Emergency release device for unlocking a charging plug in a charging socket as well as locking device and charging socket with such an emergency release device

Abstract

Emergency release device (1) for a locking device (2) for locking a charging plug in a charging socket (3), comprising a lever (10) mounted about a rotation axis (A), which is connected at its pivot point (11) located on the rotation axis (A) in a rotationally fixed manner to a lever-side first driver (20) and is rotatable about the rotation axis (A) between a basic position and an emergency release position, and comprising a gear (40) mounted about the rotational axis (A) or a further rotational axis, which is connected in a rotationally fixed manner to a second driver (30) on the gear side and is rotatable about its rotational axis (A) between a locking position for locking the charging plug in the charging socket (3) and a release position for releasing the charging plug in the charging socket (3), wherein the lever (10) together with the first driver (20) is rotatable between its basic position and its emergency release position independently of the second driver (30) when the gear (40) is in the release position, wherein the gear wheel (40) together with the second driver (30) is rotatable between its release position and its blocking position independently of the first driver (20) when the lever (10) is in the basic position, wherein the first driver (20) is designed to transmit a rotation of the lever (10) during a movement of the lever (10) from the basic position into the emergency release position with the gear (40) in the locked position via the second driver (30) to the gear (40) and to move the latter from the locked position into the released position and wherein the second driver (30) is designed to transmit a rotation of the gear (40) during a movement of the gear (40) from the release position into the blocking position when the lever (10) is in the emergency release position via the first driver (20) to the lever (10) and to move the lever from the emergency release position into the basic position.

Description

The invention relates to an emergency unlocking device for unlocking a charging plug in a charging socket, a locking device with such an emergency unlocking device and a charging socket with such a locking device or such an emergency unlocking device.In particular in the case of battery electric vehicles (BEV) and plug-in hybrid electric vehicles (PHEV), unintentional and also unauthorized unplugging of a charging plug from the vehicle or optionally also from the charging station or the wallbox is to be prevented.For this purpose, a wide variety of locking devices are already known in the prior art, in which the charging plug is blocked in the charging socket by a latch, which is designed as a bolt, for example, so that the charging plug is prevented from being pushed out of the charging socket with the latch in its blocking position and is made possible only with the latch in its release position.For moving the latches between the release position and the blocking position, electrical actuators such as electric motors are usually provided, alternative drives or actuators such as magnetic or pneumatic actuation also being possible in principle.Regardless of the type of actuator, however, it may happen that the actuator itself or its energy supply fails, as a result of which a latch which is in the blocking position cannot be moved at least by the actuator into the release position and the charging plug could accordingly not be released.However, since it must also be possible to unlock the charging plug in such situations, such locking devices already provide mostly emergency unlocks which are intended to enable manual unlocking or manual movement of the bolt from the locked position into the released position.Such locking devices are known, for example, from the documents DE 10 2010 003 545 A1, DE 10 2011 050 783 A1, DE 10 2017 123 211 A1, CN 111326916 A, CN 213026762 U and WO 2023 / 026163 A1.In the case of such locking devices having an emergency release, however, a reset possibility must be provided, so that the emergency release can therefore be reset to its original position after a release. At the same time, however, the emergency unlocking should not interfere with or adversely affect the conventional operation of the locking device.Depending on the respective implementation, the solutions known in the prior art therefore have various disadvantages.If, for example, a lever which can be actuated by a Bowden cable is provided and which only acts on the bolt via a gearwheel upon actuation, it is firstly problematic that the gearwheel can become jammed with the bolt when it is coupled into the bolt or into an element acting on the bolt. If, however, the gearwheel or the lever were constantly operatively connected to the bolt, the lever would move constantly with the bolt, which would likewise be disadvantageous. In addition, a spring must be provided for restoring the lever, which spring moves the lever out of engagement with the latch or with the element acting on the latch again during the restoring into the basic position, so