JP3832425B2 - Hot water system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hot water supply system in which hot water generated by a hot water heater is discharged from a shower, a currant, or the like, or hot water is filled by pouring into a bathtub.
[0002]
[Prior art]
An example of this type of hot water supply system is shown in FIG. As shown in the figure, the hot water supply system 50 has a hot water supply function for automatically discharging hot water at a hot water supply set temperature from a currant 54 or the like through a hot water supply pipe 53, and an automatic hot water filling function for automatically filling the bathtub B (automatic heating A hot water heater with bath remedy function 51 having both a hot water pouring function and a remedy function), and when the hot water heater with bath remedy function 51 is set to the automatic hot water filling mode, 51 heats the tap water supplied through the water supply pipe 52 to generate hot water having a bath set temperature, and pours the hot water having the bath set temperature into the bathtub B through the forward pipe 55. The hot water stored in the tub B is set as a bath by appropriately reheating while circulating the hot water stored in the tub B through the forward piping 55 and the return piping 56 It is adapted to hold every time.
[0003]
The water heater 51 with a bath remedy function includes a hot water filling reservation function that automatically starts an automatic hot water filling operation so that the hot water filling to the bathtub B is completed at the reservation time. If you make a hot water reservation in accordance with the scheduled return time of the day, when you come home after the scheduled return time, the hot water filling in bathtub B has already been completed and you can take a bath immediately. Is very convenient.
[0004]
[Patent Document 1]
JP-A-7-208796 [Patent Document 2]
Japanese Patent Laid-Open No. 2000-240998
[Problems to be solved by the invention]
However, a resident who has gone out is not necessarily able to return home at the scheduled return time when the hot water filling reservation is made. As described above, the filling of the hot water to the bathtub B has already been completed at the scheduled return time, and the hot water heater 51 with a bath remedy function appropriately replenishes from the scheduled return time to the actual return time. By performing, the hot water stored in the bathtub B is held at the bath set temperature.
[0006]
In this way, when the home cannot be returned by the scheduled return time, the hot water heater 51 with a bath remedy function performs a retreat even though the bath cannot actually be taken. Since the hot water in the bathtub B where hot water filling is completed is kept at the bath set temperature, there is a problem that energy is wasted.
[0007]
In addition, when the water heater 51 with the bath chasing function is operating in the automatic hot water filling mode, the resident has gone out without turning off the operation switch of the water heater 51 with the bath chasing function. In the same manner, the hot water heater 51 with a bath remedy function continues to hold the hot water stored in the bathtub B at the bath set temperature, even though the bath cannot be taken. There is a problem that it is wasted.
[0008]
Furthermore, if a resident does hot water supply without noticing this in a state where a gas leak has occurred, there is a risk of igniting the leaked gas due to the ignition operation of the hot water heater 51 with a bath chasing function.
[0009]
Then, the subject of this invention is providing the hot-water supply system which can perform the hot-water supply operation according to the surrounding condition in view of the problem mentioned above.
[0010]
[Means for solving the problems and effects thereof]
In order to solve the above-mentioned problems, the invention according to claim 1 includes an automatic hot water filling function for automatically filling the bathtub with hot water, and an automatic hot water filling operation so that the hot water filling for the bathtub is completed at the reserved time. A hot water supply controller having a hot water filling reservation function for automatically starting a hot water supply is connected to a home security system in a communicable manner, and the control part of the water heater is based on monitoring information acquired from the home security system. If the resident is absent at the hot water filling start time set by making a hot water filling reservation, go to the bath tub until it becomes home. no automatic water-covered, when it becomes home state, also provides a hot water supply system, characterized in that is adapted to initiate the automatic hot water Upholstery for bathtub It is.
[0012]
As described above, the hot water supply system, when the resident is absent on the set hot water clad start time by doing your hot water filling reservation, without the automatic hot water tension to the bathtub until the home state, home When it reaches the state, automatic hot water filling to the bathtub is started, so if the resident cannot return home by the hot water start time, There is no hot water filling, so energy is not wasted as in conventional hot water supply systems, and when the resident returns home, hot water filling in the bathtub starts immediately, so hot water filling is complete The time is not significantly delayed from the resident's return time, and after the resident's return home, it becomes possible to take a bath in a short time.
[0013]
Also, as in the hot-water supply system of the invention according to claim 2, after the hot water tension in a bath tank automatically, if necessary, by performing the reheating, bath set the hot water temperature in the bathtub an automatic hot water Upholstery function to perform an automatic hot water Upholstery operation of holding the temperature, so that hot water clad to the bathtub at the scheduled time is complete, the hot water which have a and hot water tension reservation function to start the automatic hot water Upholstery operation automatically The controller of the water heater is communicably connected to the home security system, and the controller of the water heater grasps whether the resident is at home or absent based on the monitoring information acquired from the home security system. If there is no resident at the reservation time with the hot water filling reservation made, the automatic hot water filling operation will be stopped at that time In that case, even if the resident is absent at the start time of hot water filling, if the resident comes home before the reservation time, the hot water filling to the bathtub will be completed at the reservation time, If you can take a bath as scheduled and the resident has not returned home after the scheduled time, the hot water heater will perform a memorial operation to keep the hot water stored in the bathtub at the set temperature after the scheduled time. Thus, energy is not wasted as in the conventional hot water supply system.
