JP2016020780A - Ventilation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation system capable of suppressing operation noise caused by air supply for 24-hour ventilation within a building.SOLUTION: A ventilation system includes: a ventilation device that has an air supply side air blower 33 for air supply to send out outside air sucked from outside of a building to an indoor space inside the building and an air exhaust side air blower 32 for air exhaust to send out indoor air sucked from the indoor space to outside of the building and that simultaneously executes the air supply and the air exhaust independently to continuously perform constant ventilation; and a control device for controlling the air supply and the air exhaust performed by the ventilation device. While the air supply air blower 33 performs the constant ventilation at first rotational frequency, the control device performs rotational frequency reduction control 33 for switching the rotational frequency of the air supply air blower 33 to second rotational frequency smaller than the first rotational frequency.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a ventilation system including a ventilation device capable of performing ventilation for 24 hours in a building by simultaneously supplying and exhausting air.

  In recent years, equipment that can collectively control and monitor in-home equipment from the remote operation equipment by increasing consumer awareness of the environment and the widespread use of remote operation equipment such as mobile phones or tablet terminals with excellent convenience The demand for management systems is increasing. Examples of the equipment management system include a smart house, a HEMS (Home Energy Management System), a MEMS (Mansion Energy Management System), and a BEMS (Building Energy Management System).

  In the equipment management system, the equipment in the house can be collectively controlled according to the usage scene of the equipment. Further, in the equipment management system, wasteful use of the equipment can be suppressed by monitoring the power and operating state of the moving equipment by the user, and an energy saving effect can be obtained.

  There is no exception in ventilation equipment, and there is a need for improved energy-saving effects by suppressing over-operation of ventilation equipment through appropriate automatic control of air supply and exhaust according to the usage scene. For example, Patent Document 1 includes a simultaneous supply / exhaust ventilation device that performs heat exchange, and includes an outside air temperature detection device that detects outside air temperature. When the outside air temperature reaches a preset temperature, the supply air blower is stopped. Or a ventilator that performs control to reduce the rotational speed of the air supply blower.

JP 2010-223486 A

  However, in the case of a 24-hour ventilation system that performs 24-hour ventilation in a building, air supply is often supplied to a private room such as a living-dining kitchen, a bedroom, or a child room in the building. In the case of 24-hour ventilation, in a quiet space such as a bedroom at night or a private room such as a child's room, there is a possibility that a problem that disturbs sleep may occur due to driving noise of the air supply. The noise problem caused by the operation sound of the supply air is difficult to solve only by the supply air control based on the detection of the outside air temperature, and appropriate control suitable for the daily use scene is desired.

  This invention is made | formed in view of the above, Comprising: It aims at obtaining the ventilation system which can suppress the driving | running | working sound of the air supply in 24-hour ventilation in a building.

  In order to solve the above-described problems and achieve the object, a ventilation system according to the present invention includes an air supply blower for supplying air to send outside air sucked from the outside of the building into a room inside the building, and from the room A ventilator for exhausting the sucked room air to the outside of the building for exhausting the exhaust, and continuously performing ventilation by independently executing the supply air and the exhaust gas independently, and the ventilation A control device for controlling the air supply and the exhaust in the device, wherein the control device is configured to supply the air supply blower in a state where the air supply blower performs the regular ventilation at a first rotational speed. Rotational speed reduction control is performed to switch the rotational speed to a second rotational speed that is smaller than the first rotational speed.

  Advantageous Effects of Invention According to the present invention, there is an effect that a ventilation system capable of suppressing the operation sound of supply air in 24-hour ventilation in a building is obtained.

FIG. 1 is a block diagram showing a configuration of a ventilation system according to an embodiment of the present invention. FIG. 2 is a diagram illustrating a configuration example of the ventilation system according to the embodiment of the present invention in a general home. FIG. 3 is a diagram showing a communication network of the ventilation system according to the embodiment of the present invention. FIG. 4 is a flowchart showing an operation procedure of the ventilation system shown in FIG. FIG. 5 is a diagram showing a setting method of the air supply “weak” operation of the ventilation system by the remote control device. FIG. 6 is a diagram illustrating another configuration example of the setting screen of the heat exchange ventilator.

  Embodiments of a ventilation system according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited to the following description, In the range which does not deviate from the summary of this invention, it can change suitably. In the drawings shown below, the scale of each member may be different from the actual scale for easy understanding.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a configuration of a ventilation system according to an embodiment of the present invention. The ventilation system according to the present embodiment includes a remote control device 10, a home equipment centralized management device 20, a heat exchange ventilator 30, an air intake unit 40 with a shutter, a home wireless line 50, and a public wireless line 60. And a home communication line 70.

  The remote control device 10 is a mobile device such as a mobile phone or a tablet. The remote operation device 10 has a function of receiving instruction information for performing operations such as operation, stop, or adjustment of the air flow of the in-home equipment, and transmitting the instruction information to the in-home equipment central management device 20. The in-home equipment is various electronic devices arranged in a building, and here, the heat exchange ventilator 30 and the intake section 40 with a shutter are exemplified. Further, in-house equipment other than the heat exchange ventilator 30 and the intake section 40 with the shutter includes electronic equipment such as air conditioning equipment and sanitary exhaust equipment. The remote operation device 10 includes an input unit 11, a display unit 12, a communication unit 13, and a control unit 14. The input unit 11, the display unit 12, the communication unit 13, and the control unit 14 are connected to be communicable with each other.

