EP2037541A2 - Connector with circuit board - Google Patents

Abstract

The plug connector (1) has multiple wrap pins (3) and a housing (2) in which the wrap pins are arranged. The wrap pins consist of a collar (16) which is arranged between two insulators for the transmission of forces in axial direction of the wrap pins. The insulators are arranged in axial direction with form closure in the housing. A plate (5) is arranged in the housing with discrete electrical components (26) and with one of the wrap pins electrically connected to it. The plate is mechanically decoupled to the wrap pins or to the housing.

Description

The present invention relates to a connector with board.

There are D-sub filter connectors, which have a housing in which a plurality of plug contact pins are arranged. In the housing there is a circuit board. The board is provided with holes through which the plug pins extend. The plug pins are soldered to the board. On the board, a capacitor is provided for each plug contact pin, which is to filter the guided by plug pins electrical signals. The board is mechanically and electrically connected to the housing by means of a solder joint. Since the housing is connected to ground, this solder joint forms the ground connection for the board.

Such filter plug have been proven in practice, as they can be filtered with interference signals. However, the integration of a circuit board in such a miniaturized connector is problematic because such a board is sensitive to mechanical stress. When plugging a significant proportion of the insertion forces is absorbed by the board. These insertion forces lead to damage to the board and damage to the solder joints between the Plug contact pins and the board or between the board and the housing. The life of these connectors is therefore limited.

Although the integration of a circuit board in a miniaturized connector is very advantageous because a board basically allows any circuit arrangements, the variety of circuits is limited solely by the limited area of the board, such miniaturized filter plug have been formed almost exclusively without boards. There are a number of different solutions for this.

So revealed the EP 0 137 116 B1 a connector with chambers in which monolithic capacitors are arranged. The capacitors are pressed by means of a spring element against the plug contact pins so that they are electrically connected thereto. These connectors are mechanically simple and reliable. They have a long life. However, the electrical contacts between the capacitors and the plug contact pins can be released in vibration, whereby the filter characteristic is impaired. With these connectors is disadvantageous compared to connectors with integrated circuit board, that only capacitors can be brought into electrical contact with the plug contact pins and a further electrical connection is not possible.

From the EP 0 712 141 B1 goes out a connector having a plurality of parallel arranged in a grid plug contact pins. The plug contact pins are surrounded by a strip body. The strip body is designed as a filter element. It consists of a mixture of insulating material and ferrite material. This strip body forms an electrical inductance for filtering unwanted high frequency signals. This generates EMC protection. There are also separately formed tubular ferrite body, each enclose a plug contact pin to form an inductance on the plug contact pins.

From the EP 1 315 253 A1 goes out a capacitor body for a connector. The condenser body consists of a monolithic ceramic body with tubular passageways. This ceramic body is coated with metal, so that it represents with each passage a capacitor to each arranged in the passageways plug contact pins.

These attached filter elements (ferrite body, metallically coated ceramic body) have considerable tolerances in their electrical properties (inductance, capacitance). They are mechanically labile and often can not meet the required electrical properties.

The DE 198 15 488 C1 shows an electrical connector with a housing in which an insulating body is arranged. The insulating body has a recess for receiving a filter plate. In the filter plate parallel bores are formed through which each signal contacts extend therethrough. The filter disk has a common material construction in this technique. The filter disk is used to filter out unwanted interference signals on the signal lines or signal contacts before these interference signals reach the connected to the electrical connector PCB in the components located there. The filter disc is fixed by a metal plate or formed on the sheet metal spring tongues with play.

The US 4,950,185 discloses another connector having a housing, a receiving body for receiving contact pins. The contact pins extend through the plate-shaped ceramic capacitor arrays. These arrays are formed of a plate-shaped ceramic material in which electrically conductive electrodes are embedded. The contact pins are electrically connected to the electrodes by means of contact springs. These capacitor plates are surrounded by a ground electrode. This grounding electrode may be electrically connected to the grounded housing by means of contact springs. With this construction, the filter array should be decoupled from thermal and mechanical stresses and be protected against shocks.

The DE 199 44 909 A1 shows an electrical connection unit with contact pins, which are elastically and electrically coupled by means of a spring to a printed circuit board. At the side facing away from the contact pins of the circuit board is soldered to a mating terminal for crimping a ribbon cable.

The US 4,494,092 shows a connector with multiple plug pins. The plug contact pins store in a cylindrical housing. Transverse to the longitudinal extent of the cylindrical housing different disk-shaped elements are provided. The plug contact pins have shoulders which each store in a recess in a rigid plastic disc. Adjacent to this plastic disc another rigid plastic disc is arranged to retain the plug contact pins in the axial direction. Furthermore, this connector has filter elements in the form of disk capacitors.

