CN212695362U

CN212695362U - Holding frame and plug connector with such a holding frame

Info

Publication number: CN212695362U
Application number: CN202020798576.8U
Authority: CN
Inventors: 卢卡斯·霍佩; 托尔斯滕·迪塞尔; 布鲁诺·穆特
Original assignee: Phoenix Contact GmbH and Co KG
Current assignee: Phoenix Contact GmbH and Co KG
Priority date: 2019-05-14
Filing date: 2020-05-14
Publication date: 2021-03-12
Anticipated expiration: 2030-05-14
Also published as: DE202020102621U1; CN111952759A; CN111952759B; DE102019112612B3

Abstract

The subject matter of the invention is a holding frame for a plug connector for receiving a contact insert, having a base frame having a first side wall, a second side wall opposite the first side wall, a first end wall and a second end wall opposite the first end wall, wherein the first side wall, the second side wall, the first end wall and the second end wall enclose an interior space of the base frame, into which interior space a contact insert can be inserted along an insertion direction, and a plurality of wall sections having an inner surface pointing in the direction of the interior space and an outer surface pointing away from the interior space and, in a fixed position, retaining the contact insert inserted into the interior space of the base frame at the base frame, wherein openings are formed at the first side wall and at the second side wall, wherein one of the plurality of wall sections is supported in each opening in a pivotably movable manner, to be transferred into the fixed position and into the open position.

Description

Holding frame and plug connector with such a holding frame

Technical Field

The invention relates to a holding frame for a plug connector for receiving a plurality of contact inserts. The invention also relates to a plug connector having such a retaining frame.

Background

Such a holding frame serves for the modular use of the contact insert, for example, at a plug connector. One or more contact inserts can be arranged on such a holding frame for insertion together with the holding frame into a housing of a plug connector component or a plug connector and for connection to the housing by the holding frame. In this way, the contact inserts can be combined with one another in a modular manner and arranged in or at the plug connector part by means of the retaining frame.

Such a contact insert may have, for example, one or more electrical contacts. In this case, the contact inserts are connected on the one hand to the wires leading to the plug connector and on the other hand form plug contacts, by means of which the plug connector can be brought into an inserted engagement with the mating plug connector part for electrical contact.

Such a modular contact insert offers the advantage of a flexible assemblability and thus a variable usability of the plug connector.

If the contact insert is inserted into the holding frame, it is necessary to hold the contact insert at the holding frame in order to be able to mount the holding frame together with the contact insert, for example, at the plug connector. In the holding frame known from DE 102012110907 a1, for this purpose, a second holding frame part can be mounted on the first holding frame part, which has a recess for receiving the projecting element of the contact insert, in order in this way to lock the projecting element inserted into the recess and thus to lock it on the holding frame.

In the holding frame known from DE 202012103360U 1, two kinds of recesses are provided on the frame wall. The projecting elements of the contact insert can be inserted in an embedded manner into a first recess of the upper edge of the frame wall, while the pin-shaped profile of the contact insert can be snap-locked (rastend) with a second recess in the form of an opening.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a holding frame, it can realize the simple insertion of contact insert in holding frame department and the reliable locking of contact insert in holding frame department, realizes the simple detachability of contact insert from holding frame simultaneously.

The holding frame according to the invention is characterized in that it comprises a base frame having a first side wall, a second side wall opposite the first side wall, a first end wall and a second end wall opposite the first end wall, wherein the first side wall, the second side wall, the first end wall and the second end wall enclose an interior space of the base frame, into which interior space the contact insert can be inserted in the insertion direction, and is characterized by a plurality of wall sections having inner surfaces directed in the direction of the interior space and outer surfaces directed away from the interior space, and in the fixing position, the plurality of wall sections hold the contact insert inserted into the interior space of the base frame at the base frame, wherein openings are formed in the first side wall and the second side wall, wherein in each opening one of the wall sections is mounted in a pivotable manner in each case for the purpose of being transferred into the fastening position and into the open position.

