JP2018197615A - Bathroom air conditioner - Google Patents

Abstract

To provide a bathroom air conditioner capable of performing air conditioning of a bathroom so as to prevent a bathing person entering a bathroom for bathing from feeling cold or hot irrespective of a season or a level of atmospheric temperature.SOLUTION: A control device 13 of a bathroom air conditioner 10 compares a temperature observation value in a bathroom BR in the beginning of hot water supply with a temperature threshold variably set according to season information or atmospheric temperature information, and based on the comparison result, determines whether or not a ventilation operation and a hot air blowing operation (heating operation) for the bathroom BR are required respectively. Operation control of the bathroom air conditioner 10 is performed according to the determination on the requirement.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a bathroom air conditioner that performs an air conditioning operation such as a ventilation operation and a heating operation of a bathroom.

  Conventionally, as can be seen from, for example, Patent Document 1, a technique for performing a ventilation operation of a bathroom in conjunction with starting a hot water bath to a bathtub in summer is known.

  In addition, as seen in Patent Document 2 or Patent Document 3, for example, a technique for performing a heating operation of a bathroom when the temperature of the bathroom is equal to or lower than a predetermined temperature when starting hot water for a bathtub is known. ing.

JP 2004-347193 A JP 2004-293925 A JP 2002-276966 A

  When the bather enters the bathroom after the bath is finished, the temperature in the bathroom that the bather feels physically hot or the temperature in the bathroom that the bather feels cold is generally It varies depending on the season to which it belongs, or the temperature in or around that day.

  For example, the temperature in the bathroom that bathers feel physically hot or the temperature in the bathroom that it feels cold is generally higher in the summer when the temperature is higher than in the winter when the temperature is low. There is a tendency to be higher (in other words, the winter when the temperature is low tends to be lower than the summer when the temperature is high).

  However, in the technique shown in Patent Document 1, since the ventilation operation is uniformly performed in the summer, for example, due to the influence of the cool summer or the cooling of another room close to the bathroom, etc. Even when the temperature is relatively low, the ventilation operation is executed, and as a result, there is a disadvantage that the bather entering the bathroom tends to feel cold.

  Also, in the techniques disclosed in Patent Documents 2 and 3, whether or not to perform the heating operation of the bathroom is determined depending on whether or not the temperature of the bathroom is equal to or lower than a predetermined temperature. For this reason, for example, if the predetermined temperature is set to a lower temperature, the heating operation linked to the hot water operation is not performed even when the bather feels cold at a time other than the winter season. . On the contrary, if the predetermined temperature is set to a higher temperature, it is easy to cause a disadvantage that the heating operation linked to the hot water operation is executed even in a situation where the bather does not feel cold.

  The present invention has been made in view of such a background, and prevents the bather entering the bathroom for bathing from feeling cold or hot, regardless of the season or temperature level. An object of the present invention is to provide a bathroom air conditioner that enables air conditioning of a bathroom.

In order to achieve the above object, the bathroom air conditioner of the present invention is a bathroom air conditioner capable of performing a ventilation operation for ventilating a bathroom and a warm air blowing operation for blowing warm air into the bathroom,
When the hot water of the bathtub in the bathroom is started, the bathroom temperature observing unit for obtaining an observation value of the temperature of the bathroom at the beginning of the hot water,
The observation value of the temperature of the bathroom according to at least one of the season information indicating the season to which the day belongs and the temperature information indicating the temperature of the day or the temperature information indicating the temperature within a certain period before the day An operation necessity determination unit that compares with a variably set temperature threshold, and determines the necessity of each of the ventilation operation and the warm air blowing operation based on the comparison result;
And a control unit that controls operation of the bathroom air conditioner according to the determination of necessity.

