JP2012213520A - Bathroom drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathroom drying machine capable of appropriately determining end timing of a drying operation.SOLUTION: A bathroom drying machine includes heating means with a ventilating function, and control means 1. The control means 1 for controlling an operation of the heating means with a ventilating function, from the time when absolute humidity in a bathroom tends to decline after starting a drying operation to reach a declining stable state in which a change in decline, indicating the declining trend, within a predetermined period falls into a predetermined range, calculates a post-stabilization integrated exhaust water volume obtained by integrating, in association with the elapse of time, the product of the ventilation volume of ventilation means and the difference in humidity obtained by subtracting an absolute temperature of outside air from that of a bathroom Y, and determines that an operation end condition is satisfied when the post-stabilization integrated exhaust water volume reaches a predicted residual exhaust water volume, and assuming that the absolute temperature in the bathroom will decline to outside air humidity or a determination temperature at the declining in the declining stable state, the determination temperature obtained by adding a setting value to the outside air humidity, determines, as the predicted residual exhaust water volume, an exhaust water volume to be exhausted from the bathroom in a period from reaching the declining stable state until the absolute temperature in the bathroom declines to the outside air humidity or the determination humidity.

Description

The present invention provides ventilation means for sucking air in the bathroom and discharging it to the outside, circulation means for sucking the air in the bathroom and blowing the air into the bathroom, and air ventilated by the circulation means Heating means with ventilation function provided with an air heating means for heating, and control means for controlling the operation of the heating means with ventilation function are provided,
When the control means is instructed to start the drying operation, the heating means with ventilation function is operated to perform the drying operation in the drying operation operating state determined as the operating state for the drying operation, and the operation is completed. The present invention relates to a bathroom dryer configured to stop the drying operation when a condition is satisfied.

Such a bathroom dryer is configured to dry objects to be dried such as laundry in the bathroom by ventilating the bathroom and heating the air in the bathroom with air heating means and blowing it out into the bathroom. Is.
By the way, when the ventilation means that sucks air in the bathroom and exhausts it to the outside, the outside air flows outside the bathroom, such as a dressing room adjacent to the bathroom, from a gallery provided on the bathroom door. Thus, the bathroom is ventilated, and by this ventilation, moisture released from the object to be dried is discharged outside the bathroom.
In addition, when drying an object to be dried such as laundry, a drying bar that supports the object to be dried is generally disposed between opposite side walls of the bathroom, and the object to be dried is directly supported by the drying bar. Or supporting a hanger that holds an object to be dried.

The heating means with ventilation function is often installed on the ceiling of the bathroom, but may be installed on the side wall of the bathroom.
As the air heating means equipped in the heating means with a ventilation function, a heat exchanger in which a heat medium (for example, 80 ° C. hot water) is circulated and supplied is often used, but an electric heater is used. In some cases, a conventional electric heater is used.

  As a first conventional example of such a bathroom dryer, when starting the drying operation, the temperature outside the bathroom is measured in advance and stored as an ambient temperature, and after the drying operation is started, When the humidity falls below the set value, the remaining operating time is determined based on the ambient temperature measured and stored in advance and a conversion table that defines the relationship between the ambient temperature and the remaining operating time. When the elapsed time from when the humidity in the inside becomes the set value or less becomes the remaining operation time, there is one configured to stop the drying operation, assuming that the operation end condition is satisfied (for example, Patent Documents) 1).

  That is, in this first conventional example, when the drying of the object to be dried proceeds and nears the end of the drying, and the humidity in the bathroom becomes lower than the set value, the remaining operation time is determined, and the elapsed time since then When the remaining operation time is reached, the drying operation is stopped.

In addition, as a second conventional example of a bathroom dryer, a weight sensor that detects the weight of an object to be dried is provided, and when the time change rate of the weight detected by the weight sensor becomes a certain value or less, the operation end condition Has been configured to stop the drying operation (see, for example, Patent Document 2).
By the way, in this Patent Document 2, the weight sensor is configured to detect the weight acting on the receiving portion supporting the clothes drying bar (drying basket) that supports the object to be dried as the weight of the object to be dried. Yes.

  In other words, in the second conventional example, when the drying of the object to be dried is finished, the moisture is not evaporated from the object to be dried, and when the weight of the object to be dried does not change, the drying operation is stopped. It is.

JP-A-6-225993 JP 2000-271396 A

  In the first conventional example, when the drying of the object to be dried proceeds and near the end of drying, when the humidity in the bathroom becomes lower than the set value, the ambient temperature measured and stored in advance, and The remaining operation time is determined based on the conversion table that defines the relationship between the ambient temperature and the remaining operation time.When the elapsed time from this time becomes the remaining operation time and the drying operation is stopped, the remaining operation time is determined. It is not clear whether the dried product is properly dried.

  In other words, the humidity in the bathroom is not only influenced by the moisture released from the material to be dried, but also by the outside air that flows into the bathroom as the ventilation means ventilate. The drying state of the object to be dried when the value falls below the value can be considered to be different depending on the humidity and temperature fluctuations of the outside air flowing into the bathroom, and as a result, the humidity in the bathroom is below the set value. It becomes difficult to determine that the object to be dried can be properly dried by determining the remaining operation time.

  In the second conventional example, when the time change rate of the weight detected by the weight sensor becomes equal to or less than a predetermined value, it is determined that the operation end condition is satisfied. There was a risk that it would be difficult to properly determine that it has become.

That is, since the air ventilated by the circulation means flows in contact with the object to be dried, the object to be dried swings.
In this way, if the material to be dried is shaken by the air ventilated by the circulation means, the detection value of the weight sensor will fluctuate up and down, so that the time change rate of the weight is below a certain value. May be difficult to discriminate properly, and as a result, there is a risk of overdrying or under-drying of the object to be dried.

  In other words, the first conventional example and the second conventional example automatically determine the end of the drying operation, but there is a possibility that the end timing of the drying operation cannot be properly determined. There is a risk of over-drying and under-drying, and improvement is desired.

  This invention is made | formed in view of the said situation, The objective is to provide the bathroom dryer which can discriminate | determine the completion | finish timing of drying operation suitably.

The first characteristic configuration of the bathroom dryer of the present invention is a ventilation means for sucking the air in the bathroom and discharging it outside, a circulation means for sucking the air in the bathroom and blowing the air into the bathroom, and Heating means with ventilation function provided with air heating means for heating the air ventilated by the circulation means;
Control means for controlling the operation of the heating means with ventilation function is provided,
When the control means is instructed to start the drying operation, the heating means with ventilation function is operated to perform the drying operation in the drying operation operating state determined as the operating state for the drying operation, and the operation is completed. When the condition is satisfied, the drying operation is configured to be stopped,
Outside humidity detection means for detecting the absolute humidity of the outside air flowing into the bathroom in accordance with the ventilation operation of the ventilation means, and bathroom humidity detection means for detecting the absolute humidity in the bathroom are provided,
The control means is
When the detected humidity of the bathroom humidity detecting means tends to decrease after the drying operation is started, and the inclination is in a stable state in which the change within the set time indicating the decreasing tendency is within the set range. From the humidity detected by subtracting the humidity detected by the outside air humidity detecting means from the humidity detected by the bathroom humidity detecting means, the product of the ventilation amount of the ventilation means and the integrated cumulative drainage amount obtained over time is obtained. And when the accumulated drainage amount after the stabilization becomes the predicted remaining drainage amount, it is configured to determine that the operation end condition is satisfied, and
When the absolute humidity in the bathroom decreases to the outside humidity detected by the outside air humidity detecting means or the humidity for determination obtained by adding a set value to the outside air humidity by the slope when the tilt is stable. Assuming that the slope is in a stable state, the amount of drainage discharged from the bathroom while the absolute humidity in the bathroom is reduced to the outside air humidity or the discrimination humidity is obtained, and the amount of drainage is predicted. It is characterized in that it is configured to be determined as the amount of residual wastewater.

  That is, when the control means starts a drying operation, the absolute humidity in the bathroom tends to decrease, and when the change in the setting time of the inclination indicating the decreasing tendency is within a setting range, Assuming that the absolute humidity in the bathroom drops to the outside air humidity detected by the outside air humidity detecting means or the discrimination humidity obtained by adding the set value to the detected humidity, the slope becomes stable. From time to time, the amount of drainage discharged from the bathroom while the absolute humidity in the bathroom drops to the outside air humidity or the discrimination humidity is determined, and the drainage amount is determined as the predicted remaining drainage amount.

