KR20220167535A - Each room ventilation system - Google Patents

Abstract

The present invention relates to an individual ventilation system for each room, which comprises: a ventilation device; a plurality of electric diffusers connected to the ventilation device to be installed in a ceiling of each room; a sensor unit detecting each air state inside each room; and a control unit determining a contamination degree according to air state information inside each room provided from the sensor unit to individually control each operation of the plurality of electric diffusers. According to the present invention, the present invention detects the air state of each room to individually control the operation for each room, thereby enabling optimal indoor ventilation.

Description

Individual ventilation system for each room {Each room ventilation system}

The present invention relates to an individual ventilation system for each room in which optimal indoor ventilation can be achieved by individually controlling the operation of an electric diffuser for each room by sensing air conditions in each room.

In general, in buildings such as houses, apartments, or offices, ventilation systems that ventilate air in a closed room by discharging polluted indoor air to the outside and introducing fresh outdoor air into the room to keep the indoor air in a pleasant state. has this installed.

In this ventilation system, after the air ventilated by the ventilation device is transferred to each room in the room along the supply duct and the exhaust duct, supply and exhaust are performed through a diffuser installed on the ceiling of each room.

However, the air condition of each room to be ventilated is inevitably different depending on the usage environment of the room, and the conventional ventilation system is configured so that ventilation is uniformly performed regardless of the condition of each room, so the ventilation efficiency is poor. There is a problem that unnecessary energy is wasted.

Registered Patent No. 10-0698851 : Ventilation system for apartment houses

The present invention has been proposed to solve the above conventional problems, and an object of the present invention is to individually control the operation of an electric diffuser installed in each room according to the air condition of each room so that optimum indoor ventilation can be achieved. It is to provide individual ventilation system.

In addition, an object of the present invention is to provide precise and detailed contamination information on the filter member to be easily and quickly recognized, so that the maintenance of the filter member can be performed more efficiently, and the electric diffuser can be operated manually when necessary. It is to provide an individual ventilation system for each room that improves the convenience of use by doing so.

As a problem solving means of the present invention for achieving the above object,

A ventilation device, a plurality of electric diffusers installed on the ceiling of each room in communication with the ventilation device, a sensor unit that detects the air condition inside each room, and air condition information inside each room provided from the sensor unit An individual ventilation system for each room including a controller for individually controlling the operation of each of the plurality of electric diffusers by determining the degree of contamination according to the present invention is disclosed.

Here, each of the plurality of electric diffusers includes an identification information unit that stores identification information of a room in which it is installed and provides it to a control unit, and the identification information may be set by a portable user terminal by a user.

In addition, the sensor unit may be provided in each of a plurality of electric diffusers, and the user terminal may include a display unit for displaying air condition information in each room sensed by the sensor unit.

The ventilation apparatus may further include a filter contamination determining unit configured to determine a degree of contamination of a filter member provided in the ventilation device, and the display unit may further display filter contamination information and filter replacement information determined by the filter contamination determining unit.

Further, a plurality of room stands disposed inside each room are further included, and the sensor unit is provided in each of the plurality of room stands, and the room stand displays air condition information inside each room detected by the sensor unit. It may include a display unit to.

In addition, the electric diffuser supports a body member installed on the ceiling, an air volume control cone equipped with a motor, and an air volume control cone provided on the body member to adjust the air volume by moving up and down with respect to the body member. It may include a guide-elevating rod body that guides the air volume control cone so that it is relatively elevated when the motor is driven and is integrally rotated when the air volume control cone is manually rotated to move up and down together with the air volume control cone.

According to the individual ventilation system for each room according to the present invention,

By determining the degree of pollution in each room according to the air condition detected in each room and efficiently controlling the operation of the electric diffuser installed in each room, optimal ventilation can be achieved for each room while unnecessary waste of energy can be minimized. .

