Built-in plug-in connector and housing tank

Abstract

The invention relates to a built-in plug-in connector and a housing pot, the built-in plug-in connector (2) comprising at least one contact element (9), a contact element carrier (7) and a housing pot (1), the at least one contact element (9) being received by the contact element carrier (7) and thus fixed in the built-in plug-in connector (2), the contact element carrier (7) is at least partially inserted into a housing pot (1) made of a material having a Shore A hardness in the range of 60 to 100.

Description

Technical Field

[0001] The invention relates to an internal plug-in connector which is provided for a (particularly mechanically lockable) plug-in connection with a cable plug-in connector which matches the internal plug-in connector as a counterpart and can be inserted into an opening of the internal plug-in connector. Background Art

[0002] Built-in plug-in connectors with a multi-component design are known from the prior art. Here, contact pins (often also referred to as pins or foils) are pushed into a contact carrier, which, in addition to receiving and orienting the contact pins, has the function, in particular, of providing an interior space into which a cable plug-in connector for establishing contact with the contact pins is inserted. Furthermore, the interior space can have elements for locking the cable plug-in connector. Furthermore, in a specific embodiment of a built-in plug-in connector of this type, the contact carrier provides a connection flange, through the mounting holes of which a screw for screwing the built-in plug-in connector to a mounting plate can be guided.

[0003] The contact carrier is pushed into the built-in plug-in connector housing, and parts of the contact pins are pushed out of the built-in plug-in connector housing through openings provided specifically for this purpose. These parts of the contact pins that protrude from the housing are then each connected, for example, via terminals provided specifically for this purpose, to a wiring harness of a cable, for example a wiring harness of a power cable, which provides signals, for example power signals, for transmission via the plug-in connection of the built-in plug-in connector and the cable plug-in connector.

[0004] In the case of built-in plug-in connectors of the prior art, the built-in plug-in connector housing is made of a hard, non-elastic material (e.g. a relatively hard thermoplastic), and therefore this relatively hard housing does not press tightly against the contact pins pushed out through the housing opening. As a result, such a press fit between the built-in plug-in connector housing of the prior art and the corresponding contact pins is leaky / permeable to dust, water and / or air.

[0005] This type of leakage between housing and contact pins is a problem, in particular, in the case of applications of the built-in plug-in connector in outdoor areas (e.g. loudspeaker boxes at open-air festivals). Rainfall can occur here at any time, for example, and moisture can penetrate into the built-in plug-in connector if the cable plug-in connector is not plugged in and a sealing cover is not placed over it for temporarily closing and sealing the interior of the built-in plug-in connector. The penetrating moisture can then flow to the press-fit between the built-in plug-in connector housing and the contact pins and can collect there. Since, as already mentioned, this press-fit is not tight, in particular with respect to water, due to the relatively hard housing material, there is a risk in the case of the built-in plug-in connector of the prior art that moisture can penetrate further into the unit and thus lead to a short circuit, which can damage the unit and in the worst case could injure bystanders.

[0006] The prior art built-in plug-in connectors solve the above-mentioned problems, since the contact points of the contact pins with the housing are sealed, and in addition are sealed by sealing means such as adhesives, sealing pastes, sealing rings (e.g. O-rings) etc. However, here, disadvantages of the prior art built-in plug-in connector housings or built-in plug-in connectors are shown, since these additional components / sealing materials firstly lead to additional costs (e.g. material procurement costs, additional machines / employees) and secondly to additional workload due to, for example, further work steps. Thus, for example, before assembling the built-in plug-in connector by plugging together the built-in plug-in connector housing, the contact carrier and the contact pins, corresponding sealing rings must be inserted / plugged in, or an adhesive that is still liquid must be applied.

[0007] Purpose of the Invention

[0008] It is therefore an object of the present invention to provide a built-in plug-in connector and a built-in plug-in connector housing which overcome the disadvantages of the prior art, in particular in view of the stringent requirements with regard to safety and installation dimensions determined worldwide.

[0009] Another object is to provide a built-in plug-in connector and a built-in plug-in connector housing in the case of which the production of seals against dust, air and / or water is simplified, thus making application in outdoor areas possible without additional effort, reducing the risk of short circuits and / or complying with certain standards.

[0010] These objects are achieved by realizing at least some of the features of the independent patent claims. Features that develop the invention in an alternative or advantageous manner can be inferred from some of the remaining features of the independent patent claims and the dependent patent claims. Summary of the invention

[0011] The invention relates to a built-in plug-in connector for achieving a plug-in connection, in particular a mechanically lockable plug-in connection, with a cable plug-in connector, the cable plug-in connector matching the built-in plug-in connection as a counterpart and being insertable into an opening of the built-in plug-in connector, signal transmission, in particular signal transmission of current supply signals, digital signals or analog signals, is achieved by achieving the plug-in connection between the built-in plug-in connector and the cable plug-in connector, the built-in plug-in connector being arranged to be fastened to a mounting plate. The built-in plug-in connector comprises:

[0012] at least one (signal transmission) contact element, which is arranged to come into contact with a (signal transmission) contact element counterpart on the cable plug-in connector side by achieving a plug-in connection and thus provides a signal transmission via the plug-in connection,

[0013] a contact element carrier, which provides an opening of the built-in plug-in connector (hereinafter referred to as insertion opening), which opening is provided for inserting the cable plug-in connector, the at least one contact element being received by the contact element carrier and thus fixed in the built-in plug-in connector, and

[0014] a pot-shaped built-in plug-in connector housing, referred to hereinafter as housing pot, into which the contact element is at least partially inserted,

[0015] The housing can is made of a material having a Shore A hardness in the range of 60 to 100.

[0016] In an exemplary embodiment of the built-in plug-in connector according to the invention, the housing tank is made of a material with a Shore A hardness in the range of 65 to 95, in particular in the range of 75 to 95. When selecting the hardness of the material and / or selecting the composition of the components that provide the hardness of the material, aspects of tightness and machinability must be taken into account. That is, if the material is selected to be too hard, although the machinability is simplified (in particular by an injection molding method), the sealing effect is reduced. In the case of an overly soft material, although the sealing effect is very satisfactory, fine structures such as sealing lips are difficult to manufacture (for example, it is almost impossible to produce undercuts using an injection molding method). In particular, in the case of a Shore A hardness in the range of 65 to 95, the tightness and machinability of the housing tank are ensured.

[0017] In an exemplary embodiment of the built-in plug-in connector according to the invention, the material consists at least predominantly of plastic.

[0018] The material of the housing pot can therefore consist, for example, of at least 60%, in particular at least 80%, of plastic, additives such as plasticizers or flame retardants added to the plastic. In particular for built-in plug-in connectors of the powerCON (powerCON socket) type from Neutrik AG, Liechtenstein (also known as Neutrik Group), it is important that the material of the housing pot is flame retardant, for example by adding flame retardants to the material of the housing pot.

[0019] In another embodiment of the built-in plug-in connector according to the invention, the plastic is a thermoplastic (or a thermoplastic elastomer), in particular one of the following thermoplastics:

[0020] Polypropylene,

[0021] Polyethylene,

[0022] Polyurethanes (e.g. "thermoplastic polyurethanes"),

[0023] Other thermoplastic elastomers (e.g., styrene-ethylene-butylene-styrene (SEBS)), or

[0024] Polystyrene.

[0025] In another embodiment of the built-in plug-in connector according to the invention, the housing pot has:

[0026] a housing shell, which is in particular cylindrical (the housing shell extends around a central axis of the housing pot, which in particular corresponds to the longitudinal axis of the housing pot),

[0027] an insertion-side end (which forms the top surface), in which extends an insertion opening (for the contact element carrier) through which the contact element carrier is at least partially inserted into the housing pot (in the axial direction of the center axis), and

[0028] a housing bottom (which is in particular circular and forms the base surface), in which at least one (contact element) ejection opening extends, through which the contact element is at least partially (in the axial direction of the center axis) ejected out of the housing pot (the housing interior being delimited at least by the housing cover and the housing bottom).

