Mounting housing for installation on a wall with an opening

Abstract

A mounting housing (1) for mounting on a wall (3) having an opening (31), in particular a device or housing wall, and for receiving at least one contact insert (2), is shown and described, with two opposing longitudinal sides (11) and two opposing end faces (12) which together enclose a receiving area (13) for a contact insert (2), wherein the receiving area (13) is open to both the connection side (A) and the opposite plug-in side (S), and with a circumferential flange section (14) which rests against the wall (3) when the mounting housing (1) is mounted. The contact insert (2) can be mounted in the mounting housing (1) particularly easily and flexibly by providing at least one first locking element (16, 17) for locking with a corresponding first counter-locking element (25) of a contact insert (2) and at least one second locking element (18) for locking with a corresponding second counter-locking element (26) of a contact insert (2) on a longitudinal side (11) and / or an end face (12) of the mounting housing (1), wherein the at least one first locking element (16, 17) is designed to secure a contact insert (2) inserted into the mounting housing (1) from the connection side (A), and wherein the at least one second locking element (18) is designed to secure a contact insert (2) inserted into the mounting housing (1) from the plug-in side (S).

Description

[0001] The invention relates to an attachment housing for mounting on a wall having an opening, in particular a device or housing wall, and for receiving at least one contact insert, with two opposing longitudinal sides and two opposing end faces which together enclose a receiving area for a contact insert, wherein the receiving area is open to both the connection side and the opposite plug-in side and has a circumferential flange section which, in the mounted state of the attachment housing, rests against the outside of the wall.

[0002] Furthermore, the invention also relates to an assembly consisting of a corresponding mounting housing and a contact insert, wherein the contact insert has an insulating body in which several contact elements are arranged, wherein the insulating body has two opposing longitudinal sides and two opposing end faces.

[0003] Contact inserts for connectors, in which several contact elements are arranged, serve to be connected to a corresponding mating contact insert located in the housing of a mating connector. The contact elements can be, in particular, contact pins or contact sockets that are connected to corresponding contact elements of the mating contact insert when the contact insert is mated with a corresponding mating contact insert or when the connector is mated with the corresponding mating connector.

[0004] Mounting housings are used to accommodate contact inserts that are to be mounted on a wall, particularly a device or enclosure wall, such as a control cabinet wall. For this purpose, an opening is formed in the wall into which the contact insert can be inserted using the mounting housing. The mounting housing, enclosing the opening, is attached to the wall, and the contact insert is then secured within the mounting housing. The contact elements of the contact insert are connected on the connection side to appropriate wires or a corresponding plug, while on the mating side, the contact insert can be connected to a corresponding mating contact insert located in the housing of a mating connector. The connection side corresponds to the inside and the mating side to the outside of the device, enclosure, or control cabinet.

[0005] In practice, such a surface-mounted enclosure is usually attached to the wall using screws that are inserted into corresponding holes in the wall. Depending on the type of enclosure, it can be inserted into the opening in the enclosure wall either from the outside or the inside before being screwed in place. This ensures a mechanically strong and reliable connection between the enclosure and the wall. However, a disadvantage is that the installation process is relatively complex and the associated installation time is relatively long.

[0006] From DE 10 2010 017 361 A1, a surface-mount connector is known, consisting of a mounting housing and a contact carrier arranged in the mounting housing. The connector can be fixed to the wall by means of two spring-loaded locking elements arranged on the end faces of the mounting housing. The mounting housing has a circumferential flange as an insertion stop, so that the surface-mount connector is attached to the wall by the locking elements extending through the opening in the wall and engaging behind the edge of the opening on the inside when the flange is in contact with the outside of the wall. Since the known surface-mount connector is a pre-assembled connector, it is not possible to replace or subsequently install the contact carrier in the mounting housing attached to the wall.

[0007] The present invention therefore aims to provide a mounting housing that enables the simplest and most flexible possible installation of a contact insert. The installation of the contact insert should preferably be tool-free. Furthermore, an assembly consisting of a suitable mounting housing and a contact insert should be created in which the mechanical connection between the mounting housing and the contact insert can be achieved as simply as possible.

[0008] This problem is solved in the mounting housing according to the invention with the features of claim 1. In the mounting housing according to the invention, at least one first locking element for locking with a corresponding first counter-locking element of a contact insert and at least one second locking element for locking with a corresponding second counter-locking element of a contact insert are arranged on a longitudinal side and / or on an end face of the mounting housing. The at least one first locking element is designed to secure a contact insert inserted into the receiving area of ​​the mounting housing from the connection side, while the at least one second locking element is designed to secure a contact insert inserted into the receiving area of ​​the mounting housing from the plug-in side.Accordingly, the first locking element and the second locking element are each arranged on the inside of a longitudinal side facing the receiving area and / or on an end face of the mounting housing.

[0009] The design of at least one first locking element and at least one second locking element, each interacting with corresponding counter-locking elements of the contact insert, enables simple, and in particular tool-free, mounting of the contact insert in the mounting housing. Furthermore, the different designs of the first and second locking elements allow for mounting a contact insert into the mounting housing from both the connection side and the plug-in side, i.e., from both the inside and the outside of the device or housing wall.

