CN114336148A - Retaining frame for plug-in connectors - Google Patents

Abstract

The present invention shows and describes a holding frame (1) for a plug-in connector for accommodating a plurality of contact inserts, having two mutually opposite side walls (2, 2') and two identical End walls (3, 3') opposite each other, wherein the two end walls (3, 3') are arranged perpendicular to the side walls (2, 2'), and wherein on the two end walls (3, 3') Flange sections (4, 4') are respectively arranged. The holding frame ( 1 ) can be fastened in the housing part ( 22 ) of the plug connector in a particularly simple manner by arranging the locking element ( 5 ) and the spring on at least one flange section ( 4 , 4 ′) Element (6), the locking element (5) has a base body (7) with a locking section (8) and an actuating section (9), the locking element (5) being fastened to the flange section ( 4, 4'), the spring element (6) applies a spring force to the locking element (5), wherein the locking element (5) is able to pivot from the first position to the second position against the spring force of the spring element (6).

Description

Retaining frame for plug-in connectors

technical field

The invention relates to a holding frame for a plug-in connector for accommodating a plurality of contact inserts, the holding frame having two mutually opposite side walls and two mutually opposite end walls, In this case, the two end walls are arranged perpendicular to the side walls, and in each case a flange section is arranged on the two end walls. Furthermore, the invention relates to a contact insert for a plug connector and to an assembly consisting of a holding frame or a contact insert and a housing part of the plug connector, wherein the housing part is designed to accommodate the holding frame or contact insert.

Background technique

The holding frame for the plug connector serves to accommodate a plurality of contact inserts which can be inserted into the holding frame and consist of an insulator with a rectangular cross-section, in which the different contact elements can be arranged. By enabling the respective insertion of the contact inserts into the holding frame, it is possible to equip the holding frame with different contact inserts depending on the application. The equipped holding frame into which the corresponding contact insert is inserted can be inserted into the housing part of the plug connector and fixed therein, wherein the plug connector is intended to be fixed with the corresponding mating plug connector.

Alternatively, the contact insert can also be inserted directly, ie without the use of a retaining frame, into the housing part of the plug connector and fixed therein. Such a contact insert has an insulator in which a plurality of contact elements are arranged. Furthermore, on the two mutually opposite end sides of the insulator, flange sections are respectively provided, by means of which flange sections the contact insert is positioned and fastened in the housing part of the plug-in connector. The contact elements may in particular be contact pins or contact sockets which are connected with corresponding contact elements of the counterpart contact insert when the contact insert is plugged together with the corresponding counterpart contact insert. Since in such a contact insert the number of contact elements arranged in the insulator does not change, the contact insert is often also referred to as a stationary pole contact insert.

Different types of holding frames are known in practice, which enable the modular insertion of the individual contact inserts. Thus, there is a holding frame consisting of two frame halves that are hingedly connected to each other, wherein the contact inserts are inserted into corresponding recesses in the holding frame in the open state of the holding frame and form-fit in the closed state of the holding frame remain in its position. Furthermore, there is a holding frame with a fixed base frame, and in a first step the individual contact inserts are likewise inserted into the corresponding recesses. In order to hold and fix the contact insert in the base frame, in a second step the fixing clips are fastened to the base frame. In this case, the securing clips overlap projections which are formed on the end face of the contact insert and engage in corresponding recesses on the upper edge of the basic frame.

DE 10 2015 103 563 A1 discloses a holding frame made of an electrically conductive material which consists of a rigid, rectangular base frame with two side walls and two end walls, wherein the side walls are An upwardly open recess is formed on the upper edge of the , which is laterally bounded by a beam extending parallel to the insertion direction of the contact insert. A plurality of spring-elastic webs are fastened to the two side walls, separated from each other by gaps, and recesses are formed in each of the webs. The webs are arranged on the side walls in such a way that the recesses in the webs and the recesses in the side walls are aligned with each other. The upper edges of the recesses are each delimited by arcuate sections on which inwardly projecting latching lugs are formed. In this case, the latching lugs protrude into corresponding recesses in the side walls, so that the latching projections of the contact insert inserted into the holding frame are overlapped by the latching lugs formed on the webs. In this case, the lower edge of the latching projection rests on the lower edge of the recess of the side wall, while the lateral edge of the latching projection is held by a beam which laterally delimits the recess.

