JP3722907B2 - Ventilation system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ventilation system for ventilating multiple rooms in an airtight house.
[0002]
[Prior art]
In a normal house, there is a certain gap in the building itself, so it is only necessary to consider ventilation mainly for the house, and it is very common in rooms such as kitchens, toilets, and bathrooms where air is easily polluted. Each can be handled by installing an exhaust ventilation fan. Of course, there is a ventilation device or a ventilation control device that forms a comfortable ventilation environment as a whole of the supply and exhaust air in consideration of air supply as disclosed in JP-A-60-62540 for a specific room.
[0003]
However, due to the improvement of comfort and the pursuit of energy saving, in the highly airtight and highly insulated houses that have been rapidly developed in recent years, a simple ventilation centered on the exhaust as described above and a comfortable ventilation environment for ventilation of individual rooms Cannot be obtained. In such a house, several attempts have been made to create a comfortable ventilation environment in which the whole house is performed by a ventilator installed in a sanitary zone or the like. For example, Japanese Utility Model Laid-Open No. 3-107638 discloses a ventilation system that exhausts air in the entire house from a bathroom or toilet and supplies air from the living room to the house. In other words, the entire house is ventilated by creating an air flow from a zone that is less likely to get dirty to a zone that is more likely to get dirty.
[0004]
In a house to which this ventilation system is applied, a ventilation path is secured for each room. Then, according to the air cleanliness of each zone, an air supply exhaust fan is installed in a room in a zone with a high cleanness, and an exhaust ventilation fan is installed in a room in a zone with a low cleanness. As a result, since the exhaust port and the air supply port are limited to only necessary portions, the airtightness of the house does not deteriorate so much.
[0005]
In such a highly airtight house that cannot rely on natural ventilation, the formation of a comfortable ventilation environment depends on the ventilation system, so that the ventilation system always functions. Therefore, in such a ventilation system, it is easy to put a burden on the user in various aspects. In other words, it is an important issue to reduce the burden on the user because the maintenance costs increase and the chills due to steady noise and ventilation are memorized.
[0006]
For example, if the minimum necessary ventilation air volume is always maintained by using a control method, the maintenance cost and noise are reduced. Ventilators that achieve this are disclosed in Japanese Patent Application Laid-Open Nos. 7-151363 and 6-066438. As shown in FIG. 12, a blower 102 having a plurality of air intake structures 101 is used, and the air intake structures 101 are individually communicated with each other through a duct capable of supplying air in a parallel relationship. For one, the blower of the blower 102 is controlled so that the air volume to the intake structure 101 is constant.
[0007]
This type of ventilator is capable of switching the air volume in combination with a damper, and is effective for comfortably ventilating a large number of rooms in a highly airtight house. However, extensive duct work is indispensable to construct a ventilation system for the whole house with a ventilator, and the arrangement of ducts is not a problem in apartment buildings and buildings, but it is a big problem in detached houses. There is a problem that it is difficult to adapt. There is also a simple ventilation device devised to solve such problems.
[0008]
This is a ventilator configured to be attached to a sleeve that penetrates the wall structure of a building, and an orifice is provided in a ventilation path in the ventilator. A pressure sensor for detecting the pressure difference between the downstream side and the upstream side of the orifice is provided, and the difference between the pressure sensor output signal and the setting signal is eliminated by comparing the output signal of the pressure sensor with the setting signal from the setting means. Such control is performed.
[0009]
[Problems to be solved by the invention]
When configuring a ventilation system that ventilates multiple rooms in the entire house using a ventilator that can ventilate with the target ventilation airflow as described above, the ventilator whose airflow is monitored via a pressure sensor is used as the reference ventilator. If the other ventilators in other rooms are driven by the same notch power supply as this reference ventilator, the other ventilators are operated with the same ventilation airflow as the reference ventilator, and the control system is simplified. It is convenient. However, there is no problem if the airflow characteristics of the reference ventilator and other ventilators are the same, but if the airflow characteristics of the reference ventilator and other ventilators are different, the reference ventilator and other ventilators Then, it will be operated with a different ventilation air flow, and ventilation with a constant air flow cannot be performed.