[0010] Preferably, both two first locking elements and two second locking elements are formed on the mounting housing, thereby ensuring secure fixation of a contact insert within the mounting housing. Furthermore, the two first locking elements and the two second locking elements are preferably formed on opposite sides of the mounting housing, for example, the two first locking elements on the two longitudinal sides and the two second locking elements on the two end faces. It is generally assumed hereafter that two first locking elements and two second locking elements are formed on the mounting housing, even though the invention is not limited to this. In addition to the possibility of only one first locking element or only one second locking element being provided, more than two first locking elements and two second locking elements can also be formed on the mounting housing.

[0011] According to a further advantageous embodiment, the at least one first locking element has a stop for a contact insert inserted into the mounting housing from the plug-in side. Similarly, the at least one second locking element preferably also has a stop for a contact insert inserted into the mounting housing from the connection side. The first and second locking elements thus each have a different function, depending on whether a contact insert is inserted into the mounting housing from the connection side or from the plug-in side.

[0012] When a contact insert is inserted into the mounting housing from the connection side, the second set of locking elements acts as a stop during insertion, while the first set of locking elements, together with the corresponding first set of locking elements on the contact insert, ensure that the inserted contact insert cannot be pulled out of the mounting housing from the connection side in the opposite direction. Conversely, when a contact insert is inserted into the mounting housing from the plug side, the first set of locking elements acts as a stop during insertion, while the second set of locking elements, together with the corresponding second set of locking elements on the contact insert, ensure that the inserted contact insert cannot be pulled out of the mounting housing from the plug side in the opposite direction.

[0013] When inserting a contact insert from the connection side, the first locking elements serve to secure the contact insert, while when inserting a contact insert from the plug-in side, the first locking elements serve as a stop for the contact insert. Similarly, when inserting a contact insert from the plug-in side, the second locking elements serve to secure the contact insert, while when inserting a contact insert from the connection side, the second locking elements serve as a stop for the contact insert.

[0014] There are various possibilities regarding the specific design of the first and second locking elements. According to a preferred embodiment, the first locking elements are each designed as a spring-loaded locking arm with a base and a locking lug, the base being connected to a longitudinal side or an end face of the mounting housing. The locking arms are arranged such that the locking lug is located closer to the flange section than the base. The extension of the locking arm from the base to the locking lug then runs opposite to the insertion direction of a contact insert from the terminal side into the mounting housing. When a contact insert is inserted from the terminal side into the mounting housing, the contact insert initially slides along the locking lug with its first counter-locking element before the locking lug engages with the counter-locking element.

[0015] If the first locking elements are designed as spring-loaded locking arms, the back side of the locking lug, which runs essentially perpendicular to the longitudinal extent of the locking arm, is preferably designed as a stop for a contact insert inserted into the mounting housing from the plug-in side. The back side of the locking lug thus serves, on the one hand, to engage with a corresponding counter-locking element of a contact insert inserted from the connection side, and on the other hand, as a stop when the contact insert is inserted from the plug-in side. The position of the back side of the locking lug determines how deeply the contact insert can be inserted from the plug-in side into the receiving area of ​​the mounting housing.

[0016] According to another preferred embodiment, the first locking elements are each designed as a spring-loaded locking tab, having a base and a free end, the base being connected to a longitudinal side or an end face of the mounting housing. The locking tab is arranged such that the base is closer to the flange section than the free end of the locking tab. The extension of the locking tab from the base to the free end then runs in the insertion direction of a contact insert from the connection side into the mounting housing. In this embodiment of the first locking element, the extension is thus opposite to the extension of a locking element designed as a spring-loaded locking arm.

[0017] If the first locking elements are designed as locking tabs, the free end of the locking tab acts as a stop for a contact insert inserted into the mounting housing from the plug-in side. In this configuration, the free end of the locking tab serves both to engage with a corresponding counter-locking element of a contact insert inserted from the connection side and to act as a stop when inserting the contact insert from the plug-in side. The position of the free end of the locking tab then determines how deeply the contact insert can be inserted from the plug-in side into the receiving area of ​​the mounting housing.

[0018] Regardless of whether the first locking elements are designed as a spring-loaded locking arm or as a spring-loaded locking tab, the locking elements can easily fulfill both the function of locking when inserting a contact insert from the connection side and the function of acting as a stop when inserting a contact insert from the plug-in side, without the locking elements having a complex shape to manufacture.

[0019] According to an advantageous embodiment, the second locking elements are each formed as a recess in a longitudinal side or an end face of the mounting housing, wherein the recess has at least one edge extending substantially perpendicular to the insertion direction of a contact insert, which serves as a locking edge for a corresponding second counter-locking element of a contact insert. If two second locking elements are formed on the mounting housing, a corresponding recess is preferably formed in each of the two opposing end faces or in each of the two opposing longitudinal sides.

[0020] Designing the second locking element as a recess with an edge has the advantage that the edge of the recess can also serve as a stop for a contact insert inserted into the mounting housing from the connection side. This allows the second locking element to easily fulfill both the function of locking when a contact insert is inserted from the plug-in side and the function of acting as a stop when a contact insert is inserted from the connection side.

