EP3377365A1

EP3377365A1 - Electrical socket and plug for recharging an electric vehicle

Info

Publication number: EP3377365A1
Application number: EP16804698.5A
Authority: EP
Inventors: Christophe Bardot; Philippe ATTARD
Original assignee: Bluebus SA
Current assignee: Bluebus SA
Priority date: 2015-11-16
Filing date: 2016-11-09
Publication date: 2018-09-26
Also published as: FR3043602A1; TW201739641A; FR3043602B1; WO2017084928A1

Abstract

The invention relates to an electrical socket (100) for the electric recharging of an electric vehicle comprising at least two electrical energy storage units, in particular disposed in parallel, said electrical socket (100) comprising at least two groups of electrical connectors (102,104) termed power supply connectors, each group (102,104) being designed to receive and transport an electrical power supply signal independently of the other groups (102,104). It also relates to an electrical plug provided for plugging into such an electrical socket. It relates furthermore to an electric vehicle and a recharging station which are equipped, respectively, with such an electric socket or with such an electric plug.

Description

"Electrical plug and plug for recharging an electric vehicle"

The present invention relates to an electrical outlet for recharging an electric vehicle, in particular a bus-type terrestrial public transport electric vehicle, comprising at least two independent electric energy storage assemblies. It also relates to an electrical plug designed to plug with such an electrical outlet. The field of the invention is the field of electrical connectors for recharging electric vehicles, in particular for terrestrial public transport vehicles of the bus, coach or tram-bus type.

State of the art

Electric vehicles, called rechargeable vehicles, include several modules for storing electricity, recharged by a high voltage signal delivered by a charging station external to the vehicle.

More and more electric vehicles comprise several independent electrical energy storage assemblies, each set comprising one or more storage elements of the battery or supercapacitor type. These vehicles comprise for each set an electrical socket for recharging said assembly, with an electrical supply signal which is a function of the characteristics of each set: capacity, load levels, power levels, temperature of the storage assembly, etc. . Each electrical outlet therefore receives a power signal adapted to the assembly associated with said socket. Therefore, these electric vehicles each include as many electrical outlets as storage sets.

However, such an architecture with several electrical outlets is cumbersome and expensive. In addition, it is not very ergonomic because it requires independent handling for each socket during each operation of connection and disconnection of the vehicle to a source electric outside the vehicle. Moreover, each of these manipulations presents a danger of electrocution for the operator because of the high voltage signals conveyed.

An object of the present invention is to overcome these disadvantages.

Another object of the invention is to provide a more ergonomic socket and plug for recharging an electric vehicle comprising several independent electrical energy storage assemblies.

It is also an object of the invention to provide a plug and an electrical plug, presenting less risk for the operator, when reloading an electric vehicle comprising several independent electrical energy storage assemblies.

Another object of the invention is to provide a plug and a plug less expensive and / or less bulky, for recharging an electric vehicle comprising several independent electrical energy storage assemblies.

Presentation of the invention

The invention makes it possible to achieve at least one of these objects by an electrical socket for the electric recharging of an electric vehicle comprising at least two rechargeable electrical energy storage assemblies, in particular arranged in parallel, said electrical socket comprising at least two groups of electrical connectors, said power supply, each group being provided for receiving and transporting an electrical supply signal independently of the other groups.

Thus, the socket according to the invention makes it possible to independently receive, and in parallel, at least two different or identical electrical supply signals for reloading independently, and in series, at least two sets of storage facilities. electric energy.

Therefore, the invention makes it possible, with a single plug, to feed several electrical energy storage assemblies, in particular arranged in parallel, and avoids the use of multiple electrical outlets, which is less expensive and less cumbersome than the use of multiple electrical outlets.

In addition, thanks to the socket according to the invention, the operator can connect and disconnect several sets of electrical energy storage in a manipulation, where the architectures of the state of the art require several manipulations, which is more ergonomic and safer for the operator. In the present application, a "tram-bus" designates a terrestrial public transport vehicle mounted on wheels and which recharges at each station, so as not to require heavy rail-type, catenary-type infrastructure on the road. Such an electric vehicle is recharged at each station by means of load elements of the station and a connector connecting said vehicle to said station.

