FIXED-POLE CONTACT INSERT AND CONTACT INSERT ARRANGEMENT

Description

[0001] The invention relates to a fixed-pole contact insert for a connector, comprising a contact insert body and a plurality of contact elements arranged in the contact insert body. Furthermore, the invention relates to a contact insert arrangement for a connector, comprising a fixed-pole contact insert, wherein the fixed-pole contact insert has a contact insert body and a plurality of contact elements arranged in the contact insert body.

[0002] Numerous contact inserts for connectors in which multiple contact elements are arranged are known from the prior art. The contact inserts are generally arranged in a housing part of a connector that is designed to accommodate the contact insert. For this purpose, the contact insert body is usually connected to the housing part of the connector. The contact inserts are each used to connect to a corresponding mating contact insert, which is arranged in a housing of a mating connector.

[0003] The contact elements arranged in the contact insert body can be designed, for example, as contact pins or contact sockets, which are connected to corresponding contact elements of the mating contact insert when the contact insert is mated with a corresponding mating contact insert or the connector is mated with the corresponding mating connector. By mating, the contact elements are collectively contacted. In connectors known from the prior art, the contact elements arranged in the contact insert body are designed similarly with regard to the contacting and connection zones to ensure uniform contact.

[0004] Contact inserts can generally be divided into modular contact inserts and fixed-pole contact inserts. Modular contact inserts are typically first inserted into a retaining frame, which is then inserted into a connector housing and secured there. Because the contact inserts can be inserted individually into the retaining frame, it is possible to equip a retaining frame with different contact inserts depending on the application.

[0005] Fixed-pole contact inserts, on the other hand, are inserted directly into a housing part of a connector and secured therein, i.e., without the use of a retaining frame. Such a contact insert has a contact insert body in which several contact elements are arranged. With fixed-pole contact inserts, the number of contact elements arranged in the contact insert body cannot be changed. The present invention relates to fixed-pole contact inserts that are designed to be inserted directly into a housing part of a connector and secured therein, without the use of a retaining frame.

[0006] As a rule, the contact inserts, in particular the fixed-pole contact inserts in question, usually have at least one protective conductor and / or grounding connection in addition to the contact elements arranged in the contact insert body. Therefore, if the fixed-pole contact insert according to the invention is described as having contact elements arranged in the contact insert body, then the at least one protective conductor and / or grounding connection does not fall under these contact elements but must be considered separately from these contact elements. The holding frames of the modular contact inserts listed above also generally have at least one protective conductor and / or grounding connection.Such a holding frame for a modular contact insert must be clearly distinguished from a fixed-pole contact insert in question, which, in addition to at least one protective conductor and / or earthing connection, has further contact elements arranged in the contact insert body.

[0007] Various types of fixed-pole contact inserts are known from the prior art. These can differ, in particular, in the type and number, but also in the arrangement of the contact elements arranged in the contact insert body. However, all fixed-pole contact inserts have in common that the use of the fixed-pole contact inserts is limited and inflexible due to the contact elements being firmly integrated into the contact insert body. Document US5913703A discloses a split connector designed to reduce engagement forces and facilitate engagement detection. Document EP0590496A1 discloses a connector device for a vehicle wiring harness, which has a fixed terminal holder on an outer housing and a movable terminal holder, which is held with a front end in front of the fixed terminal holder in the insertion direction.Document EP1560298A1 discloses a split connector having a locking arm formed integrally in the main housing for holding a mating connector.

[0008] The present invention is therefore based on the object of providing a fixed-pole contact insert that can be used for a wider range of applications than conventional fixed-pole contact inserts. Furthermore, the invention is based on the object of providing a contact insert arrangement that can be flexibly configured for different areas of application.

[0009] This object is achieved by the contact insert according to the invention having the features of patent claim 1.