that work would have to be performed against the spring force in this case.The object of the invention is therefore to overcome the aforementioned disadvantages and to provide an emergency release device which is improved compared to the prior art or a locking device and a charging socket with such an emergency release device, by means of which simple and reliable release in the event of an emergency is possible and which can be easily reset into an unactuated basic position.This object is achieved by the combination of features according to claim 1.According to the invention, therefore, an emergency unlocking device for a locking device for locking a charging plug in a charging socket is proposed, wherein the charging socket is preferably a charging socket on or in a vehicle or on or in a charging station for a vehicle. According to the invention, the emergency release device has a lever mounted about an axis of rotation and a gearwheel mounted about the axis of rotation or a further axis of rotation. The lever is connected in a rotationally fixed manner at its pivot point lying on the axis of rotation to a lever-side first driver and is rotatable about the axis of rotation between a basic position and an emergency unlocking position. In this case, in order to achieve the emergency release position from the basic position, no complete rotation of the lever about the axis of rotation is necessary. For example, it can be provided that the emergency release position can be reached from the basic position by a rotation of the lever by approximately 90°. Furthermore, the gearwheel is connected in a rotationally fixed manner to a second driver on the gearwheel side and is rotatable about its axis of rotation between a blocking position for locking the charging plug in the charging socket and a release position for releasing the charging plug in the charging socket.It is essential to the invention that the lever and the gearwheel are operatively connected in particular exclusively via the two drivers and are not fixed to one another in a rotationally fixed manner, wherein the drivers can also be designated as driver elements or driver bodies in each case. Instead, it is provided that the lever together with the first driver can be rotated between its basic position and its emergency unlocking position when the gear wheel is in the release position independently of the second driver, i.e. without transmission of a torque or a force from the first driver to the second driver. Analogously, when the lever is in the basic position, the gearwheel can be rotated together with the second driver between its release position and its blocking position independently of the first driver, i.e. again without transmission of a torque or a force from the second driver to the first driver. Here, rotating between two positions is understood to mean in particular the rotation or movement from the first of the two positions into the second of the two positions and also from the second of the two positions into the first of the two positions. This first allows, on the one hand, a rotation of the lever in the event of an incorrectly triggered emergency unlocking to not influence the gearwheel which is already in the release position or a bolt which is already in the release position, and, on the other hand, a rotation of the gearwheel in the event of an intended operation for locking or locking and unlocking or unlocking the bolt or the charging plug in the charging socket not to influence the lever which is in its basic position, so that a simple and low-resistance intended operation of the bolt or a locking device is possible.It is now further provided according to the invention that the first driver is configured to transmit a rotation of the lever during a movement of the lever from the basic position into the emergency unlocking position with the gearwheel located in the locked position or in an intermediate position between the locked and the released position via the second driver to the gearwheel and to move the latter from the locked position or the intermediate position into the released position, so that therefore upon triggering or actuating the emergency unlocking the bolt is moved into the release position, in which the charging plug is unlocked or unlocked in the charging socket and is thus released for unplugging.Since a simple resetting of the emergency unlocking must be possible both in the case of a correct emergency unlocking and in the case of a faulty emergency unlocking, in which case the bolt was already in its release position, it is further provided according to the invention that the second driver is designed to transmit a rotation of the gearwheel during a movement of the gearwheel from the release position into the locking position via the first driver when the levers are in the emergency unlocking position or in an intermediate position between the emergency unlocking position and the basic position, and to move said lever from the emergency unlocking position or the intermediate position into the basic position, so that a released emergency unlocking is reset again during the subsequent regular locking of the