In addition, since the user can easily and quickly check detailed contamination information on the filter member and information on the replacement time, maintenance of the filter member can be performed more conveniently while preventing a decrease in ventilation efficiency due to contamination of the filter member. There are advantages to

In addition, along with air volume control by the control unit, air volume can also be adjusted manually when necessary, so that convenience of use is improved and installation and maintenance of the electric diffuser are easy and convenient.

In addition, it is added that, in addition to the specifically specified effects as described above, unique effects that can be easily derived and expected from the characteristic configuration of the present invention may also be included in the effects of the present invention.

1 is a view illustrating a first embodiment of an individual ventilation system for each room according to the present invention;
2 is a diagram illustrating an embodiment of a user terminal according to the present invention;
3 is a diagram illustrating an embodiment of a filter contamination determination unit according to the present invention;
4 is a view illustrating a second embodiment of an individual ventilation system for each room according to the present invention;
5 is a view illustrating an embodiment of a room stand according to the present invention;
6 and 7 are diagrams illustrating an embodiment of an electric diffuser according to the present invention,
8 and 9 are diagrams illustrating another embodiment of the electric diffuser according to the present invention.

Hereinafter, a preferred embodiment of the individual ventilation system for each room according to the present invention will be described in detail with reference to the accompanying drawings.

This embodiment is provided to more clearly explain the present invention to those with average knowledge in the art, and the shape, size, number, spacing between elements, etc. of elements in the accompanying drawings provide a clearer explanation. It may be reduced or exaggerated for emphasis, and is not limited to those illustrated in the drawings unless otherwise specifically limited.

In addition, in describing the embodiments, if a certain component is described as “provided”, “formed”, “installed”, “coupled”, “fixed”, or “connected” to another component, , It may be provided, formed, installed, coupled, fixed, or connected directly to the other components, but it should be understood that other components may exist in the middle.

In addition, terms indicating directions such as front, back, left, right, up, down, etc. are only used to describe the directions shown and observed in the drawings, and if the directions shown and observed change, these terms may also change. It should be understood that there is

In addition, when it is determined that the technical features of the present invention may be unnecessarily obscured as matters already obvious to those skilled in the art, such as known functions or known configurations related to the description of the embodiments, the detailed I will omit the explanation.

1 to 3 illustrate a first embodiment of an individual ventilation system for each room according to the present invention.

As illustrated in FIG. 1, the individual ventilation system for each room according to the first embodiment of the present invention includes a ventilation device 100, an electric diffuser 200, a sensor unit 300, and a user terminal 400. And, it may be made including a control unit 500, and filter contamination determination unit 600.

The ventilation device 100 is a device that performs a ventilation function of exhausting polluted indoor air to the outside and supplying fresh air from the outside into the indoor space.

The ventilator 100 may basically include a blowing fan that provides force for supplying and exhausting air, and a filter member that filters and purifies various contaminants included in the air being transported.

The ventilator 100 does not need to be limited to a device having a special configuration, and as an example, heat exchange between the supply air and the exhaust air is achieved by providing a total heat exchange element at a point where the supply air flow path and the exhaust air flow path cross each other. It may be a total heat exchanger that performs ventilation while doing so.

The electric diffuser 200 may be installed on the ceiling of each room in communication with the ventilation device 100 through a duct while being made up of a plurality.

The electric diffuser 200 may discharge the purified air supplied from the ventilator 100 into the room and suck in the contaminated air in the room to be exhausted.

Therefore, although it is represented by a singular number in FIG. 1 for convenience, a pair of electric diffusers 200 may be installed in each room, and a pair of electric diffusers 200 are connected to the ventilation device 100 through an air supply duct to supply air It can be divided into an air supply diffuser that discharges into the room and an exhaust diffuser that is connected to the ventilator 100 through an exhaust duct and sucks the exhausted air from the inside of the room.

