KR102320358B1 - Control method of apparatus for exhaust of indoors - Google Patents

Abstract

According to the present invention, when the air in the kitchen or toilet is contaminated and the exhaust device is operated, the air supply is automatically performed by determining the necessity of air supply, thereby preventing the spread of the pollutant to other indoor spaces while increasing the exhaust efficiency to quickly remove the pollutant to the outside. An object of the present invention is to provide an indoor exhaust device that allows exhaust and a control method of an air supply device interlocked therewith. A method for controlling an indoor exhaust device of the present invention for realizing this includes: a) exhausting indoor air to the outdoors according to exhaust device operation information; b) determining whether it is necessary to supply air into the room; c) when it is determined that the air supply is necessary, generating air supply information from the air supply device to supply air into the room.

Description

Control method of an indoor exhaust device {Control method of apparatus for exhaust of indoors}

The present invention relates to an indoor exhaust device, an air supply device, and a control method therefor, and more particularly, to an indoor exhaust device capable of exhausting indoor polluted air to the outside and a control method thereof, and to supply air during operation of the exhaust device. It relates to a control method of an air supply device that supplies air to a room.

A kitchen hood, which is one of the kitchen appliances, is installed in the kitchen and is used to prevent air pollution in the kitchen by discharging combustion gas, food smell, and water vapor generated when food is cooked in the kitchen.

Such a kitchen hood is installed on an upper portion of a kitchen appliance including a gas range, an electric range, and the like, and exhausts gas generated from the cooking device and gas generated during food cooking to the outside using an exhaust fan.

On the other hand, the toilet is provided with an exhaust fan to more quickly discharge odors and water vapor (moisture) generated when the toilet is used to the outside.

However, even when the kitchen hood is turned on, some of the combustion gases and food odors generated during cooking are not discharged to the outside by the exhaust fan, but are diffused into the living room, etc. Even when the exhaust fan is operated to prevent odors, some of the water vapor (moisture) is not discharged to the outside but diffuses into the room.

In addition, if the exhaust fan is continuously operated to exhaust the polluted air to the outside, a negative pressure is formed in the room and exhaust is not performed smoothly. .

Meanwhile, a method of increasing the capacity of the exhaust fan may be considered in order to more quickly discharge odors and water vapor (moisture) generated in the kitchen and toilet to the outside. However, as the capacity of the exhaust fan increases, the size of the exhaust fan increases, and thus there is a problem in that an installation space and cost are required.

In addition, when the size of the exhaust fan increases, power consumption increases during the operation of the exhaust fan, which increases the electric charge, and vibration and noise increase during operation of the exhaust fan, so that a comfortable living environment cannot be provided.

As a prior art in which a conventional kitchen hood appears, Republic of Korea Registered Utility Model No. 20-265992 has been disclosed.

The present invention has been devised to solve the above-described problems, and when the air in the kitchen or toilet is contaminated and the exhaust device is operated, the air supply is made by determining the necessity of air supply, thereby preventing the spread of the pollutant to other indoor spaces. An object of the present invention is to provide an indoor exhaust device and an air supply device and a control method therefor that increase exhaust efficiency so that pollutants can be discharged to the outside quickly.

In addition, if the exhaust efficiency is improved through proper air supply, the space and cost required for the installation of the exhaust device can be reduced by allowing the exhaust device with a small capacity to exhibit the same performance as in the prior art, and the electricity cost required for the operation of the exhaust device An object of the present invention is to provide an indoor exhaust device, an air supply device, and a control method thereof that can reduce noise and vibration generated during the operation of the exhaust device and provide a comfortable indoor environment.

Another object of the present invention is to provide an indoor exhaust device, an air supply device, and a control method therefor that can quickly and smoothly exhaust polluted air by measuring the indoor pollution level and automatically operating the exhaust device.

In addition, when the polluted air in the room is exhausted using the exhaust device and air is supplied into the room using the air supply device, the polluted air is removed by supplying air through the outlet located at a location spaced apart by an appropriate distance from the exhaust device. An object of the present invention is to provide an indoor exhaust device and air supply device capable of preventing diffusion to other indoor spaces, and a method for controlling the same.

According to an aspect of the present invention, there is provided a method for controlling an indoor exhaust system according to the present invention for achieving the above object, comprising: a) exhausting indoor air to the outdoors according to exhaust operation information; b) determining whether it is necessary to supply air into the room; c) when it is determined that the air supply is necessary, generating air supply information from the air supply device to supply air into the room.

In this case, d) determining whether a change in the air supply amount is necessary after supplying air by the air supply device is performed for a predetermined time due to the generation of the air supply information; e) when it is determined that the change of the air supply amount is necessary, the step of generating the air supply amount adjustment information to adjust the air supply amount may be further included.

The exhaust device operation information in step a) is a signal input from a user; It may be a signal including environmental information of the room where the exhaust is made.

The indoor environment information may include an indoor pollution degree detected by the indoor environment detection unit, and when the detected indoor pollution level is greater than or equal to a set pollution level, the exhaust device operation information may be received from the indoor environment detection unit.

The operating intensity of the exhaust device may be determined in response to the indoor pollution level detected by the indoor environment sensing unit.

When the exhaust device operation information is received from the indoor environment sensing unit, the operating intensity of the exhaust device may be operated as a preset value.

The air supply information may consist of an alarm informing the user that air supply is required, or an air supply signal transmitted to the air supply device.

In step b), the need for the air supply may be determined by detecting the rotation speed (rpm) of the exhaust device.

In step d), it is possible to determine the necessity of the change in the air supply amount by detecting the rotation speed (rpm) of the exhaust device.

When the sensed rotation speed of the exhaust device is higher than a preset rotation speed, it may be determined that there is a need for the air supply or a change in the air supply amount.

In step d), if the sensed rotation speed of the exhaust device is less than or equal to a preset rotation speed, it is determined that it is necessary to maintain the air supply amount or reduce the air supply amount; When the sensed rotation speed of the exhaust device is higher than a preset rotation speed, it may be determined that an increase in the air supply amount is necessary.