[0010] The fixed-pole contact insert according to the invention can thus be equipped with at least one, in particular with several, modular contact inserts. In this way, the fixed-pole contact insert can be expanded in a particularly elegant manner with further contact elements, namely the contact elements of the modular contact insert. In particular, the fixed-pole contact insert according to the invention enables easy adaptation to different areas of application and can thus be used in a variety of ways and designed flexibly. The contact insert according to the invention also enables different types of contact inserts to be flexibly combined with one another in a particularly elegant manner, namely by inserting a modular contact insert that is differently designed with regard to the type and / or arrangement of the contact elements into the at least one first receiving location.To enable easy accommodation of a modular contact insert, a preferred embodiment of the contact insert according to the invention is characterized in that the at least one receiving location has a holding frame for receiving the at least one modular contact insert. In a first variant, which is not part of the invention, the holding frame is designed as a separate component. The holding frame is then arranged in the receiving location and connected to the contact insert body. The connection between the holding frame and the contact insert body can be realized, for example, by a screw connection or a snap-in connection.

[0011] In order to fix the at least one modular contact insert in the holding frame, the holding frame, in a preferred embodiment, has at least one spring element designed to fix the modular contact insert. The spring element preferably transitions to a preloaded state, at least briefly, upon insertion of the modular contact insert. When the modular contact insert is arranged in its final position in the receiving location, the at least one spring element is preferably in a state with at least a reduced preload compared to the state in which the maximum preload is achieved. Particularly preferably, the at least one spring element is then in a relaxed state.

[0012] To secure the at least one modular contact insert in the holding frame, the spring element preferably has at least one locking element. The locking element is preferably designed as a locking lug or a locking projection. A modular contact insert intended for insertion into the receiving space then preferably has a locking recess into which the at least one locking element engages when the modular contact insert is inserted.

[0013] Particularly preferably, the holding frame has at least one second spring element for securing a modular contact insert. Particularly preferably, the holding frame has at least a first end face and a second end face opposite the first end face, as well as a first longitudinal side and a second longitudinal side opposite the first longitudinal side. Furthermore, the two spring elements are arranged on opposite sides of the holding frame, i.e., on the opposite end faces or on the opposite longitudinal sides.

[0014] The design with a retaining frame formed as a separate component, which is connected to the contact insert body, offers the advantage that various types of retaining frames can be incorporated into the contact insert body. Furthermore, the retaining frame is replaceable, so that, for example, in the event of damage to the retaining frame, only the retaining frame itself can be replaced.

[0015] In order to reduce the effort associated with mounting the retaining frame in the receiving location, in a particularly preferred embodiment of the fixed-pole contact insert according to the invention, the retaining frame is at least partially formed in the contact insert body. The retaining frame is thus at least partially formed integrally with the contact insert body, i.e., formed in the contact insert body in the region of the receiving location.

[0016] According to the invention, the holding frame formed in the receiving space has at least one spring element for securing the at least one modular contact insert in the receiving space. According to the invention, the at least one spring element is formed integrally with the contact insert body. The spring element preferably transitions to a preloaded state, at least briefly, upon insertion of the modular contact insert.

[0017] When the modular contact insert is arranged in its final position in the receiving space, the at least one spring element is preferably in a state with at least a reduced preload compared to the state in which the maximum preload is reached. Particularly preferably, the at least one spring element is then in a relaxed state.

[0018] To secure the at least one modular contact insert in the holding frame formed in the receiving space, the spring element preferably has at least one locking element, particularly preferably a locking lug or a locking projection. A modular contact insert then preferably has a locking recess into which the at least one locking element engages when the modular contact insert is inserted.

[0019] According to the invention, the retaining frame is completely formed within the contact insert body. Therefore, no additional, separate fixing means are required to secure the modular contact insert.

[0020] In one embodiment, the holding frame formed in the contact insert body in the region of the receiving location has at least one second spring element for securing a modular contact insert. Particularly preferably, the holding frame has at least a first end face and a second end face opposite the first end face, as well as a first longitudinal side and a second longitudinal side opposite the first longitudinal side. Furthermore, the two spring elements are formed on opposite sides of the holding frame, i.e., on the opposite end faces or on the opposite longitudinal sides.

