Charging socket for an electrically driven motor vehicle, charging plug, arrangement and method

Abstract

A charging socket (4) for an electrically driven motor vehicle, comprising a receiving space (3) for arranging a charging plug (2), which is at least partially delimited by a housing element (5), and comprising at least one magnetic device (9) by means of which at least one magnetic field (10) can be generated, via which the magnetic device (9) can be coupled to at least one magnetic flux (12) resulting in a magnetic structure (8) of the charging plug (2) for translational movement (11) of the charging plug (2) relative to the housing element (5), characterized in that the magnetic device (9) has a laminated core (19) which has a plurality of laminated core regions (23) by which the receiving space (3) is partially delimited outwards in its radial direction (24),wherein the laminated core regions (23) are arranged in pairs adjacent to one another and spaced apart from one another along an axial direction (25) of the charging socket (4), and a respective intermediate space (26) is arranged between the laminated core regions (23) spaced apart from one another in pairs.

Description

[0001] The invention relates to a charging socket for an electrically driven motor vehicle according to the preamble of patent claim 1. Furthermore, the invention relates to a charging plug for a charging device for charging an electrical energy storage device of an electrically driven motor vehicle according to patent claim 7. In addition, the invention relates to an arrangement of a charging plug in a receiving space of a charging socket of an electrically driven motor vehicle according to the preamble of patent claim 8. Furthermore, the invention relates to a method for arranging a charging plug in a receiving space, at least partially delimited by a housing element, of a charging socket of an electrically driven motor vehicle according to the preamble of patent claim 9.

[0002] DE 20 2021 106 942 U1 discloses a socket for charging an electrically driven, mobile means of traffic or transport, in particular a motor vehicle, comprising a receiving opening for a plug of a charging cable, wherein a coupling device for motorized retraction of the plug in the axial direction into the receiving opening and for withdrawal therefrom is arranged in the region of the receiving opening.

[0003] Furthermore, JP 2020-64 714 A discloses a connector device comprising a first connector and a second connector that are detachably connected to one another. Furthermore, CN 1 11 478 118 A discloses charging plugs and sockets for electric vehicles with a socket body and a plug body. CN 1 15 742 797 A also discloses a method for charging control. Furthermore, DE 20 2010 015 377 U1 discloses a safety contact element for supplying positionable systems, machines, and vehicles with electrical current. Furthermore, DE 10 2019 007 156 A1 discloses a charging device for charging an electrical energy storage device of an electrically powered vehicle.

[0004] It is an object of the invention to provide a charging socket for an electrically driven motor vehicle, a charging plug, an arrangement and a method for arranging a charging plug in a receiving space of a charging socket of an electrically driven motor vehicle, so that an electrical energy storage device of the motor vehicle can be charged with particularly little effort.

[0005] This object is achieved according to the invention by a charging socket for an electrically driven motor vehicle having the features of patent claim 1, by a charging plug for a charging device for charging an electrical energy storage device of an electrically driven motor vehicle having the features of patent claim 7, by an arrangement of a charging plug in a receiving space of a charging socket of an electrically driven motor vehicle having the features of patent claim 8 and by a method for arranging a charging plug in a receiving space of a charging socket of an electrically driven motor vehicle having the features of patent claim 9. Advantageous embodiments of the invention are the subject of the dependent patent claims and the description.

[0006] A first aspect of the invention relates to a charging socket for an electrically powered motor vehicle. The motor vehicle is designed, for example, as a motor vehicle, in particular as a passenger car, commercial vehicle, or truck. Preferably, the motor vehicle, particularly in its fully manufactured state, has the charging socket. The charging socket can be referred to, in particular, as a charging socket or power outlet.

[0007] The term "electrically driven" refers, in particular, to the motor vehicle being designed as a battery-electric vehicle or a hybrid vehicle. Thus, the motor vehicle has, in particular, at least one electric machine by means of which the motor vehicle can be driven, in particular purely electrically.

[0008] The charging socket has at least one receiving space for arranging a charging plug, which is at least partially, in particular predominantly or completely, delimited by at least one housing element, in particular at least indirectly or directly. In other words, the receiving space is formed at least partially, in particular predominantly or completely, by the housing element. In other words, the receiving space is at least partially, in particular predominantly or completely, surrounded or covered by the housing element, in particular in the radial direction of the receiving space.

[0009] For example, the housing element has at least one inner or inwardly directed lateral surface, by which the receiving space is at least indirectly, in particular directly, delimited. The inner or inwardly directed lateral surface can be understood, in particular, as a lateral surface of the housing element that is directed or points inward relative to a radial direction of the charging socket, in particular of the receiving space.

[0010] The receiving space is designed or provided for arranging the charging plug, in particular at least one receiving area of the charging plug. This means that the charging plug, in particular the receiving area, can be arranged at least partially, in particular predominantly or completely, in the receiving space, in particular for charging an electrical energy storage device of the motor vehicle. The charging socket and the charging plug are preferably designed separately from one another.

[0011] The charging plug is, for example, part of a charging device. The charging device has, for example, at least one charging cable. Thus, the charging device has, for example, the charging plug and the charging cable, wherein the charging cable and the charging plug are preferably connectable or connected to one another, in particular electrically and / or mechanically. The charging plug, in particular the charging device, and the charging socket are, for example, part of a charging system for charging the electrical energy storage device of the motor vehicle.

[0012] For example, the charging socket has at least one receiving element, which can in particular be referred to as a connecting element. The receiving element of the charging socket can in particular be referred to as a first receiving element. For example, the charging plug has at least a second receiving element, which can in particular be referred to as a second connecting element or as a second receiving element. The receiving elements can preferably be connected to one another or are connected to one another, for example by means of a plug connection, in particular electrically and / or mechanically. Thus, the charging plug and the charging socket can be connected to one another via the receiving elements, in particular mechanically and / or electrically, in particular in order to charge the electrical energy storage device of the motor vehicle. The receiving elements are preferably designed to correspond to one another. The first receiving element is preferably arranged in the receiving space.The second receiving element is, for example, part of the receiving area of the charging plug. The respective receiving element of the charging socket can be understood in particular as a respective connection element, in particular an electrical one.