bolt.Consequently, the first driver and the second driver cooperate similar to a freewheel, wherein a freewheel enables the free or independent rotation of its elements in a first rotational direction and locks them in a second rotational direction, so that the elements of the freewheel are only rotatable together in the second rotational direction. Deviating from this, the two cooperating drivers allow an independent rotation of the drivers only over a predetermined angular range, but in both rotational directions, which is also dependent on their respective position.For the transmission of force or torque, it is preferably provided that both the first driver and the second driver each have at least one driver tooth, wherein these preferably each have exactly two driver teeth. These are designed to engage with one another, i.e. to abut one another, during a movement of the lever from the basic position into the emergency unlocking position when the gear is in the locking position, in particular via a respective tooth flank running parallel to the axis of rotation, and to transmit the movement of the lever from the first driver via the second driver to the gear and, during a movement of the gear from the release position into the locking position, to engage with one another, i.e. to abut one another, in particular via the tooth flanks when the lever is in the emergency unlocking position, and to transmit the movement of the gear from the second driver via the first driver to the lever.With regard to the driver teeth, it is preferably provided that the at least one driver tooth or the driver teeth of the first driver extend from its rotational axis outwards in the radial direction and the second driver is designed as a sleeve which extends at least in sections around the first driver and from which the at least one driver tooth or the driver teeth of the second driver extend inwards in the radial direction.In a functional reversal to this, it can alternatively be provided that the at least one driver tooth or the driver teeth of the second driver extend from its axis of rotation outwards in the radial direction and the first driver is designed as a sleeve which extends at least in sections around the second driver and from which the at least one driver tooth or the driver teeth of the first driver extend inwards in the radial direction.Although the driver teeth are each preferably designed as projections extending at least partially in the direction of the axis of rotation in the radial direction, it can also be provided that the driver teeth of a driver extend parallel to the axis of rotation and the associated driver is designed like a cage by the driver teeth extending parallel to the axis of rotation. Between the driver teeth extending parallel to the axis of rotation and in particular cylindrical, the driver teeth of the respective other driver can then extend.In addition to the aforementioned cage- or sleeve-shaped solutions for one of the drivers, it can also be provided as an alternative that the first driver and the second driver are arranged axially adjacent along the axis of rotation and axially overlap in an axial section lying between the drivers by their driver teeth, in particular with respect to their axial extension.Although the lever and the associated first driver can be formed in multiple parts and fixed to one another, it is preferable as a solution that can be easily implemented that they are formed integrally and / or integrally with one another.However, if it is to be taken into account, in particular for use in different applications or different installation situations, that the lever must be able to have different alignments or rotational positions with respect to the gearwheel in its basic position or in its emergency unlocking position, it can be provided that a first adapter is arranged between the lever and the first driver, said first adapter connecting the latter to one another in a rotationally fixed manner and having a second adapter part corresponding to the first adapter part. In this case, the lever is connected in a rotationally fixed manner to the first adapter part and the first driver is connected in a rotationally fixed manner to the second adapter part, wherein these can each be formed integrally with the respective adapter part, for example. In order to now allow different positionings of the lever with respect to the first driver, the two adapter parts of the first adapter can be joined in a plurality of rotational positions which differ from one another. Thus, the two adapter parts can have, for example, a toothing which corresponds to one another, so that they can be joined together in a multiplicity of rotational or angular positions determined by the toothing.Furthermore, the gearwheel and the second driver can likewise be formed integrally and / or integrally with one another.With regard to the use in different applications or different installation situations, it also applies analogously in a functional reversal that a second adapter can be arranged between the gearwheel and the second driver, said second adapter connecting the latter to one another in a rotationally fixed manner, said