JP7012217B2 - Ventilation device - Google Patents

Description

The present invention relates to a ventilation device that exhausts indoor air to the outside and supplies outdoor air to the room to ventilate the room.

Conventionally, as this type of ventilation device, a ventilation device having a humidifying function is known, in which outdoor air taken in from the outside is humidified and then supplied to the room to control the humidity of the room air. This type of humidifying ventilator detects the humidity of the room air and compares it to the target humidity. When the humidity of the indoor air is less than the target humidity, the humidification amount is determined based on the temperature and humidity of the outdoor air and the temperature and humidity of the indoor air to humidify. Further, when the indoor air is over-humidified, the humidification operation is stopped (for example, Patent Document 1).

International Publication No. 2016/002072

However, in the conventional ventilation device with a humidifying function, a sensor for detecting the humidity of the indoor air is provided at a place where the indoor air to be exhausted to the outside is collected. Therefore, when ventilating a plurality of rooms, the humidity of the indoor air detected by the sensor is the average of the humidity of each room. Therefore, when there is a bias in humidity for each room, there is a problem that it is difficult to comfortably humidify the entire house because the room with high humidity becomes over-humidified and the room with low humidity lacks humidification. rice field.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a ventilation device capable of appropriately humidifying each room.

In order to achieve this object, the ventilation device of the present invention includes a housing having an outdoor air inlet, an indoor air outlet, an indoor air inlet, and an outdoor air outlet, an outdoor air inlet, and an indoor air outlet. An air supply air passage that communicates with the air outlet, an exhaust air passage that communicates the indoor suction port and the outdoor air outlet, and an exhaust unit that sucks exhaust air from the indoor air inlet and guides it to the outdoor air outlet. And an air supply unit that sucks in air supply air from the outdoor suction port and guides it to the indoor air outlet, and the indoor air outlet is provided corresponding to each of a plurality of rooms. It is composed of room-specific indoor side outlets that blow out the supply air to the corresponding room, the indoor side suction port sucks exhaust air from the plurality of rooms, and the air supply air passage is the outdoor side suction. Of the supply air sucked from the mouth, a part of the supply air passes through and the humidified air supply air passage having a humidifying portion for humidifying the supply air, and the supply air sucked from the outdoor suction port. Of these, the non-humidified air supply air passage through which the supply air that did not pass through the humidified air supply air passage passes and makes the supply air air non-humidified, and the indoor air outlets for each room are provided corresponding to the above. A room-specific indoor air supply air passage that communicates with a room-specific indoor air outlet corresponding to the downstream side of the humidified air supply air passage and the non-humidified air supply air passage is provided, and the ventilation device is provided with a room-specific indoor air supply air passage. In the room-specific humidification side opening adjustment unit that adjusts the opening area of the humidified air supply air passage that is provided corresponding to the road and communicates with the room-specific indoor air supply air passage, and in each room-specific indoor air supply air passage. A room-specific non-humidified side opening adjusting unit for adjusting the opening area of the non-humidified air supply air passage that is provided correspondingly and communicates with the corresponding room-specific indoor air supply air passage, and a correspondingly provided for each of the plurality of rooms. The corresponding indoor side supply for each room is based on the humidity of the room detected by the corresponding indoor humidity sensor for each room and the corresponding indoor humidity sensor for each room. Controlling the corresponding room-specific humidified side opening adjustment unit and room-specific non-humidified side opening adjustment unit so as to adjust the opening area of the humidified air supply air passage communicating with the air passage and the opening area of the non-humidified air supply air passage. It is equipped with a control unit and a control unit.

According to the ventilation device of the present invention, a part of the supply air sucked from the outdoor suction port passes through the humidified supply air passage and is humidified in the humidified portion. Of the supply air sucked from the outdoor suction port, the supply air that has not passed through the humidified supply air passage passes through the non-humidified supply air passage without being humidified. On the other hand, the humidity of each room is detected by the room-specific humidity sensor provided corresponding to each room. Then, the control unit controls the room-specific humidifying side opening adjustment unit and the room-specific non-humidification side opening adjustment unit corresponding to each room, and based on the detected humidity of the room, the corresponding room-specific indoor air supply air passage. The opening area of the humidified air supply air passage and the opening area of the non-humidified air supply air passage communicating with the air passage are adjusted. As a result, it is possible to humidify each room according to the humidity of the room, so that there is an effect that appropriate humidification can be performed for each room.

It is a schematic diagram schematically showing the supply / exhaust type ventilation system which concerns on 1st Embodiment of this invention. It is a schematic diagram schematically showing the connection relationship between the supply / exhaust type ventilation system and the room ventilated by the supply / exhaust type ventilation device. (A) is a diagram showing the position of the first air supply damper when the ratio of the opening area of the humidified air supply air passage to the opening area of the non-humidified air supply air passage is 100: 0, and is shown in (b). 1 is a diagram showing the position of the first air supply damper when the ratio of the opening area of the humidified air supply air passage to the opening area of the non-humidified air supply air passage is 50:50, and FIG. 3C is a diagram showing the position of the first air supply damper. It is a figure which showed the position of the 1st air supply damper when the ratio of the opening area of the air supply air passage and the opening area of a non-humidified air supply air passage is 0: 100. It is a flowchart which shows the ventilation control processing which is executed in the control part of the same supply and discharge type ventilation apparatus. It is a flowchart which shows the ventilation control process which is executed in the control part of the supply / discharge type ventilation apparatus which concerns on 2nd Embodiment. It is a flowchart which shows the ventilation control processing which is executed in the control part of the supply / discharge type ventilation apparatus which concerns on 3rd Embodiment. It is a flowchart which shows the ventilation control process which is executed in the control part of the supply / discharge type ventilation apparatus which concerns on 4th Embodiment.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings. In addition, all of the embodiments described below show a preferable specific example of the present invention. Therefore, the numerical values, shapes, materials, components, arrangement positions and connection forms of the components, steps (processes), order of steps, and the like shown in the following embodiments are merely examples and limit the present invention. It is not the purpose of doing it. Therefore, among the components in the following embodiments, the components not described in the independent claims indicating the highest level concept of the present invention will be described as arbitrary components. Further, in each figure, the same reference numerals are given to substantially the same configurations, and duplicate explanations will be omitted or simplified.

(First Embodiment)
First, the supply / exhaust type ventilation device 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a schematic view schematically showing a supply / exhaust type ventilation device 1. FIG. 2 is a schematic diagram schematically showing the connection relationship between the supply / exhaust type ventilation device 1 and the room ventilated by the supply / exhaust type ventilation device 1.

In FIGS. 1 and 2, the supply / exhaust type ventilation device 1 exemplifies the ventilation of two rooms (the first room 40 and the second room 41 shown in FIG. 2). The number of rooms in which the type ventilation device 1 can be ventilated may be a plurality, and is determined according to the house in which the supply / exhaust type ventilation device 1 is installed.

As shown in FIG. 1, the supply / exhaust type ventilation device 1 has an outdoor air outlet 4 and an outdoor suction port 5 on the side surface of the box-shaped housing (main body) 2. Further, the supply / exhaust type ventilation device 1 has an indoor suction port 6 and a first indoor air outlet 7 and a second indoor air outlet as the indoor air outlet of the present invention on the side surface facing the side surface. Has 8 and.

As shown in FIG. 2, the first indoor air outlet 7 is provided corresponding to the first room 40, and the air is supplied to the corresponding first room 40 via the first air supply duct 44. Blow out. The second indoor air outlet 8 is provided corresponding to the second room 41, and blows the supply air to the corresponding second room 41 via the second air supply duct 45. In this way, the indoor air outlet is provided for each of a plurality of rooms where the air supply / exhaust type ventilation device 1 can be ventilated, and the indoor air outlet for each room (first room) that blows the supply air to the corresponding room is provided. It is composed of an inner air outlet 7 and a second indoor air outlet 8).