[0013] Preferably, the charging plug, in particular the receiving area of the charging plug, can be arranged at least partially in the receiving space in order to electrically connect the charging plug, in particular via the second receiving element, to the first receiving element of the charging socket. This preferably enables or causes an electrical connection between the charging plug, in particular via the connection elements, and the electrical energy storage device of the motor vehicle, in particular in order to charge the electrical energy storage device.

[0014] Charging the electrical energy storage device can be understood in particular as supplying the electrical energy storage device with electrical current, in particular via the charging plug and the charging socket. The electrical current can preferably be provided or is provided via the charging device. The electrical energy storage device is preferably designed as a battery or an accumulator. For example, the electrical energy storage device is designed as a high-voltage component, in particular as a high-voltage battery. The electrical machine of the motor vehicle can preferably be supplied with electrical energy stored or chemically bound in the electrical energy storage device for driving the motor vehicle, in particular purely electrically.

[0015] In order to be able to charge the electrical energy storage device of the motor vehicle with particularly little effort, in particular particularly conveniently, the invention provides that the charging socket has at least one magnetic device, which can in particular be referred to as the first component. By means of the magnetic device, at least one magnetic field can be generated or is generated, which can in particular be referred to as the first magnetic field. In other words, it is provided that the magnetic field can be generated or is generated by means of the magnetic device, from which a magnetic flux results, which can in particular be referred to as the first magnetic flux.Via the magnetic field, the magnetic device for translationally moving the charging plug, in particular the receiving area of the charging plug, relative to the housing element can be or is coupled to at least one magnetic flux resulting in or from a magnetic structure of the charging plug, which can in particular be referred to as a second magnetic flux.This means that the magnetic device can be coupled or is coupled to the resulting magnetic flux of the magnetic structure via the magnetic field or by means of the magnetic field of the magnetic device in order to move the charging plug, in particular the receiving area of the charging plug, translationally relative to the housing element of the charging socket, in particular in order to arrange the charging plug, for example selectively, in the receiving area, i.e. to move the charging plug at least partially into the receiving space, and / or to remove the charging plug, in particular the receiving area, from the receiving space, i.e. to move it out of the receiving space. The magnetic flux resulting in the magnetic structure can be understood in particular as a magnetic flux resulting from the magnetic field generated by the magnetic device.Thus, it can be provided that the magnetic field can be generated or is generated by means of the magnetic device, from which the first and second magnetic fluxes result, by which, in particular by utilizing reluctance force, the charging plug can be moved or is moved translationally relative to the housing element of the charging socket. The magnetic structure can in particular be referred to as the second component.

[0016] In other words, the first component is designed as a magnetic field-generating component, by means of which the magnetic field of the magnetic device can be provided, in particular can be generated, or is provided, in particular generated. This means that the magnetic field can be or is generated at least partially, in particular completely, by means of the first component or by means of the magnetic device. When the magnetic field is provided, the second component, designed as a magnetic field-following component, follows the magnetic field, as a result of which the second component, and in particular the charging plug, can be or is driven by the first component and can therefore be or is moved translationally relative to the housing element.In other words, the components can be coupled or are coupled via the magnetic field, in particular electrically and / or magnetically, whereby a translational relative movement of the components can be effected or is effected, in particular in the axial direction of the charging socket or the receiving space. As a result, the charging plug can preferably be arranged at least partially in the receiving space and / or removed from the receiving space.

[0017] The fact that the second component or the magnetic structure is movable along with the magnetic field can be understood in particular to mean that the second component or the magnetic structure can be magnetically pulled along by the magnetic field or is pulled along by it. The magnetic field can in particular be referred to as a magnetic field. The magnetic field-generating component can in particular be referred to as a magnetic field-providing or magnetic field-generating component. This means, for example, that the magnetic field can be generated or is generated at least partially, in particular completely, by means of the first component.

[0018] The first magnetic flux can be understood in particular as a magnetic flux in an iron circuit of the charging socket. The second magnetic flux can be understood in particular as a magnetic flux in an iron circuit of the charging plug. In other words, the magnetic field can result or be capable of resulting in a magnetic flux in the iron circuit of the charging socket as well as in the iron circuit of the charging plug, and in particular in an air gap. The magnetic flux or fluxes can change depending on a total magnetic resistance, in particular from the respective iron circuit and the air gap. The change in the magnetic flux can lead to a reluctance force depending on a position, in particular the current position, of the charging plug relative to the charging socket, i.e. can at least partially cause the reluctance force.The reluctance force can be utilized, particularly according to the principle of a stepper motor, to move the charging plug translationally relative to the housing element of the charging socket. A change in the magnetic flux can be understood, in particular, as a change in the magnetic flux density, particularly in the air gap.

[0019] The air gap extends, particularly when the charging plug is arranged at least partially in the receiving space, in the radial direction of the charging socket, in particular of the receiving space, and / or in the radial direction of the charging plug between the magnetic structure and the magnetic device. Thus, the air gap can be understood in particular as an air gap between the charging socket and the charging plug, in particular between the iron circuits.

[0020] The translational movement can be understood, in particular, as a movement running along the axial direction of the charging socket, in particular of the receiving space. Preferably, by coupling the magnetic fields or by coupling the magnetic device to the magnetic structure, the charging plug can be moved relative to the housing element of the charging socket either along a first direction or along a second direction opposite to the first direction. The respective direction preferably runs along the axial direction of the charging socket, in particular of the receiving space. The first direction is, for example, a direction pointing toward the motor vehicle, in particular inward.Thus, by moving the charging plug along the first direction relative to the housing element, the charging plug can be connected, in particular electrically and / or mechanically, to the connection element of the charging socket, in particular via the second receiving element. For example, by moving the charging plug in the second direction relative to the housing element, the connection, in particular the electrical connection, between the charging plug and the connection element of the charging socket can be released or severed. The second direction is preferably a direction pointing away from the motor vehicle or outward.