[0029] The axial direction of the center axis of the housing pot is understood to mean the direction in which the center axis extends from the insertion-side end of the housing (top surface) toward the housing bottom (base surface). This direction also corresponds in particular to the insertion direction of the contact element carrier in the housing pot and to the insertion direction of the cable plug-in connector in the contact element carrier (or the insertion direction of the cable plug-in connector in the built-in plug-in connector).

[0030] Here, at least one contact element is received by the contact element carrier, for example, so that a first partial area of ​​the contact element is inserted into the contact element carrier and fixed there, for example by interlocking, clamping or adhesive bonding, while a second partial area of ​​the contact element protrudes from an end piece of the contact element carrier, which is inserted into the housing pot through the insertion opening. Due to the extent to which the contact element carrier is inserted into the housing pot, the end piece is pressed against the housing bottom, so that the second part of the contact element protruding from the end piece is pushed out of the housing pot through the push-out opening. Therefore, it can also be said that at least one contact element is at least partially received by the contact element carrier and is therefore at least partially fixed in the built-in plug-in connector.

[0031] In another embodiment of the built-in plug-in connector according to the invention,

[0032] the at least one ejection opening has a geometry that corresponds at least to a large extent to the geometry of a cross-sectional area of ​​the at least one contact element extending through the at least one contact element orthogonally with respect to the longitudinal axis (“at least to a large extent” here means that the corresponding shapes are in principle identical, but, for example, the angles may differ within a single-digit angle range or the sides of the shape may be slightly curved inwards or outwards),

[0033] The at least one ejection opening extends in the housing base and has an area which is smaller than or equal to the cross-sectional area of ​​the at least one contact element, and / or

[0034] The at least one push-out opening has a region of the contact element (extending around the at least one push-out opening and) extending into the at least one push-out opening (over the entire thickness of the housing bottom) (in other words, an inner region of the push-out opening), through which the contact element is at least partially pushed, so that a press fit is formed over the entire thickness of the housing bottom between said region and the contact element at least partially pushed through the at least one push-out opening (after all, since a first partial region of the contact element is fixed in the contact element carrier, only a second partial region of the contact element is pushed through the push-out opening), in particular wherein:

[0035] o the region extending into the at least one ejection opening is not opened by the ejected contact element (in the axial direction of the center axis),

[0036] o the thickness of the housing bottom is in the range of 0.5 mm to 3 mm, in particular 1.5 mm to 2 mm, and / or

[0037] o The press fit (between the region extending into the at least one ejection opening and the contact element pushed through the at least one ejection opening) is impermeable to water and / or air (in the direction from the housing interior towards the outside of the housing pot and in the direction from the outside of the housing pot towards the housing interior).

[0038] The construction of the built-in plug-in connector according to the invention with a housing pot made of a softer, more elastic material than is the case with the built-in plug-in connectors of the prior art has the advantage that the housing pot and the at least one push-out opening can be manufactured with such dimensions that, firstly, the housing pot is pressed tightly against the contact element during the insertion of a contact element carrier made of hard plastic (e.g., a harder thermoplastic) and, secondly, the at least one push-out opening is pressed tightly against the contact element guided through it. In other words, the area of ​​the push-out opening is slightly smaller than the cross-sectional area of ​​the part of the contact element that is pushed out of the housing pot through the push-out opening, with the result that the push-out opening is enlarged during the ejection of the contact element, for which a certain force must be applied. The area extending into the push-out opening then pushes on the contact element with this force that resists this enlargement, so that a so-called press fit is formed between the push-out openings in the contact element. Since the housing pot of the built-in plug-in connector according to the invention is made of a softer, more elastic material (e.g., comparable to rubber), it can firstly be enlarged more simply and, secondly, can be pressed tightly against the contact element in an improved manner. In this way, the press fit between the soft, elastic housing pot and the harder, non-elastic contact element is impermeable to dust, water and / or air, so that the entire built-in plug-in connector is dust-proof, water-tight and / or air-tight in the built-in state even if one forgets to pull the sealing cover over the insertion opening of the built-in plug-in connector, for example in the event of rain, and water has been able to enter the built-in plug-in connector.

[0039] Due to the watertight and / or gastight press fit between the soft elastic housing pot and the at least one contact element, the built-in plug-in connector with the housing pot according to the invention can also achieve the IP 65 and / or IP 67 standard even without the sealing cover placed or without the cable plug-in connector inserted, without the need to use additional components / sealing materials for this purpose (e.g. liquid sealants that harden after application). Therefore, with the built-in plug-in connector according to the invention, firstly additional costs (e.g. material procurement costs, additional machines / employees) and secondly additional effort due to, for example, further work steps can be saved. Therefore, these additional costs / work steps do not occur in the case of the built-in plug-in connector according to the invention, because no further sealing is required due to the watertight and / or gastight press fit, thus overcoming the disadvantages of the prior art.

[0040] The use of thermoplastics (or thermoplastic elastomers) as the main component of the soft material has the advantage, in particular, that the housing pot can be produced by injection molding, pressing or vulcanization and that the housing has an insulating effect on electric current.

[0041] As already described, in particular, the three push-out openings at the bottom of the housing are particularly sensitive locations of the housing can, in the case of which leakage often occurs. As already described, in the case of the built-in plug-in connector housing of the prior art, which usually consists of a harder material, in particular mainly of a harder thermoplastic substance (or thermoplastic elastomer), an attempt is made to seal the contact area between the edge of the push-out opening and the contact element pushed through the opening, since the push-out opening is constructed to have an area that is smaller than the cross-sectional area of ​​the contact element. Thus, during the push-out process of the housing interior, the contact element presses on the edge of the push-out opening and opens the edge outwards. The outwardly opened edge of the push-out opening is then provided with, for example, a sealing paste.

[0042] However, in this type of embodiment, a slight positive pressure in the built-in plug-in connector is sufficient to press the outwardly open edge region of the push-out opening, thereby causing leakage of the built-in plug again. This type of positive pressure can be triggered by temperature fluctuations in the unit, for example by rapid heating of the unit in the case of direct sunlight.

[0043] The above-described exemplary embodiment of the built-in plug-in connector according to the invention solves this problem in that the geometry of the push-out opening is adapted to the shape of the cross-sectional area of ​​the contact element. This means that, for example, in the case of a flat rectangular contact element (often also referred to as a foil) with a rectangular cross section, the push-out opening also has a rectangular configuration. As an alternative or in addition, the area of ​​the push-out opening, for example, has only a slightly smaller configuration than the cross-sectional area of ​​the contact element, so that during the push-out of the contact element, the edge of the push-out opening does not open outwards. In this way, the press fit of the contact element in the push-out opening presses against the contact element over the entire area within the push-out opening and cannot be pressed open by a positive pressure in the built-in plug.

[0044] In another embodiment, in the case where the cross-sectional area of ​​at least one contact element is rectangular, at least one push-out opening has a roughly rectangular shape, in which case the two longer rectangular sides are constructed as protrusions / curves toward a center point of the rectangle, and the at least one push-out opening therefore in particular has, at least to a large extent, a shape similar to a biconcave lens.

[0045] The advantage of the above exemplary embodiment of the built-in plug-in connector according to the invention is that, due to the particularly thick construction of the housing bottom, the press fit between the contact element and the push-out opening is formed over a larger area on the contact element than is the case with the prior art having a significantly thinner housing bottom. This larger press fit area brings about an improved seal, since the sealing area is increased as a result, and the additional retention of the contact element in the push-out opening is improved, since the support area is increased as a result. In addition, when the contact element is pushed through the push-out opening, the housing bottom does not open outwards due to its increased stability provided by the additional thickness, so that the press fit is pressed against the contact element over the entire area in the push-out opening and cannot be pressed open due to the positive pressure in the built-in plug.

[0046] In a further embodiment, the contact element carrier has:

[0047] an insertion opening, which is provided for inserting a cable plug-in connector,

[0048] A contact element carrier interior space extending from the insertion opening to an end piece spaced apart from the insertion opening (in the axial direction of the central axis of the contact element carrier), (the contact element carrier interior space is arranged to receive an inserted cable plug-in connector), the end piece

[0049] oProvide a stop for the inserted cable plug-in connector, and

[0050] o at least one contact element receiving opening, through which a first partial region of the contact element is guided and then fixed in the contact part and the carrier part, and

[0051] A connecting flange (extending orthogonally / radially outwards with respect to the centre axis of the contact element carrier), which is arranged at the insertion opening.