According to the invention, it is now provided that the wall section, by means of which the contact insert can be fixed on the base frame and thus on the holding frame, is no longer arranged fixedly on the base frame but is arranged movably relative to the base frame, so that the wall section can be pivoted or tilted relative to the base frame into a fixed position and into an open position. In the secured position, the wall sections are preferably arranged in alignment with the respective side walls of the base frame in which they are located. In the fixed position, the contact insert inserted into the interior space can be held in the fixed position at the wall section in such a way that the projecting elements of the contact insert can engage in recesses formed on the wall section. When the wall sections are transitioned from the secured position to the open position, the wall sections pivot in a direction away from the interior space such that the wall sections are inclined outwardly from the plane of the respective side wall in the open position. For example, in the open position, the wall sections may be inclined from the plane of the respective side wall at an angle of between 3 ° and 15 °, preferably at an angle of between 5 ° and 10 °. By pivoting or tilting the wall sections outward when switching into the open position, the insertion region for the contact insert in the open position is enlarged or widened in the interior of the base frame, so that the contact insert can be inserted into the interior without hindrance. In the open position of the wall section, the contact insert can also be easily released and removed from the interior of the base frame, since the wall section can for this purpose be pivoted or tilted away from the contact insert again. The pivotably movable support of the wall sections can be configured such that each wall section can be pivoted individually. However, it is also possible for two or more wall sections arranged on one side wall to be connected or coupled to one another in such a way that they can pivot together. In the case of a possible individual pivoting movement of the wall sections, the individual contact inserts can be inserted into the holding frame individually, independently of the other contact inserts, and can also be removed from the holding frame again.

By the wall section being mounted on the base frame in a pivotably movable manner, the wall section can now preferably be made of a dimensionally stable material. Shape-stable means that the wall section itself is not deformable, and therefore its shape remains and does not change in every position. The wall section is preferably rigidly constructed. The wall section therefore preferably has no spring action or spring elasticity.

The base frame and the wall section may be constructed from the same material. The base frame is preferably made of a rigid, dimensionally stable material, so that the wall sections can also be made of a rigid, dimensionally stable material. If the base frame and the wall section are made of the same material, the compatibility and the handling during the assembly of the wall section at the base frame can be improved. Furthermore, the production effort can be reduced if the base frame and the wall sections are made of the same material.

Preferably, the wall sections are constructed from a diecast material. By being constructed from a diecast material, the wall section can have a particularly smooth, edgeless, clean surface. In addition, a particularly small wall thickness can be achieved when using diecasting material. As the die casting material, for example, an aluminum die casting material or a zinc die casting material can be used. If the base frame is constructed from the same material as the wall sections, the base frame can also be constructed from a diecast material.

In order to form a pivotably movable mounting of the wall section, the wall section is preferably mounted pivotably movable on a rotational axis in an opening at the base frame or at a side wall of the base frame. The axis of rotation about which the wall section can pivot or tilt is preferably arranged or configured eccentrically to the wall section. Preferably, the rotational axis is arranged or configured on a lower end of the wall section. In the assembled state of the wall section, the lower end of the wall section is arranged closer to the lower edge of the base frame than the upper end of the wall section. The upper end of the wall section is preferably arranged adjacent to the upper edge of the base frame. In the upper region of the wall section, a recess is preferably formed in each case, in which recess the projecting elements of the contact insert inserted into the interior can be held in each case in the fixing position. The rotary shaft may be designed as a shaft body, which may be connected to the wall section and the base frame as a separate component. Furthermore, the rotary shaft can also be formed by a rotary pin which is formed integrally at the wall section, wherein the rotary pin can be inserted into recesses formed on the base frame and can be rotatably supported in these recesses.

Preferably, it can be provided that each wall section has its own axis of rotation. If each wall section has its own axis of rotation, each wall section can be transferred into the fixing position and the open position individually and therefore individually, without adjacently arranged wall sections also being transferred together into the respective position. The contact inserts can therefore also be inserted and fixed individually in the holding frame or can be detached therefrom.

