Powerful fan with your own hands. How to make different types of fans do it yourself how to make a powerful fan do it yourself

In the midst of heat fans - the best "friends." But in the summer season, the prices of them are specially overestimated (since the running goods), and therefore often have to refuse the desired purchase. After all, who will like to overpay? The optimal option in this situation is to make a desktop rotating fan with your own hands.

Moreover, its device is so simple in a constructive plan that everyone will be able to make a homemade "aggregate". Fan Desktop version - a great solution if you spend a lot of time, for example, for computer table at home or at work. A homemade fan will be useful and in other situations. Let's start assembling.

Materials and main stages of work

For the manufacture of a homemade desktop fan, the following materials will be required: Wooden blanks different sizes, plastic bottle, Little electric motor (RF-500 or other) and gear motor. It will also be necessary to prepare one gear from plastics, plastic cork, Two bolts with nuts and washers, Micro USB connector, two inclusion buttons and two clothespins.

Of wooden detailsUsing thermocons and a bolt with a nut, we collect a swivel area on which the electric motor is then attached. From the rest of the bores we make the body of the fan, and then install the gear engine, which will drive the turntable. The base is made from two slims, between which you need to stick the clothespins (for mounting to the table).

Very often in the sultry heat in the room there is not enough at least minimal air flow. To solve this problem, many buy desktop fans, they are convenient and compact, some of them running from USB, that is, they can be connected to any charging, plunger or laptop so that coolness is always with you. But why buy what you can do from the remedies yourself? For the readers of the site we prepared two simple instructionsthat intelligibly explains how to make a USB fan at home with your own hands. So, all you need to prepare is a sharp knife, good scissors, isolent, an unnecessary USB cord and, in fact, the executive body of the self-class. As for the latter, it is customary to use one of two options: the old cooler from the computer is either a motor from the typewriter or other toys.

Idea number 1 - We use cooler

In order to collect a USB fan from a cooler, no more than 15 minutes will be required. First you need to prepare a cooler. Two wires come from the device - black and red, and sometimes yellow, even less often - blue. Yellow and blue will not be useful to us. We clean the isolation by 10 mm and lay the prepared element aside.

Next, you need to prepare USB wire. We cut off one half of half and in the location of the cut, we consider insulation with a sharp knife, the stationery is perfect. Under it you will see four wires from which two are necessary: \u200b\u200bred and black. They are also cleaned, while the remaining two (as a rule, green and white) is better to cut and insulate.

Now, as you understand, you need to pairwise connect the prepared contacts, according to: red with red, black with black with a twist. After that, it is necessary to carefully insulate the cable connection locations using a tape or heat shrinkage and make a stand. As for the stand, then the case of your imagination. Someone successfully applies a wire, others very interestingly cut off the landing socket in a cardboard box.

In the end, a homemade mini fan connects to a computer or charger, and you can enjoy the work of your own electrical appliance.

Idea with cooler

Idea number 2 - We use the Motor

In order to make a USB fan from a motor and a CD disc, it will take a little longer, but still in an hour you can easily make such an electrical appliance with your own hands. The engine for such a self-made is worth choosing with a working voltage of about 5 volts, you can slightly more. If you take the motor to a lower voltage, then the chain will fly too much current and the motor will quickly fail.

First you prepare all the elements of the device. In this case, you will need to make an impeller (blades).

To make it recommend to use an ordinary CD. We draw it into 8 equal parts and gently cut through good scissors, slightly at least reaching the center. Next, heating the disk (it is convenient to make it a lighter), and when the plastic becomes more elastic, wound up the blades at an equal one (as shown in the photo).

If the impairing is not unhappy, then during the rotation of the disk the air flow will not be created. However, if you overdo it, the homemade will also work badly and unstable.

When the blades are ready, go to the creation of the main mechanism. Inside the disk you need to insert an ordinary, cropped to the desired size, a cork from champagne, which must be placed on the shaft of the motor. Next, go to the creation of the USB Fan Fan Stand for a laptop.