The air supply amount adjustment information may be configured as an alarm informing the user that air supply amount adjustment is required, or may be configured as an air supply amount adjustment signal transmitted to the air supply device to adjust the air supply amount.

By measuring the pressure difference between the inside of the exhaust pipe connected to the exhaust device and the room, it is possible to determine the necessity of the air supply in step b), and determine the necessity of the change in the amount of air supply in step d).

In this case, the pressure inside the exhaust pipe and the pressure in the room are respectively measured, and a first pressure difference that is the difference between the pressure inside the exhaust pipe and the pressure in the room at the first time point at which the measurement is made is obtained, and after the first time point Obtain a second pressure difference that is the difference between the pressure inside the exhaust pipe and the pressure in the room at the second time point of It may be determined that a change is necessary.

When generating the air supply information in step c), the air supply information may be generated so that an amount of air supplied through the air supply device is equal to or less than an exhaust amount discharged to the outdoors by the exhaust device.

Before step a), when operating in a control mode other than the mode in which the air supply of step c) is performed in an indoor space other than the indoor space requiring air supply, stop the operation of the other control mode and then c ) step can be controlled to be performed.

It can be controlled so that the supply air to the room is made directly.

After supplying air by the air supply device is made for a certain period of time due to the generation of the air supply information in step c), if the room is a toilet, the exhaust device is operated and the indoor air supply is maintained after the user has finished using the toilet, and then the exhaust It can be controlled to stop the operation of the device and air supply to the room.

When air supply in step c) is achieved, if air supply is already being made to a second indoor space other than the first indoor space requiring air supply, the first indoor space is maintained while supplying air to the second indoor space is maintained. It is possible to carry out air supply to the space.

The control method of the air supply apparatus according to the present invention comprises the steps of: a) receiving air supply information indicating that air needs to be supplied into a room together with operation information of an exhaust apparatus installed in the room; b) performing air supply to the room according to the air supply information; includes.

In this case, c) receiving an air supply amount control signal indicating that a change in the air supply amount of the supplied air is required; d) may further include the step of adjusting the amount of air supplied to the room according to the received air supply amount control signal.

The air supply information may be a signal input from an input unit provided in the air supply device or a signal received from the exhaust device.

In step b), air may be supplied through one or more of the remaining outlets except for the nearest outlet from the exhaust device among the plurality of outlets for supplying air to the room.

Air may be supplied through an outlet farthest from the exhaust device.

The air may be supplied through a discharge port farthest from the exhaust device and at the same time, air may be supplied through a discharge port closest to the exhaust device.

An air supply amount at the furthest outlet may be greater than an air supply amount at the nearest outlet.

Air may be supplied through one or more of the remaining outlets except for the one closest to the exhaust device among a plurality of outlets in the indoor space communicating with the indoor space in which the exhaust device is located.

The air supply amount may be set so that the air supply amount increases as the distance between the exhaust device and the outlet through which the air supply is made increases.

When the exhaust device operation signal for operating the exhaust device is received, it is possible to control the supply of air through the outlet.

Location information on the plurality of outlets and the exhaust device is input to the control unit, and the outlet through which the air is supplied may be selected from the location information.

When the air supply is operated in a control mode other than the mode in which the air supply is made in an indoor space other than the indoor space where the air supply is required before the air supply is made, the operation of the other control mode is stopped and then the air supply is controlled so that the air supply is made. can do.

An exhaust device of the present invention includes: an exhaust device operation information receiving unit for receiving exhaust device operation information for operating the exhaust device; an air supply necessity determining unit for determining whether it is necessary to supply outdoor air to the indoor; When it is determined that outdoor air needs to be supplied indoors, it includes an air supply information generating unit that generates air supply information for supplying air.

The exhaust device operation information is a signal input from a user through an input unit; It may be a signal sensed from an indoor environment sensing unit that detects environmental information of the room where the exhaust is made.

The air supply necessity determination unit determines the need for air supply based on the information received from the rotation speed measurement unit for measuring the rotation speed of the exhaust device, or measures the pressure difference between the interior of the exhaust pipe connected to the exhaust device and the room It is possible to determine the necessity of the air supply based on the information received from the differential pressure measurement unit.

The air supply information generating unit may be configured as an alarm notifying the user that air supply is required, or may be configured as an air supply signal to be transmitted to the air supply device to supply air.

The air supply apparatus of the present invention includes: an air supply information receiving unit for receiving air supply information indicating that air needs to be supplied to a room; an air supply blower for supplying outdoor air into the room; When the air supply information is received by the air supply information receiving unit, it includes a supply driving unit for driving the air supply blower to supply the outdoor air to the room.

The air supply information receiving unit receives air supply amount adjustment information indicating that a change in the air supply amount of the supplied air is required; The air supply driving unit may drive the air supply blower according to the changed amount of air supply.

According to the present invention, in order to exhaust polluted air generated from indoors, such as a kitchen or toilet, to the outdoors, the necessity of supplying air is determined along with the operation of the exhaust device to supply air, thereby preventing the spread of pollutants to other indoor spaces. By increasing the exhaust efficiency, pollutants can be quickly discharged to the outside.

In addition, when air is supplied to the room, the air supply is made at an optimal air supply amount, so that the air supply is not made more than necessary to prevent the spread of pollutants, and the exhaust efficiency is lowered by not supplying too little air. This can be prevented and rapid exhaust can be achieved.

In addition, it is possible to reduce the space and cost required for the installation of the exhaust device by preventing excessive negative pressure from being formed in the indoor space through proper air supply and improving the exhaust efficiency, so that even an exhaust device with a small capacity can exhibit the same performance as in the prior art. In addition, it is possible to reduce the electricity bill required for the operation of the exhaust device, and to reduce noise and vibration generated by the exhaust device.

In addition, it is possible to quickly and smoothly exhaust the polluted air by measuring the degree of pollution in the room and automatically operating the exhaust device.

In addition, when air is supplied to an indoor space where exhaust is made by the exhaust device, if the ventilation mode is already operating in an indoor space other than the indoor space for which air is to be supplied, the ventilation mode operation is terminated and air is supplied to the indoor space requiring air supply. When switching to the air supply mode in which air is supplied, a sufficient amount of air can be secured and exhaust efficiency can be improved.

