DE102023204730B3 - Charging plug arrangement and a method for forming such a charging plug arrangement - Google Patents

Abstract

The invention relates to a charging plug arrangement with a charging socket (3; 45) and a charging plug (5; 43), wherein the charging plug (5; 43) is connected to the charging socket (3; 45) by plugging and/or can be connected to the charging socket (3; 45). According to the invention, the charging plug arrangement (1; 41) has at least one clamping device, wherein the charging plug (5; 43) is clamped to the charging socket (3; 45) by means of the clamping device and/or can be clamped to the charging socket (3; 45).

Description

The invention relates to a charging plug arrangement according to the preamble of claim 1 and according to claim 10 to a method for forming such a charging plug arrangement.

An example charging plug arrangement for charging a traction battery of a vehicle has a charging socket connected to the vehicle and a charging plug connected to a stationary charging device via a charging cable. To form the charging plug arrangement, the charging plug is manually inserted into the charging socket. After insertion, the charging plug is locked in the charging socket opening of the charging socket using a locking device. After proper locking, a charging control system of the vehicle enables a charging process in which the traction battery is charged with a high electrical power. In this regard, reference is made to the standard for charging sockets including locking, IEC 62196.

There is usually a large radial play between the charging plug and the charging socket due to tolerances - different tolerances of the OEMs and different numbers of contact elements. Due to the large radial play, especially in conjunction with a heavy charging cable, the charging plug can be jammed in the charging socket opening and the locking device cannot lock the charging plug in the charging socket. If the locking is not done correctly, this is detected by the charging control system and only a charging process with low electrical power is started, a so-called emergency charging process. A charge level of the traction battery desired by the driver is then not reached in the expected or desired time.

The CN 1 10 048 277 A reveals a charging socket for electric vehicles. From the EN 10 2022 109 531 A1 A fixing arrangement and a loading device are known. The CN 2 05 159 650 U discloses a locking structure of an electric vehicle charging plug and a charging plug. DE 195 27 778 A1 is a cable connector for a vehicle. The EN 10 2013 106 448 A1 discloses a generic charging plug arrangement. The EN 10 2010 054 462 A1 discloses an electrical contact element and an electrical plug connection comprising the electrical contact element. EN 10 2019 125 784 A1 A charging socket for a power supply arrangement, a corresponding power supply arrangement and a method for operating a charging socket are known.

The object of the invention is to provide a charging plug arrangement and a method for forming such a charging plug arrangement which overcome the above-mentioned disadvantages.

This object is achieved by the features of the independent claims. Preferred developments of the invention are disclosed in the subclaims.

According to the invention, a charging plug arrangement with a charging socket and a charging plug is proposed. The charging plug is in, preferably complete, plug connection with the charging socket. Alternatively or additionally, the charging plug and the charging socket are suitable and/or designed so that the charging plug can be brought into, preferably complete, plug connection with the charging socket. According to the invention, the charging plug arrangement has at least one clamping device. The charging plug is clamped to the charging socket by means of the clamping device. Alternatively or additionally, the clamping device is designed and/or suitable so that the charging socket can be clamped to the charging socket, preferably by using up a radial play that exists between the charging plug and the charging socket. The radial play that initially exists between the charging plug and the charging socket is thus eliminated when the charging plug is plugged in by means of the clamping device that is then activated, i.e. moved into a clamping position. In this way, a reliable locking of the charging plug in the charging socket by means of a locking mechanism is subsequently possible even if there are different tolerance positions between the charging plug and the charging socket.

For example, it can be provided that the charging socket has a charging socket base, preferably in the form of a cup, and charging socket contact elements connected to the charging socket base. It can preferably be provided that the charging socket base has a charging socket wall, preferably essentially in the shape of a general cylinder, and a charging socket base, which is preferably connected to the charging socket wall in a uniform material and/or in one piece. It can particularly preferably be provided that the charging socket opening is delimited by the charging socket base. The charging socket contact elements can be pin or socket contacts.

Preferably, it can be provided that the charging socket has a charging socket longitudinal axis. Preferably, it can be provided that the charging socket contact elements extend parallel to the charging socket longitudinal axis.

By way of example, it can be provided that the charging plug has a charging plug base body, preferably in the shape of a cup, and charging plug contact elements connected to the charging plug base body. It can preferably be provided that the charging plug base body has a charging plug wall, preferably essentially in the shape of a general cylinder, and a charging plug base, which is preferably connected to the charging plug wall in a uniform material and/or in one piece. The charging plug contact elements can be pin or socket contacts.

