JP2022124113A - Hot water supply system - Google Patents

Abstract

To provide a hot water supply system that is advantageous in more appropriately executing a cooperative operation for operating a heater for heating a bathroom or a dressing room when filling a bathtub with hot water.SOLUTION: A hot water supply system includes hot water filling means for executing hot water filling for supplying hot water to a bathtub in a bathroom in a house, and control means for executing hot water filling when a user interface receives an instruction for hot water filling, which is a user instruction to start hot water filling. When water supply filling is executed, the control means can execute a cooperative operation to operate a heater for heating at least one of the bathroom and a dressing room adjacent to the bathroom. The control means is configured so as to execute the cooperative operation upon receipt of an instruction for hot water filling from inside the house, and not execute the cooperative operation upon receipt of an instruction for hot water filling from outside the house.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to hot water supply systems.

In Patent Document 1 below, when the automatic switch of the heat source remote controller is turned on, hot water is supplied to the bathtub, and the bathroom heater control device instructs the bathroom heater remote controller to start heating operation, and the bathroom heater is heated. Techniques for initiating operation are disclosed.

JP 2004-053065 A

If the operation of the heater for heating the bathroom or dressing room is unconditionally started when the bathtub is filled with hot water, there is a possibility that inappropriate or unnecessary heating operation will be performed.

The present disclosure has been made to solve the above-described problems, and is advantageous in performing coordinated operation to operate a heater that heats the bathroom or dressing room when filling the bathtub with hot water. An object of the present invention is to provide a hot water supply system.

A hot water supply system according to the present disclosure includes hot water filling means for filling hot water to supply hot water to a bathtub of a bathroom in a house, and hot water filling when a user interface receives a hot water filling instruction which is a user instruction to start filling hot water. and a control means for executing the control means, wherein the control means is capable of executing a coordinated operation of operating a heater for heating at least one of the bathroom and the dressing room adjacent to the bathroom when the hot water is replenished, and the control means is configured to execute cooperative operation when a hot water filling instruction is received from inside the house, and not to execute cooperative operation when a hot water filling instruction is received from outside the house.
Further, the hot water supply system according to the present disclosure includes hot water filling means for filling hot water to a bathtub of a bathroom in the home, and hot water filling means when the user interface receives a hot water filling instruction which is a user instruction for starting hot water filling. and a control means for performing the filling, and a portable terminal that can be taken out of the house can be used as a user interface, and the control means controls at least the bathroom and the dressing room adjacent to the bathroom during hot water filling. It is possible to execute cooperative operation to operate the heater that heats one, and the control means executes the cooperative operation when the portable terminal capable of displaying the operating state information of the heater receives the hot water supply instruction, and the heating When a portable terminal that cannot display the operating state information of the machine receives the hot water filling instruction, the cooperative operation is not executed.

Advantageous Effects of Invention According to the present disclosure, it is possible to provide a hot water supply system that is advantageous in more appropriately performing coordinated operation of operating a heater for heating a bathroom or a dressing room when filling a bathtub with hot water.

1 is a diagram showing a hot water supply system according to Embodiment 1; FIG. 4 is a flowchart showing an example of processing executed in the hot water supply system according to Embodiment 1;

Embodiments will be described below with reference to the drawings. Elements that are common or correspond to each figure are denoted by the same reference numerals, and their explanations are simplified or omitted. In the following description, the terms "water", "hot water", and "hot water" basically mean liquid water, and can include low temperature water to high temperature water.

Embodiment 1.
FIG. 1 is a diagram showing a hot water supply system 35 according to Embodiment 1. As shown in FIG. In the following description, the inside of the building in which the hot water supply system 35 is used is called "inside the house", and the outside of the building is called "outside the house". Also, the action of supplying hot water to the bathtub 30 of the bathroom 80 in the house to fill the bathtub 30 with hot water is called "hot water filling". The hot water supply system 35 includes hot water filling means for filling hot water. Hot water supply system 35 of the present embodiment is a hot water storage type hot water supply system having hot water storage tank 8 . Note that the hot water supply system of the present disclosure is not limited to a hot water storage type hot water supply system, and can also be applied to an instantaneous hot water supply system that does not have a hot water storage tank.