[0052] Since the connecting flange extends radially outwards further than the diameter of the insertion opening, the connecting flange prevents the contact element carrier from being fully inserted into the housing pot. The end of the contact element carrier with the connecting flange is thus held outside the housing pot, so that the contact element carrier is at least partially inserted into the housing pot.

[0053] In another embodiment, the insertion-side end of the housing pot has a flange-like protrusion (extending orthogonally / radially with respect to the center axis of the housing pot), the flange-like protrusion

[0054] is placed onto the connecting flange of the contact element carrier on the side of the flange-like projection opposite to the insertion direction of the contact element carrier in the housing pot (that is to say, on the side of the flange-like projection opposite to the axial direction of the center axis of the housing pot), and / or

[0055] can be placed on the mounting plate on the side of the flange-like projection pointing in the axial direction relative to the insertion direction of the contact element carrier in the housing pot (that is to say on the side of the flange-like projection pointing in the axial direction of the central axis of the housing pot),

[0056] In particular, the flange-shaped projection has at least largely the same shape and extent as the connecting flange of the contact element carrier, with the result that the flange-shaped projection resting on the connecting flange of the contact element carrier ends at least largely flush with the connecting flange of the contact element carrier.

[0057] In another embodiment, the flange-like projection has a first sealing lip.

[0058] is arranged on the side of the flange-like projection which is opposite to the insertion direction of the contact element carrier in the housing pot,

[0059] extends completely around the flange-like protrusion, and / or

[0060] is placed onto the connecting flange of the contact element carrier so that a press fit is formed between the first sealing lip and the connecting flange of the contact element carrier, the press fit formed between the first sealing lip and the connecting flange of the contact element carrier being in particular impermeable to water and / or air (in both directions).

[0061] In another embodiment, the flange-like protrusion (on the side opposite to the axial direction of the central axis) has:

[0062] at least one protrusion (whose direction is opposite to the axial direction of the central axis), the at least one protrusion of the flange-shaped protrusion is pushed into at least one recess of the connecting flange that matches it, so that a press fit is formed between the protrusion of the flange-shaped protrusion and the recess of the connecting flange that matches it, and / or

[0063] At least one recess (which points in the axial direction of the center axis), which at least one recess of the flange-like projection receives at least one projection of the connecting flange that matches it, so that a press fit is formed between the recess of the flange-like projection and the projection of the connecting flange that matches it.

[0064] In another embodiment, at least one radially projecting connecting strip (in a direction orthogonal to the center axis of the housing pot) is formed on the flange-like projection, at the outer end of which a particularly pot-shaped sealing plug is fastened, the outer diameter of which is slightly larger (in the millimeter range) than the inner diameter of the insertion opening of the contact element carrier, with the result that when the particularly pot-shaped sealing plug is pushed into the insertion opening, a press fit is formed between the particularly pot-shaped sealing plug and the area (extending around the insertion opening and) extending in the insertion opening (that is to say, the inner area of ​​the insertion opening), particularly

[0065] a full-surface gripping tab protruding on the side of the sealing plug opposite the connecting strip, and / or

[0066] The press fit formed between the particularly pot-shaped sealing plug and the region extending into the insertion opening is impermeable to water and / or air (in the direction from the interior of the contact element carrier towards the outside of the contact element carrier and in the direction from the outside of the contact element carrier towards the interior of the contact element carrier).

[0067] In another embodiment, the flange-like protrusion has a rectangular shape, in particular with rounded corners, and the radially protruding connecting strip is molded on one side of the flange-like protrusion, in particular in a central / centered manner, and the radially protruding connecting strip is molded in particular on this side of the flange-like protrusion, so that an angle of 70° to 110°, in particular 90°, is formed between this side of the flange-like protrusion and the connecting strip.

[0068] In another embodiment, the flange-like protrusion has a rectangular shape, in particular with rounded corners, and radially protruding connecting strips are formed on the in particular rounded corners of the flange-like protrusion, in particular wherein the radially protruding connecting strips are formed on the in particular rounded corners of the flange-like protrusion so that an angle of 120° to 140°, in particular 135°, is formed between the longer sides of the two sides forming the in particular rounded corner of the flange-like protrusion.

[0069] In the case of built-in plug-in connectors according to the prior art, the radially protruding connecting strip together with the sealing plug attached thereto is not constructed as part of the housing can, but is constructed as a separate part, which is attached centrally to one side of the connecting flange. Here, for example, the part is attached in such a way that the connecting strip protrudes vertically upwards or vertically downwards, that is to say, a 90° angle is formed between the corresponding edge of the connecting flange and the connecting strip. However, a disadvantage of this type of arrangement of connecting strips is that in the case of a vertical arrangement of multiple built-in plug-in connectors adjacent to each other (such an arrangement is of course common in loudspeaker boxes), for example, the connecting strip and the sealing plug protrude beyond the insertion opening of the built-in plug-in connector arranged directly above or below and thus hinder the insertion operation in the case of this built-in plug-in connector.

[0070] The above-described exemplary embodiment of the invention has the advantage that, due to the arrangement at the corners of the flange-shaped projection of the housing and the orientation of the connecting strip (e.g., extending along the diagonal of the flange-shaped projection), in the case of a vertical arrangement of a plurality of built-in plug-in connectors, the connecting strip and the sealing plug protrude adjacent to each other past the built-in plug-in connector located above or below them, and the insertion operation is therefore not interrupted. Here, in particular, the connecting strip is oriented obliquely upwards (rather than obliquely downwards), because rainwater cannot collect in the sealing plug in this way. In the case of four built-in plugs according to the invention arranged in a square 2x2 arrangement, the corresponding connecting strips can in particular be arranged at the corners towards the center of the 2x2 arrangement, so that all four connecting strips and the sealing plugs protrude to the center. In this way, a plurality of built-in plug-in connectors provided with a housing can according to the invention can be arranged in a very small space without having to accept the disadvantages of the prior art.

[0071] In another embodiment, the flange-shaped protrusion has two recesses for guiding the fastening device through, and the two recesses are particularly arranged in the obliquely opposite rounded corners of the flange-shaped protrusion. The fastening device is configured to fasten the built-in plug-in connector to the mounting plate. The two recesses are coaxially positioned relative to the mounting hole, and are particularly arranged in the obliquely opposite rounded corners of the connecting flange. The corresponding diameters of the two recesses particularly correspond to the corresponding diameters of the mounting hole.

[0072] In another embodiment, the radial extent of the two obliquely opposite radii of the flange-shaped protrusion (in each case, one of the two recesses for guiding the fastening device through is arranged) is smaller than the radial extent of the two obliquely opposite radii of the connecting flange (in each case, one of the two mounting holes is arranged).

[0073] In another embodiment, the flange-like projection has a second sealing lip.

[0074] arranged on the side of the flange-like projection pointing in the insertion direction of the contact element carrier in the housing pot (or in the axial direction of the center axis),

[0075] Extends completely around the flange-like protrusion,

[0076] in each case completely (in a circular manner) around one of the two recesses for guiding the fastening device through, and / or

[0077] Can be placed on the mounting plate such that a press fit is formed between the second sealing lip and the mounting plate, the press fit formed between the second sealing lip and the mounting plate being in particular impermeable to water and / or air (in both directions).

[0078] In some specific embodiments, the housing pot for mounting the plug-in connector according to the present invention has a flange-shaped protrusion, which is pressed onto the connecting flange and the mounting plate when the connecting flange is screwed onto the mounting plate and therefore serves in particular as a seal between these two components. Since the flange-shaped protrusion, like the housing pot, consists of a soft, rubber-like material, the flange-shaped protrusion is greatly compressed, in particular in the area around the threaded leadthrough. Since the flange-shaped protrusion has a smaller range than the connecting flange in these areas, lateral expansion of the flange-shaped protrusion below the connecting flange at these greatly compressed positions is prevented. The first sealing lip and the second sealing lip are each used to form a corresponding press fit, which seals even under low contact pressures.

