JP3770190B2 - Water heater - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a built-in type hot water supply apparatus that is used by being incorporated into a kitchen system in a general household.
[0002]
[Prior art]
When a conventional water heater such as a jar pot is used for rinsing in a heating container, the user decides the timing, and the user pours water into the heating container to rinse, and then discards the liquid in the container. I was doing the work.
[0003]
[Problems to be solved by the invention]
However, the conventional method relies on the user's memory and judgment as to whether or not the liquid in the heating container becomes old and should be rinsed, and the rinsing operation itself causes water to flow into the heating container. Pouring and rinsing and repeating the act of draining are time consuming and hygienic and burden the user.
[0004]
The present invention solves the above-mentioned conventional problems, and automates the rinsing process, and if a power failure occurs during the rinsing process, the rinsing is automatically performed after the power failure is restored even if the rinsing is interrupted. An object of the present invention is to provide a hygienic and easy-to-use built-in hot water supply apparatus that resumes from the continuation of the cleaning process and completes the rinse cleaning process.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned conventional problems, the hot water supply apparatus of the present invention is controlled by a control means for controlling a load such as a water supply valve and a pump, a rinsing washing means for automatically performing from water injection to drainage, and a control means at the time of power failure. Storage means for storing the process, and when the control means is stored in the storage means in the middle of the rinse cleaning process, the operation is returned from the stored rinse cleaning process. Rinsing cleaning return means is provided.
[0006]
Thereby, even if the rinsing process is interrupted by a power failure, the rinsing process is automatically restored and completed when the power is restored, so that the user can use a simple and sanitary hot water supply apparatus.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 is a heating container for heating a liquid, a water supply valve for controlling water supply provided in a water supply path from a water pipe to the heating container, and a pump for discharging the liquid in the heating container. , A control means for controlling the water supply valve and the pump, and the control means has a rinsing washing means for automatically performing a rinsing washing process from pouring into the heating container to draining, and stopping the operation of the control means A storage means for storing the operation process of the control means at times, and a rinse cleaning process stored in the storage means when the storage means is in the middle of the rinse cleaning process at the start of the operation of the control means Since the hot water supply device has a rinse cleaning return means that returns the operation from the middle of the operation, even if the rinse cleaning process is interrupted by a power failure, the rinse cleaning process is opened from the point of interruption after the power failure is recovered. Because automatically completed, and it is possible to provide a sanitary water heater to prevent the unexpected power failure, that the rinse will end in an unsatisfactory state.
[0008]
According to a second aspect of the present invention, when the storage means is stored in the middle of the rinsing cleaning process at the start of the operation of the control means, the operation is started from the beginning of the rinsing cleaning process instead of the cleaning return means. By having the rinsing cleaning resetting means, if the rinsing cleaning process is interrupted due to a power failure, the rinsing cleaning is started again, so that a safe and sanitary hot water supply apparatus can be provided even for a long power failure.
[0009]
According to a third aspect of the present invention, there is provided a cleaning power outage display means for displaying that a power failure occurred during the rinsing cleaning when the storage means stored in the storage means at the start of the operation of the control means is in the middle of the rinsing cleaning. By having a hot water supply that does not give anxiety to the user at a glance, even if the user is away from the site during rinse cleaning, a power failure occurs and the time of the rinse cleaning process is extended. An apparatus can be provided.
[0010]
According to a fourth aspect of the present invention, when the operation of the control means starts, the storage means stores the abnormal-time rinsing means for operating the rinsing cleaning means in an abnormal mode such as equipment failure or user's erroneous operation. Since it has become an abnormal mode, the power supply is turned off, and after repairing and repairing abnormalities and failures, etc., when the power is turned on again, the heating container automatically starts rinsing. Even if the inside of the heating container becomes unsanitary at the time of repair, a hot water supply device that can be used with confidence can be provided.
[0011]
The invention according to claim 5 has erroneous information rinsing means for operating the rinsing cleaning means when there is no data on the operation process at the time of the previous power failure stored in the storage means at the start of the operation of the control means. Therefore, if the storage unit fails or the stored information is garbled due to noise, etc., and the correct operation process cannot be determined before the power failure, the heating container is automatically rinsed, so even if it is stored It is possible to provide a hot water supply device that can be used in a sanitary and safe manner even if the content becomes strange.