In the DE 197 12 560 C1 is described a filter connector with shielding. This connector has a shielding metal housing. In the housing a plurality of arranged in a small grid contact elements in the form of plug contact pins are provided. The plug contact pins extend through a strip body and an insulating plate. The insulating plate has a number of the contact elements corresponding number of metallized feedthroughs. The metallized bushing merges into a contact element conductor at the top side of the insulating plate. On the upper side of the insulating plate, a ground conductor is peripherally metallized on the edge. The electrically conductive connections between the contact elements and the ground conductor constitute capacitive filter elements in the form of capacitive and / or inductive SMD elements. The edge sides and the insulating plate are provided with cutting-like reinforcements. The insulating plate is adapted in its peripheral dimensions to the dimension of the receiving opening of the shielding. The contact elements are fixed by means of press-in contact heads in the metallized feedthroughs. In an alternative embodiment, the cutting edge-like reinforcements are omitted. In this embodiment, embossed spring plates are cut on the shield, which serve to fix the insulating plate.

There is a substantial need for a miniaturized connector provided with electronic components such as capacitors and / or inductors have only small tolerances, and the connector should also be able to withstand the typical mechanical stresses caused by the mating operations and preferably also greater mechanical stresses due to vibration.

The invention is therefore based on the object to provide a connector which has a long life and also allows an electrical interconnection, which has precise electrical properties.

The object is achieved by a connector with the features of claim 1. Advantageous embodiments are specified in the subclaims.

The connector according to the invention comprises a plurality of plug contact pins, a housing in which the plug contact pins are arranged, and a circuit board, which is arranged in the housing and is electrically connected to at least one of the plug contact pins. The plug contact pins have a shoulder projecting on the circumference, and the shoulders are arranged between two insulating bodies for transmitting forces in the axial direction of the plug contact pins, and these insulating bodies are arranged in the axial direction with positive locking in the housing. The plug contact pins are fixed without tilting in the housing by means of two spaced apart insulating body. The board has discrete electrical components, e.g. Capacitors and / or coils and is mounted in the housing so that it is mechanically decoupled to the plug contact pins and / or to the housing, so that relative movements between the plug contact pins and the housing cause no tension on the board.

Due to the mechanical decoupling of the board with respect to the plug contact pins and / or the housing the insertion forces exerted during plug operations are not introduced into the board, so that the risk of damage to the board compared to conventional connectors with integrated circuit board is substantially reduced. Since the plug contact pins are fixed in the housing both in the axial direction and against tilting by the insulating body, the forces exerted on the plug contact pins are transmitted via the insulating body to the housing and kept away from the board. This extends the life of the connector compared to conventional connectors considerably.

By providing a board with discrete electronic components in the connector, it is possible to connect the plug contact pins with any electrical circuits. The variety of circuits is limited solely by the limited area of the board. On the board coils can be arranged, the inductance is much more precise than the inductance of plugged on the plug pins ferrite.

The plug contact pins are mechanically fixed in the housing by means of the insulating body. These insulators are usually made of injection molded plastic parts. These injection molded parts have mechanical tolerances, which are usually greater than the mechanical tolerances of the housing formed of metal. As a result, a game between the insulating bodies and the housing and thus between the plug contact pins and the housing can not always be completely avoided. Due to the inventive mechanical decoupling of the relative movements between the plug contact pins and the housing of the board this game causes no problems.

The mechanical decoupling of the board with respect to the plug contact pins and / or the housing can be effected by a resilient electrical connection between the board and the plug contact pins and / or the housing. This is useful if the board is electrically connected to both the plug contact pins and the housing. In an embodiment in which only an electrical connection between the plug contact pins and the board but should not exist between the board and the housing, the board is preferably arranged with play in the housing, so that the board is freely movable with respect to the housing. In special applications, the mass is not passed through the housing but via a plug contact pin.

The circuit board is preferably arranged between two insulating bodies. The insulating body can be kept at a distance by means of spacers, so that the board is arranged between the insulating bodies with play.

The arrangement of the board with game is especially useful if it is not mechanically decoupled from the plug contact pins. However, it is also in a mechanical decoupling between the board and the plug contact pins of advantage, since this avoids that caused by movements of the adjacent insulating mechanical stresses on the board.

The board can also be arranged with play to the housing, so that no tension between the housing and the board can occur.

In a further preferred embodiment of the connector according to the invention, the plug contact pins are mechanically and electrically connected to the board in each case by means of Pressfit connection. This press-fit connection does not constitute a mechanical decoupling to be provided between the board and the housing in this embodiment. The massive Pressfit connection used here forms a very durable mechanical and electrical connection between the plug contact pins and the board. On the other hand, a flexible Pressfit connection offers a slight play, so that it also contributes something to the mechanical decoupling.

