SU1731882A1 - Washing machine tumbler reverser - Google Patents

Abstract

SUMMARY OF THE INVENTION: The device contains two low-pass filters (2.7), three elements 2I-NOT 3, 4, 13, two elements ZINE 5, 10, two elements NOT 6, 9, switch 8, unit 12 of rotation time, element EXCLUSIVE OR t4.1 Il.

Description

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The invention relates to household appliances and can be used to control washing machines.

Closest to the present invention is a drum reverser of a washing machine, containing a time rotation controller, made in the form of an electric motor with a gearbox, on whose axis a cam is mounted, and two rotation direction switches, made in the form of push-button switches.

The disadvantage of the reverser is relatively low reliability due to the use of mechanical elements, relatively large power consumption due to the use of an electric motor, and relatively narrow functionality, since v provides only one reversal mode, i.e. one fixed value of spins and pauses.

The purpose of the invention is to increase reliability, reduce power consumption and expand functionality.

The goal is achieved in that the device containing the time rotation adjuster and the switch is connected in series with the first low-pass filter, whose input is the input of the reverse lock signal, the first element 2I-NOT, the second element 2I-NO and the first element ZI-NOT , the output of which is the first output of the drum reverser of the washing machine, connected in series the first element NOT, the input of which is connected to the output of the first element 2I-NOT, and the second low-pass filter, the output of which is connected to in installation house in a switch, made in the form of a counter, are connected in series the second element, the input of which is connected to the second input of the first element ZI-NOT and the output of the switch, and the second element of the reference information, the second input of which is connected to the first input of the first element of the ZI -NON, the third input is connected to the third input of the first ZI element and is the Start-Stop signal input of the drum reverser of the washing machine, and the output is the second output of the drum reverser of the washing machine, connected in series 2I-NOT, the first and second inputs of which are connected respectively to the first and second outputs of the rotational time adjuster, made in the form of a counter, and the EXCLUSIVE OR element, the second input of which is the signal of the reverse mode of the washing machine drum, and the output connected to the second input of the second element 2I-NOT; the rotational time master input is the input of the drum reversal timers signal of the washing machine, the output of the third element 2I-NOT is connected to the information input of the switch, and the output the second member is coupled to the second input of the first NOR element 2I.

The drawing shows the electrical structure of the reverser.

The drum inverter of the washing machine contains a reverse-interlock input 1 of the reverse blocking signal, the first low-pass filter 2, the first element 2И-НЕ 3, the second element 2И-НЕ 4 and the first element ЗИ-НЕ 5 connected in series by the first element 6, the input of which is connected to the output of the first element 2I-NOT 3, the second low-pass filter 7, the switch 8, made in the form of a counter, the second element NOT 9 and the second element ZI-NOT 10. series-connected input 11 of the timestamp signal, the unit 12 of the rotation time, made in the formthe third element 2I-NOT 13 and the element EXCLUSIVE OR 14, the other input of which is the input 15 of the mode signal, and the output is connected to the second input of the second element 2I-NO 4, the input 16 of the Start-Stop signal, the first 17 and the second 18 outputs reverser.

Reverser works as follows.

In the initial state, input 11 is supplied with a timestamp signal in the form of a clock frequency of 1 Hz, input 15 is given either a logical unit signal (the first mode of operation at which the drum rotates for 12 seconds and a pause for 3 seconds), or logical zero (rotation of 3 s, and a pause of 12 s), to inputs 1 and 16 signals of logical zero are given.

At the beginning of the operation, input 16 is given a Start signal - a signal of a logical unit. The rotational time adjuster 12, made in the form of a cyclic counter, counts the number of pulses arriving at its input. Its third and fourth bits are connected to the input of the third element 2I-NOT 13. As long as at least one of the outputs of the third and fourth bits of the counter 12 a logic zero level is observed, the output of the third element 2I-HE 13 observes a logical signal units, which is fed to the input of the EXCLUSIVE OR 14 element. In the first mode, a signal with the level of a logical one from the input is also sent to its other input, and as a result a logical zero signal is observed at its output. Therefore, unconditionally, at the output of the second element 2I-NO 4, the level of the logical unit is observed, which is fed to the inputs of the first 5 and second 10 elements ZI-N E. At the same time, the counter 8 is in the zero state. Therefore, from the output of its first bit, the signal of zero logic level is fed to the input of the first element ZI-NOT 5, and after inverting in the second element HE 9 the signal of a single logical level is fed to the input of the second element ZI-NE 10. Therefore, in the initial period when the device is turned on the signal of the logical unit is observed at the first output 17, and the signal of the logical zero at the second output 18. The signals from the second output 18 are fed to the motor starter relay in the forward direction, and from the first output 17 - in the opposite direction. Therefore, code 10 on the first and second outputs 17 and 18 means the rotation of the drum motor in the forward direction.

