EP3756245B1 - Printed circuit board plug-in connector comprising a shielding connection element - Google Patents

Description

The invention is based on a printed circuit board connector with a shield connection element according to the preamble of independent claim 1.

Printed circuit board connectors are required in device connection technology. They are usually soldered to a printed circuit board on the connection side, which is located in a housing of an electrical device, d. H. in a device housing. An associated electrically conductive connector installation housing can be built into a housing wall of the device housing. When the device is installed, the plug-in area of the insulating body of the circuit card connector dips into the connector installation housing, but is not fixed to the connector installation housing in order to ensure mechanical tolerance compensation between the circuit board and the housing wall, which is necessary for device construction. However, for grounding and shielding reasons, a reliable electrically conductive ground connection is required between the connector installation housing and the printed circuit board. This can e.g. B. be produced by a screen connection element.

State of the art

The pamphlet DE 10 2010 051 954 B3 shows a circular connector that is provided with its connection side for contacting printed circuit boards. To dampen the crosstalk, an electrically conductive shield cross is provided which is conductively connected to a ground connection on the printed circuit board. The shield cross is surrounded by a likewise cross-shaped contact carrier, in the inclined inner edges of which receiving grooves are provided for holding the electrical contacts. About this cruciform arrangement is the pushed electrically non-conductive round body, which is ultimately in turn surrounded by an electrically conductive connector installation housing.

It is also disclosed that the insulating round body has a circumferential groove approximately in the middle of its length, into which a shielding spring is inserted, with the shielding spring, which can be designed in particular as a spiral spring, on the one hand the electrically conductive shielding cross and on the other hand the contacted the round body surrounding and electrically shielding connector installation housing. This connector installation housing can be installed in the form of a front panel insert in an electrically conductive device housing and can be connected to a mating connector supplied from the outside.

The pamphlet DE 10 2012 105 256 A1 shows a comparable printed circuit board connector. In this case, a spring ring is shown, which obviously has a suitable contour in order to make electrical contact on the one hand with the shielding cross and on the other hand with a connector installation housing into which the insulating body is plugged.

Furthermore, the pamphlet shows DE 103 47 306 B4 a shield connection between a circuit board accommodating electrical and/or electronic components, which is arranged in a housing, and at least one connection socket arranged in a wall of the housing and having a metal, cylindrical socket casing. The shield connection consists of a metal, ring-shaped shield connection element, which has contact pins protruding away from the plane of the ring on one side of the ring for the mechanical and electrical connection to the circuit board and spring legs on the other side of the ring for contacting the socket jacket. The socket jacket of the connector installation housing is pushed in between these contact pins coaxially to the shield connection element.

Finally, the pamphlet shows WO 2017/133224 A1 a shielding element for a connector that makes conductive contact with a connector installation housing. In particular, it can be a stamped and bent part made of sheet metal. The shielding member is band-shaped and arranged to extend at least partially around a wall of the connector extending in the mating direction.

This shielding element has one or more tabs protruding inwards and outwards at an acute angle in order to electrically contact the connector installation housing, to electrically contact a shielding cross arranged in an insulating body and/or to fix the shielding element to the insulating body. Furthermore, the shielding element has a printed circuit board connection element for connection to a ground contact on a printed circuit board.

With this design, the tolerance range mentioned at the outset between the printed circuit board and the corresponding device housing wall can in principle be increased. A disadvantage of the tabs used in this case can be seen in the fact that they press against the connector installation housing with only relatively little force. Depending on the materials used, slight deformation of the material of the shielding element may also occur over a long period of time with this design, which further reduces the contact pressure and thus the electrical conductivity of this contact.

In the prior art, there is a constant need for a shield connection that is as electrically reliable and highly conductive as possible, which also enables the largest possible mechanical tolerance range between the device housing and a printed circuit board arranged therein. Furthermore, it has proven to be disadvantageous during device assembly It has been proven that particularly high forces and the associated mechanical stresses act on the printed circuit board when a large number of insulators attached to it are simultaneously inserted into the respective connector installation housing.