  By the way, the amount of drainage discharged from the bathroom while it falls to the outside air humidity or the humidity for discrimination from the time when the inclination is stable, the humidity difference obtained by subtracting the outside air humidity from the absolute humidity of the bathroom, which is assumed to change over time. And the ventilation amount of the ventilation means can be obtained by integrating with the passage of time.

  Then, when the control means is in a tilt stable state, the product of the humidity difference obtained by subtracting the absolute humidity of the outside air from the absolute humidity in the bathroom and the ventilation amount of the ventilation means is integrated over time. When the accumulated post-stabilized drainage amount is calculated and the post-stabilized cumulative drainage amount reaches the predicted remaining drainage amount, it is determined that the operation end condition has been satisfied, and the drying operation is stopped. It is possible to discriminate and suppress overdrying and insufficient drying of the object to be dried.

  In addition, since moisture is released from the object to be dried when a drying operation is performed, the absolute humidity in the bathroom is a value obtained by adding the moisture released from the object to be dried to the outside air flowing into the bathroom. The humidity difference between the absolute humidity in the bathroom and the absolute humidity of the outside air is a value corresponding to the amount of moisture released from the object to be dried, and the amount of moisture corresponding to the humidity difference is the ventilation With the ventilation of the means, it will be discharged out of the bathroom one after another.

  For this reason, the post-stabilized cumulative drainage amount is a value corresponding to the amount of water released from the material to be dried and discharged outside the bathroom during the period from the time when the inclination is stable until the present time.

  As described above, the absolute humidity of the bathroom is equivalent to the value obtained by adding the moisture released from the object to be dried to the outside air flowing in the bathroom, so that it is released from the object to be dried when the drying operation is started. Since the amount of moisture that is produced will gradually increase, the absolute humidity of the bathroom will gradually increase.

And when the amount of the object to be dried is large and the amount of moisture per unit time released from it is large, the absolute humidity of the bathroom will increase to a saturated state and maintain that state, After that, when the amount of moisture per unit time released from the material to be dried decreases, the absolute humidity of the bathroom gradually decreases, and finally the absolute humidity of the outside air flowing into the bathroom or its absolute humidity. The humidity will drop to a little higher than the humidity.
Incidentally, at the end of the drying operation, the amount of moisture released from the object to be dried is reduced, but since the drying state varies depending on the material and thickness of the object to be dried and the installation position in the bathroom, the release of moisture is not lost. In addition, since water droplets may remain on the floor surface of the bathroom, generally, the absolute humidity of the bathroom is slightly higher than the absolute humidity of the outside air flowing into the bathroom at the end of the drying operation. There are many cases.

Thus, in general, the absolute humidity of the bathroom increases to a saturated state after starting the drying operation, and then gradually decreases. When the amount of water per unit is small, the absolute humidity of the bathroom rises once without increasing to a saturated state, and then gradually decreases.
That is, the absolute humidity in the bathroom gradually increases when drying is started, and decreases as drying progresses, regardless of the amount of the object to be dried.

As a result of the inventors' diligent research, the absolute humidity of the bathroom has a tendency to decrease, and then the inclination becomes stable, and then the absolute humidity of the outside air flowing into the bathroom in the inclination stable state or its It has been found that the humidity drops to near a humidity slightly higher than the absolute humidity.
By the way, after the absolute humidity of the bathroom approaches the absolute humidity of the outside air flowing in the bathroom or slightly higher than the absolute humidity, the absolute humidity of the bathroom changes more slowly than before. Then, the absolute humidity of the outside air flowing into the bathroom is lowered to a humidity slightly higher than the absolute humidity.

  Utilizing this fact, the absolute humidity in the bathroom at the inclination when the inclination becomes stable, the outside humidity detected by the outside air humidity detecting means, or the discrimination humidity obtained by adding a set value to the outside air humidity The amount of drainage discharged from the bathroom is calculated while the absolute humidity in the bathroom decreases to the outside air humidity or the humidity for discrimination after the slope becomes stable. If it is determined as the drainage amount, the predicted remaining drainage amount can be determined as the drainage amount to be discharged from the bathroom from the drying operation after the tilt stable state.

  Therefore, after the slope becomes stable, the post-stable cumulative drainage amount is obtained, and when the post-stable cumulative drainage amount reaches the predicted residual drainage amount, it is determined that the operation end condition has been satisfied, and the drying operation is stopped to It is possible to appropriately discriminate the end timing of the operation and suppress overdrying and insufficient drying of the object to be dried.

  In short, according to the first characteristic configuration of the present invention, it is possible to provide a bathroom dryer that can appropriately determine the end timing of the drying operation.

In addition to the first feature configuration, the second feature configuration of the present invention includes:
The drying operation operating state is characterized in that the ventilation means, the circulation means, and the air heating means are operated from the start to the end of the drying operation to perform a hot air drying operation. To do.

That is, from the start to the end of the drying operation, the drying operation is executed in a form in which the ventilation means, the circulation means, and the air heating means are operated to perform the hot air drying operation.
In this way, since the drying operation is performed in the form in which the warm air drying operation is performed from the start to the end of the drying operation, the object to be dried can be dried as quickly as possible.

  In short, according to the second characteristic configuration of the present invention, it is possible to provide a bathroom dryer capable of drying an object to be dried as quickly as possible in addition to the operational effects of the first characteristic configuration described above.

In addition to the first feature configuration, the third feature configuration of the present invention includes:
From the start of the drying operation until the absolute humidity in the bathroom is in a stable state, the drying operation operating state is the initial stage of drying, and at the initial stage of drying and at the end of drying, the ventilation means, the circulation means, And a hot air drying operation for operating the air heating means is performed, and the ventilation means and the circulation means are operated and the air heating means is stopped in the middle drying stage between the initial stage of drying and the final stage of drying. It is characterized in that it is defined in the conditions for performing ventilation drying operation.

That is, at the initial stage of drying until the absolute humidity in the bathroom becomes stable and stable after starting the drying operation, the ventilation means, the circulation means, and the air heating means are operated to activate the warm air. The drying operation is executed in the form of performing the drying operation.
Then, in the middle drying stage between the initial drying stage and the final drying stage, the drying operation is executed in such a manner that a ventilation drying operation is performed in which the ventilation means and the circulation means are operated and the air heating means is stopped.

  Therefore, in the initial stage of drying from the start of the drying operation until the absolute humidity in the bathroom is inclined and stable, by performing the warm air drying operation, the initial drying of the object to be dried is performed accurately. Energy saving can be achieved by performing ventilation drying operation in the middle drying stage.Furthermore, in the final stage of drying, warm air drying operation can be used to finish the material to be dried to an appropriate drying state. Can do it.

  In short, according to the fourth feature configuration of the present invention, in addition to the operational effects of the first feature configuration described above, a bathroom dryer capable of finishing an object to be dried in an appropriate dry state while saving energy. Can be provided.

Schematic of bathroom drying system Longitudinal front view of bathroom dryer Front view of bathroom remote control Schematic showing the blowing state of drying air Figure showing the change in the amount of discharged water per unit time during standard operation Diagram showing changes in the amount of discharged water per unit time for speed operation Diagram showing changes in the amount of drainage per unit of energy-saving operation Table showing ventilation setting information for speed operation Table showing limit dehumidification amount setting information Table showing predicted hot air drying time setting information Table showing energy saving operation ventilation volume setting information Flow chart showing the control operation of the control means for the dryer

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
As shown in FIG. 1, a bathroom dryer A is provided on the ceiling of a bathroom Y, and a heat source device N that circulates and supplies a heat medium to the bathroom dryer A is provided outside the bathroom Y. A bathroom drying system that blows drying air from the dryer A and ventilates the bathroom is configured.
Incidentally, the bathroom dryer A also has a heating function, a ventilation function, a cool air function, and a mist ejection function, as will be described later.

Inside the bathroom Y, a bathroom remote controller 2 for instructing various information to the control means 1 for the dryer as a control means for controlling the operation of the bathroom dryer A is installed, and the operation of the heat source machine N is controlled. A heat source remote controller 4 for instructing various information to the control means 3 for the heat source apparatus is provided.
Although not illustrated, generally, the dressing room adjacent to the bathroom Y is also equipped with a dressing room remote controller configured similarly to the bathroom remote control 2.

