JPH08303861A - Automatic hot water supply means - Google Patents

Abstract

PURPOSE: To provide an automatic hot water supply means capable of carrying out a proper and automatic hot water supply operation even when there is a difference between the outlet side and the return port side of a following boil circulating passage attached to a bath tub. CONSTITUTION: The hot water of initial basic water quantity is supplied after the recognizing operation of bath tub hot water for recognizing that the flow of hot water in a bath tub is first detected when a circulating pump 18 provided in a following boil circulating passage connected to the bath tub is driven, so that an automatic hot water supply operation is carried out. The initial basic water quantity is previously applied to an initial basic water quantity data memory 38. However, after change data is input as change basic water quantity from a change data input part 39, th change data is stored in a change data storing part 35 and the change basic water quantity is supplied as the initial basic water quantity. Thus, the initial basic water quantity is supplied depending on the attached state of the following boil circulating passage to the bath tub.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic water filling device having a bath automatic water filling function.

[0002]

2. Description of the Related Art As an automatic water filling device, the hot water produced by a hot water supply heat exchanger of a hot water supply source is sent to a reheating circulation pipe and dropped into a bathtub through this reheating circulation pipe to perform automatic water filling. Water heaters with hot water filling function are widely used.

FIG. 6 shows a piping system of this type of water heater with a water filling function. In the figure, a reheating heat exchanger 7 is provided above the bath burner 6, one end of a pipe 17 is connected to the inlet side of the reheating heat exchanger 7, and the other end of the pipe 17 is circulated. It is connected to the discharge side of the pump 18. A bath temperature sensor 9 such as a thermistor for detecting the temperature of the water flow is provided in the conduit 17.

The suction side of the circulation pump 18 is a reheating circulation path.
Fourteen return pipes 15 are connected to the return pipe 15 which is a circulation port.
The return port side (inlet side) of is connected to the side wall of the bathtub 1 via the circulating metal fitting 2. The return pipe 15 is provided with a reheating water flow switch 16 as a water flow detection sensor that detects water flow and outputs an ON signal. The outlet side of the reheating heat exchanger 7 is connected to the inlet side of the outward pipe 20 of the reheating circulation passage 14, and the outlet side of the outward pipe 20 is connected to the bathtub side wall via the circulation fitting 2.

In FIG. 6, the outlet side of the forward pipe 20 is shown above the return port side of the return pipe 15 so that the piping system can be easily understood. However, in practice, for example, in FIG. ),
As shown in the front view of the bathtub wall surface, the outlet side of the outward pipe 20 and the return port side of the return pipe 15 are at substantially the same height,
It is attached to the circulation fitting 2 or is attached so that the outlet side of the forward pipe 20 is lower than the return port side of the return pipe 15 as shown in the sectional view of FIG. Things are used.

As shown in FIG. 6, a hot water supply heat exchanger 5 as a hot water supply source is provided on the upper side of the hot water supply burner 4, and a water supply pipe 11 is connected to the inlet side of the hot water supply heat exchanger 5 to supply water. The pipe 11 is connected to a water supply source such as tap water.
A main flow sensor 10 is provided at 11. A hot water supply pipe 12 is connected to the outlet side of the hot water supply heat exchanger 5, and the hot water supply pipe 12 is guided to a desired hot water supply place such as a kitchen.

A hot water filling pipe 21 is branched into the hot water supply pipe 12, and a hot water pouring solenoid valve 24 as a hot water pouring control valve and a flow rate detecting device for detecting the flow rate of the hot water filling are provided in the hot water filling pipe 21. Sensor 19
And a pressure sensor 13 as a water level detection sensor for detecting the bath water level. In the figure, 33 is a gas pipe,
Reference numeral 42 is an inlet water temperature sensor, and 43 is an outlet hot water temperature sensor.

The hot water supply operation, the reheating operation, and the pouring hot water filling operation of this water heater with a water filling function are performed by a control device 44, and a remote controller 45 is connected to the control device 44. With the water level setting button etc. of this remote control 45,
It is possible to fill the water with the designated set water level by designating the set water level.