  The input unit 11 is input means for inputting instruction information for the user to perform operations such as operation, stop, or adjustment of the air volume of the home equipment. In the present embodiment, rotation speed reduction instruction information that is rotation speed change instruction information is input from the input unit 11 to the remote operation device 10 by the user. The rotational speed reduction instruction information is a heat exchange air supply operation in the air supply side blower 33 of the heat exchange ventilator 30 at a second rotational speed that is lower than the predetermined first rotational speed during normal ventilation. Is instruction information. In other words, the rotational speed reduction instruction information is instruction information for instructing the heat exchange air supply operation in the air supply side blower 33 with the second air volume that is smaller than the predetermined first air volume. Hereinafter, the heat exchange air supply operation at the second rotational speed in the air supply side blower 33, that is, the heat exchange air supply operation at the second air volume in the air supply side blower 33 is referred to as an air supply “weak” operation. There is.

  Here, the first rotation speed is the rotation of the air supply side blower 33 of the heat exchange ventilator 30 in normal normal ventilation performed by the heat exchanging ventilator 30 with a small air volume even when there is no occupant or at night. And is set in advance in the control unit 36 of the home equipment centralized management device 20 or the heat exchange ventilation device 30. On the other hand, the second rotational speed of the air supply side blower 33 of the heat exchange ventilator 30 in the case where heat exchange air supply is performed at a rotational speed smaller than the first rotational speed in the regular ventilation of the heat exchange ventilator 30. The number of revolutions. The first air volume is the air volume of the supply air when the supply-side blower 33 of the heat exchange ventilator 30 is operated at the first rotation speed. The second air volume is the air volume of the supply air when the supply-side blower 33 of the heat exchange ventilator 30 is operated at the second rotation speed. In the rotation speed reduction instruction information, the rotation speed of the supply air blower 33 is changed from the first rotation speed to the first rotation speed when the supply air blower 33 of the heat exchange ventilator 30 is always ventilating at the first rotation speed. The information of the rotation speed reduction start time which is the time when the rotation speed reduction control for switching to the rotation speed of 2 is performed is included.

  In the present embodiment, the rotational speed return instruction information that is the rotational speed change instruction information is input from the input unit 11 to the remote operation device 10 by the user. The rotation speed return instruction information is the heat exchange supply at the first rotation speed for the heat exchange ventilator 30 performing the heat exchange air supply operation at the second rotation speed based on the rotation speed reduction instruction information. This is instruction information for instructing air driving. In other words, the rotational speed return instruction information cancels the heat exchange air supply operation at the second rotational speed that is smaller than the first rotational speed, and supplies the heat exchange ventilator 30 with the heat exchange air supply. This is instruction information for returning the rotational speed of the side blower 33 to the normal continuous ventilation operation state.

  In the rotation speed return instruction information, the rotation speed of the supply air blower 33 is changed from the second rotation speed to the first rotation speed when the supply air blower 33 of the heat exchange ventilator 30 is always ventilating at the second rotation speed. Information on the rotation speed return time, which is the time for performing the rotation speed return control to switch to the rotation speed of 1, is included. In addition, the rotation speed return instruction information includes the supply air blower 33 of the heat exchange ventilator 30 to start ventilation at the second rotation speed and then the supply air blower 33 at the second rotation speed. Information on the rotation speed reduction duration that specifies the duration of the energy may be included. The air supply side blower 33 of the heat exchange ventilator 30 releases the heat exchange air supply operation at the second rotational speed after performing the heat exchange air supply operation at the second rotational speed for the rotation speed reduction duration. Then, control is performed to return the rotational speed of the heat exchange air supply to the first rotational speed that is a normal constant ventilation operation state.

  The display unit 12 is a display unit that displays various types of information necessary for controlling or monitoring the home equipment such as the operation status of the home equipment or information input to the remote operation device 10. The communication unit 13 communicates various kinds of information necessary for controlling or monitoring a plurality of home equipment in the building with the home equipment centralized management device 20 via the home radio line 50 or the public radio line 60. Do. The control unit 14 controls the operation of the entire remote operation device 10.

  The home equipment centralized management apparatus 20 controls operations such as operation, stop, or air volume adjustment of a plurality of home equipment in the building by remote management. The home equipment centralized management device 20 includes a communication unit 21 and a control unit 22. The home equipment centralized management device 20 corresponds to HEMS. However, in this Embodiment, only the control regarding ventilation equipment is shown among the functions of HEMS in the premises equipment centralized management apparatus 20. FIG.

  The communication unit 21 communicates various types of information necessary for controlling or monitoring home equipment with the remote control device 10 via the home wireless line 50 or the public wireless line 60. In addition, the communication unit 21 communicates various information necessary for controlling or monitoring the home equipment via a home communication line 70 with a plurality of home equipment in the building. The control unit 22 controls the in-home equipment based on information transmitted from the remote operation device 10 via the in-home wireless line 50 or the public wireless line 60 or based on information preset in the control unit 22. Alternatively, various processes necessary for monitoring are controlled. The control unit 22 controls the supply of air in the heat exchange ventilator 30 based on, for example, the rotation speed change instruction information received from the remote operation device 10. The control unit 22 controls the operation of the home equipment centralized management apparatus 20 as a whole.

  In the state where the supply side blower 33 of the heat exchange ventilation device 30 is constantly performing the ventilation operation at the first rotational speed, the control unit 22 is based on the rotational speed reduction instruction information input from the remote operation device 10. Control can be performed to reduce the rotational speed of the air supply side blower 33 of the heat exchange ventilator 30 to the second rotational speed. That is, the control unit 22 sets the rotation speed of the air supply side blower 33 of the heat exchange ventilator 30 to the second rotation speed that is smaller than the first rotation speed. The rotation speed reduction control for switching the operation state can be performed.

  In other words, the control unit 22 supplies air based on the rotation speed reduction instruction information input from the remote operation device 10 in a state where the heat exchange ventilator 30 is always performing the ventilation operation with the predetermined first air volume. Control to reduce the air volume of the side blower 33 is performed. That is, the control unit 22 performs the rotation speed reduction control for switching the operation state of the air supply side fan 33 so that the air volume of the air supply side fan 33 is the second air volume that is smaller than the first air volume. . The control unit 22 performs the rotational speed reduction control at the rotational speed reduction start time included in the rotational speed reduction instruction information.

