On-board power supply connector

Abstract

On-board power connectors, especially for high-voltage on-board power supplies, - a first connection part (12) arranged in a first housing part (2), wherein - the first housing part (2) has a longitudinal extension along a longitudinal axis (4) and has an end-face opening (14) and the first connecting part (12) is movably mounted in the first housing part (2) along the longitudinal axis (4), - a second connection part arranged in a second housing part (40), wherein - the second housing part (40) has a longitudinal extension along a longitudinal axis (36) and has an opening at the end face, - wherein the connector is in the connected state - the longitudinal axes (4, 36) of the first and second housing parts (2, 40) run collinearly and - the second housing part (40) is fixed at least in the longitudinal direction relative to the first housing part (2) and the second connection part is in mechanical contact with the first connection part (12), wherein - the first connecting part (12) is resiliently mounted in the first housing part (2) along the longitudinal axis (4) by a spring element (26), characterized by - that one of the connecting parts (12) has a sleeve-shaped receptacle (28) with a closed bottom (28a) and one of the connecting parts has a rod-shaped plug-in element (32) congruent with the receptacle (28) and - that in the sleeve-shaped receptacle (28) a spacer (18) extends from the bottom (28a) of the sleeve-shaped receptacle (28) towards the end-face opening (14) of the sleeve-shaped receptacle (28), wherein - the rod-shaped plug-in element (32) has a recess (46) extending from the end face of the plug-in element (32) in a longitudinal axis for the spacer (18) of the sleeve-shaped receptacle (28) and that in the connected state the spacer (18) is inserted into the recess (46).

Description

[0001] The subject matter concerns an electrical connector, specifically for a motor vehicle electrical system, particularly in a car, truck, or other motorized vehicle. The electrical connector is particularly suitable for high-voltage electrical systems.

[0002] In automotive applications, there are various types of high-voltage electrical systems. On the one hand, these can be systems with voltages exceeding 12V, for example, 24V or 48V. Due to the increasing number of comfort features in vehicles, the advantage of 48V systems is becoming more widely recognized. However, these require different connectors than those needed for conventional 12V systems. On the other hand, a high-voltage electrical system can also refer to the powertrain, particularly in electric vehicles. The powertrain is often operated at voltages of several hundred volts, for example, around 400V. These systems operate not only at high voltages but also at high currents, as significantly more power is required to propel the vehicle than to operate comfort features. Such electrical systems also place particularly high demands on the connectors.

[0003] DE 197 11 376 A1 discloses an electrical plug connection in which plug contacts and coupling contacts are arranged in insulating retaining pieces and protected by a metallic sheath, with a tight routing of the connecting leads being provided.

[0004] DE 10 2017 205 454 A1 describes a plug connection with a contact pin that is mounted in a through hole of a U-shaped bent busbar to compensate for manufacturing tolerances and to ensure a stable electrical connection.

[0005] DE 10 2010 040 787 A1 discloses a device with a charging socket and a charging plug, wherein the electrical connection between an electrical cable and electronics is established in a housing.

[0006] The CN 203 423 322 U shows a cable connector that can be opened automatically.

[0007] US 4 580 862 A shows a cable connector with two housing parts.

[0008] US 3 091 748 A shows a cable connector with two housing parts.

[0009] Especially in highly dynamic automotive applications, stringent demands are placed on the mechanical stability of electrical connectors. These connectors must ensure a consistently stable and electrically reliable connection. Due to the sometimes high currents involved, the contact resistance of such connectors is also subject to high requirements in order to minimize heat loss at the interface. This necessitates large contact areas between the mating components.

[0010] The objective is to ensure a permanently stable, electrically sound connection with low contact resistance and high resistance to dynamic loads. A vehicle electrical system connector according to claim 1 is proposed as a solution.

[0011] This electrical connector has a first housing part. A first terminal is arranged within this first housing part. The housing part extends longitudinally along a longitudinal axis. The housing part consists primarily of side walls, a base, and an open cover. When the term "side walls" is used here and subsequently, it always refers to the singular form.

[0012] The cover can also be referred to as the end face. The housing is formed in one piece from the walls, base, and end face. The housing part has an opening at its end face. The connecting part, located inside the housing part, is movably arranged within the housing part along its longitudinal axis. The connecting part can perform translational movement within the housing part along its longitudinal axis.