[0079] In another embodiment, at least one ejection opening is positioned in the housing bottom such that the ejection opening

[0080] · 2 mm to 6 mm, in particular 3 mm to 5 mm, from the outer edge of the housing bottom, and / or

[0081] The distance from the center point of the housing bottom is 5 mm to 9 mm, in particular 6 mm to 8 mm.

[0082] In another embodiment, a wall-shaped protrusion is provided on the side of the housing bottom facing the housing interior space.

[0083] rising upward from the housing bottom in a direction opposite to the insertion direction of the contact element carrier in the housing pot (or opposite to the axial direction of the center axis),

[0084] extends around the housing bottom, in particular in an annular manner, spaced apart from the housing cover (freestanding, not in contact with the housing cover),

[0085] A third sealing lip is provided on the side of the wall-like protrusion facing the central axis, and the third sealing lip extends from the side of the wall-like protrusion facing the central axis at least approximately orthogonally (deviating from the vertical line within a possible single-digit angle range) toward the central axis, and / or

[0086] Pressed in the axial direction of the center axis against the contact element carrier inserted into the housing pot, so that

[0087] o forming a first press fit between the third sealing lip and the contact element carrier, and / or

[0088] o forming a second press fit between the wall-shaped projection and the contact element carrier,

[0089] The first press fit and / or the second press fit are in particular impermeable (in both directions) to water and / or air.

[0090] During the pushing and pressing of the contact element carrier into the housing bottom, in the case of built-in plug-in connectors according to the prior art, the housing cover is slightly pressed laterally in the region of the housing bottom (e.g. because the housing cover is bent inwards and thus presses against the contact element carrier), with the result that stresses in the housing bottom increase. This increase in stress can cause the press fit to warp and thus become leaky between the push-out opening arranged near the housing cover and the contact element located in this opening. As mentioned above, this problem is also solved by the fact that the contact point between the push-out opening and the contact element is additionally sealed by a sealing device such as an adhesive, a sealing paste or an O-ring. In contrast, the built-in plug-in connector according to the invention solves the problem of stresses occurring in the housing bottom and the associated leakage between the push-out opening and the contact element, since the wall-shaped projection is arranged in a free-standing manner and does not contact the housing cover in the housing interior. In this way, during the process of pushing the contact element carrier into the bottom of the housing, the wall-shaped protrusion is slightly squeezed to the side by the contact element carrier, and thus a first press fit is formed between the third sealing lip and the contact element carrier and / or a second press fit is formed between the wall-shaped protrusion and the contact element carrier, without an increase in stress occurring in the bottom of the housing (it can also be said in layman's terms that the wall-shaped protrusion has "some play" so that it can be pressed open without deforming the bottom of the housing).

[0091] In another embodiment, three push openings extend in the housing bottom.

[0092] In another embodiment, the (contact element) is arranged on the outer side of the housing bottom, the isolating element

[0093] rises further upwards from the housing bottom (in the axial direction relative to the central axis of the housing pot) than the contact element which is at least partially pushed through the at least one ejection opening, and / or

[0094] Extending on the housing bottom (orthogonally with respect to the central axis of the housing pot) such that the radial extent of the separation element on the housing bottom is smaller than or equal to the radial extent of the housing bottom.

[0095] In another embodiment, the separation element is designed as a separation wall between:

[0096] in each case two of the three ejection openings extending in the housing bottom, and / or

[0097] in each case two of the three contact elements which are in each case at least partially pushed through one of the three push-out openings,

[0098] The partition wall is designed in particular as a three-pointed star, the center of symmetry (center point) of which is arranged coaxially with respect to the center axis of the housing cup on the housing bottom.

[0099] In a further embodiment, the in particular cylindrical housing cap and the contact element carrier each have a radial extent which results in a press fit between the in particular cylindrical housing cap and the contact element carrier at least partially inserted into the housing cup through the insertion opening.

[0100] In another embodiment, the following components of the housing pot are constructed in one piece:

[0101] Housing cover, housing bottom and insertion side end,

[0102] Housing cover, housing bottom, insertion side end and flange-like protrusion,

[0103] Housing caps, housing bases, plug-in-side ends, flange-like projections, radially protruding connecting strips and, in particular, pot-shaped sealing plugs, or

[0104] Housing cap, housing base, plug-in-side end, collar-like projection, radially protruding connecting strips, in particular pot-shaped sealing plugs and separating elements.

[0105] In a further embodiment, the integral part of the housing cup is made of a material having a Shore A hardness in the range of 60 to 100, the integral part of the housing cup being produced in particular by an injection molding method, pressing or vulcanization.

[0106] Since the above-mentioned components of the housing tank are made of soft, flexible materials as much as possible in one piece, there are no contact points, gaps, transitions, etc. between these components, at which leakage may occur or these contact points, gaps, transitions, etc. must be additionally sealed by O-rings or adhesives. In this way, compared with the prior art, sealing materials and working steps are also saved. In addition, all functions of the housing tank are combined in one component, which in turn makes simplified handling possible (or simplified assembly, because fewer components need to be plugged together).

[0107] The injection molding method can simplify the manufacture of the various components of the housing tank, in particular, the manufacture of the housing tank formed in one piece by these components. For the manufacture by the injection molding method, the material used must first be melted and then injected into the corresponding mold. In addition, the material must be able to solidify in the corresponding mold by cooling and maintain this solidified shape until reheating. Therefore, it is particularly advantageous that the soft material has a thermoplastic substance or is mainly composed of such a thermoplastic substance (or thermoplastic elastomer) (often with additives such as plasticizers or flame retardants mixed in), because many thermoplastic substances have the above-mentioned properties and can therefore be used in the injection molding method. In addition, some thermoplastic substances have a Shore hardness, in particular amorphous thermoplastic substances, such as low-density polyethylene (LDPE), random polypropylene (PP-at) or random polystyrene (PS-at), which is very close to the Shore hardness of the soft material of the housing tank.

[0108] The advantages of producing the housing tank according to the invention by means of an injection molding method are that the injection molding method firstly allows high-precision production and secondly different components (e.g. plastic and fireproofing substances) can be added in different proportions in the manner of a "recipe". In the case of using a recipe, a check can be subsequently carried out to determine whether the final product has the desired material properties and the recipe can be adjusted.

[0109] A further advantage of one embodiment of the housing can according to the invention compared to the prior art is that, despite the addition of the flame retardant substance, the housing can still has the above-mentioned Shore A hardness. It is a great challenge to produce flame-retardant V0 materials of this type in this Shore A hardness range, because materials provided with flame retardants have become very hard and brittle so far and have therefore lost their sealing effect. Flame retardancy is very important, especially for the built-in plugs of powerCON, because these plugs must comply with the UL94 standard (that is, the material and the plug must be certified as V0 at 1 mm according to UL 94). Due to the requirements of the standard or the standard, it is advantageous to add a flame retardant (a certain proportion of flame retardant additive) to the material. The protection class can be defined by the percentage of flame retardant additive added to the overall mixture.

[0110] Furthermore, in another embodiment, the material of the housing pot can also be UV-stabilized (according to UN standard UL50E, therefore requiring UL certificate f1). For this purpose, 10 to 15% by weight or 10 to 15% by mole or 10 to 15% by volume of a UV stabilizer are added to the material. As a result of the UV stabilization, the installed plug-in connector according to the invention or the housing pot according to the invention can be used in outdoor areas. For this purpose, for example, the product line "True Outdoor Protection" (TOP) from Neutrik AG (also known as the Neutrik Group) from Liechtenstein can be used.

[0111] Furthermore, the soft material of the housing cup according to the invention is designed such that, even when producing the housing by an injection molding method, so-called undercuts can be realized, which, for example, enable the formation of a first sealing lip or a wall-like projection.

[0112] In an exemplary embodiment of the built-in plug-in connector according to the invention, the contact carrier is made of a material having a Shore D hardness in the range of 60 to 100.

