JPH0599433A - Water heater operation device - Google Patents

Abstract

(57) [Summary] [Purpose] By displaying the set values of different operating conditions on the liquid crystal display with a common display location, the display space can be made compact and the characters can be easily read, and in use. By distinguishing the condition for safety and the condition for repeated setting and storing them in the storage device, the operating condition setting is facilitated and the usability is improved. [Configuration] Different operating conditions (I) depending on the operation switch 24,
When (II) is set, the operating condition (I) is displayed in the display zones L and R, the operating condition (II) is displayed in the display zone L, and the display zone L is used as a common display location. The set value for safety in use is erased every use, and the set value repeatedly set is automatically stored in the storage unit 15. With regard to set values for safety in use, safe values are stored in the storage device 15 in advance, the liquid crystal display 25 is displayed for each use, and set values to be repeatedly set are displayed on the liquid crystal display 25 at the next setting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operating device for setting operating conditions of a water heater and controlling its operation.

[0002]

2. Description of the Related Art Conventionally, an operating device for a water heater of this type is a controller that receives a signal from a remote controller 2 for operating a water heater 1 by operating the water heater 1 remotely as shown in FIG. The operation was controlled by 3. When the operating conditions such as the operating switch A provided on the remote controller 2 are pressed to input the operating conditions, the water supplied to the water heater 1 passes through the water amount sensor 5 and the heat exchanger 6, and is heated by the burner 7 to the set temperature of 42 ° C. Fill the bathtub 8 with hot water. At this time, as shown in FIG. 5, the liquid crystal display 9 of the remote controller 2 has a set temperature of 42 ° C. and a set boiling amount of 1
Display 80l. When the water amount sensor 5 counts the amount of water and reaches 180 l, the supply of hot water to the bath 8 is stopped.
Next, when the hot water in the bathtub 8 becomes dull as time passes, there is a reheating function. At this time, the operation switch B or the like is pressed to set the amount of hot water to be added to the bathtub 8. Then, the set amount of hot water of 20 l is supplied, the temperature of the warm water in the bathtub 8 is raised, and the liquid crystal display 9 turns off the display in the display zone R,
In another display zone L, "20 l of hot water" is displayed. In these hot water filling and reheating operations, the set values are erased each time each operation ends, and the settings are input for each operation.

[0003]

However, in the above-mentioned structure, the liquid crystal display 9 has different conditions for the filling and reheating operation.
Different display zones L and R are displayed separately, and if the display space is small, the outline of the character becomes unclear and it is difficult to read. In addition, when operating conditions are set for each operation and the same operating conditions are repeated every day, it feels irrational, and there has been a strong demand for improvement in ease of operation.

Therefore, a first object of the present invention is to make it easy to read characters while keeping the liquid crystal display compact, and to improve the usability by improving the setting operation of operating conditions. The purpose is 2.

[0005]

In order to achieve the above-mentioned first object, the first means of the present invention is a plurality of operation switches for setting and inputting operating conditions of a water heater and a water heater. It has a liquid crystal display that displays operating conditions, and a display indicator that receives setting input signals for different operating conditions from different operation switches and displays operating conditions at the time of reception, including common display points on the liquid crystal display. It is a thing.

In order to achieve the above-mentioned second object, the second means of the present invention comprises a plurality of operation switches for setting and inputting the operating conditions of the water heater and a liquid crystal display for displaying the operating conditions of the water heater. A display unit, a non-volatile storage device that stores in advance the safe operating conditions A1 of the operation switch A, and the operating condition B1 previously set by the operation switch B, and the operation start of the operation switch. Receive the input signal,
Stored data A of the storage device corresponding to the operation switches A and B
1, B1 is displayed, and a controller for automatically operating the water heater under the operating conditions A1 and B1 of the displayed value when the display value change setting input is not received.

[0007]

By means of the above-mentioned first means, the water heater operating device according to the present invention makes effective use of the display space of the liquid crystal display when the operating switch sets and inputs different operating conditions according to the function of the water heater. The characters of the driving conditions are displayed in a large size so that they are easy to read, and the same display location is commonly used for different displays. And a compact display space can be maintained.

