JP2000146289A - External input unit of hot water supply apparatus for bath - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make conspicuous the indicating part by enlarging individual indications and to decrease the number of types of external input unit. SOLUTION: An external input unit body 24 comprises indicating sections 35-42 for respective operating modes corresponding to switches 25-32 inputting the operating mode, and an indicating section 34 for other information. A plurality of operating modes corresponding to respective switches, the number of apparatus or the kind of used gas, etc., are indicated at a part of the indicating section 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an external input device for a bath water heater capable of hot water supply and additional heating of a bath.

[0002]

2. Description of the Related Art A conventional bath water heater has a configuration as shown in FIG. In the figure, water passes through a water flow sensor 1 and a water temperature sensor 2 from a water inlet, absorbs heat in a hot water supply heat exchanger 3, passes through a hot water supply sensor 4, a hot water supply control valve 5, and is discharged from a hot water outlet. Gas is supplied from the gas inlet to the hot water supply solenoid valve 6,
The gas passes through a hot water supply proportional valve 7 and is burned by a hot water supply burner 8.

The bath water is supplied by a circulation pump 22 to a bath connection adapter 19, a return passage 13, a water level sensor 14, a switching three-way valve 15, a bath sensor 9, a water flow switch 10, a bath heat exchanger 11, an outgoing passage 12, and a bath connection. When the water circulates with the adapter 19 and the temperature of the hot water detected by the bath sensor 9 decreases, the gas passes through the bath source solenoid valve 16 and the bath proportional valve 17 of the gas, burns in the bath burner 18, and heats in the bath heat exchanger 11. To reheat the bath water.

[0004] When the hot water is supplied to the bathtub, the hot water absorbed by the hot water supply heat exchanger 3 passes through the hot water supply sensor 4, the hot water supply amount control valve 5, the hot water supply electromagnetic valve 20, the cutoff valve 21, the access passage 12 and the bath. It passes through the return passage 13 and enters the bathtub from the bath connection adapter 19.

[0005] These operation modes such as hot water supply, reheating, hot water filling, etc. are controlled by inputting the operation mode settings and controlling the operation mode based on the information of the external input device 50 and the external input device 50 capable of displaying the operation state. This is performed by means 55. As shown in FIG. 4, the external input device 50 includes a switch 51 for inputting an operation mode such as "bath automatic" for filling with hot water, and "reheating" for reheating, a set temperature and a set amount of each operation mode. Switch 52 for setting etc.
And a display unit 53 for displaying an operation state of each operation mode.
It is composed of

[0006]

However, in the conventional external input device of a bath water heater, the external input device main body 5 is used.
Since all the various displays are displayed on the display unit 53 of the “0”, each display becomes smaller. In particular, in the bathroom, the display unit 53 becomes cloudy or there is a person who takes a bath with glasses removed. There was a problem that it was difficult to see. Further, since the product number display 54 is printed on the external input device main body 50 for each model, there is a problem that the types of the external input device main bodies increase.

[0007]

In order to solve the above-mentioned problems, an external input device for a bath water heater according to the present invention comprises a plurality of switches and a display portion capable of displaying a plurality of contents, and a display corresponding to each switch. A plurality of operation modes are displayed on a part of the unit, each operation mode can be selected by pressing a switch, and the model number is displayed on the display unit.

[0008] According to the above invention, only the necessary display is displayed on the display unit, so that each display becomes large. Even if there is a person who takes a bath with the display unit in the bathroom or with glasses removed, the external input device can be used. The display can be easily viewed. Further, since the model number is displayed on the external input device main body for each model, the type of the external input device main body can be reduced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is a hot water supply heat exchanger for heating supply water to hot water by a burner, a water temperature sensor provided in a water supply passage for detecting supply water temperature, and a water amount for detecting supply water flow rate. A sensor, a hot water supply sensor provided in the hot water path, for detecting hot water temperature, and a hot water supply amount control valve for controlling the flow rate of hot water, a bath heat exchanger for heating circulating water to hot water by a burner, and a bath heat exchanger from the bathtub A return passage through which circulating water flows, a circulation pump that circulates bath water, a bath sensor that detects the temperature of the bath water, a three-way valve that switches between hot water supply and a bath passage, and a hot water supply outlet and a return passage are connected. A hot water supply solenoid valve provided in each of the passages, an outgoing passage provided downstream from the bath heat exchanger, a plurality of switches and a display unit capable of displaying a plurality of contents, and a display unit corresponding to each switch of Parts to display a plurality of operation modes, by pressing the switch can select each operation mode, in which so as to display the model part number on the display unit.

Since only the necessary display is displayed on the display unit, each display becomes large, so that the display unit can be easily seen even if the display unit is clouded in a bathroom or a person who takes a bath with glasses removed. Further, since the model number is displayed on the display unit for each model, the number of types can be reduced.

