DE19950084C1 - Circuit board high current connector - Google Patents

Abstract

The connector has a two-pole plug with plug and socket parts with contact elements in a multi-leg contact arrangement for contacting connecting points. The plug and socket parts have contact pins or sockets protruding into a protective collar or fitting. The socket has attachments to the board and a multi-leg contact arrangement with laterally protruding connection pins. Cable conductors can be pressed onto the plug part with a crimping tool. The connector has a two-pole plug with a plug part (6) and a socket part (10) with contact elements (12-15) for making an electrical connection and a multi-leg contact arrangement of the contact elements of the plug or socket part for contacting connecting points. The plug and socket part have contact pins or sockets protruding into a protective collar or fitting. The socket has attachments to the board and a multi-leg contact arrangement with laterally protruding connection pins. The conductors of a cable can be pressed onto the plug part with a crimping tool.

Description

The invention relates to a board high-current connector, consisting of a two-pin plug with plug part and a socket part with contact elements for Establishing an electrical connection and from a multi-leg contact Contact elements of the plug or socket part for contacting connection points one Circuit board.

A board high current connector of this type, which a Board / cable connection is made possible by Anderson Power Products, 01564 Sterling, Mass. US distributed.

This consists of a two-pin flat contact plug in the way in which it is used for electrical Industrial trucks is used. This can be screwed onto the board and there via a from each of its two contact elements, laterally projecting towards the circuit board Tripod contacting can be made at the intended connection points on the board.

The tripod contacts consist of a laterally protruding extension of the Flat contacts, each of which is angled downwards at right angles to it Protruding pins. These are inserted in board holes and there soldered.

Currents of up to 55 A at voltages of up to 600 volts are possible via the circuit board Lead high-current connector.

Disadvantages of such high-current circuit board connectors are that the used flat contact plug devices vibrations between the to be plugged Flat contacts of two connectors can occur, these also refer to the Tripod contact and their pins can.

The assembly of boards with such board high-current connectors must be done by hand because the pins of the tripod contact exactly to Align the bottom edge of the flat contact plug connector and with them Main contacts are not firmly connected.

Before connecting the tripod contact to the main contacts Flat contact plug connection according to the pins of the tripod contact  Introduction into the board holes by soldering to the connection points and thereby fixing the board.

In this respect, it is not an assembly of such known high-current circuit boards. Plug-in devices possible using machines. Furthermore, the attachment of the on the PCB to fasten flat contact plug connector in this respect as complex as this for example by screwing.

There is no simultaneous attachment of this connector with the attachment of the Terminal pins of the tripod contact possible on the board.

The known flat contact connectors from Anderson Power Products (e.g. SB 50 connectors) are relatively high and wide in terms of their design, so that contacting the connections on circuit boards will encounter difficulties if they are parallel to one another in vertical planes Distance are arranged in plug-in modules.

Furthermore, such connectors are relatively long, so that a wide side edge of the Boards for attaching and screwing the housings of the flat contact connectors must serve.

When two flat contact connectors are inserted, the second protrudes Connectors far from the front of the plug-in modules. Such known circuit board High-current plug devices cannot be used in particular if Board insert modules are arranged in cupboards, which with an outer door are lockable and only one between the door and the front of the plug-in modules have a narrow connection space.

From the publications DE 42 40 261 C2, US 4 093 332, DE 198 02 984 A1, DE 87 02 058 U1 and US 5 868 587 A are unique features of a high current board connector known how high-current contacts with multi-leg contacting, protective collar, Connector housing with cover, connector angle housing and Housing mounting brackets.

Starting from a board high-current connector of the type mentioned, provides the task of further developing them in such a way that simple attachment of the Contacts of the board high-current connector on the board when inserting the Connection pins are given in the board hole, only then soldering the Connection pins are made.

At the same time with the insertion of the connection pins into the board hole Determination of the connector housing to be determined on the board, so that a Equipping with a machine is possible.

The connector pins and the main contacts of the connector should, if possible, be applied already mounted on the board and thus represent a unit. You should like  also the connecting parts required to hold the connector housing on Connector housing already attached.

High currents must be able to be conducted through the contacts of the high-current circuit board connector his. The connector should preferably have such main contacts that one Do not slip any vibrations between the contacts with a second connector occur. On the other hand, there should be a slight concealment.

The design of the connector to be fixed on the board is only intended to be slight Require space, with contacting of boards between their parallel Levels arranged at a distance from one another are possible, such as in plug-in modules for there are mobile or stationary telephone systems, which are in a large control cabinet are included.

Since such cabinets in the connection space between the front of the plug-in modules and the front door are very narrow (e.g. 4 cm free space), the space required on the Circuit board specified connector of the circuit board high-current connector and further plug connector, which leads the cable to be connected, extremely low his.

The pins of the multi-leg contact and these should be designed and on the The board can be soldered in such a way that there is good heat dissipation from the solder joint and thus a slight heating of the circuit board contacts in the activated current-carrying state. The connection pins should, if possible, also be designed in such a way that simple soldering with good mechanical and electrical contact.

To achieve this object, the formation of a high-current circuit board connector is provided type according to the characterizing part of claim 1.

According to claim 1, a device is provided in which with contact pins and - socket-provided connectors are used, as per themselves according to device Plug devices for electric industrial trucks according to DIN 43589-1 are known.

The connector and socket part of the circuit board high-current connector device then have contact pins or sockets on, which protrude into a protective collar or connector and there with each other can be plugged over, with the additional part of the socket provided with contact sockets Fasteners for fixing on the board and on the back of the contact socket in each case a multi-leg contact with laterally perpendicular from the plane of the socket part protruding pins. Furthermore, the connector part by means of crimp connections Contact pins, the conductor of a cable can be pressed and connected, the connector part and Can part can be plugged and aligned with each other so that the connection side of the Plug part with the crimp connections at an angle of 90 ° to his Protective collar and thus compared to the plug-in attachment of the Socket part is angled, with the contact pins between the plug area and Cable connection area are angled at about 90 ° and the cable feed and The contact elements are placed in a plane parallel to the plane of the circuit board.  

The socket part of the plug device is only for fastening on the circuit board formed, the connector part without plugging outside of the field of the board is lying and even when the two connectors are plugged in when the Board / cable connection for one of the boards arranged in plug-in modules essentially in the connection area in front of the outside of the plug-in modules.

The plug part is constructed in such a way that cable diversion up and down in Connection space in front of the plug-in modules is possible, the connection side of the Plug part at an angle of about 90 ° to its protective collar and thus also compared to the plug-in attachment of the socket part to be plugged with the protective collar is angled.

Of course, bends that are slightly larger than 90 ° are also possible for cable diversion are, e.g. B. 110 °, as long as the available connection space is large enough.

On the can part, the attachments are provided for fixing on the board, so that an attachment of the box housing directly with the attachment of the Multi-leg contacting of the individual main contacts of the socket on the board is given.

The pins of the multi-leg contact are laterally perpendicular from the plane of the Can part in the direction of the surface of the board. By the fastenings of the The socket part for fixing the socket housing on the circuit board becomes a socket at the same time Alignment and attachment of the connector pins in the board holes achieved.

