JP7294953B2 - bathroom air conditioning system - Google Patents

Description

The present invention relates to a bathroom air conditioning system that adjusts the bath room temperature to a target temperature.

Conventionally, this type of bathroom air-conditioning system includes a heat source that heats the air, a blowing means that draws in the air in the bathroom and blows out the air heated by the heat source into the bathroom, a bath room temperature detecting means that detects the bath room temperature, and a bath room temperature detecting means. When the detected bath room temperature detected by the means is equal to or lower than the heating start threshold, a heating operation is performed to adjust the bath room temperature to a target temperature. (See Patent Document 1, for example).

The bathroom air conditioning system described in Patent Document 1 is a bathroom heating system, but it also adopts a system that cools air as a heat source, and sets a cooling start threshold value, which is a reference value for starting cooling operation of the air conditioner, in the control means, It is also possible to construct a bathroom air conditioning system by enabling cooling control when the detected room temperature is equal to or higher than the cooling start threshold.

JP-A-2003-269735

The heating start threshold or cooling start threshold used for the air conditioning control of the bathroom air conditioning system is determined based on changes in the annual temperature, etc., and the heating start threshold or cooling start threshold can be selected according to the season. Yes, but the heating start threshold or cooling start threshold itself is a fixed value and cannot be changed. In other words, the bathroom air conditioning system is suitable for everyone. However, not only does the sensible temperature differ for each user, but even for the same user, it may change depending on the physical condition of the user. Realization is desired.

In view of the above points, it is an object of the present invention to provide a bathroom air-conditioning system that can also perform air-conditioning control according to user's preference.

In order to solve the above problems, the present invention provides a bathroom air conditioning system for adjusting the bath room temperature to a target temperature, comprising a heat source that heats or cools the air, and the air that is drawn in from the bathroom and heated or cooled by the heat source. When the detected bath room temperature detected by the air blowing means for blowing into the bathroom, the bath room temperature detection means for detecting the bath room temperature, and the bath room temperature detection means is equal to or lower than the heating start threshold or the cooling start threshold or higher, either heating operation or cooling operation is performed. On the other hand, in an air conditioner equipped with a control means capable of performing air conditioning operation and adjusting the bath room temperature to a target temperature, the start and stop of the air conditioning operation by the air conditioner can be manually operated. While the control means executes air conditioning control and the air conditioner is performing air conditioning operation based on the determination that the detected bath room temperature is equal to or lower than the heating start threshold or the cooling start threshold or higher, When the air conditioning operation is stopped by manual operation of the operation switch, the control means changes and updates any one of the heating start threshold value, the cooling start threshold value and the target temperature.

According to the present invention, for example, when the user feels that the inside of the bathroom is hot or cold, the operation switch can be manually operated to stop the air conditioning operation, and the operation switch can be manually operated at this time to control. Since the means changes and updates any one of the heating start threshold, the cooling start threshold, or the target temperature, automatic air conditioning control of the air conditioner according to the user's preference can be performed the next time the user takes a bath.

Further, in the present invention, there is provided an indoor state detecting means for detecting states in the bathroom including detection of entering and leaving the bathroom, and the control means determines whether or not the user is taking a bath based on the detection result of the indoor state detecting means. The control means changes the heating start threshold value or the cooling start threshold value when the air conditioning operation is stopped by manual operation of the operation switch before determining that the user is taking a bath. It is desirable to update Before it is determined to be bathing, for example, the user may be outside the bathroom, or may have simply entered the bathroom for a purpose other than bathing. However, in either case, the fact that the air-conditioning operation is stopped by manual operation is considered to mean that the user has judged that there is no need to start the air-conditioning operation at that time. Therefore, in those cases, by changing and updating the heating start threshold value or the cooling start threshold value, automatic air conditioning control of the air conditioner according to the user's preference can be performed the next time the user takes a bath.

Further, in the present invention, there is provided an indoor state detecting means for detecting states in the bathroom including detection of entering and leaving the bathroom, and the control means determines whether or not the user is taking a bath based on the detection result of the indoor state detecting means. It is desirable that the control means change and update the target temperature when the air conditioning operation is stopped by manual operation of the operation switch after determining that the user is taking a bath. If the air-conditioning operation is stopped by manual operation after it is determined that the user is taking a bath, it is considered that the bath room temperature has already reached the temperature desired by the user at that time. Therefore, in such a case, by changing and updating the target temperature, it becomes possible to perform automatic air conditioning control of the air conditioner according to the user's preference when taking a bath next time. In addition, by changing/updating the heating start threshold value or the cooling start threshold value and changing/updating the target temperature by the above-described control means, the next time bathing can be performed according to the user's preference. automatic control of the air conditioner becomes possible.