[0021] The contact insert body of the fixed-pole contact insert can be implemented in various ways according to the invention. In a first variant, the contact insert body is made of an electrically insulating material. Particularly preferably, the contact insert body is made of a plastic. This enables, for example, the production of the contact insert body by means of an injection molding process. The use of an electrically insulating material for the contact insert body has the advantage that the contact elements of the contact insert body are electrically insulated from one another and that electrical insulation from a modular contact insert that can be accommodated in the receiving space is also ensured.If the contact insert has a protective conductor connection and / or a grounding connection, in a particularly preferred embodiment, at least one electrical contacting element for electrically contacting a modular contact insert that can be accommodated in the receiving space is arranged between the protective conductor connection and / or grounding connection and the receiving space. If a modular contact insert is arranged in the receiving space, it is contacted by the electrical contacting element.

[0022] In an alternative variant, which is not part of the invention, the contact insert body is made of an electrically conductive material. Particularly preferably, the contact insert body is made of a metal. An electrical connection between a modular contact insert that can be accommodated in the receiving space and a protective conductor connection and / or a ground connection of the contact insert is then established via the electrically conductive contact insert body.

[0023] In a further variant, which is not part of the invention, the contact insert body is made at least partially from an electrically insulating material, for example a plastic, and from an electrically conductive material, for example a metal.

[0024] According to the invention, various configurations are available for arranging the receiving location for the at least one modular contact insert within the contact insert body. Particularly preferably, the contact elements of the fixed-pole contact insert are arranged at least partially in a contact element region. Further preferably, the contact element region of the fixed-pole contact insert has a contact element region longitudinal axis. In the case of fixed-pole contact inserts known in practice, the contact element region longitudinal axis is generally parallel to a long side of the contact insert, or the contact element region longitudinal axis is parallel to an end face of the contact insert.

[0025] According to the invention, the at least one receiving location has a receiving location longitudinal axis. The receiving location is preferably dimensioned such that it has a greater extension in the direction of the receiving location longitudinal axis than in a direction perpendicular to the receiving location longitudinal axis. In one embodiment, the extension of the receiving location in the direction of the receiving location longitudinal axis corresponds to the extension of the receiving location in a direction perpendicular to the receiving location longitudinal axis. The receiving location is then essentially square. According to the invention, in one variant, it is provided that the contact element region longitudinal axis and the receiving location longitudinal axis run parallel to one another. In an alternative variant, it is provided that the contact region longitudinal axis and the receiving location longitudinal axis run perpendicular to one another.

[0026] By means of these inventive alignments of the receiving location to the contact elements - or at least to some of them - arranged in the contact insert body, a space-saving and clear assembly of the fixed-pole contact insert with at least one modular contact insert is possible.

[0027] Particularly preferably, the contact insert body has two opposing end faces and two opposing longitudinal sides. Further preferably, the at least one receiving location is formed on an end face of the contact insert body. Particularly preferably, the receiving location longitudinal axis is parallel to an end face plane spanned by the at least one end face. In another embodiment, the receiving location longitudinal axis is perpendicular to the end face plane spanned by the at least one end face.

[0028] In an alternative embodiment, the at least one receiving location is formed on a longitudinal side of the contact insert body. Particularly preferably, the receiving location longitudinal axis is parallel to a longitudinal side plane spanned by the at least one longitudinal side. In another embodiment, the receiving location longitudinal axis is perpendicular to the longitudinal side plane spanned by the at least one longitudinal side.

[0029] In a further preferred embodiment, the contact elements of the fixed-pole contact insert are arranged in at least two contact element regions. Further preferably, the contact element regions of the fixed-pole contact insert each have a contact element region longitudinal axis. Further preferably, the first contact element region longitudinal axis is aligned parallel to the second contact element region longitudinal axis or is perpendicular to the second contact element region longitudinal axis. The contact elements in the first contact element region are designed to be similar to or different from the contact elements in the second contact element region.