Since the pins are attached directly to the back of the contact sockets and so that this can be fitted to the can housing automatically PCB sockets are made at the connection points and the attachment points provided there.

In addition, the connection pins themselves can also be provided with locking devices, so that this even in the board hole provided at the soldering and connection points can be locked.

Claims 2-17 relate to advantageous designs of the contact pins and sockets as well of the plug and socket part to be used, wherein according to claims 3-34 the plug part from a connector housing upper part and from a connector housing lower part with two to each other sections angled by 90 °.

According to claim 18 are as attachments of the can part on the as a support surface serving broad side of his can housing protruding from the bottom fixing lugs created, which are dimensioned such that they are provided on the board Board holes can be inserted.

As additional fastenings of the box housing serve according to claim 19 U- shaped clips, which protrude from the bottom of the can housing with locking lugs  and how the fixing lugs can be inserted or fixed in circuit board holes. These are preferably made of metal, especially brass.

To fasten the clips on the narrow sides of the box housing serve according to Claim 20 there each projecting U-shaped bracket, in which one of the clips insertable and opposite to an approach spaced above the bracket is definable.

According to claims 21 and 22 is a special form of the pins on their outer end portion provided so that soldering on both sides of the connection pins the front and back of the board is possible and good contacting and fastening at the board connection points.

According to claim 23, a multi-leg contact is advantageously used Tripod contacting from three connecting pins, each from a common one the bolt section created and a fork-shaped divided, in height to that of the bolt section lower flat joint Form a section that is widened laterally.

The elongated web-shaped contacts of the connection pins each have a pin section which is bent 90 ° to the board side. These pin sections are like this to each other that the bending of a central pin section to two outer Pen sections takes place earlier, in so far as a secure support of the Multi-leg contact is given by three spaced pin sections and thus great stability.

Claims 24-27 in turn relate to advantageous configurations of the Terminal pins of the tripod contact, in particular good heat dissipation and thus there is a slight heating of the connection pins.

The design of the contact pins and contacts also serves to reduce the contact resistance. sockets of plug and socket part in the form of extruded contacts of claim 2.

Such contacts can be plugged with high contact pressure, which is a good one Contact between them and a low contact resistance results.

According to claim 3, the housing of the connector part is made of a connector housing lower part and a connector housing upper part, the connector housing lower part of two to each other by 90 ° angled sections, one section of which Protective collar forms and the other section of a half-height, half-shell-shaped part formed on the protective collar, in which the contact pins can be inserted and plugged into the protective collar, the head of the contact pins Cable to be contacted via crimp connections. Basically, instead of crimp connections Solder connections can also be made on the contact pins.  

The formation of the upper part of the connector housing to the lower part of the connector housing according to Claim 3 results from claim 4. This is a half-shell-shaped housing part formed which after the half-shell-shaped section of the connector housing lower part Completed and closes at the top and with an outer face to the inner face of the Protective collar connects.

According to claim 5, the design of the lower part of the connector housing is at a distance Recesses made parallel to each other are provided, which in two to each other by 90 ° angled sections run and to accommodate the also angled Contact pins serve.

The claims 6, 7 and 8 relate to advantageous designs of these recesses and the lower part of the connector housing for storing the contact pins. Training the Housing upper part, which with the connector housing lower part according to claims 5-8 is to be plugged in, it follows from claim 9. There are also two at a distance side by side recesses provided in the upper housing part, which also in two sections angled at 90 ° to each other are divided and for guidance and Embedding the part of the contact pins, which is from the lower part of the connector housing protrudes.

According to claim 11, the recesses are placed in the upper part of the connector housing according to the arrangement of the recesses in the lower part of the connector housing through the middle along of the shell-shaped upper part of the housing, also led by 90 ° angled middle webs, where transverse to the recesses transverse and diagonal walls with omissions Storage of the upper parts of the pin sections protruding from the lower housing part are created.

The lower housing part and upper housing part are fastened according to claim 12 and 13 either by screwing the housing parts or by one Snap part protruding into the other part of the case. According to claim 13 are there both types of attachment provided.

The design of the socket housing with the contact sockets to be applied there the claims 14, 15 and 16. Since the can housing directly on the board attach and is relatively small in size and over a large section from the laterally to the outer edge of the board protruding plug-in projection, which with the Protective collar protruding laterally from the plug part over the edge of the board, the can housing is formed in one piece.

It opens to the back, from there the contact sockets with the others The rear of the contact socket can be inserted in each case. The Attachment of the contact sockets takes place via clamping pieces, which via a Housing opening opening slot against the outside of the Contact sockets are pluggable and there in an outwardly opening circumferential groove Definition of the contact sockets can be snapped into place.  

According to claim 16, the longitudinal recordings of the can housing are in the Plug-in approach created, where they extend in omissions in which the to be plugged socket part of the contact socket comes to rest.

The mating of the male and female parts such as the contact pins and sockets of these Connector is according to claim 17 by an external locking of socket part and Plug part secured by a locking hook.

For coding the plug part and socket part is a according to claims 28 and 29 special design of protective collar and plug-in attachment of the connectors provided, which in this respect differs from the DIN standard for device connectors for electrical Industrial trucks differs.

According to claim 28, the plug-in approach is in two parallel, extending in the plug-in direction Approaches spaced apart from each other, into each of which one of the socket parts of the Contact sockets is guided and in between these approaches on the outside in Plug direction is guided at least one longitudinal web.

In contrast, the protective collar is divided into two longitudinal shots, with in the middle this one wall runs longitudinally, which in this respect the protective collar in two Longitudinal sections divided.

The wall can also be designed as a bare wall section. In the wall or this wall section runs a longitudinal groove in the direction of insertion, which with the longitudinal web of the plug-in approach when the plug-in connector is plugged in with suitable coding is feasible.

According to claim 29 are advantageous orientations of the approaches as web sections provided longitudinal webs provided. According to claim 30, the longitudinal webs are above the Level, which as the middle of the two adjacent socket parts Connection level is laid.

Claim 31 relates to an advantageous system of the longitudinal grooves in the protective collar in the two longitudinal recordings dividing wall or in the provided there Wall section. The longitudinal grooves can cross through the protective collar extend a longitudinal shot into the other or only partially over this section.

If the longitudinal grooves do not extend over the entire distance from a longitudinal recording into the extend other longitudinal recording, is a corresponding according to claim 32 Formation of the plug-in sections and longitudinal webs provided, these are only with a height in the direction of the opposite extension of the plug-in extension is less than the distance between the two approaches of the plug-in approach.

According to claim 33 of the two opposite approaches of the plug-in approach outgoing longitudinal webs at an angle laterally offset from each other, one  corresponding installation of the longitudinal grooves in the wall section or the wall of the Protective collar is provided.

By introducing longitudinal webs and longitudinal grooves, Avoid confusion between the plug part and socket part and in particular also of connector parts, which lead to different board high-current connectors belong, which lie with their cables on the front of the plug-in modules.