Further, the first room 40 is connected to the first exhaust duct 46, and the exhaust air of the first room 40 is sucked from the first exhaust duct 46. Further, the second room 41 is connected to the second exhaust duct 47, and the exhaust air of the second room 41 is sucked from the second exhaust duct 47. The first exhaust duct 46 and the second exhaust duct 47 are integrated into one exhaust duct 48, and the exhaust air of the first room 40 and the exhaust air of the second room 41 pass through the exhaust duct 48. It is sucked into the indoor suction port 6.

Here, the first indoor humidity sensor 42 is arranged in the first exhaust duct 46, and the second indoor humidity sensor 43 is arranged in the second exhaust duct 47. The first indoor humidity sensor 42 detects the humidity of the first room 40 from the exhaust air sucked from the first room 40 passing through the first exhaust duct 46. The second indoor humidity sensor 43 detects the humidity of the second room 41 from the exhaust air sucked from the second room 41 passing through the second exhaust duct 47. The humidity of the first room 40 detected by the first indoor humidity sensor 42 and the humidity of the second room 41 detected by the second indoor humidity sensor 43 are input to the control unit 20. ..

These first indoor humidity sensor 42 and second indoor humidity sensor 43 correspond to the room-specific indoor humidity sensor of the present invention. When there are three or more rooms ventilated by the supply / exhaust type ventilation device 1, the room-specific indoor humidity similar to the first indoor humidity sensor 42 and the second indoor humidity sensor 43 corresponds to each room. A sensor is installed in the exhaust duct of the corresponding room. The first indoor humidity sensor 42 and the second indoor humidity sensor 43 may be installed in any place as long as the humidity of the corresponding room can be detected. For example, the first room 40 or the second room. It may be provided directly to 41.

As shown in FIG. 1, the air supply / exhaust type ventilation device 1 includes an air supply air passage 10 that communicates the outdoor suction port 5 with the first indoor air outlet 7 and the second indoor air outlet 8. Further, the air supply / exhaust type ventilation device 1 includes an exhaust air passage 9 that communicates the indoor side suction port 6 and the outdoor side air outlet 4. The fresh outdoor air (outside air, supply air) introduced from the outdoor suction port 5 and the contaminated indoor air (exhaust air) introduced from the indoor suction port 6 are the supply fan 12 and the exhaust fan 13. The air supply air passage 10 and the exhaust air passage 9 flow through the operation of the air passage 10 and the exhaust air passage 9, respectively.

The air supply fan 12 constitutes the air supply unit of the present invention, and is downstream of the heat exchange element 14 described later and upstream of the humidified air supply air passage 25 and the non-humidified air supply air passage 26 described later in the air supply air passage 10. It is provided on the side. The air supply fan 12 guides the air supply air sucked from the outdoor suction port 5 to the first indoor air outlet 7 and the second indoor air outlet 8 through the air supply air passage 10.

On the other hand, the exhaust fan 13 constitutes the exhaust unit of the present invention, and is provided on the downstream side of the heat exchange element 14 in the exhaust air passage 9, and the exhaust air sucked from the indoor suction port 6 is taken into the exhaust air passage. Guide to the outdoor air outlet 4 through 9. The air guided to the outdoor outlet 4 is exhausted to the outside.

A heat exchange element 14 is arranged at a position where the supply air passage 10 and the exhaust air passage 9 intersect. The heat exchange element 14 constitutes the heat exchange unit of the present invention, and heat is generated by a total heat exchange method between the supply air passing through the supply air passage 10 and the exhaust air passing through the exhaust air passage 9. Make an exchange. The heat exchange element 14 supplies the total heat (temperature and humidity) of the exhausted air to the air to be supplied, or supplies the total heat of the supplied air to the exhausted air. In the present invention, the heat exchange element 14 has an arbitrary configuration, and the heat exchange element 14 may not be provided.

The air supply air passage 10 is divided into a humidified air supply air passage 25 and a non-humidified air supply air passage 26 on the downstream side of the heat exchange element 14 (further downstream side of the air supply fan 12). The humidified air supply air passage 25 and the non-humidified air supply air passage 26 are formed side by side in the vertical direction in the air supply air passage 10. The humidified air supply air passage 25 and the non-humidified air supply air passage 26 may be formed side by side in the air supply air passage 10.

The humidifying air supply air passage 25 is an air passage through which a part of the air supply air sucked from the outdoor suction port 5 passes, and a humidifying unit 15 is provided in the middle of the air passage.

The humidifying unit 15 constitutes the humidifying section of the present invention, and humidifies the supply air passing through the humidification supply air passage 25. The humidifying unit 15 in the present embodiment is, for example, a water crushing type humidifying unit that sprays water crushed by a centrifugal crushing method into air. The centrifugal crushing method is a method in which the water pumped by the rotation of the pumping pipe is discharged in the centrifugal direction, and the discharged water is collided with the collision wall to be crushed. The water crushing type humidification unit can easily adjust the humidification amount by adjusting the amount of water to be crushed by the rotation amount of the pumping pipe.

On the other hand, the non-humidified air supply air passage 26 is an air passage through which the air supply air sucked from the outdoor suction port 5 that did not pass through the humidified air supply air passage 25 passes. The non-humidified air supply air passage 26 is not provided with a humidification unit as in the humidified air supply air passage 25, and allows the passing air supply air to pass through without being humidified (as non-humidification).

Further, the air supply air passage 10 is provided corresponding to the first indoor air outlet 7, and communicates with the first indoor air outlet 7 on the downstream side of the humidified air supply air passage 25 and the non-humidified air supply air passage 26. A first indoor air supply air passage 29 is provided. Further, the air supply air passage 10 is provided corresponding to the second indoor air outlet 8, and communicates with the second indoor air outlet 8 on the downstream side of the humidified air supply air passage 25 and the non-humidified air supply air passage 26. A second indoor air supply air passage 30 is provided.

Here, the humidified air supply air passage 25 and the non-humidified air supply air passage 26 are formed side by side in the vertical direction in the air supply air passage 10, whereas the first indoor side air supply air passage 29 and the second indoor air supply air passage 29 are formed. The paths 30 are formed side by side in the air supply air passage 10. As a result, the humidified air supply air passing through the humidified air supply air passage 25 and the non-humidified air supply air passing through the non-humidified air supply air passage 26 are separated into the first indoor side air supply air passage 29 and the second air supply air passage 26. It can be guided to any of the indoor air supply air passages 30.

These first indoor air supply air passages 29 and second indoor air supply air passages 30 correspond to the room-specific indoor air supply air passages of the present invention. When three or more room-specific indoor air outlets are provided in the air supply / exhaust type ventilation device 1, the first indoor air supply air passage 29 and the second indoor air supply air passage correspond to the indoor air outlets for each room. Room-specific indoor air supply air passages similar to those in 30 are provided side by side in the air supply air passage 10.

When the humidified air supply air passage 25 and the non-humidified air supply air passage 26 are formed side by side in the air supply air passage 10 in the horizontal direction, a plurality of indoor air supply air passages for each room are arranged in the vertical direction in the air supply air passage 10. It is formed.

The supply / exhaust type ventilation device 1 is provided corresponding to the first indoor air supply air passage 29, and has an opening area of a humidified air supply air passage 25 communicating with the first indoor air supply air passage 29 and a non-humidified air supply air passage. A first air supply damper 27 for adjusting the opening area of 26 is provided. Further, the supply / exhaust type ventilation device 1 is provided corresponding to the second indoor air supply air passage 30, and has an opening area of a humidified air supply air passage 25 communicating with the second indoor air supply air passage 30 and a non-humidifying air supply. A second air supply damper 28 for adjusting the opening area of the air passage 26 is provided.