Further, by the above-mentioned second means, in the water heater operating device according to the present invention, when the operation switch A sends an operation start input signal to the controller, the controller instructs the memory device to operate the memory device. The liquid crystal display displays the safe operating condition A1 stored in advance. Further, when the operation switch B sends an operation start input signal to the controller, the controller instructs the memory device, and the operation switch B causes the liquid crystal display device to store and store the operating condition B1 set in the previous operation. indicate. Then, when the same operating condition as the displayed value is repeated, it is possible to operate without inputting a reset signal, and usability can be improved.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a water heater operating device according to the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention, in which parts given the same reference numerals as those of the conventional example have the same name and the same function, and different parts will be explained. The remote controller 12 for remotely operating the water heater 11 is a water heater. A liquid crystal display 25 for displaying the operating conditions of No. 11 and a plurality of operation switches 24 for setting and input are provided. The controller 13 of the water heater 11 sends and receives signals to and from the remote controller 12,
It has a display indicator 14 that receives a setting input signal of the operation switch 24 and outputs a display signal to the liquid crystal display 25. Further, when the operating condition (I) of supplying hot water from the water heater 11 to the bathtub 8 is satisfied, the controller 13 stores and saves the storage data B1 of the set value set and input by the operation switch 16 in the previous operation, and the reheating operation. When operating condition (II) for supplying hot water is set by inputting an operation start input signal with the operating switch 17, the operating condition A1 which is safe for use is stored in advance, so-called EEPROM (non-volatile memory). The storage device 15 having a non-volatile property is also provided.

FIG. 2 is an enlarged view of the remote controller 12. The structure of the operation switches A and B will be described below.
Reference numeral 17 inputs the operation start and operation up corresponding to the operating conditions (I) and (II), respectively, and outputs the on / off signal for selecting the application and the operation. The switches 18 and 19 select the setting of the hot water temperature and hot water amount to be supplied to the bathtub 8, and the operating conditions (I) and (I
Commonly used for setting I). Switches 20, 21
Enter the numerical value as a specific level of hot water temperature and hot water amount,
The switch 20 lowers the display value and the switch 21 raises the display value. The switches 20 and 21 are also commonly used to set the operating conditions (I) and (II). L
The ED lamps 22 and 23 correspond to the operation switches 16 and 17, respectively, and light up from the start of setting the operating conditions (I) and (II) to the input of the signal for the operation off, and confirm that each operating condition is being set. Display and inform. The liquid crystal display 25 is designed to have a common display zone so as to make the space as small as possible while making the display contents easy to read in order to design the remote controller 12 compact. In this example, the displayed contents are classified into the amount of hot water supplied to the bathtub 8 and the hot water temperature. Then, the hot water temperature is displayed in the display zone R, the hot water amount is displayed in the display zone L, and the set value is effectively displayed in a large space in a large space with the display zone L being a common display location, so that the characters can be easily read.

Based on the above configuration, next, the operating condition (I)
The setting method of will be described. When the operation switch 16 is turned on, the LED lamp 22 is turned on, and the display indicator 14 which has received the operation start signal as the ON signal of the operation switch 16 causes the liquid crystal display 25 to display the previous set value stored in the storage device 15. Output the display signal. Then, the liquid crystal display 25 displays the previous operating condition B1, and when the setting value need not be changed, the operation switch 16 is turned on again,
The controller 13 immediately starts execution of the operating condition B1. Also,
When changing the hot water amount of the set value, the switch 19 is turned on and then the switch 20 or 21 is turned on, and when the change of the set value is completed, the operation switch 16 may be turned on again. When initially set as a trial run in which a hot water supply device is installed, the storage device 15 stores and saves the hot water temperature and the hot water amount, which are the minimum values for filling water. This stored data is intended for the bathtubs 8 of various shapes, and the bathtub 8 having the smallest possible amount of water filling can be filled with the least amount of hot water and at a low temperature, for example, 1.
Set a hot water volume of 001 and a hot water temperature of 38 ° C. In this way, no matter which bathtub 8 is filled with the set value of the initially stored data, water will never overflow and the hot water will be wasted.