Preferably, it can be provided that the charging plug has a charging plug longitudinal axis. Preferably, it can be provided that the charging plug contact elements extend parallel to the charging plug longitudinal axis.

By way of example, it can be provided that the plug connection is formed by the charging plug being partially or completely inserted into a charging socket opening delimited by the charging socket, preferably by the charging socket base body.

The expressions “is clamped” or “can be clamped” are to be understood as meaning that the charging plug, preferably in addition to the plug connection, is in a frictional connection, preferably a clamping connection, with the charging socket, or that the charging plug, preferably in addition to the plug connection, can be brought into a frictional connection, preferably a clamping connection, with the charging socket.

For example, it can be provided that the clamping device is suitable and/or designed to position and/or hold the charging plug in the charging socket opening in such a way that radial play between the charging plug and the charging socket is eliminated and/or reduced and/or that the charging plug longitudinal axis extends coaxially or at least parallel to the charging socket longitudinal axis. The charging plug longitudinal axis thus extends parallel, preferably coaxially, to the charging socket longitudinal axis even if, for example, the charging plug is connected to a heavy charging cable. Otherwise, i.e. without the clamping device working, the charging plug inserted into the charging socket opening with radial play could jam in the charging socket opening. In the jammed state, a locking device of the charging plug arrangement (not described in more detail here) cannot be activated correctly. If the locking device is not activated correctly, no charging process can be started or only a charging process with low electrical power can be started. The clamping device therefore makes it easy to establish a proper electrical charging connection between the charging plug and the charging socket, so that a charging process with high electrical power can be carried out.

Preferably, the clamping device can be part of the charging socket or part of the charging plug. The clamping device can therefore be used flexibly depending on the installation situation and application.

Preferably, it can be provided that the clamping device has a clamping pawl, wherein it can preferably be provided that the clamping pawl has a free end and a bearing-side end.

Particularly preferably, the clamping device can be provided at the bottom of the charging plug in the direction of gravity or at the bottom of the charging socket in the direction of gravity. In particular, with a heavy and dangling charging cable, the longitudinal axis of the charging plug is aligned particularly effectively with the longitudinal axis of the charging socket during the plugging process.

According to the invention, it is provided that the clamping device has a clamping pawl and that the clamping pawl is rotatably mounted on a bearing pin with a bearing-side end. For example, it can be provided that the clamping pawl can be transferred from an insertion position of the clamping pawl to a clamping position of the clamping pawl and vice versa by rotation about the bearing pin.

For example, the bearing bolt can be part of the charging socket or part of the charging plug. The bearing bolt can therefore be positioned flexibly depending on the installation situation and application.

For example, it can be provided that the clamping latch in the clamping position is supported on the charging plug, preferably on an outer peripheral surface of the charging plug wall, or on the charging socket, preferably on an inner peripheral surface of the charging socket wall. Therefore, surfaces that are already present in a charging plug arrangement are used for support, which means that the design effort is as low as possible.

In an exemplary embodiment, it can be provided that a recess is assigned to the charging plug or the charging socket, and/or that the clamping pawl is sunk into the recess in the insertion position, preferably completely, and/or that the clamping pawl protrudes partially and/or with a free end of the clamping pawl from the recess in the clamping position. In this way, an interference-free insertion is possible in the insertion position. plugging in the charging plug, whereas the clamping latch protruding from the recess reliably eliminates radial play.

Preferably, the clamping latch can be recessed in the recess in the insertion position in such a way that the clamping latch is flush with an outer peripheral surface of the charging plug wall or flush with an inner peripheral surface of the charging socket wall. Because the clamping latch is completely recessed in the recess, at least partial insertion of the charging plug into the charging socket is possible without any interference contours.

In the recess associated with the charging plug, it can be provided that the recess is open radially outward, preferably in relation to the charging plug's longitudinal axis. It can be provided that the recess is delimited by recess side walls, which are preferably part of the charging plug.

In the case of the recess associated with the charging socket, it can be provided that the recess is open radially inwards, preferably in relation to the charging socket's longitudinal axis. It can be provided that the recess is delimited by recess side walls, which are preferably part of the charging socket.

Preferably, it can be provided that the recess side walls merge into the outer peripheral surface of the charging plug wall or into the inner peripheral surface of the charging socket wall.