In this type of water heater with a water filling function, the remote controller 45 designates the set water level and temperature of the water filling, and when the automatic operation switch of the remote controller 45 is turned on, the pouring electromagnetic valve
24 is opened and water enters the hot water supply heat exchanger 5 from the water supply pipe 11. When the main flow rate sensor 10 detects the water flow through the water supply pipe 11, the hot water supply burner 4 burns, and the combustion thermal power heats the water passing through the hot water supply heat exchanger 5 into hot water. It enters into the reheating circuit 14 through the tensioning pipe 21, and further the return pipe 15 and the forward pipe of this reheating circuit 14
It is poured into the bathtub 1 through 20.

In order to perform this pouring and filling operation accurately,
As shown in FIG. 8, a control device 44 for this type of automatic water filling device is provided with a pouring control unit 31, and the control device 44 is provided with an initial reference water amount data memory 38. There is. The remote controller 45 is provided with an operation command section 46, and is configured to issue commands such as a pouring and filling operation.

The pouring controller 31 has a sequence program for creating and storing the condition data of the water filling during the operation in the storage mode, and performing the actual water filling during the operation in the execution mode based on the stored condition data. are doing. The initial reference water amount data memory 38 is a ROM (Read Only Memory).
It is formed by.

9 and 10 are flowcharts showing the filling operation in the storage mode performed according to the sequence program. The operation of the conventional water heater with a water filling function having the system configuration shown in FIG. 6 will be described below based on this flowchart. First,
In step 101 of FIG. 9, when the automatic switch provided on the remote controller 45 or the like is turned on, the operation command section of the remote controller 45
A command for automatic filling is added from the pouring controller 31 to the pouring controller 31. At step 102, as shown in FIG. 5, priming water of A liter is first dropped into the bathtub 1, and then at step 103,
When the circulation pump 18 is driven for a short time, step 104
Confirm that the reheating water flow switch 16 is turned off. If the reheating water flow switch 16 is not turned off, a storage error is notified in step 123.

Next, in step 105, B liters of hot water having a unit water volume shown in FIG. 5 are intermittently dropped,
Every time this unit amount of hot and cold water is dropped, step
At 106, the circulation pump 18 is driven for a short time, and at step 107, it is judged whether or not the reheating water flow switch 16 is turned on, and the circulation of hot water in the reheating circulation path 14 (flow).
Performs a bathtub hot water check operation to confirm that was first detected.

The reheating switch 16 is turned on at the position P ₀ (FIG. 5) where the bath water level exceeds the position of the return pipe 15, that is, the position of the circulation fitting 2, but at this time, the circulation pump 18 When turned on, there is a risk that air will be taken into the reheating circulation pipe line 14 and the bath water will circulate, and if air is taken in, there will be an error in the pressure detection of the water level, so there will be air in the reheating circulation water. After the bath hot water confirmation operation so that the water level is not taken in, C liter hot water determined as the initial reference water amount is further added in the step of FIG.
The molten metal is poured at 108, and the water level at this time is set as the reference water level, and the pressure P _A at this reference water level is detected by the pressure sensor 13 at step 109. The value of C liter is defined as the pouring amount (initial reference water amount) for supplying hot water up to the reference water level after the bath hot water confirmation operation, and is stored in the initial reference water amount data memory 38 as the initial reference water amount storage unit. .

Next, in step 110, hot water of the water amount D liter shown in FIG. 5 is supplied, and in step 111, the water level at this time is detected by the pressure sensor 13 as the pressure value Pb. Then, in step 112, the pressure difference ΔP = P _b
-P _a is obtained, and in step 113, this pressure difference ΔP is X cm.
It is determined whether or not the above. The value of this X is the same as in step 11 above.
At 0, it is a value set based on the expected amount of water level difference that rises when pouring D liters, and an appropriate value greater than 0 is set. If the pressure difference ΔP is less than X cm, an error is notified in step 124, and the pressure difference ΔP
When P is Xcm or more, the process proceeds to step 114. And
In step 114, the D liter is adjusted to the pressure difference Pb-Pa.
The opening area S of the bathtub 1 is calculated by dividing by the value of. Incidentally, the steps 101 to 114
The condition data of the water filling prepared by the above operations is stored in the pouring controller 31.

Next, in step 116 of FIG. 10, it is judged whether or not the water level at this time has reached a preset water level designated in advance by the remote controller 45 or the like.
By the operation of 118, pouring is performed until the bath water level reaches the set water level, and when the set water level is reached, the process proceeds to step 119. Then, in step 119, the circulation pump 18 is driven with the pouring solenoid valve 24 closed, and then step 120
In step 121, the reheating operation is performed until it is determined that the bath temperature reaches the set temperature designated by the remote controller 45 or the like in advance, and when the bath temperature reaches the set temperature, the boiling buzzer sounds in step 122.