In a further advantageous embodiment of the present invention, the plug contact pins are each formed from a pair of sub-pins, wherein the pairs of sub-pins are arranged at a distance from each other. The board is in this case between the sub-pins and there is an electrical connection between the board and the sub-pins formed. This electrical connection is preferably formed by an elastic element which may be attached to both the board and the sub-pins. This elastic element is for example an electrically conductive spring body.

The provision of such discontinuous plug pins allows the signal flow to pass through the circuit, i.e., electronic components are arranged in series with the plug contact pin. In continuous plug contact pins electronic components can only be connected in parallel to the plug contact pins.

Figur 1

ein erstes Ausführungsbeispiel eines erfindungsgemäßen miniaturisieten Steckverbinders in perspektivischer Ansicht,

Figur 2

den Steckverbinder aus Figur 1 ohne Gehäuse in perspektivischer Seitenansicht,

Figur 3,

den Steckverbinder aus Figur 1 in einer Explosionsdarstellung,

Figur 4

den Steckverbinder aus Figur 1 in einer Schnittdarstellung,

Figur 5

einen Steckkontaktstift des Steckverbinders aus Figur 1 in perspektivischer Ansicht,

Figur 6

einen weiteren Steckkontaktstift in perspektivischer Ansicht ,

Figur 7

ein zweites Ausführungsbeispiel eines miniaturisierten Steckverbinders in einer Schnittdarstellung,

Figur 8

ein drittes Ausführungsbeispiel eines erfindungsgemäßen Steckverbinders in perspektivischer Ansicht,

Figur 9

den Steckverbinder aus Figur 8 ohne Gehäuse in perspektivischer Darstellung, wobei der Steckverbinder zum Teil freigeschnitten ist,

Figur 10

den Steckverbinder aus Figur 8 in einer Explosionsdarstellung,

Figur 11a, 11b

eine Platine des Steckverbinders aus Figur 8 mit einer Ansicht auf die Vorder- und Rückseite,

Figur 12a, 12b, 12c,

jeweils einen Isolierkörper in perspektivischer Ansicht,

Figur 13

einen aus einem Paar Teilstifte ausgebildeten Steckkontaktstift, und

Figur 14a - 14d

jeweils eine Filterschaltung für einen Steckverbinder.

The invention will now be described by way of example in more detail with reference to the embodiments illustrated in the drawings. The drawings show:

FIG. 1

A first embodiment of a miniaturisieten connector according to the invention in a perspective view,

FIG. 2

the connector off FIG. 1 without housing in perspective side view,

FIG. 3,

the connector off FIG. 1 in an exploded view,

FIG. 4

the connector off FIG. 1 in a sectional view,

FIG. 5

a plug contact pin of the connector FIG. 1 in perspective view,

FIG. 6

another plug pin in perspective view,

FIG. 7

A second embodiment of a miniaturized connector in a sectional view,

FIG. 8

A third embodiment of a connector according to the invention in a perspective view,

FIG. 9

the connector off FIG. 8 without housing in a perspective view, wherein the connector is partially cut free,

FIG. 10

the connector off FIG. 8 in an exploded view,

Figure 11a, 11b

a board of the connector FIG. 8 with a view on the front and back,

FIGS. 12a, 12b, 12c,

each an insulating body in perspective view,

FIG. 13

a formed of a pair of sub-pins plug contact pin, and

FIGS. 14a-14d

each a filter circuit for a connector.

In the FIGS. 1 to 5 a first embodiment of a miniaturized connector according to the invention is shown.

The connector 1 comprises a housing 2 which has two housing halves 2/1 and 2/2, a set of plug contact pins 3, three insulators 4/1, 4/2, 4/3 and a circuit board 5. In the present embodiment, the plug contact pins 3 are formed at one end with a pin 6 and at the other end with a solder cup 7 ( FIG. 5 ). The pins 6 of the plug contact pins 3 are arranged in an opening of the housing 2 on a plug side 8. The solder cups 7 are arranged on a rear side 9 of the connector 1 and are here in front of a piece.

The present embodiment is a sub-D connector. However, the invention is not limited to this design. The housing 2 is an electrically conductive metal housing and can produce an electrical ground connection when plugged into a mating connector. At the plug-in side 8, the housing 2 has a plug-in sleeve 10 surrounding the pins 6, on the inside of which contact studs or dimples 11 are formed in order to produce a positive engagement with a corresponding mating connector.

