JP7377724B2 - bath system - Google Patents

Description

The present invention relates to a bath system in which a bathtub cleaning device and a water heater can operate in conjunction with each other.

Conventionally, a bathtub cleaning device and a water heater have been enabled to communicate with each other, and for example, the bathtub cleaning device and the water heater have been operated in conjunction with each other, such as having the water heater perform a hot water filling operation following the completion of a bathtub cleaning operation by the bathtub cleaning device. Bath systems that enable this are known (for example, Patent Documents 1 and 2).

Japanese Patent Application Publication No. 10-267401 Japanese Patent Application Publication No. 2007-155251

In the conventional bath system, the communication standards used in each device, such as the bathtub cleaning device and the water heater, are generally proprietary to the manufacturer. Therefore, if the bathtub cleaning device and the water heater are made by different manufacturers, the communication standards of each device are different and mutual communication is not possible between the devices, so it is necessary to operate the bathtub cleaning device and water heater in conjunction with each other. It was not possible to do so, and driving instructions had to be given individually, making it less convenient.

The present invention has been made in view of the above circumstances, and even if the communication standards used by the bathtub cleaning device and the water heater are different, it is possible to realize the linked operation of the bathtub cleaning device and the water heater. The purpose is to provide a bath system that

The bath system according to the present invention includes:
A water heater that performs a hot water filling operation that supplies a predetermined amount of hot water to the bathtub, a remote control that instructs the water heater to perform a hot water filling operation, and a bathtub cleaning device that sprays cleaning water into the bathtub to clean the bathtub. In a bath system including a bathtub cleaning device that executes operation,
The remote control and the bathtub cleaning device have an HA terminal, and are connected to each other so that they can communicate a control signal serving as operation instruction information for the hot water filling operation and a monitor signal serving as execution information for the hot water filling operation via the HA terminal. The structure is as follows.

The HA (home automation) terminal is a terminal that complies with the JEM-A1427 standard defined by the Japan Electrical Manufacturers Association, and is capable of communicating control signals that control the ON/OFF of devices and monitor signals that indicate the operating status of the device. shall be. The above standard is a common communication standard regardless of device manufacturer, and originally, by connecting the HA terminal installed in the device to an IFU (interface unit), for example, it can be used to connect from home to a communication terminal such as a smartphone from outside the home. It is possible to control ON/OFF of the equipment in the communication terminal and monitor the operating status of the equipment on the communication terminal side.

According to the present invention, by connecting the HA terminal mounted on the remote control to the bathtub cleaning device, they can communicate with each other even if the bathtub cleaning device and the water heater are products from different manufacturers whose communication standards do not match. It becomes possible to do so. Thereby, the bathtub cleaning device and the water heater can perform linked operations by communicating operation instruction information for the hot water filling operation and execution information for the hot water filling operation via the HA terminal. Therefore, there is no need to separately operate the bathtub cleaning device and the water heater, improving convenience for the user.

In the first aspect of the present invention,
Equipped with an automatic drain plug that automatically opens and closes the drain plug of the bathtub,
When the bathtub cleaning device is instructed to perform a cleaning hot water filling operation in which the water heater performs hot water filling operation after the bathtub cleaning operation, the bathtub cleaning device opens the automatic drain valve and executes the bathtub cleaning operation, and performs the bathtub cleaning operation. After the completion of the process, the automatic drain valve is closed, and a control signal is transmitted to the remote control via the HA terminal so that the operation instruction information for the hot water filling operation becomes the hot water filling start instruction information,
The remote control is configured to instruct the water heater to perform a hot water filling operation when receiving a control signal serving as the hot water filling start instruction information from the bathtub cleaning device via the HA terminal.

According to this configuration, even if the bathtub cleaning device and the water heater are products of different manufacturers whose communication standards do not match, the bathtub cleaning device and the water heater can perform the cleaning hot water filling operation that executes the hot water filling operation after the bathtub cleaning operation, and the user can convenience will be improved.