Both the first air supply damper 27 and the second air supply damper 28 correspond to the room-specific humidifying side opening adjusting unit and the room-specific non-humidifying side opening adjusting unit of the present invention. When three or more room-specific indoor air supply air passages are provided in the air supply / exhaust type ventilation device 1, the first air supply damper 27 and the second air supply damper 28 correspond to the indoor air supply air passages for each room. Similar air supply dampers are provided as the room-specific humidifying side opening adjusting portion and the room-specific non-humidifying side opening adjusting portion of the present invention.

Here, the first air supply damper 27 and the second air supply damper 28 have the same configuration and operation. Therefore, the details of the first air supply damper 27 will be described below, and the description of the second air supply damper 28 will be omitted.

The first air supply damper 27 is composed of one sliding damper whose ratio between the opening area of the humidified air supply air passage 25 and the opening area of the non-humidified air supply air passage 26 can be adjusted. Specifically, the first air supply damper 27 slides in the vertical direction at a position where the openings of the humidified air supply air passages 25 and the openings of the non-humidified air supply air passages 26 formed side by side in the vertical direction can be closed. It is installed as possible. Further, the first air supply damper 27 can completely close the opening of the humidified air supply air passage 25 according to the slided position, and can completely close the opening of the non-humidified air supply air passage 26. It has a size.

Here, with reference to FIG. 3, a method of adjusting the ratio between the opening area of the humidified air supply air passage 25 and the opening area of the non-humidified air supply air passage 26 by the first air supply damper 27 will be described. 3 (a) to 3 (c) show the opening of the humidified air supply air passage 25, the opening of the non-humidified air supply air passage 26, and the first supply when viewed from the side of the first indoor air supply air passage 29. It is the schematic which showed the positional relationship with the air damper 27 schematicly. Note that FIG. 3 shows a state in which the humidified air supply air passage 25 is provided on the upper side and the non-humidified air supply air passage 26 is provided on the lower side in the air supply air passage 10, but the positional relationship thereof is shown. May be reversed.

First, FIG. 3A shows the position of the first air supply damper 27 when the ratio of the opening area of the humidified air supply air passage 25 to the opening area of the non-humidified air supply air passage 26 is 100: 0. There is. In this case, by sliding the first air supply damper 27 to the lowermost side, the opening area of the non-humidified air supply air passage 26 can be set to 0, and only the humidified air supply air passage 25 can be opened. That is, the ratio of the opening area of the humidified air supply air passage 25 to the opening area of the non-humidified air supply air passage 26 can be set to 100: 0.

Next, FIG. 3B shows the position of the first air supply damper 27 when the ratio of the opening area of the humidified air supply air passage 25 to the opening area of the non-humidified air supply air passage 26 is 50:50. There is. In this case, by sliding the first air supply damper 27 to an intermediate position in the vertical direction, the opening area of the humidified air supply air passage 25 and the opening area of the non-humidified air supply air passage 26 can be made the same area. That is, the ratio of the opening area of the humidified air supply air passage 25 to the opening area of the non-humidified air supply air passage 26 can be 50:50.

Further, FIG. 3C shows the position of the first air supply damper 27 when the ratio of the opening area of the humidified air supply air passage 25 to the opening area of the non-humidified air supply air passage 26 is 0: 100. There is. In this case, by sliding the first air supply damper 27 to the uppermost position, the opening area of the humidified air supply air passage 25 can be set to 0, and only the non-humidified air supply air passage 26 can be opened. That is, the ratio of the opening area of the humidified air supply air passage 25 to the opening area of the non-humidified air supply air passage 26 can be set to 0: 100.

In this way, by sliding the first air supply damper 27 and changing the ratio between the opening area of the humidified air supply air passage 25 and the opening area of the non-humidified air supply air passage 26, the first indoor air supply air passage is changed. The ratio of the humidified supply air and the non-humidified supply air contained in 29 can be changed. As a result, the opening area of the humidified air supply air passage 25 and the opening area of the non-humidified air supply air passage 26 are adjusted based on the humidity of the first room 40 detected by the first indoor humidity sensor 42. , Humidification can be performed according to the humidity of the first room 40.

Then, also for the second room 41, the second air supply damper 28 is slid based on the humidity of the second room 41 detected by the second indoor humidity sensor 43, and the humidified air supply air passage 25 By changing the ratio between the opening area and the opening area of the non-humidified air supply air passage 26, the ratio of the humidified air supply air and the non-humidified air supply air contained in the second indoor air supply air passage 30 can be changed. Can be changed. As a result, the second room 41 can be humidified according to the humidity of the second room 41 separately from the first room 40.

That is, in the supply / exhaust type ventilation device 1, since humidification can be performed for each room according to the humidity of the room, appropriate humidification can be performed for each room.

Further, in the supply / exhaust type ventilation device 1, the first air supply damper 27 and the second air supply damper 28 are configured by the slide type dampers, and the humidifying air supply air passage 25 can be provided by simply sliding these dampers. Both the opening area and the opening area of the non-humidified air supply air passage 26 can be adjusted. Therefore, the opening area of the humidified air supply air passage 25 and the opening area of the non-humidified air supply air passage 26 can be easily and inexpensively adjusted.

Further, the total of the opening area of the humidified air supply air passage 25 adjusted by the first air supply damper 27 and the opening area of the non-humidified air supply air passage 26 is the humidification with the first air supply damper 27 removed. The area blocked by the first air supply damper 27 is subtracted from the total of the opening area of the air supply air passage 25 and the opening area of the non-humidified air supply air passage 26. That is, regardless of the position of the first air supply damper 27, the total of the opening area of the humidified air supply air passage 25 adjusted by the first air supply damper 27 and the opening area of the non-humidified air supply air passage 26 is It becomes constant. This is the same for the second air supply damper 28.

As a result, even if the first air supply damper 27 and the second air supply damper 28 are slid in order to humidify each room according to the humidity of the room, the opening area of the humidified air supply air passage 25 can be obtained. Since the total with the opening area of the non-humidified air supply air passage 26 is constant, the air supply air volume to each room can be kept substantially constant.

Returning to FIG. 1, the explanation will be continued. A control unit 20 for controlling the operation of the supply / discharge type ventilation device 1 is provided inside or outside the supply / discharge type ventilation device 1. The control unit 20 controls, for example, the current and / or the rotation speed of the exhaust motor of the exhaust fan 13 to control the exhaust air volume, and also controls the current and / or the rotation speed of the supply motor of the supply air fan 12. To control the air supply air volume. Further, the control unit 20 controls the humidification in the humidification unit 15.

Further, the control unit 20 controls the first air supply damper 27 and the second air supply damper 28 so as to humidify each room according to the humidity of the room, and the first indoor air supply air passage. The opening area of the humidified air supply air passage 25 and the opening area of the non-humidified air supply air passage 26 with respect to the 29 and the second indoor air supply air passage 30 are adjusted.

Next, the ventilation control process executed by the control unit 20 will be described with reference to FIG. FIG. 4 is a flowchart showing the ventilation control process. The ventilation control process is a process for controlling ventilation and humidification in the supply / exhaust type ventilation device 1. In the ventilation control process, the corresponding first air supply damper 27 or the second air supply damper 28 is controlled for each room based on the humidity of the room, and humidification is performed according to the humidity of each room. The ventilation control process is started by the control unit 20 when the supply / exhaust type ventilation device 1 starts the ventilation operation, and continues to be executed while the ventilation operation is being performed.

When the execution of the ventilation control process is started, first, the ventilation operation is started (S1). For example, in the process of S1, the exhaust fan 13 and the supply air fan 12 are operated so as to have a predetermined exhaust air volume and supply air volume to perform ventilation operation. Further, in the process of S1, the humidification unit 15 is operated to start the humidification operation.

