KR20100101442A - Automatic ventilation system and method thereof - Google Patents

Abstract

PURPOSE: An automatic ventilation system and a ventilation method using the same are provided to automatically ventilate interior air according to the air quality and to simplify the installation and maintenance of the system. CONSTITUTION: An automatic ventilation system comprises a controller(100) and a plurality of ventilation devices(200). The controller includes an air quality sensor, a critical value control element, a control circuit part, and a radio signal transceiver. The air quality sensor senses the quality of interior air. The critical value control element controls a critical value with the manipulation of a user. The control circuit part generates a control signal when the air quality is over the critical value. The radio signal transceiver transmits the control signal through wireless communication to the ventilation devices. Each of the ventilation devices comprises a bar-shaped housing with an intake and a vent, a solar cell array installed on the rear side of the housing to convert sunlight into electric energy, a battery embedded in the housing and charged with power from the solar cell array to generate DC power, a radio signal receiver, and a ventilation fan which is driven with the DC power provided from the battery to carry out suction and discharge through the intake and the vent.

Description

Automatic ventilation system and ventilation method using the same {AUTOMATIC VENTILATION SYSTEM AND METHOD THEREOF}

The present invention relates to an automatic ventilation system for automatically ventilating by measuring indoor air quality and a ventilation method using the same.

In general, it is necessary to open the window for ventilation, but in this case, the sound insulation must be abandoned and the indoor temperature is balanced with the outside temperature within a short time, so it is not easy in summer or winter.

Nevertheless, according to the so-called well-being trend, there is a great interest in the effect of indoor air quality on health, and the importance of ventilation is increasing.

However, in general homes, unlike large buildings, it is common to not have a separate air conditioning or ventilation facility, and there is a difficulty in opening a window every time for ventilation. In particular, although there is a need for ventilation at night with a high CO2 concentration, there is a problem in that it is left without ventilation due to sleep.

The present invention has been made to solve the problems of the prior art as described above, it is an object of the construction and maintenance and easy to provide a ventilation system for automatically ventilating by detecting the air quality and a ventilation method using the same.

In order to achieve the above object, the automatic ventilation system of the present invention includes an air quality sensor 110 for detecting indoor air quality; A threshold adjuster 120 for adjusting a threshold by a user's manipulation; A control circuit unit 130 for generating a control signal when the air quality is out of the threshold value; And a wireless signal transmitter 140 for transmitting the control signal to a plurality of ventilation devices by a wireless communication method. And

The inlet and outlet mechanisms 211 and 212 are formed in the horizontal direction at the bottom of the front and the rear thereof, and the horizontal length is the same as the horizontal length of the inner side of the window, and the bar-shaped thin housing is installed adjacent to the upper side of the inner side of the window so as to face the interior. (Housing: 210); A solar cell array 220 installed on a rear surface of the housing and converting sunlight into electrical energy; A battery mounted inside the housing, charged with power from the solar cell array, and configured to generate a direct current electromotive force (Battery 230); A wireless signal receiver 240 for receiving a control signal from the controller by a wireless communication method; And a ventilation fan 250 mounted inside the housing and driven by the electromotive force supplied from the battery when the control signal is received from the controller to perform the intake and exhaust through the intake and exhaust mechanism. 200); characterized by having.

On the other hand, in order to achieve the above object, the automatic ventilation method of the present invention is a solar cell array of a plurality of ventilators to obtain electrical energy from sunlight to charge the battery (S101);

Step S102 of detecting, by the air quality sensor of the controller, indoor air;

Transmitting indoor control signals to a plurality of ventilation devices by a wireless communication method when the indoor air quality is out of the threshold (S103);

A plurality of ventilation devices receiving the control signal to drive the ventilation fan mounted therein by using the battery (S104); And

After a certain time elapses a plurality of ventilation devices to stop the driving of the ventilation fan (S105); characterized in that consisting of.

According to the present invention as described above, there is no need for a separate wiring, it is possible to install the ventilator directly to the window has the effect of easy construction and maintenance.

In addition, since the controller detects the air quality and is automatically controlled, there is an effect that the occupants do not have to operate for ventilation.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the automatic ventilation system according to the present invention.

1 is a reference diagram showing a connection relationship between a controller and a plurality of ventilation apparatuses, FIG. 2 is a functional block diagram illustrating the structure of the controller, FIG. 3 is a perspective view showing an internal configuration of the ventilation apparatus, and FIG. 4 is ventilation FIG. 5 is a perspective view illustrating a solar cell array of the device, and FIG. 5 is a reference view illustrating a shape of a ventilator installed in a window.

First, according to FIG. 1, the automatic ventilation system according to the present invention includes a controller 100 and a plurality of ventilation devices 200, and the controller 100 and the plurality of ventilation devices 200 are connected by a wireless communication method. Able to know.

Referring to FIG. 2, the controller 100 may include an air quality sensor 110, a threshold controller 120, a control circuit 130, and a wireless signal transmitter 140.

At this time, the air quality sensor 110 is mounted in the controller 100 to detect the indoor air quality. The air quality sensor 110 is preferably a CO2 sensor, O2 sensor may be used. The CO2 concentration can be used to measure the air quality of indoor air. In general, atmospheric CO2 concentration is known to be 350ppm to 400ppm, slightly lower in clean areas, and slightly higher in densely populated areas.

However, when occupants live for a long time without ventilation in an enclosed building, the CO2 concentration rises significantly, which is undesirable for the human body, thus causing a need for ventilation. If it exceeds about 1000ppm, it can be said that rapid ventilation is required.

Similar operation is possible when the O2 sensor is used as an air quality sensor. However, contrary to the case of CO2, when the O2 concentration drops below a certain level, the chest becomes stuffy and vomiting has a harmful effect on the human body. Therefore, when the temperature falls below a certain level, ventilation is required.

The threshold adjuster 120 adjusts the threshold by a user's manipulation, and the control circuit 130 generates a control signal when the air quality deviates from the threshold as a result of the detection of the air quality sensor 110.

The threshold adjustment unit 120 is implemented as, for example, a dial button, so that the user can freely change the threshold value that becomes the control signal generation condition while turning. When the air quality sensor 110 is a CO2 sensor, the threshold value may be adjusted to about 500 ppm to maintain the optimum air quality even if the ventilation occurs more or less frequently. You may.

Therefore, when the air quality sensor 110 is a CO2 sensor, the control circuit unit 130 generates a control signal when the CO2 concentration of the indoor air is higher than the threshold value determined by the threshold value adjusting unit 120. When the sensor 110 is an O2 sensor, the control circuit unit 130 generates a control signal when the O2 concentration of the indoor air is lower than the threshold determined by the threshold controller 120.

On the other hand, the control signal generated by the control circuit unit 130 is transmitted to the plurality of ventilation apparatuses 200 in a wireless communication manner by the wireless signal transmitter 140. In this case, the wireless communication method preferably adopts an RF (Radio Frequency) method, thereby easily overcoming communication disturbances and restrictions on distance due to indoor obstacles.

On the other hand, instead of automatically generating a control signal by the sensor, the controller 100 generates a control signal once every predetermined time according to the user's operation (for example, once every 6 hours), or every day at a predetermined time. It is also possible to generate a control signal (eg 3:00 pm daily).

Referring to FIGS. 3 and 4, the ventilation device 200 includes a housing 210, a solar cell array 220, a battery 230, a wireless signal receiver 240, and a ventilation fan 250. It can be seen that the provided.

As shown in FIG. 5, the housing 210 is installed to be adjacent to the upper side of the inner side of the indoor window pane 1, which is a concept of a window pane, which is different from the window frame 2. According to FIG. 1, it can be confirmed that the window frame 2 is formed in the building wall, and three window pairs 1 are inserted and installed in the window frame 2, respectively.

The housing 210 can be installed in the window 1 instead of the window frame 2. First, the wiring 210 does not need a separate power supply or control signal transmission. Second, the bar is horizontally long. It is thin in shape, and thanks to the structure that can open and close the window even when the housing 210 is installed on the window. Thus, by installing in the window (1) it is possible to easily install without breaking or deforming the wall or window frame as much as possible after the completion of the building, it is possible to prevent the room from becoming dark because the window is not largely covered.

The housing 210 is preferably installed to be adjacent to the upper bottom of the window 1, the bottom may be installed to be directly adjacent to the glass block, not the window (1). As a result, the portion covered by the ventilator 200 is further reduced to simultaneously maintain indoor brightness without overlooking the aesthetics.

On the other hand, such a housing 210 is formed in the transverse direction in the inlet and exhaust mechanism 211 is formed in the horizontal direction, the back side is elongated in the horizontal direction. Ventilation is performed through the intake and exhaust vents 211 and 212 by the ventilation fan 250 as described below. The intake and exhaust vents 211 at the bottom of the front are lower in front of the front as shown in FIG. Is formed.

Meanwhile, the ventilator 200 includes a solar cell array 220 that converts sunlight into electrical energy on the rear surface of the housing 210. As illustrated in FIG. 4, the solar cell array further includes a light collecting plate 221, a guide bar 222, and an angle adjusting bar 223.

The light collecting plate 221 is provided with the housing 210 in parallel, as shown in FIG. 4, so as to be parallel to the rear surface of the housing 210 when viewed from above. Meanwhile, according to (b) of FIG. 4, the light collecting plate 221 protrudes from the rear side as compared with (a) of FIG. 4, and the guide bar 222 is pulled outward from the inside of the housing 210. have. As a result, the light collecting plate 221 may collect the light away from the rear surface of the housing 210 by a predetermined distance. On the other hand, the angle with the solar light has a great effect on the efficiency of the solar cell can be tilted using the angle adjustment bar 223 as shown in Figure 4 (b). Typically, it is enough to adjust the angle at the time of installation of the ventilator 200, but if necessary, the angle may be partially adjusted.

Meanwhile, the electrical energy obtained by the solar cell array 220 is used to charge the battery 230. Since the battery 230 needs to be charged every day, it is preferable to use a lithium ion battery or a lithium ion battery. On the other hand, instead of driving the ventilation fan 250 directly with the electromotive force obtained from the solar cell array 220, having a separate battery 230 is because the frequent occurrence of the electromotive force during the day to be driven at night to be.

On the other hand, in addition to this may occur when the charging by the solar cell array 220 is not easy due to seasonal conditions (for example, the rainy season) can be implemented to charge the battery 230 by connecting a separate adapter. .

On the other hand, the wireless signal receiver 240 receives a control signal from the controller 100 by a wireless communication method. The wireless communication method is preferably implemented by RF (Radio Frequency) method as described above.

When the control signal is received from the wireless signal receiver 230, the ventilation fan 250 is driven using the electromotive force supplied from the battery 230 to perform the intake and exhaust through the intake and exhaust vents 211 and 212.

Figure 5 (a) is a view of the window (1) and the ventilation device 200 from the inside of the building, Figure 5 (b) is a view of the window (1) and the ventilation device 200 from the outside of the building, According to the ventilation fan 250, the air intake may be exhausted through the inner intake and exhaust ports 211, and exhausted through the outer intake and exhaust ports 212. It can also introduce outdoor air into the room.

That is, it is possible to simply change whether the ventilator 200 acts as an intake apparatus or an exhaust apparatus depending on which ventilator 250 is installed in the ventilator 200.

Ventilation apparatus 200 is completed by assembling the ventilation fan 250 when mass production and then installed in the window sill ventilation fan 250 for the convenience of construction and repair in case of failure in the construction of the ventilation apparatus 200 in this way It shall be removable and easily removable.

To this end, the ventilation fan 250 is preferably fixed to an inner surface of the housing 210 made of a metal material by a magnet attached to one surface thereof. On the other hand, instead of using a separate wiring for the power connection by forming a contact (Contact Pad) on one surface of the ventilation fan, by physically contacting the contact formed on the inner surface of the housing 210 when fixing the ventilation fan 250 by a magnet Electrical connections can be made. Considering the power consumption of the ventilation fan 250 and the capacity of the battery 230, the risk of this structure is extremely low, it is possible to maximize the convenience during construction and repair while maintaining safety by this configuration.

Hereinafter, with reference to the accompanying drawings a ventilation method using an automatic ventilation system having the above configuration will be described in detail. However, descriptions of matters overlapping with those described above will be omitted.

6 is a flowchart illustrating a time series of the ventilation method using the automatic ventilation system according to the present invention.

Referring to FIG. 6, first, a solar cell array 220 of a plurality of ventilators 200 obtains electrical energy from sunlight to charge a battery (S101).

Then, the air quality sensor 110 of the controller 100 detects the air quality of the indoor air (S102).

At this time, when the indoor air quality deviates from the predetermined threshold, the controller 100 generates a control signal and transmits the control signal to the plurality of ventilation apparatuses 200 by the wireless communication method (S103). When the air quality sensor 110 is a CO2 sensor, the control signal is generated when it is raised above a predetermined threshold value. In the case of the O2 sensor, when the air quality sensor 110 is lowered below a predetermined threshold value, a control signal is generated.

A plurality of ventilation apparatuses 200 having received the control signal drive the ventilation fan mounted therein by using the pre-charged battery (S104).

After the ventilation fan 250 is driven for a predetermined time, the plurality of ventilation devices 200 respectively stop driving of the ventilation fan 250 (S105). Ventilation fan 250 is speculative air volume is determined in accordance with the size of the indoor space can be predicted whether the ventilation will be achieved over a certain level when driving for about a few minutes. Therefore, since the ventilation efficiency is lowered when continuously driving for a predetermined time or more, efficient operation is possible by continuously driving for a predetermined time and automatically stopping once when driving once.

Although the present invention has been described in detail with reference to some embodiments, the present invention is not limited to these embodiments and can be freely modified and practiced within the scope of the matters described in the claims.

1 is a reference diagram showing the connection relationship between the controller of the automatic ventilation system and a plurality of ventilation apparatus according to the present invention,

2 is a functional block diagram illustrating the structure of a controller according to the present invention;

Figure 3 is a perspective view showing the internal configuration of the ventilation apparatus according to the present invention,

4 is a perspective view illustrating a solar cell array of the ventilator according to the present invention;

Figure 5 is a reference diagram illustrating the shape of the ventilation apparatus installed in the window according to the present invention,

6 is a flowchart illustrating a time series of the ventilation method using the automatic ventilation system according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100: controller

110: air quality sensor 120: threshold adjustment unit

130: control circuit unit 140: wireless signal transmission unit

200: ventilation device

210: housing 220: cell array

230: battery 240: wireless signal receiver

250: ventilation fan

Claims (11)

An air quality sensor 110 for detecting indoor air quality; A threshold adjuster 120 for adjusting a threshold by a user's manipulation; A control circuit unit 130 for generating a control signal when the air quality is out of the threshold value; And a wireless signal transmitter 140 for transmitting the control signal to a plurality of ventilation devices by a wireless communication method. And The inlet and outlet mechanisms 211 and 212 are formed in the horizontal direction at the bottom of the front and the rear thereof, and the horizontal length is the same as the horizontal length of the inner side of the window, and the bar-shaped thin housing is installed adjacent to the upper side of the inner side of the window so as to face the interior. (Housing: 210); A solar cell array 220 installed on a rear surface of the housing and converting sunlight into electrical energy; A battery mounted inside the housing, charged with power from the solar cell array, and configured to generate a direct current electromotive force (Battery 230); A wireless signal receiver 240 for receiving a control signal from the controller by a wireless communication method; And a ventilation fan 250 mounted inside the housing and driven using an electromotive force supplied from the battery when receiving a control signal from the controller to perform an intake and exhaust through the intake and exhaust mechanism. Automatic ventilation system characterized in that it comprises; The method of claim 1, The air quality sensor 110 is a CO2 sensor, and the control circuit 130 automatically generates a control signal when the CO2 concentration of the indoor air is higher than a threshold determined by the threshold controller 120. Ventilation system. The method of claim 1, The air quality sensor 110 is an O2 sensor, and the control circuit unit 130 generates a control signal when the O2 concentration of the indoor air is lower than a threshold value determined by the threshold value adjusting unit 120. Automatic ventilation system. The method of claim 1, The wireless communication method is an automatic ventilation system, characterized in that the RF (Radio Frequency) method. The method of claim 1, The controller (100) is an automatic ventilation system, characterized in that for generating a control signal every predetermined time or every predetermined time according to the user's operation. The method of claim 1, Some of the plurality of ventilation apparatuses 200 intake indoor air through the intake and exhaust vents 211 at the bottom of the front of the housing 210, and exhaust the exhaust air through the intake and exhaust vents 212 on the rear thereof, and a part of the rear of the housing 210. Intake air to the outside through the intake and exhaust port 212, the automatic ventilation system, characterized in that the flow into the room through the intake and exhaust (211) in the lower front. The method of claim 1, The ventilation fan 250 is fixed to the inside of the housing 210 by a magnetic force attached to a magnet on one surface, the contact pad formed on one surface of the ventilation fan when fixed by the magnetic force is the inner surface of the housing 210 Automatic ventilation system, characterized in that electrically connected to the contact formed in the. The method of claim 7, wherein The housing 210 is made of a structure that is openable on one side, the automatic ventilation system, characterized in that switching between the intake or exhaust type by replacing the ventilation fan 250 after opening one side of the housing. The method of claim 1, The housing 210 is an automatic ventilation system, characterized in that the bottom surface is installed directly adjacent to the glass block. The method of claim 1, The solar cell array 220 includes a light collecting plate 221 provided to be parallel to the rear surface of the housing 210; A guide bar 222 for protruding the light collecting plate from the rear surface of the housing; And Auto-ventilation system, characterized in that it further comprises; angle adjustment bar (223) for adjusting the angle of the light collecting plate and sunlight. A solar cell array of a plurality of ventilators to obtain electrical energy from sunlight to charge a battery (S101); Step S102 of detecting, by the air quality sensor of the controller, indoor air; If the indoor air quality is out of the threshold value, the controller transmits a control signal to a plurality of ventilation devices by a wireless communication method (S103); A plurality of ventilation devices receiving the control signal to drive the ventilation fan mounted therein by using the battery (S104); And And a plurality of ventilation apparatuses stop driving the ventilation fan after a predetermined time has elapsed (S105).

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