In the present application, the term "high voltage" designates a DC voltage greater than or equal to 60V. According to current standards, such a voltage is also called "dangerous voltage". The socket according to the invention may advantageously comprise at least one means for detecting the locking of said socket with an electrical plug plugged with said socket.

Such detection means makes it possible to emit a control signal authorizing the beginning, respectively the end, of the supply of an electrical signal, and in particular an electrical supply signal, as a function of the position of an electrical plug. plugging in with the electrical outlet.

Such detection means may be arranged to detect the position of the electrical plug relative to the electrical outlet.

According to a nonlimiting exemplary embodiment, such a detection means may comprise an electromagnetic sensor, arranged in / on / around said electrical socket, for detecting the presence and / or positioning of a magnet arranged in said plug. In addition, according to an advantageous characteristic, the socket according to the invention may comprise at least one means of protection of at least one, in particular of each connector.

Such a protection means may be used to prevent access to the connector (s) when the socket is not used in view:

- to avoid an electrocution of an operator, and / or

- to protect the connectors against external aggressions, for example against corrosion. Such a protection means may comprise at least one wall, such as a disc, arranged in said socket, and which can be moved, and in particular in rotation, about an axis between:

a first position, in which it prohibits access to the connector (s) of said socket, and

- A second position, in which it allows access to the connector (s) of said socket.

In the first position, the protection may be provided by contact of said wall, or said disc, with a surface of said socket or another wall.

According to a particular embodiment, the protection means may comprise a set of two walls, arranged one against the other, free in translation, one of the walls being arranged rotatably relative to the other of the walls, when of the translation of said set, between:

In particular, each of the two walls may comprise, for each connector, a through hole for accessing said connector:

in the first position, the hole of one of the walls associated with each connector is offset relative to the hole of the other wall associated with said connector: in this position each connector of said socket is protected because not accessible; and

- In the second position, the hole of one of the walls associated with each connector is aligned with the hole of the other wall associated with said connector: in this position each connector of said socket is accessible.

The rotatable wall can be rotated by means of an electrical plug coming into contact with said socket, and causing the translation of all the two walls, and thus the rotation of one of the walls relative to on the other side of the walls.

Alternatively, the rotation can be performed manually independently of the electrical plug.

According to the invention, at least one, in particular each, group of connectors may comprise at least two, in particular exactly two, power connectors, each of which is intended to be set to a different electrical potential.

Thus, for example, each power connector group may include a "+" power connector and a "-" power connector.

In addition, at least one, in particular each, group of connectors may comprise a connector, called a ground connector, intended to be connected to an electrical ground, in particular to earth.

In an advantageous version of the plug according to the invention, at least two groups comprise a common ground connector. In other words, the same ground connector is associated with two groups of connectors.

In an even more advantageous version, the socket according to the invention may comprise a single ground connector common to all of the connector groups of said socket. Such an architecture makes it possible to reduce the number of connectors of the socket according to the invention, and thus to reduce its cost and its dimensions.

In addition, the socket according to the invention may advantageously comprise at least one connector, said complementary, such as for example any combination of at least one of the following connectors:

at least one, in particular two, electrical connector (s) for carrying a communication signal with at least one, in particular each, storage assembly,

at least one electrical connector designed to receive a signal carried by a pilot wire,

at least one electrical connector designed to receive a low-voltage electrical supply signal from at least one auxiliary circuit,

at least one electrical connector designed to receive a presence signal from an electrical plug on said electrical socket,

at least one electrical connector designed to receive a signal for locking an electrical plug on said electrical outlet, and

at least one electrical connector designed to receive an inhibition signal from an electric recharging station supplying the electrical supply signals.