In the second aspect of the present invention,
When the bathtub cleaning device receives a monitor signal from the remote controller via the HA terminal during execution of the bathtub cleaning operation, which is execution information of the hot water filling operation indicating that the water heater is executing the hot water filling operation, It has a configuration that transmits a control signal in which the operation instruction information for the hot water filling operation becomes hot water filling stop instruction information to the remote controller via the HA terminal,
The remote control is configured to instruct the water heater to stop the hot water filling operation when receiving a control signal serving as the hot water filling stop instruction information from the bathtub cleaning device via the HA terminal .

According to this configuration, even if the bathtub cleaning device and the water heater are products from different manufacturers whose communication standards do not match, it is possible to avoid the hot water filling operation being performed during the bathtub cleaning operation, and the user can convenience will be improved.

In the third aspect of the present invention,
The bathtub cleaning device receives an instruction to execute a bathtub cleaning operation while receiving a monitor signal indicating that the water heater is performing a hot water filling operation from the remote controller via the HA terminal and serving as execution information for the hot water filling operation. If this is done, the instruction to execute the bathtub cleaning operation is invalidated .

According to this configuration, even if the bathtub cleaning device and water heater are products from different manufacturers whose communication standards do not match, it is possible to avoid the bathtub cleaning operation being performed during the hot water filling operation, and the user can convenience will be improved.

FIG. 1 is a schematic diagram showing the overall configuration of a bath system according to an embodiment. It is a flow chart for explaining operation of bathtub cleaning operation. FIG. 3 is a schematic diagram showing control signal and monitor signal pins at the HA terminal. It is a timing chart which shows the state of hot water filling operation, a control signal, and a monitor signal. It is a flowchart for explaining the operation of washing hot water filling operation. It is a flowchart for explaining the operation of the bathtub cleaning device during operation standby. It is a flowchart for explaining the operation of hot water filling operation of the water heater.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, the bath system 1 of the embodiment mainly includes a water heater 2, a kitchen remote control 3 for remotely controlling the water heater 2, a bathtub 4, and a bathtub cleaning device 5. The kitchen remote control 3 and the control unit 52 of the bathtub cleaning device 5 are connected to each other via HA terminals 71 and 72 so as to be able to communicate with each other.

The water heater 2 includes a burner, a heat exchanger, etc. (not shown) inside the can body. The water heater 2 performs a hot water supply operation in which fuel gas supplied from a gas supply pipe 21 is combusted in a burner, water supplied to a water supply pipe 22 is heated by a heat exchanger, and hot water is discharged from a hot water supply pipe 23, and the bathtub 4 is circulated. A hot water filling operation that supplies a predetermined amount of hot water heated by a heat exchanger to the bathtub 4 via the bath-going pipe 24 and the bath-returning pipe 25 connected to the adapter 41; A reheating operation in which the heat exchanger heats the heat while circulating it through the pipe 25 is performed.

The water heater 2 also includes a control section (not shown) for controlling the operation of the water heater 2. This control unit controls operations such as hot water supply operation, hot water filling operation, and reheating operation. A kitchen remote controller 3 and a bathroom remote controller 27 for remotely controlling the water heater 2 are connected to the control unit via communication lines. The kitchen remote control 3 is provided with an operation switch 31 that enables hot water supply operation, an automatic switch 32 that instructs execution of hot water filling operation, and the like. The bathroom remote control 27 is provided with an operation switch 271, an automatic switch 272, and a reheat switch 273 for instructing execution of reheat operation.

A circulation adapter 41 is installed at a predetermined position on the side wall of the bathtub 4, and an automatic drain plug 6 and a cleaning nozzle 42 of an automatic opening/closing drive control type are installed on the bottom wall. On the upper flange wall of the bathtub 4, an opening/closing drive mechanism 61 for the automatic drain plug 6 and a detergent tank 53 are installed.