Next, the target humidity HUM_TARGET is set (S2). The target humidity HUM_TARGET is stored in a storage unit (not shown) provided in the control unit 20 in advance. The target humidity HUM_TARGET can be changed by the user from an input device (not shown) that can be wirelessly or wiredly connected to the control unit 20. Examples of the input device include mobile information terminals such as smartphones and tablets, remote controllers, and the like.

Next, the loop process L1 that performs the processes S3 to S6 is executed for each of the plurality of rooms that can be ventilated by the supply / exhaust type ventilation device 1. In the loop processing L1, up to the number N of the target rooms are assigned to the variable i in the order of 1, 2, ..., And the processing of S3 to S6 is executed for each assigned value.

In the loop processing L1, first, the humidity HUM_RA (i) of the i-th room specified by the value assigned to the variable i is measured by the room-specific indoor humidity sensor corresponding to that room (S3). For example, when the variable i is 1, the humidity HUM_RA (1) of the first room 40 is measured by the first indoor humidity sensor 42. Further, when the variable i is 2, the humidity HUM_RA (2) of the second room 41 is measured by the second room side humidity sensor 43.

Next, it is determined whether or not the humidity HUM_RA (i) of the i-th room measured in the process of S3 is less than the target humidity HUM_TARGET set in the process of S2 (S4). In the process of S4, it may be determined whether or not the humidity HUM_RA (i) of the i-th room is equal to or less than the target humidity HUM_TARGET.

If the humidity HUM_RA (i) of the i-th room is less than the target humidity HUM_TARGET as a result of the processing of S4 (S4: Yes), the humidified air supply air passage communicating with the indoor air supply air passage for each room corresponding to the i-th room. The air supply damper corresponding to the i-th room is controlled so that the ratio of the opening area of 25 to the opening area of the non-humidified air supply air passage 26 is 100: 0 (S5).

For example, when the humidity HUM_RA (1) of the first room 40 is less than the target humidity HUM_TARGET, the opening area of the humidified air supply air passage 25 communicating with the first indoor air supply air passage 29 and the non-humidified air supply air passage 26 The first air supply damper 27 is controlled so that the ratio to the opening area is 100: 0. As a result, for a room where the humidity HUM_RA (i) is lower than the target humidity HUM_TARGET, the supply air humidified by the humidifying unit 15 is supplied at a rate of 100%, so that the humidity of the room is increased to the target humidity HUM_TARGET. be able to.

On the other hand, if the humidity HUM_RA (i) of the i-th room is equal to or higher than the target humidity HUM_TARGET as a result of the processing of S4 (S4: No), the humidification supply communicating with the room-specific indoor air supply air passage corresponding to the i-th room is provided. The air supply damper corresponding to the i-th room is controlled so that the ratio of the opening area of the air passage 25 to the opening area of the non-humidified air supply air passage 26 is 0: 100 (S6).

For example, when the humidity HUM_RA (2) of the second room 41 is equal to or higher than the target humidity HUM_TARGET, the opening area of the humidified air supply air passage 25 communicating with the second indoor air supply air passage 30 and the non-humidified air supply air passage 26 The second air supply damper 28 is controlled so that the ratio to the opening area is 0: 100. As a result, for a room where the humidity HUM_RA (i) is equal to or higher than the target humidity HUM_TARGET, the humidified supply air becomes 0% and the non-humidified supply air is supplied, so that the humidity of the room is excessive. Humidification can be suppressed.

When the processing of S5 or S6 is completed, if the variable i becomes N, 1 is added to the variable i to execute the processing of S3 to S6 for the next room. On the other hand, if the variable i is N, the processes S3 to S6 are executed for all the rooms, so the loop process L1 is exited and the process proceeds to S7. In the processing of S7, as a result of the loop processing L1, the ratio of the opening area of the humidified air supply air passage 25 to the opening area of the non-humidified air supply air passage 26 is 0: 100 for all the rooms. It is determined whether or not the air supply damper is controlled (S7).

As a result, when it is determined that the ratio of the opening area of the humidified air supply air passage 25 to the opening area of the non-humidified air supply air passage 26 is controlled to be 0: 100 for all the rooms (S7 :). Yes), the humidification unit 15 is turned off, and the humidification operation is stopped (S8).

For all rooms, if the air supply damper is controlled so that the ratio of the opening area of the humidified air supply air passage 25 to the opening area of the non-humidified air supply air passage 26 is 0: 100, for which room. However, the humidified air supply air is not supplied by the humidifying unit 15. Therefore, in such a case, energy saving can be achieved by stopping the humidification operation by the humidification unit 15.

On the other hand, as a result of the treatment of S7, the air supply damper is controlled so that the ratio of the opening area of the humidified air supply air passage 25 to the opening area of the non-humidified air supply air passage 26 is other than 0: 100 in at least one room. If it is determined that the humidification unit 15 has been turned on (S7: No), the humidification unit 15 is turned on to perform the humidification operation (S9). As a result, the humidified supply air can be supplied to the room where humidification is required.

After the processing of S8 or S9, the process returns to the processing of S2. Then, each process of S2, the loop process L1 (S3 to S6), and S7 to S9 is repeatedly executed.

The treatments of S2, loop processing L1 (S3 to S6), and S7 to S9 are 1 to 30 depending on the humidifying capacity of the humidifying unit 15, the number of rooms to be ventilated, the size of each room, and the like. It may be executed repeatedly every minute. This is because even if the ratio of the opening area of the humidified air supply air passage 25 to the opening area of the non-humidified air supply air passage 26 is adjusted by controlling the air supply damper, it takes 1 to 30 minutes until the humidity of the room changes. This is because it takes a certain amount. By executing each process of S2, loop process L1 (S3 to S6), and S7 to S9 every 1 to 30 minutes, it is possible to suppress unnecessary process execution.

As described above, according to the supply / exhaust type ventilation device 1 according to the first embodiment, a part of the supply air sucked from the outdoor suction port 5 has a humidified supply air passage 25. It passes through and is humidified by the humidifying unit 15. Of the supply air sucked from the outdoor suction port 5, the supply air that has not passed through the humidified supply air passage 25 passes through the non-humidified supply air passage 26 without being humidified.

On the other hand, the indoor humidity sensor for each room provided corresponding to each room (the first indoor humidity sensor 42 corresponding to the first room 40 and the second indoor humidity sensor 43 corresponding to the second room 41). ) Detects the humidity of each room.

Then, by the ventilation control process executed by the control unit 20, the corresponding air supply dampers (the first air supply damper 27 corresponding to the first room 40 and the second room 41 corresponding to the second room 41) correspond to each room. The air supply damper 28) is controlled. That is, based on the detected humidity of the room, the corresponding indoor air supply air passages for each room (the first indoor air supply air passages 29 corresponding to the first room 40 and the second room 41 corresponding to the second room 41). The opening area of the humidified air supply air passage 25 communicating with the indoor air supply air passage 30) and the opening area of the non-humidified air supply air passage 26 are adjusted. As a result, humidification can be performed for each room according to the humidity of the room, so that appropriate humidification can be performed for each room.

(Second Embodiment)
Next, the supply / exhaust type ventilation device 1 according to the second embodiment will be described with reference to FIG. The supply / exhaust type ventilation device 1 according to the first embodiment has described a case where it is determined for each room whether the humidity of the room is less than the target humidity. Then, if the humidity of the room is less than the target humidity, the air supply damper is controlled so that the ratio of the opening area of the humidified air supply air passage 25 to the opening area of the non-humidified air supply air passage 26 is 100: 0. If the humidity is equal to or higher than the target humidity, the air supply damper is controlled so that the ratio of the opening area of the humidified air supply air passage 25 to the opening area of the non-humidified air supply air passage 26 is 0: 100.