Furthermore, it is also possible, however, for two or more wall sections arranged on the first side wall and/or the second side wall to be mounted in a pivotable manner on a common rotational axis in an opening of the base frame or of a side wall of the base frame. The rotational shaft is preferably designed in the form of a shaft body, which can extend through two or more wall sections. The connection of two or more wall sections of the side wall can then be realized by means of the rotational axis, so that the wall sections do not have to be transferred individually into the fixed position and into the open position, but rather the two or more wall sections can be transferred simultaneously into the fixed position and into the open position by actuating only one of the wall sections.

In order to be able to facilitate the insertion of the contact insert into the interior and thus into the region between two opposing wall sections, the wall sections may each have an insertion bevel on their inner surface. The insertion ramp is preferably formed on the upper end of the wall section. Preferably, the insertion ramp is formed in the insertion direction above a corresponding recess formed in the wall section.

In order to hold the wall sections in a fixed position, the wall sections can each have a fastening region, which can interact in each case in the fixed position with a mating fastening region formed on the base frame. The fastening region of the wall section is preferably formed at the upper end of the wall section. The fastening region can be designed as a latching region and have the shape of a latching nose, for example. The mating fastening region can be designed as a mating latching region and have the shape of a rear joint, for example, wherein the latching nose can then be hooked back (hingerhaken) or latched back (hingerrasten) at the rear joint in the fastening position.

In addition or alternatively to the fastening region and the counter-fastening region, at least one retaining device may be fastened to the base frame in order to retain the wall sections in the fastening position, which retaining device may at least partially surround one or more of the wall sections in the fastening position. The holding device is preferably an additional or separate component which can be fixed to the base frame after the insertion and positioning of the contact insert in the holding frame. The retaining device is preferably designed such that it can surround not only a partial region of the base frame but also a partial region of one or more wall sections, so that the individual wall sections can be held in a fixed position relative to the base frame by means of the retaining device.

For example, the at least one retaining device can be designed in the form of a fixed rail which can be fitted or pushed onto the edge section of the base frame in such a way that, in the fixed position, the retaining device can at least partially surround the edge section of the base frame and the edge section of the one or more wall sections. The edge section of the base frame, onto which the holding device can be pushed, is preferably formed on an upper edge of the base frame. The retaining device in the form of a fixed rail preferably has a C-shaped or U-shaped cross section, so that the wall section in the fixing position of the base frame and also arranged in the fixing position can be enclosed in a C-or U-shape. The holding device configured as a fixed rail is preferably straight and elongate. Preferably, two retaining devices can be provided, wherein a first retaining device in the form of a fixed rail can be arranged at a first side wall of the base frame and a second retaining device in the form of a fixed rail can be arranged at a second side wall of the base frame.

It is furthermore possible that the at least one holding device is designed as a tensioning element, which in the fastening position can surround the base frame at an outer surface facing away from the interior space and the wall section at an outer surface thereof. If the wall section is arranged in a fixed position after the insertion of the contact insert, the holding device configured as a tensioning element can be arranged at the base frame. It is also possible, however, for the holding device in the form of a tensioning element to be already mounted on the base frame before the insertion of the contact insert. The retaining device, which is designed as a tensioning element, preferably surrounds the base frame over its entire circumference or over its entire outer circumference, so that all wall sections arranged on the base frame can be surrounded together by the retaining device. If the retaining device is fitted on the base frame before the insertion of the contact insert, the retaining device can provide a spring action by means of which the retaining device can exert an automatic restoring action on the wall section when the wall section is in the open position, whereby the wall section can be automatically pivoted back from the open position to the fixing position.

The tensioning element can be, for example, an elastically constructed polymer element or a metal spring element. The tensioning element therefore preferably has a spring action or a spring action, as a result of which the assembly of the tensioning element at the base frame and at the wall section can be facilitated. If the tensioning element is a polymer element of elastic construction, it can be constructed, for example, like a rubber band. The polymer element may for example be composed of a rubber material or a plastic material. If the tensioning element is a metal spring element, it can be constructed, for example, in the form of a spring ring, for example a helical spring ring.

