Cable plug connector with improved latching

Abstract

This invention relates to a cable plug connector comprising a plug body including a coupling portion and a receiving cavity extending in the outer wall of the plug body, the receiving cavity being configured as a half-shell without a channel leading to the interior of the plug body. The cable plug connector further includes a mechanical retaining element comprising an insertion end, a locking portion, an actuating portion, and a fastening portion. The mechanical retaining element is positioned in the receiving cavity, the insertion end being inserted into a receiving slot of the receiving cavity, and the fastening portion being configured as a protrusion disposed on the actuating portion on a side facing away from the coupling portion in the axial direction. The cable plug connector further includes a fixing element disposed on the plug body, positioned rearward of the actuating portion when viewed from the coupling portion in the axial direction, such that movement of the fastening portion perpendicular to the axial direction is restricted, thereby preventing the insertion end from dislodging from the receiving slot.

Description

Technical Field

[0001] The present invention relates to a cable plug connector configured to provide a mechanically lockable plug-in connection with a built-in plug connector, which mates with the cable plug connector as a mating element. Background Technology

[0002] Cable connectors with latches inserted into recesses on the outer wall of a plug body are known from the prior art, wherein the latch provides mechanical locking with an internal plug connector designed to mate with it. The recess has at least one channel leading to the interior of the cable connector, into which a front part of the latch is inserted to movably position the latch within the recess. However, to prevent the latch from slipping out of the recess on the plug body, the latch is held on the plug body of the cable connector by means of a retaining element.

[0003] In existing cable connectors, a latch is typically held in a recess in the plug body by means of an O-ring, which is pushed onto the plug body and above the latch located in the recess of the plug body. In addition to its holding function, the O-ring also functions to seal the recess of the plug body relative to the surrounding air when the cable connector is inserted into the opening of the built-in plug connector to provide a plug-in connection.

[0004] In the case of existing cable connectors, it is disadvantageous to require such sealing of the recess on the plug body, because otherwise moisture, such as from the surrounding air, may enter the interior of the plug body through the recess, which may cause corrosion of the plug contacts located there and / or even cause a short circuit.

[0005] Besides the time-consuming assembly of O-rings, another specific drawback of using O-rings as sealants is their limited lifespan. O-rings are typically made of rubber or plastic and become brittle, crack, and leak over time, especially under mechanical stress.

[0006] As an alternative to or supplement to sealing the recess with an O-ring, the passage leading to the interior of the plug body is typically sealed with a sealant (such as a sealant paste). However, applying a sealant requires additional steps, which makes the assembly of existing cable connectors more time-consuming and therefore more expensive.

[0007] Therefore, there is a need for a cable plug connector in which the interior of the plug body can be easily, effectively and permanently sealed in a recess for latching. Purpose of the invention

[0008] Therefore, one object of the present invention is to provide a cable plug connector that overcomes the disadvantages of the prior art.

[0009] Another object of the present invention is to provide a cable plug connector in which the interior of the plug body can be easily, effectively and permanently sealed in a recess for latching.

[0010] These objectives are achieved by obtaining at least a portion of the features of the independent claims. The dependent claims describe features that further shape the invention in an alternative or advantageous manner. Summary of the Invention

[0011] This invention relates to a cable plug connector configured to provide a mechanically lockable plug-in connection with a built-in plug connector, which mates with the cable plug connector as a mating element. The cable plug connector includes: a plug body comprising a coupling portion configured to insert axially into an opening in the built-in plug connector to provide a plug-in connection; and a receiving cavity extending in an outer wall of the plug body, wherein the receiving cavity is configured as a half-shell without a channel leading to the interior of the plug body.

[0012] The cable plug connector also includes a mechanical retaining element comprising an insertion end, a locking portion, an actuating portion, and a fastening portion. The mechanical retaining element is positioned within a receiving cavity, the insertion end is inserted into a receiving slot within the receiving cavity, and the fastening portion is configured as a protrusion disposed on the side of the actuating portion facing away from the coupling portion in the axial direction.