The arranged on the mating side 8 insulating 4/1 is referred to below as Frontteilisolierkörper. This Frontteilisolierkörper 4/1 is a substantially e-benflächiges Plastic platelets whose outlines are slightly larger than the opening of the plug-side housing part 2/1. The Frontteilisolierkörper 4/1 has on its side facing the mating side two laterally projecting webs 12, whose outer side is adapted to the shape of the inner surface of the opening of the plug-side housing part 2/1, so that the Frontteilisolierkörper thereby positioned in the plane transverse to the insertion direction 13 is.

In the Frontteilisolierkörper 4/1 through holes 14 for receiving one of the plug contact pins 3 are formed in a conventional grid per se. The through holes 14 are steppedly widened counter to the plug-in direction 13, so that they form a recess 15 for positive reception of a respective shoulder 16 of the respective plug-in contact pin 3 on the back of Fronteilisolierkörper 4/1.

The plug contact pins have a plug-in section, which as Pin 6 ( FIGS. 5 and 6 ) or as a socket 17 ( FIG. 6 ), followed by the plug portion, the shoulder 16, a cylindrical pin portion 18 with a diameter slightly smaller than the shoulder 16, a pressfit portion 19 with knurled edges and a solder member 20. The shoulder 16 is a circumferential projection on the plug contact pin 3 with two flattened surfaces, which are formed opposite and parallel to each other. The recess 15 in the front part insulating body 4/1 has an exactly complementary shape to the shoulder 16, so that herein the shoulder 16 and thus the plug contact pin 3 is received against rotation. The Pressfitabschnitt 19 can be used as a square ( FIG. 5 ) or knurled ( FIG. 6 ) be formed. The maximum diameter of the Pressfitabschnitts 19 is not greater than the diameter of the pin portions 18. The solder member 20 may be formed as a solder cup 7 or as a solder pin. The knurled Pressfitabschnitt is preferred over the square, since it is both mechanically and electrically optimally connected to the board.

At the back of the Frontteilisolierkörpers 4/1 of the insulating body 4/2 is arranged, which is referred to below as the first Rückzugsisolierkörper 4/2. This first Rückrückisolierkörper 4/2 again has arranged in the grid of the plug contact pins 3 through holes 22. The diameter of the through holes 22 corresponds to the diameter of the pin portions 18 of the plug contact pins 3, so that the Store plug contact pins 3 with their pin sections 18 in the holes 22. The shoulders 16 of the plug contact pins 3 are against the insertion direction 13 on the first Rückteilisolierkörper 4/2, so that the plug contact pins 3 are fixed in the axial direction, since they strike in the insertion direction 13 with their shoulders 16 on Frontteilisolierkörper 4/1 and in the opposite direction to the direction of insertion 13 with their shoulders 16 on the first Rückrückisolierkörper strike 4/2.

The first Rückrückisolierkörper 4/2 has on its front two projections 23 which engage in corresponding recesses on the back of the Frontteilisolierkörpers 4/1.

At the back of the first Rückrückisolierkörpers 4/2 projections are provided at the corner areas, which serve as spacers Of these spacers 24, the further insulating body 4/3, which is referred to below as the second Rückteilisolierkörper, held at a distance from the central region of the first Rückteilisolierkörpers 4/2. In the thus formed intermediate region between the first Rückrückisolierkörper 4/2 and the second Rückteilisolierkörper 4/3 is the board 5. The board 5 is formed of a printed circuit board and arranged on the circuit boards electrical components 26. The circuit board is in turn formed with arranged in the grid of the plug contact pins 3 through holes 25. The through holes are coated on their inner surface with copper and form so-called vias. In the circuit board traces are formed, which connect the vias to the electrical components 26. These electrical components 26 are mainly capacitors and coils. They are designed as SMD components and are typically soldered and / or glued to the circuit board of the board. The printed circuit board is typically a multilayer plastic printed circuit board. However, it can also be made of ceramic. The electrical components 26 can be arranged both on the front side and on the rear side of the circuit board. In the present exemplary embodiment, the circuit board 5 has electrical components 26, namely capacitors, only on the front side facing the plug-in side. Each plug contact pin 3 is assigned a respective capacitor.

The contour of the board is such that it fits between the spacers 24 of the first rear insulating body 4/2. The surface of the first Rückrückisolierkörpers 4/2 is formed with recesses for receiving the electrical components 26. The recesses are referred to below as pockets 27. In these pockets 27, the electrical components 26 with little play space. For example, if in a later machining process where the entire connector is heated, the solder joints between individual components and the board of the board should become loose, the electrical components 26 maintain their position as they are held in position by the pockets 27, so that upon cooling the connector, the solder solidifies again and the solder joint between the electrical components and the circuit board continues to exist. The pockets 27 can also be provided with a layer of an elastomer or an elastic polymer, in which the components 26 are embedded elastically, so that they are held without play but elastic.