• DE 20 2015 100 245 U1 , JP 2015-56299 A , US 2014/0141634 A1 ,
• US 7,168,987 B1 , US 2014/0113490 A1 und US 2018/0013240 A1 .

The German Patent and Trademark Office has researched the following prior art in the priority application for the present application:

• DE 20 2015 100 245 U1 , JP 2015-56299 A , U.S. 2014/0141634 A1 ,
• U.S. 7,168,987 B1 , U.S. 2014/0113490 A1 and U.S. 2018/0013240 A1 .

The pamphlet DE 20 2015 100 245 U1 shows a jack assembly comprising a shielded printed circuit board jack integrated into a flange or other housing geometry. A contact carrier designed as an insulating body is inserted into the flange. A plurality of electrically conductive contacts are arranged in the contact carrier and are shielded by means of a shielding plate provided in the contact carrier. The shielding plate establishes contact with the flange designed as a shielding housing by means of contact elements. When inserted in the contact carrier, the shielding plate causes contact both in the radial alignment and in the axial alignment with the flange by means of contact elements designed as spring strips. DE 20 2015 100 245 U1 discloses the preamble of claim 1.

task

The object of the invention is to specify a shield connection element that ensures a particularly reliable and electrically well-conducting ground connection over a geometric tolerance range that is as large as possible and can be defined particularly well.

This object is solved by the features of independent claim 1.

A printed circuit board connector has a shield connection element.

The shield connection element is used for electrical contacting of a connector installation housing with a ground connection of a printed circuit board by a mechanical interaction of the shield connection element with an insulating body of the printed circuit board connector.

The shield connection element has at least one flat deformation section.

Furthermore, the printed circuit board connector has a connector installation housing that consists at least partially of metal.

In addition, the printed circuit board connector has an insulating body that has a through slot into which the shield connection element is inserted.

The insulating body is arranged with its plug-in area in the connector installation housing and the shield connection element makes electrical contact with its contact sections protruding radially from the insulating body on both sides from the inside at two opposite points in order to electrically contact the connector installation housing with the ground connection of the printed circuit board.

Advantageous refinements of the invention are specified in the dependent claims.

Advantageously, the deformation section is used for mechanical and electrical contacting of the connector installation housing, which is advantageously electrically conductive and preferably consists at least partially of metal. For this purpose, the deformation section can deform elastically in the plane of its deformation section, hereinafter referred to as the deformation plane, with the application of a corresponding restoring force and thus press against the connector installation housing with a contact force corresponding to the restoring force, in order to enable electrical contacting with a corresponding conductance. In particular, the deformation section can have at least one, preferably two, to form the deformation section corresponding contact areas against the connector installation housing.

In particular, the shield connection element can be stamped out of a particularly resilient sheet metal. It is particularly advantageous that the deformation section in particular can then be adapted particularly well to the respective requirements that are placed on the printed circuit board connector, and which are explained in more detail below, in terms of its corresponding elasticity and the contour of its contact areas by means of the associated stamping die.

In particular, the shield connection element can be a stamped and bent part.

The shield connection element is preferably made in one piece and can therefore be produced very easily and inexpensively. The shield connection element is advantageously formed from an electrically conductive and preferably resilient material and has at least the said flat deformation section. In particular, the entire shield connection element can have a flat shape.

The planar shape of at least the deformation section is particularly advantageous since the shield connection element, if z. B. is accommodated in an insulator, completely, or at least with the flat deformation section, can be aligned in the plug-in direction. The shield connection element protrudes with its two contact areas from the insulating body.

As a result, the deformation section of the shield connection element can deform elastically when the insulating body is inserted into a connector installation housing in the plane of deformation and thus mechanically and electrically, applying the desired restoring force as a contact force by means of the, e.g. B. in stamping technology particularly well adjustable, contact contour of its contact areas particularly advantageous with the connector housing without tilting. Due to the resilient material and its easily determined shape, the shield connection element can press against the connector installation housing with the desired contact force in particular with its contact areas with the elastic deformation taking place in the deformation plane and thus make electrical contact with it with the desired high conductance.