[0012]
According to the sixth aspect of the present invention, when the hot water heater is used for the first time, the heating container is automatically rinsed by having the first time rinsing means for operating the rinsing cleaning means when no information is stored in the storage means. Since washing is performed, a hot water supply apparatus that can be used in a sanitary and safe state can be provided.
[0013]
The invention according to claim 7 includes an erasing unit for erasing the operation process stored in the storage unit after determining the operation process stored in the storage unit at the start of the operation of the control unit. Even if the control means stops without storing the operation process performed by the control means in the storage means due to malfunction or the like, the contents of the storage means stored at the time of the previous power failure are cleared. Since the operation starts and does not start according to the operation process memorized at the time of the previous power failure by mistake, it is possible to provide a hot water supply device that is easy to use without giving anxiety to the user.
[0014]
【Example】
Embodiments of the present invention will be described below with reference to FIGS.
[0015]
Example 1
FIG. 1 shows a hot water supply apparatus according to a first embodiment of the present invention. In FIG. 1, 1 shows the kitchen unit installed in the home, and the purified water heating unit 2 is installed in the interior space. Reference numeral 3 denotes a water pipe, which is connected to a water outlet 4 facing the kitchen sink 12 of the kitchen unit 1 and a water purifying means 5 made of a hollow membrane or activated carbon for removing impurities in tap water. A water supply valve 6 that controls water supply to the water purification means 5 is provided in the water supply path between the water pipe 3 and the water purification means 5. The tap water that has passed through the water purifying means 5 is poured into a heating container 8 having a heater 7 for heating water via a water supply path 9. Further, the heating container 8 includes a thermistor 10 which is a temperature detection means for detecting the water temperature in the heating container, and a water level detection means 11 for detecting the water level in the heating container 8 because the potential between the electrodes changes depending on the presence or absence of water. Provided.
[0016]
On the water supply path 9, there is provided a switching valve 14 that guides the water that has passed through the water purification means 5 to either the water purification pipe 13 that discharges the water to the kitchen sink 12 or the water supply path 9. Reference numeral 15 denotes a steam pipe for releasing the steam generated from the heating container 8, and 16 denotes a pump for discharging the hot water in the heating container 8 to the outlet pipe 17. The purified water pipe 13, the steam pipe 15, and the hot water pipe 17 described above are arranged facing the kitchen sink 12, like the water tap 4. Reference numeral 18 denotes an operation display unit that informs discharge of hot water and purified water and various states, and is provided in the operation unit 1 a at the top of the kitchen unit 1. Reference numeral 19 denotes a commercial power source that supplies power to the hot water supply apparatus in the embodiment of the present invention, and 20 denotes a microcomputer that is a control means of the hot water supply apparatus in the embodiment of the present invention. The microcomputer 20 includes a water supply valve 6 and a heater. 7, the thermistor 10, the water level detection means 11, the switching valve 14, the pump 16, the operation display unit 18 and the commercial power supply 19 are connected, and the thermistor 10, the water level detection means 11, the operation display unit 18 and the commercial power supply 19 are input. Thus, the output control of the water supply valve 6, the heater 7, the switching valve 14, and the pump 16 is performed.
[0017]
In the microcomputer 20, the water supply valve 6, the switching valve 14, and the pump 16 are controlled in accordance with the signal of the water level from the water level detection means 11 to rinse the water from the water injection to the waste water into the heating container 8. Rinsing and cleaning means 20a that automatically performs the process, and storage means 20b that includes an operation that is controlled by the microcomputer 20 when the commercial power supply 19 fails, and that does not require a memory holding power supply; When power is started to be supplied from the commercial power supply 19 to the microcomputer 20, if the content stored in the storage means 20b is in the middle of the rinse cleaning process, the rinse cleaning return means 20c for starting the rinse cleaning means 20a from the continuation. have.
[0018]
FIG. 2 shows the details of the operation display unit 18, and when 18a is turned ON, the connected microcomputer 20 switches the switching valve 14 to the purified water pipe 13 side and opens the water supply valve 6 to discharge the purified water. Clean water SW to do. 18b is a purified water LED that lights up to indicate that purified water is being discharged. 18c is a tapping hot water switch SW that the connected microcomputer 20 switches the switching valve 14 to the heating container 8 and the tapping pipe 17 side and drives the pump 16 to pour out the hot water in the heating container 8 when turned ON. 18d is a lock release SW that enables operation of the hot water SW 18c when turned ON. A lock release LED 18e lights up when the lock release SW 18d is turned on and indicates the state of the lock release SW 18d. Rinse washing SW 18f activates the rinse washing means 20a when turned ON. Reference numeral 18g denotes a rinse cleaning LED which lights and displays that the rinse cleaning is in progress.