When counting pulses with counter 15 continues after 12s after switching on, both outputs (outputs of the third and fourth bits) generate signals with the level of a logical unit, which causes the signal to change within 3 seconds from the level of the logical unit to the level of logical zero at the output of the third element 2I -NE 13. As a result, code 11 is generated at the first and second outputs 17 and 18, which means turning off both relay starters and stopping the rotation of the drum.

After a pause in 3 seconds, the counter 15 is nullified when it moves and at the output of the third element 2И-NOT, the signal drops from a logic one level to a logic zero level, which causes a change in the output state of the first discharge of counter 8 to the opposite (on the logic unit level ). Therefore, code 01 is generated at the first and second outputs 17 and 18, which means the rotation of the drum in the opposite direction. The described processes are repeated, which leads alternately through a pause of 3 with a change in the rotation of the drum.

If input 15 is given a signal with a logic zero level, then the EXCLUSIVE OR 14 element does not invert the signal that arrives at its other input from the output of the third element 2I-NOT, therefore, in accordance with the described operation logic, the second mode of operation occurs, at which alternately with a pause of 12 seconds, the drum rotates in the forward and reverse directions for 3 seconds.

In addition, when the drum goes into the spin mode (the rotation mode with high speed in the forward direction, which is provided by other actuators), a signal with the level of a logical unit is input to input 1 through 5. In this case, if at this moment at the output of the second element there is no signal with the level of a logical unit, which means the rotation of the drum in the forward direction,

0 then the output of the first element 2I-NOT will change the signal of the logical unit to a logical zero and as a result, the counter 8 will be set to the zero state, which will be maintained during the whole

5 time intervals of a logical unit signal input to input 1. The same logical zero signal from the output of the first element 2И-НЕ 3 is also fed to the input of the second element 2И-НЕ 4, therefore, at its output, without signal, a signal with the level of a logical unit is set, which is the turn means the installation of code 10 on the first and second outputs 17 and 18. When replacing the signal at input 1 to the logic zero level, the device switches to the previous operation mode.

Thus, due to the introduction of new elements and connections, the reliability of the device is significantly increased, since mechanical elements are excluded. Significantly reduced power consumption. So the prototype engine consumes about 10 watts of power, and the proposed device is about 0.1 watts. Costs

5, energy consumption is reduced by a factor of 100.

In addition, a simple signal input 15 changes the mode of operation, and the connection of the inputs of the third element 2I-NOT

0 13 to other bits of the counter 15 leads to a change in the harmful mode intervals. This greatly expands the functionality of the device.

Claims (1)

Invention Formula 5 The drum reverser of the washing machine, comprising: a drum start signal sensor, a rotation time setting device, a switch and a first and second speed and rotation relay of the drum, 0 characterized in that, in order to increase reliability and reduce power consumption, a mode setting control, a reverse lock setting signal setting device, the first and second low-pass filters, the first, second and third elements 2I — NOT, the first and second elements ZI- NOT, the first and second elements are NOT, the EXCLUSIVE OR element, and the input of the first low-pass filter is connected to the output of the setter of the reverse blocking signal, and the output is connected to the first input of the first element 2I-NOT, the output of which is connected through the first element in series and the second low-pass filter connected to the installation input to the 0th switch and also connected to the first input of the second element 2Y-NOT, the outputs of the timer are connected to the inputs of the third element 2I-NOT, the output of which is connected to the information input of the switch and to the first input of the element EXCLUSIVE OR, the second input to expensively connected to the output of the mode dial, and the output is connected to the second input of the second element 2I — NOT, the first input of the first element ZI — NO is associated respectively with the output of the switch and with the input of the second element NO, the output of which is connected to the second input of the first element 2I-NOT and the first input of the second element ZI-NOT, the output of the second element 2I-NOT is connected with the second inputs of the first and second element ZI-NO, the third input of the first element ZINE connected to the third input of the second element ZI-NOT and with the output of the drum start signal sensor, and the outputs of the first and second elements ZI-NE are electrically connected to the first and second relays of the speed and direction of rotation of the drum, respectively.