The plug contact pins stuck with their Pressfitabschnitten 19 in the plated-through holes 25 of the board 5 and form with this a Pressfit connection. Such pressfit connections are also referred to as press-fit contacts and are standardized in DIN 41 611 part 5 or DIN IEC 352. An essential feature of such a press-fit connection is that the pin (here: the pressfit section 19) has a larger diagonal cross-section than the through-connection 25 to be contacted. This creates when pressing the pin into a via an overpressure that is absorbed either by deformation of the via or by deformation of the pin. There are therefore two types of press-fit connections, the solid version in which the through-hole deforms and the flexible design in which the pin deforms. The Pressfit connections of the present embodiment correspond to the solid version.

The Pressfit connection is designed such that the necessary Aufsteckkräfte for attaching the board 5 on the plug contact pins 3 to form the Pressfit connection is as low as possible, so that a certain elasticity and mobility of the plug contact pins 3 is given with respect to the board 5. On the other hand, the Aufsteckkräfte be sized so large that a secure long-term mechanical and electrical connection between the plug contact pins 3 and the vias 25 of the board 5 is guaranteed. In prototypes of the present invention, it has been found that the Pressfit connection is much more suitable than a rigid solder connection, even if the mobility of the plug contact pins 3 with respect to the circuit board 5 is low.

On the rear side, the connector 1 is closed by the second Rückteilisolierkörper 4/3, which is received in a form-fitting manner in the opening of the rear housing part 2/2. The second Rückrückisolierkörper 4/3 in turn has through holes 28 through which a rear portion of the pressfit connections of the plug contact pins 3 extends.

The three insulators 4/1, 4/2, and 4/3 are arranged at a distance from each other and each positively surround the plug contact pins 3. As a result, the plug contact pins 3 are fixed in a plane transverse to the insertion direction 13 and secured against tilting.

This conductive rubber tube 29 serves as an elastic contact element 29. This elastic contact element 29 is in contact with an electrical contact surface of the circuit board and with a low bias voltage between the circuit board 5 and the rear, electrically conductive housing part 2/2. As a result, an electrical connection between the circuit board 5 and the housing part 2/2 is formed, which serves as a ground terminal. Since the contact element 29 is elastic or flexible, the connection between the board 5 and the housing 2 is mechanically decoupled.

As electrically conductive elastic or flexible contact element 29 may be provided instead of a Leitgummiröhrchens 29 also a contact element, which consists of an elastic stranded stranded wires twisted (eg in the form of a pigtail), a spring element with low spring coefficient, an elastic body which wraps of a metal fabric is, from an elasticized conductive polymer or a conductive elastomer is formed. However, any other elastic or flexible electrical connection is also suitable.

FIG. 7 shows a second embodiment of a miniaturized connector according to the invention in a sectional view. The structure of the connector 1 according to the second embodiment substantially corresponds to the structure of the connector 1 according to the first embodiment, which is why the same parts are provided with the same reference numerals. The second embodiment differs from the first embodiment only in that no second Rückrückisolierkörper is provided. The plug contact pins 3 are held in the housing 2 only by means of a first Frontteilisolierkörpers 4/1 and a single Rückteilisolierkörpers 4/2. In turn, shoulders 16 of the plug contact pins 3 are arranged between these two insulators 4/1 and 4/2, so that the plug contact pins are fixed in the axial direction. The shoulders 16 store against rotation in the corresponding recesses 15 of the Fronteilisolierkörpers 4/1. A circuit board 5 is arranged adjacent to a rear wall of the housing part 2/2. Between the board 5 and the rückwertigen housing part 2/2 a gap of about 6/10 mm is formed, in which there is an electrically conductive spring element 30, which establishes an electrical connection between the housing 2 and the circuit board 5. This spring element 30 is for example a simply angled copper sheet. It is soldered to the circuit board 5 and presses due to its spring action against the inner surface of the housing 2. In a relative movement of the plug contact pins relative to the housing 2, the board 5 is moved together with the plug contact pins 3 with respect to the housing 2. By providing the spring element 30, the electrical connection between the board 5 and the housing 2 is not interrupted even if the distance between the board 5 and the housing 2 increases a piece.

The Rückteilisolierkörper 4/2 has, as in the first embodiment at the corner regions spacers 24, which are supported on the rear corner portions of the rear housing part 2/2. As a result, plug-in forces applied to the pins 6 (arrow 31/1) of the plug contact pins 3 to the Isolierteilkörper 4/1, 4/2 (arrow 31/2) and forward from the Rückteilisolierkörper 4/2 in the housing. 2 initiated (arrow 31/3). Since the board 5 is freely movable with respect to the housing 2 and is arranged with some play in the housing 2, the insertion forces are not transmitted via the board 5. The board 5 thus remains free of tension. This ensures a long life.

