Why does the small electric fan turn when the battery is charged, but it doesn t turn when it is unp

Why does the small electric fan turn when the battery is charged, but it doesn't turn when it is unplugged?

In this case, in fact, the battery has not been charged, and the current power is the power of the power supply, so if the power cord is unplugged, the fan will naturally not rotate.

Of course, because if it is charged, it will have electric power to generate kinetic energy, so it will rotate, and if there is no electricity, of course it will not rotate, because it has no energy conversion.

In this case, in fact, the battery has not been charged and the power supply is currently in use. So, when the power cord is unplugged, the fan will naturally stop spinning.

In this case, the rechargeable battery cannot be charged. Gadgets like this rechargeable battery are not durable and can break easily. If the voltage is volts and the installation space allows, it is recommended to replace a used mobile phone battery, and the effect must be good.

In this case, in fact, the battery has not been charged, and the current power is the power of the power supply, so if the power cord is unplugged, the fan will naturally not rotate. It could also be that the charger itself is broken.

Small fans generally do not have batteries, and can only rely on the outside to provide power, and of course they can't be used if you unplug them. If the fan comes with its own battery, there may be a problem with the battery, and it is only a little bit after charging. You can replace the battery yourself.

1. Most people may encounter the following phenomenon, the electric fan does not rotate, pull it out by hand or wait for a long time to slowly turn up, and then use it for a period of time and find that it will not move when pulling it out by hand. In addition, the axial clearance of the motor's rotating shaft is too large, which will also cause the load to be unable to be dragged.

You also have to consider how long the electric fan has been used, the motor of the electric fan will be lost, and the shaft sleeve of the motor will be easily burned out after wearing. If the motor is used for a long time, the internal resistance of the motor will also become larger, and the load capacity will become lower, resulting in the inability to drive the fan blade to rotate.

2. The possible reason for this phenomenon is that the starting capacitance in the fan has become smaller, and after removing it, it will be found that the shaft can still operate normally, which is not enough to make the motor rotate.

3. When the fan blade is installed on it, the motor is not dragged, and the shaft can still run normally after being removed, which means that the fan motor is not broken.

4. Then after disconnecting the power supply of the fan, gently dial the fan blade and find that the rotation is a little stiff, which means that the oil of the electric fan is gone.

If the fan doesn't rotate for a while, try pressing the switch again to see if there is any movement, so as to judge whether the switch is in poor contact (for example, if you press and hold, it will rotate, and if you release it, it will not rotate).

If the problem of the switch is ruled out, the situation is not optimistic, the possibility of the motor opening is very large, basically once the motor is damaged, there is no need to repair.

Summary. Hello, you are talking about charging a small fan, this situation should be a problem with the charging battery. The battery can't be charged inside, and it can be turned when charged, so there is no problem with the charger and motor.

So now there are two situations, one is the battery itself, the battery does not store power, and the other is that the battery's connection line falls off or is not in good contact.

Hello, you are talking about charging a small fan, this situation should be a problem with the charging battery. The battery can't be charged into the electric Zen sale, and the charge can be turned, so the charger and motor are sent to indicate that there is no dust matching problem. So now there are two situations, one is the battery itself, the battery does not store power, and the other is that the battery's connection line falls off or is not in good contact.

You can open it to see if the battery cable is desoldered, and whether it has been dropped and there are places inside that are not in good contact.

The electric fan doesn't turn, and you have to dial it by hand to turn the reason:

The capacitance of the starting capacitor is reduced, resulting in difficulty in starting;

The lack of oil in the motor pad causes an increase in resistance.

Solutions to the above problems:

Replace the starting capacitor according to the original model, generally left and right;

When the motor bearing is short of oil, the motor should be disassembled and special lubricating oil should be injected into the wool felt inside the bearing.

Note: After the starting capacitor is damaged, it should be replaced according to the original model, do not change its capacity without permission, not the larger the capacity, the better, otherwise the motor will be burned.

Summary. Kiss! Try not to.

If the battery car charger fan does not rotate, try not to charge it again, charging for a long time will damage the charger due to the increase in temperature. This is because the fan on the charger is to dissipate heat from the charger's high-power switch tube, if the fan does not rotate, the temperature of the switch tube will rise quickly, and after a certain temperature, the temperature of the switch tube will exceed the allowable range and cause burning, and even the danger of ** will appear in serious cases. ”

Can the charger be charged if the small fan does not turn?

Kiss! Hello, I am Mr. Huang, a social worker who is good at solving social problems such as life knowledge, emotional psychology, marriage and family, and has been engaged in the social work industry for 4 years now, and I am very happy to serve you.

Kiss! Try not to "battery car charger fan does not turn and try not to charge again, charging for a long time will damage the charger due to the temperature rise." This is because the fan on the charger is to dissipate heat from the charger's high-power switch tube, if the fan does not rotate, the temperature of the switch tube will rise quickly, and after a certain temperature, the temperature of the switch tube will exceed the allowable range and cause burning, and even the danger of ** will appear in serious cases.

If it's summer, it's better not to charge it for a long time, and if it's winter, there's no problem. The electric vehicle fan is used to dissipate heat, and the working principle of the charger is to turn the 220V alternating current into low-voltage direct current through step-down, rectification, and filtering, and the transformer and components inside will heat up, and the fan is used to dissipate heat.

Kiss! The charger is not expensive, and for safety, it is recommended to replace it with a new one.

Kiss! I hope mine can help you, if you are satisfied with my service, please give a thumbs up! Your efforts are important to me, and your support is what drives my progress. I wish you all the best!

The EV charger fan not turning may be because the temperature of the charger radiator is not high enough, so the fan does not need to turn. Under normal circumstances, the circuit of the charger will automatically adapt to the ambient temperature to ensure that the charger works within the appropriate temperature range. Therefore, even if the fan does not rotate, the charger can still work normally for charging the electric vehicle.

However, if the temperature of the charger radiator is too high, the fan still needs to rotate to ensure that the charger's lap slip works properly and safely.

1. It may be that there is a shortage of oil, you can try to inject oil and inject oil from the spindle until the spindle can rotate freely.

2. If the spindle can be moved, it will take a while to move after starting, and the speed is very slow, so check the capacitance and replace it.

3. If the above two points are useless, that is, you can't move, you can check whether there is a white, small grain of temperature control protection on the motor is damaged, and you can directly connect the two levels.

The small fan has power, but it does not turn is that the control power supply is broken, and inside is a very complicated three-speed. Control circuit board. Maybe he can't use it anymore, throw it away, it won't cost much to buy one.

It means that there may be a problem with the motor, so it is recommended not to use it, there is a risk of leakage, safety is the most important, it is recommended to take it to a professional maintenance location for maintenance or buy another one.

There are two reasons, either it takes a long time and you take effect, and the copper wire has a rusty reason, so it can't be rotated. This may be because there is water inside, and you can't turn around when the water comes in.

It is estimated that the inside is burned out, and in this case, the copper wire inside the electric fan is burned out, so it doesn't work.

1.The small electric fan will only turn when it is charged, because there is no spare storage battery in the small electric fan, if you add a savings battery to it, it will turn.

2.Because the manufacturer designed this electric fan to dissipate heat mainly for the computer, the air dissipation can be turned only by plugging in the computer.