Why do hair dryers have to be divided into DC motors and AC motors, what is the difference between t

DC motor: fast speed, light weight, simple structure, easy to damage, large sound.

AC motor: the wind is large, the sound is small, it is more durable, the difference between hot air and cold air is large, the volume is large, the AC protection current is stable to prevent the voltage from being too low and burning out the machine, most of the current hair dryers are AC, and they have built-in diodes to protect the motor.

A better hair dryer AC series motor, its working voltage is AC 220V, he has no other connection with the heating wire in the circuit, and the hair dryer can blow cold air and hot air. The DC motor is generally driven by a thin heating wire step-down rectification, the heating wire must work on the motor to work, it can not provide a separate cold air, the cost of the DC motor is low, and the cost of the AC motor is high.

Hair dryer: AC hood level motor, strong wind, small sound. There is a big difference between hot air and cold air, and it is durable, but the body is extremely effective and heavier!

The DC motor fan has a high speed and a fast wind speed! Lightweight and convenient. Disadvantages: large sound, DC motor is easy to damage!

The DC motor is small in size and fast in speed. The structure is simple. The AC motor is large in size and does not have a high speed, but it has a large air outlet.

In fact, there is no difference between AC and DC, AC is just to protect the current stability to prevent the voltage from being too low and burn out the machine, most of the current hair dryers are AC, and they have built-in diodes to protect the motor.

Does the motor in the hair dryer use DC or AC power? How many volts pass through the transformer voltage.

Dear, I'm glad to answer for you: a better hair dryer with AC series motor, its working voltage is AC 220V, he has no other connection with the hail Zheng hot wire in the circuit, the hair dryer can blow cold air and hot air. The DC motor is generally driven by a small motor through a thin Shenxian Zen heating wire step-down rectification, the heating wire must work on the motor to work, it can not provide a single cold air, the cost of the DC motor is low, and the cost of the AC motor is high.

1. The manufacturing cost is different. The cost of DC motors is low, and the cost of AC motors is high.

2. The characteristics are different. The DC motor has fast speed, light weight, simple structure and easy damage. The AC motor has a large wind power and is relatively durable, and the difference between hot air and cold air is large, and the volume is large.

3. The use function is different. A better AC series motor for hair dryer must work with a motor, it cannot provide a separate cold air, while a DC motor can.

DC motor: fast speed, light weight, simple structure, easy to damage, large sound AC motor: large wind, small sound, relatively durable, hot air and cold air are different, large volume,

A hair dryer requires a DC motor.

and AC motors, they are different.

1) DC motor.

The advantages are fast speed, light weight, simple structure, easy damage, and large sound making, while the AC first destroys the motor, the wind is large, the sound is small, and it is more durable, and the hot air is hot.

It is very different from cold air, large in size, and stable in AC protection current to prevent the voltage from being too low and burning.

Bad point machines, most of the current hair dryers are handed, and they all have built-in diodes to protect the motor.

2) A better hair dryer with AC series motor, its working voltage is AC 220V, he has no other connection with the heating wire in the circuit, the hair dryer can blow cold air and hot air. The DC motor is generally driven by a thin heating wire step-down rectification, the heating wire must work on the motor to work, it can not provide a separate cold reed air, the cost of the DC motor is low, and the cost of the AC motor is high.

3) Direct current, which does not change the magnitude and direction of the current in a unit of time is called direct current; Many appliances such as radios.

Many electrical appliances, such as loudspeakers, that do not contain inductive components, are driven by direct current. Alternating current, in which the magnitude and direction of the current continuously change periodically in a unit of time is called alternating current.

The usual communication is by the law of sine or cosine.

If the current changes regularly, the current first changes from zero to maximum, and then from maximum to zero. Then the reverse direction changes from zero to maximum, and then from maximum to zero, completing one cycle, and then the next cycle, and so on.

The electricity supplied to us by the daily power supply department is sinusoidal alternating current.

The magnitude and direction of sinusoidal alternating current change periodically over time according to the law of sinusoidal rattling. Alternating current has great advantages, in addition to being used for some special electrical appliances, such as motors, it has special significance for the transmission of electricity, especially long-distance transmission.

4) The function of direct current and alternating current is that these two different properties of electricity can be regarded as a kind of energy, and the equipment suitable for this energy can be used to transform this energy into the "power" that people need in different situations, so as to meet and meet the needs of people in all aspects of production and life. Therefore, there is a distinction between alternating current and direct current.