[0013] The connector has a second housing part in addition to the first. A second terminal part is arranged within this second housing part. Like the first housing part, the second housing part is also formed from side walls, an open top, and a base. The top can also be referred to as the end face. The housing is preferably formed in one piece from the walls, base, and end face. The housing part has an opening at its end face. The terminal part arranged within the housing part is preferably fixed within the housing part with respect to its longitudinal axis.

[0014] To connect the two housing parts, one is inserted into the other, bringing the connecting parts into electrical contact. These connecting parts are made of electrically conductive material and / or coated. Specifically, they can be made of a copper or aluminum alloy. A coating of the connecting parts, particularly on the surfaces that come into contact when connected, is also possible. This coating could be metallic, especially tinning.

[0015] In the connected state of the connector, the housing parts are inserted into one another in such a way that their longitudinal axes preferably run collinearly to each other. Furthermore, the second housing part is fixed relative to the first housing part, at least in the longitudinal direction, and the second terminal part is in mechanical contact with the first terminal part. The contact surfaces of the terminal parts are in contact with each other. These contact surfaces are, in particular, an outer surface of one terminal part that is in direct contact with an inner surface of another terminal part.

[0016] To establish a reliable electrical connection, the contact surfaces must be firmly joined. Furthermore, for dynamic stability, this connection must be secured even in dynamic environments. It is proposed that the first terminal is resiliently mounted along its longitudinal axis within the first housing part by a spring element. When the second housing part is connected to the first, the first and second terminals come into contact. The joining of the housing parts results in a clamping force of the second housing part against the first along its longitudinal axis, counteracting the spring force of the spring element. The spring element is thus compressed in the connected state, creating a permanent spring force acting on the connection between the two terminals.The first connecting part is moved longitudinally in the first housing part against the spring force.

[0017] One of the connection parts is a sleeve-shaped receptacle, and the other is a rod-shaped plug-in element congruent with the receptacle. The receptacle and the plug-in element are preferably arranged centrally in their respective housing parts and extend longitudinally. The receptacle and the plug-in element are preferably located on the central axis of the respective housing part.

[0018] The sleeve-shaped receptacle serves to hold the plug-in element. When connected, an inner surface of the sleeve-shaped receptacle comes into direct contact with an outer surface of the plug-in element. The housing part containing the connector with the sleeve-shaped receptacle is inserted into the housing part containing the connector with the rod-shaped plug-in element. An annular space forms between the inner surface of the housing part and the rod-shaped plug-in element. The other housing part, including its sleeve-shaped receptacle, is inserted into this annular space. The housing part with the sleeve-shaped receptacle is inserted into the end opening of the housing part containing the plug-in element. This pushes the plug-in element into the end opening of the housing part containing the sleeve-shaped receptacle. Thus, the outer surface of the plug-in element comes into contact with the inner surface of the sleeve-shaped receptacle.

[0019] It is proposed that, in the connected state, the plug-in element is inserted into the receptacle and the spring element is compressed. The spring element is, in particular, a steel spring, preferably a compression spring. However, the spring element can also be made of a plastic material. The spring element can be compressed resiliently along its longitudinal axis, whereby, in the compressed state, the spring element exerts a force on the connecting part such that it is pressed against the other connecting part. Since, in the connected state, the housing parts are fixed longitudinally relative to each other, the spring force acts on the contact surface between the two connecting parts.

[0020] According to one embodiment, it is proposed that, in the connected state, one of the housing parts is at least partially inserted into the end-face opening of the other housing part. This insertion brings the sleeve-shaped receptacle and the plugging element into direct contact with each other.

[0021] The sleeve-shaped receptacle preferably extends longitudinally within the housing part along its longitudinal axis. The sleeve-shaped receptacle has tubular side walls, a bottom at one end, and an opening at the other end. The opening of the sleeve-shaped receptacle is aligned with the opening of the housing part. The bottom is preferably closed. The housing part has a shape surrounding the sleeve-shaped receptacle and is also preferably sleeve-shaped with tubular side walls.