The control means 1 for the dryer and the control means 3 for the heat source machine are connected so that various information can be freely communicated. For example, a drying operation command is commanded to the control means 1 for the dryer by the bathroom remote controller 2. Then, the control means 1 for the dryer communicates the heat medium request command to the control means 3 for the heat source machine, and when the control means 1 for the dryer stops the drying operation, The control means 1 is configured to communicate a heat medium unnecessary command to the control means 3 for the heat source machine.
When the heat medium request command is instructed, the control means 3 for the heat source machine performs a heat medium supply operation for circulatingly supplying the heated heat medium to the bathroom dryer A through the heat medium forward pipe 5 and the heat medium return pipe 6. When it is executed and a heat medium unnecessary command is instructed, the heat medium supply operation is stopped.

Although not described in detail, the heat source unit N has a function of supplying hot water to a general hot water tap or the like in addition to the function of circulating and supplying the heat medium, and an operation command is commanded by the remote controller 4 for the heat source unit. Sometimes, there is a hot water supply operation when there is a hot water supply request command.
Incidentally, the remote controller 4 for a heat source machine is usually installed in a kitchen or a washroom.

As shown in FIG. 2, the bathroom dryer A includes a main body casing 7 installed on the back side of the ceiling Ya of the bathroom Y and a grill plate 8 installed on the front side of the ceiling Ya of the bathroom Y.
Inside the main body casing 7, a circulation fan 9 as a circulation means for sucking air in the bathroom Y through a suction port K formed in the grill plate 8 and blowing the sucked air into the bathroom Y through the air passage S, The air heating heat exchanger 10 serves as an air heating means for heating the air ventilated by the circulation fan 9, and the ventilation fan serves as a ventilation means for sucking the air in the bathroom Y through the suction port K and discharging it to the outside. 11. A plurality of mist nozzles 13 for spraying hot water supplied through the water supply channel 12 into the bathroom Y in a mist shape, a heat exchanger 14 for mist for heating the hot water sprayed from the mist nozzles 13, and air blowing The movable louver 15 etc. which change the blowing direction of the air which blows off from the path S are equipped.

The air heating heat exchanger 10 includes a heat exchange portion 10A in a vertically oriented posture and a heat exchange portion 10B in a laterally leaning posture, and passes through a heat medium supply pipe 16 connected to the heat medium forward pipe 5 of the heat source unit N. The heat medium is supplied, and the heat medium after heat exchange is returned to the heat medium return pipe 6 connected to the heat source unit N through the heat medium discharge pipe 17.
The heat medium supply pipe 16 is provided with a heat valve 18 for intermittently supplying the heat medium, and the heat valve 18 is opened when the bathroom Y is heated or dried.

A mist supply pipe 16 </ b> A is branched from a location on the heat transfer medium supply pipe 16 that is closer to the installation side than the location of the thermal valve 18. The mist supply pipe 16A is connected to the heat medium discharge pipe 17 after passing through the mist heat exchanger 14 described above.
Further, the water supply channel 12 described above is piped so as to be connected to the mist nozzle 13 via the mist heat exchanger 14, and the hot water supplied to the mist nozzle 13 is transferred by the mist heat exchanger 14. It is configured to be heated.

After the water supply passage 12 passes through the mist heat exchanger 14, it is branched into two branch pipes 12A and 12B, one mist nozzle 13 is connected to one branch pipe 12A, and the other branch pipe 12B is connected to the other branch pipe 12B. Two mist nozzles 13 are connected.
The branch pipes 12A and 12B are provided with mist solenoid valves 19A and 19B. By selectively opening and closing the mist solenoid valves 19A and 19B, the mist ejection state from the three mist nozzles 13 is changed. It is configured to be adjustable.
The water supply passage 12 is provided with a water supply electromagnetic valve 20 for intermittently supplying water, and this water supply electromagnetic valve 20 is opened when performing a mist operation for ejecting mist from the mist nozzle 13.

  Incidentally, a drainage channel 21 is connected to a portion of the water supply channel 12 located between the heat exchanger 14 for mist and the branch point of the two branch pipes 12A and 12B, and a drainage electromagnetic valve 22 is connected to the drainage channel 21. For example, before starting the mist operation, by opening the drain electromagnetic valve 22 for a set time, it is possible to prevent cold hot water from being supplied to the mist nozzle 13 when the mist operation is started. become. In the figure, reference numeral 23 denotes a check valve.

  The mist supply pipe 16A is provided with an electromagnetic proportional valve 24 for adjusting the amount of heat medium supplied. The proportional valve 24 is opened to allow the heat medium to flow when performing a mist operation in which mist is ejected from the mist nozzle 13, and the temperature of the hot water supplied to the mist nozzle 13 reaches the target temperature. Thus, the opening degree is configured to be changed and adjusted.

The ventilation fan 11 sucks air through a ventilation passage T formed inside the main body casing 7, sucks air in the bathroom from the suction port K of the grill plate 8, and passes through an exhaust duct 25 extended to the outside. The sucked air is exhausted to the outside.
Incidentally, since the suction port K of the grill plate 8 is used for both the suction of air from the bathroom by the circulation fan 9 and the suction of air from the bathroom by the ventilation fan 11, the ventilation fan 11 will be described later. When the ventilation amount is changed, the circulation amount changes even if the circulation fan 9 is rotated at the same rotational speed.

As shown in FIG. 3, the bathroom remote controller 2 includes a display unit 26 for displaying various information, a mist switch 27 for instructing mist sauna operation, a timer setting switch 28 for changing and setting the operation time, and a movable louver. 15 a wind direction switch 29 for instructing a direction change, a drying switch 30 as a drying command means for instructing a drying operation, a heating switch 31 for instructing a heating operation for heating the bathroom Y, and a ventilation for instructing a ventilation operation by the ventilation fan 11 A switch 32, a cool air switch 33 for instructing a cool air operation by the circulation fan 9, and a stop switch 34 for instructing a stop command for stopping various operations are provided. Further, the bathroom remote controller 2 has a speed operation as a dry operation. Energy saving selection to select speed selection switch 30A to select and energy saving operation as drying operation Switch 30B is provided.
In addition, although not illustrated, the dressing room remote controller equipped in the dressing room is configured similarly to the bathroom remote controller 2.

Therefore, the bathroom dryer A according to the present embodiment is configured to perform a drying operation, a heating operation, a ventilation operation, a mist operation, and a cool air operation based on commands from the bathroom remote controller 2 and the dressing room remote controller.
That is, the control means 1 for the dryer performs the circulation fan 9, the ventilation fan 11, etc. to perform the drying operation, the heating operation, the ventilation operation, the mist operation, and the cool air operation based on the commands of the bathroom remote controller 2 and the dressing room remote controller. It is comprised so that the operation | movement of the apparatus may be controlled.

  Specifically, when a drying operation is commanded by the drying switch 30, basically, the circulation fan 9 is in a state where the heat medium from the heat source unit N is passed through the air heating heat exchanger 10. And by operating the ventilation fan 11, the air in the bathroom is sucked and discharged to the outside, and the air in the bathroom is sucked and heated to blow out to the drying target area E in the bathroom Y as drying air. The drying operation is performed in the wind drying operation mode.

  In other words, the drying operation includes a standard drying operation, a speed operation selected by the speed selection switch 30A, and an energy saving operation selected by the energy saving selection switch 30B. In the standard drying operation and the speed operation, drying is performed. From the start to the end of the operation, the above-described hot air drying operation is performed. In the energy saving operation, the above-described hot air drying operation is performed in the initial stage of drying and at the end of drying, and between the initial stage of drying and the final stage of drying. In the middle drying stage, a ventilation drying operation is performed in which the circulation fan 9 and the ventilation fan 11 are operated and the flow of the heat medium to the air heating heat exchanger 10 is stopped. It will be described later.

In addition, in the present embodiment, the above-described drying target area E is an area that is directly below the bathroom dryer A as shown in FIG. An object to be dried such as an object is placed in a posture suitable for drying.
That is, in the drying target region E, a pair of rod-shaped bodies B for supporting the object to be dried are provided between the opposing wall surfaces of the bathroom Y, and these rod-shaped bodies B support the object to be dried. become.
In addition, the rod-shaped body B is constructed with a support provided on the wall surface of the bathroom Y in a state in which both ends thereof are supported, and can be removed from the support and stored when not in use. Yes.