[0021] The invention is based in particular on the following findings and considerations: In the case of a conventional charging socket, a manual insertion of the charging plug into the charging socket can usually be provided for an end customer of the motor vehicle, in particular a private one. Existing conventional robot systems for an automated plugging process can usually be based primarily on an industry standard for robot technology and can therefore be particularly complex and expensive. The particularly high effort or the particularly high costs of conventional robot systems can usually be explained by the fact that an optical method can be used to observe the plugging process and the plugging process can be carried out using correspondingly complex actuator systems which can move the charging plug, for example, in all six spatial coordinates with particularly high precision and at the same time with particularly high force.This can make conventional robot systems particularly difficult and / or particularly expensive.

[0022] In contrast, by means of the charging socket according to the invention, a direct force coupling between the charging plug and the charging socket can be effected or established via the magnetic device and the magnetic structure, wherein this force coupling preferably acts in the plug-in direction. The magnetic device is designed as a stator of an electrical machine or for an electrical machine. The magnetic structure of the charging plug is designed as a rotor of the electrical machine or for the electrical machine. This means that the magnetic device and the magnetic structure can act together as an electrical machine in order to move the charging plug relative to the housing element. In other words, the charging socket in the form of the magnetic device is expanded by an electromechanical linear step actuator, wherein the magnetic structure of the charging plug represents a rotor of the electrical machine.In particular, the electromechanical linear step actuator allows the charging plug, also simply referred to as the plug, to be both retracted and extended. The electrical machine formed by the magnetic device and the magnetic structure, or by the stator and the rotor, is preferably a stepper motor, in particular a linear stepper motor. This means that the charging socket and the charging plug can operate together according to the principle of a stepper motor, in particular a linear stepper motor, to move the charging plug translationally relative to the housing element.

[0023] By means of the charging socket according to the invention, the charging plug can be inserted into the receiving space of the charging socket in an automated, in particular semi-automated or fully automated manner, in particular in order to automatically charge the electrical energy storage device of the motor vehicle. In this case, the charging plug can, for example, be part of a robot system in order to carry out an automatic, in particular fully automatic, charging process of the electrical energy storage device of the motor vehicle. The force for inserting the charging plug into the receiving space can be generated by the magnetic field or the magnetic fluxes, for example by the stepper motor, instead of by means of a robot arm of the robot system. As a result, the robot system, in particular the robot arm, can be particularly small in dimension, whereby the weight and / or costs of the robot system can be kept particularly low. This makes it possible to achieve a particularly low-complexity plugging process.The robot system makes the charging process of the electrical energy storage device particularly convenient.

[0024] Alternatively, the charging socket according to the invention can be used for manual charging of the electrical energy storage device by a person. For example, the person can guide the charging plug into, particularly in the immediate vicinity of, the receiving space or insert the charging plug a short distance into the receiving space, whereby the charging plug can be automatically retracted by the magnetic field or the magnetic fluxes, particularly by the stepper motor. As a result, the person does not have to apply the force required to connect the receiving elements; instead, the force is generated by the magnetic field or the magnetic fluxes. This makes the charging process particularly pleasant and comfortable for the person.

[0025] Overall, it can be seen that the charging socket according to the invention, for example, using an existing interface in the motor vehicle, can provide a particularly low-complexity and / or cost-effective system with which the charging process of the electrical energy storage device can be automated, in particular partially automated or 100 percent automated. Furthermore, the charging process can be carried out with particularly low complexity using the charging socket according to the invention, in particular using a particularly small number of components. As a result, the manufacturing effort, in particular manufacturing costs, of the charging socket, in particular of the motor vehicle, or of the charging system can be kept particularly low.

[0026] For example, it is provided that the magnetic device can be coupled or is coupled via the first magnetic field for translationally moving the charging plug, in particular the receiving area of the charging plug, relative to the housing element with at least one magnetic field provided, in particular generated, by the magnetic structure of the charging plug, which can in particular be referred to as a second magnetic field.This means that the magnetic device can be coupled or is coupled via the first magnetic field or by means of the first magnetic field to the magnetic field provided, in particular generated, by the magnetic structure of the charging plug in order to move the charging plug, in particular the receiving area of the charging plug, translationally relative to the housing element of the charging socket, in particular to arrange the charging plug, for example selectively, in the receiving area, i.e. to move the charging plug at least partially into the receiving space, and / or to remove the charging plug, in particular the receiving area, from the receiving space, i.e. to move it out of the receiving space. The magnetic structure can in particular be referred to as a second component.

[0027] The magnetic field provided or generated by the magnetic structure of the charging plug can be understood, in particular, as a magnetic field generated directly by the magnetic structure of the charging plug or as a magnetic field generated by the magnetization of the magnetic structure by the magnetic device of the charging socket. This means that, for example, the magnetic structure can be magnetized or magnetized by means of the magnetic device or the first magnetic field in order to generate or provide the second magnetic field.

[0028] It is provided that the magnetic device has at least one laminated core. The laminated core can be understood, in particular, as an iron structure, which can be referred to in particular as a stator iron structure, for example, as a stepper motor stator iron structure. The laminated core can be formed in one piece or in multiple pieces. The laminated core can be referred to in particular as a stator laminated core. Preferably, the receiving space is bounded in its radial outward direction at least partially, in particular directly, by the laminated core.

[0029] The housing element is formed separately from the laminated core, for example. Alternatively, the laminated core can be the housing element itself, or the housing element can be partially formed by the laminated core. In particular, if the housing element is formed separately from the laminated core, the housing element is formed from plastic, for example.

[0030] The laminated core comprises a plurality of laminated core regions, in particular formed separately from one another or integrally connected to one another, by which the receiving space is partially, in particular directly, bounded in its radial direction toward the outside. In other words, the laminated core regions adjoin the receiving space toward the outside, in particular directly, in the radial direction of the receiving space. The laminated core regions can in particular be referred to as laminated core parts.