In an exemplary embodiment, it can be provided that a spring device is provided which, preferably in the insertion position and in the clamping position, exerts a spring force on the clamping pawl in the direction of the insertion position, wherein it can preferably be provided that the amount of the spring force in the insertion position is less than the amount of the spring force in the clamping position. The clamping pawl is thus held in its insertion position until the clamping pawl is actually actuated, for example when the charging plug is fully inserted into the charging socket.

Preferably, it can be provided that the spring device is formed by a torsion spring or by a compression spring.

In a preferred embodiment, it can be provided that a latch actuating device is assigned to the charging plug or the charging socket, and/or that the latch actuating device is designed and/or suitable for the latch actuating device to move the clamping latch from the insertion position to the clamping position, preferably when the charging plug is inserted into a charging socket opening of the charging socket. This means that the clamping latch is moved to the clamping position simply by inserting the charging plug into the charging socket, preferably completely.

In a particularly preferred embodiment, it can be provided that the latch actuation device is formed by an actuation pin, and that the charging plug wall or the charging socket wall has a pin recess in which the actuation pin is slidably mounted, preferably in such a way that the actuation pin is slidably mounted parallel to the charging plug longitudinal axis and/or to the charging socket longitudinal axis and relative to the clamping latch. The pin recess offers a low-friction sliding guide for the actuation pin, which facilitates force-free insertion of the charging plug into the charging socket.

Preferably, the clamping pawl can have a clamping pawl base body and a clamping pawl projection, preferably connected to the clamping pawl base body, which projects from the clamping pawl base body in the direction of the insertion position of the clamping pawl. The clamping pawl projection provides a sliding contour in a structurally simple manner.

In an exemplary embodiment, it can be provided that the charging plug or the charging socket is designed and/or suitable for the actuating pin to interact with the clamping latch, preferably with a clamping latch projection of the clamping latch, when moved in the direction of the clamping latch, in such a way that the clamping latch is transferred from the insertion position to the clamping position with the build-up of additional spring force. The actuating pin is therefore not only there to transfer the clamping latch to the clamping position, but also has a dual function of holding the clamping latch in the clamping position until the charging plug is pulled out of the charging socket again.

For example, it can be provided that the charging plug is supported by means of the clamping device in relation to a longitudinal axis of the charging socket radially outward on the charging socket, preferably on an inner circumference of the charging socket and/or on an inner circumference of a base body wall of the charging socket.

For example, it can be provided that the charging socket or the charging plug is part of a vehicle, preferably part of a passenger car Alternatively or additionally, it can be provided that the charging plug or charging socket is part of a charging device, preferably one that is installed stationary.

Preferably, the charging plug arrangement can have two clamping devices. It can be provided that a first clamping device of the two clamping devices is part of the charging plug and/or that a second clamping device of the two clamping devices is part of the charging socket. Two clamping devices can achieve an even more reliable elimination and/or reduction of the radial play.

For example, it can be provided that the bearing-side end of the clamping pawl assigned to the charging plug points in the direction of the charging socket. When the charging plug is pulled out of the charging socket opening, the clamping pawl is pressed in the direction of the clamping position due to the friction between the clamping pawl on the one hand and the inner circumferential surface of the charging socket on the other. Due to the described orientation of the bearing-side end, the clamping device, preferably in addition to and/or as an alternative to the locking device, helps to hold the charging plug in the charging socket opening. The described orientation of the clamping pawl thus leads to self-reinforcement with regard to the clamping effect and/or the holding effect of the charging plug on the charging socket and/or in the charging socket opening, similar to a running-on brake shoe of a drum brake.

For example, it can be provided that the bearing-side end of the clamping pawl assigned to the charging socket points in the direction of the charging plug. When the charging plug is pulled out of the charging socket opening, the clamping pawl is pressed in the direction of the clamping position due to the friction between the clamping pawl on the one hand and the outer circumferential surface of the charging plug on the other. Due to the described orientation of the bearing-side end, the clamping device, preferably in addition to and/or as an alternative to the locking device, helps to hold the charging plug in the charging socket opening. The described orientation of the clamping pawl thus leads to self-reinforcement with regard to the clamping effect and/or the holding effect of the charging plug on the charging socket and/or in the charging socket opening, similar to a running brake shoe of a drum brake.

Preferably, it can be provided that the bearing pin is arranged, preferably completely, in the recess.

According to the invention, a charging socket as described above is also proposed.

According to the invention, a charging plug as described above is also proposed.

