How to wire the electric fan motor

Introduction How to wire an electric fan motor? There are two windings inside the motor. One is the main winding, which is the running winding, and the other is the secondary winding, which is the starting winding. The live and neutral wires of single-phase motors can

How to wire the electric fan motor

There are two windings inside the motor, one is the main winding, which is the running winding, and the other is the secondary winding, which is the starting winding.

The live and neutral wires of a single-phase motor can be connected reversely. As shown in the figure above, by changing the position of the live wire, that is, changing the wires connected to both ends of the capacitor, the forward and reverse functions of the motor can be realized.

We can see from the picture above that when we set the multimeter's resistance setting and place the two test leads at point A and point B respectively, the resistance between AB is actually the starting winding and the running winding. The result of stringing them together, so the resistance is the largest. The smaller one is the resistance of BC, that is, the resistance of the starting winding; the smallest one is the resistance of AC, that is, the resistance of the running winding, and satisfies AC+BC=AB. (The main winding resistance of most single-phase motors is smaller than the secondary winding)

As shown in the picture, adding a reversing switch is actually changing the wiring at both ends of the capacitor. At this point, we should roughly understand the use of single-phase motors.

Extended information

Working principle of the motor

Schematic diagram

As can be seen from the picture above, this circuit can be divided into three parts. The leftmost 220v AC circuit , the swing circuit in the middle, and the fan circuit on the far right. The electric fan motor is a single-phase AC motor. It has two windings inside, one is called the running winding (also called the main winding), and the other is the starting winding (also called the auxiliary winding).

The starting circuit is composed of split phases, so that the main and auxiliary windings are spatially separated by 90° electrical angle. The speed regulating circuit is composed of a reactor speed regulating switch connected in series. By adjusting the size of the reactance, the voltage of the motor is changed to achieve speed regulation. After understanding this circuit diagram, it is enough to repair the electric fan.

The fan is one of the common parts we use in air conditioners. It is mainly used to filter and transport indoor air, reducing indoor temperature and purifying the air. When using air conditioners in the summer, we can use fans to cool down, dissipate heat and adjust the indoor temperature. However, we also know that fans are used very frequently. If used improperly, the fan may not spin or may have difficulty starting.

1. Fan blades

For air conditioning fans, the fan blades mainly play the role of wind. After the air conditioner is started, it will blow the indoor air outdoors and play the role of cooling and purifying the air. Therefore, the fan blades of the air conditioner must ensure sufficient strength. The fan blades of the air conditioner motor are designed to filter the indoor air and transport it to the outdoors, thereby achieving the effects of cooling and purifying the air. If an air conditioning fan is used for too long, the blades will become fragile and aged, and can easily break, affecting the fan's starting effect and service life. It is also possible that the fan does not rotate due to foreign matter on the air conditioner blades or improper use of the fan. At this point, simply reinstalling the fan will solve the problem.

2. Fan motor

When we usually use air conditioners, there are three components: the air conditioner main unit, the stator and the DC motor. If the fan motor is idling, it is most likely that the causeIt is difficult to start because the motor is faulty. Then we can solve this problem by checking the fan motor. Check the fan motor. If the fan motor fails, then we can replace the fan motor or extend the service life of the fan motor.

3. Terminal post

It is the intermediate component connecting the air conditioner and fan. When the fan fails to start, the fan terminals may be poorly wired. We can check whether the fan terminal is damaged or stuck. If the fan jams, you can replace the fan accessories or fan to solve the problem, and then continue to use the air conditioner; if the fan cannot start, you can check it out and solve the problem by replacing the terminals and adjusting the wiring.

4. Case

There is a problem with the fan case and the fan motor does not rotate. Solution: Open the case and check whether the screws are loose and difficult to rotate. If the screws are loose, they need to be replaced. What will happen if they are not replaced? You can disassemble the filter to see if there is dust stuck in the holes, or clean the areas that have not been disassembled cleanly. If the fan case is too dirty and the fan motor fails to rotate or is difficult to start, the fan motor should be replaced in time. If the fan does not spin or is difficult to start, you need to disassemble the fan case, disassemble the air filter a little, and clean the motor.

  • Popular Focus
  • Where is the cheapest battery wholesale?