[0022] The rod-shaped plug-in element has a longitudinal extension. Within the housing part in which the rod-shaped plug-in element is installed, the plug-in element extends longitudinally along the longitudinal axis of the housing part. The plug-in element preferably has a tubular outer surface, which is congruent with the tubular inner surface of the sleeve-shaped receptacle. The tubular plug-in element is surrounded by the housing part, with the side walls of the housing part, in particular the inner surface of the side walls of the housing part, running parallel to the outer surface of the plug-in element. In particular, the outer surface of the housing part containing the plug-in element is congruent with an inner surface of the housing containing the sleeve-shaped receptacle. Thus, the housing containing the sleeve-shaped receptacle can be inserted into the housing containing the plug-in element, and the housing parts abut each other with their inner and outer surfaces.

[0023] When connected, the first housing part is inserted into the front opening of the second housing part, or the second housing part is inserted into the front opening of the first housing part.

[0024] According to one embodiment, it is proposed that the receptacle tapers from an opening at the end face towards a base, in particular conically. This taper of the receptacle results in a better positive fit between the plug-in element and the receptacle. In particular, the plug-in element can be inserted into the receptacle to such an extent that the contact surfaces, i.e., the outer surface of the plug-in element and the inner surface of the receptacle, are always in contact with each other. The taper, especially the conical taper, serves to compensate for tolerances, since direct mechanical contact between the plug-in element and the receptacle is always ensured when the plug-in element is inserted.

[0025] It is also proposed that the plug-in element tapers towards its end face, in particular conically. The plug-in element and the receptacle are preferably congruent in shape and, in particular, have congruent tapers so that, when inserted into the receptacle, the plug-in element's outer surface rests against the receptacle's inner surface. The spring element exerts a contact pressure on the plug-in element against the receptacle, or vice versa. The spring force acting along the longitudinal axis presses the plug-in element and the receptacle together so that their contact surfaces are firmly connected.

[0026] According to one embodiment, it is proposed that, in the connected state, an inner surface of the receptacle and an outer surface of the plug-in element are in direct contact with each other. This direct contact ensures good electrical conductivity at the interface. Ohmic losses are reduced, particularly by the large contact areas provided by the congruent surfaces.

[0027] In the receptacle, a spacer extends from the base of the receptacle to an opening at its end face. The longitudinally extending opening of the housing part and the longitudinally extending opening of the sleeve-shaped receptacle are, in particular, collinear. The spacer can be positioned on the central axis. The spacer also extends along the longitudinal axis from the base to the opening at the end face of the receptacle. The spacer can be rod-shaped. In the sleeve-shaped receptacle, an annular space is formed between the spacer and the inner surface of the sleeve-shaped receptacle. The spacer serves to ensure that the plug-in element can only be inserted into the receptacle to a certain extent. This prevents excessively tight locking between the receptacle and the plug-in element.

[0028] In order to insert the plug-in element into the receptacle, the element must accommodate the spacer. For this purpose, the plug-in element has a recess extending along its longitudinal axis from its end face. The housing part containing the plug-in element also has a receptacle within which the plug-in element is arranged. This receptacle extends along the longitudinal axis. The plug-in element also extends along the longitudinal axis. The longitudinal axes of the housing part's receptacle and the plug-in element's receptacle are preferably collinear. Within the plug-in element, the recess, for example in the form of a bore, can then be provided on the plug-in element's central axis.

[0029] The spacer engages in this recess when installed. That is, when the plug-in element is inserted into the sleeve-shaped receptacle, the spacer is simultaneously pushed into the recess. The recess has a certain depth within the plug-in element. Within the recess, for example, the base, a stop is formed for the spacer. This ensures that the plug-in element is only inserted into the sleeve-shaped receptacle to a certain depth, namely until the spacer rests against the stop of the recess.

[0030] According to one embodiment, it is proposed that the first connecting part is connected to a flexible cable. The first connecting part is resiliently hinged to the spring element and is translationally displaceable within the housing part along its longitudinal axis. To prevent the cable connected to the connecting part from unduly affecting this displaceability, it is proposed that the flexible cable be inserted into the interior of the first housing part through a feedthrough and be movably mounted in the feedthrough along its longitudinal axis, or that the first connecting part be led out of the interior of the housing part through a feedthrough and be movably mounted in the feedthrough along its longitudinal axis. The feedthrough, in particular, has a longitudinal extension along a longitudinal axis that is parallel, preferably collinear, to the longitudinal axis of the housing part or the receptacle.The feedthrough preferably runs parallel to the longitudinal axis, so that the movement of the connecting part relative to the spring element along the longitudinal axis is not hindered by the movement of the cable or the connecting part within the feedthrough. The direction of movement of the cable or the connecting part within the feedthrough is preferably parallel to the direction of movement of the connecting part within the housing part relative to the spring element.