On the other hand, the supply / exhaust type ventilation device 1 according to the second embodiment sets the upper limit humidity and the lower limit humidity (however, upper limit humidity> target humidity> lower limit humidity) with respect to the target humidity. Then, in one room, if the humidity of the room is less than the lower limit humidity, the air supply is such that the ratio of the opening area of the humidified air supply air passage 25 to the opening area of the non-humidified air supply air passage 26 is 100: 0. Control the damper. After that, while the humidity of the one room is equal to or less than the upper limit humidity, the ratio between the opening area of the humidified air supply air passage 25 and the opening area of the non-humidified air supply air passage 26 is maintained.

The schematic configuration of the supply / exhaust type ventilation device 1 according to the second embodiment is the same as that of the supply / exhaust type ventilation device 1 according to the first embodiment, and a part of the ventilation control processing executed by the control unit 20 is different. .. Hereinafter, the supply / exhaust type ventilation device 1 according to the second embodiment will be described mainly on the differences from the supply / exhaust type ventilation device 1 according to the first embodiment. The same configurations and steps as those of the supply / exhaust type ventilation device 1 according to the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 5 is a flowchart showing a ventilation control process executed by the control unit 20 of the supply / exhaust type ventilation device 1 according to the second embodiment.

When this ventilation control process is executed, first, the same processes of S1 and S2 as the ventilation control process according to the first embodiment are executed, and then the process of S11 is executed.

In the process of S11, the upper limit humidity HUM_UPPER and the lower limit humidity HUM_LOWER are set from the target humidity HUM_TARGET set by the process of S2 (S11). The upper limit humidity HUM_UPPER is set by adding a fixed ratio or a fixed value to the target humidity HUM_TARGET. Further, the lower limit humidity HUM_LOWER is set by subtracting a fixed ratio or a fixed value from the target humidity HUM_TARGET.

For example, when the target humidity HUM_TARGET is 60%, in the process of S11, a fixed value of 3% is added to the target humidity HUM_TARGET to set the upper limit humidity HUM_UPPER to 63%. Further, in the process of S11, the lower limit humidity HUM_LOWER is set to 57% by subtracting a fixed value of 3% from the target humidity HUM_TARGET.

The upper limit humidity HUM_UPPER corresponds to the second threshold value of the present invention, and the lower limit humidity HUM_LOWER corresponds to the first threshold value of the present invention.

After the processing of S11, the loop processing L2 that performs the processing of S3 and S12 to S16 is executed for each of the plurality of rooms that can be ventilated by the supply / exhaust type ventilation device 1. In the loop processing L2, up to the number N of the target rooms are assigned to the variable i in the order of 1, 2, ..., And the processing of S3, S12 to S16 is executed for each assigned value.

In the loop process L2, first, the same process of S3 as the ventilation control process according to the first embodiment is executed, and then the process of S12 is executed. In the process of S12, it is determined whether or not the humidity HUM_RA (i) of the i-th room measured in the process of S3 is less than the lower limit humidity HUM_LOWER set in the process of S11 (S12). In the process of S12, it may be determined whether or not the humidity HUM_RA (i) of the i-th room is equal to or less than the lower limit humidity HUM_LOWER.

As a result of the processing of S12, if the humidity HUM_RA (i) of the i-th room is less than the lower limit humidity HUM_LOWER (S12: Yes), the humidified air supply air passage communicating with the indoor air supply air passage for each room corresponding to the i-th room. The air supply damper corresponding to the i-th room is controlled so that the ratio of the opening area of 25 to the opening area of the non-humidified air supply air passage 26 is 100: 0 (S12).

On the other hand, as a result of the processing of S12, if the humidity HUM_RA (i) of the i-th room is equal to or higher than the lower limit humidity HUM_LOWER (S12: No), then the humidity HUM_RA (i) of the i-th room is set by the processing of S11. It is determined whether or not the upper limit humidity is larger than HUM_UPPER (S14). In the process of S14, it may be determined whether or not the humidity HUM_RA (i) of the i-th room is equal to or higher than the upper limit humidity HUM_UPPER.

As a result of the processing of S14, if the humidity HUM_RA (i) of the i-th room is larger than the upper limit humidity HUM_UPPER (S14: Yes), the humidified air supply air passage 25 communicating with the indoor air supply air passage for each room corresponding to the i-th room. The air supply damper corresponding to the i-th room is controlled so that the ratio of the opening area of the non-humidified air supply air passage 26 to the opening area of the non-humidified air supply air passage 26 is 0: 100 (S15).

On the other hand, if the humidity HUM_RA (i) of the i-th room is equal to or less than the upper limit humidity HUM_UPPER as a result of the processing of S14 (S14: No), the state of the air supply damper corresponding to the i-th room is maintained (S16). ..

Here, the operation when the processes of S12 to S16 are executed will be described by taking the first room 40 as an example. For example, when the humidity HUM_RA (1) of the first room 40 is less than the lower limit humidity HUM_LOWER, the opening area and non-humidification of the humidified air supply air passage 25 communicating with the first indoor air supply air passage 29 by the treatment of S13. The first air supply damper 27 is controlled so that the ratio to the opening area of the air supply air passage 26 is 100: 0. As a result, the supply air humidified by the humidifying unit 15 is supplied to the first room 40, so that the humidity of the room can be increased.

After that, the humidity HUM_RA (1) of the first room 40 becomes higher due to humidification, and even if the humidity HUM_RA (1) exceeds the lower limit humidity HUM_LOWER, the treatment of S16 is performed until the upper limit humidity HUM_UPPER is exceeded. The state of the first air supply damper 27 is maintained. When the humidity HUM_RA (1) of the first room 40 exceeds the upper limit humidity HUM_UPPER, the opening area of the humidified air supply air passage 25 communicating with the first indoor air supply air passage 29 and the opening of the non-humidified air supply air passage 26 are opened. The first air supply damper 27 is controlled so that the ratio to the area is 0: 100. Then, the state of the first air supply damper 27 is maintained until the humidity HUM_RA (1) of the first room 40 becomes less than the lower limit humidity HUM_LOWER again.

When the processing of S13, S14 or S16 is completed, if the variable i is N, 1 is added to the variable i and the processing of S3, S12 to S16 for the next room is executed. On the other hand, if the variable i is N, the processes S3 and S12 to S16 are executed for all the rooms, so that the loop process L2 is exited and the same processes S7 to S9 as the ventilation control process according to the first embodiment are performed. Will be executed.

As described above, in the supply / exhaust type ventilation device 1 according to the second embodiment, the humidified air supply air volume is 100 until the room humidity HUM_RA (i) becomes a high upper limit humidity HUM_UPPER with respect to the target humidity HUM_TARGET. The state of the air supply damper corresponding to the room is maintained so as to be a percentage of%. On the contrary, the supply / exhaust type ventilator 1 of the air supply damper corresponding to the room so that the humidified air supply air volume becomes 0% until the lower limit humidity HUM_LOWER is low with respect to the target humidity HUM_TARGET. The state is maintained. Therefore, since it is suppressed that the air supply damper operates frequently in the vicinity of the target humidity HUM_TARGET, the driving noise generated when the air supply damper is driven can be reduced, and the durability of the air supply damper can be improved. Can be done.

(Third Embodiment)
Next, the supply / exhaust type ventilation device 1 according to the third embodiment will be described with reference to FIG. The supply / exhaust type ventilation device 1 according to the first embodiment controls a corresponding air supply damper according to whether or not the humidity of the room is less than the target humidity for each room, and is a separate room corresponding to the room. The ratio between the opening area of the humidified air supply air passage 25 communicating with the inner air supply air passage and the opening area of the non-humidified air supply air passage 26 was changed. On the other hand, the supply / exhaust type ventilation device 1 according to the third embodiment communicates with the corresponding indoor air supply air passage for each room according to the size of the difference between the humidity of the room and the target humidity for each room. The corresponding air supply damper is controlled so as to change the ratio of the opening area of the humidified air supply air passage 25 to the opening area of the non-humidified air supply air passage 26.