[0021] The mounting of the enclosure to a wall can generally be achieved – as is known in practice – with screws that are screwed through openings in the flange of the enclosure into corresponding holes in the wall. However, according to a preferred embodiment, the enclosure has at least two fastening elements for fixing it to the wall, with the fastening elements extending beyond the flange section.

[0022] According to a particularly preferred embodiment, the fastening elements are designed as snap-fit ​​tabs, enabling tool-free attachment of the mounting housing to the wall or in the wall opening by inserting the snap-fit ​​tabs into the opening and engaging behind the edge of the opening. Preferably, each snap-fit ​​tab has an actuating section to allow it to be moved from a first position to a second position, whereby the mounting housing is locked in the opening in the first position and, in the second position, the lock is released and the mounting housing can be removed from the opening.

[0023] Regarding the fastening elements designed as locking tabs, it has been previously stated that these can be moved from a first position to a second position. Once the mounting housing is inserted into the opening in the wall, it can be locked in the opening by pivoting the locking tabs into their first position, or by ensuring they are already in their first position. A pivotable arrangement of a locking tab on the mounting housing can be achieved by mounting the locking tab pivotably around a bearing pin extending transversely to the insertion direction on an end face or a longitudinal side of the mounting housing.

[0024] According to a preferred embodiment, the locking tabs are formed integrally with the corresponding end face or longitudinal side of the mounting housing. The locking tabs are designed as spring-loaded locking tabs, the base of which is connected to one side of the mounting housing and the free end of which has at least one locking lug. The spring-loaded locking tabs are arranged on one side of the mounting housing such that, when the mounting housing is inserted into the opening, they are initially deflected towards the receiving area and then spring back to their first position when the mounting housing has reached its defined end position, i.e., when the flange section rests against the outside of the wall. The locking lugs of the locking tabs then engage behind the edge of the opening, thereby securely locking the mounting housing into the opening in the wall.The locking tabs do not need to be actively moved into their first position by the user, so that the locking mechanism engages automatically when the mounting housing is inserted into the opening in the wall.

[0025] By means of the actuating section preferably formed on the locking tabs, which may, for example, be a recess for inserting a tool, the locking tab can be moved from the first position to a second position when the mounting housing is to be removed from the opening in the wall. The locking tabs or their locking lugs can be designed such that the locking tab cannot be unlocked when a contact insert is inserted into the mounting housing. For this purpose, a projection can be formed on the back of the locking lug that interacts with the opposite end face of an inserted contact insert, so that the locking tab cannot be deflected so far when the contact insert is inserted that the locking lug becomes disengaged from the edge of the opening.

[0026] According to a further preferred embodiment, a groove is formed in the flange section in which a seal is arranged, sealing the mounting housing against the wall in the assembled state. The groove is designed such that the seal is compressed to a defined extent in the assembled state, whereby the depth of the groove is less than the corresponding thickness of the seal. This defined groove depth simultaneously ensures that the seal is not compressed too much, thus preventing damage to the seal. Furthermore, the outer wall of the groove protects the seal from external influences, allowing the use of a relatively soft seal.

[0027] To facilitate the insertion of a contact insert into the mounting housing, guide ribs or guide grooves projecting into the receiving area can be formed on the longitudinal sides or end faces of the mounting housing to engage with corresponding grooves or ribs of a contact insert.

[0028] The aforementioned problem is solved in an assembly consisting of an attachment housing according to the invention and at least one contact insert with the features of claim 14. At least one first locking element for engaging with the corresponding first locking element of the attachment housing and at least one second locking element for engaging with the corresponding second locking element of the attachment housing are formed on the insulating body of the contact insert. The at least one first locking element engages with the first locking element when the contact insert is inserted into the attachment housing from the connection side, while the at least one second locking element engages with the first locking element of the attachment housing when the contact insert is inserted into the attachment housing from the plug-in side.

[0029] As previously explained in connection with the mounting housing according to the invention, the assembly also benefits from the design of at least one first locking element and at least one second locking element, each interacting with corresponding locking elements of the mounting housing, enabling simple, and in particular tool-free, fastening of the contact insert in the mounting housing. Furthermore, the different designs of the first and second locking elements allow for the mounting of a contact insert into the mounting housing from both the connection side and the plug-in side.

[0030] If the mounting housing has two first locking elements and two second locking elements, the contact insert also has two first counter-locking elements and two second counter-locking elements, which are preferably formed on opposite sides of the insulating body, for example the two first counter-locking elements on the two longitudinal sides and the two second counter-locking elements on the two end faces of the insulating body.

[0031] If the at least one first locking element of the mounting housing is designed as a locking arm or a locking tab, the at least one first counter-locking element of the contact insert is preferably designed as a shoulder on the insulating body. When the contact insert is fully inserted into the mounting housing from the connection side, the locking lug of the locking arm or the free end of the locking tab engages with the shoulder on the insulating body, thereby fixing the contact insert in the mounting housing. Preferably, the shoulder is designed and arranged on the insulating body such that it rests against a stop formed on the locking arm, in particular the back of the locking lug, when the contact insert is inserted into the mounting housing from the plug-in side.