The hot water supply system 35 includes a control section 36 corresponding to control means. In the present disclosure, a user instruction for starting hot water filling is referred to as a "hot water filling instruction." When the user interface accepts the hot water filling instruction, the control unit 36 executes hot water filling. In the present embodiment, kitchen remote controller 48 , bathroom remote controller 49 , and portable terminal 70 can be used as user interfaces for hot water supply system 35 . However, in the present disclosure, for example, a smart speaker, television, or the like provided in the home may be used as a user interface for the hot water supply system 35 .

The kitchen remote controller 48 is installed in the kitchen of the house. Bathroom remote controller 49 is installed in bathroom 80 . The kitchen remote controller 48 and the bathroom remote controller 49 are wired to the controller 36 . Each of the kitchen remote controller 48 and bathroom remote controller 49 is an example of a wired remote controller.

A user carries the mobile terminal 70 . The user can take the mobile terminal 70 out of the house. The mobile terminal 70 may be, for example, a smart phone, a tablet terminal, or a wearable terminal.

A bathroom heater 60 for heating the bathroom 80 is provided for the bathroom 80. - 特許庁Operation of the bathroom heater 60 during filling of hot water is hereinafter referred to as "coordinated operation". The control unit 36 can execute coordinated operation according to user settings.

Although not shown, a dressing room heater for heating the dressing room adjacent to the bathroom 80 may be provided. The coordinated operation in the present disclosure may operate both the bathroom heater 60 and the dressing room heater when filling up with hot water. Further, the coordinated operation in the present disclosure may be such that instead of the bathroom heater 60, the dressing room heater is operated when filling up with hot water. In that case, the bathroom heater 60 may not be provided. Hereinafter, the operation of the bathroom heater 60 or the dressing room heater may be simply referred to as "heating operation". Also, hereinafter, for convenience of explanation, at least one of the bathroom heater 60 and the dressing room heater will simply be referred to as the "bathroom heater 60". That is, in the following description, the description "bathroom heater 60" can be read as "dressing room heater".

According to the linked operation, the temperature of the bathroom 80 or the dressing room can be raised by the heating operation before bathing, so that the occurrence of heat shock in the bather can be reliably suppressed.

The control unit 36 is configured to execute cooperative operation when receiving a hot water filling instruction from inside the home, and not to execute cooperative operation when receiving a hot water filling instruction from outside the home. If the hot water filling instruction is received from outside the home, it is considered that the user is out of the house, so the user is in a situation where he or she does not know what is going on inside the home. In such a situation, if the heating operation is performed while hot water is being filled, the user cannot recognize that the heating operation is being performed. Therefore, unnecessary or inappropriate heating operation may be performed. On the other hand, in the present embodiment, the control unit 36 does not execute the coordinated operation when receiving a hot water filling instruction from outside the house, thereby preventing unnecessary or inappropriate heating operation from being performed. It can definitely be prevented.

When the kitchen remote controller 48 or the bathroom remote controller 49 installed in the house receives the hot water filling instruction, the control unit 36 executes cooperative operation. In this case, it is considered that the user is in the house, so that the heating operation can be properly executed by the coordinated operation.

When the portable terminal 70 receives the hot water filling instruction at home, the control unit 36 executes cooperative operation. In this case, it is considered that the user in the house has used the portable terminal 70 to issue a hot water filling instruction, so that the heating operation can be properly executed by the coordinated operation.

On the other hand, when the portable terminal 70 receives the hot water filling instruction outside the home, the control unit 36 does not execute the coordinated operation. In this case, it is considered that the user, who is out of the house, has used the portable terminal 70 to issue a hot water filling instruction, which corresponds to the hot water filling instruction from outside the home.

The mobile terminal 70 may have a function of displaying the operating state information of the bathroom heater 60 on the display. Such a portable terminal 70 is hereinafter referred to as "a portable terminal 70 capable of displaying operating state information of the bathroom heater 60". The operating state information of the bathroom heater 60 may include at least one information of on/off, set room temperature, current room temperature, air volume, and air direction of the bathroom heater 60, for example.

When the portable terminal 70 capable of displaying the operating state information of the bathroom heater 60 receives the hot water filling instruction, the control unit 36 performs the coordinated operation even if the hot water filling instruction is from outside the home. may be executed. If the portable terminal 70 can display the operating state information of the bathroom heater 60, the user can recognize the operating state of the bathroom heater 60 even when the user is out. Therefore, since the heating operation can be appropriately performed, it is easier to use when the linked operation is performed.

