Automatic windows. Electric drives for windows and transoms

January 28, 2016 at 12:54 pm

Automation of room ventilation through the window and what came of it

• Electronics for beginners

It all started with the fact that the room became hot if the computer was running, due to my absence or laziness, the room was not often ventilated (although it would seem that you just need to open the window). In short, I decided to make this "device". In fact, a temperature sensor was required, a mechanism that opens and closes the window and automation that controls it all.

At that time, I was already a little involved in pampering with controllers, so I decided that I needed a controller, and the simplest temperature sensor (aka thermistor) - great, it’s done, I bought these things at a local store, soldered these things on a breadboard, tried the simplest automation such as heating the sensor breathing - the LED lights up, the sensor cools down - the LED goes out. It turned out something like this:

Great, it works! the next question arose - breathing is all clear, but I would like specific temperature values, after a long calculation of the voltage values ​​\u200b\u200band converting them to temperature, I got more or less exact values temperature that I observed on the computer monitor taking values ​​from the COM port. I also rejoiced at this achievement (it would seem that a person needs something for joy). Then an idea came up, but if I didn’t have a computer to look at the temperature values, and indeed a separate device that works on its own and, if necessary, communicates with the computer - it seems to be interesting. The variant with seven-segment indicators was dismissed somehow very quickly - it's not an interesting type. decided to draw a conclusion on the LCD.

I used such an indicator, began to understand what is there and how it happens, what they need there, tested it on breadboard and came to this conclusion - they require initial initialization, and it depends on the specific indicator used, and when observing any delays, I thought that if I have an analog temperature sensor with time conversion, the indicator also has any delays, and I also need a window opening mechanism, most likely on the engine to do there, too, will have to calculate in time.

In general, I decided to make a separate module that will output information (later I called it the MVTI text information output module), and the main controller should think about the fact that there will not even be any delay, besides it saves memory. I decided to use the standard COM port interface (RS-232). The task was as follows: the module accepts characters via RS-232 and displays them on the LCD, before starting all the necessary initialization is performed, all the necessary delays are observed, all kinds of checks are made on the type of the number of output 40 characters, transitions to a new line, and a table of correspondence of data encoding characters coming from COM port and LCD, I really wanted the output to be in Russian.

I took up this issue - I created a circuit, laid out a board and it was necessary to start manufacturing it, something was wrong with my LUT technology, and I decided to try to do it in China, read a whole article about it on Habré, and decided to order it in the same place as in their article it was written, the site of the board manufacturer. They have a minimum order of 5 pieces and 1 add-on for free (in general, for any price it is more profitable than ordering from us). I ordered these 5 pieces from them, I thought it would be useful if I still make such modules, they turn out to be universal, you can just put the modem cable to zero and output something (power from the unit). They sent me boards a month later, soldered the elements there, wrote a program for the controller that is on the module, tested it, and in the first approximation I liked it, then slowly finished it as I found something. The final version came out like this.

Now I have displayed the temperature on the LCD in the form: Temperature 23 degrees, got up new problem she jumped at the slightest breath of a breeze, such as opening a window door, he passed by himself - he did an averaging, it turned out like normal. The temperature is certainly good, but I also wanted to take time out there. I tried to do this too, added the code, found that there are flaws when the power is turned off - it goes astray and must be set every time. There was not enough experience with controllers and over time it didn’t work out very well, the seconds were different and errors quickly ran up. Having tried this, I began to think how to be, the arduino developed and cheap real-time modules appeared, and I decided on that.

I took an arduino Leonardo with 2 UART ports (one for the text output module, the second for connecting to a computer), a real-time module. There were no problems with the libraries, there was enough code in the internet and examples, I quickly wrote the code, tested it and enjoyed life - time passed and the date was also there and when it was turned off, the time did not go astray, a completely wonderful life. But even here I didn’t sit down, I didn’t like that the time on the small LCD screen shows very little time, I need to think of something, and I decided to make a time output module on seven-segment indicators. Seven-segment indicator with two dots good size did not find myself. I used 2 dual plus 2 LEDs for points, I decided to make the board the same as the previous one, but not to make it a frequency one, but with memory chips that store the state of hours and minutes, i.e. time is recorded there 1 time per minute, then the pins are free for other tasks. I got this module:

The next step is the window opening mechanism. I have a wooden window that opens on its side, a narrow and long window leaf to the top. A lot of time was lost here until I picked up more or less suitable option for a system that deals with opening and closing a window. At the last moment, the mechanism looks like this:

Everything was assembled from improvised means, the rods were taken from the bar cabinet door mechanism (still Soviet design), the stepper motor from the printer (driver on the L293 chip), white plastic part- printed on a 3D printer. Several times the design was lightened and redone, at the moment it performs its function, I am not entirely satisfied with it - so I plan to modernize it. For example, a program was written so that at a temperature of more than 27 degrees it opens a window, less than 24 degrees it closes the window, but it is planned to ventilate in time with orientation to temperature: if the temperature drops quickly during ventilation, then the ventilation is short in time, while the ventilation itself occurs more often and vice versa .

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The technologies that are offered to the consumer today have taught people to be picky and a little lazy. Take at least a TV: its existence is already unthinkable without a remote control. And what about windows? Modern PVC constructions are very convenient, but perhaps they can be set in motion with one push of a button without getting up from the couch?

It's really possible. Today, automatic window opening is not so rare. Such a widespread additional function I did not receive it only because it appeared relatively recently. Currently, ordering the installation of such a mechanism on your windows is not at all difficult.

Why automatic window opening?

Remote window control

For those who are already accustomed to comfort in everything, such a question will not occur to them. Just need! After all, it's convenient. But there are people who do not like such innovations at first. Like, why really relax? You can do everything, as before, without a remote control.

In many cases, you can actually do without it. But it will still be much more convenient with him. Sometimes it is even necessary.

Benefits of automatic window drives

Controlling window shading from a distance

· Adjustment of "weather in the house" - home climate - at any time of the day, quickly and easily. Not everyone has air conditioners in the apartment. But many are familiar with the situation when the temperature "jumps" several times during the day. This can happen due to uneven heating supply, on cold days when you have to use a heater, in the summer heat. It is difficult to accurately guess the temperature at which you can stop. Therefore, it is necessary to open and close windows several times a day, to regulate the level of ventilation.

Automatic opening windows in the attic

If the room is on sunny side and there is a dimming function, the remote control will also help to adjust the level of lighting. When blinds and windows are automatically rolled up - more precisely, they close and open, this can be done easily and quickly. For example, when you sleep during the day, and extra lighting just gets in the way. After all, it is much easier to press one button than to get up and go somewhere, even a couple of meters.

· Irreplaceable system of automatic opening of windows and for those who have children. Everyone who lives above the ground floor does not want to once again let the child go to the windowsill, even if he is already 5-9 years old. But children at this age are already left alone at home, even for an hour. They may well need to open the window. Much calmer if they do it from a distance.

· Automation will be very useful in the homes of pensioners. In this case, it is not even worth discussing the fact that it is many times easier for them to manage with the remote control.

Window automation works in case of fire

· Plastic structures installed in enterprises. Almost every gym, fitness center, store, entertainment complex and other similar premises are equipped with them. A modern mechanism for automatically opening windows is simply necessary there due to the huge size of the openings. Doing everything manually is difficult.

· Automation is appropriate in enterprises and large buildings for use in fire protection systems. In the event of a fire alarm being triggered, the windows in the burning room are blocked, while in others they are opened, which provides smoke trapping and access fresh air. There is an automatic switching between windows, which allows minimizing the effects of a fire.

Very convenient for hard-to-reach places - under the ceiling, in the attic and so on.

· Also automatic systems for windows help to prolong their service life. The mechanism always opens neatly, the load on it is calculated with absolute precision. This is not at all the case when employees or households either slam the transom, or pull it harder than expected. The design will last longer - perhaps even for several years.

Automatic window closing and additional functions

Skylights can be conveniently opened with a remote control

Such mechanisms do not always have only one function - closing and opening by pressing a button. As is the case with fire fighting systems, it is possible to install special sensors that will regulate the automatic closing of windows if necessary.

Each mechanical system has its own set of functions. It is selected directly at the time of purchase. It is better to contact those companies that offer a really impressive range, since this does not limit the buyer's choice. Managers will explain the purpose of all items, and you will be able to determine which ones you need and which ones will definitely not be useful.

