DE2045474B2 - CABLE CONNECTION DEVICE WITH PLUG CONTACTS - Google Patents

Description

The invention relates to a multi-pole cable connection device with plug contacts with Conductor cores are connected and optional to produce certain contact connection combinations are individually lockable and releasable in a holder, preferably for Scha'tungs- or Distribution boards that have corresponding mating contacts.

Such cable connection devices are expediently used in modern circuit technology in electronic computers, in control systems and in telecommunications technology. These pluggable cable connection devices are used primarily as electromechanical line couplings to connect the on the circuit boards or distribution boards in very large numbers with little Distance between contact pins arranged next to one another and the signal lines of multi-core cables Cables or with the voltage or power supply lines. These cable connection devices are preferred also used as end plugs of flexible cable bridges, which are adjacent to each other

Electrically couple connected circuit boards to one another and keep them in their pushed position. By applying a

or the desired, easily detachable connections certain tensile force is the plug connection again

Detachable between the individual fields of circuit boards. This detachable plug connection that

connect with each other. can also be used in very small dimensions

The lines, which as individual lines or as 5 have the disadvantage that the production of a plug-in connection

Lead wires of a multi-core or a flat connection is quite cumbersome and time-consuming. Into the-

tape coaxial cable with the out of the surface of the particular in the case of circuit boards with a large

Wiring density is the production or the

bar are to be connected, loosening a contact connection are difficult at their ends and it

provided with cable end pieces, which are mostly fork-io can easily result in incorrect switching,

or contain pin-shaped resilient plug-in contacts. Due to the trend of modern circuit

As a result of the compact design, the dimensions are smaller and larger for the purpose of technology

avoidance of short circuits between adjacent packing density of the components in order to achieve this

Contact points the plug contacts in an insulating- higher signal processing speeds and

housing arranged. In a cable end piece, the connection can reduce manufacturing costs

lead one or more lines, mostly it is from printed circuit assemblies to each other

a signal line that flanges from two ground lines and with other components for the purpose of signal output

is kiert. exchange and the power or voltage supply

U.S. Patent 3,417,362 has become a problem. Which reduce to a minimum multipole, detachable cable connection device ao ed dimensions and the number of lines known, especially for flat cables *. or seen in a tight space, make jas stick or is, in which the individual, with a flexible line pulling out individual lines or cables connected, resilient contact plugs the Er- very difficult and in some cases almost unnecessary accordingly selectable in one of the opening options. Especially in the maintenance service, where fault finding or when changing the circuit housing block can be inserted or removed. finding the tightly packed contact connections Known connection device may take a lot of effort in the exercise parts, so that the correct lending Telecommunication circuit arrangements are very useful cables in the tangle of existing line connections; for the modern, iniaturized scarfing is time consuming on the one hand and error arrangements on the other or distribution boards, of which 30 is susceptible.

a very high packing density of contact points. For these reasons, this is often called for and in which weak, very short multiple connections to a multiple and steep signals are to be transmitted, no attempt has been made to follow up. Around expedient, since in these applications the co- also in the miniaturized circuit arrangements Axial lines similar three- or multi-core flat 35 a detachable plug connection and good transmission cables can be used as transmission lines, properties such. B. reliable contact points, andie have a certain wave impedance, matched equal wave impedance and the other which are also required at the contact connection points, multipole miniature connectors were used, to avoid signal distortion. Except for bindings made of high quality materials with covered large dimensions not created on the 40 shielded contact cells with the Signal and ground conductors are connected to the required dimensions. Disadvantageous can, there is another disadvantage of this well-known are above all the high costs of multiple facets Connection device in that for removal plugs as well as the fact that individual Verbineines Contact plug from the insulating housing a connection lines only with great effort from the Special tool is required. 45 multiple plugs can be removed or inserted

By the German utility model 1 969178 can. A troubleshooting, a signal check

would require a detachable electrical connection between or a wiring change as a result

flexible connection conductors, the ends of which require additional time expenditure.