[0032] If the at least one second locking element of the mounting housing is designed as a recess, then the at least one second counter-locking element of the contact insert is preferably designed as a locking element on the corresponding side of the insulating body. For example, if the mounting housing has a recess on each of its two end faces, then a locking element is provided on each of the two end faces of the insulating body of the contact insert. Preferably, the locking element is designed such that a section of the locking element rests against a stop of the second locking element of the mounting housing when the contact insert is inserted into the mounting housing from the connection side.

[0033] Preferably, the locking elements of the contact insert are each designed as a spring-loaded locking arm, which has a base and at least one locking lug, the base being connected to the insulating body. The spring-loaded locking arms are arranged on the end face or the longitudinal side of the insulating body such that, when the contact insert is inserted into the mounting housing, they are initially deflected to the corresponding side and then spring back to their first position when the contact insert has reached its defined end position. The locking lugs of the locking arms then engage in the corresponding recesses in the opposite sides of the mounting housing, thereby securely locking the contact insert in the mounting housing.

[0034] To remove a contact insert from the mounting housing, the locking elements must be moved from their first position to their second position, the removal position. In the second position, the locking lugs of the locking elements do not engage in the recesses in the mounting housing, allowing the contact insert to be easily removed. To further simplify removal, the locking elements preferably each have an actuating section to move the locking element from the first to the second position. Preferably, the actuating section is designed as a receptacle for a tool, such as the tip of a screwdriver. The locking element can then be easily pivoted from the first to the second position by inserting the tip of the tool into the receptacle and then pivoting the tool.The shape of the mount determines whether the locking element can be pivoted with a conventional screwdriver or only with a special tool.

[0035] According to a particularly preferred embodiment of the contact insert, in which the detent elements are designed as spring-loaded detent arms, the detent arms each have two detent lugs that are slightly spaced apart from each other. The actuating section, designed as a receptacle for a tool, is formed between the two detent lugs, so that the detent lugs simultaneously serve as a guide for the tip of the tool when the tool is inserted into the receptacle.

[0036] In detail, there are several ways to design and further develop the mounting housing according to the invention and the assembly consisting of a mounting housing and at least one contact insert. Reference is made to the dependent claims and the following description of preferred embodiments in conjunction with the drawing. The drawing shows: Fig. 1 a perspective view of an exemplary embodiment of an add-on housing, Fig. 2 the mounting housing according to Fig. 1, inserted into an opening in a wall, in perspective view, from the connection side, and in longitudinal section, Fig. 3 the mounting housing with a contact insert to be inserted from the connection side, in perspective view, Fig. 4 the mounting housing with a contact insert to be inserted from the plug-in side, in perspective view, Fig. 5 the mounting housing with inserted contact insert, in longitudinal section and in cross section, Fig. 6 the mounting housing with inserted contact insert, in perspective view from the connection side and from the plug-in side, and Fig. 7 A perspective view of an add-on housing inserted into an opening in a wall with a mating connector attached to the add-on housing.

[0037] Fig. Figure 1 shows a perspective view of a mounting housing 1, which is intended for mounting on a wall 30 having an opening 31, for example, a control cabinet wall or equipment wall. The mounting housing 1 also serves to receive a contact insert 2, so that the contact insert 2 can be attached to the opening 31 of the wall 3 using the mounting housing 1. A mounting housing 1 installed in an opening 31 of a wall 3 and receiving a contact insert 2 is shown in Fig. 5a and Fig. 5b is shown from two different perspectives.

[0038] The mounting housing 1 has two opposing longitudinal sides 11 and two opposing end faces 12, which together enclose a receiving area 13 for a contact insert 2. In the illustrated embodiments, the receiving area 13 of the mounting housing 1 is rectangular, and a fixed-pole contact insert 2, with outer dimensions corresponding to the receiving area 13, can be inserted into it. Alternatively, the mounting housing 1 and / or the contact insert 2 can also be designed such that several contact inserts can be inserted into the receiving area 13 of the mounting housing 1. The dimensions of the mounting housing 1 and the contact insert 2 can therefore differ from those shown in the illustrated embodiments.For example, the length of the longitudinal sides 11 of the mounting housing 1 can be shorter and the length of the end faces 12 longer than in the illustrated embodiment. It is also possible that the length of the end faces 12 corresponds to or even exceeds the length of the longitudinal sides 11.

[0039] In addition to the longitudinal sides 11 and the end faces 12, the mounting housing 1 has a circumferential flange section 14 which, when the mounting housing 1 is installed, rests against one side of the wall 3. In the illustrated embodiments, the mounting housing 1 is designed such that, when the mounting housing 1 is installed, the flange section 14 rests against the outside of the wall 3. The outside of the wall 3, or of a housing or control cabinet bounded by the wall, corresponds to the plug-in side S, and the opposite inside of the wall 3 corresponds to the connection side A of the mounting housing 1, or of a contact insert 2 accommodated in the mounting housing 1.

