JPH07231537A - Connection box and connecting cable for forming connecting device for data network - Google Patents

Abstract

PURPOSE: To safely and reliably provide a set of cost-effective connecting box and connecting cable used in a network by sealing a connection completely and assemblying in a continuous process. CONSTITUTION: A laminated circuit board with a plurality of layers is used in a connecting box 15. A conductive band 43 such as a coaxial cable is inserted between two conductor faces 41. In addition, functional sockets 18 and 19 are tightly surrounded by shield plates 44, 45, and 46. Similarly, an inserting part of a functional plug 23 in a joining cable 32 is surrounded by a shield palate.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a plastic housing, a circuit board, two BNC sockets, and a pair of corresponding functional plugs arranged on opposite inner sides of a plastic socket housing. The central contact sleeve of the BNC socket comprises at least one functional outlet having at least two switching contact tongues which are in electrical contact with each other when not inserted between them, the central contact sleeve of the BNC socket comprising: Directly electrically coupled via a first pair of mutually contacting switching contact tongues and corresponding conductor strips of the circuit board, the conductor strips being arranged on the first flat side of the circuit board. And covering a conductor strip over a large area on a second flat side parallel to and spaced from it, to the shield terminal of the BNC socket and to the contact tongue. A connection box for forming a connection device for a data network, wherein a first conductor surface is formed that is electrically conductively connected to the switching contact tongue of the second pair of bodies; A BNC plug is provided at one end of the connecting cable and a functional plug is provided at the other end with at least two contact tongues arranged on opposite outer sides of the plug-in part, in each case A signal line is connected to the two contact tongues of the first pair of contact tongues, the signal lines being insulated and shielded from each other up to the BNC plug and jointly connected to its central contact pin. A signal line shield is electrically connected to a second pair of contact tongues of the contact tongue for data processing in the connection box, in particular in the connection box according to any one of claims 1 to 8. A connection cable for connecting devices. On Bull.

[0002]

Both objects are disclosed, for example, in German Utility Model No. 90 00 754. The main purpose of a data network is to interconnect multiple data processing devices, or to connect them to a central computer or the like. For this purpose, shielded cables (coaxial cables) with multiple junction boxes along the way are permanently installed, so that the device is suitable at various points in the room or throughout the building, as needed. It becomes possible to be connected by various connecting cables. Thus, the advantage of the functional outlet developed for the telephone junction box is that the data network is never disturbed, whether or not the connecting cable is plugged in by its functional plug. Therefore, inadvertent gills cannot occur. The disadvantage is that the most important transmission requirements, such as immunity to radiated noise, can only be met for such data networks at fairly good frame boundaries. This is because the coaxial system is disturbed in the area of the junction box and the functional plug. It is known from the above-mentioned utility model to provide a special shield for the conductor strips on the circuit board in the junction box by means of large copper surfaces arranged opposite each other.

There is also a similar type of junction box, the housing of which is made of zinc die casting. Similarly,
The functional plug of the connecting cable was placed in a zinc die casting. Encapsulations made in such a way prevent incoming and outgoing radiated interference, but nevertheless the coaxial system is disturbed, resulting in acceptable loss of transmission and signal distortion. Moreover, this complete encapsulation is very expensive and in some applications it is desirable to have free access without grounded metal parts to prevent discharge sparks during electrostatic charging. .

[0004]

The object of the present invention is thereby to make it safer and more reliable for serial production.
Meet the transmission requirements in a cost-effective manner,
The plastic housing, the circuit board, the two BNC sockets, and the pair of plastic socket housings are arranged in pairs on opposite inner sides and electrically when the corresponding functional plugs are not inserted between them. Comprising at least one functional outlet having at least two switching contact tongues in conductive contact with each other, the central contact sleeve of the BNC socket having a first pair of switching contact tongues in contact with each other Directly electrically connected via the tongue and the corresponding conductor strip on the circuit board, the conductor strip being arranged on the first flat side of the circuit board and parallel to it at a distance Cover the conductor strip over a large area on the second flat side of
For a data network formed with a first conductor surface electrically conductively coupled to a shield terminal of an NC socket and to a second pair of switching contact tongues of the contact tongue To provide a connecting box for forming a connecting device and a connecting cable suitable for the connecting box.

