Homemade generator from the engine from the washing machine
Disruptions to the central power supply, as well as exorbitant electricity bills, are increasingly forcing people to think about an autonomous power source. Let the generator be low-power, and work only as a backup source of energy, but it can help out at the most important moment.
We also decided not to stand aside and offer a “workable version” of remaking the asynchronous motor from an old washing machine into a fairly powerful 1.5 kW generator.
Getting ready to make a generator
If you decide to "bungle up" your own home-made electric generator in a quick way, "riveting" the engine from the washing machine, it is better to immediately throw the illusions to the side, because "in a quick way" it will not work. First, you will need to solve three main problems:
- how to partially remove the core of the old working engine from the washing machine and prepare grooves for magnets on it;
- where to get neodymium magnets for the rotor of the generator;
- what to make a template for attaching magnets.
Let's solve the first problem. Take an asynchronous motor from the old “washing machine”, dismantle its body, and then, using a lathe, cut a part of the core to a depth of about 2 mm. Put the engine aside for now. Next, we will need to purchase a set of neodymium magnets, it is easiest to order them in the online store. We are waiting for the magnets to come.
After that, we cut out the grooves on the machine core of the engine core, 5 mm deep, under the magnets. Here you need to masterfully own a lathe, it is best to call for the help of some familiar turner. After you prepare the motor core, you will need to think of what to make a template for mounting magnets. We used a strip of tin, although we admit that other material with similar properties may be suitable. Cut a strip along the length and width so that it accurately lies on the surface of the core.
The tin strip should also be prepared, namely, mark it along the entire length to place 2 rows of magnets on it so that the magnets are at the same distance. Further, to convert the washing machine's electric motor into a generator, we need superglue, cold welding, instead of welding we can take epoxy resin, as well as sandpaper.
Note! It’s better to take cold welding, it’s easier to work with, besides it will immediately help to better fix the magnets, making it easier for you to stick them.
Generator Assembly and Testing
Everything that is necessary in order to make a generator from the engine of the washing machine we have prepared, now we can begin the assembly process. We note immediately that only a very patient person can do this work with his own hands. The magnets constantly come off and stick together, the glue flies in all directions, falling not only on the hands, but also on the face, so be extremely careful and follow safety precautions when working with potentially dangerous chemicals. We do the following:
- We begin to produce a magnetic rotor of the engine in order to turn it into a generator. We glue our tin pattern for magnets across the engine.
- A homemade generator needs magnets, so we, according to the risks noted in advance, put magnets in two rows on superglue.
Important! The distance between the magnets and the angle must be the same, otherwise during the operation of the generator frequent sticking will occur, accompanied by a drop in power.
- Carefully fill the space between the magnets with thoroughly mashed cold welding. It has the consistency of plasticine, so problems should not arise.
- With our own hands we grind the generator made from the engine of the washing machine with sandpaper.To speed up the process, you can clamp the case in the drilling machine, but you can do it yourself without tools, it will turn out a little longer.
We have finished manufacturing the electric generator from the motor of the washing machine, now we can begin the long-awaited tests. In order to check the generator, we need:
- rectifier;
- Solar charge controller;
- multimeter;
- motorcycle battery;
- generator itself.
You also need to think about how you will twist the generator. Fingers are not an option; you cannot provide enough revolutions. It is best to use a screwdriver or an electric drill for these purposes. We find on our generator two wires of the working winding, and cut the rest. We connect these wires through the rectifier to the charge controller, and we, in turn, connect it to the battery. We put the crocodiles of the multimeter on the battery terminals - that's all and it’s ready to test the generator.
We charge in the chuck of an electric drill (you can screwdriver), the pulley of the generator and untwist it up to 800-1000 revolutions. At the output, we get 270 volts with moderate sticking of magnets - not a bad result.
Prospects for using a similar generator
Many people ask, well, we made such a generator, and what, how to apply it in the household so that it brings benefits? Personally, we made this generator with an aim to independently manufacture a gasoline power station from a morally obsolete, but working Soviet Friendship chainsaw. According to our calculations, the design should have turned out a penny, which can not be said about factory gasoline stations.
As a result, we managed to realize our idea. We connected the chainsaw engine to our generator through the drive belt, securing everything to the frame from the same chainsaw. I did not even have to separately cook the frame. Our power plant has been working properly for the second year, supplying all energy consumers in a country house. There is enough power to light two rooms, to ensure the operation of a computer and a TV.
There are other uses for a makeshift generator. In the article wind generator from the washing machine engine eloquently described is the manufacturing process of the installation, which, using the natural force of the wind, can supply energy to the same country house or garage. Some suggest using this generator to power the ski lift. In general, plug in your imagination and you will also find a couple of ways.
In conclusion, we note that the manufacture of a homemade generator is associated with certain difficulties. The main difficulty is gluing magnets to create a rotor. But you can go the simple way - order a ready-made magnetic rotor. In this case, the generator will cost you 200 rubles more, but you will save a lot of time.
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Washing machine repair
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Dishwasher
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