The shield connection element is preferably formed from a particularly spring-elastic sheet metal, particularly stamped out. The deformation level then corresponds to the sheet metal level, i. H. an elastic deformation advantageously takes place in the plane of the metal sheet—and not, as is customary in the prior art, at an angle, in particular at right angles thereto.

If the entire shield connection element is designed to be flat, it can be produced particularly inexpensively because the time-consuming production step of bending is no longer necessary.

In individual advantageous configurations, however, the shield connection element can be curved or angled, in particular bent, in some areas that do not belong to the deformation section.

The deformation section can include, for example, spring arms on which contact sections are advantageously formed.

A ground contact pin, for example, which is used for making contact with the ground contact of a printed circuit board, can be considered as an area that is not counted as part of the deformation section. This ground contact pin is advantageous because in this way the connector installation housing is electrically conductively connected to the ground of the printed circuit board, i. H. can be connected to the ground of the printed circuit board.

The shield connection element can interact particularly advantageously with the insulator, in particular by at least partially extending through a corresponding through-slot of the insulator, for example with its flat deformation section, in particular with its at least one contact area.

The shield connection element preferably has two contact areas which are arranged in particular opposite one another.

At least one, at least two, at least three, at least four, at least five, at least six, ... at least n contact areas and in particular exactly two, exactly three, exactly four, exactly five, exactly six, ... exactly n are hereby disclosed Contact areas, where n stands for every natural number > 0.

Advantageously, the flat shield connection element, or at least the flat deformation section of the shield connection element, lies in one plane, namely the deformation plane, which advantageously coincides with the slot plane of the through slot when installed. Advantageously, this slot plane is in the direction of insertion of the Insulator aligned.

The shield connection element is able to generate a mechanical contact force necessary for electrical contacting of the connector installation housing in the form of a counterforce to an elastic deformation, with this deformation taking place in said deformation plane.

In other words, the shield connection element generates the necessary contact force through elastic deformation taking place in the deformation plane, with the entire shield connection element or at least its flat deformation section, in which this elastic deformation possibly takes place, lying in the deformation plane.

Thus, the shield connection element is able to generate a mechanical contact force necessary for electrical contacting of the connector installation housing through elastic deformation, which takes place in said deformation plane.

The shield connection element can have at least one, preferably several, in particular two contact sections. For example, in the assembled state, the contact sections can each protrude from the insulating body with a contact area belonging to the respective contact section, in order to make mechanical and electrical contact with the connector installation housing and, in particular, to spring against an inner area of the connector installation housing so as to be displaceable and electrically contacting within a predetermined tolerance range.

In particular, the shield connection element can have two contact areas that point in opposite directions to one another, where the two associated contact sections are arranged in the deformation plane. As a result, the connector installation housing can be electrically contacted by the shield connection element at two opposite points. Due to its flat shape, the shield connection element can apply a well-defined and, if desired, a significantly stronger contacting force between these points than is known in the prior art from functionally comparable shield elements/shield connection elements.

The printed circuit board connector can also be a circular connector, which is characterized in that its insulating body is essentially cylindrical. Then the through-slot can run at least with its flat slot section in the radial direction to the cylindrical insulating body. The shield connection element can then be arranged at least with its flat deformation section, or at least with a part thereof, in the through-slot or at least in the flat slot section of the through-slot. In this way, the shielding connection element can reach through the insulating body. The contact sections of the shield connection element can protrude from the insulating body with their contact areas, in particular in the radial direction, in order to make electrical contact with the connector installation housing. The slot level of the insulating body and the deformation level of the shield connection element are aligned parallel to the plug-in axis of the printed circuit board connector.

The passage slot of the insulating body can at least partially correspond to the shape of the shielding connection element in order to at least partially accommodate it in a form-fitting manner at least in one direction. For this purpose, the through-slot of the insulating body can be flat or at least have said flat slot section. This through slit, or at least its planar slit section, can be Case of a cylindrical insulator to be aligned radially to the insulator. The shield connection element inserted therein can then run radially to the insulating body, at least in deformation sections, in particular with its flat deformation section, so that it advantageously runs along a diameter of the cylindrical insulating body, which gives it particularly great stability.

