DE2165248A1 - Collective cable connection - Google Patents

Description

Patent application for collective cable connection

IXe invention relates to a collective cable connection for controlled connection from earthed consumer units to a power source.

The invention is particularly suitable for use in motor vehicles, aircraft, to be used in computer systems etc. For example with one Motor vehicle there is usually the requirement to have various pantographs, such as marker lights, headlights, parking lights, Windshields, wipers and other units should be connected to a common power source Switches usually located away from the consumer. In known arrangements leads from the switch to the individual consumer points a separate power supply cable each.

From British patent specification 1 291 557 it is known to connect consumers to a common power source by means of a blocking system which, triggered by pulses, connects the consumer to the power grid when necessary.
GB-49 / December 7, 1971 _ 2 -

209833/0640

Seat of the company: Cologne · Register court Cologne, HHB 84 · Chairman of the supervisory board: Max Lieber · Management board: John A. Banning, chairman

Dr. Klaus B. Amedlck · Hans-Adolf Barthelmeh · Waldemar Ebers · Wilhelm Indan · Alfred Langer · Hans Schaberger

Deputy: Horst Bergemann ■ Hans-Joachim Lehmann

-Z-

In other devices switches are used that are controlled by control currents operated to connect the Verbraudier to the circuit. Even though in these cases an extension of the cable network is necessary, it is nevertheless advantageous to go this way, since the dimensions of the Control lines can be much smaller than the cross-sections of the work power connections.

The aim of the invention is now to improve and simplify the known Facilities.

This goal is achieved by having all consumer units connected to one Working conductors are connected, this connection being via control units takes place, which make the connection to the working power line as soon as over provided for each consumer or each consumer group Control lines a signal reaches the relevant control unit.

According to the invention, the control conductors are on a conductor containing the work Ribbon printed on it.

The control conductor and the operating current conductor can also have connection points be provided, which penetrate both conductors and which are suitable for receiving connection units, control units, etc.

Transistors can preferably be used as control units, which are arranged directly at the connection points.

The connection is advantageously made from the operating current conductor and from the control conductors to the control units via sharp projections which penetrate the insulation when the control units are inserted into the connection points and make contact under pressure.

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The connecting units can contain bolts that form the openings of the connection points penetrate, whereby the fastening is carried out by fastening rings. This ensures that the projections penetrate securely the ladder ensured.

In particular when connecting filament lamps, the corresponding Transistor as a control element have a suitable resistor, the lies between the base and the emitter.

Further advantages and details of the invention emerge with the aid of a Embodiment shown in the figures.

Show it:

1 shows a principle of the position of a motor vehicle incorporating the invention.

Fig. 2 is a perspective view of a collective cable connection according to the invention;

3 shows a circuit arrangement according to the invention;

4 is a diagram showing the current over time, plotted for the Switching on of a filament lamp;

5 shows a cross-sectional drawing of the bus connection according to the invention, in particular showing the connection points with inserted ones Control units;

FIG. 6 is a perspective view of another embodiment of FIG

collective cable connection according to the invention. GB-49 / December 7, 1971 - 4 -

209833 / nfun

In a motor vehicle 10 is a voltage source with 11 and a control system * designated by 12. Various electrical devices 13 are connected to one another by a cable 14. This cable 14 forms the actual collective cable connection according to the invention.

The electrical devices 13 can consist of headlights, marker lights, Direction indicators, windshield wiper drive motors and the like exist. These devices are generally arranged at a distance from the voltage source 11.

The line 14 is usually arranged as a type of ring line. she consists of a relatively thick, conductive insert that serves as a working current conductor 16 and of a large number of relatively thin control conductors 17. Both the work conductor 16 and the control conductor 17 are in the finished State of the collective cable connection isolated from each other and to the outside. The insulating material is designated by 15.

The control conductors 17, which can be printed on, are spaced apart from one another arranged connection points 18. A very simple embodiment of the collective cable connection according to the invention is shown in FIG ". Here the control conductors 17 run parallel to one another and the

Junction points are arranged at regular intervals. In Fig. 2 an example is shown in which only three control conductors are used. It should be noted here, however, that in the specific application for a motor vehicle twenty to thirty control conductors can be used. Another embodiment of a control conductor according to the invention is shown in FIG. Here the arrangement is made so that the connection points are all in one line.

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»This can simplify the connection of the control units.

Each connection 19 can be provided with an opening so that on this Way, the connection of control units, as will be described below, is facilitated. It is also possible to make the corresponding holes to be attached only when the control units are used. It can be pointed out here that the connection points can be arranged so closely that practically in every area of the collective cable connection a connection is possible.

The voltage source 11 is permanently connected to the working current conductor 16 a connection 19 (Fig. 5) connected. The connection 19 is in a corresponding Connection plugged into the collective cable. A bolt 22, which has a head 20, pierces the opening in the collective cable connection. The head bears sharp protrusions that form the insulating cover

Pierce 21 and thus establish contact with the work conductor 16. An insulating bushing 23 prevents the bolt 22 from making contact with the corresponding control conductor 17 comes. Of course, there is also the possibility at this point of the control ladder around the passing through To bring bolts around. A fastening ring is attached to the bolt 22 for fastening 39 pushed, which holds the front cracks of the head 20 in contact with the working current conductor 16 under tension. The connection of the bolt

22 with the battery can then be done in a conventional manner.