According to the invention, a method for forming a charging plug arrangement according to one of the preceding claims is also proposed, with a provision step in which a charging socket as described above and a charging plug as described above are provided, and a plugging step in which the charging plug is preferably completely inserted into the charging socket opening. During the plugging step, the actuating device interacts with the clamping pawl and/or comes into contact with the clamping pawl during the plugging step in such a way that the clamping pawl is transferred from the insertion position to the clamping position, preferably against the spring force of the spring element. Any radial play between the charging plug and the charging socket is eliminated and/or at least reduced by transferring the clamping pawl from the insertion position to the clamping position. In this way, a reliable locking of the charging plug in the charging socket by means of a locking mechanism is subsequently possible even if there are different tolerance positions between the charging plug and the charging socket.

In the method, it can be provided, for example, that the charging plug is still not connected to the charging socket before the plugging step and/or that the charging plug is not plugged into the charging socket before the plugging step.

In the method, it can be provided, for example, that the clamping pawl is supported in the clamping position on the charging socket, preferably on the inner circumferential surface of the charging socket wall. Alternatively or additionally, it can be provided that the clamping pawl is supported in the clamping position on the charging plug, preferably on the outer circumferential surface of the charging plug wall.

Preferably, the method can provide for a radial play between the charging plug and the charging socket before the charging plug is fully inserted into the charging socket, wherein it can preferably be provided that the radial play is eliminated and/or reduced and/or reduced by transferring the clamping pawl, preferably starting from the insertion position, into the clamping position.

Embodiments of the invention are described below with reference to the accompanying figures.

• 1 in einer rein schematischen Seitenschnittansicht eine Ladesteckanordnung gemäß einer ersten Ausführungsform in teilweiser Steckverbindung;
• 2 in einer rein schematischen Seitenschnittansicht die Ladesteckanordnung gemäß der 1 in vollständiger Steckverbindung;
• 3 in einer rein schematischen Seitenschnittansicht eine Ladesteckanordnung gemäß einer zweiten Ausführungsform in teilweiser Steckverbindung, und
• 4 in einer rein schematischen Seitenschnittansicht die Ladesteckanordnung gemäß der 3 in vollständiger Steckverbindung.

Show it:

• 1 in a purely schematic side sectional view of a charging plug arrangement according to a first embodiment in partial plug connection;
• 2 in a purely schematic side sectional view the charging plug arrangement according to the 1 in full plug-in connection;
• 3 in a purely schematic side sectional view a charging plug arrangement according to a second embodiment in partial plug connection, and
• 4 in a purely schematic side sectional view the charging plug arrangement according to the 3 in full plug connection.

In the 2 a charging plug arrangement 1 with a charging socket 3 and a charging plug 5 is shown, wherein the charging plug 5 is fully connected to the charging socket 3. The charging plug 5 is connected to a stationary charging device (not shown). The charging socket 3 is connected to a passenger vehicle (not shown).

The charging plug 5 has a clamping pawl 7, which at least forms a clamping device and which, in its clamping position, clamps the charging plug 5 to the charging socket 3 in such a way that radial play between the charging plug 5 and the charging socket 3 is eliminated or reduced. In addition, a charging plug longitudinal axis LS of the charging plug 5 extends essentially parallel to a charging socket longitudinal axis LD of the charging socket 3, so that the charging plug 5 can be reliably locked in the charging socket 3 by means of a locking mechanism (not shown).

The charging socket 3 has a cup-shaped charging socket base body and charging socket contact elements 11 which are at least partly formed by pin contacts and which are connected to the charging socket base body. The charging socket contact elements 11 extend parallel to the charging socket longitudinal axis LD. The charging socket base body has a charging socket wall 13 and a charging socket base 15 which, here only as an example, is connected to the charging socket wall 13 in a uniform material and in one piece. A charging socket opening 17 of the charging socket 3 is delimited by the charging socket base body.

The charging plug 5 has a cup-shaped charging plug base body and charging plug contact elements 21 formed by socket contacts, which are connected to the charging plug base body and correspond to the pin contacts of the charging socket 3. The charging plug contact elements 21 extend parallel to the charging plug longitudinal axis LS. The charging plug base body has a charging plug wall 23 and a charging plug base 25, which here is connected to the charging plug wall 23 in one piece and of the same material, merely as an example.

The clamping pawl 7 has a free end and a bearing-side end. The clamping pawl 7 is rotatably mounted on a bearing pin 26 of the charging plug 5 with the bearing-side end. The bearing pin 26 is fastened to the charging plug wall 23 and arranged in a recess associated with the charging plug 5. The recess is open radially outward with respect to the charging plug longitudinal axis LS and is delimited by recess side walls which are part of the charging plug 5 and merge into an outer peripheral surface 28 of the charging plug wall 23.

