High-current plug-in connector system and method for setting its total disconnection force

Abstract

The problem addressed by the invention is to allow adjustment of the total disconnection force for a high-current plug-in connector system to a predefined value using simple means and to make corresponding upgrading of existing high-current plug-in connector systems as straightforward as possible. For this purpose, the invention proposes equipping a plug-in connector (1) and a mating plug-in connector (2) of the plug-in connector system with at least one further plug-in contact (100) and, respectively, at least one further mating plug-in contact (200). The at least one further plug-in contact (100) and the at least one further mating plug-in contact (200) can be plug-connected to each other and, in the plug-connected state, disconnected from each other again with the application of an individual disconnection force and are thus jointly designed for generating a predefined amount of said total disconnection force for the plug-in connector system. As a result, the desired total disconnection force can be set by selecting the suitable further plug-in contacts and mating plug-in contacts and, for example, the current intensity actually used can be adapted individually, for example by the end user, with only a small amount of effort, such that connections that transmit particularly high electric current are also particularly difficult to disconnect, in particular for safety reasons.

Description

[0001] The invention relates to a high-current connector system comprising a connector and a mating connector, which are both pluggable and separable from each other under a total separation force, wherein the connector has several identical high-current plug contacts, and wherein the mating connector has several high-current mating contacts that can be plugged into the high-current plug contacts, wherein in the plugged state each of the high-current plug contacts is mechanically and electrically connected to one of the high-current mating contacts to form a high-current plug contact pair for the transmission of electrical energy.

[0002] The term "total separation force" refers to the force required to separate a connector and its mating connector, both of which are part of the high-current connector system.

[0003] Such high-current connector systems can be used, for example, to transmit electrical energy. In particular, a total electrical current with high total current ratings of at least up to 16 A ("amperes"), e.g., at least up to 20 A, preferably at least up to 35 A, particularly preferably at least up to 70 A, in particular at least up to 125 A, for example at least up to 300 A, and in particular even at least 900 A, can be transmitted via the high-current connector system, and thus via both the connector and the mating connector. State of the art

[0004] In the prior art, connector systems consisting of a connector and a mating connector are known. The connector can be plugged into the mating connector and can be disconnected from the mating connector under a total disconnect force. In the prior art, this total disconnect force is generally determined rather randomly from frictional forces such as the sum of the insertion and withdrawal forces of the electrical contacts (especially those caused by friction), the friction of a seal on the connector housing, etc.

[0005] Practical applications have revealed requirements that stipulate certain connector systems should possess a defined total disconnection force, depending on their function. In particular, high-current connector systems designed for transmitting exceptionally high currents must, for safety reasons, have a particularly high total disconnection force.

[0006] A disadvantage of the current state of the art is that the strength of the total separation force cannot be easily adjusted in existing high-current connector systems.

[0007] The German Patent and Trademark Office has searched the following prior art in the priority application for the present application: DE 10 2019 111 847 A1, DE 10 2019 121 975 A1, DE 11 2018 006 768 T5, DE 14 65 689 A and US 2021 / 0194167 A1.

[0008] Further prior art documents include: CN 102 306 879 A1, DE 94 00 329 U1, CN 102 306 879 B, DE 44 00 478 C1, DE 28 55 867 A1, US 2022 / 260008 A1, CN 201 629 434 U, CN 102 437 453 A, DE 10 2019 111 847 A1, WO 2019 / 135374 A1, DE 10 2019 121 975 A1, DE 36 02 296 A1, EP 3 211 727 A1. Task

[0009] The object of the invention is to provide a high-current connector system by which the overall disconnect force of the high-current connector system can be adjusted to a predetermined value – particularly individually – using the simplest possible means. Preferably, existing high-current connector systems should be retrofitted as easily as possible. Particularly preferably, as few new components as possible should be added or modified compared to existing high-current connector systems. In particular, the so-called "modularity" of the high-current connector system should be maintained as much as possible, i.e., its components should be as widely available on the market as possible and compatible with as many other commercially available components as possible, i.e., at least pluggable and preferably also jointly mountable to form a connector system, especially a high-current connector system.

[0010] The problem is solved by the subject matter of claim 1.