[0013] The cable plug connector also includes a retaining element disposed on the plug body. When viewed axially from the coupling portion, the retaining element is positioned behind the actuating portion, restricting the axial movement of the fastening portion and preventing the insertion end from dislodging from the receiving slot. In other words, the retaining element positioned above the fastening portion forms a mechanical stop for the fastening portion, allowing it to move only upwards perpendicular to the axial direction, thus retaining the mechanical retaining element within the receiving cavity.

[0014] Since the cable plug connector according to the invention comprises a (generally) cylindrical shape, the outer wall of the plug body can also be described as a side surface or sheath of the plug body, wherein the sheath of the plug body extends around the central axis of the plug body. As is generally described for a cylindrical body, the direction of the central axis and therefore the longitudinal extension direction of the sheath of the plug body corresponds to the axial direction of the plug body. In this case, the insertion direction of the cable plug connector in the opening of the built-in plug connector also corresponds to the axial direction.

[0015] The phrase "perpendicular to the axial direction" in the context of this application is not necessarily understood as perfectly perpendicular, but rather as providing a certain degree of freedom for deviation. For example, when pressure is applied to the actuating portion, the mechanical retaining element moves into the receiving cavity according to a rotational movement about a rotational axis extending through the receiving slot and the insertion end located therein, and rises out of the receiving cavity accordingly according to the rotational movement about the rotational axis when the pressure is removed. Therefore, the movement performed by the fastening portion also corresponds to this rotational movement, which largely corresponds to movement perpendicular to the axial direction, but can deviate slightly from perfectly perpendicular movement depending on the design of the components involved. Furthermore, the relevant components of the cable connector according to the invention may be installed with some "gaps," i.e., they can move slightly back and forth, which may also lead to movement deviating from perfectly perpendicular movement.

[0016] The cable plug connector of the present invention has the following advantages over prior art cable plug connectors: because the fastening portion is arranged at the rear end of the mechanical retaining element (also called a latch), and the fixing element is correspondingly arranged on the plug body in this region behind the mechanical retaining element as a stop for the fastening portion, the receiving cavity can be configured as a half-shell without a channel / opening leading to the interior / inner side of the plug body. Specifically, in the prior art cable plug connector, the receiving slot is provided with a channel leading to the interior space of the plug body, for example, to ensure the corresponding insertion depth of the insertion portion. In the cable plug connector according to the present invention, the receiving slot can be configured without a channel leading to the interior of the plug body, while the insertion end can still be effectively held in the receiving slot and thus the mechanical retaining element can be held in the receiving cavity.

[0017] Because the receiving cavity is separated from the interior of the plug body in a watertight and / or airtight manner, when the cable plug connector is inserted into the built-in plug connector / socket connector / connector socket, the plug contacts located inside the cable plug connector are protected from corrosion or short circuits, especially corrosion or short circuits caused by (air) moisture, and the interior of the plug body does not need to be separately sealed from the receiving cavity.

[0018] Compared to prior art cable plug connectors, the absence of an additional seal between the plug body and the receiving cavity in the cable plug connector according to the invention advantageously results in savings in additional material costs for additional sealing components / sealants (e.g., made of plastic or rubber) or sealant (e.g., made of PTFE), additional workload and longer production time due to more production steps, and the necessary additional employees or production lines. Therefore, the production / assembly of the cable plug connector according to the invention can be simpler, more efficient, and more cost-effective than prior art cable plug connectors.

[0019] Furthermore, since there are no sealing components for sealing, there is no issue of sealing components becoming brittle or cracking over time and thus losing their sealing effect. This means that the sealing effect provided by the cable plug connector according to the invention is effective for a long time.

[0020] In an exemplary embodiment of the cable plug connector according to the invention, the mechanical retaining element can be configured to provide a locking mechanism, since the locking portion engages in the mating portion of the retaining element of the built-in plug connector, and axial movement in the pull-out direction of the cable plug connector is blocked.

