Contact element, contact assembly having a contact element, and shielding component having a contact element
The contact element design with a deflecting additional lamella protects the contact lamella from wear, ensuring a high contact normal force with low insertion force and minimal wear, addressing the challenges of existing connectors.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-09-05
- Publication Date
- 2026-03-12
AI Technical Summary
Existing connectors face challenges in achieving a high defined contact normal force with low insertion force while minimizing wear on contact lamellae and the mating contact element, especially due to geometric overlap and repeated assembly/disassembly processes, leading to wear and potential corrosion issues.
A contact element design featuring a contact lamella and an additional lamella with a coupling section, where the additional lamella deflects to protect the contact lamella during insertion, ensuring a defined contact normal force is applied only at the final insertion state, reducing wear on both elements.
This design allows for multiple insertions without significant wear on the contact lamellae or mating contact element, maintaining low electrical resistance and reducing insertion forces, while being easy to manufacture and compact in size.
Smart Images

Figure EP2025075316_12032026_PF_FP_ABST
Abstract
Description
[0001] R. 414796
[0002] - 1 -
[0003] Description
[0004] title
[0005] Contact element, contact arrangement with a contact element and shielding component with a contact element
[0006] Field of invention
[0007] The invention relates to a contact element, a contact arrangement with a contact element, and a shielding component with a contact element.
[0008] State of the art
[0009] Connectors often have contact elements that engage with a mating contact element of a mating connector. The pair of connector and mating connector can be referred to as a connector assembly. Contact is ensured at least in one mating position or state, corresponding to a fully mated state of the connector and mating connector. Typically, a defined contact normal force is exerted from the contact element to the mating contact element (or vice versa) along a contact direction that is often perpendicular to the mating direction.
[0010] The contact element can be designed - for example only - as a socket contact element or generally as a "female" contact element, and the mating contact element can be designed as a contact blade or round contact or generally as a "male" contact element (or vice versa).
[0011] In other known embodiments, the connector can be a shielded connector (to prevent the entry or exit of electromagnetic radiation into or from the connector or the connector assembly). In such a case, the connector can, for example, be a R. 414796
[0012] - 2 - comprise a so-called shielding component, which is preferably contacted with and / or plugged together with a counter-shielding component of the mating connector. The shielding component and counter-shielding component form, for example, a shielding assembly. The shielding component may, for example, have a contact element or be designed at least partially as a contact element, which comes into electrical contact with a mating contact element of the counter-shielding component when the shielding assembly or connector arrangement is plugged together. The counter-shielding component may have the mating contact element or may be designed at least partially as a mating contact element.
[0013] Such contact elements typically feature flexible or elastically reversible contact lamellae for electrical contact (alternatively or additionally, the mating contact element may also have such contact lamellae). These contact lamellae exhibit a material overlap with the contact partner (at least in the final insertion position or state). For example, the contact lamellae of the contact element have a material overlap with the mating contact element, which results in them being deflected in the inserted state, at least in the final insertion state, and generating the defined contact normal force required for the transmission of electrical currents with low ohmic resistance.
[0014] From DE 10 2023 202 154 A1, a shielded connector arrangement with such a contact arrangement comprising a contact element and a mating contact element is known. The contact element has a plurality of contact lamellae, each of which has a contact section for contacting a contact surface of the mating contact element. The mating contact element is formed as the (inner) wall of a first shielding component. The contact element is formed from a wall of a second shielding component, wherein the contact lamellae are cut out from the wall of the second shielding component. The first and second shielding components form a shield assembly.
[0015] Disclosure of the invention
[0016] The invention is based on the understanding that, in order to generate a sufficiently high defined contact normal force, the flexible contact lamellae should be sufficiently stiff, e.g., by being short and wide (at least up to the contacting section of the contact lamella). However, the higher the defined contact normal force, the higher R. 414796
[0017] - 3 - also the insertion force when connecting, which should be kept as low as possible.
[0018] Furthermore, the invention is based on the understanding that during the insertion process (in the assembly state, which can last until the final insertion position or state), wear occurs in the electrical contact points or contact sections of the contact lamellae due to the geometric overlap. Particularly with contact lamellae where the contact sections are in contact with the mating contact element along a large part of the insertion path, significant wear can occur, e.g., also on resistance-reducing and / or corrosion-inhibiting coatings. Conversely, in such a case, a long wear mark forms on the mating contact element during insertion, which can also penetrate any coating that may be applied. Such wear on the contact sections and / or on the surface of the mating contact element can be detrimental to the contact resistance (this can, for example,undesirably increasing the wear and tear) and / or leading to corrosion problems. Such abrasion or wear is exacerbated by repeated assembly and disassembly processes.
[0019] Therefore, there may be a need to provide a contact element that, when the connector is plugged into the mating connector, increases the insertion force as little as possible or only slightly; that exhibits only minimal or no wear of the contact lamellae or their contact sections during plugging (and unplugging); that has a high, defined normal contact force in the final plugging position; that has low electrical contact resistance; that causes as little wear as possible to the contact surface of the mating contact element, especially in the immediate vicinity of the contact points in the final plugging position (preferably exhibiting no or only a short wear mark that ends at the contact point); that is designed as simply as possible, is easy and inexpensive to manufacture; that requires little space, especially parallel to the contact direction; and that preferably has only a single side or...The surface of the mating contact element or a mating connector comes into mechanical contact and can preferably be plugged together and unplugged more than once without major losses in electrical performance with the mating contact element.
[0020] Advantages of the invention R. 414796
[0021] - 4 -
[0022] This need can be met by the subject matter of the present invention according to the independent claims. Advantageous embodiments of the present invention are described in the dependent claims.
[0023] According to a first aspect of the invention, a contact element is proposed for mating along a mating direction with a mating contact element having a contact surface, in particular a flat surface, with a recess. The contact element can, for example, be designed or configured for mounting or arrangement in a connector.
[0024] The contact element comprises a contact lamella with a contacting section configured to electrically contact the mating contact element, in particular its contact surface, along a contacting direction transverse to the insertion direction. The contact element further comprises, or includes, an additional lamella with a coupling section. The contact lamella and the additional lamella are arranged on a common, elastically reversible deflection area of the contact element, such that a deflection of the additional lamella, in particular parallel to the contacting direction, results in a deflection of the contact lamella in the same direction. Viewed along the contacting direction, the coupling section projects further from the contact element than the contacting section, and in an assembly state when the contact element is inserted into the mating contact element, the coupling section is in contact with the mating contact element, in particular with its contact surface.The coupling section engages in the recess in a final insertion state, which represents a fully connected state of contact element and counter-contact element, whereby the contacting section in the final insertion state contacts the contact surface with a defined contact normal force.
[0025] This advantageously ensures that, in the final mating state, the contact element exerts a defined normal contact force on the mating contact element through the contact lamella or its contacting section. Simultaneously, the contacting section of the contact lamella is protected from wear during the mating process, and the contact surface of the mating contact element in the area or surrounding the contact point, or in the material overlap with the contact lamella, is also protected from wear. The additional lamella with its coupling section projects further towards the contact surface or the mating contact element than the contact lamella. During the assembly process, the additional lamella couples with the contact surface, causing a deflection of the additional lamella and thus of the deflection area against the direction of contact. (See R. 414796)
[0026] - 5 -
[0027] In the deflection area, the contact lamella is also deflected in the same direction, so that the contacting section moves away from the mating contact element. For example, it may be designed so that the contacting area of the contact lamella hovers above the mating contact element or the contact surface, or does not touch it at all, or only loosely or with very little force, so that little to no wear occurs between the contact lamella and the mating contact element during assembly and / or disassembly. At the end of the assembly process, the coupling section falls into the recess or engages with it. The deflection section is displaced in the contacting direction. This also displaces the contact lamella in the contacting direction. The contacting section couples with the mating contact element, in particular with the contact surface, and the electrical contact is established with the defined contact normal force.Wear (particularly depending on the length of the additional lamella, especially up to the coupling section, and the resulting lever arm) preferably occurs at most between the coupling section and the mating contact element. In some cases, a contact mark may form on the surface of the mating contact element or the contact surface during the insertion process. However, this wear is not very relevant for the electrical function (or with regard to potential corrosion), since the electrical contact is intended to take place primarily or exclusively between the (unworn or only slightly worn) contact partners: the contacting section and the mating contact element. When disconnecting, the additional lamella is first lifted by the coupling section as it rises out of the recess. The deflection section then also lifts the contacting section on the contact lamella from the surface of the mating contact element.The contact element can be removed from the mating contact element with minimal or no wear on the contact lamella (against the insertion direction). This allows for multiple insertions without impairing the electrical function. Furthermore, this design makes the contact element particularly easy and inexpensive to manufacture and allows for a small form factor, especially when viewed parallel to the contact direction: it is not necessary to provide a spring element or similar feature on the back of the mating contact element. Additionally, the insertion forces are low. For example, it is advantageously unnecessary to provide a raised stop or ramp element on the mating contact element or connector against which the contact lamella would run at the end of the insertion process, causing it to bulge out in the contact direction and establish contact.It is also advantageous to achieve a (very) high contact normal force without this being R. 414796.
