JP3848869B2 - Forced circulation bath - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a forced circulation puffer apparatus capable of emergency operation when a bathroom operation unit for the forced circulation puffer breaks down.
[0002]
[Prior art]
Conventionally, the bath water sucked in by the circulation pump is heated by reaching the heating means through the return path, and the heated bath water is repeatedly discharged into the bathtub through the forward path. A bath provided with a forced circulation bath pot for heating the bath water to a predetermined temperature is used. When boiling a bath equipped with such a forced circulation bath apparatus, switch on the bathroom operation part of the forced circulation bath apparatus installed in the bathroom, set the boiling temperature, The device was in operation. For this reason, when the bathroom operation unit was switched on and a failure was noticed in the bathroom operation unit, a forced operation was made after obtaining a new bathroom operation unit and replacing it with the failed bathroom operation unit.
[0003]
[Problems to be solved by the invention]
However, the time zone for trying to boil is often in the evening, for example, and even if a failure of the bathroom operation section is noticed, it is generally difficult for a dealer to handle the service. Therefore, until the new bathroom operation section was obtained, the forced circulation type bath could not be operated, and bathing had to be endured, resulting in significant inconvenience.
The present invention has been made in view of such circumstances, and forced circulation capable of performing an emergency operation of the forced circulation type tumbler device by operating the main body side of the forced circulation type tumbler device when the bathroom operation unit fails. An object of the present invention is to provide a type bath pot device.
[0004]
[Means for Solving the Problems]
A forced circulation bath apparatus according to the present invention that meets the above-mentioned object includes a forced circulation heating means for heating bath water in a bathtub, a command for setting temperature when heating the bath water, and a command for changing the set temperature. In the forced circulation type tumbler apparatus, comprising: a bathroom operation unit that performs the operation; and a control unit that stores the respective commands from the bathroom operation unit and performs operation control of the forced circulation heating unit. Detects a failure of the bathroom operation unit and outputs an abnormality signal in the event of a failure, and detects an abnormality signal from the failure diagnosis unit to confirm the connection between the bathroom operation unit and the control means An emergency operation control unit that is operable by determining the connection determination unit, and that the connection determination unit determines that the bathroom operation unit is not connected to the control unit, and controls the forced circulation heating unit; The emergency driving system Emergency operation switch is provided to instruct the operation start of the section.
Thereby, even if a bathroom operation part breaks down, until a new bathroom operation part is obtained, the forced circulation type water bath apparatus can be operated as an emergency by operating the main body side of the forced circulation type water bath apparatus.
[0005]
In the forced circulation bath apparatus according to the present invention, the emergency operation control unit is provided with a temperature management function for determining a temperature at which the bath water is heated from a history of the set temperature stored in the control means. It has been.
As a result, even when the bathroom operation unit fails and the command for the set temperature cannot be issued, the heating temperature of the bath water that is likely to be set can be set based on the history of the set temperature in the past.
[0006]
In the forced circulation bath apparatus according to the present invention, in the emergency operation control unit, when the bathroom operation unit is normal, a detection operation interval as to whether or not the reheating is repeated for keeping the bath water warm. It is preferable that a heat insulation management function is provided that repeats the detection operation of whether or not to chase at shorter intervals.
Thus, even when the bathroom operation unit is out of order and the temperature of the bath water cannot be kept, the temperature drop of the bath water can be prevented by frequently monitoring the temperature drop of the bath water.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
FIG. 1 is a block diagram showing the overall configuration of a bath provided with a forced circulation type tumbler device according to an embodiment of the present invention, and FIG. 2 is a flow diagram for explaining an operation method of the forced circulation type tumbler device. is there.
As illustrated in FIG. 1, the bath 11 includes a bathtub 12 and a forced circulation bath apparatus 10 that heats the bath water 13 of the bathtub 12. The forced circulation bath apparatus 10 includes a bathroom operation unit 14 that instructs a set temperature when the bath water 13 is heated, and a bath apparatus that heats the bath water 13 in response to an instruction from the bathroom operation unit 14. A main body 15 is provided. Further, in the bath apparatus main body 15, a forced circulation heating means 16 for heating the bath water 13 of the bathtub 12 and a control for storing an instruction from the bathroom operation unit 14 and controlling the operation of the forced circulation heating means 16. Means 17 are provided. Hereinafter, these will be described in detail.