In the electric diffuser 200, the amount of air supplied or exhausted can be adjusted by raising and lowering the air volume control cone 220 according to the driving of the motor to increase or decrease the opening rate, and a detailed configuration will be described later.

The sensor unit 300 senses the air condition inside each room and generates sensing information about the air condition.

That is, the sensor unit 300 senses the air condition inside each room to generate sensing information, and provides the sensing information to the control unit 500.

The sensor unit 300 may include a plurality of sensors to detect the air condition inside each room from various items. For example, a fine dust sensor for detecting fine dust, a CO2 sensor for detecting CO2, and a polluted air It may include at least one or more of a TVOC sensor for detecting and a temperature and humidity sensor for detecting temperature and humidity.

As illustrated in FIG. 1 , the sensor unit 300 may be provided to be embedded in each of a plurality of electric diffusers 200 installed in each room.

The user terminal 400 is a terminal that can be carried by a user, and may be, for example, a wireless remote control.

As illustrated in FIG. 2 , the user terminal 400 may include a wireless communication unit 410, an operation control unit 420, a diffuser setting unit 430, and a display unit 440.

The wireless communication unit 410 may perform a wireless communication function to transmit and receive various information and signals to and from the plurality of electric diffusers 200, the control unit 500, and the filter contamination determination unit 600.

That is, input signals such as drive/stop of the ventilation device 100, operation mode, air volume intensity, etc. input through the operation control unit 420, setting signals input through the diffuser setting unit 430, and sensor unit 300. Various detected detection information, filter contamination information and filter replacement information provided from the filter contamination determination unit 600 may be transmitted and received through the wireless communication unit 410 .

The operation control unit 420 controls the driving operation of the ventilation device 100 from the user, such as on/off of the driving of the ventilation device 100, operation modes such as ventilation mode/air cleaning mode, and air volume level. This is the part that receives various signals.

That is, the user can conveniently control the driving of the ventilator 100 remotely through the operation control unit 420 of the user terminal 400 .

The diffuser setting unit 430 is a part that sets identification information for each of the plurality of electric diffusers 200 installed in each room.

That is, the user may set identification information of each of the plurality of electric diffusers 200 installed in each room through input of the diffuser setting unit 430 .

For example, the electric diffuser 200 installed in each room, such as room1 for the main room and room2 for the small room, may receive unique identification information through the diffuser setting unit 430 .

Identification information set through the diffuser setting unit 430 may be stored in an identification information unit (not shown) provided in the electric diffuser 200 and provided to the control unit 500, and the control unit 500 may be provided to the electric diffuser 200 ) According to the identification information of the plurality of electric diffusers 200, it is possible to transmit and receive information with each of the electric diffusers 200 or individually control the operation of the electric diffuser 200.

The display unit 440 is a part that visually displays various types of information so that users can easily recognize them.

That is, the display unit 440 is provided with a liquid crystal panel to provide information on the operating state of the ventilation device 100, various detection information on the air condition detected by the sensor unit 300, and a filter contamination determination unit 600 to be described later. Filter contamination information and filter replacement information provided in can be displayed.

The controller 500 is a part that controls the operation of the ventilator 100 and the operation of the electric diffuser 200 as a whole.

In particular, the control unit 500 selectively operates each of the plurality of electric diffusers 200 installed in each room according to the identification information of the electric diffuser 200 and the sensing information about the air condition in each room provided to the sensor unit 300. You can control it.

That is, the control unit 500 determines the degree of indoor air pollution for each room according to the identification information of the electric diffuser 200 and the detection information of the air condition detected by the sensor unit 300, and accordingly, for efficient ventilation of each room. It is to selectively control the operation of the electric diffuser 200 in each room so that an appropriate amount of ventilation air can be provided to each room.