  Incidentally, the bathroom dryer A of the present embodiment operates the circulation fan 9 and the ventilation fan 11 in a state where the heat medium from the heat source unit N is passed through the air heating heat exchanger 10 as described above. In this embodiment, the heating with a ventilation function that sucks out the air in the bathroom and discharges it outside and sucks and heats the air in the bathroom and then blows it out into the bathroom as heating air. The means J is composed mainly of the circulation fan 9, the air heating heat exchanger 10, and the ventilation fan 11.

  When the heating operation is commanded by the heating switch 31, the circulation fan 9 is operated in a state where the ventilation fan 11 is stopped and the heat medium from the heat source unit N is passed through the heat exchanger 10 for air heating. Thus, the heating operation is performed in which the air in the bathroom is sucked and heated to be blown into the bathroom as heating air.

  When a ventilation operation is commanded by the ventilation switch 32, the circulation fan 9 is stopped and the ventilation fan 11 is operated in a state where the flow of the heat medium to the heat exchanger 10 for heating the air is stopped. A ventilation operation is performed in which the air inside is sucked and discharged to the outside.

  When the cool air operation is commanded by the cool air switch 33, the ventilation fan 11 is stopped, and the circulation fan 9 is operated in a state where the flow of the heat medium to the heat exchanger 10 for heating the air is stopped. A cool breeze operation is performed in which the air inside is sucked into the bathroom.

  When the mist sauna operation is commanded by the mist switch 27, the heat medium from the heat source unit N is made to flow through the mist heat exchanger 14 and the water supply electromagnetic valve 20 is opened, so Mist sauna operation that heats and squirts hot water is performed.

  As shown in FIGS. 1 and 4, the movable louver 15 described above is configured to be reciprocally swung around a rotation axis Z along the horizontal direction by an electric motor 35 for changing the direction. Yes, the rotation axis Z is configured to be in a direction parallel to the longitudinal direction of the rod-shaped body B installed in the drying target region E.

That is, the movable louver 15 is formed in a long cylindrical shape along the rotational axis direction, and is configured to blow out air over a wide range along the rotational axis direction.
And the electric motor 35 is arrange | positioned at the one end side of the movable louver 15, and the electric motor 35 changes the blowing direction of drying air into the several blowing direction as shown in FIG. It is configured as follows.
Accordingly, in the present embodiment, the blowing direction changing means F is configured by the movable louver 15 and the electric motor 35.

Moreover, in this embodiment, it demonstrates as what the blowing direction of the drying air is changed into the four blowing directions L4-L7. Of the four blowing directions L4 to L7, the direction of L6 is determined to go directly below, the direction of L5 is set to go to the lower left, and the direction of L4 is further left than the direction of L5. The direction of L7 is determined to face the lower right.
In the following description, the L6 direction is referred to as a directly downward direction, the L5 direction is referred to as a lower left direction, the L4 direction is referred to as a left direction, and the L7 direction is referred to as a lower right direction.

  The control means 1 for the dryer sequentially changes the direction of the movable louver 15 to the four blowing directions L4 to L7 when the direction change is instructed by the command of the wind direction switch 29 in the heating operation or the cool wind operation. Is configured to do.

The control means 1 for the dryer is configured to automatically adjust the direction of the movable louver 15 in the drying operation.
That is, when the start of the drying operation is instructed by the drying switch 30, the dryer control means 1 causes the drying air blowing direction to be directly downward in any of the standard drying operation, the speed operation, and the energy saving operation. The blowing direction initial setting process for changing the direction of the movable louver 15 is executed so as to be L6.

Then, in the standard operation and the energy saving operation, the state in which the blowing direction of the drying air is set to the direct downward direction L6 is maintained until the drying operation is finished thereafter.
Further, in the speed operation, the controller 1 for the dryer performs a blowing direction adjustment process for adjusting the blowing direction of the drying air in a direction in which the drying efficiency is improved, as will be described later, during the drying operation. It is configured.

  Incidentally, although not illustrated, the movable louver 15 is configured so that it can be operated in a lateral orientation (hereinafter abbreviated as a closed orientation) that closes the air passage S, and is a control means for a dryer. 1 is configured to switch the movable louver 15 to the closed position when the circulation fan 9 is not operated due to the end of the drying operation or the like.

As shown in FIG. 2, the humidity detection sensor 36 that detects the absolute humidity and the relative humidity of the air in the bathroom sucked through the suction port K of the grill plate 8 and the suction of the grill plate 8 inside the main body casing 7. A temperature sensor 37 is provided as temperature detecting means for detecting the temperature of the air in the bathroom sucked through the mouth K.
Incidentally, the humidity detection sensor 36 functions as bathroom humidity detection means for detecting the absolute humidity in the bathroom. As will be described later, the control means 1 for the dryer detects the detection value immediately after the start of the drying operation. In addition, since it is stored as the absolute humidity of the outside air that flows into the bathroom in accordance with the ventilation operation of the ventilation fan 11, it also functions as an outside air humidity detecting means.

  Next, the drying operation will be described. When the drying operation is instructed by the drying switch 30, the controller 1 for the dryer performs the ventilation function in the drying operation operating state determined as the operating state for the drying operation. The heating unit J is operated to perform the drying operation, and when the operation end condition is satisfied, the drying operation is stopped.

  Incidentally, in the present embodiment, as described above, since the drying operation includes the standard drying operation, the speed operation, and the energy saving operation, the ventilation operation is performed in the drying operation operating state determined corresponding to these operations. The function heating means J is operated to perform a drying operation.

Further, in the present embodiment, the controller 1 for the dryer is configured to sample the detected humidity (absolute humidity) of the humidity detection sensor 36 every set time (for example, 1 second) when the drying operation is started. Then, immediately after starting the drying operation, the detected humidity (absolute humidity) detected by the humidity detection sensor 36 and the detected temperature detected by the temperature sensor 37 are set to the initial detected humidity and the initial detected value. It is configured to store as temperature.
Further, the control means 1 for the dryer is configured to store the relative humidity detected by the humidity detection sensor 36 immediately after the start of the drying operation as the initial detected humidity.

By the way, the initial detected humidity (absolute humidity, relative humidity) indicates the humidity of the outside air (absolute humidity, relative humidity) that flows into the bathroom Y from the outside with ventilation when the dry operation is started. The temperature indicates the temperature of the outside air that flows into the bathroom Y from the outside with ventilation when the drying operation is started.
That is, the initial detected humidity (absolute humidity, relative humidity) corresponds to the absolute humidity and relative humidity of the outside air flowing into the bathroom with the ventilation operation of the ventilation fan 11, and the initial detected temperature is the ventilation operation of the ventilation fan 11. Accordingly, it corresponds to the temperature of the outside air flowing into the bathroom.

  Further, in the present embodiment, the determination that the operation end condition has been satisfied is that the humidity (absolute humidity) detected by the humidity detection sensor 36 tends to decrease after the controller 1 for the dryer starts the drying operation. From the detected humidity (absolute humidity) sampled every set time (for example, 1 second) from the time when the change in the setting time of the inclination indicating the decreasing tendency becomes within the setting range and the inclination is stable. Obtaining the integrated accumulated drainage amount SZ after the sum of the product of the humidity difference obtained by subtracting the initial humidity (absolute humidity) and the ventilation amount of the ventilation fan 11 (the ventilation amount within the sampling setting time) over time, When the post-stabilized integrated drainage amount SZ becomes the predicted remaining drainage amount WY, it is configured to determine that the operation end condition is satisfied, and details thereof will be described later.

In the following description, the point in time when the detected humidity (absolute humidity) of the humidity detection sensor 36 tends to decrease after the drying operation is started is referred to as a humidity decreasing tendency point HP, and the inclination setting indicating the decreasing tendency is set. A time when a change in time is within the set range and a stable slope state is described as a humidity drop stable point HD (see FIGS. 5 to 7).
Further, the product of the humidity difference obtained by subtracting the absolute humidity from the detected humidity (absolute humidity) sampled every set time (for example, 1 second) and the ventilation amount of the ventilation fan 11 (the ventilation amount within the sampling setting time) is calculated. In the following explanation, it is described as a unit time drainage amount.