Here as in previous version, It all depends on your imagination. Of all the remedies, the option with the most suitable wire. When the home-made USB fan is ready, connect the wires of the motor to the Wires of the YUSB cord, as in the past version, carefully insulate the twist and go to tests.

In the southern regions, it is very hot, nothing will prevent such a "super-powerful" portable fan.

You can take a 18-volt engine of the electric drill, the propeller of the radio-controlled aircraft and the battery from the laptop. 4 volts are optimal option, In addition, not too noisy when working. With 12 volts, the device will be heavy duty, loud and will "rattle" (due to vibration) on the table.

Required components
Motor and batteries are the most expensive parts. You can buy a cheap used drill with a damaged battery and simply use the motor. Used laptop batteries typically have 6 cells and can not work if one cell is dead. You can buy these batteries for snacks and take workers cells to make a powerful battery (http://www.instructables.com/id/free-lithium-battery-pack).

Required parts:

• electric motor direct current electric drills;
• laptop battery;
• plastic fan blades;
• 1/8 "Plywood;
• plywood and 2x1 bars "engine mounting;
• switch (in our case 2p2t switch for 2 speeds); - electrocable.

Check engine and batteries
Secure the engine with a fan to something solid.
You can try to apply different stress on it to adjust the desired wind power. In our case, for a 4-volt battery, a current of 1.5a was ideal. The 8-volt battery for good power corresponds to the current 3a.
Use 4 batteries, 4 parallel to 4V and 2 sets of 2 parallel batteries on 8V. So low power They are enough about 5 hours, and at high power for about 1.5 hours.
Connect the wires 2P2T switch to switch between the sequential and parallel diagram.

Creating an air duct and engine mount
First, the 2x1 bars "glue with each other so that the letter T. Measure the pieces so as to provide a propeller about half an inches of the gap on each side.
After gluing bars, rounded their faces to give them streaming.
For mounting the engine, cut 2 triangles from the tree. I look a piece of plywood 1/8 "in water, and then bend it and let it dry. You can cut 3 strips of 3.5" from wood fibers perpendicular to the workpiece to be easier to bend it. Use the bars bonded by the letter T as the base to cover it with 3 pieces of plywood with the overlap of the joints and leaving one joint. Then glue the 3nd end of the letter T with plywood duct. It is also important to try on the engine mount to make sure that the sufficient gap is left.
Then cut the two pieces of 1/4 "plywood about 4.5x1.5 to form the support of the air duct at the top. Sharpen these supports to the air duct and to" T ".

Glue a piece of wood to "T" to stop the engine from sliding back, as the motor pushes the air forward, and the motor itself is then repelled back.
To secure the motor, you can use 2 zip-links from below.

Battery layout
Apply a 6-element laptop battery to power the fan. For a cycling fan in motion, a 12V fan is needed. As a table fan 4V or 8V more than enough.

Wires to the engine
Sold down two wires with a cross section of 14 to the engine. Find the tape. So that the wires do not get into the blades, secure them on the fan support.

Testing
Save the engine parallel to 2 sets of 3 combined cells. The voltage should be about 11.8 V. Even the multimeter should show 3.38 A. Multimeter has some resistance, so the current is actually about 4a. More than 47 watts. It is a very powerful little fan. On 16 in this fan can already decently push the bike.

Installation of protection
The propeller rotates too quickly, so it will be necessary to install protection.
With the help of a breech, cut the circle from the protective lattice of a large fan so that its radius was more than half the air duct. Cut the wire around the air duct. Then hot glue glue the protection in front and rear.

Installing a switch
Set the switch. Now the fan can easily turn on and off. You can apply a 2T2P switch, and get two speeds of rotation.

We will make the simplest fan.
It will take:
1. Engine for 3 V
2. Section for 2 batteries of 1.5 V. I took in the store "Chip and Dip".
3. Switch.
4. Wire 15 cm.
5. Bobbins from a fishing line or ropes, a bank from polysorba, a jar from Guashi.
6. Impeller from the cooler of the power supply.
7. Soldering iron.
8. Thermopystoletole.
9. Self-tapping screws 11 pcs. 2 cm long.