The mobile terminal 70 may not have the function of displaying the operating state information of the bathroom heater 60 on the display. Such a portable terminal 70 is hereinafter referred to as "a portable terminal 70 incapable of displaying the operating state information of the bathroom heater 60". When the mobile terminal 70 that cannot display the operation state information of the bathroom heater 60 receives the hot water filling instruction outside the home, the control unit 36 does not execute the coordinated operation. As a result, unnecessary or inappropriate heating operation can be reliably prevented. The control unit 36 can determine, for example, based on a signal from the mobile terminal 70 whether the mobile terminal 70 can display the operating state information of the bathroom heater 60 or not.

The mobile terminal 70 may have a function that allows the user to remotely control the bathroom heater 60 . Such a portable terminal 70 is hereinafter referred to as "a portable terminal 70 capable of remotely controlling the bathroom heater 60". The portable terminal 70 capable of remotely controlling the bathroom heater 60 may be configured so that the user can change at least one of on/off, set room temperature, air volume, and air direction of the bathroom heater 60. .

When the portable terminal 70 capable of remotely controlling the bathroom heater 60 receives a hot water filling instruction, the control unit 36 executes cooperative operation even if the hot water filling instruction is from outside the home. can be If the user can remotely control the bathroom heater 60 using the portable terminal 70, the heating operation can be appropriately performed even when the user is out of the house. is. For example, after the heating operation is started by the coordinated operation, the user can use the mobile terminal 70 to adjust the set room temperature, air volume, air direction, etc. of the bathroom heater 60 to be more appropriate. can be done.

The mobile terminal 70 may not have a function that allows the user to remotely control the bathroom heater 60 . Such a mobile terminal 70 is hereinafter referred to as "a mobile terminal 70 that cannot remotely control the bathroom heater 60". When the portable terminal 70, which cannot remotely control the bathroom heater 60, receives the hot water filling instruction outside the home, it is desirable that the control unit 36 does not execute the coordinated operation. As a result, unnecessary or inappropriate heating operation can be reliably prevented. The control unit 36 can determine, for example, based on a signal from the mobile terminal 70 whether the mobile terminal 70 can remotely control the bathroom heater 60 or cannot remotely control the bathroom heater 60 .

The hot water supply system 35 of the present embodiment will be further described below. The hot water supply system 35 includes a tank unit 33 and an HP unit 7 using a heat pump cycle. The HP unit 7 and the tank unit 33 are connected to each other via the HP outgoing pipe 14, the HP return pipe 15, and electric wiring (not shown). A controller 36 is built in the tank unit 33 . The operations of various valves, pumps, and the like provided in the tank unit 33 and the HP unit 7 are controlled by a control section 36 electrically connected thereto. The control unit 36 comprises, for example, a microcomputer having at least one memory and at least one processor. The control unit 36 may have a timer function for managing date and time.

The kitchen remote controller 48 and the bathroom remote controller 49 have a function of receiving user's operations relating to operation commands, setting value changes, and the like. The kitchen remote controller 48 and the bathroom remote controller 49 are equipped with a display unit for displaying information such as the state of the hot water supply system 35, an operation unit such as a user-operated switch, a speaker, a microphone, and the like. The display units of the kitchen remote controller 48 and the bathroom remote controller 49 function as notification means for informing the user of information. The kitchen remote controller 48 and the bathroom remote controller 49 in the present embodiment are provided with a display unit as notification means, but as a modification, they may be provided with other notification means such as a voice guidance device.

A bathtub 30 of a bathroom 80 is provided with a bathtub plug 50 that can be automatically opened and closed. Bathtub plug 50 is electrically connected to control unit 36 . The control unit 36 can check the open/closed state of the bathtub plug 50 and send an instruction to automatically open/close the bathtub plug 50 . In the following description, hot water in the bathtub 30 may be called "bath water." Moreover, the temperature of the bath water in the bathtub 30 is called "bathtub temperature."

The control unit 36 is connected to an external communication device 44 corresponding to communication means. The control unit 36 can perform external line communication using the external communication device 44 . An external line is, for example, an Internet line via a home broadband router. The control unit 36 may be connectable to the cloud server via the external communication device 44 .