  In the present invention, the “observed value of the temperature of the bathroom at the beginning of the hot water beam” is more specifically, at the start of the hot water beam, or in the vicinity thereof (immediately before the start of the hot water beam or It means the detected value or estimated value of the temperature of the bathroom in the period immediately after. The “observed value of the temperature of the bathroom” may be a detected value or an estimated value of the actual temperature in the bathroom, but may be regarded as almost the same as the actual temperature in the bathroom (for example, in the bathroom). It may be a detected value or an estimated value of the temperature of an adjacent dressing room or the like.

  In addition, “the day” means the day when the bathtub is heated.

  According to the said invention, in order to determine the necessity of each of the said ventilation operation and the said warm air ventilation operation, as said temperature threshold value compared with the observed value of the said bathroom temperature, the said season information and the said temperature information A temperature threshold variably set based on at least one of the information is used. Therefore, it is possible to determine whether or not the ventilation operation and the hot air blowing operation are necessary according to the season indicated by the season information or the temperature indicated by the temperature information.

  Then, the operation control of the bathroom air conditioner is performed according to the determination of necessity. In this case, either the ventilation operation or the hot air blowing operation is performed in parallel with the hot water in the bathtub, or both operations are not performed.

  As a result, during the hot water in the bathtub, the bather entering the bathroom after the hot water is finished can be in a suitable temperature state or can be prevented from feeling hot or cold. It becomes possible to air-condition the bathroom.

  As a result, according to the present invention, it is possible to prevent the bather entering the bathroom for bathing from feeling cold or hot after the hot water in the bathtub is finished. It is possible to air-condition the bathroom so that it can be realized without depending on it.

  In the present invention, the necessity determining unit variably sets each of the plurality of temperature thresholds according to at least one of the season information and the temperature information, and sets the plurality of temperature thresholds. Based on a comparison result between each and an observed value of the temperature of the bathroom, it may be configured to determine whether or not the ventilation operation and the hot air blowing operation are necessary.

  According to this, the necessity of each of the ventilation operation and the hot air blowing operation is determined based on at least one of the season information and the temperature information, and the temperature of the bathroom Depending on the magnitude relationship with the observed values, it can be classified and determined finely. Therefore, it is possible to suitably enhance the effect of air conditioning the bathroom so as to prevent the bather from feeling cold or hot.

BRIEF DESCRIPTION OF THE DRAWINGS The figure which shows schematically the whole structure of a system provided with the bathroom air conditioner of one Embodiment of this invention. The block diagram which shows the function of the control apparatus of the bathroom air conditioner shown in FIG. The flowchart which shows the control processing of the control apparatus of the bathroom air conditioner shown in FIG.

  An embodiment of the present invention will be described below with reference to FIGS. The system shown in FIG. 1 is a bath water heater capable of performing a bath operation for performing hot water, chasing, adding hot water, etc. of a bath BT of a bathroom BR and a hot water supply operation for supplying hot water to a hot water supply location such as a bathroom BR and a kitchen. 1 and a bathroom air conditioner 10 capable of performing an air conditioning operation of the bathroom BR such as a heating operation and a ventilation operation of the bathroom BR.

  Note that the air conditioning operation of the bathroom BR can include a heating operation and a ventilation operation, a drying operation for drying the bathroom BR, a blowing operation for blowing cool air to the bathroom BR, and the like. In addition, the heating operation or the drying operation of the bathroom BR is, in other words, a hot air blowing operation for blowing warm air to the bathroom BR.

  The bath water heater 1 includes a heat source device 2 and a plurality (two in the illustrated example) of hot water / bath operation remote controllers 3 and 4 for the user to operate the bath water heater 1.

  Of the remote controllers 3 and 4 for hot water supply / bath operation, the remote controller 3 is a remote controller installed in the bathroom BR, and the remote controller 4 is a remote controller installed in a place other than the bathroom BR, for example, in the kitchen. Hereinafter, the remote controller 3 may be referred to as a bathroom remote controller 3, and the remote controller 4 may be referred to as a kitchen remote controller 4.