[0005]

This object is achieved over the first flat side surface of the circuit board having the conductor strip.
On a third flat side, parallel to it, at a distance from the flat side of, covering the conductor band over a large area and electrically coupled to the first conductor surface. Providing an insulating layer having a conductor surface and mounting a shield electrically connected to the conductor surface on at least three external surfaces of the plastic housing of the functional outlet, projecting substantially at right angles to the circuit board. And the plug-in part of the functional plug is characterized in that the inner wall leaves the annular gap free with respect to the plug-in part and for that part it is spaced from the plug-in part. It is characterized in that it is surrounded by a plastic mounting body which surrounds the shield plate, is arranged over at least a first pair of contact tongues and is electrically conductively coupled to the shield of the signal line. It is accomplished by connecting a cable to.

The conductor strips on the circuit board are surrounded on both sides by the shielding surface, so that the same situation as for coaxial cables appears here. Shields attached to and near each of the functional outlets are spaced from the switching contact tongue similar to the features of coaxial systems. The shield also surrounds the plug-in part of the functional plug in a similar manner. The shielding plate between the functional outlet and the functional plug is
It goes without saying that they engage each other like plugs and sockets. The coaxial system of the data network thus continues as far as possible in the area of the connection points as well. This system is isolated from the outside,
The junction box can be made of plastic in the housing in a conventional manner. The junction box is also comparable to an unshielded functional plug.

Another feature and improvement of the invention is that the circuit board is constructed as a multi-layer board such that the two outer layers form the first and second conductor surfaces and the center layer forms the conductor strip. And the shield is bent in a generally U-shape on two parallel flat sides and reaches the narrow side of the plastic housing aligned at right angles to it and the shield is integrally formed. , The shielding plate has a plurality of soldering lugs soldered to the conductor surface, or the narrow side of the plastic housing, surrounded by the shielding plate, is directly adjacent to the first pair of switching contacts. Or the shielding plate has a plurality of lamellae integrally formed and elastically protruding from the plastic housing to contact the inner wall of the shielding sheath of the functional plug, A contact outlet forming a parallel connection with a BNC socket and having two adjacent pairs of switching contact tongues adjoining a narrow side surrounded by a shield and contacting shield terminals. A second pair of the housings adjacent the cut-out, narrow sides of the shield of the plastic housing, or the junction box has two functional outlets, the switching contact tongue of which is electrically connected. A serial connection to each functional outlet such that each functional outlet is surrounded by a shield plate separately, or a plastic housing is configured to be divided into two parts and mounted on it, and a connection box; The board
The two inner facing flat sides and the narrow inner side of the plastic mounting body, which are aligned at right angles to it and which are lined by the shield, are narrowed by the inner narrow side of the contact tongue. Adjacent to the pair, or functional plugs are connected in parallel to the signal line in each case,
A plastic having two adjacent pairs of contact tongues adjacent to the inner narrow side lined by the shield and another pair of contact tongues in contact with the shield being cut out from the shield Adjacent to the inner narrow side of the mount, or the shield is bent into a generally U-shape, and the U-bow extends at least partially over the exposed shield of the signal line. The two limbs of U are almost parallel to each other and reach the front insertion edge from the contact tongue at a certain distance in the middle of contact with it and covering the two inner flat sides. And in each case an angled piece that projects from two limbs towards a common center plane, whose surfaces complement each other and line the narrow inner side of the plastic fitting. Or the plastic mounting body is connected in the center plane And a connection so that the plastic mounting body has a rectangular outer contour when viewed from the insertion side, which is formed by two housing shells which can also insulate and surround the entire shield with cable holder. The cables, and with the aid of the drawings, will be clarified by the following description of an exemplary embodiment.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The circuit diagram of FIG. 1 shows a data input busbar 11 connected to a BNC plug 12. The data output busbar 13 is connected to another BNC plug 14. In the meantime, it is shown here only in a diagram, first of all the BNC plug 12 and
A connection box 15 having two BNC sockets 16 and 17 for connecting 14 is arranged. It further comprises two functional outlets 18 and 19. Functional outlets 18 and 19 (the two are exactly the same) are placed face-to-face in pairs as shown for functional outlet 19 to provide electrical conduction when the functional plug is not plugged in. It has a first pair of switching contact tongues with two switching contact tongues 21, 22 in contact with each other. But,
As shown in the left hand functional outlet 18, when the functional plug 23 is plugged in, the switching contact tongues 21,22
Are separated from each other.