shaped plug contacts are provided, and the object of the invention is to create a 50 plug-in cable connection device protruding from a circuit or distribution board, the pin-shaped counter-contacts known. This plug-in in a simple manner without spending a lot of time the device contains an approximately rectangular insulating insert or the removal of a cable end housing with a cavity, which on the plug-in piece or several and thus the associated side of a line or lines to the cross-section of the mating contact pin has an opening adapted to a multiple, through which the mating connector allows an arrangement similar to that, and the external contact pin in the cavity of the insulating housing, which can be mutually inserted and pushed out. To establish a contact connection of the connection arranged on the connection device, the insulating housing is made possible on the mating contact cable end pieces and the pin is also pushed and then the correct contact points are found in the cavity by a better overview of the insulating housing with one or two forked plug-in connectors relieved,
contacts are inserted so that they sit astride the mating contact pin according to the invention and thus the contact is achieved by making at least one plug contact in each case. Due to the slight spreading, held in an insulation forming a cable end piece, the fork legs are arranged to produce the contact housing, a contact pressure is generated for a detachable connection and a holding pocket on the holder serving as a connection with the holder is achieved that the fork legs on which the shows that a plate is provided as a holder, the cavity delimiting wall of the insulating housing in an end region at least one, the engagement with bias and this in its one and the locking of the retaining tab possible

contains opening and that the retaining tab and the plate 15 is arranged through a multiple cable arrangement opening so that the longitudinal axis of a 20 is wired, so that certain grounding rails 18 attached to the plate cable end piece in par and contact pins 17 are connected to each other, allelem distance extends to the plate surface. The cable assembly 20 includes the Anschlußvor This invention-plug cable terminal 5 devices 21a and 21b rn both ends of the cable, the device is simple and inexpensive to manufacture Each terminal device consists of a holding and is an improvement of circuit technology. You plate 22, which mitein a number of cable pieces 23 is also suitable for the cabling of contacts connects to the other, which in turn connects the plug-in contacts to the plate, z. B. printed circuits, on the closest production of the electrical connection with the ErRaum and preserves the possibility of subsequent io training rails 18 and the contact pins 17 enteinfachen connection exchange. keep. Between the connection devices 21

In addition to their versatility, there is a corresponding number of cables, Another advantage is that the one at the end of the retaining plates 22 can be used with the thumb and Retaining plate detachably to be attached cable end pieces index finger are grasped so that the whole can be unipolar or multi-pole, z. B. such that 15 locking device 21 after initial attachment a signal line is surrounded by two ground conductors, onto the contact plate 15 by pulling on the holder so that an overplate similar to a coaxial line is separated from the contact plate 15 again, management results. The retaining plates 22 unite the cable end pieces 23

The following is the present invention and the cables 24 of the entire assembly into one Hand of an embodiment in all details ao unit. The cable end pieces 23 are individually in the

described. The drawings, which are also inserted to the holding plate 22 and can be of this

Explanation serve, shows can be solved optionally and individually. F i g. 1 is a perspective view of a multiple from FIGS. 2 and 3 is best seen Cable arrangement on a contact plate that the cable arrangement 20 from the connection F i g. 2 and 3 plan view and main view of as direction, 21 α and 21 b consists of six Multiple cable connection devices, which the cables 24 σ to 24 / are connected to one another. the Embody the invention, connecting devices each consist of a holding Fig. 4 is the main view and partial cut plate 22a and 22b, in which the cable end pieces

of a single cable end piece to show FIGS. 23a to 23 / or 23g to 23 / are inserted. the

Connection of the cable with the plug contacts, 3 ° cable end pieces 23 are flat, cube-like bodies F i g. 5, 6, 7 plan view, main and side views by and are parallel, narrow by the holding plate 22

the retaining tab of a cable end piece, held side by side.