It has been found to be particularly advantageous that the elastic deformation of the shield connection element takes place in its plane or in the plane of its plane deformation section. This effect is significantly enhanced by the at least partial arrangement of the shield connection element in the flat slot.

Advantageously, the shield connection element with its contact areas can have an electrically conductive connector installation housing that matches the insulating body, with a mechanical contact force that can advantageously be defined very precisely by the shape of the shield connection element and in particular with an associated contour of the at least one contact area that can be very easily determined in the stamping process and can therefore be adjusted very easily contact a desired path length of the plug-in area, ie over the desired tolerance range, in an electrically conductive manner. If, for example, it is desired to increase the distance over which the insulating body is pushed into the connector installation housing during assembly, it is advantageous to make the contour of the contact area somewhat flatter. As a result, the corresponding insertion forces and thus the mechanical stresses to which the printed circuit board is exposed are reduced and the said tolerance range required for device construction is increased.

If, on the other hand, the pressing force of the at least one contact area on the connector installation housing is to be increased, for example in order to increase the electrical conductivity of the ground connection, particularly in the high-frequency range, and/or to ensure the reliability of this connection even more, then the contour of the contact area can be made higher overall and possibly also steeper be. As will be explained in more detail below, the pressing force can be set by suitably designing the deformation section.

Advantageously, this design offers the person skilled in the art a large number of easily adjustable and technically easy to implement parameters in order to adapt the shield connection to the requirements of a special plug connector with a few minor changes. Furthermore, the tolerance range required for device construction can be easily defined with this design. A further advantage is that no irreversible mechanical deformation of the shield connection element takes place over a long period of time in the assembled state, which would reduce the pressing force of the shield connection element relative to the connector installation housing to an extent relevant to the conductivity of the ground connection. Finally, the plane of the plane shield connection element, or at least its plane deformation section, is aligned in the direction of action of the corresponding contact force, which also enables very high contact forces if required, with the contact force also being very easy to adjust, in particular by means of the stamping die.

Thus, due to this design, an irreversible deformation of the shield connection element is not to be expected, or at least only to a much lesser extent than is known from the prior art, ie, for example, in the case of a z. B. stamped from a sheet and from the sheet plane bent out, contact tab. At the same time, the tolerance range required for the construction of the housing can be significantly larger than, for example, in the case of a contact ring stamped out of sheet metal, which is often used in the prior art and whose ring plane is contained in a wave shape. Compared to these known designs, the shielding connection element is aligned completely or at least with its flat deformation section in the direction of insertion. The contact force thus acts in the direction of this level against the connector installation housing and thus ensures a particularly high electrical conductivity of the ground connection.

In particular, the shield connection element can be what is known as a “bended stamped part”, which is preferably stamped out of a spring-elastic sheet metal. If necessary, the shield-connecting member may be bent into a desired shape at some places that do not belong to said planar deformation portion. However, it can also be completely flat, so that—in other words—the flat deformation section extends over the entire shield connection element. By using stamping and bending technology, the shield connection element can be produced particularly cost-effectively. In the present case, the shield connection element can also be a special form of a stamped and bent part which, although stamped, in particular from a flat sheet metal, does not necessarily have to be bent, so that, strictly speaking, in an advantageous embodiment it can be combined with others To put it bluntly, it can be a pure stamped part. This has the additional advantage of being inexpensive to manufacture.

It is particularly advantageous that the aforesaid mechanical contact force and the contour of the contact area can also be adjusted very conveniently during production via the shape, in particular the punched shape, of the shield connection element. Usually the strength and the elasticity of the metal sheet is already specified or at least the same for the entire shield connection element. However, the contour of the shield connection element and in particular the shape of its contact area(s) can be defined by the stamping die. In addition, the elasticity and thus the contact force with which the contact areas are pressed against the plug-in connector housing can, as already mentioned, be adjusted very precisely and with only very little effort by means of the stamping die.