  By operating these bathroom remote controller 3 or kitchen remote controller 4, it is possible to set the execution instruction of each operation of the bath water heater 1, the hot water temperature desired by the user, or the hot water temperature (bath temperature) in the bathtub BT. Is possible.

  The bath hot water supply device 1 may further include a hot water supply / bath operation remote control other than the bathroom remote control 3 and the kitchen remote control 4.

  The heat source unit 2 is, for example, a combustion type heat source unit having a known configuration, and is equipped with a burner (combustion type heating source), a heat exchanger, and the like that are not shown. The fuel may be either fuel gas or liquid fuel such as kerosene.

  Further, the heat source unit 2 supplies a hot water supply pipe 5 for introducing hot water supply water such as tap water into the heat source unit 2 and hot water supply water (hot water) heated in the heat source unit 2 to hot water supply points such as kitchens and bathrooms. A hot water supply pipe 6 to be connected is connected, and bathtub pipes 7 and 7 for circulating hot water to and from the bathtub BT are connected.

  The heat source unit 2 heats the hot water supplied from the water supply pipe 5 during the hot water supply operation through the heat exchanger by the combustion heat of the burner and supplies the heated hot water (hot water) to the kitchen, bathroom BR, etc. The hot water supplied from the water supply pipe 5 is heated by the combustion heat of the burner through the heat exchanger during the operation of supplying the hot water supply point to the hot water supply point through the hot water supply pipe 6 and the hot water operation or the hot water operation of the bathtub BT. However, the hot water supply hot water (hot water) is supplied to the bathtub BT via one or both of the bathtub pipes 7 and 7, and the bathtub pipe 7 is connected to the bathtub BT during the reheating operation of the bathtub BT. , 7, while the hot water is circulated, the hot water is heated by the combustion heat of the burner via the heat exchanger.

  The bathroom air-conditioning apparatus 10 includes a bathroom air-conditioning main body 11 that is a main body of the bathroom air-conditioning apparatus 10 and a bathroom air-conditioning operation remote controller 12 that allows a user to operate the bathroom air-conditioning apparatus 10. The remote control 12 for bathroom air conditioning operation is a remote control installed in a dressing room UDR adjacent to the bathroom BR, for example. By operating the bathroom air-conditioning operation remote controller 12, instructions for executing each operation of the bathroom air-conditioning apparatus 10, setting of the temperature or air volume desired by the user during heating operation or drying operation, and user during ventilation operation or air blowing operation It is possible to set the desired air volume.

  The bathroom air conditioner 10 may further include a remote controller installed in the bathroom BR in addition to the bathroom air conditioning operation remote controller 12. Further, for example, the bathroom remote controller 3 may be configured to include a function as a bathroom air-conditioning operation remote controller.

  The bathroom air-conditioning main body 11 is mounted on the ceiling of the bathroom BR in this embodiment. The bathroom air-conditioning main body 11 is equipped with a heat generating unit, a heat exchanger, a blower fan, an air flow path switching damper, etc. (not shown). In this embodiment, the heat generating part of the bathroom air-conditioning main body 11 is, for example, an electric heat generating part that converts electric energy into heat energy.

  And the bathroom air-conditioning main-body part 11 is the driving | running operation | movement which exhausts this air outdoors, attracting | sucking the air in bathroom BR by the action | operation of a ventilation fan at the time of ventilation operation (including 24-hour ventilation operation) of bathroom BR. During the heating operation or drying operation of the bathroom BR, the operation (air warm air) heated through the heat exchanger by the heat of the heat generating part is blown into the bathroom BR by the operation of the blower fan. By operating the blower fan without operating the unit, it is possible to execute an operation of blowing cool air to the bathroom BR.

  In addition, the bathroom air-conditioning main-body part 11 may be comprised so that the warm water heated with the heat-source equipment 2 of the bath hot-water supply apparatus 1 may be supplied instead of providing a heat generating part. Alternatively, the heat generating part of the bathroom air-conditioning main body 11 may be a combustion type heat generating part. Moreover, the bathroom air-conditioning main-body part 11 may be mounted on the wall of the bathroom BR.