[0028] - 6 -
[0029] This has an impact on the contact section during the plugging process, as the wear takes place exclusively or predominantly on the additional lamella or the sacrificial lamella.
[0030] The additional lamella can also be referred to as a sacrificial lamella, for example. The coupling section can also be referred to as a sacrificial section, for example.
[0031] The additional lamella can, for example, be a lamella different from the contact lamella. The additional lamella can, for example, be positioned at a distance from the contact lamella.
[0032] The coupling section of the (at least one) additional lamella can, for example, in a force-free state, such as in the delivery state or in a pre-assembly state, project further from the contact element (in the direction of the mating contact element) than the contacting section of the (at least one) contact lamella. Similarly, in a deflected state, the coupling section can project further from the contact element than the contacting section.
[0033] It is understood that the proposed contact element can be provided or arranged in a connector and that the mating contact element can be provided or arranged in a mating connector. Such connectors and mating connectors can be connected or plugged together, for example, in a straight (180°) or angled configuration (e.g., cable exit angled or not parallel to the plugging direction), such as a 45°, 60°, or 90° configuration, or can be designed for such configurations.
[0034] The contact element can be arranged, for example, on a shielding element or shielding cage, or on a shielding component of a connector. The mating contact element can be, for example, a shielding cage or a shielding element or component, or be formed or arranged there.
[0035] For example, the contact element may be designed within a socket connector. It may also be designed, for example, as a contact blade, particularly a flat blade, of a mating connector.
[0036] The contact element can be, for example, designed in a high-voltage (HV) connector, which is intended, for example, for electrically powered vehicles. Such an HV connector can, for example, be designed for the transmission of voltages of more than 40 V, preferably more than 100 V, and particularly preferably more than 200 V. R. 414796
[0037] - 7 - can, for example, be configured to transmit currents of at least 1 A, preferably at least 10 A, and particularly preferably at least 50 A. The contact element can, for example, be arranged at a compacted end. The mating contact element can, for example, be arranged on an HV component or on an HV blade strip; it can, for example, be configured as a busbar. It is understood that the arrangement of the contact element and mating contact element can also be reversed (contact element, for example, arranged on the HV blade strip, mating contact element arranged on the HV connector, etc.).
[0038] It can be designed, for example, that in the final mating state, the coupling section does not couple with the mating contact element or is not in mechanical contact with it, and in particular, does not exert any force on the mating contact element in the contacting direction. This can be achieved, for example, by the design of the additional lamella or its coupling section and the recess. This allows the contact normal force to be advantageously adjusted and ensures that it is only present between the mating contact element or contact surface on the one hand and the contact lamella or contact section on the other.
[0039] The recess can, for example, have a ramp. This advantageously allows for particularly easy and gentle engagement of the coupling section into the recess during assembly, as well as particularly easy and gentle removal.
[0040] Lifting and sliding the coupling section out of the recess is made possible when disconnecting the components. Such a ramp can, for example, protrude from the contact surface, particularly along the contact direction – in such a case, it is not merely formed as a chamfer at the edge of the recess. The ramp can, for example, be formed or produced by a punching and bending process at the edge of the recess.
[0041] It may be provided, for example, that the coupling section has a larger area than the contacting section (e.g., a flatter embossed coupling point for coupling with the contact surface), in particular an area at least 30% larger or at least 50% larger. In this way, wear can also be advantageously reduced in the areas of the contact surface swept by the additional lamella. This is because the pressure on an individual surface element decreases due to the larger area. Since the coupling section is not required for the transmission of electrical power, such an increased area of the coupling section is not crucial for the electrical performance of the contact element. R. 414796
[0042] - 8 -
[0043] The term "zeigen" is used synonymously with the term "fassen" unless otherwise stated.
[0044] A Cartesian coordinate system may be provided. This can be formed, for example, from the insertion direction, the contact direction perpendicular to it, and a transverse direction perpendicular to both of these directions. If several contact elements are provided on a connector or a shielding component, which are, for example, arranged or formed on different walls, a separate Cartesian coordinate system may be provided for each of these contact elements.
[0045] Alternatively or additionally, a cylindrical coordinate system can be provided in which the insertion direction is circumscribed by a circumferential direction and in which the contacting direction runs in a radial direction perpendicular to the insertion direction, in particular in the direction of the mating contact element or the contact surface.
[0046] In a further training course, it is stipulated that the contact lamella and / or the additional lamella and / or the deflection area is / are pre-tensioned in the direction of the counter-contact element.
[0047] This advantageously makes it particularly easy to apply a defined contact normal force to the mating contact element. The use of additional elements (e.g., separate springs or clamping devices) for applying the contact normal force (and for ensuring the coupling area engages in the recess) can be advantageously dispensed with. The contact element can therefore be designed to be particularly simple, cost-effective, and robust. Furthermore, this also advantageously ensures reliable contact over the lifetime of the component and even under varying operating conditions (e.g., temperature fluctuations, vibrations, etc.).
[0048] The contact lamella and / or the additional lamella and / or the deflection area can be designed to be, for example, elastically reversible.
[0049] In a further development, it is provided that the contact lamella and the additional lamella project from the deflection area in the same direction or hemisphere. This advantageously provides a particularly compact or small-scale contact element. Furthermore, it is advantageously possible to avoid plastic deformation of the deflection area particularly easily. The deflection area R. 414796 can also be advantageously
[0050] - 9 - thereby distributing the forces acting in the contact direction particularly evenly or causing a deflection of the deflection area, e.g. by the additional lamella, a particularly even and easily predictable deflection of the contact lamella.
[0051] Alternatively or additionally, the contact lamella and the auxiliary lamella are designed to run essentially parallel to each other. This allows the contact lamella to be deflected particularly uniformly, without plastic deformation, and with excellent predictability via the deflection range. Plastic deformation of the deflection range during the insertion process can also be advantageously avoided. Furthermore, this design allows the contact element to be made particularly small and compact.
[0052] In a further development, it is provided that the contact lamella has a contact lamella longitudinal extension, in particular viewed along the insertion direction, wherein the additional lamella has an additional lamella longitudinal extension, in particular viewed along the insertion direction, wherein the additional lamella longitudinal extension is longer than the contact lamella longitudinal extension.
[0053] This advantageously allows the additional lamella to couple with the mating contact element or contact surface before the contact lamella couples with the mating contact element or contact surface. The contact lamella is lifted and brought out of engagement or into reduced force engagement with the mating contact element (viewed in the contact direction) before it reaches or overlaps the mating contact element.
[0054] Another advantage is that, for example, a longer lever arm for the additional lamella can be achieved. This results in the deflection section being levered open relatively far parallel to the contact direction, and especially away from the contact direction, with low insertion force. This generates a large elastic restoring force on the (shorter) contact lamella. Once the final insertion position is reached, the deflection area transfers this restoring force, which was previously supported by the additional lamella, to the contact lamella, which is shorter than the additional lamella (the lever lengths of the two lamella types are different) and therefore—if, for example, the same width and material thickness were used—exhibits higher stiffness (the material thickness and lamella width can, however, also differ from those of the additional lamella).The contact normal force, which is thus transferred to the contact lamella and the contacting area via the deflection area, can be increased by simple means without accepting higher insertion forces to R. 414796.
