On-board electrical system plug connector with external suspension

Abstract

An on-board electrical system plug connector is proposed which has a first housing part in which a first connection part is arranged, and a second housing part in which a second connection part is arranged. In a connected state of the on-board electrical system plug connector, the first connection part is in mechanical contact with the second connection part. A spring element engages the two housing parts of the on-board electrical system plug connector and indirectly causes a contact pressure between the two connection parts via the housing parts.

Description

[0001] On-board power connector with external spring

[0002] The subject matter relates to an on-board power supply connector, in particular for a motor vehicle's on-board power supply, particularly in a car, truck, or other motorized vehicle. The on-board power supply connector is particularly suitable for high-voltage on-board power supplies.

[0003] There are various types of high-voltage electrical systems in automotive applications. On the one hand, these can be electrical systems with voltages above 12V, for example 24V or 48V. Due to the increasing number of comfort consumers in motor vehicles, the realization is gaining ground that 48V electrical systems are advantageous. However, these require different connectors than those required for conventional 12V electrical systems. On the other hand, a high-voltage electrical system can also be understood as an electrical system for the drive train, particularly in electric motor-powered vehicles. The drive train is often operated with voltages of several hundredV, for example around 400V. In these electrical systems, not only high voltages but also high currents are to be expected, since driving the vehicle requires considerably more power than operating the comfort consumers. In such electrical systems, too, particularly stringent requirements are placed on connectors.

[0004] Particularly in highly dynamic automotive applications, high demands are placed on the mechanical stability of on-board power connectors. On-board power connectors must ensure a permanently stable and electrically sound connection. Due to the sometimes high current intensities, high demands are also placed on the contact resistance of such connectors to minimize heat loss at the transition. This requires large contact surfaces between the connecting partners. To ensure a permanently stable, electrically sound connection with low contact resistance and high resistance to dynamic loads, an on-board power connector according to claim 1 is proposed.

[0005] This vehicle electrical system connector has a first housing part.

[0006] The first housing part can, in particular, be formed from side walls and a base. Whenever "side walls" are mentioned here and below, this always refers to the singular. The housing part can also have an end face. The first housing part can comprise at least one opening.

[0007] A first connection part is arranged in the first housing part.

[0008] In addition to the first housing part, the vehicle electrical system connector also has a second housing part. The second housing part comprises, in particular, side walls and a base. The second housing part can further have an end face. The second housing part can include at least one opening.

[0009] A second connection part is arranged in the second housing part.

[0010] The two housing parts can in particular be separate from one another. The housing parts can be connectable and / or separable. For example, one housing part can be brought closer to the other housing part from an arrangement separate from the other housing part, in particular can be brought at least partially into the other housing part. For example, one housing part can be arranged stationary in an environment. The second housing part can in this case, for example, be arranged movable in the environment. Both housing parts can also be arranged movable in an environment. At least one of the two housing parts or both housing parts can be formed at least partially and / or substantially completely from an electrically insulating material. For example, a housing part can be formed from a plastic, in particular a high-temperature plastic, a ceramic, glass and / or combinations thereof.

[0011] At least one of the two and / or both housing parts can be formed as a single piece, for example. For example, at least one of the housing parts can be injection-molded and / or cast.

[0012] At least one of the two and / or both housing parts can be constructed in multiple parts. For example, several individual parts of a housing part can be connected to one another, in particular by force-locking and / or form-locking. For example, at least one individual part of a housing part can be locked to another individual part of the housing part. For this purpose, elastic barbs can be provided, for example, which bend when two individual parts approach each other and then lock into place with designated locking lugs.

[0013] If a connecting part is arranged in a respective housing part, the connecting part can be completely enclosed by the housing part. The connecting part can also be arranged only partially within the housing part, i.e. only partially enclosed by it. In particular, the connecting part can penetrate the envelope of the housing part. The envelope can here be understood in particular as the convex envelope. The envelope is of course only to be understood as a theoretical enveloping shell of the housing part, which separates the interior of the housing from the exterior of the housing. If the connecting part is completely enclosed by the housing, the connecting part can in particular be completely enclosed by the envelope, in particular the convex envelope, of the housing. At least one of the connecting parts can be connected to the respective housing part in a force-fitting and / or form-fitting manner.For example, several individual parts of the housing part can be arranged around the connecting part. For example, the individual parts can be connected to one another and enclose the connecting part, so that the housing part is in direct contact with the connecting part and, in particular, fixes it positively to the housing part. The connecting part can also be inserted into the housing, screwed, and / or overmolded and / or cast with at least one individual part of the housing part.

[0014] The second connection part is in particular formed congruently to the first connection part. If a connection part is formed congruently to another connection part, they can be brought into mechanical contact with one another via at least one contact surface. In particular, the two connection parts touch each other not only at individual contact points or at spatially very limited individual surfaces, but rather at at least one spatially extended contact surface. For example, the area enclosed by the contact points between the two connection parts on the outer surface of one or both of the two connection parts can be in direct mechanical contact with the other connection part to the extent of at least 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, or 99%. In all of these cases, contact can be referred to as full-surface contact.

[0015] For example, one of the two connecting parts can be shaped as a truncated cone and the other as a conical recess. In this case, the congruence of the two connecting parts can be ensured in particular by their taper angles being substantially identical. Along the longitudinal extent of the truncated cone, and equally along the longitudinal extent of the conical recess, the diameter of both parts can decrease by the same amount over a given length, for example, by the same width or the same diameter. This makes it possible for the outer surface of the truncated cone to bear against the inner surface of the conical recess, in particular essentially over its entire surface.

[0016] Other shapes of the first and second connection parts are possible. In particular, one of the two connection parts can be frustoconical, as a rod, as a plug face, as a surface, in particular as a substantially smooth, flat, profiled, curved and / or mechanically coded surface and / or shaped in some other way. A smooth surface can be polished, for example. A flat surface can be substantially planar, so that in particular it is not curved and / or has substantially no elevations and / or depressions. A profiled surface can, for example, be wave-shaped, have grooves, serrations or other surface shapes, in particular regularly shaped surface shapes. The respective other connection part, which is shaped congruently to the one connection part, forms the mechanical counterpart of the one connection part.The respective other connecting part can have recesses, in particular where the other connecting part has elevations. The recesses can, in particular, have a shape adapted to the elevations. The congruent connecting parts can thus engage with each other and / or form a large contact surface. In particular, the two can lie against each other over their entire surface.

[0017] Congruent connectors have the advantage of a large contact area. Furthermore, congruent connectors can ensure relative alignment of the connectors. In particular, the congruence allows the connectors to be held in a constant position relative to one another when in contact with one another. For example, if a first connector in the form of a cone or truncated cone is inserted into a conical recess of a second connector along the longitudinal direction of the truncated cone until the two connectors touch, they can no longer be moved relative to one another perpendicular to the longitudinal direction of the truncated cone. As a further advantage, congruent connectors can enable automatic alignment relative to one another upon contact. Connectors that are congruent to one another can also achieve mechanical coding (poka-yoke).For example, it can be specified that the two connecting parts can only be joined together in a predefined orientation. This way, contact errors can be prevented.