[0011] A high-current connector system consists of a connector and a mating connector. The connector and mating connector are both pluggable and detachable under a combined separation force. The connector has several identical high-current contacts. The mating connector has several high-current mating contacts that are pluggable with the high-current connectors. When mated, each high-current contact is mechanically and electrically connected to one of the mating contacts to form a high-current contact pair for the transmission of electrical energy.

[0012] Furthermore, the connector has an additional plug contact, and the mating connector has an additional mating contact. This additional plug contact, together with its mating contact, forms another plug contact pair. The additional plug contact and its mating contact of the plug contact pair can be mated together by applying a single insertion force and, in the mated state, can be separated again by applying a single separation force. Thus, together they can generate a predetermined amount of the aforementioned force.

[0013] Total separation force is set, wherein the individual separation force of each additional plug contact pair is at least 1.5 times its said individual insertion force.

[0014] In this and the following, it is clear to the expert that the term "single disconnect force" refers to exactly one plug contact pair in each case.

[0015] Preferably, the single separating force can be at least 1.75 times the single insertion force.

[0016] In particular, the single separating force can be at least twice as large as the single insertion force.

[0017] For example, the single separating force can be at least 2.5 times the single insertion force.

[0018] In a particularly preferred embodiment, the individual separating force can even be at least three times, in particular at least four times, and especially preferably at least five times, the individual insertion force.

[0019] Advantageous embodiments of the invention are specified in the dependent claims and the following description.

[0020] One advantage of the invention is that retrofitting existing high-current connector systems is particularly straightforward. Ultimately, compared to existing high-current connector systems, only one high-current connector pair needs to be replaced with another.

[0021] A particular advantage is that the so-called "modularity" of the high-current connector system is largely preserved. This means that all its components may already exist on the market and can also be used with other commercially available components. They are therefore not only compatible with standard connectors, but preferably also compatible with other commercially available components to form a different connector system / high-current connector system. The aforementioned solution differs significantly in this respect from other conceivable, and in this regard inferior, approaches where, for example, one or more connector housings, a locking system, or other components would have to be modified to alter the overall disconnection force.

[0022] One advantage of the invention is that the overall disconnect force of a high-current connector system can be individually adjusted to a predetermined value using very simple means. Ultimately, only at least one of the high-current plug contacts of a standard high-current connector system needs to be replaced by another plug contact, and one of the mating high-current plug contacts of the standard high-current connector system needs to be replaced by another mating contact. Replacing a plug contact is a common procedure frequently performed by end users and therefore requires minimal effort.

[0023] In an advantageous embodiment, to generate a specific individual disconnection force, the additional plug contact and the mating plug contact can be designed accordingly at the factory, such that the total disconnection force corresponds at least to the current-carrying capacity of the high-current connector system. This has the advantage that the adaptation can be carried out at the factory and the high-current connector system can be delivered to the end user pre-configured with this adaptation.

[0024] In a further advantageous embodiment, the high-current connector system can additionally have a whole set of different plug contacts and mating contacts, which, in combination, generate different total disconnecting forces. From this set, an additional plug contact and mating contact can be selected and inserted into the connector and mating connector, in order to set the desired / predefined total disconnecting force, particularly in combination with each other. This has the advantage that the end user can individually adjust the total disconnecting force to their specific application, e.g., the range of the actual transmitted current.

[0025] A method for adjusting the total separation force of a high-current connector system therefore provides that the adjustment of the specified total separation force is carried out by selecting a suitable plug contact and a suitable mating contact from the said set of various mating contacts and mating contacts.

[0026] In a preferred embodiment, the additional plug contact and the additional mating plug contact can be latched together in the plugged-in state, so that the individual release force generated during their unlatching produces the total release force or at least a part thereof. Alternatively or additionally, frictional forces can also play a role.

[0027] In a further preferred embodiment, each high-current plug contact pair can be designed to transmit currents of at least 10 A ("amperes"), preferably at least 20 A, particularly preferably at least 40 A, in particular at least 60 A, for example at least 70 A and in particular even at least 80 A when plugged in.

[0028] The term "designed" means that the respective high-current plug contact pair can be permanently loaded with currents "up to" the specified maximum value, i.e. with currents that correspond to or are less than the specified maximum value.

[0029] It is clear to the expert that the high current-carrying capacity, especially at a given electrical voltage, is advantageous for the transmission of the highest possible electrical energies.

