JP2003148802A - Water heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote controller of a water heater not changing a normal hot water filling condition even when a setting condition is not recovered in a case where a bath temperature or bath hot water quantity setting condition has been changed; and to solve a problem in a conventional water heater that the automatic water filling is started under a changed setting condition and not under the normal hot water filling condition, when an automatic hot water filling switch is used after changing the setting condition, unless it is reset to the origina state. SOLUTION: In this remote controller of the water heater having: a water heater body 1 automatically filling the bath tub with the hot water; one or a plurality of remote controllers 23; and a bath temperature and hot water quantity setting function, the normal setting is automatically reset after the termination of hot-water keeping operation, even when the setting is changed during a bath time, so that the hot water is filled with the correct setting in the next.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water supply apparatus having a function of filling a bathtub with water and an automatic heat retention function of keeping a bath water temperature constant.

[0002]

2. Description of the Related Art Conventionally, in a water heater capable of automatically filling a bathtub, if the filling condition is set in advance by a remote controller, the filling bath automatically starts filling the bathtub by pressing the filling switch. When the set conditions are met, the filling of water is completed.

[0003]

However, in the conventional technique, if the bath temperature setting or the bath hot water amount setting condition is changed during bathing, unless the setting condition is returned again, the normal automatic filling switch is used next time. Not the water filling condition of
Automatic filling was started under the changed setting conditions. The present invention has been made to solve the above problems, and an object of the present invention is to provide a hot water supply device in which the normal hot water filling setting conditions are not changed without returning the setting conditions again.

[0004]

[Means for Solving the Problems and Their Actions and Effects] In order to achieve the above-mentioned object, the first aspect of the present invention is to set a body of a water heater capable of filling a bathtub with a bath temperature, a bath water amount, and the like. In a hot water supply device comprising one or a plurality of remote controllers and a control unit that controls the water heater main body based on the settings from the remote controller, the control unit includes a set value storage unit that stores normal water filling conditions. Since it is equipped with a bath temperature set value storage means for storing the water filling condition during bathing, even if the water filling setting is changed during bathing, the normal water filling setting condition is stored, so next time water filling is performed. When performing, it is possible to automatically return to the normal water filling condition.

According to a second aspect, the control unit according to the first aspect is
The hot water supply device further comprises bathtub-related operation detection means for detecting bathtub-related operation during supply of hot water or water to the bathtub or standby for supply, and the set value from the bathing set value storage means during the bathtub-related operation. To control the water heater and to read the set value from the set value storage means when the bathtub-related operation is not in progress, so that the water heater is controlled, even if the water filling setting is changed during bathing, the water filling setting is performed during bathing. Even if you change
Since the normal filling condition is stored, it is possible to automatically return to the normal filling condition when filling the next time.

According to the third aspect of the present invention, the bathtub-related operation according to the second aspect is an automatic warming operation for keeping the hot water temperature of the bathtub constant, so that even if the water filling setting is changed during the automatic warming operation,
Since the normal water filling setting condition is stored, the next water filling can be automatically performed under the normal water filling condition.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram of a gas water heater according to an embodiment of the present invention. The water heater above
As shown in the drawing, the water heater main body 1, from the water source to the water heater main body 1
And a hot water supply pipe 5 for supplying the water heated in the heat exchanger 7 to the hot water tap 11 by the burner 13 burning in the water heater main body 1. . Further, in the hot water supply pipe 3, a water inlet temperature sensor 16 that detects the temperature Tc of the water from the water supply source, a water amount sensor 17 that detects the water amount Q, and downstream of the mixing valve 19 of the hot water supply pipe 5, A mixed hot water temperature detection sensor 18 for detecting the mixed hot water temperature Tm after being mixed is provided. Further, the gas water heater is provided with a water filling pipe 4 connected to the reheating pipe 2 from the water heating pipe 5 in the water heater main body 1 downstream of the mixing valve 19, and the water filling pipe 4 has a water filling pipe. A bath water amount sensor 8 for detecting the flow rate of water flowing through the hot spring 4 and a hot water solenoid valve 6 for starting / stopping the supply of hot water are provided. The reheating pipe 2 has an end connected to the bathtub 12, and a circulation pump P for circulating the hot water in the bathtub 12, a water level sensor 10 for detecting the water level of the bathtub 12, and a hot water temperature in the bathtub 12 are detected in the middle. The bath temperature sensor 21 is provided.

FIG. 2 is a control block diagram of a gas water heater according to an embodiment of the present invention. Various sensors 8, 10, 1
6, 17, 18, 20, 21 and proportional valve 14, solenoid valve 1
5, the fan 9, the mixing valve 19, the hot water solenoid valve 6, the circulation pump P, etc. are connected to the control unit 22 and send a predetermined detection value to the control unit 22 or control by an instruction from the control unit 22. It is possible to receive and receive. In addition, the control section 22 can be operated remotely, and predetermined data can be stored and set in the storage section 32 connected to the control section 22.
A remote controller 23 is connected to the control unit 22.