1 is a schematic configuration diagram showing a bathroom heating system that is an embodiment of the bathroom air conditioning system of the present invention; FIG. FIG. 2 is a flowchart showing air conditioning control executed by control means shown in FIG. 1; FIG. A flow chart showing one form of bathing detection in the air conditioning control shown in FIG.

A bathroom heating system 1, which is an embodiment of the air conditioning system of the present invention, will be described below with reference to FIG. A bathroom heating system 1 includes a hot water supply device 2 capable of performing a hot water filling operation for generating hot water and supplying hot water to a bathtub BT installed in a bathroom BR, and an air conditioner 3 capable of performing a heating operation for heating the bathroom BR. and

The hot water supply device 2 employs a gas hot water heater, which is a type of heat source installed outside (outdoors, etc.) of the bathroom BR. Tap water and fuel gas are supplied to the hot water supply device 2 through a water supply pipe 41 and a gas supply pipe 42, respectively. , various pipes, various valves, various sensors, hot water supply control means 21, and the like. Between the hot water supply device 2 and the bathtub BT, there is interposed a first feed pipe 43 that supplies the hot water generated by the hot water supply device 2 to the bathtub BT. Between the hot water supply device 2 and the air conditioner 3, a second feed pipe 44 for supplying a part of the hot water generated by the hot water supply device 2 to the air conditioner 3, and a hot water after heat exchange in the air conditioner 3. A return pipe 45 for recovering the hot water supply device 2 is interposed.

The air conditioner 3 is installed on the ceiling of the bathroom BR, and has an inlet, an outlet, and a ventilation port (not shown). Both the inlet and the outlet face the inside of the bathroom BR, and the ventilation port is open to the outside. The air conditioner 3 sucks air from the bathroom BR, the hot water coil 31 as a heat source through which part of the hot water generated by the hot water heater 2 flows, and blows the sucked air from the bathroom BR to the bathroom BR. Blowing means 32 such as a blowing fan, and ventilation means such as a fan for exchanging the air in the bathroom BR by exhausting the air in the bathroom BR to the outside through the ventilation port and introducing the air outside the bathroom BR into the bathroom BR along with this exhaust. 33, air conditioning control means 34, infrared light receiving/emitting means 35, and the like. During the heating operation, the air conditioner 3 circulates the hot water supplied from the hot water supply device 2 through the second supply pipe 44 and the return pipe 45 inside the hot water coil 31, and sucks it from the suction port by the operation of the air blowing means 32. After the hot air in the bathroom BR is heated by the hot water coil 31, the warm air is blown out from the outlet to the bathroom BR. In addition to the heating operation, the air conditioner 3 can perform a ventilation operation, etc., in which the air in the bathroom BR is exchanged with air outside the bathroom by means of the ventilation means 33 . Here, the ventilation operation includes a drying operation of exchanging air in the bathroom BR while heating the bathroom BR.

A dressing room remote controller 36 for manually operating the air conditioner 3 is installed on the inner wall surface of the dressing room adjacent to the bathroom BR. The dressing room remote controller 36 includes a display screen for displaying the operation status, etc., and various switches for manually starting, stopping, or adjusting each operation of the air conditioner 3 (not shown). Further, the dressing room remote controller 36 is connected to the air conditioner 3 by wire, and an input signal by manual operation of the switch is inputted to the air conditioning control means 34 of the air conditioner 3 by wire communication.

The hot water supply control means 21 and the air conditioning control means 34 are both composed of a microcomputer having a CPU, a ROM, a RAM, an A/D converter, an interface, and the like. The corresponding program is pre-installed.

The bathroom heating system 1 also includes a bathroom remote controller 5 installed on the inner wall surface of the bathroom BR and a kitchen remote controller 6 installed on the inner wall surface of the kitchen. Both the bathroom remote controller 5 and the kitchen remote controller 6 have display screens 51 and 61 that display the set temperature of the hot water and the current time, etc., and the operation of the water heater 2 and the air conditioner 3 can be started or stopped by the user's manual operation. , or various switches 52, 62 for adjustment. Among these switches 52, 62 are power switches 52a, 62a for starting or stopping power supply to the water heater 2 and the air conditioner 3, an automatic hot water filling switch 52b for causing the water heater 2 to fill the bathtub BT with hot water, 62b, automatic heating switches 52c, 62c for automatically executing the heating operation of the air conditioner 3, and operation switches 52d, 62d for forcibly starting or stopping the heating operation of the air conditioner 3 are provided.