The bathtub cleaning device 5 includes a cleaning unit 51, and executes a bathtub cleaning operation in which the bathtub 4 is automatically cleaned by operating the cleaning unit 51 to spray hot water or cleaning water from the cleaning nozzle 42 into the bathtub 4. . The cleaning unit 51 is equipped with a pipe (not shown) in which a valve mechanism is arranged, and this pipe has a connection for introducing hot water into the cleaning pipe 55 from the hot water outlet pipe 23 of the water heater 2. A pipe 26 , a washing pipe 55 connected to the washing nozzle 42 and supplying hot water and washing water to the washing nozzle 42 , and a detergent drawn out from the lower part of the detergent tank 53 to mix the detergent undiluted solution in the detergent tank 53 into the washing pipe 55 A supply pipe 54 is connected.

The bathtub cleaning device 5 also includes a control unit 52 for supplying power to the bathtub cleaning device 5 and controlling the operation of the bathtub cleaning device 5. This control unit 52 is electrically connected to the cleaning unit 51 and the opening/closing drive mechanism 61 of the automatic drain valve 6, and controls operations such as bathtub cleaning operation and cleaning hot water filling operation. A cleaning remote controller 56 for remotely controlling the bathtub cleaning device 5 is connected to the control unit 52 via a communication line. The cleaning remote controller 56 is provided with a cleaning switch 58 for instructing execution of a bathtub cleaning operation, a cleaning/hot water filling switch 57 for instructing execution of a cleaning hot water filling operation for filling hot water after cleaning the bathtub, and the like. Note that the cleaning remote controller 56 may be configured to not include the cleaning/hot water filling switch 57 and to instruct execution of the cleaning hot water filling operation by special operation (for example, long press) of the cleaning switch 58.

The bathtub cleaning operation by the bathtub cleaning device 5 will be explained below.
As shown in FIG. 2, in the bathtub cleaning operation, the following steps are performed in order.
When the control unit 52 instructs execution of the bathtub cleaning operation in response to a switch operation of the cleaning remote control 56, first, the automatic drain valve 6 of the bathtub 4 is opened (step S1), and waits for a predetermined drainage waiting time to elapse. (Step S2) A drainage process is performed to drain the bathtub water in the bathtub 4. Next, a preliminary cleaning process is performed in which the on-off valve of the piping in the cleaning unit 51 is opened (step S3) and hot water from the water heater 2 is injected from the cleaning nozzle 42 onto the inner wall of the bathtub 4 through the cleaning pipe 55. After jetting hot water from the cleaning nozzle 42 for a predetermined pre-washing time (step S4), the on-off valve is closed (step S5) to stop the jetting of hot water, and a predetermined pre-washing standby time has elapsed. After waiting (step S6), the pre-cleaning process is completed.

When the pre-washing step is completed, the on-off valve of the pipe in the washing unit 51 and the detergent valve of the detergent supply pipe 54 are opened (steps S7 and S8), and the detergent stock solution in the detergent tank 53 is mixed into the hot water in the pipe. A cleaning process is performed in which the washed water is injected from the cleaning nozzle 42 onto the inner wall of the bathtub 4 through the cleaning pipe 55. After jetting the cleaning water from the cleaning nozzle 42 for a predetermined cleaning time (step S9), the detergent valve and the on-off valve are closed (steps S10 and S11) to stop the jetting of the cleaning water and perform the predetermined cleaning. The cleaning operation is performed a plurality of times (steps S13, S14) while waiting for the waiting time to elapse (step S12), and the cleaning process is completed.

When the cleaning process is completed, the on-off valve of the piping in the cleaning unit 51 is opened (step S15), and a rinsing process is performed in which hot water from the water heater 2 is injected from the cleaning nozzle 42 onto the inner wall of the bathtub 4 through the cleaning pipe 55. After hot water is jetted from the cleaning nozzle 42 for a predetermined rinsing time (step S16), the on-off valve is closed (step S17) to stop the hot water jetting, and the rinsing process is completed. The bathtub cleaning operation is completed with the completion of this rinsing step.