In the operation in the execution mode, based on the condition data stored in the operation in the storage mode, first, when the circulation pump 18 is driven for a short time, is the reheating water switch 16 turned on? When it is determined that the reheating water flow switch 16 is turned on for the first time, by pouring C liters as the initial reference water amount, pouring to the reference water level is performed. . And
The pouring amount from this reference water level to the specified set water level,
For example, the pouring amount up to the set water level is performed by pouring the pouring amount of the pouring amount obtained by the calculation of the opening area S × (set water level−detected water level).

[0018]

By the way, recently,
As shown in (c) of FIG. 7, the reheating circulation path 14 is connected to the bath 1
A circulation fitting is used in which the outlet side of the outward pipe 20 is attached to the upper side of the return port side of the return pipe 15 when connecting to the.
In such a metal fitting, even if the initial reference water amount (for example, 10 liters) is poured after the bath hot water confirmation operation, the bath water level does not reach the upper side of the outgoing pipe 20 on the outlet side. Then, a water slide will occur and the reheating circuit will
Air is entrained in 14 which causes step 108 of FIG.
After C L pouring in to, upon detection of the pressure P _a,
This pressure P _a is not a pressure corresponding to the water level, but becomes a value considerably larger than the actual pressure, for example.

In this case, after the pressure P _a is detected, the pressure P _b after pouring D liter (for example, 30 liter) is higher than the pressure P _a before pouring, even though the pouring of D liter (for example, 30 liter) is performed in step 110. Becomes smaller, and the pressure difference ΔP = P _b −
Since the value of P _a becomes smaller than 0, the pouring control unit 31 issues an error notification even though there is no problem such as pressure detection by the pressure sensor 13, and as shown in FIG. There was a problem that the operation after step 114 was stopped.

The present invention has been made to solve the above problems, and even if the return port side of the reheating circulation path is below the outlet side and there is a head drop, automatic filling operation is performed. An object of the present invention is to provide an automatic water filling device that can be accurately performed.

[0021]

In order to achieve the above object, the present invention is constructed as follows. That is, the first aspect of the present invention is provided with a piping system for dropping hot water from a hot water supply source into the bathtub through a reheating circulation path connected to the side wall of the bathtub, and in the reheating circulation path, a circulation pump and hot water for circulating hot and cold water in the bathtub. Is provided with a flowing water detection sensor that detects the flow of water, and a water level detection sensor that detects the water level of the bathtub is provided, and when the circulating pump is driven, the flow of hot water in the bathtub is first detected by the flowing water detection sensor. After confirming that it has been detected, after the bath water confirmation operation, the initial reference water amount storage unit that stores the amount of water to be poured to the reference water level and is defined as the initial reference water amount, and this initial reference water amount storage unit A pouring control for pouring the initial standard amount of hot water stored in the bath after the bath hot water confirmation operation, and then pouring the pouring amount from the standard water level to the designated set water level. An automatic water filling device comprising: a change data input unit for inputting change data of the initial reference water amount as a change reference water amount; a storage unit for storing the input change reference water amount data; and this storage unit. Is provided with a data writing unit for writing the change reference data, and after the change reference water amount is input, the change reference water amount is poured as an initial reference water amount. .

The second aspect of the present invention further comprises a piping system for dropping hot water from the hot water supply source into the bathtub through a reheating circulation path connected to the side wall of the bathtub, and the circulation system for circulating hot water in the bathtub in the reheating circulation path. A pump and a flowing water detection sensor that detects the flow of hot water are provided, and a water level detection sensor that detects the water level of the bathtub is provided.When the circulating pump is driven, the flow of hot water in the bathtub is detected by the flowing water detection sensor. Is first detected, and after this bathtub hot water confirmation operation, the initial reference water amount storage unit that stores the amount of water to be poured to the reference water level and is defined as the initial reference water amount, and the initial reference water amount storage unit. The initial reference amount of hot water stored in the water amount storage unit is poured after the bathtub hot water confirmation operation, and then, the pouring amount from the reference water level to the designated set water level is poured. An automatic water filling device having a hot water control unit, wherein the data of the initial reference water amount is given to the selection data storage unit as a plurality of data having different water amounts, and the water amount given to the selection data storage unit A water amount data selection input unit for selecting and instructing a specified water amount out of the data is provided, and the water amount selected and instructed by the water amount data selection input unit is poured as an initial reference water amount. .