[0055] - 10 - must. Furthermore, this can also advantageously reduce wear on the additional lamella or on the counter-contact element in the area of overlap with the additional lamella. This is because the longer lever arm results in a deflection of the additional lamella with less force acting on the coupling section and therefore with less friction and wear.
[0056] The longitudinal extent can be determined, for example, from the deflection area or root of the respective lamella at one end to another end (possibly a free end) of the respective lamella. In other cases, the longitudinal extent can be determined from the deflection area to the contact section or contact point in the case of contact lamella longitudinal extent, and to the coupling section or coupling point in the case of additional lamella longitudinal extent – because these sections or points can be relatively important for the respective function of the respective lamella, depending on the geometric design (electrical contacting in the case of the contact section and lifting or deflecting the deflection section or deflection area in the case of the coupling section).
[0057] The longitudinal extent of the additional lamellae can be, for example, at least 10% longer or larger, or at least 20% longer or larger, than the longitudinal extent of the contact lamellae. This ensures particularly reliable protection against wear on the contact section. A particularly high normal contact force with low insertion force can be advantageously achieved. Wear on the additional lamella, or on the portion of the mating contact element it covers, is also advantageously reduced during the insertion process.
[0058] In a further training course, it is stipulated that the contact lamella and the additional lamella are designed to be adjacent to each other.
[0059] This advantageously results in a particularly compact design of the contact element. Furthermore, this allows the contact element to be manufactured particularly easily and cost-effectively.
[0060] For example, it may be provided that the contact lamella and the additional lamella are formed next to each other or adjacent to each other when viewed in the transverse direction.
[0061] In a further training course, it is stipulated that the contact lamella is designed as a stamped and bent part and / or that the additional lamella is designed as a stamped and bent part. R. 414796
[0062] - 11 -
[0063] This advantageously enables a particularly simple and cost-effective manufacturing process.
[0064] In a further training course, it is stipulated that the contact lamella and / or the additional lamella be designed to be self-supporting. This advantageously results in a particularly simple, robust and durable construction of the contact element.
[0065] Alternatively or additionally, the auxiliary lamella and / or the contact lamella can be connected at both ends. The connection can be located in a connection area or a further deflection area. This deflection area can be diametrically opposed to the deflection area (e.g., when viewed along the extension direction of the lamella(s)). In other words, the respective lamella can be connected at a first end to the deflection area. It can also be connected at a second end, particularly to a further deflection area. This deflection area can be designed to be elastically reversible. It can be pre-tensioned in the contact direction. This can advantageously provide a particularly high contact normal force.
[0066] It is understood that, for example, only the contact lamella, only the additional lamella, or both lamellae can be attached on both sides. If more than one lamella of a type is provided, then only one of these lamellae, several of these lamellae, or all of these lamellae can be attached on both sides.
[0067] In a further development, it is provided that the contact element has a plurality of contact lamellae. This advantageously results in a particularly high current-carrying capacity. Furthermore, this advantageously reduces the contact resistance to the mating contact element while maintaining high mechanical flexibility. Additionally, this provides redundancy should one or more contact lamellae fail or (temporarily) lose contact with the mating contact element (e.g., due to vibrations, thermally induced deformation, etc.).
[0068] For example, it can be provided that several or all contact lamellae are arranged at the deflection point. This advantageously distributes the defined contact normal force particularly evenly across the contact lamellae. Furthermore, this advantageously ensures that the contact lamellae located there are raised and lowered simultaneously. R. 414796
[0069] - 12 -
[0070] Alternatively or additionally, the contact element is provided with a plurality of additional lamellae. This allows the force applied to the deflection area to be distributed across several points, resulting in a more uniform deflection, particularly transverse to the contacting and insertion directions, and preventing plastic deformation at the connection point of the individual additional lamellae. Furthermore, this advantageously reduces the force exerted by the deflection area on the individual coupling sections and thus on the mating contact element or the contact surface, thereby reducing wear on the coupling sections and the contact surface sections they cover.
[0071] For example, it may be provided that several or all additional lamellae are arranged in the deflection area.
[0072] For example, the mating contact element may have a separate recess for each coupling section, and these recesses may be separated from one another. In other embodiments, several or all coupling sections may share a recess. As already explained above, it may be provided, by way of example, that one or all of the recesses have a ramp.
[0073] In a further development, it is provided that two additional lamellae form the outermost lamellae in the arrangement consisting of the at least one contact lamella and the plurality of additional lamellae. This advantageously protects the at least one contact lamella particularly well against mechanical impacts from the side and thus makes it especially durable. Furthermore, this advantageously results in a uniform lifting of the contact lamella(s) and also distributes the application of the defined contact normal force particularly evenly across the inner contact lamella(s).
[0074] The arrangement of the additional lamellae as outermost lamellae can be considered particularly with regard to the transverse direction, which - as already described above - extends perpendicular to the insertion direction and perpendicular to the contacting direction.
[0075] In other words, if, for example, two additional lamellae and four contact lamellae are provided, then the following arrangement would result when viewed in the transverse direction: additional lamella - contact lamella - contact lamella - contact lamella - contact lamella - additional lamella. The contact lamellae are thus separated from the additional lamellae. R. 414796
[0076] - 13 - framed If three or more additional slats are provided, the outermost slats (outer left or outer right) can each be additional slats.
[0077] Alternatively, it can be provided that two contact lamellae form the outermost lamellae in the arrangement consisting of at least one additional lamella and the plurality of contact lamellae.
[0078] This advantageously allows for a particularly compact and space-saving arrangement of the slats. Furthermore, it enables a particularly uniform deflection of the deflection area.
[0079] It may be provided, for example, that at least one additional lamella is arranged essentially centrally with respect to the transverse direction at the deflection area.
[0080] For example, it may be provided that exactly one additional lamella is included. This allows the contact element to be particularly compact and space-saving, especially with regard to the transverse direction (compared to an arrangement with several additional lamellae).
[0081] The arrangement of the contact lamellae as the outermost lamellae can be considered particularly with regard to the transverse direction, which - as already described above - extends perpendicular to the insertion direction and perpendicular to the contacting direction.
[0082] In a further development, it is provided that at least two additional lamellae are connected to each other in a connecting section spaced apart from the deflection area. This advantageously provides a particularly robust contact element. The additional lamellae (and also the contact lamellae) can be advantageously well protected against mechanical impacts. The additional lamellae are more robust due to their connection to one another, yet the arrangement is more flexible than a continuous, wide additional lamella. Furthermore, this advantageously results in a particularly uniform deflection of the deflection area and counteracts plastic deformation of the individual elements (additional lamellae and / or their connection to the deflection area). The applied forces and deflections can be exchanged or transmitted via the connecting section between the additional lamellae. R. 414796
[0083] - 14 -
[0084] For example, the connecting section can be positioned further away from the deflection area than the longitudinal extent of the contact lamella. This allows at least one contact lamella to be advantageously protected from mechanical damage, for example, by means of a frame formed by the additional lamellae and the connecting section.
[0085] According to a second aspect of the invention, a contact arrangement is proposed.
[0086] The contact arrangement comprises (or includes) a contact element as described above and a mating contact element. The mating contact element comprises (or includes) a contact surface, in particular a flat surface, that corresponds to the contact element, as well as a recess provided in the contact surface.
[0087] This advantageously enables simple assembly of the contact element and mating contact element with minimal wear on the contact section and contact surface. A high contact normal force can be applied. Simultaneously, the contact assembly is compact, cost-effective, and simple to manufacture without additional parts. Furthermore, only one-sided coupling of the contact element or its lamellae to the mating contact element is required. In other words, the reverse side of the mating contact element, facing away from the contact surface, does not need to be mechanically contacted by any part of the contact element, for example, to apply or generate the contact normal force and / or to cause the contact lamella to lift during the insertion process.