  In the state where the heat exchange ventilator 30 performs the heat exchange air supply operation at the second rotational speed by reducing the rotational speed of the air supply side blower 33 based on the rotational speed reduction instruction information, the control unit 22 Based on the rotational speed return instruction information input from the remote control device 10, the reduced state of the rotational speed of the air supply side blower 33 of the heat exchange ventilator 30 is canceled, and the rotational speed of the air supply side blower 33 is set to a normal constant time. Control to return to the state of ventilation operation. That is, the control unit 22 performs rotation speed return control for switching the operation state of the air supply side blower 33 so that the rotation speed of the supply side blower 33 is changed from the second rotation speed to the first rotation speed.

  In other words, in the state in which the heat exchange ventilation device 30 reduces the air volume of the air supply side blower 33 based on the rotation speed reduction instruction information and performs the heat exchange air supply operation with the second air volume, the control unit 22 Based on the rotation speed return instruction information input from the operating device 10, the rotation for releasing the reduction of the supply air volume of the heat exchange supply air and returning the air volume of the supply air blower 33 to the normal normal ventilation operation state is performed. Performs number return control. That is, the control unit 22 performs rotation speed return control for switching the operation state of the air supply side blower 33 so that the air volume of the air supply side blower 33 is changed from the second air volume to the first air volume.

  The control unit 22 performs rotation speed return control for switching the air volume of the heat exchange air supply from the second air volume to the first air volume based on the rotation speed return instruction information at the rotation speed return time included in the rotation speed return instruction information. It can be carried out.

  Further, the control unit 22 performs the rotation speed return control for switching the heat exchange air supply from the second air volume to the first air volume based on the rotation speed return instruction information, and the rotation speed reduction duration included in the rotation speed return instruction information. Can be done after elapse of time. Therefore, after the rotation speed reduction continuation time has elapsed, that is, after the supply air blower 33 of the heat exchange ventilation device 30 performs the heat exchange air supply operation at the second rotation speed for the reduction continuation time. Then, the heat exchange air supply operation at the second rotational speed in the air supply side blower 33 can be canceled, and the rotational speed of the air supply side blower 33 can be returned to the normal continuous ventilation operation state.

  The control part 22 performs the change process of the rotation speed of the supply side blower 33 as described above, that is, the change process of the supply air volume of the supply side blower 33, based on the rotation speed reduction instruction information and the rotation speed return instruction information. This is done by controlling the heat exchange ventilator 30. On the other hand, about the exhaust side air blower 32 of the heat exchange ventilation apparatus 30, a stop or rotation speed is not reduced.

  In addition, when the control unit 22 performs the rotation speed reduction control on the air supply side blower 33 of the heat exchange ventilator 30, the control unit 22 performs the opening / closing processing unit 42 of the intake unit 40 with the shutter based on the rotation speed reduction instruction information. Control is performed to open the shutter and open the air inlet 41 to the outside of the building. Further, when the rotational speed return control is performed on the air supply side blower 33 of the heat exchange ventilation device 30, the control unit 22 performs the opening / closing processing unit 42 of the intake unit 40 with the shutter based on the rotational speed return instruction information. Control is performed to close the intake port 41 by closing the shutter.

  That is, the control unit 22 performs control to open the intake port 41 to the outside of the building by opening the shutter of the opening / closing processing unit 42 of the intake unit 40 with shutter at the rotation speed reduction start time. In addition, the control unit 22 performs control to close the intake port 41 by closing the shutter of the opening / closing processing unit 42 of the intake unit 40 with shutter at the rotation speed return time.

  The heat exchange ventilator 30 includes a heat exchanger 31, an exhaust side blower 32, an air supply side blower 33, a heat exchanger operation switch 34, a communication unit 35, and a control unit 36. The heat exchange ventilator 30 is disposed in a space other than the room, such as the back of the ceiling of the hallway of the building or the back side of the ceiling surface of the hallway.

  The heat exchanger 31 is between the outside air introduced into the building from outside the building through the heat exchange ventilator 30 and the indoor air discharged from the room inside the building through the heat exchange ventilator 30 to the outside of the building. Perform heat exchange at. That is, the heat exchanger 31 performs heat exchange between the outside air sucked from outside the building and the indoor air sucked from the room inside the building. The heat exchanging ventilator 30 is connected to a first air supply air passage portion that is a duct that is disposed outside the building and communicates with the outside of the building. In addition, the heat exchange ventilator 30 is connected to a second air supply air passage section that is arranged up to one or a plurality of rooms and is formed of a duct communicating with the room. The heat exchanging ventilator 30 is connected to the first exhaust air passage section that includes a duct that is disposed outside the building and communicates with the outside of the building. In addition, the heat exchange ventilator 30 is connected to a second exhaust air passage section that is arranged up to one or a plurality of rooms and includes a duct communicating with the room.

  The exhaust-side blower 32 is a blower that blows air for heat exchange exhaust that sucks room air from the room inside the building and sends out the room air after heat exchange to the outside of the building for discharge. The exhaust side blower 32 has a function of a ventilator capable of continuously exhausting indoor air. The air supply side blower 33 is a blower that blows air for heat exchange air supply that draws in outside air from outside the building and sends out the outside air after heat exchange to the room. The supply side blower 33 has a function of a ventilation device capable of continuously supplying fresh air into the building.