second adapter in turn having a first adapter part and a second adapter part corresponding to the first adapter part. The gearwheel is connected in a rotationally fixed manner to the first adapter part and the second driver is connected in a rotationally fixed manner to the second adapter part, wherein these can be formed integrally with one another for this purpose, for example. Again, it applies that the two adapter parts of the second adapter can be joined together in a plurality of rotational positions which differ from one another. For example, the gearwheel can thus be formed integrally with the first adapter part of the second adapter and the second driver can be formed integrally with the second adapter part of the second adapter, wherein the two adapter parts preferably have mutually corresponding toothing which allows the joining of the adapter parts in a plurality of different rotational or angular positions.Although the gearwheel can also be a spur gear, for example, it has proven advantageous with regard to the installation space if the gearwheel is a bevel gear. Additionally or alternatively, it can also be provided that the gearwheel is a segmented wheel in which a toothing is formed exclusively over a circular arc and thus just not over an entire possibly imaginary circumference of the gearwheel.In addition, the gearwheel is preferably formed by a central body which can simultaneously form the second driver or be connected thereto. From the central body, a projection extends outward in the radial direction only over a part of the circumference of the central body or over a predetermined circular arc which does not completely surround the central body, on or by which the toothing is formed.With regard to a locking device for locking or unlocking a charging plug in a charging socket, which locking device has the emergency unlocking device or is at least operatively connected to the latter, it is to be noted that the locking device preferably has a latch and an actuator which is designed to move the latch between a blocking position of the latch in which the charging plug is locked in the charging socket and a release position of the latch in which the charging plug is released in the charging socket.Proceeding from this, an advantageous development of the emergency release device provides that the gearwheel is designed to be directly and in particular permanently engaged with the actuator or directly and in particular permanently engaged with the latch, so that, in both cases, a transmission of a movement from the gearwheel to the latch and from the latch or from the actuator to the gearwheel is possible at any point in time. Accordingly, the gearwheel is designed to be moved between its blocking position and its release position during a movement of the bolt.As an alternative to a direct action of the gearwheel, at least one further gearwheel and / or a toothed rack can be provided in addition to the gearwheel thus first, wherein the at least one further gearwheel and / or the toothed rack are designed to be in engagement directly and in particular permanently with the actuator or directly and in turn in particular permanently with the latch and in particular permanently with the gearwheel connected to the second driver in a rotationally fixed manner or with the first gearwheel and, when the latch is moved between its blocking position and its release position, to move the first gearwheel between its blocking position and its release position.For simple actuation of the emergency release device, the lever can also have a fastening element at an end section spaced from the pivot point, which fastening element forms a force application point for rotating the lever about its pivot point and to which a Bowden cable can be fastened, so that the lever can be moved from the basic position into the emergency release position, but preferably cannot be moved back, via a tensile force that can be transmitted to the lever by the Bowden cable.A further aspect of the invention relates to a locking device for locking a charging plug in a charging socket, wherein the charging socket, as already explained, is preferably a charging socket on or in a vehicle or on or in a charging station for a vehicle. Furthermore, the locking device has an emergency unlocking device according to the invention, a latch and an actuator which is designed to move the latch between a blocking position, in which the charging plug is locked in the charging socket, and a release position, in which the charging plug is released in the charging socket. Starting from this, the gearwheel of the emergency release device is operatively connected indirectly or directly and in particular permanently to the latch, such that the gearwheel is moved analogously between the blocking position of the release position of the gearwheel during a movement of the latch between the blocking position and the release position of the latch, independently of the direction of the movement. In this case, when the lever is moved from the basic position into the emergency unlocking position of the lever, the gearwheel moves the bolt from the blocking position into the release