A holding frame constructed in this way enables a simple and still reliable fixation of the contact inserts in the holding frame, wherein the individual contact inserts can also be exchanged without problems.

The fixing of the retaining frame equipped with the contact insert to the housing part of the plug-in connector into which the retaining frame is inserted is usually carried out by means of screws, for this purpose in the flange section of the retaining frame Corresponding openings are formed and corresponding holes with corresponding internal threads are formed in the housing part of the plug connector. In practice, the contact inserts of the stationary poles are also usually fastened in the housing part of the plug-in connector by means of screws, for which purpose corresponding holes are also formed in the flange sections of the contact inserts. As a result, a mechanically fixed and reliable connection of the holding frame or the contact insert in the housing part can be achieved. The disadvantage here, however, is that the assembly process is relatively complex and the assembly time associated therewith is relatively long.

SUMMARY OF THE INVENTION

It is therefore an object of the present invention to provide a holding frame or a contact insert which enables as simple an assembly as possible into a housing part of a plug connector. Furthermore, an assembly consisting of a holding frame or a contact insert and a housing part of a plug-in connector should be provided, wherein the connection of the holding frame or the contact insert and the housing part can be realized as simply as possible.

This object is achieved in the holding frame described in the introduction by means of the features of claim 1 by arranging a locking element and a spring element on at least one flange section, wherein the locking element has a locking section and an actuating area. segment base. The locking element is here fixed on the flange section by means of a spring element, wherein the spring element additionally exerts a spring force on the pivotably arranged locking element by means of which the locking element is pushed into the first position. In order to pivot the locking element from the first position to the second position, a force must therefore be exerted against the spring force of the spring element.

In the case of the contact insert, this object is also achieved by means of the features of claim 11 by arranging a locking element and a spring element on at least one flange section, wherein the locking element has a locking section and an actuating section and the locking element is fixed on the flange section by means of a spring element, wherein the spring element exerts a spring force on the locking element and the locking element can be pivoted from the first position to the second position against the spring force of the spring element . In order to pivot the locking element from the first position to the second position, a force must therefore also be exerted here against the spring force of the spring element.

In the holding frame or the contact insert according to the invention, with the locking element in its first, locking position, the holding frame or the contact insert is fixed in the housing part of the plug connector by means of the locking element . In this locking position, the locking section of the locking element engages in a corresponding locking recess in the inner side of the opposite end wall of the housing part. As a result, a secure and reliable fixation of the equipped holding frame or the contact insert in the corresponding housing part of the plug-in connector is achieved, without having to screw screws into the housing part for this purpose. Since the screw fastening of the holding frame or the contact insert in the housing part can be dispensed with, the connection of the holding frame or the contact insert and the housing part can be realized in a simple and mainly time-saving manner.

In the retaining frame according to the invention, the at least one locking element is not only fastened to the flange section by means of a spring element, but the spring element is also designed such that it exerts a spring force on the locking element, by means of which spring force, The locking element is held in the first position or pivoted to the first position. Thereby, it is not necessary for the user to place the locking element in its locking position when the holding frame has been inserted into the housing part of the plug connector. The locking of the inserted holding frame is thus automatically achieved by the spring force of the spring element. If the holding frame is to be released again and removed from the housing part of the plug connector, the locking element can be pivoted from its first position into its second position against the spring force of the spring element for this purpose. For this purpose, an actuating section is formed on the locking element, on which the user can act with a tool or a finger. This also applies correspondingly to the contact insert of the invention.

The design and arrangement of the locking element and the spring element on the flange section is independent of whether the flange section of the retaining frame or the flange section of the contact insert is involved. Therefore, the following embodiments are applicable to both the retaining frame and the contact insert, even if only the retaining frame or the contact insert is mentioned.

It has already been explained that the locking element and the spring element are arranged on at least one flange section. Even though in principle it would be sufficient to arrange only one locking element and one spring element on one flange section, usually the holding frame or the contact insert is designed in such a way that one locking element is each arranged on both flange sections element and a spring element. For this purpose, a recess is preferably formed in at least one flange section, in which recess the locking element and the spring element are at least partially arranged. In this case, preferably a bow spring is used as the spring element, which bow spring has a circular or approximately circular cross section and is produced from a corresponding wire segment. The recess in the flange section of the retaining frame or the contact insert is then preferably groove-shaped, at least in the region where the spring element is arranged, so that the spring element can simply be inserted into the recess in the flange section.