In order to facilitate the assembly of the contact inserts at the holding frame, the wall sections can each have at least one lug on their inner surface, which lug protrudes in the direction of the interior space and can interact with these contact inserts when the contact inserts are inserted in order to displace the wall sections from the open position into the fixing position. Since the nose protrudes into the interior space, the contact insert can exert a pressure on the nose when inserted into the interior space, whereby the wall section can be pivoted from the open position into the fixed position. The wall section can thus be moved from the open position into the fastening position by means of the contact insert, so that it is no longer necessary to additionally manually move the wall section from the open position into the fastening position. The nose is preferably arranged at the lower end of the wall section, so that the wall section is operated by the contact insert when the contact insert has almost reached its end position in the interior of the base frame.

Furthermore, it can be provided that at least one spring element is arranged on the base frame, which spring element can interact with one or more wall sections in such a way that during the pivoting movement of the wall sections from the fastening position into the open position, the at least one spring element can be switched into the prestressed position. As a result of the pretensioning action of the spring element in the open position of the wall section, the wall section can be automatically pivoted back from the open position into the fixed position as soon as the contact insert is inserted into the interior space by the spring force acting on the wall section in the process. In this case, the one or more spring elements are preferably designed such that they are fastened to the base frame and at least partially span the one or more wall sections.

For example, the at least one spring element can be fixed at the lower edge of the base frame and the at least one spring element can have spring webs interacting with the wall sections, wherein the spring webs can each be held at the inner surface of the wall sections. The spring element may have, for example, a connecting bridge, which may be fastened to the base frame at the lower edge. The connecting bridge can be designed in a U-shape, so that it can surround the lower edge of the base frame. The spring webs can be integrally formed in each case at the connecting bridges. Preferably, one spring tab is provided for each wall section. The spring webs can engage or back hook at the wall sections, in particular at the inner surfaces of the wall sections, so that the spring webs can be fixed at the wall sections and can exert a spring action when the wall sections are moved into the fixing position and into the open position. The spring element may for example be cut and bent from a spring plate.

Alternatively, the spring elements may be configured such that each wall section corresponds to one spring element, wherein the spring elements may each span the outer surface of one of the wall sections. When the wall sections are moved from the fixing position into the open position, the respective spring element can be tensioned, since the wall sections can be pressed against the respective spring element and deflect it. The spring elements preferably each extend over a partial region of the outer surface of the wall section. Preferably, the spring elements each extend along the width of the wall section.

Preferably, the spring element is then constructed from a bent wire. The spring element can be constructed in a simple manner by means of a wire. The spring element, which is formed from a bent wire, can be fixed, for example, at the rotational axis or at a rotational pin formed at the wall section and can span the respective wall section in the width direction.

The object is also achieved according to the invention by means of a plug connector having a housing, a holding frame arranged in the housing and a plurality of contact inserts accommodated in the holding frame, wherein the holding frame is constructed and improved as described above.

Drawings

The invention is explained in detail below with the aid of preferred embodiments with reference to the drawings.

Displaying:

figure 1 shows a schematic view of a holding frame according to the invention,

fig. 2 shows a schematic view of the holding frame shown in fig. 1, with a wall section in an open position,

figure 3 shows a schematic perspective cross-sectional view of the holding frame shown in figure 2,

fig. 4 shows a schematic view of a holding frame according to the invention, with two holding devices each in the form of a fixed rail,

fig. 5 shows a schematic cross-sectional view of a holding frame according to the invention, in which a contact insert is inserted, with a nose configured at a wall section projecting into the interior space,

fig. 6 shows a schematic view of a holding frame according to the invention, with holding means in the form of tensioning elements to be arranged at the base frame and the wall sections,

fig. 7 shows a schematic view of the holding frame shown in fig. 6, with holding means arranged at the base frame and the wall sections,

fig. 8 shows a schematic view of a holding frame according to the invention, with spring elements arranged at the side walls of the base frame,

figure 9 shows a schematic view of the spring element shown in figure 8,

figure 10 shows a schematic perspective cross-sectional view of the holding frame shown in figure 8,

fig. 11 shows a schematic view of a holding frame according to the invention, with spring elements each arranged in the form of a wire at a side wall of the base frame,

figure 12 shows a schematic view of a spring element in the form of a wire as shown in figure 11,

FIG. 13 shows a schematic view of a wall section having a spring element as shown in FIGS. 11 and 12 arranged thereon, an

Fig. 14 shows a schematic view of the holding frame shown in fig. 11, without wall sections arranged in one of the openings.

