New type of wind and rainproof automatic window that is simple and easy to make

Most families now use ordinary windows, and have not yet realized the automation of window opening and closing. Sometimes, in unexpected situations (such as when there is a sudden change in weather such as wind or rain and no one is at home), it is very necessary for the windows to be able to close automatically. There are also automatic windows with such functions on the market, but they have not been fully promoted. The reason is that their components are special and the principles are complicated, resulting in high prices and not suitable for ordinary families. The wind and rainproof automatic window designed and manufactured in this article overcomes the above shortcomings. Its principle is an automatic control system composed mainly of relays, which can fully realize the function of automatically opening and closing windows. Because of its simple principle, easy implementation, low price, and convenience for people's lives, it has certain promotion value.

1. System composition

The entire control system is divided into three parts: the sensing part, the control part and the power part. The sensing part is composed of a humidity sensor (such as "rain" in the figure) and a wind sensor (such as "wind" in the figure) in parallel, which is used to input signals to the control circuit; the control part is mainly composed of relays, proximity switches and other components, which analyze and process the input signals and control the motor; the power part is composed of motors and transmission components, which drives the window to move according to the instructions issued by the control part.

2. Circuit principle

The principle of the entire control circuit is shown in the figure. The specific control process is divided into the following three cases:

(1) Assume that the window is closed under normal conditions. If it is rainy or windy, the humidity sensor (such as "rain" in the figure) and the wind sensor (such as "wind" in the figure) input signals to control the relay to close. At this time, the motor is energized and drives the window to close. After it is completely closed, the motor stops automatically by disconnecting the proximity switch (such as 1SQ in the figure). At this time, if the window needs to be opened, close switches 2SB and 3SB (both are disconnected under normal conditions) and open 1SB at the same time (it is closed under normal conditions. Since 1SB and 3SB are switched at the same time during the entire control process, they can be integrated into one switch SB for simultaneous control). The motor reverses to open the window. After it is fully opened, the motor stops automatically. At this time, switch SB and 2SB again. The window is restored to the initial open state.

(2) On sunny days or when there is no wind, that is, when there is no external signal input, if you need to close the window, just close switch 2SB (which is normally open). When the window is completely closed, the motor will automatically stop. Then open switch 2SB again to restore the window to its initial open state.

(3) If you need to open the window on a rainy day, press switches SB and 2SB. When the window is fully opened, the motor stops automatically. Switching switches SB and 2SB again can restore the window to its initial closed state.

3. Main components

1 motor: Model YHS-30, rated power 50W, rated voltage 220V, rated speed 1250r/min.
1 transformer: 24V, DC.
4 relays: Model JQC-3F-24VDC-12S, rated voltage 24V.
2 proximity switches: Model LB-M0824PA.
1 self-made humidity sensor and 1 wind sensor.