position of the bolt.The latch can be designed, for example, as a bolt, which can be inserted through a recess provided for this purpose into the charging plug and thereby lock or block it.A further aspect of the invention additionally relates to a charging socket for plugging in a charging plug for a vehicle, wherein the charging socket can be provided, for example, on or in the vehicle and alternatively on or in a charging station. The charging socket proposed according to the invention has a socket-like housing for receiving the charging plug, in which electrical contacts for establishing an electrical contact with the charging plug are arranged. Furthermore, the charging socket provides a locking device according to the invention, the latch of which is designed to lock the charging plug in the housing in its blocking position and to release the charging plug in the housing in its release position, so that the charging plug can be plugged out of the housing.The features disclosed above can be combined as desired, provided that this is technically possible and they do not conflict with one another.Other advantageous developments of the invention are characterized in the dependent claims or are illustrated in more detail below together with the description of the preferred embodiment of the invention on the basis of the figures. The following are shown: FIG. 1 shows a locking device with a latch in the locked position; FIG. 2 shows a locking device with a latch in the release position; FIG. 3 shows an emergency release device; FIG. 4 shows positions of an emergency release device and transition between the positions; FIG. 5 shows an emergency release device with adapter element.The figures are schematic by way of example. Like reference numerals in the figures indicate like functional and / or structural features.FIGS. 1 and 2 each show a locking device 2 with an emergency unlocking device 1 according to the invention, or a charging socket 3 with such a locking device 2. In this case, a latch 4 of the locking device 2 is shown in its blocking position in FIG. 1 and correspondingly extended through an opening into a housing 6 of the charging socket 3, so that a charging plug which can be inserted into the housing 6 and thus electrically contacted via contacts 7 would be locked in the housing 6 or in the charging socket 3.The emergency release device 1 is in a non-actuated state in FIG. 1, as corresponds, for example, to the state b) according to FIG. 4.If the charging socket 3 is now to be unlocked, i.e. the latch 4 is to be retracted or brought into its release position and this is not possible because, for example, the actuator of the locking device 2, not shown, is defective or de-energized, a force F can be applied to the lever 10 via a Bowden cable 5 fastened to a lever 10 of the emergency unlocking device 1 and the latter is brought from its basic position shown in FIG. 1 into its emergency unlocking position shown in FIG. 2, as a result of which the latch 4 is retracted and thus the charging plug is moved releasingly out of the housing 6 of the charging socket 3.However, it is essential that the emergency release device 1 should not have any influence on the normal functioning of the locking device 2 on the one hand and must be able to be reset again in a simple manner on the other hand, wherein the emergency release device 1 should at the same time be of simple construction and thus be robust and inexpensive.FIG. 3 shows a substantial part of the emergency release device 1, wherein the details given with reference to FIG. 3 preferably also apply to all other figures shown.With regard to its mechanical construction, the emergency release device 1 provides the already mentioned lever 10, which is mounted on its pivot point 11 so as to be rotatable or rotatable about an axis of rotation A. At its end section facing away from the pivot point 11, the lever 10 provides a fastening element 12, to which the Bowden cable 5 indicated in FIGS. 1 and 2 can be fixed. At the pivot point 11, the lever 10 in the present case integrally forms a first driver 20, which, during a rotation about the axis of rotation A, is in engagement with a second driver 30 via only a part of the rotation.The first driver 20 and the second driver 30 are configured coaxially with respect to one another and rotatably about the axis of rotation A, wherein the second driver 30 is configured integrally with a gearwheel 40. Since the gearwheel 40 is moved back and forth only between a blocking position and a release position, in which the bolt 4 is correspondingly located in its blocking or release position, the gearwheel does not have to rotate completely, so that it is designed in the present case as a segmented wheel for reducing material and saving installation space. In addition, the toothing of the gearwheel 40 is in the present case designed as a bevel gear toothing and the gearwheel 40 as a bevel gear.For transmitting the movement of the latch 4 to the gearwheel 40 in normal operation and for transmitting the movement of the gearwheel 40 to the latch 4 in the event of emergency unlocking, a further gearwheel 60 is furthermore provided, which has a