[0031] According to one embodiment, it is proposed that the first connecting part is mounted on a radially inwardly projecting collar at the end face opening of the housing part, within the housing part. This collar preferably preloads the spring element. The spring element is articulated to the connecting part such that it exerts a spring force on the connecting part in the direction of the end face opening of the housing part. The collar secures or mounts the connecting part within the housing part. The spring element can first be inserted into the housing part through the end face opening. Subsequently, the connecting part is pressed against the spring element through the end face opening and pushed into the housing part.

[0032] To secure the connector within the housing element, the collar can then be placed onto the end face opening of the housing element and snapped into place. For this purpose, the collar can, in particular, have a circumferential surface that rests against the inner surface of the housing element's receptacle and snaps into place there when installed. This can be achieved by a locking mechanism between the recessed and projecting surfaces of the collar and the inner surface of the housing element. The circumferential surface of the collar can be located in an annular space between the outer surface of the first connector and the inner surface of the first housing element. The collar secures the connector in its translational movement along its longitudinal axis towards the end face opening, thus preventing it from being lost within the first housing element.The spring element acts on the connecting part towards the bottom of the housing part, and a force must be applied against the spring force to push the connecting part away from the collar towards the bottom of the first housing part.

[0033] According to one embodiment, it is proposed that the spring element is mounted between a base of the first housing part and a shoulder of the first connecting part that is at least partially circumferential and projecting radially outward. The first connecting part can have two sections with different outer diameters. In the installed state, the first section faces the end face of the first housing part and has an outer diameter approximately equal to the inner diameter of the housing part. The second section of the connecting part can have a smaller diameter and thus be formed as a step or recess. The spring element can be arranged in the resulting space between the connecting part and the first housing part and articulated to the step.When the connector is connected, the spring element is compressed and presses against the shoulder with a spring force parallel to the longitudinal axis, so that the first connecting element is pressed towards the end face opening of the first housing part.

[0034] According to one embodiment, it is proposed that a circumferential seal be arranged on an outer surface of one of the housing parts, which, when connected, is in contact with an inner surface of the other housing part; or that a circumferential seal be arranged on an inner surface of one of the housing parts, which, when connected, is in contact with an outer surface of the other housing part; or that a circumferential seal be arranged between an inner surface of one of the housing parts and an outer surface of the other housing part. Any gap that may form between the outer surface of the first housing part and the inner surface of the other housing part when connected can be sealed by this seal, thus protecting the connection between the sleeve-shaped receptacle and the plug-in element from environmental influences.

[0035] According to one embodiment, it is proposed that the second connecting part is bonded to an electrical conductor, in particular a solid conductor. The electrical conductor, especially a flat conductor, may be stripped at one end or along its length. In the area of ​​the stripped insulation, the plug-in element in the form of a bolt may be arranged on a wide surface of the flat conductor, in particular welded or screwed on. This bolt can then serve as the plug-in element.

[0036] It is proposed that the second housing part has a conductor receptacle for receiving the conductor, in particular that the conductor receptacle is continuous and accommodates the conductor along its direction of propagation. The second housing part can receive the conductor. For this purpose, the conductor receptacle can have a cover that is hinged, in particular in the form of a film hinge, to the rest of the housing part. The conductor is inserted into the conductor receptacle, in particular with its stripped section. The insulation of the conductor is also located within the area of ​​the conductor receptacle. The cover of the conductor receptacle can then be placed on the conductor on the other side of the conductor, the side facing away from the rest of the second housing part, thus closing the conductor receptacle.Seals can be provided around the conductor receptacle in the area of ​​the conductor entry points to prevent moisture from entering the receptacle along the length of the conductor. The cover of the conductor receptacle can be securely fixed to the rest of the second housing part, in particular by clipping or snapping.

[0037] Starting from the conductor receptacle, the housing part preferably extends in a surface normal to the wide surface of the conductor. In particular, the conductor receptacle extends perpendicular to the longitudinal axis of the second housing part. The longitudinal axis of the second housing part and the conductor receptacle, or the conductor inserted into the conductor receptacle, are perpendicular to each other, preferably perpendicular.