[0014]
Further, as a light emitting according to claim 3, the hot water system of the invention according to claim 2, wherein the water heater, after water tension to the bathtub automatically, if necessary, the reheating by running, has an automatic water tension mode for holding the hot water in the bathtub in the bathroom set temperature, when the operation mode before Symbol water heater is set to automatic water-clad mode, the home state If the automatic hot water filling mode is forcibly canceled when the absence state is reached when the absence state is entered, the hot water stored in the bathtub is used as the bath setting temperature when there is no resident. Therefore, the hot water heater does not perform the chasing operation, so that energy is not wasted unlike the conventional hot water system.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments will be described with reference to the drawings. As shown in FIG. 1, the hot water supply system 1 has a hot water supply function for discharging hot water at a hot water supply set temperature from a currant 33 or the like through a hot water supply pipe 32 and an automatic hot water filling function for automatically filling the bathtub B with hot water. A hot water heater with a bath remedy function (hereinafter referred to as a hot water heater) 10 and a hot water heater operation remote controller 20 installed in a bathroom or kitchen as an operating means for operating the hot water heater 10. When the water heater 10 is set to the automatic hot water filling mode by the water heater operation remote controller 20, the water heater 10 generates hot water having a bath set temperature by heating the tap water supplied through the water supply pipe 31, The hot water at the bath set temperature is poured into the bathtub B through the outgoing pipe 34 to fill the bathtub B, and then the hot water stored in the bathtub B is supplied to the outgoing pipe 34 and the return pipe. By performing the appropriate reheating while circulating through 5, so as to retain the hot water stored in the tub B a bath set temperature.
[0016]
In addition, the water heater 10 has a hot water filling reservation function that automatically starts an automatic hot water filling operation slightly before the reservation time (about 20 minutes before) so that the hot water filling to the bathtub B is completed at the reservation time. The hot water filling reservation can be set by the water heater operation remote controller 20.
[0017]
The water heater 10 and the water heater operation remote controller 20 are equipped with controllers 11 and 21 that can communicate with each other via a serial interface as a communication means, and these controllers 11 and 21 cooperate with each other. The operation of the water heater 10 is controlled.
[0018]
Moreover, in the house where the hot water supply system 1 is installed, monitoring information such as an intruder detected by various sensors or the like, a fire occurrence, or a gas leak occurrence is received from the communication terminal operation device 41 installed in the house. A home security system 40 that is transmitted to the control center 43 of the security company via the public telephone line 42 is constructed. In this home security system 40, when all the residents go out, an outing button or the like of the communication terminal operation device 41 is provided. Is switched to the resident absent mode, and monitoring information (resident absentee information) is automatically transmitted to the control center 43.
[0019]
Further, the controller 11 of the water heater 10 is communicably connected to a communication terminal operation device 41 that constitutes the home security system 40, and the controller 11 transmits gas leak occurrence information and resident absence information from the communication terminal operation device 41. The specific monitoring information is acquired, and the operation of the water heater 10 is controlled based on the monitoring information.
[0020]
First of all, if you have made a hot water reservation before going out so that you can take a bath when you go home, that is, the hot water filling in bathtub B is completed at the time you plan to go home If the monitoring information (resident absence information) acquired from the home security system 40 at the hot water filling start time set by making a hot water filling reservation shows that the resident has not returned home, the resident will return home. Until this time, the automatic hot water filling operation to the bathtub B is not performed, and when the resident returns home and is determined to be home from the monitoring information, the automatic hot water filling operation to the bathtub B is started. If the resident comes home before the start of hot water filling, the automatic hot water filling operation to bathtub B is started at the hot water filling start time, and the hot water filling to bathtub B is started at the reservation time (scheduled time to go home). It will be completed.
[0021]
Further, when the operation mode of the water heater 10 is set to the automatic hot water filling mode, that is, when the water heater 10 performs reheating as necessary, the hot water stored in the bathtub B is maintained at the bath set temperature. In the state where all residents have gone out without turning off the operation switch of the water heater 10 provided in the water heater operation remote controller 20, the monitoring information acquired from the home security system 40 When it becomes clear from the (resident absentee information) that all the residents are absent, the automatic hot water filling mode of the water heater 10 is forcibly released. Note that this automatic hot water filling mode forcible release operation is not limited to the case where the hot water heater 10 is set to the automatic hot water filling mode by the hot water filling reservation, and the resident automatically performs the “floor automatic” operation of the water heater operation remote controller 20. The same operation is performed when the automatic hot water filling mode is set by pressing a button.
[0022]
In addition, when a resident opens the currant 33 or the like with the operation switch of the water heater 10 turned on, the water flow switch of the water heater 10 is turned on, and the burner that heats the heat exchanger starts combustion. When the monitoring information (gas leak occurrence information) acquired from the home security system 40 reveals that a gas leak has occurred, the operation of the water heater 10 is restricted so that the burner does not burn, The fact is notified by the hot water heater operation remote controller 20, thereby making it possible to prevent the leaked gas from being ignited.
