JP2956468B2 - Multi-room ventilation method, multi-room ventilation device and multi-room ventilation system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-room ventilation method for ventilating multiple rooms in a house, a multi-room ventilation apparatus and a multi-room ventilation system for realizing the method.

[0002]

2. Description of the Related Art Multi-chamber ventilation, in which a plurality of rooms such as bathrooms and toilets in a house are ventilated by a single air blower, has conventionally been performed using a blower having a single exhaust structure and a plurality of air intake structures. ing. That is, the plurality of exhaust structures of such a blower are individually connected to the respective rooms of the house by ducts. In this way, if the capacity of the blower is determined so as to be optimal considering the ventilation resistance of each duct, each room will have the optimal ventilation volume, and the layout will be the same for all houses Then, such a blower can be applied to any house.

[0003] However, many houses have different configurations and layouts, and differ in the length of ducts and the number of bent portions. Therefore, the capacity of the blower is determined in advance by taking into account the ventilation resistance of the ducts. However, optimal ventilation cannot be obtained. As a ventilation technique capable of coping with the individuality of a house, for example, there is a technique disclosed in Japanese Patent Application Laid-Open No. 1-233930. In this method, the overall ventilation is set by the exhaust side of the blower, and the individual ventilation is set by each intake side.

That is, as shown in FIG. 8, a pressure sensor 103 for detecting a wind pressure is provided on an exhaust structure 102 side of a blower 101.
Is provided. The output of the pressure sensor 103 is input to the wind pressure change rate measuring means 104. The wind pressure change rate measuring means 104 is provided with a preset reference wind pressure and a pressure sensor 10.
The change rate of the wind pressure is measured from the output of No. 3 and output to the exhaust air volume determining means 105. The exhaust air volume determining means 105 determines the amount of exhaust air from the rate of change of the wind pressure, and controls the blower 101 by the blower driving means 106. In addition, each intake structure 1
An electric damper 108 is provided on the 07 side, and the electric damper 108 is controlled by individual control means 109 having the same configuration as that of the exhaust structure 102 side.

[0005] Thereby, the blower 101 is controlled to obtain a preset airflow of the total value of the optimal ventilation of each room, and each electric damper 108 is operated to obtain the preset optimal ventilation of each room. The degree of opening is controlled, and adjustment of the set value can respond to the individuality of the house.

However, the multi-ventilation method using the multi-ventilation apparatus obtains the optimal ventilation volume of each room from the total optimal ventilation volume of a plurality of rooms. For example, even when bathroom ventilation is not required, ventilation is performed at the set ventilation rate, and inconvenience that ventilation at the same air volume is performed both during winter bathing and during summer bathing is there.

Further, the multi-room ventilator itself includes a control means for controlling the total amount of ventilation in a plurality of rooms to a set value and a plurality of control means 109 for controlling the individual ventilation in each room to a set value. In addition to the necessity, there is a problem that the configuration is complicated and the cost is high.
Since there are a number of 9s, setting of the reference value is complicated and troublesome, and it is difficult to cope with a failure.

[0008]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a simple method capable of performing flexible and optimal ventilation for multiple rooms by using a single blower having a plurality of intake structures. Obtain a multi-room ventilator with a simple and easy-to-handle configuration that can achieve optimal ventilation of multi-rooms, reduce equipment costs, make it easy to switch the ventilation air volume, according to the size and season of the house It is to be able to regulate the ventilation. Also, in recent years, attempts have been made to use a ventilation system installed in a sanitary zone in an apartment house or the like where airtightness is progressing.For example, if ventilation of a bathroom, a toilet, and a toilet is performed individually, The present invention also has a problem that the amount of ventilation in the entire house is excessively or insufficiently insufficient to perform appropriate ventilation, and a problem that it is difficult to realize individual comfortable ventilation.

[0009]

According to a first aspect of the present invention, there is provided an air blower having a plurality of intake structures, and each of the air intake structures is provided in an individual room capable of supplying air in a parallel relationship. And the intake passage are individually communicated with each other, and for one of them, the blower is controlled so as to keep the air flow to the intake structure constant, and the air flow to the other intake structures is controlled. Means for individually adjusting the air volume for each intake structure by adjusting the ventilation area.