In addition, when the outside air is directly supplied to the inside of the toilet, odors and water vapor can be smoothly exhausted to the outside even when the user closes the bathroom door.

In addition, when the outdoor temperature is lower than the set temperature, it is heated and supplied air to prevent the user from feeling uncomfortable when using the toilet due to cold outdoor air being supplied to the toilet in winter, and to prevent a safety accident by preventing the moisture in the toilet from freezing. It can be prevented.

In addition, when the polluted air in the room is exhausted using the exhaust device and air is supplied into the room using the air supply device, the polluted air is removed by supplying air through the outlet located at a location spaced apart by an appropriate distance from the exhaust device. It is possible to prevent diffusion to other indoor spaces, thereby providing a comfortable indoor environment.

1 is a view showing a connection structure of an exhaust device and an air supply device of the present invention;
2 is a view showing the control configuration of the exhaust device and the air supply device according to the present invention;
3 is a flowchart showing a control method of an exhaust device and an air supply device according to the present invention;
4 is a flowchart showing a control method of an exhaust device and an air supply device according to another embodiment of the present invention;

Hereinafter, an exhaust device, an air supply device, and a control method thereof of the present invention will be described in detail with reference to the accompanying drawings.

A control configuration of an exhaust device and an air supply device according to the present invention will be described with reference to FIGS. 1 and 2 .

The exhaust devices 110 and 120 of the present invention include the exhaust device operation information receivers 112 and 122 that receive the exhaust device operation information for operating the exhaust devices 110 and 120 installed indoors, and determine whether it is necessary to supply outdoor air to the room. It includes air supply necessity determining units 113 and 123 for generating air supply information for generating air supply information to supply air when it is determined that outdoor air needs to be supplied indoors.

The exhaust device operation information receiving units 112 and 122 , air supply necessity determining units 113 and 123 , and air supply information generating units 114 and 124 constitute the control units 111 and 121 of the exhaust system 110 and 120 .

The exhaust devices 110 and 120 may include a first exhaust device 110 (kitchen hood) provided in a kitchen and operated when cooking food, and a second exhaust device 120 installed in a bathroom and operated when using the toilet.

In this case, the room in which the exhaust devices 110 and 120 are installed may include all places where polluted air such as gas or odor is generated, including kitchens and toilets, and the number of exhaust devices may be additionally installed as necessary. .

The first exhaust device 110 and the second exhaust device 120 may be manually operated by a user's selection, or may be configured to be automatically operated based on indoor environment information. The indoor environment information may be, for example, a degree of pollution of indoor air.

When the exhaust devices 110 and 120 are manually operated, the exhaust device operation information may be a signal input from a user through the input units 117 and 127, and the exhaust device operation information is inputted by the user to provide exhaust device operation information. When received by the receivers 112 and 122, the exhaust devices 110 and 120 are operated.

When the exhaust devices 110 and 120 are automatically operated, the exhaust device operation information may consist of signals sensed from the indoor environment detection units 310 and 320 that detect the environmental information of the room where the exhaust is made, and such exhaust device operation information is received by the exhaust device operation information receiver 112, 122 from the indoor environment sensor 310, 320, the exhaust device 110, 120 is operated.

The indoor environment sensing unit 310 , 320 includes a first indoor environment sensing unit 310 for sensing an indoor environment for operation of the first exhaust device 110 , and a first indoor environment sensing unit 310 for operating the second exhaust device 120 . The second indoor environment sensing unit 320 may be configured to detect the indoor environment.

As an example of a method of automatically operating the exhaust devices 110 and 120, the first indoor environment sensor 310 or the second indoor environment sensor 320 detects odor or humidity, and the exhaust device based on the detection signal (110, 120) can be configured to operate automatically.

The air supply necessity determination unit 113 and 123 determines the need for air supply based on the information received from the rotation speed measurement units 311 and 321 for measuring the rotation speed of the exhaust devices 110 and 120, or the exhaust devices 110 and 120. The necessity of supplying air may be determined based on information received from the differential pressure measuring units 312 and 322 that measure the pressure difference between the inside of the exhaust pipe and the room connected to the .

The rotation speed measuring units 311 and 321 determine whether the indoor air is discharged to the outside due to the operation of the first exhaust device 110 and the second exhaust device 120, and a negative pressure higher than a set value is formed in the indoor space, so that air supply is required. In order to determine whether or not there is, a first rotation speed measuring unit 311 for measuring the rotation speed of the first exhaust device 110 and a second rotation speed measurement unit for measuring the rotation speed of the second exhaust device 120 are measured. It may be made of a part 321 .

The first rotation speed measuring unit 311 and the second rotation speed measuring unit 321 are the rotation speed (rpm) at which the fan of the first exhaust device 110 and the second exhaust device 120 rotates, respectively. measure If the indoor air is exhausted to some extent and the negative pressure of the indoor space is severely formed, the rotational speed of the exhaust devices 110 and 120 is increased. As described above, when the rotation speed of the fan is increased to more than the set value, the negative pressure is severely formed in the indoor space, and since the exhaust does not proceed smoothly, it can be determined that air supply is required.

The differential pressure measurement units 312 and 322 may include a first differential pressure measurement unit 312 and a second differential pressure measurement unit 322 . The first differential pressure measurement unit 312 measures the pressure difference between the interior of the exhaust pipe 118 connected to the first exhaust device 110 and the indoor space when the fan of the first exhaust device 110 rotates. measure In addition, the second differential pressure measuring unit 322 is a pressure difference between the inside of the exhaust pipe 128 connected to the second exhaust device 120 and the indoor space when the fan of the second exhaust device 120 rotates. ) is measured. If it is determined that the negative pressure in the indoor space is severely formed because the differential pressure is greater than the set value, since the exhaust is not smoothly proceeding, it can be determined that the supply air is required.