1. The reservoir from the threads with a diameter of 5mm and 4.5 cm high - from a fishing line or cord.
We plan a hole with a hole with a switch and cut the manicure scissors a hole slightly less than the size of the switch and insert the switch to the reel:

2. Now form a fan frame: make up 3 reels together and make four holes under the bolts or screws with a marker on the bottom of the upper bobbins. We burn holes across the edges of two bobbins:

3. With the help of a lighter we pay and clean the red wire from the section with batteries and secure to one terminal of the switch, and to the other - the second red wire. To isolate the terminals from contact with each other, fill them with a thermoclaim:

4. Breep the red wire to the plus + engine, and black, respectively, - to minus - engine:

5. The top can be made of a box from under Guoishes: on the cover of the soldering iron we form a hole for the wires and 3 holes for the tapping screw. And on the box itself, cut the hole with manicure scissors slightly less than the engine diameter and put inside. As in the case of a switch, you can pour a thermoclaim outside for reliability.

6. The impeller from the cooler is planted on the plug, the emptiness is plumbing with a plasticine or poured with paraffin, a self-tapping screw or a seboard, we make a hole in the plug, poured with epoxy glue or a thermoclaim, and plan the engine. If this epoxy resin - Leave to dry for a day and only then turn on!

The question is trivial. We first recommend determining the installation location of the homemade fan. The technique dominates two types of engines: collector (historically first), asynchronous (invented by Nikola Tesla). The first is very noisy, switching sections causes a spark, brushes rub, causing noise. Asynchronous engine with a short-circuited rotor trotter, noise generates less. Put-protection relay will find in the refrigerator. By adding a pair of frases like fun phrases, we will refund the seriousness of the site. How to make a fan with your own hands, do not scare relatives. Let's try to answer.

Aspects of the design of the self-made fan

The fan device is so simple, the meaning disappears to tell, paint inside. What to take into account when designing? Remember the growl cyclone vacuum cleaner, Volume above 70 dB. Inside the collector engine. More often eliminated revolutions. Decide, at the installation site of the homemade fan, let's say a similar sound pressure level? By choosing the second, concentrate on asynchronous motors, simple models do not require a starting winding. Power is small, the secondary EDF is guided by the Stator field.

The drum of an asynchronous motor with a short-circuited rotor is cut through copper veins by forming, corner to the axis. The direction of the slope determines the direction of rotation of the engine rotor. Copper veins are not isolated from the drum material, the conductivity of the Olympic metal is superior to the surrounding material (silumin), the difference of potentials between neighboring residents is small. The current flows on copper. Meaning the stator, the rotor does not have contact, Iskre is not yet engaged (wire is covered with lacquer insulation).

The noise of the asynchronous motor is determined by two factors:

1. The alternator and the rotor is.
2. Bearing quality.

Correcting the setting, maintenance of an asynchronous engine, can be achieved almost complete silent. We recommend thinking whether the level of sound pressure is important. It concerns the channel fan- is allowed to use the collector engine, the requirements will set the location of the section.

The channel fan put inside the duct section, mount, breaking the path. For maintenance, the section is withdrawn.

The noise loses the primary role. Sound wave, passing the air duct, fades. Especially fast part of the spectrum having inconsistent dimensions relative to the width / length of the cross section of the path. For details, read textbooks on acoustic lines. The collector engine can be used in the basement, garage, deprived of people. The neighbors of the cooperative will hear, rather bend attention to pay attention.

What is a good collector engine that we fight for the right to use. Three lack of asynchronous:

At the initial moment asynchronous engine Does not develop a large torque, a number of special constructive measures are being taken. For fan, it does not matter. Most household models are equipped with asynchronous engines. At production, the number of phases increase to three.

Search Engine for fan

In one video, YouTube was asked to use the DC motor for 3 volts from the economic store. Copies USB cord, running, rotating a laser disk blade. Useful invention? If you are tired of an extra port, the heat will help to survive. It is easier to take a processor cooler, squeeze from the system unit. 12 volts are yellow wire (red on 5). Black couple - Earth. From the old computer will collect. Citizens of the Russian Federation just laziness to invent, throw out curious equipment for a landfill.

