Electric motor - Revision history

Jmdonev: 1 revision imported

2018-05-18T22:53:08Z

1 revision imported

← Older revision	Revision as of 22:53, 18 May 2018
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Jmdonev at 20:15, 11 May 2018

2018-05-11T20:15:13Z

← Older revision		Revision as of 20:15, 11 May 2018
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	[[Category:Done ~~2015~~-06-11]]		[[Category:Done 2018-05-18]]
	[[File:Universalmotor_3.JPG\|300px\|thumb\|Figure 1. An electric motor from an old vacuum cleaner.<ref>Wikimedia Commons [Online], Available: http://upload.wikimedia.org/wikipedia/commons/c/cc/Universalmotor_3.JPG</ref>]]		[[File:Universalmotor_3.JPG\|300px\|thumb\|Figure 1. An electric motor from an old vacuum cleaner.<ref>Wikimedia Commons [Online], Available: http://upload.wikimedia.org/wikipedia/commons/c/cc/Universalmotor_3.JPG</ref>]]
	[[File:Electric_Motor_Rotor.jpg\|300px\|thumb\|Figure 2. An electric rotor.<ref>Wikimedia Commons [Online], Available: http://upload.wikimedia.org/wikipedia/commons/8/80/Electric_Motor_Rotor.jpg</ref>]]		[[File:Electric_Motor_Rotor.jpg\|300px\|thumb\|Figure 2. An electric rotor.<ref>Wikimedia Commons [Online], Available: http://upload.wikimedia.org/wikipedia/commons/8/80/Electric_Motor_Rotor.jpg</ref>]]
	<onlyinclude>An '''electric motor''' is a device used to convert [[electricity]] into [[work\|mechanical energy]] ~~and because of this, is the opposite of~~ an [[electric generator]].</onlyinclude> They operate using principles of [[electromagnetic force\|electromagnetism]], which shows that a [[force]] is applied when a [[current]] is present in a [[magnetic field]]. This force creates a [[torque]] on a loop of wire present in the magnetic field, which causes the motor to spin and perform useful work. Motors are used in a wide range of applications, such as fans, power tools, [[appliance]]s, [[electric vehicle]]s, and [[hybrid car]]s.		<onlyinclude>An '''electric motor''' is a device used to convert [[electricity]] into [[work\|mechanical energy]]—opposite to an [[electric generator]].</onlyinclude> They operate using principles of [[electromagnetic force\|electromagnetism]], which shows that a [[force]] is applied when an [[electric current]] is present in a [[magnetic field]]. This force creates a [[torque]] on a loop of wire present in the magnetic field, which causes the motor to spin and perform useful work. Motors are used in a wide range of applications, such as fans, power tools, [[appliance]]s, [[electric vehicle]]s, and [[hybrid car]]s.

	==How they work==		==How they work==
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	The main parts of a DC motor include:<ref name=yea>Explain that stuff, ''Electric motors'' [Online], Available: http://www.explainthatstuff.com/electricmotors.html</ref>		The main parts of a DC motor include:<ref name=yea>Explain that stuff, ''Electric motors'' [Online], Available: http://www.explainthatstuff.com/electricmotors.html</ref>

	* '''Stator'''- The stationary part of the motor, specifically the [[magnet]]. [[Magnet#Types of Magnets\|Electromagnets]] are often used in order to provide more power.		* '''Stator:''' The stationary part of the motor, specifically the [[magnet]]. [[Magnet#Types of Magnets\|Electromagnets]] are often used in order to provide more power.

	* '''Rotor'''- The coil that is mounted on an axle and spins at high speeds, providing rotational mechanical energy to the system.		* '''Rotor:''' The coil that is mounted on an axle and spins at high speeds, providing rotational mechanical energy to the system.