In addition, it is also possible to determine the negative pressure state from the change in pressure for a certain period of time. That is, the pressure inside the exhaust pipes 118 and 128 and the pressure inside the room are respectively measured for a certain period of time. A first pressure difference, which is a difference between the pressure inside the exhaust pipes 118 and 128 and the pressure inside the room at the first time point, which is the initial stage of the measurement, is obtained. Thereafter, a second pressure difference, which is the difference between the pressure inside the exhaust pipes 118 and 128 and the pressure inside the room at a second time point when a predetermined time has elapsed from the first time point, is obtained. If the difference between the first pressure difference and the second pressure difference is greater than the set value, the negative pressure is gradually formed as time elapses, so that the exhaust does not proceed smoothly, so it can be determined that the supply air is required. If the difference between the first pressure difference and the second pressure difference is smaller than the set value, since the exhaust proceeds smoothly and the negative pressure is not severely formed, it can be determined that the supply air is not required.

The air supply information generating unit 114, 124, when the air supply necessity determining unit 113, 123 determines that air supply is necessary, generates an alarm notifying the user that air supply is necessary, or generates air supply to the air supply device 200. It can be done by transmitting an air supply signal to In this case, the air supply information may consist of either an alarm or an air supply signal.

The alarm generated by the air supply information generators 114 and 124 may consist of an alarm sound indicating that air supply is required, or may include text information indicating that air supply is required on the display units 116 and 126 .

When an alarm is generated by the air supply information generating unit 114 or 124 , the user operates the air supply device 200 to supply air to a room in need of air supply.

When the air supply information generator 114, 124 transmits the air supply signal to the air supply device 200, the first exhaust device 110 and the second exhaust device 120 communicate with the air supply device 200. Communication units 115 and 125 may be provided, respectively. Communication between the communication units 115 and 125 of the exhaust devices 110 and 120 and the communication unit 230 of the air supply device 200 is performed to transmit the air supply information to the air supply device 200 .

The air supply device 200 may be composed of an air supply module provided in the air conditioner, and a control unit 240 that controls the air supply mode for supplying outdoor air to the indoor according to the air supply information; Includes an air supply blower 210 for.

The control unit 240 includes an air supply information receiving unit 241 that receives air supply information indicating that air is required to be supplied to a room, and when the air supply information is received by the air supply information receiving unit 241, the outdoor air is supplied into the room. It includes an air supply drive unit 242 for driving the blower (210).

When the air supply device 200 is configured with an air conditioner such as an air conditioner, a heating and cooling device, or a ventilation device, ventilation, air cleaning, dehumidification, humidification, cooling and heating mode functions may be provided, including the air supply mode. An exhaust blower 220 for exhausting air to the outdoors may be provided.

In addition, the air supply device 200 may be provided integrally with the exhaust devices 110 and 120 . For example, an exhaust fan for exhausting indoor air to the outdoors may be provided on one side of the kitchen hood, and an air supply fan for supplying outdoor air to the interior may be provided on the other side of the kitchen hood.

The outdoor air sucked from the air supply blower 210 of the air supply device 200 flows to the distributor 202 through the duct 201, and in the distributor 202, each indoor space such as a living room, kitchen, room, and toilet. air is distributed and supplied, and the air distributed from the distributor 202 is supplied to each of the indoor spaces through the outlets 203, 204, 205, 206, 207, and 208.

A plurality of dampers (not shown) may be provided inside the distributor 202 to distribute the air flowing through the duct 201 to each indoor space. Therefore, when the damper corresponding to the indoor space to be supplied air is opened, air is supplied through the outlets 203, 204, 205, 206, 207, and 208 connected thereto.

The outlets 203 , 204 , 205 , 206 , 207 and 208 may be provided on the ceiling or on the floor. In particular, in the case of a kitchen, a discharge port may be provided on the floor adjacent to the first exhaust device 110 to discharge air upward. In addition, even when the outlet is provided on the ceiling, it is possible to more effectively prevent the contaminated air from spreading to other indoor spaces by supplying air toward the floor of the bathroom or kitchen. In addition, it is not limited to the ceiling and the floor, and can be installed in other locations as long as it is a location capable of supplying outdoor air into the room.

In addition, although the case where the air supply device 200 and the duct 201 are connected is exemplified in the above, the duct 201 is not connected and the air supply device 200 is provided indoors and the outlet provided integrally with the air supply device 200 . Air supply may be achieved through

In addition, in FIG. 1 , the case where the air supplied from the air supply device 200 is distributed to each indoor space by the distributor 202 has been described, but the air supplied from the air supply device 200 does not pass through the distributor 202 . An air supply duct (not shown) may be provided so that only air supply can be directly supplied to places where only air supply is needed, such as a toilet or a dressing room.

In addition, the supplied air may be configured to be supplied to the space between the toilet and the adjacent indoor space (living room, room), or to be directly supplied to the toilet interior space by connecting the air supply duct to the bathroom ceiling. may be In the case of directly supplying air to the interior space of the toilet as described above, even when the toilet door is closed when the toilet is used, the exhaust from the interior of the toilet can be smoothly performed.

The first indoor environment detection unit 310 may be configured as a first pollution detection unit for detecting whether the kitchen air is contaminated, and the second indoor environment detection unit 320 may include a second indoor environment detection unit 320 for detecting whether the bathroom air is contaminated. It may be composed of a pollution detection unit. The first indoor environment sensing unit 310 and the second indoor environment sensing unit 320 may be configured to detect contaminants such as gas contained in air, and in this case, the detected indoor environment information of contaminants Information may be transmitted to the exhaust devices 110 , 120 . The exhaust devices 110 and 120 may determine the pollution level of the air from the received pollutant information, and whether the exhaust devices 110 and 120 are operated and the operation intensity may be determined according to the pollution degree of the air.

As an example of the second indoor environment sensing unit 320, an odor sensor (not shown) capable of detecting an odor generated during defecation by a user and a humidity inside the toilet to exhaust moisture from the inside of the toilet to the outside after a shower A toilet humidity sensor (not shown) that can detect may be provided.

In this case, the odor sensor and the toilet humidity sensor are parts made separately from the second exhaust device 120 and the air supply device 200, and the user can arbitrarily install it at an appropriate location in the bathroom.

If the smell sensor is separately installed in the bathroom, the second exhaust device 120 can be automatically operated to exhaust the smell whenever the sensed smell exceeds a set value.