A third embodiment of a miniaturized connector with integrated circuit board is in the FIGS. 8 to 13 shown. It is again a sub-D connector 1 with a housing 2 and arranged in a predetermined grid plug contact pins 3. In this embodiment, the plug contact pins 3 are each formed of a pair of sub-pins 32, 33 ( FIG. 13 ). The sub-pins 32, 33 are so-called pogo pins, ie, that they have a tubular base body 34 in which a contact pin 35 is slidably mounted. The tubular body 34 is closed at one end and at the other end of the contact pin 35 protrudes a piece. In the base body 34 is a spring element which acts on the contact pin 35. The sub-pins 32, 33 are thus elastically yielding in length by the contact pin 35 is inserted into the body 34 and inserted by means of the spring element with a corresponding counterforce.

The two sub-pins 32, 33 each have a circumferential shoulder 16, which are each provided with two laterally flattened surfaces 21. The pointing in the direction of insertion 13 part pin 32 forms in the insertion direction forward a pin 6 for insertion in a corresponding mating connector. The connector pin on the rear side arranged part pin 33 forms at its opposite to the insertion direction 13 facing the end of a soldering pin 36 which can be inserted into a corresponding hole of a printed circuit board and soldered to it.

This connector has four insulator 4. Starting from the plug-in side 8, the outer front-part insulating body 4/4, the inner front-part insulating body 4/5, the inner rear-part insulating body 4/6 and the outer back-insulating body 4/7 are successively arranged in the direction of the rear side 9. The outer insulating 4/4 and 4/7 are the same as the Frontteilisolierkörper 4/1 of the first embodiment with the outside arranged positioning webs 12 and through holes 14, which are adapted to the diameter of the respective sub-pins 32, 33 is formed.

The two inner insulating body 4/6 have substantially the same structure. They each have an outwardly facing substantially smooth surface with two recesses 23, engage in the corresponding projections of the outer insulator 4/4 and 4/7. Furthermore, through holes 22 are formed in the inner insulators 4/5 and 4/6, which expand outward in stages to a respective recess 15, which are exactly complementary to the shape of the shoulders 16 of the sub-pins 32, 33. In these recesses 15 store the shoulders 16 of the sub-pins 32, 33 against rotation. The shoulders 16 are arranged between the respective outer insulating body 4/4 and 4/7 and the respective inner insulating 4/5 or 4/6 and thereby axially fixed.

On the inside, the inner insulating 4/5 and 4/6 at their corners each inwardly facing spacers 24. The two inner insulator 4/5 and 4/6 abut each other with their spacers 24 to each other so that they define a cavity between them for receiving a circuit board 5. The board 5 is arranged with play in this cavity.

The circuit board 5 is approximately trapezoidal in shape ( FIG. 11a, 11b ), wherein it has recesses 37 at the corners, which are adapted to the shape of the spacers 24. The board 5 has on both sides of relatively large circular contact pads 38 on which abut the sub-pins 32, 33 each with their contact pins 35 with a low bias. On the side facing the plug side of the board 5 ( FIG. 11a ) is located next to each of the contact fields 38 each have a coil 39 which is electrically connected at one end to the contact pad 38 and at the other end electrically connected to another contact pad 40. These contact pads 40 are connected with so-called vias through the printed circuit board of the board with corresponding contact pads 41 on the other side of the board ( FIG. 11b ). The arranged on the back of the board 5 contact pads 41 are each electrically connected via a conductor 42 with one of the large-area contact pads 38. The coil 39 is thus connected in series with the respective sub-pins 32, 33.

In addition to each large-area contact pad 38, a capacitor 43 is arranged, which is electrically connected on the one hand to the respective contact pad 38 and on the other hand to a ground conductor 44. The ground conductor 44 is formed on the circuit board of the board 5 circumferentially and covers the end face of the board.

The hollow body formed by the two inner insulating bodies 4/5 and 4/6 has two narrow side surfaces 45 and two longitudinal side surfaces 46 (FIG. FIG. 9 ). The upper longitudinal side surface has a shallow recess 47 (FIG. FIG. 9 ). In this recess, the board is a small piece with an edge portion. This edge portion is a part of the ground trace 44. In the recess 47, a Leitkissen 48 is arranged, which is a piece of foam, which is covered with an electrically conductive tissue. The Leitkissen 48 touches with one side of the front edge of the circuit board of the board and is with its other side with the housing 2 in contact and thus establishes an electrical connection between the grounding track 44 and the housing 2 ago. In FIG. 9 the Leitkissen is partially cut away to make the recess 47 visible.