[0021] The locking portion can be configured as a protrusion / hook that engages in a corresponding recess / cavity in the built-in plug connector, and thus, when the locking mechanism is not released, the protrusion / hook contacts the recess when the cable plug connector is pulled out of the built-in plug connector, thereby preventing the cable plug connector from being unintentionally pulled out. An advantage of this implementation is that, for example, if a person trips over the cable and pulls on it accordingly, the cable plug connector cannot be pulled out of the plug-in connection with the built-in plug connector.

[0022] In another exemplary embodiment of the cable plug connector according to the invention, the mechanical retaining element may further include a tensioning element, wherein the tensioning element may apply a preload to the mechanical retaining element to position the mechanical retaining element in the receiving cavity, thereby causing the locking portion to protrude from the receiving cavity.

[0023] In another exemplary embodiment, the tensioning element may be configured as a spring, compressible plastic, compressible sponge material, or compressible foam material.

[0024] In another embodiment, the tensioning element may be arranged between the bottom of the receiving cavity and the actuating portion.

[0025] In another embodiment, the tensioning element can extend from the bottom of the receiving cavity into the recess of the actuating portion, such that the tensioning element abuts against the bottom of the recess, thereby applying a preload to the mechanical retaining element.

[0026] In another embodiment, by applying pressure to the actuating portion, the tensioning element can be compressible, allowing the mechanical retaining element and thus the locking portion to be lowered into the receiving cavity, thereby causing the locking portion to be removed from the retaining element mating portion when the locking portion engages in the retaining element mating portion.

[0027] In another embodiment, the front portion of the receiving cavity may extend axially into the coupling portion, such that when the coupling portion is inserted into the opening of the built-in plug connector, the front portion of the receiving cavity is located inside the built-in plug connector, while when the coupling portion is inserted into the opening of the built-in plug connector, the rear portion of the receiving cavity may be located outside the built-in plug connector.

[0028] In another embodiment, the receiving slot may be disposed on the front of the receiving cavity.

[0029] In another embodiment, the locking portion may protrude from the receiving cavity in the front, such that when the coupling portion is inserted into the opening of the built-in plug connector, the locking portion can engage in the retaining element mating.

[0030] In another embodiment, the rear portion of the receiving cavity may include a peripheral edge projecting perpendicularly to the axial direction from the rear portion of the receiving cavity. The peripheral edge of the rear portion of the receiving cavity may form a mechanical stop configured to contact the built-in plug connector when the coupling portion is inserted into the opening of the built-in plug connector, thereby limiting the insertion depth of the coupling portion in the opening of the built-in plug connector.

[0031] In another embodiment, when viewed from the coupling portion in the axial direction, the locking portion can be configured to tilt upwards, wherein the locking portion can be configured such that during the insertion of the coupling portion into the opening of the built-in plug connector in the axial direction, the edge of the opening of the built-in plug connector can slide along the tilted upwards locking portion, such that the locking portion and thus the mechanical retaining element are lowered into the receiving cavity.

[0032] The advantage of these embodiments of the cable plug connector according to the invention is that the mechanical retaining element is movably positioned in the receiving cavity such that when the coupling portion is inserted into the opening of the built-in plug connector, if the locking portion encounters a stop in the built-in plug connector (e.g., the edge of the opening of the built-in plug connector), the locking portion and thus the mechanical retaining element are automatically pressed downward into the receiving cavity, while the tensioning element located below the mechanical retaining element is compressed.

[0033] Once the coupling portion has reached the intended position in the built-in plug connector (for example, this might be the case when the peripheral edge protruding from the rear of the receiving cavity touches the built-in plug connector) and the locking portion has reached below the recess of the built-in plug connector configured to receive the locking portion, the pressure on the locking portion, and therefore on the mechanical retaining element, decreases. The tensioning element automatically expands again, and the locking portion moves into the recess, activating the locking mechanism. To unlock the locking mechanism again, pressure can be applied to the actuating element, which compresses the tensioning element again, causing the locking portion to lower out of the recess of the built-in plug connector.