toothing corresponding to the thus first gearwheel 40.In this case, the first gearwheel 40 and the further or second gearwheel 60 are permanently in engagement with one another, with the result that they in each case move mutually and do not have to be coupled in first in the event of an emergency unlocking operation, with the result that the gearwheels 40, 60 cannot even be known, as can be the case in the event of coupling in.However, since the lever 10 is not intended to move except in the event of an emergency release, the partial decoupling necessary for this is realized via the first driver 20 and the second driver 30.In principle, it is provided that the first driver 20 is designed to transmit a rotation of the lever 10 during a movement of the lever 10 from the basic position, such as corresponds, for example, to the position of the lever 10 in the states a) and b) of FIG. 4, into the emergency release position, such as corresponds, for example, to the position of the lever 10 in state c) of FIG. 4, when the gearwheel 40 is in the blocking position, such as corresponds, for example, to the position of the gearwheel in state a) of FIG. 4, via the second driver 30, to the gearwheel 40 and to move the latter from the blocking position into the release position. Conversely, however, it is provided that the second driver 30 is designed to transmit a rotation of the gearwheel 40 during a movement of the gearwheel 40 from the release position into the blocking position when the lever 10 is in the emergency release position via the first driver 20 to the lever 10 and to move the latter from the emergency release position into the basic position.Specifically, for this purpose, the first driver 20 has exactly two (first) driver teeth 21 which extend outwards from the axis of rotation A in the radial direction R and which are opposite one another with respect to the axis of rotation A or are uniformly distributed around the latter.The second driver 30 is designed as a sleeve encircling the axis of rotation A, wherein in turn exactly two (second) driver teeth 31, which are opposite one another with respect to the axis of rotation A or are distributed uniformly around the latter, extend in the radial direction R to the axis of rotation A, such that the first and second driver teeth 21, 31 engage via the tooth flanks facing one another in each case for force or torque transmission over part of the rotation.The various positions of the lever 10 and of the gearwheel 40 and the positions of the drivers 20, 30 resulting therefrom are depicted by the three possible states in FIG. 4.According to the state a shown in FIG. 4 ), the lever 10 is in its basic position and the gearwheel 40 is in its blocking position, in which the latch 4 is also at the same time in its blocking position.If the latch 4 is moved into its release position, the movement is also transmitted via the second or further gearwheel 60 to the first gearwheel 40, as a result of which the latter is brought into its release position, as corresponds to state b) according to FIG. 4.Both for the transition from state a) to state b) and from state b) to state a), it applies that no force or no torque is transmitted via the drivers 20, 30 and the lever 10 remains in its basic position. This therefore corresponds to normal operation of the locking device.If normal operation is not possible starting from the state a), in which the latch 4 and the gearwheel 40 are thus in the respective blocking position, the lever 10 can, as already explained and rotated about the axis of rotation A by way of the Bowden cable 5, for example, and can thus be brought from its basic position into the emergency unlocking position according to state c). In this case, a force or a torque is transmitted from the first driver teeth 21 of the first driver to the second driver teeth 31 or the second driver 30 and thus to the gearwheel 40, with the result that the gearwheel 40 is moved from the locked position according to state a) into the release position according to state c) and the latch 4 is therefore likewise brought into its release position.During the next movement of the latch 4 from its release position into its blocking position, the movement, starting from state c), is likewise transmitted via the drivers 20, 30 to the lever 10 and is thus moved back from its emergency release position according to state c) into its basic position according to state a).The transition from state a) to state c) thus corresponds to an emergency release, in which a force or a moment is transmitted from the first driver to the second driver, and the transition from state c) to state a) corresponds to a reset of the emergency release, in which a force or a moment is transmitted from the second driver to the first driver.If the latch 4 and thus also the gearwheel 40 is already in the respective release position (state b)) and if the emergency unlocking is triggered incorrectly or maliciously (brought into state c)), this corresponds to the transition from state b) to state c), wherein no forces or torques are transmitted in this case and, during the next regular locking of the latch 4, the emergency unlocking is reset, as