[0018] The vehicle electrical system connector in question can comprise multiple connection parts per housing part. When reference is made below to a connection part on one of the two housing parts, this also includes multiple connection parts on the housing part.

[0019] The vehicle electrical system connector in question further comprises a spring element. A spring element is characterized by the fact that, when deformed, it exerts an elastic restoring force that counteracts the deformation. Deformation can, for example, be compression, expansion, twisting, bending, or other changes in the shape of the spring element.

[0020] For example, a spring element can be a spring, in particular a spiral spring, parabolic spring, wave spring, torsion spring, disc spring, and / or evolute spring. A spring can be designed, for example, as a compression spring. In this case, the spring can be compressed. The spring's restoring force counteracts the compression. The spring can also be a tension spring, for example. In this case, the spring can be extended and counteracts the extension with its restoring force. A spring can, for example, be made of a metal material, in particular a spring steel such as C60S (1.1211), C67S (1.1231), and C75S (1.1248), or 51CrV4 (1.8159), or X10CrNil8-8, X7CrNiA117-7, X5CrNiMol7-12-2, X5CrNil8-10, or X22CrMoV121, or X39CrMol7-1, or copper (CuSn8, CuBe2) or nickel alloys (Nimonic, Inconel, Duratherm). Springs can also be made of plastics, for example, fiber-reinforced plastics.

[0021] The spring element can also be made at least partially of rubber, for example. For example, the spring element can comprise multiple rubber strands. The spring element can also be made at least partially of foam. The spring element can also be made at least partially of plastic, for example, in the form of an elastic clamp and / or spring.

[0022] A first and a second spring end can be defined for the spring element. The spring element exerts a force between the two spring ends.

[0023] The spring element can be mounted on one of the two housing parts. In particular, the spring element can be mounted captively on one of the two housing parts. For example, the spring element can be held on the housing part by an eyelet, a hook, a recess, a projection, a holding element provided for this purpose, and / or combinations thereof. It is also possible for the spring element to be formed as a part of the housing part on which the spring element is mounted. The spring element can, for example, be formed essentially in one piece with the housing part. For example, at least one individual part of the housing part and the spring element can be injection-molded together, in particular from a plastic, in particular an elastic plastic.

[0024] The spring element can in particular be mounted with a spring end on one of the two housing parts.

[0025] For example, the spring element can also be separable from at least one and / or both housing parts. The spring element can also be captively mounted on at least one of the housing parts. If here and in the following one element is mounted on another, this comprises a force-fitting, form-fitting and / or material-fitting fastening. Mounted can also mean that one element is movably mounted on the other element, for example rotatably, displaceably, pivotably and / or otherwise movably mounted. Mounted can also refer to a permanent connection and / or a detachable one. Elements mounted on one another can also be formed integrally as essentially one element.

[0026] For example, several spring elements can be provided.

[0027] The connecting parts are made of and / or coated with an electrically conductive material. In particular, the connecting parts can be made of a copper material or alloys thereof, or an aluminum material or alloys thereof. Coating of the connecting parts, particularly on surfaces that come into contact with the other connecting part, is also conceivable. A metallic coating, in particular tinning, silvering, gold plating, nickel plating, and / or combinations thereof, is possible.

[0028] A connected state can be defined for the vehicle electrical system connector in question. In the connected state, the connecting parts come into electrical and / or mechanical contact with each other.

[0029] In the connected state, the second housing part can be fixed relative to the first housing part. In the connected state, in particular, one of the housing parts can be inserted into the other housing part. For this purpose, at least one housing part can have an opening into which the other housing part can be at least partially inserted.

[0030] When connected, the second connector is in mechanical contact with the first connector. The contact surfaces of the connectors are in contact with one another. Contact surfaces are, in particular, an outer surface of one connector that is in direct contact with an inner surface of another connector. For example, a first connector can be formed as a truncated cone, and the second connector as a conical recess. When connected, the outer surface of the truncated cone can be in contact with the inner surface of the conical recess.

[0031] To establish a good electrical connection, the contact surfaces of the connecting parts must be firmly connected to one another. In particular, a normal force should be present between the contact surfaces. Furthermore, for dynamic stability, the connection must be fixed in place even in dynamic environments. To this end, it is proposed that the two housing parts of the vehicle electrical system connector be fixed to one another in such a way that the spring element exerts a spring force from a first of the two housing parts onto the second of the two housing parts. In particular, the spring element exerts a spring force in one spring direction. The spring force on the housing parts causes, in particular, a contact pressure between the first housing part and the second housing part.

[0032] The first and / or second connecting part are, in particular, fixed relative to the housing part in which they are arranged. In particular, the respective connecting part can be fixed relative to the housing part in the spring direction and / or in all spatial directions. This makes it possible to transmit a spring force acting on the housing part to the connecting part.

[0033] The relative fixation of the housing part and the connection part to one another also ensures that elements which are connected to the connection part can also be fixed relative to the housing part. Because there is no relative movement between the connection part and / or elements connected to it and the housing part, transitions between the housing part and the connection part and / or elements connected to it can, for example, be permanently sealed. For example, an electrical conductor, for example a cable which is mechanically and / or electrically connected to the connection part, can be led out of the housing part in a sealed manner. Because the housing part and the electrical conductor are fixed to one another, the lead-out can be permanently sealed, in particular gas-tight and / or fluid-tight and / or liquid-tight.In particular, only reduced mechanical forces act between the housing part and the electrical conductor in the area of ​​the exit, especially in the area of ​​any insulation at the exit, since the two are already fixed to each other.

[0034] To establish the connected state of the vehicle electrical system connector in question, the two housing parts and / or the two connection parts can be brought closer together until the two connection parts touch each other. In particular, the two housing parts and / or connection parts can be brought closer together in a plugging direction.

[0035] The plug-in direction can be defined for each housing part. The plug-in direction is directed from the respective housing part to the other housing part. The two housing parts can be brought closer together in a straight line in the respective plug-in direction, thus reaching the final position in which the respective connection parts are mechanically and electrically connected.

[0036] The two housing parts can also be brought into contact with each other, at least partially. The two housing parts can, in particular, be designed such that they do not have a stop even in the plug-in direction.

[0037] In particular, the connecting parts can form the stop between the first housing part and the first connecting part on the one hand and the second housing part and the second connecting part on the other hand in the plug-in direction. Due to the relative fixation of the connecting part in its respective housing part, the abutment of the connecting parts also causes the two housing parts to be fixed relative to one another. The surfaces of one housing part which abut the other of the housing parts can, for example, be aligned substantially parallel to the plug-in direction. This can ensure that the two housing parts can be displaced along one another in the plug-in direction and / or can slide along one another. For example, a plurality of walls can be provided on at least one housing part which are arranged substantially parallel to the plug-in direction and parallel to one another.The walls can be arranged, in particular, near the opening, in particular around the opening, in particular circumferentially. A gap can be formed between the walls. The walls can be formed, for example, as a collar, in particular around the opening.