[0088] For example, the recess can be designed to have a ramp. This advantageously allows the coupling section to slide particularly smoothly into the recess when the contact element and mating contact element are connected. It also advantageously allows the coupling section to slide particularly smoothly out of the recess when the contact element and mating contact element are disconnected. During disconnection, the ramp can act like a chamfer onto which the coupling section runs and is then lifted out of the recess by sliding along the ramp.
[0089] The ramp can, for example, be located on one edge of the recess facing the insertion direction, or this edge can be designed as a ramp. R. 414796
[0090] - 15 -
[0091] The ramp can, for example, be formed as a single piece with the contact surface. It can, for example, be punched out from the contact surface and then bent into the recess in the direction of contact, or already bent into it.
[0092] It may be provided, for example, that the ramp (at least in sections) protrudes from the counter-contact element or from the contact surface along the contact direction.
[0093] In a further training course, it is stipulated that the recess is designed as an element chosen from the group: a depression, a through-opening, a slot in the contact surface, a narrowing of the contact surface.
[0094] By providing a recess (which, like a cup, has a closed bottom), a particularly high stability of the counter-contact element or contact surface can be advantageously achieved. Furthermore, the shielding effect is not significantly impaired, or not impaired at all.
[0095] By providing a through-hole (especially one that is completely enclosed or edged), a particularly large deflection range between the assembled state and the final insertion state at the end of the insertion process can be advantageously achieved. Furthermore, this can advantageously result in a particularly high normal contact force acting on the contact lamella, since the additional lamella preferably does not bear against the mating contact element in the final insertion state. At the same time, a completely enclosed through-hole can result in a particularly low mechanical weakening of the mating contact element.
[0096] By providing a slot in the contact surface (the slot can, for example, be designed as a through-hole), the recess can be produced particularly easily. A slot also advantageously offers a particularly large tolerance range for positional deviations during the insertion process. Furthermore, different contact elements or additional lamellae arranged in different positions can be used with one and the same mating contact element, without having to provide a separate mating contact element with dedicated recesses for each contact element. The mating contact element can thus be used advantageously in a modular fashion. R. 414796
[0097] - 16 -
[0098] Providing a narrowing of the contact surface to create the recess allows for a particularly simple and cost-effective design of the mating contact element. For example, a section or corner of an otherwise rectangular part of the mating contact element or contact surface can simply be punched out or omitted. The coupling section then falls into the punched-out, omitted, or narrowed area, which forms the recess, after traveling a certain distance along the contact surface.
[0099] In a further development, it is provided that the contact arrangement has two configurations. A first configuration is provided in which the coupling section is in contact with the contact surface, in particular in mechanical contact, or coupled to the contact surface, and the deflection area is deflected against the contact direction, and in which the contact lamella is located above the contact surface or overlaps with the contact surface (especially when viewed along the contact direction), and the contact section does not touch the contact surface or acts on the contact surface with a force that is at most 20% of the defined contact normal force. A second configuration is also provided in which the coupling section is located in the recess.has fallen into the recess or engages in the recess and the deflection area is shifted in the contacting direction compared to the first configuration and in which the contacting section contacts the contact surface with the defined contact normal force.
[0100] This advantageously results in minimal or no wear on the contact lamella or contact section, and on the overlapping surface of the contact area, during assembly or disassembly. Furthermore, the insertion force required during assembly or disassembly can be advantageously reduced, particularly when more than one contact lamella is used.
[0101] In the first configuration, the deflection area can be elastically deformed, so that it is taut in the direction of the contact surface.
[0102] The first configuration can exist, for example, in a state where the final insertion state has not yet been reached. This could be the case, for instance, during the insertion process or the assembly phase. The first configuration can also exist, for example, during an insertion process or when disconnecting the contact element and R. 414796
[0103] - 17 -
[0104] A counter-contact element must be present, especially when or as soon as the end insertion state or the end insertion position is left.
[0105] The second configuration can be present, for example, when the final plug-in state has been reached.
[0106] According to a third aspect of the invention, a shielding component designed for mounting in or on a connector is proposed.
[0107] The shielding component includes or has a contact element as described above.
[0108] The shielding component can, for example, be configured to electrically contact a counter-shielding component of a mating connector which has the mating contact element or is designed as a mating contact element, in particular by means of the contacting section.
[0109] This advantageously provides a particularly durable, corrosion-resistant shielding component that can be connected to a counter-shielding component with low insertion force, and in particular, can be plugged together. At the same time, a high, defined contact force is achievable. Wear marks or contact marks on the contact surface of the counter-contact element are thus advantageously avoided or reduced, especially in that area of the contact surface used for electrical contact or leading to the final contact points.
[0110] In a further training, it is stipulated that the contact element is formed in one piece or integrally with the shielding component, in particular from the same workpiece and / or the same material.
[0111] This makes the contact element and shielding component particularly easy and cost-effective to manufacture. Furthermore, no additional joining process (e.g., material-bonded, force-fit, or form-fit) is necessary, thus avoiding the formation of electrical contact resistance. Additionally, a particularly effective shielding effect can be achieved, especially preventing shielding leaks.
[0112] The contact element, or at least the lamellae, can be, for example, cut or punched out from a wall of the shielding component. R. 414796
[0113] - 18 -
[0114] For example, it may be intended that the screen component is designed as a stamped and bent part.
[0115] For example, the shielding component may have multiple walls or partitions. It may, for example, be box-shaped, with the walls or partitions enclosing an interior space within the shielding component. It may, for example, have a contact element as described above on more than one wall, or have more than one wall, at least partially, configured as a contact element as described above.
[0116] In a further aspect of the invention, a connector may be provided, in particular a connector for the transmission of high-frequency data (e.g., with data rates of at least 100 Mbit / s or at least 500 Mbit / s) or a high-voltage connector, in particular for the transmission of high power (e.g., designed for use at at least 100 V and / or for the transmission of at least 1 kW of power or at least 10 kW of power). The connector may, for example, be designed for mating with a mating connector. The connector may, for example, have a housing. The connector may, for example, have at least one contact element. The at least one contact element may, for example, be arranged in the housing. Depending on the application, the connector may optionally, for example, have a shielding component as described above or a counter-shielding component as described above. The shielding component may, for example, include the contact element or it may, for example,The shielding component must be designed, at least in part, as a contact element. For example, a wall or part of a wall of the shielding component can be designed as a contact element. The mating contact element can, for example, be located in the mating connector. The mating connector can, for example (depending on the application), optionally include a mating shielding component as described above or a shielding component as described above.
[0117] Drawings
[0118] Further features and advantages of the present invention will become apparent to those skilled in the art from the following description of exemplary embodiments, which, however, are not to be construed as limiting the invention, with reference to the accompanying drawings. R. 414796
[0119] - 19 -
[0120] Figure 1 shows a schematic side view of a connector assembly with a shield assembly from the prior art; a schematic perspective view of the shield assembly from Figure 1 in the unassembled state with a shield component having several contact elements and a counter-shield component forming several mating contact elements; a schematic top view of a contact arrangement, comprising a contact element and a mating contact element, from the prior art in a pre-assembly state; a schematic top view of the contact arrangement from Figure 3 in an assembled state; a schematic top view (Fig. 5a) of and a schematic cross-sectional view (Fig. 5b) through the contact arrangement from Fig. 3 in a final mating state; a schematic top view of a contact arrangement comprising a contact element and a mating contact element in a pre-assembly state; a schematic top view (Fig. 7a) of the and a schematic cross-sectional view (Fig. 7b) through the contact arrangement from Fig. 6 in an assembly state;
[0121] Figs. 8a, 8b: a schematic top view (Fig. 8a) of and a schematic cross-sectional view (Fig. 8b) through the contact arrangement from Fig. 6 in a final mating state; R. 414796
[0122] - 20 -
[0123] Figs. 9a to 9c: schematic top views of various counter-contact elements;
[0124] Figs. 10a, 10b: schematic top views of and associated cross-sections through various counter-contact elements.