There are confusions of several within one cabinet or one Plug-in module provided plug parts avoidable, a mix-up of plus and Negative pole when plugging the plug part and socket part and furthermore a pluggability is only a pole of the connector and socket part, i.e. an unwanted overhead plug Connectors with reversed polarity, also reversed cable outlets, which are directed with their plug part to the top of the plug-in module Cable outlets, which point with their plug part to the underside of the plug-in module are or of different connector parts used side by side.

According to these claims there is a modification of the connector housing, that is Mirroring of the system of longitudinal grooves and longitudinal web about two axes.

As an additional coding, of course, apart from the creation of longitudinal webs and longitudinal grooves Color coding also takes place, with the plug connectors or circuit board High current connectors, e.g. B. additionally colored for different voltages be labeled (e.g. 12 volts, 24 volts,... 80 volts).

Can parts are placed on the board insofar as their socket parts in the Contrary to the contact pins of a connector part are difficult to bend. this applies especially if they are not punched out of sheet metal, but rather extruded are.

The compact design of the connector and socket part is achieved in that the 90 ° Bending or angling takes place on the contact pins, this with their Plug housings are to be created outside the circuit board and there is a cable outlet below Redirection up or down takes place.

Due to the vertical arrangement of the pin sections of the contact pins to the outside protruding socket parts of the contact sockets of the socket part outside the plug area are the contact pins that lie on the inside or outside of the plug part come, bent with different bending ratios.

The "lower" contact pin is short and the "upper" contact pin is long.

Cables with a cross-sectional area of 6-16 mm ² with cable deflection and strain relief can be created via a crimp connection, a very compact design of the plug part being obtained even when a floating strain relief is applied.

Thanks to the special fixing lugs on the underside of the socket housing and those on the side created, made of metal clips, which have locking lugs at their lower ends Intervention in suitably designed around the connection point of the tripod contact Have board holes and the attachment of the pins of the Tripod contacting via their attachment to the contact sockets directly on Box housing can automatically populate the boards with the can parts Circuit board high-current connector is done by robots. After the assembly, the Solder connection of the tripod contact on the circuit board. The shape of the Terminal pins enable double-sided soldering in the solder bath, as by Capillary action also settles solder on the top of the board.

Due to the double-sided soldering, a particularly good contact and thus a low contact resistance is achieved at the electrical connection of the connection pins, in this respect the soldered connections do not heat up inadmissibly despite high currents. The Connection pins should not extend more than 2 mm from the underside of the board, preferably only 0.0 to -0.5 mm, in which case it is not from between 1.6 and 2 mm protrude thick board.

The clips are preferably made of brass and face two steeply to the front protruding U-shaped legs, at the end of which the locking lugs are created, which insofar as they are resiliently deformable towards each other and against each other.

The rated current carrying capacity of the board high-current connector is approximately maximum 80 A, with a current limitation essentially given by the insulation of the cable is, which must not be heated to temperatures higher than 90 ° to 100 ° C, since it otherwise it melts, as well as through the material of the housing.

The housing and plug part and socket part is preferably made of glass fiber reinforced Made of polyamide. The main contacts are made of silver-plated copper. The Terminal pins of the tripod contact are shaped in the end in such a way that not only one Soldering takes place on the top and bottom of the board, but that these pins in the Board holes are also easily pivoted so that a floating storage of contacts and thus better overlapping is given.

The main contacts designed as contact pins and contact sockets have the Advantage that the high pin currents used by the pin / sleeve contact principle low contact resistance are conductive.

Furthermore, these are more massive compared to flat contacts, and in particular due to the outer locking hook between the housings of plug and socket part to protect against Vibrations and a mechanical lock results.

The high-current plug-in device for circuit boards according to the invention is described below a preferred embodiment explained in more detail.

The drawings show:

FIG. 1a, b: The representation of two plug-in modules, in which the perpendicular to contacting boards spaced in parallel planes to each other are mounted with one on the front side of the plug-in module top and / or bottom-connected board high-current plug-in device, wherein the voltage terminal of the sinkers at the back of the module;

Fig. 2: A view of the two-pole circuit board high-current connector used in Fig. 1a and b showing a 90 ° angled connector part with the lower part of the connector housing and the upper part of the connector housing open and a strain relief clamp located above it and a socket part to be plugged with the connector part , whose housing is formed in one piece, in particular by showing the main contacts with a tripod contact arranged on the rear of the contact socket of both contacts of the socket part for a solder connection of the contacting of the socket part on the circuit board, with four fixing lugs protruding over the underside of the socket part fixing it on the circuit board and two U-shaped clips, which are fastened on the outside between two fixing lugs, which snap into the board holes to be provided and thus automatically populate the boards with socket parts of the high-current connector enable;

Fig. 3a: A side view of the lower part of the connector housing of the board high-current connector, seen on the coming to lie outside of the boards, by 90 ° to this angled long side of the connector housing, with the guide section for the strain relief to be used on the left of the two Main contact pins via a crimp connection to be crimped cable is shown and on the right the protective collar for the guide attachment of the socket part of the plug-in device;

FIG. 3b is a top view of the bent the crimp and guide sections for the strain relief clamp having connection side of the connector housing lower part, showing the 90 °, the protective collar-forming connecting side and a serving on the outside for locking the plug part and socket part the latching hook;

Fig. 3c: A plan view of the inside of the connector housing, the bend of the connector housing by 90 ° to form the upper side of the protective collar and the left side for the two-pole cable to be connected to the high-current connector, the holes can be seen for the contact pins and the receptacles for guiding the contact pins in the protective collar are shown in dashed lines, since the protective collar is closed over the entire circumference in the radial direction;

Fig. 3d: A view of the front of the protective collar of the connector housing, behind which, laterally to the left, the housing section for the crimp connection, which is angled by 90 °, extends which, in contrast to the protective collar which is closed in the radial direction, is only a half-shell of an over forms the height of the divided lateral section of the connector housing, the upper missing half-shell being formed by the upper part of the connector housing to be screwed on (see FIGS. 4a-e);

Fig. 3e seen: A sectional view of the outer guide portion of the strain relief clamp according to the section AA of Figure 3a.

Fig. 4a: A side view of the upper part of the connector housing of the circuit board high-current connector, seen on the coming to lie outside the board, by 90 ° to this angled long side of the connector housing, with the guide section for the strain relief to be used and the exclusion side to the right Compression of the conductor of the cable on the main contact pins via crimp connections is shown and on the left a top view of the rear of the protective collar, in which the guide extension of the socket housing of the high-current plug-in device is to be inserted;

Fig. 4b: A plan view of the connection side for the cable connection of the connector housing with guide sections created there for the strain relief clamp to be recorded, showing a snap hook placed on the right and left in the area of the guide of the strain relief clamp, which in Fig. 4a is only concealed from one another in a side view the broadside are shown;

Fig. 4c is a top plan view of the inside of the connector housing upper part, wherein the projecting according to the above protective collar is opposite the angled toward be mounted terminal side of the guide section of the strain relief clamp comprising terminal side by 90 °;

Figure 4d. A view of the directed towards the protective collar connection side of the connector housing upper part, said exterior side extending to right to 90 ° offset connection side for the crimping terminals of the two-pole cable, and for guiding the cord grip is, in contrast to the connector housing lower part, the entire upper part is only designed as a half-shell and thereby complements the section of the lower part of the connector housing which is also designed as a half-shell;

Fig. 4e: A sectional view taken on the outer part of the guide of the strain relief clamp according to the section AA in Fig. 4a;

FIG. 5a: A view of the front of the plug-in projection of the integrally formed elongate not angled, on the circuit board to be mounted socket housing;

Fig. 5b: A view of the left outside of the can housing showing the two thorn-shaped fixing lugs projecting from each other over the underside of the can housing and the laterally applied holder for locking a clip with two locking lugs projecting over the underside, the fixing lugs and Locking lugs are used to fasten the socket part of the high-current connector in holes in the board;

Fig. 5c: A plan view of the socket housing of the high-current plug-in device according to Figure 5a, 5b;.

