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Main content
Current time:0:00Total duration:3:19

Video transcript

okay so we've got spouts motor here we're gonna go inside of this spouts motor and take a look at what's inside it and how it works but first let's take a look at the outside so we've got a piece of stamp steel this is cold rolled steel it's it's coated or plated in zinc to protect it from rusting then we've got a plastic outer housing on this side and it has two copper contacts the power goes in through this through one of the contacts and out through the other one depending on the way the power is flowing through the circuit then we've got a a axle here and this is a made out of steel and it's chrome-plated on the the end here there is a brass bearing that allows the motor to spin at a good speed so let's see if we can loosen this there's a couple Clips here on the sides that you can peel back bend this one back a little bit okay there we go so on the inside the the two tabs connect to these two pieces of metal here and those are called US brushes these are copper brushes and they brush up against and conduct the electricity down to this guy which is called the commutator the commutator commutes the power from the brushes to the field windings these guys right here and inside of the field windings you can see these are solid core field there's a iron soft iron core and the soft iron core makes the magnetic field more it's it makes it more powerful so it's more effective than if you just had an air core and these things work just like your nail with a copper coil wound around it they create an electromagnetic field and so the power comes in flows through the coil is energized and creates on an electromagnet which pushes against the magnet inside of the housing here so there's a North Pole and a South Pole magnet and so the power comes in pushes against this magnet rotates and as it rotates the field flips and pushes against the South Pole magnet and then as it rotates again the field flips again and it pushes again the north pole magnet and that's why you get the the rotation and the reason why that that flipping occurs is because of something called the right hand rule the power is traveling in one direction and so the field is moving you take your thumb and that's the direction of the electricity flow and then the fingers of the direction of the field so when the power is going in the fields moving in one direction when the power is coming out the fields moving in another direction so that's why you need a North Pole and a South Pole to keep the motor rotating so in any case that's basically how the motor inside of spout works and in order to reverse the motor direction all you have to do is change the positive and negative on these little connections here so you take the positive side from the battery and connect it here and the negative and connect it here or switch it and that's going to make the motor back up and we'll see that in the details on the spouts videos