In a preferred version of the socket according to the invention, at least one connector of the socket according to the invention may be a male connector, intended to be plugged with a female connector of a plug.

Alternatively, at least one connector of the socket according to the invention may be a female connector, provided to plug with a male connector of a plug provided to plug with a female connector of said socket. The socket according to the invention may comprise a form of coupling, male or female, coming to plug with a complementary shape, female or male, provided on the electrical plug.

For example, the socket according to the invention may comprise a coupling housing provided to accommodate a male coupling part of an electrical plug. Alternatively, the socket according to the invention may comprise a form of male coupling provided to plug with a coupling housing provided on an electrical plug.

Advantageously, at least one, in particular all connectors of the socket may be disposed within or at the said coupling form, and in particular inside the coupling housing.

The socket according to the invention may comprise at least one means for guiding and / or positioning a plug that comes into contact with said socket, when said plug is plugged with said socket.

The at least one guide means can be arranged in the coupling form, and in particular in the coupling housing.

Such a guiding and / or positioning means may comprise at least one recess or a rail or a notch, and more generally a male or female shape cooperating with a complementary shape provided on the plug.

According to an exemplary embodiment, the socket according to the invention may have a circular outer section.

Alternatively or additionally, the socket according to the invention may comprise a housing, and more generally a form, coupling of circular section. When the plug is of circular outer section, said circular outer section of the socket and the circular housing, and more generally the circular coupling form, may have the same center.

Alternatively or in addition, the power connectors, and possibly the ground connector, may be arranged along a path defining a circle, in particular in an equiangular manner, that is to say in an identical angular pitch. When the plug is section outer circular and / or the coupling housing is circular in shape, then the center of said path may be coincident with the center of the outer circular section of the socket and / or with the center of said circular coupling housing.

Alternatively or in addition, the complementary connectors may be arranged in one or more circular paths, in particular concentric, and in particular in an equiangular manner, that is to say in an identical angular pitch.

When :

the plug is of circular outer section, and / or

the coupling housing is circular, and / or

- The power connectors, and possibly the ground connector, are arranged in a circular path, then the center of the path or paths in which / the complementary connectors are arranged may be coincident with the center of the circular outer section of the socket and / or the center of the circular housing and / or the center of the path on which the power connectors are arranged.

Alternatively or additionally, the power connectors and the complementary connectors are alternately arranged, ie at least one complementary connector is arranged between two power connectors.

According to another aspect of the invention, there is provided an electrical plug, for the electric recharging of an electric vehicle comprising at least two sets of electrical energy storage, provided to plug with an electrical socket according to the invention .

Such an electrical plug presents alone or in combination:

- the same characteristics as the electrical outlet regarding the number, function and arrangement of the connectors;

- complementary characteristics as regards the shape of the connectors and the shape of the socket, the shape of the coupling housing, the locking means, the protection means, as described above.

According to yet another aspect of the same invention, there is provided a charging station for the electric recharging of an electric vehicle provided with a plug and / or a plug according to the invention.

According to yet another aspect of the same invention, there is provided an electric vehicle with a plug and / or plug according to the invention.

The vehicle according to the invention may for example be a terrestrial electric public transport vehicle, of the bus, bus or tram-bus type.

According to the invention, each set of electrical energy storage can comprise one or more batteries. Each battery can advantageously be or include at least one lithium-metal-polymer battery, also known as battery "LMP ^®" or a supercapacitor.

Description of the Figures and Embodiments

Other advantages and features will become apparent upon review of the detailed description of non-limiting embodiments, and the accompanying drawings in which:

FIGURES 1-5 are schematic representations of a non-limiting example of a plug according to the invention; and

FIGURES 6-9 are schematic representations of a non-limiting example of a plug according to the invention.

It is understood that the embodiments that will be described in the following are in no way limiting. It will be possible to imagine variants of the invention comprising only a selection of characteristics described below, isolated from the other characteristics described, if this selection of features is sufficient to confer a technical advantage or to differentiate the invention from the state of the art. This selection comprises at least one preferably functional characteristic without structural details, or with only a part of the structural details if this part is only sufficient to confer a technical advantage or to differentiate the invention from the state of the prior art.

