Household fans: types, selection and making their own hands

In hot weather, people often use household fans. They are compact, virtually silent and create an atmosphere of comfort and convenience. About these devices and will be discussed in the article

A small household fan is good to put in a private suburban home ownership - usually such devices "spud" up to 25 square meters. m of usable area. The power of such a device for the home can reach 50 watts. In modern fans, which are purchased in specialized stores, there are three speeds, there is also a swivel unit, which can be easily turned off if necessary.These units are controlled using the remote control or buttons located on the panel at the base of the device.

There are two main types of cooling devices:

• centrifugal;
• axial.

The second option is used at home more often, as it creates a slight pressure of air flow. The impeller device may consist of 3 blades, and maybe - from 30. The device of such a unit is made as follows:

• blades are attached to the sleeve;
• the sleeve itself is mounted on the axle;
• the axis rotates due to the work of the electric motor, to which it is also attached.

Axial devices There are the following types:

• reversible - the blades are arranged symmetrically;
• without reverse - the blades are assembled asymmetrically.

Also, the fans differ in the method of manufacturing the impeller.

Reversible fans are units that operate in two modes:

• for air exhaust;
• on the air flow.

The device of the floor fan implies the presence of a leg, which can be adjusted at its discretion. Also, quite often there are structures in which the angle of inclination and angles of rotation change. These important details make it possible to create optimal blowing modes and additional comfort.

Floor fans are differentiated into three large subgroups:

• axial;
• radial;
• blameless.

Axial devices "with a propeller" the most common. A bladeless fan is considered a more advanced type of device, because in fact it is a round metal frame that is equipped with a working engine. During his work, the air masses literally “push” into the room. Such models allow to cool large spaces for the minimum amount of time. Floor fans are often equipped with humidity sensors and air ionizers. They turn on the device in automatic mode, restoring the microclimate level set in the room.You can also find sensors that react to the appearance of a person in the room - in this case the fan turns on automatically.

Buying a fan in a room is not an easy task, because it requires certain technical knowledge. First of all, you should know exactly what priorities exist, what you should focus on in the first place. The criterion when choosing a unit is its power, because it is the main factor determining the area of ​​"coverage" of the room with cold air. There are also various other priorities that are important to consider when making this purchase.

If the fan is a desktop type, then its power is not so significant. - for such a device is important, above all, the size of the blades, as well as noiseless operation. Its use at night depends on the latter parameter. The level of reproduced noise can vary from 30 to 45 dB. For night operation, the fan noise level should not exceed 42 dB. You should also pay attention to the basis of the mounting blades of the device. If there is a sleeve, then there will be several times more noise.The presence of a ball bearing significantly reduces this figure, and also increases the service life of the purchased product.

Modern electronic devices can now be found literally on all household appliances, including fans.

These include:

• time indicator;
• ionization system;
• temperature and humidity indicator.

Also when buying is recommended to pay attention to weight. With an increase in the speed of rotation, the coefficient of unstable equilibrium increases (with the exception of fans mounted on vertical surfaces). It is not recommended to buy models of unknown trademarks, because in the pursuit of cheapness, you can buy low-quality goods, which may soon fail.

Hundreds of models of room fans are presented at various trading platforms - you can get confused in such a wide range. Floor fans are the quietest, so they occupy the top lines of sales.

Mystery MSF-2402. This is an economical, powerful and inexpensive device with a remote control, which is ideal for a country house. Power is 46 watts. The device has three blades, the height of the rack device can be adjusted. Such a unit works at three speeds. If desired, the rotation function can be turned off.

Maxwell MW-3546. This is another popular fan that can be put on the floor. It features a spectacular view: it has a black color with white patches. Power is 36 watts. In this model, you can adjust the height, angle of rotation, the speed of rotation of the blades. The device is controlled by buttons.

Model Xiaomi Mi Smart Fan corresponds to the format of "smart home". Operated using a smartphone or personal computer. The unit can be programmed while away from home, through a special application on the computer.

The device has the following functions:

• change of sound signals;
• angle of rotation;
• modern design;
• setting the time mode;
• tilt adjustment of the rotating unit from 32 to 125 degrees;
• change the speed of rotation of the blades;
• power selection (mains or battery).