[0113] Although the main function of the contact element carrier is to receive (in particular three) contact elements (also called pins or foils), the term contact element carrier is to be understood as meaning not only a simple contact element holder. Instead, the contact element carrier also has the task of providing a socket for receiving a cable plug and an element for locking the cable plug in the socket. Furthermore, in a particular embodiment, the contact element carrier provides a connecting flange, through the mounting holes of which a screw is guided for screwing the contact element carrier to a mounting plate, for example a mounting plate of a loudspeaker box. Here, the connecting flange is pressed onto the mounting plate, thus preventing the contact element carrier or the entire built-in plug-in connector from sliding through a recess in the mounting plate. In the case of a built-in plug-in connector housing according to the prior art, the housing is usually opened via the contact element carrier, without the housing itself having a flange-like protrusion, which could also be pressed onto the mounting plate or could be screwed onto the mounting plate. Therefore, in addition to the functions mentioned above, the contact element carrier is also used as a framework or supporting structure for receiving other components of the built-in plug-in connector, or is surrounded by them, as a supporting and forming structure to define the internal space of the built-in plug-in connector, which is for example provided for receiving and locking a cable plug-in connector, and makes it possible to fix the built-in plug-in connector to the mounting board.

[0114] Since the contact element carrier is provided as a support structure / skeleton for the built-in plug-in connector, it is particularly advantageous if the contact element carrier consists of a harder material than the housing pot. Since in an advantageous embodiment the contact element is manufactured like the housing pot by an injection molding method, pressing or vulcanization, it is particularly advantageous if the material of the contact element carrier comprises a thermoplastic, in particular consists predominantly of this thermoplastic. Since in this exemplary embodiment the contact element carrier has a Shore hardness in certain areas, it is particularly advantageous to use a thermoplastic with a similar Shore hardness for the material of the contact element carrier. For this purpose, semi-crystalline thermoplastics such as isotactic PP, isotactic PS or high-density polyethylene (HDPE) will be discussed.

[0115] In another embodiment, the contact element carrier is at least partially inserted into the housing pot (in the axial direction of the center axis of the housing pot) so that

[0116] The central axis of the contact element carrier and the central axis of the housing are coaxial,

[0117] The end piece on that side of the housing bottom which faces the housing interior is guided at least partially over the wall-shaped projection, in particular also over the third sealing lip, and / or at least partially contacts the wall-shaped projection, with the result that

[0118] o forming a first press fit between the third sealing lip and the contact element carrier, and / or

[0119] o forming a second press fit between the wall-shaped projection and the contact element carrier,

[0120] The first press fit and / or the second press fit are in particular impermeable (in both directions) to water and / or air, and / or

[0121] The at least one contact element receiving element is aligned with at least one push-out opening extending in the housing bottom, so that a contact element located in the at least one contact element receiving opening is pushed out of the built-in plug-in connector at least partially through the at least one push-out opening in the axial direction of the center axis of the housing pot.

[0122] In another embodiment, the at least one contact element has

[0123] a first partial region which is received by the contact element carrier (e.g. by being inserted into the at least one contact element receiving opening) and is fixed in the built-in plug-in connector so that, when the cable plug-in connector is inserted into the insertion opening, the first partial region contacts the contact element counterpart on the cable plug-in connector side and thus provides a signal transmission via the plug-in connection, and

[0124] a second partial region which protrudes from the contact element carrier (that is to say rises upwards from the end piece in an axial direction relative to the insertion direction of the contact element carrier in the housing pot) so that the second partial region is pushed out of the built-in plug-in connector through the at least one push-out opening (in an axial direction relative to the insertion direction of the contact element carrier in the housing pot) and thus rises upwards from the housing bottom (in an axial direction relative to the insertion direction of the contact element carrier in the housing pot), with the result that the second partial region can come into contact with a cable end piece, in particular a wiring harness, of a cable which is provided for providing a signal, in particular a current supply signal, a digital signal or an analog signal, which is provided for signal transmission via the plug-in connector (for example via crimping, welding, soldering or clamping using a special clamp),

[0125] The first sub-region and the second sub-region are formed in one piece.

[0126] In another embodiment,

[0127] The three contact elements are at least partially received by the contact element carrier, and / or

[0128] Three ejection openings extend in the housing bottom.

[0129] In another embodiment, the built-in plug-in connector is configured to achieve a mechanically lockable plug-in connection with a cable plug-in connector of the following type:

[0130] a three-pole power plug-in connector type (e.g. a powerCON plug from Neutrik AG, Liechtenstein (also known as the Neutrik Group)), the built-in plug-in connector is specially constructed as a three-pole power socket (e.g. a powerCON socket from Neutrik AG, Liechtenstein (also known as the Neutrik Group)), or

[0131] The following cable plug-in connector types:

[0132] o IEC,

[0133] o XLR,

[0134] o RJ45,

[0135] o HDMI,

[0136] o USB, or

[0137] o RCA,

[0138] The built-in plug-in connector is in particular designed as a socket which is correspondingly adapted to this type of cable plug-in connector.

[0139] In another embodiment, the built-in plug-in connector is to be inserted into the mounting plate recess in the following manner:

[0140] The housing pot is pressed against and supported on the inner surface of the recess of the mounting plate (for example, the housing pot is pressed against by the housing cover), and / or

[0141] The flange-shaped protrusion is pressed against the front side of the mounting plate on the side of the flange-shaped protrusion facing the front side of the mounting plate (that is, on the side of the flange-shaped protrusion in the axial direction facing the central axis of the housing pot), and the front side of the mounting plate points in the direction in which the cable plug-in connector can be guided to the built-in plug-in connector, which is in its state of being built-in on the mounting plate.

[0142] In another embodiment, in order to provide a mechanically lockable plug-in connection, the contact element carrier has a locking mechanism for the cable plug-in connector, the interior of the contact element carrier being in particular:

[0143] a mechanical restraint element which is arranged to block a restraint element counterpart on the cable plug-in connector side with respect to an axial movement in the pull-out direction of the cable plug-in connector within the scope of a first part of a locking mechanism, which can be actuated by a rotation of the cable plug-in connector in the screw-in direction when the cable plug-in connector is at least partially pushed into the interior space of the contact element carrier (and correspondingly also into the built-in plug-in connector), and

[0144] a mechanical closing element which is arranged to bring about, within the scope of a second part of the locking mechanism which can be actuated by displacement of the screw slide on the cable plug-in connector side, an engagement of a screw of the cable plug-in connector which is connected to the screw slide in the closing element and thus blocks the cable plug-in connector with respect to a rotation in a direction of development opposite to the screw-in direction.

[0145] In another embodiment, the restraining element is arranged and configured such that upon actuation of the first portion of the locking mechanism, the restraining element counterpart engages behind the restraining element.

[0146] In another embodiment,

[0147] The mechanical restraining element is constructed as a groove arrangement, the grooves of which firstly all extend axially and thus serve in particular as key counterparts of a key element of a cable plug-in connector and then extend perpendicularly to the axis or slightly obliquely to the axis ( s li g htly obliquely with respect toperpendicularly with respect to the axis) and serves as a restraining component in this area, the restraining element counterpart being constructed as a lug arrangement which is inserted into a groove arrangement by achieving a plug-in connection and is prevented from being pulled out axially by a groove arrangement area extending perpendicularly with respect to the axis or slightly obliquely with respect to the axis, or

[0148] The mechanical restraining element is constructed as a lug arrangement, and the restraining element counterpart is constructed as a groove arrangement, the grooves of which first all extend axially in the inserted state and thus serve as key elements of the lug arrangement, the key elements serving in particular as key counterparts, and then extend perpendicularly to the axis or slightly inclined relative to perpendicular to the axis. Due to the achievement of the plug-in connection, the groove arrangement area extending perpendicularly to the axis or slightly inclined relative to perpendicular to the axis engages behind the lug arrangement, and thus the cable plug opening connector is prevented from being pulled out axially.

[0149] In another embodiment, the restraining element is arranged in such a way and has an inclined path that, due to and under the actuation of the first part of the locking mechanism, the restraining element counterpart moves along the inclined path until the restraining element counterpart contacts the rotation stop and reaches the end insertion position of the cable plug-in connector in the interior space of the contact element carrier (and therefore also in the built-in plug-in opening connector).

[0150] In another embodiment, the internal space of the contact element carrier has a mechanical key matching piece, which is configured to interact with the key element of the cable insertion opening connector and match the key element so that the cable plug-in connector can be inserted into the built-in plug-in connector only in a specific rotational direction predefined by the key matching piece.

