Shielding plate and plug connector part having the shielding plate

Abstract

The invention relates to a shielding plate (1, 1') with an opening (7) surrounding the insulator (11) through which a cylindrical insulator (11) of a plug connector part (10) passes for the installation of a printed circuit board. The shielding plate (1, 1') is designed to be elastic in the direction of the axis of the opening (7) and has angled lugs (2, 2') at its opposite edges, said lugs comprising wings (3, 4) arranged in a zigzag manner and with a central opening (8). The edges (14) of the lugs (2, 2) formed by the wings (3, 4) engage in a locking recess (21). Safe transport protection is ensured in one embodiment by an additional pin (9) in the opening (8), used as a counter hook. The plug connector part (10) with the shielding plate (1, 1') has an insulator (11) for a printed circuit board (18) and a fixing flange (12). The flange (12) includes locking receiving areas (20) on either side for the lugs (2, 2').

Description

[Technical Field]

[0001] The present invention relates to a shielding plate through which a cylindrical insulator of a plug connector part can pass for installation on a printed circuit board, the shielding plate having an opening surrounding the cylindrical insulator, configured to be elastic in the direction of the axis of the opening, and having angled lugs on opposite edges. The present invention also relates to a plug connector part having such a shielding plate. [Background technology]

[0002] For two-component device connectors mounted on a printed circuit board, the cable shield is typically attached to the printed circuit board via multiple components: a cable shield, a knurled cable nut, a housing socket / plug connector component, and the printed circuit board. The plug connector component is an insulator with an adjacent flange that has a metal anchor plate for fastening to the printed circuit board and transmitting force. The insulator with the flange is an integrated component. The plug connector component with the insulator is typically passed through a connecting socket on the housing wall. The connecting socket is used to connect an external plug that can be inserted into and secured by the knurled nut. To establish contact between the shield and the printed circuit board through the socket, a shielding plate is used that surrounds the insulator and establishes electrical contact between the anchor plate and the printed circuit board. The shielding plate compensates for installation tolerances as widely as possible, thus ensuring continuous contact between the socket on the housing wall and the printed circuit board. At the same time, to achieve good durability using such a shielding plate, stress between the components must be minimized. The plug components mounted on the printed circuit board usually need to be coupled via an insulator to a connecting socket arranged on the housing wall, and this connection must be compensated for due to tolerance-affected production processes, which is usually achieved by means of spring elements, which are implemented by elastic shielding plates. Summary of the Invention [Problem to be solved by the invention]

[0003] Therefore, the problem addressed by the present invention is to provide a method for improving processing and installation capabilities. [Means for solving the problem]

[0004] This problem is solved according to the invention by a shielding plate according to claim 1 and by a plug connector part comprising such a shielding plate according to claim 6. Further advantageous embodiments can be found in the respective dependent claims.

[0005] Thus, the shielding plate according to the present invention has specially configured lugs, each of which has a first flank and a second flank adjacent to the first flank, both of which form oblique planes / surfaces and, due to their zigzag configuration in side view, form a detent edge located between the wings and facing inward toward the other lug. The advantage of this configuration of the shielding plate with lateral lugs including the inward detent edge is that the joining direction and joining force are exclusively from above, making retroactive installation of the shielding plate possible. Therefore, in the assembly manufacturing process, the shielding plate can be snapped onto the plug connector parts as a final step. Furthermore, a zero-play system is ensured for correct positioning during the installation process, which is important for achieving the best possible volume resistance of the contacts. A further aspect is the protection or safety during transportation, even in the event of tampering. The shielding plate according to the invention can be pressed onto the insulator of the plug connector part, and due to the second oblique plane, the abutment surface on the flange can expand the lug, which can automatically return to the detent position after the dead point is eliminated. Similarly, the automatic readjustment / adduction of the elastic lug provides a zero-play system. The detent edge can be continuous or intermittent, thereby providing one or multiple detent points.

[0006] According to a further embodiment, a central opening is provided in the wing that encompasses the detent edge, thereby forming two lateral webs that are connected to each other at the free ends of the lugs via the lateral webs in the second wing. A shield plate configured in this way with resilient lugs requires less material and improves the resilience of the lugs during the installation process. Furthermore, this configuration improves the positioning of the shield plate and the detent edge.