At the inwardly facing sides of the inner insulating 4/5 and 4/6 pockets 49 are again provided for receiving the electrical components 39, 43 of the board 5. These pockets 49 may be lined with an elastic material.

The board 5 is arranged with clearance between the two inner insulators 4/5 and 4/6, wherein it is acted upon on both sides by the sub-pins 32, 33 with little force due to the spring action of the sub-pins 32, 33 spring elements. The insertion forces are introduced to the shoulders 16 of the sub-pins 32 in the inner Frontteilisolierkörper 4/5 and derived via the arranged in the corner spacers on the other inner Rückteilisolierkörper 4/6 and on the adjacent thereto the outer Rückteilisolierkörper 4/7 on the housing 2. The insertion forces of the connector 1 are thus not transmitted to the circuit board 5. Apart from the small forces exerted by the spring elements of the sub-pins 32, 33 forces the circuit board 5 in the connector force and voltage is arranged.

The board 5 is thus encapsulated by the inner insulator of the external mechanical loads.

FIGS. 14a to 14d show by way of example some filter circuits that can be realized with the connectors according to the invention. Ze denotes the input impedance and Za the output impedance. Between the input impedance Ze and the output impedance Za is the connector.

Figure 14a shows a C-filter, in each case a capacitor C is connected in parallel to a plug pin 3.

FIG. 14b shows an L-filter in which an inductance in series with the plug contact pin and a capacitance is arranged parallel to the plug contact pin. The series-arranged inductance can be realized in a connector with continuous plug contact pins 3 by means of a ferrite body. In a connector with an interrupted plug contact pin, the inductance may also be formed by a coil. The inductance of a coil is much more precise than that of a ferrite body, so that such a filter is much more precise than a filter formed with a ferrite body. This is a significant advantage, because in the design of the filter whose tolerances must be considered. If the tolerances are lower, the frequency band to be passed by the filter can be defined much narrower and less spurious frequencies can pass through the filter.

FIG. 14c shows a Pi filter. The pi filter has an inductance L arranged in series with the plug contact pin and two capacitors C1 and C2 connected in parallel therewith. The third embodiment has such a pi-filter, which consists of the coil 39 connected in series to the sub-pins 32, 33 and the corresponding capacitors 43.

In the continuous plug contact pin such a pi filter can be realized in that two boards are provided in the connector, which have a capacitor for each plug pin and between the two boards a ferrite body is arranged, which forms the inductance. However, such an embodiment can only be produced with large tolerances.

Figure 14d shows a T-filter with two series-connected coils and a capacitor connected in parallel to the plug pin.

The C-filter has an attenuation of about 20 dB, the L-filter has an attenuation of about 40 dB and the pi-filter and the T-filter each have an attenuation of about 60 dB. It can be seen from this that the attenuation of the filters is stronger, the more complex they are formed. By using a board integrated in the connector, it is basically possible to provide filters of any desired complexity. Optionally, several boards are provided in the connector in a stacked arrangement, so that there is sufficient space for the individual components.

The filters discussed above are passive filters. In the context of the invention it is also possible to integrate an active filter in the connector. For this purpose, a supply voltage is to be supplied via a plug contact pin of the filter circuit. The filter then includes active elements, such as electrical amplifiers and control devices.

The invention can be briefly summarized as follows:

1

Steckverbinder

2

Gehäuse

3

Steckkontaktstift

4

Isolierkörper

5

Platine

6

Pin

7

Lötkelch

8

Steckseite

9

Rückseite

10

Steckmanschette

11

Dimple

12

Steg

13

Steckrichtung

14

Durchgangsloch

15

Ausnehmung

16

Schulter

17

Buchse

18

Stiftabschnitt

19

Pressfitabschnitt

20

Lötelement

21

abgeflachte Fläche

22

Durchgangsloch

23

Ausnehmung

24

Abstandshalter

25

Durchgangsloch

26

elektrisches Bauteil

27

Tasche

28

Durchgangsloch

29

Kontaktelement

30

Federelement

31

Pfeil

32

Teilstift

33

Teilstift

34

Rundkörper

35

Kontaktstift

36

Einlötstift

37

Einbuchtung

38

Kontaktfeld

39

Spule

40

Kontaktfeld

41

Kontaktfeld

42

Leiterbahn

43

Kondensator

44

Masseleiterbahn

45

Schmalseitenfläche

46

Längsseitenfläche

47

Ausnehmung

48

Leitkissen

49

Tasche

The invention relates to a connector with a plurality of plug contact pins, a housing in which the plug contact pins are arranged, and one or more boards, which are arranged in the housing and are electrically connected to at least one of the plug contact pins. The invention is characterized in that the board is fixed in the housing in such a way that it is mechanically decoupled from the plug contact pins and / or the housing so that relative movements between the plug contact pins and the housing do not cause any tension in the board.