The schematic configuration of the supply / exhaust type ventilation device 1 according to the third embodiment is the same as that of the supply / exhaust type ventilation device 1 according to the first embodiment and the second embodiment, and is the ventilation control process executed by the control unit 20. Some processing is different. Hereinafter, the supply / exhaust type ventilation device 1 according to the third embodiment will be described mainly on the differences from the supply / exhaust type ventilation device 1 according to the first embodiment and the second embodiment. The same configurations and steps as those of the supply / exhaust type ventilation device 1 according to the first embodiment and the second embodiment are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 6 is a flowchart showing a ventilation control process executed by the control unit 20 of the supply / exhaust type ventilation device 1 according to the third embodiment.

When this ventilation control process is executed, first, the same processes of S1 and S2 as the ventilation control process according to the first embodiment are executed, and then the same process of S11 as the ventilation control process according to the second embodiment is executed. Is executed.

Next, the humidification limit humidity HUM_LIMIT is set from the target humidity HUM_TARGET set by the treatment of S2 (S21). This humidification limit humidity HUM_LIMIT is a threshold value for determining that when the room humidity HUM_RA (i) is less than the humidification limit humidity HUM_LIMIT, the difference from the target humidity HUM_TARGET is large and rapid humidification is necessary.

The humidification limit humidity HUM_LIMIT is set by subtracting a fixed ratio or a fixed value from the target humidity HUM_TARGET so that the value is smaller than the lower limit humidity HUM_LOWER.

For example, if the target humidity HUM_TARGET is 60% and the lower limit humidity HUM_LOWER is set to 57% by subtracting a fixed value of 3% from the target humidity HUM_TARGET, it is fixed to the target humidity HUM_TARGET in the processing of S21. The humidification limit humidity HUM_LIMIT is set by subtracting the value 10%.

The treatment of S11 and S21 has a relationship of upper limit humidity HUM_UPPER> target humidity HUM_TARGET> lower limit humidity HUM_LOWER> humidification limit humidity HUM_LIMIT.

After the processing of S21, the loop processing L3 that performs the processing of S3, S22 to S25, and S14 to S16 is executed for each of the plurality of rooms that can be ventilated by the supply / exhaust type ventilation device 1. In the loop processing L3, up to the number N of the target rooms are assigned to the variable i in the order of 1, 2, ..., And the processing of S3, S22 to S25, and S14 to S16 is executed for each assigned value. To.

In the loop process L3, first, the same process of S3 as the ventilation control process according to the second embodiment is executed, and then the process of S22 is executed. In the process of S22, it is determined whether or not the humidity HUM_RA (i) of the i-th room measured in the process of S3 is less than the humidification limit humidity HUM_LIMIT set in the process of S21 (S22). In the treatment of S22, it may be determined whether or not the humidity HUM_RA (i) of the i-th room is equal to or less than the humidification limit humidity HUM_LIMIT.

As a result of the processing of S22, if the humidity HUM_RA (i) of the i-th room is less than the humidification limit humidity HUM_LIMIT (S22: Yes), the humidified air supply air communicating with the indoor air supply air passage for each room corresponding to the i-th room. The air supply damper corresponding to the i-th room is controlled so that the ratio of the opening area of the road 25 to the opening area of the non-humidified air supply air passage 26 is 100: 0 (S23). As a result, when the humidity HUM_RA (i) of the room is low and the difference from the target humidity HUM_TARGET is large, the supplied air humidified by the humidifying unit 15 is supplied to the room at a rate of 100%. The room can be humidified rapidly.

On the other hand, as a result of the treatment of S22, if the humidity HUM_RA (i) of the i-th room is equal to or higher than the humidification limit humidity HUM_LIMIT (S22: No), then the humidity HUM_RA (i) of the i-th room is less than the lower limit humidity HUM_LOWER. It is determined whether or not it is (S24). In the process of S24, it may be determined whether or not the humidity HUM_RA (i) of the i-th room is equal to or less than the lower limit humidity HUM_LOWER.

As a result of the processing of S24, if the humidity HUM_RA (i) of the i-th room is less than the lower limit humidity HUM_LOWER (S24: Yes), the humidified air supply air passage communicating with the indoor air supply air passage for each room corresponding to the i-th room. The air supply damper corresponding to the i-th room is controlled so that the ratio of the opening area of 25 to the opening area of the non-humidified air supply air passage 26 is 50:50 (S25).

As a result, when the humidity HUM_RA (i) of the room is low and the difference from the target humidity HUM_TARGET is small, the supplied air humidified by the humidifying unit 15 is supplied to the room at a rate of 50%. Therefore, while it is possible to reliably humidify the room, it is possible to circulate a large amount of supplied air humidified by the humidifying unit 15 to a room that requires rapid humidification, and such a room is given priority. Can be humidified. Therefore, the humidity of the room where the humidity is low and the difference from the target humidity HUM_TARGET is large is preferentially improved, so that the comfort of the whole house can be raised at an early stage.

On the other hand, if the humidity HUM_RA (i) of the i-th room is equal to or higher than the lower limit humidity HUM_LOWER as a result of the treatment of S24 (S24: No), then the treatments of S14 to S16 of the ventilation control processing according to the second embodiment are performed. Execute.

By the processing of S25, the ratio of the opening area of the humidified air supply air passage 25 communicating with the indoor air supply air passage for each room corresponding to the i-th room to the opening area of the non-humidified air supply air passage 26 is 50:50. After the air supply damper corresponding to the i-th room is controlled, the state of the air supply damper is maintained by the processing of S16 while the humidity HUM_RA (i) of the room is equal to or less than the upper limit humidity HUM_UPPER.

When the humidity HUM_RA (i) of the room exceeds the upper limit humidity HUM_UPPER, the opening area of the humidified air supply air passage 25 communicating with the indoor air supply air passage for each room corresponding to the i-th room and the non-humidified air supply air by the treatment of S15. The air supply damper corresponding to the i-th room is controlled so that the ratio to the opening area of the road 26 is 0: 100. Then, the state of the air supply damper is maintained until the humidity HUM_RA (i) in the room becomes less than the lower limit humidity HUM_LOWER again.

Therefore, the supply / exhaust type ventilation device 1 according to the third embodiment can suppress the frequent operation of the air supply / exhaust damper in the vicinity of the target humidity HUM_TARGET, similarly to the supply / exhaust type ventilation device 1 according to the second embodiment. As a result, it is possible to reduce the driving noise generated when the air supply damper is driven and to improve the durability of the air supply damper.

When the processing of S23, S25, S15 or S16 is completed, if the variable i becomes N, 1 is added to the variable i and the processing of S3, S22 to S25 and S14 to S16 for the next room is executed. On the other hand, if the variable i is N, the processes S3, S22 to S25, and S14 to S16 are executed for all the rooms, so that the loop process L3 is exited and S7 to the same as the ventilation control process according to the first embodiment. The process of S9 is executed.

As described above, the supply / exhaust type ventilation device 1 according to the third embodiment is humidified to communicate with the corresponding indoor air supply air passage for each room according to the difference between the room humidity HUM_RA (i) and the target humidity HUM_TARGET. The corresponding air supply damper is controlled so as to change the ratio between the opening area of the air supply air passage 25 and the opening area of the non-humidified air supply air passage 26.

Specifically, when the humidity HUM_RA (i) of the room is lower than the humidification limit humidity HUM_LIMIT and the difference from the target humidity HUM_TARGET is large, the opening area of the humidified air supply air passage 25 and the opening area of the non-humidified air supply air passage 26 The air supply damper is controlled so that the ratio with and is 100: 0. As a result, the supply air humidified by the humidifying unit 15 is supplied to the room at a rate of 100%, so that the room can be humidified rapidly.