[0007] In order to prevent detachment due to manipulation and possibly even total dropping from the plug connector part during transport of the plug connector part with the shield plate already attached and the resilient lug latched to the flange of the plug connector part, according to a particularly preferred embodiment, a peg is provided which is located in the second plane, extends away from the transverse web into the second flange, protrudes into the opening and protrudes beyond the detent edge. The peg serves as a barbed hook in a corresponding recess of a detent receptacle on the flange of the plug connector part in the event of unintentional detachment. For this purpose, the peg advantageously protrudes only slightly beyond the detent edge. "Slightly" is understood to mean that the length of the peg is adapted to the recess and does not necessarily utilize the entire available free space.

[0008] The operation of the pegs is further improved by arranging the pegs diagonally relative to each other in both openings, i.e. not exactly opposite each other, so that the shielding plate is arranged rotationally symmetrically around the opening.

[0009] A particular advantage of this shield plate configuration arises in connection with plug connector parts having two oppositely arranged detent receptacles on the flange, which are engaged by detent edges of associated lugs. The detent receptacles are conveniently formed as recesses on the flange, whereby the detent edges of the lugs engage on the upper and lower edges of the recesses, respectively. Here, depending on the above-mentioned configuration of the shield plate lugs (which may or may not have a central opening), only one detent edge and one recess, or multiple recesses and multiple detent edges, may be provided. However, this configuration may result in the shield plate becoming disconnected.

[0010] To prevent this, the peg on the shield plate conveniently protrudes into the recess and has a predetermined length such that when the two wings contact the upper and lower edges of the recess, the peg does not contact the upper wall adjacent to the upper edge of the recess, and when the shield plate moves away from the metal anchor plate in the axial direction of the insulator, the peg is supported on the upper wall to act as a barbed hook.

[0011] According to a further preferred embodiment of the plug connector part, the detent receptacle has vertical webs and recesses on both sides, whereby the webs engage in the central openings of the lugs of the shielding plate and the detent edges of the lateral webs enter the recesses, thus achieving good positioning of the shielding plate, which is further improved by the pegs.

[0012] The oblique planes / surfaces on the shield plate allow for direct installation from only one connection direction. Furthermore, the oblique planes automatically ensure that the shield plate is correctly positioned on the flange. The pegs, acting as barbed hooks, maintain the shield plate's position even under reverse transport conditions or in the event of improper handling. The inherent play of the pegs is also directly compensated for by the associated oblique planes when the load is released. The diagonal orientation of the pegs ensures maximum protection in all directions during transport, while the oblique planes minimize play, ensuring precise positioning. Further advantages include the ability to install and disassemble at any time due to the defined contact points, the lack of unwanted disassembly due to the two pegs, and the flat configuration in the installed state.

[0013] The features and combinations of features set forth in the above description and the features and combinations of features set forth below in the description of the drawings and shown only in the drawings may not only be used in the combinations specified respectively, but may also be used in other combinations or individually. All of the features and / or advantages emerging from the claims, the specification or the drawings, including structural details, spatial arrangements and method steps, may be essential to the invention both individually and in various combinations. [Brief explanation of the drawings]

[0014] [Figure 1] Figure 1 shows two perspective views of two embodiments of a shielding plate: Figure 1A is a perspective plan view of a first shielding plate; Figure 1B is a perspective view from below of the first shielding plate; Figure 1C is a perspective view from above of a second shielding plate with pegs; and Figure 1D is a perspective view from below of the second shielding plate. [Figure 2]Figure 2A is a schematic view showing a step of installing a first shielding plate according to Figures 1A and 1B. Figure 2B is a schematic view showing a step of installing a first shielding plate according to Figures 1A and 1B. Figure 2C is a schematic view showing a step of installing a first shielding plate according to Figures 1A and 1B. Figure 2D is a schematic view showing a step of installing a first shielding plate according to Figures 1A and 1B. Figure 2E is an enlarged view of the shielding plate in the final position. [Figure 3] Figure 3A shows the installation end position of a second variant of the shielding plate according to Figures 1C and 1D, and Figure 3B is an enlarged perspective view of the installed shielding plate. [Figure 4] 4A and 4B are overall and enlarged side views of the shielding plate when an axially upward load is applied to the shielding plate by lifting it up, respectively. [Figure 5] FIG. 10 shows the final position of the housing and printed circuit board, with the shielding plate held in place only by the installation situation. DETAILED DESCRIPTION OF THE INVENTION