Control of the gates with a remote control

Most often, an automatic window blocker is used to protect against moisture. For this purpose, so-called rain sensors are installed on the outside of the structure, which will give a signal to close as soon as drops start to fall on the profiles and glass. Wetting the inside can damage the structure, and if there is hail and rain outside, the room will also suffer. So automatic closing windows in this case will be useful.

Control with large quantity functions are usually amenable to manual programming. This means that you can turn off some of them, and not only leave the rest, but also set them for a certain time. For example, put ventilation on while you are away from home for a couple of hours. Then automatic opening windows and their subsequent closing will occur on time and without your participation.

Electric window drive

Many systems operate without wires, as they take energy from specially installed solar panels. Sometimes there is an automatic minimization of windows in case of strong wind on the street.

When else can airing be necessary without your participation? Remember the transoms and frames that were before. They always had to be glued for the winter, insulated, puttied and painted over the cracks ... And all because drafts interfered with people. Modern technologies installation of PVC structures, and the structures themselves, exclude blowing.

electric drive

If you are away from home for a long time, for example, go on business trips, automatically opening windows will ventilate no worse than an air conditioner. This will prevent stagnation of air in a closed room. There is no need to worry about safety - they will be in ventilation mode, and only at a certain time. Additionally, you can install protection against hacking.

You can also purchase and install an auto-dimming window that controls the amount of light. Highly useful feature for rooms with large openings and located on the sunny side. There is nothing to say about the automatic opening of windows in case of fire for ventilation and smoke release - this is the best solution for organizations.

Automatic window openers: technological features

Why are windows minimized automatically, what mechanism controls them? They are opened and closed electrically. They may be various kinds depending on what the principle of operation is and where it is planned to use them.

Chain drives

often used in programmable systems, when the window closes automatically, without human intervention. Easy to manage. Compact system allows you to use such a mechanism in almost any type of transoms and profiles.

Rod drives

Often used for attics. The main direction is large PVC structures, which require force to open. The rod drive is able not only to hold them, but also to open them to a greater width.

Rack and pinion drives

Automatic opening system skylights

As well as stock ones, they are convenient for attics and industrial buildings, for large rooms and large openings.

There are several more options. Deciding which automatic window openers are needed in a particular case is usually helped by the manager's consultation, along with data on the room for which they are purchased. Today, "smart windows" are already a reality. So why not take advantage of it?

The latest generation today does not leave indifferent any consumer who has already managed to get acquainted with the automation of modern double-glazed windows. They are designed not only to provide style and beauty in the interior of the room, but also to bring convenience and comfort in their use. Perhaps the last distinguishing feature of automation is their main function.

When is it best to use automation?

Sometimes you simply cannot do without an automated system for opening, closing or ventilating windows. This is especially true in cases where the windows are located in hard-to-reach places. For example, it is too high, as it happens in workshops in production or in a library, as well as situations where the passage to them is forced by some kind of product, goods, as often happens in warehouses. Given the complexity of operation in such buildings and structures, manufacturers began to produce double-glazed windows equipped with very convenient mechanisms. In total, there are several main areas where application is a priority:

Industrial premises, industrial facilities - workshops, workshops, bookers, hangars, etc.;
commercial buildings;
administrative, office buildings, where there are large panoramic heavy double-glazed windows;
private housing, especially in apartments and houses where people with disabilities live;

Of course, this is an unlimited circle of people who want to use such products in their premises. Most consumers have already appreciated the convenience and comfort of using automatic systems, and therefore they can also be used in apartments and houses by true connoisseurs of comfort, as well as in any in public places. So, for example, for the convenience of restaurant guests, in order not to disturb them when airing the room, just press the button on remote control control, and the window itself will open for as long as it is required. Such windows are especially convenient also in those rooms where smoke often occurs.

What are automation systems

Automation allows you to dose the load when using them, which means that the fittings have every chance to last as long as possible. Among the majority of manufacturers, the most popular can be noted, which have long specialized in the production of this kind of product. Manufacturers of automated double-glazed windows are:

1. Austria - "ISSA".
2. Germany - "HAUTAU".
3. Germany - "GEZE".
4. Germany - "ROTO".
5. Italy - "GIESSE".

Reliability, long life, innovation and wide range of- all this is inherent in these brands. Models that are produced by such and other manufacturers are divided into the following options:

1. Chain operated windows.
2. Spindle option.
3. Rack and pinion system.
4. Electrical fixtures having a scissor type or "electric scissors".
5. Automatic ventilation.