[0030] In a further preferred embodiment, the said single separating force is at least 15 N ("Newtons"), preferably at least 20 N, particularly preferably at least 25 N, in particular at least 60 N, for example at least 75 N, for example at least 85 N and preferably even 97 N and more, e.g. at least 100 N, and possibly even more than 110 N and more, i.e. e.g. 120 N and even more.

[0031] Specified separating forces can therefore be, for example: 18 N; 22 N; 27 N; 67 N; 89 N; 111 N; 127 N.

[0032] While a connector manufacturer specifies and assigns maximum current carrying capacity, the total disconnect force can be adjusted for a permanent installation by the end user based on the actual current transmitted by the entire high-current connector system. This total current is the sum of the currents flowing through each high-current connector pair.

[0033] For example, for a total current of 15 A actually used, the specified total cutting force can be 18 N.

[0034] For example, for an actual total current of 16 A to 20 A, the specified total cutting force can be 22 N.

[0035] For example, for an actual total current of 21 A to 35 A, the specified total cutting force can be 27 N.

[0036] For example, for an actual total current of 36 A to 70 A, the specified total cutting force can be 67 N.

[0037] For example, for an actual total current of 71 A to 125 A, the specified total cutting force can be 89 N.

[0038] The connector has at least one contact carrier made of an electrically insulating material. The contact carrier can be a single piece, forming part of a one-piece connector insert ("monoblock"). Alternatively, the connector can have multiple connector modules mounted in a modular connector frame to form a modular connector insert. In the latter case, each connector module has a contact carrier, resulting in a connector with multiple contact carriers.

[0039] The connector has a contact chamber for each of the aforementioned high-current contacts and also for each of the aforementioned additional contacts. The contact chambers are arranged within the contact carrier – or distributed across and within the multiple contact carriers.

[0040] Furthermore, the mating connector has at least one mating contact carrier made of an electrically insulating material. The mating contact carrier can be a single piece as part of a mating connector insert ("monoblock"). However, the mating connector can also have several additional mating connector modules that are installed in a mating connector modular frame to form a modular mating connector insert. In the latter case, each module has a mating contact carrier, so the mating connector then has multiple mating contact carriers.

[0041] The high-current-inverse connector has a contact chamber for each of the aforementioned high-current mating contacts and also for each of the aforementioned additional mating contacts. These contact chambers are arranged in the contact carrier – or distributed across several contact carriers and within the contact carriers themselves.

[0042] The contact chambers of the connector are identical to each other. The mating contact chambers of the mating connector are identical to each other.

[0043] This benefits the aforementioned modularity in terms of compatibility with other possible product components, because the respective contact carrier / counter-contact carrier can be optionally equipped with high-current contacts / high-current counter-contacts as well as with other plug-in contacts / counter-plug-in contacts in all contact receptacles.

[0044] The at least one contact carrier has a cable connection side and a plug-in side opposite the cable connection side. The contact chambers are designed as through-holes that connect the cable connection side to the plug-in side.

[0045] The at least one mating contact carrier has a mating cable connection side and a mating plug-in side opposite the mating cable connection side. The mating contact chambers are also designed as through-openings that connect the mating cable connection side with the mating plug-in side.

[0046] In this context, it should be noted that the terms "plug side" and "cable connection side," as well as "plug-side" and "cable connection side," and "plug direction," always refer to the corresponding connector or mating connector. The plug direction, in the sense of a vectorial direction, actually refers to the plug axis, which is identical for both the connector and the mating connector. The orientation always refers to the direction of insertion, i.e., towards the other connector / mother connector. When plugged in, the contact carrier and the mating contact carrier are oriented with their plug-side and mating-side facing each other, and their respective cable connection sides facing away from each other.

[0047] In a further preferred embodiment, the aforementioned high-current plug contacts and the additional plug contact are each arranged in and held in one of the contact chambers of the connector. The aforementioned high-current mating contacts and the additional mating contact are each arranged in and held in one of the mating contact chambers of the mating connector.

[0048] This has the advantage that the additional plug contacts – although different from the high-current plug contacts – can be accommodated in uniform contact recesses, which benefits the aforementioned modularity. For example, a conventional contact carrier can be used. Only an additional plug contact needs to be inserted into its contact chamber, which was originally intended for the high-current plug contacts. The same applies, of course, analogously to the mating contact carrier and the additional mating plug contact.