[0034] In another embodiment, the half-shell can be configured to prevent water and / or gas from seeping into the interior of the plug body. Specifically, portions of the plug body forming the half-shell and the base can be welded, fused, etc., to each other, or the half-shell can be made from a single piece / solid component (and therefore without slots / openings / leaking contact points, etc.). As already mentioned, an advantage of this embodiment is that the interior of the plug body does not need to be separately sealed relative to the receiving cavity, and when the cable plug connector is inserted into the built-in plug connector, the plug contacts / contact pins located inside the cable plug connector are still protected from corrosion or short circuits, particularly due to corrosion or short circuits caused by (air) moisture.

[0035] In another embodiment, the cable plug connector may further include a connecting nut that can be screwed onto the threads of the plug body, wherein the threads may be located at the end of the plug body opposite the coupling portion in the axial direction. On the one hand, this additionally prevents the infiltration of water and / or air into the rear end of the cable plug connector, particularly in the area of ​​the cable entry opening; on the other hand, the cable inserted into the cable plug connector through the cable entry opening is additionally supported or protected by the connecting nut / groove to prevent bending / breakage.

[0036] In another embodiment, the cable plug connector may also include a plug insert therein, wherein the plug insert may be configured such that the cable plug connector includes one of the following cable plug connector types: three-pole power plug connector type (e.g., powerCON plug from Neutrik AG of Liechtenstein), SPE (Single Pair Ethernet), USB-C, IEC, XLR, RJ45, HDMI, USB or RCA.

[0037] Because the cable plug connector according to the invention obtains its plug type through a plug insert / inlet, the cable plug connector can be configured to be substantially the same around the plug insert for each plug type. This means that many steps in the assembly of the cable plug connector can be performed in a single production line. Furthermore, the same assembly parts can be used for a large number of different connector types.

[0038] In another embodiment, the fixing element may include, or may be composed of, metal. This gives the fixing element both excellent stability and good flexibility. Furthermore, the fixing element can be easily manufactured, for example, by stamping it from a sheet of metal. If a lightweight metal is used to manufacture the fixing element, it can also be very lightweight.

[0039] In another embodiment, the fixing element may include two legs, wherein each leg of the fixing element may have a widening at its end, wherein the corresponding widening at the end of the leg may engage in a corresponding recess in the plug body, thereby blocking movement of the fixing element in a direction perpendicular to the axial direction.

[0040] In another embodiment, the plug body may include two grooves on its outer wall extending radially around the plug body from the receiving cavity, wherein corresponding recesses of the plug body may be located at corresponding ends of the two grooves, wherein a fixing element may be arranged on the plug body such that one of the two legs of the fixing element is located in one of the two grooves of the plug body, and a corresponding widening at the end of the corresponding leg engages in the corresponding recess of the plug body, thereby blocking movement of the fixing element in a direction perpendicular to the axial direction.

[0041] In another embodiment, the fixing element may include a notch in a central portion between the two legs, wherein the fixing element may be arranged on the plug body such that a fastening element extends into the notch of the fixing element, wherein the movement of the fastening portion perpendicular to the axial direction may be restricted by the central portion of the fixing element.

[0042] In another embodiment, when observing the cross-sectional area extending through the plug body, the two recesses of the plug body may be located opposite each other on the outer wall of the plug body.

[0043] The advantage of these embodiments of the cable plug connector according to the invention is that, after the other components of the cable plug connector according to the invention are arranged, the double-leg retaining element can be easily pushed onto the plug body. As the retaining element is being pushed onto the plug body, the two legs of the retaining element are pressed laterally, causing the retaining element to bend slightly upward, thereby applying a certain clamping force to the retaining element. When the widened leg ends of the retaining element reach the recess on the outer wall of the plug body, the widened leg ends engage there and the previously applied clamping force decreases, in particular, disappears completely. Therefore, no clamping force / tension acts on the retaining element during installation. Therefore, to remove the retaining element from the plug body, the retaining element must be pulled so forcefully that the widened portion of the leg ends is lifted from the recess, and the two legs of the retaining element bend upward again. Thus, the retaining element can be arranged simply but very stably on the plug body. Attached Figure Description