[0023]

In the first aspect of the present invention having the above structure, the change data input unit inputs the change data of the initial reference water amount as the change reference water amount, and the input change reference water amount data is stored in the storage unit by the data writing unit. Written in.
After the change reference water amount is input, this change reference water amount is set as the initial reference water amount, and hot water of this water amount is poured after the bathtub hot water confirmation operation, and then pouring up to the specified set water level. The amount of hot water is poured.

Further, according to the second aspect of the present invention, of the plurality of water amount data having different water amounts given to the selection data storage unit, the designated water amount is selected and instructed by the water amount data selection input unit. The amount of water collected is used as the initial reference water amount. Then, similar to the first aspect of the present invention, after the bath hot water confirmation operation, the initial reference water amount of hot water is poured, and thereafter, the pouring amount up to the designated set water level is poured.

[0025]

Embodiments of the present invention will be described below with reference to the drawings. In the description of the present embodiment, the same reference numerals will be given to the same names as those in the conventional example, and the duplicated description will be omitted.
The automatic water filling device of the present embodiment is a water heater with a water filling function having the system configuration shown in FIG. 6, and FIG. 1 shows the control unit of the first embodiment of the automatic water filling device according to the present invention. The main configuration is shown. A feature of this embodiment different from the conventional example is that the circuit configuration shown in FIG. 1 is provided to provide a function of changing the initial reference water amount.

As shown in the figure, the control unit 44 includes a pouring control unit 31, a data memory 30, a priority data writing means 33,
The priority determination unit 34, the change data storage unit 35, the change data writing unit 36, and the initial reference water amount data memory 38 are configured to have, while the remote controller 45 has a change data input unit 39,
An operation command unit 46 and a display unit 40 are provided.

Also in this embodiment, the functions of the initial reference water amount data memory 38 and the operation command section 46 are almost the same as those of the conventional example, and therefore the explanation thereof will be omitted.

The change data input section 39 is for inputting the change data of the initial reference water amount as the change reference water amount, and the change data is input by operating the operation button provided on the remote controller 45. Has become.

The change data writing section 36 stores the change data added from the change data input section 39 into the change data storage section.
It functions as a data writing unit for writing to 35.

The change data storage unit 35 functions as a storage unit for storing the change reference water amount data written by the change data writing unit 36, and is an EEPROM.
(Electrically Erasable / Programable Read Only Memo
ry) and other non-volatile memory that can be freely read from and written to. Then, for example, when the change reference water amount data (for example, 30 liters) is written by the change data writing unit 36 as described above, the water amount value such as 30 liters is written in the change data storage unit 35.

The priority determining unit 34 includes the change data input unit 39.
After the change data is input by, the change data is given priority over the initial reference water amount given to the initial reference water amount data memory 38. Add to 33.
Before the change data is input, the initial reference water amount data memory 38 is added to the priority data writing means 33.

The priority data writing means 33 is a priority determining section.
It writes the water volume data that is prioritized by 34. The data memory 30 stores the data on the amount of water added from the priority determination unit 34.

The pouring control section 31 has the change data input section 39.
Before the change data of the initial standard water amount is input from, the hot water of the initial standard water amount previously given to the initial standard water amount data memory 38 is poured after the bathtub hot water confirmation operation by the same operation as the conventional example. After the change data is input by the change data input unit 39, priority is determined by the priority determination unit 34, and the change reference water amount written in the data memory 30 is poured as the initial reference water amount. Control the automatic filling operation.

FIG. 2 shows an example of the operation / display surface of the remote controller 45. For example, as shown in FIG. Button 51, water level setting button 56 to select and set the water level of hot water, hot water temperature setting button 52, bath temperature setting button 54
Operation buttons such as, and hot water supply set temperature display section 53, bath set temperature display section 55, water level display section 57, information display section 48, and other display sections are provided.

The display unit 40 shown in FIG.
Hot water supply set temperature display 53 and bath temperature display shown in FIG.
55, a water level display section 57, and an information display section 58 are shown.
If necessary, the remote controller 45 is provided with an operation command button for performing operations such as high-temperature hot water, drainage, reheating, and heat retention, and a display unit for displaying hot water temperature detected by the hot water temperature sensor 43. .