The bathroom remote controller 5 and the kitchen remote controller 6 are interlocked with each other, and the power switches 52a, 62a, the automatic hot water filling switches 52b, 62b, the automatic heating switches 52c, 62c, and the operation switches 52d, 62d are either the bathroom remote controller 5 or the kitchen remote controller 6. On the other hand, when manually operated by the user, both the bathroom remote controller 5 and the kitchen remote controller 6 are simultaneously operated. The bathroom remote controller 5 and the kitchen remote controller 6 are connected to the hot water supply apparatus 2 by wire, and input signals generated by manual operation of the power switches 52a and 62a and the automatic hot water filling switches 52b and 62b are transmitted to the hot water supply control means 21 by wire communication.

Further, the bathroom remote controller 5 is provided with an infrared light receiving/emitting means 53 capable of bidirectionally transmitting/receiving infrared rays with the infrared light receiving/emitting means 35 of the air conditioner 3 . When the power switches 52a, 62a, the automatic heating switches 52c, 62c, and the operation switches 52d, 62d are manually operated, an input signal corresponding to the contents of the operation is transmitted from the infrared light receiving/emitting means 53 to the infrared light emitting/receiving means 35 by wireless communication. be. Information signals regarding the maximum heating capacity of the air conditioner 3 and the like are transmitted from the infrared light emitting/receiving means 35 to the infrared light emitting/receiving means 53 by wireless communication. Furthermore, the bathroom remote controller 5 is provided with a temperature sensor 54 as bath room temperature detection means for detecting the bath room temperature of the bathroom BR and a humidity sensor 55 for detecting the humidity of the bathroom BR.

The bathroom heating system 1 includes a control means 7 for controlling each operation of the hot water supply device 2 and the air conditioning device 3 , and the control means 7 is built in the bathroom remote control 5 . Similarly to the hot water supply control means 21 and the air conditioning control means 34, the control means 7 is also composed of a microcomputer including a CPU, ROM, RAM, A/D converter, interface, etc. The program corresponding to the control of is installed in advance.

The control means 7 executes air conditioning control for controlling the heating operation (air conditioning operation) of the air conditioner 3 . The air conditioning control executed by the control means 7 is such that when the detected bath room temperature of the bathroom BR detected by the temperature sensor 54 is equal to or lower than the heating start threshold, the air conditioner 3 is operated for heating to adjust the bath room temperature to the target temperature. be. To enable execution of this air conditioning control, the control means 7 stores a preset target bath room temperature and heating start threshold. The target temperature is set at a temperature at which it is estimated that the majority of users who enter the bathroom BR for bathing will not feel a cold sensation, but as described above, the sensible temperature of each user and even the same person differs. Therefore, the setting can be changed in units of, for example, 1° C. or more according to the user's preference. On the other hand, the heating start threshold is set in advance as a reference temperature estimated at which the majority of users who enter the bathroom BR when bathing will feel a cold sensation, based on totaling annual changes in the bath room temperature when the heating operation is not performed. . For example, the temperature is set as 10° C. and 15° C. in 5° C. increments. However, in the bathroom heating system 1, unlike the above-described conventional heating system, the heating start threshold value stored in the control means 7 can also be changed in units of, for example, 1°C according to the user's preference. ing.

Moreover, the bathroom heating system 1 is also provided with a human sensor 8. - 特許庁A human detection sensor 8 is installed on the ceiling of the bathroom BR near the bathroom door, and detects the entrance and exit of the user to the bathroom BR. The human sensor 8 is connected to the control means 7 by wire, and outputs a detection signal indicating that a user has entered or exited the room to the control means 7 . Various sensors such as an infrared sensor and an ultrasonic sensor can be used for the human sensor 8 . In the bathroom heating system 1, the human sensor 8, or the human sensor 8 and the humidity sensor 55 constitute indoor state detection means.

Next, with reference to FIG. 2, air conditioning control executed by the control means 7 of the bathroom heating system 1 will be described. When one of the power switches 52a and 62a shown in FIG. 1 is manually turned on by the user, power is supplied to the hot water supply device 2 and the air conditioning device 3 via the hot water supply control means 21 and the air conditioning control means 34, Both devices 2 and 3 are in a standby state.