A method for controlling an exhaust device of the present invention having such a configuration will be described with reference to FIG. 3 . The first exhaust device 110 and the second exhaust device 120 may be operated by the same method.

In step S10 , the exhaust device operation information for the operation of the exhaust devices 110 and 120 is received by the exhaust device operation information receiving unit 112 .

In this case, the exhaust device operation information may be composed of a signal input from the user. That is, when the user presses the switches of the input units 117 and 127 to operate the exhaust devices 110 and 120 , the exhaust devices 110 and 120 may be operated by the switch signal.

In addition, the exhaust device operation information may be configured as a signal received from the indoor environment detection units 310 and 320 to operate the exhaust devices 110 and 120 when the indoor pollution level detected by the indoor environment detection units 310 and 320 is equal to or greater than the set pollution level.

That is, when the user's defecation detects that the user is defecating by the smell detected by the smell sensor, the control signal is transmitted to automatically determine whether or not the second exhaust device 120 is operated and the operating intensity based on the detected signal. can do.

In addition, since the humidity inside the toilet is high after the user takes a shower, it is necessary to discharge the moisture to the outside. Therefore, when the humidity higher than the humidity set in the toilet humidity sensor is detected, the control unit may transmit a control signal to automatically determine whether or not to operate the second exhaust device 120 and the operating intensity according to the detection signal.

When the exhaust device operation information is received by the exhaust device operation information receiving units 112 and 122 in step S20, the exhaust devices 110 and 120 are operated.

In this case, the operating intensity of the exhaust devices 110 and 120 may be determined in response to the indoor pollution level detected by the indoor environment sensing units 310 and 320 . That is, when the indoor pollution level detected by the indoor environment detectors 310 and 320 is severe (that is, when the value detected by the smell sensor is high or the humidity detected by the toilet humidity sensor is high), the fan is turned on at a high rotation speed. (rpm) and when the indoor pollution level is not severe (that is, when the value detected by the smell sensor is low or the humidity detected by the toilet humidity sensor is low), set the fan to a lower rotation speed (rpm) operate with

In addition, regardless of the indoor pollution degree, when the indoor pollution level detected by the indoor environment sensing units 310 and 320 is higher than a set value, the fan may be configured to rotate at a preset rotation speed.

As described above, by measuring the degree of pollution in the room and automatically operating the exhaust devices 110 and 120, it is possible to quickly and smoothly exhaust the polluted air.

In addition, the rotation speed of the fan may be manually set by the user's selection. It may be set to rotate at a high rotational speed from the beginning, or may be set to rotate at a low rotational speed from the beginning.

In step S30, the air supply necessity determining units 113 and 123 determines whether air supply to the indoor space is required.

When the exhaust devices 110 and 120 are operated, indoor air is discharged to the outdoors, and the indoor space becomes a negative pressure state. If the exhaust is continued, the negative pressure in the indoor space is severely formed, so that the exhaust is not performed smoothly. When it is sensed that the negative pressure is severely formed in this way, it can be determined that air supply to the indoor space is necessary.

The rotation speed (rpm) of the exhaust devices 110 and 120 is detected by the rotation speed measuring units 311 and 321 to determine whether a negative pressure is formed in the indoor space, or the pressure difference between the interior of the exhaust pipe 118 and 128 and the indoor space is measured. It can be detected by the units 312 and 322 and determined from the sensed rotation speed or differential pressure.

If it is determined that air supply is necessary, the process proceeds to step S40. Otherwise, the operating state of the exhaust devices 110 and 120 is maintained until it is determined that air supply to the indoor space is necessary.

On the other hand, if the air supply device 200 (air conditioner) is already operating in the ventilation mode when the exhaust devices 110 and 120 start to operate, stop the operation of the ventilation mode and supply air to the kitchen or bathroom, which is an indoor space requiring air supply. It can be configured by switching to the air supply mode for By performing the control in this way, it is possible to secure a sufficient amount of air supply, thereby improving the exhaust efficiency.

In addition, if the second exhaust device 120 is operated while the first exhaust device 110 is operated to supply air to the kitchen, which is the first indoor space, air is supplied to the bathroom, which is the second indoor space, while maintaining the air supply to the kitchen. It can also be configured to do Conversely, if the first exhaust device 110 is operated while supplying air to the bathroom, it may be configured to supply air to the kitchen while maintaining air supply to the bathroom.

In step S40, it is determined that air supply to the indoor space is necessary, and the air supply information generating unit 113 of the exhaust devices 110 and 120 generates air supply information.

The air supply information generating units 114 and 124 generate an alarm that air supply is required, or transmit an air supply signal to the air supply device 200 through the communication units 115 and 125 .

In step S50, the air supply device 200 is operated.

According to the generation of the air supply information, the air supply apparatus 200 is operated by a signal input by the user through an input unit (not shown) provided in the air supply apparatus 200, or the air supply information generator 114 transmits When the air supply information is received by the air supply information receiving unit 241, the air supply device 200 is operated.

The air supply driver 242 of the air supply device 200 drives the air supply blower 210 to supply outdoor air into the room.

When outdoor air is supplied into the room, it is preferable that a weak negative pressure is formed in the indoor space in which the exhaust devices 110 and 120 are operated to prevent the spread of polluted air.

For example, when cooking is performed in the kitchen, the outdoor air supplied from the air supply device 200 is supplied to the kitchen through the outlet 204 provided in the kitchen together with the operation of the first exhaust device 110 . In this case, when the air supply amount is greater than the exhaust amount, the contaminated air in the kitchen space may be partially diffused into the living room without being exhausted to the outside through the first exhaust device 110 . Therefore, the spread of contaminated air can be prevented by generating air supply information so that the amount of air supplied through the air supply device 200 is equal to or less than the exhaust amount discharged to the outdoors by the first exhaust device 110 .

In the case of supplying air to the room, if air is supplied in an air supply amount that is more than necessary, the contaminated air may be diffused.