Detailed Description

Fig. 1 shows a schematic illustration of a holding frame 100, which can be arranged in a housing of a plug connector.

The holding frame 100 has a base frame 10, which is constructed in one piece. The base frame has a first side wall 11, a second side wall 12 opposite the first side wall 11, a first end wall 13 and a second end wall 14 opposite the first end wall 13. The two

side walls

11, 12 are arranged parallel to each other. The two

end walls

13, 14 are likewise arranged parallel to one another. The

end walls

13, 14 are arranged at an angle of 90 deg. with respect to the

side walls

11, 12. The two

side walls

11, 12 and the two

end walls

13, 14 together enclose or define an interior space 15 of the base frame 10. The contact insert 200 can be inserted and fixed in the insertion direction E into this interior 15, as is shown, for example, in fig. 5.

The fastening of the contact insert 200 is performed by a wall section 16 arranged on the base frame 10. Each wall section 16 has a recess 17, into which recess 17 the protruding element 210 of the contact insert 200 can snap when the contact insert 200 is inserted into the interior space 15 of the base frame 10.

For each wall section 16, an opening 18 is formed in the base frame 10, in which opening the wall section 16 can be arranged. In fig. 1, an opening 18 without such a wall section 16 is shown. In the other openings 18, a respective wall section 16 is arranged in each case.

The wall section 16 is mounted in the opening 18 in a pivotally movable manner, so that the wall section 16 can be pivoted or tilted into an open position and a fixed position. In fig. 1, three wall sections 16 arranged in the opening 18 are positioned in fixed positions. In this fixing position, the wall sections 16 are arranged in alignment with the

respective side walls

11, 12 of the base frame 10, at which the wall sections 16 are positioned. In the fixed position, the contact insert 200 inserted into the interior space 15 can be held in a fixed position at the wall section 16. In the open position, as it is shown, for example, in fig. 2 at one of the four wall sections 16, the wall section 16 is pivoted or tilted in a direction away from the interior space 15. In the open position, due to the pivoted or inclined position of the wall sections 16, the interior space 15 is enlarged, in particular widened, in the region of the respective wall section 16, so that the insertion of the contact insert 200 can be facilitated without having to deform the wall section 16 itself. The wall section 16 may be constructed from a shape-stable material such that the wall section 16 is rigid and cannot be deformed. The wall sections 16 may be constructed of the same material as the base frame 10. The wall sections 16 and the base frame 10 may be constructed from a die cast material.

The wall section 16 is mounted for pivotal movement by means of a rotary shaft 19. In the design shown in fig. 1, the rotational axis 19 is an axis body 20, which axis body 20 is fixed in the base frame 10. The shaft body 20 extends here over the entire length of the

respective side wall

11, 12, so that the shaft body 20 extends over all openings 18 of the

side walls

11, 12. The wall sections 16 of the

side walls

11, 12 are therefore arranged here at a common axle body 20 and are therefore connected to one another by a common rotational axis 19. The wall sections 16 arranged at the

side walls

11, 12 thus perform the same movement, so that all wall sections 16 of the

side walls

11, 12 can be transferred to the open position and the fixed position simultaneously. At each side wall 11, 12 a rotation shaft 19 or a shaft body 20 is arranged, respectively.

Alternatively, the shaft body 20 may also be arranged in a fixed position at the base frame 10. In this embodiment, the wall sections 16 are arranged rotatably on the shaft body 20, so that the wall sections 16 can be transferred separately from one another into the open position and the fastening position.

Fig. 3 shows a sectional view through the base frame 10 and through two wall sections 16. It can be seen here that the wall sections 16 each have a through-hole 25, in which the rotational axis 19 is formed and in which the shaft body 20 is guided.

A rotation shaft 19 or an axle body 20 is arranged at a lower end 21 of the wall section 16. The lower end 21 is formed below the upper end 22 of the wall section 16 in the insertion direction E.