[0038] The two housing parts can be slid along an overlapping distance, particularly when establishing the connected state, while being in mechanical contact with each other at least partially, in particular circumferentially, in particular circumferentially around the connecting part. The mechanical contact can be direct and / or indirect, for example, via at least one seal, in particular via a sealing ring with, in particular, at least one sealing lip.

[0039] When reference is made here and below to "essentially perpendicular," this means an angular range of 90° + / - 25°, in particular 90° + / - 15°, in particular 90° + / - 5°. When reference is made here and below to "essentially parallel," this means an angular range of 0° + / - 25°, in particular 0° + / - 15°, in particular 0° + / - 5°.

[0040] In particular, the two housing parts can be guided along each other in the opposite plug-in direction, starting from the connected state with the connecting parts adjacent, in mechanical contact, particularly circumferential mechanical contact. The connecting parts are separated while the two housing parts are still in mechanical contact.

[0041] The housing parts can therefore overlap one another in the connected state; in particular, one of the housing parts can be pushed into another of the housing parts. The overlap of the two housing parts can, in particular, be arranged circumferentially around at least one opening of at least one of the housing parts. The overlap can, in particular, measure an overlap distance, in particular in the plug-in direction. In the region of the overlap, in particular at least one seal, in particular a circumferential seal, can be arranged between the two housing parts. In particular, at least two or more seals can be provided, which are spaced apart from one another, in particular along the plug-in direction.

[0042] The seal, in particular the distance between the sealing lips furthest apart in the plug-in direction, or in the case of several seals the greatest distance between the seals in the plug-in direction, can measure, for example, at least 20%, 30%, 40%, 50%, 60%, 70%, 80% or in particular 90% of the overlap distance.

[0043] When connected, the connecting parts are pressed together by the spring element. The spring element thus creates a contact pressure between the connecting parts. As described above, the spring element acts indirectly on the connecting parts via the housing parts. The spring element is in mechanical contact with both connecting parts.

[0044] In the connected state, the spring element is particularly compressed. The spring element's restoring force, which acts in the direction of expansion, presses the two connecting parts against each other, creating a contact pressure between them. In the connected state, the spring element can also be expanded, for example. In this case, the spring element's restoring force acts to shorten the spring element, starting from the expanded state. In this case, too, the spring's restoring force causes the connecting parts to press against each other.

[0045] When we talk about “the spring element”, this includes both a single spring element and several spring elements.

[0046] The spring element can, for example, be arranged at least partially within one of the two housing parts, in particular the housing part on which the spring element is mounted. The spring element can also be arranged at least partially and / or completely outside at least one and / or both housing parts. Arranging the spring element at least partially outside at least one of the housing parts has the advantage that the connecting parts can first be placed against one another to establish the connected state, wherein in particular the interior space enclosed by the two housing parts is closed. The spring element can then be deformed, in particular compressed or expanded, to achieve the contact pressure between the two connecting parts.

[0047] Because the spring element engages the outside of the housing parts, especially after contact between the connecting parts and / or the housing parts, no moving element needs to engage the interior space defined by the housing parts from the outside. This ensures that the interior of the housing parts is permanently sealed from the environment.

[0048] For mechanical connections between the spring element and the first and / or second housing part, a fixing element can be provided, for example. When the vehicle electrical system connector is connected, the fixing element can mechanically connect the spring element to the first and / or second housing part.

[0049] The fixing element can, in particular, be made up of several parts. It is also possible for the fixing element to be constructed in one piece.

[0050] The fixing element can be arranged captively on one of the two housing parts. In particular, the fixing element can be movably mounted on one of the two housing parts. For example, the fixing element can be mounted on one of the housing parts so that it can rotate about an axis. The fixing element can, for example, be a part of one of the two housing parts, in particular, be molded integrally with one of the two housing parts, for example, by injection molding.

[0051] When the vehicle electrical system connector is connected, the two housing parts are in indirect mechanical contact with each other, particularly via the two connection parts. Furthermore, the two housing parts can be in indirect mechanical contact, particularly via the spring element or the spring element and the fixing element. The spring element or the combination of fixing element and spring element can exert a spring force in the spring direction on the two housing parts and thus on the two connection parts, resulting in contact pressure between the connection parts.

[0052] For example, the many direction is essentially parallel to the plugging direction of the vehicle electrical system connector in question.

[0053] The fixing element is configured, for example, to bring one of the two spring ends of the spring element into contact with one of the two housing parts. For example, the fixing element can be configured to press a compressible spring element, in particular a compression spring, with one spring end onto one of the housing parts, in particular while the other spring end is connected to the fixing element. The fixing element can also fasten an expandable spring element, in particular a tension spring, with one spring end to one of the housing parts.

[0054] The fixing element has, for example, at least one holding element. The holding element can in particular be designed to be connected to one of the two housing parts. For example, a fastening means can be provided on one of the housing parts for this purpose. A fastening means can, for example, be a hook, a barb, a clip, a latch, a lever, a slack element, a screw element, a nail, a Velcro element, a strap, a chain and / or a combination thereof. For example, the fixing element can be mounted on one of the two housing parts, in particular mounted captively and / or movably, while the holding element serves to connect the fixing element to the other of the two housing parts.

[0055] A fastening element can be fixedly mounted on the housing part. The fastening element can also be mounted on the housing part, for example, with springs.

[0056] In one embodiment, the fixing element, in particular as a holding element, comprises a fastening lever pivotably mounted on one of the two housing parts about an axis. The axis is in particular aligned substantially perpendicular to the spring direction. The fastening lever can engage with a fastening means on the other of the housing parts, in particular when the vehicle electrical system connector is connected. The fastening lever can be locked, in particular when connected. A lever holder can be provided for this purpose, for example, on the housing part on which the fastening lever is mounted.

[0057] In a further embodiment, the fixing element comprises one or more clamps that can engage one of the housing parts and / or both housing parts. For example, the clamp can be mounted on one of the two housing parts; in particular, the clamp can be formed as part of one of the two housing parts. In the connected state, the clamp can engage with the other housing part. For this purpose, a locking lug, a recess, and / or a projection can be arranged on the other housing part, for example.

[0058] In one embodiment, a part of the fixing element, in particular a clamp, can be designed to be elastic. In particular, the clamp can be deformed as the two housing parts approach each other and can lock into one of the two housing parts when the vehicle electrical system connector is connected.

[0059] In one embodiment, the spring element is part of the fixing element. The fixing element can be formed, for example, from an elastic material. In particular, the fixing element can be formed such that the fixing element can elastically absorb deformations, in particular compression and / or expansion, particularly in the insertion direction, and thus acts as a spring element.

[0060] The fixing element can take on the function of tensioning the spring element, in particular compressing or expanding it. A tensioning lever can be provided for this purpose. The tensioning of the spring element can also be achieved by deformation triggered by other means, such as manual deformation of the spring element. Only in this case can the fixing element serve to maintain the spring element's deformation.