FIG. 6a, b, c, d, e, f: A side view, a longitudinal section and a cross section of the strain relief clamp, and indeed with respect to the upper part and lower part;

Fig. 7a: A side view of the angled in two-pin plug portion short to use the contact pin;

FIG. 7b is a side view of the plug part to be used in long contact pin;

Prevent views on the mating side of the female part and the male part, which the high-current plug-in device are designed for different codes and in particular a Übersteckung been exchanged with polarity of plug and socket part; Figure 8-16.

Fig. 17: A schematic representation of the shape of the pins of the tripod contact and the engagement of the lower end of a pin in a circuit board hole and the soldering that takes place on both the front and the back of the board.

The high-current connector shown in FIGS. 1-16 is used in the AC or DC voltage range of z. B. up to 150 V for currents up to at least 80 A for circuit board connection especially in mobile and stationary telephone systems.

The high-current plug-in device 1 , 1 ', 1 "is guided upwards or downwards by the boards 2 , which are spaced apart from one another in parallel planes and are mounted in plug-in modules 3 , 4 , over the outside of the plug-in modules with their outer two-pole connecting cable, as shown in FIG . 1a, is indicated b.

Since the boards are assembled, they take one as shown in the drawings wider, rectangular space, with enough space between the boards is to there the board with a connector initially running in the horizontal direction contact the high-current connector, this section until just before the Insert module front is guided and then at 90 ° up or down with a second connector to be stretched, which is in the front of the plug-in module is directed, is redirected.

Main contacts 12 , 13 ; 14 , 15 are used in the high-current plug-in device 1 , 1 ', 1 ", which are designed according to the pin / sleeve principle, which is used in device plug-in devices for forklifts and similar electric vehicles. ( see DIN 43589-1)

The socket part 10 formed with socket parts 33 on the main contacts 14 , 15 is held on the circuit board to be contacted via a special latching and loading device and, as shown in FIG. 2, is placed on the rear side of the contact socket 16 , 16 ' Tripod contact 18 , 18 'and their solder connection 44 to be made on the board (see FIG. 17) are electrically contacted on the board.

The main contacts 14 , 15 with the front socket parts 33 of the socket part 10 are thereby fixed in the socket housing 11 via a resilient clamping piece 35 'which can be inserted from the top of the housing between the elongated main contacts 14 , 15 ( FIG. 2, FIG. 5c).

This engages in a radially recessed circumferential groove approximately half the length of the main contacts 14 , 15 . The shaped socket parts of the socket part 10 protrude into the front part of the socket housing 11 , which is designed there as a plug-in extension 25 , as is known for device plug-in devices for electric industrial trucks, but the plug-in extension into two separate approaches for separate encapsulation the socket parts is divided.

While the socket housing 11 is essentially made in one piece and in particular is not divided into a lower and upper part of the socket housing and extends in a straight line in accordance with the essentially straight main contacts, which only have an outwardly angled tripod contact at the end, the plug part 6 has one first facing the socket part 10 straight, to be plugged over first section, which is formed by the protective collar 24 of the plug housing, which surrounds the freely protruding pin section 32 of the main contact 12 , 13 of the plug part 6 , and further a second one angled at 90 ° Housing section.

There is a lower connector part 7 and a smaller section in the form of an upper connector part 8 , which complement each other via the angled second housing section of the lower connector part.

While the connector housing lower part 7 has the protective collar 24 of the connector part which is closed laterally outwards and only adjoins the housing section in the lower part, which is finally angled by 90 ° to the protective collar, the connector housing upper part 8 is merely an essentially straight housing half-shell, which corresponds to the corresponding one Half-shell section of the connector housing lower part 7 added.

The connector housing upper part 8 has a connection as a vertical end face 8 ', which comes into contact with the free inner end face 8 "of the protective collar 24 , and laterally offset to the right by 90 °, a further connection side 72 , on which a guide section 23 for a there vertically displaceable strain relief clamp 9 is created and thus the openings for a two-pole cable to be contacted.

The structure of the connector housing lower part 7 results in detail from FIGS . 3a-3d and the structure of the connector housing upper part 8 from FIGS. 4a-4d.

The arrangement of the main contacts 12 , 13 of the connector part in the connector housing lower part 7 is shown in FIG. 2.

These main contacts, which represent contact pins, each have a crimp connection 77 at an outer end for crimping a cable with a suitably large cable cross-section (e.g. 6, 10, 16 mm ² ) and, with their pin sections 32, are laterally 90 to the right of this crimp connection ° each angled.

They then each extend with these straight pin sections 32 centrally into the two receptacles of the protective collar 24 . The main contact, which comes to lie on the inside in the region of the 90 ° bend of the plug part, is shorter than the main contact 13, which is to lie on the outside.

The pin sections 32 of the main contacts 12 , 13 as well as the socket parts 33 of the main contacts 14 , 15 do not protrude outward beyond the protective collar 24 of the plug housing or the plug-in extension 25 of the socket housing, so that they are completely encapsulated in the protective collar or plug-in extension to the outside are and are therefore protected against unintentional electrical contact, for example by contact with a tool.

Because the main contacts 12 , 13 of the plug part 6 are angled by 90 °, a receptacle for lines with cable deflection to the circuit board connection is provided on the outer crimp connection 77 thereof, with lines having a cross-sectional measurement of up to 16 mm ^{2 being able to be} defined.

The floating strain relief provided on the outer connection side 71 , 72 and consisting of a strain relief clamp 9 and guide sections 23 of the lower part of the plug housing and the upper part of the plug housing ensures optimal routing of the cable to the respective crimp connection 77 of the main contacts 12 , 13 .

3d and 4d, webs 50-53 and elongated recesses 54 , 55 for guiding and embedding the two main contacts 12 , 13 of the two-pin plug part to be arranged next to one another are arranged on the inside 27 of the lower part of the plug housing, as well as on the corresponding inside of the upper part of the plug housing according to FIGS. 3d and 4d .

The arrangement of the recesses 54 , 55 and longitudinal and diagonal webs 50-53 in the lower part of the plug corresponds to the arrangement of the recesses 54 ', 55 ' and webs 50 '- 53 ' in the plug part, the protective collar 24 being additionally formed on the lower part of the plug, so that whose half-shell-shaped first section is extended by a second section.