By the way, in order to cause the water heater 2 to continue to perform the hot water filling operation after the bathtub cleaning operation is completed, it is necessary to connect the bathtub cleaning device 5 and the water heater 2 in a communicable manner so that they work together. If the bathtub cleaning device 5 and the water heater 2 are products from different manufacturers whose communication standards do not match, it is not possible to communicate with each other between the devices, and the bathtub cleaning device 5 and the water heater 2 cannot operate in conjunction with each other. , they had no choice but to operate individually and independently.

The present invention was originally developed for home automation (HA) terminals (defined by the Japan Electrical Manufacturers Association) that enable ON/OFF control of devices in the home from outside via a public communication line using a communication terminal such as a smartphone. As a new method of using the JEM-A1427 standard, this HA terminal is used to enable bathtub cleaning device 5 and water heater 2 to communicate with each other and work together even if they are products from different manufacturers whose communication standards do not match. This realizes a new configuration of the system 1.

That is, in the bath system 1 of the embodiment, the kitchen remote control 3 and the control unit 52 of the bathtub cleaning device 5 are provided with HA terminals 71 and 72, and are interconnected by connecting the communication cable 73 to each HA terminal 71 and 72. Connect to communicably. This allows the bathtub cleaning device 5 and water heater 2 to operate in conjunction with each other.

The HA (home automation) terminal is a terminal based on the JEM-A1427 standard defined by the Japan Electrical Manufacturers Association, and the standard is a common communication standard regardless of equipment manufacturer. As shown in FIG. 3, the HA terminals 71 and 72 have pins C1 and C2 for control signals and pins M1 and M2 for monitor signals, and a photocoupler is disposed on the side that becomes the controller. Through the terminals 71 and 72, ON/OFF control of the device can be performed using control signals, and the operating state of the device can be confirmed using a monitor signal. In the present embodiment, the HA terminal 72 of the kitchen remote controller 3 and the HA terminal 71 of the control unit 52 of the bathtub cleaning device 5 are connected to each other through a communication cable 73 at the control signal pins C1 and C2, and at the same time, each monitor Signal pins M1 and M2 are connected to each other.

The control unit 52 is on the controller side, and sends a control signal to the kitchen remote controller 3 via the HA terminals 71 and 72 to instruct the water heater 2, which is the controlled object, to start or stop the hot water filling operation. It is configured to receive a monitor signal from the kitchen remote controller 3 via terminals 71 and 72 to monitor the operating state of the hot water filling operation in the water heater 2 (while the hot water filling operation is in progress or while the hot water filling operation is stopped). . In addition, in the hot water filling operation, when a heat retention operation is performed to maintain the temperature of the hot water in the bathtub 4 at a constant temperature for a predetermined heat retention time after the supply of a predetermined amount of hot water is completed, a monitor signal is sent from the kitchen remote controller 3 even during this heat retention operation. The configuration is such that the information is sent.

Next, a control method via the HA terminals 71 and 72 will be explained.
As shown in FIG. 4, when the kitchen remote controller 3 or the bathroom remote controller 27 turns on the automatic switch 32 or 272 that starts the hot water filling operation, the water heater 2 executes the hot water filling operation, and the kitchen remote controller 3 starts the hot water filling operation. During execution, a monitor signal is output (monitor signal ON is transmitted) ((A) in FIG. 4). When the hot water filling operation in the water heater 2 is completed, the kitchen remote control 3 stops outputting the monitor signal (sends the monitor signal OFF) by stopping the hot water filling operation ((B) in FIG. 4). That is, the monitor signal becomes execution information for execution/stop of the hot water filling operation by the water heater 2.

