DE7147729U - Electrical push-button switch inserted in an insulating material housing - Google Patents

Description

Electrical inserted in an insulating housing Push button switch

The invention relates to an electrical ien in an insulating material housing egg: set push button switch, especially fr.r on electronic control unit, with arranged on an insulating base stationary contacts and with a tiltably mounted Y / ipp contact member that interacts with the stationary contacts, which by a one-piece with a pressure actuator and the tappet, which is made of the same material, is operated and alternately switched to two stable switching positions. wherein the pressure actuator with the plunger of a spring-elastic Return spring is affected.

An electrical push button switch is known (OS 1 512 511), which can be tilted with several in a pot-shaped insulating base arranged contact members is provided, and where the tiltable contact members are each operated by a plunger which is formed in one piece with the push button. The tiltable contact member is connected to a toggle spring, which is used to achieve the required contact pressure and the switching module is used. This push button switch is designed in particular to actuate a plurality of tiltable contact members j.

There are also push button switches that require only a Template ^"1 tkontaktglied, BZV to a unipolar one, off to.

■ cause. Such a push-button switch is, for example, assembled with a potentiometer and is used to switch on and off "-

! switching of a brightness control device (OS 1 928 270). This built-in unit of a potentiometer with push-button switch iüt housed in a special insulating housing and on

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Mp-IIr. 092/71

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17th December 1971

arranged on a circuit board, which also the rest, in particular the electronic components of the brightness control device (also called Dip.iiner) carries. The circuit board is in turn with its parts in a special insulating housing arranged. ,

The object of the invention is to provide a push-button switch; in particular for an electronic control unit, which is characterized by a smaller number of individual parts

and its assembly is also easy to handle. Above all, the number of housings for the potentiometer should be and for the push button switch on the one hand and for the brightness control device on the other hand reduced to a smaller number will.

With an electrical installation device such as switches, buttons and the like, you already have soft with screwless connection terminals are provided, a simplification made in that the screwless clamp actuating push button member with your from a resilient, especially thermo

plastic insulating material, existing housing formed in one piece Has. Here, however, the pressure actuator is not used to operate a switch, but to release one Clamp connection by means of spring clamps (OS 1 261 921).

To achieve the object, the invention provides that, in the case of the push-button switch mentioned at the beginning, the push-button actuator with the housing made of a resilient material; in particular that of the control unit, which is known per se V / else is formed in one piece and made of the same material.

The invention further provides that the housing in per se well-known Y / ei'se besides the parts of the push-button switch too still parts of the electronic control device, in particular a brightness control or speed control device, receives, wherein

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Mp no. 892/71

17th December 1971

the orstfeston and tiltable contacts (V / ipp contact member) with the bearing contact directly on which the electronic parts; load-bearing circuit board are attached. Finally, according to of the invention, the Drucltbetivatedoglicd of dsm control handle of the .electronic control unit, especially its potentiometer ^ influences which actuates the potentiometer through radial rotation and the pressure actuator through axial pressure, wherein the control handle can be operated axially against the pressure of a restoring force.

The object of the invention is in one embodiment shown in the drawing. *

Fig. 1 shows a section through a brightness control device with the new push-button switch.

Fig. 2 shows a Tsilschnitt solely by the push-button switch according to the section line I3> I of Figure _{s 1!;}

Fig. 3 shows a partial section through the push button switch with a differently designed spring.

The push button switch consists of the tiltable switch contact member 1, which carries the two movable contacts 2 and 3. It is arranged tiltably on a stationary bearing contact 4, wherein the bearing contact in the circuit board 5 of an electronic control device »in particular brightness ^ control device 6, is attached. The stationary mating contacts 7 and 8 are also directly on the circuit board 5, e.g. by means of rivets attached. The push button 9 is made in one piece with the housing 10 of the control device, namely made of the same material, wherein the two housing and push button arranged hinges 11 enables a pressure actuation in the direction of the arrow, i.e. in the direction of the toggle contact member 1. The transfer the pressure on the toggle contact member is made by a plunger 12, which is also the same material as the push button is molded. The housing and push button are made of a resilient material, in particular a thermoplastic which the elastic movement of the push button - 4 -

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Mp-Mr. 892/71

December 17, 1971

enables. The current switching movement, g; of the toggle contact member 1 creates a spring force, e.g. a coil spring 13 »which is arranged between the push button and the toggle contact member 1. At the same time, this spring force also serves as a Restoring force for the push button 9 · It is of course possible that such a switch without an additional restoring force is sufficient, but in this case the housing material would have to have a special spring-elastic spring property.

Another configuration of a restoring force is shown in FIG. 3. In this embodiment, a leaf spring 15 arranged in the plunger 14 is provided as a restoring device, which is supported on the one hand in the push button 16 and on the other hand in the tiltable contact member 17.

As Fig. 1 shows, are in the housing 10, which with the pressure; button 9 forms a part, both the potentiometer 18 and electronic parts 19 and 20 housed. The potentiometer 18 is operated by the adjusting handle 21, namely by a rotary movement. Before the control unit is operated by turning is, it is switched on at the same time by pressing the handle 21, wherein a protruding edge 22 of the handle the pressure on the push button 9 transmits. A restoring force of a helical coil spring 23 brings the control handle into its " Starting position back automatically. Switching off is carried out in the same way by pressing the control handle 21 .;

The new design reduces the number of individual parts by around 2/3, with 3 housing parts and the separate Snap fastener part and other individual parts are omitted. Since the It is easier to mount switch contact parts on a larger circuit board than on a potentiometer base Extent, the assembly is easier and therefore simpler, so that the potentiometer switch is not particularly needs to be assembled.

Pat 4 FI (1069 EOOO / cA)

71 * 772924.1.73

Claims (3)

Protection claims 1.) Electrical push-button switch inserted in an insulating material housing, in particular for an electronic control device, with stationary contacts arranged on an insulating base and with a tiltable rocker contact element which interacts with the stationary contacts and which is operated by a plunger which is integrally connected to a push-button actuation element and is made of the same material and is alternately transferred into two stable switching positions, the pressure actuator with the plunger being influenced by a resilient return spring, characterized in that the pressure actuator (9) with the housing (10) made of a resilient material, in particular that of the control device (6), in a manner known per se, in one piece and made of the same material. is trained. 2.) Electrical push button switch according to claim 1, characterized in that the housing (10 ') in a known per se Veise besides the parts of the push button switch too Accommodates parts of the electronic control device, in particular a brightness control or speed regulator device, the locally fixed (7, 8) and tiltable contacts (rocker contact member) (1) with the bearing contacts (4) directly on the printed circuit board (5) carrying the electronic parts (19, 20). 3.) Electrical push button switch according to claim 1, characterized in that the pressure actuator (9) of the \ adjusting handle (21) of the electronic control device (6) _r in particular its potentiometer (18) is influenced, which j by radial rotation of the potentiometer (18 ) and by j l $ in> pressure actuates the pressure actuator (9), whereby the j Adjusting handle (21) axially against the pressure of a restoring force; (23) is operable. PjU Γ 1