The recesses 54 , 55 ; 54 ', 55 ' are each straight from the connection side 71 , 72 , where the guide sections 23 of the strain relief clamp are applied, the area of the recesses to the end face 8 'adjacent to the protective collar then being bent in each case by 90 °.

Centered between these recesses is the central web 50 , 50 ', which has a corresponding bend at the outer end.

To stiffen the bent section are in the recesses 54 , 55 ; 54 ', 55 ' the webs each as diagonal webs 51 , 52 ; 51 ', 52 ' and in the outer recess additionally designed as a crosspiece 53 , 53 '.

The lower part 6 of the plug housing and the upper part 8 of the plug housing are flat in the region of the end faces 56 , 57 of their sections formed as half-shells and can be placed one on top of the other.

In a threaded bore 58 of the lower part 7 of the plug housing, the upper part of the plug housing can be fixed by means of a screw which is guided through a through-hole 59 of the upper part of the plug housing and is fixed there with its head on the outside of the housing.

The attachment of the lower connector part 7 and the upper connector housing part 8 is also carried out by the snap hook 35 shown in Fig. 4b and 4e, which extends there laterally upward with a long web-shaped section right and left in the recess formed for the strain relief clamp 9 . This guide 68 is formed by the guide sections 23 of the strain relief clamp.

The protruding snap hooks 35 engage in a recess, which extends downward in the lower part of the connector housing according to FIG. 3e, for guiding the strain relief clamp 9 , a radially recessed latching surface 60 , 61 being applied to the outer wall there.

After fastening the upper part of the connector housing against the lower part, the main contacts 12 , 13 inserted between them are fixed in the connector housing and protrude from its protective collar.

For the attachment of connector part 6 and can member 10 is shown in Fig. 3a, b, c and d are each at an outer side 24 'of the connector housing lower part 7 in the region of the local protective collar 24 is a snap-in hooks applied 26, which as a two-sided lever is formed, and thus by pressure on which one end of the lever can be pivoted outwards with its catch.

This locking lug engages, as can be seen in FIG. 2, behind a transverse rib 63 on the outer wall of the can housing 10 . This transverse rib is placed laterally behind the plug-in extension 25 of the socket housing 10 , so that the rest of the hook 26 does not impede the protective collar 24 and the plug-in extension 25 .

In order to avoid incorrect insertion of the two-pole high-current plug-in device 1 , 1 ', 1 "with another high-current plug-in device or between the plug part and socket part, at least one in the wall of the protective collar faces inwards to one of the longitudinal recordings 30 , 31 there opening longitudinal groove 49 created ( Fig. 2, Fig. 5a, c).

Correspondingly, on the outside of the plug-in attachment of the socket housing 11, a longitudinal web 48 is placed, which engages in the correct groove with the plug part 6 in the longitudinal groove 49 of the plug part 6 and otherwise prevents plugging.

As can be seen Fig. 5a and 5c, is the plug-in projection 25 of the socket housing 11 comprises two parallel, spaced to each other, the tubular projections 25 ', 25 ", which are closed to the front up to a passage opening for the pin portions 32 of the contacts of the connector part 6.

Since these lugs 25 ', 25 "are spaced from one another, there is sufficient space between them on the outside for guiding the longitudinal web 48 , which engages in the central groove 49 in the center of the protective collar when plug part 6 and socket part 10 are plugged in, since the protective collar 24 in Longitudinal receptacles for the two pin sections 32 are subdivided by a transverse wall 62 into which the longitudinal groove 49 can be guided, which opens on one side into one of the longitudinal receptacles of the protective collar 24. One of the pin sections 32 comes to rest in each of these and is on the outside on the side the longitudinal web 48 provided approach of the plug-in approach 25 insertable.

As can be seen Fig. 4a-4c, thereby, the socket housing 11 on its outer wall in contrast to the plug housing 6, 7 is a holder for a locking and mounting means for attaching the socket part 10 on the circuit board 2.

To hold the can housing 11 on the board, two outwardly projecting fixing lugs 19 , 20 ; 19 ', 20 ' created. These fixing lugs are dimensioned in such a way that they can be inserted or latched into circuit board bores 43 (see FIG. 17).

A U-shaped clip 21 , 22 on both sides of the can housing serves to additionally fasten the can housing 11 by means of the latching and fitting device to be used. This clip projects laterally with its two locking legs outwards over the underside of the can housing 11 . An elongated bracket 38 , 39 is used to hold the clip on the box housing 11 on each side of the housing, the clip being insertable into this bracket from above and having an outer stop surface on the outside on the side. In order to prevent the clip from being pressed out of this bracket when the can part 10 is plugged onto the circuit board 2 , a radially projecting projection 66 is provided as a clip lock in the middle above the bracket.

The clips 21 , 22 are made of metal, so in contrast to the fixing lugs 19 , 20 ; 19 ', 20 ' of the can housing 11 is not made of plastic. They have locking lugs 36 , 37 at the end of their locking legs; 36 ', 37 ' on.

After insertion into the board holes to be provided on the board, the locking legs of the clips 21 , 22 can not only be clipped into them using spring and tension forces, but also soldered directly onto the board.

The formation of the main contacts 14 , 15 of the socket part 10 with outer socket parts, which protrude as contact sections 33 into the guide projection 25 and are to be introduced into the socket housing 11 of FIGS . 5a, b, c, results from FIG. 2.

The structure of the main contacts 14 , 15 corresponds to the structure of the contact sockets that are used in the socket part of electric truck plug devices.

In this respect, the front socket part, in which a solid pin contacts 12 , 13 of the plug part 6 is to be plugged in to conduct higher currents, is split lengthways, with a clamping ring coming into contact with the outside via the socket opening. This construction results in good contacting of the contact pins 32 in the sleeves 33 of the main contacts of the socket part 10 .

In particular, there is an optimal power transmission over the section of the Sleeve contacts ensured in the range of the width of the clamping ring. The contacts are extruded to ensure a solid hiding and low contact resistance.

The main contacts are made of copper and silver-plated on the outside.

The connections for the tripod contact 18 , 18 'are respectively applied to the rear of the contact socket 16 , 16 '. This three-legged contact has in each case three connecting pins 41 angled by a longitudinal section by 90 °, two of which protrude outwards and a connecting pin which is centered on the gap and retracts inwards.

These connecting pins 41 are formed directly on the sleeve contacts on the rear side of the contact socket 16 , 16 'on a bolt section 17 .

The contacting of each socket-shaped or sleeve-shaped main contact 14 , 15 on the circuit board thus takes place in each case via a triple solder connection via the three connecting pins 41 provided .

In contrast to only one or two connection pins, three pins and the shape of the connection pins shown specifically in FIG. 17 make it possible to carry out double-sided soldering in the solder bath on the front and back of the board, the capillary effect on the back of the board between the pins and their board hole solder settled on the top of the board and insofar as the double-sided soldering and mechanically firm connection of each pin is given.

As can be seen in FIG. 17, the connecting pins 41 have a section with a tapered cross-section above the upper side of the circuit board, this section having a bevel 45 . This straight section is then followed by a straight section with the same cross-sectional dimension. This protrudes outward from the board, which is approximately 1.6-2 mm thick, from the back of the board, the connecting pin having an end section with outer sides 46 which are beveled toward the tip of the pin. This tip protrudes from the underside of the board up to a maximum of up to 0.5 mm.