[0019]
The operation of the hot water supply apparatus configured as described above will be described. The water temperature in the heating container 8 of the water heater is detected by the thermistor 10 and sent to the microcomputer 20. When the water temperature detected by the thermistor 10 is less than 85 ° C., the microcomputer 20 turns on the heater 7, and when the water temperature is 85 ° C. or more, the microcomputer 7 turns off the heater 7 and maintains the heat insulation state.
[0020]
When the hot water SW 18c is turned on to discharge hot water in the heating container 8 and the water level drops from full, the water level detecting means 11 detects that the water level has dropped and sends it to the microcomputer 20. The microcomputer 20 When the signal is lowered, the switching valve 14 is switched to the heating container 8 side and the water supply valve 6 is opened to supply water into the heating container 8. When the water level detection means 11 detects the full water level and sends it to the microcomputer 20, the microcomputer 20 closes the water supply valve 6 to stop water supply, and controls the heater 7 to keep the hot water hot. . In this way, the hot water 8 is always kept in a state where hot water can be discharged in a full state.
[0021]
Next, the movement of the rinse cleaning means 20a will be described with reference to FIG. When receiving the ON signal from the rinse cleaning SW 18f, the rinse cleaning means 20a starts the rinse cleaning process and waits until the hot water SW 18c is turned on in Step 1. In the ON state, the process proceeds to step 2 where the pump 16 is driven and the hot water in the heating container 8 is discharged from the tapping pipe 17. In step 3, it is determined by the water level detection means 11 whether the water level in the heating container 8 has become zero. If hot water still remains in the heating container 8, the answer is NO, and the process returns to step 1 to wait for the hot water operation by the hot water SW 18c.
[0022]
On the contrary, when the water level becomes 0, the inside of the heating container 8 is emptied, so that the determination becomes YES and the process proceeds to step 4. In step 4, the pump 16 is turned off, and the rinse cleaning means 20 a switches the switching valve 14 to the heating container 8 side, opens the water supply valve 6 and starts water supply to the heating container 8, and the water level detection means 11 fills up. Continue the water supply process until it is detected. When full water is detected, the flow proceeds to step 5 to close the water supply valve 6 to stop water supply to the heating container 8, drive the pump 16, and discharge the water in the heating container 8 that is full from the hot water pipe 17. Thus, the water level detection means 11 detects the water level 0 and continues the drainage process until there is no water in the heating container 8. When there is no water in the heating container 8, the process proceeds to step 6.
[0023]
In Step 6, the same water supply process operation as in Step 4 is performed, and the process proceeds to Step 7, and in Step 7, the same drainage process operation as in Step 5 is performed. In steps 8 and 9, the same water supply process and drainage process as in steps 4 and 5 are performed, and finally, the water supply and drainage processes are automatically repeated three times.
[0024]
Next, the movement of the storage unit 20b and the rinse cleaning return unit 20c will be described with reference to FIG. In step 10, when the rinsing means 20a is in the state of automatic draining for the first time, that is, in step 5 in FIG. 3, if a power failure occurs in the commercial power source 19 in step 11, the microcomputer 20 In the case of this operation process, in this embodiment, the information of the first automatic drainage of the rinse cleaning process is stored in the storage means 20b in step 12.
[0025]
Next, when the power failure of the commercial power supply 19 is restored in step 13 and power is supplied to the hot water supply device, the answer is YES, and the rinse cleaning return means 20c is stored in the storage means 20b in step 14 when the previous power failure occurred. Read the status of the hot water supply device. Then, it is determined whether or not the content read in step 15 is a rinse cleaning. Here, if it is rinse cleaning that is stored in the storage means 20b, the routine proceeds to step 16, and the rinse cleaning return means 20c is read out from the storage means 20b to the rinse cleaning means 20a in step 16. 3, that is, a start signal starting from step 5 in FIG. 3 is output, and the rinsing cleaning means 20a is the first automatic draining of the rinsing cleaning process in accordance with the start signal received from the rinsing cleaning return means 20c. That is, the operation starts from step 5 in FIG.
[0026]
If the content read in step 15 is not rinsing cleaning such as water supply or heat retention, the answer is NO, regardless of the operation process stored in the storage means 20b. The hot water supply device that maintains the ready state is operated.