The bathroom heater 60 includes a bathroom heater controller 61, a bathroom heater external communication device 62, and a bathroom temperature sensor 63 for detecting the temperature of the bathroom. The bathroom heater external communication device 62 may be connectable to the cloud server via the external communication device 44 . The bathroom heater 60 performs a heating operation by blowing hot air heated by a heat source such as a heater into the bathroom 80 . The bathroom heater 60 may be configured to automatically change the blowing direction of warm air, that is, the wind direction, by driving louvers. For example, when heating the bathroom 80 uniformly, the bathroom heater 60 may blow hot air toward the center of the bathroom 80 .

The control unit 36 can communicate with the bathroom heater external communication device 62 of the bathroom heater 60 via the external communication device 44 . The control unit 36 can receive information on the bathroom temperature detected by the bathroom temperature sensor 63 and information on the operating state of the bathroom heater 60 from the bathroom heater 60 . The control unit 36 can transmit a command signal to the bathroom heater external communication device 62 . The bathroom heater controller 61 controls the operating state of the bathroom heater 60 according to the command signal.

The control unit 36 can communicate with the portable terminal 70 outside or inside the home by external line communication via the external communication device 44 . The control unit 36 may transmit to the portable terminal 70 information on filling hot water, information on general hot water supply, information on heating operation, information on bathroom temperature, and the like. The control unit 36 can determine whether the mobile terminal 70 is inside the home or outside the home. For example, if the mobile terminal 70 is capable of short-range wireless communication with the external communication device 44, it may be determined that the mobile terminal 70 is inside the home, and if not, it may be determined that the mobile terminal 70 is outside the home. .

The bathroom heater external communication device 62 of the bathroom heater 60 may communicate with the mobile terminal 70 outside or inside the home by external line communication via the external communication device 44 . The bathroom heater external communication device 62 may transmit the operating state information of the bathroom heater 60 to the mobile terminal 70 . The bathroom heater external communication device 62 may receive a remote control signal from the mobile terminal 70 . The bathroom heater controller 61 controls the operation of the bathroom heater 60 according to the remote control signal.

The HP unit 7 functions as heating means for heating low-temperature water led from the hot water storage tank 8 provided in the tank unit 33 . The HP unit 7 connects the compressor 1, the water-refrigerant heat exchanger 3, the expansion valve 4, and the air heat exchanger 6 with a refrigerant pipe 5 to form a heat pump cycle. The water-refrigerant heat exchanger 3 is for exchanging heat between the refrigerant flowing through the refrigerant pipe 5 and the low-temperature water led from the tank unit 33 .

The tank unit 33 incorporates the following various parts, piping, and the like. The hot water storage tank 8 is for storing hot water. In the following description, hot water stored in the hot water storage tank 8 may be referred to as "tank water". A water inlet 8a provided at the bottom of the hot water storage tank 8 is connected to a third water supply pipe 9c. Water supplied from a water source such as tap water is regulated to a predetermined pressure by the pressure reducing valve 31 and flows into the hot water storage tank 8 through the third water supply pipe 9c. A hot water supply pipe 21 for supplying hot water stored in the hot water storage tank 8 to the outside of the hot water supply system 35 and a hot water supply pipe are connected to a branch portion 76 communicating with a hot water introduction outlet 8d provided in the upper portion of the hot water storage tank 8. 13 are connected.

Hot water heated by the HP unit 7 flows into the hot water storage tank 8 from the hot water inlet 8d, and low-temperature water from the third water supply pipe 9c flows from the water inlet 8a. Hot water is stored so that a difference occurs. A plurality of stored hot water temperature sensors 42 and 43 are attached to the surface of the hot water storage tank 8 at different heights. By detecting the temperature distribution of the hot water in the hot water storage tank 8 with these hot water temperature sensors 42 and 43, the remaining hot water amount and heat storage amount in the hot water storage tank 8 are grasped, and the HP unit 7 boils the hot water in the hot water storage tank 8. Start, stop, etc. of upper operation are controlled.