In this case, each wall section 16 has an insertion bevel 24 on its inner surface 23 pointing in the direction of the interior 15, in order to facilitate the insertion of the contact insert 200. An insertion bevel 24 is arranged at the upper end 22 of the wall section 16. The insertion bevels 24 are each formed above a recess 17 on the respective wall section 16.

In the fastening position, the wall section 16 can be latched at its upper end 22 in such a way that a fastening region 26 formed at the wall section 16 can interact with a mating fastening region 27 formed at the base frame 10. The fastening areas 26, which are designed as latching areas, can be designed in the form of latching noses, which can hook into or back-hook onto mating fastening areas 27, which are designed as mating latching areas, which can be designed in the form of undercuts (Hinterschnitt). The fastening region 26 is arranged on the upper end 22 of the wall section 16, in particular on an edge section 28 of the wall section 16 which is formed on the upper end 22. The mating fastening area 27 is arranged on an edge section 30 of the base frame 10, which is formed adjacent to an upper edge 29 of the base frame 10.

In order to be able to hold the wall section 16 in a fixed position relative to the base frame 10 in a fixed position, one or more holding devices 31 may be provided.

Fig. 4 shows a configuration of two retaining devices 31, each in the form of a fixed rail, which can be pushed onto the edge section 30 of the base frame 10 at the

side walls

11, 12. The retaining device 31, which is designed in the form of a fixed rail, has a C-shaped or U-shaped cross section and surrounds the edge section 30 or the upper edge 29 of the base frame 10 and the wall section at the edge section 28 at the upper end 22 of the wall section 16. In the embodiment shown in fig. 4, the retaining device 31 embodied as a fixed rail abuts in the pushed-up state against the recess 17 of the wall section 16, so that the recess 17 is not covered by the retaining device 31.

As can be seen in the sectional view shown in fig. 5, one or more noses 32 projecting in the direction of the interior 15 are formed on the inner surface 23 of the wall section 16, which noses 32 interact with the contact insert 200 when it is inserted in order to convert the wall section 16 from the open position into the fastening position. The wall section 16 arranged to the left in fig. 5 is positioned in the open position and the wall section 16 arranged to the right in fig. 5 is positioned in the fixed position. Upon insertion into the interior 15, pressure is exerted on the nose 32 by means of the contact insert 200, whereby the wall section 16 can be pivoted from the open position into the securing position. The movement of the wall section 16 from the open position into the fastening position can thus be triggered by means of the contact insert 200, so that no additional manual movement of the wall section 16 from the open position into the fastening position is required. Here, the nose 32 is arranged at the lower end 21 of the wall section 16, so that when the contact insert 200 almost reaches its end position in the interior space 15 of the base frame 10, the operation of the wall section 16 is effected by the contact insert 200.

Fig. 6 and 7 show a configuration with a holding device 33 for holding the wall section 16 in a fixed position, which holding device is configured in the form of a tensioning element which, in the fixed position, surrounds the base frame 10 at an outer surface 34 of the base frame 10 and on an outer surface 35 of the wall section 16. The holding device 33 is here embodied in the form of a ring. For a reliable and defined accommodation of the retaining device 33, a circumferential groove 36 is formed on the outer surface 34 of the base frame 10 and on the outer surface 35 of the wall section 16, in which groove the retaining device 33 can be positioned. The retaining device 33 can be prevented from undesirably slipping off the base frame 10 and the wall sections 16 by inserting the retaining device 33 into the groove 36. Fig. 7 shows the retaining device 33 in a position fixed to the base frame 10. The retaining device 33 is positioned at the wall section 16 at its upper end 22 and close to the upper edge 29 of the base frame 10.

In order to be able to pivot or tilt the wall section 16 automatically from the open position into the fixing position after insertion of the contact insert 200, the wall section 16 can be pretensioned in the open position by means of spring elements 37, 38 (as shown in fig. 8 to 14).