For example, when it is determined that the concentration of fine dust, CO2, and contaminated air provided from the electric diffuser 200 and the sensor unit 300 installed in the bedroom is high, the control unit 400 increases the ventilation efficiency of the bedroom by increasing the amount of supplied and exhausted air. In order to improve this, the operation of the motor is selectively controlled so that the air volume control cone 220 of the electric diffuser 200 installed in the bedroom descends, and conversely, when the concentration is relatively low and it is determined that the need for ventilation is small, supply and exhaust to the bedroom The operation of the motor is selectively controlled so that the air volume control cone 220 of the electric diffuser 200 rises so that the air volume is reduced or blocked.

The filter contamination determination unit 600 may determine the contamination level of the filter member provided in the ventilation device 100 and provide contamination information of the filter member and replacement information of the filter member to the user terminal 400 .

As illustrated in FIG. 3, the filter contamination determination unit 600 includes a measurement sensing unit 610, an initial value storage unit 620, a reduction rate calculation unit 630, a contamination rate calculation unit 640, , It may include a replacement determination unit 650 and a contamination information output unit 660.

The measuring and sensing unit 610 may be a flow rate sensor or a pressure sensor that measures the flow rate or pressure at the rear end of the filter member after the air has passed through the filter member.

The initial value storage unit 620 may set and store the flow rate or pressure measured by the measurement sensing unit 610 as the initial flow rate or initial pressure when the ventilator 100 is initially driven.

Here, the initial flow rate or initial pressure is the flow rate or pressure when the filter member is in a clean, uncontaminated state, and therefore, the initial operation of the ventilation device 100 means not only when the ventilation device 100 is installed and first driven. However, if the filter member is replaced during use, it includes the case where the ventilation system is operated for the first time after the replacement.

The reduction rate calculator 630 converts the flow rate or pressure measured from the measurement sensing unit 610 each time to the stored initial flow rate or initial pressure when the ventilator is repeatedly driven after the initial drive of the ventilator 100. The reduction rate can be calculated by comparing

As the operating time of the ventilator 100 increases, the degree of contamination of the filter member increases and the measured flow rate or pressure decreases, and the reduction rate calculated accordingly increases gradually, for example, 10%, 20%, 30%, etc. this will be done

The contamination rate calculation unit 640 may calculate the degree of contamination of the filter member as a percentage value of contamination, such as 10%, 20%, 30%, etc., according to the calculated reduction rate. has an increasing proportional relationship.

In the pollution rate calculation unit 640, proportional data such as a proportional formula, a proportional table, a proportional graph, etc. obtained through an experiment to measure a change in flow rate or pressure while increasing the contamination degree of the filter member in advance in the manufacturing stage of the ventilation device are stored. It may be stored, and the contamination rate calculation unit 640 may calculate the contamination rate of the filter member from the reduction rate according to the stored proportional data.

For example, if the proportional formula of contamination rate = reduction rate × 2 is stored as proportional data, in the contamination rate calculation unit 640, if the reduction rate is 5%, the contamination rate is 10%, if the reduction rate is 25%, the contamination rate is 50%, and the reduction rate is 50%. If the contamination rate is 50%, the contamination rate is calculated as 100%.

The replacement determination unit 650 may generate a filter replacement signal by determining whether the contamination rate calculated by the contamination rate calculation unit 640 reaches the set replacement contamination rate.

The replacement determination unit 650 stores the replacement contamination rate (eg, 100%) of the filter member through a preliminary experiment, and generates a filter replacement signal when the calculated contamination rate reaches the stored replacement contamination rate.

The contamination information output unit 660 may output the contamination rate information calculated by the contamination rate calculation unit 640 and the filter replacement signal generated by the replacement determination unit 650 and provide the output to the user terminal 300 .

The contamination rate information of the filter member and the filter replacement signal provided by the contamination information output unit 660 are received by the user terminal 400 through the wireless communication unit 410, and the received contamination rate information and filter replacement information are displayed on the display unit ( 440), the user can clearly and quickly recognize filter contamination information and replacement information.

4 illustrates a configuration of an individual ventilation system for each room according to a second embodiment of the present invention.