The functional plugs 23 are arranged in pairs on the opposite outer sides of the plug-in parts 24, and the signal lines 27, 28 are provided.
Have a first pair of contact tongues with contact tongues 25 and 26 respectively connected thereto. These signal lines 27, 28
Are insulated from each other and electrically shielded. Their other ends are connected together to the central control pin 29 of the BNC plug 31. The two signal lines 27, 28, together with the functional plug 23 and the BNC plug 31, are data processing devices.
Form a prepared tie-tie cable 32 used to connect 33 to the data network.

In this case, the signal path is from the data bus 11 via the central control pin 34 of the BNC plug 12 to the central control tube 35 of the BNC socket 16 and from there to the functional outlet 18.
To the central contact pin 29 of the BNC plug 31 via the contact tongue 21 of the functional plug 23 and the signal line 27. Here, the signal path branches, on the one hand, towards the data processing device 33 and, on the other hand, further via the signal line 28 back to the contact tongue 26, from which the switching contact tongue of the functional outlet 18 is reached. Via the switching contact tongues 21, 22 of the functional outlet 19 via 22 to the central contact sleeve 36 of the BNC socket 17, from which the signal path is finally connected to the BNC plug 14. It also leads to the data output busbar 13 via the central contact pin 37.

Although not shown in FIG. 1, each functional outlet 18, 19 need not have a switching function in the plane below the illustrated switching contact tongues 21, 22 and the BNC
It has a second pair of contact tongues electrically coupled to the shields 38 of the sockets 16,17. The functional plug 23 is connected in parallel with the shield 39 of the signal line and is electrically connected to the shield 38 via the second pair of contact tongues of the functional outlet. It also has a contact tongue.

Furthermore, although not shown in FIG. 1, each functional outlet 18, 19 is also electrically connected in parallel with it in the plane above the illustrated pair of switching contact tongues. Another pair of contact tongues is also conveniently included. Functional plug
23 also has yet another pair of contact tongues. Therefore, when contacts are to be made at some point, each parallel contact ensures future functionalization.

In FIG. 1, the first conductor surface 41 and the second conductor surface 41 on each side of the conductor strip 43 of the circuit board are additionally and entirely connected to the shield 38. Outlet 1
The shields 44 and 45 in the area of 8, 19 are shown diagrammatically. The functional plug 23 is also a shield plate electrically connected to the shield 39.
Made to be sheathed at 46.

FIG. 2 shows a cross-sectional diagrammatic view of a small area of a circuit board 47 manufactured as a multi-layer board. The conductor strip 43 is a base plate
Attached to the first flat side 48 of 49, the first conductor surface
41 is arranged on the second flat side surface 51. An insulative support 52 on the outer flat side 53, on which the second conductor surface 42 is made, is arranged on the first flat side 48. Two conductor surfaces 4 that extend over a large area of the entire surface of the plate
1, 42 are the through conductors for the inner conductor strip.
-plating) 54, in each case having cut-out islands in the area in which it is formed. Conversely, the inner conductor strip bypasses the through-coat 55, which connects the two outer layers.

