Plug-in system

Abstract

The invention relates to a plug-in system with a plug-in part (1) and a receiving part (101), wherein a plug-in part housing of the plug-in part (1) is inserted into a receiving part contact space (121) which is bounded outwardly by a receiving part housing of the receiving part (101), such that a plug-in part contact surface (61) of a plug-in part contact part (15) of the plug-in part (1) comes into abutting contact with a receiving part contact surface (145) of a receiving part contact part (115) of the receiving part (101), and wherein the plug-in part contact surface (61) and the receiving part contact surface (145) are pressed against one another by a pressure exerted by a screwing device (preferably in its tightened state) of the plug-in system (1000).

Description

Technical Field

[0001] The invention relates to a plug-in system. Background Art

[0002] Modern electric vehicles have charging sockets with AC and / or DC connections. The vehicle's traction battery can be charged via the charging socket, with large amounts of electrical energy being transferred via the DC connection. To this end, the charging socket is electrically connected to the vehicle's high-voltage dual-rail system. This high-voltage dual-rail system is, in turn, electrically connected to the traction battery. To facilitate installation of the charging socket, the electrical connection between the charging socket and the high-voltage dual-rail system can be established via a plug-in system. This plug-in system has a plug-in connector and a receiving connector, which are plugged into the receiving connector to form the plug-in system. However, this plug-in system has a disadvantage: high contact resistance, which means it can only transfer relatively low amounts of electrical energy. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to provide a plug-in system that can be used to transmit higher power.

[0004] According to the present invention, a plug-in system with a plug and a receiver is provided, wherein the plug housing of the plug is inserted into a contact space of the receiver, which is delimited outwardly by the receiver housing of the receiver, so that a plug contact surface of the plug contact of the plug part abuts against a receiving contact surface of the receiving contact of the receiver, and wherein the plug contact surface and the receiving contact surface are pressed against each other by pressure exerted by a threaded device of the plug-in system (preferably in its tightened state). Since the contact surfaces of the plug-in system are pressed against each other under the action of pressure, the plug-in system has a very low contact resistance. Consequently, significantly higher electrical power can be transmitted via the plug-in system.

[0005] For ease of explanation only, the following provisions are adopted: the plug-in portion may be provided with a plug-in portion plug-in axis extending perpendicularly to the housing bottom of the receiving portion housing. The positive plug-in axis direction of the plug-in portion plug-in axis may point in the direction of the housing bottom of the receiving portion housing. Alternatively or additionally, the receiving portion may be provided with a receiving portion plug-in axis extending perpendicularly to the housing bottom of the plug-in portion housing. The positive plug-in axis direction of the receiving portion plug-in axis may point in the direction of the housing bottom of the plug-in portion housing. In the plug-in system, the plug-in portion plug-in axis may extend coaxially with the receiving portion plug-in axis, wherein the positive plug-in axis direction of the plug-in portion plug-in axis may point in the opposite direction to the positive plug-in axis direction of the receiving portion plug-in axis. Alternatively or additionally, for better guidance during the manufacturing process of the plug-in system, it may be provided that in the plug-in system, the outer circumferential surface of the housing base of the plug-in portion housing preferably abuts the inner circumferential surface of the housing base of the receiving portion housing in a surface-contact manner and / or substantially.

[0006] For ease of explanation it should be noted that a tightened state of a threaded device is to be understood as a state in which the threaded device exerts pressure. This should be distinguished from a loosened state of a threaded device in which no pressure is exerted by the threaded device and / or no strain occurs in the threaded device.

[0007] In order to achieve high pressure in the plug-in system and thus a high power transmission capacity of the plug-in system, in a preferred embodiment it is provided that the pressure preferably acts essentially perpendicularly to the plug-in contact surface and / or the receiving contact surface, and / or that the threaded device preferably extends essentially perpendicularly to the plug-in contact surface and / or the receiving contact surface.

[0008] In order to be able to manufacture the threaded device using standard parts and thus save costs, it is provided in an exemplary embodiment that the threaded device has a screw and a nut, and the screw has a screw head, a screw shank and a shank flange fixed to the screw shank and preferably spaced apart from the screw head, and the plug-in contact part and the receiving contact part are pressed between the shank flange and the nut under pressure.

[0009] To achieve a high pressure, in an exemplary embodiment, the shaft collar has a contact surface facing the plug contact, wherein the shaft collar is pressed with its contact surface preferably directly and / or electrically conductively against the plug contact.