[0151] The invention further relates to a housing pot (or an internal plug-in connector housing) for an internal plug-in connector according to one of the above-described embodiments (or according to any one of claims 1 to 14 ). BRIEF DESCRIPTION OF THE DRAWINGS

[0152] The housing can according to the invention and the built-in plug-in connector according to the invention will be described in more detail in the following text based on the embodiments schematically shown in the figures by way of example. Identical elements are marked with the same reference numerals in the figures. The described embodiments are generally not shown to scale, and they should not be understood as limiting. In detail:

[0153] Figure 1A to Figure 1B A perspective view of an exemplary embodiment of a housing cup according to the invention is shown.

[0154] FIG. 2A to FIG. 2B shows a perspective view of an exemplary embodiment of a housing pot according to the invention,

[0155] Figure 3 shows a front view of an exemplary embodiment of a built-in plug-in connector according to the invention,

[0156] Figure 4 shows a rear view of an exemplary embodiment of a built-in plug-in connector according to the invention,

[0157] Figure 5 shows a perspective view of an exemplary embodiment of a built-in plug-in connector according to the invention,

[0158] Figure 6 A perspective view showing an exploded illustration of an exemplary embodiment of a built-in plug-in connector according to the invention,

[0159] Figure 7 shows a side view of an exemplary embodiment of a built-in plug-in connector according to the invention,

[0160] Figure 8 shows a side view of an exploded illustration of an exemplary embodiment of a built-in plug-in connector according to the invention,

[0161] FIG. 9A to FIG. 9B A schematic diagram of the interior of a housing before and after inserting a contact element carrier and guiding the contact elements through the ejection opening in the case of an internal plug-in connector according to the prior art is shown,

[0162] FIG. 10A to FIG. 10B shows a diagrammatic illustration of the stresses occurring in the housing bottom in the case of a built-in plug-in connector according to the prior art,

[0163] FIG. 11A to FIG. 11B A schematic diagram of the interior of the housing, in particular of the push-out opening and the wall-like projection, is shown in the case of an in-built plug-in connector according to the invention before and after inserting the contact element carrier and guiding the contact element through the push-out opening,

[0164] Fig.12 shows a schematic diagram of the arrangement of the connecting flange, the flange-like protrusion and the mounting plate in the case of a built-in plug-in connector according to the invention,

[0165] Figure 13 to Figure 14shows a perspective view of a further exemplary embodiment of an in-built plug-in connector according to the invention, which is configured as a two-unit plug-in connector,

[0166] Figures 15 to 17 Shows Figure 13 to Figure 14 A perspective view of an exploded view of the built-in plug-in connector shown,

[0167] FIG. 18A to FIG. 18B A perspective view showing a further exemplary embodiment of a built-in plug-in connector according to the invention for rear fastening to a mounting plate, and

[0168] FIG. 19A to FIG. 19B Shows FIG. 18A to FIG. 18B A perspective view of an exploded illustration of the built-in plug-in connector is shown. DETAILED DESCRIPTION

[0169] Figure 1A A perspective view of an exemplary embodiment of a housing pot 1 according to the invention is shown, in which a cylindrical housing cap 4, a round housing bottom 10, a flange-like projection 14 of predominantly rectangular design, a connecting strip 16, a pot-shaped sealing plug 17, a gripping tab 18 and a separating / isolating element 19 are constructed in one piece. The insertion opening 6 extends in the insertion-side end 5 of the housing 1, on which the flange-like projection 14 extends radially. In this embodiment of the housing 1, the housing bottom 10 has three ejection openings 11.

[0170] Figure 1B A projection 20 is shown, which is configured to be pushed into a corresponding recess of the connecting flange 15 and held in the recess by a press fit, so that the housing 1 and the contact element 7 are fixedly held together. In addition, a first sealing lip 23 is shown, which is provided to seal the contact area of ​​the flange-like protrusion 14 with the connecting flange 15.

[0171] Figure 2A and Figure 2B A perspective view of an exemplary embodiment of the housing cup 1 according to the invention is shown, which also has a second sealing lip 24. The second sealing lip 24 is provided to extend around the flange-like projection 14 in the edge region and the recess 21 provided for guiding the fastening device through, and thus seals the contact area of ​​the flange-like projection 14 with the mounting plate.

[0172] Figure 3A front view of an exemplary embodiment of a built-in plug-in connector 2 according to the invention is shown, which shows a mounting hole 25, a restraining element 26 configured as a groove, a mechanical closing element 27 provided for a bolt of a bolt slider on the cable plug-in connector side, and an insertion opening 8 for inserting the cable plug-in connector into the built-in plug-in connector.

[0173] Figure 4 A rear view of an exemplary embodiment of an in-built plug-in connector 2 according to the invention is shown, which shows a separating element 19 configured as a three-pointed star. Furthermore, the arrangement of the connecting strip 16 and the rounded corner of the housing 1 can be seen, the connecting strip being arranged obliquely (along the diagonal from one corner of the housing to the other corner) so that an angle of approximately 135° is formed between one side of the flange-like protrusion 14 and the connecting strip 16.

[0174] Figure 5 shows a perspective view of an exemplary embodiment of a built-in plug-in connector 2 according to the invention, Figure 6 The corresponding perspective view of the exploded illustration of an exemplary embodiment of the built-in plug-in connector according to the invention is shown. Here, the sealing ring 28 is arranged in the contact element carrier 7 and serves as an additional seal when one of the above-mentioned press fits 1 becomes leaky due to material fatigue / material aging, for example.

[0175] Figure 7 shows a side view of an exemplary embodiment of a built-in plug-in connector 2 according to the invention, Figure 8 The exploded side view of an exemplary embodiment of the built-in plug-in connector 2 according to the invention is shown. The two figures serve to further explain the built-in plug-in connector 2 according to the invention. The element 29 serves as an additional fixation for the contact element carrier 7 in the housing 1.

[0176] Fig. 9A shows a schematic diagram of the interior of the housing in the case of an internal plug-in connector according to the prior art before the contact element carrier is inserted and the contact elements are guided through the ejection opening, Fig. 9BA schematic diagram of the interior space of a housing after the insertion of a contact element carrier and the introduction of the contact element through a push-out opening is shown in the case of a built-in plug-in connector according to the prior art. Here, the push-out opening is constructed with an area that is smaller than the cross-sectional area of ​​the contact element, thereby ensuring the opening of the edge of the push-out opening during the introduction of the contact element. Here, the opening area is pressed against the contact element by a press fit, but no press fit is formed over the entire thickness of the housing bottom. In order to facilitate the introduction of the contact element and the opening of the edge area, the push-out opening is of funnel-shaped construction. However, as mentioned above, in the case of this type of embodiment, a small positive pressure in the built-in plug-in connector is sufficient to press open the outwardly open edge area of ​​the push-out opening, thereby again causing leakage of the built-in plug.

[0177] also, Fig. 9B It is explained how the housing cover, which is bent into the housing interior in the region of the housing bottom, forms a kind of step, against which a force (marked here by an arrow) acts when the contact element carrier or the seal (e.g. an O-ring) is pushed in and pressed onto the housing bottom, so that the housing cover is (slightly) pressed to the side in the region of the housing bottom. As described above, this leads to increased stresses in the housing bottom.

[0178] In the case of built-in plug-in connectors according to the prior art, the stress in the housing base increases at Fig. 10A As indicated by the arrow pointing in the direction of the housing cover, this stress increase is transmitted to the ejection opening arranged nearby and ensures that the latter warps and thus becomes leaky, as shown in FIG. Fig. 10B shown.

[0179] Fig.11A A schematic diagram of the housing interior 12, in particular the push-out opening 11 and the wall-like projection 30, is shown in the case of an inventive built-in plug-in connector 2 before the contact element carrier 7 is inserted and the contact element 9 is guided through the push-out opening 11, Fig. 11B A schematic diagram of the housing interior 12 , in particular the push-out opening 11 and the wall-like projection 30 , is shown in the case of an in-built plug-in connector 2 according to the invention after insertion of the contact element carrier 7 and guidance of the contact element 9 through the push-out opening 11 .