[0061] In one embodiment, at least part of the fixing element is formed as a cover. The cover can, for example, provide at least partial enclosure for the spring element. The cover can, for example, be captively mounted on one of the housing parts. For example, the cover can have at least one positive fastening means for this purpose, in particular a clamp, a clip, a locking element and / or a combination thereof. The cover can, for example, ensure captively mounted support of the spring element on the housing part. The cover has, in particular, a base and a collar. The collar can, for example, be oriented substantially parallel to the spring direction of the spring element. The base can, for example, be oriented substantially perpendicular to the spring direction of the spring element. For example, the housing element on which the cover is arranged can also have a collar.This collar can, for example, also be aligned substantially parallel to the spring direction. The collar of the cover and the collar of the housing part can, for example, overlap each other in the spring direction. The cover, in particular its collar, and / or the collar of the housing part can define an at least partially enclosed space, which is arranged between the housing part and the cover. The spring element, for example, can be at least partially arranged in this space.

[0062] In one embodiment, the spring element is mounted on one of the housing parts at least partially between the housing part and a part of the fixing element, in particular the cover.

[0063] The fixing element can comprise a carriage. The carriage can, in particular, be movably mounted on the housing part. In particular, the carriage can be movably mounted on the housing part in the spring direction. For example, at least one guide can be provided for this purpose. For example, a channel can be provided in the housing part, which extends substantially parallel to the spring direction. The fixing element, in particular the carriage, can have a matching guided element, for example a rod, a rail, a roller, and / or an element to be guided that is otherwise adapted to the guide.

[0064] At least part of the spring element, in particular the slide, can have a stop on the housing part on which it is mounted. The stop can, in particular, keep the spring element preloaded. This means that the spring element is already preloaded before the vehicle electrical system connector is connected. The stop can prevent the spring element from transitioning into a completely relaxed, forceless configuration.

[0065] When the vehicle electrical system connector is not connected, the spring can thus hold the carriage against the stop with a residual tension. The stop is in particular formed at least partially as a part of the housing part on which the spring element is mounted. The stop of the housing part is in particular formed integrally with at least part of the housing part. The carriage also has a stop which can bear against the stop of the housing part. For example, the carriage can have one or more projections and / or recesses, in particular one or more hooks, in particular elastic hooks, which bear against a stop, in particular a projection and / or recess, of the housing.

[0066] Due to the preload of the spring element, it is always in a well-defined position and orientation. In particular, it no longer needs to be repositioned to establish the connected state of the vehicle electrical system connector.

[0067] The use of a slide on the housing part on which the spring element is mounted has the advantage of being able to preload the spring element. Another advantage of using a slide is that the spring element is guided. The spring element can also be at least partially enclosed between the slide and the housing part. This protects the spring element. This has advantages for the longevity of the vehicle electrical system connector and also for its handling. For example, spring elements are often made of electrically conductive metal materials, the open accessibility of which poses risks in the vicinity of a high-voltage vehicle network. The slide can be identical to the cover. The features of the slide described above, including the guide, stop, and all other features, can also be present on the cover, as can the corresponding counterparts on the respective housing part.

[0068] In this way, the cover, which in particular partially houses the spring element, can also guide the spring preload and the spring.

[0069] In one embodiment, the fixing element comprises a holding element mounted on the slide and / or the cover. The holding element can in particular engage with a fastening means on the other of the housing parts. For example, the holding element can be formed as a hook, for example a flexible hook, as a clip, or as a snap element. The holding element can also be formed, for example, as a band, or as a rod, a sheet metal, a stick, in particular with a hole or another holding element. The holding element can, for example, bridge the distance between the fixing element, in particular the slide and / or the cover, which are arranged in particular on one of the two housing parts, up to the second housing part, in particular up to the fastening means of the second housing part.The holding element can thus adjust a predetermined distance between the fixing element, in particular the slide and / or the cover, and the second housing part. As long as the holding element is engaged with the fastening means of the second housing part, a distance is adjusted between this second housing part and at least part of the fixing element.

[0070] In one embodiment, the holding element can be formed integrally with a part of the fixing element, in particular the cover and / or the slide.

[0071] The fastening means can be, for example, a recess, a protrusion, a hole, in particular a blind hole and / or a through hole, a barb, a snap element, a thread, a magnetic closure, and / or a combination thereof. In particular, the fastening means can be formed integrally with the second housing part. It is also possible to provide the fastening means as a separate element from other individual parts of the second housing part.

[0072] In one embodiment, the retaining element comprises a fastening lever pivotably mounted about an axis. The axis is oriented substantially perpendicular to the spring direction. The fastening lever can engage with a fastening means on the other of the housing parts, particularly when the vehicle electrical system connector is connected. The fastening lever can be locked, particularly when connected. A lever holder can be provided for this purpose, for example, on the housing part on which the fastening lever is mounted.

[0073] As already explained above, the two connecting parts can be shaped congruently to one another. In one exemplary embodiment, one of the connecting parts has a sleeve-shaped receptacle, and one of the connecting parts has a rod-shaped plug-in element that is congruent with the receptacle. The sleeve-shaped receptacle can, for example, have a conical recess. The rod-shaped plug-in element can, for example, also be frustoconical in shape.

[0074] In particular, when the vehicle electrical system connector is connected, the plug element can be inserted into the receptacle. The receptacle can taper, in particular conically, from a front opening toward a base of the receptacle. The plug element can taper, in particular conically, toward its front surface.

[0075] When connected, an inner circumferential surface of the receptacle and an outer circumferential surface of the plug-in element can be in direct contact with one another. In particular, a gap can be arranged between the front end of the plug-in element and the base of the receptacle when connected. The gap can ensure that the contact pressure between the connecting parts is absorbed by the circumferential surfaces. In one exemplary embodiment, an end piece, in particular made of an insulating material, can be arranged on the plug-in element. The end piece is arranged in particular in the area of ​​the plug-in element which is closest to the other connecting element when it is brought together. For example, a front-end receptacle for an end piece can then be provided on the connecting part, in particular the plug-in element. The piece can, for example, be plugged onto the connecting part, in particular onto its front-end receptacle.

[0076] In one embodiment, an insulator is arranged on the end face of one of the connecting parts and at least partially covers the end face. For example, an insulator can be arranged at the end face of the receptacle, in particular circumferentially around the receptacle. For example, in the case of a substantially round receptacle, an insulator ring can circumferentially surround the receptacle.

[0077] The connecting part, which is formed as a receptacle, can be enclosed by an insulating sleeve on its outer surface. For example, at least one recess and / or projection can be provided on this connecting part, to which an insulating sleeve can be latched. The insulating sleeve can, for example, also have at least one projection and / or recess that can engage with the recess and / or projection of the connecting part.

[0078] An insulator on a connector, for example, serves as contact protection and increases safety when handling the vehicle electrical system connector in question.