[0049] Both the high-current plug contacts and the high-current mating contacts can be made of one or more electrically conductive material(s), in particular metal, i.e., possibly of one or more metals, and each have a cable connection-side cable connection area and a plug-side high-current plug-in area for mutual mechanical and electrically conductive connection.

[0050] The additional plug contact and the additional mating plug contact can also consist of one or more electrically non-conductive materials, for example plastic and possibly several different plastics.

[0051] Preferably, the additional plug contacts and mating plug contacts are each manufactured in one piece, particularly as a single unit. However, multi-part designs, particularly multi-piece designs, are also conceivable.

[0052] The additional plug contact and the mating plug contact each have a plug-side insertion area for mechanical connection, but no cable-side connection area. This has the advantage of making them less complex to manufacture. Furthermore, it results in them being particularly robust relative to their size.

[0053] The insertion area of ​​the second plug contact is designed as a contact pin, and the insertion area of ​​the second mating plug contact is designed as a contact socket. The contact socket of the second mating plug contact has several slots, which form lamellae pointing in the insertion direction within its insertion area.

[0054] The contact pin of the plug connector has a circumferential groove.

[0055] The contact pin's circumferential groove also features a mating-side retaining surface. This retaining surface is essentially perpendicular, i.e., oriented at an angle between 80° and 120°, particularly between 85° and 95° or between 95° and 105°, and ideally at a right angle of 90° or 100° to the insertion direction in which the contact pin naturally points. These values ​​have proven particularly suitable in experiments, but of course, other angles may be appropriate under different conditions.

[0056] Furthermore, the aforementioned lamellae of the mating contact, pointing in the direction of insertion, can have radially inwardly directed locking hooks at their plug-side ends, which engage in the circumferential groove of the plug contact when plugged in.

[0057] The locking hooks can each have a sliding ramp and a locking surface, wherein the locking surface is in an angular relationship of between 30° and 90°, preferably between 40° and 50° or between 55° and 65°, particularly preferably between 42.5° and 47.5° or 57.5° and 62.5°, i.e. for example at an angle of about 45° or 60° to the insertion direction. Example of implementation

[0058] An embodiment of the invention is shown in the drawings and is explained in more detail below. The drawings show: Fig. 1a a connector housing; Fig. 1 a populated module frame; Fig. 1c a further plug contact; Fig. 2a a mating connector housing; Fig. 2 a populated mating module frame; Fig. 2c a further mating connector; Fig. 3aden further plug contact in a magnified view; Fig. 3bden further mating plug contact in a magnified view; Fig. 4 shows the further plug contact and the further mating plug contact in the plugged-in state in a sectional view; Fig. 5a shows the plugged high-current connector system without and with a high-current plug contact pair in a first sectional view; Fig. 6a,b shows the plugged high-current connector system with and without a high-current plug contact pair in a second sectional view.

[0059] The figures contain simplified, schematic representations. In some cases, identical reference symbols are used for elements that are the same but may not be identical. Different views of the same elements may be scaled differently. Directional indications such as "left," "right," "up," and "down" are to be understood in relation to the respective figure and may vary between the individual representations compared to the object depicted.

[0060] The Fig. 1aFigure 1 shows a connector housing 10 of a connector 1, which in turn is part of a high-current connector system shown below (see Figure 1). Fig. 5a , b and Fig.6a, b The connector housing 10, which is a grommet housing, is not strictly necessary for the function of the high-current connector system, but in the version shown here it is a useful safety and protective optional component of the connector 1 and thus also of the high-current connector system. The connector housing 10 is made of plastic and has a cable outlet with a cable exit 11 on one side and a rectangular insertion opening 18 on the other, into which a plug insert 12, shown below, can be inserted and locked. In addition, the connector housing 10 has a locking lever 14 on each of its opposite narrow sides for locking it to a mating connector housing 20, shown later.

[0061] The Fig. 1b Figure 1 shows the aforementioned connector insert 12. This connector insert 12 is designed as a modular frame 120 equipped with connector modules 123. Thus, it is a modular connector insert 12. In the present version, three connector modules 123 are provided, but of course, any other number of connector modules 123 could be provided in another version.