Asynchronous fan engines operate without a starting capacitor ... The feature of the fan engines is: go straight with winding. A pair of tips to help get the engine:

Make a fan impeller

The question is from what to make a fan, not resolved, the authors of the impeller are silent. First-night refrigerator! The compressor is blown by the impeller. You will get a motor, remove. It will be useful. Concerning washing machine, Drum let me on the aviation propeller. Plastic tank is suitable to make a housing. Separate seats Warm with a construction hairdryer.

Inspect the blender, supply an unnecessary laser disk that obtained the shape of the impeller. You can make the fan on your own, using pricked materials. It does not require high power, it makes no sense too much, honing items. Believe, readers know how to make a fan with their own hands.

Eternal fan from the processor cooler

We decided to please readers, told how to make a fan. The review is not the first, I had to dig, looking for worthwhile. It looks elegant the idea of \u200b\u200bcreating an eternal fan, spinning forever. Mail.Ru user posted a design looking attractive. Let's see near, thinking along the way, how to make a fan that works forever.

You know, of course, system blocks work quietly ( modern models). The slightest noise means: the cooler came down the axis, or it's time to lubricate the aged fan. Work for hours, the days are folded by weeks, the system unit will serve as years. It became possible, thanks to the thoughtful technology. Think, noise depends on the magnitude of the friction force. Energy mechanical becomes thermal, acoustic due to the presence of roughness. Processor coolers are easily rotating, it is worth a pour.

The author of the video - apologize for the lack of name, justify: the roller in English - offers to collect an eternal fan from the accessory. The accuracy of fitting parts is large, the blade spins easily. Costs are reduced to a minimum. The author of the video laid out by the Deirones channel, noticed: The processor fan is powered by a constant current. Page inside, found four coils, equidate around the circumference, axes directed to the center of the instructor.

Inside no switches, it means a paradoxical fact: the field of coils is constant.

If an asynchronous engine of a typical fan is powered by a variable voltage of 220 volts, creating a rotating magnetic field, in our case the picture is permanent. Could say: inside the rotor leads a switch in motion, creating the desired distribution. It is not true, confirmed by the further progress of the author's thoughts, the result of experience. Western Novator decides to replace the coil permanent magnet. Indeed, there is no alternating field - why the electric current?

Demonstrately the author cuts off the power wire, there is neodymium (hard disk) magnets perimeter. Each at the continuation of the coil axis. The work is completed, the blades of cheerfully began to rotate. We assume, the principle of sortied by orthodox literature is simply used. Commercial mystery of the patent holder.

The initial movement of the blades is obtained by random air fluctuations. Reminds Magnetron, oscillations are caused by natural chaotic movement elementary particles. The question arose, which sets the direction of rotation. The design is absolutely symmetry. We decided to figure out, express our observations:

Agree, more convenient than tortured USB ports, constantly spending batteries. There is an eternal fan from an arbitrary position, deprived of wires. We assume that the power of magnets plays a decisive role. Stops working a simple rule: more - better. Slises golden middle. When the blades are spinning from a random flow of air, overcoming the field of neodymium pieces. Weak magnets probably powerless to keep the steady rotation. The force of the field must be exactly as created by coils under the action of voltage +5 or +12 volts.

Create an eternal fan correctly

Discussed how to make a fan, measure the direction, the power of the magnetic field of coils. Enjoy special devices. Magnetometer, teslameter, formed by a magnetic induction converter, measuring module. When the interaction of the fields, the resulting picture is obtained, called clutch. The converter generates EMF. The size determines the measured power of the magnetic field. How two fingers! Costs 10,000 rubles.