[0008]
As shown in FIG. 1, the forced circulation heating means 16 is connected to the circulation path 20 that connects the suction port 18 and the discharge port 19 of the bath water 13 formed on the side wall of the bathtub 12, and the circulation path 20. A heat exchanger 21 is provided. Here, the suction port 18 and the discharge port 19 are formed, for example, on the same side wall of the bathtub 12, and the suction port 18 is provided on the bottom side of the bathtub 12 with respect to the discharge port 19. A circulation pump 23 is disposed in the bath return path 22 to the heat exchanger 21 that connects the suction port 18 and the inlet side of the heat exchange section 29 of the heat exchanger 21, and the bath return path 22 on the upstream side of the circulation pump 23. Includes a return thermistor 24 which is an example of a temperature sensor for measuring the temperature of the bath water 13 sucked from the suction port 18 by the circulation pump 23, and the bath water 13 toward the inlet side of the heat exchanging section 29 of the heat exchanger 21. A water flow switch 25 for detecting the flowing water is disposed. Here, as the circulation pump 23, a pump of a volute type or a cascade type is used. Further, as the water flow switch 25, a paddle type, electromagnetic type, ultrasonic type, Kalman flow type, thermistor type, water wheel type, impeller type, or differential pressure type detector can be used. In addition, a temperature at which the temperature of the bath water 13 heated by the heat exchanger 21 is measured is provided in the passage 26 to the bathtub 12 that connects the outlet side of the heat exchanger 29 of the heat exchanger 21 and the discharge port 19. An outflow thermistor 27 which is an example of a sensor is provided. In addition to the thermistor, a resistance temperature detector, a thermostat, and a thermocouple can be used as the temperature sensor.
[0009]
The heat exchanger 21 includes a gas combustion mechanism 28 that is an example of a heating source, and a heat exchange unit 29 that heats the bath water 13 with heat generated by the gas combustion mechanism 28. The gas combustion mechanism 28 includes a gas burner 31 having a gas igniter 30, a fuel supply pipe 32 that supplies fuel gas to the gas burner 31, and a fuel gas supply and stop provided in the fuel supply pipe 32. An electromagnetic valve 33, which is an example of an on-off valve, and an electromagnetic proportional valve 34, which is an example of a gas flow rate adjustment mechanism that adjusts the flow rate of fuel gas supplied from the electromagnetic valve 33, are provided.
With such a configuration, the bath water 13 stored in the bathtub 12 is sucked from the suction port 18 by operating the circulation pump 23, introduced into the heat exchanger 21 through the bath return path 22, and the bath Heating can be performed based on the measurement result of the return thermistor 24. Further, the heated bath water 13 can be allowed to flow through the flow path 26, the temperature is measured by the flow thermistor 27, and then discharged from the discharge port 19 into the bathtub 12.
[0010]
The bath operation unit 14 is caused to input a set temperature when the bath water 13 is heated, or a new set temperature is input to change the set temperature during the operation of the forced circulation heating means 16, and the result Are provided to the control means 17 and a communication mechanism 36 for exchanging communication signals for performing a cooperative operation with the control means 17 is provided. The bathroom operation unit 14 having such a function can be configured using, for example, a microcomputer.
The control means 17 sends a communication signal to the communication mechanism 36, accepts a response signal from the communication mechanism 36, and diagnoses a failure of the bathroom operation unit 14 from the response signal. A normal operation control unit 38 is provided which is operable when the unit 14 is diagnosed as being normal and accepts an operation command signal from the input / output mechanism 35. The operation command signal from the input / output mechanism 35 is input to the normal operation control unit 38 and also input to the operation command storage unit 39 and stored. In addition, when the failure diagnosis unit 37 determines that the bathroom operation unit 14 is a failure, the display provided in the failure diagnosis unit 37 indicates that there is a failure. Further, an abnormality signal is output from the failure diagnosis unit 37, and the communication mechanism 36 receives the abnormality signal and displays that the bathroom operation unit 14 is in failure on a display provided in the bathroom operation unit 14.
Here, the normal operation control part 38 is comprised, for example from a microcomputer, and each detection signal of the thermistors 24 and 27 and the water flow switch 25 is input. A program for controlling the operation and operation of the circulation pump 23, the gas ignition unit 30, the electromagnetic valve 33, and the electromagnetic proportional valve 34 is stored in the normal operation control unit 38 in accordance with various operation contents set in advance. For this reason, when the operation command signal related to the set temperature is input from the input / output mechanism 35 to the normal operation control unit 38, the circulation pump 23, gas, and the like are detected based on the operation command signal and the detection signals of the thermistors 24 and 27 and the water flow switch 25. The ignition unit 30, the electromagnetic valve 33, and the electromagnetic proportional valve 34 are operated and operated.