[0031] Furthermore, it is provided that the laminated core regions are arranged adjacent to one another in pairs and spaced apart from one another in pairs along the axial direction of the charging socket, in particular of the receiving space, and that at least one respective intermediate space is arranged between the laminated core regions spaced apart from one another in pairs, in particular in the axial direction of the charging socket or the receiving space. In other words, the respective intermediate space is arranged between two adjacent laminated core regions in the axial direction of the charging socket, in particular of the receiving space. This can be understood in particular as the following: the laminated core has a plurality of laminated core regions which are spaced apart from one another in the axial direction of the charging socket. Furthermore, a plurality of intermediate spaces is provided, wherein at least one of the intermediate spaces is arranged between two, in particular directly adjacent, laminated core parts.In particular, the intermediate space extends at least in the axial direction of the charging socket, in particular of the receiving space, between the, in particular adjacent, laminated core parts. For example, a tooth geometry, in particular for the stepper motor, can be effected or brought about by the laminated core areas. Each individual laminated core area can be a respective tooth of the tooth geometry, which can thus have multiple teeth. The intermediate space can be understood, in particular, as a groove.

[0032] In a further embodiment, it is provided that the magnetic device has at least one energizable, in particular electrical, winding, by means of which the first magnetic field of the magnetic device can be generated or is generated. In other words, at least one magnetic pole can be generated by means of the winding of the magnetic device. As a result, the first magnetic field for effecting the relative movement can be generated particularly easily and / or particularly reliably or effectively. The magnetic pole can be understood in particular as a magnetic pole of the magnetic device. Alternatively, the magnetic device is designed, for example, as a permanent magnet or as a component that can be magnetized by the magnetic field generated by the magnetic structure, whereby the first magnetic field can be generated or is generated, for example, by magnetizing the magnetic device by the second magnetic field.

[0033] The winding comprises, for example, at least one respective turn, in particular a plurality of respective turns. The winding can be understood in particular as a stator winding. The winding is made of copper, for example, which means that the winding can be referred to, for example, as a copper winding. The winding is preferably formed from a continuous conductor. The conductor can be understood in particular as an electrical conductor. The winding or a plurality of windings formed from the continuous conductor preferably form at least one coil. The coil can be understood in particular as an energizable or electrical coil. The winding can be understood in particular as a winding arrangement, in particular a winding phase and / or an electrical inductor. For example, the respective winding is held, in particular at least indirectly or directly, on the laminated core.

[0034] Energizing the winding can be understood, in particular, as meaning that electric current flows through the winding. This means that there is a flow of electric current in the winding. In particular, the charging plug can be moved translationally relative to the housing element by energizing the winding.

[0035] In a further embodiment, it is provided that the magnetic device has at least three windings that can be energized separately from one another, in particular at least three pairs of windings that can be energized separately from one another. It is provided that the magnetic field of the magnetic device can be generated or is generated by means of the windings, in particular by means of the pairs of windings. In other words, at least one magnetic pole, in particular a respective magnetic pole pair, can be generated by means of the windings, in particular by means of the respective pair of windings. This allows the charging plug to be moved particularly advantageously, in particular particularly smoothly, relative to the housing element. Furthermore, the movement can be effected in both directions, i.e. the arrangement of the charging plug in the receiving space and the removal of the charging plug from the receiving space.

[0036] The respective winding can be understood, in particular, as a respective winding arrangement, in particular a respective winding phase and / or a respective electrical inductance. For example, the respective winding is designed as a respective coil. The respective winding preferably has multiple turns. For example, the respective winding is made of or formed from copper.

[0037] The respective winding is formed, for example, from a respective conductor, in particular through which electrical current flows or can flow, preferably a continuous conductor. The respective conductor can be understood, in particular, as an electrical conductor. The conductors of the respective windings are preferably formed separately from one another. For example, the windings are electromagnetically and / or galvanically isolated from one another.

[0038] Energizing the respective winding can be understood, in particular, as meaning that electric current flows through the respective winding. This means that a respective flow of electric current is present in the respective winding. The charging plug is preferably movable in translation relative to the housing element by energizing the respective winding, in particular by generating the first magnetic field.

[0039] The magnetic structure of the charging plug can be designed as an iron structure, in particular a rotor-iron structure or a stepper motor-rotor-iron structure. The magnetic structure is, for example, magnetizable, i.e., designed as a magnetizable structure, or as a permanent magnet. Alternatively, the magnetic structure has, for example, at least one energizable, in particular electrical, winding, in particular a coil. Thus, it can be provided that the second magnetic field of the magnetic structure can be or is generated by magnetization, by the permanent magnet, or by the energizable winding or coil.

[0040] In a further embodiment, it is provided that at least one respective intermediate element made of a non-magnetic, in particular non-magnetizable, material is arranged in the respective intermediate space. In other words, the respective intermediate element made of the non-magnetic or non-magnetizable material is arranged between two adjacent laminated core regions. The receiving space is preferably partially, in particular directly, delimited in its radial outward direction by the respective intermediate element. In other words, the intermediate elements adjoin the receiving space to the outside, in particular directly, in the radial direction of the receiving space. The intermediate elements can be coupled to one another in a particularly advantageous, in particular particularly effective and / or particularly good, manner.This allows the charging plug to be moved particularly advantageously, in particular particularly precisely and / or particularly smoothly, relative to the housing element. Preferably, the intermediate element is formed at least partially, in particular predominantly or entirely, from a plastic. Therefore, the intermediate element can be referred to in particular as a plastic element.

[0041] It is preferably provided that the intermediate elements extend further inwards in the radial direction of the receiving space than the laminated core regions. This means that the intermediate elements project inwards beyond the laminated core regions in the radial direction of the receiving space. In other words, the air gap extending in the radial direction between the charging plug, in particular the receiving region, and the laminated core can be at least partially brought about or brought about or formed or formed. This means that when the charging plug, in particular the receiving region, is arranged in the receiving space, and in particular when the charging plug or the charging region rests, in particular directly, against the intermediate element, the air gap, also referred to as a gap, can be formed or is formed between the charging plug, in particular the receiving region, and the laminated core parts.This air gap can be referred to, in particular, as the working air gap. By creating or ensuring the air gap, a movement of the charging plug relative to the housing element in the radial direction of the receiving space can be particularly reliably prevented when the charging plug is positioned in the receiving space. This can, for example, enable a particularly smooth movement of the charging plug relative to the housing element. This allows the receiving element of the charging plug to be connected to the connection element of the charging socket particularly conveniently or particularly comfortably.