When the kitchen remote controller 3 receives a control signal from the control unit 52 via the HA terminals 71 and 72 (control signal ON) while the water heater 2 is not in operation, the control signal at this time is This becomes the hot water filling start instruction information that instructs to start the hot water filling operation in step 2, and instructs the water heater 2 to start the hot water filling operation ((C) in FIG. 4). Thereby, the water heater 2 performs hot water filling operation. Then, when the kitchen remote control 3 receives a control signal from the control unit 52 (control signal ON) via the HA terminals 71 and 72 while the water heater 2 is performing hot water filling operation, the control signal at this time is as follows. This becomes hot water filling stop instruction information that instructs the water heater 2 to stop the hot water filling operation, and instructs the water heater 2 to stop the hot water filling operation ((D) in FIG. 4). Thereby, the water heater 2 stops executing the hot water filling operation. That is, the control signal becomes operation instruction information for the water heater 2 to execute/stop the hot water filling operation.

When the water heater 2 is in hot water filling operation, the kitchen remote controller 3 outputs a monitor signal (sends a monitor signal ON), and the control unit 52 receives the monitor signal via the HA terminals 71 and 72. Receive. Thereby, the control unit 52, that is, the bathtub cleaning device 5 side, can recognize that the water heater 2 is in the process of filling water by receiving the monitor signal. When the water heater 2 completes the hot water filling operation, the kitchen remote control 3 stops outputting the monitor signal (sending the monitor signal OFF), and the control unit 52 stops receiving the monitor signal via the HA terminals 71 and 72. do. As a result, the control unit 52, that is, the bathtub cleaning device 5 side, can recognize that the water heater 2 is not in the hot water filling operation since it has not received the monitor signal. In this way, the control unit 52 determines whether the water heater 2 is in the hot water filling operation (monitor signal ON) depending on whether or not the monitor signal is received from the kitchen remote controller 3 via the HA terminals 71 and 72. It is possible to recognize whether the hot water filling operation is in a stopped state (monitor signal OFF).

Next, the linked operation of the washing water filling operation via the HA terminals 71 and 72 will be explained.
As shown in FIG. 5, when the cleaning/hot water filling switch 57 of the cleaning remote controller 56 is turned ON to perform the cleaning hot water filling operation, the control unit 52 controls the automatic drain valve 6 to open (step S21). At the same time, the cleaning unit 51 is controlled to start bathtub cleaning operation (step S22). Thereby, the bathtub cleaning operation is executed with the automatic drain valve 6 opened.

While the bathtub cleaning operation is being executed ("NO" in step S23), the control unit 52 monitors whether or not a monitor signal is received from the kitchen remote controller 3 via the HA terminals 71 and 72 (step S24). The control unit 52 recognizes the received information of the monitor signal as hot water filling operation execution information indicating that the water heater 2 is performing a hot water filling operation.

When the control unit 52 receives a monitor signal from the kitchen remote controller 3 via the HA terminals 71 and 72 during execution of the bathtub cleaning operation ("YES" in step S24), the control unit 52 transmits the HA terminals 71 and 72 to the kitchen remote controller 3. A control signal is transmitted (step S25). In this case, the kitchen remote control 3 recognizes that the control signal is the hot water filling stop instruction information because the water heater 2 is in the hot water filling operation. Therefore, the kitchen remote controller 3 instructs the water heater 2 to stop the hot water filling operation by receiving the control signal serving as the hot water filling stop instruction information via the HA terminals 71 and 72. Thereby, the water heater 2 can stop the execution of the hot water filling operation and avoid performing the hot water filling operation during the bathtub cleaning operation. In this way, by communicatively connecting the bathtub cleaning device 5 and the water heater 2 via the HA terminals 71 and 72, it is possible to accidentally use the kitchen remote control 3 or bathroom remote control 27 to switch the hot water filling operation switch 31 or Even if 271 is turned on, it is possible to prevent the water heater 2 from performing a hot water filling operation, thereby improving convenience for the user.