[0015] FIG. 1 shows the basic form of the shielding plate 1 in FIGS. 1A and 1B, and an extended form of the shielding plate 1′ with an additional peg 9 in FIGS. 1C and 1D. Both shielding plates 1 and 1′ have a central opening 7 through which an insulator 11 (FIG. 2) can pass. The shielding plates 1, 1′ have an elastic, rather than planar, form on the upper side. To this end, in an exemplary embodiment, the shielding plates have two opposite elastic wings 13 that protrude from the surface and are pressed downward in the final installation position. The shielding plates 1, 1′ have a longitudinal and transverse direction, with the elastic wings 13 arranged transversely and bent lugs 2, 2′ located at two opposite ends in the longitudinal direction. Each of the lugs 2, 2′ has a first wing 3 and a second wing 4 angled relative to the first wing, resulting in a zigzag configuration in side view. The first and second wings 3, 4 thus form a first oblique plane / surface 5 and a second oblique plane / surface 6. Between the first and second wings 3, 4, the angled configuration forms a detent edge 14 facing inward in the direction of the oppositely located lugs 2, 2'. A central opening 8 extending from the first wing 3 to the second wing 4 is located in the lugs 2, 2'. This forms lateral webs 15 on the right and left sides of the central opening 8, and transverse webs 16 at the free ends of the lugs 2, 2'. The extended embodiment of the shielding plate 1' has a peg 9 protruding from the transverse web 16 into the opening 8 and located in the plane 6 of the second wing 4. The peg 9 protrudes slightly beyond the detent edge 14, but its length does not reach the level of the upper edge 17 of the opening 8. The shielding plates 1, 1' are arranged rotationally symmetrically around the opening 7, whereby the pegs 8 are arranged on the lugs 2, 2' on the shielding plate 1' so that they face diagonally opposite each other, rather than opposite each other. The surface 28 is used to establish electrical contact with the anchor plate 26 in Figure 2.

[0016] FIG. 2 shows a plug connector component 10 having an insulator 11 with a flange 12 having opposing anchor plates 26 that secure the plug connector component 11 to a printed circuit board 18 (not shown). The insulator 11 and flange 12 are integrally formed. The downwardly projecting contact pins 19 and anchor plates 26 are soldered onto the printed circuit board 18. The flange 12 has detent receptacles 20 on either side of the flange 12, each having a recess 21 that engages the detent edge 14 of the shield plates 1, 1′ in the end position. FIG. 2A shows the shield plate 1 after the insulator 11 has passed through the opening 7. In FIG. 2B, the shield plate 1 contacts the upper edge of the detent receptacle 20 via the second wing 4. Due to the beveled surface of the second wing 4, the lugs 2, 2' bend outward (FIG. 2C) and then, in the final position, are latched into the recess 21 via the detent edge 14 (FIG. 2D). The detent edge 14 located in the recess 21 can be seen in the enlarged view of FIG. 2E. The first wing 3 and the second wing 4 contact the edge 22 of the recess 21 via their beveled surfaces 5 and 6, respectively.

[0017] Figure 3 shows shield plate 1, with corresponding enlarged details shown in Figures 3A and 3B. Here, and Figure 3B, flat surfaces 5 and 6 are shown in contact with edge 22 of recess 21, with detent edge 14 protruding into recess 21 and peg 9 protruding from transverse web 16, said peg in this position being spaced apart from upper wall 23 of recess 21. Anchor plate 26 has a central recess through which detent receptacle 20 protrudes, which in the end position makes electrical contact on the upper side with shield plate 1' or shield plate 1.

[0018] Figure 4 shows an example of tampering in which the shielding plate 1' is pulled upwards in Figures 4A and 4B. To prevent the shielding plate 1' from slipping out of the recess, which may occur in the event of deformation of the shielding plate 1, a peg 8 is provided. As can be seen in particular in Figure 4B, said peg acts as a barbed hook and abuts against the upper wall 23. This prevents the detent edge 14 from slipping out of the recess 21.