As illustrated in the drawings, the individual ventilation system for each room according to the second embodiment of the present invention has the same configuration as the first embodiment described above, but has a difference in that it further includes a room stand 700.

Therefore, in the following description of the second embodiment, the same reference numerals are used for the same components as those of the first embodiment described above, and descriptions of overlapping configurations will be omitted.

The room stand 700 is made up of a plurality and can be arranged inside each room.

The room stand 700 may have a cylindrical shape seated on the floor of each room and erected at a certain height, and may include a wireless communication unit 710 and a display unit 720 as illustrated in FIG. 5 .

In the case of a structure including the room stand 700, the sensor unit 300 may be provided in each of the plurality of room stands 700 instead of the electric diffuser 200.

The wireless communication unit 710 may perform a wireless communication function to transmit and receive various information and signals with the electric diffuser 200, the control unit 500, and the filter contamination determination unit 600.

The display unit 720 is a part that visually displays various types of information so that users can easily recognize them.

That is, the display unit 720 is provided with a liquid crystal panel to provide information on the operating state of the ventilation device 100, various sensing information on the air condition detected by the sensor unit 300, and information provided by the filter contamination determination unit 600. Filter contamination information and filter replacement information may be displayed.

Meanwhile, embodiments of the electric diffuser 200 constituting the ventilation system of the present invention are illustrated in FIGS. 6 to 9, and the specific configuration of the electric diffuser 200 will be described with reference to these.

As illustrated in the drawings, the electric diffuser 200 includes a body member 210, an air volume control cone 220, a motor 230, a guide-elevating rod body 240, and a power converter. (250).

The main body member 210 communicates with the ventilation device 100 through a duct roll and is installed on the ceiling of each room, and may include a body part 211 and a cover part 212.

The body part 211 may be inserted into the ceiling through a hole drilled in the ceiling, and may have a cylindrical shape with a hollow interior and an open top and bottom so that air can pass therethrough.

A rod holder 213 for supporting a guide-elevating bar 240 to be described later may be formed at the inner center of the body portion 211, and a guide-elevating bar 240 may be formed on an inner circumferential surface of the bar holder 213. ) A female screw for screwing with the rod top end 242 may be formed.

In addition, a plurality of support wings 214 for fixing the body member 210 to the ceiling may be provided along the side of the body part 211 .

The cover part 212 is formed below the body part 211 and has a larger diameter than the hole in the ceiling, so that it can adhere to the lower surface of the ceiling.

The lower surface of the cover part 212 may be inclined at a predetermined angle corresponding to the inclined upper plate part 221 of the air volume control cone 220 .

The air volume control cone 220 is moved up and down relative to the body member 210, so that the volume of air supplied or exhausted through the body member 210 can be controlled.

That is, the air volume control cone 220 can be raised to come into close contact with the opened lower part of the body member 210 to block the air volume, and in this blocking state, it is lowered so as to be spaced downward from the opened lower part of the body member 210, Depending on the degree of descent, the air volume can be gradually increased by increasing the amount of opening.

The air volume control cone 220 may include an upper plate portion 221 that extends downward at an angle from the center to an outer portion, and a lower plate portion 222 fixed to a lower end of the upper plate portion 221 .

Therefore, the air volume control cone 220 has a space 223 of a predetermined size therein, and the above-described sensor unit 300 may be provided in the space 223.

The motor 230 is an electric means for providing electric lifting force to the air volume control cone 220, and is fixedly installed inside the air volume control cone 220, that is, in the space 223 of the air volume control cone 220. It can be.

The guide-elevating bar body 240 is provided at the inner center of the main body member 210 and supports the air volume control cone 220 so that it can be moved up and down either electrically or manually.

That is, the guide-elevating rod body 240 basically supports the air volume control cone 220, but when the motor 230 is driven by the controller 500, the air volume control cone 220 In contrast, when the air volume control cone 220 itself is rotated manually, the air volume control cone 220 is rotated integrally with the air volume control cone 220 so that the air volume control cone 220 is moved up and down together.