[0044] The invention will now be described in more detail by way of example only, with reference to the schematic examples shown in the accompanying drawings. The same elements are labeled with the same reference numerals in the drawings. The described embodiments are generally not shown to scale and should not be construed as limiting the invention. Specifically,

[0045] Figures 1A to 1C Exemplary embodiments of the cable plug connector according to the present invention are shown from different perspectives;

[0046] Figure 2 An exemplary embodiment of the plug body of a cable plug connector according to the present invention is shown;

[0047] Figure 3 An exemplary embodiment of the fixing element of the cable plug connector according to the present invention is shown;

[0048] Figure 4 A schematic diagram of a cross-section of a cable plug connector according to the present invention is shown;

[0049] Figure 5 A schematic diagram of a longitudinal cross-section of a cable plug connector according to the present invention is shown. Detailed Implementation

[0050] Figures 1A to 1C An exemplary embodiment of the cable plug connector 1 according to the present invention shown includes a cylindrical plug body 2, wherein a plug insert 25 is mounted in the inner cavity 6 of the plug body 2, and wherein the plug insert 25 is configured such that the cable connector 1 shown is an RJ45 plug. In principle, different plug inserts 25 can be inserted into the interior 6 of the plug body 2, so that the cable plug connector 1 according to the present invention can have different connector types.

[0051] The contacts of the RJ45 plug shown can be accessed by plug openings located on the cover surface of the cylindrical plug body 2, wherein the contacts and mating contacts can be made into contact by inserting the coupling portion / segment 3 into the opening of the built-in plug connector. A mechanical retaining element 7 or latch is embedded in a receiving cavity 4 extending in the outer wall 5 of the plug body 2, wherein the front portion 19 of the receiving cavity 4 extends into the coupling portion 3 and the rear portion 20 of the receiving cavity is located behind the coupling portion 3.

[0052] The latch 7 is configured and positioned in the receiving cavity 4 with a locking portion 9 protruding from the front 19 of the receiving cavity 4 at an angle. The locking portion 9 is beveled so that the coupling portion 3, together with the locking portion 9, can be pushed into the opening of the built-in plug connector, and the locking portion 9 is pushed below a stop located in the opening, so that the entire latch 7 is pressed downward into the receiving cavity. Then, when the locking portion 9 reaches the correspondingly shaped recess on the built-in plug connector, the locking portion automatically snaps upward and engages in the recess due to the tension applied to the latch 7 by the spring 16, thereby providing a locking mechanism.

[0053] Furthermore, the latch 7 has an actuation portion 10 (also referred to as a button) which, when viewed from the coupling portion 3 in the axial direction 14, is located behind the locking portion 9. Pressure is applied to the actuation portion 10 to compress the spring 16 located below, so that the locking portion 9 can be lowered again outside the recess of the built-in plug connector and thus the locking mechanism can be released.

[0054] To prevent the locking portion 9 from being pushed too deeply into the built-in plug connector beyond the recess, and also to ensure that the RJ45 contacts can make trouble-free contact with the mating contacts, the plug body 2 has a protrusion 21 that at least partially surrounds the rear portion 20 and forms a stop to prevent the plug body 2 from being pushed too deeply into the built-in plug connector beyond the coupling portion 3.

[0055] To prevent the latch 7 from being squeezed out of the receiving cavity 4 by the preload applied by the spring 16, causing the insertion end 8 to slide out of the receiving slot 12 of the receiving cavity 4 and thus disengaging the latch 7 from the receiving cavity 4, the cable connector 1 has a double-leg retaining element 15, which is inserted and clamped in a groove 34 that extends in the outer wall 5 of the plug body 2 and at least partially surrounds the plug body 2, such that when viewed from the coupling portion 3 in the axial direction 14, the movement of the fastening portion 11 arranged on the rear side 13 of the actuating portion 10 to the outside of the receiving cavity 4 is blocked, thus retaining the latch 7 in the receiving cavity 4. Furthermore, the cable connector 1 has a connecting nut 22 screwed onto the rear end 24, which further seals the interior 6 of the plug body 2 and also provides kink protection for cables inserted into the interior 6 of the plug body 2 through the cable entry opening 37.