On the other hand, when the humidity HUM_RA (i) of the room is higher than the humidification limit humidity HUM_LIMIT and the difference from the target humidity HUM_TARGET is small, the ratio between the opening area of the humidified air supply air passage 25 and the opening area of the non-humidified air supply air passage 26 The air supply damper is controlled so that is 50:50. As a result, the supply air humidified by the humidifying unit 15 is supplied to the room at a rate of 50%.

Therefore, while it is possible to reliably humidify the room, it is possible to circulate a large amount of supplied air humidified by the humidifying unit 15 to a room that requires rapid humidification, and such a room is given priority. Can be humidified. Therefore, the humidity of the room where the humidity is low and the difference from the target humidity HUM_TARGET is large is preferentially improved, so that the comfort of the whole house can be raised at an early stage.

(Fourth Embodiment)
Next, the supply / exhaust type ventilation device 1 according to the fourth embodiment will be described with reference to FIG. 7. The supply / exhaust type ventilation device 1 according to the first embodiment has described the case where the target humidity is set collectively for all the rooms to be ventilated. On the other hand, the supply / exhaust type ventilation device 1 according to the fourth embodiment can set the target humidity for each room to be ventilated.

The schematic configuration of the supply / exhaust type ventilation device 1 according to the fourth embodiment is the same as that of the supply / exhaust type ventilation device 1 according to the first embodiment, and a part of the ventilation control processing executed by the control unit 20 is different. .. Hereinafter, the supply / exhaust type ventilation device 1 according to the fourth embodiment will be described mainly on the differences from the supply / exhaust type ventilation device 1 according to the first embodiment. The same configurations and steps as those of the supply / exhaust type ventilation device 1 according to the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 7 is a flowchart showing a ventilation control process executed by the control unit 20 of the supply / exhaust type ventilation device 1 according to the fourth embodiment.

When this ventilation control process is executed, first, the same process of S1 as the ventilation control process according to the first embodiment is executed. Next, the loop process L4 that performs the processes of S31, S3, and S32 to S34 is executed for each of the plurality of rooms that can be ventilated by the supply / exhaust type ventilation device 1. In the loop processing L4, up to the number N of the target rooms are assigned to the variable i in the order of 1, 2, ..., And the processing of S31, S3, S32 to S34 is executed for each assigned value.

In the loop processing L4, first, the target humidity HUM_TARGET (i) of the i-th room specified by the value assigned to the variable i is set. The target humidity HUM_TARGET (i) is stored in a storage unit (not shown) provided in the control unit 20 in advance for each room. The target humidity HUM_TARGET (i) of each room can be changed by the user for each room from the input device (not shown) described in the first embodiment.

Next, the same process of S3 as the ventilation control process according to the first embodiment is executed, and then the process of S32 is executed. In the processing of S32, it is determined whether or not the humidity HUM_RA (i) of the i-th room measured in the processing of S3 is less than the target humidity HUM_TARGET (i) set in the i-th room in the processing of S31. (S32). In the process of S32, it may be determined whether or not the humidity HUM_RA (i) of the i-th room is equal to or less than the target humidity HUM_TARGET (i) of the i-th room.

As a result of the processing of S32, if the humidity HUM_RA (i) of the i-th room is less than the target humidity HUM_TARGET (i) set for the i-th room (S32: Yes), the room separate room corresponding to the i-th room The air supply damper corresponding to the i-th room is controlled so that the ratio of the opening area of the humidified air supply air passage 25 communicating with the inner air supply air passage to the opening area of the non-humidified air supply air passage 26 is 100: 0 ( S33). As a result, the supply air humidified by the humidifying unit 15 is supplied at a rate of 100% to the room where the humidity HUM_RA (i) of a certain room is lower than the target humidity HUM_TARGET (i) set in the room. Therefore, the humidity of the room can be increased to the target humidity HUM_TARGET (i) set in the room.

On the other hand, as a result of the processing of S32, if the humidity HUM_RA (i) of the i-th room is equal to or higher than the target humidity HUM_TARGET (i) set in the i-th room (S32: No), it corresponds to the i-th room. The air supply damper corresponding to the i-th room is controlled so that the ratio of the opening area of the humidified air supply air passage 25 communicating with the indoor air supply air passage for each room to the opening area of the non-humidified air supply air passage 26 is 0: 100. (S34). As a result, for a room where the humidity HUM_RA (i) of a certain room is equal to or higher than the target humidity HUM_TARGET (i) set for that room, the humidified supply air becomes 0%, and the non-humidified supply air becomes 0%. Is supplied, so that it is possible to prevent the humidity of the room from becoming excessively humidified.

When the processing of S33 or S34 is completed, if the variable i becomes N, 1 is added to the variable i to execute the processing of S31, S3, S32 to S34 for the next room. On the other hand, if the variable i is N, the processes S31, S3, and S32 to S34 are executed for all the rooms, so that the loop process L4 is exited and the same S7 to S9 as the ventilation control process according to the first embodiment. The process is executed.

As described above, according to the supply / exhaust type ventilation device 1 according to the fourth embodiment, the target humidity HUM_TARGET (i) is set for each room. Then, the corresponding air supply damper is controlled based on the humidity HUM_RA (i) of the current room and the HUM_TARGET (i) set for the room. As a result, even if the target humidity HUM_TARGET (i) for each room is different, the humidified air supply is performed for the room where the humidity HUM_TARGET (i) of the room is lower than the target humidity HUM_TARGET (i) set for the room. Air can be supplied, and non-humidified supply air can be supplied to a room in which the humidity of the room HUM_TARGET (i) is higher than the target humidity HUM_TARGET (i) set for the room. Therefore, for example, the target humidity HUM_TARGET (i) is set high in the children's room, and the target humidity HUM_TARGET (i) is set low in the daytime bedroom where there are no people. By setting each according to the user's preference, it is possible to maintain a comfortable humidity in each room.

Although the present invention has been described above based on the embodiments, the present invention is not limited to the above embodiments, and it is easy to make various improvements and modifications without departing from the spirit of the present invention. It can be inferred. For example, each embodiment may have a part or a plurality of parts of the configuration of another embodiment added to the embodiment or exchanged with a part or a plurality of parts of the structure of the embodiment. The embodiment may be modified and configured. Further, the numerical values given in each of the above embodiments are examples, and it is naturally possible to adopt other numerical values.

In the second and third embodiments, the target humidity HUM_TARGET is collectively set for all the rooms to be ventilated, but as in the supply / exhaust type ventilation device 1 according to the fourth embodiment, the target humidity is set. The target humidity HUM_TARGET (i) may be set for each room.

In the supply / exhaust type ventilation device 1 according to the third embodiment, the humidification limit humidity HUM_LIMIT, the lower limit humidity HUM_LOWER, and the upper limit humidity HUM_UPPER are used as the thresholds for determining the humidity HUM_TARGET (i) of the room. The case where the air supply damper is controlled so as to adjust the ratio between the opening area of the humidified air supply air passage 25 and the opening area of the non-humidified air supply air passage 26 in three stages has been described. On the other hand, four or more threshold values for determining the humidity HUM_TARGET (i) of the room are prepared, and the ratio between the opening area of the humidified air supply air passage 25 and the opening area of the non-humidified air supply air passage 26 is adjusted in four or more stages. The air supply damper may be controlled. Then, the lower the humidity HUM_RA (i) in the room and the larger the difference from the target humidity HUM_TARGET, the larger the opening area of the humidified air supply air passage 25 is as compared with the opening area of the non-humidified air supply air passage 26. The air damper may be controlled. As a result, the more the room requires rapid humidification, the more the supply air humidified by the humidification unit 15 can be turned, so that such a room can be preferentially humidified.