[0010]
The present invention has been made to solve the above-described conventional problems, and the subject of the present invention is an exhaust ventilation device that can be easily applied to an airtight detached house and has different airflow characteristics. It is to obtain a flexible ventilation system that can cope with it, to give the ventilation system coordination and safety with other equipment, and to make the ventilation system easy to use It is to promote improvement of workability and workability.
[0011]
[Means for Solving the Problems]
Exhaust ventilator without duct with variable exhaust air volume provided in the room in the building, standard ventilator provided in a separate room from the room, and provided with a return function in the exhaust ventilator, and the return function The amount of power input to the exhaust ventilator is controlled so that the exhaust air volume of the reference ventilator is constant, and the exhaust air volume of the exhaust ventilator is the same as that of the reference ventilator. And a control device for controlling .
[0012]
Exhaust ventilator without duct with variable exhaust air volume provided in the room in the building, standard ventilator provided in a separate room from the room, and provided with a return function in the exhaust ventilator, and the return function The ventilation drive command signal is generated so that the exhaust air volume of the reference ventilator becomes the set air volume, and the ventilation drive command signal is sent to the reference ventilator by the power supply rate control circuit of the channel corresponding to the reference ventilator. The exhaust air volume is controlled so that the exhaust air volume is constant, and the exhaust air volume of the exhaust ventilator becomes the same exhaust air volume as the reference ventilator based on the ventilation drive command signal by the energization rate control circuit of the other individual channels And a control device that controls the amount of electric power input to the exhaust ventilation device .
[0013]
Exhaust ventilator without duct with variable exhaust air volume provided in the room in the building, standard ventilator provided in a separate room from the room, and provided with a return function in the exhaust ventilator, and the return function The control notch of the power supply is controlled to supply power so that the exhaust air volume of the reference ventilator becomes constant, and the notch of the power supply is controlled by the notch, and the same notch as the reference ventilator in comprises a powering the exhaust air volume and ventilator exhaust different ing of amount of exhaust air is standard ventilator, and a resistance element for changing the voltage of the power supply so that the amount of exhaust air is the same exhaust air volume to the reference ventilator.
[0014]
In addition, at least one of the rooms where the exhaust ventilation device is provided is a bathroom, the bathroom is provided with a drying / heating device, and the control device is provided for the exhaust provided in the bathroom during the heating operation of the drying / heating device. Control the ventilator to stop operating.
[0015]
Further, at least one of the rooms provided with the exhaust ventilation device is a bathroom, and the bathroom is provided with a drying / heating device that is powered from a commercial power supply terminal and operates by a built-in relay to dry or heat the bathroom. The control device includes a relay that outputs an interlocking output to the relay as a contact output .
[0016]
Furthermore, the controller having a time setting means capable of setting the operation time of Drying and heating apparatus as several reference time in order to remotely control, and the standard instruction switch for instructing the set reference time as a standard, a reference includes a long instruction switch for instructing a longer time than the time, the remote control having a short instruction switch for instructing shorter than the reference time period.
[0017]
Furthermore, a main power switch for supplying and disconnecting power to and from the reference ventilation device, the exhaust ventilation device and the control device is provided in the control device so that the main power switch can be exposed to the room .
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1
1 to 6 show the first embodiment, in which FIG. 1 shows the configuration of a detached airtight house as a model to which the ventilation system of the first embodiment is applied. These are the block diagrams of the control apparatus of a ventilation system. As shown in FIG. 1, this model house is for explaining the ventilation system in an easy-to-understand manner, and an actual house is abstracted. That is, there are a zone composed of a toilet 2, a washroom 3 and a bathroom 4 across the corridor 1, and a zone composed of three rooms 5, 6 and 7.
[0019]
All rooms have at least one side facing the outdoors, and are connected to the corridor 1 so as to be ventilated by means of a louver or the like. The toilet 2, the washroom 3, and the bathroom 4 are rooms in which air is easily contaminated in a residence, and these are collectively referred to as a dirty zone. In addition, the living rooms 5, 6, and 7 are rooms in which air is not so dirty, and these are collectively referred to as a clean zone.