FIG. 3 shows the general design of the junction box 15. The circuit board 47 is fitted on its upper surface with at least one functional outlet 18, with BNC sockets 16, 17 formed as angled outlets protruding from its lower surface. The circuit board 47 has a plate-shaped base portion 56.
It is mounted in a plastic housing 60 which is divided into two parts consisting of a cap part 57 and a cap part 57. The base portion 56 has an opening 58 for the passage of the connecting base 59 of the BNC sockets 16,17. A metal mounting ring 61 used to secure within a wall box 62 is securely coupled to the plastic housing 60. A covering plate 63 is arranged on the upper part for clamping even in the large-sized covering body 64. The functional outlet 18 is surrounded by a shield 44 on three sides, as can be better seen in FIG.

According to FIG. 4, the functional socket 18 is a columnar plastic with two parallel, larger flat sides 67, 68 and two narrow sides 69, 71 aligned at right angles to it. -Has a housing 66. The top side can be seen with a switching contact tongue with a bayonet opening for the corresponding functional plug, which projects inwards and whose soldering lug projects outwards from the plastic housing 66 at the bottom. . The shield 44 has two large area lateral limbs 72, 73 that are bent in a generally U-shape and directly attached to the flat sides 67, 68, and a lateral limb 74 attached to the narrow side 69. Have. In addition, each limb has an inwardly angled ledge 75 at the top that overlaps somewhat on the upper side of the plastic housing. Protrusion 75
Has a strengthening effect. The shield plate 44 has a plurality of soldering lugs 76 projecting downward and integrally formed therewith.
In each case, a generally E-shaped region is extruded into the limb lamella 77 of the limb which bulges somewhat outward from the plastic housing. They serve for elastic contact with the shielding sheath of the functional plug, as will be explained in more detail below.

Due to the U-shape seen in FIG. 4, the shield 44 can also be simply bent. The narrow side 71 of the plastic housing 66 is then placed in the region of the U-shaped opening and is connected to the shield, which replaces the missing metal wall and completes the socket shield. The aforementioned second pair is placed adjacent to it. In contrast,
The pairs of signal-conducting switched contact tongues are all located within the shield area of shield plate 44. The shield 44 exists like a thin cover on the plastic housing 66 and requires little space.

FIG. 5 shows the profile of the functional plug 23, known per se, by means of a thin and partial chain line. The downwardly projecting plug-in portion 78 is surrounded by a plastic mount 79 which extends at a distance around said plug-in portion and has the shape of a rectangular ring when viewed in the plug-in direction. Arranged on its inner wall is a shield 46 which leaves a rectangular annular gap free for the plug-in portion 78 which has a contact tongue for that portion. The outline of the shield 46 is emphasized with thicker lines for clarity. As in the partial view of FIG. 6, it is bent in a generally U-shape, the U-shaped arc 82 of which is arranged partially over the shield 39 exposed there and is preferably soldered thereto. The two limbs 83 and 84 extend at a small distance over a large area, approximately parallel to the contact tongue and reach the front insert edge 85, during which plastic loading Body 79
Covers the two inner flat sides 86 and 87 of the. As shown in FIG. 5, they do not extend entirely from the inner narrow side 88 of the right hand to the opposite inner narrow side 89, but in particular just about the inner narrow side 89. A second pair of contact tongues placed in close proximity and electrically coupled to the shield 39 extend laterally to cover. Here, in addition, the second pair of contact tongues undertakes the termination of the shield instead of the shield cut out there. This simplifies the bending operation for the shield 46. In each case, what protrudes from its limbs 83, 84 towards the common central plane 92 is an annular portion 91 whose surfaces complement each other and line the narrow inner side 88. Because there is. Annular portion 93
Is a limb 83 on the insertion part 78 of the attachment area of the contact tongue,
It also protrudes from 84, where the shield mounting body is completed.

The plastic mount 79 is connected in the center plane 92 and further comprises a cable retainer 96 for the total shield 46.
Is formed by two housing shells 94 and 95 which can also be insulated and surrounded. The housing shells 94, 95 have a plurality of inwardly projecting strips or lugs that center and retain the shield 46 and bayonet 78. In particular, two lugs 97 through slots 99 in the limbs 83, 84 and
Equipped with 98.