[0056] Figure 2 An exemplary embodiment of the plug body 2 of the cable plug connector 1 according to the present invention is shown. It can be seen here that the receiving cavity is designed as a half-shell, wherein the half-shell does not have a channel leading to the interior 6 of the plug body. Figure 2 Two grooves 34 are also shown extending radially along the outer wall 5 of the plug body 2 from the receiving cavity 4, particularly from the rear 20 of the receiving cavity 4. A thread 23 for the connecting nut 22 is provided at the rear end 24 of the plug body 2.

[0057] Figure 3 An exemplary embodiment of a fixing element 15 of a cable plug connector 1 according to the present invention is shown, wherein the fixing element 15 includes two legs 26, 27, wherein each leg 26, 27 of the fixing element 15 has a widening portion 28, 29 at its leg end 30, 31. Furthermore, the fixing element 15 includes a recess 35 in a central portion 36 located between the two legs 26, 27.

[0058] Figure 4A schematic diagram of a cross-section of the cable plug connector 1 according to the present invention is shown. The cross-section shown corresponds to a cut through the cable connector 1 along a cross-sectional area extending perpendicular to the axial direction 14. In other words, the cross-section shown is a frontal view when viewed from the coupling portion 3 in the axial direction 14.

[0059] Figure 4 The diagram shows that the half-shell 4 has no channel / opening leading to the interior 6 of the plug body 2. Furthermore, the arrangement of the fixing / fastening / locking element 15 on the plug body 2 is shown, wherein the corresponding widened portions 28, 29 of the leg ends 30, 31 engage in corresponding recesses 32, 33 of the plug body 2, thereby blocking the movement of the fixing element 15 in a direction perpendicular to the axial direction 14. Additionally, the fastening portion 11 is shown located in a recess 35 in the central portion 36 arranged between the two legs 26, 27 of the fixing element 15, wherein the movement of the fastening portion 11 perpendicular to the axial direction 14 is restricted by the central portion 36 of the fixing element 15.

[0060] Figure 5 A schematic diagram of a longitudinal section of a cable plug connector 1 according to the present invention is shown. The longitudinal section shown corresponds to a cut along a longitudinal section region through the cable connector 1, the longitudinal section region extending such that the longitudinal axis of the cable connector 1 (e.g., the central axis of the cable connector 1 extending in the axial direction 14) is formed by the longitudinal section region.

[0061] Figure 5 The receiving cavity 4, configured as a half-shell, has no passage leading to the interior 6 of the cable connector 1. Specifically, the receiving slot 12 and base 17 of the half-shell 4 have no openings through which water and / or gas can seep from the half-shell 4 into the interior 6 of the plug body 2. A spring 16 extends from the base 17 of the half-shell 4 into the recess 18 of the actuating portion 10, applying a preload to the latch 7 such that the inclined / angled / oblique locking portion 9 protrudes from the half-shell 4.

[0062] To prevent the preload provided by spring 16 from lifting the latch 7 so far from the half-shell 4 that the insertion end 8 slides out of the receiving slot 12 and thus the latch 7 completely disengages from the half-shell 4, the degrees of freedom of movement of the fastening portion 11 (movement about the longitudinal axis perpendicular to the axial direction 14 or perpendicular to the longitudinal axis of the cable connector 1), and therefore the entire degrees of freedom of movement of the latch 7, are restricted by the fixing element 15. When viewed from the coupling portion 3 in the axial direction 14, the fastening portion 11 is arranged on the rear side 13 of the actuating portion 10. Therefore, when viewed from the coupling portion 3 in the axial direction 14, the fixing element 15 is also arranged behind the actuating portion 10 on the plug body 2. The movement of the latch 7 downward toward the base 17 of the half-shell 4 but also away from the half-shell 4 corresponds to a rotational movement about a rotational axis passing through the insertion end 8 and the receiving slot 12.