[0010] In order to achieve particularly easy and effective electrical touch protection in the plug system, the diameter of the shank flange in the plane in which the contact surface also extends is preferably greater than the diameter of the shank portion of the screw shank extending between the screw head and the shank flange.

[0011] In order to be able to produce the screw with the shank flange as simply and cost-effectively as possible, in a preferred embodiment it is provided that the shank flange is connected to the screw shank in a materially uniform manner and / or is connected integrally to the screw shank and / or that the shank flange is pushed onto and / or screwed onto the screw shank and preferably abuts against a shoulder of the screw shank or a stop of the screw shank, wherein it is preferably provided that the shank flange (preferably an internal thread of the shank flange) is threadedly engaged with the screw shank (preferably an external thread of the screw shank).

[0012] In order to ensure that the plug-in part is also inserted into the contact space of the receiving part in the plug-in system when the threaded device is connected to the receiving part, in a preferred embodiment, it is provided that a contact notch is correspondingly provided for the plug-in part contact part, and the contact notch is at least partially delimited outwardly by the plug-in part contact part and / or opens in the direction of the positive plug-in axis of the plug-in part plug-in axis, and / or a base notch is correspondingly provided for the shell base of the plug-in part shell, and the base notch is delimited outwardly by the shell base of the plug-in part shell and / or opens in the direction of the positive plug-in axis of the plug-in part plug-in axis.

[0013] In order to achieve a mechanically stable and reliably sealable plug-in connection between the plug-in part and the receiving part, in an exemplary embodiment, it is provided that the housing base of the plug-in part housing, the housing bottom of the plug-in part housing and the housing outer sleeve of the plug-in part housing define the boundaries of an annular groove surrounding the housing base, wherein the annular groove is preferably open in the direction of the positive plug-in axis of the plug-in part.

[0014] In order to prevent, for example, dirt and / or dust and / or moisture from penetrating into the plug contact space and / or the receiver contact space, it is provided, for example, that a preferably annular sealing element is arranged in the annular groove, wherein it is provided that in the plug system the sealing element seals a gap between the housing base of the plug housing (preferably the outer circumference of the housing base of the plug housing) and the housing base of the receiver housing (preferably the inner circumference of the housing base of the receiver housing).

[0015] In order to achieve reliable touch protection in terms of electrical safety, in an exemplary embodiment, it is provided that the housing base of the receiving part housing has an operating hole for the screwing operation of the screw, and the threaded device has a protective cap as a touch protection element, which is connected to the screw head on the side of the screw head facing away from the screw shaft, and preferably makes the screw head not directly accessible through the operating hole, wherein it is preferably provided that the material of the protective cap is a non-conductive and / or electrically insulating material.

[0016] In order to be able to clearly see and / or tactilely identify during the manufacture of the plug-in system whether the threaded device is correctly in its tightened state, in an exemplary embodiment, it is provided that the receiver has an operating sleeve (Zugangshülse), which is arranged on the outside of the receiver housing base and defines the outer boundary of a sleeve through-hole (Hülsendurchlass) aligned with the operating through-hole, and that the plug-in system has a sealing cap, which is designed and / or suitable for being able to be completely moved onto the operating sleeve and / or to be able to be connected in a form-fitting manner to the outer circumference of the operating sleeve as long as the threaded device is in its tightened state, preferably when the plug-in part is completely inserted into the contact space of the receiver.

[0017] The sealing element can extend circumferentially, preferably completely around the housing base of the plug housing. All of the sealing elements can be formed by contoured sealing portions. Alternatively or in addition, the material of the sealing element can be an elastically deformable material, preferably an elastomer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Advantageous embodiments of the present invention will be explained in more detail below by way of example with reference to the accompanying drawings. Figure 1 A plug-in connector for a plug-in system is shown in a perspective view; Figure 2 The plug-in portion is shown in a side view; Figure 3 A receptacle for a plug-in system is shown in a perspective view; Figure 4 The receiving portion is shown in a side cross-sectional view; Figure 5 A plug-in device having a plug-in portion and a receiving portion is shown in a side sectional view; Figure 6 The plug system is shown in a side sectional view, wherein the plug and the receiver are formed by a plug-in connection and a pressure connection. DETAILED DESCRIPTION

[0019] exist Figure 1 and Figure 2 The diagram shows Figure 6 The plug-in connector 1 for an electric vehicle plug-in system 1000 is shown. The plug-in connector 1 has a plug-in connector housing with a housing base 5, a housing bottom 7 and a housing outer sleeve 9 (see in particular Figure 2 ). In addition, the plug part 1 also has a center plate, a guide plate, a plug part contact part 15 which is preferably formed by a flat contact part (see in particular Figure 2 ) and a preferably annular sealing element 17. The shape of the plug contact portion 15 is only exemplarily a rectangular strip. The plug contact portion 15 is not directly connected to the housing base 5, but only to the housing bottom 7.