In this embodiment, the remote controller 45 is provided with an operation function called a hidden mode. For example,
Normally, the hot water supply temperature setting button 52 functions as an operation button for operating and inputting the set temperature of hot water supply, and the hot water supply set temperature display unit 53 functions as a display unit that displays the set temperature of hot water supply that has been set. However, if the automatic button 51 and the water level setting button 56 are simultaneously pressed for 5 seconds, the "water volume data input mode" is displayed on the information display section 48 as shown in FIG. 2 (b). At this time, the hot water supply temperature setting button 52 comes to function as a change reference water amount input button for inputting the change reference water amount, and the hot water supply set temperature display portion 53
Will function as the initial reference water volume change data display.

Then, for example, as shown in FIG. 7C, the outlet side of the forward pipe 20 of the reheating circulation passage 14 is attached above the return port side of the return pipe 15, and the difference between them is In such a case, as shown in FIG. 2B, the hot water supply temperature setting button 52, which functions as a change reference water amount input button, is operated to function as a change data display unit for the initial reference water amount. Adjust so that the display on the hot water temperature display section 53 is “30”.

After this operation, if the automatic button 51 and the water level setting button 56 are simultaneously pressed for 5 seconds, the operation / display surface of the remote controller 45 returns to the state shown in FIG. At this time, the value of the set change reference water amount is input to the change data input unit 39 of FIG. 1 as 30 liters by the operation in the cover mode.

The present embodiment is constructed as described above,
Also in the present embodiment, similar to the conventional example, for example, by operating the automatic button 51, when an operation command is added from the operation command unit 46 of the remote controller 45 to the pouring control unit 31 of the control device 44, the pouring control unit 31 By the control, the automatic filling operation is controlled in accordance with the flowcharts shown in FIGS. 9 and 10. In this control, for example, as shown in FIG.
When the outlet side of the forward pipe 20 is on the upper side than the return port side of the return pipe 15 and there is a head drop, the remote controller 45 is operated in the covert mode, and the change data input section 39 displays, for example, 50 When change data such as liters is input, this change data is written and stored in the change data storage unit 35 by the change data writing unit 36, and this stored change data is stored in the initial reference water amount by the priority determining unit 34. It is added to the priority data writing means 33 in preference to the initial setting data of the data memory 38.

Then, this priority-determined change data is
The data is written in the data memory 30 by the priority data writing means 33, the changed reference water amount is used as the initial reference water amount, and after the bath hot water confirmation operation, 30 liters (C liters) of pouring is performed in step 110 of FIG. At this time, as shown in FIG. 7C, the water level of the hot water in the bathtub is higher than the outlet side of the forward pipe 20 of the reheating circulation path 14. Therefore, unlike the conventional example where pouring of C liter = 10 liters was performed without inputting change data of the initial standard water volume data, no water collapse occurred, and the water level after pouring C liter was
It will be accurately detected as the reference water level P _a . Then, pouring from the standard water level to the set water level is performed.

According to the present embodiment, according to the above operation, depending on the mounting state of the reheating circulation path 14 to the bathtub 1 (difference in mounting height between the outlet side of the outward pipe 20 and the return port side of the return pipe 15). Then, after the change data is input by performing the change data input operation in the hidden mode of the remote controller 45,
This input changed reference water amount is poured as the initial reference water amount, and in order to control the automatic filling operation, even if there is a drop between the outlet side and the return port side of the reheating circulation path 14, It is possible to prevent the occurrence of water collapse after the initial reference amount of water is poured after confirming the bath water. for that reason,
Unlike the conventional water heater with a water filling function, during the automatic water filling operation, the pressure detected by the pressure sensor 13 becomes an incorrect value due to water collapse, which may result in an erroneous error notification or a smooth hot water supply. The progress of the tensioning operation is not hindered, and the automatic hot water filling operation can be performed accurately.

From the above, in this embodiment,
The operation condition setting operation of the automatic water filling operation (operation performed in the memory mode) performed by the bath builder etc. will be performed smoothly, and the bath user will always be comfortable to use the automatic water filling equipment. Can be used.

