How do you reasonably choose the electric window opener?

In the era of rapid growth, electric window openers can make our life more convenient and efficient, but there are many types of electric window openers, and each electric window opener has a wide range of functions and applications. I'd like to give you a brief introduction on how to correctly and reasonably select the electric window opener?

1. Select the type of electric window opener

Electric window opener is a system that automatically opens and closes various windows inside and outside the building by driving electrical equipment, and is divided into chain window opener and spiral window opener according to the mechanical driving method. Select the electric window opener according to the designed window type. In order to determine the type of window, there are upper suspension, lower suspension, middle suspension, skylight, sliding window, casement window, inclined window, exhaust window and other special windows and devices.

1. For skylight: first, select a push type electric window opening desk, which is mainly suitable for bearing vertical force, has no possibility of bending, and has strong resistance to wind and rain. The thrust is usually large.

2. For sliding window: when direct dial electric windowsill is selected, this method is suitable for straight-line operation, and the sealing degree of window sash closing is also good when closing the window.

3. For louvers: you can choose a small paddle type electric sill.

4. In the case of top / bottom / suspended windows: if it is chain type, it may be pad type, but the pushing force of pad type is large.

If the window is large, the window is overloaded: the width of the window is large (more than 1.5m wide), and the thrust / pull required to open is large (more than 450 n), which is the electric opening of double air conditioner. Considering that one unit comes to the same window at the same time and is equipped with two chain sliding doors to ensure the stability of opening the window and the degree of sealing when closing.

2. Select the stroke and angle of the electric window opener (this will slightly affect the price range)

Opening stroke: convert the required opening angle into sinusoidal value, which is half of the straight-line distance (stroke) of window opening = 2 * window height * opening angle. With daily ventilation only, the opening angle shall not be greater than 30 degrees, but the travel shall be 300-400mm. If required by the fire department, it is always 70 degrees when linking fire signals.

3. Thrust selection of electric window opener (which has a great impact on the price range)

Between the general 200n-600n commercial chain, between the general 200n-1000n push rod, and between 1000n-2000n is toomohiro's patch door flasher. The diameter of Tomohiro's motor is > 1000N ≤ 1000N. A simple push-pull calculation is f = 1 / 2 (fan weight) * (maximum stroke opening / window height).

4. Power supply selection of electric window opener (which will slightly affect the price range)

The power supply used is AC220V, DC24V, etc. Use AC220V for daily ventilation; Use DC24V power supply when fire fighting is required.

In any case, the four elements of the selection table must be selected according to the situation of different windows. 1. Instrument type; 2. Voltage usage; 3. Stroke opening; 4. Pushing force, etc.