[0020] The housing base 5 and the housing bottom 7 together define the plug-in contact space 21 (see in particular Figure 2 ). The plug contact space 21 is completely closed in the negative direction of the plug axis SS of the plug 1 by the housing bottom 7, with the exception of the through-sleeve for the plug contact 15. However, the plug contact space 21 is open in the positive direction of the plug axis SS (as indicated by the arrow). Figure 1 and Figure 2 as well as Figure 5 and Figure 6 In the embodiment of the plug-in connector 1 shown in FIG, the housing main body 5 is formed, for example, by a rectangular tube.

[0021] The housing bottom 7 projects radially outward from the housing base 5 relative to the plug-in axis SS. The housing outer sleeve 9 is arranged radially outside the housing base 5 relative to the plug-in axis. The housing outer sleeve 9 extends from the housing bottom 7 in the positive direction of the plug-in axis. The housing outer sleeve 9 is significantly shorter than the housing base 5 relative to the plug-in axis SS. The housing outer sleeve 9, the housing bottom 7, and the housing base 5 together delimit an annular groove 23 that completely surrounds the housing base 5. The annular groove 23 opens in the positive direction of the plug-in axis.

[0022] The sealing element 17 is arranged in the annular groove 23. The sealing element 17 extends circumferentially around the housing base 5 over the entire length of the annular groove 23. Here, the sealing element 17 is fixed to the outer circumference of the housing base 5 as an example. The material of the sealing element 17 is elastically deformable. The material of the sealing element 17 is preferably an elastomer.

[0023] The housing base 5 has a cover wall 25 and a cover wall 27 that extends parallel to and spaced apart from the cover wall 25. The plug contact 15 extends in a plane that extends parallel to the cover wall 25. A base recess 31 is associated with the cover wall 25 and is bounded by the cover wall 25. The base recess 31 is open in the positive direction of the plug axis and in the direction of and opposite to the plug contact 15.

[0024] The plug contact portion 15 is provided with a corresponding contact portion notch 33. The contact portion notch 33 is bounded outwardly by the plug contact portion 15. The plug notch 33 opens in the positive direction of the plug axis and in the direction of the cover wall 25 and the direction of the cover wall 27.

[0025] Plug 1 also has a central plate arranged in plug contact space 21. The central plate has a base portion 41 that extends essentially parallel to cover walls 25 and 27 and is spaced apart from these walls. The central plate also has a touch-protection shoulder 43 connected to base portion 41. Base portion 41 is attached to housing bottom 7 and to housing base body 5.

[0026] The center plate is provided with a corresponding center plate notch 45, which is delimited outwardly by the center plate. The center plate notch 45 opens in the positive direction of the plug-in axis of the plug-in portion and in the direction of the cover wall 25 and the cover wall 27. The center plate notch 45 is formed by a material-free bottom portion on the bottom side of the housing and a material-free connecting portion pointing in the positive direction of the plug-in axis of the plug-in portion. The bottom portion transitions directly into the connecting portion. The bottom portion has a substantially cylindrical shape. The connecting portion has a substantially stepped rectangular parallelepiped shape.

[0027] The base portion 41 rests against the plug contact 15 on its surface facing the cover wall 25. A touch protection shoulder 43 extends from the base portion 41 toward the cover wall 27 and completely covers the end face of the plug contact 15 pointing in the positive direction of the plug axis and the side faces of the plug contact 15 pointing toward the housing base 5. The surface of the plug contact 15 is open toward the cover wall 25 in its free surface area. Unlike the rest of the surface of the plug contact 15, this free surface area is not covered by the base portion 41, leaving it exposed in the area of ​​the bottom portion. This free surface area essentially has the shape of a circular ring segment.