The chain drive is characterized by its ease of use due to the chain having specialized links that allow it to bend only in one direction. With such a mechanism, the following types of installation are made:

Top- and bottom-hung;
mid-hung;
ceiling models for lighting from above.

The stroke of the leaf when opening or closing is adjustable from 90 to 400 mm, and the force is expended up to approximately 150 N. Some models can be equipped with an electric drive with a power of up to 24V with direct current, as well as 230V with alternating current. electric current. Typically, these options are used for double-glazed windows with parallel inclusion and wide sashes - more than 1500 mm. The opening speed of these mechanisms is quite high - 40 mm / s. The chain itself must be coated with anti-corrosion protective layer"dacromet" ("dacromet"). The system itself is also equipped with a special limit microswitch.

Spindle drive is used for confined spaces where fast-speed (40 mm/s) opening-closing of frames is required. At the same time, the weight category of such windows should be medium, which allows automation to work with a force of up to 450 N. The spindles have an electric drive mechanism and have special guides - tires located on the sides of the fixture. Such tires help to move the point of the engine housing in the direction window frame. The voltage supplied for normal operation automatic appliance- 230V. The electric drive has a high protection class - IP55, as well as contacts designed to work with parallel modification (exit of the working device 180-300 mm) and connection.

And, indeed, such a drive does an excellent job with tape, top-hung windows with vertical sashes, as well as with multi-layer double-glazed windows. This suggests that the mechanism can withstand heavy workloads. All components of such accessories are equipped with additional elements helping in the operation of the mechanism. These are washers, and brackets, as well as the main part - guide rails. The whole device works not only with high speed opening, high rates wear resistance, but also has such an important feature as quiet operation.

Rack and pinion was originally intended for use in industrial and manufacturing facilities. They were installed to open and close skylights, overall transoms and massive heavy windows located at the top of the premises. The opening speed here is significantly lower - up to 8 mm / s, but it provides a kind of safety when managing heavy structures. The opening force, however, is higher than the previous options - up to 650 N, and the protection class is also quite high - IP65. The output inherent in the working mechanism is 750, 55, 530, 230, and also 170 mm. The power supply is the same as for other models (DC - 24V, AC - 230V).

Such a mechanism is very easy to install and operate. His main distinctive features is stability, uninterrupted operation, safety and a large assortment various options models. They can work not only to open windows, but even ventilation hatches or chimney restrictors. There are functions of parallel connection, the presence of a capacitor that suppresses various interference in the operation of the device.

Scissor-type electric drives are designed for maintenance of structures with increased power opening, requiring the application of forces of 1400 N. At the same time, the power of the current of electricity is spent the same as in the operation of other drives - 24V for direct current and 230V for alternating current. The locking device of the mechanism works with the spread of force on the entire perimeter of the window sash. Variants of the models are available with two or single-drive "electric scissors".

Ventilation is an essential function of any window. In the case of using automated mechanisms, manufacturers also took care of the release of such products as automation for ventilation. The device also works on an electric drive, has a stylish and technically modified appearance which doesn't interfere at all. modern style in the interior of the room. During installation, one part of the device is hidden in the sash and frame, and the second is attached outside the frame inside the room. If you want to maintain the ventilation mode constantly, then the mechanism allows you to install the device for several days in advance. To do this, there is a special weather sensor on which you can set the modes: "Rain", "Snow", "Wind", etc. They can be very useful in those rooms where there are difficulties in accessing the frames.

Benefits of this type of control

To the virtues automated systems include the following operational and technical characteristics:

The strength of the mechanisms when opening allows you to manage heavy structures;
perfect for windows located in hard-to-reach places;
silent opening (not for all models);
compact dimensions of the device itself;
all electrical cables completely hidden;
understandable and simple instruction in automation control.

Automatic window opening is the future of modern window technology. AT last years demand for it is constantly growing, this is due to the improvement and development window systems. Automation has become widely used in private homes, and it is already difficult to imagine production facilities without it, it is able not only to perform a simple function of opening and closing the sash, but now it is a whole system to which it is possible to connect wind, rain sensors, as well as a fire alarm . On a special wide windows, it is possible to install several drives at once to improve the clamping and correct opening and closing of the sash.