[0038] According to one embodiment, it is proposed that an insulator be arranged on the end face of the second connection part, covering the end face. The second connection part is preferably the plug-in element. This plug-in element is located in the second housing part. For protection against accidental contact, it may be advantageous to insulate this plug-in element on its end face within the housing, thus preventing unintentional contact with the plug-in element's end face.

[0039] According to one embodiment, it is proposed that the insulator has an opening formed to receive the spacer, in particular that the opening is coaxial with the recess of the plug-in element. This provides the insulator with protection against contact and also allows the plug-in element and the receptacle with the spacer to be connected together.

[0040] According to one embodiment, it is proposed that a fastening lever, pivotable about an axis perpendicular to the longitudinal axis, is arranged on one of the housing parts. In the connected state, this lever engages with a fastening element on the other housing part. This ensures that the connecting parts are fixed to each other longitudinally. The housing parts are inserted into one another and fixed to each other, at least in the direction of the longitudinal axis, by means of the fastening lever and fastening element.

[0041] The subject matter is explained in more detail below with reference to a drawing showing an exemplary embodiment. The drawing shows: Fig. 1 a view of a first housing part; Fig. 2 the first housing part at a connection console; Fig. 3 a longitudinal section through a first housing part; Fig. 4 an arrangement between a first housing part and a plug-in element; Fig. 5 a first plug-in element in a second housing part; Fig. 6. A cross-sectional view through a vehicle electrical system connector in the unconnected state; Fig. 7 A view of a vehicle electrical system connector in the connected state; Fig. 8 a sectional view through a vehicle electrical system connector in the connected state; Fig. 9 a first housing part according to a second embodiment; Fig. 10 a sectional view through a first housing part in the unconnected state; Fig. 11 a sectional view through a first housing part in the connected state; Fig. 12 a sectional view of a battery connector according to a second embodiment in the connected state; Fig. 13 A view of a vehicle electrical system connector in the connected state.

[0042] Fig. Figure 1 shows a first housing part 2 of a vehicle electrical system connector. The housing part 2 extends along a longitudinal axis 4 in a longitudinal direction. The first housing part 2 has an outer surface 2a and is bounded by an end face 2b. On the side opposite the end face 2b, in particular at a base 2c of the first housing part, a flange 6 can project radially from the outer surface 2a. In the region of the base 2c, the housing part 2 has a through-opening through which a flexible cable 8 is guided.

[0043] A circumferential seal 10 can be provided on the outer surface 2a between the front face 2b and the bottom 2c.

[0044] Inside the housing part 2, a connecting part 12 is provided. The connecting part 12 extends towards an opening 14 on the end face 2b. The connecting part 12 is attached to a collar 16. The connecting part 12 can be moved parallel to the longitudinal axis 14 within the housing part 2. A spacer 18, which may be metallic or non-metallic, may be provided inside the connecting part 12.

[0045] For mounting the vehicle electrical system connector, for example in the area of ​​a cable gland, an underbody gland, an entry into a housing or the like, as described in Fig. As shown in Figure 2, the flange 6 is screwed to an attachment 20. The attachment 20 can be a body panel, a body floor, a housing wall, an interior wall, or the like of a motor vehicle. The cable 8 can be routed through the attachment 20 and, for example, connected to a rigid or flexible flat conductor 21.

[0046] The internal structure of housing part 2 is shown in the Fig. Figure 3 shows a longitudinal section. It can be seen that the housing part 2 extends longitudinally along the longitudinal axis 4. A cable gland 22 is provided in the area of ​​the bottom 2c of the housing part 2, through which the cable 8 is guided into the interior of the housing part 2, preferably in a sealed manner. The cable 8 is slidably arranged in the cable gland 22 along the longitudinal axis 4. A seal 24 can be provided on the bottom side of the flange 6, wherein this seal 24 is in contact with the attached part 20 in the connected state and thereby provides a seal at the flange 6.