[0027]
As described above, according to the present embodiment, by providing the rinse cleaning means 20a, the storage means 20b, and the rinse cleaning return means 20c, a power failure occurs during the rinse cleaning for cleaning the inside of the heating container, and the rinse cleaning is interrupted. However, since the rinsing process is resumed from the continuation of the rinsing cleaning after the power failure is restored, the rinsing cleaning is prevented from being finished in an insufficient state, which is sanitary.
[0028]
In addition, not all states stored in the storage means are restored, but if there is an interruption, only the problematic rinsing cleaning is restored, so the program of the microcomputer 20 is also simpler than when all the operation steps are restored. Therefore, it is possible to provide a hot water supply apparatus that is superior in terms of hygiene and cost.
[0029]
In the present embodiment, the number of continuous repetitions of water supply and drainage in the rinsing process is set to 3. However, there is no problem even if the effect and process time are adjusted by increasing or decreasing the number. Further, in this embodiment, the water supplied into the heating container 8 is drained immediately, but there is no problem even if draining after a while. Moreover, although the supplied water was only drained in the present embodiment, there is no problem even if the supplied water is heated and drained to increase the effect of rinsing.
[0030]
Further, in this embodiment, the user operates the tapping SW 18c in step 1 for pouring hot hot water. However, there is no problem even if automatic pouring is also performed in step 1 for pouring hot hot water. In this embodiment, the memory means 20b uses a memory that does not require a power supply for storage, but there is no problem even if a memory that requires a power supply is used.
[0031]
(Example 2)
Hereinafter, a second embodiment of the present invention will be described with reference to FIG. In addition, about the whole structure of a present Example, about the component same as Example 1, the same number is attached | subjected and description is abbreviate | omitted.
[0032]
In the microcomputer 20, when power is supplied to the microcomputer 20 from the commercial power supply 19, if the content stored in the storage unit 20 b is in the middle of the rinse cleaning process, the rinse cleaning unit 20 a is started. A cleaning reset means 20d is provided.
[0033]
The movement of the rinse cleaning reset unit 20d will be described with reference to FIG. In addition, about the same movement as Example 1, the same step number is attached | subjected and description is abbreviate | omitted. In step 15, the rinse cleaning reset unit 20d determines whether the read content is rinse cleaning. Here, if it is rinse cleaning that has been stored in the storage means 20b, the routine proceeds to step 17, and in step 17, the rinse cleaning reset means 20d causes the rinse cleaning means 20a to start from the beginning of the rinse cleaning process, that is, FIG. A start signal starting from step 1 is output. When the rinse cleaning means 20a receives a signal from the rinse cleaning reset means 20d, the operation starts from the beginning of the rinse cleaning process, that is, from step 1 in FIG.
[0034]
As described above, according to this embodiment, by providing the rinse cleaning reset unit 20d instead of the rinse cleaning return unit 20c, even if a power failure occurs during the rinse cleaning for cleaning the inside of the heating container, Since the rinse cleaning is performed again from the beginning, it is possible to provide a hot water supply device that has sufficient rinse cleaning capability and is hygienic and safe even if the power failure lasts for a long time.
[0035]
Example 3
The third embodiment of the present invention will be described below with reference to FIG. 7 which is a detailed view of the operation display unit 18 of the present embodiment. The overall configuration of the present embodiment is the same as that of the first embodiment, and the same reference numerals are given and description thereof is omitted.
[0036]
The cleaning stop LED 18h which is a cleaning power failure display means provided in the operation display unit 18 is lit by the rinse cleaning return means 20c sending a start signal to the rinse cleaning means 20a and outputting a lighting signal.
[0037]
As described above, according to the present embodiment, by providing the cleaning stop LED 18h that is a power failure display means during cleaning, when a power failure occurs during the rinsing cleaning and the rinsing cleaning process is resumed after the power failure recovery, it is indicated to the user. Because it is displayed and informed, even if a power outage occurs while the user is away from the site during the rinse cleaning and the time of the rinse cleaning process is prolonged, the reason can be understood at a glance, and the user is anxious. It is possible to provide a hot water supply device that does not have any.
[0038]
(Example 4)
Hereinafter, a fourth embodiment of the present invention will be described with reference to the drawings. FIG. 8 is an overall configuration diagram of the present embodiment, and the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
[0039]
The microcomputer 20 is provided with an abnormal time rinsing means 20e for starting the operation of the rinsing cleaning means 20a when the content read from the storage means 20b is an abnormal content such as a device failure or a user's erroneous operation.