According to another aspect of the present invention, an exhaust structure for exhaust, a plurality of intake structures for intake, and a ventilation flow from the intake structure to the exhaust structure are provided. For each air intake structure of the air blower having a single air blower, an air volume adjusting member for adjusting the respective ventilation area is provided, the air volume for one of the air intake structures is detected, and the detected air volume is a preset target. Means for feedback-controlling the blower so as to match the air volume is employed.

According to another aspect of the present invention, there is provided an exhaust structure for exhaust, a plurality of intake structures for intake, and a ventilation flow from the intake structure to the exhaust structure. For each intake structure of a blower provided with a single blower, an air volume adjusting member for adjusting the ventilation area and an electric damper for opening and closing to maintain a small ventilation area even in the closed position are provided. Means for detecting the air volume for each fan and performing feedback control of the blower so that the detected air volume matches a preset target air volume.

In order to solve the above-mentioned problems, the invention according to claim 4 comprises an exhaust structure for exhaust, a plurality of intake structures for intake, and a single unit for forming a ventilation flow from the intake structure side to the exhaust structure side. For each of the above-mentioned intake structures of a blower having one blower, an air flow rate adjusting member for adjusting the respective ventilation areas and an electric damper for opening and closing to maintain a small ventilation area even in the closed position are provided. The air flow is detected for each of the two air blowers, and the blower is feedback-controlled so that the detected air flow matches a preset target air flow, and the other two air intake structures are individually connected to the bathroom and the lavatory through the air intake passages. Means for opening each of the electric dampers of the two intake structures when one is closed and the other is open is adopted.

In order to solve the above-mentioned problems, the invention according to claim 5 is directed to an exhaust structure for exhaust, a plurality of intake structures for intake, and a single unit for forming a ventilation flow from the intake structure side to the exhaust structure side. For each intake structure of a blower having one blower, an air flow rate adjusting member that adjusts each ventilation area and an electric damper that opens and closes and maintains a small ventilation area even in a closed position are provided. The air flow to the upper part of the bathroom and the air supply to the other part of the bathroom can be supplied through the intake passages while controlling the blower so that the detected air volume matches the preset target air volume. And means for providing two air supply ports, upper and lower, which can be opened and closed by an open / close shutter between the bathroom and the following chamber.

According to a sixth aspect of the present invention, there is provided a clothes drying machine having a single blower having a bathroom as a drying room, wherein the clothes in the bathroom according to the fifth aspect of the present invention are provided. Means for connecting one of the intake passages to the bathroom through the exhaust connection port of the dryer is employed.

[0015]

According to the first aspect of the present invention, in one intake passage, a constant amount of air is taken in, and in an intake passage communicating with other individual rooms, the amount of air is adjusted according to each individually adjusted ventilation area. Will be taken.
Therefore, by controlling the air volume at one location, the ventilation volume of the other individual rooms can be controlled, and the distribution of the ventilation volume of the individual rooms can be adjusted.

According to the second aspect of the present invention, the air volume of one of the air intake structures is maintained constant, so that the other air intake structures have a constant air volume according to the respective ventilation areas individually adjusted by the air volume adjusting member. The air volume is controlled, and the total ventilation can be adjusted.

According to the third aspect of the present invention, the air volume of one of the air intake structures is maintained constant, so that the other air intake structures have their respective ventilation areas individually adjusted by the air volume adjusting member and the electric damper. Therefore, the air flow passing through the intake structure can be switched between large and small by opening and closing the electric damper.

According to the fourth aspect of the present invention, the air flow rate of one of the air intake structures is kept constant, so that each of the air intake structures communicating with the bathroom and the lavatory is individually adjusted by the air flow amount adjusting member and the electric damper. In addition to controlling the air flow according to the respective ventilation areas, the distribution of the ventilation volume in the bathroom and the toilet can be changed.

