate (101) and covering the connector and the first end (28a) and the second end (28b) of the upstream portion (25a) and the downstream portion (25b) of each busbar (25).

5. The system (10) according to any one of claims 1 and 2, wherein: The junction box (40) also includes a measuring device (85) configured to measure power consumption.

6. The system (10) according to any one of claims 1 and 2, comprising five busbars (25), the busbars (25) being configured to respectively conduct the first phase, the second phase, the third phase, the neutral and the potential reference.

7. System (10) according to any one of claims 1 and 2, comprising a plurality of retaining devices (30) distributed according to said longitudinal direction (X).

8. A power supply assembly (1), comprising: - A system (10) according to any one of claims 1 and 2; - at least one power supply terminal (5) connected to the electrical protection device (80) and configured to supply power to an electrical load when connected to the power supply terminal (5) by a user.

9. The power supply assembly (1) according to claim 8, further comprising a communication cable connecting the power supply terminal (5) to an electronic control unit, the support (32) comprising a recess (37) for receiving the communication cable.

10. Assembly (1) according to claim 9, wherein The electrical load is a battery of an electric vehicle (7).

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