[0079] In one embodiment, the first housing part and / or the second housing part can have an opening. In the connected state, in particular, one of the two housing parts can be at least partially inserted into the opening of the other housing part. In this case, the two housing parts overlap. In particular, in the connected state, the first housing part can be inserted into an opening in the second housing part. Alternatively or additionally, the second housing part can be inserted into an opening in the first housing part in the connected state.

[0080] A respective opening of a housing part can have an axial extension. In particular, the axial extension can be aligned substantially parallel to the insertion direction. For example, the opening can be delimited by a lateral inner surface that runs at least partially substantially parallel to the insertion direction.

[0081] A housing part can have an outer surface. In particular, an outer surface can be provided in the form of a collar around an opening. For example, the outer surface can be aligned at least partially substantially parallel to the plug-in direction. In one exemplary embodiment, the collar of a first housing part, which is arranged in particular around an opening in the first housing part, in particular circumferentially around an opening, can be cross-sectionally adapted to the inner surface of an opening in the second housing part. The collar of the first housing part can thus be guided into the opening and along the inner surface of the second housing part. In particular, the collar of the first housing part and the inner surface of the first housing part can overlap one another in the axial extension direction of the opening when connected.In particular, the collar and the inner lateral surface can overlap along the insertion direction. Both housing parts can also each have a collar that surrounds the respective opening, in particular circumferentially.

[0082] The axial extent of the opening of one of the housing parts and / or both housing parts can, in particular, be aligned substantially parallel to the insertion direction and / or spring direction. For example, at least one of the housing parts can have a plurality of collars, which, in particular, enclose the opening, particularly circumferentially.

[0083] For example, two collars can be arranged on one of the housing parts, which are aligned substantially parallel to the plug-in direction and parallel to one another, such that a gap, in particular substantially perpendicular to the plug-in direction, is formed between the collars. A collar of the other housing part can be inserted into the gap. A seal, for example, can be arranged in the gap between the collars of the first connection part, in particular on an inner and / or outer surface of one of the collars. The width of the gap can correspond to the material thickness of the collar of the other housing part plus the thickness of the seal. In particular, the gap can be narrower than the sum of the material thickness of the collar of the other housing part and the thickness of the seal. As a result, increased contact pressure between the collar and the seal can be achieved when the collar of the other housing part is inserted into the gap.The collar of the other housing part, which is guided between the two collars of one housing part, can thus be firmly held between the seal and a collar of one housing part. At least one of the described collars can also be an inner circumferential surface of an opening of a housing part.

[0084] In one exemplary embodiment, at least one seal can be arranged on an outer circumferential surface of at least one of the housing parts. In particular, a seal can be arranged in the region of an opening in the housing part. In particular, the seal can be arranged circumferentially, in particular circumferentially around the opening. In particular, a seal can be arranged on an outer circumferential surface of one of the housing parts, which seal is in contact with an inner circumferential surface of the other housing part when the vehicle electrical system plug connector is connected. At least one seal, in particular a circumferential seal, can also be arranged on the inner circumferential surface of one of the housing parts, which seal is in contact with an outer circumferential surface of the other housing part when the connected state. The seal can in particular have a plurality of sealing lips. The sealing lips can each circumferentially follow the course of the seal.The sealing lips may be spaced apart from each other along the axial extent of the opening.

[0085] In particular, at least two or more seals may be provided.

[0086] In one embodiment, at least one of the connecting parts is mechanically and / or electrically connected to an electrical conductor. The connection can be frictionally, positively, and / or materially connected. For example, a conductor can be screwed, clamped, riveted, soldered, and / or welded to one of the connecting parts.

[0087] In one embodiment, the connecting part is indirectly connected to an electrical conductor. For example, a connecting element, in particular made of a metal material, can be connected to the electrical conductor and also to the connecting part. For example, the connecting element can be integrally connected to the conductor, in particular soldered and / or welded. The connecting element can be attached to the connecting part, for example, in a force-fitting and / or form-fitting manner, in particular screwed.

[0088] The electrical conductor may be made of a metal material, in particular aluminum and / or alloys thereof or aluminum and / or alloys thereof.

[0089] The electrical conductor can, for example, be a stranded conductor. It is also possible for the electrical conductor to be formed from a solid material. For example, the electrical conductor can be a busbar. The busbar can, for example, have a substantially rectangular cross-section with two wide sides and two narrow sides. The electrical conductor can, in particular, be formed as a cable. The electrical conductor can thus comprise an insulating layer which surrounds the electrical conductor. Shielding can also be provided. In particular, the electrical conductor can be surrounded by a first insulating layer, which is surrounded by a shield, which in turn is surrounded by an outer insulating layer. The shielding can, for example, be in the form of a metal wire braid and / or in the form of a foil, in particular a metal foil.

[0090] In one exemplary embodiment, at least one of the two housing parts has a conductor receptacle. The conductor receptacle can serve to receive the conductor. In particular, the conductor receptacle can be formed as a feedthrough of the electrical conductor from the surroundings of the housing part into the housing part. The conductor receptacle can be shaped, for example, as an opening in the housing part. The conductor receptacle has an axial extent which extends, for example, along the longitudinal direction of the electrical conductor. The axial extent of the conductor receptacle can, in particular, run at an angle, in particular substantially perpendicular to the spring direction and / or plug-in direction.

[0091] The conductor receptacle can, for example, have at least one seal. The seal can, in particular, circumferentially enclose the electrical conductor which is guided into the conductor receptacle. In particular, the electrical conductor including the insulation layer can be enclosed by the seal. The seal can therefore bear circumferentially against the conductor. In this way, a tight transition between the conductor and the interior of the housing part can be ensured. In particular, the transition can be gas-tight and / or fluid-tight. The seal of the conductor receptacle can have a plurality of sealing lips which are spaced from one another in particular along the axial extent of the conductor receptacle. A plurality of seals, in particular seals of this type, can also be provided. The conductor receptacle can have a cross-section adapted to the electrical conductor. This can mean, in particular, that the conductor can be inserted into the conductor receptacle.In particular, the conductor can be positioned centrally within the conductor receptacle so that it has a substantially equal distance from the conductor receptacle along its cross-sectional circumference on all sides perpendicular to the axial extent of the conductor receptacle.

[0092] In one embodiment, the electrical conductor has a shield. The shield can in particular be electrically connected to at least one sleeve. The sleeve can be arranged in a housing part, in particular the housing part into which the electrical conductor is inserted. The sleeve surrounds at least one connection part, in particular in the connected state. This can ensure the function of the shielding even in the region of the transition between the two connection elements. For example, a first sleeve can be arranged around the first connection part in the first housing part. A second sleeve can be arranged around the second connection part in the second housing part. If the connection parts rest against one another in the connected state, the two sleeves can also rest against one another at least partially and thus establish electrical contact.In this way, both the two connectors and the shielding surrounding them are electrically connected. The current path, which is closed by the vehicle electrical system connector, is thus continuously shielded.

[0093] When we talk about an electrical conductor, we are referring to a cable.

