Many of the users of the electric lawn mowers would fancy at the neat manner in which they work without taking time to go deep into the details of how the appliance works. While electric lawn mower motors may not be within sight, the role they play may be bigger in essence than may be assumed by many.
An electric lawn mower motor, like the other motors uses the principle of magnetism and movement in ensuring that the much needed movement, especially of the mower blades is achieved.
This is achieved by passing the current from one end of the electric motor rod, which comes from the electric source and converting it into the kinetic energy at the next end giving some propeller action.
How the motor works
Cordless electric lawn mowers use an alternating current (AC) while the corded ones are known for using the direct current (DC). The AC current is virtually electric power emanating from a battery source and is known this way for its manner of action, while the DC is an electric current from an electric power grid
Most of the DC propelled motors are made in the form of different strands of wires at the center of which are a metal ring (a commutator) divided into two halves. The role of each halve is to ensure that the electric current passing through the coil of wires is reverse at any instance it passes. In simple terms, the electric coil rotates each time at half turn and is reversed.
Because of the attachment which the coil has with each end of the commutator, there is a connection between the current and the power source, in this case a cordless source. The feeding of the current from the commutator to the loose wire strands, called the brushes makes the whole difference. As the brushes brush the commutator, it creates a situation of continuity which is the principle of commutation to pass the current back and forth. The whole of this system is known as a rotor.
The force of each turn on the motor is what usually determines the torque in most of the electric lawn mower power supply scenarios. The torque can be increased at will provide the field of commutation has been created. This is best done using a more powerful magnetic force and thicker wire strands than the one previously used on the coil.
However, the use of AC motors is usually different as it tries to create a rotating magnetic field which then ensures that the electric current is continuous. It is worth noting that diverse electric lawn mowers use different designs of motors which in turn make them to have different efficiency levels.
What role does the electric lawn mower motor play?
It drives the lawn mower blade! Looking at all these, one is likely to appreciate the fact that the DC and the AC powered electric lawn mower motors have different efficiency levels. Though the AC powered electric lawn mower motor may work just as good, it may not be comparable to the power of the DC electric lawn mower motors.
It is for this reason that the corded electric lawn mowers are considered to be better used in situations where the grass is a bit taller because of the power (torque) they have on the blades. The contrast is also clear, most of the cordless electric lawn mowers are recommended to be used in areas where the grass is shorter.
Additionally, the motor power is found to influence the area which the lawn mower covers as it mows. Most of the corded mowers, in spite of the several other limiting factors are better off in larger lawn when we compare them to the cordless electric lawn mowers.
The weaker the motor, the less time it may take in its operational lifespan and that is common with the cordless lawn mowers whose lifespan is usually shorter, especially if you consider the diverse user reviews talking about them. In addition to the fact that the AC motors run for shorter periods before needing rest, they are not durable as well.
In contrast, the corded electric lawn mower torque is usually higher and is bound to work for longer without the motor breaking down, giving the user that ultimate satisfaction of the mowing process. These are also in most cases known to give a better account of them at the end of it all in terms of neatness.
The electric lawn mower motor which in most cases is a tiny object and can be easily assumed, determines how well you are bound to find satisfaction with your electric lawn mower.
At purchase, you need to check carefully on the properties of the electric lawn mower, but above all check on the type of electric lawn mower you are buying. Some electric lawn mowers are fitted with stronger motor, not by default; it is by choice though most users understand not!