In the figures, the elements common to several figures retain the same reference. FIGURES 1-5 are schematic representations of an exemplary non-limiting embodiment of an electrical socket according to the invention.

FIGURE 1 is a representation of the take in a front view, FIGURES 2 and 5 are representations of the take in a sectional view, FIGURE 3 is a schematic representation of the take in a side view and the FIGURE 4 is a representation of the tap in an isometric view.

The socket 100, shown in FIGURES 1-5 is provided for the electric charging of an electric vehicle comprising two sets of rechargeable electrical energy storage.

Plug 100 includes two groups of power supply connectors for independently receiving and transporting two power supply signals. Each group of power connectors comprises two electrical power connectors, namely 102i and 102 ₂ for the first group and 104i and 104 ₂ for the second group. One of the power connectors of each group, for example the power connectors 102i and 104i, is provided to carry a higher electrical potential and the other one of the power connectors of each group, for example the power connectors. power supply 102 ₂ and 104 ₂ , is provided to carry a lower electric potential.

The electrical outlet 100 further comprises a ground connector

106, common to both groups of power connectors.

The electrical outlet 100 further comprises electrical connectors, called complementary connectors, namely: two connectors 108i and IO82, called communication, for carrying a communication signal with each storage unit, and / or

a connector 110, called a pilot, intended to receive a signal carried by a pilot wire,

a low-voltage electrical connector 112 designed to receive a low-voltage electrical supply signal from at least one auxiliary circuit, and / or

at least one electrical connector 114 provided for receiving a presence signal from an electrical plug plugged into the electrical socket 100, and / or

at least one electrical connector 116 provided for receiving a locking signal of an electrical plug with the electrical socket 100, and / or

at least one electrical connector 118 provided for receiving an inhibition signal from an electric recharging station supplying the electrical supply signals.

The set of electrical connectors is in a housing 120 female, fixed in one, or integral with a, a bottom wall 122 of said housing 120 (FIGURE 2). The housing 120 provides a form of female coupling with a male coupling form of an associated electrical plug comprising electrical connectors complementary to those described above. The socket 100 also comprises guiding and positioning elements of a plug when it is plugged with the electrical outlet 100.

In particular, the electrical outlet 100 comprises:

in the central part, and more particularly in the central part of the coupling housing 120, a male guide element 124 intended to engage in a female guide shape provided on the electrical plug; and - In its periphery, and more particularly at the periphery of the coupling housing 120, the notches / grooves female 126- 1263 (FIGS RES 1 and 4) provided to receive the male g uidage forms provided on the electrical plug.

In particular, the notches 126i-12o3 are disposed in an identical angular pitch, particularly 120 °, on the side walls of the coupling housing 120.

The socket 100 further comprises a protection means 102-118 connectors for:

- to avoid an electrocution of an operator, and / or

- to protect the connectors against external forces, for example against corrosion. In the example shown, the protection means comprises a set of two walls 128 and 130, visible on FIG 2, mounted on a fixed spring 132 secured to the socket 100, particularly in the bottom of the coupling housing. 120. The assembly formed by the two walls 128-130 is movable in translation in the coupling housing 120, exerting pressure along a direction perpendicular to the plane formed by the said walls. The wall 128 is under the wall 130, that is, closer to the bottom wall 122 of the coupling housing 120. The wall 130 is non-rotatable relative to the socket 100 and the wall 128 is rotatably mounted relative to the wall 130.

Alternatively, the wall 128 may be non-rotatably mounted and the wall 130 may be rotatably mounted relative to the wall 128.

The wall 128 is rotated relative to the wall 130, when the assembly, formed by the two walls 128 and 130, is translated into the socket, and in particular into the coupling housing 120, for example By way of an exemplary embodiment, the wall 128 can be rotated through a twisted groove (not shown) provided on the inner surface of the housing. coupling 120. In the example shown, each of the walls 128 and 130 comprise, for each connector 102-118, a through hole allowing access to said connector 102-118.