After that, when one of the automatic heating switches 52c and 62c is manually turned on by the user (STEP 1), the air conditioner 3 enters the automatic heating mode, and the bathing start estimated time is set to the bathroom remote controller 5 and the kitchen remote controller 6. is displayed on the display screens 51 and 61 of . The automatic heating mode continues unless either one of the automatic heating switches 52c, 62c is turned off by the user's manual operation. In this automatic heating mode, the control means 7 automatically executes the air conditioning control of the bathroom BR at the execution start time of the air conditioning control which is set and stored based on the estimated bathing start time. Here, the estimated bathing start time means that the control means 7 stores and acquires the bathing start time over a predetermined period of one day or more, and performs statistical processing such as calculation of an average value on the acquired bathing start time. is the time estimated by Therefore, the air conditioning control in the automatic heating mode may not be executed for bathing on the first day after installing the bathroom heating system 1 . However, if the scheduled bathing start time can be set and stored in the control means 7, the scheduled bathing start time is regarded as the estimated bathing start time on the first day, and the air conditioning control in the pseudo automatic heating mode is performed. It is viable. If either one of the automatic heating switches 52c and 62c is not turned on, the air conditioner 3 will not enter the automatic heating mode, and the user must manually operate the switch on the dressing room remote control 36 to start and stop the heating operation. can be executed by

After entering the automatic heating mode, when one of the operation switches 52d and 62d is manually turned on by the user (STEP 2), the bath room temperature Th detected by the temperature sensor 54 at this time is higher than the heating start threshold. In this case, the heating start threshold is updated by increasing it by 1° C. (STEP 3), and the air conditioner 3 is caused to perform normal heating operation (STEP 4). The normal heating operation continues until a time arbitrarily set by the user elapses or until the user manually operates either one of the operation switches 52d and 62d. STEP 3 is a control assuming a case where the user judges that the bath room temperature Th of the bathroom BR is low due to sensible temperature, etc., and that the bathroom BR is not heated to a comfortable level by the bathing start time. In this embodiment, the heating start threshold in the automatic heating mode is set to the reference temperatures of 10° C. and 15° C. in 5° C. increments. Therefore, in the control means 7, the upper limit of the number of ON operations by the user for either one of the operation switches 52d and 62d is 4, and the heating start threshold is increased to 4°C, that is, the setting is changed to 14°C and 19°C. I am making it possible. Incidentally, the normal heating operation of the air conditioner 3 is controlled by the air conditioning control means 34 .

When both of the operation switches 52d and 62d are turned off and one of the automatic hot water filling switches 52b and 62b is turned on by the user's manual operation (STEP 5), the control means 7 detects that the temperature sensor 54 is When it is determined that the detected bath room temperature Th is equal to or lower than the heating start threshold (15° C. in this embodiment) (STEP 6), the air conditioner 3 is operated for heating, and heating control is performed to adjust the bath room temperature Th to the target temperature. (STEP7). On the other hand, when it is determined that the bath room temperature Th is higher than 15° C., the control proceeds to STEP8. The transition to the control in STEP8 is similarly carried out in STEP5 when the automatic hot-water filling switches 52b and 62b remain OFF. In STEP 8, the control means 7 determines whether or not the bath room temperature Th detected by the temperature sensor 54 is 15° C. or less, or whether or not the heating operation in the automatic heating mode has been executed even once on the same day (automatic execution of heating operation). When it is determined that the bath room temperature Th is 15° C. or less or that the automatic heating operation is to be performed, the air conditioner 3 waits to perform the heating operation. On the other hand, if it is determined that the bath room temperature Th is higher than 15° C. or that the automatic heating operation is not executed, the process returns to STEP1. The control means 7 is programmed to store the execution history of the automatic heating operation in order to determine whether or not the automatic heating operation should be executed.

Next, the control means 7 determines whether or not it is a predetermined time before the estimated bathing start time (including the scheduled bathing start time) (STEP 9). In this embodiment, the predetermined time is set to 30 minutes. However, the predetermined time can be appropriately set in consideration of the maximum heating capacity of the air conditioner 3, the size and direction of the bathroom BR, and can be stored in the control means 7. Here, the time a predetermined time before the estimated bathing start time corresponds to the heating operation start time. Therefore, the control means 7 is also programmed to calculate the heating operation start time from the estimated bathing start time and the predetermined time, and to store the calculated heating operation start time. When determining that it is 30 minutes before the estimated bathing start time (heating operation start time), the control means 7 causes the air conditioner 3 to perform heating operation (STEP 7). If it is determined that it is not 30 minutes before the estimated bathing start time, the process returns to STEP1. As described above, in this embodiment, after the estimated bathing start time is estimated, the control means 7 sets the heating operation start time so that the bath room temperature reaches the target temperature by the estimated bathing start time. The heating operation time of the air conditioner 3 in the automatic operation mode is such that the bath room temperature reaches the target temperature by the estimated bathing start time and the user can feel a sufficient warmth even during bathing. can be set. In this embodiment, the heating operation time of the air conditioner 3 is set to 60 minutes. The heating operation time of the air conditioner 3 is stored in the air conditioning control means 34 in advance.

