JPH09318111A - Ventilating device for bathroom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effect the ventilation of a bathroom while detecting simply the existence of a bathing person by using only an inexpensive sensor, in a ventilating device employed for the bathroom. SOLUTION: A bathroom 6 is equipped with a temperature sensor 1, a humidity sensor 2 and a ventilating fan 3 and an existence of bathing person deciding device 5 is accommodated in a control unit 4 to decide the existence of the bathing person simply by paying special attention to the factors, such as a high humidity value, big change in humidity, a high temperature value and a big change in temperature, and effect the operation/stopping of the ventilating fan 3 automatically. According to this method, a bathroom ventilating device, equipped with only inexpensive sensors, requiring no expensive sensors, such as a sensor for existence of person in a room, an outdoor temperature sensor and the like, and inexpensive in the initial cost as well as the working cost, can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathroom ventilator used in a residential bathroom.

[0002]

2. Description of the Related Art Heretofore, as this type of bathroom ventilator, the one described in Japanese Patent Laid-Open No. 1-6634 has been known.

The bathroom ventilation device will be described below with reference to FIG. As shown in the figure, when a person enters the bathroom 101, the presence / absence detection sensor 115 detects the presence of a person in the room. At this time, the control circuit 119 determines whether the outside air temperature detected by the outside air temperature sensor 118 is less than a certain set value. If it is less than the set value, the ventilation fan 108 is not operated. If it is not below the set value, the control circuit 119 determines whether the temperature detected by the indoor temperature sensor 116 is below the set value and the humidity detected by the humidity sensor 117 is below the set value. If neither of the two is less than the set value, the ventilating fan 108 is operated until both of them become less than their respective set values, and when both become less than their respective set values, the ventilating fan 108 is stopped.

[0004]

In such a conventional bathroom ventilator, an outside air temperature sensor and a room presence / absence sensor are required, which requires initial cost and construction cost.
It is required to reduce costs and save work.

The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a ventilation device for a bathroom in which the number of sensors is reduced and the cost can be reduced.

Further, in the conventional bathroom ventilation device, since only ventilation is possible for drying the bathroom, the operating time for drying becomes long, and it is required to perform this time easily in a short time. There is.

The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a bathroom ventilator capable of drying a bathroom in a short time.

Further, since the conventional ventilation system for a bathroom cannot cope with the cold air feeling caused by cold draft in winter without stopping the ventilation device, it is possible to improve the feeling of cold air caused by cold draft during bathing in winter while ventilating. Is required.

The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a ventilation device for a bathroom which can reduce the feeling of cold wind due to cold draft due to ventilation during winter bathing.

[0010]

[Means for Solving the Problems] One means of a bathroom ventilation device of the present invention for solving the above problems is to install a temperature sensor and a humidity sensor in a bathroom to detect the temperature and humidity in the bathroom. Automatically operate the ventilation fan, and pay attention to the change in temperature and humidity, and depending on the change and the stable state, determine that the bather has entered the room, move the ventilation fan, stop it, and use the sensor. This is to reduce the initial cost and to have the same function.

Another means is to easily dry the bathroom.
In order to perform efficiently, it is equipped with a device that changes the rotating direction of the fan blades so that the fan can both ventilate and supply air.

Further, according to the present invention, by the above-mentioned means, it is possible to obtain a bathroom ventilator which can easily take in outside air and can efficiently dry the bathroom.

The bathroom ventilator according to the present invention for solving the above-mentioned problems is one in which an appropriate heating device is attached to each part of the bathroom.

According to the present invention, the above-mentioned means can provide a ventilation device for a bathroom which can reduce the feeling of cold air due to cold draft during ventilation in winter.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention includes a temperature sensor for detecting the temperature in the bathroom, a humidity sensor for detecting the humidity in the bathroom, and a ventilation fan for ventilating the bathroom. The ventilation device for a bathroom is provided with a control means for automatically operating the ventilation fan, and the control means is a bather presence / absence determining means, and the bather uses a door to recognize the presence / absence of a bather when bathing. When opening the bath, the temperature sensor detects the temperature change in the bathroom, and at the same time it detects the humidity change in the bathroom. The bather recognizes that the bather is taking a bath by seeing that the temperature and humidity in the bathroom are stable at high values because of bathing or bathing. From these things, there is an effect that the presence or absence of a bather can be recognized only by the temperature sensor and the humidity sensor.