Further, according to the present embodiment, the change data input operation can be easily performed by using the remote controller 45, and the change data input operation is performed by the remote controller 45.
Unless the operator of the bath or the like intentionally operates the hidden mode to switch the remote controller 45 to the water volume data input mode, the operator of the hidden mode operates the hidden mode. Even if someone other than mischiefs or operates the remote control 45 that is set on the normal operation / display surface by mistake, the change data of the initial reference water volume will not be input by those operations, It is possible to prevent malfunction of the device due to incorrect input of change data.

FIG. 3 shows the main structure of the control portion of the second embodiment of the automatic water filling device according to the present invention. Similar to the first embodiment, the automatic water filling device of the present embodiment is also intended for the water heater with a water filling function shown in FIG. 6, and this embodiment is different from the first embodiment in the characteristic. This is because the change data writing unit 36 writes the change data of the initial reference water amount input by the change data input unit 39 into the initial reference water amount data memory 38. In this embodiment, the data memory 30, the priority determination unit 34, the change data storage unit 35, and the priority data writing unit 33 in the first embodiment are omitted. Also,
Also in this embodiment, the configuration and functions of the remote controller 45 are
The description is omitted because it is similar to the first embodiment.

In this embodiment, the initial reference water amount data memory
38 is a non-volatile memory such as an EEPROM that is readable and writable, and functions as an initial reference water amount storage unit that stores water amount data that is determined as an initial reference water amount, and the changed reference water amount written by the changed data writing unit 36. It also functions as a storage unit that stores the data.

Before the change data input unit 39 inputs the change data of the initial reference water amount, the pouring control unit 31 is based on the initial reference water amount previously given to the initial reference water amount data memory 38 as the initial reference water amount. Then, the same automatic filling operation control as in the conventional example and the first embodiment is performed, and after the value of the changed reference water amount is input from the changed data input unit 39, this changed reference water amount is set as the initial reference water amount ( In other words, the automatic filling operation control is performed based on the value of the initial reference water amount rewritten by the change data writing unit 36).

This embodiment is constructed as described above,
As in the first embodiment, by operating the hidden mode of the remote controller 45, the change data of the initial reference water amount can be input as the change reference water amount. Therefore, as in the first embodiment, By inputting the change data of the initial reference water amount according to the attachment state of the reheating circulation path 14 to the bathtub 1 and the like, it is possible to achieve the same effect as the first embodiment, and to perform the automatic filling operation. Can be done accurately.

FIG. 4 shows the construction of the main part of the control section of the third embodiment of the automatic water filling device according to the present invention. Similar to the first and second embodiments, the automatic water filling device of this embodiment is intended for the water heater with a water filling function of the system configuration shown in FIG. 6, and in this embodiment, the remote controller 45 is A water amount data selection input unit 37, a display unit 40, and an operation command unit 46 are provided and configured, and the control device 44 includes a pouring control unit 31, an initial reference water amount data memory 38, a selection data storage unit 28, and a data read / write unit. It is configured with 29.

The operation command section 46 of the remote controller 45 and the display section
Since the configuration and function of the pouring control unit 31 of the control device 40 and the control device 44 are almost the same as those of the first and second embodiments, the description thereof will be omitted.

The data for the initial reference water amount is given to the selection data storage unit 28 as a plurality of data having different water amounts. In this embodiment, the selection data storage unit 28 has a standard initial reference water amount of 10 liters. The water amount data of 30 liters and 50 liters are also given. The water amount data selection input unit 37 is for selecting and instructing a designated water amount from the water amount data given to the selection data storage unit 28.

The operation of the selection command is performed by using the operation function of the remote controller 45 in the hidden mode as in the first and second embodiments. In the present embodiment, for example,
As shown in FIG. 2B, when the display screen of the remote controller 45 is switched to the water amount data input mode, the hot water supply temperature setting button 52 functions as an initial reference water amount selection input button, and the hot water supply temperature display portion 53 displays the initial reference. It will function as a water quantity display. When the hot water supply temperature setting button 52 that functions as the initial reference water amount selection input button is operated, the display of the hot water supply temperature display unit 53 that functions as the initial reference water amount display unit,
Switching to 10, 30, 50, 10, etc. in sequence, the bath builder, etc., performs a water volume data selection command operation by selecting the state in which the desired water volume data is displayed. Is able to. In the present embodiment as well, after this selection command operation, by returning the display screen of the remote controller 45 to the normal state shown in FIG. 2A, the water amount data selection command from the water amount data selection input unit 37 is issued. It is added to the data read / write unit 29.