  Further, the heat source device 2 is equipped with a control device 8 that controls the operation of the heat source device 2, and the bathroom air conditioning main body 11 is equipped with a control device 13 that controls the operation of the bathroom air conditioning main body 11. In addition, a temperature sensor 14 for detecting the room temperature of the bathroom BR (hereinafter referred to as bathroom temperature) is mounted. The control devices 8 and 13 are each composed of an electronic circuit unit including a CPU, a RAM, a ROM, an interface circuit and the like.

  The control device 8 of the heat source device 2 is connected to each of the bathroom remote controller 3 and the kitchen remote controller 4 so as to be able to perform wired communication with the bathroom remote controller 3 and the kitchen remote controller 4. The control device 8 controls the operation of the heat source unit 2 according to the operation instruction information given from the bathroom remote controller 3 or the kitchen remote controller 4 by the functions realized by the implemented hardware configuration and program (software configuration). It is comprised so that it can perform.

  Moreover, in this embodiment, the bathroom remote control 3 is comprised so that the operation information etc. of the bath water heater 1 can be suitably transmitted to the control apparatus 13 of the bathroom air-conditioning main-body part 11 by radio | wireless communications, such as infrared communication. . For example, when the bathroom remote controller 3 starts the hot water operation of the bathtub BT, the bathroom remote controller 3 transmits information indicating the fact to the control device 13 of the bathroom air conditioning main body 11.

  The control device 13 of the bathroom air-conditioning main body 11 is connected to the remote control 12 so as to be able to perform wired communication with the bathroom air-conditioning operation remote control 12. Further, the control device 13 receives a detection signal from the temperature sensor 14 (a detection signal indicating the bathroom temperature), information transmitted from the bathroom remote controller 3, and the like.

  Then, the control device 13 uses the functions realized by the implemented hardware configuration and program (software configuration), the operation instruction information given from the bathroom air-conditioning operation remote controller 12, and the bathroom temperature indicated by the detection signal of the temperature sensor 14. The operation control of the bathroom air-conditioning main body 11 can be performed in accordance with the detected value or information transmitted from the bathroom remote controller 3 or the like.

  In this embodiment, as shown in FIG. 2, the control device 13 observes the bathroom temperature from the detection signal of the temperature sensor 14 when the hot water operation of the bathtub BT is executed (acquires a detected value of the bathroom temperature). ) Functions as the bathroom temperature observation unit 21, functions as the operation necessity determination unit 22 that determines whether or not the ventilation operation and heating operation of the bathroom BR are necessary, and controls the operation of the bathroom air-conditioning main body 11 according to the determination of the necessity. It has the function as the bathroom air-conditioning operation control part 23 to perform. In this case, the driving necessity determining unit 22 includes a function as a temperature threshold setting unit 22a that sets a temperature threshold to be compared with the detection value of the bathroom temperature.

  The bathroom temperature observation unit 21, the operation necessity determination unit 22, and the bathroom air conditioning operation control unit 23 are functional units corresponding to the bathroom temperature observation unit, the operation necessity determination unit, and the control unit, respectively, in the present invention.

  Supplementally, communication between the control device 8 of the heat source device 2 and each of the hot water / bath operation remote controllers 3 and 4 or between the control device 13 of the bathroom air-conditioning main body 11 and each bathroom air-conditioning operation remote controller 12. You may be comprised so that communication can be performed by radio | wireless. In addition, for example, various types of information may be configured to be communicated between the control device 8 of the heat source device 2 and the control device 13 of the bathroom air-conditioning main body 11 by wire or wireless.

  Further, the temperature sensor 14 may be disposed at a place other than the bathroom air-conditioning main body 11 as long as it can detect a bathroom temperature or a temperature that can be regarded as substantially equivalent to the bathroom temperature. For example, the temperature sensor 14 may be mounted on the bathroom remote control 3. In this case, the control device 13 can acquire the detected value of the bathroom temperature by transmitting information from the bathroom remote controller 3 to the control device 13 of the bathroom air-conditioning main body 11.

