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LOW CONSUMPTION ELECTRIC MOTOR & DC GENERATOR

low consumption motor using small solar panel (also inside office calculator) and DC GENERATOR

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Low consumption motorObjective : to build an electric motor operated under low power (voltage and current) , powered by a single small solar panel (also inside office calculator) which can operate in the artificial light and which can be transformed in a small electric dc generator.VIDEO 1. : TEST 1 "Low consumption motor"https://www.youtube.com/watch?v=Dh079n4TYn0Neodymium sphere 19 mm diameter - the key componentMaterial NdFeB Shape, Sphere Diameter 19 mm Tolerance +/- 0,1 mm, Coating Chrome-plated (Ni-Cu-Ni-Cr), Manufacturing method sintered Magnetisation N38 Strength approx. 4,9 kg (approx. 48,1 N), Max. working temperature 80°C, Weight 27,2943 g, Curie temperature 310 °C, Residual magnetism Br 12200-12600 G, 1.22-1.26 T, Coercive field strength bHc 10.8-11.5 kOe, 860-915 kA/m

Low consumption motor

Objective : to build an electric motor operated under low power (voltage and current) , powered by a single small solar panel which can operate in the artificial light and which can be transformed in a small electric dc generator.

VIDEO 1. : TEST 1 "Low consumption motor"

Neodymium sphere 19 mm diameter - the key component

Material NdFeB Shape, Sphere Diameter 19 mm Tolerance +/- 0,1 mm, Coating Chrome-plated (Ni-Cu-Ni-Cr), Manufacturing method sintered Magnetisation N38 Strength approx. 4,9 kg (approx. 48,1 N), Max. working temperature 80°C, Weight 27,2943 g, Curie temperature 310 °C, Residual magnetism Br 12200-12600 G, 1.22-1.26 T, Coercive field strength bHc 10.8-11.5 kOe, 860-915 kA/m, Coercive field strength iHc ≥12 kOe, ≥955 kA/m, Energy product (BxH)max 36-38 MGOe, 287-303 kJ/m³ 19 mm , Pollutant-free according to RoHS Directive 2011/65/EU._ _

Important : the metal cases with screws should be positioned : one to the N magnetic pole of the neodymium sphere 19 mm diameter and the second one on the S magnetic pole of the sphere. ( In the presented Video 1. , at the first test, the metal cases weren't properly placed on the sphere and the motor doesn't reached the full speed )

In the upper side of the sphere there is no friction between the screw and the iron - see the TEST 2

VIDEO 2. : low consumption motor TEST 2 

Input DC power - mini solar panel -VIMUN SC-3012-2A, 29.44mm×11.6mm×1.1mm, 4 cells

There are a total of four electrical components. A small solar panel ( VIMUN SC-3012-2A, 29.44mm×11.6mm×1.1mm, 4 cells. The following specifications were listed, 2.0 Vos, 9.0 UAsc, 1.5 Vop, at 200Lux), a 470 uF 10 V electrolytic capacitor, a coil iron less with thin copper wire and a small circuit board with a black blob on it.

Under this blob is the integrated circuit chip. It provides the correctly timed pulses to the coil and magnet combination. The integrated circuit is more or less just a low frequency oscillator which runs at approximately 1 Hz most likely driving an open drain NMOS switch ( output on pin 3 ) which periodically connects the coil to the - terminal. The circuit pulses the 18 mH coil causing the neodymium sphere magnet spinning.

electrical components used (excepting the coil iron less ) - from a solar powered flapping toy.

The presented low voltage electric motor can be transformed in a DC generator by adding a second coil iron - less, a rectifier (Ac to DC) and a led :

The rectifier used in this test can be found in a old phone charger.

IMPORTANT NOTE : if you will connect directly the led to the solar panel, the led will NOT light , due to the low voltage output of the solar panel.

**The second coil used can be found in a syncronous motor 230 V (microwave turntable motor) ** **

Important :

without using the rectifier (AC to DC ) results AC voltage.