According to the fifth aspect of the present invention, the air volume of one of the air intake structures is maintained constant, so that each of the air intake structures communicating with the bathroom and the succeeding chamber is also individually provided by the air volume adjusting member and the electric damper. In addition to being controlled to the air volume according to each ventilation area adjusted to, the distribution of ventilation volume of the bathroom and the following room can be changed, and the air supply accompanying ventilation to the bathroom is adjusted to the upper side of the bathroom. It can be performed from any of the lower side.

In the means according to the sixth aspect, together with the action according to the fifth aspect, it becomes possible to share the structure with the intake passage of the bathroom without separately providing a structure for exhausting the clothes dryer.

[0021]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 uses the blower 4 shown in FIG. 1 having a plurality of intake structures 1, 2, 3, and the respective intake structures 1, 2, 3,
When communicating individually with each room capable of supplying air in a parallel relationship, one of them is communicated with a room such as a toilet where the ventilation volume may be constant, and one of the The blower 4 is controlled so as to keep the air flow to the intake structure 1 constant, the air flow to the other intake structures 2 and 3 is controlled, and the air flow to each of the other intake structures 2 and 3 is individually adjusted. FIG. 2 shows a multi-room ventilation system for implementing a multi-room ventilation method by adjusting the ventilation area.

In the multi-chamber ventilation method adopted by this system, a constant air volume is taken in the intake passage communicating with a room having a constant ventilation volume, and the intake passage communicating with other individual rooms is individually adjusted. Thus, the intake air having the air volume corresponding to the respective ventilation areas is performed. Therefore, by controlling the air volume at one location, the ventilation volume of the other individual rooms can also be controlled, and the distribution of the ventilation volume of the individual rooms can be adjusted, so that the ventilation of the multi-rooms with high flexibility can be easily performed. Will be.

In FIG. 2 showing a multi-room ventilation system, the house 5 shown as an example of application of the system is highly airtight, and has a configuration in which the whole house 5 is ventilated by ventilation in a sanitary zone. That is, in the figure, reference numeral 6 denotes a living room facing the outside, for example. The living room 6 is provided with an outside air supply port 8 provided with an air supply device 7 capable of adjusting the amount of supply air. The amount is adjusted by the air supply from the outside air supply port 8.

In the living room 6, for example, a corridor (not shown)
For example, a vent 9 communicating with another space in the house 5 is formed. The vent 9 functions to exhaust air to the living room 6 and to supply air to other locations. A space such as a corridor communicating with the vent 9 is an air supply path, and faces sanitary zones such as a toilet 10, a washroom 11, and a bathroom 12. The toilet 10 is provided with a toilet air inlet 13 at an entrance door or the like, which communicates with an air supply path. Similarly, the lavatory 11 is also provided with a lavatory air supply port 14 at the upper part thereof, which communicates with the air supply path. Bathroom 12
As in the case of the layout of many houses 5, the opening and closing shutters 16 are provided at the upper part on the ceiling side and the lower part on the floor side with respect to the partition 15 with the toilet 11 as in the layout of many houses 5, respectively. Upper and lower bathroom inlets 18, 1 that can be opened and closed with 17
9 are provided.

On the ceiling of the toilet 10 and the lavatory 11, an intake terminal component 21 such as an intake grill provided with a filter 20 inside.
Are attached. In addition, a clothes dryer 24 including a heating coil 22 and a blower 23 is incorporated into the ceiling of the bathroom 12 so that the bathroom 12 can be made into a dry atmosphere and used for heating the clothes drying room and the bathroom 12. The clothes dryer 24 is a dryer that sucks in air from the bathroom 12 and blows it out as hot air, and has an exhaust connection port 25 for exhaust air that communicates with the bathroom 12 adjacent to the suction port. The exhaust connection port 25 is normally connected to an exhaust device such as a ventilation fan through a duct and communicated with the outside. In this embodiment, since the exhaust connection port 25 is commonly used as a suction port for ventilation of the bathroom 12, the exhaust connection port 25 is provided. Construction costs can be kept low.