Therefore, if air is supplied with the optimum amount of air supplied to form an appropriate negative pressure, the air is not supplied more than necessary, thereby preventing the spread of pollutants, and at the same time, preventing the reduction of exhaust efficiency due to not supplying too little air. Smooth exhaust can be achieved.

In addition, since exhaust efficiency can be improved through proper air supply, the capacity of the exhaust devices 110 and 120 can be reduced, so that the space and cost required for the installation of the exhaust devices 110 and 120, the electricity cost required for operation, and the exhaust device operation occur noise and vibration can be reduced.

If the outlet 207 is located in the living room, which is an indoor space outside the toilet, even if the air is supplied to the living room when the user uses the toilet with the toilet door closed, the supplied air does not flow into the toilet interior space. Accordingly, in this case, air is supplied directly to the toilet interior space through the outlet 207 connected to the toilet ceiling, so that even when the toilet door is closed, exhaust can be smoothly performed when the second exhaust device 120 is operated. Of course, depending on the case that the toilet door is closed or opened, it may be configured to select one of the air supply to the inside of the toilet and the air to the indoor space outside the toilet or to do it at the same time.

In addition, when the air supply duct is provided so that the air supplied from the air supply device 200 can be directly supplied to a place requiring only supply, such as a toilet or a dressing room, without going through the distributor 202, in another space in the room, the ventilation mode or other operation It is also possible to maintain the operating state of the mode and independently supply air to the bathroom or dressing room that requires air supply.

In addition, in winter, when the heating unit (not shown) is operated in the air supply mode to heat the air supplied to the room, a decrease in the indoor temperature due to the indoor supply of cold air can be prevented, thereby maintaining a warm indoor environment. To this end, an outdoor temperature sensor for detecting the outdoor temperature may be further provided, and when the temperature sensed by the outdoor temperature sensor is below a set temperature, the heating unit may be operated in the air supply mode. In particular, when cold outdoor air is supplied to the toilet as it is in winter, there may be a problem of feeling uncomfortable or freezing moisture in the toilet when using the toilet. The heating of the supply air may be configured by using a heating unit provided inside the air supply device 200, or by providing a heater in an air supply duct provided outside the air supply device 200 to heat the supply air.

In step S60, after the air supply is made by the air supply device 200 for a predetermined time, it is determined whether a change in the amount of air supplied to the indoor space is necessary.

In this case, the necessity of changing the air supply may be determined by the exhaust devices 110 and 120 .

The rotation speed (rpm) of the exhaust devices 110 and 120 is sensed by the rotation speed measuring units 311 and 321, or the pressure difference between the inside of the exhaust pipe 111 and 121 and the indoor space is detected by the differential pressure measuring unit 312 and 322, and the It is possible to determine the need to change the amount of air supply from the sensed rotation speed or differential pressure.

When determining the necessity of changing the air supply amount by using the rotation speed measuring unit 311 and 312, if the sensed rotation speed is less than or equal to a preset first rotation speed, it is possible to control to maintain the current air supply amount. In addition, in some cases, when the sensed rotation speed is much lower than the first rotation speed, since the amount of air supply is more than necessary, it can be determined that the reduction of the amount of air supply is necessary. If the sensed rotational speed is higher than the preset second rotational speed, since exhaust is not smoothly performed, it may be determined that an increase in the air supply amount is necessary because a larger amount of air supply than the air supply amount performed in step S50 is required.

The determination of the necessity of the air supply amount change may be performed by the control unit 240 of the air supply apparatus 200 based on information received from the rotation speed measurement units 311 and 321 and the differential pressure measurement units 312 and 322 .

In step S70, the air supply amount adjustment information is generated according to the determined need for change in the air supply amount.

The air supply amount adjustment information may be configured as an alarm informing the user of the need to adjust the air supply amount, or may consist of transmitting an air supply amount adjustment signal to the air supply device 200 to adjust the air supply amount.

The air supply device 200 may adjust the air supply amount by a signal input through the input unit, recognizing that the user needs to adjust the air supply amount from the alarm, and receives the air supply information receiving unit 241 from the exhaust devices 110 and 120 It is also possible to adjust the air supply amount based on the air supply amount control information.

The air supply drive unit 242 controls the driving of the air supply blower 210 so that the air supply amount is changed according to the air supply amount control information.

In step S80, it is determined whether or not the air supply end condition is satisfied. If the air supply end condition is satisfied, the air supply mode is terminated, otherwise, the air supply mode continues.

In this case, the air supply termination condition is when the indoor pollution level detected by the indoor environment sensing units 310 and 320 is less than or equal to the set value, and the pollution source is removed or when the air pollution level is lowered to an appropriate level, the operation of the exhaust devices 110 and 120 is stopped.

If the second exhaust device 120 is configured to operate automatically as described above, exhaust and supply air may be terminated after exhaust and supply air continues for a predetermined time even after the user has finished using the toilet. The predetermined time may be configured as a preset time, and when the smell detected by the smell sensor is below a certain level or the humidity detected by the toilet humidity sensor is below a certain level, exhaust and air supply may be terminated. have. In this case, whether the user has finished using the toilet may be detected through whether the user left the toilet from a toilet access sensor (not shown). The toilet access sensor may be configured as an infrared sensor for detecting the user's body heat.

In the above, the first indoor environment detection unit 310, the second indoor environment detection unit 320, the first rotation speed measurement unit 311, the second rotation speed measurement unit 321, the first differential pressure measurement unit 312 , the second differential pressure measuring unit 322 is configured to be connected to the exhaust devices 110 and 120, but the above configurations are connected to the air supply device 200 and measured indoor environment information, the rotation speed of the exhaust devices 110 and 120, and the exhaust pipe and the room of the pressure information may be configured to be received by the control unit 240 through the communication unit 230 of the air supply device 200 . In this case, it is possible to determine whether the air supply device 200 needs to supply air and the need to change the amount of air supply. For the remaining control methods, the above-described control method may be applied in the same manner.

On the other hand, when it is sensed that there is a need for air supply or a change in air supply amount, a signal or an alarm indicating that the air supply or air supply amount change is required is generated to the user. In this case, the signal or alarm draws the user's attention by displaying it on the display or generating a sound. The signal or alarm may be generated by the exhaust devices 110 and 120 or the air supply device 200 .