F i g. 8 shows the view of the retaining plate of a multiple As in FIG. 4, each has a cable Cable connector, 24 three conductive wires 25 in an insulating sheath

F i g. 9 and 10 a side view with some 35 26, which has a special cross-section of the retaining plate over its entire length, to show the fastening section, so that the individual conductors can easily be separated from each other by a cable end piece in the same, and freed from the insulation.

F i g. 11 is a side view, partly in section, of the can. The two outer conductors 25 are me-

of a multiple cable connection, which shows how mechanically and electrically with a connector 27 and the

A retaining plate connects the cable connector to the matching * o middle conductor with a connector 28, the

Connections of a contact plate pushes and both are enclosed in the cable end piece. the Fig. 12 is a view similar to Fig. 11 of the plug 27 and 28 are designed as fork contacts. Illustration of how the retaining plate is used to separate the det, the prongs of which are essentially flat and in Cable connector from the contact plate is used. lie on a common plane. The cable end piece To improve the representation, the individual «23 has a slot 29 in the appropriate shape

nen Fig. 1 to 12 in a considerably enlarged and inclusion of a leg of the grounding rail 1 "*, so

drawn in different scales. that the plug 27 with this electrical contact

The present invention can be made as those skilled in the art can make. The cable end piece 23 also has

will recognize, in various other Ausfüh- also a hole 30 that fits one to the contact pin 17-

ments are embodied as the one shown. You send 50 has a cross section, so that the connector 28

is particularly suitable for cabling with a contact pin 17 in electrical connection

Contact plates of printed circuits, which one can step. The connectors of the plugs 27

relatively large number of contact pins per unit area and 28 and the cable 24 are in a pressed body

exhibit. In the present illustration, 31 non-conductive materials are embedded. Part of the

such a contact plate and a corresponding body 31 protrudes from the cable end piece 23,

the connection device ran out, although this The outer edges of the contact prongs of the connector

Of course, there is no limitation in the design 27 and 28 have a claw-like one at the end

run"! should mean. Projection 32, with which it is located in the cable end piece 23

Fig. 1 shows a contact plate 15, which hold with and only when using a special multiple Layers of printed circuit boards 16 6 »can be pulled out with a tool or by force forms a unit. Internal heads are with vrerecki- can.

gen upright contact pins 17 as well as with The body of a cable end piece consists of U-shaped grounding rails 18 connected on plastic, non-conductive plastic. From the

the pack of circuit boards 16 are constructed. Figures 5 through 7 show that each cable end piece

The ground rails 18 are of support pins 19 65 a part of a fastening device with the

held at a distance from the plate surface. Holder 22 has. This fastening device consists

The contact pins 17 are in rows parallel to the Er- from a retaining tab 34, which consists of a narrow

extension rails 18 arranged. The whole "contact longitudinal rib 35 and a cover plate 36 together-

2098

puts. The rib 35 is firmly connected to the body of the cable end piece, as is the cover plate 36 with the rib 35. The cover plate 36 of the retaining bracket 34 lies (at a distance / i) parallel to the adjacent one Body surface of the cable end piece (Fig. 6).

Referring to FIG. 8, each holding plate 22 has a number of slots 38 ″ to 38 ″, which corresponds to the number of cable end pieces that can thus be combined to form a unit. All slots contain, for example the slot 38 rf, ίο narrow end regions 39 and 40 and a widened center piece 41. The width and shape of a slot 38 depends on the size and shape of a retaining tab 34, so that a cable end piece 23 is pushed into the retaining plate 22 can be. This process is better illustrated in Figures 10 and 11, which show how the retaining tab 34 and slot 38 interlock. For this purpose, the width W \ (FIG. 7) of the flat part of the retaining tab 34 is approximately equal to the width W 2 (FIG. 8) of the central piece 41 in the slot 38. The width of the support rib 35 is substantially equal to the width W 3 of the slot ends 39 and 40. The length L (Fig. 6) of the support rib 35 is approximately equal to the length L 2 (Fig. 8) of the slot portions 39 and 41 but longer than the slot end 40. The length of which is denoted by L 4 . The thickness /, Fig. 9) of the holding plate 22 corresponds approximately to the height / 1 (FIG. 6) of the support rib 35. The retaining tabs 34 and the slots 38 are dimensioned to provide a mutual sliding fit. This is achieved in that the dimensions of the retaining tabs 34 are kept slightly below those of the slots 38. However, from FIGS. 5 and 6 that the flat part 36 of the adhesive tab is longer than the support rib 35 so that it protrudes beyond it.