The shield connection element can have a particularly advantageous shape for this purpose. For example, the shield connection element can have two spring arms. Each of these spring arms can have two ends, namely a first end and a second end. One of said contact sections can be formed onto the first end of each spring arm. For electrical contacting of the plug connector installation housing, each contact section has said contact area with a corresponding contour, the contact areas pointing away from one another, ie outwards. If, as already indicated above, the pressing force of the at least one contact area on the connector installation housing is to be changed, for example increased or decreased, this can be done, among other things, by suitably designing the deformation section, for example by modifying the shape and/or alignment of the spring arms accordingly .

At their second end, the spring arms can be formed onto a ground contact area of the shield connection element. The ground contact area can also have at least one ground pin. This can point in the same or the opposite direction as the two contact sections, in particular if the entire shield connection element is designed to be flat. Of course, the ground pin can also be right-angled or, depending on requirements, in any desired Angle to be aligned and at the same time lie in the plane of the completely flat shield connection element.

In another embodiment, the ground contact area and / or ground pin but also - depending on the requirements of the connector and the orientation of its insulating body on the circuit board - in a different direction, z. B. at right angles or at any other angle thereto, be bent, ie point in a direction which protrudes from the plane of the deformation section, and thus not in the common plane of the contact areas (deformation plane). In the mounted state, the ground pin can have one end, for example for making electrical contact with a ground connection of a printed circuit board in the mounting direction, i. H. protrude from the insulating body in the direction of the printed circuit board when installed. In particular, the printed circuit board connector can be soldered to a ground connection provided for this purpose on the printed circuit board by means of this ground pin.

During the final assembly of the device, a plurality of insulators arranged on a printed circuit board can be pushed at least partially into an associated connector installation housing in each case. As a rule, the connector installation housings are installation housings that are installed in through-openings in a device housing wall of an electrical device. The printed circuit board is located inside the device housing. The connector installation housings consist at least partially of an electrically conductive material, in particular of a metallic material. Ideally, the device housing is also electrically conductive, for example made of a metallic material, and is electrically conductively connected to the plug-in connector installation housing by installing it and, in the finally assembled state, to the ground of the printed circuit board.

When inserting the insulating bodies arranged on the printed circuit board, in which, as already described in detail, a shield connection element is arranged, the printed circuit board can also be electrically connected to the device housing via the shield connection elements by means of a defined mechanical contact force and mechanical stresses that can be controlled accordingly and thus brought into an electrical ground connection.

The insulators can be arranged either upright or at an angle on the printed circuit board. If they are arranged upright, their plug-in direction points away perpendicularly from the plane of the printed circuit board and they can advantageously be arranged flat in an entire array, which increases their possible number. If, on the other hand, the insulators are angled, they are advantageously arranged on an edge of the printed circuit board in order to be plugged together into the associated connector installation housing by a corresponding movement of the printed circuit board.

In the following, a possible assembly of a printed circuit board connector that has such a shield connection element is described as an example:
For example, the insulating body of the printed circuit board connector can be made in two parts. Then it can have a preferably cylindrical plug-in area and a contact carrier.

For assembly, it has proven to be advantageous to point the circuit board connection side of the contact carrier upwards, ie opposite to gravity, so that the shield connection element can slide into the contact carrier with the assistance of gravity. There is a stop in the slot that ensures that the shield connection element does not fall through the Insulator can slip through.

The contact carrier is now inserted together with the shield connection element in the insertion direction in a cylindrical recess of the base body. Chamfers on the shield connection element allow it to center itself when it is inserted and automatically reaches the final installation position. In this installation position, the two spring arms of the shield connection element are inserted with the contact sections into the through-slot of the plug-in area by moving towards one another as a result of deformation. After insertion, they relax again and then, as already described, protrude radially with their contact areas from the plug-in area of the insulating body in order to mechanically and electrically contact the connector installation housing.

In a final step, the plug-in connector housing can now be pushed onto the insulator on the mating side - or, to put it the other way round, the insulator is inserted with its plug-in area into the plug-in connector housing. The spring arms of the shield connection element deflect towards each other and contact the connector installation housing with the corresponding contact force.

