Main function of DC motor structure of motor terminal box

The structure of the DC motor is composed of two parts: stator and rotor. The static part of the DC motor is called the stator. The main function of the stator is to produce a magnetic field, which is composed of a machine base, a main magnetic pole, a Huan Xiangji, an end cover, a bearing and an electric brush device. Running is that part of the rotor, the main function is to generate the electromagnetic torque and the induced electromotive force of DC motor is the hub of energy conversion, so it is usually called the armature, composed of a rotating shaft, the armature core and armature winding and commutator and fan etc..

The armature core of the motor terminal box is the main part of the main magnetic circuit.

In general, the armature core is made up of a 0.5mm thick silicon steel sheet, which is used to reduce the eddy current loss and the hysteresis loss. The laminated core is fixed on the rotating shaft or the rotor bracket. The outer circle of the iron core is provided with an armature slot.

Shaft

Rotation of the rotor from the support role, the need for a certain degree of mechanical strength and stiffness, generally with round steel processing.

commutator

In the DC motor, the commutator is equipped with an electric brush, which can convert the applied DC power to the alternating current in the armature coil,

The direction of the electromagnetic torque is constant; in the direct current generator, the commutator is matched with an electric brush, and the alternating electromotive force generated in the armature coil can be converted into a DC electromotive force which is drawn on the positive and negative brush. The commutator is a cylinder composed of a plurality of commutator pieces, which are insulated by a mica sheet.

Armature winding

Armature winding is to produce electromagnetic torque and induction electromotive force, DC motor is the key component of energy conversion, so called armature. It is composed of many coils (hereinafter called components) according to a certain rule is connected to the coil with high strength enameled wire or glass fiber enameled copper wire wound into a coil, different coil side is divided into two layers embedded in the armature slot, between coil coil and core layer between the two sides and both upper and lower must be properly insulated. In order to prevent the centrifugal force from being thrown out of the slot, the slot is fixed with a slot wedge. The end part of the coil extending out of the groove is made of a thermosetting glass tape.