In a so-called closed position, the wall 128 is positioned so that the through holes of said wall 128, associated with the connectors 102-118, are offset relative to the through holes of the wall 130 associated with the connectors 102-118. In this closed position, no access is allowed to connectors 102-118, which are sealed. This closed position is obtained when all the walls 128 and 130 are in the rest position, that is to say not subject to a translation, and are remote from the bottom wall 122.

In a second position, called open, obtained by rotation of the wall 128 relative to the wall 130, the through holes of said wall, associated with the connectors 102-118, are opposite the through holes of the wall 130, associated with the connectors. 102-118, thus allowing access to each of the connectors 102-118. This open position is obtained when all the walls 128 and 130 has been translated and is close to the bottom wall 122 following said translation.

Thus, when the wall 128 is rotated in open position relative to the wall 130, and all the walls 128-130 is pushed towards the bottom of the coupling housing 120 by compressing the spring 132, each connector 102-118 traverses the aligned holes of the walls 128-130 associated therewith, and can engage with a corresponding connector of an associated electrical plug.

In the example shown, the rotation of the wall 128 with respect to the wall 130 is provided by means of an electrical plug which is plugged into the socket 100.

FIGURE 2 is a representation of the socket in which the walls 128 and 130 are in a position, called the first position, corresponding to their rest positions preventing access to connectors 102-118. FIGURE 5 is a representation of the socket in which the walls 128 and 130 are in a position, said second position, in which access to the connectors 102-118 is permitted. Indeed, in the second position the through holes, provided on the walls 128 and 130, and allowing access to connectors 102-118 are aligned.

The plug 100 comprises a finger 134 integral with the wall 128 and protruding from the wall 130 (FIGURE 4), in a through opening 136 provided in the wall 130. The finger 134 is provided to be housed in a recess provided on a electric plug. When the electric plug is inserted in the socket 100, and in particular in the coupling housing 120, the finger 134, integral with the wall 128, is rotated by the rotary wall 128.

In the example shown, the finger 134 constitutes a rotation drive means for rotating a protective wall of an electrical plug associated with said socket, as described below.

For simplicity of representation and referencing, on

FIGURES 1 and 4, the connectors and the through holes associated with these connectors are merged.

The socket 100, shown in FIGURES 1-5, furthermore comprises a means 138 for detecting the locking of the socket 100 with an electrical plug, when the latter is plugged into said electrical socket. The detection means provides an electrical signal enabling the prohibition of the supply of an electrical supply signal by a charging station, when the socket 100 is locked with a plug, respectively is not locked. with a card.

In the example shown in FIGURES 1-5, the detection means 138 comprises an electromagnetic sensor (not shown) detecting the presence and positioning of an electrical plug plugged into said socket, by cooperation with a magnet arranged in said plug . Thus, depending on the position of the plug a signal is emitted by the electric vehicle and / or to a charging station, to allow or prohibit the start or stop of the supply of the electrical signal.

The electromagnetic sensor is powered via electrical connectors 140. In the example of FIGURES 1-5, each of the connectors 102-118 is a male connector provided for insertion into a female connector provided on an electrical plug.

In the example of FIGURES 1-5, the electrical outlet 100 has a circular outer section.

In addition, the coupling housing 120 has a circular section, of the same center as the outer section.

In addition, the power connectors 102-104 and ground / ground connector 106 are arranged at a constant 72 ° angular pitch in a circular path of the same center as the center of the circular coupling housing section 120. and the outer section of the socket 100.

Furthermore, the complementary connectors 108-118 are arranged, in pairs, at a constant angular pitch of 72 °, on a circular path of the same center as the center of the section of the circular coupling housing 120, the center of the section. outside the socket 100 and the center of the path on which are arranged the power connectors 102-104 and the ground connector 106.