In each of the above embodiments, the air supply damper provided corresponding to each room is composed of one slide type damper, and by sliding the air supply damper, humidification supply that communicates with the corresponding indoor air supply air passage for each room is provided. The case of adjusting the ratio between the opening area of the air passage 25 and the opening area of the non-humidified supply air passage 26 has been described. On the other hand, the humidifying side damper that changes the opening area of the humidifying air supply air passage 25 that communicates with the indoor air supply air passage for each room for each indoor air supply air passage for each room, and the non-humidifying air supply air passage that communicates with the indoor air supply air passage for each room. It may be provided with a non-humidifying side damper that changes the opening area of the humidifying air supply air passage 26. Then, by controlling the humidifying side damper and the non-humidifying side damper corresponding to the room side air supply air passage for each room according to the humidity of the room for each room, the room communicates with the indoor air supply air passage for each room. The opening area of the humidified air supply air passage 25 and the opening area of the non-humidified air supply air passage 26 may be adjusted.

By separately providing a humidifying side damper that changes the opening area of the humidifying air supply air passage 25 and a non-humidifying side damper that changes the opening area of the non-humidifying air supply air passage 26, the opening area and non-humidifying air supply air passage 25 are provided separately. The adjustment with the opening area of the humidified air supply air passage 26 can be finely performed.

Even in this case, the humidifying side is such that the ratio of the opening areas is changed so that the total of the opening area of the humidified air supply air passage 25 and the opening area of the non-humidified air supply air passage 26 is constant. It is preferable to control the damper and the non-humidifying side damper. As a result, even if the ratio of the opening area of the humidified air supply air passage 25 to the opening area of the non-humidified air supply air passage 26 is changed according to the humidity of the room, the total of these opening areas becomes constant, so that each room. The amount of air supplied to the air can be kept substantially constant.

Further, in each of the above embodiments, the case where the water crushing type humidification unit is used as the humidification unit 15 has been described, but the present invention is not necessarily limited to this. For example, the humidifying unit 15 may be one that crushes and humidifies water by ultrasonic vibration.

The ventilation device according to the present invention is effective as a ventilation device that exhausts indoor air to the outside and supplies outdoor air to the room to ventilate the room.

1 Supply / exhaust type ventilation system 2 Housing 4 Outdoor air outlet 5 Outdoor air inlet 6 Indoor air inlet 7 1st indoor air outlet 8 2nd indoor air outlet 9 Exhaust air passage 10 Air supply air passage 12 Supply Air fan 13 Exhaust fan 14 Heat exchange element 15 Humidification unit 20 Control unit 25 Humidified air supply air duct 26 Non-humidified air supply air duct 27 First air supply damper 28 Second air supply damper 29 First indoor air supply air duct 30 2nd indoor air supply air passage 40 1st room 41 2nd room 42 1st indoor humidity sensor 43 2nd indoor humidity sensor 44 1st air supply duct 45 2nd air supply duct 46th 1 exhaust duct 47 2nd exhaust duct 48 exhaust duct

Claims (8)

A housing having an outdoor suction port, an indoor air outlet, an indoor suction port, and an outdoor air outlet,
An air supply air passage that communicates the outdoor suction port and the indoor air outlet,
An exhaust air passage that communicates the indoor suction port and the outdoor air outlet, and
An exhaust unit that sucks exhaust air from the indoor suction port and guides it to the outdoor outlet.
A ventilation device including an air supply unit that sucks air supply air from the outdoor suction port and guides it to the indoor air outlet.
The indoor air outlet is provided corresponding to each of a plurality of rooms, and is composed of a room-specific indoor air outlet that blows the supply air to the corresponding room.
The indoor suction port sucks exhaust air from the plurality of rooms.
The air supply air passage is
A humidified air supply air passage having a humidifying portion through which a part of the air supply air sucked from the outdoor suction port passes and humidifies the air supply air.
Of the supply air sucked from the outdoor suction port, the non-humidified supply air passage through which the supply air that did not pass through the humidified supply air passage passes and makes the supply air non-humidified, and the non-humidified supply air passage.
A room-specific indoor air supply air passage that is provided corresponding to each of the room-specific indoor air outlets and communicates with the room-specific indoor air outlet corresponding to the humidified air supply air passage and the corresponding downstream side of the non-humidified air supply air passage. Equipped with
The ventilation device is
A room-specific humidifying side opening adjusting unit that is provided corresponding to each room-specific indoor air supply air passage and that adjusts the opening area of the humidified air supply air passage that communicates with the corresponding room-specific indoor air supply air passage.
A room-specific non-humidifying side opening adjustment unit that is provided corresponding to each room-specific indoor air supply air passage and that adjusts the opening area of the non-humidifying air supply air passage that communicates with the corresponding room-specific indoor air supply air passage.
A room-specific indoor humidity sensor that is provided for each of the plurality of rooms and detects the humidity of the corresponding room,
For each room, based on the humidity of the room detected by the corresponding indoor humidity sensor for each room, the opening area of the humidified air supply air passage communicating with the corresponding indoor air supply air passage for each room and the non-humidifying air supply. A ventilation device including a control unit for controlling the room-specific humidifying side opening adjustment unit and the room-specific non-humidification side opening adjustment unit so as to adjust the opening area of the air passage. The control unit
When the humidity of the room detected by the indoor humidity sensor for each room is less than the first threshold value for one room, the humidified air supply air communicating with the indoor air supply air passage for each room corresponds to the room. The room-specific humidifying side opening adjusting section and the room-specific non-humidifying side opening adjusting section are controlled so that the opening area of the path is larger than the opening area of the non-humidified air supply air passage.
After that, in the one room, as long as the humidity of the room detected by the corresponding indoor humidity sensor for each room is equal to or less than the second threshold value (provided that the second threshold value> the first threshold value), the corresponding room is supported. The ventilation device according to claim 1, wherein the opening area of the humidified air supply air passage communicating with the indoor air supply air passage for each room and the opening area of the non-humidified air supply air passage are maintained. The control unit
The humidified air supply air communicating with the indoor air supply air passage for each room according to the magnitude of the difference between the humidity of the room and the target humidity detected by the indoor humidity sensor for each room. A claim comprising controlling the corresponding room-specific humidified side opening adjusting section and the room-specific non-humidifying side opening adjusting section so as to change the ratio between the opening area of the path and the opening area of the non-humidified air supply air passage. Item 1. Ventilation device according to item 1. The control unit
The target humidity of the room is set for each room, and the corresponding indoor air supply air passage for each room is based on the target humidity and the humidity of the room detected by the corresponding indoor humidity sensor for each room. To control the corresponding room-specific humidification side opening adjustment unit and the room-specific non-humidification side opening adjustment unit so as to adjust the opening area of the humidified air supply air passage and the non-humidification air supply air passage that communicate with each other. The ventilation device according to claim 1 . The room-specific humidifying side opening adjustment unit and the room-specific non-humidifying side opening adjustment unit provided corresponding to each room-specific indoor air supply air passage communicate with the room-specific indoor air supply air passage. It is characterized in that the opening area of the humidified air supply air passage is adjusted so that the total of the opening area of the non-humidified air supply air passage communicating with the indoor air supply air passage for each room becomes constant. The ventilation device according to any one of claims 1 to 4. The room-specific humidified side opening adjusting portion and the room-specific non-humidified side opening adjusting portion provided corresponding to the room-specific indoor air supply air passages are the opening area of the humidified air supply air passage and the non-humidified supply. The ventilation device according to claim 5, further comprising one sliding damper whose ratio to the opening area of the air passage can be adjusted. The control unit
Claims 1 to 6 are characterized in that humidification by the humidifying portion is stopped when the opening area of the humidifying air supply air passage communicating with the corresponding indoor air supply air passage for each room is zero in all the rooms. Ventilation device described in any of. Heat exchange provided in the air supply air passage on the upstream side of the humidified air supply air passage and the non-humidified air supply air passage, and exchange heat between the air passing through the air supply air passage and the air passing through the exhaust air passage. The ventilation device according to any one of claims 1 to 7, further comprising a unit.

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