In order to fasten the locking element on the flange section in a simple manner by means of the spring element, according to an advantageous configuration, the base body of the locking element has a receiving area in which the middle section of the spring element is arranged. The recess and the flange section are then configured such that the locking element is partially arranged in the central region of the recess and the lateral sections of the spring element are arranged in the lateral regions of the recess. The recesses are here adapted in their respective regions to the respective dimensions of the locking element or the spring element, so that the recesses can have different dimensions in different regions.

According to a preferred embodiment of the holding frame and the contact insert, the spring element has a U-shaped central section with a U-shaped back and two U-shaped arms and two end sections, the end sections are respectively coupled to the free ends of the U-shaped arms. The spring element is then overall approximately W-shaped. In this design of the spring element, the U-shaped back of the U-shaped central section is arranged in a receiving area in the base body of the locking element, while at least the two end sections are arranged in recesses in the flange sections in the lateral area. The U-shaped arms of the U-shaped central section of the spring element are preferably also arranged in the lateral region of the recess in the flange section, but can also be arranged at least partially in the receiving region in the base body of the locking element middle.

In order that the locking element can also be held in the first position or pivoted into the first position by the relatively low spring force of the spring element, the locking element is in the recess in the flange section and the receiving area is in the recess of the locking element. The arrangement in the base body is such that the axis of rotation of the locking element and the longitudinal axis of the middle section of the spring element are offset horizontally and vertically to each other. This achieves that the point of action of the spring element does not coincide with or is arranged at the same height as the point of rotation or the axis of rotation of the locking element, so that a lever action is achieved due to the double bias, by means of which the locking element is pivoted into the first position middle.

According to another particularly advantageous embodiment of the invention, a bevel is formed on the base body of the locking element, which bevel is oriented in such a way that it simplifies the orientation of the holding frame or the contact insert to the housing of the plug-in connector in the insertion direction Insertion in body parts. For this purpose, the chamfer is arranged between the receiving area for the middle section of the spring element and the locking section, so that the chamfer is located before the locking section in the insertion direction of the holding frame or the contact insert. This results in that when the retaining frame is inserted into the housing part of the plug-in connector, the bevel on the base body first comes into contact with the upper edge of the housing part, whereby the locking element is automatically removed from its first position when the retaining frame is inserted further into the housing part. One position is pivoted to its second position. Therefore, the user does not have to simultaneously pivot the locking element into its second position when inserting the retaining frame into the housing part of the plug-in connector. As a result, the user can simply grasp the holding frame by hand and insert it into the housing part of the plug connector. This accordingly also applies when the contact insert is inserted into the housing part of the plug connector.

It was already explained at the outset that the holding frame serves to accommodate a plurality of contact inserts which can be inserted into the holding frame. Within the scope of the present invention, it does not matter how the retaining frame is configured to accommodate and secure the individual contact inserts. Therefore, the invention can be implemented in a holding frame which is designed differently in this connection. According to a preferred solution, a plurality of elastic tabs are respectively provided on the two side walls of the holding frame, and the tabs respectively have latching protrusions for fixing the contact inserts inserted into the holding frame. lock mechanism. In this case, the latching mechanism can be, for example, a latching window formed in the web. As an alternative to this, two retaining elements can also be formed as latching means on the upper region of the web in the insertion direction of the contact insert.

The aforementioned objects are achieved by means of the features of claim 15 in an assembly consisting of a holding frame according to the invention or a contact insert according to the invention and a housing part of a plug-in connector. In this case, the housing part of the plug-in connector has two mutually opposite side walls, two mutually opposite end walls and a plurality of bearing sections which, when the holding frame or the contact insert is inserted into the housing part, are The two flange sections of the holding frame or the contact insert are placed on the support section. The housing part as a whole is of approximately cap-shaped design, wherein its inner dimensions are adapted to the corresponding outer dimensions of the holding frame or the contact insert, at least in cross-section.