[0062] Each of the connector modules 123 has a contact carrier 122 with two contact chambers 128. However, only one of these contact chambers 128 is visible in the drawing because the others are fitted with high-current plug contacts 121. The two outer contact carriers 122 are fully fitted, i.e., in this case with two high-current plug contacts 121. The middle contact carrier 122 is partially fitted, namely with a high-current mating contact 221, while the last contact chamber 128 remains empty for the time being to accommodate another plug contact 100. The contact chambers 128 of the contact carriers 122 are identical to each other.

[0063] The Fig. 1c and 1dFigure 1 shows the aforementioned additional plug contact 100, which is intended for insertion into the last unpopulated contact chamber 128. This plug contact can be received into the contact chamber 128 and held therein by the contact carrier 122, but differs from the aforementioned high-current plug contacts 121 in particular in that, although it has a retaining area 108, this area is solid, so that the additional plug contact 100 does not have a cable connection area.

[0064] The additional plug contact 100 also has a plug-in area designed as a contact pin 101. The contact pin 101 has a circumferential groove 106 with a plug-side retaining surface 107, which is shown in the enlarged view in Fig. 1d It is particularly easy to see and labeled.

[0065] The Fig. 2aFigure 1 shows a mating connector housing 20 of a mating connector 2, which, together with the aforementioned connector 1, is part of the high-current connector system. The mating connector housing 20, which is a grommet housing, is not strictly necessary for the function of the high-current connector system; however, in the design shown here, it is a useful safety and protective optional component of the mating connector 2 and thus of the high-current connector system. The mating connector housing 20 is made of plastic and has a cable outlet with a cable exit 21 on one side and a rectangular insertion opening 28 on the other, into which a mating connector insert 22, shown below, can be inserted and locked. Furthermore, the mating connector housing 20 has two locking pins 24 on each of its two long sides for locking with the two locking levers 14 of the connector housing 10.

[0066] The Fig. 2b Figure 1 shows the aforementioned mating connector insert 22. This mating connector insert 22 is designed as a modular frame 220 equipped with mating connector modules 223. Thus, it is a modular mating connector insert 22. In the present version, three mating connector modules 223 are provided, but of course, any other number of mating connector modules 223 could be provided in another version.

[0067] Each of the mating connector modules 223 has a mating contact carrier 222 with two mating contact chambers 228. However, only one of these mating contact chambers 228 is visible in the drawing, because the others are fitted with high-current mating contacts 221. Finally, the two outer mating contact carriers 222 are fully fitted, i.e., in this case with two high-current mating contacts 221. The middle mating contact carrier 222 is only partially fitted, namely with one high-current mating contact 221, while the last mating contact chamber 228 remains empty for the time being to accommodate another mating contact 200. The mating contact chambers 228 of the mating contact carriers 222 are identical to each other.

[0068] The Fig. 2cFigure 1 shows the aforementioned additional mating contact 200, which is intended for insertion into the still unpopulated mating contact chamber 228. This can be received in the mating contact chamber 228 and held therein by the mating contact carrier 222, but differs from the aforementioned high-current mating contacts 221 in particular in that, although it has a retaining area 208, this area is solidly constructed, so that the additional mating contact 200 does not have a cable connection area.

[0069] The additional mating contact 200 also has a plug-in area designed as a contact socket 201. The contact socket 201 has several slots 206 through which lamellae 209 with end-facing, inwardly directed locking hooks 207 (in the Fig. 3b are provided (to be seen).

[0070] The Fig. 3a The figure shows an enlarged view of the additional plug contact 100. The retaining surface 107 of the circumferential groove 106 is concealed.

[0071] The Fig. 3b The drawing shows the other mating contact 200 in an enlarged view. Through a segment-like section, at the top right of the drawing, the locking hook 207 with a sliding ramp 2072 and a locking surface 2071 inclined towards the insertion direction is clearly visible.

[0072] From the Figs. 3a and 3b It is therefore clear to the expert that the single separation force is significantly higher than the single insertion force. After all, the part slides during insertion. Fig. 3a The sliding rounding (not labelled) of the further plug contact shown on the right slides along the sliding ramp 2072 of the further mating plug contact 200 and bends its lamellae 209 apart over a part of the plugging path corresponding to the shape of the roundings.