[0047] The housing part 2 is sleeve-shaped on its interior. Inside the housing part 2, which can be formed, for example, as a hollow cylinder, a spring 26 can rest against the base 2c. The spring 26 extends within the housing part 2 along the longitudinal axis 4. Extending from the base 2c, the connecting part 12 is arranged within the housing part 2, following the spring 26. The connecting part 12 has a radially outwardly projecting shoulder 12a and thus two sections with different diameters. The section with the smaller diameter is shaped such that the spring 26 is movably arranged in an annular space between the connecting part 12 and the inner surface of the housing part 2. The spring 26 is supported by the shoulder 12a, where the section with the smaller diameter transitions into the section with the larger diameter.

[0048] The connecting part 12 extends further towards the front face 2b. In the area of ​​the front face 2b, the front surface of the connecting part 12 is attached to the collar 16.

[0049] To assemble the housing part 2, the spring 26 is first inserted into the opening at its end. The connecting part 12 is then placed onto the spring 26 with its shoulder 12a, and the spring 26 is preferably pre-tensioned. By sliding it in along its longitudinal axis 4, the connecting part 12 is fully inserted into the interior of the housing part 2. The collar 16 is then engaged inside the housing part 2 with a locking lug 16a. The collar 16 secures the connecting part 12 inside the housing part 2. However, the connecting part 12 can be pressed longitudinally against the spring force of the spring 26 towards the base 2c of the housing part 2.

[0050] The connecting part 12 has a receptacle 28 on its side facing away from the cable 8. The receptacle 28 has a base 28a and an end-face opening 28b. The receptacle 28 extends towards the base 28a in a conical shape. A spacer 30 can be arranged in the receptacle 28 at the base 28a, particularly in the area of ​​the shoulder 12a. Both the receptacle 28 and the spacer 30 extend parallel to each other along the longitudinal axis 4.

[0051] Corresponding to the recording 28, the on-board power supply connector has a plug element 32, as shown in the Fig. 4 is shown. Fig. Figure 4 shows housing part 2 according to the Fig. 1. Opposite the mounting 28, the plug-in element 32 can be arranged on a flat cable 34. The flat cable 34 can be stripped of its insulation 34a at its end (not shown) or along its length, exposing the bare conductor 34b. The plug-in element 32 can be attached to this bare conductor 34b, in particular by friction welding, for example. The flat part 34 extends along a longitudinal axis 36. The longitudinal axis 36 is, in particular, parallel to the surface normal on the surface to which the plug-in element 32 is attached to the flat cable 34.

[0052] The plug-in element 32 can have an insulator 38 on an end face which, in the installed state, faces the housing part 2. The insulator 38 can be a cap-shaped element resting on the end face of the plug-in element 32 and may have a through-opening.

[0053] The plug-in element 32 together with insulator 38 is received by a second housing part 40, as shown in Fig. Figure 5 shows that the second housing part 40 can have a cover 40a and a plug-in area 40b. The plug-in area 40b is designed to receive the first housing part 2 and has an opening extending parallel to the longitudinal axis 36. The plug-in element 32 runs within this opening, preferably concentrically to the opening. The plug-in element 40b has an inner surface 40c in the area of ​​the opening, which is congruent with the outer surface 2a of the first housing part 2.

[0054] The plug-in element 32 is connected from a flange 32a according to Fig. 4 tapered in the direction of the insulator 36. In particular, the outer surface of the plug-in element 32 is congruent with the inner surface of the receptacle 28.

[0055] The flat cable 34 is sealed within the area of ​​the bare conductor 34b by the cover 40a of the housing part 40. For this purpose, the cover 40a can be hinged to the plugging area 40b, in particular by a film hinge, and snapped into place.

[0056] A fastening lever 42 can be provided on the housing part 40. The fastening lever 42 is pivotally mounted on the outer surface of the plug-in area 40. The fastening lever 42 is pivotally mounted on the housing part 40 about an axis perpendicular to the longitudinal axis 36. The fastening lever 42 interacts with a receptacle 44 on the first housing part 2, so that the housing parts 2 and 40 can be fixed relative to each other in the direction of the longitudinal axis 36 / 4.

[0057] Fig. Figure 6 shows the two housing parts 2 and 40 in a longitudinal section. It can be seen that the plug-in area 40a receives the plug-in element 32 in a sealed connection to the bare conductor 34b. A bore 46 may be provided within the plug-in element 32. The insulator 38 covers the end face of the plug-in element 32 and extends into the bore 46. The bore 46 corresponds to the spacer 18. The spacer 18 extends along the longitudinal axis 4, and the bore 36 extends along the longitudinal axis 36. To join the two housing parts 2 and 40, housing part 2 is inserted into the opening of housing part 40. Here, the spacer 38 engages with the bore 46. The inner surface of the receptacle 28 comes into contact with the outer surface of the plug-in element 32. The connecting part 12 is pushed onto the plug-in element 32 until the spacer 18 abuts the bottom of the bore 46.

