презинтация

Have executed: Sharov Vlad, Tursunov Sergey, pupils 10 classes

The energy-effective electric motor

The work purpose: working out and an experimental research of the energy-effective electric motor on photo cells

Object of research: energy-effective electric drives

Object of research: electric motor rotor on a magnetic pillow

Research hypothesisReduction of the moment of force of the resistance operating on a rotor will allow to use low-power power supplies, including photo cells with the small area of a surface

Research problems1) the analysis of ways of reduction of force

of the resistance operating on a rotor of the electric motor at rotation

2) the analysis of dynamic and power characteristics of a rotor of the electric motor on a magnetic pillow

3) an estimation of possibility of application of alternative energy sources for creation of the rotary moment in the electric motor

4) project estimation of cost

Technical problems

Magnetic pillow and cargo ability of a rotor

The maximum weight of loading 90 g + 0,196 g

Research of dynamics of a rotor

Force of a current in a rotor winding

Estimation of power parameters of a rotor

Dependence of force of a current in a winding from power of a source

ConclusionsApplication of a magnetic pillow in an engine design

will allow to use sources of electric pressure of smaller power, including photo cells with the small area of a surface

Decrease in starting value of force of a current in a rotor winding can be reached at the expense of application niodim magnets

The offered model of the electric motor allows to exclude sliding contacts (brushes) from a design, that considerably will increase service life

Model lack is strictly horizontal working position of the engine that it is possible to eliminate application of magnetic bearings

Estimation of average cost of the electric motor

The name number/volume Approximate cost

Niodim ring magnets 6 pieces 12$

Constant Niodim a magnet

inductor 1 piece 1$

Copper wire for a rotor 1 piece 1$

Photo cells for a rotor 4 pieces 8$

Aluminium core for a rotor shaft 1 piece 3$

Having passed under this reference it is possible to look video of work of the engine and its practical application:

https://sites.google.com/site/theenergoeffectiveelectricm/the-practical-importance