[0030] Particularly preferably, the at least one receiving location for the modular contact insert is formed between the first contact element region and the second contact element region.

[0031] In the embodiments described so far, it has been stated that the receiving location is designed to receive at least one modular contact insert. In a particularly preferred variant of the fixed-pole contact insert according to the invention, the at least one first receiving location is designed to receive a plurality of modular contact inserts. Particularly preferably, the plurality of modular contact inserts can be arranged directly adjacent to one another in the receiving location. Further preferably, the plurality of modular contact inserts can be fixed in the receiving location independently of one another, for example by means of the previously described spring elements, so that the plurality of modular contact inserts can be individually inserted into or removed from the receiving location.

[0032] A particularly preferred embodiment of the fixed-pole contact insert according to the invention, which further increases the modularity of the contact insert, is characterized in that the contact insert body has at least one second receiving location for receiving at least one further modular contact insert. Thus, at least two modular contact inserts can be inserted into different receiving locations in the fixed-pole contact insert. Particularly preferably, the at least second receiving location is designed according to at least one of the embodiments previously described in connection with the first receiving location.

[0033] In one embodiment, the first and second receiving locations are identical. In another embodiment, the first and second receiving locations are designed differently. If the first and second receiving locations are designed differently, in one variant, the two receiving locations are designed to accommodate different types of modular contact inserts.

[0034] The first receiving location preferably has a first receiving location longitudinal axis, and the second receiving location preferably has a second receiving location longitudinal axis. In a very special embodiment, the first receiving location longitudinal axis and the second receiving location longitudinal axis run parallel to each other. In one variant, the first receiving location longitudinal axis and the second receiving location longitudinal axis are identical, so that the first receiving location and the second receiving location are arranged along a common receiving location longitudinal axis.

[0035] In an alternative variant, the first longitudinal axis of the receiving location and the second longitudinal axis of the receiving location are perpendicular to each other.

[0036] If the contact insert body has a first end face and a second end face opposite the first end face, as well as a first longitudinal side and a second longitudinal side opposite the first longitudinal side, then in a particularly preferred embodiment the first receiving location is formed on the first end face and the second receiving location is formed on the second end face. In an alternative variant, both the first receiving location and the second receiving location are formed on the first end face. The receiving location longitudinal axes can then, for example, lie parallel to an end face plane spanned by the first end face or be perpendicular to an end face plane spanned by the first end face.

[0037] In a further variant, the first receiving location and the second receiving location are formed on a first longitudinal side of the contact insert body. Particularly preferably, the receiving location longitudinal axes are then parallel to a longitudinal side plane spanned by the first longitudinal side or are parallel to the longitudinal side plane spanned by the first longitudinal side. Likewise, one embodiment provides for the first receiving location to be formed on the first longitudinal side and the second receiving location to be formed on the second longitudinal side.

[0038] In a further alternative, the first receiving location is formed on a front side and the second receiving location is formed on a long side.

[0039] In addition to the fixed-pole contact insert, the invention also relates to a contact insert assembly for a plug-in connector. The contact insert assembly comprises a fixed-pole contact insert, wherein the fixed-pole contact insert has a contact insert body and a plurality of contact elements arranged in the contact insert body. In the contact insert assembly according to the invention, the object underlying the invention is achieved in that the contact insert body has at least one first receiving location for receiving at least one modular contact insert, and in that at least one modular contact insert is arranged in the receiving location of the contact insert body of the fixed-pole contact insert.

[0040] Particularly preferred embodiments of the contact insert assembly according to the invention are characterized in that the fixed-pole contact insert is implemented according to at least one of the embodiments previously described in connection with the fixed-pole contact insert according to the invention. Accordingly, all the above statements, with their advantages regarding the implementation of the fixed-pole contact insert according to the invention, are transferable to the contact insert assembly according to the invention and apply accordingly to the contact insert assembly according to the invention.