The guide-elevating rod body 240 having both a guide function and an elevating function has a bar shape extending vertically to a certain length, and includes a bar middle end 241, a bar top end 242, and a bar bottom end 243. may consist of

The middle end portion 241 of the rod passes through the center of the upper end of the air volume control cone 220, and is a portion to which rotational force is applied when the air volume control cone 220 is rotated.

To this end, the middle end of the bar 241 is made of an angular cross section, and the upper plate 221 of the air volume control cone 220 has a square shape having the same angle penetrated by the middle end of the bar 241 at the center position of the upper end. A passage 224 may be formed.

That is, the middle end of the bar 241 and the prismatic passage 224 are formed in the same angular shape as each other, and for example, may be in a rectangular shape.

Since the bar middle end 241 passes through the prismatic passage 224, the air volume control cone 220 can only move up and down relatively along the bar middle end 241, and has a relative height with respect to the bar middle end 241. Rotation is suppressed and only integrated rotation is possible.

The bar top end 242 is a portion that extends a certain length upward from the bar middle end 241 and is screwed to the bar holder 213 of the body member 210.

To this end, the rod top end 242 may have a circular cross section and a male screw for screwing with the rod holder 213 may be formed on an outer circumferential surface thereof.

When the rotational force is generated in the air volume control cone 220 itself and the rotational force is applied to the bar middle end 241, the upper end portion 242 of the rod is rotated according to the rotational force, so that the elevation is achieved.

That is, when the motor 230 is driven, the top end portion 242 of the rod remains coupled to the rod holder 213 without being affected in any way, but manually rotates while holding the air volume control cone 220 by the user. When operated as , rotational force is transmitted to the bar middle end 241 so that the entire guide-elevating bar body 240 is rotated, so that the lifting operation is performed at the bar top end 242 in a screwed state.

Specifically, when the rod holder 213 is rotated in the direction of release, it descends, and when it rotates in the locking direction, it rises. As a result, the air volume control cone 220 is integral with the elevation of the upper end portion 242 of the rod. As it is raised and lowered, manual lifting is performed by the user's rotational manipulation.

The bar lower end 243 is a portion extending downward from the bar middle end 241 to the inside of the air volume control cone 220 by a predetermined length.

The lower end of the rod 243 guides the electric lift of the air volume control cone 220 according to the driving of the motor 230, and for this purpose, the power converter 250 is provided between the lower end of the rod 243 and the motor 230. are provided

The power conversion unit 250 is provided between the motor 230 inside the air volume control cone 220 and the lower end 243 of the bar, and converts the rotational force generated by driving the motor 230 into the lifting force of the air volume control cone 220. let it

As an embodiment, the power conversion unit 250 includes a rack gear 251 formed vertically on one side of the lower end portion 243 of the bar and the motor 230, as illustrated in FIGS. 6 and 7 . It may be configured to include a pinion 252 provided on the rotating shaft and meshed with the rack gear 251.

According to this configuration, when the motor 230 is driven, the rotational force of the motor 230 is converted into up and down linear motion by the rack gear 251 and the pinion 252, and the air volume control cone 200 rotates the lower end portion 243 of the bar The relative elevation is performed electrically along the .

In addition, as another embodiment, the power conversion unit 250, as illustrated in FIGS. 8 to 9, the screw society 253 provided on the rotational shaft of the motor 230 and one side surface of the bar lower end 243 It may be configured to include a first screw part 254 formed along the vertical direction and a second screw part 255 formed on the outer circumferential surface of the entire screw assembly 253 and screwed with the first screw part 254. .

According to this configuration, when the motor 230 is driven, the entire screw society 253 is rotated and the rotational force is converted into lifting motion by the screw coupling between the first screw part 254 and the second screw part 255, so that the lower end of the bar ( 243), the elevation is performed.