described.In order to be able to use an emergency release device 1 illustrated in FIGS. 3 and 4 even in other installation situations or other vehicle types, it can furthermore be provided that an adapter part is provided between the lever 10 and the first driver 20 and / or between the second driver 30 and the gearwheel 40, which adapter part allows installation with different rotational positions.In this case, FIG. 5 shows a variant in which a (second) adapter 50 is provided between the gearwheel 40 and the second driver 30. The lever 10 with its first driver 20 and its driver teeth 21 are, for example, identical to the variants shown in FIGS. 1 to 4. However, the second driver 30, which is shown in FIGS. 1 to 4 and is formed integrally with the gearwheel 40, is provided on a second adapter part 52 instead of on the gearwheel 40 or is formed integrally therewith, wherein the gearwheel 40 is provided on a first adapter part 51 of the adapter 50 or is formed integrally therewith. As illustrated, a toothing is provided both on the first adapter part 51 and on the second adapter part 52, wherein the two toothings of the adapter parts 51, 52 of the (second) adapter 50 correspond to one another and allow joining in a plurality of different rotational or angular positions. Accordingly, the parts can be used according to a rotational position required for the respective application, so that no plurality of variants of emergency release devices 1 need be stored.References included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedDE 10 2010 003 545 A1

[0007] DE 10 2011 050 783 A1

[0007] DE 10 2017 123 211 A1

[0007] CN 111326916 A

[0007] CN 213026762 U

[0007] WO 2023 / 026163 A1

[0007]

Claims

Emergency unlocking device (1) for a locking device (2) for locking a charging plug in a charging socket (3), having a lever (10) mounted about an axis of rotation (A), which is connected in a rotationally fixed manner at its pivot point (11) lying on the axis of rotation (A) to a first driver (20) on the lever side and is rotatable about the axis of rotation (A) between a basic position and an emergency unlocking position, and having a gearwheel (40) mounted about the axis of rotation (A) or a further axis of rotation, which gearwheel is connected in a rotationally fixed manner to a second driver (30) on the gearwheel side and is rotatable about its axis of rotation (A) between a locking position for locking the charging plug in the charging socket (3) and a release position for releasing the charging plug in the charging socket (3), wherein the lever (10) is rotatable together with the first driver (20) between its basic position and its emergency release position when the gear (40) is in the release position, independently of the second driver (30), wherein the gear (40) is rotatable together with the second driver (30) between its release position and its blocking position when the lever (10) is in the basic position, independently of the first driver (20), wherein the first driver (20) is configured to transmit a rotation of the lever (10) during a movement of the lever (10) from the basic position into the emergency release position when the gear (40) is in the blocking position via the second driver (30) to the gear (40) and to move the latter from the blocking position into the release position, and wherein the second driver (30) is configured to, a rotation of the gearwheel (40) during a movement of the gearwheel (40) from the release position into the blocking position when the lever (10) is in the emergency release position is transmitted via the first driver (20) to the lever (10) and to move the latter from the emergency release position into the basic position.Emergency release device according to Claim 1, wherein the first driver (20) and the second driver (30) each have at least one driver tooth (21, 31) which are designed to come into engagement with one another when the lever (10) is moved from the basic position into the emergency release position when the gearwheel (40) is in the locked position and to transmit the movement of the lever (10) from the first driver (20) via the second driver (30) to the gearwheel (40) and to come into engagement with one another when the gearwheel (40) is moved from the release position into the locked position when the lever (10) is in the emergency release position and to transmit the movement of the gearwheel (40) from the second driver (30) via the first driver (20) to the lever (10).Emergency release device according to Claim 2, wherein the at least one driver tooth (21) of the first driver (20) extends outwards from its axis of rotation (A) in the radial direction (R) and the second driver (30) is formed as a sleeve which extends at least in sections around the first driver (20), from which sleeve the at least one driver tooth (31) of the second driver (30) extends inwards in the radial direction or wherein the at least one driver tooth (31) of the second driver (30) extends outwards from its axis of rotation (A) in the radial direction (R) and the first driver (20) is formed as a sleeve which extends at least in sections around the second driver (30), from which the at least