This connection 19, as described above, can also be used for the connection by consumers who have to be constantly connected to the battery. Such consumers are, for example, in a motor vehicle the radio or a lamp for reading cards that has a special switch.

GB-49 / December 7, 1971 - 6 -

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Other consumers, i.e. consumers that have a switched connection to the power source need to be connected to the working current conductor by means of a Control unit 24 connected as shown in Figs. This control unit 24 is also inserted into an opening in the connection point 18. A transistor is expediently located within the control unit 24. A housing 25 of the transistor has sharp projections 26, which pierce the top cover 21 and establish electrical contact with the operating current conductor 16. This connection also has the fc advantage that heat may be generated as a result of the transmission

can be better distributed and diverted to the operating current conductor.

The control unit 24 is connected to the control conductor 17 through a fastening ring 27, which is equipped with sharp projections 28 is. The fastening ring 27 is in contact with the body 29 and thus not only establishes the electrical contact but also holds the control unit on the bus cable. The body 29 is connected to the base of the transistor, with a resistance of up to a thousand ohms in the housing 25 lies between the base and the emitter of the transistor. A bolt 30 is connected to the collector of the transistor, this bolt as fc receiving part for a cable connector 31, as shown in Fig. 2, are used

can. The control unit 24 is controlled by a current signal, the Connection of the corresponding consumer and thus the supply of electricity only takes place when the control unit is in operation.

The connection to the control units is made through connections 32, such as they are shown in FIG. These connections are designed similarly to the connection 19 for connecting the working current conductor 16 to the Battery, only with the difference that here the connection to a control conductor he follows.

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A fastening ring 37 carries sharp projections 33, these at a Pushing on a bolt 36 pierce the insulation and come into electrical contact with the control line. A head of the connector 32 is with 35 designated. Short circuits between the control line and the operating current conductor are caused by insulating bushes connected in between prevented.

A circuit diagram for a simple system according to the invention is shown in FIG. 3 shown. In this circuit diagram, similar parts have the same designations Mistake. The ground line 38 usually consists of the chassis of the motor vehicle. The electrical consumers here are filament lamps; they are labeled L 1 and L 2.

If the switches S 1 and S 2 are in the control system, i.e. in the operating unit of the motor vehicle, are switched off, prevails at the base of both transistors T 1 and T 2 have the same voltage as at the emitter, so that none of the transistors is conductive, with the result that the lamps L 1 and L 2 are switched off are. When the switch S 1 is switched on, so voltage is applied to the transistor T 1 via the line C 1, the transistor T 1 is switched on and current flows to the lamp L 1. Similarly, the lamp L 2 starts to burn when the switch S 2 is operated and the corresponding one Transistor thus receives current. The resistors R 1 and R 2 used here have a resistance of about 100 ohms.

An important property of the invention can be explained with the aid of FIG.

In the illustration according to FIG. 4, the current is shown over time, that occurs when a filament lamp is switched on. The curve I shows the normal course when switching on a power generator.

GB-49/7 December 1971 _ 8 -

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Fig. 2 shows the course of the current when using a circuit diagram according to FIG. 3. From this illustration it can be seen that the inrush current when using a circuit according to FIG. 3 is significantly less. The inrush current as shown in curve I is relatively large because the lamp is still cold. For one like that high current surge, a relatively expensive transistor would have to be used. Or a rectifier would have to be used. Will however, resistors, as denoted by R 1 and R 2 in the figures, are used, a voltage divider is thus created with the result that the P current for the base is kept relatively constant. The stream that is about

the transistor flows, can therefore only rise until the voltage over the resistance of the emitter the voltage potential of the emitter to one has raised similar value as the potential of the base. The resistance of the emitter essentially consists of the resistance of the cable connections, Connectors and from the internal resistance of the emitter.

The system according to the invention can of course be used for all purposes in which electricity has to be brought to certain consumers. For example, it is also possible to display the fuel tank in this way. It is also not necessary that the ψ switches are grouped together on one desk; rather, the switches can

be or display devices at different locations distributed in the motor vehicle _r

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Claims (7)

Claims Collective cable connection for the controlled connection of earthed Consumer units to a power source, characterized in that that all consumer units are connected to a working current conductor, this connection via control units takes place, which make the connection to the working power line as soon as over for each consumer or each consumer group provided control lines a signal reaches the relevant control unit. 2. collective cable connection according to claim 1, characterized a net that the control conductor (17) to a working current conductor (16) containing Are printed on the tape. 3. collective cable connection according to claim 1 and 2, characterized in that that control conductor (17) and working current conductor (16) are provided with connection points (18) which penetrate both conductors and which are suitable for receiving connection units, control units, etc. 4. collective cable connection according to claim 1 to 3, characterized in that that transistors are used as control units, which are arranged directly at the connection points (18). 5. collective cable connection according to claim 1 to 4, characterized in that that the connection from the working current conductor (16) and from the control conductors (17) to the control units (24) via sharp projections (26, 28) which penetrate the insulation and the contact when the control units (24) are inserted into the connection points (18) produce under pressure. GB-49 / December 7, 1971 -Z- 209833/0640 6. collective cable connection according to claim 1 to 5, characterized gckennzeich net that the connection units (bolts 22, 30, 36) contain which penetrate the openings of the connection points (28), the fastening by fastening rings (27, 39). 7. collective cable connection according to claim 1 to 6, characterized in that that especially when connecting filament lamps, the corresponding transistor as a control element has a suitable resistor has interposed between the base and emitter. GB-49 / December 7, 1971 209833/0640