[0011]
The control unit 17 includes a connection determination unit 40 that confirms the connection between the bathroom operation unit 14 and the control unit 17, and an emergency operation control unit that is operable when the bathroom operation unit 14 and the control unit 17 are not connected. 41 and an emergency operation switch 42 for giving an instruction to start operation of the emergency operation control unit 41 is provided. In addition, the control unit 17 is provided with a communication blocking unit (switch) 43 that blocks communication between the bathroom operation unit 14 and the control unit 17.
The connection determination unit 40 is provided with a function for confirming that the communication blocking unit 43 is in the on state. Since the communication blocking unit 43 is turned on, the control unit 17 and the bathroom operation unit 14 are connected. And are not connected. When the connection determination unit 40 determines that the control means 17 and the bathroom operation unit 14 are not connected, a signal is output from the connection determination unit 40 to the emergency operation control unit 41, and the emergency operation control unit 41 is output by this output signal. In addition to being in an operable state, it is possible to respond to an instruction signal from the emergency operation switch 42 instructing the start of operation. Here, the failure diagnosis unit 37, the operation command storage unit 39, and the connection determination unit 40 can be configured using, for example, a microcomputer, and the emergency operation switch 42 and the communication cutoff unit 43 include, for example, a push button type. An on-off switch can be used.
[0012]
Further, the emergency operation control unit 41 is provided with a temperature management function for determining the temperature at which the bath water 13 is heated from the history of the set temperature stored in the operation command storage unit 39. The temperature management function is, for example, set to a preset temperature when heating the bath water 13 by calling the preset temperature stored immediately before the bathroom operation unit 14 fails, or stored immediately before the bathroom operation unit 14 fails. A preset temperature for a predetermined period (for example, one week) is called to obtain an average value, and this average value is set to a preset temperature for heating the bath water 13. Further, the emergency operation control unit 41 has an interval shorter than a detection operation interval (for example, 20 minutes) for determining whether or not to perform reheating for keeping the bath water 13 when the bathroom operation unit 14 is normal. A thermal insulation management function is provided that repeats the detection operation for determining whether or not to chase in (for example, 10 minutes).
Here, the emergency operation control part 41 is comprised, for example from a microcomputer, and each detection signal of the thermistors 24 and 27 and the water flow switch 25 is input. The emergency operation control unit 41 stores a program for controlling the operation and operation of the circulation pump 23, the gas ignition unit 30, the electromagnetic valve 33, and the electromagnetic proportional valve 34 in accordance with a preset temperature management function and heat insulation management function. Has been. For this reason, when the operation start instruction signal from the emergency operation switch 42 is input to the emergency operation control unit 41, the circulation pump 23, the gas, and the gas are detected based on the operation start signal and the detection signals of the thermistors 24 and 27 and the water flow switch 25. The ignition unit 30, the electromagnetic valve 33, and the electromagnetic proportional valve 34 are operated and operated.
[0013]
Next, the usage method of the bath 11 provided with the forced circulation bath pot device 10 according to the embodiment of the present invention will be described in detail with reference to FIGS.
In order to boil the bath 11, the bath water 13 is stored in the bathtub 12, and the forced circulation bath device 10 is switched on (S1). When the forced circulation bath apparatus 10 is switched on, the failure diagnosis section 37 of the control means 17 of the forced circulation bathroom apparatus 10 transmits a communication signal to the communication mechanism 36 of the bathroom operation section 14, and from the communication mechanism 36. It is confirmed from the response signal whether the bathroom operation unit 14 is out of order (S2).
When the bathroom operation part 14 is not out of order, the bathroom operation part 14 allows the user to input a set temperature for heating the bath water 13 (S3). The bathroom operation unit 14 determines whether the operation switch provided in the bathroom operation unit 14 has been turned on (S4), and further confirms that the operation switch has been turned on and has not been turned off (S5). Next, the bathroom operation unit 14 transfers the input set temperature to the normal operation control unit 38, and the normal operation control unit 38 starts operation of the forced circulation heating means 16 based on the transferred set temperature (S6). .