When the bathtub cleaning operation is completed ("YES" in step S23), the control unit 52 controls the automatic drain valve 6 to be closed (step S26), and also controls the kitchen remote control 3 to communicate via the HA terminals 71 and 72. and transmits a control signal (step S27). In this case, the kitchen remote controller 3 recognizes that the control signal is information for instructing the start of filling water since the water heater 2 is in the process of stopping the filling operation. Therefore, when the kitchen remote controller 3 receives the control signal serving as the hot water filling start instruction information at the HA terminals 71 and 72, it instructs the water heater 2 to start the hot water filling operation. Thereby, the water heater 2 can start the hot water filling operation in a state where the bathtub cleaning operation is completed. Therefore, the bathtub cleaning device 5 and the water heater 2 can operate in conjunction with each other in that the water heater 2 performs the hot water filling operation following the completion of the bathtub cleaning operation by the bathtub cleaning device 5. In this way, even if the bathtub cleaning device 5 and the water heater 2 are products from different manufacturers whose communication standards do not match, they can communicate with each other via the HA terminals 71 and 72. 2 can be operated in conjunction with each other, improving convenience for the user.

The above is the operation when the cleaning hot water filling operation is selected (the cleaning/hot water filling switch 57 of the cleaning remote controller 56 is turned ON), but when only the bathtub cleaning operation is selected using the cleaning remote controller 56 (the cleaning switch 58 is turned ON). The operation) is performed according to the flowchart shown in FIG. 5, except that the steps S26 and S27 described above are not included.

Next, the operation via the HA terminals 71 and 72 when the bathtub cleaning device 5 is on standby will be described.
As shown in FIG. 6, while waiting for the bathtub cleaning operation, the control unit 52 of the bathtub cleaning device 5 monitors whether or not a monitor signal is received from the kitchen remote controller 3 at the HA terminals 71 and 72 (step S31). The control unit 52 recognizes the received information of the monitor signal as hot water filling operation execution information indicating that the water heater 2 is performing a hot water filling operation. Therefore, when the control unit 52 receives the monitor signal serving as the hot water filling operation execution information ("YES" in step S31), the bathtub cleaning operation by the bathtub cleaning device 5 is prohibited (step S32), and the monitor signal is not received (“NO” in step S31), the bathtub cleaning operation by the bathtub cleaning device 5 is permitted (step S35). That is, during standby, the bathtub cleaning device 5 is prohibited from performing the bathtub cleaning operation while the water heater 2 is performing the hot water filling operation, and is prohibited from performing the bathtub cleaning operation when the water heater 2 is not performing the hot water filling operation. Driving is permitted.

When the bathtub cleaning operation is prohibited (while the hot water filling operation is in progress) (step S32), even if the cleaning switch 58 or the cleaning/hot water filling switch 57 of the cleaning remote control 56 is turned on ("YES" in step S33), The control unit 52 invalidates the instruction to execute the bathtub cleaning operation (step S34). As a result, even if you accidentally turn on the cleaning switch 58 or the cleaning/filling switch 57 with the cleaning remote control 56 while the hot water filling operation is in progress, the instruction to execute the bathtub cleaning operation will be invalidated, so the instruction to execute the bathtub cleaning operation will be invalidated. It is possible to prevent a situation in which the bathtub cleaning operation is executed at any time, and the convenience for the user is improved.

When the bathtub cleaning operation is permitted (the bathtub filling operation is not in progress) (step S35), when the cleaning switch 58 or the cleaning/filling switch 57 of the cleaning remote controller 56 is turned on, the control unit 52 causes the cleaning unit 51 to The controller instructs the cleaning unit 51 to execute the bathtub cleaning operation, and the cleaning unit 51 starts the bathtub cleaning operation (step S37). Thereby, the bathtub cleaning operation can be performed while the water heater 2 is not performing the hot water filling operation.

Next, the operation of starting the hot water filling operation of the water heater 2 via the HA terminals 71 and 72 will be explained.
As shown in FIG. 7, by turning on the automatic switch 32 or 272 of the kitchen remote controller 3 or the bathroom remote controller 27 (step S41), the water heater 2 is instructed to start the hot water filling operation. The vessel 2 starts filling operation (step S43). In addition, when the bathtub cleaning device 5 is performing a cleaning hot water filling operation, upon completion of the bathtub cleaning operation, the kitchen remote control 3 is connected to the hot water filling operation from the control unit 52 of the bathtub cleaning device 5 via the HA terminals 71 and 72. By receiving the start instruction information (control signal) (step S42), the kitchen remote controller 3 instructs the water heater 2 to start the hot water filling operation, and this also causes the water heater 2 to start the hot water filling operation. (Step S43).