As shown in FIG. 1, the ventilation of the house 5 having the above-described structure includes one exhaust structure 26 for exhaust and a plurality (three in this embodiment) of intake structures 1 and 2 for intake. ,
3 and a blower 4 having a blower 27 for forming a ventilation flow from the intake structure 1, 2, 3 side to the exhaust structure 26 side. Each of the air intake structures 1, 2, 3 of the blower 4 has the same structure, and the air volume adjusting plates 28, 29, 30 as air volume adjusting members for adjusting the ventilation areas of each of them have a stepwise opening from full open to closed. It is provided so that can be set. In addition, the air volume adjusting plates 28, 29,
On the downstream side of 30, electric dampers 31, 32, 33 that open and close the section and maintain a small ventilation area even in the closed position are provided.

In particular, with respect to the intake structure 1, the pressure in the intake structure 1 at the upstream and downstream sides of the air volume adjusting plate 28 is detected by a pressure pipe 34 and is acted on a diaphragm 35, so that the pressure at the downstream side is increased. Differential pressure sensor 36 for detecting a pressure difference on the upstream side
Is provided. The relationship between the air volume passing through the intake structure 1 and the pressure difference between the upstream side and the downstream side of the air volume adjusting plate 28 is shown in FIG.
As shown in FIG. 7, the pressure becomes an exponential function, and a differential pressure corresponding to the passing air volume appears. Therefore, the differential pressure sensor 36 is a means for detecting the amount of air flowing through the intake structure 1.

The output of the differential pressure sensor 36 is input to a control device that controls the blower 27. The control device is shown in FIG. 2 and FIG.
As shown in FIG. 7, a comparing means 38 for comparing the output of the differential pressure sensor 36 with the reference signal set by the setting means 37, and a blower driving means 39 such as an inverter for receiving the output of the comparing means 38 and directly controlling the blower 27 It consists of. The control function of this control device is feedback control, which drives and controls the motor of the blower 27 to be controlled so that there is no difference between the output of the differential pressure sensor 36 and the reference signal. That is, the blower 27 is controlled such that the air volume passing through the one intake structure 1 of the blower 4 is constant. The adjusting means 3 connected to the setting means 37 for outputting the reference signal
7a can be changed to an arbitrary value.

Among the electric dampers 31, 32, 33 provided in each of the intake structures 1, 2, 3, those provided in the intake structures 2, 3 other than the intake structure 1 in which the air volume is maintained constant. Both are controlled by the damper control device 40 as shown in FIG. That is, these electric dampers 32, 3
Each of the opening / closing means 41 and 42 for opening / closing 3 is connected to a damper control device 40 via a switching means 43. The opening and closing shutters 16 and 17 provided in the upper and lower bathroom air supply ports 18 and 19 of the bathroom 12 are also configured to be opened and closed by the damper control device 40. When one of the electric dampers 32, 33 is in the open state by the switching means 43, the damper control device 40 controls the other electric dampers 33, 33.
32 and one of the open / close shutters 1
6 and 17 are opened, and the other opening and closing shutters 17 and 16 are closed. The electric damper 31 of the intake structure 1 that maintains the air volume at a constant level is convenient and may not necessarily be provided depending on the application, but is opened and closed by its own opening and closing means.

The exhaust structure 26 of the multi-chamber ventilator having the above configuration is connected to the outside by an exhaust duct. Among the three parallel-structured intake structures 1, 2, 3, the one in which the air volume is maintained constant is suitable for ventilation of the toilet 10, and is connected to the intake terminal part 21 of the toilet 10 through the intake passage 44 by a duct. The other is connected to the intake terminal part 21 of the lavatory 11 by an intake passage 45 by a duct, and the other is connected to the exhaust connection port 25 of the clothes dryer 24 of the bathroom 12 by an intake passage 46 by a duct. Bathroom air inlets 1 above and below bathroom 12
The opening / closing shutters 16 and 17 of 8 and 19 open the lower bathroom air inlet 19 and close the upper bathroom air inlet 18 when the electric damper 32 of the intake structure 2 communicating with the bathroom 12 is opened. When the electric damper 32 is closed, the lower bathroom supply port 19 is closed.
Is closed and connected to the damper control device 40 via the switching means 43 so as to open the upper part. This damper control device 4
0 is remotely controlled by a remote controller. Also, the operation of the clothes dryer 24 can be operated by the same remote controller as the damper control device 40. As a result, a multi-room ventilation system is configured in which the ventilation of the entire house 5 can be performed by one blower 4 of the sanitary zone.