In this embodiment, the ON/OFF determination of the operation switches 52d and 62d by the user's manual operation (STEP 2) precedes the determination of the bath room temperature in the automatic heating mode or the determination of whether or not the automatic heating operation is to be performed (STEP 8). Therefore, even if the bath room temperature detected by the temperature sensor 54 is higher than the heating start threshold, the control means 7 prioritizes the normal heating operation of the air conditioner 3 over the air conditioning control in the automatic operation mode. to heat the bathroom BR. Further, since the ON/OFF determination (STEP 5) of the automatic hot-water filling switches 52b and 62b by the user's manual operation is performed between STEP 2 and STEP 8, the control means 7 is not based on the estimated bathing start time. The air conditioning control of the air conditioner 3 is executed from the time when the hot water filling operation is started, that is, when either one of the automatic hot water filling switches 52b and 62b is turned on. The air conditioning control of the control means 7 in this case includes the control based on the bath room temperature determination in STEP 6 as described above.

Then, when one of the operation switches 52d and 62d is turned off (STEP 10), the heating start threshold value is lowered by 1° C. and updated (STEP 11), the heating operation of the air conditioner 3 is stopped (STEP 12), and STEP 1 , and the air conditioner 3 is in a standby state until the next bathing. STEPs 10 and 11 are controlled on the assumption that the bath room temperature Th of the bathroom BR is high due to the sensible temperature or the like, and the bathroom BR is heated to a temperature exceeding the comfortable temperature before the bathing start time, and the user feels uncomfortable. As described above, the heating start threshold in the automatic heating mode is set to the reference temperatures of 10° C. and 15° C. in 5° C. increments. Therefore, in the control means 7, the upper limit of the number of times the user turns OFF one of the operation switches 52d and 62d is 4, and the heating start threshold is lowered to 4°C. You can change the settings up to .

On the other hand, if the operation switches 52d and 62d are not turned off in STEP 10 and remain on, the control means 7 determines whether or not this state continues for a predetermined time (STEP 13). In this embodiment, the predetermined time is set to 60 minutes. This predetermined time is set in advance and stored in the control means 7, and the control means 7 also has a timer function in order to realize integration of the predetermined time. The predetermined time for continuation of the heating operation is not necessarily limited to 60 minutes. After the predetermined time has elapsed, the heating operation is stopped (STEP 12). When the duration of the heating operation is less than the predetermined time, it is determined whether or not the human sensor 8 has detected the user entering the bathroom BR (entrance detection) (STEP 14). If it is determined that no entry has been detected, the process returns to STEP10.

After it is determined in STEP 14 that there is room entry detection, if one of the operation switches 52d and 62d is turned off by the user within a predetermined time (for example, 1 minute) (STEP 15), the control means 7 sets the target temperature to that level. The target temperature stored at that time is changed to be lower than the target temperature and updated, and the updated target temperature is stored. In the present embodiment, the predetermined time from the determination that entry into the room is detected until the user turns off one of the operation switches 52d and 62d is set to 1 minute, but this is not particularly limited. However, it is desirable that this predetermined time is relatively short, and the predetermined time is also preset and stored in the control means 7 . Also, the target temperature is set by dividing it into a plurality of levels such as levels 1 to 5, for example. Therefore, the range of reduction of the target temperature in STEP 16 is set to 1 level. A specific temperature for each level can be set as appropriate, and can be set in units such as 1° C. or higher as described above. Since the level of the target temperature updated in STEP 16 is stored in the control means 7, it is reflected in the next target temperature for air conditioning control in the automatic heating mode. Then, the heating operation of the air conditioner 3 is stopped (STEP 12), the process returns to STEP 1, and the air conditioner 3 is in a standby state until the next bathing.

On the other hand, if the operation switches 52d and 62d are not turned off in STEP 15 and remain on, the control means 7 determines whether or not bathing is being performed, that is, whether or not bathing is detected (STEP 17). One form of determination of presence/absence of bathing detection will be described with reference to FIG.

First, on the premise of the determination result of whether or not the user has detected entry into the bathroom BR (whether or not entry has been detected) performed in STEP 14 shown in FIG. The time when the detection signal of the sensor 8 is input is stored as the user's entry time t, and the absolute humidity of the bathroom BR detected by the humidity sensor 55 is stored as the initial absolute humidity M0 (STEP 31). In this embodiment, the absolute humidity is the volume absolute humidity, and the unit is g/m ³ .