one driver tooth (21) of the first driver (20) extends inward in the radial direction (R) or wherein the first driver (20) and the second driver (30) are axially adjacent along the axis of rotation (A) and axially overlap by their driver teeth (21, 31) in an axial section lying between the drivers (20, 30).Emergency release device according to one of the preceding claims, wherein the lever (10) is formed integrally and / or integrally with the first driver (20) or wherein a first adapter, which connects the lever (10) and the first driver (20) to one another in a rotationally fixed manner and comprises a first adapter part and a second adapter part corresponding thereto, is arranged between the lever (10) and the first driver (20), which is connected to the first adapter part in a rotationally fixed manner and the first driver (20), which is connected to the second adapter part in a rotationally fixed manner and the two adapter parts of the first adapter can be joined to one another in a plurality of different rotational positions.Emergency release device according to one of the preceding claims, wherein the gearwheel (40) is formed integrally and / or integrally with the second driver (30) or wherein a second adapter (50), which connects the gearwheel (40) and the second driver (30) to one another in a rotationally fixed manner and comprises a first adapter part (51) and a second adapter part (52) corresponding thereto, is arranged between the gearwheel (40) and the second driver (30) is connected to the first adapter part (51) in a rotationally fixed manner and the second driver (30) is connected to the second adapter part (52) in a rotationally fixed manner and the two adapter parts (51, 52) of the second adapter (50) can be joined to one another in a plurality of different rotational positions.Emergency release device according to one of the preceding claims, wherein the gearwheel (40) is a bevel gear and / or a segment gear, in which a toothing is formed exclusively via a circular arc.Emergency release device according to one of the preceding claims, wherein the locking device (2) has a latch (4) and an actuator which is designed to move the latch (4) between a blocking position, in which the charging plug is locked in the charging socket (3), and a release position, in which the charging plug is released in the charging socket (3), wherein the gearwheel (40) is designed to be directly in engagement with the actuator or directly with the latch (4) and to be moved between its blocking position and its release position during a movement of the latch (4) between its blocking position and its release position or wherein at least one further gearwheel (60) and / or a toothed rack are provided which are designed to engage directly with the actuator or directly with the latch (4), The gear (40) can be directly engaged with the actuator or directly with the latch (4) and with the gear wheel (40) connected to the second driver (30) in a rotationally fixed manner and, during a movement of the latch (4) between its blocking position and its release position, can move the gear wheel (40) connected to the second driver (30) in a rotationally fixed manner between its blocking position and its release position.Emergency release device according to one of the preceding claims, wherein the lever (10) has, at an end section spaced apart from the pivot point (11), a fastening element (12) which forms a force application point for rotating the lever (10) about its pivot point (11) and to which a Bowden cable (5) can be fastened.Locking device (2) for locking a charging plug in a charging socket (3) with an emergency unlocking device (1) according to one of the preceding claims, wherein the locking device (2) has a latch (4) and an actuator which is designed to move the latch (4) between a blocking position, in which the charging plug is locked in the charging socket (3), and a release position, in which the charging plug is released in the charging socket (3), wherein the gearwheel (40) is operatively connected indirectly or directly to the latch (4), such that the gearwheel (40) is moved between the blocking position and the release position of the gearwheel (40) during a movement of the latch (4) between the blocking position and the release position of the gearwheel (40), and the gearwheel (40) moves the latch (4) from the blocking position into the release position of the latch (4) during a movement of the lever (10) from the initial position into the emergency release position of the lever (10).Charging socket (3) for plugging in a charging plug for a vehicle, having a socket-like housing (6) for receiving the charging plug, in which electrical contacts (7) for establishing an electrical contact with the charging plug are arranged, wherein the charging socket (3) furthermore has a locking device (2) according to the preceding claim, the latch (4) of which is designed to lock the charging plug in the housing (6) in its blocking position and to release the charging plug in the housing (6) in its release position, such that said charging plug can be plugged out of the housing (6).

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