[0042] In a further embodiment, the charging socket has at least one wall region in which at least one opening is arranged. In other words, the opening is at least partially, in particular completely, defined or formed by the wall region. The wall region is, for example, part of the housing element and / or the laminated core. The opening can be referred to in particular as a through-opening or receiving opening.

[0043] It is preferably provided that the charging plug, in particular the receiving area, can be arranged at least partially, in particular predominantly or completely, in the receiving space via the opening. In other words, the charging plug, in particular the charging area can be inserted at least partially into the receiving space via the opening, in particular in order to arrange the charging plug in the receiving space or to connect the receiving element of the charging plug to the connection element of the charging socket. The opening is preferably arranged on a side of the receiving space opposite the connection element. It is preferably provided that the charging plug, which is arranged at least partially in the receiving space, can be removed from the receiving space via the opening.

[0044] Preferably, the wall region has at least one insertion bevel, in particular for inserting or arranging the charging plug in the receiving space. In other words, the wall region extends obliquely to a lateral surface that delimits the receiving space outward in its radial direction and is formed by the housing element and / or the laminated core and / or the intermediate element. The insertion bevel can be understood, in particular, as a phase. Thanks to the insertion bevel, the charging plug can be arranged in the receiving space with particularly little effort, conveniently, and / or particularly precisely.Furthermore, for example, if the receiving space or the opening is not correctly hit when arranging the charging plug in the receiving space, a particularly precise arrangement of the charging plug in the receiving space can still be ensured, since the charging plug can be guided by the insertion bevel, for example, into its position, in particular intended in the receiving space.

[0045] A second aspect of the invention relates to a charging connector for a charging device for charging an electrical energy storage device of an electrically driven motor vehicle. Advantages and advantageous embodiments of the first aspect of the invention are to be regarded as advantages and advantageous embodiments of the second aspect of the invention, and vice versa.

[0046] The charging plug has at least one receiving area, which can be arranged or is arranged at least partially, in particular predominantly or completely, in a receiving space of a charging socket of the motor vehicle, which is at least partially delimited by a housing element. The charging socket is a charging socket according to the first aspect of the invention. The housing element can be understood, in particular, as a housing element of the charging socket.

[0047] In order to be able to charge the electrical energy storage device of the motor vehicle particularly conveniently, in particular electrically, it is provided according to the invention that the charging plug has at least one magnetic structure which can be coupled to at least one magnetic field generated by a magnetic device of the charging socket for the translational movement of the charging plug relative to the housing element of the charging socket via a magnetic flux resulting in the magnetic structure.

[0048] A third aspect of the invention relates to an arrangement of a charging plug in a receiving space of a charging socket of an electrically driven motor vehicle. The receiving space is at least partially delimited by a housing element of the charging socket. Advantages and advantageous embodiments of the first aspect and the second aspect of the invention are to be regarded as advantages and advantageous embodiments of the third aspect of the invention, and vice versa.

[0049] In order to be able to charge an electrical energy storage device of the motor vehicle particularly conveniently, in particular electrically, the invention provides that the charging plug has at least one magnetic structure and the charging socket has at least one magnetic device. It is provided that at least one magnetic field can be generated or is generated by means of the magnetic device, via which the magnetic device of the charging socket can be coupled or is coupled to a magnetic flux resulting in the magnetic structure of the charging plug for translationally moving the charging plug relative to the housing element.

[0050] The magnetic device has a laminated core having a plurality of laminated core regions by which the receiving space is partially delimited outwards in its radial direction, wherein the laminated core regions are arranged adjacent to one another in pairs and spaced apart from one another in pairs along an axial direction of the charging socket, and a respective intermediate space is arranged between the laminated core regions spaced apart from one another in pairs.

[0051] A fourth aspect of the invention relates to a method for arranging a charging plug in a receiving space of a charging socket of an electrically driven motor vehicle, said receiving space being at least partially delimited by a housing element. The housing element can be understood, in particular, as a housing element of the charging socket. Advantages and advantageous embodiments of the first aspect, the second aspect, and the third aspect of the invention are to be regarded as advantages and advantageous embodiments of the fourth aspect of the invention, and vice versa.

[0052] In order to be able to charge an electrical energy storage device of the motor vehicle particularly conveniently, it is provided according to the invention that at least one magnetic field is generated by means of at least one magnetic device of the charging socket, via which magnetic field the magnetic device of the charging socket is coupled to at least one magnetic flux resulting in a magnetic structure of the charging plug for translationally moving the charging plug relative to the housing element. In other words, the magnetic field is generated by means of the magnetic device of the charging socket and a magnetic flux results in the magnetic structure, in particular from the magnetic field, wherein the magnetic device and the magnetic structure are coupled to one another via the magnetic field, in particular via the magnetic flux, as a result of which the charging plug is moved translationally relative to the housing element.

[0053] The magnetic device has a laminated core having a plurality of laminated core regions by which the receiving space is partially delimited outwards in its radial direction, wherein the laminated core regions are arranged adjacent to one another in pairs and spaced apart from one another in pairs along an axial direction of the charging socket, and a respective intermediate space is arranged between the laminated core regions spaced apart from one another in pairs.

[0054] Further features of the invention emerge from the claims, the figures, and the description of the figures. The features and combinations of features mentioned above in the description, as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures, can be used not only in the respective specified combination, but also in other combinations or on their own.

[0055] The invention will now be explained in more detail using a preferred embodiment and with reference to the drawings. They show: Fig. 1 is a schematic partial sectional view of an arrangement according to the invention; and Fig. 2 a schematic partial sectional view of a charging socket according to the invention and a charging plug according to the invention; and Fig. 3 is a schematic partial sectional view of an arrangement according to the invention for illustrating further sectional views; and Fig. 4 a schematic further partial sectional view of an arrangement according to the invention; and Fig. 5 a schematic further partial sectional view of an arrangement according to the invention; and Fig. 6 a schematic further partial sectional view of an arrangement according to the invention.