[0040]
The operation of the abnormal time rinsing means 20e will be described with reference to FIG. In step 18, when the water temperature measured by the thermistor 10 reaches 110 ° C., which exceeds the heat retention temperature of 85 ° C., the microcomputer 20 a determines that the heater 7 or the thermistor 10 is abnormal and determines that the temperature is abnormally high. As shown in FIG. 10, the unlock LED 18e blinks to notify the user that the temperature is abnormally high. The operation display unit 18 is the same component as that of the first embodiment, and the same reference numerals are given and description thereof is omitted.
[0041]
Next, when a power failure of the commercial power supply 19 occurs in step 19 in an abnormally high temperature state, in step 20, the microcomputer 20 provides information on the operation process of the hot water supply apparatus that was being performed at that time, in this embodiment, the abnormally high temperature state. It memorize | stores in the memory | storage means 20b.
[0042]
Next, when the power failure of the commercial power source 19 is restored in step 21, the abnormal time rinsing means 20e reads the state of the hot water supply device when the previous power failure occurred, which is stored in the storage means 20b in step 22. Then, it is determined whether or not the content read in step 23 is an abnormal state such as a device failure or a user's erroneous operation. Here, if the storage means 20b is in an abnormally high temperature state, it is YES because it is an abnormal state such as a malfunction of the device or an erroneous operation by the user, and the routine proceeds to step 24. 20e outputs to the rinse cleaning means 20a a start signal starting from the beginning of the rinse cleaning process, that is, from step 1 of the operation diagram 3. In accordance with the start signal received from the abnormal time rinsing means 20e, the rinsing cleaning means 20a starts its operation from the beginning of the rinsing process, that is, from step 1 in the operation diagram 3.
[0043]
On the other hand, if the stored content is not an abnormal state such as a device failure or an erroneous operation by the user in step 23, the determination is NO, and the process of the abnormal time rinsing means 20e is terminated.
[0044]
As described above, according to the present embodiment, by providing the abnormal-time rinsing means 20e, when an abnormal state such as a malfunction of the device or an erroneous operation by the user occurs, the power is turned off and the power is turned on again automatically. Since the rinse cleaning means 20a operates to perform the rinse cleaning in the heating container 8, the abnormal state is recovered by repair or the like while the power is turned off, and the inside of the heating container 8 becomes unsanitary during that time. Even if it is, a hot water supply device that can be used with confidence can be provided.
[0045]
In the present embodiment, an abnormally high temperature state due to a failure of the heater 7 or the thermistor 10 is cited as an abnormal state. However, the water supply valve 6, the water level detection means 11, the switching valve 14, the pump 16, There is no problem with other misuses such as a failure of the microcomputer 20 or a failure state of the device.
[0046]
(Example 5)
The fifth embodiment of the present invention will be described below with reference to the drawings. FIG. 11 is an overall configuration diagram of the present embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.
[0047]
In the microcomputer 20, there is provided an erroneous information rinsing means 20f for starting the operation of the rinsing cleaning means 20a when the contents read from the storage means 20b are not possible data that does not apply to all the operation steps.
[0048]
The movement of the erroneous information rinsing means 20f will be described with reference to FIG. In step 25, the microcomputer 20 a determines that the water level in the heating container 8 has dropped from the full water level by the water level detection means 11, switches the switching valve 14 to the heating container 8 side, and opens the water supply valve 6. The water supply state is such that water is supplied into the heating container 8.
[0049]
Next, when a power failure occurs in the commercial power source 19 in step 26, the microcomputer 20 stores the information on the operation process of the hot water supply apparatus that has been performed at that time, in the present embodiment, the water supply state in the storage means 20b in step 27. To do.
[0050]
Next, when the power failure of the commercial power supply 19 is restored in step 28, the erroneous information rinsing means 20f reads the state of the hot water supply device when the previous power failure occurred, which is stored in the storage means 20b in step 29.
[0051]
Then, in step 30, it is determined whether the read content applies to any one of the operation states of the hot water supply device such as a water supply state, a heat retaining state, a rinse cleaning state, or an abnormal state.