  The heat exchanger operation switch 34 is a switch for inputting instruction information for the user to operate, stop, or adjust the air volume of the heat exchange ventilator 30, and is arranged in any room in the building. . In the present embodiment, the instruction information for performing operations such as operation, stop, or adjustment of the air volume of the heat exchange ventilation device 30 can also be input by the remote operation device 10. Then, the instruction information input by the remote operation device 10 is input to the communication unit 35 of the heat exchange ventilator 30 via the home facility device central management device 20. The instruction information input to the communication unit 35 of the heat exchange ventilator 30 is input to the control unit 36 of the heat exchange ventilator 30.

  The communication unit 35 communicates various information necessary for controlling or monitoring the heat exchange ventilator 30 via the in-home communication line 70 with the in-home equipment centralized management device 20.

  The control unit 36 controls the overall operation of the heat exchange ventilator 30.

  The heat exchanging ventilator 30 is a 24-hour ventilation system in which normal ventilation, that is, 24-hour ventilation is usually performed with a small air volume even when there are no occupants and at night. Here, the 24-hour ventilation system is a system in which indoor air is systematically replaced with a small amount of air using a machine such as a fan, and fresh air is always maintained. The 24-hour ventilation is intended to discharge VOC (Volatile Organic Compounds) generated from the house. By operating the exhaust side blower 32 and the supply side blower 33 at the same time, the outside air brought close to the room temperature by heat exchange between the outside air and the room air passes through the second air supply air passage section, and the bedroom, children's room, living room It is supplied to each room in the building such as dining kitchen. That is, fresh air brought close to room temperature is continuously supplied into each room. Below, the living dining kitchen 104 may be described as LDK104.

  The air intake unit 40 with the shutter supplies air in the building when the heat exchange ventilator 30 performs the air supply “weak” operation by reducing the rotation speed of the air supply side blower 33 based on the rotation speed reduction instruction information. It has a supplementary function. That is, even when the supply air blower 33 of the heat exchange ventilator 30 performs the supply “weak” operation based on the rotation speed reduction instruction information, the rotation speed of the exhaust air blower 32 is not reduced. The amount of air exhausted from the building is larger than the amount of air supplied from outside the building. In this case, by supplying air from the intake section 40 with the shutter, it is possible to supplement the supply of air into the building and maintain the supply / exhaust balance of the building.

  The shutter-equipped intake unit 40 includes an intake port 41, an open / close processing unit 42, a communication unit 43, and a control unit 44. The intake port 41 is installed on a wall of a space such as a living room or a kitchen, for example, in order to maintain a balance between supply and exhaust in the building, and is an intake port for supplying outside air, that is, fresh air into the building room. The opening / closing processor 42 opens or closes the intake port 41 by opening and closing the shutter, and controls the execution or stop of natural air supply by the atmospheric pressure in the room. The communication unit 43 communicates various information necessary for controlling the intake unit 40 with the shutter via the home communication line 70 with the home equipment centralized management device 20. The control unit 44 controls the overall operation of the intake unit 40 with a shutter.

  The in-house wireless line 50 is an in-building wireless communication line for communicating various types of information necessary for controlling or monitoring in-home equipment between the remote control device 10 and the in-home equipment centralized management device 20.

  The public wireless line 60 is a public wireless communication line for performing communication of various information necessary for controlling or monitoring the home equipment between the remote control device 10 and the home equipment centralized management device 20.

  The in-home communication line 70 communicates various information necessary for controlling or monitoring the in-home equipment between the in-home equipment centralized management device 20 and the in-home equipment such as the heat exchange ventilator 30 and the intake section 40 with the shutter. It is a communication line in the building for performing. The in-home communication line 70 may be a wired communication line or a wireless communication line.

  In the ventilation system according to the present embodiment configured as described above, when the heat exchange ventilator 30 is performing normal normal ventilation operation at a predetermined first rotation speed, the supply of the heat exchange ventilator 30 is performed. The air-side blower 33 is automatically controlled to perform the air supply “weak” operation at the second rotational speed that is lower than the first rotational speed. That is, in the ventilation system according to the present embodiment, in the state where the heat exchange ventilator 30 is performing normal normal ventilation operation with the predetermined first air volume, the supply side blower 33 of the heat exchange ventilator 30 is It is automatically controlled to perform the air supply “weak” operation with the second air volume that is smaller than the first air volume.

  In addition, the air supply side blower 33 of the heat exchange ventilator 30 performs the normal constant ventilation air supply operation at the first rotational speed in a state where the air supply “weak” operation is performed at the second rotational speed. It is automatically controlled to return. That is, the air supply side blower 33 of the heat exchange ventilator 30 returns to the normal constant ventilation air supply operation with the first air volume in the state where the air supply “weak” operation is performed with the second air volume. To be controlled automatically.

  Therefore, for example, heat exchange ventilation at night can be performed by performing a weak air supply operation in which the number of revolutions of the supply side blower 33 of the heat exchange ventilation device 30 is reduced, that is, the supply air amount of the supply side blower 33 is reduced. The air supply noise of the air supply side blower 33 of the device 30 can be reduced. Moreover, by reducing the rotation speed of the air supply operation of the air supply side blower 33 of the heat exchange ventilator 30 at night, the power consumption of the air supply side blower 33 can be suppressed, and an energy saving effect can be obtained.

  Next, an example of the operation of the ventilation system when the ventilation system according to the present embodiment is applied to a general home will be described. FIG. 2 is a diagram illustrating a configuration example of the ventilation system according to the present embodiment in a general home. FIG. 2 shows a state where an operation is performed in which the supply air volume of the heat exchange air supply in the heat exchange ventilator 30 is reduced at night in a state where ventilation is always performed by the heat exchange ventilator. In FIG. 2, the arrows indicate the flow of air, and the size of the arrows indicates the air volume. FIG. 3 is a diagram showing a communication network of the ventilation system according to the present embodiment.