According to a second aspect of the present invention, there is provided a rotation direction reversing means for changing the rotation direction of the blades of the ventilation fan, and the rotation direction reversing means changes the rotation direction of the ventilation fan to supply the outside air. A ventilation device for a bathroom according to claim 1, wherein the bathroom can be dried by means, and a control device is provided by pressing an air supply switch when the bathroom is dried in order to prevent mold in the bathroom. By changing the rotation direction of the ventilation fan blades from the
It has the effect of changing the direction of wind flow to the opposite direction, and allowing the intake of outside air, as opposed to ventilation.

The invention according to claim 3 is the ventilation device for a bathroom according to claim 1, wherein the air supply port at the entrance of the bathroom is provided with a heating means, and a bather exists in the bathroom. Sometimes, in the winter, when the ventilation fan is operated, the temperature of the air supply from the room is low, so the bather feels cold due to the cold draft. Most of the air supply from this room enters the bathroom through the air supply opening at the entrance of the bathroom. Therefore, a heater is built in this air supply opening to warm the air supply from the room and supply it to the bathroom. As a result, it is possible to reduce the feeling that the bather feels cold, and it is possible to perform the ventilation of the bathroom even in the winter, while reducing the feeling of cold wind due to the cold draft of the bather.

The invention according to claim 4 is the ventilation device for a bathroom according to claim 1, wherein the floor of the bathroom is provided with a heating means, and when the bather is present in the bathroom, the invention is provided in winter. In this case, when the ventilation fan is operated, the temperature of the air supply from the room is low, so the bather feels cold due to the cold draft. By heating the bathroom floor by installing a heater on the floor of the bathroom, the bather's feet will be warmed directly, so it is possible to reduce the feeling that the bather feels cold after entering the bathroom. It has an effect that it is possible to perform the ventilation while reducing the cold air feeling due to the cold draft of the bather.

The invention according to claim 5 is the ventilation device for a bathroom according to claim 1, wherein the bathroom is equipped with a flushing means, and in the case of winter when there are bathers in the bathroom, When operating the ventilation fan, the temperature of the air supply from the room is low, so the bather feels cold due to the cold draft. By constantly flowing hot water to the bathroom floor, the bathroom floor is warmed and the feet of the bather are directly warmed, so it is possible to reduce the bather's feeling of being cold after entering the bathroom. While performing the above, it has an effect that it is possible to reduce the feeling of cold wind due to the cold draft of the bather.

The invention according to claim 6 is the ventilation device for a bathroom according to claim 1, wherein the wall of the bathroom is provided with a heating means, and when a bather exists in the bathroom, it is used in the winter season. In this case, when the ventilation fan is operated, the temperature of the air supply from the room is low, so the bather feels cold due to the cold draft. A heater is built into the wall of the bathroom and the warm air is directed toward the bather to directly warm the bather, which reduces the bather's feeling of being cold after entering the bathroom. It has an effect that it is possible to perform the ventilation while reducing the cold air feeling due to the cold draft of the bather.

Embodiments of the present invention will be described below with reference to the accompanying drawings. (Embodiment 1) FIG. 1 shows a schematic view of a bathroom and a system configuration diagram of a bathroom ventilation device, and FIG. 2 shows an algorithm for determining the presence or absence of a bather. In FIG. 1, a temperature sensor 1, a humidity sensor 2, and a ventilation fan 3 are installed in a bathroom 6 and connected to a control device 4, respectively.

Further, the bather presence / absence determining device 5 is built in the control device 4. In FIG.
Starting from the start 16 of the bather presence / absence determination algorithm, the following are temperature and humidity detection 17, determination of whether the humidity is stable in a high state 18, determination of whether the previous humidity change is large 19, stable in a high temperature Judgment 20 whether there is a large change in temperature immediately before, 21 recognition that there is a bather 2
2, the ventilation fan stop command 23, the ventilation fan operation command 24, and after a certain period of time 25, the process returns to the beginning.

In the above structure, the temperature sensor 1 and the humidity sensor 2 respectively detect the temperature and humidity of the bathroom 6,
An electric signal is input to the control device 4, while the bather presence / absence determination device 5 of the control device 4 first uses the temperature sensor 1 and the humidity sensor 17 to detect the temperature in the bathroom based on the algorithm of FIG. , To detect humidity. After that, it is judged at 18 whether the humidity value is stable at, for example, RH 100%.
If it is low, it is determined that the bather has not entered the room, and the process returns to 17 again. At 19, it is judged whether or not the humidity change immediately before is large, and if it is small, it is judged that there is no bather, and the operation goes to 24 to operate the ventilation fan. When it is judged that the humidity change is large,
For example, when it changes from 40% to 90%, it is determined that the bather may be taking a bath, and the procedure goes to the next 20. 20
Then, it is determined whether or not the temperature in the bathroom is stable at a high value. If it is not high, the process goes to 24, the ventilation fan is operated, and if it is high, the process proceeds to the next 21. At 21, it is determined whether the temperature change immediately before is large, and if it is small, go to 24,
Operate the ventilation fan and recognize that there is a bather if it is large.