According to the invention, a locking recess is formed here in the inner side of at least one end wall of the housing part, the locking section of the locking element being in the first position of the locking element when the holding frame or the contact insert is inserted into the housing part into the locking recess in position. In this case, the locking recess is adapted in its dimensions to the dimensions of the locking element, so that when the locking element is in its first position, ie the locking position, the holding frame or the contact insert is prevented from being pulled out of the housing part against the insertion direction , since the locking section is then arranged in the locking recess.

As mentioned above, in the holding frame or the contact insert according to the invention, a locking element and a spring element are preferably provided on each of the two flange sections. In this case, corresponding locking recesses are also formed in the inner side on the two end walls of the housing part, each locking section of the locking element engaging when the holding frame or the contact insert is inserted into the housing part into the locking recess.

Description of drawings

In particular, there are numerous possibilities for designing and improving the holding frame according to the invention, the contact insert according to the invention and the assembly consisting of the housing part and the holding frame or the contact insert. For this purpose, reference is made to the dependent claims and the following description of preferred embodiments in conjunction with the accompanying drawings. shown in the attached

Figure 1 shows a perspective view of a first embodiment of the retaining frame,

FIG. 2 shows the holding frame according to FIG. 1 from the front and from the side,

FIG. 3 shows an embodiment of a housing part with an inserted retaining frame in a perspective view and a plan view,

Figure 4 shows the spring element in three different views,

Figure 5 shows three different embodiments of locking elements,

FIG. 6 shows the housing part according to FIG. 3 in longitudinal section with the inserted retaining frame and the two locking elements in the locked state,

FIG. 7 shows the housing part according to FIG. 3 in longitudinal section without the retaining frame inserted,

8 shows the housing part according to FIG. 3 in longitudinal section with the retaining frame partially inserted and the two locking elements in the open position,

FIG. 9 shows the housing part according to FIG. 3 in cross section, wherein the holding frame has not yet been inserted,

FIG. 10 shows the housing part according to FIG. 3 in cross section with the retaining frame inserted and the two locking elements in the locked position,

FIG. 11 shows two enlarged detail views of the housing part according to FIG. 3 with the retaining frame inserted, one showing the locking element in the locked position and one showing the locking element in the open position,

Figure 12 shows a perspective view of one embodiment of a contact insert,

Figure 13 shows the contact insert according to Figure 12 from the front and from the side, and

FIG. 14 shows the contact insert according to FIG. 12 in a plan view.

Detailed ways

FIGS. 1 and 2 show a holding frame 1 of a plug connector for accommodating a plurality of contact inserts, wherein the holding frame 1 can be inserted into a housing part 22 of the plug connector, as for example in FIG. 3 shown in. The holding frame 1 has a rectangular basic shape and consists of two side walls 2 , 2 ′ facing each other and two end walls 3 , 3 ′ also facing each other, wherein the two end walls 3 , 3 ′ are perpendicular to each other. The two side walls 2, 2' are arranged. Also arranged on the two end walls 3 , 3 ′ in each case are flange sections 4 , 4 ′, which serve to fasten the holding frame 1 in the housing part 22 . In the present case, the holding frame 1 is constructed in one piece and can in particular be designed as a zinc die-casting or an aluminum die-casting.

In order to fix the holding frame 1 in the housing part 22 , a locking element 5 and a spring element 6 are respectively arranged on the two flange sections 4 , 4 ′. A preferred embodiment of the spring element 6 is shown enlarged in three different views in FIG. 4 . FIG. 5 shows three possible embodiments of the locking element 5 . Regardless of the specific design, the locking element 5 has a base body 7 with a locking section 8 and an actuating section 9 . Furthermore, in order to connect the locking element 5 to the spring element 6 , a groove-shaped receiving region 11 is formed in the base body 7 of the locking element 5 . In the assembled state, the middle section 12 of the spring element 6 is inserted and held in the receiving area 11 , for example latched into the receiving area.