In addition, the power connectors 102-104 and the ground connector 106, on the one hand, and the complementary connectors 108-118, on the other hand, are arranged alternately, so that a connector of power supply (or ground) has on each side a pair of complementary connectors.

The electrical outlet 100 can be arranged fixed on a vehicle or an electric charging station.

Alternatively, the electrical outlet 100 may be disposed at the end of a charging cable on an electric vehicle or on an electric charging station.

FIGURES 6-9 are schematic representations of an exemplary non-limiting embodiment of an electrical plug according to the invention. The FIGU RE 6 is a representation of the plug according to a front view, the FIGU RE 7 a representation of the plug in a neck view pe, FIGU RE 8 is a schematic representation of the plug in a side view and FIGU RE 9 is a representation of the plug in an isometric view.

The plug 200, shown in FIGS RES 6-9, is intended to be plugged with the electrical plug 100 of FIGS RES 1-5, to achieve an electric recharging of an electric vehicle comprising two storage assemblies. Rechargeable electrical energy.

The electrical plug 200 has connectors adapted and properly positioned to cooperate with the connectors of the socket 100.

Each connector of the plug 200, associated with a connector of the socket 100, retains an identical reference beginning with a "2" instead of a "1". Thus, the electrical plug 200 comprises:

supply connectors 202 ₁ and 202 ₂ associated with the connectors 102 ₁ and 102 ₂ of the socket 100, and the supply connectors 204 ₁ and 204 ₂ associated with the connectors 104 ₁ and 104 ₂ of the socket 100;

a common ground connector 206 associated with the ground connector 106 of the socket 100;

complementary connectors 208i, 208 ₂ and 210-218 respectively associated with the complementary connectors 108i, 108 ₂ and 110-118 of the socket 100 to perform the functions associated with them at the level of the plug 200.

The electrical connectors of the plug 200 are in a part 220, called plug head, male, of suitable shape and dimensions to plug into the coupling housing 120 of the socket 100.

The plug 200 also includes elements for guiding and positioning said plug 200 when it is plugged into the electrical outlet 100. In particular, the electrical plug 200 comprises:

in the central part, a recess 224 into which the male gage element 124 of the socket 100 engages; and - In its periphery, legs 226i-22Ô3 coming into the notches / grooves females 126i-12Ô3 provided on the socket 100.

In particular, the tabs 226i-223 are disposed in an identical angular pitch, particularly 120 °, on the periphery of the plug head 220.

Like plug 100, plug 200 further includes a means for protecting connectors 202-218.

In the example shown in FIGS RES 6-9, the protection means comprises a set of two walls 228 and 230, visible on FIGU RE 7. The assembly formed by the two walls 228-230 is fixed.

The wall 228 is under the wall 230, that is, closer to the connectors. The wall 230 is non-rotatably mounted and the wall 228 is rotatably mounted relative to the wall 230. Alternatively, the wall 228 may be non-rotatably mounted and the wall 230 may be rotatably mounted relative to the wall 228.

Each of the walls 228 and 230 comprises, for each connector 202-218, a through hole allowing access to the connector 202-218.

In a closed position, the wall 228 is positioned such that the through holes of the wall 228, associated with the connectors 202-218, are offset from the through holes of the wall 230 associated with the connectors 202. 218. In this closed position, no access is allowed to connectors 202-218, which are protected in a leakproof manner.

In a second position, said open, obtained by rotation of the wall 228 with respect to the wall 230, the holes passing through said wall 228, associated with the connectors 202-218, are opposite the through holes of the wall 230, associated with the connectors. 202-218, thus allowing access to each of the connectors 202-218. In this position, each 202-218 connector can be engaged with a connector of an electrical outlet.