However, this determination may not be possible in the summer, but even if the ventilation fan is operated, the cold draft due to ventilation does not occur because the temperature of the bathroom is high, so it is excluded. After determining that there is a bather, go to 23 and stop the ventilation fan. In both of the operation of the ventilation fan 23 and the operation of the ventilation fan 24, the operation goes to 25 and returns to the temperature / humidity detection 17 again after a lapse of a certain time, and the above operation is repeated.
As described above, the presence / absence of a bather can be determined when necessary without using expensive and expensive construction sensors such as an in-room presence / absence sensor and an outside air temperature sensor using only the temperature sensor and the humidity sensor.

(Embodiment 2) FIG. 3 shows a schematic view of a bathroom and a system configuration diagram of a ventilation device for a bathroom. In FIG. 3, a temperature sensor 1, a humidity sensor 2, and a ventilation fan 3 are installed in a bathroom 6, respectively. It is connected to the control device 4. The air supply switch 8 is also connected to the control device 4, and the inverter device 7 is connected to the control device 4 and the ventilation fan 3.

In the above structure, the temperature sensor 1 and the humidity sensor 2 respectively detect the temperature and humidity of the bathroom 6,
An electric signal is input to the control device 4. On the other hand, in response to a command from the air supply switch 8, the output is changed from the control device 4 to the inverter device 7 so as to reverse the rotation direction of the ventilation fan 3, and the ventilation fan 3 operates to supply the outside air to dry the bathroom. When the outside air is taken in, the controller 4 monitors changes in temperature and humidity, and if the humidity does not drop after a certain period of time, the air supply is stopped. Easily by pressing
The bathroom can be efficiently dried.

(Embodiment 3) FIG. 4 shows an entrance of a bathroom, and in FIG. 4, an entrance 9 is provided with an air supply port for ventilation of the bathroom. FIG. 5 is an enlarged view of the air supply port 10 at the entrance 9 of the bathroom, in which a heater 11 is built in the middle of the air supply port 10. In the above configuration, when the air is supplied from the room during ventilation of the bathroom in winter, the room temperature is low,
By warming the air passing through the air supply port 10 with the heater 11 and supplying the air into the bathroom, it is possible to reduce the cold wind sensation of the bather due to the cold draft in the winter.

(Embodiment 4) FIG. 6 is a schematic view of a bathroom.
A floor embedded heater 12 is built in the floor of the bathroom 6.
By warming the floor of the bath during the winter bathing in the above structure, the foot of the bather is directly warmed, and the discomfort of being cold due to cold draft due to ventilation can be reduced.

(Fifth Embodiment) In FIG. 7, a hot water supply port 13 is installed on a wall of a bathroom. In the above configuration, when hot water is bathed in the winter, hot water is made to flow from the hot water supply port 13 to the floor of the bathroom to warm the feet of the bather and reduce the discomfort of being cold due to ventilation due to cold draft.

(Sixth Embodiment) In FIG. 8, a hot air outlet 15 is installed on the wall of a bathroom. In the above structure, by blowing hot air toward the bather from the hot air outlet 15 on the wall of the bathroom when bathing in winter, the bather can be warmed and the discomfort of being cold due to cold draft due to ventilation can be reduced.

In the above description, the rotation conversion device is the inverter device, but other devices can be similarly implemented.

Although the heating device has been described as an example of a heater or a floor-embedded heater, other hot water coils can be used in the same manner.

[0033]

FIG. 1 shows a first embodiment of the present invention.
This will be described with reference to FIG.

As shown in FIG. 1, the temperature sensor 1 and the humidity sensor 2 are installed in the bathroom 6, and the ventilation fan 3 is installed in the bathroom 6. These are respectively connected to the control device 4, and the control device 4 incorporates a bather presence / absence determination device 5. With the above configuration, the temperature sensor 1 and the humidity sensor 2
Detects the temperature and humidity of the bathroom 6 and outputs it to the control device 4. Further, the bather presence / absence determining device 5 is built in the control device 4.