The data read / write unit 29 receives the water amount data selection command from the water amount data selection input unit 37,
Read the specified amount of water from the selection data storage unit 28,
Add to the initial reference water amount data memory 38. When the bath builder or the like does not perform the water volume data selection command operation by using the hidden mode function, the data read / write unit 29 gives the selection data storage unit 28 as the standard initial reference water volume. The value of the stored water amount data (10 liters) is added to the initial reference water amount data memory 38.

In this embodiment, the initial reference water amount data memory 38 is also formed by a non-volatile memory such as an EEPROM which is readable and writable as in the second embodiment. It functions as an initial reference water volume storage unit that stores the water volume data added from 29 as the initial reference water volume.

This embodiment is constructed as described above,
By operating the remote controller 45 in the hidden mode, the water amount data selection input unit 37 issues a selection command of specified data out of the water amount data provided to the selection data storage unit 28, and the value of the water amount selected is The data is read by the data read / write unit 29 and stored in the initial reference water amount data memory 38 as the initial reference water amount.

After the selection and input operation of such water amount data is performed, the selected water amount data is used as the initial reference water amount and the hot water is poured after the bath water confirmation operation to control the automatic filling operation. Done. When the selection input operation of the water amount data is not performed, the water amount given as the standard initial reference water amount in the selection data storage unit 28 is poured as the initial reference water amount after the bath hot water confirmation operation. The automatic filling operation is controlled.

According to this embodiment, the same effects as those of the first and second embodiments can be obtained by the above operation.

The present invention is not limited to the above-mentioned embodiments, and various embodiments can be adopted. For example, the change data storage unit 35 in the first embodiment and the initial reference water amount data memory 38 in the second and third embodiments.
Are formed by a non-volatile memory such as an EEPROM, but they are not necessarily formed by a non-volatile memory such as an EEPROM, and may have, for example, a RAM and a backup battery. With this configuration, by backing up the RAM with a battery using a backup battery or the like, even if the main power of the automatic water filling device is turned off, the change data storage unit 35 and the second and third embodiments are implemented. The data stored in the initial reference water amount data memory 38 in the example can be saved without being erased.

In the first embodiment, the priority determining unit
Change data prioritized in 34 priority data writing means
After the data is written and stored by 33, the automatic pouring operation control is performed by the pouring control unit 31 based on the written data stored in the data memory 30, but as shown by the broken line arrow in FIG. The change data may be directly added from the determination unit 34 to the pouring control unit 31 and the pouring control unit 31 may perform operation control.

Further, in the above-mentioned embodiment, the change data input operation and the water amount data selection command operation by the remote controller 45 are performed by using the hidden mode operation function provided in the remote controller 45. The water amount data selection command operation is not always performed by the hidden mode of the remote controller 45.For example, the operation / display surface of the remote controller 45 has a dedicated operation button for changing data input and a dedicated operation for water amount data selection command. A button may be provided, and the operation button may be used to input change data or issue a command to select water amount data. Further, a specific operation method such as a button operation at the time of the change data input operation or the water amount data selection command operation is not particularly limited and may be set appropriately.

Further, in the above embodiment, the change data input operation and the water amount data selection command operation are performed by using the remote controller 45. However, for example, a knob is slid on the control board on the control device 44 side. By providing an analog switch etc. that can input change data and select command of water volume data by operating it, slide switch type automatic hot water that performs change data input operation and water volume data selection command operation by operating this switch It may be used as a tension device.

Further, in the above-described embodiment, the operation / display surface of the remote controller 45 has the structure shown in FIG. 2, but the operation / display surface of the remote controller 45 is not particularly limited.
It is set appropriately.

[0062]

According to the present invention, when the circulation pump provided in the reheating circulation path is driven, the reference water level is confirmed after the bath water confirmation operation for confirming that the flow of hot water in the bath is first detected. Even if the return side of the reheating circulation path is changed, the value of the initial reference water volume to be poured up to is changed according to the mounting state of the reheating circulation path to the bathtub, or it can be selectively input. Even if it is installed below the outlet side and there is a drop in it, there is no water collapse after pouring hot water of the initial standard water amount, and it is automatically caused by water collapse as in the past. It is possible to prevent malfunction of the water filling operation, and it is possible to perform the automatic water filling operation smoothly and accurately. Therefore, it is possible to provide an excellent automatic water filling device capable of appropriately performing the automatic water filling operation or the like in accordance with the attached state of the attached state of the reheating circulation path to the bathtub in any state. be able to.