According to a second aspect of the present invention, a plurality of switches and a display unit capable of displaying a plurality of contents are provided, and a plurality of operation modes are displayed on a part of the display unit corresponding to each switch. By pressing the button, each operation mode can be selected, and the type of gas used is displayed on the display section.

Since the gas type can be confirmed on the display unit without having to check the gas type display on the apparatus main body, the convenience can be improved.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 shows a first embodiment of the present invention. In the figure, water passes through a water flow sensor 1 and a water temperature sensor 2 from a water inlet, absorbs heat in a hot water supply heat exchanger 3, passes through a hot water supply sensor 4, a hot water supply control valve 5, and is discharged from a hot water outlet. The gas passes through a hot water supply source electromagnetic valve 6 and a gas hot water supply proportional valve 7 from a gas inlet, and is burned by a hot water supply burner 8.

Bath water is supplied by a circulation pump 22 to a bath connection adapter 19, a return passage 13, a water level sensor 14, a switching three-way valve 15, a bath sensor 9, a water flow switch 10, a bath heat exchanger 11, an outgoing passage 12, and a bath connection. When the water circulates with the adapter 19 and the temperature of the hot water detected by the bath sensor 9 decreases, the gas passes through the bath source solenoid valve 16 and the bath proportional valve 17 of the gas, burns in the bath burner 18, and heats in the bath heat exchanger 11. To reheat the bathtub water to the bath set temperature of the external input device 23.

As for the hot water in the bathtub, the hot water absorbed by the hot water supply heat exchanger 3 passes through the hot water supply sensor 4, the hot water supply amount control valve 5, the hot water supply electromagnetic valve 20, the cutoff valve 21, the outgoing passage 12, and the bath water. It passes through the return passage 13 and enters the bathtub from the bath connection adapter 19.

The operation modes, such as hot water supply, reheating, and hot water filling, are set based on the information of the external input device main body 24 and the external input device main body 24 which can input the setting of the operation mode and display the operation state. Control means 2 for controlling
3 is performed.

As shown in FIG. 2, the external input device main body 24 has switches 25 to 32 for inputting operation modes such as "bath automatic" for filling with hot water and "reheating" for reheating.
And display units 35 to 42 for displaying the respective operation modes corresponding to the switches 25 to 32 for inputting the operation modes, and a display unit 33 including a display unit 34 for displaying other information. In accordance with a control signal from the control means 23, a product number is displayed on the display unit 34 for each model. In addition, the type of gas used is displayed on the display unit 34 by a control signal from the control unit 23.

According to the above invention, since only the necessary display is displayed on the display unit of the external input device main body, each display is enlarged, and there is a person who takes a bath by removing the display unit or removing his glasses in the bathroom. Can also make the display part easy to see. To display the model number on the external input device body for each model,
The type of the external input device main body can be reduced. Further, since the gas type can be confirmed on the display unit without having to check the gas type display of the device main body, convenience can be improved.

[0020]

As described above, the bath water heater of the present invention
Since only the necessary displays are displayed on the display unit of the external input device, each display is enlarged, making it easy to see the display unit.External input is used to display the model number and gas type on the display unit for each model. The number of types of the apparatus main body can be reduced, and convenience can be improved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an external input device of a bath water heater according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of the apparatus.

FIG. 3 is a configuration diagram of an external input device of a conventional bath water heater.

FIG. 4 is an external view of the apparatus.

[Explanation of symbols]

23 control means 24 external input device 25, 26, 27, 28, 29, 30, 31, 32 switch 33, 34, 35, 36, 37, 38, 39, 40, 4
1, 42, 43, 44, 45, 46, 47, 48, 49
Display

Claims (2)

[Claims] 1. A hot water supply heat exchanger for heating water supply, a water temperature sensor provided in a water supply passage for detecting a supply water temperature and a water amount sensor for detecting supply water flow rate, and a hot water supply provided in a tap water supply passage for detecting hot water temperature A hot water supply control valve for controlling a sensor and a tap water flow rate, a bath heat exchanger for heating the circulating water, a return passage through which the circulating water flows from the bathtub to the bath heat exchanger, a circulation pump for circulating the bathtub water, and a bathtub A bath sensor that detects the temperature of hot water, a three-way valve that switches between hot water supply and a bath passage,
A hot water supply solenoid valve provided in a passage connecting the hot water supply passage and the return passage, an outgoing passage provided downstream from the bath heat exchanger, a plurality of switches and a plurality of display portions, An external input device main body that displays a plurality of operation modes on a part of the display unit corresponding to the switch, can select each operation mode by pressing the switch, and displays a model number on the display unit. External input device for bath water heater. 2. The external input device for a bath water heater according to claim 1, wherein the external input device main body displays the type of gas used on a display unit.