  In addition, for example, before the hot water of the bathtub BT, the room temperature of the dressing room UDR can be considered to substantially match the bathroom temperature. Therefore, for example, when the temperature sensor for detecting the room temperature of the dressing room UDR is mounted on the remote controller 12 for the air conditioning operation of the bathroom, at the beginning of the hot water operation of the bathtub BT (at the time of starting or in the vicinity thereof). It is also possible to use the temperature detected by the temperature sensor as the bathroom temperature at the beginning of hot water operation.

  Next, with reference to the flowchart of FIG. 3, the operation | movement of the bathroom air conditioner 10 in case the hot water of the bathtub BT is performed is demonstrated.

  When the user instructs to perform the hot water operation of the bath water heater 1 by operating the bathroom remote controller 3 or the kitchen remote controller 4, or according to a schedule preset by the user with the bathroom remote controller 3 or the kitchen remote controller 4, When the request | requirement which should start execution of a driving | operation generate | occur | produces, the control apparatus 8 of the heat source machine 2 will start performing operation control of the heat source machine 2 so that the hot water of the bathtub BT may be performed.

  In this case, at the start of the hot water operation, information indicating the start of the hot water operation is transmitted from the bathroom remote controller 3 to the control device 13 of the bathroom air conditioning main body 11. Thereby, the control apparatus 13 recognizes the start of hot water operation, and performs the process shown in the flowchart of FIG. 3 according to this recognition.

  In addition, when communication can be performed between the control device 8 of the heat source device 2 and the control device 13 of the bathroom air-conditioning main body 11, information indicating the start of hot water operation is transmitted from the control device 8 of the heat source device 2. Alternatively, it may be transmitted to the control device 13 of the bathroom air conditioning body 11.

  When the hot water operation is started, the control device 13 of the bathroom air-conditioning main body 11 first starts the observation value of the bathroom temperature indicated by the detection signal of the temperature sensor 14 in STEP 1 (the initial observation of the hot water operation). Value). The processing of STEP 1 is processing of the bathroom temperature observation unit 21.

  Next, in STEP 2, the control device 13 sets two temperature threshold values TA and TB (TA> TB) by the temperature threshold value setting unit 22a. In this process, the control device 13 determines that the temperature thresholds TA and TB correspond to the season information indicating the season (spring / summer / autumn / winter) to which the day of the hot water operation belongs, for example, as shown in Table 1 below. Threshold values TA and TB are set.

  In this case, the control device 13 stores and holds in advance calendar information that defines the relationship between the date and the season, and the season of the day is specified based on the calendar information from the date of the day.

  As shown in Table 1 above, the temperature thresholds TA and TB are higher as the temperature is higher (in other words, the temperature thresholds TA and TB are lower as the temperature is lower). TA and TB are set.

  Here, the temperature threshold value TA is a state where the bather enters the bathroom BR in a state where the bathroom temperature is higher than the temperature threshold value TA, and the bather is likely to feel physically hot. The temperature is considered to be preferable to ventilate the bathroom BR before the bather enters the bathroom BR.

  In addition, the temperature threshold value TB is such that when the bather enters the bathroom BR in a state where the bathroom temperature is lower than the temperature threshold value TB, the bather feels that the bather is physically cold, and therefore the bathing It is a temperature at which it is considered preferable to warm the bathroom BR before the person enters the bathroom BR.

  Here, when the bather enters the bathroom BR, the bath temperature that the bather feels physically hot is generally higher in the high temperature period than in the low temperature period (in other words, If this is the case, the temperature will be lower during low temperatures than during high temperatures).

  In addition, when a bather enters the bathroom BR, the bathroom temperature that the bather feels physically cold is generally lower in the low temperature period than in the high temperature period (in other words, Tend to be higher during high temperatures than during low temperatures).