When the user sees or hears the signal or alarm for needing air supply or air supply change, he or she may directly operate the air supply device 200 to supply air or change the air supply, or open the window to supply air or change the air supply amount. .

When the air is supplied by the user or the air supply amount is changed, the rotation speed of the exhaust devices 110 and 120 is sensed by the rotation speed measurement units 311 and 312, or the differential pressure between the exhaust pipe and the room is measured by the differential pressure measurement unit 312 and 3220. .

The necessity of air supply change is determined again from the sensed rotation speed or differential pressure, and when it is determined that there is a need for additional air supply change, an air supply amount change required signal or alarm may be generated again to the user.

According to the above configuration, when air is supplied to the room together with the operation of the exhaust devices 110 and 120 in order to exhaust the polluted air generated in the room such as the kitchen or the bathroom to the outside, the pollutant source is prevented from spreading to other indoor spaces. By increasing the exhaust efficiency, pollutants can be quickly discharged to the outside.

A method of controlling an exhaust device and an air supply device according to another embodiment of the present invention will be described with reference to FIG. 4 . In the description of the control method of FIG. 4 , only parts with differences among the control methods described with reference to FIG. 3 will be described, and descriptions of the remaining common parts will be omitted.

When the user cooks or uses the toilet in step S110, the exhaust devices 110 and 120 are operated.

In step S120, it is determined that air supply to the indoor space is necessary, and the air supply information generating unit 113 of the exhaust devices 110 and 120 generates air supply information.

In step S130, air is selected through which one of the plurality of outlets 203, 204, 205, 206, 207, and 208 to supply air, and a corresponding damper is opened to supply air through the selected outlet.

When the first exhaust device 110 is operated, supply air is supplied through one or more of the remaining outlets 203,204,206,207,208 except for the nearest outlet 205 from the first exhaust device 110 among the plurality of outlets 203,204,205,206,207,208. can make it happen.

If air is supplied through the outlet 205 closest to the first exhaust device 110, some of the polluted air is not discharged to the outside through the exhaust pipe 118, but spreads to the living room, which is an indoor space close to the kitchen. . Therefore, instead of supplying air through the outlet 205 closest to the first exhaust device 110, air is supplied through the outlet located farther than the outlet 205, so that the contaminated air is diffused into the living room, which is an adjacent indoor space. can be prevented

In this case, through one or more of the plurality of outlets 203 and 204 provided in the living room, which is a space communicating with the kitchen, which is the indoor space where the first exhaust device 110 is located, among the remaining outlets 203,204, 206,207,208 except for the nearest outlet 205, supply can be made.

Position information of the exhaust devices 110 and 120 and position information of the outlets 203 , 204 , 205 , 206 , 207 and 208 are input to the control unit 240 . The relative distances between the exhaust devices 110 and 120 and the respective outlets 203 , 204 , 205 , 206 , 207 and 208 can be calculated from this location information. In addition, information on the relative distances between the exhaust devices 110 and 120 and the respective outlets 203 , 204 , 205 , 206 , 207 and 208 may be preset in order of distance. In addition, when a plurality of outlets are provided in a space communicating with each other, information on a positional relationship between the respective indoor spaces and the outlets may be input in advance.

Based on this location information, air may be supplied through the outlet 204 that is the furthest from the first exhaust device 110 among the outlets 203 and 204 provided in the living room communicating with the kitchen. As such, when air is supplied through the outlet 204 that is the farthest from the first exhaust device 110, the airflow of the air discharged from the outlet 204 surrounds the space where the kitchen and the living room are connected, so that the kitchen space It can prevent the polluted air in the living room from spreading into the living room.

In addition, when the first exhaust device 110 is operated, indoor air is discharged to the outdoors and the indoor space is in a negative pressure state. In this state, when the first exhaust device 110 continues to operate, noise and vibration are generated. Therefore, when the first exhaust device 110 is operated, when the air is supplied through the outlet 204, it is possible to improve the exhaust efficiency because it prevents the negative pressure from being severely formed in the kitchen space and the exhaust is performed smoothly, and noise and vibration occurrence can be prevented.

In addition, air is supplied through the outlet 204 furthest from the first exhaust device 110 and at the same time, air is supplied through the outlet 205 closest to the first exhaust device 110 at the same time. may be In this way, when air is supplied from the two outlets 204 and 205, it is possible to improve the exhaust efficiency by preventing the negative pressure from being severely formed in the kitchen space due to the air supply from the outlet 205 near the first exhaust device 110. can In addition, by supplying air through the outlet 204 located far from the first exhaust device 110 , it is possible to prevent the spread of contaminated air from the kitchen space to the living room.

On the other hand, by configuring so that air is supplied directly to the toilet interior space through the outlet 208 connected to the ceiling of the toilet, even when the toilet door is closed, exhaust can be smoothly performed when the second exhaust device 120 is operated. In this case, depending on the case where the toilet door is closed or opened, it may be configured to select one of the air supply to the inside of the toilet and the air to the indoor space outside the toilet or to do it at the same time.

In step S140, the amount of air supplied through the outlet is determined.

It is preferable that the air supply amount increases as the distance between the first exhaust device 110 and the outlets 203 and 204 where the air is supplied increases, in order to prevent the spread of contaminated air. Accordingly, the amount of air supplied from the outlet 204 located farthest from the first exhaust device 110 is the largest, the air supply amount from the outlet 203 located in the middle is the next largest, and the outlet 205 located closest to the first exhaust device 110 . It can be configured to have the smallest amount of air supply in

If air is supplied simultaneously through the outlet 204 furthest from the first exhaust device 110 and the outlet 205 nearest It is preferable to be larger than the amount of air supplied from the outlet 205 at the location. If the amount of air supplied from the nearest outlet 205 is large, the possibility that contaminated air from the kitchen will diffuse into the living room increases. do. In addition, it is preferable that the amount of air supplied through the farthest outlet 204 is greater than the amount of air supplied through the outlet 205 in order to prevent the spread of contaminated air. In this case, the amount of air supplied from the two outlets 204 and 205 can be adjusted by adjusting the opening degree of a damper for supplying air to each outlet.