  The control means 1 for the dryer executes a standard drying operation as a drying operation when the drying switch 30 is operated without operating the speed selection switch 30A or the energy saving selection switch 30B in the bathroom remote control 2 or the dressing room remote control. Then, after the speed selection switch 30A is operated, when the drying switch 30 is subsequently operated, the speed operation is executed as the drying operation, and after the energy saving selection switch 30B is operated, the drying switch 30 is subsequently operated. When operated, it is configured to execute an energy saving operation as a dry operation.

Incidentally, in the standard drying operation and the speed operation, it is not necessary to set the operation time of the drying operation, but in the energy saving operation, the operation time of the drying operation is set by the timer setting switch 28.
That is, in the energy saving operation, as described later, the operation time set by the timer setting switch 28 is used to determine the switching timing from the ventilation drying operation in the middle of drying to the hot air drying operation in the final drying stage. It is configured as follows. Even in this energy saving operation, the drying operation ends when the above-described operation end condition is satisfied.

  In the drying operation operating state of the standard drying operation and the speed operation, from the start to the end of the drying operation, the ventilation fan 11 and the circulation fan 9 are blown and the air heating heat exchanger 10 is heated to perform the hot air drying operation. Although it is determined to be performed, the operating conditions for the standard drying operation and the operating conditions for the speed operation are set to different conditions as will be described later.

  The drying operation state of the energy-saving operation is that the ventilation fan 11 and the circulation fan 9 are blown and the air heating heat exchanger 10 is heated to perform the warm air drying operation in the initial drying stage and the final drying stage. In the middle drying stage between the drying stage and the final stage of drying, the circulation fan 9 and the ventilation fan 11 are operated and the heating operation of the air heating heat exchanger 10 is stopped to perform the ventilation drying operation. The operating conditions in the hot air drying operation and the operating conditions in the ventilation drying operation are set as described later.

The circulation fan 9, the ventilation fan 11, and the operation state of the drying operation in the standard drying operation, that is, until the operation condition of the hot air drying operation that is executed until the drying operation starts and ends is completed. The conditions for operating the heat exchanger for air heating 10 in the same state are set.
In the present embodiment, the circulation fan 9 is rotated at, for example, 1300 times / min from the start to the end of the drying operation, and, for example, 3 L / min with respect to the air heating heat exchanger 10. The heat medium is allowed to flow at a flow rate of 1 mm, and the ventilation fan 11 is set to a condition for rotating at a rotation speed at which the ventilation amount is 1.5 m ³ , for example.

FIG. 5 shows changes with time of the unit time drainage amount when the drying operation is performed in the standard drying operation, J1 indicates a case where the amount of clothing drying is small, and J2 indicates the amount of clothing drying. This indicates the case where there are many.
In the standard drying operation, since the ventilation fan 11 is operated in the same state from the start to the end of the drying operation, FIG. 5 corresponds to a diagram showing a change in the absolute humidity of the bathroom Y over time. .

  The operating condition of the drying operation in the speed operation, that is, the operating condition of the hot air drying operation that is executed until the drying operation is started and ended is the drying operation for the circulation fan 9 and the heat exchanger 10 for air heating. The operation is performed in the same state from the start to the end, and for the ventilation fan 11, after the drying operation is started, until the detected humidity (absolute humidity) of the humidity detection sensor 36 reaches the humidity decrease stable point HD. The ventilation fan 11 is operated so that the initial ventilation amount is the same as the ventilation amount in the standard drying operation, and after the detected humidity (absolute humidity) of the humidity detection sensor 36 reaches the humidity decrease stable point HD, the ventilation fan 11 is operated. It is set to the condition to change the ventilation volume of air to the ventilation volume for speed driving.

  The determination that the detected humidity (absolute humidity) of the humidity detection sensor 36 has reached the point of humidity decrease tendency HP and the humidity decrease stable point HD will be described. The control means 1 for the dryer is as described above. After the drying operation is started, the humidity detected by the humidity detection sensor 36 is sampled every set time (for example, 1 second) until the drying operation is finished.

Then, the control means 1 for the dryer detects the detected humidity (absolute humidity) when the state in which the detected humidity sampled next is lower than the preset sampled humidity continues for a set time (for example, 3 seconds). ) Is determined to be the humidity decreasing tendency HP at which the decreasing tendency has occurred.
Thereafter, if the state in which the change in inclination indicating the decreasing tendency is within the set range continues for a set time (for example, 5 seconds), it is determined that the humidity decrease stable time point HD is in the stable slope state.
That is, obtaining the difference between the detected humidity sampled first and the detected humidity sampled next (hereinafter referred to as humidity difference) is repeated every time the detected humidity is sampled, and multiple humidity differences arranged in time series are obtained. When the state within the set range continues for the set time, it is determined that the tilt is stable.

The ventilation speed for speed operation includes the initial detection humidity (relative humidity) detected by the humidity detection sensor 36 and the initial detection temperature detected by the temperature sensor 37 immediately after the start of the drying operation, and the initial detection thereof. It is determined based on the speed operation ventilation amount setting information (see FIG. 8) indicating the relationship between the humidity and the initial detected humidity and the speed operation ventilation amount.
That is, the control means 1 for the dryer stores speed operation ventilation amount setting information in advance,
Based on the initial detected humidity (relative humidity) and the initial detected temperature, and the speed operation ventilation amount setting information, the speed operation ventilation amount is obtained.

In the present embodiment, as shown in FIG. 8, the speed operation ventilation amount setting information is divided into three stages of initial detected temperatures and three stages of initial detected humidity corresponding to each of the three stages. Thus, although the ventilation amount is set for each of the nine stages in total, the number of stages for dividing the initial detected temperature and the number of stages for dividing the initial detected humidity can be changed.
Moreover, in this embodiment, the case where relative humidity is used as the initial detected humidity is exemplified, but it is needless to say that absolute humidity may be used instead of relative humidity.

By the way, in the present embodiment, the circulating fan 9 is rotated at, for example, 1300 times / min until the operating condition of the hot air drying operation in the speed operation is started and finished, and the air heating is performed. For example, a heat medium is passed through the heat exchanger 10 at a flow rate of, for example, 3 L / min, and the ventilation fan 11 is initialized until the humidity lowering stable point HD is reached after the drying operation is started. As the ventilation rate, for example, the ventilation rate is set at a rotational speed at which the ventilation rate becomes 1.5 m ^3, and after the humidity drop stable time HD is reached, the rotation rate is set at the rotation rate that becomes the ventilation rate for speed driving. .

Further, the control means 1 for the dryer is configured to determine whether it is appropriate to change the ventilation amount of the ventilation fan 11 to the ventilation amount for speed operation.
That is, the control means 1 for the dryer detects the detected humidity of the humidity detection sensor 36 sampled every set time (for example, 1 second) before changing the ventilation amount of the ventilation fan 11 to the ventilation amount for speed operation. The product of the humidity difference obtained by subtracting the initial detected humidity (absolute humidity) from the absolute humidity and the ventilation amount of the ventilation fan 11 (the ventilation amount within the sampling set time) is obtained and stored.

Next, the ventilation amount of the ventilation fan 11 is changed to the ventilation amount for speed operation, and after that, it waits until set fixed time (for example, 2 minutes) passes. When the set time elapses, the absolute humidity at that time is obtained based on the detected humidity (absolute humidity) of the humidity detection sensor 36 sampled every set time (for example, 1 second).
Next, calculate the product of the humidity difference obtained by subtracting the initial detected humidity (absolute humidity) from the absolute humidity and the ventilation rate for speed operation, and then the product is changed before the ventilation rate is changed to the ventilation rate for speed operation. It is determined whether or not it is larger than the stored product, and when it is larger, it is maintained at the changed speed driving ventilation amount, and when it is not larger, it is configured to return to the ventilation amount before the change.

That is, even if the ventilation amount of the ventilation fan 11 is changed to the speed operation ventilation amount due to a difference in drying conditions such as a difference in an object to be dried, the drying efficiency may not necessarily increase. If the drying efficiency does not increase even if the airflow is changed to the speed driving ventilation amount, the reduction of the drying efficiency is suppressed by returning the ventilation amount of the ventilation fan 11 to the initial ventilation amount.
Note that the processing executed by the drying control means 1 to change the ventilation amount of the ventilation fan 11 to the speed operation ventilation amount as described above is referred to as speed operation ventilation amount change processing in the following description. Describe.