As shown in FIG. 6, the shields 44 and 46 of the functional outlet 18 and the functional plug 23 engage a lamella 77 that acts as a resilient backlash compensation like socket and plug.

[Brief description of drawings]

FIG. 1 is a schematic diagram of an electric circuit having a shield of the present invention.

FIG. 2 is a partial cross-sectional view of the circuit board of the present invention.

FIG. 3 is a side view of the recessed junction box of the present invention with certain portions shown in diagrammatic form only.

FIG. 4 is a perspective view of a functional outlet having a shield plate in a disassembled state before mounting.

FIG. 5 is a side view of the functional plug of the present invention with half of the upper housing removed.

FIG. 6 is a part immediately before being inserted, which corresponds to the part of the surface 6r-6r in FIG. 5 on the right side of the center plane and the surface 6l-l in FIG. 5;
FIG. 5 is a cross-sectional view of the socket and the plug on the left side corresponding to the part of FIG.

[Explanation of symbols]

11,13 ... Data busbar, 12,14,31 ... BNC plug, 15 ... Connecting box, 16,17 ... BNC socket, 18,19 ... BNC
Outlet, 21,22,25,26… Contact tongue, 23… Functional plug, 24,78… Inset part, 27,28… Signal line, 29,3
4, 37 ... Central control pin, 32 ... Connection cable, 33 ... Processing device, 35 ... Central contact tube, 36 ... Central contact sleeve, 38, 39 ...
Shield, 41 ... Conductor surface, 43 ... Conductor band, 44, 45, 46 ... Shielding plate, 47 ... Circuit board, 48, 51, 53, 67, 68, 69, 71, 86, 87, 88, 89
... side surface, 49 ... base substrate, 52 ... insulating support, 54, 55 ... penetrating surface coating, 56 ... base portion, 57 ... cap portion,
58 ... Opening, 59 ... Coupling base, 60,66 ... Housing, 61
… Mounting ring, 62… Bearing wall frame, 63… Coating plate, 64… Coating, 72,73,74,83,84… Legs, 75… Lub, 76,97,98…
Lug, 77 ... Lamella, 79 ... Wearing body, 82 ... Bow, 85 ... Insert edge, 91, 93 ... Angled part, 92 ... Center plane, 94,
95… Housing shell, 99… Slot.

Claims (13)

