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What Your Appliance Will Be Running On In The Future
Look around your house and you are likely to find a large number of electric motors. There is probably one in every appliance, from the hand mixers in the kitchen to the lawn mower fixing up the front yard. These days, electric motors are found in just about every room of the house.
There are three commercially available electric motors. The most common is the Universal, or Brush, motor. With high torque and variable speed, they work well for vacuum cleaners or drills. Induction motors have no brushes and run silently. They are single-speed and very durable and are used in pumps or refrigerators; anywhere you need constant pressure. The new motors on the market have all of these qualities: they operate at variable speeds, have high torque and they are silent and reliable.
We are familiar with the presence of micro controllers in control panels, like the dashboard of our car. We are now starting to see them in the motors that these panels control, as well. As we find it more and more important to work within the ecology of the planet, it becomes increasingly important that our motors are efficient, quiet and simple. The new electric motors provide all of that.
Whether you are running a food processor or a Poulan chainsaw, variable speed is what you need for optimum efficiency. Speed control can boost efficiency, in some cases by as much as 30 percent. These smaller motors also allow manufacturers to charge less for their products.
For large motors, like those used in washing machines, the microcontrollers are not a viable solution. The controllers are just too expensive. Instead, these motors are built with the new permanent magnet technology. They run at variable speeds, they run quietly, they don't produce much waste heat and they save energy. They save water, too!
It is easy to see why permanent magnet motors are gaining in popularity. They also use less raw materials. Less copper and steel mean lower cost and lower costs mean lower prices. Not only is the market price not as influenced by the price of commodities, but as their popularity grows, these motors will get less and less expensive. They are already used to vibrate cell phones and power cars.
Of course, these wonders won't work in every appliance. You won't find one in your Homelite chainsaw any time soon, for example. But you will start seeing them more and more in refrigerators, drills, washing machines, pumps. With the high torque of traditional motors combined with the silent dependability of an induction motor, we have a perfect match.
Tamiya DF-03 Brushless speed runs 96 km/h!
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