A circulation pump 12 and a bath heat exchanger 20 are built in the tank unit 33 . The circulation pump 12 is a pump for circulating hot water in various pipes, and is provided on the HP outgoing pipe 14 . The bath heat exchanger 20 exchanges heat between the fluid flowing through the primary channel 20a and the bath water flowing through the secondary channel 20b. One end of the secondary flow path 20b is connected to the bathtub 30 via a bath-going pipe 27 . The other end of the secondary flow path 20b is connected to the bathtub 30 via a bath return pipe 28. As shown in FIG. A bath circulation circuit is formed by the secondary flow path 20b, the bath going pipe 27, the bath return pipe 28, and the bathtub 30. As shown in FIG. In the middle of the bath pipe 27, there are a temperature sensor 37 for detecting the temperature of the bath water discharged from the bath heat exchanger 20, a water flow detecting means 46 for determining circulation of the bath water, and a water level of the bathtub 30. A water level sensor 47 for detection is installed. A bath circulation pump 29 for circulating the bath water and a bath return temperature sensor 38 for detecting the temperature of the bath water discharged from the bathtub 30 are installed in the middle of the bath return pipe 28.例文帳に追加

The tank unit 33 has a first water supply pipe 9 a , a second water supply pipe 9 b , a hot water mixing valve 22 , a bath mixing valve 23 , a first hot water supply pipe 24 and a second hot water supply pipe 25 . One end of the first water supply pipe 9a is connected to a water source such as tap water. The second water supply pipe 9b is branched from the middle and connected to the hot water supply mixing valve 22 and the bath mixing valve 23, respectively. The hot water supply pipe 21 is branched from the middle and connected to a hot water supply mixing valve 22 and a bath mixing valve 23, respectively.

The hot water supply mixing valve 22 and the bath mixing valve 23 are controlled by the kitchen remote controller 48 by the user by adjusting the flow rate ratio between the hot water supplied from the hot water supply pipe 21 and the low temperature water supplied from the second water supply pipe 9b. Alternatively, hot water having a set temperature set by the bathroom remote control 49 is generated and flowed into the first hot water supply pipe 24 and the second hot water supply pipe 25, respectively. The hot water whose temperature is adjusted by the hot water supply mixing valve 22 is supplied from the first hot water supply pipe 24 via the hot water supply valve 34 to the shower 82 in the bathroom 80 or a faucet such as a faucet (not shown). In the middle of the second hot water supply pipe 25, a bath solenoid valve 26 for opening and closing the second hot water supply pipe 25 and a bath flow sensor 45 for detecting the flow rate of hot water passing through the second hot water supply pipe 25 are provided. The hot water whose temperature is adjusted by the bath mixing valve 23 is supplied from the second hot water supply pipe 25 to the bathtub 30 via the bath solenoid valve 26, the bath flow sensor 45, the bath going pipe 27, and the bath returning pipe 28.

A three-way valve 11 , a four-way valve 18 , and a heat recovery switching valve 19 are provided in the tank unit 33 . A water outlet 8b at the bottom of the hot water storage tank 8 is connected to a port a of a three-way valve 11 by a pipe 10. As shown in FIG. The outlet of the primary side flow path 20 a is connected to the b port of the three-way valve 11 by a pipe 73 . The c port of the three-way valve 11 is connected to the water inlet of the water-refrigerant heat exchanger 3 by the HP going pipe 14 . The hot water outlet of the water-refrigerant heat exchanger 3 is connected to the c port of the four-way valve 18 by the HP return pipe 15 .

The hot water storage tank 8 is provided with a hot water inlet 8c and a heat recovery outlet 8e. A heat recovery outlet 8 e is located at the bottom of the hot water storage tank 8 . The hot water inlet 8c is positioned higher than the heat recovery outlet 8e. A port a of the four-way valve 18 is connected to the hot water inlet 8c through a pipe 16 . A branch portion 71 is formed in the HP going pipe 14 on the downstream side of the circulation pump 12 . The b port of the four-way valve 18 is connected to the branch portion 71 through the pipe 17 . The d port of the four-way valve 18 is connected to the branch portion 76 by the hot water supply pipe 13 .

The a port of the heat recovery switching valve 19 is connected by a pipe 72 to the inlet of the primary flow path 20a. A port b of the heat recovery switching valve 19 is connected by a pipe 74 to a branch portion 75 formed in the middle of the hot water supply pipe 13 . The c port of the heat recovery switching valve 19 is connected to the heat recovery outlet 8e by a pipe 77. As shown in FIG.