The solder connections on the side of the connecting pin 41 on the top and bottom of the circuit board are each represented by circumferential solder 44 drawn in there.

As already stated for the connector housing part 6 , 7 , the cable to be pressed in the crimp connection 63 of the main plug contacts 12 , 13 with its two connecting conductors is each guided through a strain relief clamp 9 . It is a floating strain relief, since the strain relief clamp 9 is displaceable in a longitudinal recess (guide 68 ) between a front and rear guide section 23 perpendicular to the contacts, which is formed from wall sections of the lower housing part and upper housing part.

The strain relief clamp 9 has the strain relief clamp upper part 9 'according to FIG. 6a, b, c and the strain relief clamp lower part 9 "according to FIG. 6d, e, f.

These upper and lower parts each have receptacles 67 on the right and left for inserting the conductors to be clamped in the two-pole cable to be connected to the main plug contacts.

A longitudinal web is guided centrally between these recesses, in which a through bore 59 or a bore 58 with an internal thread is created, so that the upper and lower part of the strain relief clamp 9 can be screwed to one another.

In Fig. 7a, b, the angled main contacts 12 , 13 of the plug part 6 are shown in a side view, which are formed by contact pins.

These each have the outer crimp connection 77 , which is designed in the form of a sleeve which opens on one side and merges on the opposite side into a pin section which tapers in inside diameter and which forms the pin section 32 of the main contacts 12 , 13 .

The main contact 12 has a pin section which is shorter than the main contact 13 , the length of the sleeve-shaped section of the crimp connection 77 being the same in each case.

In FIGS. 8-16 six connector housing 7, 8 and four doses housing 11 are shown, in which in the longitudinal receivers 30, 31 of the protective collar 24 and between the tubular projections of the plug-in projection 25 longitudinal webs 48 ', 48 "and on the opposite side Longitudinal grooves 49 ', 49 ", 49 ''' are attached.

The longitudinal grooves and webs are laterally displaced in the center and aligned with one another in different directions, a paired arrangement of longitudinal webs or longitudinal grooves in the protective collar 24 or plug-in projection 25 also being provided.

This coding avoids a wide variety of confusion between the plug part and socket part of a high-current plug device or of different high-current plug devices, namely

• - confusion with each other,
• - confusion of positive pole and negative pole,
• - the unwanted pluggability of only one pole and  
• - The exchange of cable outlet "above" and cable outlet "below", as shown in Fig. 1b for these different cable outlets from the contacted boards 2 or the plug devices used.

Reference number list

1

,

1

',

1

"High current connector

2nd

Circuit boards

3rd

,

4th

Plug-in modules

5

Front of a slide-in module

6

Connector part

7

Lower part of the connector housing

8th

Upper part of the connector housing

8th

'' Front side of the upper part of the housing

8th

"inner face of the protective collar

9

Strain relief clamp

9

'' Strain relief clamp upper part

9

"Lower strain relief clamp

10th

Can part

11

Box housing

12th

,

13

;

14

,

15

Main contacts (contact pins, sockets)

16

,

16

'' Rear of the contact socket

17th

Bolt section

18th

,

18th

'Tripod contact

19th

,

20th

;

19th

',

20th

'' Fixing lugs (fastenings)

21

,

22

Clips

23

Guide section of the strain relief clamp (

9

)

24th

Protective collar of the plug part

24th

'' Outside of the protective collar

24th

"Wall

25th

Connector part of the socket part

25th

',

25th

" Approaches

26

Locking hook

27

Inside of the lower part of the connector housing

28

,

29

Access holes in the lower part of the connector housing for the receptacles of the plug-in attachment

28

',

29

'' Access holes for the mounts in the protective collar

30th

,

31

Longitudinal images of the protective collar

32

Pin section of the contact pins

12th

,

13

33

Socket part of the contact sockets

14

,

15

34

Half shell of the lower part of the connector housing

35

Snap part of the guide section of the strain relief clamp or the connector housing

35

'' Clamping piece for locking the socket parts

36

,

37

;

36

',

37

'' Noses of the clips

38

,

39

Side bracket-shaped holder for the clips

40

Clip lock (wart)

41

Tripod contact pins

41

'first pin section

41

"second pin section

42

Board holes for connecting pins

43

Circuit board holes for the fixing lugs or locking lugs of the clips

44

Solder connection of the connection pins of the tripod contact

45

Angling the connector pin in the area above the board

46

Angle to the tip of the connector pin

47

Straight section of the connecting pin passing through the board bore

48

,

48

',

48

',

48

'''Longitudinal bars in the mating face of the connector part or socket part

49

,

49

',

49

",

49

"Longitudinal grooves in the mating face of the connector part or socket part

50

,

50

'' Center bar in the connector housing

51

,

52

;

51

',

52

'' Diagonal bars

53

,

53

'Crossbars

54

,

55

;

54

',

55

'' Recesses in the connector housing

56

,

57

End faces

58

Tapped hole

59

Through hole

60

,

61

Rest area

62

Transverse wall

63

Cross rib

64

Locking legs

65

Tapped hole

66

Approach (clip locking)

67

Recordings of the strain relief clamp

68

Guidance of the strain relief clamp

69

,

69

'' First section of the recesses in the connector housing

70

,

70

'' Wide section of the recesses in the connector housing

71

Cable connection sides

72

-

73

,

74

Longitudinal images of the can housing

75

Location slot for clamping piece

77

Crimp connection

Claims (34)