[0125] Figure 1 shows a schematic side view of a connector assembly 200 with a shield assembly 300, which has a contact arrangement 100 from the prior art. It is understood that such a connector assembly 200 or a similar shield assembly 300 can be converted into a connector assembly 200 or shield assembly 300 according to the invention by using the contact arrangement 100 or contact element 1 described below according to the invention.
[0126] Figure 2 shows a schematic perspective view of the screen assembly 300 from Fig. 1 in the unassembled state.
[0127] Figures 1 and 2 are described together below.
[0128] The connector assembly 200 from Fig. 1 comprises a connector 2 and a mating connector 77 (an example of a connected state is shown here). The connector 2 and the mating connector 77 are connected along a mating direction Z. They are shown here as an example of an angled connector with a so-called 90° mating, although a straight mating (180° mating) is also conceivable (in this case, the section of the connector 2 extending to the right in Fig. 1 would extend upwards). The connector 2 can, for example, be designed as an HV connector for transmitting high power at high voltages (e.g., voltages of at least 50 V or at least 100 V, preferably at least 200 V, and powers of, for example, at least 1 kW, at least 5 kW, or at least 10 kW), for example, for use in or on an electrically powered vehicle. The mating connector 77 can, for example, be designed as aIt can be designed as a kind of knife strip. It can be arranged, for example, on a component such as an inverter, a battery, an electric machine, etc.
[0129] Connector 2, shown here as an example, has a shielding component 10. This is located in a connector housing 13, or inside the connector housing 13 of R. 414796.
[0130] - 21 -
[0131] Connector 2 is arranged. Inside the shield component 10, at least one contact element (not shown here) can be provided, which is contacted or can be contacted with a mating contact element (also not shown) of the mating connector 77. Furthermore, connector 2 has, by way of example, an optional frame part 14, which is connected to the connector housing 13, e.g., inserted into it. The frame part 14 can, by way of example, be positively locked and / or force-locked and / or material-locked and / or connected to the connector housing 13 by means of fastening means; it can, for example, be clipped to it. Connector housing 13 and frame part 14 form a housing assembly 15.
[0132] The mating connector 77 here has, by way of example, a mating connector housing 79 and a collar 80, which is formed here by way of example on the mating connector housing 79. Furthermore, the mating connector 77 has, by way of example, a shielding component 78, which is arranged inside the collar 80.
[0133] Shield component 10 and counter-shield component 78 together form the shield assembly 300.
[0134] Furthermore, a sealing element 81 is provided, which is arranged between a wall of the connector housing 13 and the collar 80. Here, it forms an example of a radial seal, in particular between the connector housing 13 and the mating connector housing 79. This prevents the ingress of dirt and fluid media (e.g., liquids, etc.) into the interior. This advantageously enables, for example, use in an automotive environment with its harsh conditions. The sealing element 81 can be made of, for example, plastic, rubber, or other materials, or comprise one or more of these materials, particularly predominantly.
[0135] The shielding component 10 is shown here as an example of a box-like structure, with an approximately rectangular cross-section (see Fig. 2), and has a plurality of walls 11. It is shown here by way of example that three of these walls 11, arranged adjacent to each other in a circumferential direction U around the insertion direction Z, each have a contact element 1 from the prior art. Each of these contact elements 1 is designed here by way of example in essentially the same way, whereby the number of contact lamellae 3, which will be described later, varies depending on the wall 11. R. 414796
[0136] - 22 -
[0137] The counter-shield component 78 is also shown here as an example of a box-like form, with an approximately rectangular cross-section (see Fig. 2), and has a plurality of counter-shield component walls 82, which are shown here as flat. The counter-shield component 78 is shown here as being inserted into the shield component 10 (especially when the connector 2 is plugged together with the mating connector 77). The outer surfaces or outward-facing sides of the counter-shield component walls 82 (here: three counter-shield component walls 82) are shown here as a prior art, section by section, formed as a mating contact element 70 with an outward-facing contact surface 71.
[0138] The walls 11 (here: three walls 11) have the contact elements 1, or parts of the wall 11 are designed as contact elements 1. Each contact element 1 has a plurality of contact lamellae 3 (in the top view of Fig.
[0139] 1 four contact lamellae 3 are shown in the wall 11 facing the viewer).
[0140] The contact lamellae 3 each have, by way of example, a contacting section 4 (e.g. an embossed contact point) which is designed to electrically contact the mating contact element 70, in particular the contact surface 71, along a contacting direction X transverse to the insertion direction Z.
[0141] For each wall 11 and its associated contact element 1, a separate Cartesian coordinate system can be established as an example. The insertion direction Z is the direction in which the contact element 1 is inserted into the mating contact element 70, the contacting direction X is the direction in which the contact lamellae 3 exert a defined normal force on the mating contact element 70 or the contact surface 71. A transverse direction Y runs perpendicular to the insertion direction Z and the contacting direction X. Here, the contact lamellae 3 are arranged side by side in the transverse direction Y as an example.
[0142] A cylindrical coordinate system can also be used (see, for example, in Fig. 1 next to the left of the two Cartesian coordinate systems). In this system, the direction of rotation U revolves around the insertion direction Z. A radial direction R runs perpendicular to the insertion direction. The contact normal force advantageously acts in the radial direction R towards the contact surface 71. R. 414796
[0143] - 23 - Figures 3, 4, 5a and 5b schematically show a contact arrangement from the prior art and the associated plugging process.
[0144] Figures 3 to 5b are described together below.
[0145] Figure 3 shows a top view of a contact element 1 with a plurality of contact lamellae 3, which are cut from a sheet metal blank. They are arranged side by side and are self-supporting. Extending from their root (contact lamella root 18 or connection section) at one end to the other self-supporting end (free contact lamella end 17), they have a longitudinal extent L. Each lamella has a contact section 4 on its underside facing the plane of the image, e.g., an embossed contact point, which projects furthest in the contact direction X (see Fig. 5b). A first lever arm H1 is the distance between the contact lamella root 18 and the contact section 4 of the respective contact lamella 3.
[0146] Below the contact element 1, a counter-contact element 70 with a flat contact surface 71 facing the viewer is shown.
[0147] Contact element 1 and counter-contact element 70 form a contact arrangement 100.
[0148] Fig. 3 shows a pre-insertion position or a pre-assembly state V in which the contact element 1 and the mating contact element 70 do not yet overlap.
[0149] Figure 4 shows an assembly state M of the contact arrangement. The insertion process of the contact element 1 onto the mating contact element 70 has begun and is already partially complete, although the final insertion state, the end insertion state E, has not yet been reached.
[0150] When the components are plugged together in the Z direction, the contact lamellae 3 or the contact sections 4 overlap with the mating contact element. They run onto the mating contact element 70 or its contact surface 71. They couple with the contact surface 71 or mechanically contact the contact surface 71. It can be provided, for example, that they exert the defined contact normal force directly at or after running onto the contact surface 71. R. 414796
[0151] - 24 -
[0152] If, after the initial contact of the contact lamellae 3 or the contact sections 4 on the contact surface 71 at the edge of the mating contact element 70, the mating process continues, the contact sections 4 rub against the surface of the contact surface 71. Due to the desired normal contact force (e.g., at least 1 N or at least 1.5 N) and the small area of the contact section 4 with the resulting high pressure, wear occurs on the respective contact section 4, which scratches across the contact surface 71. Simultaneously, a wear mark 9 or scratch mark forms under each contact lamella 3 in the contact surface 71, in which the surface of the contact surface 71 is indented and / or worn away.
[0153] Figure 5a shows the final mating state E, in which the mating process is complete. The contact element 1 is in electrical contact with the mating contact element 70 via the contact lamellae 3 or their contact sections 4. The contact lamellae 3 exert the defined normal contact force on the contact surface 71. However, the contact section 4 may already be partially worn due to the mating process and / or the mating path. In particular, a coating intended to reduce contact resistance, mechanical friction during mating, and / or corrosion may already be partially or completely worn away. A wear track 9 is formed on the contact surface 71 from the edge of the mating contact element 70 to the contact point. Here, for example,A dent may have formed and / or material may have been removed, particularly from a surface coating intended to improve electrical properties, reduce mechanical friction, and / or inhibit corrosion. For example, the wear mark 9 can cause corrosion to progress from the edge of the mating contact element 70 to the contact point, undesirably increasing the electrical contact resistance between the contact element 1 and the mating contact element 70.