In this multi-chamber ventilation system, each air intake structure 1, 29, 30 of the multi-chamber ventilator, which is the core of the multi-chamber ventilation system, basically has its own air volume adjusting plates 28, 29, 30 and electric dampers 31, 32, Although the air flows with the air flow according to the ventilation area determined by 33, the blower 27 of the blower 4 is feedback-controlled by the control device so that the air flow of one of the intake structures 1 becomes constant. Structure 2, 3
Each of the air volume adjusting plates 29, 30 and the electric damper 3
The air flows at an air volume according to the ventilation area determined by 2 and 33.

In the toilet 10, there is almost no need to change the air volume for ventilation, and in most cases, ventilation at an air volume of about 20 cubic meters per hour is set. Also in the case of this embodiment, the flow rate of the air passing through one intake structure 1 connected to the toilet 10 is appropriately set to 20 cubic meters per hour by the flow rate adjusting plate 28. That is, if the pressure difference between the upstream side and the downstream side of the air volume adjusting plate 28 of the intake structure 1 is made constant, the air volume passing therethrough will be constant, so that the setting means 37 corresponds to the air volume of 20 cubic meters per hour. Set the output reference signal. The blower 27 is controlled so that the output of the differential pressure sensor 36 matches the reference signal, and the toilet 10
It will be ventilated with an air volume of 0 cubic meters.

When the air volume of the intake structure 1 connected to the toilet 10 is controlled to be constant as described above, the bathroom 12 and the toilet 11 are controlled.
Are ventilated by the air volume adjusting plates 29, 30 and the electric dampers 32, 33, respectively, in accordance with the ventilation area. The electric damper 32 of the intake structure 2 connected to the bathroom 12 is opened, and the air volume adjusting plate 29 is operated to set an air volume of, for example, 50 cubic meters per hour. The electric damper 32 retains a small ventilation area even in the closed state, and if the air flow due to the ventilation area in the closed state of the electric damper 32 is, for example, 20 cubic meters per hour, the air flow flowing through the intake structure 2 is 50 per hour. It will be controlled to be cubic meters or 20 cubic meters per hour. In this embodiment, the same setting is applied to the intake structure 3 connected to the washroom 11.

Accordingly, the ventilation of the toilet 10 is controlled by the blower 2
Under the control of 7, the ventilation is always performed at 20 cubic meters per hour, and the ventilation of the bathroom 12 and the lavatory 11 is performed by the intake of 50 cubic meters per hour or 20 cubic meters per hour according to the opening and closing of the electric dampers 32, 33, respectively. By controlling the air volume for one intake structure 1,
The air volume for the other intake structures 2 and 3 is also controlled. That is, in this multi-chamber ventilator, a plurality of intake structures 1,
The ventilation volume of each room according to 2 and 3 always becomes a constant value.

Therefore, when a multi-chamber ventilation system as shown in FIG. 2 is configured, air supply corresponding to the exhaust air is performed from the outside air supply port 8 through the air supply device 7, and energy saving and comfort are maintained. Optimal ventilation of the entire house 5 is made possible by ventilation in the sanitary zone. Since the system itself requires only one control including the blower 4, the system is simple, and the setting of the air volume is simple and easy to handle. Since the ventilation air volume can be switched easily, the ventilation volume can be adjusted according to the size and season of the house.

The house 5 shown in FIG.
Assuming a general apartment building with a square meter and an average ceiling height of 2.4 meters, the volume of the house 5 is 173 cubic meters. In addition, the ventilation frequency that is always required in the house 5 is generally 0.5 times / hour. From these, the above house 5
The required ventilation is approximately 90 cubic meters per hour. In this multi-room ventilation system, since the ventilation volume of the multi-room can be controlled to be constant, for example, if the total ventilation volume of the toilet 10, the bathroom 12, and the lavatory 11 is always kept at 90 cubic meters per hour, the required number of ventilations becomes zero. .5 times / hour can be secured. Ventilation exceeding this ventilation rate impairs comfort such as loss of air conditioning energy and chills in the outside air due to air supply in winter.