[0028] The plug-in connector 1 also has a guide plate. The guide plate has a top-hat-shaped cross-sectional profile with a profile base 53, profile side walls 55, and a profile flange 57. The profile base 53 and the profile side walls 55 together define a profile groove 59 that is open toward the plug-in connector contact portion 15 and is preferably rectangular. The profile groove 59 extends essentially parallel to the plug-in connector plug-in axis SS. The guide plate is connected to the housing base 5 and the housing base 7 via the profile flange 57. The profile base 53 extends essentially in a profile base plane that extends parallel to the cover wall 25. The profile flange 57 extends in a common profile flange plane that extends parallel to and spaced apart from the profile base plane. The profile flange plane is spaced apart from the center plate and the plug-in connector contact portion 15.

[0029] The housing base 5, the center plate, and the guide plate together form the end face of the plug part 1 that points in the positive direction of the plug-in axis. The plug part contact portion 15 is set back relative to the plane in which the end face of the plug part 1 extends, toward the housing bottom 7. The plug part contact portion 15 is partially covered by the base portion 41 and the touch protection shoulder 43. The plug part contact surface 61 of the plug part contact portion 15 (see in particular Figure 2 ) is not covered by the center plate, but is exposed in the direction of the guide plate. The plug contact surface 61 extends parallel to the surface of the plug contact portion 15 and is opposite to it.

[0030] exist Figure 3 and Figure 4 The picture shows Figure 6 1 shows a receiving part 101 of a plug-in system 1000. The receiving part 101 has a receiving part housing with a housing base 105, a housing bottom 107, and an actuating sleeve 109. Furthermore, the receiving part 101 has a center plate, a guide plate, and a receiving part contact 115, which is preferably formed by a flat contact. The receiving part contact has the shape of a rectangular strip, which is merely an example. The receiving part contact 115 is not directly connected to the housing base 105.

[0031] The housing base 105 and the housing bottom 107 define the boundaries of the receiving part contact part space 121. The receiving part contact space 121 is closed by the housing bottom 107 in the negative direction of the receiving part plug-in axis AS, except for the through-sleeve for the receiving part contact part 115. The receiving part contact space 121 is open in the positive direction of the receiving part plug-in axis AS. Figure 3 and Figure 4 as well as Figure 5 and Figure 6 In the embodiment of the receiving portion 101 shown in FIG, the housing base 105 is formed by a rectangular tube. The receiving portion contact portion 115, the center plate and the guide plate are arranged in the receiving portion contact portion space 121.

[0032] The housing base 105 has a cover wall 125 and a cover wall 127. The cover wall 127 extends parallel to and spaced apart from the cover wall 125. An operating through hole is provided in the cover wall 125. The operating through hole is delimited outwardly by the cover wall 125. The operating through hole preferably has the shape of a short, thick cylinder.

[0033] The operating sleeve 109 is arranged on the housing base 105 radially outward relative to the receiving portion's plug-in axis AS. The operating sleeve 109 is essentially hollow cylindrical and defines the radially outward boundary of the sleeve through-hole relative to the longitudinal axis of the sleeve through-hole. The longitudinal axis of the sleeve through-hole extends perpendicular to the receiving portion's plug-in axis AS. The sleeve through-hole connects radially outward to the operating through-hole. The sleeve through-hole is arranged concentrically with and aligned with the operating through-hole.

[0034] The receiving portion 101 has a central plate. The central plate extends substantially in a plane parallel to the cover wall 125. The central plate is attached to the housing bottom 107 but not directly to the housing base 105. The central plate has a base portion 141 and a touch-protection shoulder 143. A corresponding nut through-hole is provided in the base portion 141, which is delimited radially outwardly by the base portion 141 relative to the longitudinal axis of the nut through-hole. The longitudinal axis of the nut through-hole extends coaxially with the longitudinal axis of the sleeve through-hole.

[0035] The touch protection shoulder 143 protrudes from the base portion 141 toward the cover wall 125 and covers the end face of the receiving portion contact portion 115 that points in the positive direction of the receiving portion plugging axis. In addition, the touch protection shoulder 143 also covers the side faces of the receiving portion contact portion 115, which extend from the end faces of the receiving portion contact portion 115 and are respectively perpendicular to the cover wall 125.

[0036] The base portion 141 rests on the surface of the receiving portion contact portion facing the cover wall 127. The receiving portion contact surface 145 of the receiving portion contact portion 115 extends parallel to the surface of the receiving portion contact portion and is opposite to the cover wall. The receiving portion contact surface 145 is not covered by the center plate and is exposed in the direction of the guide plate.