  In FIG. 2, a sanitary exhaust device 210, which is an exhaust device that exhausts air from the toilet 101, which is a sanitary zone, and the bathroom 102 and the toilet 103, is disposed on the ceiling 200 of the bathroom 102 on the first floor of the house. . The sanitary exhaust device 210 communicates with the bathroom 102 through the ceiling of the bathroom 102. Further, the sanitary exhaust device 210 is connected to the first exhaust air passage portion 111 that is a duct disposed outside the building and communicating with the outside of the building. Further, the sanitary exhaust device 210 is connected to the second exhaust air passage portion 112 which is provided up to the toilet 101 and the washroom 103 and is formed of a duct communicating with the toilet 101 and the washroom 103.

  The sanitary exhaust device 210 communicates with the toilet 101, the bathroom 102, and the washroom 103. The total exhaust airflow from the toilet 101, the bathroom 102, and the washroom 103 is set as a constant air volume, and the toilet 101 Exhaust air from the bathroom 102 and the washroom 103.

  A heat exchange ventilator 30a is disposed on the ceiling 200 of the entrance hallway 105 on the first floor of the house. The heat exchanging ventilator 30a is connected to the first air supply air passage portion 121 that is a duct that is arranged to the outside of the building and communicates with the outside of the building. In addition, the heat exchange ventilator 30a is provided to the living / dining kitchen 104 and other rooms on the first floor (not shown) and is connected to the living / dining kitchen 104 and other rooms on the first floor (not shown). The air passage unit 122 is connected. The heat exchange ventilator 30a is connected to the third exhaust air passage portion 123 that is a duct that is disposed outside the building and communicates with the outside of the building. Further, the heat exchange ventilator 30a is provided in a fourth exhaust air passage (not shown) comprising a duct that is disposed up to the LDK 104 and another room on the first floor (not shown) and communicates with the LDK 104 and another room on the first floor (not shown). It is connected.

  The heat exchange ventilator 30 a is the heat exchange ventilator 30 described above, and includes a heat exchanger 31, an exhaust side fan 32, an air supply side fan 33, and a heat exchanger operation switch 34 disposed in the entrance hallway 105. The communication unit 35 and the control unit 36 are provided. In addition, about the heat exchanger 31, the communication part 35, and the control part 36, illustration is abbreviate | omitted.

  An air intake portion 40a with a shutter is arranged on the ceiling 200 of the living dining kitchen 104 on the first floor of the house. The shutter-equipped intake portion 40a is connected to an air supply air passage portion 131 including a duct disposed outside the building and communicating with the outside of the building. The shutter-equipped intake unit 40 a is the above-described shutter-equipped intake unit 40 and supplies outside air to the living-dining kitchen 104.

  An air intake section 40b with a shutter is disposed on the ceiling 200 of the living dining kitchen 104 on the first floor of the house. The shutter-equipped intake portion 40b communicates with the outside of the building through the wall of the ceiling 200, and supplies outside air into the building. The intake portion 40b with shutter is the intake portion 40 with shutter described above.

  An air conditioner indoor unit 140a is arranged in the living dining kitchen 104 on the first floor of the house. The air conditioning equipment indoor unit 140a is connected to an air conditioning equipment outdoor unit (not shown) disposed outside the building through an air passage portion including a duct (not shown).

  A remote operation device 10a is arranged in the living dining kitchen 104 on the first floor of the house. The remote control device 10a can be moved to any place in the building. The remote operation device 10a is the remote operation device 10 described above.

  There is a remote control device 10b carried by the user outside the building. The remote control device 10b can be moved to any place outside the building. The remote operation device 10b is the remote operation device 10 described above.

  In the bathroom 103 on the first floor of the house, a home equipment centralized management device 20 is arranged.

  A heat exchange ventilator 30b is arranged in the attic 400 of the second floor corridor 301 of the house. The heat exchanging ventilator 30b is arranged to the outside of the building and is connected to the first air supply air passage portion 121 which is connected to the outside of the building and includes a duct. Further, the heat exchange ventilator 30b is disposed up to the second floor room 302, room 303, and room 304, and is connected to the second air supply air passage section 122 that is connected to the room 302, room 303, and room 304 and includes a duct. ing. The heat exchanging ventilator 30b is disposed to the outside of the building and is connected to the third exhaust air passage portion 123 formed of a duct communicating with the outside of the building. The heat exchanging ventilator 30b is connected to a second exhaust air passage (not shown) including a duct which is provided up to the room 302, the room 303, and the room 304 on the second floor and communicates with the room 302, the room 303, and the room 304. Has been.

  The heat exchange ventilator 30b is the heat exchange ventilator 30 described above, and is a heat exchanger operation switch disposed in the heat exchanger 31, the exhaust side fan 32, the air supply side fan 33, and the corridor 301 on the second floor. 34, a communication unit 35, and a control unit 36. In addition, about the heat exchanger 31, the communication part 35, and the control part 36, illustration is abbreviate | omitted.

  For example, on the second floor, the air supplied to each room 302, 303, 304 by the heat exchange ventilator 30 b flows into the hallway 301 through the undercut or gallery 150 of the door of each room 302, 303, 304, and It is sucked into the heat exchanging ventilator 30b installed on the back side of the ceiling surface, exchanged for heat, and then discharged outside the building.

  An air conditioner indoor unit 140b is arranged in the room 304 on the second floor of the house. The air conditioning equipment indoor unit 140b is connected to an air conditioning equipment outdoor unit (not shown) disposed outside the building through an air passage portion including a duct (not shown).

  A toilet exhaust device 311 is arranged in the toilet 305 on the second floor of the house. The toilet exhaust device 311 communicates with the outside of the building through the wall of the toilet 305 and exhausts the toilet 305.