In step S150, the air supply blower 210 is operated according to the air supply amount determined above. When the operation of the air supply blower 210 is made for a predetermined time, it proceeds to step S160.

In step S160, it is determined whether the air supply termination condition is satisfied. Here, the air supply termination condition may be configured when a signal indicating that the operation of the exhaust devices 110 and 120 is stopped is received. As a result of the determination, if the air supply termination condition for terminating air supply is satisfied, the air supply mode is terminated, otherwise, the air supply state is maintained.

According to the configuration as described above, when the air in the kitchen or toilet is polluted and exhaust by the exhaust devices 110 and 120 and air supply by the air supply device 200 are supplied, the outlet at a location spaced apart by an appropriate distance from the exhaust devices 110 and 120 is installed. By supplying air through the air, it is possible to prevent the spread of polluted air to other spaces in the room, and at the same time to improve exhaust efficiency, thereby providing a comfortable indoor environment.

As described above, the present invention is not limited to the above-described embodiments, and obvious modifications can be made by those of ordinary skill in the art to which the invention pertains without departing from the technical spirit of the invention as claimed in the claims. It is possible, and such modifications fall within the scope of the present invention.

110: first exhaust device 120: second exhaust device
111, 121: control unit 112, 122: exhaust system operation information receiving unit
113, 123: air supply necessity determination unit 114, 124: air supply information generation unit
115: communication unit 116: display unit
117: input unit 200: air supply device
201: duct 202: distributor
203,204,205,206,207,208: outlet 210: supply air blower
220: exhaust blower 230: communication unit
240: control unit 241: air supply information receiving unit
242: air supply driving unit 310: first indoor environment sensing unit
311: first rotation speed measurement unit 312: first differential pressure measurement unit
320: second indoor environment sensing unit 321: second rotation speed measuring unit
322: second differential pressure measurement unit

Claims (30)

a) exhausting the indoor air to the outdoors according to the operation information of the exhaust device;
b) determining whether it is necessary to supply air into the room;
c) generating air supply information so that air is supplied from the air supply device to the room when it is determined that the air supply is necessary;
d) determining whether a change in the amount of air supply is necessary after air supply by the air supply device is performed for a certain period of time due to the generation of the air supply information;
e) generating air supply amount adjustment information so that the air supply amount is adjusted when it is determined that the air supply amount change is necessary;
Control method of indoor exhaust system comprising delete According to claim 1,
The exhaust device operation information of step a) is,
a signal input from the user;
Control method of an indoor exhaust device, characterized in that the signal is a signal related to the environmental information of the room in which the exhaust is made 4. The method of claim 3,
The indoor environment information includes an indoor pollution degree detected by an indoor environment detection unit, and when the detected indoor pollution level is greater than or equal to a set pollution level, the exhaust device operation information is received from the indoor environment detection unit. control method 5. The method of claim 4,
Control method of an indoor exhaust device, characterized in that the operating intensity of the exhaust device is determined in response to the indoor pollution level detected by the indoor environment sensing unit 5. The method of claim 4,
When the operation information of the exhaust device is received from the indoor environment sensing unit, the control method of the indoor exhaust device, characterized in that the operation intensity of the exhaust device is operated as a preset value. According to claim 1,
The air supply information includes an alarm notifying a user that air supply is required or an air supply signal transmitted to the air supply device. According to claim 1,
In step b), the control method of the indoor exhaust system, characterized in that by detecting the rotation speed (rpm) of the exhaust device to determine the need for the air supply According to claim 1,
In step d), the control method of the indoor exhaust system, characterized in that by detecting the rotation speed (rpm) of the exhaust device to determine the need for the change in the air supply amount 10. The method according to claim 8 or 9,
Control method of an indoor exhaust device, characterized in that when the sensed rotation speed of the exhaust device is higher than a preset rotation speed, it is determined that there is a need for the air supply or a change in the air supply amount. 10. The method of claim 9,
In step d),
if the detected rotation speed of the exhaust device is less than or equal to a preset rotation speed, it is determined that the air supply amount is maintained or that the air supply amount needs to be reduced;
Control method of an indoor exhaust device, characterized in that when the sensed rotation speed of the exhaust device is higher than a preset rotation speed, it is determined that an increase in the air supply amount is necessary. According to claim 1,
The control method of an indoor exhaust device, characterized in that the air supply amount adjustment information is configured as an alarm notifying a user that air supply amount adjustment is required, or an air supply amount control signal transmitted to the air supply device so that the air supply amount is adjusted. According to claim 1,
An indoor exhaust device, characterized in that by measuring the pressure difference between the inside of the exhaust pipe connected to the exhaust device and the room, the necessity of the air supply is determined in the step b), and the necessity of the change in the air supply amount is determined in the step d) control method 14. The method of claim 13,
The pressure inside the exhaust pipe and the pressure in the room are respectively measured, and a first pressure difference that is the difference between the pressure inside the exhaust pipe and the pressure in the room at the first time point at which the measurement is made is obtained, and the first pressure difference after the first time point is obtained. A second pressure difference, which is the difference between the pressure inside the exhaust pipe and the pressure inside the room at two points, is obtained, and when the difference between the first pressure difference and the second pressure difference is greater than the set value, the necessity of air supply or the change in air supply amount is determined. Control method of an indoor exhaust system, characterized in that it is determined that there is a need According to claim 1,
When the air supply information is generated in step c), the air supply information is generated so that the amount of air supplied through the air supply device is equal to or less than the exhaust amount discharged to the outdoors by the exhaust device. Control method According to claim 1,
Control method of an indoor exhaust device, characterized in that the control is made so that the air is supplied directly to the room According to claim 1,
After supply air by the air supply device is made for a certain period of time due to the generation of the air supply information in step c), if the room is a toilet, the exhaust device is operated and the indoor air supply is maintained after the user has finished using the toilet, and then the exhaust Control method of an indoor exhaust system, characterized in that the control is performed to stop the operation of the apparatus and the indoor air supply delete delete delete delete delete delete delete delete delete delete delete delete delete

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