Next, the control means 7 accumulates the user's staying time in the bathroom and stores the maximum absolute humidity M1 during the stay based on comparison with the initial absolute humidity M0 (STEP 32). Thereafter, the control means 7 determines whether or not the user's staying time in the bathroom is longer than or equal to the first predetermined time, or whether or not the staying time is longer than or equal to the second predetermined time and the difference between the maximum absolute humidity M1 and the initial absolute humidity M0 (M1- M0) is equal to or greater than a predetermined value (STEP 33). In the present embodiment, the first predetermined time of the user's stay in the bathroom is set to 10 minutes and the second predetermined time is set to 7 minutes, and the difference between the maximum absolute humidity M1 and the initial absolute humidity M0 ( M1-M0) is set to 5 g/ ^m3 . The first predetermined time, the second predetermined time, and the difference (M1-M0) between the maximum absolute humidity M1 and the initial absolute humidity M0 are sample data estimated from general tendencies regarding bathing. remembered. The purpose of users entering the bathroom BR can be classified into bathing, cleaning the bathroom, drying the laundry in the bathroom, etc. Although it is qualitative, in the case of bathing, the staying time is longer compared to entering the room for other purposes. Absolute humidity tends to be high due to reasons such as a long period and a large amount of hot water used. Based on this tendency, the first predetermined time, the second predetermined time, and the difference (M1-M0) between the maximum absolute humidity M1 and the initial absolute humidity M0 are set.

If it is determined that the bathing time is 10 minutes or more, or the bathing time is 7 minutes or more and the difference (M1-M0) between the maximum absolute humidity M1 and the initial absolute humidity M0 is 5 g/m ³ or more, bathing , the control means 7 stores and acquires the previously stored entry time t as the bathing start time (STEP 34). On the other hand, when it is determined that the above conditions are not satisfied, it is assumed that the user has entered the bathroom BR for purposes other than bathing, and the control means 7 controls the previously stored entry time t, the initial absolute humidity M0, and the maximum absolute humidity Erase all of M1. Thereafter, when the user leaves the room, the human sensor 8 outputs the detection signal to the control means 7 again (room exit detection). The control means 7 determines the presence or absence of this room exit detection (STEP 35). A case where the control means 7 determines that the above conditions are satisfied and that there is detection of leaving the room corresponds to the completion of bathing. Determination of no detection of leaving the room is made, for example, when a detection signal from the human sensor 8 is not input to the control means 7 for a predetermined time (for example, 10 minutes, etc.) from the re-input time of the detection signal from the human sensor 8. is exemplified. In this case, the predetermined time can be preset and stored in the control means 7 . Then, if it is determined in STEP35 that no exit has been detected, the process returns to STEP32 shown in FIG. The bathing detection determination (STEP 17) shown in FIG. 2 is exemplified as described above.

Returning to FIG. 2, the control after determining whether or not it is bathing based on bathing detection in STEP 17 will be described. If it is determined to be a bathing, the control means 7 statistically processes the bathing start time acquired in STEP 34 shown in FIG. is stored (STEP 18). More reliable estimation of the bathing start time requires a predetermined period of about several weeks in units of one week, but the estimated bathing start time after the predetermined period matches the user's daily bathing tendency. A predetermined period for estimating the bathing start time is also preset and stored in the control means 7 .

When it is determined in STEP 17 that it is not bathing, the control means 7 causes the air conditioner 3 to continue the heating operation for a predetermined time (for example, 60 minutes) (STEP 19), and stops the heating operation after the predetermined time (STEP 20). , the process returns to STEP 1, and the air conditioner 3 is in a standby state until bathing. On the other hand, if it is determined in STEP19 that the time is less than the predetermined time, the process returns to STEP15. Note that the predetermined time for continuing the heating operation of the air conditioner 3 when it is determined that the user is not bathing is also set in advance and stored in the air conditioning control means 34 .

After the last estimated bathing start time of the day, the control means 7 receives a detection signal from the human sensor 8 when the user enters the bathroom BR, and then receives a detection signal from the human sensor 8 again. In other words, it is determined whether or not a person leaving the room is detected (STEP 21), as in STEP 35 shown in FIG. This determination is synonymous with determining whether or not the person leaving the room is the last bather among the bathers for the day, and the bathing of the last bather has ended. When the control means 7 determines in STEP 21 that the last input of the day has ended, the ventilation means 33 is operated to perform the ventilation operation of the air conditioner 3 (drying operation when the hot water coil 31 and the air blowing means 32 are also operated). (STEP 22). The ventilation operation time of the air conditioner 3 after bathing is stored in advance in the air conditioning control means 34 . When the ventilation operation time elapses, the air conditioner 3 stops the ventilation operation, returns to STEP 1, and enters a standby state until the next bathing. On the other hand, if it is determined in STEP 21 that the person leaving the room is not the last person to take a bath, even though the presence of a person leaving the room is detected by the human sensor 8, the heating operation of the air conditioner 3 is stopped and the process returns to STEP 1 until the next bathing. The air conditioner 3 enters a standby state.