[0041] The modular contact insert of the contact insert assembly according to the invention can be designed in a manner known from the prior art. Accordingly, the modular contact insert of the contact insert assembly according to the invention can be implemented, for example, as a single module, double module, or half module, or in another known manner.

[0042] A particular embodiment of the contact insert assembly according to the invention is characterized in that at least one second modular contact insert is provided. In one variant, the at least second modular contact insert is also arranged in the at least one first receiving location, and in an alternative variant, in which the contact insert body has at least one second receiving location, it is arranged in the second receiving location.

[0043] A further development is characterized in that, in one variant, the at least first modular contact insert and the at least second modular contact insert are designed identically. In an alternative variant, the first modular contact insert and the second modular contact insert are designed differently from one another.

[0044] In detail, there are several possibilities for designing and developing the fixed-pole contact insert and the contact insert assembly according to the invention. Reference is made to the dependent claims and the following description of preferred embodiments in conjunction with the drawings. The drawings show: Fig. 1 shows a representation of a first embodiment of a fixed-pole contact insert, Fig. 2 shows a schematic representation of a second variant, which is not part of the invention, of a fixed-pole contact insert, Fig. 3 shows a schematic representation of a third embodiment of a fixed-pole contact insert, Fig. 4 shows a schematic representation of a first contact insert arrangement with a fixed-pole contact insert according to a fourth embodiment and two modular contact inserts, Fig. 5 shows a schematic representation of a fifth embodiment of a fixed-pole contact insert, Fig. 6 shows a schematic representation of a sixth embodiment of a fixed-pole contact insert, Fig. 7 shows a representation of a second contact insert arrangement with a fixed-pole contact insert according to the Fig. 1 illustrated embodiment and a modular contact insert, Fig. 8 a representation of a seventh embodiment of a fixed-pole contact insert, Fig. 9 a representation of an eighth embodiment of a fixed-pole contact insert and Fig. 10 a representation of a ninth variant, which is not part of the invention, of a fixed-pole contact insert.

[0045] Fig. 1 shows a representation of a fixed-pole contact insert 1 for a connector (not shown). The fixed-pole contact insert 1 has a contact insert body 2 in which several contact elements 3 are arranged. In this case, the contact elements 3 are designed as contact sockets 4. The fixed-pole contact insert 1 has a receiving location 5 for receiving a modular contact insert 6. In order to be able to arrange and fix the modular contact insert 6 in the receiving location 5 in a particularly advantageous manner, the receiving location 5 has a holding frame 7 for receiving the modular contact insert 6.

[0046] In Fig. 2 a variant which is not part of the invention is shown in which the holding frame 7 is designed as a separate component 8. In the embodiment shown, the holding frame 7 designed as a separate component 8 is connected to the contact insert body 2 via additional connecting elements 9 in the receiving space 5. For this purpose, a total of four connecting elements 9 are provided which fix the holding frame 7. The holding frame 7, 8 has two spring elements 10 for fixing the modular contact insert 6. The spring elements 10 are arranged on opposite end faces 11, 12 of the receiving space 5 and the holding frame 7, 8 respectively.

[0047] In contrast to the Fig. 2 The variant shown, which is not part of the invention, is in the Fig. 1 In the embodiment shown, the holding frame 7 is formed in the contact insert body 2, namely formed from the contact insert body 2. The holding frame 7 also has two spring elements 10 for fixing a modular contact insert 6, which are correspondingly formed integrally with the contact insert body 2. For fixing the modular contact insert body 6, the spring elements 10 have locking elements 13, which engage in corresponding locking recesses formed on the modular contact insert 6.

[0048] The contact insert body 2 of the Fig. 1 The fixed-pole contact insert 1 shown is made of an electrically insulating material, namely a plastic. The contact insert 1 also has a protective conductor connection 14, which is electrically connected to the receiving location 5 via at least one electrical contacting element, in order to establish an electrical connection to a modular contact insert that can be accommodated in the receiving location 5.