[0019] Finally, Figure 5 shows the plug connector part 10, together with the insulator 11, being inserted into a socket 25 arranged on the housing wall 24 in order to connect a plug (not shown). The socket 25 presses against the shielding plates 1, 1' via its lower edge, holding them firmly in the mounted state. The pegs 9 shown in Figures 4 and 1 are therefore no longer required as a fastening means during transport, nor as a means of protection against manipulation. In the mounted state, the shielding plates 1, 1' have a flat configuration and can be disassembled at any time, with the two pegs 9 preventing undesired disassembly in the case of the shielding plate 1'. [Explanation of symbols]

[0020] 1, 1' shield plate 2, 2' lug 3 First Wing 4. The Second Wing 5. First diagonal plane / surface 6 Second oblique plane / surface 7 Central opening 8 Central opening 9 Pegs 10 Plug connector parts 11 Insulators 12 flange 13 Elastic Wing 14 Detent Edge 15 Side web 16 Cross-web 17 Upper edge 18 Printed Circuit Board 19 downward protruding contact pin 20 Detent Receptacle 21. Hollow 22 Edge 23 Upper Wall 24 Housing Wall 25 sockets 26 Anchor plate 27 Vertical Web 28 Surface

Claims

1. A plug connector part (10) having an insulator (11) having plug contacts for electrical connection to a further plug connector part, a shielding plate (1, 1') surrounding the insulator (11), the shielding plate (1, 1') allowing the insulator (11) of the plug connector part (10) to pass through for installation on a substrate, the shielding plate (1, 1') having an opening (7) surrounding the insulator (11), the shielding plate (1, 1') being configured to be elastic in the direction of the axis of the opening (7), the shielding plate having angled lugs (2, 2') at opposite edges, each lug (2, 2') having a first wing (3) and a second wing (4) adjacent to the first wing, each of the first wing and the second wing having an oblique plane (5, 6). and a fixing flange (12) adjacent to the insulator (11) and having anchor plates (26) arranged on opposite sides of the insulator (11) for attachment to a printed circuit board (18), the fixing flange (12) being provided with detent receptacles (20) for latching the detent edges (14) of the associated lugs (2, 2'), the fixing flange (12) being provided with anchor plates (26) arranged on opposite sides of the insulator (11) for attachment to a printed circuit board (18).

2. 2. The plug connector part (10) according to claim 1, characterized in that the detent edges (14) of the associated lugs (2, 2') respectively engage with at least one recess (21) of the associated detent receptacle (20), said recess having at least an upper edge and a lower edge (22).

3. 3. The plug connector part (10) according to claim 2, wherein the peg (9) located in the oblique plane (6) of the second wing protrudes into the recess (21) and has a predetermined length such that, when the first wing (3) and the second wing (4) contact the upper edge (22) of the recess (21), the peg does not contact an upper wall (23) adjacent to the upper edge (22) of the recess (21), and when the shielding plate (1') moves away from a metal anchor plate (26) in the axial direction of the insulator (11), the peg is supported on the upper wall (23) to act as a barbed hook.

4. 4. A plug connector part (10) according to any one of claims 1 to 3, characterized in that the detent receptacle (20) has a vertical web (27) and has recesses (21) on both sides.

5. 2. A plug connector part (10) according to claim 1, characterized in that each wing (3, 4) has a central opening (8) which encompasses the detent edge (14), thereby forming two lateral webs (15) which are connected to each other at the free ends of the lugs (2, 2') via a transverse web (16) on the second wing (4).

6. 6. A plug connector part (10) according to claim 5, characterized in that the pegs (9) located in the oblique plane (6) of the second wing (4) protrude from the transverse webs (16) of the second wing (4) into the central opening (8) and beyond the detent edges (14).

7. 7. A plug connector part (10) according to claim 6, characterized in that the peg (9) projects only slightly beyond the detent edge (14).

8. 8. A plug connector part (10) according to claim 6 or 7, characterized in that the pegs (9) are arranged diagonally relative to one another in both openings (8).

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