DE3212128A1 - Selector switch - Google Patents

Abstract

A selector switch for electrical connections consisting of a plurality of identical connections consists essentially of a cylindrical body in which switching elements allocated to the connections are arranged concentrically, and of an operating element which passes through the body axially and, in the operating position, operates the respective switching elements.

Description

Selection holder

The invention relates to a selection switch for electrical Connections from a plurality of similar connections.

Such a switch is used in motor vehicles, for example, to via the connections established in each case in the connected central units, such as microprocessors and residual value memories (ROM), predefined, vehicle-specific Activate programs or memory contents.

Such switches are also known as coding plugs known.

With the help of the present invention is primarily a constructive simple construction of such a switch can be achieved This is achieved by the Combination of the following features achieved: 1. A body in which the connections associated Sehalt members are arranged and 2. an axially penetrating the body Actuator that actuates the respective switching elements in the effective action.

In addition to structural simplicity, such a switch is distinguished due to the small construction volume and the possibility of within this construction volume accommodate a large number of such switching elements and thus accordingly select many connections with the aid of the single actuator.

An Aus: cihl switch in the form of a rotary switch is known, in which a rotatable part is resiliently mounted and movable parallel to its axis of rotation Contact pins actuated. The contact pins are at different distances from the axis of rotation and are arranged by part-circular, concentric to the axis of rotation extending projections operated. This switch is particularly complex and has only a few options in relation to its size.

Further improvements and expanded application possibilities of the Switch can be achieved by further features, which are shown in detail in the drawing are shown and described accordingly. The assignment is particularly important the switching element contacts to connections in a printed circuit board of importance, the If the circuit board structure is identical, the selection of the "correct" connections is only required made possible with the aid of the individual actuator.

An embodiment of the invention is shown in the drawing and described below. 1 shows a longitudinal section through a Switch according to the invention, FIG. 2 shows a section along the line II-II in FIG. 1 and FIG. 3 is a plan view of the switch connected to a circuit board.

A selection switch 1 essentially consists of a body 2 and one of these axially penetrating actuation member 3, which is in an opening 4 of the body 2 runs. The actuating member 3 is held in the body 2 so that it cannot rotate.

Two lateral approaches running in the longitudinal direction are used for this purpose 5 of the actuator 3 of different widths, which are in corresponding grooves 5 'of the body 2 run.

within the body 2 there are several concentrically arranged Similar switching elements 6, each with a fixed contact 7 and one movable contact 7 '. The contacts 7 'protrude into the opening 4 approximately to the extent that that when the actuating member 3 is pushed in, it is in its rest position approximately at this issue.

The actuating member 3 can comprise one or more of the contacts 7 ' its rest position to make contact press the assigned contact 7 and thus over the then closed switching elements of FIG. 6 correspond to electrical connections manufacture. For this purpose, the actuator 3 is within the body 2 with longitudinal Provided projections 8, which press the .T.ontal-: te 7 'on the associated contact 7. In rig. 2 this is shown for the switching element 6 '.

The electrical connection established in this way triggers of switching functions not described in detail or for the selection of individual, with the help of switch 1 selected programs of a microprocessor or parts of a data store is used. For this purpose, contacts 7 and 7V are the switching elements 6 or 6 'outwards. You are in a circuit board 10 contact host, the arranged between the body 2 and the handle-like end 3 'of the actuating member 3 is. About the circuit board, which is shown in Fig. 3 in detail, are the Contacts 7 on a microprocessor 11 or a fixed store of value (ROM) or the like. The contacts 7 'are connected to one another and placed on a uniform potential, in the present case mass potential. Everyone the contacts 7 are connected to an associated input 12 to 23 of the microprocessor 11 tied together. In the present case, the input 19 of the microprocessor is via the switching element 6 ' 11 placed on mass potential. The other inputs 12 to 18 and 20 to 23, however are not used in terms of potential. The microprocessor performs according to this potential Allocation of the associated program sequence.

As can be seen from the drawing, the switch enables a Select a variety of electrical connections. Each of these connections is associated with a switching element within the body 2, as it may be through appropriate Training of the actuator 3 can be closed. It should be emphasized that Measured against the large number of switching options, the switch has a small volume. Furthermore, its high mechanical stability and structural simplicity are remarkable. The respective circuit connections are only made using a corresponding individualized actuating link with otherwise unchanged structure of the body 2 and the circuit board 10 made. Mention should also be made of the possibility the end face 3 "of the actuator 3 with a corresponding marking for Characterization of the respective actuator 3 and thus of the entire switch to provide. Finally, it should be mentioned that the actuator link j ng link 3 Can be locked in the body 2, for this purpose fe, learning parts 24 de actuator 3, which are supported against the circuit board 10 at the end of the opening 4.

Claims (7)

Claims: 1. Selection switch for electrical connections from a plurality of similar compounds, characterized by the combination the following features: A body (2) in which the switching elements assigned to the connections (6) are arranged and an actuating member axially penetrating the body (2) (3), which actuates the respective switching elements (6 ') in the effective action. 2. Switch according to claim 1, characterized in that the actuating member (3) is retained in the body (2) so that it cannot rotate. 3. Switch according to claim 1 or 2, characterized in that the Actuating member (3) can be locked in the effective position. 4. container according to one of claims 1 to 3, characterized in that there? the switching elements (6) have two contacts (7 and 7 '), one of which (7') is movable and in the space set by the actuating element (3) (opening 4) protrudes. 5. Switch according to one of claims 1 to 4, characterized in that that the actuating member (3) for the switching member to be operated (65 with a projection (8) is provided. 6. Switch according to claim 4 or 5, characterized in that the Contacts (7 and 7 ') of the switching elements (6) are connected to terminals which are on a common printed circuit board (10) and via this with the inputs (12 to 23) of the units to be switched (microprocessor 11) connected or with defined Potentials are proven. 7. Switch according to one of claims 1 to 6, characterized in that that the actuating member (3) is provided with a marking on its end face (3 ") is.