[0056] In the figures, identical or functionally identical elements are provided with the same reference symbols.

[0057] Fig. 1 shows in a schematic partial sectional view an arrangement 1 of a charging plug 2 in a receiving space 3 of a charging socket 4 of an electrically driven motor vehicle. Fig. 2 shows a schematic partial sectional view of the charging plug 2 and the charging socket 4. Fig. 2 shows a sectional view SS which runs between section reference points S which are shown in Fig. 1 are outlined.

[0058] The charging socket has at least one housing element 5, which at least partially, in particular predominantly or completely, delimits the receiving space 3. The receiving space 3 is designed or provided for arranging the charging plug 2. The charging plug 2 has at least one receiving area 6, which can be arranged or is arranged in the receiving space 3 of the charging socket 4, in particular for charging an electrical energy storage device of the motor vehicle. Fig. 1, at least the receiving area 6 of the charging plug 2 is arranged in the receiving space 3 and in Fig. 2 illustrates the arrangement or insertion of at least the receiving area 6 of the charging plug 2 into the receiving space 3.

[0059] In the exemplary embodiment, the charging socket 4 has at least one first receiving element, which can be referred to in particular as the first connection element. Furthermore, the charging plug 2 has at least one second receiving element, which can be referred to in particular as the second connection element 7. The connection elements can be connected or are connected to one another for electrically charging the electrical energy storage device of the motor vehicle. In the exemplary embodiment, several of the connection elements are provided.

[0060] In order to be able to charge the electrical energy storage device of the motor vehicle with particularly little effort, and in particular particularly conveniently, the charging plug 2 has at least one magnetic structure 8, in particular in the receiving area 6, and the charging socket 4 has at least one magnetic device 9. By means of the magnetic device 9, at least one magnetic field 10 can be generated, via which the magnetic device 9 of the charging socket 4 can be or is coupled to a magnetic flux 12 resulting in particular from the magnetic field 10 in the magnetic structure 8 of the charging plug 2 for the translational movement 11 of the charging plug 2 relative to the housing element 5.In other words, the movement 11 of the charging plug 2 relative to the housing element 5 of the charging socket 4 can be effected or brought about according to an electromotive principle, for example according to a stepper motor principle, in which the charging socket 4 or the magnetic device 9 acts as a stator and the charging plug 2 or the magnetic structure 8 acts as a rotor. This means that the charging socket 4 is designed as the stator of an electrical machine, in particular a stepper motor, and that the charging plug 2 is designed as the rotor of the electrical machine, in particular the stepper motor. This can cause an automatic charging plug retraction and / or extraction. The movement 11 preferably runs along an axial direction 25 of the charging socket 4, in particular of the receiving space 3.

[0061] Furthermore, a method for arranging the charging plug 2 in the receiving space 3 of the charging socket 4 is disclosed, in which the magnetic field 10 is generated by means of the magnetic device 9 of the charging socket 4, via which field the magnetic device 9 of the charging socket 4 is coupled to the magnetic flux 12 resulting in the magnetic structure 8 of the charging plug 2 for the translational movement 11 of the charging plug 2 relative to the housing element 5.

[0062] A magnetic flux of the magnetic field 10 is in Fig. 1 in the charging socket 4 by means of arrows 13. The magnetic flux 12 resulting in the magnetic structure 8 is shown in Fig. 1 is outlined by arrows 14.

[0063] For example, the receiving space 3 is at least partially, in particular directly, delimited outwardly in its radial direction 24 by the magnetic device 9. When the charging plug 2 is arranged in the receiving space 3, the radial direction 24 of the receiving space 3, in particular of the charging socket 4, preferably runs parallel to a radial direction of the charging plug 2 and / or the axial direction 25 of the charging socket 4, in particular of the receiving space 3, preferably runs parallel to an axial direction of the charging plug 2.

[0064] In the exemplary embodiment, the magnetic device 9 has at least three separately energizable windings 15, by means of which the magnetic field 10 of the magnetic device 9 can be generated or is generated. The windings 15 are preferably designed as, in particular, electrical, coils. In the exemplary embodiment, the magnetic device 9 has at least three, in particular separately energizable, coil pairs 16, 17, 18. As shown in Fig. 1, the coil pairs 16, 17, 18 are preferably positioned on the circumference of the charging socket 4.

[0065] In the exemplary embodiment, the magnetic device 9 of the charging socket 4 has at least one laminated core 19. The laminated core 19 is formed, for example, at least in part, in particular predominantly or entirely, from iron or an iron alloy. The laminated core 19 is, for example, annular, whereby the laminated core 19 can be understood, in particular, as an iron ring. The laminated core 19 can be understood, in particular, as a stator iron structure, for example, a stepper motor stator iron structure.

[0066] The housing element 5 is formed separately from the laminated core 19, for example. For example, the housing element 5 is formed at least partially, in particular predominantly or entirely, from plastic. The housing element 5 is formed, for example, in an annular shape, i.e., as a plastic ring. Thus, the laminated core 19 is integrated, for example, into the plastic ring of the charging socket 4.

[0067] In the exemplary embodiment, the charging socket 4 has at least three, in particular electrical and / or magnetic, pole pairs 20, 21, 22. The pole pairs 20, 21, 22 are, for example, part of the laminated core 19. The pole pairs 20, 21, 22 can be connected to one another for the magnetic flux via the laminated core 19 or the iron ring. In particular, the respective pole pair 20, 21, 22, i.e., a respective pole of the respective pole pair 20, 21, 22, can be generated or is generated by a respective one of the coil pairs 16, 17, 18, i.e., by a respective coil of the respective coil pair 16, 17, 18.

[0068] In the exemplary embodiment, the laminated core 19 has a plurality of laminated core regions 23, by which the receiving space 3 is partially, in particular directly, delimited outwards in its radial direction 24. The laminated core regions 23 are arranged adjacent in pairs and spaced from one another in pairs along an axial direction 25 of the charging socket 4. A respective intermediate space 26, in particular a respective groove, is arranged between the laminated core regions 23 spaced from one another in pairs. Thus, a plurality of the intermediate spaces 26 are provided. In the exemplary embodiment, a respective intermediate element 27 made of a non-magnetic material is arranged in each intermediate space 26, by which intermediate element the receiving space 3 is partially, in particular directly, delimited outwards in its radial direction 24.The non-magnetic or non-magnetizable material can be understood in particular as an insulator, for example a magnetic one.