By repeating the air-conditioning control described above, when bathing is performed multiple times on the same day, one estimated bathing start time is obtained for each bathing, and an estimated bathing start time for each day is obtained. The air conditioning control of the control means 7 based on the time is performed individually. Specifically, in the air conditioning control after returning from STEP 12, 20, 22 to STEP 1 on the same day, the heating start threshold is the initial value (15 ° C. in this embodiment), and the change of the heating start threshold is performed at each bathing start. It can be performed up to four times equally for the estimated time. In other words, the control unit 7 stores one heating start threshold in association with each estimated bathing start time.

As described above, in the bathroom heating system 1, when the user feels hot or cold after entering the bathroom BR, the operation switches 52d and 62d can be manually operated to stop the air conditioning operation. , 62d, the control means 7 changes and updates any one of the heating start threshold value, the cooling start threshold value, or the target temperature. Air conditioning control of the device 3 becomes possible.

Further, when the air-conditioning operation is stopped by manual operation of the operation switches 52d and 62d before determining that the user is taking a bath, the control means 7 changes and updates the heating start threshold value or the cooling start threshold value. Before it is determined that the user is bathing, for example, the user may be outside the bathroom BR, or simply enter the bathroom BR for a purpose other than bathing. However, in either case, the fact that the air-conditioning operation is stopped by manual operation is considered to mean that the user has judged that there is no need to start the air-conditioning operation at that time. Therefore, in those cases, by changing and updating the heating start threshold value or the cooling start threshold value, it is possible to perform automatic air conditioning control of the air conditioner 3 according to the user's preference when taking a bath next time.

Furthermore, when the air-conditioning operation is stopped by manual operation of the operation switches 52d and 62d after it is determined that the user is taking a bath, the control means 7 changes and updates the target temperature. If the air-conditioning operation is stopped by manual operation after it is determined that the user is taking a bath, it is considered that the bath room temperature has already reached the temperature desired by the user at that time. Therefore, in such a case, by changing and updating the target temperature, automatic air conditioning control of the air conditioner 3 according to the user's preference can be performed at the time of next bathing. By making it possible to change/update the heating start threshold value or the cooling start threshold value and change/update the target temperature by the control means 7 as described above, it is possible to further meet the user's preference when taking a bath next time. Automatic control of the air conditioner becomes possible.

Furthermore, the control means 7 automatically sets the start time of the heating operation of the air conditioner 3 based on the estimated bathing start time. , there is no need to manually set the start time of the heating operation in the control means 7, and the usability for the user is improved.

Since the controller 7 can communicate with the water heater 2 , the heating operation of the air conditioner 3 can be linked with the hot water supply operation of the water heater 2 . That is, the control means 7 executes the air conditioning control of the air conditioner 3 from the hot water filling start time by the hot water supply device 2 . Therefore, the bathroom BR is already heated when taking a bath, and the user entering the bathroom BR hardly feels cold.

In addition, since the control means 7 automatically causes the air conditioner 3 to perform ventilation operation based on the determination of the end of the last bathing of the day, the user does not need to manually operate the ventilation operation after the last bathing of the day. , user convenience is further improved.

Although the present invention has been described with respect to one embodiment, the present invention is not limited to the above embodiment. For example, when the operation switches 52 d and 62 d are manually operated to stop heating, the control means 7 can stop the heating operation of the air conditioner 3 without automatically controlling the heating operation of the air conditioner 3 . After the manual operation of stopping the heating, the air conditioner 3 can be manually operated by the switch of the dressing room remote controller 36 . The hot water supply device 2 may be an electric water heater, a heat pump, or a hybrid heat source such as a gas hot water heater. Furthermore, an electric heater may be used as the heat source of the air conditioner 3 . In this case, the second forward pipe 44 and the return pipe 45 can be omitted. Furthermore, the heat source for the air conditioner 3 can employ not only one that heats the air, but also one that cools it, or both. When a heat source for cooling air is used, the air conditioner 3 can cool the bathroom BR, and the bathroom heating system 1 is changed to a bathroom cooling system. When both a heat source for heating air and a heat source for cooling air are used, the air conditioner 3 can cool and heat the bathroom BR. can. In this case, the bathroom heating system 1 is changed to a bathroom air conditioning system.