  In addition, the above-described home wireless line 50, public wireless line 60, and home communication line 70 are provided inside and outside the building. The remote operation device 10 and the home equipment centralized management device 20 can communicate with each other using the home wireless line 50 or the public wireless line 60 by the communication unit in each device. Communication between the remote control device 10 and the home equipment centralized management device 20 is performed by a communication unit in each device. In addition, the heat exchange ventilator 30a, the heat exchange ventilator 30b, the air intake unit 40a with the shutter, the air intake unit 40b with the shutter, the air conditioner indoor unit 140a, the air conditioner indoor unit 140b, the sanitary exhaust device 210, and the home equipment centralized management device 20 can communicate with each other by using a communication line 70 in each device.

  Next, the operation of the ventilation system configured as shown in FIG. 2 will be described. FIG. 4 is a flowchart showing an operation procedure of the ventilation system shown in FIG. In the following, the operations of the heat exchange ventilator 30a, the heat exchange ventilator 30b, the intake portion with shutter 40a, and the intake portion with shutter 40b, which are features of the present embodiment, will be described. First, in step S10, the heat exchange ventilator 30a and the heat exchange ventilator 30b perform normal normal ventilation, that is, 24-hour ventilation.

  In step S <b> 20, the remote operation device 10 a transmits the rotation speed change instruction information to the home equipment centralized management device 20. That is, the remote operation device 10a receives the rotation speed change instruction information about the heat exchange ventilator 30a and the heat exchange ventilator 30b input to the remote operation device 10a by the user via the in-house wireless line 50. The data is transmitted to the device central management apparatus 20. Further, the remote operation device 10b may transmit the rotation speed change instruction information input to the remote operation device 10b by the user to the home facility device central management apparatus 20 via the public wireless line 60. The rotation speed change instruction information includes rotation speed reduction instruction information and rotation speed return instruction information. Note that the rotational speed reduction instruction information and the rotational speed return instruction information may be individually transmitted. Then, when the residential equipment centralized management device 20 receives the rotation speed change instruction information for the heat exchange ventilator 30a and the heat exchange ventilator 30b, the control unit 22 holds the rotation speed change instruction information.

  FIG. 5 is a diagram showing a setting method of the air supply “weak” operation of the ventilation system by the remote control device 10a. The setting performed here is the setting of the rotation speed change instruction information. The heat exchange ventilator 30a and the heat exchanging ventilator 30b are heated during regular ventilation by setting the rotation speed change instruction information in the home equipment centralized management device 20 and setting the air supply “weak” operation. It is possible to surely shift to the air supply “weak” operation mode in which the air volume of the exchange air supply is reduced, and to return to normal normal ventilation. Therefore, the regular ventilation in the heat exchange ventilator 30a and the heat exchange ventilator 30b is reliably continued. For example, by setting the rotation speed change instruction information when the house is delivered, the air supply “weak” operation mode can be used from the beginning of living.

  As shown in FIG. 5, a setting screen 500 of the heat exchange ventilator is displayed on the remote control device 10a. First, the user sets whether or not to use the weak air supply operation function of the heat exchange ventilator 30a in the supply air “weak” operation function selection field 511 of the heat exchange ventilator setting screen 500. The weak operation function is a function in which the heat exchange ventilation device 30a performs the heat exchange air supply operation with the second air volume described above.

  When the weak driving function is used, “present” is selected in the supply air “weak” driving function selection field 511. The input unit 11 and the display unit 12 of the heat exchange ventilator 30a are configured by, for example, a touch panel, and information can be input using the touch panel. By setting “present” in the supply air “weak” operation function selection field 511, a notification setting field 512 for the air supply “weak” operation, a <start> setting time setting field for the air supply “weak” operation 513 and <end> setting time setting column 515 of the air supply “weak” operation are displayed.

  When “Yes” is selected in the notification setting field 512 for the air supply “weak” operation, when the rotation speed of the air supply side blower 33 of the heat exchange ventilator 30a is lowered, that is, the air volume of the air supply side blower 33 Is lowered, the in-home equipment centralized management device 20 notifies the remote control device 10a that the air supply operation is “weak”. The user can confirm that the heat exchange ventilator 30a is in the “weak” operation by viewing the notification.

  Also for the heat exchange ventilator 30b, the rotation speed change instruction information can be input on the setting screen 500 of the heat exchange ventilator shown in FIG. Also in the remote operation device 10b, the rotation speed change instruction information of the heat exchange ventilator 30a and the heat exchange ventilator 30b can be input on the heat exchange ventilator setting screen 500 shown in FIG. The rotation speed change instruction information for the heat exchange ventilator 30a and the rotation speed change instruction information for the heat exchange ventilator 30b may be in different conditions.

  In the <start> set time setting field 513 of the air supply “weak” operation, the rotation speed reduction start time is set. That is, in the <start> setting time setting field 513 of the supply air “weak” operation, the rotation speed of the supply air blower 33 of the heat exchange ventilator 30a is weakened, that is, the rotation speed of the supply air blower 33 is described above. The time to switch to the second rotation speed is selected. At the rotation speed reduction start time set in the <start> setting time setting field 513 of the air supply “weak” operation, the supply side blower 33 of the heat exchange ventilator 30a is set to the “weak” rotation speed, that is, constantly ventilated. The air supply “weak” operation starts at a lower speed than during operation.

  Further, in the <end> setting time setting field 515 of the air supply “weak” operation, the rotation speed return time is set. That is, in the <end> setting time setting field 515 of the supply air “weak” operation, the rotation speed of the supply-side blower 33 of the heat exchange ventilator 30a is returned to the original rotation speed, that is, the rotation speed during normal ventilation operation. Select the time to return to. The air supply side blower 33 of the heat exchange ventilator 30a returns the rotational speed to the original rotational speed at the rotational speed return time set in the <end> setting time setting field 515 of the air supply "weak" operation, That is, the air volume is returned to the original air volume, and for example, the air supply “strong” operation is started.