In the example shown, the rotation of the wall 228 with respect to the wall 230 is provided by means of an electrical plug that plugs into the plug 200, such as the socket 100 of the FIGU RES 1-5 . In particular, the plug 200 comprises a recess 234 (FIGURE 6), arranged in the wall 228 and accessible from the wall 230 through a through opening 236 provided in this wall 230. The recess 234 is provided to accommodate a means of male drive of an electrical outlet, such as the finger 134 of the socket 100 described above, housed in said recess 234. Thus, when the plug 200 is engaged in the socket 100, the finger 134 is housed in the housing. 234. The depression of the plug 200 in the socket 100 causes the rotation of the wall 128 of the socket 100, and therefore the rotation of the finger 134 secured to said wall 128. The finger 134 being engaged in the recess 234 of the wall 228, it rotates the recess 234 in the opening 136, which rotates the wall 228 of the plug 200 relative to the wall 230 to bring it into the open position in which the respective through holes walls 228 and 238 are aligned s and allow access to connectors 202-218.

For simplicity of representation and referencing, on

FIGURES 5 and 7, the connectors and the through holes associated with these connectors are merged.

In addition, the plug 200 according to the invention may comprise means for controlling the beginning and / or end of the supply of at least one electrical signal, and in particular of at least one electrical supply signal.

In the example shown in FIGURES 6-9, the control means comprises a magnet, coming to control an electromagnetic sensor disposed in the electrical outlet 100, when the plug 200 is engaged and positioned correctly in the electrical outlet 100.

The electrical plug 200 further includes a handle 240.

In the example of FIGURES 6-9, each of the connectors 202-218 is a female connector adapted to receive a male connector provided on an electrical outlet, such as the male connectors 102-118 of the socket 100 of FIGURES 1-5.

Each connector 202-218 of the plug 200 is connected to one or more cable (s) passing in the electrical plug 200. Similarly, each connector 102-118 of the socket 100 is connected to one or more cable (s) pass in the electrical outlet 100.

In the example of FIGURES 6-9, the electrical plug 200 has a circular outer section, in particular at the plug head 220.

In addition, the power supply connectors 202-204 and ground / ground connector 206 are arranged at a constant 72 ° angular pitch in a circular path of the same center as the center of the circular section 220 of the plug 200.

Furthermore, the complementary connectors 208-218 are arranged, in pairs, at a constant angular pitch of 72 °, on a circular path of the same center as the center of the circular section of the plug head 220, and the center of the path on which are arranged the supply connectors 202-204 and the ground connector 206.

In addition, the power supply connectors 202-204 and the ground connector 206, on the one hand, and the complementary connectors 208-218, on the other hand, are arranged alternately, so that a connector of power supply (or ground) has on each side a pair of complementary connectors.

The electrical plug 200 is disposed at the end of a charging cable on an electric vehicle or on an electric charging station.

Alternatively, the electrical plug 200 can be arranged fixed on a vehicle or an electric charging station.

Of course, the invention is not limited to the examples detailed above. For example, alternatively, the coupling housing can be provided on the plug and not on the socket, the latter then having a male coupling part.

In addition, alternatively to what is described, at least one connector of the plug, respectively of the plug, can be a female connector, respectively male. In addition, the plug or the plug may comprise more than two groups of power connectors, each group being associated with an independent power signal.

The number of complementary connectors, respectively their function, may be different from what is described.

The position of at least one connector may be different from that described in the examples.

In particular, the number of storage modules is not limited to that given in the examples, and corresponds to the maximum of energy storage modules depending in particular on the weight of the vehicle and the autonomy considered sufficient for the operation of the vehicle .

Claims

An electric socket (100) for the electric charging of an electric vehicle comprising at least two electrical energy storage assemblies, in particular arranged in parallel, said electrical socket (100) comprising at least two groups of electrical connectors (102). , 104), said power supply, each group (102, 104) being arranged to receive and carry an electrical supply signal independently of the other groups (104, 102);

characterized in that it comprises at least one locking detection means of said plug (100) with an electrical plug (200) plugged with said socket (100).