When the hot water filling operation is started, the kitchen remote control 3 sends hot water filling operation execution information to the control unit 52 of the bathtub cleaning device 5 via the HA terminals 71 and 72, indicating that the hot water filling operation is being executed. A monitor signal is transmitted (step S44). Thereby, the control unit 52 recognizes that the water heater 2 is performing the hot water filling operation. At this time, when the bathtub cleaning device 5 is performing the bathtub cleaning operation in the case where the hot water filling operation is performed independently rather than in conjunction with the cleaning hot water filling operation, the control unit 52 controls the HA terminal 71, A control signal serving as the hot water filling stop instruction information is transmitted to the kitchen remote control 3 via 72. Note that if the hot water filling operation is being executed following the completion of the bathtub cleaning operation by the cleaning hot water filling operation, the hot water filling operation and the bathtub cleaning operation will not conflict, so the control unit 52 will stop the hot water filling operation. A control signal serving as instruction information is never transmitted.

When the water heater 2 has just started the hot water filling operation (“NO” in step S45), the kitchen remote control 3 issues a hot water filling stop instruction as a control signal from the control unit 52 via the HA terminals 71 and 72. When the information is received ("YES" in step S48), an instruction is given to the water heater 2 to stop executing the hot water filling operation (step S49). Thereby, the water heater 2 stops the hot water filling operation. Therefore, it is avoided that the hot water filling operation is performed during the bathtub cleaning operation, and convenience for the user is improved.

On the other hand, if the bathtub cleaning device 5 is not cleaning the bathtub when the water heater 2 starts the hot water filling operation, the control unit 52 of the bathtub cleaning device 5 receives the hot water filling operation execution information from the kitchen remote controller 3 (step S44). ), the automatic drain valve 6 is controlled to be closed. As a result, hot water filling operation is executed with the automatic drain valve 6 closed.

When the supply of a predetermined amount of hot water to the bathtub 4 is completed ("YES" in step S45) and a heat retention operation is subsequently performed to keep the water temperature constant ("YES" in step S46), the predetermined heat retention time is ("YES" in step S47), the hot water filling operation is stopped (step S50), and if the warming operation is not performed ("NO" in step S46), a predetermined amount of hot water is supplied to the bathtub 4. Upon completion, the hot water filling operation is stopped (step S50). When the hot water filling operation of the water heater 2 stops, the kitchen remote control 3 sends a hot water signal to the control unit 52 of the bathtub cleaning device 5 via the HA terminals 71 and 72 to indicate that the hot water filling operation has stopped. A monitor signal serving as beam stop instruction information is transmitted (step S51). Thereby, the control unit 52 can recognize that the hot water supply operation by the water heater 2 is not being executed by stopping the output of the monitor signal. With this, the entire operation of filling water in the water heater 2 is completed. Therefore, when performing the cleaning hot water filling operation, the kitchen remote control 3 and the control unit 52 of the bathtub cleaning device 5 communicate with each other via the HA terminals 71 and 72, so that the bathtub cleaning device 5 and the water heater 2 are connected to each other. It becomes possible to perform linked operations.

Note that the present invention is not limited to the above embodiments, and various changes can be made within the scope of the claims. For example, if the bathroom remote controller 27 has an HA terminal, the bathroom remote controller 27 and the HA terminal of the control unit 52 of the bathtub cleaning device 5 may be connected for communication.