In the embodiment shown in fig. 8 to 10, the spring element 37 is arranged at the lower edge 39 of the base frame 10 or of the

side walls

11, 12 of the base frame 10. As can be seen in fig. 9, the spring element 37 has a connecting bridge 40, which can be fastened to the lower edge 39 of the base frame 10 or of the

respective side wall

11, 12. The connecting bridges 40 are U-shaped, so that the connecting bridges 40 can surround the lower edge 39 of the base frame 10. A plurality of spring webs 41 are respectively integrally formed at the connecting bridges 40. The spring webs 41 extend into the interior 15 of the base frame 10. A spring web 41 is associated with each wall section 16 of the

side walls

11, 12 of the base frame, said spring web extending from the connecting bridge 40 as far as the respective wall section 16, so that the spring web 41 can be connected to the respective wall section 16. The spring tabs 41 can engage or back-hook at the wall section 16, in particular at the inner surface 23 of the wall section 16, so that the spring tabs 41 can be fixed at the wall section 16 and can exert a spring action when the wall section 16 is moved into the fixing position and the open position, as can be seen in the sectional view of fig. 10. A rear engagement 42 is formed on the inner surface 23 of the wall section 16, on which a free end section 43 of the spring web 41 can engage. The free end sections 43 are bent in the direction of the respective wall section 16 to enable back hooking at the rear engagement portion 42. As can be seen in fig. 10, when the wall section 16 is moved into the open position, the spring webs 41 are stretched and deflected, so that a pretensioning force can be exerted on the wall section 16. Such a spring element 37 is arranged here at each of the two

side walls

11, 12.

Fig. 11 to 14 show a configuration in which the spring element 38 for applying a preload force to the wall section 16 in the open position is not arranged on the inner surface 23 of the wall section 16, but interacts with the outer surface 35 of the wall section 16. Each wall section 16 corresponds to one spring element 38. The spring elements 38 each extend over the width of the wall section 16. The spring elements 38 extend over the outer surface 35 of the respective wall section 16 and over a partial region of the outer surface 34 of the base frame 10 or of one of the two

side walls

11, 12.

The spring element 38 is designed here in the form of a bent wire. The spring element 38 is bent in such a way that it has two opposite fastening regions 44, by means of which the spring element 38 is fastened to the respective wall section 16. As shown in fig. 13, the wall section 16 has two pivot pins 45 as pivot axes 19, which can engage and be supported in recesses 46 formed in the region of the opening 18 at the base frame 10 or at the

side walls

11, 12 of the base frame 10. The fastening region 44 of the spring element 38 is bent in such a way that the spring element 38 winds or winds the rotation pin 45 in the region of the fastening region 44. The spring element 38 is straight before and after the respective fastening region 44. The spring elements 38 have a U-shaped design at the location where the spring elements 38 cross the respective wall section 16 along their width. In the region of the U-shaped design, the spring element 38 can rest flat against the outer surface 35 of the respective wall section 16 or it can be inserted into a groove-shaped recess formed at the outer surface 35 of the respective wall section 16. The lower free end 47 of the spring element 38, viewed in the insertion direction E, can rest flat against the outer surface 34 of the base frame 10 or of the

side walls

11, 12 of the base frame 10, or the lower free end 47 of the spring element 38 can be inserted into a groove-shaped recess 48 formed in the outer surface 34 of the base frame 10, as can be seen in fig. 14. The free ends 47 of the spring elements 38 are arranged to extend parallel to each other.

Description of the reference numerals

100 holding frame

10 base frame

11 first side wall

12 second side wall

13 first end wall

14 second end wall

15 inner space

16 wall sections

17 recess

18 opening

19 rotating shaft

20 shaft body

21 lower end part

22 upper end portion

23 inner surface

24 insertion bevel

25 through hole

26 area of fixation

27 mating fastening region

28 edge segment

29 upper edge

30 edge segment

31 holding device

32 nose

33 holding device

34 outer surface of the container

35 outer surface of

36 groove

37 spring element

38 spring element

39 lower edge

40 connecting bridge

41 spring contact

42 rear joint

43 free end section

44 fixation area

45 rotating pin

46 recess

47 free end

48-groove-shaped hollow part

200 contact insert

210 projecting element

E direction of insertion

Claims

1. Holding frame (100) for a plug connector, the holding frame (100) being intended to receive a plurality of contact inserts (200), the holding frame (100) having