[0154] Figure 5b shows a cross-section through the contact arrangement 100 in its final mated state. The wear track 9 is indicated, as is the abrasion or wear in the contact section 4 (recognizable by the roughening shown).
[0155] Every insertion process (e.g., when plugging and unplugging) increases wear.
[0156] For the above-mentioned coatings on contact surface 71 and / or the
[0157] Contact section 4 can only be illustrated by materials or alloys from R. 414796.
[0158] - 25 -
[0159] Materials used are selected from the following group: tin, nickel, zinc, silver, gold, palladium.
[0160] Figures 6, 7, 8a and 8b schematically depict a contact arrangement 100 and the associated plugging process.
[0161] Figures 6 to 8b are described together below.
[0162] The contact arrangement 100 comprises a contact element 1 and a mating contact element 70. The mating contact element 70 has a contact surface 71, shown here only as an example of a flat or planar design, which is assigned to the contact element 1, as well as a recess 72 provided in the contact surface 71.
[0163] Here, the recess 72 is shown with a ramp 83, but only as an example and as an option. The ramp 83 projects from the mating contact element 70 or the contact surface 71, particularly along a contact direction X described below (see also Figs. 7b and 8b), thus extending into the plane of the image in Figs. 5, 6, and 7a. The ramp 83 is located at an edge of the recess 72 that corresponds to the contact element 1, or this edge is designed as the ramp 83.
[0164] The mating contact element 70 can, for example, be provided in a mating connector 70 or be intended for mounting in a mating connector 70.
[0165] The contact element 1 can be designed, for example, for mounting in a connector 2.
[0166] The contact element 1 is designed or configured for plugging together along a plugging direction Z with the mating contact element 70, which has a contact surface 71, in particular a flat or planar, with a recess 72.
[0167] The contact element 1 comprises (or has) a contact lamella 3 with a contacting section 4, which is configured to electrically contact the mating contact element 70, in particular the contact surface 71, along a contacting direction X transverse to the insertion direction Z. The contact element 1 further comprises an additional lamella 5 or sacrificial lamella with a coupling section 6 or sacrificial section. The contact lamella 3 and the additional lamella 5 are arranged on a common, elastically reversible deflection area 7 of the contact element 1 as shown in R. 414796.
[0168] - 26 - that a deflection of the additional lamella 5 leads to a deflection of the contact lamella 3 in the same direction. The coupling section 6 projects further from the contact element 1 when viewed along the contact direction X than the contact section 4 (see Figs. 7b, 8b). This applies in particular to a force-free state or a state in which the lamellae 3, 4 are not deflected by the mating contact element 70, e.g., the pre-assembly state V shown in Fig. 6. In an assembly state M (see Fig. 7), when the contact element 1 is plugged together with the mating contact element 70, the coupling section 6 is in contact with the mating contact element 70, in particular with the contact surface 71. The coupling section 6 engages in a final plug-in state E (see Figs.8a and 8b), which represents a fully connected state of contact element 1 and counter-contact element 70, into the recess 72, wherein the contacting section 4 in the final insertion state E contacts the contact surface 71 with a defined contact normal force.
[0169] For example, the coupling section 6 may have a larger (contact) area than the contacting section 4 (e.g., a flatter embossed coupling point for coupling with the contact surface 71), in particular an area at least 30% larger or at least 50% larger (see Figs. 7b and 8b). This advantageously reduces wear on the areas of the contact surface 71 swept by the additional lamella 5. This is because the pressure on a single surface element decreases due to the larger area. Since the coupling section 6 is not required for the transmission of electrical power, such an increased area of the coupling section 6 is not crucial for the electrical performance of the contact element.
[0170] In the illustrated exemplary embodiment, the contact element 1 has a plurality of contact lamellae 3, which are arranged here only by way of example at the deflection area 7 (only four contact lamellae 3 are shown here by way of example). The contact element 1 further has, by way of example, a plurality of additional lamellae 5, which are arranged here only by way of example at the deflection area 7 (only two additional lamellae 5 are shown here by way of example).
[0171] The additional lamella 5 or the coupling section 6 advantageously achieves, as can be seen particularly in Figures 7b and 8b, that the contact lamellae 3 or their contacting sections 4 wear less or not at all during the assembly state M and that the contact lamellae 3 or their contacting sections 4 show no wear mark 9 or only a slight wear mark 9 on the contact surface 71. R. 414796
[0172] - 27 - left behind. Wear occurs only or predominantly on the additional lamellae 5 or sacrificial lamellae or the coupling sections 6 or sacrificial sections, as well as on the areas of the contact surface 71 that these traverse. Furthermore, a high, defined contact normal force is achieved in the final insertion state E. This is because the additional lamellae 5 engage in the recesses 72 or fall or slide (along the ramp 83) into them. The recesses 72 are shown here as through-openings 74. In the final insertion state E (see Figs. 8a and 8b), only or essentially only the contact lamellae 3 are in contact with the contact surface 71.
[0173] The assembly state M (see Figs. 7a and 7b) represents – as already described above in connection with Fig. 4 – a state in which the insertion process of the contact element 1 onto the mating contact element 70 has begun and is already partially completed, but the final insertion state, the end insertion state E, has not yet been reached.
[0174] The additional lamella 5 is, or rather, the two additional lamellae 5 are, by way of example, different from the contact lamella 3 (here: from the contact lamellae 3). They are, by way of example, designed at a distance from the contact lamella 3 or, here, from the contact lamellae 3. Here, by way of example, the contact lamellae 3 and the additional lamellae 4 are arranged side by side in a transverse direction Y perpendicular to the insertion direction Z and the contacting direction X. They extend, by way of example, from the deflection area 7 parallel to the insertion direction Z.
[0175] Here, a deflection of the additional lamella 5 or the additional lamellae 5 parallel to the contact direction X leads to a deflection in the same direction (also parallel to the contact direction X) of the contact lamella 3 or the contact lamellae 3.
[0176] As an example, the contact lamellae 3, the additional lamellae 5, and the deflection area 7 are pre-tensioned in the direction of the counter-contact element 70. Furthermore, as an example, the contact lamellae 3, the additional lamellae 5, and the deflection area 7 are designed to be elastically reversible.
[0177] Contact lamellae 3 and additional lamellae 4 can project section by section out of the image plane (towards the viewer and / or away from the viewer). R. 414796
[0178] - 28 -
[0179] The contact arrangement 100 has two configurations C1 and C2 as examples. A first configuration C1 (see Figs. 7a and 7b) in which the coupling section 6 is in contact with the contact surface 71 and the deflection area 7 is deflected against the contact direction X and in which the contact lamella 3 is located above the contact surface 71 and the contact section 4 does not touch the contact surface 71 or acts on the contact surface 71 with a force that is at most 20% of the defined contact normal force.
[0180] The first configuration C1 exists, for example, as long as the final insertion state E has not yet been reached. However, the insertion process may already have begun. It may therefore be in the assembly state M (see Figs. 7a and 7b).
[0181] In other words, wear on the contact sections 4 and the contact surface 71 in the sections swept over by the contact sections 4 when connecting or disconnecting contact element 1 and counter-contact element 70 is avoided or at least greatly reduced.
[0182] The contact arrangement 100 also has a second configuration C2 (see Figs. 8a and 8b) in which the coupling section 6 is located in or engages in the recess 72 and the deflection area 7 is shifted in the contacting direction X compared to the first configuration C1 and in which the contacting section 4 contacts the contact surface 71 with the defined contact normal force.
[0183] The second configuration C2 is present, for example, when the final plug-in state E is reached.
[0184] It may be provided, for example, that in the final plug-in state E the coupling section 6 is not (any longer) coupled to the ramp 83 (see Fig. 8b).
