What is a mechanical commutator

Update:02 Mar 2021

The commutator is used on a DC motor. When the motor rotates, the winding coil will pass the same directional magnetic field twice per revolution, which will cause the induced current in the winding to change direction. The commutator is the direction of the output current. Constant (consistent) device. The carbon brush and the commutator (commutator) are used to make the direction of the output current constant (consistent, so as to form a rotating moment.

Motor commutators (commutators) are hooked and welded (direct and insert welded):

The hook type is used for small motors or micro motors because the current is small and the assembly is convenient.

Welding type is divided into direct welding and embedded welding. The use of welding type is mainly due to the large motor current. If the hook connection is used, it is easy to ablate the rotor (the DC motor is called the armature).

The embedded welding is probably a ruled type, in which the coil is embedded in the groove of the commutator and then welded. The advantage of this type of soldering is that the coil is well connected to the commutator and can withstand large currents.

Direct welding is that the commutator has some protruding terminals and the joints of the coils are directly welded together. This kind of welding is better than the hook type, but it is second to the embedded soldering. In short, the direct soldering connection is Between those two.

What is the specific method, which depends on the requirements of the production design. Performance and price need not be said, from the hook type, the direct welding type, the embedded welding type to sort, the performance is of course better and better, and the manufacturing cost is higher.

The commutator motor is a DC motor that transmits electrical energy through a commutator and is deflected by an angle by a commutator.

1. When the motor rotates, the relevant winding coil will pass the same orientation magnetic field twice every revolution, so that the induced current in the winding will change direction. The role of the commutator is to make the output current direction unchanged.

2.The generator includes an electromagnet that can rotate rapidly between two or more magnetic fields. When the two magnetic fields are interdigitated, electricity is generated and is led out of the generator by wires. The electronic engineer obtains alternating current (AC) or direct current (DC) according to the way the generator is wound and the arrangement of the magnets. Most of the generators generate alternating current, which is easier to transmit long distances from the transmission line than direct current.

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