Benefits of using automatic window opening

Shops, factories with big windows and heavy transoms, which are located on high altitude, they cannot be opened manually. All these industries, today, use automatic opening. One of the advantages of using automatic window opening is the ability to connect it into a whole system. Moreover, they are so perfect that if one of several drives fails, the automation blocks the possibility of closing and opening the transom sash in order to avoid damage to the fittings. For example, you can connect with fire alarm, so that when the alarm is triggered, the windows open and the smoke can escape. Also, for some enterprises, the use of a weather block will be relevant. It includes rain and wind sensors that analyze weather and at any time are ready to give a command for emergency closing of the transom.

AT recent times more and more often automation is used in apartments and private houses, especially on the upper floors, where ceiling windows can be placed. We all have faced a situation when we had to stand on a window sill or a stool in order to open a transom or a high-placed window, which takes a long time and gives us a lot of inconvenience. Moreover, it requires considerable skill and strength, and a strong physical impact when opening and closing a window significantly reduces its service life, and automation is able to dose the load on fittings and a double-glazed window as a whole. Modern automatic drives have many advantages:

• Large selection of different drives (chain, rack, rod, scissor)
• Convenience, reliability and ease of installation
• High operational properties that allow installing the drive on almost all designs and types of windows
• Possibility to equip with various additional sensors
• In the case of the transom large sizes you can maximize the pressure around the entire perimeter of the sash

Let's summarize. Ease of use, comfort and convenience - these are the simple, but no less important qualities that a client receives when he decides to install such systems. Automatic window opening is the first step towards creating your “ smart home, keep up with the times.

Automation for windows helps to minimize human involvement in the process of opening and closing sashes or transoms. Today it is used not only to facilitate the opening of heavy and hard-to-reach structures. Such systems are great for creating the most comfortable conditions - remote ventilation of premises, automatic regulation humidity levels and to overcome wind or snow loads. Since the remote control of the window can be different ways, in this article we will tell you how to choose the right automatic systems for opening sashes.

How window automation works

Automation for PVC, wooden and aluminum profiles consists of an electric drive and a control system. Depending on the modification and installation method of windows, these devices are mounted on frames, slopes, walls, roofs or window sills. All of them are necessarily connected to active sashes and transoms. When voltage is applied to the electric motor, the drive pushes the sash through the transmission mechanism using a rod. When the device is turned on reverse mode, the stem is retracted together with the sash, and the window closes.

Actuators can push out and retract a rigid movable element in different ways, have different dimensions and power, but their basic principle of operation is always the same. It is based on converting the rotation of an electric motor into rectilinear motion drive element that opens and closes the window.

Ways to control window automation

In order for the drive to open or close the window, voltage must be applied to the electric motor at the right time. This operation can be performed in different ways. The function of supplying the operating voltage is always performed by a special actuator. In the simplest and most affordable version, manual switches are used in this capacity. When choosing this method of opening, electronic boards are not required, since the person personally sends and interrupts the impulses.

In all other situations, more than complex systems. They are executive devices that are controlled from the central panel or remote control. Signals are transmitted through wired communications or radio waves. A different number of windows can be connected to such devices. The number of shutters controlled from one block depends on the modification.

Through the use of the executive unit and the central panel, you can expand your capabilities:

• open windows at the appointed time without personal participation;
• automatically close the sashes during rain, heat or strong wind;
• ventilate rooms when the temperature or humidity level in the premises rises;
• control windows from anywhere in the world using a smartphone, laptop or computer.

The number of functions depends on the choice of the type of receiving and control unit. Some motor boards are compatible with humidity, temperature and wind sensors. Other devices are fully controlled through a central panel integrated into the system " Smart House". The cost of receiving and control units is 5000-60000 rubles per unit, and the price and functionality of the control device are determined by its type.

PM switches

This is the most affordable and simple device, which is conventional switch wired to the main unit. Depending on the model, the device key is fixed in 2 or 3 positions (up / down / in the middle), which allows you to send signals to the drive to open and close the sash. The range of these devices is supplemented by models with several keys, designed for connection to a group of electric motors. The cost of these devices ranges from 400 to 4000 rubles.

Remote controls

Without an actuator, opening and closing the window in this way will not work. Remote controller remote control sends commands not directly to the drive, but electronic board to which the motors are connected. This method of control is much more convenient than opening and closing windows using manual switches. Remote controls cost from 1000 to 4000 rubles.