[0094] In one exemplary embodiment, one of the two housing parts can be embedded in an electrically conductive housing. In particular, the conductive housing can be connected to the shielding of the conductor when the vehicle electrical system plug connector is connected. In one exemplary embodiment, at least two first connection parts are arranged in the first of the two housing parts. Two second connection parts can also be arranged in the second of the two housing parts. In particular, pairs of first and second connection parts can thus be defined. In an exemplary embodiment with two first connection parts and two second connection parts, a first of the two first connection parts can be connected to a first of the two second connection parts. A second of the two first connection parts can also be connected to a second of the two second connection parts.The respectively connected first and second terminal parts, one of which is arranged in the first housing part and one in the second housing part, can be defined as a pair of first and second terminal parts.

[0095] In one embodiment, the spring element can exert a contact pressure on all pairs of first and second connection parts of the vehicle electrical system connector. In particular, the first connection parts can be fixed relative to the first housing part. When the spring element exerts a force on the first housing part, it exerts a force on the first connection parts. The second connection parts can also be fixed relative to the second housing part. A force on the second housing part therefore affects the second connection parts. The spring element thus acts on all pairs of first and second connection parts of the vehicle electrical system connector.

[0096] In one exemplary embodiment, a respective spring element is assigned to one of the connection parts. In particular, a spring element can be assigned to a pair of first and second connection parts. In particular, at least one of the many elements can be aligned with at least one pair of first and second connection parts, in particular in the plug-in direction. This results in uniform contact pressure for all pairs of respective first and respective second connection parts. In one exemplary embodiment, one, in particular the second, of the two housing parts has a securing element. A securing element can be operated in particular by mechanical contact. In particular, the securing element can be a switch which is closed or opened by mechanical contact with another element.

[0097] A fuse element can detect the presence of another element in a certain position, particularly in the vicinity of the fuse element. An evaluation device can be connected to the fuse element. This can, for example, be configured to de-energize a conductor if the fuse element does not detect the presence of another element.

[0098] In one embodiment, one of the two housing parts, in particular the first of the two housing parts, has a channel which extends in particular in the spring direction.

[0099] The channel can, in particular, serve to guide a portion of the fixing element. In particular, the channel can serve as a guide for the carriage, including the cover. The channel can also be provided independently of any guide for a portion of the fixing element.

[0100] In one embodiment, the channel serves, at least among other things, as a securing channel. A portion of the fixing element can be guided through the securing channel. For example, this can be a portion of the slide and / or the cover. Other parts of the fixing element can also be guided in the securing channel. In particular, a portion of the fixing element can extend into the second of the two housing parts.

[0101] For example, the fixing element can have at least one or more seals in the area that is inserted into the securing channel. A seal, in particular a circumferential seal, can be arranged on an outer surface of the fixing element. The seal can be in circumferential contact with the inner surface of the securing channel. At least one circumferential seal can also be arranged on the inner surface of the securing channel. In both arrangements, the seal can have circumferential mechanical contact with both the inner surface of the securing channel and the fixing element. This can seal the interior of the housing from the environment of the vehicle electrical system connector, in particular a gas-tight and / or fluid-tight seal. At the same time, the movement of the fixing element, in particular of the slide and / or the cover, can be detected within the housing.

[0102] A part of the fixing element can, for example, be arranged permanently in the securing channel, in particular both in the unconnected and in the connected state of the vehicle electrical system connector.

[0103] In particular, the mechanical connection between the fixing element and the inner circumferential surface of the securing channel can be established permanently, in particular both in the unconnected and in the connected state of the vehicle electrical system connector, in particular indirectly via at least one seal.

[0104] The opening of the securing channel in the first housing part can in particular be arranged in a region of the first housing part which is covered by the cover. In particular, a collar can cover the opening of the securing channel on the outer surface of the first housing part. The cover can be slipped over the collar. In particular, the cover can also have a collar which extends from a base of the cover towards the first housing part. In particular, the collar can be aligned at least substantially parallel to the plug-in direction. The two collars, of the cover and the first housing part, can overlap one another in the plug-in direction. This provides further protection for the securing channel. The spring element which, in some embodiments, is arranged between the cover and the first housing part is also protected in this way.

[0105] In one embodiment, the fixing element actuates the safety element, particularly when the vehicle electrical system connector is connected. For example, the safety element can be designed as a safety switch. The fixing element, particularly the part of the safety element inserted into the safety channel, can close a safety switch, particularly when the vehicle electrical system connector is connected. The safety element can be arranged, in particular, in the second of the two housing parts. The safety channel can be arranged in the first of the two housing parts and, in particular, can be aligned with the safety element.

[0106] In a further embodiment, a temperature sensor can be provided. The temperature sensor can be arranged in one of the two housing parts. For example, the temperature sensor can be arranged in the second of the two housing parts, in particular in the housing part in which the fuse element is arranged.

[0107] The subject matter of the invention is explained in more detail below with reference to a drawing showing exemplary embodiments.

[0108] Fig. la-g schematic side views of the subject

[0109] On-board power supply connector according to an embodiment;

[0110] Fig. 2a is an isometric view of the subject vehicle electrical system connector in the unconnected state according to one embodiment; Fig. 2b is an isometric view of the subject vehicle electrical system connector in the connected state according to one embodiment;

[0111] Fig. 3 is an isometric view of the first housing part of the subject vehicle electrical system connector according to an embodiment;

[0112] Fig. 4 is an isometric view of the second housing part of the subject vehicle electrical system connector according to an embodiment;

[0113] Fig. 5a is a sectional view of the subject vehicle electrical system connector in the unconnected state according to an embodiment;

[0114] Fig. 5b is a sectional view of the subject vehicle electrical system connector in the connected state according to an embodiment;

[0115] Fig. 6 is a sectional view of the first housing part of the subject vehicle electrical system connector according to an embodiment;

[0116] Fig. 7 is a sectional view of the first housing part of the subject vehicle electrical system connector according to an embodiment;

[0117] Fig. 8a, b a sectional view of the stop of the fixing element on the first

[0118] Housing part of the subject vehicle electrical system connector according to an embodiment.

[0119] Figure 1 shows various schematic designs of the subject vehicle electrical system plug connector 1. In Figure 1a, the first housing part 100 with the first connection part 110 is arranged at the top. Below this, the second housing part 200 and the second connection part 210 can be seen. Furthermore, a spring element 400 is arranged on the second housing part 201. A fixing element 300 connects the first housing part 100 and the second housing part 200 indirectly via the fixing element 300 and the spring element 400. Due to the fixed arrangement of the connection parts 110 and 112 in the first housing part 100 and the second housing part 200, they are pressed onto one another by the spring element 400 in combination with the fixing element 300 with a contact pressure indirectly via the housing parts 100, 200.

[0120] In the embodiment in Figure 1b, the spring element 400 is arranged on the first housing part 100.

[0121] Figure 1c shows an embodiment with two spring elements 400.1 and 400.2, which are each arranged on the housing parts 100,200.