[0058] When assembled, the fastening lever 42 is as shown in Fig. 7 shown, folded over and engages with the receptacles 44. This fixes the two housing parts 2, 40 relative to the longitudinal axis 4, 36, which run collinearly in the assembled state.

[0059] As in the Fig. As can be seen in Figure 8, in the assembled state, the connector 12 is pushed over the plug-in element 32. The outer surface of the plug-in element 32 is in direct contact with the inner surface of the receptacle 28 of the connector 12. Due to the sliding action, the spring 26 is compressed compared to its unassembled state. The spring 26 exerts a force on the connector 12 in the direction of the plug-in element 32. This results in a tight, dynamically stable, and permanent contact between the connector 12 and the plug-in element 32, thus ensuring good electrical contact. During the sliding action, the connector 12 is moved towards the base 2c. The cable 8 is also moved through the cable gland 22.

[0060] Fig. Figure 9 shows another alternative of a first housing part 2. Here, the cable 8 is attached to the connector 12 outside the housing part 2, and the connector 12 is movably arranged in the cable gland 22. This is shown in the Fig. Figure 10 shows again the cable 8, which is electrically and mechanically connected to the terminal 12 outside the housing part 2. The terminal 12 can be moved parallel to the longitudinal axis 4 inside the housing part 2, and this movement can tension the spring 26.

[0061] Fig. Figure 11 shows the first housing part 2 according to the Fig. 9 in the installed state, i.e., when the spring 26 is compressed. It can be seen that compared to the Fig. 10. The connecting part 12 is partially pushed out of the housing part 2. The spring 26 is tensioned.

[0062] Fig. Figure 12 shows the connector according to the Fig. Figures 9-11 show a longitudinal section in the assembled state. It can be seen that in this state, the plug-in element 32 is held within the receptacle of the connector 12. The spring 26 presses the connector 12 towards the plug-in element 32. The housing parts 2 and 40 are fixed relative to each other by the fastening lever 42.

[0063] Fig. Figure 13 shows the connector according to the Fig. Figure 12 shows the fixing of the fastening lever 42 to the receptacles 44, so that the two housing parts 2, 40 are fixed relative to each other. The connecting part 12 is at least partially pushed out of the housing part 2. Reference symbol list 2 Housing part 2a outer lateral surface 2b Front 2c floor 4 Longitudinal axis 6 flange 8 cables 10 Seal 12 Connection part 12a Shoulder 14 Opening 16 collars 18 spacer 20 attachment 21 flat conductors 22 Cable feedthrough 24 Seal 26 springs 28 recording 30 spacer 32 plug-in elements 34 flat cables 34a Insulation 34b bare conductor 36 Longitudinal axis 38 Insulator 40 Housing part 40a lid 40b plug area 40c inner surface area 42 fastening levers 44 recordings 46 bore