[0049] The contact insert body 2 of the Fig. 2 The fixed-pole contact insert shown is made of an electrically conductive material, namely, in this case, a metal. The electrical connection between the protective conductor terminal 14 and a modular contact insert 6 arranged in the receiving space 5 is then made via the electrically conductive contact insert body 2. The contact elements 3 are shown in Fig. 2 designed as contact pins 15.

[0050] The contact elements 3 are arranged in a contact element area 16. The contact element area 16 has a contact element area longitudinal axis 17. In addition, the receiving location 5 has a receiving location longitudinal axis 18. In the Fig. 1 und Fig. 2 In the embodiments shown, the contact element area longitudinal axis 17 and the receiving location longitudinal axis 18 are perpendicular to one another.

[0051] An alternative design is extremely schematic in Fig. 3 Here, the contact element area longitudinal axis 17 and the receiving location longitudinal axis 18 run parallel to each other.

[0052] The contact insert bodies 2 shown each have a first end face 19 and a second end face 20 as well as a first longitudinal side 21 and a second longitudinal side 22. In the Fig. 2 In the embodiment shown, the receiving location 5 is formed on the first end face 19 of the contact insert body 2. In addition, the receiving location 5 is realized in such a way that the receiving location longitudinal axis 18 runs parallel to an end face plane 23 spanned by the first end face 19. The end face plane 23 is in Fig. 2 perpendicular to the plane of the paper. In the Fig. 3 In the embodiment shown, the receiving location 5 is formed on the second longitudinal side 22 of the contact insert body 2. In addition, the receiving location 5 is realized in such a way that the receiving location longitudinal axis 18 runs parallel to a longitudinal side plane 24 spanned by the second longitudinal side 22. The longitudinal side plane 24 is in Fig. 3 perpendicular to the plane of the paper.

[0053] In Fig. 4 The receiving location 5 is designed to accommodate two modular contact inserts 6. In the area of ​​the receiving location 5, a holding frame 7 is formed in the contact insert body 2, which holding frame is designed to accommodate two modular contact inserts 6. In the illustrated embodiment, the holding frame 7 has four spring elements 10, with two spring elements 10 each serving to hold a modular contact insert 6. The two modular contact inserts 6, 6' are designed differently. It is therefore easily possible to arrange various modular contact inserts in the receiving location 5, whereby the contact insert arrangement 27 can be designed flexibly.

[0054] Fig. 5 shows a representation of a fixed-pole contact insert 1, which, in addition to the first receiving location 5 for receiving a modular contact insert 6, has a second receiving location 25 for receiving a further modular contact insert 6'. The second receiving location 25 has a second receiving location longitudinal axis 26, which runs parallel to the receiving location longitudinal axis 18 of the first receiving location 25. The first receiving location 5 is formed on the first end face 19 of the contact insert body 2, whereas the second receiving location 25 is formed on the second end face 20 of the contact insert body 2.

[0055] Also the Fig. 6 The fixed-pole contact insert 1 shown has two receiving locations 5, 25 for receiving at least two modular contact inserts 6, 6'. In contrast to the Fig. 5 In the embodiment shown, the longitudinal axes 18, 26 of the two receiving locations 5, 25 are parallel to each other, namely, they coincide in this embodiment. The two receiving locations 5, 25 are also arranged on the second longitudinal side 22 of the contact insert body 2.

[0056] In the Fig. 6 and 7 Contact insert arrangements 27 are shown, which in addition to a fixed-pole contact insert 1 also have at least one modular contact insert 6. The fixed-pole contact insert 1 has a contact insert body 2 and several contact elements 3 arranged in the contact insert body 2. In addition, the contact insert body 2 has a first receiving location 5 for receiving the at least one modular contact insert 6, which is arranged in the receiving location 5 of the contact insert body 2. In the Fig. 7 In the embodiment shown, a modular contact insert 6 is arranged in the receiving space 5, in the Fig. 6 In the embodiment shown, two modular contact inserts 6, 6' are arranged in the receiving space 5. The two modular contact inserts 6, 6' are of identical design.