[0020]
Each of the rooms 5, 6 and 7 in the clean zone is provided with an air supply ventilation device 8 for taking in outside air individually, and can be operated and stopped by an individual switch 9. Each of these air supply ventilators 8 is constituted by a pipe ventilation fan that can be easily attached by being inserted into a sleeve that penetrates the wall, and preferably has no shutter that can ventilate even when stopped. On the other hand, the toilet 2, the washroom 3 and the bathroom 4 in the dirty zone are provided with exhaust ventilation devices 10 for exhausting indoor air individually to the outdoors. Each of these exhaust ventilators 10 is also configured by a pipe ventilator that can be easily attached by being inserted into a sleeve that penetrates the wall.
[0021]
That is, all the rooms of this house are configured to be able to ventilate by supplying and exhausting air, respectively, and a constant amount of ventilation is always secured in the house. The dirty zone toilet 2, washroom 3 and bathroom 4 are set so as to forcibly exhaust, and the exhaust ventilators 10 provided for this purpose are of variable air volume.
[0022]
In the bathroom 4, a drying / heating device 13 including a circulation fan 11 and a heater 12 is installed so as to be able to operate in conjunction with the exhaust ventilation device 10. The operation of each exhaust ventilation device 10 is controlled by a control device 14 provided at a place in a building that is easy to operate, such as the ceiling of the washroom 3, for example. The control device 14 is remotely operated by a ventilation remote controller 15 and a drying / heating remote controller 16. The ventilation remote controller 15 is for operating a ventilation system by exhaust, and the drying / heating remote controller 16 is for operating a bathroom drying / heating device 13. The control device 14 has a built-in main power switch 17 for the ventilation system. When the main power switch 17 is opened and closed, power is supplied to the ventilation system and power is cut off. Thereby, it becomes unnecessary to provide the main power switch of the ventilation system separately from the control device 14, and the simplification of the configuration of the ventilation system and the improvement of workability can be achieved.
[0023]
A specific one of the exhaust ventilators 10 (which is provided in the toilet 2 in the first embodiment) is particularly positioned as the reference ventilator 10a, and the motor 18 is connected to the air passage of the main body. In the configuration incorporating the blades 19, an orifice is provided in the air passage so as to surround the outer periphery of the motor 18. The main body is inserted and fixed in a sleeve provided on the wall, and a grill is mounted on the front surface thereof. One end of two pressure detection tubes of a differential pressure sensor 20 attached to a part of the main body faces the upstream side and the downstream side of the orifice of the exhaust ventilation device (hereinafter also referred to as a reference ventilation device) 10a. Yes. The differential pressure sensor 20 detects a pressure difference between the upstream side and the downstream side of the orifice and outputs a differential pressure signal to the control device 14. This output matches the air volume passing through the reference ventilation device 10a.
[0024]
The control device 14 includes a ventilation control circuit 21 and a drive circuit 22, and a differential pressure signal of the differential pressure sensor 20 in the reference ventilation device 10 a is fed back to the ventilation control circuit 21 through a signal line 23. The ventilation control circuit 21 compares the differential pressure signal with a preset setting signal, generates a ventilation drive command signal as a control signal that eliminates the difference between the differential pressure signal of the differential pressure sensor 20 and the setting signal, The signal is output to the drive circuit 22 via the signal line 24. The drive circuit 22 includes energization rate control circuits 25 for the number of channels (three channels in the first embodiment) corresponding to each exhaust ventilation device 10, and each energization rate control circuit 25 is provided with a ventilation drive command signal. Accordingly, the power supply 27 is independently energized and output to the ch1 power line 28, the ch2 power line 29, and the ch3 power line 30, respectively, and the corresponding exhaust ventilators 10 and 10a are operated according to the output.