Advantages	disadvantages
No need to get close to windows to open and close them	Remotes for windows have the same problems as similar devices for controlling another household appliances- they are often lost in the house and broken by negligence
It is possible to control several sashes individually or groups of windows	If the execution unit is controlled exclusively by the remote control, it cannot be commanded from a smartphone or computer
There is a function of programming the actions of the controller, which will give a command to open the shutters independently at a certain temperature, humidity and weather outside the window

Management via the central panel

It is currently the most advanced and handy device for gate control. It can be installed separately only for windows as a wireless wall keyboard or integrated into common system"Smart House". As in the case of remote controls, these controllers send commands to the actuators, which transmit signals to the actuators. Such devices cost from 5,000 to 40,000 rubles.

Advantages	disadvantages
The ability to control the opening of windows from outside your home, office or business	United centers smart home systems are controlled by software, which can be disruptive
Compatible with automatic blinds and roller shutters for windows	Wireless systems are susceptible to interference
Individual programming of windows for independent opening and closing when rain, sun, wind, temperature sensors are triggered	When choosing a wired control system, it is necessary to take care of laying numerous wires in advance.

To increase the number of controlled drives, special synchronizers and expansion modules are used. They cost from 5500 to 30000 rubles.

Scope of window automation

It is rational not to deal with the problems that have arisen already during the operation of the windows, but to warn them in advance. To do this, you will need to supplement the list of accessories with auxiliary devices at the order stage. Here is a list of the most common situations where windows may need to open automatically:

1. Sashes or transoms are located in hard-to-reach areas - this situation usually occurs during operation, rooflights, upper glazing areas of winter gardens and greenhouses. It is also relevant for standard structures that are installed in openings that are too high.


2. Active sashes are too heavy or too large - this mainly happens when panoramic glazing and installation of windows in overall openings. When at least one member of the family or work team experiences difficulties in opening the sashes for this reason, a window drive must be installed.


3. The design is palpable snow load- such problems most often arise during the operation of skylights and skylights. In these cases, automation is needed not only for ventilation, but also for security. If available indoors autonomous systems ventilation should be borne in mind that opening the flaps may also be necessary in case of fire. As a result, in such situations, windows with electric drive are a must.


4. Window owners have to deal with high wind loads - relevant for upper floors skyscrapers and areas with difficult climatic conditions. In such cases, electric drives help not only to open the windows, but also to maintain their integrity. After all, they further limit the reverse movement of the valves.


5. In the places of operation of new windows, it is assumed that there will be people with handicapped This applies to both residential and work spaces. By modern standards, automatic opening of windows in this case is mandatory.

Also, regardless of the type, dimensions, weight and installation location of window structures when they are connected to individual sensors or centralized system"Smart home" will automatically need the integration of electric drives.

Window automation is in demand in the operation of not only standard structures made on the basis of traditional PVC, wood or aluminum profiles. It is also necessary for completing systems.

Types of drives for windows

Any drive for opening windows consists of a housing, electric motor, pushing and retracting mechanism, fastening system. This is common elements for all products. However, they differ from each other in the way of converting movement, power and stroke length of the rod element. Currently, there are 4 types of these devices. Their performance is determined by the push and pull force. The larger this parameter, the heavier the leaf that the drive can open.

Spindle (rod) drives

Spindle automatic opening systems operate on the principle screw jack. The ejector rod, when the engine rotates, is twisted off the coarsely threaded shaft and moves forward. When the engine is turned on in reverse mode, the window closes. Thanks to this way of converting the movement, the window rod drive is able to develop a pulling force of over 2000 N. This is an excellent indicator. The price of one such device ranges from 9,000 to 27,000 rubles.

Chain drives

With these models, the rotational force of the engine is converted into push or pull using a chain transmission mechanism. A chain wound on a drum in a straightened state becomes rigid, due to which it performs the function of a push rod. Electric drives for windows of this type can cost from 6,000 to 13,600 rubles.

Rack and pinion drives

If automatic opening of heavy and large sashes is required, a rack drive is chosen for windows. In models of this type, the pushing force is transmitted using a small gear. During rotation, it moves forward or backward a gear rack connected to a rod that opens and closes windows. The cost of such devices varies from 6,750 to 17,300 rubles.

Main characteristics	Advantages	disadvantages
Push and pull force up to 650 N	Able to connect complexes of several devices, making them suitable for opening heavy overall doors	Decrease in pulling force by increasing the opening width of the sash
Maximum length rod outlet - up to 1500 mm	Easily tolerate serious pollution, which makes it possible to use them at industrial facilities	Low rod speed - up to 8 mm/s
Operating temperature range: -20 to +70 °C	Suitable for opening heavy door units and sliding gates

Lever drives

Such devices are also called fanlight. The double term explains their scope - they are often installed on high windows with vertically opening sashes. These fanlight devices work due to the fact that a shaft connected to an electric motor moves the swing arm "scissors" forward or backward. Due to this, depending on the direction of rotation of the shaft, the process of opening / closing the wings is carried out. These are the most expensive devices - the price of one set can reach 60,000 rubles.

Main characteristics	Advantages	disadvantages
Pulling and retracting force - up to 750 N (for two-scissor models - up to 1400)	The presence of a series of compact built-in devices that are integrated inside the profile	Difficult to work with weather blocks
Maximum leaf opening – up to 200 mm	The fanlight mechanism of outdoor mounting has a small body width (from 36 mm), which will allow it to be installed between 2 wings	Low speed opening and closing – up to 2.5 mm/s
Operating temperature range: -20 to +60 °C	The built-in drive model cannot be installed at the stage of window operation - such devices are mounted only during their manufacture at the enterprise

Professionally tuned actuators extend service life window fittings, because they provide smooth opening and closing of the wings, which occurs without sharp jerks with minimal loads on the mechanisms.

How to choose an electric drive for a window

In order for remote opening or any other active sash to greatly facilitate the operation of windows, it is necessary to choose the right model of the device. If you make a mistake, the doors may open too slowly and not completely. Also in this case, the risk of a quick breakdown of the drives themselves increases. As a result, when choosing, you need to focus primarily not on cost, but on the scope and tractive effort.

Scope of mechanical drives for windows

Because the drives are individual characteristics and different characteristics, they are not equally well suited to all kinds of structures. This table will help determine the optimal remote opening mechanism for all major window models.

When choosing scissor and chain drives, it is necessary to pay attention to the compatibility of these devices with devices that ensure the locking of the leaves along their perimeter.

Traction Calculation

At self-selection window automation will require a series of measurements and calculations. If this procedure is involved with work experience, such a need disappears.

Master for installation and configuration of automatic opening systems Rakitin Oleg: “For 7 years of my work, I have been constantly eliminating problems that arose after the installation of automation without the involvement of specialized specialists. It is in such cases installed devices can't handle the load. It is impossible to operate models selected “by eye”, since they will not only not be able to work correctly, but will also fail very quickly due to overloads. In order for any electric drive for PVC windows to perfectly cope with the tasks assigned to it, it is not enough to choose its type correctly. It will also be necessary to determine the optimal traction force. Each device indicates the maximum value of this parameter. However, this information is not enough, since the most powerful drives are more expensive. And there is no point in overpaying and purchasing a model with a margin.

1. For skylights and horizontal structures hatch type - F = (P / 2) * 10.


2. For windows with vertical opening transoms - F = (P / 2) * (C / H) * 10.


3. For designs with hinged down doors, the previous formula is applicable - F \u003d (P / 2) * (C / H) * 10, however, in this case, it will be necessary to calculate not pushing, but retracting force, and this nuance should be taken into account when choosing a drive model.

The designations for all the above formulas are the same and are deciphered as follows:

• P is the weight of the active element window construction(sash / transom / hatch);
• C - the maximum possible stroke when opening the transom / hatch / sash;
• H is the vertical height of the active element of the window structure;
• F - tractive effort.

Using these formulas, you can quickly get primary information about how much tractive effort is required. In the process of choosing an electric drive for windows, it is also recommended to use the tables that accompany almost all models. They contain basic information about the weight and dimensions of the active sashes or transoms, which the device is designed to open.

Total cost of window automation

The final price of an automatic control system depends on its complexity, as well as the type and number of electric drives chosen. This table will help you independently determine the approximate cost of automation for windows.

You also need to consider the cost of installing a control system. It directly depends on the volume and complexity of the work. On one's own complex installation not recommended.