Next, the hot water filling operation for filling the bathtub 30 with hot water will be described. In the hot water filling operation, the controller 36 controls the bath mixing valve so that the hot water supply temperature detected by the bath going temperature sensor 37 or the bath returning temperature sensor 38 is equal to the set temperature set by the user as the desired bath water temperature. By controlling 23, hot water at the set temperature can be stored in the bathtub 30. - 特許庁When the set amount of hot water is supplied, the control unit 36 closes the bath solenoid valve 26 to end the hot water filling operation.

The control unit 36 may continue to perform the automatic bath operation that keeps the temperature of the bathtub constant after the hot water filling operation is completed. In the automatic bath operation, the control unit 36 controls, for example, as follows. The bath circulation pump 29 is operated periodically (for example, every 10 minutes) to circulate the bath water in the bathtub 30 through the bath circulation circuit, and the temperature of the bath is detected by the bath return temperature sensor 38 . If the bathtub temperature is lower than the set temperature, the reheating operation is started, and if the bathtub temperature rises to the set temperature, the reheating operation is stopped. The control unit 36 continues automatic bath operation until the user manually stops the bath or until the set time elapses. Automatic bath operation corresponds to heat-retaining operation.

During the reheating operation, the control unit 36 controls, for example, as follows. The circulation pump 12 and the bath circulation pump 29 are operated. High-temperature tank water flowing out from the hot water inlet 8d of the hot water storage tank 8 passes through the branch portion 76, the hot water supply pipe 13, the branch portion 75, the pipe 74, the heat recovery switching valve 19, and the pipe 72 to the primary side flow path 20a. flow into The bath water heated by the bath heat exchanger 20 flows into the bath tub 30 through the bath going pipe 27. - 特許庁In the bath heat exchanger 20, the heat of the tank water is taken away by the bath water, thereby lowering the temperature of the tank water. The tank water whose temperature has decreased enters the hot water storage tank 8 through the pipe 73, the three-way valve 11, the HP outgoing pipe 14, the circulation pump 12, the branch 71, the pipe 17, the four-way valve 18, the pipe 16, and the hot water inlet 8c. influx.

FIG. 2 is a flowchart showing an example of processing executed in hot water supply system 35 according to the first embodiment. Description will be made below with reference to FIG. When any of the kitchen remote controller 48, the bathroom remote controller 49, and the portable terminal 70 receives a hot water filling instruction from the user, the controller 36 opens the bath electromagnetic valve 26 and starts hot water filling in step S1. Subsequently, in step S2, the control unit 36 determines whether or not cooperative operation is possible as described above. When it is determined that the cooperative operation is possible, the process proceeds to step S3, and the control unit 36 starts the heating operation. That is, the control unit 36 instructs the bathroom heater 60 to perform heating operation from the external communication device 44 through the bathroom heater external communication device 62 . The bathroom heater 60 which receives this starts heating operation. After step S3, the process proceeds to step S4. On the other hand, if it is determined in step S2 that the cooperative operation is impossible, the control unit 36 skips step S3 and proceeds to step S4 without starting the heating operation.

In step S4, the control unit 36 confirms whether or not hot water filling has been completed. That is, control unit 36 determines whether the amount of hot water in bathtub 30 has reached the set amount of hot water. If hot water filling is not yet completed, the process proceeds to step S5, and if hot water filling is completed, the process proceeds to step S6.

In step S5, it is checked whether or not there is an instruction to finish filling hot water. The hot water filling end instruction is a user instruction to end hot water filling. If any of kitchen remote controller 48, bathroom remote controller 49, and portable terminal 70 receives the hot water filling end instruction, control unit 36 finishes hot water filling and proceeds to step S6. If there is no hot water filling end instruction, the process returns to step S4.

In step S<b>6 , since the filling of hot water is completed, the control unit 36 instructs the bathroom heater 60 to end the heating operation from the external communication device 44 through the bathroom heater external communication device 62 . The bathroom heater 60 having received this terminates the heating operation. Note that when hot water filling end instruction is received in step S5 and hot water filling is finished, the control unit 36 stops the heating operation in step S6 regardless of what kind of user interface receives the hot water filling end instruction. For example, even if the portable terminal 70 that cannot display the operation state information of the bathroom heater 60 receives the hot water filling end instruction, even if the portable terminal 70 that cannot remotely control the bathroom heater 60 receives the hot water filling end instruction. , the control unit 36 stops the heating operation in step S6. This is because, for example, when an instruction to stop filling hot water is issued from outside the home, if only the heating operation continues, it is not convenient.