[0023]
As described above, in this hot water supply system 1, if the resident cannot return home by the hot water filling start time set by making the hot water filling reservation, Since hot water filling is not performed, the energy required for the reheating operation performed by the water heater 10 to keep the hot water stored in the bathtub B at the bath set temperature as in the conventional hot water supply system is wasted. In addition, as soon as the resident returns home, the hot water filling to the bathtub B is started, so the completion time of the hot water filling is not significantly delayed from the resident's return time, and within a short time after the resident's return home It becomes ready to take a bath.
[0024]
Further, in this hot water supply system 1, as described above, in a state where the operation mode of the water heater 10 is set to the automatic hot water filling mode, all the residents go out without turning off the operation switch of the water heater 10. In such a case, the automatic hot water filling mode of the water heater 10 is forcibly canceled, so that the water heater 10 does not perform a memorial operation after the resident has gone out. Unlike the system, energy is not wasted.
[0025]
In the embodiment described above, when a hot water filling reservation is made, if the resident has not come home at the hot water filling start time, the hot water filling to the bathtub B is not performed until the resident comes home. However, it is not limited to this, for example, even if the resident has not come home at the hot water start time, the automatic hot water filling operation to the bathtub B is started and the scheduled return time is If the resident is not at home, the automatic hot water filling mode can be forcibly canceled at that time, so that even if the resident is absent at the hot water filling start time, If the resident comes home in the meantime, the hot water filling in the bathtub will be completed at the reservation time, and the resident who has returned can take a bath as scheduled, and the resident has not returned home after the reservation time If the Since the hot water heater does not perform a memorial operation to keep the hot water stored in the bathtub at the bath set temperature after the time, energy is not wasted as in the conventional hot water system. .
[0026]
Furthermore, when the resident returns home after the reservation time and is determined to be home based on the monitoring information, the operation mode of the water heater is switched to the automatic hot water filling mode again. Since it starts automatically, it becomes possible to take a bath in a short time after the resident returns home.
[0027]
In the above-described embodiment, when all the residents have gone out without turning off the operation switch of the water heater 10 while the operation mode of the water heater 10 is set to the automatic hot water filling mode. However, the automatic hot water filling mode of the water heater 10 is forcibly canceled. However, the present invention is not limited to this, and when it becomes clear that all residents have gone out, the operation switch of the water heater 10 is turned on. It may be forcibly turned off.
[0028]
Moreover, in embodiment mentioned above, out of the monitoring information acquired from the home security system 40, gas leak occurrence information and a resident absence information are used for control of the water heater 10, However, It is not limited to this. It is also possible to use other monitoring information in order to perform a hot water supply operation according to the surrounding situation.
[0029]
Moreover, although the hot water supply system 1 which produces | generates warm water with the hot water heater 10 was demonstrated in embodiment mentioned above, it is not limited to this, For example, the solar water utilization water heater as an auxiliary heat source, and the hot water supply as a main heat source Needless to say, the present invention can be applied to a hot water supply system combined with a water heater.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing an embodiment of a hot water supply system according to the present invention.
FIG. 2 is a schematic configuration diagram showing a conventional hot water supply system.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hot-water supply system 10 Hot-water supply device 11 with bath chasing function Controller 20 Hot-water supply operation remote control 21 Controller 31 Water supply piping 32 Hot-water supply piping 33 Karan 34 Outward piping 35 Return piping 40 Home security system 41 Communication terminal operation device 42 Public telephone line 43 Control center B Bathtub

Claims (3)

An automatic hot water filling function that automatically fills the bathtub with hot water, and a hot water filling function that automatically starts the hot water filling operation so that the hot water filling to the bathtub is completed at the reservation time . The control unit is communicably connected to the home security system,
The control unit of the water heater is configured to grasp whether a resident is at home or absent based on monitoring information acquired from the home security system.
When the resident is absent at the hot water start time set by making a hot water filling reservation, automatic hot water filling to the bathtub is not performed until the home state is reached. A hot water supply system characterized by starting hot water filling . With automatic hot water filling function that automatically performs hot water filling operation to keep the hot water temperature in the bathtub at the bath set temperature by performing reheating as necessary after automatically filling the hot water to the bathtub , So that the hot water filling to the bathtub is completed at the reservation time, the control unit of the water heater having a hot water filling reservation function for automatically starting the hot water filling operation is connected to the home security system,
The control unit of the water heater is configured to grasp whether a resident is at home or absent based on monitoring information acquired from the home security system.
When a hot water filling reservation is made and a resident is absent at the reservation time, the hot water filling operation is stopped at that time. The water heater has an automatic hot water filling mode in which the hot water in the bathtub is kept at the set temperature of the bath by automatically refilling the hot water in the bathtub and then performing reheating as necessary. And
In the case where the operation mode of the water heater is set to the automatic hot water filling mode, the automatic hot water filling mode is forcibly released when the absence state is reached when the home state is shifted to the absence state. The hot water supply system according to claim 2.

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