[0069] The intermediate elements 27 are made of plastic, for example. Overall, it can be seen that a tooth geometry comprising a plurality of teeth is formed or will be formed by the laminated core regions 23. For example, the intermediate elements 27 are cast with the laminated core 19, in particular with the laminated core regions 23. Thus, the intermediate elements 27 can be cast with plastic.

[0070] In the exemplary embodiment, the magnetic structure 8 of the charging plug 2 has at least one laminated core 28, which can be referred to in particular as a second laminated core 28. The second laminated core 28 is formed, for example, at least in part, in particular predominantly or entirely, from iron or an iron alloy. The second laminated core 28 is, for example, annular. The second laminated core 28 can be understood in particular as a rotor-iron structure, for example a stepper motor-rotor-iron structure.

[0071] For example, the charging plug 2 has at least one housing element 29, which is formed in particular separately from the second laminated core 28 and can be referred to in particular as a second housing element. The second housing element 29 is formed, for example, at least in part, in particular predominantly or entirely, from plastic. For example, the second housing element 29 is annular, i.e., formed, for example, as a plastic ring. Thus, the second laminated core 28 is integrated, for example, in the plastic ring of the charging plug 2, in particular circumferentially.

[0072] For example, the second laminated core 28 of the charging plug 2 has a plurality of laminated core regions 30, which can in particular be referred to as second laminated core regions 30. Preferably, the respective second laminated core region 30 has at least one respective outer surface of the charging plug 2 that points outwards in the radial direction of the charging plug 2. Thus, the charging plug 2 is delimited in its radial direction, for example, at least partially outwards, in particular directly, by the second laminated core regions 30. In the exemplary embodiment, the second laminated core regions 30 of the charging plug 2 are arranged adjacent in pairs and spaced from one another in pairs along an axial direction of the charging plug 2. Preferably, a respective intermediate space 31, in particular a respective groove, is arranged between the second laminated core regions 30 of the charging plug 2 that are spaced from one another in pairs.The respective intermediate space 31 can in particular be referred to as the second respective intermediate space 31.

[0073] In the respective second intermediate space 31, in the exemplary embodiment, a respective intermediate element 32 made of a non-magnetic, and in particular non-magnetizable, material, for example plastic, is arranged, which can in particular be referred to as the second respective intermediate element 32. For example, the charging plug 2 is partially delimited in its radial outward direction by the respective intermediate element 32. Thus, the respective intermediate element 32 has, for example, a respective outer surface facing outward in the radial direction of the charging plug 2.

[0074] For example, the second intermediate elements 32 are encapsulated with the second laminated core 28 of the charging plug 2. Thus, the second intermediate element 32 can be a plastic encapsulation.

[0075] Overall, it can be seen that a tooth geometry comprising a plurality of teeth is formed or will be formed by the second laminated core regions 30 of the charging plug 2. Thus, the charging plug 2 has, for example, an iron circle with a tooth geometry required in particular for the stepper motor.

[0076] As in Fig. 2, it is provided, for example, that distances extending in the axial direction 25 of the charging socket 4 or the charging plug 2 between two respective, in particular directly adjacent, ones of the first and / or second laminated core regions 23, 30 are each constant, that is to say of the same size.

[0077] In a further embodiment, it is provided that the intermediate elements 27 extend further inwards in the radial direction 24 of the receiving space 3 than the laminated core regions 23 of the charging socket 4. Furthermore, it is provided in the exemplary embodiment that the second intermediate elements 32 of the charging plug 2 extend further outwards in the radial direction of the charging plug 2 than the second laminated core regions 30 of the charging plug 2. Thus, a working air gap can be ensured by means of the intermediate elements 27 and / or the second intermediate elements 32, that is to say via the plastic encapsulation.

[0078] Fig. 3 shows a further schematic partial sectional view of the arrangement 1, wherein in Fig. 1 Section reference points A, B and C are sketched. Fig. 4, Fig. 5 and Fig. 6 shows a respective partial sectional view of the arrangement 1. In Fig. 4 shows a first partial section AA, which runs between the section reference points A. In Fig. 5 shows a second partial section BB, which runs between section reference points B. In Fig. 6 shows a third partial section CC, which runs between the section reference points C.

[0079] As can be seen from the Fig. 4, Fig. 5 and Fig. 6, in the exemplary embodiment, the laminated core regions 23 of the charging socket 4 are arranged offset from one another in the respective partial sections AA, BB, CC, in the radial direction 24 of the charging socket 4. This means that the laminated core regions 23 in the respective pole pair 20, 21, 22 or in the region of the respective pole pair 20, 21, 22 are arranged offset in the radial direction 24 relative to the other pole pairs 20, 21, 22. As a result, the movement 11 of the charging plug 2 relative to the housing element 5 can be carried out particularly advantageously, and in particular optionally in two opposite directions.

[0080] At the Fig. 4, the position of the charging plug 2, in particular the laminated core areas 30, relative to the charging socket 4, in particular the laminated core areas 23, the translational movement of the charging plug 2 may not be possible when a first of the pole pairs 20 is energized. Thus, in Fig. 4 no runner movement is illustrated. In the Fig. 5, the position of the charging plug 2, in particular the second laminated core regions 30, relative to the charging socket 4, in particular the laminated core regions 23, when a second of the pole pairs 21 is energized, the translational movement of the charging plug 2 can take place in a first direction 33. As a result, the charging plug 2 can be arranged at least partially in the receiving space 3 and, in particular, can be connected via its connecting element, in particular electrically, to the connecting element of the charging socket 4. Thus, in Fig. 5 shows in particular a retracting runner movement. Fig. 6, the position of the charging plug 2, in particular the second laminated core regions 30, relative to the charging socket 4, in particular the laminated core regions 23, when the third of the pole pairs 22 is energized, the translational movement of the charging plug 2 can be effected in a second direction 34, which runs opposite to the first direction 33. As a result, the charging plug 2 can be removed from the receiving space 3. In particular, the respective connection element of the charging plug 2 can thereby be separated from the connection element of the charging socket 4. Thus, in Fig. 6 illustrates a pushing-out runner movement.