[0040] As can be seen from the two representations according to Fig. 2a and Fig. As can be seen in Figure 2b, a fastening element, designed as a locking tab 15, is arranged on each of the two end faces 12 of the mounting housing 1 to secure it in the opening 31 of a wall 3. The locking tabs 15 each have a base 151 that is connected to an end face 12 of the mounting housing 1. A locking lug 152 is formed at the free end of each locking tab 15, which extends beyond the flange section 14. This lug secures the mounting housing 1 in the opening 31 in the wall 3. When the mounting housing 1 is inserted into the opening 31 in the wall 3 from the plug-in side S, the locking tabs 15 are initially deflected inwards, towards the receiving area 13.If the mounting housing 1 is inserted into the opening 31 to such an extent that the flange section 14 rests against the outside of the wall 3, the locking tabs 15 spring back into their first position, the locking position, and the locking lugs 52 of the locking tabs 15 engage behind the edge 32 of the opening 31, thereby securely locking the mounting housing 1 into the opening 31 in the wall 3.

[0041] Since the locking lugs 152 of the locking tabs 15 have corresponding chamfers, the deflection of the locking tabs 15 described above occurs automatically when the mounting housing 1 is inserted into the opening 31. Due to the spring-like properties of the locking tabs 15, they do not need to be actively moved into their first position by a user, so that the locking of the mounting housing 1 in the opening 31 in the wall 3 occurs automatically when it is inserted into the opening 31.

[0042] To allow the mounting housing 1 to be removed from the opening 31 in the wall 3 when necessary, the locking tabs 15 each have an actuating section 153, which in the illustrated embodiment is designed as a recess in the area of ​​the locking lug 152. The tip of a screwdriver, for example, can then be inserted into the actuating section 153 or the recess in the locking lug 152 from the connection side A, thereby deflecting the corresponding locking tab 15 and thus releasing the locking of the locking lug 152 with the edge 32 of the opening 31.

[0043] As shown in the sectional view according to Fig. As can be seen in Figure 5a, a projection 154 is formed on the back of the locking lug 152, which interacts with the opposite end face 24 of the inserted contact insert 2, so that the locking tab 15 cannot be deflected so far when the contact insert 2 is inserted that the locking lug 152 comes out of engagement with the edge 32 of the opening 31.

[0044] Fig. Figure 3 shows a mounting housing 1 inserted in the opening 31 in a wall 3 with a contact insert 2 on the connection side A, while in Fig. Figure 4 shows the mounting housing 1 with the same contact insert 2, which is now arranged on the plug-in side S. The contact insert 2 has an insulating body 21 in which several contact elements 22 are arranged, which may in particular be contact pins or contact sockets. The insulating body 21 has two opposing longitudinal sides 23 and two opposing end faces 24, wherein the insulating body 21 has a rectangular cross-section, the dimensions of which are adapted to the dimensions of the receiving area 13 of the mounting housing 1.

[0045] To secure a contact insert 2 inserted into the receiving area 13 of the mounting housing 1, first locking elements 16, 17 are arranged on each of the two longitudinal sides 11 of the mounting housing 1, and at least one second locking element 18 is arranged on each of the end faces 12. The first locking elements serve to lock with corresponding first counter-locking elements, and the second locking elements serve to lock with corresponding second counter-locking elements on the contact insert 2. The design of the first and second locking elements enables simple, tool-free mounting of a contact insert 2 in the mounting housing 1. Furthermore, the different design of the first and second locking elements also allows a contact insert 2 to be mounted in the mounting housing 1 from both the connection side A and the plug-in side S. This will be illustrated below. Fig. 3 and Fig. 4 explained.

[0046] Will the contact 2 be used according to Fig. 3 from connection side A in insertion direction E A When inserted into the mounting housing 1, the first locking elements on the longitudinal sides 11, together with the corresponding first counter-locking elements on the contact insert 2, serve to lock the inserted contact insert 2, so that the contact insert 2 cannot be removed again in the opposite direction of insertion E. A can be pulled out of the mounting housing 1 from connection side A.

[0047] If, on the other hand, contact 2 is used according to Fig. 4 from the plug-in side S in the insertion direction E S When inserted into the mounting housing 2, the second locking elements on the end faces 12 of the mounting housing 1, together with the corresponding second counter-locking elements on the end faces 24 of the contact insert 2, serve to lock the inserted contact insert 2, so that the contact insert 2 cannot be inserted again in the opposite direction E.S can be pulled out of the mounting housing 1 from the plug-in side S.

[0048] In the embodiment according to the Fig. 3 and Fig. 4 The first locking elements are designed as spring-loaded locking tabs 17, which have a base 71 and a free end 172, wherein the base 171 is connected to a longitudinal side 11 of the mounting housing 1. The locking tab 17 is arranged such that the base 171 is closer to the flange section 14 than the free end 172 of the locking tab 17. The extension of the locking tab 17 from the base 171 to the free end 172 thus runs in the insertion direction E. A a contact insert 2 from the connection side A. If a contact insert 2 is connected according to Fig. 3 from the connection side A into the mounting housing 1, the free end 172 of the locking tab 17 is first deflected slightly in the direction of the associated longitudinal side 11 by inserting the contact insert 2, before the free end 172 of the locking tab 17 engages the first counter-locking element on the contact insert 2, which is designed as a shoulder 25 on the insulating body 21.

[0049] In this design of the mounting housing 1, the contact insert 2 is used according to Fig. 4 from the plug-in side S in the insertion direction E S When inserted into the receiving area 13 of the mounting housing 1, the second counter-locking elements, designed as locking arms 26 on the end faces 24 of the insulating body 21, engage with recesses 18, which are formed as second locking elements in the end faces 12 of the mounting housing 1. The free ends 172 of the locking tabs 17 serve as a stop when the contact insert 2 is inserted in the insertion direction E. S, wherein, in the assembled state, the shoulders 25 formed on the contact insert 2 rest on the free ends 172 of the locking tabs 17.