The bearing-side end of the clamping pawl 7 points in the direction of the charging socket 3. In addition, a spring device formed by a torsion spring (merely by way of example and not shown) is provided, which exerts a spring force on the clamping pawl 7 in the direction of a 1 shown insertion position of the clamping latch 7.

An actuating pin 29 of the charging plug 5 forms a latch actuating device. The actuating pin 29 is movably mounted in a pin recess of the charging socket wall 13, in such a way that the actuating pin 29 can be moved parallel to the charging plug longitudinal axis LS and relative to the clamping latch 7. The actuating pin 29 is spring-loaded in the direction of the charging socket 3. As long as the actuating pin 29 is not in contact with the charging socket base 15, the actuating pin 29 protrudes from the pin recess on the front surface of the charging plug wall 23 facing the charging socket 3.

In the 2 In the clamping position of the clamping pawl 7 shown, the actuating pin 29 is in contact with the clamping pawl 7, more precisely with a clamping pawl projection 33 of the clamping pawl 7, in such a way that the clamping pawl 7 is held in the clamping position and is pressed against and/or supported on an inner circumferential surface 35 of the charging socket wall 13. By supporting the clamping pawl 7, a radial play existing between the charging plug 5 and the charging socket 3 is eliminated and the charging plug 5 is aligned such that the charging plug longitudinal axis LS extends parallel to the charging socket longitudinal axis LD.

As this is the case in the 3 As shown, the clamping latch 7 in a charging plug arrangement 41 is not provided on a charging plug 43, but alternatively on a charging socket 45. Components with the same function, construction and effect are in connection with Both charging plug arrangements 1 and 41 are designated with the same reference numerals. In addition, the statements regarding charging plug arrangement 1 also apply to charging plug arrangement 41, unless otherwise stated.

In the charging plug arrangement 41, in addition to the clamping latch 7, the bearing bolt 26 and the recess are not assigned to the charging plug 43, but to the charging socket 45. Consequently, neither the clamping latch 7, nor the recess, nor the bearing bolt 26 are provided on the charging plug 43 in the charging plug arrangement 41. The free end of the clamping latch 7 points in the direction of the charging plug 43. In the charging plug arrangement 41, the pin recess is not limited by the charging plug wall 23, but by the charging socket wall 13. The actuating pin 29, which is spring-loaded in the pin recess, is actuated in the charging plug arrangement 41 by the actuating pin 29 coming into contact with a shoulder 37 of the charging plug 43 when plugged in. As in the 4 As shown, the clamping pawl 7 in the charging plug arrangement 41 is supported in its clamping position on the outer peripheral surface 28 of the charging plug wall 23.

The following is based on the 1 and 2 a method for forming the charging plug arrangement 1 is described. The method for forming the charging plug arrangement 41 is analogous and is based on the 3 and 4 Both methods have a provisioning step and a plugging step.

In the method relating to the charging plug arrangement 1, the charging socket 3 and the charging plug 5 are first provided in the provision step. During the provision step, the charging plug 5 is still outside the charging socket opening 17 and is not yet connected to the charging socket 5. The clamping latch 7 is in its insertion position, in which the clamping latch 7 is completely sunk into the recess under the action of the spring force, in such a way that the clamping latch 7 is flush with the outer peripheral surface 28 of the charging plug wall 23.

Following the provision step, in the plugging step of the method, the charging plug 5 is initially partially inserted into the charging socket opening 17 to form a partial plug connection, as shown in 1 The clamping latch 7 is still in its insertion position.

The charging plug 5 is then pushed further into the charging socket opening 17 during the plugging step. In the insertion position of the clamping latch 7, the actuating pin 29 protruding from the pin recess comes into contact with the charging socket base 15. When the charging plug 5 is subsequently pushed further into the charging socket opening 17, the actuating pin 29 in the pin receptacle 31 is moved in the direction of the clamping latch 7 and then comes into contact with the clamping latch projection 33.

When the actuating pin 29 is pushed in further, the clamping pawl projection 33 slides with its flank facing the actuating pin 29 on one end face of the actuating pin 29. This moves the clamping pawl 7, against the spring force of the torsion spring, from the insertion position into the clamping position (see 2 ), in which the clamping pawl 7 is supported on the inner circumferential surface 35 of the charging socket wall 13. When the charging plug 5 is fully inserted into the charging socket opening 17, the charging plug 3 is clamped to the charging socket 3 via the clamping pawl 7 in such a way that radial play between the charging plug 5 and the charging socket 3 is eliminated or reduced. In addition, when the charging plug 5 is clamped in the charging socket opening 17, the charging plug longitudinal axis LS extends at least substantially parallel to the charging socket longitudinal axis LD.

