• Bladeless Fan

    With the onset of heat, we remember the fans, the most simple and affordable inventions of man to refresh the air. The classic design of the fan consists of a slider, on the shaft of which the impeller is fixed with many blades. During fan operation, air is sucked from the back of the fan, and passing through the blades with an increased speed is pushed forward, creating the effect of cooling and freshness. A conventional fan has several disadvantages: noise and vibration from blades that collect dust and air pollution. In order to clean them, it is necessary to remove the protective grille. The speed of such fans is regulated in only a few modes, and it is difficult to adjust the blowing angle at all. The alternative device offered by us is devoid of these disadvantages. This development was invented by the engineers of the company Dyson, presenting an almost revolutionary solution in the field of air ventilation.Thanks to them, the world has learned what a flapless fan is. And today we will collect it at home.
    Bladeless fan

    The principle of operation of a bladeless fan

    The main difference between a bladeless fan and a normal fan is the changed direction of the pushed air flow. This is achieved due to the fact that the engine with the impeller is placed vertically and hidden in the base, which is equipped with grilles. Through them, air flows into the frame, located above the base and provided with slots along the perimeter for ventilation.

    Materials, tools for a flawless fan

    To assemble this ultra modern household gadget, we will need the following materials:
    • PVC pipes of diameter 150, 125, 90 mm;
    • Quick-drying glue for plastics, such as superglue;
    • A small piece of plexiglass or blue plexiglass;
    • Server cooler YW880, frame width-60 mm;
    • White spray paint, 1 cylinder;
    • A piece of soft metal mesh with cells of about 10 mm;
    • Rheostatic speed control board, toggle switch;
    • Solder, Luce termokembriki,self-tapping screws
    • A piece of LED tape, length is about 50 cm;
    • 12V / 2A power adapter
    • Insulating tape.
    From the tools we will need:
    • Miter saw or Bulgarian (LBM) for trimming PVC pipes ;
    • Jigsaw for trimming curved lines;
    • Drill or screwdriver with a crown cutter 50-60 mm;
    • A set of drills of different diameters;
    • Soldering iron, screwdriver, scissors, pliers, hot melt glue gun;
    • Paint knife.

    Order of work

    Preparing plastic pipes

    Take about sharp 150mm diameter PVC pipe and its tortsuem aligning edge. We mark a fragment about 100 mm long, and make a cut with a miter saw or a bulgarian (USM).
    Bladeless fan
    Bladeless fan
    Bladeless fan
    The edges of all the pipes must be treated with sandpaper to avoid burrs, irregularities and improve the fit of the edges for adhesive bonding.
    Bezlopastny fan
    The next step is the selection of a plastic container, which will fit tightly on our piece of pipe.With a paint knife we ​​cut off the bottom of it, and with the help of superglue we fasten it on top of the socket.
    Bladeless fan
    Bladeless fan
    Bladeless fan
    Then we take a pipe with a diameter of 125mm, and cut off a 90mm long pipe from it.
    Bladeless fan
    Bladeless fan
    Bladeless fan
    Next will be a pipe with a diameter of 90mm, which we also cut off, like the previous two. This is the base of our fan. The length of the segment - 120-130mm.
    Bladeless fan
    Basic plastic parts are ready. You can check how they will be combined with each other, putting them in their places.
    Bladeless fan
    Bladeless fan
    Bladelessfan
    The frame of the fan sits perpendicularly to the base, so the 90mm tube must be slightly prepared by cutting its edge according to the frame circumference. Mark it with a pencil, you can cut it with a jigsaw or the same grinder.
     Bladeless fan
     Bladeless fan
    Unevenness of the curvilinear cut can be smoothed with sandpaper, at the same time burrs.
    Bladeless fan
    Using a crown cutter with a diameter of 50-60mm, using a drill or a screwdriver, we make a through hole in the middle of the largest nozzle. It will allow air to flow through the base into our frame. On superglue we fix our base.
    Bladeless fan
    Bladeless fan
    In order to close the fan frame, which consists of two pieces of pipe of different diameter, a plug is attached to the smaller one at one end. We make it from a sheet of Plexiglas or Plexiglas blue. Bladeless fan
    Having marked out a large circle first and then a smaller one, we cut off the ring of the cap.
    Bladeless fan
    Now you can put it on superglue to the smaller frame nipple.
    Bladeless fan
    Using white spray paint and electrical tape as a masking tape for plexiglass, paint the plastic parts of our fan.
    Bladeless fan
    Blade Fan
    Bezlopastny fan After the paint has dried, you can glue the stripe of the LED strip to a larger pipe on the side of the plug. Do not forget to immediately remove the contacts for the LED backlight, and put them in the base.
    Blade Fan
    Bezlopastny fan We fix both nipples of our frame on the superglue.
    Bladeless fan

    Electrical part

    We begin to prepare the electric filling of our fan by decoupling the contacts of the cooler. It is better to take the wires with a margin so that it is convenient to work with them when connecting a control board and a toggle switch. posts / 2018-02 / medium / 1518668008_31.jpg "style =" max-width: 100%; " alt="Bladeless fan">
    Bladeless fan
    Bladeless fan
    You can make mounting holes with a soldering iron to securely fix the cooler in the base case.
    Bladeless fan
    Fasten the cooler and ventilate two vents in the base opposite each other. This can be done with the same crown cutter.
    Bladeless fan
    Bladeless fan
    Bladeless fan
    Cover these openings with fragments of metal mesh previously cut to size.
    Bladeless fan
    Glue fragments of the mesh with a hot-melt gun.
    Bladeless fan
    Unsolder the contacts of the toggle switch and the power jacks. Bare contacts are closed with shrinking fluids by heating them with a lighter.
    Bladeless fan
    Bladeless fan
    Now you can make holes for the toggle switch and power jacks, and fix them on the case of the fan base.
    Bladeless fan
    Bladeless fan
    Bladeless fan
    For a rheostatic switching of the fan speed, the author ordered a ready-made board with the details that he had gone through. Today it is a more affordable option, although such a fee can be bought in the store of electronic trivia in finished form.
    Bladeless fan
    We connect our control board by soldering the contacts and fasten it by fixing the rheostat on the wall of the housing. We supplement fasteners with hot melt.
    Bladeless fan
    Bladeless fan
    Bezlopastny fan
    Our fan of the future is almost ready. All that remains is to fasten the bottom of the plexiglass residues, and glue the rubber thrust bearings for greater stability.
    Bladeless fan
    Bladeless fan
    Bladeless fan
    The fan is powered by a conventional adapter with a suitable end connector. The output voltage and current ratings must match the selected cooler.
    Bladeless fan
    Bladeless fan
    It's time to turn on the fan miracle and check it in action.
    Bladeless fan
    Bladeless fan
    The aerodynamic frame of this device distributes the air flow evenly, accelerating them almost 15 times. Such an advanced fan will help to cope with the heat much faster and more efficiently than a regular household. And the soft glow of the backlight will create a pleasant cool atmosphere on a hot summer day.

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