When the moisture in the bathroom 12 is discharged or when the clothes dryer 24 is operated, the electric damper 32 on the side of the intake passage 46 leading to the bathroom 12 is controlled by the damper control device 40.
Is opened, the electric damper 33 on the side of the intake passage 45 leading to the toilet 11 is closed, and the bathroom air supply port 1 at the bottom of the bathroom 12 is closed.
9 is opened. Therefore, the toilet 10 is ventilated at a constant air volume of 20 cubic meters per hour, the bathroom 12 is ventilated at an air volume of 50 cubic meters per hour, and the lavatory 11 is ventilated at an air volume of 20 cubic meters per hour. Since the supply of air to the bathroom 12 is performed from the lower bathroom air supply port 19 through the washroom 11, air flows through the entire bathroom 12, and moisture in the bathroom 12 is removed smoothly. When the bathroom 12 is being ventilated at an air volume of 50 cubic meters per hour, the toilet 11
Although ventilation is performed at an air volume of 0 cubic meters, since the lavatory 11 and the bathroom 12 are in communication, the ventilation volume of the lavatory 11 is substantially 70 cubic meters per hour.

When it is desired to reduce the ventilation of the bathroom 12 at the time of bathing or the like, the damper control device 40 closes the electric damper 32 on the side of the intake passage 46 leading to the bathroom 12. At the same time, the electric damper 33 on the intake passage 45 side leading to the lavatory 11 is opened, and the bathroom air supply port 1 above the bathroom 12 is opened.
8, the opening / closing shutter 16 is opened, and the lower bathroom inlet 1 is opened.
9 is closed. Accordingly, the toilet 10 is also ventilated at a constant flow rate of 20 cubic meters per hour, the bathroom 12 is ventilated at a flow rate of 20 cubic meters per hour, and the toilet 11 is ventilated at a flow rate of 50 cubic meters per hour. Since the air supply to the bathroom 12 is performed from the upper bathroom air supply port 18 through the lavatory 11, almost no air flows below the bathroom 12 such as in a washing room, and the bather comfortably takes a bath because there is no air flow on the skin. can do.

The air inlets 14 and 1 of the toilet 11 and the bathroom 12
Positions 8 and 19 are also important for improving ventilation efficiency. FIG. 6 shows the change in the position of the bathroom air supply port of the bathroom 12 and the time when the condensation in the bathroom 12 is eliminated when the bathroom 12 is ventilated at 50 cubic meters per hour after bathing. It can be seen that the elimination time is shorter and the ventilation efficiency is better if you ventilate with care. Also, in drying the clothes, the drying time is shorter when the air supply flow is applied from below the clothes. However, on the other hand, when the bathroom 12 is heated by the clothes dryer 24, or when bathing in winter, air supply from below reduces the heating effect or causes chills. That is, when the ventilation operation is not performed, the upper side of the air supply port for the bathroom 12 is better. In this embodiment, the upper and lower bathroom air inlets 1
By providing the shutters 8 and 19 and selectively opening and closing the shutters 16 and 17, both advantages described above are obtained. In addition, if the opening and closing shutters 16 and 17 are manually opened and closed, air can be supplied according to each user's request.

FIG. 7 shows a change in time during which dew condensation due to high humidity in the lavatory 11 is eliminated by a combination of the position of the air supply port of the bathroom 12 and the position of the air supply port of the lavatory 11 that follows. It is. That is, regardless of whether the position of the air supply port of the bathroom 12 is up or down, the upper side of the toilet air supply port 14 is better for ventilation of the washroom 11.