[0180] Due to the soft material of the housing pot 1, the contact element 9 can be guided very simply through the push-out opening 11 even without a funnel-shaped configuration. Due to the geometry and the area of ​​the push-out opening 11 adapted to the cross-sectional area of ​​the contact element 9, in the case of the housing pot 1 according to the invention, the contact element 9 can be pushed through the push-out opening 11 without its edges or its inner surface (also referred to as the area extending into the push-out opening 11) opening / bending outwards. Here, the housing bottom 10 is slightly pressed laterally by the contact element 9 (which is easy to achieve in the case of an elastic material of the housing 1 without a relatively large increase in stress in the housing bottom 10), so that the inner area of ​​the opening 11 is slightly stretched in some cases, but continues to press against the contact element 9 over the full surface area. In other words, the press fit of the contact element 9 in the push-out opening 11 presses against the contact element 9 over the entire area (inner area) within the push-out opening.

[0181] In the exemplary embodiment of the built-in plug-in connector 2 according to the invention shown, the area of ​​the ejection opening 11 is selected such that the inner region of the opening 11 is stretched when the contact element 9 is pushed through. Thus, projections are configured both on the inner side and on the outer side 13 of the housing bottom 10, which press against the contact element 9 and prevent the housing bottom 10 from being pressed outwards or inwards at the contact point with the contact element 9 in the case of positive or negative pressure inside the built-in plug-in connector 2 and in the case of positive and negative pressure outside the built-in plug-in connector 2.

[0182] Fig.11A and Fig. 11B It is further shown that in the case of the built-in plug-in connector 2 according to the invention, the wall-shaped projection 30 is arranged in a free-standing manner and does not contact the housing cover 4 in the housing interior 12, in particular on the housing bottom 10. Fig. 11B As shown, if the contact element carrier 7 is then pushed into the housing bottom 10, the wall-shaped protrusion 30 is (slightly) pressed to the side by the contact element carrier 7, so that a second press fit is formed between the wall-shaped protrusion 30 and the contact element carrier 7. In an exemplary embodiment of the built-in plug-in connector 2, the wall-shaped protrusion 30 has a third sealing lip (extending orthogonally from the wall-shaped protrusion 30 toward the center axis of the housing pot 1 relative to the center axis of the housing pot 1), which rests on the pushed-in contact element carrier 7 in a manner that a first press fit is formed between the third sealing lip and the contact element carrier 7.

[0183] Since the wall-shaped protrusion 30 is attached to the housing bottom 10 in an independent manner and is not in contact with the housing cover 4, it can be pressed laterally by the pushed-in contact element carrier 7 without the housing cover 4 being pressed outward in the area of ​​the housing bottom and the stress in the housing bottom 10 being increased.

[0184] In this way, it is possible to prevent the ejection opening 11 arranged close to the housing shell 4 from warping and thus prevent the press fit between the inner area of ​​the ejection opening 11 and the contact element 9 guided through from becoming leaky. Thus, in contrast to previously known solutions from the prior art, in the case of the housing pot 1 according to the invention or the built-in plug-in connector 2 according to the invention, there is no need for subsequent sealing of the contact point between the inner area of ​​the ejection opening 11 and the contact element 9 guided through by means of additional sealing means such as O-rings or adhesives which are initially liquid and harden over time.

[0185] Fig.12 A schematic diagram of the arrangement of the connecting flange 15 , the flange-like protrusion 14 and the mounting plate 31 in the case of the built-in plug-in connector 2 according to the invention is shown.

[0186] In the exemplary embodiment shown, the flange-like projection 14 has projections 20 pointing in opposite directions relative to the axial direction of the center axis, which projections 20 of the flange-like projection 14 are pushed into matching recesses 32 of the connecting flange 15 of the contact element carrier 7, so that a press fit is formed between the projections 20 and the matching recesses 32. Furthermore, it is shown that the flange-like projection 14 has the same radial extent as the connecting flange 15, as a result of which the flange-like projection 14 placed on the connecting flange 15 ends flush with the connecting flange 15.

[0187] like Fig.12 As shown, if the built-in plug-in connector 2 is inserted into the recess of the mounting plate 31, the housing cover 4 first presses against the inner area of ​​the recess, and the flange-shaped projection 14, in particular the second sealing lip 24 arranged on the axially directed side of the flange-shaped projection, then presses against the front side of the mounting plate 31. The front side of the mounting plate 31 points to the position where the cable plug-in connector can be guided onto the built-in / mounted plug-in connector 2, which is in the state built-in on the mounting plate 31. By screwing the connecting flange 15 onto the mounting plate 31, which in this embodiment does not come into contact with the mounting plate 31, the flange-shaped projection 14, which is located between the second sealing lips 24 of the housing 1, in particular, is pressed onto the mounting plate, so that the contact point between the built-in plug-in connector 2 and the mounting plate 31 becomes impermeable to dust, moisture and / or air. In this way, in the case of the built-in plug-in connector 2 according to the invention, the contact point between the built-in plug-in connector 2 and the mounting plate 31 is already impermeable to dust, water and / or air even without the use of additional sealing means.

[0188] Fig.13 and Fig.14 The three-dimensional diagrams are shown respectively, Fig.15 , Fig.16 , Fig.17 A related stereoscopic view of an exploded view of an exemplary embodiment of a built-in plug-in connector 42 according to the present invention is shown, and the built-in plug-in connector 42 is constructed as a two-unit plug-in connector, namely, a housing pot pair 41 constructed as an integral body and a contact element carrier pair 47 matching the former, and the contact element carrier pair 47 is constructed as an integral body to form a common flange element for two insertion openings 8A, 8B, and the two insertion openings 8A, 8B are arranged to pass through the housing pot pair.

[0189] The housing pot of the housing pot pair 41 and the contact element carrier of the contact element carrier pair 47 are each constructed essentially as described at the beginning, however, one housing pot / contact element carrier combination is constructed to provide a signal input insertion opening 8A, and the other housing pot / contact element carrier combination is constructed to provide a signal output insertion opening 8B. The flange element provided by the housing pair 41 and the contact element carrier pair 47 has a fixing measure 25, for example, in the form of a hole for receiving a fastening device for fixing the built-in plug-in connector to a mounting plate.

[0190] Furthermore, the built-in plug-in connector 42 has a connecting element 50 that connects the contact elements 9 for the signal input insertion opening 8A and the signal output insertion opening 8B to each other so that the contact elements of the signal input insertion opening 8A and the signal output insertion opening 8B are connected to a common connector element 51. The contact elements 9, the housing pots of the housing pot pair 41, and the contact element carriers of the contact element carrier pair 47 are all connected in the same manner as in FIGS. Figure 6 The cover plate 53 covers the exposed conductive elements for connecting the contact elements 9 of the signal input insertion opening 8A and the signal output insertion opening 8B. Figure 6 In a similar manner to the embodiment of the built-in plug-in connector described in , the element 29 serves as an additional fixing for the contact element carrier pair 47 in the housing 1 .

[0191] Fig.18A and Fig.18B The three-dimensional diagrams are shown respectively, Fig.19A and Fig.19B A related perspective view of an exploded view of an exemplary embodiment of an inboard plug-in connector 2 according to the invention is shown, which has a supporting flange 60 for rearward fastening to a mounting plate.

[0192] The support flange 60 has a leadthrough that is adapted to the diameter of the housing shell 4, through which the housing pot 1 is guided so that the flange-shaped projection of the housing pot 1 first (identically) lies on the support flange 60, in particular the radial extent of the flange-shaped projection and the support flange 60 are identical, and the housing bottom and the contact element 9 that is guided through accordingly again leave the leadthrough of the support flange 60. In addition, on the plug-in side, the support flange 60 has a recess into which a projection of the flange-shaped projection that is correspondingly configured as a counterpart and points backward (in the direction away from the mounting plate) is pushed with an exact fit, and the two components are thus connected to one another, for example by a press fit.

[0193] Furthermore, the support flange 60 has at least one blind hole for receiving a fastening means (e.g. a screw) from a mounting plate for fastening the built-in plug-in connector 2 to the mounting plate. The flange-shaped protrusion has at least one recess which is provided for guiding the fastening means through and which coincides with the opening of the blind hole when the housing pot 1 and the support flange 60 are correctly plugged together.

