This is a concept for a DC motor which I came up with at least 5 years ago now. Well I've tweaked it a little bit since then but it's close to the
original. I've held off showing anyone this design in the hopes that I might be able to patent it or something, but then I realized I'm never going to
get around to that.
So I may as well share this in case it is something we haven't thought of before. I looked around a few patent databases and
couldn't find anything similar, but I'm clearly no expert at finding patents.
Don't get me wrong, I will still take action if I find anyone trying to steal this idea and use it without my permission (assuming it isn't already
the intellectual property of someone else). Let this post and the date-time stamp be a proof of when I first presented this idea publicly. ATS may be
an odd place to post something like this, but we have a lot of great minds here who are very knowledgeable when it comes to science and physics, not
to mention this is one of the few forums I visit which has a science section.
So without further blab, here is the schematic:
- The hollow shaft / rotor (the black lines inside it are wires).
- Coils wrapped around what might be called stators (attached to the rotor).
- Permanent magnets, the rotor goes through holes in these magnets.
- The positive and negative battery terminals / inputs.
- Some sort of light and durable metal or plastic casing / mounting.
- Wires coming from the top of the coils and returning into the shaft.
- This is where the magnets are fastened securely to the casing.
- Load bearing end of the shaft / rotor (a cog attached in this case).
- The commutator, ideally some sort of fancy brushless solution.
When I first started to design a DC electric motor the first thing I did was think about the ideal properties of an electric motor. Following the
right-hand-thumb-rule or what ever they call it, we can determine the nature and strength of the forces generated when we place a wire with flowing
current near a magnet. One of the most efficient ways to maximize the force generated when you place a magnet near flowing current is to twist the
wire into a coil shape, so that is how I tried to design my motor.
The blue arrows in the diagram represent the direction of the magnetic field, and the green arrows represent the direction of the electric current /
flow of electrons through the wire. The current flows through the coils from the terminals and they are set up in a parallel circuit so each coil gets
the same amount of current. If you implement the right-hand-thumb-rule on this diagram you should find that each coil in the top row is pushed in an
opposite direction from the ones below them, causing a rotation. The commutator keeps it going.
It is fairly simple design but it's unusual compared to most diagrams of a DC motor. The simple yet novel design follows the most important rules in
a neat way. My thought is that this type of design would probably produce a lot of torque and would be best suited to heavy duty uses where large
permanent magnets are used. I call it the "Tri-Mag" DC Motor because it has 3 permanent magnets but really you could add more magnets and coils. It
should get exponentially more efficient with more magnets.
NOTE: The wires are shown exiting the coils and travelling into the shaft to the side of the coil. This is mainly for demonstrational purposes as it
would seem more practical to send the wire back down the center of the coil, especially if we made the core from something which will insulate the
wire from magnetic fields, because after all it is travelling in the opposite direction and will create a force which will act against the desired
motion of the coil.
edit on 25/1/2013 by ChaoticOrder because: (no reason given)