[0185] The contact lamellae 3 and the additional lamellae 5 project from the deflection area 7 in the same direction or hemisphere. Here, by way of example, all lamellae 3 and 5 project from the deflection area 7 in the insertion direction Z (downwards in Figs. 6 to 8a). All lamellae 3 and 5 are shown here – for illustrative purposes only – as straight.
[0186] The contact lamellae 3 and the additional lamellae 5 run essentially parallel to each other as an example. R. 414796
[0187] - 29 -
[0188] The contact lamellae 3 have a contact lamella longitudinal extent L1, in particular viewed along the insertion direction Z, and the additional lamellae 5 have an additional lamella longitudinal extent L2, in particular viewed along the insertion direction Z. The additional lamella longitudinal extent L2 is, by way of example, longer than the contact lamella longitudinal extent L1, in particular by at least 10% longer or by at least 20% longer.
[0189] In Figures 6 to 8a, the respective longitudinal extent L1, L2 is shown starting from the root (contact lamella root 18 or additional lamella root 19) or the connection point of the respective lamella 3, 5 at the deflection area 7 to the opposite end. However, the longitudinal extent L1, L2 can also be determined from another perspective, starting from the root 18, 19 to the contacting section 4 or to the coupling section 6, since the coupling section 6 or the contacting section 4 are relevant for the deflection of the lamellae 3, 5 and the application of the contact normal force.
[0190] The distance from the root of the contact lamella 18 to the contacting section 4 defines a first lever arm H1 of the contact lamella 3. The distance from the root of the auxiliary lamella 19 to the coupling section 6 defines a second lever arm H2 of the auxiliary lamella 5. The second lever arm H2 can be longer than the first lever arm H1, in particular by at least 10% or even by at least 20%. Here, the second lever arm H2 is, by way of example, approximately twice as long as the first lever arm H1.
[0191] Due in part to the longer second lever arm H2, the bending or deflection of the deflection area 7, which is particularly elastically reversible, can be achieved with a low insertion force. The long second lever arm H2 generates a high torque even with a small force. When the coupling section 6 engages in the recess 71 at the end of the insertion process (in the final insertion state E (see Figs. 8a, 8b)), the retracted deflection area 7 presses the contact lamellae 3, with their short first lever arm H1, onto the contact surface 71. The previously applied torque is now translated into a correspondingly higher contact normal force via the short first lever arms H1.
[0192] The contact lamella 3 and the additional lamella 5 are arranged adjacent to each other as an example. Here, at least the outermost of the four contact lamellae 3 are adjacent to one of the two additional lamellae 5. R. 414796
[0193] - 30 -
[0194] The contact lamellae 3 and the additional lamellae 5 are shown here as examples of stamped and bent parts.
[0195] The contact lamellae 3 and the additional lamellae 5 are shown here as examples of self-supporting design.
[0196] It is understood that in other embodiments - not shown here - the contact lamella(s) 3 and / or the additional lamella(s) 5 may be connected on both sides, in particular in a further deflection area or connection area.
[0197] Here, by way of example, it is provided that two additional lamellae 5 (here: the exactly two additional lamellae 5) form the outermost lamellae in the arrangement consisting of the contact lamellae 3 present here in the majority and the majority of additional lamellae 5, especially when viewed in the transverse direction Y.
[0198] It is understood that in other embodiments - not shown here - two contact lamellae 3 form the outermost lamellae in the arrangement consisting of at least one additional lamella 5, in particular exactly one additional lamella 5, and the plurality of contact lamellae 3, especially when viewed in the transverse direction Y.
[0199] In Figs. 6, 7a and 8a it can be clearly seen that, by way of example, at least two additional lamellae 5 are connected to each other in a connecting section 8 spaced apart from the deflection area 7.
[0200] The connection is formed here by a cross member 16, which runs in the transverse direction Y between the two additional lamellae 5. This cross member 16, viewed here as an example, runs parallel to the insertion direction Z between the deflection area 7 and the coupling sections 6. The coupling sections 6 are formed in the area of the cantilevered ends of the additional lamellae 5 and are spaced in the insertion direction Z from the connection of the cross member 16 to the additional lamellae 5 or the connecting sections 8 (the coupling sections 6 are, for example, arranged or formed further away from the deflection area 7 than the cross member 16). This advantageously allows for flexible contact of the contact surface 71 during the insertion process on the one hand, and sufficient transverse stiffness in the transverse direction Y to raise or deflect the deflection area 7 uniformly during the insertion process. At the same time, R. 414796
[0201] - 31 -
[0202] The risk of bending of the additional lamellae 5 in the transverse direction Y (e.g. in the case of mechanical impacts) is reduced, as they are supported against each other via the cross strut 16.
[0203] The connecting section 8 is shown here as an example further away from the deflection area 7 than the longitudinal extent L1 of the contact lamella of the contact lamella 3. This also applies here as an example to the cross strut 16.
[0204] Here, for example, the contact lamellae 3 are all framed by the two additional lamellae 5 on their sides, by the deflection area 7 at their contact lamella roots 18, and by the crossbar 16 at their free contact lamella ends 17. This means that the contact lamellae 3 are particularly well protected against mechanical influences, and the contact element 1 is particularly robust and stable.
[0205] In principle, the connecting section 8 can, for example, be located at the same height as the longitudinal extension L1 of the contact lamellae or even closer to the deflection area 7. In such a case, the cross member 16 can, for example, form an arc-like frame around the contact lamellae 3. If two or more additional lamellae 5 are arranged side by side (e.g., framed by contact lamellae 3), the cross member 16 and / or the connecting section 8 can also be located at the same height as the longitudinal extension L1 of the contact lamellae or even closer to the deflection area 7 than the longitudinal extension L1 of the contact lamellae.
[0206] Figures 9a, 9b, 9c, 10a, and 10b illustrate various embodiments of the counter-contact element 70, its contact surface 71, and the recess 72. In these exemplary embodiments of counter-contact elements 70 and contact surfaces 71, a ramp 83 is provided. This ramp 83 projects, for example, beyond the contact surface 71 in Figure 10a. It can also project from or beyond the contact surface 71 in Figures 9a, 9b, and 9c. However, it is also conceivable that the ramp does not project beyond the contact surface 71 in the embodiments shown in Figures 9a, 9b, and 9c.
[0207] In principle, all counter-contact elements 70 or contact surfaces 71 shown in Figures 6 to 10b are also conceivable without ramp 83 or with a ramp 83 that does not extend beyond the contact surface 71.
[0208] Figures 9a to 10b are described together below.
[0209] The recess 72 can be designed, for example, as an element chosen from the group: a depression 73 (see Fig. 10b), a through-opening 74 (see Figs. 9b, 10a), R. 414796
[0210] - 32 - a slot 75 in the contact surface 71 (see Fig. 9a), a narrowing 76 of the contact surface 71 (see Fig. 9c).
[0211] In Figures 10a and 10b, cross-sections through the counter-contact element 70 in the area of the recesses 72 are shown below the top views of the contact surface 71. When configured as a through-opening 74, the counter-contact element 70 is completely open in the area of the recess 72; it is penetrated by the recess 72 (see Fig. 10a below). When configured as a recess 73, a base remains in the recess 72 (see Fig. 10b below). The constriction 76 and the slot 75 can, for example, extend through the counter-contact element 70 or be designed in the form of a recess 73.
[0212] As shown above in Figures 1 and 2, a shielding component 10, in particular designed for mounting in or on a connector 2, can be provided. The shielding component 10 can, for example, have a contact element 1 as described in connection with Figures 6 to 8b. In particular, the contact element 1 has an additional contact lamella 5 – it is understood that the contact element 1 of this shielding component 10 can also be designed differently than shown in Figures 6 to 8b. The shielding component 10 can, for example, be designed to electrically contact a counter-shielding component 78 of a mating connector 77, which has the mating contact element 70 or is designed as a mating contact element 70. Such contacting can, for example, be effected by means of the contacting section 4 or contacting sections 4, in particular in the final mating state E. This mating contact element 70 can, by way of example, be designed as described in connection with Figures 6 to 8b.As described in sections 6 to 10b, it in particular has a recess 72 for the engagement of the additional lamella 5 or of its coupling section 6 in the final plug-in state E.