[0081] In the exemplary embodiment, it is provided that the housing element 5 has at least one wall region 35 in which an opening 36 is arranged, via which the charging plug 2 can be arranged in the receiving space 3, wherein the wall region 35 has at least one insertion bevel 37. Furthermore, it is provided in the exemplary embodiment that the second housing element 29 of the charging plug 2 has at least one wall region 38, which has at least one second insertion bevel 39, in particular one designed to correspond to the insertion bevel 37. List of reference symbols 1 arrangement 2 charging plugs 3 Recording room 4 Charging socket 5 Housing element 6 Recording area 7 Connection element 8 Magnetic structure 9 Magnetic device 10 magnetic field 11 Movement 12 magnetic flux 13 Arrow 14 Arrow 15 windings 16 first pair of coils 17 second pair of coils 18 third pair of coils 19 sheet package 20 first pole pair 21 second pole pair 22 third pole pair 23 sheet metal package parts 24 radial direction 25 axial direction 26 space 27 Intermediate element 28 second sheet package 29 second housing element 30 second sheet package part 31 second space 32 second intermediate element 33 first direction 34 second direction 35 wall area 36 Opening 37 insertion bevel 38 Wall area 39 second insertion bevel A cutting reference point B Cutting reference point C Cutting reference point AA first partial section BB second partial cut CC third partial cut

Claims

[1] Charging socket (4) for an electrically driven motor vehicle, with a receiving space (3) at least partially delimited by a housing element (5) for arranging a charging plug (2) and with at least one magnetic device (9), by means of which at least one magnetic field (10) can be generated, via which the magnetic device (9) can be coupled to at least one magnetic flux (12) resulting in a magnetic structure (8) of the charging plug (2) for translational movement (11) of the charging plug (2) relative to the housing element (5), characterized byin that the magnetic device (9) has a laminated core (19) which has a plurality of laminated core regions (23) by which the receiving space (3) is partially delimited outwards in its radial direction (24), wherein the laminated core regions (23) are arranged adjacent to one another in pairs and spaced apart from one another in pairs along an axial direction (25) of the charging socket (4), and a respective intermediate space (26) is arranged between the laminated core regions (23) spaced apart from one another in pairs. [2] Charging socket (4) according to claim 1, characterized by that the magnetic device (9) has at least one energizable winding (15) by means of which the magnetic field (10) of the magnetic device (9) can be generated. [3] Charging socket (4) according to claim 1 or 2, characterized by that the magnetic device (9) has at least three separately energizable windings (15) by means of which the magnetic field (10) of the magnetic device (9) can be generated. [4] Charging socket (4) according to one of the preceding claims, characterized by that in each of the intermediate spaces (26) there is arranged a respective intermediate element (27) made of a non-magnetic material, by which the receiving space (3) is partially delimited outwards in its radial direction (24). [5] Charging socket (4) according to claim 4, characterized by that the intermediate elements (27) extend further inwards in the radial direction (24) of the receiving space (3) than the laminated core areas (23). [6] Charging socket (4) according to one of the preceding claims, characterized by a wall region (35) in which an opening (36) is arranged, via which the charging plug (2) can be arranged in the receiving space (3), wherein the wall region (35) has an insertion bevel (37). [7] Charging plug (2) for a charging device for charging an electrical energy storage device of an electrically driven motor vehicle, with at least one receiving area (6) which can be arranged at least partially in a receiving space (3) of a charging socket (4) of the motor vehicle according to one of the preceding claims, which receiving space (3) is at least partially delimited by a housing element (5), wherein the charging plug (2) has at least one magnetic structure (8) which can be coupled to at least one magnetic field (10) generated by a magnetic device (9) of the charging socket (4) for the translational movement (11) of the charging plug (2) relative to the housing element (5) of the charging socket (4) via a magnetic flux (12) resulting in the magnetic structure (8). [8] Arrangement (1) of a charging plug (2) in a receiving space (3) of a charging socket (4) of an electrically driven motor vehicle, in which the receiving space (3) is at least partially delimited by a housing element (5) of the charging socket (4), the charging plug (2) has at least one magnetic structure (8) and the charging socket (4) has at least one magnetic device (9) by means of which at least one magnetic field (10) can be generated, via which the magnetic device (9) of the charging socket (4) can be coupled to a magnetic flux (12) resulting in the magnetic structure (8) of the charging plug (2) for translational movement (11) of the charging plug (2) relative to the housing element (5), characterized byin that the magnetic device (9) has a laminated core (19) which has a plurality of laminated core regions (23) by which the receiving space (3) is partially delimited outwards in its radial direction (24), wherein the laminated core regions (23) are arranged adjacent to one another in pairs and spaced apart from one another in pairs along an axial direction (25) of the charging socket (4), and a respective intermediate space (26) is arranged between the laminated core regions (23) spaced apart from one another in pairs. [9] Method for arranging a charging plug (2) in a receiving space (3) of a charging socket (4) of an electrically driven motor vehicle, said receiving space (3) being at least partially delimited by a housing element (5), in which at least one magnetic field (10) is generated by means of at least one magnetic device (9) of the charging socket (4), via which field the magnetic device (9) of the charging socket (4) is coupled to at least one magnetic flux (12) resulting in a magnetic structure (8) of the charging plug (2) for translationally moving (11) the charging plug (2) relative to the housing element (5), wherein the magnetic device (9) has a laminated core (19) which has a plurality of laminated core regions (23) by which the receiving space (3) is partially delimited outwards in its radial direction (24),and wherein the laminated core regions (23) are arranged in pairs adjacent to one another and spaced apart from one another along an axial direction (25) of the charging socket (4), and a respective intermediate space (26) is arranged between the laminated core regions (23) spaced apart from one another.

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