[0050] The contact insert 2 has a total of four shoulders 25 arranged in the area of ​​the corners between the longitudinal sides 23 and the end faces 24 as first locking elements and two locking arms 26 arranged on the end faces 24 as second locking elements. Both the shoulders 25 and the locking arms 26 are formed integrally with the insulating body 21. The locking arms 26 each have a foot section 261 connected to an end face 24 and two locking lugs 262 at their free ends. The extension of the locking arms 26 from the foot section 261 to the locking lugs 262 is opposite to the insertion direction E. S from the plug-in side S into the receiving area 13 of the mounting housing 1.

[0051] To enable the removal of a contact insert 2, which has been inserted and locked into the mounting housing 1, from the mounting housing 1, the two locking arms 26 each have an actuating section 263 designed as a receptacle for a tool. If the tip of a tool is inserted into the actuating section 263, the locking arm 26 can simply be pivoted from its locked position into a second position in which the locking lugs 262 no longer engage with the recess 18 in the end face 12 of the mounting housing 2, allowing the contact insert 2 to be removed from the mounting housing 2.

[0052] A slightly different design of an add-on housing 1 is found in the Fig. 2 and Fig. 6 shown. The one in the Fig. 2 and Fig. The mounting housing shown in Figure 5 differs from the one described previously and in the following by a slightly different design of the first locking elements. Fig. 3 and Fig. 4 illustrated mounting housings 1.

[0053] In the embodiment of the mounting housing 1 according to Fig. 2 The first locking element is designed as a spring-loaded locking arm 16, which has a base 161 and a locking lug 162. The base 161 of the locking arm 16 is connected to a longitudinal side 11 of the mounting housing 1, the locking arm 16 being arranged such that the locking lug 162 has a smaller distance to the flange section 14 than the base 161. The longitudinal extent of the locking arm 16 thus runs – as does the longitudinal extent of the locking tab 17 – essentially parallel to the insertion direction E. A of a contact insert 2 from the connection side A. If a contact insert 2 is inserted from the connection side A into the receiving area 13 of the mounting housing 1, the extension of the locking arm 16 from the base area 161 to the locking lug 162 is opposite to the insertion direction E. Aof the contact insert 2. When the contact insert 2 is inserted from the connection side A into the mounting housing 1, the contact insert 1 initially slides with its shoulders 25 along the locking lugs 162 before the locking lugs 162 each engage with a shoulder 25. The rear side 163 of the locking lug 162 engages behind the first counter-locking element on the insulating body 21 of the contact insert 2, which is designed as a shoulder 25.

[0054] If, on the other hand, a contact insert 2 is inserted from the plug-in side S in the insertion direction E S When inserted into the receiving area 13 of the mounting housing 1, the second counter-locking elements, designed as locking arms 26 on the end faces 24 of the contact insert 2, engage with corresponding recesses 18, which are formed as a second locking element in the end faces 12 of the mounting housing 1. The recesses 18 each have a direction substantially perpendicular to the insertion direction E. SThe edge 181 of a contact insert 2 extends along the surface and serves as a detent edge for the detent lugs 262 of the detent arm 26. When a contact insert 2 is inserted from the connection side A into the receiving area 13 of the mounting housing 1, the edge 181 of the recess 18 acts as a stop when inserting the contact insert 2, thus determining the maximum insertion depth.

[0055] From the two sectional views according to the Fig. 5a and Fig. Figure 5b shows the interaction between the locking elements of the mounting housing 1 and the counter-locking elements of the contact insert 2. Fig. 5a shows how the spring-loaded locking arms 26 formed on the two end faces 24 of the insulating body 21 with their locking lugs 262 each lock with the edge 181 of the recess 18 in the end faces 12 of the mounting housing 1, so that a SThe inserted contact insert 2 cannot be pulled out of the mounting housing 1 again in the direction of the plug-in side S. Fig. 5b shows how the spring-loaded locking arms 16 formed on the two longitudinal sides 11 of the mounting housing 1 lock with their locking lug 162 each with a shoulder 25 on the insulating body 21 of the contact insert 2, so that the contact is held in the insertion direction E from the connection side A A The inserted contact insert 2 cannot be pulled out of the mounting housing 1 in the direction of the connection side A.

[0056] The two sectional views also show that a circumferential groove 141 is formed in the flange section 14, in which a seal 4 is arranged, sealing the mounting housing 1 against the wall. The depth of the groove 141 is matched to the thickness of the seal 4 such that the seal 4 is compressed by a defined amount in the assembled state; that is, the depth of the groove 141 is slightly less than the thickness of the seal, while preventing excessive compression and thus damage to the seal 4. The outer wall of the groove 141 also serves to protect the seal 4 from external influences, allowing the use of a relatively soft seal 4.