[0073] In contrast, the portion of the pull-out path where the retaining surface 107 of the further plug contact 100, when being pulled out of the further mating contact 200, pushes the lamellae 209 of the further mating contact 200 apart via its respective detent surfaces 2071, is significantly shorter. However, the further plug contact must, according to the law of conservation of energy, exert at least the same mechanical energy over this short distance. Therefore, even disregarding frictional forces that further amplify this effect, the single disconnecting force is already considerably higher than the aforementioned single insertion force, because the single insertion force has a significantly longer path available to exert the same mechanical tension energy on the lamellae.

[0074] The Fig. 4Figure 1 shows the additional plug contact 100 and the corresponding mating plug contact 200 in a sectional view in the plugged-in state. It is easily recognizable that the locking hooks 207, with their locking surfaces 2071 inclined against the plugging direction, engage behind the retaining surface 107 of the groove 106 (not labeled here). A corresponding individual separating force would therefore have to be applied to disconnect them.

[0075] The Figs. 5a and 5b Figures 6a and 6b show a plugged high-current connector system, comprising the connector 1 and the mating connector 2 in two different sectional views, each with and without a high-current plug contact pair, consisting of the high-current plug contact 121 and the high-current mating contact 221.

[0076] In the Figs. 5a and 5b It is particularly easy to see how the lamellae 209 of the further mating contact 200 completely surround the contact pin 101 of the further plug contact 100 in the area of ​​its groove 106. In the Fig. 6a and 6bIt is easy to see how the locking hooks 207 of the lamellae 209 engage in the groove 106.

[0077] Furthermore, it is clearly evident that the contact chambers 128 are identical in design, regardless of whether a high-current plug contact 121 or another plug contact 100 is inserted into them. Likewise, it is evident that the mating contact chambers 228 are identical in design, regardless of whether a high-current mating plug contact 221 or another mating plug contact 200 is inserted into them. Reference symbol list

[0078] 1 Connector 10 Connector housing 11 Cable exit 12 Connector insert 18 Plug opening 121 High-current plug contacts 122 Contact carrier 123 Connector modules 128 Contact chambers 100 Additional plug contact 101 Plug area, contact pin 106 Groove 107 Retaining surface 108 Retaining area 2 Mating connector 20 Mating connector housing 21 Cable exit 22 Mating connector insert 28 Plug opening 221 High-current mating contacts 222 Mating contact carrier 223 Mating connector modules 228 Mating contact chambers 200 Additional mating contact 201 Plug area, contact socket 206 Slots 207 Locking hook 2071 Locking surface 2072 Sliding ramp 208 Retaining area 209 Lamellae