As can be seen in particular from the perspective view of the retaining frame 1 according to FIG. 1 and the view of the retaining frame 1 according to FIG. 2 a , recesses 10 , a part of the locking element 5 and the spring element 6 are formed in the flange sections 4 , 4 ′ A part of is arranged in the recess. The spring element 6 is fastened to the flange section 4 by partially arranging the spring element 6 in the recess 10 in the flange section 4 . The locking element 5 is also fastened to the flange section 4 by means of the spring element 6 or its intermediate section 12 arranged in the receiving area 11 , wherein the connection between the locking element 5 and the spring element 6 allows the locking element 5 to be released from the first Pivoting movement from one position to a second position.

As can be seen from the individual views of the spring element 6 in FIGS. 4 a , 4 b and 4 c , the spring element 6 has a U-shaped central section 13 consisting of a U-shaped back 14 and two U-shaped arms 15 . Furthermore, on the respective free ends of the U-shaped arms 15 , the spring elements 6 each have end sections 16 which are bent by approximately 180°, so that the spring elements 7 are bent approximately in a W shape as a whole. The middle section 12 of the spring element 6 is formed here by the U-shaped back 14 , which middle section is arranged in the receiving area 11 of the base body 7 of the locking element 5 . Thus, in the assembled state, the U-shaped back 14 of the spring element 6 is arranged in the receiving area 11 of the spring element 5 , while the two U-shaped arms 15 and the two end sections 16 are arranged in the flange sections 4 , 4' in the corresponding lateral regions of the recess 10. Since the spring element 6 is designed in the form of an arc in the exemplary embodiment shown, the corresponding region of the recess 10 is formed correspondingly in the shape of a groove in the flange sections 4 , 4 ′.

Furthermore, as can be seen in FIGS. 4 b and 4 c , the end sections 16 of the spring element 6 are offset with respect to the plane of the U-shaped central section 13 , ie bent towards the end walls 3 , 3 ′ of the holding frame 1 . Furthermore, the two end sections 16 of the spring element 6 are each bent away from the central section 13 of the U-shape so that the end sections 16 and the U-shaped arms 15 are not oriented parallel to each other.

FIGS. 6 to 8 each show the housing part 22 with the holding frame 1 in longitudinal section. In the illustration according to FIG. 6 , the holding frame 1 is fully inserted into the housing part 22 so that the two locking elements 5 are in their first locking position. In the illustration according to FIG. 7 , however, the holding frame 1 has not yet been fully inserted into the housing part 22 . Here, however, the locking element 5 on the two flange sections 4 , 4 ′ is also in the first position due to the spring force of the spring element 6 . In this case, the locking elements 5 are each in contact with the upper edge of the housing part 22 with the bevels 17 formed on the base body 7 , so that when the holding frame 1 is inserted further into the housing part 22 , the locking elements 5 overcome the force of the spring elements 6 . The spring force pivots from its position into its second position, as shown in FIG. 8 . If the holding frame 1 is fully inserted into the housing part 22 , the locking element 5 is automatically pivoted again into its first position due to the spring force of the spring element 6 , whereby the holding frame 1 is locked in the housing part 22 , eg This is shown in FIG. 6 .

Thus, when inserting the holding frame 1 into the housing part 2, the locking element 5 does not have to be actuated by the user, so that the holding frame 1 can be inserted very easily into the housing part 22 and then automatically locked therein. If the holding frame 1 is to be pulled again from the housing part 22 against the insertion direction E, the two locking elements 5 must be pivoted by the user from their first position into their second position against the spring force of the spring elements 6 . For this purpose, the locking element 5 has an actuating section 9 .

Here, it can be seen from the separate illustration of the locking element 5 in FIG. 5 that the actuating section 9 can be designed differently. In the embodiment shown in FIG. 5 a , the actuating section 9 is designed as a handle section 18 , wherein the handle sections 18 of the two locking elements 5 are arranged on the two flange sections 4 , 4 ′ in such a way that, This enables the two handle sections 18 to be actuated simultaneously by the user's hand, in particular the thumb and index finger of the hand. As a result, the holding frame 1 can be removed from the housing part 22 very easily, in particular without additional tools being required for this purpose.