That is, the ventilation system of this embodiment has a feature that it can perform flexible optimal ventilation for multiple rooms using a single blower 4, and has a simple configuration and is easy to handle. Further, even if the whole house is operated by the blower 4 installed in the sanitary zone, the ventilation amount of the whole house does not become excessive or insufficient, and appropriate ventilation can be performed, and individual comfortable ventilation is also realized. Furthermore, since a single differential pressure sensor 36 is sufficient, it is easy to deal with a failure due to a sensor failure or the like, and malfunctions due to sensors are less likely to occur than those having a large number of sensors, and the function is stabilized. Note that the toilet 10, the washroom 11, and the bathroom 12 are all examples of multiple rooms. Further, the number of the intake structures 1, 2, 3 may be any number as long as it is plural in the embodiment of the invention.

[0042]

As is apparent from the above description of the embodiment, according to the first aspect of the present invention, the intake passage communicating with one of the chambers has a constant airflow and communicates with the other individual chambers. In the intake passage, air is taken in at a flow rate corresponding to the individually adjusted ventilation areas. Therefore, by controlling the air volume at one location, the ventilation volume of the other individual rooms can also be controlled, and flexible optimal ventilation can be easily performed.

According to the second aspect of the present invention, one air volume of the intake structure is kept constant, so that the other air intake structure has a constant air volume corresponding to each ventilation area individually adjusted by the air volume adjusting member. Since the overall ventilation can be adjusted, the ventilation can be adjusted according to the size and season of the house, and the configuration is simple and easy to handle.

According to the third aspect of the present invention, one air volume of the intake structure is maintained constant, so that the other air intake structures have the respective ventilation areas individually adjusted by the air volume adjusting member and the electric damper. Since the air flow is controlled to a corresponding value, the ventilation air volume can be easily switched by opening and closing the electric damper in addition to the effect of the second aspect of the invention.

According to the fourth aspect of the present invention, the air volume of one of the air intake structures is kept constant, whereby each air intake structure communicating with the bathroom and the toilet is individually adjusted by the air volume adjusting member and the electric damper. In addition to being controlled to the air volume according to each ventilation area, the distribution of ventilation volume in the bathroom and toilet can be changed, so the ventilation volume can be adjusted according to the size and season of the house, and the configuration is also In addition to being simple and easy to handle, the ventilation of the entire house can be properly performed without excessive or insufficient ventilation.

According to the fifth aspect of the present invention, the air volume of one of the air intake structures is maintained constant, so that each of the air intake structures communicating with the bathroom and the succeeding chambers is also separately operated by the air volume adjusting member and the electric damper. In addition to controlling the air flow according to each adjusted ventilation area, the distribution of ventilation volume in the bathroom and the following room can be changed, and the air supply accompanying the ventilation to the bathroom is supplied to the upper and lower sides of the bathroom. The ventilation can be adjusted according to the size and season of the house, the structure is simple and easy to handle, and the ventilation of the entire house is Ventilation can be performed properly without causing a shortage, and comfort of the ventilation of the bathroom is improved.

According to the invention of claim 6, in addition to the effect of the invention of claim 5, the construction for exhausting the clothes dryer can be shared with the intake passage of the bathroom without separately providing, and the facility construction cost is reduced. .

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a multi-room ventilator as an embodiment of the present invention.

FIG. 2 is a configuration diagram showing a configuration of a multi-room ventilation system as one embodiment of the present invention.

FIG. 3 is an explanatory diagram showing a principle of controlling a constant air volume in the embodiment of the present invention.

FIG. 4 is a circuit configuration diagram of a control device according to the embodiment of the present invention.

FIG. 5 is a block diagram illustrating control of an electric damper according to the embodiment of the present invention.

FIG. 6 is an explanatory diagram showing a ventilation effect in a bathroom according to the embodiment of the present invention.

FIG. 7 is an explanatory diagram showing ventilation effects in a bathroom and a washroom according to the embodiment of the present invention.

