How to adjust the speed of the exhaust fan 50, how to adjust the speed of the exhaust fan

Hello, the general air volume of exhaust fans is relatively small, there is no speed regulation function, especially the exhaust fan of alternating current, some exhaust fans with large air volume can have high-end and low-grade fixed air volume speed regulation;

If you need to regulate the speed, you need to buy a DC exhaust fan, so that you can achieve stepless speed regulation, and will not damage the motor, if it is an exhaust fan on the market, capacitor motor products, forcibly add a speed control switch, it will cause, at low speed, the motor overheats, fuse the heat protector, or when starting, the exhaust fan because in the low-speed position, the impeller can not start, resulting in the motor not rotating, will directly burn the motor, so the exhaust fan speed regulation, or be cautious and cautious.

If you need further detailed consultation, you can consult, Jing Zhengye exhaust fan, we have professionals to provide you with professional answers.

More than 1,400 rpm should be medium speed, and 2800 rpm, the noise may be caused by the poor dynamic balance of the fan, this can not be repaired by yourself, it is not easy to adjust the speed, the motor of the electric fan has several taps for speed regulation, yours do not have!. It is recommended that you change to a better one, listen to the sound and observe its vibration on the spot when you buy it, the smaller the better.

I am an engineer who has worked in the field of ventilation for 10 years, in the professional language you:

Two schemes: 1. Economical, as far as you said, the use of small AC speed regulation switch, very simple, can achieve stepless speed regulation.

2. Connect the domestic Tai'an inverter, the imported one is too high, because the power is small, the fan load is light, and the domestic one can also ensure the life and quality, it is estimated that it can be bought for about 600 yuan, and it is also sold online. The circuit is very simple, and you can connect it as soon as you read the manual.

Can a high-speed exhaust fan be fitted with a governor?

1. Open the Start Menu and click the [Start Windows System Control Panel] menu item in turn.

2. Click the [Power Options] menu item in the window.

3. Click the [Change Plan Settings] shortcut link on the right.

4. Click the [Change Advanced Power Settings] shortcut link.

5. Click the "Processor Power Management" menu item in the window, and click [Settings].

6. Set to [Passive], and the CPU will automatically adjust the speed of the fan according to the temperature.

Setting up your computer's cooling fan typically requires the following steps:

Confirm the connection of the cooling fan: Check that the cooling fan is properly connected to the cooling fan slot on the motherboard. Make sure the connection is secure and the plug is not loose.

Enter BIOS settings: Restart the computer and press the corresponding Yanqiao cavity button (usually DEL, F2 or F10) during the boot process to enter the BIOS settings interface.

Look for fan control options: In the BIOS settings screen, look for options related to cooling fans. These options may be labeled as "fan control", "hardware monitor", or something similar.

Adjust the fan speed: In the fan control options, you can usually select a different fan speed mode, such as "Auto" or "Manual". If you choose manual mode, you can set the speed or percentage of the fan on the shirt.

Adjust the fan speed to suit your cooling needs and personal preferences.

Save Settings and Exit: After you are done setting up the fan, make sure to save the changes and exit the BIOS settings. You can usually follow the on-screen instructions to save your settings and then erase your new startup computer.

1. There are generally two methods for the speed regulation of household sliding dust electric fans, namely reactor speed regulation and tap speed regulation. The characteristics of tap speed regulation are that only the wiring of the stator winding is changed, and no reactor is used, so it consumes less power, saves materials and is light in weight, so it is widely used. However, once this fan winding is burned, it is often difficult to judge the value of the wiring mode and the number of taps inside the stator winding, which brings difficulties to the repair work.

In order to facilitate repair, a simple method of calculating the number of winding tap turns is generally adopted, which has been proved to be feasible in practice.

1. Reactor method.

Schematic diagram of speed regulation of a capacitive motor series reactor.

2. Tap method:

1) L-shaped tap.

2) T-tap.

2. Continuously variable speed:

Stepless speed regulation generally uses bidirectional thyristor as the switch of the fan motor Using the controllable characteristics of the thyristor, by changing the control angle of the thyristor, the output voltage of the thyristor is changed, so as to achieve the purpose of adjusting the speed of the motor. At the beginning of each half-cycle of the power supply voltage, the bidirectional thyristor VS is the blocking state, the power supply voltage is charged to the capacitor C through the potentiometer RP, and the resistor R is charged to the capacitor C, when the charging voltage on the capacitor C reaches the trigger voltage of the bidirectional trigger diode VD, VD is turned on, and C is discharged to the control pole of VS through VD, so that VS is on, and there is a current flowing through the motor winding. By adjusting the resistance of the potentiometric brother to let the RP of the Tong, the charging time constant of the capacitor C can be adjusted, and the control angle of the bidirectional thyristor VS is adjusted, the larger the RP, the larger the control angle, the voltage on the load motor M becomes smaller, and the speed becomes slower.