1. High-current circuit board connector, consisting of a two-pin plug with plug part and a socket part with contact elements for establishing an electrical connection and from a multi-leg contacting of the contact elements of the plug or socket part for contacting connection points of a circuit board, characterized in that plug and socket part (6, 10) contact pins (12, 13) or sockets (14, 15) which have projecting in a protective collar or plug-in projection (25) and are mateable there with one another, wherein the provided with contact sockets (14, 15) can member ( 10 ) fastenings ( 19 , 20 ; 19 ', 20 '; 21 , 22 ) for fixing on the circuit board ( 2 ) and on the rear of the contact socket ( 16 , 16 ') each have a multi-leg contact ( 18 , 18 ') with laterally vertical from the level of the socket part protruding pins ( 41 ), and that on the plug part ( 6 ) by means of crimp connections ( 77 ) of the contact pins ( 12 , 13 ) Conductors of a cable can be pressed and connected, the plug part ( 6 ) and socket part ( 10 ) being able to be plugged over and aligned with one another such that the connection side of the plug part with the crimp connections ( 77 ) is at an angle of 90 ° with respect to its protective collar ( 24 ) and thus is angled with respect to the plug-in attachment ( 25 ) of the socket part ( 10 ) which can be plugged over, the contact pins ( 12 , 13 ) between the plug-in area and the cable connection area being angled approximately 90 ° and the cable feed and the contact elements ( 12-15 ) in a plane parallel to the plane of the circuit board ( 2 ). 2. Board high-current connector according to claim 1, characterized in that the contact pins and sockets ( 12 , 13 , 14 , 15 ) are extruded. 3. High-current circuit board connector according to claim 1 or 2, characterized in that the housing ( 7 , 8 ) of the plug part ( 6 ) is divided into a lower part of the plug housing ( 7 ) and an upper part of the plug housing ( 8 ), the lower part of the plug housing ( 7 ) consists of two sections angled by 90 °, one section of which forms the protective collar ( 24 ) that encapsulates the contact pins ( 12 , 13 ) and is laterally closed in the circumferential direction, and the other section forms a half-shell-shaped section that extends to half the height of the housing Protective collar ( 24 ) molded section, which forms at its other end portion the connection side ( 71 ) for the cable with crimp terminals ( 77 ) applied to the contact pins ( 12 , 13 ). 4. circuit board high-current plug device according to claim 3, characterized in that the plug housing upper part ( 8 ) is designed as a half-shell-shaped housing section which complements the half-shell-shaped section of the plug housing lower part ( 7 ) upwards and with an outer end face ( 8 ') to the inner End face ( 8 ") of the protective collar ( 24 ) connects. 5. High-current circuit board connector according to claim 2, 3 or 4, characterized in that in the connecting side ( 71 ) of the cable forming portion of the lower part of the connector housing ( 7 ) side by side spaced recesses ( 54 , 55 ) are created, which run in two sections ( 69 , 69 '; 70 , 70 ') angled at 90 ° to one another and serve to guide and embed contact pins ( 12 , 13 ) which are angled in themselves. 6. High-current circuit board connector according to claim 5, characterized in that the first section ( 69 , 69 ') of the recess ( 54 , 55 ) is guided at one end in the direction of the receptacles ( 67 ) of the strain relief clamp ( 9 ), which is displaceably arranged on the connection side ( 71 ) of the cable in a guide ( 68 ) transversely to the plug, and the second section ( 70 , 70 ') of the recesses ( 54 , 55 ) with its other outer end centrally in the direction of one of the longitudinal recordings ( 30 , 31 ) of the protective collar ( 24 ). 7. High-current circuit board connector according to claim 5, characterized in that the in the recesses ( 54 , 55 ), also by 90 ° angled contact pins ( 12 , 13 ) are embedded in this and from the half-shell-shaped section of the connector housing lower part ( 7th ) protrude in half and their pin sections ( 32 ) can be inserted into an axial access bore ( 28 ', 29 ') of the protective collar ( 24 ) up to its outer end. 8. circuit board high-current plug device according to one of claims 5-7, characterized in that the subdivision of the connection side ( 71 ) of the cable facing section of the connector housing lower part in laterally spaced recesses ( 54 , 55 ) by a centrally along the Housing led also 90 ° angled central web ( 50 ) and that in the section of the pin section ( 33 ) leading to stiffen the housing wall and to support the pin sections over the recesses ( 54 , 55 ) transverse and diagonal walls ( 51 , 52 ) and that for the mounting of the pin sections ( 32 ) in these walls, upwardly opening, centrally applied semicircular openings with a diameter corresponding to that of the pin sections ( 32 ) are created. 9. high-current circuit board connector according to one of claims 5-8, characterized in that in the half-shell-shaped housing upper part ( 8 ) corresponding to the system of the recesses ( 54 , 55 ) in the lower part of the connector housing ( 7 ) two laterally spaced recesses ( 54 ', 55 '), which are also divided into two sections ( 69 ', 70 ') angled at 90 ° to each other and for guiding and embedding the upper projecting halves of the angled contact pins ( 12. Partly inserted into the protective collar ( 24 ) , 13 ) serve. 10. High-current circuit board connector according to claim 9, characterized in that a first section ( 69 ') of the recesses ( 54 ', 55 ') in the direction of the receptacles ( 67 ) of the strain relief clamp ( 9 ) and the second angled to it Section ( 70 ') of the recesses ( 54 ', 55 ') via an access bore ( 28 ", 29 ") made in the end face ( 8 ') of the upper housing part and a corresponding one on the inner end face ( 8 ") of the protective collar ( 24 ) created access hole in a longitudinal receptacle ( 30 , 31 ) of the protective collar ( 24 ). 11. High-current circuit board connector according to claim 9 or 10, characterized in that to form the recesses ( 54 ', 55 ') in the middle along the upper part of the connector housing ( 8 ) also in the lower part ( 7 ) by 90 ° angled center webs ( 50 ') are guided and that in the angled pin section ( 32 ) leading section of the recesses ( 54 ', 55 ') for stiffening the housing wall and for mounting the pin sections ( 32 ) over the recesses ( 54 ', 55 ') transverse and Diagonal walls ( 51 , 52 ) run, the walls being provided with outwardly opening, semicircular openings with a diameter corresponding to that of the pin sections ( 32 ). 12. High-current circuit board connector according to one of claims 2-11, characterized in that an attachment of the connector housing lower part ( 7 ) and upper part ( 8 ) by a through or threaded bore ( 58 , 59 ) with screw connections and / or by lateral snap hooks ( 35 ) which protrude from one housing part into the other housing part and can be fixed against locking shoulders ( 60 , 61 ) of the opposite housing part. 13. High-current circuit board connector according to claim 12, characterized in that a screw connection of the upper and lower housing part ( 7 , 8 ) in the vicinity of the protective collar ( 24 ) and a further holder on the cable connection side ( 71 ) by along the Guide ( 68 ) of the strain relief clamp downward to the opposite housing part leading snap hooks ( 35 ) and locking shoulder ( 60 , 61 ). 14. High-current circuit board connector according to one of claims 1-13, characterized in that the socket housing ( 8 ) is formed in one piece and extends in the plugging direction of the protective collar ( 24 ) and plug-in extension ( 25 ), longitudinal receptacles ( 73 , 74 ) to insert the contact sockets ( 13 , 14 ) open towards the rear of the socket housing ( 11 ) and that to fix the contact sockets ( 13 , 14 ) by means of a clamping piece ( 35 ') between the longitudinal receptacles ( 73 , 74 ), a transverse to these receiving slot ( 75 ) opening towards the underside of the housing is created with a guide for the clamping piece ( 35 '). 15. High-current circuit board connector according to claim 14, characterized in that the fixing of the contact sockets ( 14 , 15 ) by the clamping piece ( 35 ') takes place in a circumferential groove created therein. 