[0025]
Here, only the reference ventilator 10a is operated by returning the air volume. The other exhaust ventilators 10 are supplied with notch power different from that of the reference ventilator 10a according to the respective air flow characteristics by the respective energization rate control circuits 25. However, in the configuration in which the airflow characteristics of all the exhaust ventilation devices 10 and 10a are the same, as a result, the reference ventilator 10a and the other exhaust ventilation devices 10 are supplied with the same notch power. . If the airflow characteristics of the exhaust ventilators 10 and 10a are different, assuming that the same notch power is supplied to the reference ventilator 10a and the other exhaust ventilators 10, for example, as shown in FIG. The ventilator 10 will be operated with an air volume different from that of the reference ventilator 10a, and ventilation with the set air volume will not be realized. In the ventilation system of the first embodiment, as shown in FIG. 4, the other exhaust ventilators 10 are each supplied with notch power corresponding to the air flow characteristics, so that the reference ventilator 10a and the other exhaust ventilators 10 are supplied. Ventilation air volume is balanced (that is, the same) and ventilation with the set air volume is realized.
The case where the airflow characteristics are different means that the exhaust airflow is different from the exhaust airflow of the reference ventilator when power is supplied to the exhaust ventilator using the same notch as the reference ventilator. The size of the fan of the exhaust ventilator It depends on etc.
[0026]
If the control device 14 is constituted by a microcomputer, it is possible to flexibly cope with the difference in the air flow characteristics of the exhaust ventilation devices 10 and 10a and to reduce the size of the control device 14, but the drive circuit 22 is effective. As shown in FIG. 5, a resistance element 31 is inserted between the power supply 27 and the exhaust ventilation device 10, and the same function can be achieved by a simple circuit configuration using a voltage drop generated at both ends of the resistance element 31. Can be made. That is, the voltage applied to the exhaust ventilation device 10 by insertion of the resistance element 31 is lower than the voltage applied to the reference ventilation device 10a. Therefore, the difference in the air flow characteristics is compensated by selecting the resistance element 31. It becomes possible to do.
[0027]
The drying / heating device 13 that performs drying and heating of the bathroom 4 and the control device 14 are linked by an interlocking signal line 32, and the exhaust ventilation device 10 and the drying / heating device 13 can be linked. However, when there is a heating operation instruction to the drying / heating device 13, the control device 14 stops the exhaust ventilation device 10 in the bathroom 4 during the heating operation. Thereby, the heat loss by ventilation can be reduced. When the drying / heating device 13 is instructed to perform a drying operation, the controller 14 does not stop the exhaust ventilation device 10 in the bathroom 4 because it is more effective to ventilate and to vent the drying. (See FIG. 6).
[0028]
In the ventilation system configured as described above, the reference ventilation device 10a of the toilet 2 is feedback-controlled so as to have the air volume set by the control device 14, and is always controlled so as to ventilate with a constant air volume. The exhaust ventilator 10 in the bathroom 4 or the washroom 3 is also controlled to ventilate with the same air volume as that of the reference ventilator 10a regardless of the air volume characteristics. Therefore, by controlling the exhaust air volume of the toilet 2, the air usually flows from the clean zone to the dirty zone in the entire house, and the entire house is constantly ventilated with a constant air volume.
[0029]
The reference ventilator 10a may be set in the washroom 3, and may be set from the viewpoint of the noise environment in the residence. That is, the ventilation system according to the first embodiment does not require any duct work, and does not change the structure of the house itself. Therefore, the ventilation system can be easily applied to a detached house without causing an increase in cost and has an air flow characteristic. Even with different exhaust ventilators 10 and 10a, the overall ventilation amount can be controlled with one exhaust ventilator 10a as the core, so that the configuration of the system itself is simple and the cost can be suppressed. Moreover, since the necessary minimum ventilation volume can be accurately maintained, the burden on the user in terms of maintenance costs and noise can be reduced.
[0030]
Embodiment 2. FIG.
In this second embodiment, with respect to the ventilation system shown in the first embodiment described above, the linkage between the exhaust ventilation device 10 and the drying / heating device 13 in the bathroom 4 is shown in FIGS. This is performed by a contact output 34 by a relay 33 provided on the side, and is the same as that of the first embodiment except for the configuration related to this. Therefore, FIG. 1 uses this, and the same part as Embodiment 1 uses the same code | symbol, and abbreviate | omits description about them.