[0063] Although the invention has been described above with reference to some preferred embodiments, it should be understood that many modifications and combinations of different features of these embodiments can be made. All such modifications are within the scope of the appended claims.

Claims

1. A cable plug connector (1) configured to provide a mechanically lockable plug-in connection with a built-in plug connector, the built-in plug connector mating with the cable plug connector (1), wherein the cable plug connector (1) comprises: The plug body (2) includes a coupling portion (3) and a receiving cavity (4) extending in the outer wall (5) of the plug body (2), wherein the coupling portion (3) is configured to be inserted into the opening of the built-in plug connector in the axial direction (14) to provide the plug-in connection, and the receiving cavity (4) is configured as a half-shell without a channel leading to the interior (6) of the plug body (2); A mechanical retaining element (7) includes an insertion end (8), a locking portion (9), an actuating portion (10), and a fastening portion (11), wherein the mechanical retaining element (7) is positioned in the receiving cavity (4), the insertion end (8) is inserted into the receiving slot (12) of the receiving cavity (4), and the fastening portion (11) is configured as a protrusion arranged on the side (13) of the actuating portion (10) facing away from the coupling portion (3) in the axial direction (14); A fixing element (15) is arranged on the plug body (2) and, when viewed from the coupling portion (3) in the axial direction (14), the fixing element (15) is arranged behind the actuating portion (10) such that the movement of the fastening portion (11) perpendicular to the axial direction (14) is restricted, thereby preventing the insertion end (8) from moving out of the receiving slot (12).

2. The cable plug connector (1) according to claim 1, wherein, The mechanical retaining element (7) is configured to provide a locking mechanism because the locking portion (9) engages in the retaining element mating of the built-in plug connector and is blocked from axial movement in the pull-out direction of the cable plug connector (1).

3. The cable plug connector (1) according to claim 1, wherein, The mechanical retaining element (7) further includes a tensioning element (16) which applies a preload to the mechanical retaining element (7) to position the mechanical retaining element (7) in the receiving cavity (4), thereby causing the locking portion (9) to protrude from the receiving cavity (4).

4. The cable plug connector (1) according to claim 3, wherein, The tensioning element (16) is configured as a spring, compressible plastic, compressible sponge material or compressible foam material.

5. The cable plug connector (1) according to claim 3, wherein, The tensioning element (16) is arranged between the bottom (17) of the receiving cavity (4) and the actuating part (10).

6. The cable plug connector (1) according to claim 5, wherein, The tensioning element (16) extends from the bottom (17) of the receiving cavity (4) into the recess (18) of the actuating portion (10), such that the tensioning element (16) abuts against the bottom of the recess (18), thereby applying the preload force to the mechanical retaining element (7).

7. The cable plug connector (1) according to claims 2 and 5, wherein, By applying pressure to the actuating portion (10), the tensioning element (16) is compressible, allowing the mechanical retaining element (7) and thus the locking portion (9) to be lowered into the receiving cavity (4), thereby removing the locking portion (9) from the retaining element mating when the locking portion (9) engages in the retaining element mating.

8. The cable plug connector (1) according to claim 1, wherein, The front portion (19) of the receiving cavity (4) extends into the coupling portion (3) in the axial direction (14) such that when the coupling portion (3) is inserted into the opening of the built-in plug connector, the front portion (19) of the receiving cavity (4) is located inside the built-in plug connector, while when the coupling portion (3) is inserted into the opening of the built-in plug connector, the rear portion (20) of the receiving cavity (4) is located outside the built-in plug connector.

9. The cable plug connector (1) according to claim 8, wherein, The receiving slot (12) is arranged in the front (19) of the receiving cavity (4).