    Where is the cheapest battery wholesale in Tangxia, Sanyuanli, Baiyun District? There is an enterprise specializing in the independent production of electric vehicles in Tangxia, Sanyuanli, Baiyun District, Baiyun Sanyuanli Avenue, Baiyun Sanyuanli Street
    08-02
  • Understanding 18650 Voltage: A Comprehensive Guide to Lithium-Ion Battery Power

    Lithium-ion batteries have become the backbone of modern portable electronics, providing the energy needed for everything from smartphones to electric vehicles. Among the various types of lithium-ion batteries, the 18650 battery stands out as a popular ch
    08-27
  • What are the materials of the negative electrodes of lithium batteries?

    What are the materials of the negative electrodes of lithium batteries? The main commercial applications of lithium batteries include graphite, which is a sheet of copper used to guide current and which does not react. another safe
    08-02
  • The difference between 18500 and 26500 batteries

    What is the difference between 18500 and 26500 batteries? The answer above is 18650. The person asking the question should ask what is the difference between 18505 and 26500 batteries. In the case of Fuant ER1
    08-02
  • What does 3.7V 80mAh written on a lithium battery mean?

    What does 3.7V 80mAh written on a lithium battery mean? 3.7 V, 80 mA = 0.08 A, H means 1 hour, or 3600 seconds. Taken together, it is
    08-02
  • How long does a lithium battery (cell phone battery) last?

    How long does a lithium battery (cell phone battery) last? The lifespan of mobile phone batteries, under normal conditions of use and without serious impact, the lifespan set by the manufacturer must be 5 years.
    08-02
  • Will lithium batteries explode when charging?

    Will lithium batteries explode when charged? Will lithium batteries explode when charged? Lithium battery explosions usually occur during the charging process, because the negative electrode material of lithium batteries is graphite or other carbon materi
    08-02
  • Parameters of lgdas31865 lithium battery

    Parameters of lgdas31865 lithium battery The parameters of lgdas31865 lithium battery are as follows: LGDAS31865 is a model 18650 lithium battery with a capacity of
    08-02
  • What are the main components of lithium battery electrolyte?

    What are the main components of lithium battery electrolyte? The composition of lithium battery electrolyte is shown below. 1. Ethylene carbonate: molecular formula C3H4O3. Colorless transparent liquid (>35℃), room temperature
    08-02
  • Who are the lithium battery manufacturers in Shandong?

    What are the lithium battery manufacturers in Shandong? Shandong Shengyang Power Supply Co., Ltd. and Shandong Weineng Environmental Protection Power Technology Co., Ltd. 1. Shandong Shengyang Power Supply Co., Ltd. is located in Shengyang, Qufu City.
    08-02
  • Types of drone batteries available in 2024

    Part 1. Types of drone batteries available in 2024In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in
    07-30
  • How long does it take to charge 26650 battery?

    How long does it take to charge a 26650 battery? The charging time for a 26650 battery is generally between 3 and 6 hours, but the precise time depends on the power of the charger and the capacity of the battery. in general
    08-02
  • For what?Sure, here's an article based on the phrase "For what?

    The simple yet profound question, "For what?" often serves as a gateway to deeper reflections on purpose and intention. It is a query that invites us to delve into the reasons behind actions, decisions, and circumstances that shape our lives and the wor
    08-02
  • Choosing the Right Cart Battery

    This comprehensive guide will walk you through everything you need about cart batteries, from understanding different types to making an informed purchase decision.
    08-02
  • 30mAh~500mAh 3.7 V Li-ion Battery

    Welcome to Ufine's collection of 3.7V lithium-ion batteries ranging from 30mAh to 500mAh. Explore a diverse range of compact and lightweight batteries suitable for various electronic devices,
    08-02
  • Here are 10 essential facts about drone batteries for 2024.

    10 Key Facts About Drone Battery for 2024 In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in the consumer, commercial, and industrial sectors. Below are the primary types of drone batteries avai
    08-02
  • Could you please explain the difference among IMR, ICR, INR, and IFR 18650 batteries?

    What is the Difference Between IMR, ICR, INR, and IFR 18650 Battery?In 18650 batteries, discerning the differences among IMR, ICR, INR, and IFR types is fundamental for tailored and efficient battery usage. These distinct
    08-02
  • Safety considerations for cart batteries

    Selecting the ideal cart battery is crucial for ensuring optimal performance and longevity of your electric vehicle or vaping device. This comprehensive guide w
    08-01