Magnets will be located at a considerable distance from the axis. Coils are much closer. You need to know the change in the picture with the distance. According to the law of the coulon, the force falls inversely proportional to the square of remoteness, it is fair for single charges of an arbitrary sign. The magnetic poles separate in nature are not yet found (it is not possible to create possible), a cube of the distance is introduced into the law. Suppose the removal to the coil from the axis is 1 cm, the perimeter of the diagonal is obtained 10. So neodymium should be stronger than 10 x 10 x 10 \u003d 1000 times, a small coil.

No one obliges to have neodymium magnets perimeter of the fan on the diagonals. Poles lie crosswise. Regulate the effect of exposure overwhelming. Having neodymium magnets in the center of the parties of the fan frame, significantly increase the field strength. Calculate. Suppose the hypotenuse of the triangle with a side of 10 cm is a diagonal. The distance to the center of the square will be equal to 10 / √2 \u003d 7 cm. You see, the ratio from 1000 drops, reaching 7 x 7 x 7 \u003d 343. Weight, desperate to find strong neodymium magnets to create an eternal fan.

Measurement! Compass is suitable (there are custom structures collected with their own hands, for example, http://polyus.clan.su/index/indikatory_magnitnogo_polja_svoimi_rukami/0-52). One coil should be connected to power. Then find the position, the lifted arrow will deflect about 45 degrees (do not like it - take any other azimuth). After start experiment with neodymium. Place a piece on different deletes, seeking coincidence of the deviation of the arrow with the processor fan coil when using the coil. Surely the distance is not equal to the diagonal, half of the part, you will have neodymium breaking, cutting.

Singing one edge in length, carefully break parts about a nail, getting the desired field strength to create an eternal fan. We assume the induction is distributed proportional to the volume. Today they told you intelligibly, how to make a fan with your own hands!

Power supply

Wishing to make a fan with their own hands, sees 3 problems: get the engine, food, make a propeller. Details must be mutually docked. Three problems are solved, you begin to make a fan with your own hands. Today at home the abundance of pulsed power supplies. Think up, it started in the 90s. Gaming consoles, mobile phones, other equipment. Technique breaks, pulse power supplies remain. Voltage is sometimes non-standard, most motors work, feeding any voltage. Just turnover will change accordingly. The house was broken broken appliances - Immediately make the fan yourself.

Homemade fan power supplies

Constantly people try to make a special fan with their own hands. One question more often goes beyond the discussion: a power source. The fan device itself is so obvious, disappeared to stop more. So, it is clear that the batteries today are unthinkable. Will it be able to work for a long time. The answer is no. In the extreme case, take the Kronu, in soviet time considered a reliable source of energy. The power supply is bad, power will gradually fall, turns to decrease, the person is annoyed. Important stability without additional effort. There is no small battery 12 volts - get ready: let's start looking how to make the source of the self-made fan energy.

The first, comes to mind: to smoke the computer. It is known, miniature devices are powered by a USB port. Gadgets are recharged. The USB port is a source of inexhaustible energy. The voltage is small, the low-voltage DC motor will be needed. We believe, you can find at home to buy in a shopping store. How much will be the power of the port: according to old standards 2-3 W. Another thing is to find a host device with an updated interface version (2014 declared rarity). The developers promised to give 50 W (even more, hard to believe). True wires will become more, rated voltages will increase. We remind, according to the tradition, the power is fed to red (+), black (-) wires. White, green - signal.

It is clear, it is difficult to expect high power, "even if the port supports, the motor will not pull. It is recommended to take a rash rash. The engine must be powered by a rapid voltage. For example, we recommend using a processor cooler. The supply voltage is less than 12 volts, it simply drops the speed of rotation. Excess Beware - Motor burns.

We are looking for energy, the question is easier solved than for 3 volts:

12 volt power supply for homemade fan with your own hands

We propose not to collect the pulse power supply, do it yourself usual. Recall, the first is distinguished by small-sized transformers. Therefore, the power supply will be relatively large dimensions. It will consist of the following parts:

• A step-down transformer. I do not call the number of turns in advance, the voltage is unknown, rectifting which diodes, we get 12 volts. Of course, you can experiment, like video YouTube about homemade radio receivers, capturing the reader, looking for a ready-made solution.
• Bridge bippetier, adding three three, increase the efficiency. Radioetals do not differ much cost.
• The backbone of the power supply is ready for the homemade fan to serve for a long time, straightening network ripples. After the bridge, turn on the lower frequency filter, the scheme pervertise from the Internet.