With the above structure, the temperature sensor 1 detects the temperature, the humidity sensor 2 detects the humidity, and outputs a signal to the control device 4, respectively. Based on these pieces of information, the control device 4 determines whether or not there is a bather by the bather presence / absence determination device 5, and operates the ventilation fan 3 to be operated or stopped.

The bather presence / absence determining device 5 is adapted to determine the presence / absence of a bather by an algorithm as shown in FIG. In FIG. 2, the bather presence / absence determination algorithm starts from start 16 and then the temperature and humidity detection 1
7. Judgment whether it is stable in a high humidity state 18, Judgment whether there is a large humidity change immediately before 19, Judgment whether it is stable in a high temperature condition 20, Judgment whether a previous temperature change is large 21, Bathing Recognition of the presence of a worker 22, a ventilation fan stop command 23,
The ventilation fan operation command 24 is returned to the beginning when a certain period of time 25 elapses.

In the above structure, the temperature sensor 1 and the humidity sensor 2 respectively detect the temperature and humidity of the bathroom 6,
An electric signal is input to the control device 4, while the bather presence / absence determination device 5 of the control device 4 first uses the temperature sensor 1 and the humidity sensor 17 to detect the temperature in the bathroom based on the algorithm of FIG. , To detect humidity. afterwards,
It is judged at 18 whether the humidity value is stable at, for example, RH 100%. If it is high, it goes to the next 19, and if it is low, it is judged that the bather has not entered the room, and 1 is returned again.
Return to 7. At 19, it is judged whether or not the humidity change immediately before is large, and if it is small, it is judged that there is no bather, and the operation goes to 24 to operate the ventilation fan. When it is determined that the humidity change is large, for example, when it changes from 40% to 90%, it is determined that the bather is taking a bath, and the process proceeds to the next 20. At 20, it is judged whether or not the temperature in the bathroom is stable at a high value, and if it is not high, it goes to 24, the ventilation fan is operated, and if it is high, it goes to the next 21. In 21, it is determined whether the temperature change immediately before is large, and if it is small, it is 24
Go to, turn on the ventilation fan, and if larger, recognize that there is a bather. However, this determination may not be possible in the summer, but even if the ventilation fan is operated, the cold draft due to ventilation does not occur in the winter because the temperature of the bathroom is high, so it is excluded. After determining that there is a bather, go to 23,
Turn off the fan. In both of the operation of the ventilation fan 23 and the operation of the ventilation fan 24, the operation goes to 25 and returns to the temperature / humidity detection 17 again after a lapse of a certain time, and the above operation is repeated.

As described above, according to the bathroom ventilator of the first embodiment of the present invention, it is possible to substitute the detection of the bather by an inexpensive sensor having only the temperature sensor 1 and the humidity sensor 2.

Next, a second embodiment of the present invention will be described with reference to FIG. As shown in the figure, the temperature sensor 1 and the humidity sensor 2 are installed in the bathroom 6, and the ventilation fan 3 is installed in the bathroom 6. These are connected to the control device 4, the air supply switch 8 is connected to the control device 4, and the inverter device 7 is connected to the control device 4 and the ventilation fan 3, respectively.

With the above configuration, the description of the same contents as in the first embodiment will be omitted. The temperature sensor 1 and the humidity sensor 2 detect the temperature and humidity of the bathroom 6 and output them to the control device 4.
On the other hand, by pressing the air supply switch 8 to dry the bathroom 6, the control device 4 causes the inverter device 7 to move to the ventilation fan 3
Reversing the direction of rotation, the outside air is supplied. In this case, after a certain period of air supply operation, the controller 4 determines the change in the humidity sensor 2, and if the decrease in humidity is large,
The air supply operation is continued, and when the decrease in humidity is small or increases, the supply of air to the ventilation fan 3 is stopped.

As described above, according to the bathroom ventilation device of the second embodiment of the present invention, the ventilation fan 3 can be used for supplying the outside air, and the bathroom 6 can be easily and efficiently dried. .

Next, a third embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. Bathroom 6 as shown in FIG.
An entrance 9 is installed at the entrance, and an air supply opening 10 is provided at the entrance 9. On the other hand, FIG. 5 shows details of the air supply port 10 of the inlet 9, and the heater 11 is built in the air supply port 10.

With the above construction, when the bath 6 is ventilated in winter, the temperature inside the bath is low, so when the bather tries to take a bath, it feels cold draft due to the ventilation in the bath and it is cold. I feel To prevent this,
The air supply from the room to the air supply port 10 is warmed by the heater 11 and then supplied into the bathroom to prevent cold wind from entering the bathroom.

