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.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.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.Then we take a pipe with a diameter of 125mm, and cut off a 90mm long pipe from it.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.Basic plastic parts are ready. You can check how they will be combined with each other, putting them in their places.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.Unevenness of the curvilinear cut can be smoothed with sandpaper, at the same time burrs.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.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.Having marked out a large circle first and then a smaller one, we cut off the ring of the cap.
The principle of operation of a bladeless fanThe 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 fanTo 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.
- 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 pipesTake 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).
Electrical partWe 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">
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