[0122] While the embodiments in Figures 1a-c show spring elements 400 which are compressed to generate the contact pressure between the connecting parts 110 and 210, in particular compression springs, Figures 1d and 1e relate to embodiments with spring elements which are expanded, in particular tension springs.

[0123] In Figure 1d, the spring element 400 is integrated into the fixing element 300. Thus, the spring element 400 is not arranged directly on one of the two housing parts 100, 200.

[0124] Figure 1e shows another embodiment in which no separate fixing element 300 is used, but only spring elements 400.1 and 400.2 are attached to the housing parts 100, 200. The fixing elements 300 can take various forms. In Figures 1a to d, they take the form of a bracket that encloses the two housing parts 100, 200. In Figure 1e, no fixing element 300 is provided at all, in addition to the spring elements 400.1, 400.2. Figures 1f and 1g show further alternative embodiments of the fixing element 300.

[0125] In Figure 1f, two brackets are provided as fixing elements 300. The brackets are rotatably mounted on the first housing part 100 and, when rotated, can engage under the second housing part 200. In this case, the fixing elements 300 can themselves be elastic and accordingly function as spring elements 400.

[0126] Figure 1g shows a further embodiment in which the upper housing part 100 has snap elements 300 that can engage under the second housing part 200. There, they come into contact with the spring elements 400.1, 400.2. These can exert the contact pressure between the connecting parts 110 and 210.

[0127] Figure 2a, b shows a more detailed embodiment of an on-board power supply connector 1.

[0128] Figure 2a shows the unconnected state of the vehicle electrical system connector 1. The first housing part 100 with a fixing element 300 is visible. Part of the fixing element 300 is a fastening lever 320. Below this, the second housing part 200 is shown. This has an opening 240. The two connection parts 210 and 212 are positioned in the opening 240. A securing element 230 is also located in the opening 240.

[0129] Figure 2b shows an actual vehicle electrical system connector 1 according to the exemplary embodiment of Figure 2a in the connected state. It can be seen that the fixing element 300 engages with its fastening lever 320 into a fastening means 220 provided for this purpose. The lever 320 is also locked in a lever holder 120. The fixing element 300 also comprises a slide 310, which in the embodiment shown can be referred to as a cover. The second housing part 200 is connected to a plate 230. The plate can, in particular, be electrically conductive. It can also be seen that at least one of the connecting parts 210, 212 has a thread for connection to an electrically conductive element.

[0130] Figure 3 shows an isometric view of the first housing part 100 of the subject vehicle electrical system connector 1. Two electrical conductors 130, 132 are guided into the first housing 100. An opening 140 of the first housing 100 can also be seen. Two connection parts 110, 112 are arranged in this opening. It can also be seen that the fastening lever 320 of the fixing element 300 is rotatably mounted on the slide 310. In the illustrated form, the fixing element 300, and in particular the slide 310 and the fastening lever 320, are therefore displaceable relative to the first housing part 100, in particular parallel to the plug-in direction.

[0131] Figure 4 shows an isometric view of the second housing part 200. Two connection parts 210, 212 are arranged in an opening 240 of the second housing part 200. Caps 214 can be seen on these. The caps 214 can, in particular, be formed from a non-electrically conductive material. Additionally, a fuse element 230 and a temperature sensor 250 can be seen within the opening 240. In the embodiment shown, no seal is arranged on the collar 242.

[0132] Figure 5a shows a sectional view of the subject vehicle electrical system connector 1 along the section plane IVa / IVb. In addition to the components already explained above, the spring element 400 can be seen here in particular. In the illustrated embodiment, the spring element 400 is a spiral spring. This is arranged between the first housing part 100 and the slide 310. The slide 310 takes the form of a cover. It can be seen that the slide 310 and the first housing part 100 together completely enclose the spring, even in the unconnected state shown.

[0133] The collar 312 of the slide 310 is arranged inside the coil spring 400. On the side of the first housing part 100, a collar is provided outside the spring 400 and around it. The two collars enclose the spring on both sides and ensure that the spring 400 runs smoothly and without jamming.

[0134] Figure 5a also shows that the conductor 132 is guided into the first housing part 100 through a seal 138. A cap 137 is additionally placed around the conductor 132 and fastened to the first housing part 100 by snap elements.

[0135] The conductor 132 includes a shield 136. The shield is folded over within the first housing part 100 and guided via conducting elements to a sleeve 116, which surrounds the first connection element 112. The sleeve 116 has spring elements. A sleeve 216 can also be seen on the side of the second housing part 200.

[0136] In the present embodiment, at least one seal 142 is provided for the mechanically tight connection of the two housing parts 100, 200. As can be seen, the first housing part 100 has several collars surrounding the opening 140. The seal 142 is arranged on a lateral surface of one of the collars, in particular circumferentially around the opening 140. Another collar is located opposite the seal 142.

[0137] Figure 5b shows the sectional view according to Figure 5a in the connected state. The spring element 400 is compressed. A gap can be seen between the slide 310 and the first housing part 100 along the plug-in direction above the first housing part 100. The fixing element 300 thus exerts a spring force on the first housing part 100 indirectly via the slide 310 and the spring element 400. However, no direct mechanical force is transmitted through contact between the slide 310 and an outer surface of the housing part 100. The connection is spring-loaded. The enlarged part in the lower left area of ​​Figure 5b shows the transition between the sleeve 206 of the lower housing part 200 and the upper sleeve 116 of the upper housing part 100. Spring-loaded contact tabs in the form of inwardly bent partial surfaces of the sleeve 116 of the first housing part 100 come into contact with the sleeve 216 of the second housing part 200.

[0138] It can also be seen that the first connection part 112 is surrounded by an insulating sleeve 113. The sleeve 113 is attached to the first connection part 112 by a locking element 113.1, which can also be seen in the enlarged section.

[0139] Starting from the slide 310, which is part of the fixing element 300, the spring element 400 exerts a spring force in the spring direction 410 on the first housing part 100. The spring direction 410 essentially coincides with the plug-in direction.

[0140] Figure 6 shows a further section in a section plane V parallel to the section plane IVa / IVb. Section plane V runs between the two connection parts 110, 112. The securing element 230 and the temperature sensor 250, which are arranged in the second housing part 200, can be seen. Furthermore, Figure 5 shows that the slide 310, as part of the fixing element 300, projects with an extension 330 into a channel 150 of the first housing part 100. Two seals 332 are arranged on the extension 330. In the connected state shown, the extension 330 of the slide 310 engages the securing element 230. The securing element 230 detects the extension 330 of the slide 310 and thus recognizes that the vehicle electrical system connector 1 is in a connected state. For example, a control device can evaluate the safety devices 230 and, for example, connect at least one of the conductors 130,132 to a voltage.Figure 7 shows a section along section surface VI. This shows a first and second connecting element 110, 112 of the first housing part 100. These are in direct contact with a respective connecting element 210, 212 of the second housing part 200. Two spring elements 400 can be seen. One is assigned to each pair of connecting parts 110, 210 and 112, 212. The slide 310 of the fixing element 300 is limited in its upward movement by a stop 160 of the first housing part 100. For this purpose, the slide also has a projection 312. The overlap 100-200 between the first housing part 100 and the second housing part 200 can also be seen in the view.