In addition, in the speed operation, the control means 1 for the dryer performs a blowing direction adjustment process for adjusting the blowing direction of the drying air in a direction in which the drying efficiency is improved during the drying operation as described above. become.
This blowing direction adjustment process is executed when the humidity decreasing tendency time HP is reached after starting the drying operation. First, in the state where the blowing direction of the dry air is directed to the downward direction L6, the setting is performed. Based on the detected humidity (absolute humidity) of the humidity detection sensor 36 sampled every time (for example, 1 second), the difference between the detected humidity sampled first and the next sampled detected humidity (hereinafter referred to as absolute humidity difference). (Abbreviation) is obtained and the absolute humidity difference is stored.

Next, the blowing direction of the drying air is changed from the directly downward direction L6 to the lower left direction L5, and then a standby is performed until a set fixed time (for example, 2 minutes) elapses, and the absolute humidity at that time is obtained.
And when the absolute humidity difference is smaller than the previously stored absolute humidity difference, the drying air is maintained in the blowing direction, and when the absolute humidity difference is not smaller than the previously stored absolute humidity difference. Then, the blowing direction of the drying air is returned to the downward direction L6.

After returning the blowing direction of the drying air to the direct downward direction L6, it waits until a set fixed time (for example, 2 minutes) elapses, and the absolute humidity at that time is obtained.
Next, the blowing direction of the drying air is changed from the directly downward direction L6 to the lower right direction L7, and then a standby is performed until a set fixed time (for example, 2 minutes) elapses, and the absolute humidity at that time is obtained.
And when the absolute humidity difference is smaller than the previously stored absolute humidity difference, the drying air is maintained in the blowing direction, and when the absolute humidity difference is not smaller than the previously stored absolute humidity difference. Then, the blowing direction of the drying air is returned to the downward direction L6.

That is, directing the drying air in the direction in which the absolute humidity difference is reduced can satisfactorily dry the entire object to be dried, so the drying air blowing direction is small in the absolute humidity difference. The blowing direction of the drying air is changed so as to be in the following direction.
That is, normally, when the blowing direction of the drying air is directed to the downward direction L6, the drying efficiency can be improved. However, the blowing direction of the drying air is changed by changing the drying method of the object to be dried. Since the drying efficiency may not always be improved when it is directed directly downward L6, the blowing direction of the drying air is adjusted.

By the way, when the humidity lowering tendency time point HP is reached, since the blowing direction adjustment process and the speed change ventilation amount changing process are executed, this embodiment first performs the blowing direction adjustment process, After the blow-out direction adjustment process is completed, a speed change ventilation amount change process is performed.
In contrast to the present embodiment, the speed operation ventilation amount changing process may be executed first, and then the blowing direction adjusting process may be executed thereafter.

  FIG. 6 shows a change with time of the unit time drainage amount when the drying operation is performed in the speed operation, J3 indicates a case where the speed operation is performed, and J4 indicates a standard drying operation. Shows the case.

  In energy-saving operation, use the predicted remaining waste water amount WY, which is obtained to determine that the operation termination condition of the drying operation is satisfied, for switching from the ventilation drying operation in the middle of the drying to the warm air drying operation in the final drying phase. Thus, the configuration for determining that the operation end condition is satisfied will be described first, and then the energy saving operation will be described.

  As described above, the controller 1 for the dryer samples the detected humidity (absolute humidity) of the humidity detection sensor 36 every set time (for example, 1 second) from the start of the drying operation to the end of the drying operation. Then, the humidity difference obtained by subtracting the initial detected humidity (absolute humidity) from the detected humidity (absolute humidity) sampled every set time (for example, 1 second) and the ventilation amount of the ventilation fan 11 (the above sampling setting) The product of the ventilation amount in time), that is, the integrated drainage amount SX obtained by integrating the unit time drainage amount with time, is continuously performed from the start of the drying operation to the end of the drying operation.

When the control means 1 for the dryer discriminates the humidity drop stable point HD, the humidity (absolute humidity) in the bathroom is detected by the humidity detection sensor 36 at the start of the drying operation with the inclination at that point. Assuming that the initial detected humidity (absolute humidity) decreases, the amount of drainage discharged from the bathroom Y while the humidity decreases to the initial humidity from the stable point of humidity decrease HD is determined, and the amount of drainage is determined as the predicted remaining drainage amount WY It is configured.
By the way, the amount of drainage discharged from the bathroom Y while decreasing to the initial detected humidity (absolute humidity) from the time when the tilt is stable is assumed to change from the absolute humidity of the bathroom Y to the initial detected humidity. The product of the humidity difference obtained by subtracting (absolute humidity) and the ventilation amount of the ventilation fan 11 can be obtained by integrating over time.

By the way, when determining the predicted residual drainage amount WY, a determination humidity is obtained by adding a set value to the initial humidity, and assuming that the humidity in the bathroom (absolute humidity) is reduced to the discrimination humidity, the predicted residual drainage amount WY is determined. You may do it.
In other words, even after the drying of the object to be dried, moisture tends to adhere to the wall surface of the bathroom Y, etc., so the humidity (absolute humidity) of the bathroom Y when the drying of the object to be dried ends is initial. The humidity may be slightly higher than the humidity. In such a case, the predicted residual drainage amount WY may be obtained on the assumption that the humidity in the bathroom (absolute humidity) is reduced to the determination humidity.

  Then, the control means 1 for the dryer ends the operation when the post-stabilized integrated drainage amount SZ obtained by accumulating the unit time drainage amount with the passage of time from the time when the humidity decrease stable point HD is determined becomes the predicted remaining drainage amount WY. It is configured to determine that the condition is satisfied.

  The post-stabilized integrated drainage amount SZ can be obtained by newly integrating the unit time drainage amount with the passage of time from the time when the humidity drop is stable, but the integrated drainage amount SX that has been integrated since the start of the drying operation. Is stored as the drained total drainage amount WL, and is stored when the humidity reduction stable point HD is reached from the accumulated drainage amount SX accumulated from the start of the drying operation. You may make it obtain | require in the form which subtracts the discharged | emitted total waste water amount.

  Further, in order to determine that the accumulated drainage amount SZ after stabilization has reached the predicted remaining drainage amount WZ, the accumulated drainage amount SX that has been accumulated since the start of the drying operation when the humidity decrease stable point HD is reached has been discharged. As the total drainage amount WL, a value obtained by adding the predicted remaining drainage amount WZ to the discharged total drainage amount WL is determined as the predicted target total drainage amount WP. Then, when the accumulated drainage amount SX accumulated from the start of the drying operation becomes the predicted target total drainage amount WP, it may be determined that the operation end condition is satisfied.

  As described above, the drying operation state of the energy saving operation is determined to be a state in which the warm air drying operation is performed in the initial drying stage and the final drying period, and the ventilation drying operation is performed in the middle drying period between the initial drying period and the final drying period. The control means 1 for the dryer performs switching from the initial drying stage to the middle drying stage, that is, switching from the hot air drying operation to the ventilation drying operation at the humidity decrease stable point HD. It is configured.

  Further, the control means 1 for the dryer switches from the mid-drying ventilation drying operation to the final drying hot air drying operation in the energy-saving operation, and the operation in which the elapsed time from the operation start is set by the timer setting switch 28. When the hot air drying switching time point TP that is earlier than the time by the predicted hot air drying time is reached, it is configured to perform (see FIG. 7).

  That is, the operation time set by the timer setting switch 28 includes the initial stage of drying from the start of drying to the humidity reduction stable point HD, the middle stage of drying from the humidity reduction stable point HD to the hot air drying switching point TP, and the predicted hot air. Corresponds to the value after adding the drying time.

  As shown in FIG. 10, the predicted hot air drying time is configured to be obtained from the predicted hot air drying time setting information indicating the relationship between the above-described predicted target total drainage amount WP and the limit dehumidification amount. As shown in FIG. 9, immediately after the start of the drying operation, the initial detection humidity (relative humidity) detected by the humidity detection sensor 36, the initial detection temperature detected by the temperature sensor 37, and these initial detections It is configured to be obtained based on limit dehumidification amount setting information indicating the relationship between the humidity and the initial detected humidity and the limit dehumidification amount.

