DE1463288B2 - PROGRAM CONTROL UNIT FOR WASHING MACHINES - Google Patents

Claims (1)

1 2 The invention relates to a program control device for printed circuit board to move in steps. In Fig. 1 is washing machines with a mechanical switch- the circuit board is a switch disk 2, in FIG. 4 factory and transducers, through which measured variables it is a circuit board 3. The switching is electronically transmitted to the switching mechanism, factory 1 is moved by a drive motor 4, whereby a circuit board with switching tracks with conductors The sections of sliding contacts of the switching device Zeitwerk 5 can be switched on and off in such a way that the mechanism can be scanned directly. that the switching disk 2 in desired, appropriate Such a program control device as it is moved at regular time intervals. On the for example by the magazine ETZ-B, 1962, p. 627 switching disk 2 sliding contacts 6 are arranged, is known, requires relatively little space, io These sliding contacts 6 scan circuit paths that because a printed circuit board with circuit tracks is scanned in the form of a conductive printed circuit will. With the contacts closed therewith, sections 7 have. In FIG. 1 is schematic the different, respectively set Pro- are shown that transducers 9 to 12 via the gram controlled. - · '■ · ■■ Sliding contacts6 at potentials 13, 14, i.e. at The German Auslegeschrift 1051944 laid down 15 drive voltage, depending on which part of the program control direction for general use the switching disk 2 has become known in relation to the grinding dung in which circuit boards with contacts 6 has. For the transmission of the measuring electronic switching means are provided. A large structure similar to the switchgear can of course show a contactless matrix for any other known circuits related punch card control devices, which are through the German 20,
see Auslegeschrift 1 080 338 is known. Further from FIG. 1 can still be seen that By the German utility model 1785 268 depending on the position and the tension of the It is also known to have a printed circuit board both transducers and the position of the sliding contacts 6, to be used on both sides for switching tasks. then program sections 15 to 20 are switched Based on a program control device of the 25 den. These are drawn as a two-pole, it can be The type mentioned at the beginning of the invention is also about a passive or active quadrupole would be based on developing this in such a way that act without. Contactors and the like can also be used Significant increase in the space required by an Er- that, from the sliding contacts 6 Extension of the switching functions is possible. switched directly or indirectly, then that to each According to the invention, this object is achieved by switching groups belonging to the program section, achieved in that the circuit board is switched on both surfaces. B. has water inlet, heating, washing, pumping, lanes with conductive sections and, in addition, refilling, rinsing and spinning,
which carries electronic switching means. In this pro-As the F i g. 5 shows that on both sides of the switching program control device, both surfaces of the disk 2 switching tracks 8 can be arranged, ie used by the printed circuit board for switching functions. 35 below, grinders can also be used for the transmission. This means that the space requirement is further reduced compared to when the measured values are used to the switching mechanism, which the program control device knew. In Fig. 3, the circuit boards provided on the underside of the circuit board are also not provided directly on the circuit board. increase of the switching possibilities without substantial 40 In the F i g. 4 the same numbers denote the Increasing the space requirement is effected. equal parts. The rear derailleur motor 4 is used here For the implementation of the necessary relative to this, either the z. B. angeordbewegung to angle levers between the circuit board and sliding contacts Neten sliding contacts 21 from the circuit board 3 gives several options. Once the can be lifted and thus rendered inoperative, the circuit board can be designed as a revolving circuit board, by a drive via 45 or it can be pressed down so that the switching tracks 8 arranged in a straight line with a timer intermittently moved can be scanned. It is also possible that the ladder. This circuit board is then z. B. step-by-step plate as a switching plate with linear switching tracks that can be progressed step by step by transport rollers via transport rollers 22 in the direction of arrow 23 - moves out,
is designed on which sliding contacts 50 rest, the movement of which is controlled by the switching mechanism.
is cash. The invention is described below with reference to 1. program control device for washing machines Embodiments explained in more detail. It shows with a mechanical switching mechanism and measuring F i g. 1 schematically shows the circuit for a pro 55 encoder, through which measured variables electronically gram control device according to the invention with drive to be transmitted to the switching mechanism, with a motor, timer, switching disk and grinders, circuit board with switching tracks with conductive F i g. 2 enlarges a possible embodiment of a section of sliding contacts of the switching mechanism Switching disk, which at F i g. 1 can be used directly scanned, thereby identifying can, 60 net, that the circuit board (2) on both surfaces F i g. 3 a central section through the switching disk switching tracks (8) with conductive sections (7) according to FIG. 2, and also electronic switching means F i g. 4 a switching disk that moves in a straight line and carries. Fig. 5 schematically shows a switching disk, the two- 2. program control device according to claim 1, there- side has switching tracks. 65 characterized in that the circuit board (2) as In Fig. 1 and 4 is a switching mechanism 1 as a quadrilateral, drawn by a drive (4) over a period of time. It can, for example, be a gear unit with a switch disk (5) that moves intermittently clocked or electromechanical clutches that run around. 3. Program control device according to claim 1, characterized in that the circuit board (2) as of transport rollers (22) gradually shiftable switching plate (3) with rectilinear switching tracks (8) is designed on which removable sliding contacts (21) rest, their movement through the switching mechanism (1) is controllable. 1 sheet of drawings