  Therefore, in the present embodiment, the control device 13 sets the temperature thresholds TA and TB as described above according to the season information of the day.

  In the present embodiment, the temperature threshold values TA and TB in spring are the same as the temperature threshold values TA and TB in autumn, but they may be different from each other. For example, in the past few years, when the spring average temperature is higher than the autumn average temperature, the temperature threshold TA and TB in the spring are higher than the temperature threshold TA and TB in the autumn, respectively. TA and TB may be set.

  Moreover, the temperature thresholds TA and TB corresponding to the seasons or the seasons depend on the region where the bath water heater 1 and the bathroom air conditioner 10 are installed (for example, the region is Hokkaido). Depending on whether they are in Kyushu, etc.).

  Supplementally, the control device 13 has temperature information indicating the temperature of the day when the hot water operation is performed (for example, the detected value of the temperature at the start of the hot water operation, or the temperature of the day until the start of the hot water operation). The average value of the detected values, or the highest temperature, the lowest temperature or the average temperature predicted by the weather forecast on the day, or temperature information indicating the temperature in a certain period before the day (for example, the average temperature in the certain period, Alternatively, the temperature threshold values TA and TB may be set according to the temperature indicated by the temperature information. In this case, the control device 13 sets the temperature threshold TA so that the temperature thresholds TA and TB are higher as the temperature is higher (in other words, the temperature thresholds TA and TB are lower as the temperature is lower). , TB are set.

  Note that the changes in the temperature threshold values TA and TB with respect to the air temperature may be any of a continuous change and a step change (step change).

  Further, it is possible to set the temperature thresholds TA and TB with reference to both the season information and the temperature information.

  Next, the control device 13 executes a process of comparing the observation value of the bathroom temperature at the beginning of the hot water operation acquired in STEP 1 with the temperature thresholds TA and TB set in STEP 2 in STEP 3 and 4, and the comparison result is obtained. Accordingly, the necessity of executing the ventilation operation or heating operation (warm air blowing operation) of the bathroom BR is determined in STEPs 5, 7, and 11. The processing of these STEPs 3, 4, 5, 7, and 11 is the processing of the operation necessity determining unit 22.

  In STEP 3, the control device 13 determines whether or not the observation value of the bathroom temperature is lower than the temperature threshold TA. When the determination result in STEP 3 is negative (when the bathroom temperature ≧ TA), the bather entering the bathroom BR after the hot water driving operation is likely to feel hot. No. 13 determines in STEP 7 that the ventilation operation of the bathroom BR is necessary and the heating operation (warm air blowing operation) is unnecessary.

  In this embodiment, since the temperature threshold TA is set as shown in Table 1, for example, even in winter, due to the effect of warm winter or the heating of a room near the bathroom BR and the dressing room UDR, etc. When the observed value of the bathroom temperature becomes 25 ° C. or higher, it is determined that the ventilation operation of the bathroom BR is necessary.

  If the determination result in STEP 3 is affirmative (when bathroom temperature <TA), the control device 13 further determines in STEP 4 that the observed bath temperature value (the observed value acquired in STEP 1) is the temperature threshold value. It is determined whether it is lower than TB.

  When the determination result in STEP 4 is affirmative (when the bathroom temperature is less than TB), the bather entering the bathroom BR after the hot water driving operation is likely to feel cold. No. 13 determines in STEP 5 that ventilation operation of the bathroom BR is unnecessary and heating operation (warm air blowing operation) is necessary.

  In the present embodiment, the temperature threshold value TB is set as shown in Table 1 above. For example, even in summer, due to the influence of cool summer or the cooling of a room close to the bathroom BR and the dressing room UDR. When the observation value of the bathroom temperature becomes lower than 20 ° C., it is determined that the heating operation (warm air blowing operation) of the bathroom BR is necessary.

