SU587443A1 - Programme timer - Google Patents

Description

(54) TIME PROGRAM

The invention relates to instrument engineering, in particular, to software timers, which provide automatic switching of controlled circuits by annual and daily programs, and can be most effectively used in the watch industry.

Software time relays are known that contain a clock drive, a program disk with pins, and contact groups controlled by a program disk through a drive and cam fl.

The closest to the described invention to the technical essence is a software turn-around time, containing a software device, a clock drive, two levers, and the possibility of adjusting their yi-. position on an axis which is engaged with one of the watch drive axes, and. two cams interacting with normally open contact groups.

(A contingent of such software time relays is the complexity of the design of the transmission mechanism to the contact contact group, as well as the presence of intermediate links (asterisks, kulaks) that negatively affect the reliability of the relay as a whole.

The purpose of the invention is to simplify the design, increase the reliability and accuracy of the program relay.

For this, the cams are rigidly fastened; on the free ends of the levers and in each contact group containing two contact plates, the ends of the latter lie at different points of the cam path, in each contact group the end of the contact plate working to open the circuit is located in the direction of rotation of the lever and the ends plate, working on the circuit closure.

FIG. 1 schematically shows a software time relay; in fig. 2 - two consecutive points of cam interaction with one of the contact groups.

Claims (2)

On axis 1, which is in engagement with one of the axes of the clock actuator 2, are fixed levers 3 and 4, on the free ends of which the cams 5 and 6 are rigidly seated (Fig. 1). On the board in the drawings (not shown), two normally open contact groups 7 and 8 are fixed, which are located respectively on the motion paths of the cams 5 and 6 and are connected to a memory device, such as a polarized relay 9. Each of the groups 7 and 8 has one a pair of contact plates, respectively, 1O and 11 and 12 and 13, Contact plates 10 and 12, which operate to open the controlled circuit, are connected to the pins 14 and 15 of the windings 16 and 17 of the polarized relay 9, respectively. The free ends of these plates are located (in the direction of rotation levers 3 and 4, which is shown by the arrow) in front of the free ends of the contact plates 11 and 13, which work on the short circuit and are connected to the negative side of the power source 18, - The positive pole of the source 18 is connected to the terminals 19 and 2Q of the DC6 and 1X. On axis 21, K1, which is axially connected to axis 1, coaxial with it, a software device 22 is installed, designed to ensure, when the axis 21 rotates, an automatic, stepless angle change between levers 3 and 4 in the range from 0 to 180, i.e. changing the time, for example, switching on and off the light depending on the time of year and the latitudinal band. Software time relay works as follows. Axis 1 and levers 3 and 4 planted on it make one .. turn per day. When moving a lever, for example, lever 3, opposite the clock hand, cam 5, approach the contact group 7, lifts the free ends of the plates 10 and 11 along its outer generatrix (Fig. 2, left). Upon further movement - the lever 3 at a certain t moment, the end of the plate 11 under the action of elastic forces slides along the rear bevel of the cam 5: the contacts of group 7 are closed (Fig. 2, right). The duration of the closed state of the contacts depends on the distance between the clamp plates 10 and 11 on the outer generatrix of cam 5, the angular velocity of the lever 3 and the radius to which cam 5 is from the center of the arm vrach 3, which allows you to replace the time of a closed contact so that it is enough to trigger the half-fixed relay 9. So, when the contacts of group 7 close, the winding 17 of the polarized relay 9 through pins 15 and 2O turns out to be connected to source 18. The excited relay 9 starts to perform its function iju zapominakitsego device: a controllable circuit connects and supports it on after opening of the contact group 7, with soskalzyvaniikontsa plate 10 with a cam 5, before entering a new program command signal from the device, i.e., until lever 4 approaches contact group 8. The process is repeated, but with the opposite effect, the control circuit is disconnected. The use of time for cams interacting with contact groups mounted directly on the levers, i.e. without an intermediate link, the asterisks, as well as the presence of only one pair of contact plates in each contact j yjine, lead to a simplification of the design, an increase in the reliability and accuracy of the time device. 1. Program timer, which contains a software device, a clock drive, two levers with the ability to regulate & their angular position on the axis, which is in engagement with one of the axes of the clock drive, and two cams, interacting with a normal open contact groups, characterized in that, in order to simplify the design, increase the reliability and accuracy of the program relay, the cams are rigidly fixed on the free ends of the snags and in each contact group containing two contact Lastin, the latter ends lie in different points of the trajectory of movement of the cam. . / V ...; 2. The program relay of time according to claim 1, of which is that in each contact group the end of the contact plate, working. on . - opening of the circuit, located in the direction of the lever in front of the plate end, working to close the circuit Sources of information taken into account in the examination: 1. Programmable time relay model 2РВМ, manufactured by Chronotron. 2. The author's certificate number 344524, cl. H 01 And 43/10, 1970. / J / Exit eleven / f ten P 7