[0213] The contact element 1 can, for example, be formed in one piece with the shielding component 10; in particular, it can be cut or punched free from a wall 11 of the shielding component 10.
[0214] Alternatively or additionally, it may be provided, for example, that the screen component 10 is designed as a stamped and bent part.
[0215] In other embodiments, a connector 2 with a contact element 2 is provided, wherein the mating connector 77 can be designed, for example, as a circuit board, a plug-in card, or a circuit board and is inserted into a receiving opening of the connector 2 R. 414796
[0216] - 33 - can be inserted, or where the connector 2 can be plugged onto the circuit board or PCB along a plug-in direction. The contact element 1 can, for example, have at least one contact lamella 3 which, in the final plug-in position E, contacts a contact surface 71 of the mating contact element 70, which is, for example, metallic. The mating contact element 70 or the contact surface 71 can, for example, be located on a top side of the circuit board or plug-in card.
[0217] Finally, it should be noted that contact element 1, mating contact element 70, and contact arrangement 100 are intended, suitable, and / or designed for use in motor vehicles, inverters, motors, control units, batteries, chargers, or generators. However, contact element 1, contact arrangement 100, connector 2, mating connector 77, and connector arrangement 200 are not limited to such applications.
Claims
1. R. 414796 - 34 - Claims:
1. Contact element (1), in particular for mounting in a connector (2), for plugging together along a plugging direction (Z) with a mating contact element (70) having a contact surface (71), in particular a flat surface, with a recess (72); the contact element (1) comprising: - a contact lamella (3) with a contacting section (4) which is configured to electrically contact the mating contact element (70), in particular the contact surface (71), along a contacting direction (X) transverse to the insertion direction (Z); - an additional lamella (5), in particular different from the contact lamella (3), and in particular spaced apart, with a coupling section (6); wherein the contact lamella (3) and the additional lamella (5) are arranged on a common, elastically reversible deflection area (7) of the contact element (1), such that a deflection of the additional lamella (5), in particular parallel to the contacting direction (X), leads to a deflection of the contact lamella (3) in the same direction, wherein, in particular in a force-free state, in particular in a pre-assembly state (V), the coupling section (6) projects further from the contact element (1) than the contacting section (4) when viewed along the contacting direction (X), wherein in an assembly state (M) when the contact element (1) is plugged together with the mating contact element (70), in particular with the contact surface (71), wherein the coupling section (6) in a final plug-in state (E),which represents a fully assembled state of contact element (1) and counter-contact element (70), engages in the recess (72), wherein the contacting section (4) in the final assembly state (E) contacts the contact surface (71) with a defined contact normal force.
2. Contact element (1) according to claim 1, wherein the contact lamella (3) and / or the additional lamella (5) and / or the deflection area (7) is biased in the direction of the counter-contact element (70). R. 414796 - 35 - isf / are, wherein in particular the contact lamella (3) and / or the additional lamella (5) and / or the deflection area (7) is / are elastically reversible.
3. Contact element (1) according to one of the preceding claims, wherein the contact lamella (3) and the additional lamella (5) project from the deflection area (7) in the same direction or hemisphere, and / or wherein the contact lamella (3) and the additional lamella (5) are substantially parallel to each other.
4. Contact element (1) according to one of the preceding claims, wherein the contact lamella (3) has a contact lamella longitudinal extension (L1), in particular viewed along the insertion direction (Z), wherein the additional lamella (5) has an additional lamella longitudinal extension (L2), in particular viewed along the insertion direction (Z), wherein the additional lamella longitudinal extension (L2) is longer than the contact lamella longitudinal extension (L1), in particular by at least 10% longer or by at least 20% longer.
5. Contact element (1) according to one of the preceding claims, wherein the contact lamella (3) and the additional lamella (5) are formed adjacent to each other.
6. Contact element (1) according to one of the preceding claims, wherein the contact lamella (3) and / or the additional lamella (5) is designed as a stamped and bent part.
7. Contact element (1) according to one of the preceding claims, wherein the contact lamella (3) and / or the additional lamella (5) is designed to be self-supporting or to be connected on both sides.
8. Contact element (1) according to one of the preceding claims, wherein the contact element (1) has a plurality of contact lamellae (3) which are arranged in particular at the deflection area (7), and / or wherein the contact element (1) has a plurality of additional lamellae (5) which R. 414796 - 36 - are arranged in particular at the deflection area (7).
9. Contact element (1) according to the preceding claim, wherein two additional lamellae (5) form the outermost lamellae in the arrangement consisting of the at least one contact lamella (3) and the plurality of additional lamellae (5), in particular viewed in a transverse direction (Y) extending perpendicular to the insertion direction (Z) and perpendicular to the contacting direction (X), or wherein two contact lamellae (3) form the outermost lamellae in the arrangement consisting of the at least one additional lamella (5), in particular exactly one additional lamella (5), and the plurality of contact lamellae (3), in particular viewed in a transverse direction (Y) extending perpendicular to the insertion direction (Z) and perpendicular to the contacting direction (X).
10. Contact element (1) according to one of the two preceding claims, wherein at least two additional lamellae (5) are connected to each other in a connecting section (8) spaced apart from the deflection area (7), in particular wherein the connecting section (8) is spaced further apart from the deflection area (7) than a contact lamella longitudinal extension (L1) of the contact lamella (3).
11. Contact arrangement (100), showing the contact arrangement (100): - a contact element (1) according to one of the preceding claims; - a counter-contact element (70); comprising the counter-contact element (70): - a contact surface (71) assigning to the contact element (1), in particular a flat contact surface; - a recess (72) provided in the contact surface (71), in particular wherein the recess (72) has a ramp (83), in particular wherein the ramp (83) projects from the counter-contact element (70) along the contact direction (X).
12. Contact arrangement (100) according to the preceding claim, wherein the recess (72) is configured as an element selected from the group: R. 414796 - 37 - a depression (73), a through-hole (74), a slot (75) in the contact surface (71), a narrowing (76) of the contact surface (71).
13. Contact arrangement (100) according to one of the two preceding claims, wherein the contact arrangement (100) has two configurations (C1 , C2), - an initial configuration (C1), in which — - especially the final insertion state (E) has not yet been reached, — - the coupling section (6) is in contact with the contact surface (71) and the deflection area (7) is deflected in the opposite direction to the contact direction (X), — - the contact lamella (3) is located above the contact surface (71) and the contacting section (4) does not touch the contact surface (71) or acts on the contact surface (71) with a force that is at most 20% of the defined contact normal force, - a second configuration (C2), in which — - in particular the final plug-in state (E) is reached, — - the coupling section (6) is located in or engages in the recess (72) and the deflection area (7) is shifted in the contact direction (X) compared to the first configuration (C1), — - the contacting section (4) contacts the contact surface (71) with the defined contact normal force.
14. Shielding component (10) configured for mounting in a connector (2), wherein the shielding component (10) has a contact element (1) according to one of claims 1 to 11, wherein the shielding component (10) is in particular configured to electrically contact a counter-shielding component (78) of a mating connector (77) having the mating contact element (70) or designed as a mating contact element (70), in particular by means of the contacting section (4).
15. Shielding component (10) according to the preceding claim, wherein the contact element (1) is formed integrally with the shielding component (10), in particular is cut or punched free from a wall (11) of the shielding component (10), in particular wherein the shielding component (10) is formed as a stamped and bent part.
Citation Information
Patent Citations
Housing assembly for a connector, connector, connector arrangement and method for assembling a connector
DE102023202154A1
ELECTRICAL L-CONNECTOR FOR A CIRCUIT BOARD AND MANUFACTURING METHOD FOR IT
DE102018222267A1
Shielding plate as contact spring in a connector
DE102021104729A1
Pluggable transceiver with cover resilient member
US20050227518A1
Right angle header assembly
US20140273628A1