In contrast, in the embodiment of the locking element 5 shown in FIGS. 5 b and 5 c , a receptacle 19 for a tool is formed in the actuating section 9 in each case. The locking element 5 can then be pivoted from its first position into its second position, wherein the tip of the tool is inserted into the receptacle 19 in the actuating section 9 and the tool is then pivoted. The shape of the receptacle 19 makes it possible in a simple manner to determine whether the locking element 5 can be pivoted only with a special tool ( FIG. 5 b ) or also with a conventional screwdriver ( FIG. 5 c ). Thus, it can generally be determined by the configuration of the actuating section 9 of the locking element 5 whether it is easier or more difficult to dismantle the holding frame 1 .

The housing part 22 , which is shown in perspective in FIG. 3 a , has an overall cap-shaped design. In this case, the housing part 22 has two side walls 23 , 23 ′ facing one another and two end walls 24 , 24 ′ also facing one another, so that the housing part 22 has a substantially rectangular shape on its open side. shape, the holding frame 1 is inserted in the open side in the insertion direction E. In this case, the inner dimensions of the housing part 22 are adapted to the outer dimensions of the holding frame 1 . In order to be able to arrange the holding frame 1 at a defined position in the housing part 22 , the housing part 22 has a total of internally (in particular in the transition region between the side walls 23 , 23 ′ and the end walls 24 , 24 ′) Four bearing sections 25 on which the inserted holding frame 1 rests with its two flange sections 4 , 4 ′.

In order to fix the holding frame 1 in the housing part 22 in the inserted position, a locking recess 26 is formed in each of the inner sides of the two end walls 24 , 24 ′, in the first position of the locking element 5 the locking of the locking element 5 is formed. The section 8 engages into this locking recess 26 , as can be seen, for example, in FIG. 6 . Furthermore, in order to accommodate the flange sections 4 , 4 ′, recesses 27 are formed in the inner sides of the two end walls 24 , 24 ′, the dimensions of which are adapted to the outer dimensions of the flange sections 4 , 4 ′.

As can be seen from a comparison of the representations according to FIGS. 9 and 10 , the spring element 6 as a whole has a lower recess than the end walls 24 , 24 ′ of the housing part 22 due to the bending of the end sections 16 away from the outside. 27 larger width. When the holding frame 1 is inserted into the housing part 22 , the two end sections 16 of the spring element 6 are thus slightly compressed, so that in the fully inserted state of the holding frame 1 the end sections 16 bear against the spring stress. Against the side wall 28 of the recess 27 in the housing part 22 . This has the advantage that an additional contact is established between the holding frame 1 and the housing part 22 via the two spring elements 6 . For the metallic housing part 22 , an electrical connection to the metallic holding frame 1 , and in particular to the PE connections of the holding frame 1 , can thus be established.

From the enlarged detail view according to FIG. 11 a it can be seen again how the locking section 8 of the locking element 5 is arranged in the locking recess 26 in the end wall 24 of the housing part 22 when the locking element 5 is in its first position middle. Conversely, if the locking element 5 is pivoted from its first position in the direction s to its second position according to FIG. 11 b , the locking section 8 is no longer located in the locking recess 26 , thereby maintaining the connection between the frame 1 and the housing part 22 The interlock is released so that the holding frame 1 can be pulled out of the housing part 22 against the insertion direction E.

Furthermore, as can be seen from a comparison of Figures 11a and 11b, when the locking element 5 is pivoted from its first position (Figure 11a) to its second position (Figure 11b), the U-shaped back 14 of the spring element 6 is slightly displaced from the Its rest position is deflected outwards in the direction of the end wall 24 of the housing part 22 . This produces a spring force F by which the locking element 5 is pivoted into its first position again when the handle section 18 of the locking element 5 is no longer held in the second position.

Furthermore, it can be seen from FIG. 11 b that the axis of rotation D of the locking element 5 and the longitudinal axis L of the U-shaped back 14 of the spring element 6 and thus the point of action of the spring force F are offset not only horizontally but also vertically. Thereby, a lever force acts on the locking element 5 by means of which the locking element 5 is pivoted back into its first position when the user no longer deflects the handle section 18 .

Finally, as can also be seen in particular from FIGS. 1 and 2 b , two elastic webs 20 are arranged on the two side walls 2 , 2 ′ of the holding frame 1 in each case, said webs at their free ends In each case, there are two inwardly curved holding elements 21 for securing the latching projections of the contact insert inserted into the holding frame 1 . As an alternative to this, detent windows can also be formed at the free ends of the webs, into which detent projections of the contact inserts are respectively engaged when the contact inserts are arranged in the holding frame 1 . In the embodiment shown, two separate contact inserts can be inserted into the interior of the holding frame 1 side by side.