In the electric diffuser 200 configured as described above, basically, the air volume control cone 220 is moved up and down according to the driving control of the motor 230 by the control unit 500, so that the air volume is adjusted and the air volume is adjusted. In a special environment, the user holds the air volume control cone 220, rotates it, and manually lifts and lowers the air volume control cone 220, so that the air volume can be easily and manually adjusted.

In the individual ventilation system for each room of the present invention as described above, the air condition inside each room is sensed by a plurality of electric diffusers installed in each room or a sensor unit provided in a plurality of room stands, and the detected air condition information Accordingly, the degree of contamination inside each room is determined and the operation of the electric diffuser in each room is individually controlled.

That is, in the case of a room with high air pollution, the ventilation air volume of the electric diffuser is individually controlled to increase relative to the electric diffuser in other rooms. is individually controlled to reduce

Therefore, when compared with a conventional ventilation system in which each room is equally ventilated regardless of the air pollution level, optimal ventilation efficiency according to the air pollution level can be provided for each room, and unnecessary power consumption can be minimized.

In addition, in the individual ventilation system for each room of the present invention, the user can easily and quickly check the detailed contamination information on the filter member and information on the replacement time through the user terminal or the room stand, thereby improving the ventilation efficiency according to the contamination of the filter member. It is possible to more conveniently perform maintenance on the filter member while preventing deterioration.

In addition, the individual ventilation system for each room of the present invention is not only able to efficiently control the air volume through an electric method like a conventional electric diffuser, but also can easily adjust the air volume manually when necessary, so the use convenience is greatly increased. In addition, installation, maintenance, or replacement work can be performed more easily and conveniently.

Although the preferred embodiments of the present invention have been described in detail above, the technical scope of the present invention is not limited to the contents described in the above-described embodiments and drawings, and may be modified or modified by those skilled in the art. It will be said that the modified equivalent configuration does not deviate from the scope of the technical idea of the present invention.

The reference numerals for the main parts of the accompanying drawings are as follows.
100: Ventilator
200: electric diffuser
300: sensor unit
400: user terminal
500: control unit
600: filter contamination determination unit
700: room stand

Claims (6)

with a ventilation system;
a plurality of electric diffusers installed on the ceiling of each room in communication with the ventilation device;
A sensor unit for detecting the air condition inside each room, respectively;
A control unit for individually controlling the operation of each of the plurality of electric diffusers by determining the degree of pollution according to the air condition information in each room provided from the sensor unit; and a ventilation system for each room. According to claim 1,
Each of the plurality of electric diffusers includes an identification information unit that stores identification information of a room in which it is installed and provides it to a control unit,
The identification information is set by a user terminal portable by the user, each room individual ventilation system. According to claim 2,
The sensor unit is provided in each of a plurality of electric diffusers,
The user terminal includes a display unit for displaying air condition information inside each room detected by the sensor unit, each room individual ventilation system. According to claim 3,
Further comprising a filter contamination determination unit for determining the degree of contamination of the filter member provided in the ventilation device,
The display unit further displays filter contamination information and filter replacement information determined by the filter contamination determination unit, each room individual ventilation system. According to claim 2,
Further comprising a plurality of room stands disposed inside each room,
The sensor unit is provided in each of the plurality of room stands,
The room stand includes a display unit for displaying air condition information inside each room detected by the sensor unit, and an individual ventilation system for each room. According to claim 1,
The electric diffuser,
a body member installed on the ceiling;
an air volume control cone equipped with a motor and controlling air volume by moving up and down with respect to the main body member;
It is provided in the main body member to support the air volume control cone, and when the motor is driven, the air volume control cone is guided to move up and down relatively, and when the air volume control cone is manually rotated, it rotates integrally and moves up and down together with the air volume control cone. An individual ventilation system for each room, including; a guide-elevating rod body.

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