The shield connection element can have a ground contact pin that protrudes from the printed circuit board connection area of the contact carrier for connection to the ground contact of the printed circuit board. This ground contact can be contacted, for example, by soldering methods such as surface mount or through-hole technology, but also by press-in technology.

example

Fig. 1a, b

ein ebenes Schirmanbindungselement aus verschiedenen Blickwinkeln;

Fig. 1c

einen gewinkelter Isolierkörper mit dem darin einzufügenden Schirmanbindungselement;

Fig. 2a, b

den gewinkelten Isolierkörper mit dem darin eingefügten Schirmanbindungselement aus zwei verschiedenen Ansichten;

Fig. 2c

den gewinkelten Isolierkörper mit dem darin eingefügten Schirmanbindungselement im Querschnitt;

Fig. 3a

den Isolierkörper mit dem Schirmanbindungselement und einem Steckverbindereinbaugehäuse in einer Schrägansicht;

Fig. 3b

den Isolierkörper mit dem Schirmanbindungselement und dem Steckverbindereinbaugehäuse im Querschnitt;

Fig. 4a - c

den Isolierkörper mit getrenntem Grundkörper und Kontaktträger zum Einführen des Schirmanbindungselements;

Fig. 4d

den Kontaktträger mit dem darin aufgenommenen Schirmanbindungselement und dem Grundkörper;

Fig. 4e

Den Grundkörper mit dem eingeführten Kontaktträger mit dem darin aufgenommenen Schirmanbindungselement im Querschnitt.

An embodiment of the invention is shown in the drawings and is explained in more detail below. Show it:

Fig. 1a, b

a flat screen connection element from different angles;

1c

an angled insulating body with the shield connection element to be inserted therein;

Fig. 2a, b

the angled insulator with the inserted shield connection element from two different views;

Figure 2c

the angled insulator with the inserted shield connection element in cross section;

Figure 3a

the insulator with the shield connection element and a connector installation housing in an oblique view;

Figure 3b

the insulator with the shield connection element and the connector installation housing in cross section;

Figures 4a - c

the insulating body with a separate base body and contact carrier for inserting the shield connection element;

Figure 4d

the contact carrier with the screen connection element accommodated therein and the base body;

Figure 4e

Cross section of the base body with the inserted contact carrier with the shield connection element accommodated therein.

The figures contain partially simplified, schematic representations. In some cases, identical reference symbols are used for the same but possibly not identical elements. Different views of the same elements could be scaled differently.

the Figures 1a and 1b show a shield connection element 1 from two different views. The shield connection element 1 has two contact sections 11 which are each connected to a ground contact area 13 via a spring arm 12 . The two contact sections 11 each have a contact area 111 for mechanically and electrically contacting one in the Figure 3a shown connector installation housing 3. The two contact areas 111 are directed away from each other, so directed with their contact areas 111 to the outside.

In the embodiment shown, the shield connection element 1 is completely flat, i. H. it lies entirely in a single plane. Thus, of course, its deformation section is also designed to be flat. In this embodiment, the deformation section is formed by the two spring arms 12 with the contact sections 11 formed thereon with the associated contact regions 111 . In this embodiment, the shield connection element 1 is stamped out of a spring-elastic sheet metal. Since it is not bent, it is also referred to as a stamped part.

The outwardly directed contact areas 111 each have a defined contour. As described below, the design of the contour of the contact areas 111 and the shape, in particular the length and width as well as the orientation of the spring arms 12, enable a very precise adaptation of the special elastic properties of the deformed section of the shield connection element 1.

the 1c shows an angled insulating body 2 of a printed circuit board connector with the shield connection element 1 to be inserted therein. The insulating body 2 has a base body 20 with a substantially cylindrical plug-in area 21. The insulating body 2 also has a printed circuit board connection area 22.

The insulator 2 is made in two parts and has in addition to this base body 20 a separate contact carrier 23, which as an item in the Figures 4a - c can be seen particularly well. The contact carrier 23 also has a substantially cylindrical plug-in section 231 with which it is pushed into a substantially cylindrical recess 200 in the base body 20 . The insulator 2 also has a through slot 24 which has a planar course.

