SU1703739A1 - Washing machine - Google Patents

Abstract

The invention relates to household appliances, namely, to washing machines, and allows for an increase in operating safety and to intensify the washing process. The washing machine contains a vertical tank, in the lower part of which an activator is located that performs axial oscillatory movements from an electromagnetic drive. The windings of the electromagnet are located outside the tank with the coverage of its cylindrical surface at the level of the location of the activator, which in this case is the core of the electromagnet. The activator consists of a magnetically conductive hollow cylinder and an inner platform with multidirectional conical holes, which, when oscillating in its movement, makes it possible to create multidirectional jets forming a closed flow in the volume of the working fluid, the intensity of which depends on the oscillation amplitude of the core and the size of the conical holes. Performing the core in the form of a hollow cylinder allows increasing the amplitude of its oscillations by reducing its mass. 3 il. J

Description

The invention relates to household appliances, in particular to washing machines.

The aim of the invention is to increase the safety of operation and the intensification of the washing process.

FIG. 1 shows a schematic representation of a washing machine; figure 2 - activator; FIG. 3 shows the connection circuit of the electromagnet windings.

The washing machine contains verti. a ball tank with washing liquid and a disk activator 2, transversely placed in its lower part with the possibility of axial oscillatory movement from an electromagnetic actuator, windings 3, 4 of which are located outside the tank with its cylindrical surface covering at the level of the location of the activator 2. The activator consists of a magnetic conductive hollow cylinder 5 with an internal platform 6, in which rzznonpravlennye tapered holes 7 are made. The circuit for turning on the windings of the electromagnet contains diodes 8, 9 of alternate feeding of the windings 3. 4, shunting The diodes are 10.11 and the switch 12. On the windings 3, 4, the supply voltage with a frequency of 50 Hz is alternately connected. The alternating voltage supply to each winding of the electromagnet is provided by the sequential switching on B of the circuit of these windings, respectively, of the forward and reverse diodes 8, 9. When voltage is applied to the winding 3, the activator is drawn inside the winding and takes a position that is symmetrically magnetic relative to winding 3. switching off the winding 3 and turning on the winding 4, the activator is drawn inside the winding 4. Thus, when

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alternately switching windings on and off, the activator performs axial oscillations with a frequency of 50 Hz. The alternating mechanoacoustic oscillations of the core propagate in the working solution over the entire volume of the vertical tank, thus achieving a washing effect.

The activator anchor 2 consists of a magnetically conductive hollow cylinder 5 and an inner platform 6. When the platform moves upwards due to the incompressibility of the working fluid and various hydraulic resistances of the tapered holes 7, downward jets arise, created by the holes located in the center of the platform. In the reverse movement of the platform, jets arise upward, created by conical holes located along the edges of the platform.

Thus, when the activator oscillates, a circulating flow of the working fluid from the walls of the vertical tank to its center is formed, which contributes to an increase in the quality of washing without twisting the laundry.

The network voltage is applied to the switch 12 and through the diodes 8. 9 - respectively, to the windings 3 and 4 of the electromagnetic vibrator. Switch 12 with a frequency of 0.5–5.0 Hz, equal to the natural frequency of the oscillatory system, an activator — working fluid — underwear, supplies voltage to the windings of an electromagnetic vibrator. The activator starts oscillating movements with a frequency of 50 Hz when voltage is applied to the windings, and at the first moment of switching on the switch the activator experiences maximum acceleration, which is accompanied by more intensive jet formation (hydraulic shock), which makes it possible to intensify the washing process.

The arrangement of the electromagnetic vibrator windings outside the tank along its perimeter completely eliminates the possibility of direct contact between the process solution and the drive windings, which increases the safety of operation. Placing the activator in the lower part of the tank makes it possible to effectively use both half-periods of its displacement relative to the plane of symmetry of the windings, which makes it possible to intensify the washing process.

Regulation of the low frequency of the switch in the frequency range equal to or close to the natural frequency of the oscillatory system, activator - working fluid - underwear, ensures the operation of the electromagnetic vibrator in the resonant or close to it modes, which contributes to reducing energy consumption.

Claims (1)

Invention Formula A washing machine containing a vertical tank with washing liquid and a disk activator transversely placed in its lower part with the possibility of axial oscillatory movement from an electromagnetic drive, characterized in that, in order to increase operational safety and intensify the washing process, the electromagnet windings are located outside the tank with its cylindrical surface at the level of the activator, while the latter consists of a hollow-conductive hollow cylinder with an internal platform in which Yeni multidirectional conical holes. four Fcg.1 6 x- - -A / 2 / 7 Sh : At v: