KR20120012023A - A control method of a ventilating device - Google Patents

Abstract

PURPOSE: A control method of an air conditioner is provided to save electric charges because an air conditioner is flexibly controlled in consideration of indoor temperature conditions and electric charges. CONSTITUTION: A control method of an air conditioner is as follows. Information related to an electric charge is acknowledged. A present electric charge is decided whether to be over a constant criterion(S1202). Whether cooling or heating operations are performed by another air conditioner is decided. A supply fan or an exhaust fan is intermittently operated based on a difference of the indoor and outdoor temperatures when the present electric charge is over the constant criterion and cooling or heating operations perform.

Description

A control method of a ventilating device

The present invention relates to a control method of a ventilation device, and in detail, is installed in an indoor space to perform ventilation of each indoor space, the ventilation which can flexibly control the power consumption according to the environment of the indoor space and the level of power bills It relates to a control method of the device.

Electric power for the operation of electrical appliances such as home appliances used in homes or office equipment used in offices is generally supplied through a power plant operated by KEPCO, a transmission line, and a wiring line. It is characteristic.

It has the characteristics of a central power source, not a distributed power source, a radial structure that spreads from the center to the periphery, and is characterized by a unidirectional supplier center rather than a consumer center.

In addition, the technology base is analog or electromechanical, there is a problem that must be restored manually in case of an accident, and the equipment must also be restored manually.

The price information for electricity was not only available in real time, but only limitedly through the power exchange, and since the price system is also a de facto fixed price system, incentives such as incentives to consumers through price changes cannot be used. There was a problem.

In order to solve these problems and improve energy efficiency, research on smart grids (intelligent power grids) has been actively conducted recently.

The smart grid refers to the next generation power system and its management system that are realized through the convergence and complex of modern power technology and information communication technology.

As mentioned above, the current grid is a centralized, producer-controlled, vertical, centralized network, whereas the smart grid is less focused on suppliers and horizontal, collaborative to enable interaction between consumers and suppliers. It is an enemy, decentralized network.

The smart grid is sometimes called the "energy internet" because all electrical devices, power storage devices and distributed power supplies are networked to enable interaction between consumers and suppliers.

On the other hand, in order to realize such a smart grid from the perspective of a power consumer such as a home or a building, it is necessary to bidirectionally communicate with a power supply source and power information, instead of unilaterally receiving power from an individual home appliance and a network to which a plurality of home appliances are connected. And the need for new devices for this two-way communication.

The present invention is installed in the indoor space to perform the temperature control and ventilation of each indoor space, the control method of the ventilation device that can save the power bill by elastically controlling the power consumption according to the environment and the level of the power bill of the indoor space The purpose is to provide.

The present invention for achieving this object comprises the steps of recognizing the power bill information; Determining whether the current power rate is higher than or equal to a predetermined criterion; Determining whether a cooling operation or a heating operation is performed by a separate air conditioner; The present invention provides a control method of a ventilation device comprising an intermittent operation of an air supply fan or an exhaust fan based on a difference between an indoor temperature and an outdoor temperature when a current electric charge exceeds a predetermined standard and cooling or heating operation is performed.

When the cooling operation is performed by the separate air conditioner and the indoor temperature is higher than the outdoor temperature, the air supply fan of the ventilation device performs the intermittent operation to perform the operation and the stop alternately, and the exhaust fan continuously It is characterized by controlling to drive.

The operation time of the air supply fan is characterized in that it is shorter than the stop time.

When the cooling operation is performed by the separate air conditioner and the room temperature is lower than the outdoor temperature, the air supply fan and the exhaust fan of the ventilation device are stopped.

When the heating operation is performed by the separate air conditioner, and the indoor temperature is lower than the outdoor temperature, the exhaust fan of the ventilation device to perform the intermittent operation to perform the operation and stop alternately, the air supply fan is continuously It is characterized by controlling to drive.

The operation time of the exhaust fan is characterized in that it is shorter than the stop time.

When the cooling operation is performed by the separate air conditioner and the room temperature is lower than the outdoor temperature, the air supply fan and the exhaust fan of the ventilation device are stopped.

In addition, the present invention comprises the steps of recognizing the power bill information; Provided is a control method of a ventilation device, which comprises the steps of intermittently operating an air supply fan or an exhaust fan while operating a heat transfer unit when a current electric charge exceeds a predetermined standard.

Determining whether the indoor temperature is lower than a predetermined reference temperature;

When the room temperature is less than the predetermined reference temperature, the air supply fan of the ventilation device performs the intermittent operation to perform the operation and stop alternately, the exhaust fan is characterized in that the continuous operation.

When the room temperature is above a predetermined reference temperature, the exhaust fan of the ventilator performs an intermittent operation to alternately run and stop, and the air supply fan is characterized in that the continuous operation is performed.

The method may further include determining whether there are a plurality of ventilation devices, and when there are a plurality of ventilation devices, some of the ventilation devices maintain an operating state, and the other ventilation devices are stopped.

The method may further include determining whether a predetermined time has elapsed. When the predetermined time has elapsed, the ventilation device in operation is stopped and the ventilation device is stopped.

In the intermittent operation of the exhaust fan or the supply fan is characterized in that the operating time is shorter than the stop time.

According to the present invention, it is possible to flexibly adjust the ventilation device in consideration of the room temperature conditions and the power bill, thereby saving the power bill.

In addition, the control of the ventilation device is not performed manually, but is performed automatically, thereby increasing user convenience during power saving operation.

Specifically, when the air conditioner is in the cooling mode, when the indoor air temperature is higher than the outdoor air temperature, the indoor temperature may be rapidly lowered to a desired temperature by supplying the outdoor air and discharging the indoor air.

On the contrary, when the air conditioner in the heating mode, the indoor air temperature is lower than the outdoor air temperature, there is an advantage that can quickly increase the indoor temperature by supplying the outdoor air, discharge the indoor air.

And, while performing the temperature control, it is possible to control the operation of the ventilation device to reduce the power bill.

On the other hand, when the building is equipped with a plurality of ventilation devices, not all the plurality of ventilation devices are operated in the on-peak time period, but only a part of the operation can be reduced by stopping some of the power bills.

In addition, by having the stop state and the operating state alternately, there is an advantage that the ventilation for each indoor space can occur evenly.

1 is a schematic diagram of a smart grid.
Figure 2 is a schematic diagram showing that the ventilation device of the present invention installed in the indoor space with an air conditioner.
Figure 3 is a control block diagram when installed in the indoor space with the ventilator and the air conditioner of the present invention.
Figure 4 is a schematic diagram showing that the ventilation device of the present invention is installed in the indoor space.
5 is a control block diagram of the ventilation device of the present invention in an indoor space.
6 is a schematic diagram showing the operation of the ventilator when the indoor temperature is higher than the outdoor temperature in the cooling mode.
7 is a schematic diagram showing the operation of the ventilator when the indoor temperature is lower than the outdoor temperature in the heating mode.
8 is a schematic diagram showing the operation of the ventilator when the indoor temperature is lower than the outdoor temperature in the cooling mode or the indoor temperature is higher than the outdoor temperature in the heating mode.
9 is a schematic diagram showing the operation of the ventilator when the room temperature is lower than the reference temperature.
Fig. 10 is a schematic diagram showing the operation of the ventilation device when the room temperature is higher than the reference temperature.
11 is a control flowchart when the ventilation device and the air conditioner are installed together.
12 and 13 are control flow charts when the ventilation device is installed.
14 is a schematic diagram of a ventilator composed of a total heat exchanger and a ventilator.
Fig. 15 is a schematic diagram of a ventilation device composed of a total heat exchanger, a ventilation purifier, and a distributor.
Fig. 16 is a schematic diagram of a ventilation device composed of a total heat exchanger, a ventilation purifier, and a humidifier.
17 is a graph showing a change in power rates over time.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a schematic diagram of a smart grid, which includes a power plant that generates power through thermal, nuclear, or hydro, a solar power plant using wind or wind power as renewable energy, and a wind power plant. .

In addition, the thermal power plant or nuclear power plant or hydroelectric power station transmits power to a power station through a transmission line, and the power station sends electricity to a substation so that the electricity is distributed to a demand destination such as a home or an office.

The electricity produced by the renewable energy is also sent to substations to be distributed to each customer. The electricity transmitted from the substation is distributed to the office or each household via the power storage device.

Even in homes that use the Home Area Network (HAN), it is possible to supply electricity by producing electricity by itself through fuel cells mounted on solar power or PHEV (Plug-in Hybrid Electric Vehicle). The remaining electricity can also be sold outside.

In addition, a smart meter is installed in the office or home to identify the real-time power and electricity bills used by each customer. Through this, the user is aware of the amount of electricity and the electricity bill currently used, and according to the situation, the power consumption or the electricity bill can be determined according to the situation. Measures can be taken to reduce it.

On the other hand, since the power plant, power station, storage device and the source of demand are bidirectional communication, only the unilaterally receive electricity from the source of demand, and notify the storage, power station, and power plant of the demand source to produce electricity according to the situation of the source of demand. Electric distribution can be performed.

Meanwhile, in the smart grid, an energy management system (EMS) that is responsible for real-time power management and real-time prediction of power consumption and a metering infrastructure (AMI) for measuring power consumption in real time are provided. It plays a pivotal role. Wherein the smart meter forms part of the metrology infrastructure.

The measurement infrastructure under the smart grid is a foundation technology that integrates consumers based on open architecture, enabling consumers to efficiently use electricity, and providing power providers with the ability to operate systems efficiently by detecting system problems. to provide.

Here, the open architecture, unlike a general communication network, refers to a standard that allows all electric devices to be connected to each other regardless of which manufacturer the electric device is manufactured in a smart grid system.

Thus, the metrology infrastructure or smart meter used in the smart grid enables a consumer friendly efficiency concept such as "Prices to Devices."

In other words, the real-time price signal of the power market is relayed through the energy management device (EMS) and smart meter installed in each home, and the energy management device (EMS) and the smart meter communicate with each electric product and control the user. By looking at the device (EMS) or the smart meter, the power information of each electric product is recognized and power information processing such as power consumption or electric charge limit setting can be performed on the basis of this, thereby saving energy and cost.

Control of each electrical appliance may be performed by communication between the energy management device (EMS) and the smart meter.

The energy management device (EMS) is a local energy management device (Local EMS) used in the office or home, and the information collected from the local energy management device (EMS) by bidirectional communication with the local energy management device (Local EMS) It is preferably composed of a central EMS for processing.

The smart grid enables real-time communication of power information between suppliers and consumers, enabling "real-time grid response" to be realized, thereby reducing the high cost of meeting peak demand.

2 is a structural diagram of an air conditioner 10 and a ventilation device 200 installed in a building connected to a smart grid.

 The air conditioner 10 is divided into an indoor unit 100 and an outdoor unit 400. The air conditioner 10 and the ventilation device 200 are controlled to operate in conjunction with power rate information.

The air conditioner 10 and the ventilator 200 may receive power information such as power charge information from the outside, and measure the power consumption and power charge in the home in real time with a smart meter 20. It is connected to the smart meter 20 and is connected to the energy management device (EMS) 30 to communicate with one or more indoor units or ventilation devices and control their operation.

Here, the energy management device (EMS) 30 is provided in the form of a terminal having a display unit for displaying the current power consumption state and the external environment (temperature, humidity), and an input unit that can be operated by the user. desirable.

In particular, the energy management device (EMS) 30 is installed in the indoor unit 100, ventilator 200, and the outside of the building installed in a plurality of indoor space (S1 ~ S4) through the network network inside the building. It is connected to the outdoor unit 400 and performs two-way communication with them, and serves to control them.

Communication inside the building can be either wireless or via a wire such as a PLC.

In addition, the indoor unit 100 and the ventilator 200 disposed in a specific indoor space may also be arranged to be connected to the indoor unit 100 and the ventilator 200 arranged in another indoor space to enable communication. .

The power supply source 50 of the building is a system power source 51 capable of supplying electric power by general power generation equipment (fire power, nuclear power, hydropower), or renewable energy 52 such as a solar power plant or a wind power plant. )

 In addition, an auxiliary power source 53 such as a fuel cell provided in a building may be another power supply source.

Typically, the power supply 50 is connected to the smart meter 20 and the energy management device (EMS) 30 to provide power information to them, and the information provided in this way is controlled by the air conditioner 10. It is used as basic information for.

The indoor unit 100 serves to supply cold air to each indoor space through heat exchange with the refrigerant, and to supply warm air to the indoor space.

The ventilation device 200 serves to exchange and exchange air and outdoor air in each indoor space.

An air duct 300 connected to the ventilation device 100 provided in the indoor spaces S1 to S4 is provided inside the building, and the air duct 300 is a first guide of outdoor air in the direction of the indoor space. An air duct 310 and a second air duct 320 for guiding indoor air to the outside.

In addition, a supply duct 330 is provided between the first air duct 310 and each of the ventilation devices 200 to guide the air inside the first air duct 310 to the ventilation device 200.

At the inlet end of the first air duct 310 is provided an inlet control device 311 that can selectively block the inflow of outdoor air. In addition, the supply duct 330 is also provided with a supply control device 331 that can selectively control the communication with the first air duct (310).

A discharge duct 340 is provided between the second air duct 320 and the respective ventilation devices 200 to guide the air discharged from the ventilation device 200 to the second air duct 320.

The outlet end of the second air duct 320 is provided with an outlet control device 321 that can selectively block the outflow of air to the outside.

Inside the ventilator 200, the heat exchanger 210, the air supply fan 220 and the exhaust fan 230, and an intake valve 240 for selectively controlling the flow of intake air and the exhaust air An exhaust valve 250 is provided for selectively controlling the flow.

When the air supply fan 220 is operated, the air passing through the supply duct 330 flows into the ventilator 200 and then passes through the inside or outside of the heat exchanger 210 to supply the air supply fan 220. It is supplied to the indoor space (S1 ~ S4) through.

In addition, when the exhaust fan 230 operates, after the air inside the indoor spaces S1 to S4 flows into the ventilator 200, it passes through the inside or the outside of the heat exchanger 220. It moves to the outdoor space through the exhaust fan 230.

3 is a control block diagram showing a connection state between the air conditioner 10 and the power supply source 50, the smart meter 20, and the energy management device (EMS) 30 according to the present invention. .

As described above, the power supply source 50 is composed of the grid power source 51, the renewable energy 52, and the auxiliary power source 53, and under the control of the energy management device 30. Power is supplied to the indoor unit 100, the ventilation device 200, and the outdoor unit 400.

Here, the indoor fan 100 is provided with an indoor fan 120 for guiding air exchanged with the indoor heat exchanger 110 to the indoor space. Here, the indoor fan 120 is preferably the rotation speed is adjusted to adjust the air volume.

In the case of the ventilator 200, as described above, the heat exchanger 210, the air supply fan 220, the exhaust fan 230, the intake valve 240, the exhaust valve 250 is included. .

The outdoor unit 400 includes an outdoor heat exchanger 410 for compressing a refrigerant, an outdoor fan 420 for guiding air to the outdoor heat exchanger, and a compressor 430.

In the indoor unit 100, the rotation speed of the indoor fan 120 is adjusted according to the adjustment of the power supply to adjust the air volume.

In the case of the ventilator 200, the air supply fan 220 and the exhaust fan 230 are introduced into each indoor space according to the on / off and the rotation speed of the exhaust fan 230, or are discharged from the indoor space S. The amount of air being fed is controlled.

In the outdoor unit 400, the supply amount of the refrigerant in the compressor 430 is adjusted according to the power supply amount, and the rotation speed of the outdoor fan 420 is adjusted to condense the refrigerant in the outdoor heat exchanger 410. Is adjusted.

4 is a structural diagram of a building in which only the ventilation device 200 is installed in each indoor space S1 to S4, and FIG. 5 is a control block diagram of such a building.

4 and 5 are all the same configuration except for the indoor unit 100 and the outdoor unit 200 compared to FIGS. 2 and 3 will be omitted a detailed description thereof.

 FIG. 6 illustrates a control operation of the ventilation device 200 when the air conditioner 10 operates in a cooling mode and the room temperature is higher than the outdoor temperature.

In the power rate graph shown in FIG. 17, the operation of the ventilator 200 varies according to an on-peak time period in which the power rate is higher than or equal to a predetermined criterion and an off-peak time interval in which the power rate is lower than or equal to the predetermined criterion.

When the current time is the off-peak period, the air conditioner 10 operates in the cooling mode, and the air supply valve 240 and the exhaust valve 250 are opened in the ventilation device 200. As the air supply fan 220 and the exhaust fan 230 provided in the ventilation device 200 are turned on, the air supply fan 220 rotates to draw outside air and discharges the air in the indoor space to the outside.

However, when the current time falls within the on-peak time period in which the power rate becomes more than a predetermined standard, it is necessary to save the power rate.

Therefore, in this case, the output of the air supply fan 220 and the exhaust fan 230 is reduced to the minimum level. That is, when the output of the air supply fan 220 and the exhaust fan 230 is divided into a strong wind, a middle wind, and a weak wind it is necessary to control to operate in a mild wind.

In addition, the exhaust fan 230 is controlled to continuously operate, but in the case of the air supply fan 220, the intermittent operation, that is, the operating state (on) and the stop state (off) is alternately performed.

As such, the reason for continuously operating the exhaust fan 230 and intermittent operation of the air supply fan 220 is to continuously discharge the indoor air having a higher temperature than outdoor air to the outside to quickly discharge the temperature therein. This is to reduce.

In addition, the intermittent operation of the air supply fan 220 can reduce the power consumption than when continuously operating the air supply fan 220, it is also helpful in reducing the power bill.

On the other hand, in order to maximize the effect of reducing the power bill, it is preferable that the operating time of the air supply fan 220 is shorter than the stop time within the on-peak time period.

As shown in FIG. 7, on the other hand, when the air conditioner 10 is driven in a heating mode, when the indoor temperature is lower than the outdoor temperature, there is a need to introduce external air into the room.

When the current time is the off-peak period, the air supply valve 240 and the exhaust valve 250 are opened in the ventilation device 200, and the air supply fan 220 and the air supply fan 220 provided in the ventilation device 200 are opened. When the exhaust fan 230 is turned on, the exhaust fan 230 rotates to draw outside air, and exhausts the air in the indoor space to the outside.

However, if the current time falls within the on-peak time period in which the electricity charge is above a predetermined standard, it is necessary to save the electricity charge.

Therefore, in this case, the output of the air supply fan 220 and the exhaust fan 230 is reduced to the minimum level.

That is, when the output of the air supply fan 220 and the exhaust fan 230 is divided into a strong wind, a middle wind, and a weak wind it is necessary to control to operate in a mild wind.

In addition, the air supply fan 220 is controlled to continuously operate, but in the case of the exhaust fan 230, the intermittent operation, that is, the operating state (on) and the stop state (off) is performed alternately.

As such, the reason for the continuous operation of the air supply fan 220 and the intermittent operation of the exhaust fan 230 is to continuously supply outdoor air having a higher temperature than the indoor air to the indoor space to quickly supply the indoor temperature. To increase.

In addition, the intermittent operation of the exhaust fan 230 can reduce the power consumption than the continuous operation of the exhaust fan 230, thereby helping to reduce the power bill.

On the other hand, in order to maximize the effect of reducing the power bill, it is preferable that the operating time of the exhaust fan 230 is shorter than the stop time within the on-peak time period.

6 and 7 illustrate a case in which the cooling mode and the heating mode are performed for all indoor spaces, the cooling mode is performed in some indoor spaces and the heating mode may be performed in some indoor spaces.

In this case, the ventilation device may be independently driven in consideration of each mode and temperature conditions. That is, the operation of the ventilator shown in FIGS. 6 and 7 may occur simultaneously.

That is, in some indoor spaces operated in the cooling mode, the air supply fan intermittently runs and the exhaust fan continues to operate, while in other indoor spaces operated in the heating mode, the air supply fans continue to operate and the exhaust fans operate intermittently. can do.

FIG. 8 illustrates a state in which the indoor temperature is lower than the outdoor temperature when the air conditioner operates in the cooling mode, or when the air conditioner operates in the heating mode.

Since the purpose of the cooling mode itself is to make the indoor temperature lower than the outdoor temperature, it is necessary to suppress the increase in the indoor air temperature due to the large inflow of outdoor air.

Therefore, the operation of the air supply fan 220 and the exhaust fan 230 is turned off to prevent a large amount of outdoor air from flowing into the indoor space and a large amount of indoor air from flowing into the outdoor space.

When natural ventilation is not required, the air supply valve 240 and the exhaust valve 250 are preferably in a closed state. If natural ventilation is required, the air supply fan 220 and the air exhaust fan 230 are provided. It is preferable that the air supply valve 240 and the exhaust valve 250 in the open state in the off state.

9 illustrates the flow of air in a state where only a ventilation device is disposed in a building.

First, it is determined whether the current time belongs to the on-peak time period, and if the current off-peak time period is current, the current operation mode is maintained.

However, if it is determined that it belongs to the off-peak time period, at this time, when the indoor temperature is lower than the predetermined reference temperature, outdoor air is introduced into the indoor space to increase the indoor temperature, and the indoor air is discharged to the outside.

In this case, the reference temperature may be an outdoor temperature or a predetermined specific temperature.

In this case, if there is only one ventilation device to be controlled, the exhaust fan 230 continuously performs the operation and the air supply fan 220 performs the intermittent operation in order to actively discharge the indoor air.

That is, the air supply fan 220 alternately runs and stops in the on-peak time section. In addition, it is preferable that the stop time is longer than the operation time for power saving.

However, if there are a plurality of ventilation apparatuses to be controlled and are arranged in a plurality of indoor spaces S1 to S4, the ventilation apparatuses arranged in some indoor spaces become an operating state, and the ventilation apparatuses arranged in other indoor spaces are in a stopped state. Becomes

In the ventilation device which is in a stopped state, the air supply fan 220 and the exhaust fan 230 stop rotation. When natural ventilation is required, the air supply valve 240 and the exhaust valve 250 are opened, but when the natural ventilation is not necessary, the air supply valve 240 and the exhaust valve 250 are closed.

At this time, the ventilation device in operation as described above, the air supply fan 220 is intermittent operation, the exhaust fan 230 performs the continuous operation.

Then, when a predetermined time elapses, the ventilator in operation is stopped, and the ventilator in operation is in an operating state.

In addition, the air supply fan 220 performs the intermittent operation, and the exhaust fan 230 performs the continuous operation, as described above, in the ventilator that is in the operating state.

That is, in Fig. 9, while initially performing the ventilation operation on the indoor spaces of S1 and S3, when a predetermined time elapses, the ventilation operation for S1 and S3 is stopped, and the ventilation operation is performed on the indoor spaces of S2 and S4. will be.

Figure 10 also shows the flow of air in a state in which only the ventilator is arranged in the building, only the temperature condition is different compared to FIG.

Even in this state, first, it is determined whether the current time belongs to the on-peak time period, and if the current off-peak time period is current, the current operation mode is maintained.

It is determined that the current time belongs to the on-peak time period. If the indoor temperature is higher than the predetermined reference temperature, outdoor air is introduced into the indoor space to discharge the indoor temperature, and indoor air is discharged to the outside.

Here, the reference temperature may be a specific temperature set or may be an outdoor temperature.

In this case, if there is only one ventilation device to be controlled, the air supply fan 220 continuously performs the operation and the exhaust fan 230 performs the intermittent operation in order to actively discharge the indoor air.

That is, the exhaust fan 230 alternately runs and stops in the on-peak time section. In addition, it is preferable that the stop time is longer than the operation time for power saving.

However, if there are a plurality of ventilation apparatuses to be controlled and are arranged in a plurality of indoor spaces S1 to S4, the ventilation apparatuses arranged in some indoor spaces become an operating state, and the ventilation apparatuses arranged in other indoor spaces are in a stopped state. Becomes

In the ventilation device which is in a stopped state, the air supply fan 220 and the exhaust fan 230 stop rotation. When natural ventilation is required, the air supply valve 240 and the exhaust valve 250 are opened, but when the natural ventilation is not necessary, the air supply valve 240 and the exhaust valve 250 are closed.

At this time, the ventilation device in operation as described above, the exhaust fan 230 is an intermittent operation, the air supply fan 220 performs a continuous operation.

Then, when a predetermined time elapses, the ventilator in operation is stopped, and the ventilator in operation is in an operating state.

In addition, the air supply fan 220 continues to operate, and the exhaust fan 230 performs an intermittent operation, as described above, in the ventilator that is in the operating state.

That is, in FIG. 10, while initially performing the ventilation operation for the indoor spaces of S1 and S3, when a predetermined time elapses, the ventilation operation for S1 and S3 is stopped, and the ventilation operation is performed for the indoor spaces of S2 and S4. will be.

11 is a control flowchart when an air conditioner and a ventilation device are installed in a building at the same time.

First, when the air conditioner and the ventilation device operate (S1101), it is determined whether the current on-peak time section (S1102). In other words, it is determined whether the current electric charge is above a predetermined standard.

If it is determined that the current time is the on-peak time interval, it is determined whether the current air conditioner is set to the cooling mode (S1102).

If it is determined that the off-peak time period, the current operation mode is maintained (S1103), if it is determined that the on-peak time interval it is determined whether the air conditioner is set to the cooling mode (S1104).

When the air conditioner is set to the cooling mode, it is determined whether the indoor temperature is higher than the outdoor temperature. If the indoor temperature is higher than the outdoor temperature, the ventilation is performed to introduce relatively cool outdoor air and discharge the hot indoor air to the outside. While driving the device, in order to save power, the air supply fan is intermittently operated and the exhaust fan is continuously operated (S1106).

However, when the indoor temperature is lower than the outdoor temperature, since the active ventilation is unnecessary, the air supply fan and the exhaust fan are stopped (S1107).

On the other hand, in step S1104, if the air conditioner is not set to the heating mode is recognized as the heating mode (S1108).

In this heating mode, it is determined whether the indoor temperature is lower than the outdoor temperature (S1109). As a result of determination, when the indoor temperature is lower than the outdoor temperature, it is necessary to introduce outdoor air having a high temperature and discharge indoor air having a low temperature.

However, in order to save power, the air supply fan is continuously operated in the ventilation device, and the exhaust fan is intermittently operated (S1110).

However, if the indoor temperature is higher than the outdoor temperature, since the active ventilation is not necessary, the air supply fan and the exhaust fan in the ventilation device are stopped (S1111).

12 and 13 are control flow charts when only the ventilation device is installed in the building.

First, when the ventilation device is activated (S1201), it is determined whether the current time belongs to the on-peak time section (S1202). In other words, it is determined whether the current electric charge is above a predetermined standard.

As a result of the determination, if the current time belongs to the off-peak time period, the current operation mode is maintained (S1203).

However, if the current time belongs to the on-peak time period, it is determined whether the room temperature is lower than the reference temperature (S1204). As described above, the reference temperature may be a predetermined specific temperature value or an outdoor temperature.

As a result of the determination, when the current room temperature is lower than the reference temperature, it is determined whether two or more ventilation targets are controlled (S1205).

If there is only one ventilation object to be controlled, the air supply fan of the ventilation device is intermittently operated and the exhaust fan is continuously operated (S1206).

However, if there are two or more ventilation devices to be controlled, some of the ventilation devices are in an operating state, and the other ventilation devices are in a stopped state (S1207).

At this time, in the ventilation device in operation, the air supply fan performs the intermittent operation, and the exhaust fan performs the continuous operation (S1208).

In this state, it is determined whether the predetermined time has elapsed (S1209), and when the predetermined time has elapsed, the operating ventilator is stopped and the stopped ventilator is operated (S1210).

This is to allow ventilation to occur alternately in each indoor space, thereby reducing power consumption and allowing ventilation to be performed evenly in each indoor space.

In this state, it is determined whether a stop command is input to each ventilator (S1211). When a stop command is input, the ventilator that is the command target is stopped (S1212). Run the fan intermittently and keep the exhaust fan running.

On the other hand, if it is determined in step S1204 that the room temperature is higher than the reference temperature (S1301), as shown in Figure 13, it is determined whether there are two or more control ventilation apparatuses (S1302).

If there is only one ventilation device to be controlled, the exhaust fan of the ventilation device is intermittently operated, and the air supply fan is continuously operated (S1303).

However, if there are two or more ventilation devices to be controlled, some of the ventilation devices are in an operating state, and the other ventilation devices are in a stopped state (S1304).

At this time, in the ventilation device in operation, the exhaust fan performs the intermittent operation, and the air supply fan performs the continuous operation (S1305).

In this state, it is determined whether the predetermined time has elapsed (S1306), and when the predetermined time has elapsed, the operating ventilator is stopped, and the stopped ventilator is operated (S1307).

This is to allow ventilation to occur alternately in each indoor space, thereby reducing power consumption and allowing ventilation to be performed evenly in each indoor space.

In this state, it is determined whether a stop command is input to each ventilator (S1308). If a stop command is input, the ventilator that is the command target is stopped (S1309). Run the fan intermittently and keep the supply fan running.

In the above control method, when the air supply fan or the exhaust fan is intermittently operated, it is preferable that the time of the stop state is shorter than the time of the operation state.

Figure 14 shows another embodiment of the ventilator according to the present invention, the ventilator shown here is a plurality of ventilation purifier 600 is connected to one electrothermal exchange apparatus 500, the ventilation purifier 600 is It is desirable to be arranged in each indoor space.

The heat exchanger 500 and the ventilation cleaner 600 are connected by an air duct 510 or by a branch duct 520 branched from the air duct 500.

A brief description of the configuration of the total heat exchange device 500 includes an air supply fan (not shown) for supplying external air, an exhaust fan (not shown) for discharging air in an indoor space to the outside, and indoor air and indoors. A total heat exchanger (not shown) for heat-exchanging air.

In addition, the ventilation purifier 600 is a discharge port (not shown) for discharging the outdoor air, an intake port (not shown) for inhaling the indoor air, and re-extracted to the indoor space after inhaling the indoor air or the A blowing fan (not shown) for discharging toward the total heat exchange device 500 is provided.

Here, the blowing fan may be composed of one fan that is responsible for both intake and exhaust, or may be divided into an air supply fan or an exhaust fan.

In addition, the inside of the ventilation cleaner 600 is also provided with a filter member (not shown) that can remove the foreign matter or odor contained in the outdoor air discharged to the indoor space.

Here, the ventilation cleaner 600 may be operated in the ventilation mode and the air cleaning mode.

That is, when operating in the air cleaning mode, the air is not exchanged between the ventilation cleaner 600 and the total heat exchange device 500, and the indoor air is filtered by the air circulation action of the ventilation cleaner 600. do.

That is, it can be operated in the air cleaning mode through the process of the suction of the indoor air by the blowing fan, the filtering of the sucked air, the discharge of the filtered air.

On the other hand, in the ventilation mode, the indoor air sucked from the ventilation cleaner 600 by the air exchange between the ventilation cleaner 600 and the total heat exchange device 500 is moved to the heat exchange device 500, The outdoor air sucked from the total heat exchanger (500) moves to the ventilation cleaner (600).

When the ventilation mode is performed, it is preferable that the above-described air cleaning mode is also simultaneously performed.

That is, when the air exchange between the ventilation cleaner 600 and the total heat exchange device 500 is not performed, only the air cleaning mode is performed, and when the air exchange is performed, the air cleaning mode and the ventilation mode are performed together.

The air duct 510 for the exchange of air is the first air duct 511 for guiding the outdoor air in the direction of the ventilation cleaner 600 in the heat exchange device 500, and in the ventilation cleaner 600 It includes a second air duct 512 for guiding the indoor air in the direction of the total heat exchange device (500).

The branch duct 520 is connected to the first air duct 511 and the first branch duct 521 for guiding outdoor air toward a ventilation purifier of some of the plurality of ventilation cleaners 600 and the ventilation. And a second branch duct 522 for guiding the indoor air sucked by the cleaner 600 in the direction of the second air duct 512.

The power supply source 50 is composed of the system power source 51, the renewable energy 52, the auxiliary power source (53) and the like to supply power, the power supply source 50 is the smart meter ( 20) and the energy management device 30.

The power of the power supply source 50 is supplied to the electrothermal exchange device 500 and the ventilation cleaner 600, the power consumed by the electrothermal exchange device 500 and the ventilation cleaner 600 is the smart meter (20). Or is observed in the energy management device 30.

On the other hand, since the electricity charge varies with time, the operation of the electrothermal heat exchanger 500 or the ventilation cleaner 600 may be controlled by the energy management device 30 according to the level of the electricity charge.

On the other hand, Figure 15 shows that the distributor 700 is disposed between the total heat exchange device 500 and the plurality of ventilation purifier 600.

The distributor 700 is connected to the first air duct 511 and the second air duct 512 connected to the total heat exchange device 500.

The first air duct 511 and the second air duct 512 are also connected between the distributor 700 and each of the ventilation cleaners 600.

The distributor 700 is provided with an opening and closing device (not shown) that can selectively block the inflow and outflow of air to each of the ventilation cleaner 600.

Thus, according to the situation, the air purifier 600 and the electrothermal heat exchanger 500 installed in the indoor space to be ventilated by the intermediary operation of the distributor 700 is in communication with the indoor air is discharged to the outside, Outdoor air may flow into the indoor space.

Except that the distributor 700 is added, the rest of the configuration is the same as that described with reference to FIG. 14, so a detailed description of other parts will be omitted.

Meanwhile, FIG. 16 illustrates an embodiment in which a humidifier 800 disposed between the electrothermal exchange device 500 and the ventilation cleaner 600 is disposed therebetween.

Here, the humidifier 800 is installed in the first air duct 511, and the outdoor air flowing from the electrothermal heat exchanger 500 to the ventilation cleaner 600 maintains an appropriate humidity and flows into the indoor space. To be possible.

In particular, when it is necessary to increase indoor humidity by air drying, such as spring or winter, by operating the humidifier 800, so that the humidity of the air can be maintained in an appropriate state.

Except that the humidifier 800 is added, the rest of the configuration is the same as the description associated with FIG. 14, so a detailed description of other parts will be omitted.

Hereinafter, the operation in the embodiment described with reference to FIGS. 14 to 16 will be described.

First, it is determined whether the current time belongs to the on-peak time period, and if the current off-peak time period is current, the current operation mode is maintained.

However, it is determined that the current time belongs to the on-peak time period. If the indoor temperature is lower than the predetermined reference temperature, outdoor air is introduced into the indoor space to increase the indoor temperature, and indoor air is discharged to the outside.

In this case, the reference temperature may be an outdoor temperature or a predetermined specific temperature.

In this case, if there is only one controlled ventilation purifier 600 or the total heat exchanger 500, in order to actively discharge the indoor air, the exhaust fan of the ventilation purifier 600 performs continuous operation, and the air supply fan is Perform intermittent operation.

However, if the blowing fan of the ventilation cleaner 600 is not divided into an air supply fan and an exhaust fan, and consists of one fan, the blower fan may perform an intermittent operation in the on-peak time period.

On the other hand, the air supply fan and the exhaust fan of the total heat exchange device 500 is continuously operated for the normal flow of air.

The operation of the air supply fan and the exhaust fan in the ventilation cleaner 600 is similar to the operation of the air supply fan and the exhaust fan of the ventilation device in each indoor space shown in FIG. 9.

In addition, the control flow in the ventilation cleaner 600 is similar to that shown in FIG.

 The air supply fan of the ventilation cleaner 600 alternately runs and stops in the on-peak time interval. In addition, it is preferable that the stop time is longer than the operation time for power saving.

However, if there are a plurality of controlled ventilation purifiers and are disposed in a plurality of indoor spaces, the ventilation cleaners disposed in some indoor spaces are in an operating state, and the ventilation cleaners disposed in other indoor spaces are in a stopped state.

However, in the total heat exchange device 500, the air supply fan and the exhaust fan operate normally for the normal flow of indoor and outdoor air.

In the ventilation cleaner which is in a stopped state, the air supply fan and the exhaust fan stop rotation.

In this case, in the ventilation cleaner in operation, the air supply fan performs the intermittent operation, and the exhaust fan performs the continuous operation.

Then, when a predetermined time has elapsed, the ventilation cleaner in operation is stopped, and the ventilation apparatus in operation is in the operating state.

In addition, the air supply fan performs the intermittent operation, and the exhaust fan performs the continuous operation, as described above, in the ventilation purifier that is in the operating state.

That is, while the ventilation operation is first performed for a specific indoor space, when a predetermined time elapses, the ventilation operation is stopped in the specific indoor space and the ventilation operation is performed for another indoor space.

On the other hand, it is determined that the current time belongs to the on-peak time period, when the indoor temperature is higher than the predetermined reference temperature, outdoor air is introduced into the indoor space to reduce the indoor temperature, and the indoor air is discharged to the outside.

However, the current operation mode is maintained for the current off peak time section.

Here, the reference temperature may be a specific temperature set or may be an outdoor temperature.

In this case, if there is only one ventilation purifier to be controlled, in order to actively discharge indoor air, the air supply fan of the ventilation purifier 600 performs continuous operation, and the exhaust fan of the ventilation purifier 600 performs intermittent operation. do.

Even in this situation, if the blowing fan of the ventilation cleaner 600 is composed of one blowing fan instead of the supply fan and the exhaust fan, the blowing fan may perform intermittent operation in the on-peak time period.

However, the air supply fan and the exhaust fan of the total heat exchange device 500 are continuously operated for the normal flow of air.

Here, the operation of the air supply fan and the exhaust fan in the ventilation cleaner 600 is similar to the operation of the air supply fan and the exhaust fan of the ventilation device in each indoor space shown in FIG.

The control flow is similar to that disclosed in FIG.

That is, the exhaust fan of the ventilation cleaner 600 alternately runs and stops in the on-peak time interval. In addition, it is preferable that the stop time is longer than the operation time for power saving.

However, if there are a plurality of controlled ventilation purifiers 600, and the state is arranged in a plurality of indoor spaces, the ventilation purifier 600 disposed in some indoor spaces become an operating state, the ventilation cleaners 600 arranged in other indoor spaces ) Is at rest.

In the ventilation cleaner 600 which is in a stopped state, the air supply fan and the exhaust fan are stopped.

At this time, in the ventilation cleaner 600 in operation as described above, the exhaust fan performs an intermittent operation, and the air supply fan performs a continuous operation.

Then, when the predetermined time has elapsed, the ventilation cleaner 600 in operation is stopped, and the ventilation cleaner 600 in operation is in an operating state.

As described above, the exhaust fan 600 performs the intermittent operation, and the air supply fan performs the continuous operation.

That is, similarly to FIG. 10, while performing a ventilation operation for a specific indoor space at first, when a predetermined time elapses, the ventilation operation for a specific indoor space is stopped and a ventilation operation is performed for another indoor space.

10: air conditioner 100: indoor unit
200: ventilator 210: total heat exchanger
220: air supply fan 230: exhaust fan
240: intake valve 250: exhaust valve
400: outdoor unit 500: electric heat exchanger
600: ventilation cleaner 700: distributor
800: humidifier

Claims (13)

Recognizing power rate information;
Determining whether the current power rate is higher than or equal to a predetermined standard;
Determining whether a cooling operation or a heating operation is performed by a separate air conditioner;
If the current electric charge is more than a predetermined standard, and the cooling or heating operation is performed, the control method of the ventilation device comprising the step of operating the air supply fan or exhaust fan intermittently based on the difference between the indoor temperature and the outdoor temperature. The method of claim 1,
When the cooling operation is performed by the separate air conditioner, and the indoor temperature is higher than the outdoor temperature,
The air supply fan of the ventilation device to perform an intermittent operation to perform the operation and stop alternately, the exhaust fan control method characterized in that the control to continue to operate. The method of claim 2,
The operation time of the air supply fan is a control method of a ventilator, characterized in that shorter than the stop time. The method of claim 1,
When the cooling operation is performed by the separate air conditioner, and the indoor temperature is lower than the outdoor temperature,
And a supply fan and the exhaust fan of the ventilation device are stopped. The method of claim 1,
When the heating operation is performed by the separate air conditioner, and the indoor temperature is lower than the outdoor temperature,
The exhaust fan of the ventilation device to perform an intermittent operation to perform the operation and stop alternately, the air supply fan control method characterized in that the control to continue to operate. The method of claim 5,
The operation time of the exhaust fan is a control method of the ventilator, characterized in that shorter than the stop time. The method of claim 1,
When the cooling operation is performed by the separate air conditioner, and the indoor temperature is lower than the outdoor temperature,
And a supply fan and the exhaust fan of the ventilation device are stopped. Recognizing power rate information;
If the current electric charge is more than a predetermined standard, the method of controlling the ventilation device comprising the step of operating the air supply fan or exhaust fan intermittently while operating the heat transfer unit. The method of claim 8,
Determining whether the indoor temperature is lower than a predetermined reference temperature;
If the room temperature is less than the predetermined reference temperature, the air supply fan of the ventilator performs an intermittent operation to perform the operation and stop alternately, the exhaust fan control method characterized in that the continuous operation. 10. The method of claim 9,
If the room temperature is above a predetermined reference temperature, the exhaust fan of the ventilator performs an intermittent operation to perform the operation and stop alternately, the air supply fan is a control method of the ventilator characterized in that the continuous operation. The method of claim 9 or 10,
Determining whether the ventilator is plural;
If there are a plurality of ventilation devices, some ventilation devices maintain an operating state, and other ventilation devices are stopped. The method of claim 11,
Determining whether a predetermined time has elapsed,
If the predetermined time has elapsed, the ventilation apparatus in operation is stopped and the ventilation apparatus in operation is operated. The method of claim 8,
The control method of the ventilator characterized in that the operating time is shorter than the stop time during the intermittent operation of the exhaust fan or air supply fan.

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