A portion of the through-slot 24 is arranged in the plug-in area 21 of the base body 20 and is guided radially through this cylindrical plug-in area 21 . Another area of the through-slot 24 runs through the contact carrier 23. The through-slot 24 is flat and is intended to accommodate the flat shield connection element 1.

In the mounted state, i.e. when the plug-in section 231 of the contact carrier 23 is accommodated in the base body 20 as shown, the through-slot 24 runs radially through the plug-in area 21 and the plug-in section 231. The shield connection element 1 inserted therein thus penetrates the insulating body 2 at its plug-in area 21.

Between the plug-in area 21 and the printed circuit board connection area 22 , the insulating body 2 has a part that belongs to the base body 20 cylindrical holding portion 25, the diameter of which is significantly larger than the diameter of the plug-in area 21. In the holding portion 25, a portion of the through slot 24 is also arranged. This area of the through slot 24 serves to accommodate the said ground contact area 13 of the shield connection element 1 . The ground contact area 13 of the shield connection element 1 is then arranged in the holding section 25 . The width of the through slot 24 corresponds to the thickness of the shield connection element 1. As a result, the shield connection element 1 is held in a form-fitting manner in the insulating body 2, at least perpendicular to the plane of the slot.

the Figures 2a, b and c show the insulating body 2 with the shield connection element 1 inserted into its through-slot 24 from two different views and in cross section. The two contact sections 11 protrude with their contact areas 111 on both sides of the plug-in area 21 from the through-slot 24 and thus from the insulating body 2 .

From the Figure 2c It can be seen that the through-slot 24 between the spring arms 12 of the inserted shield connection element 1 is guided through the plug-in section 231 of the contact carrier 23, so that the two spring arms 12 can move towards one another in an elastically deforming manner. The ground contact area 13 of the shield connection element 1 is arranged in the contact carrier 23 of the insulating body 2 and protrudes with its ground contact pin 131 from an opening provided for this purpose in the printed circuit board connection area 22 in order to make contact with a ground contact on a printed circuit board.

the Figure 3a shows the insulator 2 from the previous illustration with a metal connector installation housing 3. The connector installation housing 3 has a housing plug-in area 31 for plugging in with a mating connector and a nut 32 for Fastening and electrical connection of the connector installation housing 3 to a device housing of an electrical device (not shown). The plug-in connector housing 3 has a slightly tapering, conical profile towards its plug-in area 31 .

It is easy to see that when the insulating body 2 is pushed into the connector installation housing 3 , the contact areas 111 of the contact sections 11 that protrude radially from the insulating body come into electrical contact with the metal connector installation housing 3 .

By pushing in the plug-in area 21 of the insulating body 2 deeper, the contact sections 11 can be moved elastically towards one another according to the contour of their contact areas 111 . As a result, the shield connection element 1 applies the contact pressure required for reliable electrical contact.

the Figure 3b shows the insulating body 2 with the inserted shielding connection element 1 and the connector installation housing 3 in a cross-sectional view, the insulating body 2 having been finally inserted with its plug-in area 21 into the connector installation housing 3 . The shield connection element 1 extends radially through the insulating body 2 and makes contact with the connector installation housing 3 on both sides with its contact areas 111. The mechanical and electrical contact is represented at this point by a slight overlap. It is easy to imagine that the two spring arms 12 move elastically toward one another in the continuous, flat slot 24 when the insulating body 2 is inserted into the connector installation housing 3 and generate a pressing force/contact force in relation to the connector installation housing 3 . This contact force depends on the spring constants of the two spring arms 12 and the amount of their deflection. The deflection is in turn dependent on the shape of the contact areas 111. In particular, the force during insertion is also determined by their shape. The spring force of the two spring arms 12 is determined by their shape, in particular their length and/or width. Since the shield connection element 1 is stamped out of sheet metal, these parameters can be set very easily during production by precisely designing the stamping die.