	* '''Commutator'''- This component is key in DC motors, and can be seen in Figure 3 and 4. Without it, the rotor would not be able to spin continuously due to opposing forces created by the changing current. The commutator allows the rotor to spin by reversing the current each time the coil does a half turn.		* '''Commutator:''' This component is key in DC motors, and can be seen in Figure 3 and 4. Without it, the rotor would not be able to spin continuously due to opposing forces created by the changing current. The commutator allows the rotor to spin by reversing the current each time the coil does a half turn.

	* '''Power source'''- Supplies an [[electromotive force]] which causes current to flow in the system.		* '''Power source:''' Supplies an [[electromotive force]] which causes current to flow in the system.

	* '''Brushes'''- These are connected to the terminals of the power source, ~~and allow~~ [[electric power]] to flow into the commutator.		* '''Brushes:''' These are connected to the terminals of the power source, allowing [[electric power]] to flow into the commutator.

	<gallery caption="DC Motor" widths="350px" heights="350px" >		<gallery caption="DC Motor" widths="350px" heights="350px" >

J.williams: 1 revision imported

2015-08-26T21:31:01Z

1 revision imported

← Older revision	Revision as of 21:31, 26 August 2015
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J.williams at 16:53, 12 August 2015

2015-08-12T16:53:10Z

New page

[[category:371 topics]]
[[category:301 topics]]
[[Category:Done 2015-06-11]]
[[File:Universalmotor_3.JPG|300px|thumb|Figure 1. An electric motor from an old vacuum cleaner.<ref>Wikimedia Commons [Online], Available: http://upload.wikimedia.org/wikipedia/commons/c/cc/Universalmotor_3.JPG</ref>]]
[[File:Electric_Motor_Rotor.jpg|300px|thumb|Figure 2. An electric rotor.<ref>Wikimedia Commons [Online], Available: http://upload.wikimedia.org/wikipedia/commons/8/80/Electric_Motor_Rotor.jpg</ref>]]
<onlyinclude>An '''electric motor''' is a device used to convert [[electricity]] into [[work|mechanical energy]] and because of this, is the opposite of an [[electric generator]].</onlyinclude> They operate using principles of [[electromagnetic force|electromagnetism]], which shows that a [[force]] is applied when a [[current]] is present in a [[magnetic field]]. This force creates a [[torque]] on a loop of wire present in the magnetic field, which causes the motor to spin and perform useful work. Motors are used in a wide range of applications, such as fans, power tools, [[appliance]]s, [[electric vehicle]]s, and [[hybrid car]]s.

==How they work==

Motors have many different working parts in order for them to continually rotate, providing [[power]] as needed. Motors can run off of [[direct current]] (DC) or [[alternating current]] (AC), and both have their benefits and drawbacks. For the purpose of this article a DC motor will be analyzed, to read about AC motors, [http://www.explainthatstuff.com/induction-motors.html click here].

The main parts of a DC motor include:<ref name=yea>Explain that stuff, ''Electric motors'' [Online], Available: http://www.explainthatstuff.com/electricmotors.html</ref>

* '''Stator'''- The stationary part of the motor, specifically the [[magnet]]. [[Magnet#Types of Magnets|Electromagnets]] are often used in order to provide more power.

* '''Rotor'''- The coil that is mounted on an axle and spins at high speeds, providing rotational mechanical energy to the system.

* '''Commutator'''- This component is key in DC motors, and can be seen in Figure 3 and 4. Without it, the rotor would not be able to spin continuously due to opposing forces created by the changing current. The commutator allows the rotor to spin by reversing the current each time the coil does a half turn.

* '''Power source'''- Supplies an [[electromotive force]] which causes current to flow in the system.

* '''Brushes'''- These are connected to the terminals of the power source, and allow [[electric power]] to flow into the commutator.

<gallery caption="DC Motor" widths="350px" heights="350px" >
File:how-electric-motor-works.png|Figure 3: A basic setup of a DC motor.<ref name=yea/>
File:how-electric-motor-works-animation.gif|Figure 4: An animation of the motor in action. The commutator rotates in order for the rotor to spin continuously.<ref name=yea/>
</gallery>

==References==
{{reflist}}
[[Category:Uploaded]]