RU1772264C - Washing machine - Google Patents

Abstract

The invention relates to household electrical appliances, in particular to household washing machines, and allows to increase the intensity of washing clothes and simplify the design of the machine. The washing machine comprises a vertical tank and an activator with a drive in the form of an electromagnetic vibrator, the windings of which are located outside the tank and are alternately powered by the mains voltage. The windings of the electromagnetic drive are located under the bottom of the tank symmetrically relative to its vertical axis, and the activator is made with an angular bend in its central part and is located on the bottom of the tank with the possibility of swinging relative to the central rib. Each edge of the activator is located above the corresponding winding of the electromagnet. The maximum washing intensity is achieved at angles between the faces of the activator lying in the range 160-170 °. With this arrangement of the windings of the electromagnetic drive, the activator alternately with opposite edges is attracted to the electromagnets with a frequency of 50 Hz, 1 s. P. f-ly, 2 ill.

Description

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

Closest to the technical essence of the invention is the design of the washing machine, comprising a vertical tank and an activator with a drive in the form of an electromagnetic vibrator, the windings of which are located outside the tank around its perimeter, alternately powered by the mains voltage. An anchor serving as an activator consists of a magnetically conducting hollow cylinder and a radiating platform having conical openings.

In the working state, the measles activator must oscillate symmetrically with respect to the transverse planes of the windings of the electromagnetic vibrator, as a result of which the washing machine is very sensitive to the weight of the laundry loaded into the tub. When a certain weight of laundry is exceeded, the amplitude of vibrations of the core activator decreases significantly. If the weight is significantly exceeded, the measles activator can leave the zone between the transverse planes of the windings of the electromagnetic vibrator, and then its oscillations will cease altogether. A decrease in the amplitude of oscillations of the core activator when loading the machine with linen reduces the intensity of the wave and hydrodynamic movement of the working solution, which leads to a decrease in the quality of washing,

The implementation of the windings of the electromagnetic drive, and hence the magnetic wire, around the periphery of the tank requires the implementation of additional protective and fasteners, which complicates the design of the machine as a whole.

The aim of the invention is to intensify the washing process and simplify the design of the machine.

H

VI y m o

This is achieved by the fact that the windings of the electromagnetic drive are located under the bottom of the tank symmetrically relative to its vertical axis, and the activator is made with an angular bend in its central part and is located on the bottom of the tank with the possibility of swinging relative to the centrifugal rib, with each activator face located above the corresponding winding of the electromagnet . The maximum washing intensity is achieved at angles between the faces of the activator lying in the range 160-170 °.

With this arrangement of the windings of the drive electromagnet, the activator is alternately drawn with opposite edges to the electromagnets at a frequency of 50 Hz.

In FIG. 1 schematically shows a spiral machine; Fig. 2 is a section A-A in Fig. 1. The washing machine comprises a vertical tank 1 with washing liquid and a flat activator 2 with through conical openings transversely placed in the lower part of the tank with the possibility of oscillatory movement from an electromagnetic drive 3.4s to two windings 5.6. located outside the tank. The windings of the electromagnetic drive are located under the bottom 7 of the tank symmetrically relative to its vertical axis, and the activator 2 is made with an angular bend in its central part and is located on the bottom of the tank with the possibility of swinging relative to the central rib 8, with each activator face 9, 10 located above the corresponding winding 5, 6,

The washing machine operates as follows.

On the winding 5, 6 of the drive electromagnets, the mains voltage is applied alternately through the diodes. The diodes are turned on so that the positive half-wave of the mains voltage always arrives at winding 5, and negative at the winding 6. When a positive half-wave of voltage arrives at winding 5, current flows through it, and activator 2 is attracted by face 9 to electromagnet 3, while the working solution is squeezed under high pressure from the cavity formed by the bottom of the tank 7 and face 9. During this period, the winding b is de-energized . When a negative half-wave of voltage arrives at the winding, a current flows through it, and the activator 2 is attracted by face 10 to the electromagnet 4. The working solution is squeezed out under high pressure from the cavity formed by the bottom of the tank 7 and face 10. During this period, the winding 5 is de-energized .

With a constant supply of voltage to the windings 7, the activator performs oscillatory movements, creating jets of working solution, intensively washing clothes.

In addition, the surface of the activator in the process emits acoustic waves with a frequency of 100 Hz. These acoustic waves are transmitted to the working solution and

laundry, which enhances the washing effect.

In the present invention, the magnetic wire is made on the basis of a simple laden U-shaped transformer iron. Since the activator is supported by the rib on the bottom of the tank, there is no need to create a constant component of the force by the windings of the electromagnet holding the activator in the plane of the windings.

When executing an activator with angular

by bending in the central part and its locations on the bottom of the tank with the possibility of swinging relative to the central rib, the oscillation amplitude of each of the activator faces increases to 4-6 mm. An increase in the amplitude of vibrations of the activator faces leads to the formation of more powerful jets of the working solution, which leads to more intensive washing of the laundry and, consequently, to an increase in the washing intensity.

Optimal angles between faces

angles are 160-170 °. At an angle of more than 170 °, the gap between the bottom of the tank and the faces of the activator is not sufficient to obtain sufficient oscillation amplitudes of the activator.

The location of the faces at an angle of less than 160 ° provides a significant gap between the bottom of the tank and the faces of the activator, which significantly reduces the force of attraction of the activator to the drive electromagnets, and this in

Claims (2)

1. A washing machine comprising a vertical tank of washing liquid and flat activator with through conical holes, transversely placed in the lower part of the tank with the possibility of oscillatory motion from the electromagnetic drive with two windings located outside the tank, characterized in that, in order to intensify the washing process and simplify the design, the windings of the electromagnetic drive are located under the bottom tank symmetrically with respect to its vertical axis, and the activator is made with an angular bend in its central part and is located on the bottom of the tank with the possibility of swinging relative to the central rib, with each activator face located above the corresponding winding of the electromagnet. 2. The machine of claim 1. characterized in that the angle between the faces of the activator is 160-170 °. # t / e. / L-L