In general terms, the planar shielding connection element 1 inserted into the insulating body 2 lies in a deformation plane which coincides with the plane of the slot. The shield connection element 1 is able to generate a mechanical contact force necessary for electrical contacting of the connector installation housing 3 in the form of a counterforce to an elastic deformation, with this deformation taking place exclusively in the deformation plane. The plane of the slot and the plane of deformation are aligned parallel to the plug-in axis of the printed circuit board connector. As a result, the shield connection element 1 cannot tilt with its contact sections 11 when it is pushed into the connector attachment housing 3 .

In the printed circuit board connection area, the through-slot 24 of the insulating body 2 has a further exit opening, through which the ground contact pin 131 is passed for electrical contacting of the ground connection, not shown, of the printed circuit board, not shown. Thus, the connector installation housing 3 can be grounded via the shield connection element 1 on the printed circuit board.

The assembly of the connector starts from the Fig. 4a - e out.

the Fig. 4a, b and c show the base body 20, the contact carrier 23 and the shield connection element 1 as separate components. During installation

Claims (12)

1. Printed circuit board plug connector, comprising a shield connection element (1), which comprises at least one planar deformation section, a plug connector installation housing (3), which consists at least in part of metal, and an insulating body (2), which comprises a passage slot (24) into which the shield connection element (1) is inserted, wherein the insulating body (2) is arranged with its plug-in region (21) in the plug connector installation housing (3) and, in order for the plug connector installation housing (3) to electrically contact the earth connection of a printed circuit board, the shield connection element (1) electrically contacts with its contact sections (111), which protrude on both sides radially out of the insulating body (2), the plug connector installation housing (3) from inside at two sites that lie opposite one another, wherein the shield connection element (1) is a stamped part, characterized in that the contact sections (111) of the shield connection element (1) contact the plug connector installation housing (3) with their stamped contour.
2. Printed circuit board plug connector according to Claim 1,
   characterized in that the shield connection element (1) is able to generate a mechanical contact force that is required for electrically contacting the plug connector installation housing (3) by means of an elastic deformation that occurs in the plane of the deformation section.
3. Printed circuit board plug connector according to one of the preceding claims,
   characterized in that the shield connection element (1) is configured as one piece.
4. Printed circuit board plug connector according to one of the preceding claims,
   characterized in that the shield connection element (1) is formed from a spring-elastic sheet metal.
5. Printed circuit board plug connector according to one of the preceding claims,
   characterized in that the deformation section has two spring arms (12), wherein in each case a contact section (11) is formed with in each case a contact region (111) on the spring arms (12), wherein the contact sections (11) are facing away from one another with their contact regions (111).
6. Printed circuit board plug connector according to one of the preceding claims,
   characterized in that the shield connection element has an earth contact region (13) on which the deformation section is formed.
7. Printed circuit board plug connector according to Claim 6,
   characterized in that on the earth contact region (13) comprises an earth contact pin (131) for contacting the earth connection of the printed circuit board.
8. Printed circuit board plug connector according to one of the preceding claims,
   characterized in that the complete shield connection element (1) is configured in a planar manner.
9. Printed circuit board plug connector according to one of the preceding claims,
   characterized in that the shield connection element (1) is inserted into the passage slot (24) of the insulating body (2) and engages with its deformation section in a radial manner through the insulating body (2).
10. Printed circuit board plug connector according to one of the preceding claims,
    characterized in that the insulating body (2) is configured at least in two parts so as to facilitate the insertion of the shield connection element (1) and thus has at least two parts, namely a base body (20) and a contact carrier (23), wherein the base body (20) comprises an essentially cylindrical recess (200) and wherein the contact carrier (23) may be inserted at least in part into the cylindrical recess (200) of the base body (20).
11. Printed circuit board plug connector according to Claim 10,
    characterized in that a region of the passage slot (24) is arranged in the plug-in region (21) of the base body (20) and in that a further region of the passage slot (24) is arranged in the contact carrier (23).
12. Printed circuit board plug connector (1) according to Claim 7,
    characterized in that the insulating body (2) comprises at a printed circuit board connection region (22) an outlet for electrically contacting an earth connection of the printed circuit board by means of the earth contact pin (131) of the shield connection element (1).

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