[0052]
If the read state does not correspond to any of the above, it is incorrect information, so the determination is YES, and the process proceeds to step 31. In step 31, the erroneous information rinsing means 20f causes the storage means 20b to fail, data corruption due to external noise, etc. When it is determined that a trouble has occurred, the erroneous information rinsing means 20f outputs a start signal starting from the beginning of the rinsing process, that is, from step 1 of the operation diagram 3, to the rinsing means 20a. In accordance with the start signal received from the rinse cleaning return means 20c, the rinse cleaning means 20a starts the operation from the beginning of the rinse cleaning process, that is, from step 1 in the operation diagram.
[0053]
On the other hand, if the stored content matches any one of the operating states of the hot water supply device such as the water supply state, the heat retaining state, the rinse cleaning state, or the abnormal state in step 30, NO is determined and the processing of the erroneous information rinsing means 20f is terminated. .
[0054]
As described above, according to the present embodiment, by providing the erroneous information rinsing means 20f, it is impossible to determine the correct operation process before the power failure due to a failure of the storage means 20b or the stored information being distorted by noise or the like. Since the heating container 8 is rinsed, a hot water supply device that can be used in a sanitary manner can be provided even if the storage content of the storage means 20b is not correct.
[0055]
(Example 6)
The sixth embodiment of the present invention will be described below with reference to the drawings. FIG. 13 is a configuration diagram of the present embodiment, and the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
[0056]
In the microcomputer 20, if nothing is recorded in the information read from the storage means 20b, an initial rinse means 20g for starting the operation of the rinse cleaning means 20a is provided.
[0057]
The movement of the first time rinsing means 20g will be described with reference to FIG. When the commercial power supply 19 is turned on in step 32, the first time rinsing means 20g reads the state of the hot water supply device when the previous power failure occurred, which is stored in the storage means 20b in step 33. Then, in step 34, it is determined whether or not the read content has no information at the time of the previous power failure, that is, whether or not the hot water supply device delivered is turned on for the first time.
[0058]
If it is determined that the power has been turned on for the first time without information, the process proceeds to step 35. At step 35, the first time rinsing means 20g is sent to the rinsing cleaning means 20a from the beginning of the rinsing process, that is, step 1 in the operation diagram 3. A start signal starting from is output. In accordance with the start signal received from the rinse cleaning return means 20c, the rinse cleaning means 20a starts its operation from the beginning of the rinse cleaning process, that is, from step 1 of the operation diagram 3.
[0059]
On the other hand, if there is information on the state of the hot water supply device at the time of the previous power failure in step 34, the power supply is not turned on for the first time, so the answer is NO, and the process of the first time rinsing means 20g is terminated.
[0060]
As described above, according to the present embodiment, by providing the first-time rinsing means 20g, when the hot water supply device is used for the first time, the rinsing cleaning in the heating container 8 is always performed. A hot water supply apparatus that can be started can be provided.
[0061]
(Example 7)
The seventh embodiment of the present invention will be described below with reference to the drawings. FIG. 15 is a block diagram of the present embodiment. The same components as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.
[0062]
In the microcomputer 20, there is provided an erasing means 20h for erasing the operation process stored in the storage means 20b when the rinsing cleaning return means 20c operates.
[0063]
The movement of the erasing means 20h will be described with reference to FIG. In addition, about the same movement as Example 1, the same step number is attached | subjected and description is abbreviate | omitted. In step 16, the rinse cleaning return means 20c outputs a start signal starting from the first automatic draining of the rinse cleaning process read out to the rinse cleaning means 20a, that is, step 5 in FIG. 3, and the rinse cleaning means 20a returns to the rinse cleaning return. In response to the start signal received from the means 20c, the operation starts from the first automatic drain in the rinsing process, that is, step 5 in FIG.
[0064]
If the content read in step 15 is not rinsing cleaning such as water supply or heat retention, the answer is NO, regardless of the operation process stored in the storage means 20b. The hot water supply device that maintains the ready state is operated.
[0065]
The erasing unit 20h writes 0 data, that is, no operation process information, in the storage unit 20b in step 36 after the rinse cleaning return unit 20c operates.
[0066]
As described above, according to the present embodiment, by providing the erasing unit 20h, the operation of the microcomputer 20 is not stored in the storage unit 20b by any chance due to malfunction of the device. Even if the operation is stopped, since the storage means 20b is cleared, the microcomputer 20 starts to operate again and does not move according to the operation process that was erroneously stored last time. A hot water supply apparatus can be provided.