1 Bath system 2 Water heater 3 Kitchen remote control 4 Bathtub 5 Bathtub cleaning device 6 Automatic drain plug 21 Gas supply pipe 22 Water supply pipe 23 Hot water pipe 24 Bath outgoing pipe 25 Bath return pipe 26 Connection pipe 27 Bathroom remote control 31 Kitchen remote control operation switch 32 Kitchen remote control automatic switch 41 Circulation adapter 42 Cleaning nozzle 51 Cleaning unit 52 Control unit 53 Detergent tank 54 Detergent supply pipe 55 Cleaning pipe 56 Cleaning remote control 57 Cleaning/filling switch 58 Cleaning switch 61 Opening/closing drive mechanism 71 Cleaning unit HA terminal 72 HA terminal 73 of the kitchen remote control Communication cable 271 Operation switch 272 of the bathroom remote control Automatic switch 273 of the bathroom remote control Reheat switch of the bathroom remote control

Claims (3)

A water heater that performs a hot water filling operation that supplies a predetermined amount of hot water to the bathtub, a remote control that instructs the water heater to perform a hot water filling operation, and a bathtub cleaning device that sprays cleaning water into the bathtub to clean the bathtub. In a bath system including a bathtub cleaning device that executes operation,
The remote control and the bathtub cleaning device have an HA terminal, and are connected to each other so that they can communicate a control signal serving as operation instruction information for the hot water filling operation and a monitor signal serving as execution information for the hot water filling operation via the HA terminal. It has a configuration that
Equipped with an automatic drain plug that automatically opens and closes the drain plug of the bathtub,
When the bathtub cleaning device is instructed to perform a cleaning hot water filling operation in which the water heater performs hot water filling operation after the bathtub cleaning operation, the bathtub cleaning device opens the automatic drain valve and executes the bathtub cleaning operation, and performs the bathtub cleaning operation. After the completion of the process, the automatic drain valve is closed, and a control signal is transmitted to the remote control via the HA terminal so that the operation instruction information for the hot water filling operation becomes the hot water filling start instruction information,
The bath system has a configuration in which the remote controller instructs the water heater to perform a hot water filling operation when receiving a control signal serving as the hot water filling start instruction information from the bathtub cleaning device via the HA terminal. A water heater that performs a hot water filling operation that supplies a predetermined amount of hot water to the bathtub, a remote control that instructs the water heater to perform a hot water filling operation, and a bathtub cleaning device that sprays cleaning water into the bathtub to clean the bathtub. In a bath system including a bathtub cleaning device that executes operation,
The remote control and the bathtub cleaning device have an HA terminal, and are connected to each other so that they can communicate a control signal serving as operation instruction information for the hot water filling operation and a monitor signal serving as execution information for the hot water filling operation via the HA terminal. It has a configuration that
When the bathtub cleaning device receives a monitor signal from the remote controller via the HA terminal during execution of the bathtub cleaning operation, which is execution information of the hot water filling operation indicating that the water heater is executing the hot water filling operation, It has a configuration that transmits a control signal in which the operation instruction information for the hot water filling operation becomes hot water filling stop instruction information to the remote controller via the HA terminal,
The bath system has a configuration in which the remote controller instructs the water heater to stop execution of the hot water filling operation when receiving a control signal serving as the hot water filling stop instruction information from the bathtub cleaning device via the HA terminal . A water heater that performs a hot water filling operation that supplies a predetermined amount of hot water to the bathtub, a remote control that instructs the water heater to perform a hot water filling operation, and a bathtub cleaning device that sprays cleaning water into the bathtub to clean the bathtub. In a bath system including a bathtub cleaning device that executes operation,
The remote control and the bathtub cleaning device have an HA terminal, and are connected to each other so that they can communicate a control signal serving as operation instruction information for the hot water filling operation and a monitor signal serving as execution information for the hot water filling operation via the HA terminal. It has a configuration that
The bathtub cleaning device receives an instruction to execute a bathtub cleaning operation while receiving a monitor signal indicating that the water heater is performing a hot water filling operation from the remote controller via the HA terminal and serving as execution information for the hot water filling operation. A bath system having a configuration that invalidates the instruction to execute the bathtub cleaning operation when the bathtub cleaning operation is executed.

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