[Brief description of drawings]

FIG. 1 is a block diagram showing a main part configuration of a first embodiment of an automatic water filling device according to the present invention.

FIG. 2 is a remote controller for the automatic water filling device of the above embodiment.
FIG. 34 is an explanatory diagram showing a display example of the operation / display surface of 45.

FIG. 3 is a block diagram showing a main configuration of a control section of a second embodiment of an automatic water filling device according to the present invention.

FIG. 4 is a block diagram showing a main configuration of a control section of a third embodiment of the automatic water filling device according to the present invention.

FIG. 5 is an explanatory diagram of the pouring amount at each stage in the filling operation in the memory mode of the automatic filling device.

FIG. 6 is an explanatory diagram of a system configuration example of a water heater with a water filling function as an automatic water filling device.

FIG. 7 is an explanatory diagram showing an example of a state where the reheating circulation path in the automatic water filling device is attached to the bathtub.

FIG. 8 is a block diagram showing an automatic filling controller of a conventional automatic filling device.

FIG. 9 is a flowchart showing an automatic water filling operation of the automatic water filling device.

FIG. 10 is a flowchart following FIG. 9, showing an automatic water filling operation of the automatic water filling device.

[Explanation of symbols]

 14 Reheating circuit 15 Return pipe 20 Outgoing pipe 28 Selection data storage unit 29 Data read / write unit 31 Pouring control unit 35 Change data storage unit 36 Change data writing unit 37 Water amount data selection input unit 38 Initial reference water amount data memory 39 Change data input section

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[Procedure amendment]

[Submission date] June 8, 1995

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 5]

FIG.

[Figure 6]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 7]

[Figure 8]

[Figure 9]

[Figure 10]

Claims (2)

[Claims] 1. A piping system for dropping hot water from a hot water supply source into the bathtub through a reheating circulation path connected to the side wall of the bathtub, and a circulation pump for circulating hot water in the bathtub and a flow of the hot water are detected in the reheating circulation path. A flowing water detection sensor is provided, and a water level detecting sensor for detecting a bath water level is provided, and the flow of hot water in the bathtub is first detected by the flowing water detection sensor when the circulating pump is driven. And the initial reference water amount storage unit that stores the amount of water to be poured to the reference water level after this bathtub hot water confirmation operation and that is defined as the initial reference water amount, and the initial reference water amount storage unit that stores the initial reference water amount storage unit. Automatic with a pouring controller that pours a standard amount of hot water after the bath hot water confirmation operation, and then pours the pouring amount from the standard water level to a designated set water level A filling device, a change data input unit for inputting the change data of the initial reference water amount as a change reference water amount, a storage unit for storing the input change reference water amount data, and the change reference for the storage unit. An automatic water filling device comprising a data writing unit for writing data, and pouring the changed reference water amount as an initial reference water amount after the changed reference water amount is input. 2. A circulation system for dropping hot water from a hot water supply source into the bathtub through a reheating circulation path connected to the side wall of the bathtub, and a circulation pump for circulating the hot water in the bathtub and the flow of the hot water are detected in the reheating circulation path. A flowing water detection sensor is provided, and a water level detecting sensor for detecting a bath water level is provided, and the flow of hot water in the bathtub is first detected by the flowing water detection sensor when the circulating pump is driven. And the initial reference water amount storage unit that stores the amount of water to be poured to the reference water level after this bathtub hot water confirmation operation and that is defined as the initial reference water amount, and the initial reference water amount storage unit that stores the initial reference water amount storage unit. Automatic with a pouring controller that pours a standard amount of hot water after the bath hot water confirmation operation, and then pours the pouring amount from the standard water level to a designated set water level In the case of a water filling device, the data of the initial reference water amount is given to the selection data storage unit as a plurality of data having different water amounts, and the designated water amount among the water amount data given to the selection data storage unit is An automatic water filling device characterized in that a water quantity data selection input unit for selecting and commanding is provided, and the water quantity selected and commanded by the water quantity data selection input unit is poured as an initial reference water quantity.