That is, the control means 1 for the dryer stores the predicted hot air drying time setting information and the limit dehumidification amount setting information in advance, and the initial detected humidity and initial detected temperature and the predicted hot air drying time setting. The estimated hot air drying time is obtained based on the information and the limit dehumidification amount setting information, and the hot air drying switching time point TP is obtained based on the obtained predicted hot air drying time and the operation time set by the timer setting switch 28. Is configured to ask for.
Incidentally, the initial detected humidity (relative humidity) indicates the humidity of the outside air that flows into the bathroom Y from the outside along with ventilation when performing the drying operation. Similarly, the initial detected temperature is the ventilation when performing the drying operation. Accordingly, the temperature of the outside air flowing into the bathroom Y from the outside is indicated.

  In the present embodiment, as shown in FIG. 9, the limit dehumidification amount setting information divides the initial detected temperature into three stages and divides the initial detected humidity into three stages corresponding to each of the three stages. The limit dehumidification amount is set for each of the nine stages in total, but the number of stages for dividing the initial detected temperature and the number of stages for dividing the initial detected humidity can be variously changed.

Further, in setting the limit dehumidification amount setting information, in the present embodiment, the case where relative humidity is used as the initial detected humidity is exemplified, but it is needless to say that absolute humidity may be used instead of relative humidity. is there.
In FIG. 9, the absolute humidity and the saturated water vapor amount for each section are shown for reference, but it is not necessary to store these pieces of information in the control means 1 for the dryer.
In FIG. 9, absolute humidity g / kg corresponding to an initial detected humidity of 40 to 60% describes a value corresponding to an initial detected temperature of 17.5 ° C. and an initial detected humidity of 50%.

  In this embodiment, as shown in FIG. 10, the predicted hot air drying time setting information is obtained by dividing the predicted target total drainage amount WP into three levels and predicting the total target dehumidification amount for each of the nine levels of dehumidification amounts. The case of setting the predicted hot air drying time for each of the cases where the amount of waste water WP is different in three stages is exemplified, but the number of stages for classifying the target total waste water quantity WP can be variously changed, and the stage of the limit dehumidification amount The number can be changed in various ways.

The warm air drying operation in the initial stage of the energy-saving operation is configured to operate the ventilation fan 11 and the circulation fan 9 through the air and to heat the air heating heat exchanger 10 under the same conditions as the standard drying operation described above. Yes.
That is, in the present embodiment, the operating condition of the warm air drying operation at the initial stage of drying in the energy saving operation is such that the circulation fan 9 is rotated at, for example, 1300 times / minute, and the air heating heat exchanger 10 is For example, the heat medium is allowed to flow at a flow rate of 3 L / min, and the ventilation fan 11 is set to rotate at a rotational speed at which the ventilation amount is 1.5 m ³ , for example.

  In addition, the operating condition of the ventilation drying operation in the energy saving operation is set to the condition that the circulation fan 9 is operated in the same state as the warm air drying operation in the initial stage of drying, and the ventilation amount of the ventilation fan 11 is changed to the energy saving operation ventilation amount. Has been.

The energy-saving operation ventilation amount includes the initial detection humidity (relative humidity) detected by the humidity detection sensor 36 and the initial detection temperature detected by the temperature sensor 37 immediately after starting the drying operation, and the initial detection humidity. In addition, it is determined based on the energy saving operation ventilation amount setting information (see FIG. 11) indicating the relationship between the initial detected humidity and the energy saving operation ventilation amount.
That is, the control means 1 for the dryer stores the energy saving operation ventilation amount setting information in advance, and based on the initial detected humidity (relative humidity) and the initial detected temperature, and the energy saving operation ventilation amount setting information, The energy-saving operation ventilation amount is changed and the ventilation amount change process for energy-saving operation is performed so that the ventilation amount of the ventilation fan becomes the energy-saving operation ventilation amount when performing ventilation drying.
Incidentally, the initial detected temperature (relative humidity) indicates the humidity of the outside air that flows into the bathroom Y from the outside with ventilation when performing the drying operation. Similarly, the initial detected temperature is the ventilation when performing the drying operation. Accordingly, the temperature of the outside air flowing into the bathroom Y from the outside is indicated.

In this embodiment, as shown in FIG. 11, the energy-saving operation ventilation volume setting information is divided into three stages of initial detected temperatures and three stages of initial detected humidity corresponding to each of the three stages. Thus, although the ventilation amount is set for each of the nine stages in total, the number of stages for dividing the initial detected temperature and the number of stages for dividing the initial detected humidity can be changed.
Moreover, in this embodiment, the case where relative humidity is used as the initial detected humidity is exemplified, but it is needless to say that absolute humidity may be used instead of relative humidity.

The warm-air drying operation at the end of drying in the energy-saving operation is the same as the standard drying operation described above, in which the circulation fan 9 is operated for ventilation and the air heating heat exchanger 10 is heated, and the ventilation fan 11 is operated for ventilation-drying operation. It is configured to operate under the same conditions.
That is, in this embodiment, the operating condition of the hot air drying operation at the end of drying in the energy-saving operation is such that the circulation fan 9 is rotated at, for example, 1300 times / minute, and the air heating heat exchanger 10 is For example, the heat medium is allowed to flow at a flow rate of 3 L / min, and the ventilation fan 11 is set to rotate at a rotation speed at which the ventilation amount becomes the ventilation amount for energy saving operation.

  FIG. 7 shows the change with time of the unit time drainage amount when the drying operation is performed in the energy saving operation, J5 indicates the case where the speed operation is performed, and J6 performs the standard drying operation. Shows the case.

Next, the control operation of the control means 1 for the dryer in the drying operation will be described based on the flowchart of FIG.
When a drying operation is commanded by the drying switch 45, first, a drying operation start process is executed (# 1).
In this drying operation start process, the movable louver 15 is swung from the closed position so that the blowing direction of the drying air is directly below L6, the circulation fan 9 and the ventilation fan 11 are operated, and the control means 3 for the heat source machine. The heat medium request command is communicated to and the thermal valve 18 is opened to operate.
In this drying operation start process, as is apparent from the above description, the heating means with ventilation function J is operated in the same state in any of the standard drying operation, the speed operation, and the energy saving operation.

When this drying operation start process is started, the detected humidity (absolute humidity, relative humidity) detected by the humidity detection sensor 36 is stored as the initial detected humidity, and similarly detected by the temperature sensor 37. The detected temperature is stored as the initial detected temperature.
Further, when the drying operation start process is started, sampling of the detected humidity (absolute humidity) of the humidity detection sensor 36 is started every set time (for example, 1 second), and the set time (for example, 1 second). The humidity difference obtained by subtracting the initial detected humidity (absolute humidity) from the detected humidity (absolute humidity) sampled every time is obtained, and the product of the humidity difference and the ventilation amount of the ventilation fan 11 (the ventilation amount within the sampling set time) ( It starts to obtain an integrated drainage amount SX obtained by integrating the unit time drainage amount with the passage of time.

Next, it is determined whether or not the predicted target total drainage amount WP has been set (# 2). If it has not been set, it is determined whether or not the humidity reduction stable point HD is reached (# 4), and the humidity reduction is stable. When it is time point HD, the predicted remaining drainage amount WY is obtained, and the predicted remaining drainage amount WY and the target total drainage amount WP are set (# 5).
As described above, the predicted target total drainage amount WP is obtained as the sum of the discharged total drainage amount WL and the predicted remaining drainage amount WY.

  When it is determined at # 4 that it is not the humidity drop stable point HD, it is determined whether or not a stop command is issued by the stop switch 34 of the bathroom remote controller 2 or the dressing room remote controller (# 15). If instructed, stop processing for stopping the heating means with ventilation function J is executed (# 16). If no stop command is instructed, the processing from # 2 is repeated.

  After setting the predicted remaining drainage amount WY and the predicted target total drainage amount WP in # 5, it is determined whether or not the currently running drying operation is a speed operation (# 6), and then the speed operation is performed. In this case, the blowing direction adjustment process (# 7) described above and the speed operation ventilation amount setting process (# 8) described above are sequentially executed.

When it is determined in # 6 that the speed operation is not performed, it is determined whether or not the current dry operation is an energy saving operation (# 9), and in the case of the energy saving operation, the operation is switched to the ventilation drying operation. Therefore, the thermal valve 18 is closed, and the process of stopping the flow of the heat medium to the air heating heat exchanger 10 is executed (# 10).
Subsequently, based on the initial detected humidity (relative humidity), the initial detected temperature, and the energy saving operation ventilation amount setting information, the energy saving operation ventilation amount is obtained so that the ventilation amount of the ventilation fan 11 becomes the energy saving operation ventilation amount. Then, a ventilation amount changing process for energy saving operation for adjusting the rotation speed of the ventilation fan 11 is executed (# 11).