[0037] The receiving portion 101 also includes a guide plate. The guide plate extends substantially in a plane extending parallel to the first cover wall 125. The guide plate is arranged between the first cover wall 125 and the center plate. The guide plate is attached to the housing bottom 7 but not directly to the housing base 105. A guide plate through-hole is provided for the guide plate, which is delimited radially outwardly by the guide plate relative to the longitudinal axis of the guide plate through-hole. The longitudinal axis of the guide plate through-hole extends coaxially with the longitudinal axis of the sleeve through-hole and also with the longitudinal axis of the nut through-hole.

[0038] The receiving part 101 also has a threaded assembly. This assembly comprises a screw with a shank 203, a shank flange 205, a screw head 207, and a nut 209. The shank flange 205 is connected to the shank 203 and has a support surface facing the receiving part contact portion 115. The screw head 207 is slidably guided radially relative to the receiving part insertion axis AS on the inner circumference of the operating through-hole in a non-deflecting manner.

[0039] Nut 209 is arranged in a nut through-hole delimited by the center plate. Nut 209 is connected to the receiving portion contact portion in a material-bonded and / or form-fitting manner. Furthermore, nut 209 can be completely overmolded on the side facing away from screw head 207, for example, with the material of the center plate.

[0040] Furthermore, the screw is threadedly engaged with its screw shaft 203 with a nut 209. A protective cap 211 is fixed to the side of the screw head 207 facing away from the screw shaft 203, so that the screw head 207 cannot be accessed from the outside.

[0041] Rod flange 205 can be made from the same material as screw shank 203 and / or be connected as one piece with screw shank 203. Alternatively, rod flange 205 can also be inserted on screw shank 203 until the stop of screw shank 203 and / or be threadedly engaged with screw shank 203.

[0042] In addition, the receiving part 101 has a sealing cap 221. The sealing cap 221 can seal the sleeve through-hole that is bounded outward by the operating sleeve 109, that is, it can be sealed from the radial outside relative to the receiving part plug-in axis AS. The sleeve through-hole has a base side through-hole portion and an outer through-hole portion. The base side through-hole portion is directly connected to the operating through-hole. The diameter of the operating through-hole is the same as the diameter of the base side through-hole portion. Therefore, the diameters of the operating through-hole and the base side through-hole portion are the same size. The outer through-hole portion is directly connected to the base side through-hole portion radially outward relative to the receiving part plug-in axis. The diameter of the outer through-hole portion is larger than the diameter of the base side through-hole portion, so that a circular shoulder surface is formed at the transition position between the base side through-hole portion and the outer through-hole portion.

[0043] The sealing cap 221 includes a cap base 223, an inner sleeve 225, an outer sleeve 227, and a preferably annular sealing element 229. The inner sleeve 225, outer sleeve 227, and cap base 223 collectively define a sealing cap annular groove. The sealing cap annular groove opens on the side facing away from the cap base 223. The sealing element 229 may be made of an elastomer, for example, and is fixed to the outer circumference of the inner sleeve 225.

[0044] The inner sleeve 225 extends from the cap bottom 223 perpendicularly to the cap bottom 223 and extends with an inner sleeve length. The value of the inner sleeve length corresponds to the value of the length of the outer through-hole portion. When the plug-in portion is inserted into the receiving portion contact space and the threaded device is in a tightened state, the protective cap 211 does not radially protrude out of the base side through-hole portion relative to the receiving portion plug-in axis AS, and therefore does not protrude into the outer through-hole portion. In this state, the sealing cap 221 can be fully inserted into the operating sleeve 109 so that the end face of the operating sleeve 109 facing the sealing cap 221 abuts against the cap bottom 223. Then, the sealing element 229 is clamped between the outer circumference of the inner sleeve 225 and the inner circumference of the outer sleeve 227, so that dust and moisture cannot invade the plug-in portion receiving space and / or the receiving portion contact space between the operating sleeve 109 and the sealing cap 221. When fully inserted into the operating sleeve 109, the inner circumference of the outer sleeve 227 locks with the outer circumference of the operating sleeve 109. If the sealing cap 221 is fully inserted into the operating sleeve 109 and locks with the outer circumference of the operating sleeve 109, the threaded assembly is ensured to be in its tightened state, as otherwise the protective cap 211 would still protrude into the outer through-hole portion. The sealing cap 221 would then not be fully inserted into the operating sleeve 109 and would not lock with the outer circumference of the operating sleeve 109. This allows the worker manufacturing the plug-in system to determine whether the threaded assembly is properly tightened when installing the sealing cap 221.