  In addition, when the determination result of STEP 3 is positive and the determination result of STEP 4 is negative (when TB ≦ bathroom temperature <TA), the control device 13 determines the ventilation of the bathroom BR in STEP 11. It is determined that the operation is unnecessary and the heating operation (warm air blowing operation) is unnecessary.

  Next, the control device 13 executes processing for controlling the operation of the bathroom air-conditioning main body 11 in STEP 8 to 10, STEP 6, or STEP 12 to 14 according to the necessity determined as described above. These processing of STEP 8 to 10, STEP 6, or STEP 12 to 14 are processing executed by the bathroom air conditioning operation control unit 23.

  Specifically, when it is determined in STEP 7 that the ventilation operation of the bathroom BR is necessary and the heating operation (warm air blowing operation) is unnecessary, the control device 13 is 24 in STEP 8 of the bathroom air conditioner 10. Determine whether the time ventilation operation is being performed. When the 24-hour ventilation operation is being executed (when the determination result in STEP 8 is affirmative), in STEP 9, the control device 13 operates the bathroom air-conditioning main body 11 so as to continue the ventilation operation. Take control.

  Further, when the 24-hour ventilation operation is not being executed (when the determination result of STEP 8 is negative), the control device 13 controls the operation of the bathroom air-conditioning main body 11 in STEP 10 so as to start the ventilation operation. Do.

  Thereby, ventilation of bathroom BR is made. For this reason, it is possible to prevent a bather who enters the bathroom BR after the hot water driving operation from feeling hot. Note that the air volume in the ventilation operation can be controlled to, for example, an air volume preset by the bathroom air-conditioning operation remote controller 12. Alternatively, the air volume is controlled to, for example, the air volume set according to the deviation between the observation value of the bathroom temperature at the beginning of the hot water operation and the temperature threshold TA, or the bathroom temperature during execution of the ventilation operation It is also possible to control to change the air volume according to the change in the observed value.

  When it is determined in STEP 5 that the ventilation operation of the bathroom BR is not necessary and the heating operation (warm air blowing operation) is necessary, the control device 13 determines that the heating operation is started in STEP 6 so as to start the heating operation. Operation control of the part 11 is performed. In this case, when the 24-hour ventilation operation has been executed, the ventilation operation is stopped and then the heating operation is started.

  Thereby, warm air is blown into the bathroom BR, and the bathroom BR is heated. For this reason, it is possible to prevent a bather who enters the bathroom BR after the hot water driving operation from feeling cold. Note that the amount of warm air blown in the heating operation can be controlled to, for example, the amount of air preset by the bathroom air-conditioning operation remote controller 12. Or you may control the ventilation volume of this warm air to the air volume set according to the deviation of the observed value of the bathroom temperature at the time of the start of hot water operation, and the said temperature threshold value TB, for example. Alternatively, for example, a target value of the bathroom temperature is set according to a deviation between the observed value of the bathroom temperature at the beginning of the hot water operation and the temperature threshold value TB, and the observed value of the bathroom temperature is brought closer to the target value. Thus, you may feedback-control the ventilation volume of warm air.

  Further, instead of performing the heating operation of the bathroom air-conditioning apparatus 10, a warm air may be blown to the bathroom BR by performing a drying operation.

  When it is determined in STEP 11 that the ventilation operation of the bathroom BR is unnecessary and the heating operation (warm air blowing operation) is unnecessary, the control device 13 performs the 24-hour ventilation operation of the bathroom air conditioner 10 in STEP 12. Determine if it is running. When the 24-hour ventilation operation is being executed (when the determination result in STEP 12 is affirmative), the control device 13 operates the bathroom air-conditioning main body 11 so as to stop the ventilation operation in STEP 13. Take control.

  In addition, when the 24-hour ventilation operation is not being executed (when the determination result of STEP 12 is negative), the control device 13 in STEP 14 sets the bathroom air-conditioning main body 11 so as to continue the ventilation operation stop state. Perform operation control. If the operation of the bathroom air conditioner 10 (heating operation, drying operation, or air blowing operation) other than the ventilation operation has been performed before the start of the hot water operation, the operation is stopped in STEP14.