[0031]
In the ventilation system of the second embodiment, as shown in FIGS. 7 and 8, the interlock output portion to the drying / heating device 13 in the control device 14 receives the interlock command signal from the drive circuit 22 via the signal line 35 and the relay 33. Is configured to receive. Only the contact output 34 of the relay 33 is output to the interlock output terminal 36, and the interlock input terminal 37 of the drying / heating apparatus 13 shown in FIG. The drying / heating device 13 has a commercial power supply terminal 38 in addition to the interlock input terminal 37, and is configured to energize the heater 12 and the circulation fan 11 by a built-in relay 39. Even if the commercial power supply terminal 38 of the drying / heating device 13 is connected, the interlocking output is a contact output, so that an excessive current does not flow to the control device 14, and the control device 14 can be prevented from being damaged. Also improves. Other configurations, functions, and advantages are the same as those of the first embodiment.
[0032]
Embodiment 3 FIG.
The third embodiment relates to a drying / heating remote controller 16 and a control device 14 for operating the drying / heating device 13 in the bathroom 4, and the ventilation system shown in the above-described first embodiment except for the configuration related thereto The same. Therefore, FIG. 1 uses this, and the same part as Embodiment 1 uses the same code | symbol, and abbreviate | omits description about them.
[0033]
As shown in FIGS. 9 and 10, the ventilation system according to the third embodiment sets the operation time of the drying / heating device 13 to the control device 14 constituted by a microcomputer, for example, 2 hours, 3 hours, 4 hours, and 5 hours. And a time setting means 40 that can be set as several types of reference time. On the other hand, in the drying / heating remote controller 16, as shown in FIG. 10, in addition to the operation switch 41 and the stop switch 42, there are three switches of a standard indicating switch 43, a long indicating switch 44 and a short indicating switch 45 relating to the drying time. It is arranged. The standard instruction switch 43 instructs the drying time of the set reference time, and thereby the control device 14 operates the drying / heating device 13 for the set standard time. The long instruction switch 44 instructs a drying time that is, for example, one hour longer than the set reference time, and the control device 14 causes the drying / heating device 13 to operate for one hour longer than the set standard time. The shorter instruction switch 45 instructs a drying time shorter than the set reference time, for example, by one hour, and the control device 14 causes the drying / heating device 13 to operate shorter than the set standard time (see FIG. 11).
[0034]
Thereby, three kinds of time can be set for each of the four types of standard times, and in the case of Embodiment 3, six kinds of drying time can be set except for the overlapping time. This makes it possible to configure a drying / heating remote controller 16 that can set a wide range of time with a small number of switches, eliminating the difficulty of setting the time by pressing the switch many times, and ease of use and operability. Will improve. Other configurations, functions, and advantages are the same as those of the first embodiment.
[0035]
【The invention's effect】
It requires no duct work extending widely, it without changing the structure of the building itself large, can be applied to easily to detached houses an airtight, corresponding it be a different exhaust ventilator wind quantity characteristic A flexible ventilation system is possible.
[0036]
In addition, a ventilation system is obtained that is coordinated with a drying / heating device for drying and heating a bathroom and that can suppress heat loss.
[0037]
Furthermore, it is possible to improve the safety of the ventilation system when connected to a drying / heating device for drying or heating the bathroom.
[0038]
Furthermore , the usability of the ventilation system is improved.
[0039]
Furthermore , the workability of the ventilation system is improved.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing a house to which a ventilation system according to a first embodiment is applied.
2 is a configuration diagram showing a configuration of a control device for a ventilation system according to Embodiment 1. FIG.
FIG. 3 is an operation explanatory diagram for comparing and explaining operations of the ventilation system according to the first embodiment.
FIG. 4 is an operation explanatory diagram illustrating an operation of the ventilation system according to the first embodiment.
FIG. 5 is a circuit configuration diagram partially showing another aspect of the control device of the ventilation system according to the first embodiment.
6 is an operation explanatory diagram of the ventilation system according to Embodiment 1. FIG.
FIG. 7 is a partial configuration diagram showing a ventilation system according to a second embodiment.
FIG. 8 is a configuration diagram showing a configuration of a drying / heating device in the ventilation system of the second embodiment.
FIG. 9 is an explanatory diagram showing time setting means in the ventilation system of the third embodiment.