[0045] The plug 1 can be connected to an electrical component such as a charging socket or a high-voltage dual-rail system via the plug housing and the plug contacts 15. The receiver is similarly connected: the receiver 101 can be connected to an electrical component such as a charging socket or a high-voltage dual-rail system via the receiver housing and the receiver contacts 115.

[0046] The following describes a method for manufacturing the plug system 1000. The method comprises a preparation step, a plugging step, a screw step and a sealing cap step.

[0047] In a preliminary step, the plug part 1 and the receiving part 101 are provided, including the screw assembly. The screw with its shank 203 is only slightly screwed into the nut 209, leaving a sufficiently large gap between the support surface of the shank flange 205 and the socket contact surface 145 of the socket contact 115 so that the plug contact 15 can be pushed into this gap during the production of the plug system 1000. The screw assembly is in its loosened state.

[0048] The plug-in step is performed immediately after the preparation step. In the plug-in step, the plug-in axis SS of the plug-in part and the plug-in axis AS of the receiving part are aligned with each other. In the plug-in step, the plug-in part 1 is inserted into the contact space 121 of the receiving part along the positive direction of the plug-in axis of the plug-in part and / or the negative direction of the plug-in axis of the receiving part until the shell base 5 abuts against the shell bottom 107 of the receiving part, thereby forming a plug-in device. During plug-in, the base part 141 is guided in the contour groove 59, and the shell base 5 is guided on the inner circumference of the shell base 105. The plug-in part 1 can be inserted into the receiving part contact space 121 in a manner without contour interference when the threaded device is pre-installed, which is achieved in particular due to the aforementioned notch that is bounded by the plug-in part 1. The plug-in device is in Figure 5 In the plug-in connection, the sealing element 17 is clamped between the outer circumference of the housing base body 5 and the inner circumference of the housing base body 105. In the region of the sealing element 17, the inner circumference of the housing base body 105 is offset radially outwards relative to the receiving part plug axis AS compared to the rest of the inner circumference of the housing base body 105.

[0049] The screwing step is performed immediately after the insertion step. In this step, the threaded device is screwed through the operating through-hole using a tool under a predetermined torque, thereby transitioning to its tightened state, thereby building up pressure and creating plug system 1000. In the tightened state, the plug contact portion 15 and the receiving contact portion 115 are clamped under pressure between the shank flange 205 and the nut 209. Specifically, under the action of pressure, the plug contact surface 61 is pressed against the receiving contact surface 145, enabling high electrical power to be transmitted through the plug contact surface 61 and the receiving contact surface 145 while maintaining low contact resistance in plug system 1000.

[0050] The plugging step is followed by the sealing cap step. During this step, sealing cap 221 is fully inserted onto operating sleeve 109, ensuring that plug system 1000 is fully touch-protected by sealing cap 221. Furthermore, a sealing element 229 is clamped between sealing cap 221 and operating sleeve 109, preventing dust and moisture from penetrating into the plug contact space 21 and / or the receiving contact space 121. Sealing cap 221 can be coupled to a high-voltage interlock system, so that when sealing cap 221 is removed from operating sleeve 109, the vehicle's high-voltage system is de-energized.

[0051] Reference Signs List 1 connector 5 Shell base 7 Shell bottom 9 Shell outer sleeve 15. Connector contact 17 Sealing element 21 Contact space of the plug 23 Annular groove 25 Cover wall 27 Covering the wall 31 Matrix gap 33 Contact notch 41 base part 43 Touch protection shoulder 45 middle piece gap 53 Outline bottom 55 profile sidewall 57 Profile flange 59 Contour groove 61 Connector contact surface 101 Receiving Department 105 shell base 107 Shell bottom 109 Operation hole 115 receiving part contact part 121 Receiving part contact space 125 Covering the wall 127 Wall Cover 141 base part 143 Touch protection part 145 receiving portion contact surface 203 screw rod 205 rod flange 207 screw head 209 Nut 211 protective cap 221 sealing cap 223 cap bottom 225 inner sleeve 227 coat 229 sealing element 1000 Plug-in System SS plug-in axis AS receiving part plug-in axis

Claims

1. A plug-in system comprising: Connecting portion (1), Receiving unit (101), in, The plug-in part housing of the plug-in part (1) is inserted into the receiving part contact space (121), and the receiving part contact space is bounded outwardly by the receiving part housing of the receiving part (101), so that the plug-in part contact surface (61) of the plug-in part contact part (15) of the plug-in part (1) is in abutment contact with the receiving part contact surface (145) of the receiving part contact part (115) of the receiving part (101), and wherein the plug-in part contact surface (61) and the receiving part contact surface (145) are pressed against each other by the pressure applied by the threaded device of the plug-in system (1000), preferably by the pressure applied by the threaded device of the plug-in system (1000) when the threaded device is tightened.