[0057] Fig. 8 shows a further embodiment of a fixed-pole contact insert 1. The fixed-pole contact insert 1 has a receiving location 5 which is designed to receive two modular contact inserts 6, 6'. For this purpose, the receiving location 5 has a holding frame 7 formed in the contact insert body 2, which has a total of four spring elements 10. In contrast to the Fig. 4 In the embodiment shown, the holding frame 7 is formed rotated by 90° in the receiving location 5. The receiving location longitudinal axis 18 and the contact element area longitudinal axis 19 are parallel to each other in the embodiment shown, namely, they coincide. In addition, in Fig. 8 an electrical contacting element 28 for the electrical connection between the protective conductor connection and the modular contact elements 6, 6' that can be arranged in the receiving space 5 is designed in the form of a contact frame.

[0058] An alternative design of a fixed-pole contact insert 1 is shown in Fig. 9 shown. The fixed-pole contact insert 1 shown here has a first receiving location 5 for receiving a first modular contact insert 6 and a second receiving location 25 for receiving a second modular contact insert 6'. The first receiving location 5 and the second receiving location 25 are designed differently from one another and serve to receive different modular contact inserts 6, 6'. In the illustration, a second modular contact insert 6' is arranged in the second receiving location 25, whereas no modular contact insert 6 is arranged in the first receiving location 5. The receiving location 25 has a round cross-section and receives a modular contact insert 6' which also has a round cross-sectional area. The first receiving location 5, in contrast to the second receiving location 25, has a rectangular cross-section.The first receiving location 5 is formed on the second end face 20 of the fixed-pole contact insert 1, and the second receiving location 25 is formed on the first end face 19 of the fixed-pole contact insert 1. The contact elements 3 arranged in the contact insert body 2 are arranged in a contact element region 16 formed centrally between the first receiving location 5 and the second receiving location 25.

[0059] In Fig. 10 1 shows a fixed-pole contact insert 1 having a receiving location 5 formed centrally in the contact insert body 2. The fixed-pole contact insert 1 has a first contact element region 16 and a second contact element region 29. The contact elements 3 of the fixed-pole contact insert 1 are arranged in both contact element regions 16, 29, and the receiving location 5 is arranged between the first contact element region 16 and the second contact element region 29. As can be seen from the Fig. 10As can be seen, the receiving location 5 is designed to accommodate two modular contact inserts. To secure the contact inserts in the receiving location 5, the fixed-pole contact insert 1 has a total of four separately formed spring elements 10, which are attached to the contact insert body 2. The spring elements 10 are made of metal in this case. Two oppositely arranged spring elements 10 each secure a modular contact insert. Reference symbol

[0060] 1 fixed-pole contact insert 2 contact insert body 3 contact elements 4 contact sockets 5 first receiving location 6 modular contact insert 6 second modular contact insert 7 holding frame 8 holding frame designed as a separate component 9 connecting elements 10 spring element 11 first end face of the receiving location 12 second end face of the receiving location 13 locking elements 14 protective conductor connection 15 contact pins 16 first contact element area 17 contact element area longitudinal axis 18 receiving location longitudinal axis 19 first end face of the contact insert body 20 second end face of the contact insert body 21 first longitudinal side of the contact insert body 22 second longitudinal side of the contact insert body 23 end face plane 24 longitudinal side plane 25 second receiving location 26 second receiving location longitudinal axis 27 contact insert arrangement 28 electrical contacting element 29 second contact element area

Claims

1. Fixed-pole contact insert (1) for a plug connector, having a contact insert body (2) and having a plurality of contact elements (3) disposed in the contact insert body (2), wherein the contact insert body (2) has at least one first receptacle space (5) for receiving at least one modular contact insert (6), wherein the at least one receptacle space (5) has a holding frame (7) for receiving the at least one modular contact insert (6), wherein the holding frame (7) is completely formed in the contact insert body (2), wherein the holding frame (7) has at least one spring element (10) for fixing the at least one modular contact insert (6) in the receptacle space (5), and wherein the at least one spring element (10) is integrally formed with the contact insert body (2), characterized in that the spring element (10) is formed by slots which are incorporated into a wall of the contact insert body and laterally delimit the spring element (10).