[Claims] 1. A plastic housing, a circuit board,
2 BNC sockets and plastic sockets
At least two switching contact tongues arranged in pairs on opposite inner sides of the housing and contacting each other in an electrically conductive manner when corresponding functional plugs are not inserted between them Directly via at least one functional outlet, the central contact sleeve of the BNC socket being in contact with each other of the first pair of switching contact tongues and the corresponding conductor strips of the circuit board Electrically connected to the first flat side surface of the circuit board, and on the second flat side surface parallel to the first flat side surface at a certain distance from the first flat side surface over the large area. A first conductor surface overlying the BNC socket and electrically conductively coupled to the shield terminal of the BNC socket and to the second pair of switching contact tongues of the contact tongue. network Circuit board (4 having At a connecting box for forming the connection device, a conductor band (43) for
9) over the first flat side surface (48), at a certain distance from the first flat side surface (48), and on the third flat side surface (53) parallel to it, large An insulating layer (52) covering the conductor band over the region and having a second conductor surface (42) electrically connected to the first conductor surface (41); At least three outer surfaces (67, 68, 68) of the plastic housing (66) of the functional outlet (18), in which a shield (44) electrically connected to the (42) projects substantially at right angles to the circuit board. 69) A connection box characterized by being attached to. 2. The circuit board (47) is constructed as a multi-layer board, the two outer layers being first and second conductor surfaces (41, 42).
And the central layer forms a conductor band (43). 3. A plastic housing (6) in which a shield (44) is bent in a generally U-shape on two parallel flat sides (67, 68) and aligned at right angles thereto.
When reaching the narrow side surface (69) of 6), the shield plate (44)
A junction box according to claim 1, characterized in that the shielding plate has a plurality of soldering lugs (76) integrally formed and soldered to the conductor surfaces (41, 42). 4. The narrow side (69) of the plastic housing (66) surrounded by the shield (44) is immediately adjacent to the first pair of switching contacts (21, 22). The connection box according to claim 3, wherein: 5. A functional plug (23) in which the shielding plate (44) is integrally formed and has a plurality of lamellas (77) elastically protruding from the plastic housing (66).
The connection box according to claim 1, wherein the connection box contacts the inner wall of the shielding sheath (46). 6. A pair of two adjacent pairs of functional outlets (18) forming a side-by-side connection with a BNC socket (16, 17) and adjoining a narrow side (69) surrounded by a shield (44). A second pair of contact tongues having a switching contact tongue for contacting the shield terminal is a cut-out narrow side (31) of the shield plate (44) of the plastic housing (66).
The connection box according to claim 4, wherein the connection box is adjacent to the connection box. 7. The connection box has two functional outlets (18, 19), the switching contact tongues (21, 22) of which are electrically connected in series, each functional outlet being a shield plate ( Connection box according to claim 1, characterized in that it is surrounded separately by 44). 8. The plastic housing (60) comprises two
Characterized in that the circuit board (47) is enclosed together with a functional outlet (18) which is configured to be divided into two parts, mounted on the circuit board (47) and surrounded by a shield plate (44). The connection box according to claim 1. 9. A BNC plug at one end of the connecting cable and a functional plug at the other end of which has at least two contact tongues arranged on opposite outer sides of the plug-in part. And in each case the signal line is connected to the two contact tongues of the first pair of contact tongues, the signal lines being insulated and shielded from each other up to the BNC plug to the contact pin in the middle. 9. A junction box, the signal line shield of which is electrically connected to the second pair of contact tongues of the contact tongue, the connection box, in particular 1 to 8.
A functional plug (23) in a connection cable for connecting a data processing device to the connection box according to any one of (1) to (23).
The insertion part (78) of the inner wall leaves the annular gap free with respect to the insertion part (78), and for that part a shield plate (46) which is spaced from the insertion part (78) by a certain distance. Surrounded by an enclosing plastic mount (79) and placed over at least a first pair (25, 26) of contact tongues and electrically connected to the shield (39) of the signal line (27, 28). A connecting cable, which is connected so as to be electrically conductive. 10. A shield (46) aligned with two opposing inner flat sides (86, 87) at a right angle to the inner narrow side (8) of the plastic mount (79).
8. The inner narrow side (88) holding 8) and lined by a shield is adjacent to the first pair of contact tongues (25, 26). Connecting cable. 11. A contact tongue in which a functional plug (23) is connected in parallel in each case to a signal line (27, 28) and adjoins an inner narrow side (88) lined by a shield (46). Another pair of contact tongues having two adjacent pairs of strips, which come into contact with the shield (39), is cut out from the shield and is a narrow side inside the plastic fitting (79) ( 89. The connection cable according to claim 10, which is adjacent to 89). 12. The shield plate (46) is bent into a substantially U shape, and the U-shaped portion (82) is at least partially over the exposed shield (39) of the signal lines (27, 28). The two limbs (83, 84) of U are approximately parallel to each other and extend at a certain distance in the middle of extending over and in contact with it and covering the two inner flat sides (86, 87). Place it from the contact tongue to reach the front insert edge (85) and in each case the protrusion from the two limbs (83, 84) towards the common center plane (22)
Connection cable according to claim 10, characterized in that its surfaces are angled parts (91) which complement one another and line the narrow inner side (88) of the plastic fitting (79). . 13. A plastic mount (79) is connected in the center plane (92) and can also insulate and surround all shields (46) comprising cable holders (96). Coupling cable according to claim 12, characterized in that it is formed by two housing shells (94, 95) and that the plastic mounting body (79) has a rectangular outer contour when viewed from the insertion side.