  The <start> set time setting field 513 for the air supply “weak” operation and the <end> set time setting field 515 for the air supply “weak” operation are set by the time selection fields 514 displayed in the respective lower areas. Can be selected.

  Further, as shown in FIG. 6, in the setting screen 500 of the heat exchange ventilator, instead of the <end> setting time setting column 515 for the air supply “weak” operation, the duration of the air supply “weak” operation is set. A column 516 may be provided. FIG. 6 is a diagram illustrating another configuration example of the setting screen 500 of the heat exchange ventilator. In the setting column 516 for the duration of the supply “weak” operation, the rotation speed reduction duration is set. In other words, in the setting column 516 for the duration of the supply “weak” operation, the supply-side blower 33 supplies the air “weak” at the time set in the <start> setting time setting column 513 for the supply “weak” operation. The duration of the air supply “weak” operation after the operation is started is set. The air supply side blower 33 of the heat exchange ventilator 30a has a rotational speed after the start of the air supply “weak” operation and after the elapse of the rotation speed reduction continuation time set in the duration setting column 516 of the air supply “weak” operation. Is returned to the original rotational speed, that is, the air volume of the air supply side blower 33 is returned to the original air volume, and for example, the air supply “strong” operation is started.

  In step S30, the heat exchange ventilator 30a and the heat exchange ventilator 30b start the air supply “weak” operation at the set time. That is, the home equipment centralized management device 20 performs the rotation speed reduction control on the heat exchange ventilator 30a and the heat exchange ventilator 30b based on the rotation speed reduction instruction information of the rotation speed change instruction information. It is performed at the <start> set time of the air supply “weak” operation included in the information, that is, the rotation speed reduction start time. With the rotation speed reduction control, the heat exchange ventilator 30a and the heat exchange ventilator 30b start the air supply “weak” operation.

  That is, the heat exchange ventilator 30a and the heat exchanging ventilator 30b are in a state where the normal air ventilation operation is performed with the predetermined first air volume, and the air supply side blower 33 supplies the air at the second rotational speed. “Weak” operation can be performed automatically. In other words, the heat exchange ventilator 30a and the heat exchange ventilator 30b are configured so that the air supply side blower 33 performs the air supply “weak” with the second air volume in a state where the normal continuous ventilation operation is performed at the first rotational speed. "Operation can be carried out automatically.

  In step S40, the air intake section 40 with the shutter starts to supply air. That is, the home equipment centralized management device 20 performs control to open the shutter of the intake unit 40 with the shutter at the rotation speed reduction start time based on the rotation speed change instruction information. Thus, the shutter-equipped intake unit 40 supplies outside air into the room through the intake port 41. That is, at the same time as the heat exchange ventilator 30a and the heat exchange ventilator 30b start the air supply “weak” operation, the shutter-equipped intake unit 40 starts air supply. Thereby, the air supply of the whole building is supplemented and it can suppress that the balance of the intake-exhaust in a building collapse | crumbles due to the air supply "weak" driving | operation in the heat exchange ventilation apparatus 30a and the heat exchange ventilation apparatus 30b. In addition, the intake unit 40 with the shutter continues to supply air when the heat exchange ventilator 30a and the heat exchange ventilator 30b are already supplying air when starting the air supply “weak” operation.

  In step S50, the heat exchange ventilator 30a and the heat exchange ventilator 30b end the air supply “weak” operation at the set time, and start the air supply operation in normal normal ventilation. That is, the home equipment centralized management device 20 performs the rotation speed return control on the heat exchange ventilator 30a and the heat exchange ventilator 30b on the basis of the rotation speed return instruction information of the rotation speed change instruction information. It is performed at the <end> set time of the air supply “weak” operation included in the information, that is, the rotation speed return time. With the rotation speed return control, the heat exchange ventilator 30a and the heat exchange ventilator 30b end the air supply “weak” operation and start the air supply operation in normal normal ventilation.

  That is, the heat exchanging ventilator 30a and the heat exchanging ventilator 30b are normally operated at the first rotational speed in a state where the air supply side blower 33 performs the air supply “weak” operation at the second rotational speed. It is possible to automatically return to the ventilation air supply operation. In other words, the heat exchanging ventilator 30a and the heat exchanging ventilator 30b are in a state where the air supply side blower 33 is performing the “weak” operation of air supply with the second air volume, and normal normal ventilation with the first air volume. It is possible to automatically return to the air supply operation.

  In step S60, the intake unit 40 with the shutter stops supplying air. That is, the home equipment centralized management device 20 performs control to close the shutter of the intake unit 40 with the shutter at the rotation speed return time based on the rotation speed return instruction information of the rotation speed change instruction information. Thus, the shutter-equipped intake unit 40 stops the supply of outside air into the room via the intake port 41. That is, at the same time as the heat exchange ventilator 30a and the heat exchange ventilator 30b start the air supply “weak” operation, the shutter-equipped intake unit 40 stops air supply. Thereby, it can suppress that the balance of the intake / exhaust in a building breaks down resulting from the heat exchange ventilator 30a and the heat exchange ventilator 30b shifting to the normal continuous ventilation air supply operation. In addition, when the heat exchange ventilator 30a and the heat exchange ventilator 30b start the air supply “weak” operation, the home equipment centralized management device 20 has already been supplying air when the shutter-equipped intake unit 40 has already supplied air. Then, the heat exchange ventilator 30a and the heat exchange ventilator 30b are controlled so as to continue the air supply even when the air supply “weak” operation is finished.