2. Contact insert (1) according to Claim 1, characterized in that that the contact insert body (2) is made of an electrically insulating material, in particular in that the contact insert (1) has a protective conductor and / or ground connection (14), and in that at least one electrical contacting element (28) for electrically contacting the modular contact insert (6) is disposed between the protective conductor and / or ground connection (14) and the receptacle space (5).

3. Contact insert (1) according to one of Claims 1 to 2, characterized in that the contact elements (3) of the fixed-pole contact insert (1) are disposed at least partially in a contact element region (16), in that the contact element region (16) has a contact element region longitudinal axis (17), in that the at least one receptacle space (5) has a receptacle space longitudinal axis (18) and that the contact element region longitudinal axis (17) and the receptacle space longitudinal axis (18) are parallel to one another, or in that the contact region longitudinal axis (17) and the receptacle space longitudinal axis (18) are perpendicular to one another.

4. Contact insert (1) according to one of Claims 1 to 3, characterized in that the contact insert body (2) has two opposite end sides (19, 20) and two opposite longitudinal sides (21, 22), and in that the receptacle space (5) is formed on an end side (19, 20) of the contact insert body (2), or in that the receptacle space (5) is formed on a longitudinal side (21, 22) of the contact insert body (2).

5. Contact insert (1) according to one of Claims 1 to 4, characterized in that the at least one first receptacle space (5) is designed for receiving a plurality of modular contact inserts (6, 6').

6. Contact insert (1) according to one of Claims 1 to 5, characterized in that the contact insert body (2) has at least one second receptacle space (25) for receiving at least one further modular contact insert (6').

7. Contact insert (1) according to Claim 6, wherein the first receptacle space (5) has a first receptacle space longitudinal axis (18) and the second receptacle space (25) has a second receptacle space longitudinal axis (26), characterized in that the first receptacle space longitudinal axis (25) and the second receptacle space longitudinal axis (26) are parallel to one another, in particular that the first receptacle space longitudinal axis (25) and the second receptacle space longitudinal axis (26) are identical, so that the first receptacle space (5) and the second receptacle space (25) are disposed along a common receptacle space longitudinal axis, or in that the first receptacle space longitudinal axis (18) and the second receptacle space longitudinal axis (26) are perpendicular to one another.

8. Contact insert (1) according to Claim 6 or 7, characterized in that the contact insert body (2) has two opposite end sides (19, 20) and two opposite longitudinal sides (21, 22), and in that the first receptacle space (5) and the second receptacle space (25) are formed on the same end side (19, 20) or longitudinal side (21, 22), or are formed on different end sides (19, 20) and / or different longitudinal sides (21, 22).

9. Contact insert assembly (27) for a plug connector, having a fixed-pole contact insert (1) according to Claim 1, wherein at least one modular contact insert (6) is disposed in the receptacle space (5) of the contact insert body (2) of the fixed-pole contact insert (1).

10. Contact insert assembly (27) according to Claim 9, characterized in that the fixed-pole contact insert (1) is furthermore designed according to at least one of Claims 2 to 8.

11. Contact insert assembly (27) according to Claim 9 or 10, characterized in that at least one second modular contact insert (6') is disposed in the at least one first receptacle space (5) or - if the contact insert body (2) has at least one second receptacle space (25) - is disposed in the second receptacle space (25), and in that the at least second modular contact insert (6') and the first modular contact insert (6) are identical or differ from one another.