VIDEO 2. : TEST 1 "DC GENERATOR. Sphere generator" - DC voltage

In the presented video the "led " is from a printer scanner light (DC voltage).

spere motor circuit 2.jpg

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solar toys.jpg

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Sphere motor - low input power.jpg

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sphere motor circuit.jpg

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low voltage motor - neodymium magnet sphere.jpg

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  • 1
    HOW TO MAKE LOW CONSUMPTION ELECTRIC MOTOR AND TRANSFORM IT IN A DC GENERATOR

    TEST 1 :

     TEST 2

    DC GENERATOR : 

    Materials : 

    1. VIMUN SC-3012-2A, 29.44mm×11.6mm×1.1mm, 4 cells + voltage rectifier (inside a solar powered flapping toy) 

    2. neodymium sphere 19 mm diameter

    (Material NdFeB Shape Sphere Diameter 19 mm Tolerance +/- 0,1 mm Coating Chrome-plated (Ni-Cu-Ni-Cr) Manufacturing method sintered Magnetisation N38 Strength approx. 4,9 kg (approx. 48,1 N) Max. working temperature 80°C Weight 27,2943 g Curie temperature 310 °C Residual magnetism Br 12200-12600 G, 1.22-1.26 T Coercive field strength bHc 10.8-11.5 kOe, 860-915 kA/m Coercive field strength iHc ≥12 kOe, ≥955 kA/m Energy product (BxH)max 36-38 MGOe, 287-303 kJ/m³ 19 mm Pollutant-free according to RoHS Directive 2011/65/EU.)

    3. iron head ( MAGNETIC HEX HEAD SCREWDRIVER )

    4. plastic holder

    5. glue

    6. wires

    7. two coils iron less with thin wire (one coilwith thin wire from an old ring bell and the second one ("caption coil " inside the microwave syncronous motor turntable 230 V)

    8. led ( inside a printer scanner light ) or a normal led

    9. two metal cases with holes ( 2 X Neodymium Pot Magnet with Screw Thread )

    10. two screws

    11. multimeter ( to identify the polarity - DC voltage for the conection between the led and the rectifier (AC to DC)

    12. AC to DC rectifier - inside old phone charger ( Important : if you will not use the rectifier you will obtain AC voltage, and the led blinking)

    Operations :

    1. remove the coil with thin copper wire from the old ring bell.

    2. remove the electrical circuit from the powered flapping toy and replace the original air core ( coil ) with the old bell ring coil.

    3.remove the neodymium magnets and the original screws from the pot ( refering at2 X Neodymium Pot Magnet with Screw Thread ) , you will obtain two metal cases with holes in the middle.

    4. insert the new screws in the metal cases ( the small one and the long one ) and fix them ( you can use a piece of rubber from a conductor/wire).

    5.fix the metal cases with screws (magnetic catch) on the neodymium sphere 19 mm diameter

    Important fix them on the magnetic poles ( N and S ) for mmaximum high speed motor and align the metal cases for a suitable rotation of the sphere (eliminating oscilations as much as possible)

    6. build the plastic holder and fix the sphere (with the long screw up ) by gluing the iron head

    Important : there is no friction between the long screw and the MAGNETIC HEX HEAD SCREWDRIVER (iron head) - the long screw placed on the sphere is not touching the iron head !- see the second movie published in this section ( low consumption electric motor test 2 )

    Use glass surface - small screw contact !!

    7. place the coil (connected to the electronic circuit ) close to the spnere. The sphere will start oscilate and after will start spinning.

    BUILD THE DC GENERATOR :

    1. remove the led from the printer scanner light

    2. place wires on pin 1 and 4 (refering to the led) you will obtain green light.

    3. remove the rectifier (AC to DC) from the old charger

    4. remove the coil iron-les from the syncronous motor 230 v (microwave turntable motor )

    5. connect the coil iron - less through wires to the voltage rectifier "IN " - no polarity

    6. identify the polarity of the rectifier ( "OUT" ) and the led (refering to + and -) using a multimeter on voltage scale.

    7. connect the led to the rectifier output respecting the polarity ( +and -)

    results : Dc voltage

    8. THE GENERATOR IS READY aproach the coil as much as possible to the spinning sphere without touch it!

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