FIG. 10 is a front view showing a drying / heating remote controller in the ventilation system of the third embodiment.
FIG. 11 is an explanatory diagram showing a time setting mode in the ventilation system of the third embodiment.
FIG. 12 is a configuration diagram showing a conventional ventilation device.
[Explanation of symbols]
2 Toilet 3 Washroom 4 Bathroom 5 Living room 8 Ventilator for air supply 10 Ventilator for exhaust 10a Exhaust ventilator (reference ventilator)
DESCRIPTION OF SYMBOLS 13 Drying / heating apparatus 14 Control apparatus 16 Drying / heating remote control 17 Main power switch 20 Differential pressure sensor 21 Ventilation control circuit 22 Drive circuit 25 Electricity rate control circuit 27 Power supply 28 ch1 power supply line 29 ch2 power supply line 30 ch3 power supply line 31 Resistance element 32 Interlocking signal line 33 Relay 36 Interlocking output terminal 38 Commercial power supply terminal 39 Relay 40 Time setting means 43 Standard indicating switch 44 Long indicating switch 45 Short indicating switch

Claims (7)

Exhaust ventilation device without ducts with variable exhaust air volume provided in the room in the building,
A reference ventilator provided in a room different from the room, and a return function provided in the exhaust ventilator;
A signal from the feedback function is received, the exhaust air volume of the reference ventilation device is controlled to be constant, and the exhaust air ventilation is controlled so that the exhaust air volume of the exhaust ventilation device is the same as that of the reference ventilation device. A ventilation system comprising: a control device that controls an amount of electric power input to the device . Exhaust ventilation device without ducts with variable exhaust air volume provided in the room in the building,
A reference ventilator provided in a room different from the room, and a return function provided in the exhaust ventilator;
Receiving a signal from the feedback function, to generate a ventilation drive command signal such that the amount of wind exhaust air volume is set in the reference ventilator duty factor of the channel corresponding to the ventilation driving command signal to the reference ventilator exhaust air volume the power supply to said reference ventilator is controlled to be constant by the control circuit, the exhaust air volume of the exhaust ventilator on the basis of the ventilation driving command signal by duty factor control circuit of the individual other channels the A ventilation system comprising: a control device that controls the amount of electric power input to the exhaust ventilation device so that the exhaust air volume is the same as that of a reference ventilation device . Exhaust ventilation device without ducts with variable exhaust air volume provided in the room in the building,
A reference ventilator provided in a room different from the room, and a return function provided in the exhaust ventilator;
A control device that receives a signal from the feedback function , controls a notch of a power source to supply power so that an exhaust air volume of the reference ventilation device is constant, and controls to supply power to the exhaust ventilation device at the notch;
The reference ventilator exhaust air volume and ventilator exhaust different ing the feeding at the same notch exhaust air volume the reference ventilator, changes the voltage of the power supply so that the amount of exhaust air is the same exhaust air volume and the reference ventilator Ventilation system comprising a resistive element . At least one of the rooms provided with the exhaust ventilation device is a bathroom, and the bathroom is provided with a drying / heating device,
Controller ventilation system of claims 1 to 3, wherein during heating operation and this and features for controlling to stop the operation of the exhaust ventilator provided in the bathroom of the drying and heating device. At least room in the room provided with an exhaust ventilator is full, the bath is powered from a commercial power source terminal, drying and heating device is provided which operates by a built-in relay to dry and heating the bath ,
The ventilation system according to any one of claims 1 to 3 , wherein the control device includes a relay that outputs a linked output to the relay as a contact output . A control unit having a time setting means capable of setting the operation time of Drying and heating apparatus as several reference time in order to remotely control, and the standard instruction switch for instructing the set reference time as a standard, longer than the reference time The ventilation system according to any one of claims 4 to 5 , further comprising a remote control having a long instruction switch for indicating a time and a short instruction switch for indicating a time shorter than a reference time. Reference ventilator, provided the main power switch for the power supply and deenergized exhaust ventilator and a control device to control device 1 through claim wherein the main power switch is characterized in that to allow exposure to the room 6. The ventilation system according to 6 .

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