In Fig. 9 shows the process of pushing the cable end piece 23 into the holding plate 22. For this purpose, the retaining tab 34 is first aligned with the central part 41 of the slot 38, as shown in dashed lines. The cable end piece 23 is then moved in the direction that the protruding edge of the flat part 36 of the retaining tab slides through the wide slot part 41 until the end of the retaining tab hits the lower inner edge of the slot part 40, as shown in FIG. 9 represents in full lines. Fig. 10 now shows. that in a combined assignment of the left part of the cable end piece 23 is pushed out of the dashed position to the left in the direction of the arrow a , so that the support rib 35 penetrates into the sä slot part 39. At the same time, the rear part of the cable end piece 23 is pivoted upward in the direction of arrow b until the upper body surface of the end piece 23 lies on the underside of the holding plate 22, as shown with lines drawn in full. In this position, the cable end piece 23 with its retaining tab 34 can be displaced with respect to the plate 22 between the end regions of the slot 38. The same behavior in reverse order makes it possible to separate the cable end piece 23 from the retaining plate 22 again. However, this can also be done as described below.

According to the illustration in Fig. U, the holding plate 22 is gripped between thumb and forefinger, when the cable connection device 21 is to be plugged onto the contact plate 15. The flexibility the holding plate 22 allows the index finger to be inserted between the latter and the cable 24. the Cable end pieces 23 are then aligned with the matching contact pins 17 and the grounding rail 18 and the entire arrangement is pressed onto the contact plate 15. This plugging movement causes that the cable end piece 23 abuts the end 39 of the slot 38, the impact movement over the end the carrier rib 35 is transferred from the holding plate 22 to the end piece 23. The movement only stops when the holding plate 22 is the one shown in FIG Has reached position wherein the lower end of plate 22 is on top of the pack of circuit boards 16 and thus ultimately the impact force no longer hits the contact pins 17 directly and ground rails 18 is exercised.

To separate the cable connection device 21 from the contact plate 15, the retaining plate is used again

22 taken, as in F i g. 12 shown. Similar to the movement to plug in the connecting device is now pulled. Through this train the slides Retaining plate 22 relative to the cable end pieces 23 to the support ribs 35 in the ends 40 of the slots 38 nudge. From this point on, the further pulling movement separates the cable connection device 21 from the grounding rail 18 and the contact pins 17.

The lower slot 40 with its length L 4 is shorter than the upper slot 38 for the following reason. If a connection device 21 is placed on a contact plate 15, a single cable end piece should be used

23 can optionally be removed. For this purpose, the holding plate 22 is pulled into the position 22 b of FIG. If the pulling movement was continued, the entire cable connection device 21 would now be disconnected, as in FIG. Instead, the holding plate 22 is bent into the dashed position in this position, as shown in FIG. 12, and a tool not shown is brought into engagement with the cable end piece 23 through the slot 3f. The retaining tab 34 can slide through the slot 38 in this position when the cable end piece 23 is pulled.

Numeral 45 in Fig. 8 shows that a F.cke de Retaining plate 22 is beveled. This makes it possible to check at a glance whether all cable connections devices 21 are correctly plugged onto the contact plate 15. In addition, the de Holding plate 22, which is gripped between the fingers in each case, in a simple manner identification mark are attached, which point to the associated Plat of the contact pins 17, where the pertaining Kabelanschlussvorrichtuns 21 is to be used.