  Thereafter, it is determined whether or not it is the hot air drying switching time point TP (# 12). If it is the hot air drying switching time point TP, the thermal valve 18 is set to switch to the hot air drying operation at the end of drying. The process of opening and starting the flow of the heat medium to the air heating heat exchanger 10 is executed (# 13).

If it is determined in # 9 that the energy saving operation is not performed, the currently executed drying operation is the standard drying operation.
In this standard drying operation, the circulation fan 9, the ventilation fan 11, and the air heating heat exchanger 10, that is, the heating means with ventilation function J are continuously operated in the same operation state from the start to the end of the drying operation. It is something to be made.
Therefore, when it is determined in # 9 that the energy saving operation is not performed, it is immediately determined whether or not the operation is finished (# 14).

  In addition, when the drying operation is the speed operation, even after the blow direction adjustment process (# 7) and the speed operation ventilation amount setting process (# 8) are sequentially executed, the process proceeds to the determination of the operation end of # 14. In addition, when the drying operation is an energy saving operation, when it is determined that it is not the hot air drying switching time point TP in # 12, or after the processing for starting the flow of the heat medium is executed in # 13 Will shift to the determination of the end of the operation of # 14.

The determination of the end of the operation of # 14 is a process of determining that the operation is completed when the post-stabilized integrated drainage amount SZ reaches the predicted remaining drainage amount WY, and if it is determined that the operation is ended, the process proceeds to a stop process of # 16 Will do.
If it is determined that the operation has not ended, the process proceeds to # 15, and as described above, the process of determining whether or not a stop command is instructed by the stop switch 34 is executed, and the stop command is instructed. In this case, the stop process is executed (# 16), and if the stop command is not instructed, the process from # 2 is repeated.

  When it is determined in # 2 that the predicted target total drainage amount WP has been set, it is determined whether or not the currently running drying operation is an energy saving operation (# 3). The process shifts to # 12 to execute a process for determining whether or not it is the hot air drying switching time point TP. If it is not the energy saving operation, the process shifts to # 14 to determine whether or not the operation is finished. Processing will be executed.

  In short, the control means 1 for the dryer performs standard drying operation, speed operation, and energy-saving operation as the drying operation. In any operation, the post-stable accumulated drainage amount SZ is the predicted remaining drainage amount. When it becomes WY, the drying operation is stopped.

  Further, the control means 1 for the dryer performs the blowing direction adjustment process and the speed operation ventilation amount change process in the speed operation when the humidity decrease stable point HD is reached, thereby improving the drying efficiency. .

  Further, in the energy saving operation, the control means 1 for the dryer switches from the hot air drying operation to the ventilation drying operation when the humidity lowering stable time HD is reached, and when the hot air drying switching time TP is reached, changes from the ventilation drying operation to the warm air. Switching to dry operation, and when switching from warm air drying operation to ventilation drying operation, the ventilation rate of the ventilation fan 11 is changed to the ventilation rate for energy saving operation to improve the drying efficiency. become.

[Another embodiment]
Hereinafter, other embodiments are listed.
(1) In the above embodiment, the case where the present invention is applied to a bathroom dryer having a mist ejection function has been exemplified. However, the present invention may be applied to a bathroom dryer that does not have a mist ejection function. Of course it is good.

(2) In the above embodiment, the case where the heating means with ventilation function is installed on the ceiling of the bathroom is exemplified, but the heating means with ventilation function may be installed on the side wall of the bathroom or the like. .

(3) In the above-described embodiment, the air-conditioning heater in which the heat medium is circulated is exemplified as the air heating unit. However, the air heating unit may be an electric heater provided with an electric heater.

(4) In the above embodiment, the case where the circulation amount of the circulation means and the heating amount of the air heating means are not changed is exemplified as the drying operation operating state, but the circulation amount of the circulation means and the heating amount of the air heating means are changed. You may implement in the form which sets a dry driving | running operation state to a form.

(5) In the above embodiment, the case where the rotational speed of the ventilation fan is changed when changing the ventilation amount of the ventilation means is exemplified. However, for example, the opening degree is changed to an exhaust path for discharging air from the bathroom. A damper may be provided, and the ventilation amount may be adjusted by adjusting the damper.

(6) In the above embodiment, the case where the bathroom temperature detecting means detects the temperature of the air in the bathroom sucked by the circulation fan is exemplified. For example, a temperature sensor is provided in the bathroom remote controller, and the temperature sensor You may implement in the form which uses the value of as a bathroom temperature.

(7) In the above embodiment, the case where the humidity detecting means detects the humidity of the air in the bathroom sucked by the circulation fan is exemplified. For example, a humidity sensor is provided in the bathroom remote controller, and the humidity sensor You may implement with the form which makes a value a bathroom humidity.

(8) In the above embodiment, immediately after starting the drying operation, the detected humidity of the bathroom humidity detecting means for detecting the absolute humidity in the bathroom is the absolute humidity of the outside air flowing into the bathroom as the ventilation means is ventilated. As an example, the bathroom humidity detection means is also used as an outside air humidity detection means for detecting the absolute humidity of the outside air flowing into the bathroom with the ventilation operation of the ventilation means by storing it in the control means. A sensor that detects the absolute humidity of the outside air may be provided outside, and the outside air humidity detecting means may be configured by the sensor.

(9) In the above embodiment, the case where the suction port of the ventilation unit and the suction port of the circulation unit are combined is illustrated, but the suction port of the ventilation unit and the suction port of the circulation unit are formed separately. You may implement with the form.

DESCRIPTION OF SYMBOLS 1 Control means 9 Circulation means 10 Air heating means 11 Ventilation means 36 Bathroom humidity detection means J Heating means with ventilation function SZ Accumulated drainage after stabilization WY Predicted residual drainage Y Bathroom

Claims (3)

Ventilation means for sucking air in the bathroom and discharging it to the outside, circulation means for sucking the air in the bathroom and blowing the air into the bathroom, and air for heating the air ventilated in the circulation means Heating means with ventilation function provided with heating means;
Control means for controlling the operation of the heating means with ventilation function is provided,
When the control means is instructed to start the drying operation, the heating means with ventilation function is operated to perform the drying operation in the drying operation operating state determined as the operating state for the drying operation, and the operation is completed. A bathroom dryer configured to stop the drying operation when a condition is met,
An outside air humidity detecting means for detecting the absolute humidity of the outside air flowing into the bathroom with the ventilation operation of the ventilation means, and a bathroom humidity detecting means for detecting the absolute humidity in the bathroom are provided,
The control means is
After the drying operation is started, the detected humidity of the bathroom humidity detecting means tends to decrease, and the change within the setting time of the inclination indicating the decreasing tendency is in the inclination stable state within the setting range. Determining the accumulated drainage amount after stabilization by multiplying the product of the humidity difference obtained by subtracting the detected humidity of the outside air humidity detecting means from the detected humidity of the bathroom humidity detecting means and the ventilation amount of the ventilating means over time. When the accumulated drainage amount after the stabilization becomes the predicted remaining drainage amount, it is configured to determine that the operation end condition is satisfied, and
When the absolute humidity in the bathroom decreases to the outside humidity detected by the outside air humidity detecting means or the humidity for determination obtained by adding a set value to the outside air humidity by the slope when the tilt is stable. Assuming that the slope is in a stable state, the amount of drainage discharged from the bathroom while the absolute humidity in the bathroom is reduced to the outside air humidity or the discrimination humidity is obtained, and the amount of drainage is predicted. A bathroom dryer configured to determine the amount of residual wastewater.   2. The drying operation operating state is defined as a condition in which a warm air drying operation is performed by operating the ventilation unit, the circulation unit, and the air heating unit from the start to the end of the drying operation. Bathroom dryer.   The drying operation operating state is from the start of the drying operation until the tilt stable state is set as the initial stage of drying, and in the initial drying stage and the final drying stage, the ventilation means, the circulation means, and the air heating means A condition of performing a ventilation drying operation in which the ventilation means and the circulation means are operated and the air heating means is stopped in a middle drying period between the initial stage of drying and the final stage of drying. The bathroom dryer according to claim 1, which is defined in claim 1.

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