FIGS. 12 to 14 show a preferred embodiment of the contact insert 30 of the stationary pole in different views. The contact insert 30 can be inserted directly into the housing part 22 of the plug connector, ie without being arranged in the holding frame. The contact insert has an approximately rectangular insulator body 31 in which a plurality of contact elements 32 are arranged, in the embodiment shown, the contact elements 32 are contact sockets. However, the contact elements can also be configured as contact pins. On the two end walls 33 , 33 ′ of the insulating body 32 , in each case, flange sections 34 , 34 ′ are arranged, which serve to fasten the contact insert 30 in the housing part 22 .

To fix the contact insert 30 in the housing part 22 , a locking element 5 and a spring element 6 are respectively arranged on the two flange sections 34 , 34 ′. Here, the locking element 5 and the spring element 6 are constructed as described above, in particular with reference to FIGS. 4 and 5 . As can be seen in particular from the perspective view of the contact insert 30 according to FIG. 12 and the view of the holding frame 1 according to FIG. 13 a , recesses 35 are formed in the flange sections 34 , 34 ′, and the locking elements 5 have recesses 35 . A part and a part of the spring element 6 are arranged in this recess. The recesses 35 in the flange sections 34 , 34 ′ of the contact insert 30 therefore correspond to the recesses 10 in the flange sections 4 , 4 ′ of the retaining frame 1 in terms of their function and design.

By partially arranging the spring element 6 in the recess 35 in the flange section 34 , the spring element 6 is fastened to the flange section 34 and by the spring element 6 or its intermediate section arranged in the receiving area 11 12, the locking element 5 is also fastened to the flange section 34. Here, the connection between the locking element 5 and the spring element 6 enables the pivoting movement of the locking element 5 from the first position to the second position. By means of the actuating sections 9 of the two locking elements 5 , which are designed as handle sections 18 , they can be easily actuated by the user by hand, so that the contact insert 30 can be removed from the housing part 22 simply and without tools. . The contact insert 30 can likewise be fastened in the housing part 22 , as this is shown in FIGS. 3 and 7 to 11 and described above with respect to the holding frame 1 . In the inserted state of the contact insert 30 , the locking sections 8 of the two locking elements 5 engage in the first position of the locking element 5 to the locking respectively formed in the two end walls 24 , 24 ′ of the housing part 22 . in recess 26, as this is shown in Figure 6 for the holding frame.

Claims (16)

1. Holding frame (1) for a plug connector for accommodating a plurality of contact inserts, having two side walls (2, 2 ') which are opposite to each other and two end walls (3, 3') which are also opposite to each other, wherein the two end walls (3, 3 ') are arranged perpendicular to the side walls (2, 2'), and wherein flange sections (4, 4 ') are arranged on each of the two end walls (3, 3'),

it is characterized in that the preparation method is characterized in that,

a locking element (5) and a spring element (6) are arranged on at least one flange section (4, 4'),

the locking element (5) has a base body (7) with a locking section (8) and an actuating section (9),

the locking element (5) is fixed to the flange section (4, 4') by means of a spring element (6) and

the spring element (6) exerts a spring force on the locking element (5), wherein the locking element (5) is pivotable against the spring force of the spring element (6) from a first position to a second position.

2. The holding frame (1) according to claim 1, characterized in that a recess (10) is configured in the at least one flange section (4, 4'), in which recess a locking element (5) and a spring element (6) are at least partially arranged.

3. The holding frame (1) according to claim 1 or 2, characterized in that a receiving region (11) is formed in the base body (7) of the locking element (5), in which receiving region an intermediate section (12) of the spring element (6) is arranged.

4. The holding frame (1) according to claims 2 and 3, characterized in that the locking element (5) is arranged in the recess (10) in the flange section (4, 4') and the receiving region (11) is arranged in the base body (7) of the locking element (5) in such a way that the axis of rotation (D) of the locking element (5) and the longitudinal axis (L) of the middle section (12) of the spring element (6) are offset from one another both horizontally and vertically.