[0014]
When the operation of the forced circulation heating means 16 is started, the bath water 13 circulates in the circulation path 20 by driving the circulation pump 23, so that the temperature of the bath water 13 is detected by the return thermistor 24, and the bath water 13 The heating is continued until the temperature reaches the set temperature set by the bathroom operation unit 14 (S7). When the temperature of the bath water 13 reaches the set temperature, the operation of the forced circulation heating means 16 has passed the heat retention management time (for example, 20 minutes) unless the operation switch of the bathroom operation unit 14 is turned off (S8). It stops until it does (S9). When insulation administration time, verify that it is not yet cut is found placed the operation switch of the bathroom operation unit 14 (S5), and starts the operation of the forced circulation heating means 16 (S6), bath water The temperature 13 is heated again to the set temperature (S7), and the operation of the forced circulation heating means 16 is stopped until the heat management time elapses (S8, S9). In addition, when the operation switch of the bathroom operation part 14 is turned off on the way (S5, S8), the driving | operation of the forced circulation heating means 16 is complete | finished immediately (S10). In addition, the heat retention operation is set in advance to end in a predetermined heat retention time (for example, 4 hours) (S20).
[0015]
When a failure of the bathroom operation unit 14 is confirmed by the failure diagnosis unit 37 (S2), the display provided in the failure diagnosis unit 37 and the bathroom operation unit 14 indicates that the bathroom operation unit 14 is broken. Therefore, the user turns off the communication blocking means 43 and disconnects the bathroom operation unit 14 from the control means 17. The connection determination unit 40 confirms that the connection between the bathroom operation unit 14 and the control means 17 has been disconnected (S11). When disconnection of the connection between the bathroom operation unit 14 and the control means 17 is confirmed by the connection determination unit 40, an activation signal that enables the operation of the emergency operation control unit 41 is output from the connection determination unit 40, and the emergency operation control unit 41 becomes a driving | operation possible state (S12). Next, when it is confirmed that the emergency operation switch 42 provided in the main body 15 is turned on (S13), the emergency operation control unit 41 starts operation. First, in the emergency operation control unit 41, the set temperature stored immediately before the bathroom operation unit 14 breaks out of the past set temperatures stored in the operation command storage unit 39 when the temperature management function is activated. Reading is performed (S14). As a result, the set temperature when the bath water 13 is heated under the control of the emergency operation control unit 41 is input. When the reading of the data in the operation command storage unit 39 is completed, it is confirmed that the emergency operation switch 42 is not turned off (S15), and the operation of the forced circulation heating means 16 is started (S16).
[0016]
When the operation of the forced circulation heating means 16 is started, the bath water 13 circulates in the circulation path 20 by driving the circulation pump 23, so that the temperature of the bath water 13 is detected by the return thermistor 24, and the bath water 13 The heating is continued until the temperature reaches the set temperature set by the emergency operation control unit 41 (S17). When the temperature of the bath water 13 reaches the set temperature, the operation of the forced circulation heating means 16 is stopped until the thermal insulation management time (for example, 10 minutes) elapses unless the emergency operation switch 42 is turned off (S18). (S19). When the thermal insulation management time has elapsed, it is confirmed that the emergency operation switch 42 has not been turned off (S15), the operation of the forced circulation heating means 16 is started (S16), and the temperature of the bath water 13 is set again to the set temperature. (S17), and the operation of the forced circulation heating means 16 is stopped until the heat insulation management time elapses (S18, S19). If the emergency operation switch 42 is turned off halfway (S15, S18), the operation of the forced circulation heating means 16 is immediately terminated (S10). In addition, the heat retention operation is set in advance to end in a predetermined heat retention time (for example, 4 hours) (S21).
[0017]
Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment. For example, the normal operation control unit 38, the failure diagnosis unit 37, the connection determination unit 40, and the operation command storage Although the unit 39 and the emergency operation control unit 41 are configured using individual microcomputers, the normal operation control unit 38, the failure diagnosis unit 37, the connection determination unit 40, the operation command storage unit 39, and the emergency operation control unit 41 may be composed of one microcomputer.
Further, the circulation pump 23 and the water flow switch 25 are provided in the bath return path 22, but may be provided in the bath return path 26, or one may be provided in the bath return path 22 and the other in the bath return path 26. Although the suction port 18 and the discharge port 19 are provided side by side on the same side wall of the bathtub 12, it is possible to provide either one on the side wall and the other on the bottom side. A single-mouth circulation port with a return side and a forward side in the mouth can also be used.