2. Socket (100) according to the preceding claim, characterized in that the locking detection means comprises an electromagnetic sensor, arranged in / on / around said electrical outlet, for detecting the presence and / or positioning of a magnet. arranged in said form.

3. Socket (100) according to any one of the preceding claims, characterized in that it comprises at least one means of protection (128, 130) of at least one connector (102-118) of said plug (100) .

4. Socket (100) according to the preceding claim, characterized in that the at least one protection means comprises a set of two walls (128, 130), arranged against one another, free in translation, the one (128) of the walls (128, 130) being rotatably arranged relative to the other (130) of the walls, during the translation of said assembly, between:

a first position, in which it prohibits access to the connector (s) (102-118) of said socket (100), and

a second position, in which it leaves access to the connector (s) (102-118) of said plug (100).

5. Socket (100) according to any one of the preceding claims, characterized in that at least one, in particular each, group of connectors (102, 104) comprises at least two, in particular exactly two, electrical connectors (102i , 102 ₂ ; 104i, 104 ₂ ) each intended to be set to a different electrical potential.

6. Plug (100) according to any one of the preceding claims, characterized in that at least one, in particular each group (102, 104) comprises a connector (106), said mass, intended to be connected to an electrical mass, especially to the ground.

7. Socket (100) according to the preceding claim, characterized in that at least two groups (102, 104) comprise a common ground connector (106).

8. Socket (100) according to any one of the preceding claims, characterized in that it comprises at least one, in particular two, electrical connector (s) (108i, 108 ₂ ) for carrying a communication signal with at least one, in particular each, storage set.

9. Socket (100) according to any one of the preceding claims, characterized in that it comprises at least one electrical connector (110) provided for receiving a signal carried by a pilot wire.

10. Socket (100) according to any one of the preceding claims, characterized in that it comprises at least one electrical connector (112) adapted to receive an electrical low-voltage supply signal of at least one auxiliary circuit.

11. Socket (100) according to any one of the preceding claims, characterized in that it comprises at least one electrical connector (114) adapted to receive a presence signal of an electrical plug on said electrical outlet.

12. Socket (100) according to any one of the preceding claims, characterized in that it comprises at least one electrical connector (116) provided for receiving a locking signal of an electrical plug on said electrical outlet.

13. Socket (100) according to any one of the preceding claims, characterized in that it comprises at least one electrical connector (118) provided for receiving a signal of inhibition of an electric charging station providing the electrical signals d 'food .

14. Socket (100) according to any one of the preceding claims, characterized in that at least one connector (102-118) is a male connector, respectively female, intended to be plugged with a female connector (202-218). ), respectively male, an electrical plug (200) provided to plug with said socket (100).

15. Socket (100) according to any one of the preceding claims, characterized in that it comprises a coupling housing (120) provided for receiving a male coupling portion (220) of an electrical plug (200). .

16. Socket (100) according to any one of the preceding claims, characterized in that it comprises at least one means for guiding and / or positioning a plug which is plugged with said socket, when said plug is plugged with said plug.

17. Socket (100) according to any one of the preceding claims, characterized in that the connectors of said socket are arranged in a path defining a circle at an identical angular pitch.

Electric plug (200), for the electric recharging of an electric vehicle comprising at least two electrical energy storage assemblies, designed to be plugged with an electrical outlet (100) according to one of any of the preceding claims, for the electric recharging of the electrical energy storage elements of an electric vehicle comprising at least two independent electrical energy storage assemblies;

characterized in that said electrical plug (200) comprises means sensed by the lock detection means (138) of said electrical outlet (100) when said electrical outlet (100) is locked with said electrical plug (200).

19. Electric vehicle equipped with:

a plug (100) according to any one of claims 1 to 17, or

- A plug (200) according to the preceding claim.

20. Vehicle according to the preceding claim, characterized in that it is a public transport vehicle of the bus, bus or tram-bus type.

21. Charging station for the electric recharging of an electric vehicle equipped with:

- a plug (100) according to any one of claims 1 to

17, or

- A plug (200) according to claim 18.