Polaris PSF 3040RC. Popular fan from the premium segment. It is not cheap, but is in high demand among users. Unit power - 56 watts.There are three modes of operation. On the panel there are numerous indicators that indicate the nature of the device. The advantages of work: you can create a fresh sea wind, the air flow can change every 2-3 seconds, it is also possible to stepwise decrease the speed of the airflow. Rotation is valid up to 90 degrees. The device is controlled from a remote control or using buttons.

A fan is a very simple device, and even a schoolboy will be able to assemble it on his own.

First of all, you should prepare the required work items:

• compact discs in an amount of 2 pieces;
• a small motor from a desktop cooler;
• cork;
• wire with USB input;
• a candle or cigarette lighter;
• pencil and ruler;
• special thermal glue;
• as a block, you can take any cardboard packaging of small sizes.

The advantage of this scheme is that all the blocks are at hand. A CD-ROM is divided into eight equal parts, you can use a geodetic paper or an ordinary school notebook in the cell. Having drawn a figure in the form of a cross, where there are vertical and horizontal lines, each of the corners is differentiated exactly by half. Also, this operation is easy to perform with a protractor.The result will be identical figures, which should coincide with each other. The plastic is easily cut with a hot knife - this should be done carefully so that there are no melted burrs left, otherwise you can get hurt.

A wine cork is installed in the hole for better fixation of the element, the joints are processed with glue. With the help of the flame of a candle, plastic figures should be deformed, bending them slightly. A wire with a USB port must be connected to the engine. The polarity easily changes, therefore, the direction of rotation of the blades changes. Thus, we have an improvised propeller, which must be installed on a rotating axis. Glue allows you to properly and securely fasten all components of the structure. Time for all the work will take a bit - no more than two hours.

A homemade plastic bottle fan is made quite simple. There are two variants of such an invention. The first is the manufacture of a plastic 1.5 liter bottle. Motor can be taken from the computer cooler.

Also require the following components:

• finger-type battery;
• felt-tip pen;
• wax;
• nails;
• piece of foam;
• hot melt glue

The upper part is cut in place of the beginning of the bottle label - it is easier to make a propeller out of it. The workpiece is cut into six equal parts. The edges of the future blades must necessarily be rounded. With the help of a flame of a candle, plastic can be bent in any direction - this must be done. The blades are mounted on the base with hot melt, then the whole product is mounted on a rotating axis. The engine is mounted on the foam plastic - this is easy to do, since the foam is cut without any difficulties. After that, it will only be necessary to screw the propeller on the cork, which will firmly “sit” on the engine.

The purchased device may appear following defects:

• the indicator functions, but the engine does not work;
• the indicator is off;
• fan blades do not turn;
• during operation, the device produces a hum;
• the machine does not turn on or off.

When the last fault occurs, first of all, with the help of the device, it is necessary to disassemble and check the power source - socket. It is also recommended to inspect the plug itself - possibly a broken contact. If the indicator lights up, the cause may be the failure of the block with buttons.Then it is necessary to disassemble the unit, but in this case the device must be disconnected from the network. With the help of a tester, it is necessary to check the operation of each button in turn. If the button is broken, you can make the connection directly or change this element.

Often fail speed switches. Using the device, they can also be checked and repaired if necessary. In case the blades rotate badly, it is necessary to disassemble the instrument case itself. It may be necessary to lubricate the engine fan bearing with engine oil. The case is disassembled without any difficulties - it is enough to arm with a screwdriver and perform a number of manipulations. The fasteners are unscrewed and the product cover is removed. If the fan stops moving in different directions, then the crank may be the cause - its mounting screws are likely to be loosened. In this case, you need to disassemble the entire body of the device engine.

If the fan makes "incomprehensible" sounds or hum, then there are several reasons for this:

• lack of lubrication;
• the engine does not work well;
• failed capacitor.

Check should, first of all, the capacitor. Make it easy with a tester. The capacitor is located in the engine block, so the case will have to be disassembled. You also need to check the engine - perhaps the fault lies precisely in it. To do this, release the stator from the contacts. Resistance should be within 1.21 kΩ. If this is not the case, the device will begin to buzz, but will not work. Under such circumstances, it will be necessary to rewind, but only in the conditions of a specialized repair center, where there is professional equipment.

Sometimes it happens that the plastic of the blades deteriorates and the product starts making strange sounds.

Deformation can be caused by:

• exposure to ultraviolet radiation;
• mechanical damage;
• loose sleeve.

On how to repair your own home fan, see the following video.