To form the charging plug arrangement 41, the described method is carried out in an analogous manner, wherein the clamping pawl 7 is subsequently supported not on the inner circumferential surface 35, but on the outer circumferential surface 28.

List of reference symbols

1

Charging connector arrangement

3

Charging socket

5

Charging plug

7

Clamping latch

11

Charging socket contact elements

13

Charging socket wall

15

Charging socket base

17

Charging socket opening

21

Charging plug contact elements

23

Charging plug wall

25

Charging plug base

26

Bearing bolt

28

Outer peripheral surface

29

Actuating pin

33

Clamping pawl projection

35

Inner peripheral surface

37

Paragraph

41

Charging connector arrangement

43

Charging plug

45

Charging socket

LD

Charging socket longitudinal axis

LS

Charging plug longitudinal axis

Claims (10)

Charging plug arrangement with a charging socket (3; 45) and a charging plug (5; 43), wherein the charging plug (5; 43) is in a plug connection with the charging socket (3; 45) and/or can be brought into a plug connection with the charging socket (3; 45), wherein the charging plug arrangement (1; 41) has at least one clamping device, and wherein the charging plug (5; 43) is clamped to the charging socket (3; 45) by means of the clamping device and/or can be clamped to the charging socket (3; 45), characterized in that the clamping device has a clamping pawl (7), and that the clamping pawl (7) is rotatably mounted with a bearing-side end on a bearing bolt (26). Charging connector arrangement according to Claim 1 , characterized in that the clamping pawl (7) can be transferred from an insertion position of the clamping pawl (7) into a clamping position of the clamping pawl (7) and vice versa by rotation about the bearing pin (26). Charging connector arrangement according to Claim 2 , characterized in that a recess is assigned to the charging plug (5; 43) or the charging socket (3; 45), and that the clamping pawl (7) is countersunk in the recess in the insertion position, preferably completely, and/or that the clamping pawl (7) in the clamping position protrudes partially and/or with a free end of the clamping pawl (7) from the recess. Charging connector arrangement according to Claim 2 or 3 , characterized in that a spring device is provided which, preferably in the insertion position and in the clamping position, exerts a spring force on the clamping pawl (7) in the direction of the insertion position, wherein it is preferably provided that the amount of the spring force in the insertion position is less than the amount of the spring force in the clamping position. Charging plug arrangement according to one of the Claims 2 until 4 , characterized in that a latch actuating device is assigned to the charging plug (5; 43) or the charging socket (3; 45), and that the latch actuating device is designed and/or is suitable for the latch actuating device to transfer the clamping latch (7) from the insertion position into the clamping position, preferably when the charging plug (5; 43) is inserted into a charging socket opening (17) of the charging socket (3; 45). Charging connector arrangement according to Claim 5 , characterized in that the latch actuating device is formed by an actuating pin (29), and that the charging plug wall (23) or the charging socket wall (13) has a pin recess in which the actuating pin (29) is displaceably mounted, preferably in such a way that the actuating pin (29) is displaceably mounted parallel to the charging plug longitudinal axis (LS) and/or to the charging socket longitudinal axis (LD) and relative to the clamping latch (7). Charging connector arrangement according to Claim 6 , characterized in that the charging plug (5; 43) or the charging socket (3; 45) is designed and/or suitable for the actuating pin (29) when displaced in the direction of the clamping pawl (7) interacts and/or comes into contact with the clamping pawl (7), preferably with a clamping pawl projection (33) of the clamping pawl (7), in such a way that the clamping pawl (7) is transferred from the insertion position into the clamping position with the build-up of additional spring force. Charging socket (3; 45) according to one of the preceding claims. Charging plug (5; 43) according to one of the Claims 1 until 7 . Method for forming a charging plug arrangement (1; 41) according to one of the preceding claims, with a preparation step in which the charging socket (3; 45) and the charging plug (5; 43) are prepared, a plugging step in which the charging plug (5; 43) is plugged, preferably completely, into the charging socket opening (17), wherein the actuating device interacts with the clamping pawl (7) during the plugging step and/or comes into contact with the clamping pawl (7) in such a way that the clamping pawl (7) is transferred from the insertion position into the clamping position, preferably against the spring force of the spring element.