10. The cable plug connector (1) according to claims 2 and 8, wherein, The locking portion (9) protrudes from the receiving cavity (4) in the front portion (19) such that when the coupling portion (3) is inserted into the opening of the built-in plug connector, the locking portion (9) can engage in the retaining element mating.

11. The cable plug connector (1) according to claim 8, wherein, The rear portion (20) of the receiving cavity (4) includes a peripheral edge (21) projecting from the rear portion (20) of the receiving cavity (4) perpendicular to the axial direction (14), the peripheral edge (21) of the rear portion (20) of the receiving cavity (4) forming a mechanical stop, the mechanical stop being configured to contact the built-in plug connector when the coupling portion (3) is inserted into the opening of the built-in plug connector, thereby limiting the insertion depth of the coupling portion (3) in the opening of the built-in plug connector.

12. The cable plug connector (1) according to claim 1, wherein, The half-shell (4) is configured to prevent water and / or gas from seeping into the interior (6) of the plug body (2).

13. The cable plug connector (1) according to claim 1, wherein, The cable plug connector (1) also includes a connecting nut (22) which is screwed onto the thread (23) of the plug body (2), wherein the thread (23) is located at the end (24) of the plug body (2) opposite to the coupling portion (3) in the axial direction (14).

14. The cable plug connector (1) according to claim 1, wherein, The cable plug connector (1) further includes a plug insert (25) inside (6), wherein the plug insert (25) is configured such that the cable plug connector (1) includes one of the following cable plug connector types: a three-pole power plug connector type (e.g., the powerCON plug from Neutrik AG of Liechtenstein); SPE; USB-C; IEC; XLR; RJ45; HDMI; USB; or RCA.

15. The cable plug connector (1) according to claim 1, wherein, The fixing element (15) includes or is composed of metal.

16. The cable plug connector (1) according to claim 1, wherein, The fixing element (15) includes two legs (26, 27), wherein each leg (26, 27) of the fixing element (15) has a widened portion (28, 29) at its leg end (30, 31), wherein the corresponding widened portion (28, 29) of the leg end (30, 31) engages in a corresponding recess (32, 33) of the plug body (2), thereby blocking the movement of the fixing element (15) in a direction perpendicular to the axial direction (14).

17. The cable plug connector (1) according to claim 16, wherein, The plug body (2) includes two grooves (34) on its outer wall (5), the two grooves (34) extending radially around the plug body (2) from the receiving cavity (4), wherein the corresponding recesses (32, 33) of the plug body (2) are located at the corresponding ends of the two grooves (34), wherein the fixing element (15) is arranged on the plug body (2) such that one of the two legs (26, 27) of the fixing element (15) is located in one of the two grooves (34) of the plug body (2), and the corresponding widened portions (28, 29) of the corresponding leg ends (30, 31) engage in the corresponding recesses (32, 33) of the plug body (2), thereby blocking the movement of the fixing element (15) in a direction perpendicular to the axial direction (14).

18. The cable plug connector (1) according to claim 16, wherein, The fixing element (15) includes a notch (35) in a central portion (36) between the two legs (26, 27), wherein the fixing element (15) is arranged on the plug body (2) such that the fastening element (11) extends into the notch (35) of the fixing element (15), wherein the movement of the fastening portion (11) perpendicular to the axial direction (14) is restricted by the central portion (36) of the fixing element (15).

19. The cable plug connector according to claim 17, wherein, When viewed through the cross-sectional area of ​​the plug body (2), the two recesses (32, 33) of the plug body (2) are located opposite each other on the outer wall (5) of the plug body (2).

20. The cable plug connector (1) according to claim 1, wherein, When viewed from the coupling portion (3) in the axial direction (14), the locking portion (9) is configured to tilt upward, wherein the locking portion (9) is configured such that during the insertion of the coupling portion (3) into the opening of the built-in plug connector in the axial direction (14), the edge of the opening of the built-in plug connector slides along the tilted upward locking portion (9), thereby lowering the locking portion (9) and thus the mechanical retaining element (7) into the receiving cavity (4).

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