This application is the US-national stage of PCT application PCT/EP2020/070960 filed 24 Jul. 2020 and claiming the priority of German patent application 102019120276.0 itself filed 26 Jul. 2019.
The invention relates to an adapter plug having two sockets connected to one another by conductors having, for example, crimped female contacts or the like, where the contacts are in the sockets and can be connected to external plugs.
DE 10 2016 004 170 describes a plug-in connection with play compensation, in which a plug part with play-compensating attachment is mounted on a base part. This design is individual parts fastened to one another but not forming a closed structural unit that could easily be installed in an opening of a housing.
The object of the invention is to eliminate this disadvantage and to provide a compact adapter unit.
The object of the invention is attained in that the sockets are in a holder, and in that the plugs and/or sockets are formed to be play-compensating with respect to the holder in the X- and/or Y-directions transversely to the holder.
In order to compensate for play in the Y-direction, the sockets have latching lugs engaging into respective latch apertures in the holder, and the latch apertures are larger in the Y-direction than the latching lugs. In order to achieve the required play compensation, the latch apertures in the holder are formed such that the socket can move parallel to the Y-direction (see definition of the axis system in
In order to compensate for play in the X-direction, contacts formed as pins in the sockets and/or the plug are narrower than the width of the associated female contacts on the plug and/or the sockets. The play compensation in the X-direction could be solved in a similar manner as the design in the Y-direction. However, this would have the disadvantage that the sockets would then also have to be displaced in the X-direction by the predetermined play compensation value in the holder. Since this space is often not present, the inventive approach was chosen to engage into box contacts with pin contacts/pins (for example in the width of 4.8 mm), provided in principle for a larger pin width (for example a pin width to 6.3 mm). In this way, an offset of the pins or pin contacts of approximately 10% relative to the larger pin width (for example ∀ 0.6 mm) can be accommodated in the X-direction.
In a further development of the invention, the conductors extended along arcs in the holder. In this case, depending on the tolerance position of the conductor length and the housing dimensions, the flexible conductors are deformed into an arc. In the extreme case (shortest possible cutting length combined with maximum housing dimension), the arc in the conductor is in each case greater than 0, so that no tension is produced on the locking of the contacts. It is also conceivable for the conductors to be inserted either before and/or after assembly into the socket of the flange or by a device (preferably automated) in a meandering manner in order to facilitate the assembly process in the holders.
In a further development of the invention, the holder is of U-section and has retaining clips distributed over its outer surface that fix the holder in the opening of a housing. In order to ensure a firm fit of the adapter plug in the housing of an electronic device, retaining clips are provided on three sides that clamp the holder in the housing without play. As a result of the pressure load on the holder frames, the U-shaped holder is slightly compressed in the X-direction, which in turn would be disadvantageous for the clearance of the sockets in the Y-direction. Reinforcement of the holder is not possible in this region, since space must be available for receiving the conductors. Decoupling slots have therefore been installed between the regions of the retaining clips and the regions of the latch apertures or recesses of the latches. This prevents the sockets floating in the Y-direction from being fixed by deformation of the holder and thus being impeded in their function.
Projecting mounting ears that can be fastened to the housing by screw eyelets are attached to the holder. Furthermore, at least one latching wedge is provided at a spacing from the mounting ears, this latching wedge clamping the holder in the opposite direction to the mounting ears on a shoulder of the housing such that axial fixing of the adapter plug is provided in both directions. When inserted in a groove-like recess, the locking wedge can also serve as a rotation-inhibiting lock of the holder in the housing.
Embodiments of the invention are shown in simplified form in the drawings in which:
In
Angularly extending decoupling slots 8 are formed between the region of the retaining clip 5 and the adjoining end regions holding the sockets 3 and 4. They prevent deformation in the region of the sockets 3 and 4 of the holder 2 due to the radial pressure of the retaining clips 5, so that they can continue to move freely in the Y-direction. The extent of the movement possibilities of the sockets 3 and 4 in the holder 2 in the Y-direction are shown in
The possibilities of movement in the X-direction are shown in
Conductors 12 crimped for example to the contacts 11 fixed in the sockets 3 and 4 extend between these contacts 11. As shown in particular in
As shown in
Axial fixing takes place via mounting ears 14 that can be fastened by screws in one direction. Fixing in the opposite direction takes place by a locking wedge 15 (see in particular
Number | Date | Country | Kind |
---|---|---|---|
102019120276.0 | Jul 2019 | DE | national |
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/EP2020/070960 | 7/24/2020 | WO |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2021/018773 | 2/4/2021 | WO | A |
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Number | Date | Country | |
---|---|---|---|
20220271474 A1 | Aug 2022 | US |