Claims

A vehicle electrical system connector, in particular for high-voltage vehicle electrical systems, comprising: - a first connection part (12) arranged in a first housing part (2), wherein: - the first housing part (2) has a longitudinal extension along a longitudinal axis (4) and has an end-face opening (14), and the first connection part (12) is movably mounted in the first housing part (2) along the longitudinal axis (4); - a second connection part arranged in a second housing part (40), wherein: - the second housing part (40) has a longitudinal extension along a longitudinal axis (36) and has an end-face opening; - wherein, in the connected state of the connector: - the longitudinal axes (4, 36) of the first and second housing parts (2, 40) are collinear, and - the second housing part (40) is fixed relative to the first housing part (2) at least in the longitudinal direction, and the second connection part is in mechanical contact with the first connection part (12).wherein- the first connecting part (12) is resiliently mounted in the first housing part (2) along the longitudinal axis (4) by a spring element (26), characterized in that- one of the connecting parts (12) has a sleeve-shaped receptacle (28) with a closed bottom (28a) and one of the connecting parts has a rod-shaped plug-in element (32) congruent with the receptacle (28) and- that a spacer (18) extends in the sleeve-shaped receptacle (28) from the bottom (28a) of the sleeve-shaped receptacle (28) towards the end-face opening (14) of the sleeve-shaped receptacle (28), wherein- the rod-shaped plug-in element (32) has a recess (46) extending from the end face of the plug-in element (32) in the longitudinal axis for the spacer (18) of the sleeve-shaped receptacle (28) and that in the connected state the spacer (18) is inserted into the recess (46). is., On-board power supply connector according to claim 1, characterized in that, in the connected state, the rod-shaped plug element (32) is inserted into the sleeve-shaped receptacle (28) and the spring element (26) is compressed and / or, in the connected state, one of the housing parts (2, 40) is at least partially inserted into the end face opening (14) of the other of the housing parts (2, 40), in particular, that in the connected state, the first housing part (2) is inserted into the end face opening of the second housing part (40), or that in the connected state, the second housing part (40) is inserted into the end face opening (14) of the first housing part (2). On-board power connector according to claim 2, characterized in that the sleeve-shaped receptacle (28) tapers from the end face opening (14) towards the bottom, in particular conically, and that the rod-shaped plug element (32) tapers towards its end face, in particular conically. On-board power supply connector according to one of the preceding claims, characterized in that, in the connected state, an inner lateral surface of the sleeve-shaped receptacle (28) and an outer lateral surface of the rod-shaped plug element (32) are in direct contact with each other. On-board power supply connector according to one of the preceding claims, characterized in that the spacer (18) extends in a rod-like manner inside the sleeve-shaped receptacle (28). On-board power supply connector according to one of the preceding claims, characterized in that, in the connected state, the spacer (18) is inserted up to a stop in the recess (46). On-board power supply connector according to one of the preceding claims, characterized in that the first connection part (12) is connected to a flexible cable (8), wherein the flexible cable (8) is inserted into the interior of the first housing part (2) through a feedthrough (22) and is movably mounted in the feedthrough (22) along the longitudinal axis (4) or the first connection part (12) is led out of the interior of the first housing part (2) through a feedthrough and is movably mounted in the feedthrough along the longitudinal axis (4). On-board power connector according to one of the preceding claims, characterized in that the first connecting part (12) is mounted on a radially inwardly pointing collar (16) at the end face opening (14) of the first housing part (2), in particular that the inwardly pointing collar (16) is arranged in an annular space between the outer lateral surface of the first connecting part (12) and the inner lateral surface of the first housing part (2) and is in particular fixed to the first housing part (2) relative to the longitudinal axis (4). On-board power supply connector according to one of the preceding claims, characterized in that the spring element (26) is mounted between a base (2c) of the first housing part (2) and an at least partially circumferential, radially outwardly pointing shoulder (12a) of the first connection part (12) and is compressed towards the base (2c) of the first housing part (2) in the connected state and thus exerts a spring force parallel to the longitudinal axis (4) in the direction of the shoulder (12a) on the first connection part (12). On-board power supply connector according to one of the preceding claims, characterized in that a circumferential seal (10) is arranged on an outer cladding surface (2a) of one of the housing parts (2, 40), which in the connected state is in contact with an inner cladding surface of the other housing part (2, 40). On-board power connector according to one of the preceding claims, characterized in that the second connecting part is materially bonded to an electrical conductor (34b), in particular to a solid material conductor. On-board power supply connector according to one of the preceding claims, characterized in that the second housing part (40) has a conductor receptacle for receiving the conductor (34b), in particular that the conductor receptacle is continuous and receives the conductor (34b) along its direction of propagation. On-board power supply connector according to one of the preceding claims, characterized in that the conductor receptacle runs perpendicular to the longitudinal axis (36) of the second housing part (40). On-board power supply connector according to one of the preceding claims, characterized in that an insulator (38) is arranged on the end face of the second connection part and covers the end face. On-board power connector according to claim 14, characterized in that the insulator (38) has an opening formed for receiving the spacer (18), in particular that the opening is coaxial to the return (46) of the rod-shaped plug element (32). On-board power supply connector according to one of the preceding claims, characterized in that a fastening lever (42) which can be pivoted about an axis perpendicular to the longitudinal axis (4, 36) is arranged on one of the housing parts (2, 40) and which, in the connected state, engages with a fastening means on the other housing part (2, 40).

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