What is the difference between the DC motor and the AC motor of the soymilk machine?

The DC motor is a magnetic field that does not move, and the conductor moves in the magnetic field; AC motors are rotating motion in a magnetic field, while the conductor is not moving.

DC motors are divided into stator windings and rotor windings. The stator windings generate a magnetic field. When direct current is on.

The stator windings generate a magnetic field of fixed polarity. The rotor is powered by direct current in a magnetic field. As a result, the rotor is rotated by force in the magnetic field.

The structure of DC motors is complex. High cost.

AC motors are divided into stator windings and rotor conductors. The rotor conductor is shaped like a squirrel cage, with silicon steel sheets between the conductor and the conductor. Some AC motors also have windings on their rotors.

The rotation principle of a three-phase asynchronous motor.

The prerequisite for a three-phase asynchronous motor to rotate is to have a rotating magnetic field, and the stator winding of the three-phase asynchronous motor is used to generate a rotating magnetic field. We know that the voltage between the phases of the three-phase power supply is 120 degrees different in phase, and the three windings in the stator of the three-phase asynchronous motor are also 120 degrees different from each other in the spatial orientation, so that when the three-phase power supply is introduced in the stator winding, the stator winding will produce a rotating magnetic field, after the stator winding produces a rotating magnetic field, the rotor conductor (squirrel cage bar) will cut the magnetic field lines of the rotating magnetic field and generate an induced current, and the current in the rotor guide bar interacts with the rotating magnetic field to produce electromagnetic force. The electromagnetic torque generated by the electromagnetic force drives the rotor to rotate in the direction of the rotating magnetic field. In general, the actual speed of the motor is lower than the speed of the rotating magnetic field.

For this reason, we call the three-phase motor an asynchronous motor.

Second, the rotation principle of single-phase AC motor.

Single-phase AC motors have only one winding, and the rotor is squirrel cage type.

Single-phase electricity cannot produce a rotating magnetic field. To make the single-phase motor can rotate automatically, we can add a starting winding in the stator, the starting winding and the main winding are 90 degrees apart in space, and the starting winding should be connected in series with a suitable capacitor, so that the current with the main winding is approximately 90 degrees different in phase, that is, the so-called phase splitting principle. In this way, two currents with a difference of 90 degrees in time are fed into two windings that are space-varying by 90 degrees, and a (two-phase) rotating magnetic field will be generated in space, and under the action of this rotating magnetic field, the rotor will start automatically

It is best to use direct current, because direct current is relatively stable, while alternating current is not very stable, the current fluctuates greatly, and it is easy to break the soymilk machine.

The price comparison of DC motor is stable, and the AC motor will fluctuate high and low, which is invisible to the naked eye, which is related to the current.

The difference between the AC motor and the DC motor of the soymilk machine, the master teaches you that the original installation is so simple.

3. The power supply supplied by all the soymilk machine motors is AC, but after entering the motor, the coil is DC after passing through the commutator.

Generally, the fully automated processes such as preheating, beating, and boiling of soymilk machines are completed by MCU (single-chip microcomputer) pin-related control, corresponding triode drive, and then circuit conversion by a relay group composed of multiple relays. As long as you master this basic rule, you can check the circuit of all types of soymilk machines and eliminate all kinds of faults.

The power supply provided by the motor of the soymilk machine and other small household appliances is AC, but the coil used after entering the motor is DC after passing through the commutator, and this DC also includes the excitation coil of the motor. It is uneconomical and unrealistic for household appliances to directly use DC motors under the current power supply system.

220v。The motor of the soymilk machine is a series motor, AC and DC general motor. If you use direct current, it is also 220V, but the control circuit may not be usable or even damaged.

When the DC power is supplied through the brushes.

When supplying power to the armature windings, the conductor under the n pole on the surface of the armature can flow through the current in the same direction, and according to the left-hand rule, the conductor will be subjected to a moment in the counterclockwise direction; The conductor under the S pole on the surface of the armature also flows through the current in the same direction, and the conductor will also be subjected to a moment in the counterclockwise direction according to the left-hand Yanshan rule.

The advantages and disadvantages of the inverter soymilk machine motor are as follows:1. Speed regulation is easy to call the code, and it is energy-saving.

2. The structure of the machine is simple, the size is small, the inertia is small, the cost is low, the maintenance is easy and durable. and celery.

3. It can achieve high speed and high voltage operation.

4. Able to soft start and fast braking.

5. Strong adaptability.

6. The disadvantage of the inverter motor is that when the power supply is switched by the working model, there may be 400% 500% impulse current, and the grid voltage will drop immediately, and the motor will be mechanically impacted.

Frequency conversion is to change the frequency of power supply, so as to adjust the load, reduce power consumption, reduce loss, and extend the service life of equipment.

The difference between the AC motor of the soybean milk recurring machine and the direct search tumbling motor, the master teaches you that the original installation is so simple.

A brand choice. For some brand-name soymilk machines, this is also tested for many years, and the quality and use effect are very good, so a brand-name soymilk machine that suits you is a good choice. But the ** of famous brands are a little expensive.

Capacity selection. When choosing a soymilk machine, if you are a small couple, then choose a smaller capacity, about 800ml. So if you have several people in a family, then it is recommended that you choose a 1200ml-1500ml soybean milk machine.

Material Services. When you go to the mall to buy a soymilk machine, you must understand the materials and accessories used in the soymilk machine. So a good soymilk machine generally uses good materials, and there is a good quality assurance of the goods, see what the service is, so that you can see it clearly and then ask to buy.

Look at the technology inside the machine. Many of us don't know the technology when buying a soymilk machine, so I'll teach you now, after arriving at the mall, look at the soymilk machine you want to choose, and then open it to see the shape of the heat pipe of the soymilk machine.

The design of the soymilk machine. Then for the design of the soymilk machine, the '** ratio' is the best, the proportion of water volume and the beans to be grinded, look at the water temperature in the soymilk machine. In general, the performance of the motor is very important, and whether the performance of its blade and soymilk machine is reasonable.

Don't care too much about the soymilk machine. When we consumers buy a soymilk machine, we must not be too concerned about it, and when we communicate with the shopping guide, we can't just believe what he says, and we must look at the soymilk machine with specific problems.