  In the above description, the case where the home equipment centralized control device 20 controls the heat exchange ventilator 30a, the heat exchange ventilator 30b, and the intake portion 40 with the shutter based on the rotation speed change instruction information has been described. Instead of the device central management device 20, each of the heat exchange ventilator 30a, the heat exchange ventilator 30b, and the air intake section 40 with the shutter may perform the above-described control based on the rotation speed change instruction information. The heat exchange ventilator 30a, the heat exchange ventilator 30b, and the air intake unit 40 with the shutter may acquire the rotation speed change instruction information from the home equipment centralized management device 20.

  As described above, in the ventilation system according to the present embodiment, the supply side of the heat exchange ventilator 30 in a state in which the heat exchange ventilator 30 is performing normal normal ventilation operation at the predetermined first rotational speed. The blower 33 can automatically perform the air supply “weak” operation at the second rotational speed that is lower than the first rotational speed. That is, in the ventilation system according to the present embodiment, in the state where the heat exchange ventilator 30 is performing normal normal ventilation operation with the predetermined first air volume, the supply side blower 33 of the heat exchange ventilator 30 is The air supply “weak” operation with the second air volume that is smaller than the first air volume can be automatically performed.

  In addition, the air supply side blower 33 of the heat exchange ventilator 30 performs the normal constant ventilation air supply operation at the first rotational speed in a state where the air supply “weak” operation is performed at the second rotational speed. It can be restored automatically. That is, the air supply side blower 33 of the heat exchange ventilator 30 is automatically switched to the normal constant ventilation air supply operation with the first air volume in the state where the air supply “weak” operation is performed with the second air volume. It is possible to return to

  Therefore, according to the ventilation system concerning this Embodiment, the ventilation system which can suppress the driving | running | working sound of the air supply in 24-hour ventilation in a building is realizable. As a result, it is possible to reduce the air supply operation sound that can be heard in a room such as a bedroom at night, eliminate discomfort during sleep, and provide a comfortable housing environment. Moreover, by reducing the air volume of the air supply operation of the air supply side blower 33 of the heat exchange ventilator 30 at night, the power consumption of the air supply side blower 33 can be suppressed, and an energy saving effect can be obtained.

  As described above, the ventilation system according to the present invention is useful for reducing operating noise of air supply in a quiet space such as a bedroom or a child room at night.

  10, 10a, 10b Remote control device, 11 input unit, 12 display unit, 13 communication unit, 14 control unit, 20 in-home equipment centralized management device, 21 communication unit, 22 control unit, 23 air supply side blower, 30, 30a , 30b Heat exchange ventilator, 31 Heat exchanger, 32 Exhaust air blower, 33 Supply air blower, 34 Heat exchanger operation switch, 35 Communication unit, 36 Control unit, 40, 40a, 40b Intake unit with shutter, 41 Intake Mouth, 42 Open / close processing unit, 43 Communication unit, 44 Control unit, 50 Home wireless line, 60 Public wireless line, 70 Home communication line, 101 Toilet, 102 Bathroom, 103 Toilet, 104 Living dining kitchen, 105 Entrance corridor, 111 1st exhaust air path part, 112 2nd exhaust air path part, 121 1st air supply air path part, 122 2nd air supply air path part, 23 Third exhaust air passage section, 131 Supply air passage section, 140a, 140b Air conditioner indoor unit, 150 gallery, 200 Ceiling back, 210 Sanitary exhaust device, 301 Corridor, 302, 303, 304 Living room, 305 Toilet, 311 Toilet exhaust Device, 400 Attic, 500 Setting screen, 511 Air supply “weak” operation function selection field, 512 Air supply “weak” operation notification setting field, 513 <Start> setting time of air supply “weak” operation Field, 514 Time selection field, 515 <End> setting time setting field for air supply “weak” operation, 516 Setting field for duration of air supply “weak” operation.

Claims (8)

An air supply blower for supplying air to send outside air sucked from outside the building into the room inside the building, and an exhaust fan for exhausting air to send indoor air sucked from the room to the outside of the building, A ventilation device that continuously performs ventilation by executing the supply air and the exhaust gas independently at the same time;
A control device for controlling the air supply and the exhaust in the ventilation device;
With
In the state where the air supply fan performs the regular ventilation at the first rotation speed, the control device sets the rotation speed of the supply air blower to a rotation speed less than the first rotation speed. Performing a rotational speed reduction control for switching to a rotational speed of 2.
Ventilation system featuring. The control device retains rotation speed reduction instruction information for instructing the rotation speed reduction control, and based on the rotation speed reduction instruction information, the rotation speed at a rotation speed reduction start time included in the rotation speed reduction instruction information. Performing reduction control,
The ventilation system according to claim 1. In the state in which the air supply blower performs the regular ventilation at the second rotation speed, the control device changes the rotation speed of the air supply blower from the second rotation speed to the first rotation speed. Performing rotation speed return control to switch to
The ventilation system according to claim 1 or 2. The control device retains rotation speed return instruction information for instructing the rotation speed return control, and based on the rotation speed return instruction information, returns the rotation speed at a rotation speed return time included in the rotation speed return instruction information. Doing control,
The ventilation system according to claim 3. The control device retains rotation speed return instruction information for instructing the rotation speed return control, and based on the rotation speed return instruction information, the air supply blower starts the regular ventilation at the second rotation speed. Then, the rotation speed return control is performed after elapse of the rotation speed reduction continuation time, which is included in the rotation speed return instruction information and designates the continuation time of the supply air at the second rotation speed in the supply air blower. What to do,
The ventilation system according to claim 3. The control device acquires the rotation speed reduction instruction information by communication from a remote control device located at a position away from the control device;
The ventilation system according to claim 2. The control device acquires the rotation speed return instruction information by communication from a remote control device located at a position away from the control device;
The ventilation system according to claim 4 or 5. An air intake section for performing or stopping supply of outside air from outside the building to the room;
The air intake unit supplies outside air from outside the building to the room when the ventilation device supplies air at a second rotation speed;
The ventilation system according to any one of claims 1 to 6.

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