In the example of FIG. 2, the control unit 36 stops the heating operation when the hot water filling is completed. The control unit 36 may stop the heating operation when the automatic bath operation ends. Alternatively, when the user interface such as the bathroom remote control 49 or the mobile terminal 70 receives a user instruction to stop the automatic bath operation during the automatic bath operation, the control unit 36 starts the heating operation. You can stop it. At this time, the control unit 36 stops the heating operation regardless of which user interface receives the instruction to end the automatic bath operation. For example, even if the portable terminal 70 unable to display the operating state information of the bathroom heater 60 receives the automatic bath operation end instruction, the portable terminal 70 unable to remotely control the bathroom heater 60 receives the automatic bath operation end instruction. Even in this case, the control unit 36 stops the heating operation. This is because, for example, when an instruction to end the automatic bath operation is issued from outside the home, if only the heating operation continues, it is not convenient.

Hot water supply system 35 may be configured such that a user can set an out-of-home operation cooperation mode. For example, using the kitchen remote controller 48, the bathroom remote controller 49, or the mobile terminal 70, the user may be able to set whether to enable or disable the remote operation cooperation mode. When the out-of-home operation cooperation mode is set to be valid, when the user interface of the mobile terminal 70 or the like outside the home receives the hot water filling instruction, regardless of the type of the user interface , the coordinated operation is executed regardless of which user interface receives the hot water filling instruction. For example, even if the portable terminal 70 that cannot display the operation state information of the bathroom heater 60 receives the hot water filling instruction, or if the portable terminal 70 that cannot remotely control the bathroom heater 60 receives the hot water filling instruction, the control The unit 36 executes coordinated operation.

Restricting execution of cooperative operation in response to hot water filling instructions from outside the home may reduce usability in the following cases, for example. Assume that an elderly parent lives in a dwelling having a bathroom 80, the children's household of the elderly parents lives in a separate dwelling, and the children's household takes care of the elderly parents. When executing coordinated operation at the elderly parent's house, it would be inconvenient if the person in the child's household had to go to the elderly parent's residence and give instructions to fill the hot water. On the other hand, by setting the out-of-home operation cooperation mode to be effective, the person in the child household can reliably execute the cooperative operation by issuing a hot water filling instruction from the portable terminal 70 from his/her residence. . Therefore, there is no need to bother to go to the residence of the elderly parent.

In the unlikely event that a wired remote controller such as the kitchen remote controller 48 or the bathroom remote controller 49 fails, the portable terminal 70 may be used as a substitute for the wired remote controller. The control unit 36 does not execute cooperative operation when the portable terminal 70 receives the instruction to fill hot water when the wired remote controller is normal, and when the wired remote controller has an abnormality such as a failure, the portable terminal 70 fills hot water. The coordinated operation may be executed when the instruction is received. As a result, when the wired remote controller fails and the portable terminal 70 is used as a substitute means, cooperative operation can be reliably performed, thereby improving convenience. Note that the control unit 36 may determine whether the wired remote controller is normal or abnormal, for example, based on a response signal from the wired remote controller.

In the above-described embodiment, an example was described in which information is aggregated in the control unit 36 of the water heater, and the control unit 36 determines and instructs cooperative operation. The determination and instruction of the coordinated operation may be performed, or the bathroom heater control unit 61 may perform the determination and instruction of the coordinated operation.