5. The holding frame (1) according to any one of claims 1 to 4, characterised in that the spring element (6) has a U-shaped central section (13) with a U-shaped back (14) and two U-shaped arms (15) and two end sections (16) which are connected to the U-shaped arms (15), respectively.

6. The holding frame (1) according to claim 5, characterised in that the two end sections (16) of the spring element (6) are biased in the direction of the end walls (3, 3') of the holding frame (1) relative to the plane of the U-shaped central section (13).

7. The holding frame (1) according to claim 5 or 6, characterised in that the two end sections (16) of the spring element (6) are bent outwards from the central section (13) of the U-shape.

8. The holding frame (1) according to one of claims 3 to 7, characterised in that a ramp (17) is formed on the base body (7) of the locking element (5), which ramp is arranged between the receiving region (11) for the middle section (12) of the spring element (6) and the locking section (8).

9. The holding frame (1) according to one of claims 1 to 8, characterised in that the actuating section (9) is configured as a handle section (18) or a receptacle (19) for a tool is arranged in the actuating section (9) of the locking element (5).

10. The holding frame (1) according to one of claims 1 to 9, characterised in that at least one elastic web (20) is provided on each of the two side walls (2, 2'), and the webs (20) each have a latching mechanism (21) for securing latching projections of a contact insert inserted into the holding frame (1).

11. A contact insert (30) for a plug connector, having an insulating body (31) in which a plurality of contact elements (32) are arranged, wherein flange sections (34, 34 ') are arranged on two mutually opposite end sides (33, 33') of the insulating body (32) in each case,

it is characterized in that the preparation method is characterized in that,

a locking element (5) and a spring element (6) are arranged on at least one flange section (34, 34'),

the locking element (5) has a base body (7) with a locking section (8) and an actuating section (9),

the locking element (5) is fixed to the flange section (34, 34') by means of a spring element (6) and

the spring element (6) exerts a spring force on the locking element (5), wherein the locking element (5) is pivotable against the spring force of the spring element (6) from a first position to a second position.

12. The contact insert (1) according to claim 11, characterized in that a recess (35) is formed in the at least one flange section (34, 34'), in which recess the locking element (5) and the spring element (6) are arranged at least partially.

13. The contact insert (1) according to claim 11 or 12, characterized in that a receiving region (11) is formed in the base body (7) of the locking element (5), in which receiving region the middle section (12) of the spring element (6) is arranged.

14. The contact insert (1) according to claims 12 and 13, characterized in that the locking element (5) is arranged in the recess (35) in the flange section (34, 34') and the receiving region (11) is arranged in the base body (7) of the locking element (5) in such a way that the axis of rotation (D) of the locking element (5) and the longitudinal axis (L) of the middle section (12) of the spring element (6) are offset from one another both horizontally and vertically.

15. Assembly of a holding frame (1) according to one of claims 1 to 10 or a contact insert (30) according to one of claims 11 to 14 and a housing part (22) of a plug connector, wherein the housing part (22) has two side walls (23, 23 ') lying opposite one another, two end walls (24, 24') likewise lying opposite one another and a plurality of bearing sections (25) on which the flange sections (4, 4 ') of the inserted holding frame (1) or the flange sections (34, 34') of the inserted contact insert (30) rest,

it is characterized in that the preparation method is characterized in that,

a locking recess (26) is formed in the inner side of the at least one end wall (24, 24'), into which locking section (8) of the locking element (5) engages in the first position of the locking element (5).

16. Assembly according to claim 15, wherein the spring element (6) has a U-shaped central section (13) and two end sections (16), the central section having a U-shaped back (14) and two U-shaped arms (15), the end sections being connected to the U-shaped arms (15) respectively, wherein the two end sections (16) of the spring element (6) are bent outwards from the U-shaped central section (13), characterized in that a recess (27) for receiving the flange section (4, 4 ') of the holding frame (1) or the flange section (34, 34 ') of the contact insert (30) is formed in the inner side of at least one end wall (24, 24 '), and when the holding frame (1) or the contact insert (30) is inserted into the housing part (22), the two end sections (16) of the spring element (6) bear against the side walls (28) of the recess (27).

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