[0018]
【The invention's effect】
In the forced circulation bath apparatus according to claims 1 and 2 , the control means detects a failure of the bathroom operation unit and outputs an abnormal signal at the time of the failure, and an abnormal signal from the failure diagnostic unit. A connection determination unit that detects and confirms the connection between the bathroom operation unit and the control means, and a forced circulation heating system that is operable when the connection determination unit determines that the bathroom operation unit is not connected to the control means. The emergency operation control unit that controls the means and the emergency operation switch that instructs the operation start of the emergency operation control unit are provided, so even if the bathroom operation unit is out of order, the main body side of the forced circulation type bath can be operated By doing so, it is possible to perform an emergency operation of the forced circulation bath pot device, and there is no significant inconvenience that the user has to endure bathing until a new bathroom operation unit is obtained.
[0019]
Further, in this forced circulation type bath pot device, the emergency operation control unit is provided with a temperature management function for determining the temperature at which the bath water is heated from the history of the set temperature stored in the control means. Even if the bathroom operation unit fails, it is possible to set the heating temperature of the bath water, which is likely to be set even when the command to change the set temperature is not possible, from the history of the past set temperature. It is possible to reduce discomfort associated with significantly different temperatures.
[0020]
In particular, in the forced circulation bath apparatus according to claim 2 , the emergency operation control unit is configured to detect whether or not the repetitive reheating is performed for keeping the bath water when the bathroom operation unit is normal. A thermal insulation management function that repeats the detection operation of whether or not to chase at intervals shorter than the interval is provided, so even if the bathroom operation unit fails and the bath water temperature cannot be maintained, the bath water temperature can be adjusted. By frequently monitoring, the temperature of the bath water can be reliably maintained, and the discomfort associated with the decrease in bath water temperature during bathing can be reduced.
[Brief description of the drawings]
FIG. 1 is a block diagram showing the overall configuration of a bath provided with a forced circulation bath pot device according to an embodiment of the present invention.
FIG. 2 is a flowchart for explaining an operation method of the forced circulation type tumbler apparatus.
[Explanation of symbols]
10: forced circulation bath apparatus, 11: bath, 12: bathtub, 13: bath water, 14: bathroom operation unit, 15: bath apparatus body, 16: forced circulation heating means, 17: control means, 18: Suction port, 19: Discharge port, 20: Circulation route, 21: Heat exchanger, 22: Full return route, 23: Circulation pump, 24: Full return thermistor, 25: Water flow switch, 26: Full return route, 27: Bath thermistor, 28: gas combustion mechanism, 29: heat exchange section, 30: gas ignition section, 31: gas burner, 32: fuel supply pipe, 33: solenoid valve, 34: solenoid proportional valve, 35: input / output mechanism, 36 : Communication mechanism, 37: failure diagnosis unit, 38: normal operation control unit, 39: operation command storage unit, 40: connection determination unit, 41: emergency operation control unit, 42: emergency operation switch, 43: communication cutoff means (switch )

Claims (2)

Forced circulation heating means for heating the bath water of the bathtub, a set temperature command when heating the set bath water, a bathroom operation section for changing the set temperature, and each of the bath operation sections In a forced circulation puffer device comprising a control means for storing instructions and controlling the operation of the forced circulation heating means,
In the control means, a failure diagnosis unit that detects a failure of the bathroom operation unit and outputs an abnormal signal at the time of failure, and
A connection determination unit for detecting an abnormal signal from the failure diagnosis unit and confirming a connection between the bathroom operation unit and the control unit;
An emergency operation control unit that is operable when the connection determination unit determines that the bathroom operation unit is not connected to the control unit, and controls the forced circulation heating unit,
An emergency operation switch for instructing operation start of the emergency operation control unit is provided ,
In addition, the emergency operation control unit is provided with a temperature management function for determining a temperature at which the bath water is heated from the history of the set temperature stored in the control means. Type bath pot device. 2. The forced circulation bath apparatus according to claim 1 , wherein the emergency operation control unit is configured to detect whether or not the reheating operation is repeated to keep the bath water warm when the bathroom operation unit is normal. A forced circulation bath apparatus, which is provided with a heat insulation management function that repeats a detection operation as to whether or not to chase at an interval shorter than the interval.

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