1 compressor 3 water refrigerant heat exchanger 4 expansion valve 5 refrigerant piping 6 air heat exchanger 7 HP unit 8 hot water storage tank 8a water inlet 8b water outlet 8c hot water inlet 8d hot water Introduction outlet 8e Heat recovery outlet 9a First water supply pipe 9b Second water supply pipe 9c Third water supply pipe 10 Pipe 11 Three-way valve 12 Circulation pump 13 Hot water supply pipe 14 HP outgoing pipe 15 HP return Piping 16 Piping 17 Piping 18 Four-way valve 19 Heat recovery switching valve 20 Heat exchanger for bath 20a Primary side flow path 20b Secondary side flow path 21 Hot water supply pipe 22 Mixing valve for hot water supply 23 Bath 24 First hot water supply pipe 25 Second hot water supply pipe 26 Solenoid valve for bath 27 Bath going pipe 28 Bath return pipe 29 Bath circulation pump 30 Bathtub 31 Pressure reducing valve 33 Tank unit 34 Hot water supply faucet 35 hot water supply system 36 controller 37 bath going temperature sensor 38 bath returning temperature sensor 42, 43 stored hot water temperature sensor 44 external communication device 45 bath flow rate sensor 46 water flow detection means 47 water level sensor 48 Kitchen remote controller 49 Bathroom remote controller 50 Bathtub plug 60 Bathroom heater 61 Bathroom heater controller 62 Bathroom heater external communication device 63 Bathroom temperature sensor 70 Portable terminal 71 Branch 72 Piping 73 Piping 74 Piping 75 Branch 76 Branch 77 Piping 80 Bathroom 82 Shower

Claims (9)

a hot water supply means for supplying hot water to a bathtub of a bathroom in the home;
control means for executing the hot water filling when the user interface receives a hot water filling instruction, which is a user instruction for starting the hot water filling;
with
The control means is capable of executing coordinated operation of operating a heater for heating at least one of the bathroom and a dressing room adjacent to the bathroom when the hot water is filled,
The control means is configured to execute the cooperative operation when receiving the hot water filling instruction from inside the home, and not to execute the cooperative operation when receiving the hot water filling instruction from outside the home. hot water system. The mobile terminal that can be taken outside the home can be used as the user interface,
wherein said portable terminal executes said cooperative operation when said portable terminal receives said instruction for filling hot water inside said home, and does not execute said cooperative operation when said portable terminal receives said instruction for filling hot water outside said home. 1. The hot water supply system according to 1. The portable terminal that can be taken outside the home can be used as the user interface,
When the portable terminal capable of displaying the operation state information of the heater executes the coordinated operation when receiving the hot water filling instruction outside the home, the portable terminal incapable of displaying the operation state information of the heater. 3. The hot water supply system according to claim 1, wherein the coordinated operation is not executed when receiving the hot water supply instruction outside the home. a hot water supply means for supplying hot water to a bathtub of a bathroom in the home;
control means for executing the hot water filling when the user interface receives a hot water filling instruction, which is a user instruction for starting the hot water filling;
with
A mobile terminal that can be taken out of the house can be used as the user interface,
The control means is capable of executing coordinated operation of operating a heater for heating at least one of the bathroom and a dressing room adjacent to the bathroom when the hot water is filled,
The control means executes the coordinated operation when the portable terminal capable of displaying the operating state information of the heater receives the instruction to fill the hot water, and the portable terminal capable of displaying the operating state information of the heater. A hot water supply system configured not to execute the cooperative operation when a terminal receives the hot water filling instruction. The mobile terminal that can be taken outside the home can be used as the user interface,
When the portable terminal capable of remotely controlling the heater receives the instruction to fill the hot water outside the home, the cooperative operation is executed, and the portable terminal unable to remotely control the heater is outside the home. 5. The hot water supply system according to any one of claims 1 to 4, wherein the coordinated operation is not executed when a hot water filling instruction is received. A wired remote controller installed in the home can be used as the user interface,
6. The hot water supply system according to any one of claims 1 to 5, wherein the coordinated operation is executed when the wired remote controller receives the hot water filling instruction. After the start of the linked operation, when the filling of the hot water ends; when after the filling of the hot water, the heat retention operation for keeping the hot water in the bathtub finished; and when a user instruction to stop the heat retention operation is received. 7. The hot water supply system according to any one of claims 1 to 6, wherein the control means stops the operation of the heater in either case. The user can set the remote operation cooperation mode,
When the out-of-home operation cooperation mode is set, when the user interface outside the home receives the hot water filling instruction, the request to execute the cooperative operation regardless of the type of the user interface. The hot water supply system according to any one of claims 1 to 7. each of the wired remote controller installed in the home and the portable terminal that can be taken out of the home can be used as the user interface;
when the wired remote controller is normal and the portable terminal receives the hot water filling instruction, the cooperative operation is not executed;
9. The hot water supply system according to any one of claims 1 to 8, wherein when the wired remote controller has an abnormality and the portable terminal receives the hot water filling instruction, the coordinated operation is performed.

Images