As described above, according to the bathroom ventilation device of the third embodiment of the present invention, it is possible to reduce the feeling of cold air due to the cold draft of ventilation during bathing in winter.

Next, a fourth embodiment of the present invention will be described with reference to FIG. As shown in FIG. 6, a floor embedded heater 12 is installed on the floor of the bathroom 6.

With the above structure, when bathing in the bathroom 6 during the winter, the floor embedded heater 12 heats the floor of the bathroom 6 to directly warm the feet of the bather, and the bather colds the ventilation. Try to reduce the feeling of cold wind due to drafts.

As described above, according to the bathroom ventilator of the fourth embodiment of the present invention, it is possible to reduce the cold air feeling due to the cold draft of the air supply during bathing in winter.

Next, a fifth embodiment of the present invention will be described with reference to FIG. As shown in FIG. 7, a hot water supply port 13 is installed inside the bathroom 6, and the floor is inclined so as to flow into the drainage port 14.

With the above configuration, when bathing in the bathroom 6 during ventilation in the winter, warm water is poured from the hot water supply port 13 to the floor of the bathroom to warm the feet of the bather and the bather ventilates the cold draft. It is possible to reduce the feeling of cold wind.

As described above, according to the bathroom ventilation device of the fifth embodiment of the present invention, it is possible to reduce the feeling of cold air due to the cold draft of the air supply during bathing in winter.

Next, a sixth embodiment of the present invention will be described with reference to FIG. As shown in FIG. 8, a warm air outlet 15 is installed on the wall of the bathroom 6.

With the above-described structure, when the bath 6 is ventilated in the winter, when warm air is blown from the warm air outlet 15 toward the bather to warm the bather, the bather is cold for ventilation. To make it possible to reduce the feeling of cold wind due to drafts.

As described above, according to the bathroom ventilator of the sixth embodiment of the present invention, it is possible to reduce the cold air feeling due to the cold draft of the air supply during bathing in winter.

[0054]

As described above, according to the present invention, it is possible to easily determine the bathing person's entry into the room by using only the inexpensive temperature sensor and the humidity sensor, thereby reducing the initial cost and the construction cost. can get.

Further, when the bathroom is dried, it is possible to easily and efficiently carry out the drying by positively taking in outside air. In addition, the effect of reducing the feeling of cold wind due to cold draft due to air supply during winter bathing is obtained.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a system configuration according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a bather presence / absence determination algorithm according to the first embodiment of the present invention.

FIG. 3 is a configuration diagram showing a system configuration according to a second embodiment of the present invention.

FIG. 4 is a configuration diagram of an air supply port at an entrance of a bathroom according to a third embodiment of the present invention.

FIG. 5 is a partially enlarged view of the air supply port at the entrance of the bathroom according to the third embodiment of the present invention.

FIG. 6 is a schematic diagram of a bathroom according to a fourth embodiment of the present invention.

FIG. 7 is a configuration diagram showing a system configuration according to a fifth embodiment of the present invention.

FIG. 8 is a configuration diagram showing a system configuration according to a sixth embodiment of the present invention.

FIG. 9 is a configuration diagram showing a system configuration of a conventional bathroom ventilation device.

[Explanation of symbols]

 1 Temperature sensor 2 Humidity sensor 3 Ventilation fan 4 Control device 5 Bather presence / absence determination device 6 Bathroom 7 Inverter device 8 Air supply switch 9 Entrance 10 Air supply port 11 Heater 12 Floor embedded heater 13 Hot water supply port 15 Hot air outlet

Claims (6)

[Claims] 1. A temperature sensor for detecting the temperature in a bathroom,
A ventilation device for a bathroom, comprising: a humidity sensor for detecting humidity in a bathroom; a ventilation fan for ventilating the bathroom; a control unit for automatically operating the ventilation fan; and a bather presence / absence determining unit for the control unit. 2. A rotation direction reversing means for changing the rotation direction of the blades of the ventilation fan, and an air supply operation means for changing the rotation direction of the ventilation fan by the rotation direction reversing means to supply the outside air. Item 1. A ventilation device for a bathroom according to item 1. 3. The ventilation device for a bathroom according to claim 1, wherein the air supply port at the entrance of the bathroom is provided with a heating means. 4. The heating means is provided on the floor of the bathroom.
Ventilation device for bathroom as described. 5. The ventilation device for a bathroom according to claim 1, wherein the bathroom is provided with a water flow means. 6. The heating means is provided on the wall of the bathroom.
Ventilation device for bathroom as described.