[0067]
【The invention's effect】
As described above, according to the present invention, even if a power failure occurs during the rinsing cleaning for cleaning the inside of the heating vessel and the rinsing cleaning is interrupted, the rinsing cleaning can be resumed from the continuation of the rinsing cleaning after the recovery from the power failure. It doesn't end in a safe state and is hygienic and safe. In addition, not all the states stored in the storage means are restored, but only the rinsing cleaning, which may cause a hygienic problem if interrupted, is restored, so that the program processing becomes simple and hygienic and cost-effective. In addition, it is possible to provide a hot water supply apparatus that is superior to the above.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an entire hot water supply apparatus according to a first embodiment of the present invention.
FIG. 2 is a plan view of an operation display unit in the hot water supply apparatus.
FIG. 3 is a flowchart showing the operation of a rinse cleaning means in the hot water supply apparatus.
FIG. 4 is a flowchart showing the operation of the storage means and the rinse cleaning return means in the hot water supply apparatus.
FIG. 5 is a sectional view showing the entire hot water supply apparatus according to a second embodiment of the present invention.
FIG. 6 is a flowchart showing an operation of a rinse cleaning resetting unit in the hot water supply apparatus.
FIG. 7 is a plan view of an operation display unit according to a third embodiment of the present invention.
FIG. 8 is a sectional view showing the entire hot water supply apparatus in a fourth embodiment of the present invention.
FIG. 9 is a flowchart showing the operation of the rinsing means at the time of abnormality in the hot water supply apparatus.
FIG. 10 is a plan view of an operation display unit in the hot water supply apparatus.
FIG. 11 is a sectional view showing the entire hot water supply apparatus in a fifth embodiment of the present invention.
FIG. 12 is a flowchart showing the operation of an error-free information rinsing means in the hot water supply apparatus.
FIG. 13 is a sectional view showing the entire hot water supply apparatus in a sixth embodiment of the present invention.
FIG. 14 is a flowchart showing the operation of the first rinsing means in the hot water supply apparatus.
FIG. 15 is a sectional view showing the entire hot water supply apparatus according to a seventh embodiment of the present invention.
FIG. 16 is a flowchart showing the operation of the erasing means in the hot water supply apparatus.
[Explanation of symbols]
3 water pipes
6 Water supply valve
8 Heating container
9 Water supply route
16 pump
18h Cleaning stop LED (Power failure indicator during cleaning)
20 Microcomputer (control means)
20a Rinsing cleaning means
20b storage means
20c Rinse washing return means
20d Rinsing cleaning reset means
20e Rinsing means for abnormal conditions
20f Incorrect information rinsing means
20g First time rinsing means
20h Erasing means

Claims (7)

A heating container for heating liquid, a water supply valve for controlling water supply provided in a water supply path from a water pipe to the heating container, a pump for discharging liquid in the heating container, and the water supply valve and the pump are controlled. The control means, and the control means includes a rinsing washing means for automatically performing a rinsing washing process from pouring into the heating container to draining, and the control means performs the operation when the operation of the control means is stopped. Storage means for storing the operation process, and when the rinse means is stored in the storage means at the start of the operation of the control means, the operation is resumed from the middle of the rinse process stored in the storage means. A hot water supply apparatus having a rinsing cleaning return means. The hot water supply apparatus according to claim 1, further comprising a rinsing cleaning resetting unit that performs an operation from the beginning of the rinsing cleaning step in place of the rinsing cleaning return unit. 3. A power failure display means during cleaning that indicates that a power failure occurred during the rinse cleaning when the storage means stored in the storage means at the start of the operation of the control means indicates a power failure during cleaning. Water heater. The storage means stored in the storage means at the start of the operation of the control means has an abnormal time rinsing means for operating the rinsing cleaning means in the case of an abnormal state such as a device failure or a user's erroneous operation. A hot water supply apparatus according to claim 1. 5. An erroneous information rinsing means for operating the rinsing cleaning means when there is no data on the operation process at the time of the previous power failure stored in the storage means at the start of operation of the control means. The hot water supply apparatus according to item 1. The hot water supply apparatus according to any one of claims 1 to 5, further comprising an initial rinse means for operating the rinse cleaning means when information is not stored in the storage means at the start of operation of the control means. 7. The apparatus according to claim 1, further comprising: an erasing unit that erases information on an operation process at the time of the previous power failure stored in the storage unit after determining an operation process stored in the storage unit at the start of operation of the control unit. The hot water supply apparatus as described in the item.

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