  As a result, air conditioning operations such as ventilation and heating of the bathroom BR are not performed during the hot water operation of the bathtub BT, so that the bathroom temperature when the bather enters the bathroom BR after the hot water operation ends. , Kept at a moderate temperature for bathers.

  Note that the ventilation operation or the heating operation (or drying operation) performed as described above during the hot water operation of the bathtub BT is performed, for example, when the bather enters the bathroom BR, for example, when the bather enters the bathroom BR. It is stopped by operating. Alternatively, for example, the control device 13 can automatically stop the ventilation operation or the heating operation (or drying operation) in conjunction with the end of the hot water operation.

  As described above, the control device 13 performs the ventilation operation and the heating operation (warm air blowing) of the bathroom BR during the hot water operation according to the comparison result between the bath temperature at the start of the hot water operation and the temperature thresholds TA and TB. The operation of the bathroom air-conditioning main body 11 is controlled according to the determination of the necessity. In this case, since the temperature thresholds TA and TB are variably determined according to the season information of the day when the hot water operation is performed (or according to the temperature information in the certain period before that day or the day), The ventilation operation or the heating operation (or drying operation) can be executed or stopped in conformity with the season to which the day belongs (or in accordance with the high or low temperature of the day or in the vicinity thereof).

  As a result, the bather who enters the bathroom BR after the hot water bath operation feels hot or cold regardless of the season to which the day belongs (or the high or low temperature of the day or near). With proper prevention, the bather can enter the bathroom BR at a comfortable bathroom temperature.

  In the embodiment described above, the control processing shown in the flowchart of FIG. 3 is executed by the control device 13 of the bathroom air conditioning main body 11. However, a part of the control process (for example, the processes of STEP 1 to 5, 7, 11 or a part thereof) is executed by, for example, the control device 8 of the heat source unit 2 or the control unit of the bathroom remote control 3. You may make it do.

  Moreover, in the said embodiment, two temperature threshold value TA and TB were used as a temperature threshold value. However, for example, by comparing the observation value of the bathroom temperature at the beginning of the hot water operation with three or more temperature thresholds, the necessity of the ventilation operation and the hot air blowing operation (heating operation or drying operation) is determined. At the same time, the air volume in the ventilation operation or the hot air blowing operation may be determined.

  The bathroom air conditioner of the present invention may have, for example, a bathtub hot water function in addition to a bathroom air conditioning operation function.

DESCRIPTION OF SYMBOLS 10 ... Bathroom air conditioner, 21 ... Bathroom temperature observation part, 22 ... Operation necessity determination part, 23 ... Bathroom air-conditioning operation control part (control part).

Claims (2)

A bathroom air conditioner capable of performing a ventilation operation for ventilating a bathroom and a hot air blowing operation for blowing warm air into the bathroom,
When the hot water of the bathtub in the bathroom is started, the bathroom temperature observing unit for obtaining an observation value of the temperature of the bathroom at the beginning of the hot water,
The observation value of the temperature of the bathroom according to at least one of the season information indicating the season to which the day belongs and the temperature information indicating the temperature of the day or the temperature information indicating the temperature within a certain period before the day An operation necessity determination unit that compares with a variably set temperature threshold, and determines the necessity of each of the ventilation operation and the warm air blowing operation based on the comparison result;
A bathroom air conditioner comprising: a control unit that controls operation of the bathroom air conditioner according to the determination of necessity. The bathroom air conditioner according to claim 1,
The operation necessity determining unit variably sets each of the plurality of temperature thresholds according to at least one of the season information and the temperature information, and each of the plurality of temperature thresholds and the bathroom A bathroom air conditioner configured to determine whether or not each of the ventilation operation and the hot air blowing operation is necessary based on a comparison result with the observed value of the temperature.