For this purpose 2 sheets of drawings 209 510/3!

2098

Claims (11)

Patent claims: 1. Multipole cable connection device with plug cones which are connected to conductor cores and which are optionally to be used individually lockable and releasable in a holder for the production of certain contact connection combinations, preferably for circuit boards or distribution boards which have corresponding mating contacts, characterized in that at least one plug contact in each case (27,28) is arranged in a self-retaining manner in an insulating housing which forms a cable end piece (23) and which has a retaining tab (34) which is used for detachable connection to the holder (22) and a plate (2? A, 22b) is provided as the holder which in one end region contains at least one opening (38) enabling the engagement and locking of the retaining tab and that the retaining tab and the opening are arranged so that the longitudinal axis of a cable end piece attached to the plate is parallel to the surface of the plate extends. 2. Connection device according to claim 1, as characterized in that the insulating housing of a cable end piece (23) essentially has one rectangular «. Hollow body forms that the holding tab (34) extending in the longitudinal direction as a projection on an outer surface side of the insulating housing is arranged, unr 'that the with a mating contact (17, 18) of the control panel (15) Corresponding plug contact (27, 28) inserted into the insulating body cavity in a self-retaining manner is. 3. Connection device according to one of claims 1 or 2, characterized in that the retaining tab (34) has an elongated shape and a T-shaped cross section and consists of a narrow, with an outer wall of the cable end piece (23) firmly connected support rib (35) and a cover plate (36) fixedly arranged on this, the width (Wl) of which is slightly smaller than the width of the opening (38) and that the distance (/ ») of the cover plate from the surface of the insulating housing is slightly greater than the thickness (0 of the Holding plate (22) is. 4. Connection device according to claim 1, characterized in that the holding plate (22) consists of a thin, elastically flexible material 5 'that the cable end pieces (23) on a End of the holding surface are releasably attached and that the remaining surface for movement of the whole Device can be grasped with fingers. 5. Connection device according to one of the claims 1 or 4, characterized in that the opening (38) arranged in the holding plate (22) and receiving the holding tab (34) three serial interconnected slots extending in the plugging direction (38 ... 41) is formed that the middle slot (41) an insertion or removal of the retaining tab (34) of a cable end piece enabling width (^ 2) and that the two outer Slots (39, 40) to enable a sliding stroke a slightly larger width (^ 3) than the Carrier rib (35) of the retaining tab (34) have 'FiB. 8Ί. 6. Connection device according to one of claims 1, 4 or 5, characterized in that a number of parallel, slot-shaped openings (38) are attached that these openings are arranged at their spacing are that their division of the division of the mating contacts (17) on the circuit board (15) is equivalent to. 7. Connection device according to one of claims 1, 4, 5 or 6, characterized in that that the retaining plate (22) has a position identification feature that is easily recognizable by sight and / or touch (45) is provided (Fig. 8). 8. Connection device according to one of claims 1, 4, 5, 6 or 7, characterized in that that the holding plate (22) consists of a flexible insulating material. 9. Connection device according to one of claims 1 or 4 to 8, characterized in that that the free surface of the holding plate (22) contains identification marks which are assigned to the Opposite place? ontakte (17) indicate where the cable connection direction is to be used. 10. Connecting device according to one of claims 1, 2 or 3, characterized in that each with the cable end pieces (23) on the retaining tab (34) opposite surface side a label (23 a ... 23 /) that identifies the cable end piece in question (Figures 1 and 2). 11. Connection device according to one of the claims 1 to 3 or 10, characterized in that the cable end pieces (23) at the front in their insulating housing in a plane, perpendicular to the plane of the holding plate (22), have at least one inlet opening (29, 30) which has the shape of the mating contact (17,18) is adapted.