Detailed structure of the Indesit washing machine with description and purpose of components

While the washing machine works without failures, few people are interested in its structure.

But as soon as household appliances break down and do-it-yourself repairs are planned, detailed information about where individual elements are located and how they work will help carry out the work competently, quickly and efficiently.

We will tell you about the design of Indesit washing machines in the article.

How does an automatic washing machine work?

In general terms, all parts and components are contained in the body of the washing machine. Regardless of the Indesit washing machine model, the body consists of:

• front,
• rear,
• two side panels and a cover.

The internal structure of the Indesit washing machine is a certain set of mechanisms and parts, each of which carries a certain functional load.

Control module and electronics elements

Control module - "think tank" Indesit washing machine. This is a printed circuit board on which electronic parts are located in a certain sequence. They record signals about the start or stop of operation of individual elements of the washing machine.

The microprocessor synchronizes the received information, thereby ensuring uninterrupted operation of the washing machine.

In addition to the module, the control system includes the following elements:

• pressure switch (monitors the amount of water in the tank);
• temperature sensor (monitors the temperature of the water entering the washing machine tank);
• tachometer (records and regulates the number of engine revolutions).

All information about running processes is displayed on a special display. If there is a failure in the program or some mechanism fails, an error code is immediately displayed on the display (the “self-diagnosis” system is triggered). Having studied the decoding of the codes, you can easily determine the cause of the breakdown and eliminate it on your own.

UBL

UBL (hatch locking device) is an electronic lock, blocking the opening of the hatch door after starting the washing program (a kind of protection against leaks). The UBL consists of three parts: a thermoelement, a bimetallic plate and a fixing device.

The control module sends a signal to the thermocouple to start the washing program. The thermoelement begins to heat up, transferring heat to the bimetallic plate, which, expanding when heated, pushes out the latch. As a result, the lock blocks the opening of the hatch (a characteristic click is heard).

After the module receives a signal about the end of the wash and the complete emptying of the tank, the lock unlocking system is activated and the hatch door opens.

Inlet valve and water level sensor

After the electronic lock locks the hatch door, the washing process starts and the inlet valve is activated. This is a small element with a coil inside it.. After a signal is sent from the module about the start of washing, current begins to flow to the coil. Under the influence of an electromagnetic field, the inlet valve opens (water flow into the tank begins).

The drum fillability is controlled by a pressure switch (water level sensor). This is a small plastic washer with wires connected to one side and a tube on the other. Inside the sensor there is a thin membrane. During the process of filling with water, the air pressure in the tank increases. Having reached a critical point, the air squeezes the membrane, causing the sensor to transmit a signal to the module to stop the water supply.

Powder receiver

Detergent dispenser (powder receiver) - plastic tray divided into three parts. Each compartment, responsible for a certain stage of washing, has pipes connected to it from above. As soon as the washing process starts, the control module sends a signal and water begins to flow into the desired compartment.

Mixing with the washing powder, the soap solution goes further through the pipes into the drum of the washing machine. You can find the powder receptacle in the upper left corner of the Indesit washing machine.

Heating element and temperature sensor

Depending on the washing mode, you must select the water heating temperature before starting the program. Exactly The heating element (heating element) provides water heating to the specified temperature values. In appearance, the heating element is a curved tube, inside of which there is a spiral and a dielectric insulator (accumulator and heat transmitter from the inner spiral to the outer shell of the heating element).

The ends of the tube are connected to contacts through which signals about the heating of the coil are received from the module.As soon as the tube heats up and brings the water temperature to the programmed value, the thermostat is activated.

Temperature sensor (thermostat) - cylindrical semiconductor resistor (diameter no more than 10 cm). The sensor is fixed in a special connector located at the bottom of the Ten between the contacts. As the water heating temperature increases, the electrical resistance of the temperature sensor increases.

As soon as the resistance value reaches the limit value (set by the program), it transmits a signal to the control module to stop the supply of electricity, thereby blocking the water heating process.

Motor and tachogenerator

It is the motor that is responsible for the rotation of the drum. In modern models of Indesit washing machines, commutator-type electric motors are most often installed. Unlike asynchronous-type motors (installed on older models of washing machines), commutator-type motors are smaller in size and provide the highest possible rotation speed, regardless of the frequency of the electrical network.

The engine consists of enclosed in an aluminum housing:

• rotor,
• stator,
• tachogenerator and two brushes.

An electrical impulse passing through the winding of a stationary stator and graphite brushes sets in motion the moving element of the engine - the rotor. During operation of the washing machine, the brushes wear out, the contact between the stator and the rotor weakens, and the engine loses its power.

Tachogenerator (Hall sensor) - electric coil that determines the speed of rotation of the electric motor. This is a small metal ring connected by wires to the motor shaft. When the motor rotates, an electromagnetic field is formed inside the coil. Depending on the rotation speed, the voltage indicator changes.The sensor reads this information and sends it to the control module, which in turn regulates engine operation.

Drum

The central element of the internal structure of the Indesit washing machine is the drum. It is here that the washing process is carried out directly. The drum is a cylindrical container with perforated walls made of stainless steel. The flow of water from the drum is prevented by a tightly closed door and a rubber cuff surrounding the entrance to the hatch. The drum is placed in the tank.

The tank and drum are connected to each other by a shaft with bearings. On the back of the tank, a pulley with a transmission belt is attached to the shaft. It is the belt that transmits the revolutions from the motor hub to the pulley, thereby causing the drum to rotate.

There are many auxiliary elements connected to the tank:

1. Shock absorbers (dampen vibrations of the tank during washing or spinning). One side of the shock absorber is attached to the tank, the other - to the base of the washing machine body.
2. Springs (compensate for vibrations of the tank, are attached with one side to the upper part of the washing machine body, and the other to the top of the tank).
3. Counterweight (heavy concrete block installed on the tank to compensate for imbalance during the washing or spinning process).
4. Hoses, pipes (tap water mixed with powder from the dispensary flows into the drum through the upper elements; waste water goes into the drain through the lower elements).

The tank is attached to the body using a special rubber cuff (it can be seen by opening the hatch door) and a metal clamp.

In modern models of Indesit washing machines, the motor is attached directly to the drum along the rear wall (the so-called direct drive). This type of connection of two nodes is considered more efficient. Rotating the drum requires less energy, and the motor itself takes up less space.

Drain pump

After the washing process is completed, the control module sends a signal to start the drain pump (consists of a motor, drain filter and snail). Through a rubber pipe connected with special clamps to the tank and volute, waste water enters the drain pump (pump).

To prevent foreign particles from dirty water (threads, lint, hair) from getting onto the impeller of the drain pump motor during the draining process, a drain filter is installed between the volute and the pump.

Next, the water flows through a corrugated hose (length from one to four meters) into the sewer. A corrugated hose is attached to the pump on one side and lowered into the sewer system on the other.

You will find maximum useful information about Indesit washing machines in this section.

Conclusion

The structure of the Indesit washing machine is a complex system of mechanisms, components and elements, the correct interaction of which ensures the uninterrupted operation of household appliances.