[0194] In the case of the exemplary embodiment shown, the contact element carrier 7 of the built-in plug-in connector 2 according to the invention has a connecting flange which has a smaller radial extent than in other embodiments. This smaller connecting flange is pushed with an exact fit into a correspondingly configured recess of a flange-shaped projection of the housing pot 1 as a counterpart, so that the plug-in-side end of the contact element carrier 7 merges flush into the plug-in-side end of the housing pot 1 and thus forms a planar surface in the region of the contact element carrier 7 received in the housing pot 1.

[0195] In the case of an exemplary embodiment of the built-in plug-in connector 2 according to the invention, the planar surface is constructed to be placed on the rear side of a mounting plate, a corresponding fastening device (e.g. a screw) being guided through the mounting plate and at least one recess of the flange-like protrusion and then engaging in at least one blind hole.

[0196] In the illustrated further embodiment of the built-in plug-in connector 2 according to the invention, the fastening means are not guided directly through the mounting plate to fix the built-in plug-in connector 2 on the rear side of the mounting plate, but first the second supporting flange is screwed onto the front side of the mounting plate by means of the fastening means.

[0197] An example of a built-in plug-in connector is shown in patent application PCT / EP2022 / 065102, which is placed on the rear side of a mounting plate via a first support flange and also has a second support flange placed on the front side of the mounting plate, and fastening means (e.g. screws) that fix the first support flange and the second support flange to the mounting plate.

[0198] It goes without saying that these figures only schematically show possible exemplary embodiments. The various methods can likewise be combined with one another and with methods from the prior art.

Claims

1. A built-in plug-in connector (2, 42) for achieving a plug-in connection with a cable plug-in connector, the cable plug-in connector matching the built-in plug-in connector (2, 42) as a counterpart and being insertable into an insertion opening (8, 8A, 8B) of the built-in plug-in connector (2, 42), wherein signal transmission is achieved by achieving the plug-in connection between the built-in plug-in connector (2, 42) and the cable plug-in connector, It is characterized in that The built-in plug-in connector (2, 42) comprises: at least one contact element (9) which is arranged to come into contact with a counterpart contact element on the cable plug-in connector side by achieving a plug-in connection and thus to provide a signal transmission via the plug-in connection, a contact element carrier (7), the at least one contact element (9) being received by the contact element carrier (7) and thus fixed in the built-in plug-in connector (2, 42), and A housing cup (1) into which the contact element carrier (7) is at least partially inserted, the housing cup (1) being made of a material having a Shore A hardness in the range of 60 to 100.

2. The built-in plug-in connector (2, 42) according to claim 1, characterized in that The material consists at least predominantly of plastic.

3. The built-in plug-in connector (2, 42) according to claim 2, characterized in that The plastic is one of the following thermoplastics: Polypropylene, Polyethylene, Polyurethane, or Polystyrene.

4. The built-in plug-in connector (2, 42) according to any one of claims 1 to 3, characterized in that The housing tank (1) has: Housing cover (4), an insertion-side end (5), in which an insertion opening (6) extends, through which the contact element carrier (7) is at least partially inserted into the housing pot (1), and A housing bottom (10) extends in which at least one ejection opening (11) extends, through which the contact element (9) is at least partially ejected out of the housing cup (1).

5. The built-in plug-in connector (2, 42) according to claim 4, characterized in that The at least one ejection opening (11) having a geometry that corresponds at least in part to the geometry of a cross-sectional area of ​​the at least one contact element (9) extending through the at least one contact element (9) orthogonally with respect to the longitudinal axis, extends within the housing bottom (10) and has an area that is less than or equal to the cross-sectional area of ​​the at least one contact element (9), and / or A region of the housing bottom (10) extending into the at least one ejection opening (11) is provided which abuts against the contact element (9), the contact element (9) being at least partially pushed through the at least one ejection opening (11), so that a press fit is formed over the entire thickness of the housing bottom (10) between the region and the contact element (9) at least partially pushed through the at least one ejection opening (11), wherein: The region extending into the at least one ejection opening (11) is not opened by the ejected contact element (9), The thickness of the housing bottom (10) is in the range of 0.5 mm to 3 mm, and / or The press fit is designed to be impermeable to water and / or air.

6. The built-in plug-in connector (2, 42) according to claim 4, characterized in that The contact element carrier (7) has: an insertion opening (8, 8A, 8B) which is provided for inserting the cable plug-in connector, The inner space of the contact element carrier extends from the insertion opening (8, 8A, 8B) to an end piece spaced apart from the insertion opening (8, 8A, 8B), the end piece Provides a stop for the inserted cable plug-in connector, and having at least one contact element receiving opening, and A connecting flange (15) is arranged at the insertion opening.

7. The built-in plug-in connector (2, 42) according to claim 6, characterized in that The insertion-side end (5) of the housing tank (1) has a flange-like protrusion (14). placed against the connection flange (15) of the contact element carrier (7), and / or Can be placed against a mounting plate, The flange-shaped protrusion (14) has a shape and extent that is at least essentially the same as the connecting flange (15) of the contact element carrier (7), with the result that the flange-shaped protrusion (14) placed against the connecting flange (15) of the contact element carrier (7) ends at least essentially flush with the connecting flange (15) of the contact element carrier.

8. The built-in plug-in connector (2, 42) according to claim 7, characterized in that A radially projecting connecting strip (16) is formed on the flange-like projection (14), on the outer end of which a sealing plug (17) is fastened, the outer diameter of which is slightly larger than the inner diameter of the insertion opening (8, 8A, 8B) of the contact element carrier (7), with the result that when the sealing plug (17) is pushed into the insertion opening (8, 8A, 8B), a press fit is formed between the sealing plug (17) and the region extending into the insertion opening (8, 8A, 8B), a full-surface gripping tab (18) protrudes on the side of the sealing plug (17) opposite to the connecting strip (16), and / or The press fit formed between the sealing plug (17) and the region extending into the insertion opening (8, 8A, 8B) is impermeable to water and / or air.

9. The built-in plug-in connector (2, 42) according to claim 8, characterized in that The flange-like protrusion (14) has a rectangular shape, and the radially protruding connecting strip (16) is formed on the corner of the flange-like protrusion (14), wherein the radially protruding connecting strip (16) is formed on the corner of the flange-like protrusion (14) so ​​that an angle in the range of 120 degrees to 140 degrees is formed between the longer sides of the two sides of the flange-like protrusion (14) forming the corner.

10. The built-in plug-in connector (2, 42) according to claim 9, characterized in that A separation element (19) is arranged on the outer side (13) of the housing bottom (10), wherein the separation element (19) The contact element (9) rises further upward from the housing bottom (10) than the contact element (9) at least partially pushed through the at least one ejection opening (11), and / or The separating element (19) extends on the housing bottom (10) such that a radial extent of the separating element (19) on the housing bottom (10) is smaller than or equal to a radial extent of the housing bottom (10).

11. The built-in plug-in connector (2, 42) according to claim 10, characterized in that The following parts of the housing tank (1) are constructed in one piece: The housing cover (4), the housing bottom (10) and the insertion side end (5), The housing cover (4), the housing bottom (10), the insertion-side end (5) and the flange-shaped protrusion (14), The housing cover (4), the housing bottom (10), the insertion-side end (5), the flange-like protrusion (14), the radially protruding connecting strip (16) and the sealing plug (17), or The housing cover (4), the housing bottom (10), the insertion-side end (5), the flange-like projection (14), the radially protruding connecting strip (16), the sealing plug (17) and the separating element (19).

12. The built-in plug-in connector (2, 42) according to claim 11, characterized in that The integrally formed part of the housing cup (1) is made of a material having a Shore A hardness in the range of 60 to 100. The integrally formed part of the housing cup (1) is produced by an injection molding method, pressing or vulcanization.

13. The built-in plug-in connector (2, 42) according to any one of claims 1 to 3, characterized in that The contact element carrier (7) is made of a material with a Shore D hardness in the range of 60 to 100.

14. The built-in plug-in connector (2, 42) according to claim 4, characterized in that Three contact elements (9) are received by the contact element carrier (7), and / or Three ejection openings (11) extend in the housing bottom (10).

15. A housing tank (1), characterized in that: It is used for a built-in plug-in connector (2, 42) according to any one of claims 1 to 14.

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