In the case of the bathroom cooling system or the bathroom air-conditioning system, a cooling start threshold value can be set in advance and stored in the control means 7, and 20° C. or the like can be exemplified as the cooling start threshold value. Moreover, an automatic cooling switch can be provided in the switches 52 and 62 of the bathroom remote controller 5 and the kitchen remote controller 6, respectively. When the user manually operates the automatic cooling switch, the control means 7 enters the automatic cooling mode and can perform air conditioning control. Furthermore, the operation switches 52d and 62d provided in the switches 52 and 62 can also be used to start or stop the cooling operation of the air conditioner 3 manually by the user. When the start of cooling is manually operated by the operation switches 52d and 62d, the control means 7 causes the air conditioner 3 to perform the cooling operation even if the room temperature detected by the temperature sensor 54 is lower than the cooling start threshold. can be updated to be lower than the value immediately before manual operation. Further, when cooling stop is manually operated by the operation switches 52d and 62d, the control means 7 can stop the cooling operation of the air conditioner 3 without automatically controlling the cooling operation of the air conditioner 3. FIG. After the manual operation to stop cooling, the air conditioner 3 can be manually operated by the switch of the dressing room remote controller 36 .

In addition, the automatic heating switches 52c, 62c, the automatic cooling switch and the operation switches 52d, 62d can also be provided on the dressing room remote control 36. FIG. Moreover, the temperature sensor 54, the humidity sensor 55, and the human sensor 8 are not particularly limited in their installation locations as long as they can reliably detect the detection target. For example, it may be installed inside the air conditioner 3 . Furthermore, as the air conditioner 3, one capable of intelligent communication with the hot water supply device 2 by wire can also be adopted. In this case, the infrared light emitting/receiving means 35 and 53 are not necessary, and when the switch of either the bathroom remote control 5 or the kitchen remote control 6 is manually turned on by the user, the air conditioning control means 34 of the air conditioner 3 is turned on. The control signal can be transmitted via the hot water supply control means 21 of the hot water supply device 2 .

The control means 7 may be incorporated in the kitchen remote controller 6 or the air conditioner 3 or the like. Furthermore, the air conditioner 3 can also be operated by a wireless remote controller. In this case, it is possible to make the air conditioner 3 IoT. Can be used as a wireless remote control. IoT is applicable not only to the air conditioner 5 but also to the water heater 2. Therefore, the entire bathroom air conditioning system including the bathroom heating system 1 and the bathroom cooling system can be IoT.

DESCRIPTION OF SYMBOLS 1... Bathroom heating system (bathroom air-conditioning system), 3... Air conditioner, 31... Warm water coil (heat source), 32... Ventilation means, 52d, 62d... Operation switch, 54... Temperature sensor (bath room temperature detection means), 55... Humidity Sensor (a part of indoor state detection means), 7... Control means, 8... Human sensor (a part or all of room state detection means), BR... Bathroom.

Claims (3)

A bathroom air conditioning system that adjusts the bath room temperature to a target temperature,
A heat source that heats or cools air, a blowing means that sucks air in the bathroom and blows out the air heated or cooled by the heat source into the bathroom, a bath room temperature detection means that detects the bath room temperature, and a detection bathroom detected by the bath room temperature detection means. and a control means capable of executing air conditioning control for adjusting the bath room temperature to a target temperature by performing air conditioning operation, which is either heating operation or cooling operation, when the temperature is equal to or lower than the heating start threshold or the cooling start threshold or higher. In those equipped with an air conditioner,
Equipped with an operation switch that can manually start and stop the air conditioning operation by the air conditioner,
Based on the determination that the detected bath room temperature is equal to or lower than the heating start threshold or equal to or higher than the cooling start threshold, the operation switch is manually operated while the control means is performing air conditioning control and the air conditioner is performing air conditioning operation. A bathroom air-conditioning system, wherein when air-conditioning operation is stopped, the control means changes and updates any one of a heating start threshold, a cooling start threshold, and a target temperature. 2. The bathroom air-conditioning system according to claim 1, further comprising room state detection means for detecting states in the bathroom including detection of entering and leaving the bathroom, and wherein the control means controls bathing based on the detection result of the room state detection means. It is also possible to determine whether or not
The control means changes and updates the heating start threshold value or the cooling start threshold value when the air conditioning operation is stopped by manual operation of the operation switch before determining that the user is taking a bath. Bathroom air conditioning system. 3. The bathroom air-conditioning system according to claim 1, further comprising indoor state detection means for detecting states in the bathroom including detection of entering and leaving the bathroom, wherein the control means is based on the detection result of the room state detection means. It is also possible to determine whether it is a bath or not,
The bathroom air-conditioning system, wherein the control means changes and updates the target temperature when the air-conditioning operation is stopped by manual operation of the operation switch after it is determined that the user is taking a bath.

Images