At the output, the constant voltage of the amplitude of 12 volts. Try not to confuse the terminals. Where "Plus", where "minus" can be understood by studying the scheme. Below are the picture of the bridge, see, read the explanation. In the radio electronics, the current direction indicates the opposite of the true one. The charges flow, according to believing, in the direction from the plus to minus (towards electrons). Reading the scheme, you will see: the diode, the transistor emitter marked with the arrow, looks incorrectly. In the direction of the movement of positive charges. Each has a mark, in the diagram is denoted by a huge triangle arrow. Therefore, we always learn, "plus", guided by graphic notities given by the drawing.

The drawing shows: plus it will be right, passed according to the diode arrow to the lower terminal of the output. Minus leaves upstairs. With alternating voltage (roughly speaking), plus, minus will be alternated to the left-right, it will become understandable to the name of the rectifier - bippetier. Works on a positive part of the voltage and negative. Diodes take power, low-frequency. Solid sizes, scattered power is relatively large. It is possible to calculate, using the uncomplicated formula, taken from the training course of physics. The resistance of the open P-N transition (sheets of the directory) multiply on the current consumed by the engine, we take the stock at least 2 times. The motor body contains an inscription indicating power, can be divided into 12 volt voltage, simply multiply by 2 - 3, take a diode with an equivalent dispersion power (see directory).

Now we calculate the transformer ... I went here http://radiolodka.ru/programmy/radiolyubitelskie/kalkulyatory-radiolyubitelya/, chose the Trans50 program, we will master it. Note, among the software, it is possible to calculate the filter parameters. Do not regret what they gathered to make a fan? Offers choose one of the 5 windings. Steel participates everywhere. You can do, losses will be great. Steel forms a magnetic circuit, the energy gets the secondary winding. It is better to find an old rusty transformer. The time is bad, in the hungry 90s dumps are littered with the plates of the windings surrendered into scrap. There were no problems with winding transformers.

It's time to understand how voltage will need the correct operation of the scheme. The term borrowed from electronics acting the AC voltage is helped. Voltage, on the active impedance, creating a thermal effect equal to the constant voltage of the active amplitude. To obtain the required voltage value on the secondary winding, you need 12 volts to divide by 0.707 (the unit divided by the root of Square 2). The authors received 17 volts. The engineering calculation sins 30% error, take a small supply (part of the amplitude to 1 volt will be lost on diodes).

As for the current of the secondary winding (you need to calculate), type something like "Culera's power" in the search engine. We will do with readers. Smart articles write: Couple consumption current is indicated on the housing. There will be the necessary parameter, we will substitute in the calculator. Secondary winding voltage Author took 19 volts. The voltage drop on the P-N transitions of powerful silicon diodes is 0.5 - 0.7 volts. Therefore, a corresponding stock is needed. Smart heads searched, made a conclusion, the cooler of the processor does not consume over 5 W, therefore, the current is equal to 5 divide by 12 \u003d 0.417 A. We substitute the numbers to the ribbon calculator, for the ribbon core, we obtain the transformer design parameters:

1. Sections of the magnetic pipeline under winding 25 x 32 mm.
2. Window in magnetically wire 25 x 40 mm.
3. The magnetic circuit breeded with a frame under the winding of the wire with a thickness of 1 mM and a cross section of 27 x 34 mm.
4. The wire is wound along the main side of the window, 1 mm from the edges remains a stock, and a total of 38 mm.

The primary winding is formed with 1032 with a diameter of 0.43 mm with a diameter. The approximate length of the wire is 142 meters, the total resistance of 17.15 ohms. The secondary winding consists of 105 turns of copper vein with lacquer insulation with a diameter of 0.6 mm (length 16.5 meters, resistance of 1 Ohm). Now readers understand: the question is from what to make a fan, they begin to solve the core ...

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