16. High-current circuit board connector according to claim 14 or 15, characterized in that the longitudinal receptacles ( 73 , 74 ) in the socket housing ( 11 ) are continuously applied to the end of the omissions ( 76 , 76 ') of the connector lugs ( 25 ) which the socket part ( 33 ) to be plugged come to rest. 17. Circuit board high-current plug device according to one of claims 1-16, characterized in that for fastening the plug part ( 10 ) plugged with the plug part ( 6 ) a latching hook ( 26 ) on the outside ( 24 ') of the protective collar is pivotably applied which can be snapped behind a transverse rib ( 63 ) which projects laterally on the outside of the can housing ( 11 ). 18. High-current circuit board connector according to one of claims 1-17, characterized in that as fastenings of the socket part ( 10 ) on the circuit board ( 2 ), the socket housing ( 11 ) on the broad side serving as a supporting surface from the underside projecting fixing lugs ( 19 , 20 ; 19 ', 20 '). 19. High-current board connector according to claim 18, characterized in that laterally on the narrow sides of the socket housing ( 11 ) U-shaped clips ( 21 , 22 ) can be fixed, which with locking lugs ( 36 , 37 ; 36 ', 37 ') protrude from the underside of the box housing and how the fixing lugs ( 19 , 20 ; 19 ', 20 ') can be inserted or fixed in the board bores ( 43 ). 20. High-current circuit board connector according to claim 17, characterized in that there is a laterally projecting U-shaped bracket ( 38 , 39 ) for fastening the clips ( 21 , 22 ) to the narrow sides of the socket housing ( 11 ) which one of the clips ( 21 , 22 ) can be inserted and fixed in relation to an extension ( 66 ), which is spaced above the bracket ( 38 , 39 ) and serves as a clip lock. 21. High-current board connector according to one of claims 1-19, characterized in that the connecting pins ( 41 ) of the multi-leg contacts ( 18 , 18 ') on one side a cross-sectional taper above the end portion to be introduced into the board bore ( 42 ) while narrowing the Has diameter of the otherwise straight outer pin shaft. 22. High-current circuit board connector according to claim 20, characterized in that the connecting pins ( 41 ) of the multi-leg contacts terminate in a tip, with a bevel or angled portion ( 46 ) on both sides for easier insertion into the circuit board bore ( 42 ). 23. High-current circuit board connector according to claim 21, characterized in that
a three-leg contact ( 18 , 18 ') comprising three connecting pins ( 41 ) is provided as multi-leg contact, each of which has two pin sections ( 41 ', 41 ") angled at 90 ° to one another, of which the first pin sections ( 41 ') each have a common one , bolt section ( 17 ) extending from the rear of the contact socket ( 16 , 16 ') in the axial direction of the contact socket ( 14 , 15 ) and extending in parallel as elongated, web-shaped contacts at a distance from one another until the second pin section ( 41 ") is bent,
wherein the first pin portion (41 ') of two outer pins (41) (41 opposite to the first pin portion') of this middle terminal pin (41) are designed to be longer, and thus the bend into the second post portion (41 ") of the terminal pins outside at the two Pins later. 24. PCB high-current connecting device according to claim 22, characterized in that the first and second pin portions (41, 41 '") of the three connecting pins (41) are guided with their portions in each case parallel to one another, said second pin portions (41") are guided over the bearing surface of the can housing ( 11 ) with a section projecting outwards. 25. High-current circuit board connector according to claim 23 or 24, characterized in that the three connecting pins ( 41 ) from the common bolt section ( 17 ) on the rear of the contact socket ( 16 , 16 ') are guided as spaced apart elongated web-shaped contacts, which enlarge and widen laterally at a distance from the bolt section ( 17 ) in the manner of a fork, their common width being greater than the diameter of the bolt section ( 17 ), and the pin sections being flattened to a height less than that of the bolt section. 26. High-current circuit board connector according to one of claims 23-25, characterized in that the elongated, flattened web-shaped pin sections ( 41 ', 41 ") are each rectangular in cross section over the entire length except for the end section. 27. High-current circuit board connector according to one of claims 23-26, characterized in that the pin sections ( 41 ', 41 ") designed as elongated, flattened web-shaped contacts are aligned parallel to one another, the connecting pins being angled into a first and second pin section ( 41 ) have a common larger cross-sectional area over their entire length than the cross-sectional area of the bolt section ( 17 ) starting from the rear of the contact socket ( 16 , 16 '), this cross section also being larger than the cross-sectional area of the other contact socket sections. 28. High-current circuit board connector according to one of claims 1-27, characterized in that the plug part ( 6 ) and socket part ( 10 ) are provided with protective collars ( 24 ) and plug-in extension ( 25 ), the plug-in extension ( 25 ) in two parallel, mutually spaced lugs ( 25 ', 25 ") running in the plugging direction, in each of which one of the socket parts ( 33 ) of the contact sockets ( 14 , 15 ) is guided and that at least one longitudinal web ( 48 , 48 ', 48 ", 48 '''), wherein in the protective collar ( 24 ) longitudinal recordings ( 30 , 31 ) for these two mutually parallel approaches ( 25 ', 25 ") of the plug-in attachment ( 25 ) are provided and in the these longitudinal receptacles ( 30 , 31 ) dividing wall or a wall section ( 24 ") at least one longitudinal groove ( 49 , 49 ', 49 ", 49 ''') running in the plugging direction, into which the longitudinal web ( 48 , 48 ', 48 ", 48 ''') d it is insertable ( 25 ) of the socket part can be inserted. 29. PCB high-current connecting device according to claim 28, characterized in that the spaced between each other lugs (25 ', 25 ") extending in plug-in direction longitudinal web (48, 48', 48", 48 ''') of the plug-in projection (25 ) is formed by a web section starting from one of the projections ( 25 ', 25 "), directed towards the adjacent projection or connecting these projections. 30. High-current circuit board connector according to claim 29, characterized in that the longitudinal webs ( 48 ', 48 ", 48 ''') are placed laterally outside the connection plane through the center of the socket parts ( 33 ). 31 board high-current connector according to claim 29 or 30, characterized in that the longitudinal grooves ( 49 ', 49 ", 49 ''') in the wall or the wall portion ( 24 '), the two longitudinal receptacles ( 30 , 31 ) divide the protective collar ( 24 ), laterally outside of the connecting surface running through the center of the two pin sections ( 33 ) and have a depth at least corresponding to the width of the longitudinal web to be plugged ( 48 ', 48 ", 48 ''') and from a longitudinal receptacle ( 30 , 31 ) of the protective collar extends fully or partially in depth to the laterally spaced further longitudinal receptacle ( 30 , 31 ) of the protective collar. 32. circuit board high-current plug device according to claim 31, characterized in that the plug-in extension ( 25 ) forming, spaced apart extensions ( 25 ', 25 ") are not connected to each other by a web sections running continuously between them, but that of the one extension ( 25 ', 25 ") and / or the other extension ( 25 ', 25 ") only in the direction of the opposite extension a longitudinal web ( 48 ", 48 "'') running along this extension in the plugging direction with a height extends in the direction of the opposite approach, which is less than the distance between the approaches to each other. 33. High-current board connector according to claim 32, characterized in that the longitudinal webs ( 48 ", 48 ''') directed towards the opposite sides of the spaced lugs are offset laterally at an angle to one another and directed past one another on the outside of the lugs ( 25 ', 25 ") of the connector ( 25 ) are created. 34. circuit board high-current plug device according to claim 32 or 33, characterized in that in the protective collar ( 24 ) dividing wall section or the wall ( 24 ") a longitudinal groove ( 49 ", 49 ''') of one or each of the two Longitudinal receptacles ( 30 , 31 ) are aligned starting in the direction of the adjacent receptacle, the longitudinal grooves ( 49 ", 49 ''') being set at an angle to one another in accordance with the longitudinal webs ( 48 ", 48 ''') and for overlapping in their Dimensions are adapted to the dimensions of the longitudinal webs ( 48 ", 48 ''').