[0141] Figure 8 schematically shows two designs of stops 160 of the housing part 100, 200, on which the spring element 400 and the slide 310 are mounted.

[0142] Figure 8a shows a spring element 400 comprising a tension spring 400. The restoring force of the spring 400 thus acts in the direction of compression of the spring 400. A movement of the fixing element 300 causes an extension of the spring 400. The stop 160 of the first housing part 100 is thus positioned between the slide 310 and the spring element 400.

[0143] In the embodiment of Figure 8b, the spring element 400 is realized by a compression spring 400. In this embodiment, the stop 160 of the first housing part 100 is arranged above the spring 400 and the slide 310.

[0144] List of reference symbols

[0145] 100 housings

[0146] 110 connecting part

[0147] 112 connecting element

[0148] 113 sleeve

[0149] 113.1 Locking element

[0150] 116 sleeve

[0151] 120 lever holder

[0152] 130 ladders

[0153] 132 conductors

[0154] 136 Shielding

[0155] 137 Cap

[0156] 138 Seal

[0157] 140 opening

[0158] 142 Seal

[0159] 150 channel

[0160] 160 stops

[0161] 200 housing part

[0162] 201 Housing part

[0163] 206 sleeve

[0164] 210 connecting part

[0165] 214 Cap

[0166] 216 sleeve

[0167] 220 fasteners

[0168] 230 securing element

[0169] 240 opening

[0170] 242 collars

[0171] 250 temperature sensor

[0172] 300 fixing element

[0173] 310 Slide 312 Projection, collar

[0174] 320 levers

[0175] 330 extension

[0176] 332 seals 400 spring

[0177] 410 Spring direction

Claims

Patent claims 1. On-board power connector, in particular for high-voltage on-board power supplies, comprising a first connection part arranged in a first housing part, a second connection part congruent to the first connection part and arranged in a second housing part, and a spring element mounted on one of the two housing parts, wherein in a connected state of the on-board connector the two housing parts are fixed to each other in such a way that the spring element exerts a spring force from one of the first of the two housing parts onto the second of the two housing parts in a spring direction, so that the spring force causes a contact pressure between the first connection part and the second connection part.

2. On-board power connector according to one of the preceding claims, further comprising a fixing element which, in the connected state of the on-board connector, mechanically connects the spring element to the first and / or the second housing part, wherein in particular the fixing element is arranged in a captive manner on a housing part and / or the spring element is arranged between a housing part and a part of the fixing element, in particular a cover, and in particular is enclosed in a captive manner.

3. On-board power supply connector according to one of the preceding claims, characterized in that the fixing element comprises a slide, in particular as the cover, which in particular is arranged in a loss-proof manner on one of the housing parts, in particular the first housing part, and / or is guided on one of the two housing parts, in particular the first housing part, and / or is slidably mounted, in particular is slidably mounted essentially parallel to the spring direction, and / or has a stop on one of the housing parts, in particular the first housing part.

4. On-board power supply connector according to one of the preceding claims, characterized in that the fixing element has a retaining element, wherein the retaining element is engaged, in particular in the connected state, with a fastening means on one of the housing parts, in particular the second housing part, and / or is mounted on one of the two housing parts, in particular the first housing part, and / or on the slide, and / or comprises a fastening lever pivotably mounted on one of the two housing parts, in particular the first housing part, and / or on the slide about an axis substantially perpendicular to the spring direction, wherein in particular a lever holder locks the fastening lever in the connected state.

5. On-board power supply connector according to one of the preceding claims, characterized in that the spring element is arranged in a loss-proof manner on one of the two housing parts, in particular the first housing part, and / or on the fixing element.

6. On-board power supply connector according to one of the preceding claims, characterized in that, that one of the connecting parts has a sleeve-shaped receptacle and one of the connecting parts has a rod-shaped plug-in element congruent with the receptacle, in particular that in the connected state the plug-in element is inserted into the receptacle and / or that the receptacle tapers from an end-face opening towards a base, in particular conically, and / or that the plug-in element tapers towards its end face, in particular conically, and / or 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, in particular that a gap is arranged between the end face of the plug-in element and the base of the receptacle and / or that an end piece, in particular made of an insulating material, is arranged on the plug-in element and / or that an end piece is arranged on one of the connecting parts,the front face is at least partially covered by an insulator.

7. On-board power supply connector according to one of the preceding claims, characterized in that the first housing part has an opening and / or the second housing part has an opening and / or that in the connected state at least one of the housing parts is at least partially inserted into the opening of the other of the housing parts, in particular that in the connected state the first housing part is inserted into the opening of the second housing part and / or that in the connected state the second housing part is inserted into the opening of the first housing part.

8. On-board power supply connector according to one of the preceding claims, characterized in that, that at least one circumferential seal is arranged on a lateral surface of one of the housing parts facing the other housing part, in particular on an outer and / or an inner lateral surface, especially in the area of ​​the opening of the housing part, which, in the connected state, is in contact with an inner lateral surface of the other housing part. On-board power supply connector according to one of the preceding claims, characterized in that one of the connection parts is bonded to an electrical conductor, in particular to a solid or stranded conductor, and / or that one of the housing parts has a conductor receptacle for receiving the conductor, in particular that the axial extent of the conductor receptacle is angular, in particular substantially perpendicular to the spring direction, and / or that the conductor receptacle has at least one seal circumferentially enclosing the electrical conductor.A vehicle electrical system connector according to one of the preceding claims, characterized in that the electrical conductor has a shield which is at least partially electrically connected to at least one sleeve surrounding at least one terminal part in the connected state, and / or that one of the housing parts is embedded in an electrically conductive housing which, in the connected state, is in particular connected to the shield of the conductor. A vehicle electrical system connector according to one of the preceding claims, characterized in that at least two first terminal parts are arranged in the first of the two housing parts and / or at least two second terminal parts are arranged in the second of the two housing parts, and / or. that each spring element is assigned to one of the connection parts. On-board power supply connector according to one of the preceding claims, characterized in that a first of the two housing parts has a locking channel through which, in particular, a part of the locking element is guided, in particular into the second of the two housing parts, in particular in the insertion direction, wherein, in particular, a seal is arranged circumferentially on an outer surface of the locking element, which is in circumferential contact with the inner surface of the locking channel, in particular in the connected state, and / or a seal is arranged circumferentially on an inner surface of the locking channel, which is in circumferential contact with the outer surface of the locking element, in particular in the connected state, and / or the locking element, in the connected state, actuates a locking element, in particular closes a fuse switch.wherein the locking element is arranged in particular in the second of the two housing parts and / or the locking element is aligned with the locking channel, particularly in the insertion direction. On-board power supply connector according to one of the preceding claims, characterized in that a temperature sensor is arranged in one of the housing parts, particularly in the second housing part, particularly between at least two connection parts, particularly the second connection parts.

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