[0057] From the Fig. Figure 5a also shows that the groove 141 in the flange 14 is formed so far out in the flange section 14 that the seal 4 surrounds the bores 33 formed in the wall 3, so that the bores 33 are also sealed. This has the advantage for a user that they can always produce a standard opening with bores 33 in the wall 3, regardless of whether they use an attachment housing that is screwed to the wall or an attachment housing 1 that, according to the exemplary embodiment, is snapped into the opening 31 by means of the locking tabs 15.

[0058] To facilitate the insertion of a contact insert 2 into the mounting housing 1, guide ribs 121 projecting into the receiving area 13 are formed on the end faces 12 of the mounting housing 1 for engagement with corresponding guide grooves 241 on the end faces 24 of the contact insert 2 (see figure). Fig. 2b and Fig. 3) To simplify the installation of the mounting housing 1 in the opening 31 in the wall 3, several guide pins 19 are formed on the side of the flange section 14 on the mounting housing 1, extending beyond the locking arms 15, as shown in Fig. 5a and Fig. 6a. This allows the ends of the guide bolts 19 to first enter corresponding bores 33 formed in the wall 3, before the locking tabs 15 with their locking lugs 152 engage in the opening 31 in the wall 3. Fig. 5a also shows that the groove 141 in the flange section 14 is positioned so far outwards that the bores 33 in the wall 3 are also enclosed by the seal 4 inserted in the groove 141, thus ensuring the required tightness.

[0059] Fig. 6a and Fig. Figure 6b shows the assembly consisting of the mounting housing 1 and the inserted contact insert 2, mounted in the opening 31 in the wall 3, viewed at an angle from the connection side A ( Fig. 6a) and once diagonally from the plug side S ( Fig. 6b). If the contact insert 2 is inserted into the mounting housing 1 and locked in the receiving area 13, its end faces 24 prevent the locking tabs 15 from deflecting into their second position (removal position), so that the mounting housing 1 cannot be removed from the opening 31 in the wall 3 when the contact insert 2 is inserted.

[0060] Fig.Figure 7 shows a perspective view of an attachment housing 1 inserted into an opening 31 in the wall 3, with a mating connector 5 attached to the attachment housing 1, to which a cable (not shown) may be connected. The mating connector 5 is secured by two locking brackets 6 pivotally mounted on the attachment housing 1, each of which engages two corresponding locking pins 51 on the mating connector 5.

[0061] The illustrated mounting housing 1 thus enables simple, in particular tool-free, mounting in an opening 31 of a wall 3 as well as simple, also tool-free mounting of a contact insert 2 into the mounting housing 1, wherein the contact insert 2 can be inserted into the receiving area 13 of the mounting housing 1 from both the connection side A and the plug-in side S. Reference sign 1 mounting housing 11 Long side 12 Front 121 Guide rib 13 Recording area 14 Flange section 141 Nut 15 Rastlatsche 151 foot area 152 Rastnase 153 Actuation section 154 lead 16 Raster arm 161 foot area 162 Rastnase 163 Back of the locking tab 17 Rastlatsche 171 foot area 172 free ending 18 Exclusion 181 edge 19 guide pins 2 Contact Insert 21 insulating bodies 22 contact elements 23 long sides 24 end faces 241 Guide groove Paragraph 25 26 Raster arm 261 foot area 262 Rastnase 263 Actuation section 3 Wall 31 Opening 32 Rand 33 bore 4 Seal 5 mating connectors 51 locking pins 6 locking bars A connection side S plug side E A Insertion direction E S Insertion direction QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2010 017 361 A1

[0006]