FIG. 8 is a configuration diagram showing a conventional multi-room ventilation device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Intake structure 2 Intake structure 3 Intake structure 4 Blower 5 House 10 Toilet 11 Washroom 12 Bathroom 14 Washroom air supply opening 16 Opening / closing shutter 17 Opening / closing shutter 18 Bathroom air supply opening 19 Bathroom air supply opening 23 Blower 24 Clothes dryer 25 Exhaust connection port 26 Exhaust structure 27 Blower 28 Air volume adjusting plate 29 Air volume adjusting plate 30 Air volume adjusting plate 31 Electric damper 32 Electric damper 33 Electric damper 36 Differential pressure sensor 37 Setting means 38 Comparison means 39 Blower driving means 40 Damper control device 43 Switching means 44 Intake passage 45 Intake passage 46 Intake passage

────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shin Shinozuka 1-3-3 Komabacho, Nakatsugawa City, Gifu Prefecture Mitsubishi Electric Corporation Nakatsugawa Works (58) Field surveyed (Int. Cl. ⁶ , DB name) F24F 7 / 06

Claims (6)

(57) [Claims] 1. A ventilation method for ventilating multiple rooms using a single air blower having a plurality of air intake structures, wherein each air intake structure of the air blower is connected to an individual room capable of supplying air in a parallel relationship. The passages are individually communicated with each other, and for one of them, the blower is controlled so that the airflow to the intake structure is constant, and the airflow to the other intake structures is controlled. A multi-chamber ventilation method, wherein the air volume for each intake structure is individually adjusted by adjusting its ventilation area. 2. A blower comprising an exhaust structure for exhaust, a plurality of intake structures for intake, and a single blower for forming a ventilation flow from the intake structure side to the exhaust structure side. For each of the intake structures, an air volume adjusting member for adjusting the ventilation area is provided, and for one of the intake structures, means for detecting an air volume flowing through the intake structure is provided. A multi-room ventilator, wherein the blower is controlled by a control device so as to match a preset target air volume. 3. A blower comprising an exhaust structure for exhaust, a plurality of intake structures for intake, and a single blower for forming a ventilation flow from the intake structure side to the exhaust structure side. For each of the intake structures, an air flow rate adjusting member for adjusting the ventilation area is provided, and at the downstream side of the air flow rate adjusting member, an electric damper that opens and closes and maintains a small ventilation area even in the closed position is provided. A multi-ventilation apparatus characterized in that a means for detecting the amount of air flowing through the intake structure is provided, and the blower is controlled such that the detected amount of air matches a preset target amount of air. 4. A blower comprising an exhaust structure for exhaust, a plurality of intake structures for intake, and a single blower for forming a ventilation flow from the intake structure side to the exhaust structure side. For each of the intake structures, an air flow adjusting member for adjusting the ventilation area is provided, and on the downstream side of the air flow adjusting member, an electric damper that opens and closes and maintains a small ventilation area even in the closed position is provided. For one, a means for detecting the amount of air flowing through the intake structure is provided, and the blower is controlled so that the detected amount of air matches a preset target amount of air. A multi-chamber ventilation system having a configuration in which damper control means for individually communicating the bathroom and the lavatory through the intake passage and opening each of the electric dampers of the two intake structures when one is closed is opened when the other is closed. 5. A blower comprising an exhaust structure for exhaust, a plurality of intake structures for intake, and a single blower for forming a ventilation flow from the intake structure side to the exhaust structure side. For each of the intake structures, an air flow adjusting member for adjusting the ventilation area is provided, and on the downstream side of the air flow adjusting member, an electric damper that opens and closes and maintains a small ventilation area even in the closed position is provided. For one, a means for detecting the amount of air flowing through the intake structure is provided, and the blower is controlled such that the detected amount of air matches a preset target amount of air. The intake passage communicates with the upper part of the bathroom and a chamber capable of supplying air following the bathroom, and the damper control means for opening each of the electric dampers of the two intake structures when one is closed and the other is opened. Bathroom and this A multi-chamber ventilation system having two upper and lower air supply ports that can be opened and closed by an opening and closing shutter between the above-described chambers. 6. The multi-chamber ventilation system according to claim 5, wherein the bathroom is provided with a clothes dryer having a single blower that uses the bathroom as a drying room, and an exhaust connection port of the clothes dryer is provided. Multi-chamber ventilation system in which one of the intake passages communicates with the bathroom via