Claims

1. High-current connector system, comprising a connector (1) and a mating connector (2), which can be both plugged together and separated from one another by applying a total separation force, wherein the connector (1) comprises a plurality of high-current plug contacts (121) of the same type, and wherein the mating connector (2) comprises a plurality of high-current mating contacts (221) capable of being mated with the high-current plug contacts (121), wherein, in the mated state, each of the high-current mating contacts (121) is connected mechanically and electrically conductively to one of the high-current mating contacts (221) to form a high-current contact pair for the transmission of electrical energy, wherein the plug connector (1) has a further plug contact (100) and the mating plug connector (2) has a further mating plug contact (200), wherein the further plug contact (100) and the further mating plug contact (200) can be mated with one another by applying an individual mating force and, when mated, can be separated from one another again by applying an individual separation force, and are thus arranged to jointly generate a predetermined amount of the said total separation force, wherein the said individual separation force is at least 1.5 times the said individual mating force, wherein the further plug contact (100) and the further mating plug contact (200) are interlocked with one another in the mated state, wherein both the high-current plug contacts (121) and the high-current mating contacts (221) consist of one or more electrically conductive materials, in particular one or more metals, and each possess a cable connection region on the cable connection side and a high-current plug region on the plug side for mutual mechanical and electrically conductive connection when plugged together, wherein the further plug contact (100) consists of one or more electrically non-conductive materials, for example plastics, and has a plug-side plug region (101) in the form of a contact pin (101), but does not have a cable connection-side cable connection region, wherein the further mating contact (200) consists of one or more electrically nonconductive materials, for example plastics, and comprises a plug-side plug region (201) in the form of a contact socket (201), but has no cable connection-side cable connection region, wherein the contact pin (101) and the contact socket (201) are designed for mutual mechanical plug-in connection, wherein the contact socket (201) comprises plural slots (206), thereby forming lamellae (209) facing in the insertion direction, which have radially inwardly directed latching hooks (207) at their insertion-side ends, wherein the contact pin (101) facing in the insertion direction has a circumferential groove (106) which has a retaining surface (107) on the insertion side, which is aligned substantially perpendicular, i.e. at an angle of between 80° and 100°, in particular at an angle of between 85° and 95° or between 95° and 105°, and ideally at a right angle of 90°, to the insertion direction, whereby the latching hooks (207) engage behind the retaining surface (107) in the mated state, wherein the connector (1) comprises at least one contact carrier (122) formed from an electrically insulating material, and in which - or in which in total - a contact chamber (128) is arranged, respectively, for each of the said high-current plug contacts (121) and also for the said further plug contact (100), wherein the mating connector (2) comprises at least one mating contact carrier (222) made of an electrically insulating material, in which - or in which in total - a mating contact chamber (228) is arranged, respectively, for each of the said high-current mating contacts (221) and also for the said further mating contact (200), wherein the contact chambers (128) of the connector (1) are designed to be uniform with respect to one another, wherein the mating contact chambers (228) of the mating connector (2) are designed uniform with respect to one another wherein the at least one contact carrier (122) has a cable connection side and a mating side opposite the cable connection side, and the contact chambers (128) are designed as through-holes which connect the cable connection side to the mating side, wherein the at least one mating contact carrier (222) has a mating cable connection side and a mating plug side opposite the mating cable connection side, and wherein the mating contact chambers (228) are likewise designed as through-holes which connect the mating cable connection side to the mating plug side, wherein the connector (1) comprises a connector housing (10) made of plastic, having a cable outlet with a cable exit (11) and a rectangular insertion opening (18), into which a plug insert (12) comprising the contact carrier(s) (122) is inserted and locked in place, wherein the mating connector (2) comprises a mating connector housing (20) made of plastic, with a cable outlet comprising a cable exit (21) and a rectangular mating opening (28), into which a mating insert (22) comprising the mating contact carrier(s) (222) is inserted and latched, wherein the connector (1) comprises six contact chambers (128) in a 3x2 arrangement, wherein the mating connector (2) comprises six mating contact chambers (228) in a 3x2 arrangement, wherein the contact pin (101) is arranged in a row between two high-current mating contacts (121) and wherein the contact socket (201) is arranged in a row between two high-current mating contacts (221).

2. High-current connector system according to claim 1, characterised in that each high-current contact pair, when mated, is configured to transmit currents of at least 10 A ('amperes'), preferably at least up to 20 A, more preferably at least up to 40 A, and in particular at least up to 60 A, for example at least up to 80 A and, in particular, even at least up to 100 A or even more.

3. High-current plug connector system according to one of the preceding claims, characterised in that the said individual separation force is at least 75 N ("Newton"), for example at least 85 N and preferably even 97 N and in particular even more, e.g. more than 100 N and, where applicable, also 110 N and more, i.e. for example 120 N and more.

4. High-current connector system according to one of the preceding claims, characterised in that said high-current plug contacts (121) as well as said further plug contact(s) (100) are each arranged, respectively, in one of the contact chambers (128) of the connector (1) and held therein, and that said high-current mating contacts (221) and said one or more further mating contacts(200) are each arranged, respectively, in one of the mating contact chambers (228) of the mating connector (2) and are held therein.

5. High-current connector system according to claim 1, characterised in that the latching hooks (207) each have a sliding ramp (2072) and a latching surface (2071), wherein the latching surface (2071) is at an angular relationship of between 30° and 90°, preferably between 40° and 50° or between 55° and 65°, particularly preferably between 42.5° and 47.5° or 57.5° and 62.5°, i.e. for example at an angle of 45° or at an angle of 60° to the insertion direction.

6. High-current connector system according to claim 1, wherein the connector housing (10) has, on each of its opposing narrow sides, a locking bar (14) for locking with the mating connector housing (20), wherein the mating connector housing (20) has two latching pins (24) on each of its two long sides for locking with the two locking brackets (14).

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