Claims

[1] Mounting housing (1) for mounting on a wall (3) having an opening (31), in particular a device or housing wall, and for receiving at least one contact insert (2), with two opposing longitudinal sides (11) and two opposing end faces (12) which together enclose a receiving area (13) for a contact insert (2), wherein the receiving area (13) is open to both the connection side (A) and the opposite plug-in side (S), and with a circumferential flange section (14) which rests against the wall (3) when the mounting housing (1) is mounted, characterized by , that at least one first locking element (16, 17) for locking with a corresponding first counter-locking element (25) of a contact insert (2) and at least one second locking element (18) for locking with a corresponding second counter-locking element (26) of a contact insert (2) are arranged on a longitudinal side (11) and / or an end face (12) of the mounting housing (1), wherein the at least one first locking element (16, 17) is designed to fix a contact insert (2) inserted into the mounting housing (1) from the connection side (A), and wherein at least one second locking element (18) is designed to fix a contact insert (2) inserted into the mounting housing (1) from the plug-in side (S). [2] Mounting housing (1) according to claim 1, characterized by , that the at least one first locking element (16, 17) has a stop for a contact insert (2) inserted into the mounting housing (1) from the plug-in side (S). [3] Mounting housing (1) according to claim 1 or 2, characterized by , that the at least one second locking element (18) has a stop for a contact insert (2) inserted into the mounting housing (1) from the connection side (A). [4] Mounting housing (1) according to any one of claims 1 to 3, characterized by , that the at least one first locking element is designed as a resilient locking arm (16) having a foot area (161) and a locking lug (162), wherein the foot area (162) is connected to a longitudinal side (11) or an end face (12) of the mounting housing (1) and wherein the locking arm (16) is arranged such that the locking lug (162) has a smaller distance to the flange section (14) than the foot area (161). [5] Mounting housing (1) according to claim 4, characterized by, that the rear side (163) of the locking lug (162), which runs essentially perpendicular to the longitudinal extension of the locking arm (16), is designed as a stop for a contact insert (2) inserted into the mounting housing (1) from the plug-in side (S). [6] Mounting housing (1) according to any one of claims 1 to 3, characterized by , that the at least one first locking element is designed as a spring-loaded locking tab (17) having a foot area (171) and a free end (172), wherein the foot area (171) is connected to a longitudinal side (11) or an end face (12) of the mounting housing (1) and wherein the locking tab (17) is arranged such that the foot area (171) has a smaller distance to the flange section (14) than the free end (172) of the locking tab (17). [7] Mounting housing (1) according to claim 6, characterized by, that the free end (172) of the locking tab (17) is designed as a stop for a contact insert (2) inserted into the mounting housing (1) from the plug-in side (S). [8] Mounting housing (1) according to any one of claims 1 to 7, characterized by , that the at least one second locking element is designed as a recess (18) in a longitudinal side (11) or an end face (12) of the mounting housing (1), wherein the recess (18) has an edge (181) extending substantially perpendicular to the insertion direction of a contact insert (2), which is designed as a locking edge for a corresponding second counter-locking element (26) of a contact insert (2). [9] Mounting housing (1) according to claim 8, characterized by , that the edge (181) of the recess (18) is also designed as a stop for a contact insert (2) inserted into the mounting housing (1) from the connection side (A). [10] Mounting housing (1) according to any one of claims 1 to 9, characterized by, that at least two fastening elements are provided for fixing the mounting housing (1) to the wall (3), wherein the fastening elements extend beyond the flange section (14), and wherein the fastening elements are preferably designed as locking tabs (15), which preferably each have an actuating section (153) to move the locking tab (15) from the first position (locking position) to the second position (removal position). [11] Mounting housing (1) according to any one of claims 1 to 10, characterized by , that a groove (141) is formed in the flange section (14) in which a seal (4) is arranged. [12] Mounting housing (1) according to any one of claims 1 to 11, characterized by , that guide ribs (121) or guide grooves for engagement with corresponding guide grooves (241) or ribs of a contact insert (2) are formed on the longitudinal sides (11) or on the end faces (12). [13] Mounting housing (1) according to any one of claims 1 to 12, characterized by , that several guide pins (19) are formed on the mounting housing (1) which extend beyond the fastening elements (15). [14] Assembly comprising an attachment housing (1) according to one of claims 1 to 13 and a contact insert (2), wherein the contact insert (2) has an insulating body (21) in which several contact elements (22) are arranged, wherein the insulating body (21) has two opposing longitudinal sides (23) and two opposing end faces (24), characterized by , that at least one first locking element (25) for locking with the corresponding first locking element (16, 17) of the mounting housing (1) and at least one second locking element (26) for locking with the corresponding second locking element (18) of the mounting housing (1) is formed on the insulating body (21), wherein the at least one first locking element (25) engages with the first locking element (16, 17) of the mounting housing (1) when the contact insert (2) is inserted into the mounting housing (1) from the connection side (A), and wherein the at least one second locking element (26) engages with the first locking element (18) of the mounting housing (1) when the contact insert (2) is inserted into the mounting housing (1) from the plug-in side (S). [15] Assembly according to claim 14, wherein the at least one first locking element of the mounting housing (1) is designed as a locking arm (16) or as a locking tab (17), characterized by , that the at least one first counter-locking element of the contact insert (2) is formed as a shoulder (25) on the insulating body (21). [16] Assembly according to claim 14 or 15, wherein the at least one second locking element of the mounting housing (1) is designed as a recess (18), characterized by, that the at least one second counter-locking element of the contact insert (2) is designed as a locking arm (26) on a longitudinal side (23) or an end face (24) of the insulating body (21) of the contact insert (2). [17] Assembly according to claim 16, characterized by , that the at least one locking arm (26) of the contact insert (2) is designed as a spring-loaded locking arm (26) which has a foot area (261) and at least one locking lug (262), wherein the foot area (261) is connected to the insulating body (21). [18] Assembly according to claim 17, characterized by , that the at least one spring-loaded locking arm (26) of the contact insert (2) has an actuating section (263) to move the locking arm (26) from the first position (locking position) to the second position (removal position). [19] Assembly according to one of claims 14 to 18, wherein the at least one first locking element (16, 17) of the mounting housing (1) has a stop for a contact insert (2) inserted into the mounting housing (1) from the plug-in side (S), characterized by , that the at least one step (25) on the insulating body (21) of the contact insert (2) is designed such that the step (25) rests against the stop of the first locking element (16, 17) of the mounting housing (1) when the contact insert (2) is inserted into the mounting housing (1) from the plug-in side (S). [20] Assembly according to one of claims 14 to 19, wherein the at least one second locking element (18) of the mounting housing (1) has a stop for a contact insert (2) inserted into the mounting housing (1) from the connection side (A), characterized by, that the locking arm (26) on the insulating body (21) of the contact insert (2) is designed such that a section of the locking arm (26) rests against the stop of the second locking element (18) of the mounting housing (1) when the contact insert (2) is inserted into the mounting housing (1) from the connection side (A).

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