FIG. 3 is a plan view of a remote controller showing an embodiment. On the remote controller 23, for example, a voice utterance unit 25 for guiding the operation method and operation confirmation by voice, a display unit 24 for displaying the hot water supply set temperature Ts, the bath set temperature Tfs, the bath set hot water amount Qfs, and the like. Further, an operation switch 26, a hot water filling switch 27 that is turned on when the hot water is poured into the bathtub, and a reheating switch 28 that is turned on when the hot water in the bathtub 12 is heated are provided. Further, the switch 2 for setting the set temperature Ts of the hot water supplied from the hot water tap 11.
9 and bath set temperature Tfs of hot water filled in the bathtub 12
Switch 30 for setting the amount of hot water and bath setting hot water amount Qfs
A switch 31 for setting is set.

FIG. 4 is a flow chart for changing the bath water temperature according to the present invention. When the bath temperature setting switch 30 is pressed in step S1, it is determined in step S2 whether the warming operation is in progress, and if it is in the warming operation, step S
The bath temperature setting mode for bathing in 3 is entered. Display 24
Indicates the bath temperature during bathing (step S3).
If the warming operation is not being performed in step S2, step S8
The normal bath temperature setting mode is set, and the normal bath temperature is displayed on the display unit 24 (step S9). In the bath temperature setting mode during bathing, it is determined in step S5 whether or not the warming operation is completed. When the mode is finished, the mode returns to the normal bath temperature setting mode in step S6, and the normal bath temperature is displayed on the display unit 24. (Step S7).

FIG. 5 is a flow chart for changing the bath hot water supply amount according to the present invention. When the bath hot water amount setting switch 31 is pressed in step S10, it is determined in step S11 whether or not the warming operation is being performed.
The mode for setting the amount of hot water during bathing in 12 is entered. Display unit 2
The amount of hot water during bathing is displayed in 4 (step S1)
3). If the warming operation is not being performed in step S11, the normal bath hot water amount mode in step S17 is set, and the display unit 2
The normal bath water volume is displayed in 4 (step S1).
8). The mode for setting the amount of bath water during bathing is step S1.
In step 4, it is determined whether or not the warming operation has ended, and when it ends, the process returns to the normal bath hot water amount setting mode in step S15, and the normal bath hot water amount is displayed on the display unit 24 (step S1).
6). As a result, the user automatically returns to the bath setting even if the bath setting is changed during bathing, so that the user can complete the filling without making a mistake in the next setting.

[Brief description of drawings]

FIG. 1 is a block diagram of a gas water heater according to an embodiment of the present invention.

FIG. 2 is a control block diagram showing an embodiment of the present invention.

FIG. 3 is a plan view of a remote controller showing an embodiment of the present invention.

FIG. 4 is a flowchart for changing the bath hot water temperature according to the embodiment of the present invention.

FIG. 5 is a flowchart for changing the amount of hot water supplied to the bath in one embodiment of the present invention.

[Explanation of symbols]

1 ... Main body of water heater 2 ... Additional piping 3 ... Water supply pipe 4 ... Hot water pipe 5 ... Hot water supply pipe 6 ... Hot water solenoid valve 7 ... Heat exchanger 8 ... Bath water amount sensor 9 ... fan 10 ... Water level sensor 11 ... Hot water tap 12 ... tub 13 ... Burner 14 ... Proportional valve 15 ... Solenoid valve 16 ... Inlet temperature sensor 17 ... Water sensor 18 ... Mixed hot water temperature detection sensor 19 ... Mixing valve 20 ... Heat exchanger outlet temperature sensor 21 ... Bath temperature sensor 22 ... Control unit 23 ... Remote control 24 ... Display 25 ... Voice generating unit 26 ... Operation switch 27 ... Hot water switch 28 ... additional switch 29 ... Hot water temperature setting switch 30 ... Bath temperature setting switch 31 ... Bath hot water amount setting switch 32 ... Storage unit P ... Pump

Claims (3)

[Claims] 1. A water heater main body capable of filling a bathtub with hot water,
In a hot water supply device comprising one or a plurality of remote controls for setting the bath temperature, the amount of hot water, etc., and a control section for controlling the main body of the water heater based on the settings from the remote control,
The hot water supply apparatus is characterized in that the control unit includes a set value storage means for storing normal water filling conditions and a bathing set value storage means for storing water filling conditions during bathing. 2. The control unit according to claim 1, further comprising bathtub-related operation detection means for detecting a bathtub-related operation in which the hot water supply device is supplying or is waiting to supply hot water or water to the bathtub. A hot water heater which reads a set value from the bathing set value storage means during operation to control the hot water supply device, and reads a set value from the set value storage means to control the hot water supply device when not in a bathtub related operation. Machine control device. 3. The hot water supply apparatus according to claim 2, wherein the bathtub-related operation is an automatic warming operation for keeping the hot water temperature of the bathtub constant.