1

Connectors

2

casing

3

Plug pin

4

insulator

5

circuit board

6

Pin code

7

Solder Cup

8th

mating side

9

back

10

plug sleeve

11

Dimple

12

web

13

plug-in direction

14

Through Hole

15

recess

16

shoulder

17

Rifle

18

pin section

19

Pressfitabschnitt

20

solder member

21

flattened area

22

Through Hole

23

recess

24

spacer

25

Through Hole

26

electrical component

27

bag

28

Through Hole

29

contact element

30

spring element

31

arrow

32

part pen

33

part pen

34

round body

35

pin

36

SOLDER

37

indentation

38

Contact field

39

Kitchen sink

40

Contact field

41

Contact field

42

conductor path

43

capacitor

44

Ground trace

45

Edge face

46

Longitudinal side face

47

recess

48

Leitkissen

49

bag

Claims (15)

Connector comprising
several plug contact pins (3),
a housing (2) in which the plug contact pins (3) are arranged, wherein the plug contact pins (3) have a circumferentially projecting shoulder (16), and the shoulder (16) between two insulating body (4) for transmitting forces in the axial direction the plug contact pins (3) is arranged, and these insulating body (4) are arranged in the axial direction with positive engagement in the housing, and
by means of two spaced insulating body (4) the plug contact pins (3) are fixed tilting in the housing (2) and
a circuit board (5) with discrete electrical components (26) which is arranged in the housing (2) and is electrically connected to at least one of the plug contact pins (3), wherein the circuit board (5) to the plug contact pins (3) and / or Housing (2) is mechanically decoupled, so that relative movements between the plug contact pins and the housing cause no tension on the board (5). Connector according to claim 1,
characterized,
that the circuit board with electrical filter elements (26, 39, 43) provided is. Connector according to claim 1 or 2,
characterized,
in that the housing (2) is formed from an electrically conductive material and the circuit board (5) is electrically connected to the housing (2). Connector according to one of claims 1 to 3,
characterized,
in that the mechanical decoupling between the housing (2) and the circuit board (5) is formed by the circuit board (5) being arranged to play with the housing (2) and / or the circuit board (5) being connected to the housing by means of one or more elastic elements and / or flexible and electrically conductive element (29, 30, 48) is connected. Connector according to one of claims 1 to 4,
characterized,
in that the mechanical decoupling between the plug contact pins (3) and the circuit board (5) is formed by the circuit board (5) with the plug contact pins (3) by means of one or more resilient, elastic and / or flexible and electrically conductive elements (29, 30, 32, 33) is connected. Connector according to claim 5,
characterized,
in that the elastic or flexible element comprises an elastomer, a spring (30), a braid (48), in particular a metal braid or an elasticized polymer, a conductive tube (29), an elastic stranded element formed from twisted strands, an elastic body which is covered by a electrically conductive material, is an elasticized conductive polymer body or a conductive elastomeric body. Connector according to one of claims 1 to 4,
characterized,
that the plug contact pins (3) with the board (5) are connected mechanically and electrically in each case by means of a press-fit connection (19). Connector according to one of claims 1 to 7,
characterized,
in that the plug contact pins are each formed from a pair of sub-pins (32, 33), the pairs of sub-pins (32, 33) being spaced apart from each other and the board being in the region between the sub-pins (32, 33) and electrical connections between the board (5) and the sub-pins (32, 33) are provided. Connector according to claim 8,
characterized,
in that at least one of the insulating bodies (4) is arranged so tightly on the circuit board (5) that electronic components (29, 39, 43) located on the printed circuit board (5) are localized. Connector according to one of claims 1 to 9,
characterized,
in that a respective coil (39) is provided on the circuit board (5) for each plug contact pin (3). Connector according to one of claims 1 to 10,
characterized,
is that provided on the board (5) to each plug pin (3) in each case a capacitor (29, 43). Connector according to one of claims 1 to 11,
characterized,
in that a plurality of insulating bodies (4) are arranged in the housing, which surround the plug contact pins (3) in a form-fitting manner and the insulating bodies (4) are arranged at a distance from one another, so that the plug contact pins (3) are secured against tilting. Connector according to one of claims 8 to 12,
characterized,
in that at least one electrical component (39) is connected in series with the partial pins (32, 33). Connector according to one of claims 1 to 13,
characterized,
that the connector has multiple boards. Connector according to claim 14,
characterized,
that the boards are arranged spaced apart in the connector stacked.

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