-a base frame (10) having a first side wall (11), a second side wall (12) opposite the first side wall (11), a first end wall (13) and a second end wall (14) opposite the first end wall (13), wherein the first side wall (11), the second side wall (12), the first end wall (13) and the second end wall (14) enclose an interior space (15) of the base frame (10) into which a contact insert (200) can be inserted along an insertion direction (E), and

-a plurality of wall sections (16) having an inner surface (23) pointing in the direction of the inner space (15) and an outer surface (35) pointing away from the inner space (15) and which, in a fixed position, hold a contact insert (200) inserted into the inner space (15) of the base frame (10) at the base frame (10),

-wherein a plurality of openings (18) are formed at the first side wall (11) and the second side wall (12), wherein one of a plurality of wall sections (16) is mounted in each opening (18) in a pivotably movable manner in order to be transferred into a securing position and an open position, respectively, and

-wherein the base frame (10) and the wall section (16) are constructed from the same material.

2. The holding frame (100) according to claim 1, characterized in that the wall section (16) is constructed from a shape-stable material.

3. The holding frame (100) according to claim 1 or 2, characterised in that the wall sections (16) are constructed from a diecast material.

4. The holding frame (100) according to claim 1, characterised in that the wall section (16) is supported in the opening (18) on a rotational axis (19) in a pivotably movable manner.

5. The holding frame (100) according to claim 4, characterised in that each wall section (16) has its own axis of rotation (19).

6. The holding frame (100) according to claim 4, characterized in that two or more wall sections (16) arranged at the first side wall (11) and/or the second side wall (12) are pivotably movably supported in the opening (18) on a common rotational axis (19).

7. The holding frame (100) according to claim 1, characterised in that the wall sections (16) each have an insertion bevel (24) at their inner surface (23).

8. The holding frame (100) according to claim 1, characterised in that the wall sections (16) each have a fixing region (26) which in each case latches in a fixing position with a mating fixing region (27) formed at the base frame (10).

9. The holding frame (100) according to claim 1, characterized in that, for holding the wall sections (16) in the fixing position, at least one holding device (31, 33) can be fixed at the base frame (10), which at least partially surrounds one or more of the wall sections (16) in the fixing position.

10. The holding frame (100) according to claim 9, characterised in that the at least one holding device is configured in the form of a fixing rail which can be fitted to an edge section (30) of the base frame (10) in such a way that in the fixing position it at least partially surrounds an edge section of one or more of the edge section (30) and the wall section (16) of the base frame (10).

11. The holding frame (100) according to claim 9, characterised in that the at least one holding device is constructed in the form of a tensioning element which in the fixing position surrounds the base frame (10) at an outer surface directed away from the interior space (15) and surrounds the wall section (16) at an outer surface (35) of the wall section (16).

12. The holding frame (100) according to claim 11, characterised in that the tensioning element is an elastically constructed polymer element or a metal spring element.

13. The holding frame (100) according to claim 1, characterised in that the wall sections (16) each have at least one nose (32) on their inner surface (23) which projects in the direction of the interior (15) and which interacts with the contact insert (200) when the contact insert (200) is inserted in order to convert the wall sections (16) from the open position into the fixing position.

14. The holding frame (100) according to claim 1, characterised in that at least one spring element (37, 38) is arranged at the base frame (10), which spring element interacts with one or more of the wall sections (16) in such a way that the at least one spring element (37, 38) can be transferred into a prestressed position during the pivoting movement of the wall sections (16) from the fastening position into the open position.

15. The holding frame (100) according to claim 14, characterized in that the at least one spring element is fixed at a lower edge (39) of the base frame (10) and has a plurality of spring webs (41) which interact with the wall sections (16), wherein the spring webs (41) are each held at an inner surface (23) of the wall sections (16).

16. The holding frame (100) according to claim 14, wherein each wall section (16) corresponds to one spring element, wherein the spring elements each span the outer surface (35) of one of the wall sections (16).

17. The holding frame (100) according to claim 16, characterised in that the spring element (38) is constructed from a bent wire.

18. A plug connector having a housing, a holding frame (100) arranged in the housing and a plurality of contact inserts (200) accommodated in the holding frame (100), characterized in that the holding frame (100) is constructed according to any one of claims 1 to 17.