2. The plug-in system according to claim 1, characterized in that The pressure force preferably acts substantially perpendicularly to the plug-in contact surface (61) and / or the receiving contact surface (145), and / or The threaded arrangement preferably extends substantially perpendicularly to the plug-type contact surface (61) and / or the receiving-type contact surface (145).

3. The plug-in system according to claim 1 or 2, characterized in that The threaded arrangement comprises a screw and a nut (209), wherein the screw has a screw head (207), a screw shank (203) and a shank flange (205) fixed to the screw shank (203) and preferably spaced apart from the screw head (207), and The plug-in contact portion (15) and the receiving portion contact portion (115) are pressed between the rod flange (205) and the nut (209) under pressure.

4. The plug-in system according to claim 3, characterized in that The rod flange (205) has a support surface facing the plug contact portion (15), In this case, the shaft flange (205) is pressed with its supporting surface preferably directly and / or electrically conductively against the plug contact (15).

5. The plug-in system according to claim 3 or 4, characterized in that The rod flange (205) is connected to the screw rod (203) in a material-unified manner and / or is connected to the screw rod (203) as a whole, and / or The shank flange (205) is pushed and / or screwed onto the screw shank (203) and preferably rests on a shoulder of the screw shank (203) or a stop of the screw shank (203), It is preferably provided that the rod flange (205), preferably the internal thread of the rod flange (205), is threadedly engaged with the screw shaft (203), preferably the external thread of the screw shaft (203).

6. The plug-in system according to any one of the preceding claims, characterized in that A contact notch (33) is provided corresponding to the plug-in contact portion (15), wherein the contact notch (33) is at least partially bounded outwardly by the plug-in contact portion (15), and / or opens in the direction of the positive plug-in axis (SS) of the plug-in portion, and / or A base notch (31) is correspondingly provided for the housing base (5) of the plug housing, wherein the base notch (31) is bounded outward by the housing base (5) of the plug housing and / or opens in the direction of the positive plug axis of the plug axis (SS) of the plug housing.

7. The plug-in system according to any one of the preceding claims, characterized in that The housing base (5) of the plug housing, the housing bottom (7) of the plug housing and the housing outer sleeve (9) of the plug housing define the boundaries of an annular groove (23) surrounding the housing base (5), wherein it is preferably provided that the annular groove (23) opens in the direction of the positive plug axis of the plug axis (SS) of the plug.

8. The plug-in system according to claim 7, characterized in that A preferably annular sealing element (17) is arranged in the annular groove (23). It is provided that the sealing element (17) in the plug-in system (1000) seals a gap between the housing base (5) of the plug-in housing, preferably the outer peripheral surface of the housing base (5) of the plug-in housing, and the housing base (105) of the receiving housing, preferably the inner peripheral surface of the housing base (105) of the receiving housing.

9. The plug-in system according to any one of the preceding claims, characterized in that The housing base (105) of the receiving portion housing has an operating through hole for screwing the screw, and The threaded device has a protective cap (211) as a touch protection element, the protective cap (211) being connected to the screw head (207) on the side of the screw head (207) facing away from the screw shaft (203) and preferably preventing the screw head (207) from being directly touched through the operating through-hole, It is preferably provided that the material of the protective cap (211) is a non-conductive material and / or an electrically insulating material.

10. The plug-in system according to claim 9, wherein: The receiving portion (101) has an operating sleeve (109), which is arranged externally on the housing base (105) of the receiving portion (101) and defines a sleeve through-hole aligned with the operating through-hole to the outside, and The plug-in system (1000) has a sealing cap (221), which is designed and / or suitable so that the sealing cap (221) can be completely pushed onto the operating sleeve (109) and / or can be connected to the outer peripheral surface of the operating sleeve (109) in a form-fitting manner only when the threaded device is in a tightened state, preferably when the plug-in part (1) is fully inserted into the receiving part contact space (121).

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