When this data is displayed on the liquid crystal display 25, the switches 18, 19, 20, 21 are operated to set and input an appropriate operating condition (I). Then, the storage device 15 changes the initial data by the operation input up signal of the operation switch 16, and stores and saves the set value of the setting input. At the same time, the controller 13 starts the operation of the water heater 11 to start filling the bathtub 8 with water and integrates the detection signals of the water amount sensor 5. When the accumulated amount reaches the set value, the operation of the water heater 11 is stopped and the LED
The lamp 22 is turned off and the hot water supply is completed. When the operation switch 16 is turned on and the operation start signal is input to supply hot water on the next day or the like, the same set value is displayed on the liquid crystal display 25. The filling condition of the bath water is generally changed depending on the season and depends on the level of heat radiation loss from the bath 8 and the relationship between the air temperature and the bath temperature. However, in the same season at the same temperature, the water filling condition is almost constant every day, and the simple operation of turning the operation switch 16 on again is sufficient, which improves usability.

Next, a method of setting the operating condition (II) will be described. This operation is mainly performed when the amount of hot water decreases during bathing and the hot water temperature drops, and the amount of hot water to be added is determined and input according to the user's judgment. The hot water temperature at this time is a so-called high-temperature hot water type in which it is fixed at a predetermined high temperature (for example, 80 ° C.). When the operation switch 17 is turned on and the operation start signal is input, the amount of the amount of hot water to be added turns on the LED lamp 23, and the display indicator 14 that has received the operation start signal displays the safe operating condition A1 stored in the storage device 15 in advance. A display signal is output to the liquid crystal display 25. Then, the display indicator 14 displays the operating condition A1, but this amount of hot water is as small as 20 l, and it is executed so that the residual water in the bathtub 8 and the hot water temperature after stirring are too high, so that there is no danger in taking a bath. ing. If it is determined that the amount of hot water is insufficient, the switch 19 is turned on and then the switch 21 is operated to set the required amount of hot water, and when the switch 17 is turned on again, the set amount of hot water is added to the bathtub 8 and agitated to obtain the hot water temperature. You can raise it and fire it.

At this time, the controller 13 may have a small amount of supplemental hot water next time, and the amount of supplemental hot water is different from the amount of filling water and has a strong property of changing with each use, and the user who is not familiar with the operation of the equipment. Don't accidentally supply a large amount of hot water from the last time. That is, the amount of additional hot water is not automatically stored in the storage device 15 like the amount of filling water, and the minimum and safe amount of hot water 20 l is first displayed every use. When the reheating is performed and the water amount sensor 5 integrates the predetermined amount of hot water, the LED lamp 2
3 is turned off and the hot water operation ends. The liquid crystal display 25 displays the amount of additional hot water in the same display zone L as the amount of hot water filling, as shown in FIG. The hot water temperature is not displayed because it is a fixed temperature, but it may be displayed in the display zone R to call attention to the high temperature, if necessary.

Although not shown, as another embodiment,
When a reheating heater that circulates and heats the bath water through the bathtub and the circulation path is provided as the reheating operation device, an automatic warming operation for constantly maintaining the bath water at a preset temperature can be added. As the operating condition, keep the heat retention temperature at a safe temperature for use,
It can be set to the previous setting or the display can be automatically displayed.

[0016]

As described above, according to the first aspect of the present invention, the hot water heater operating device effectively uses the display space of the liquid crystal display device for the set values of the operating conditions in which the display indicators differ. When the setting input signal is received, the common display portion is displayed, and the display space of the liquid crystal display is suppressed to make the character compact and easy to read.

According to a second aspect of the present invention, the storage device stores the initial stored value for the one which is expected to be safe in use due to the nature of the operating conditions, and the previous set value for the repeated operation, and the liquid crystal is stored when the operating conditions are set. It can be displayed on the display unit to facilitate the setting operation and improve usability.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of an operating device for a water heater according to the present invention.

FIG. 2 is an enlarged front view of the remote controller.

FIG. 3 is an enlarged front view showing a change in display state of the remote controller.

FIG. 4 is a block diagram of an operating device in a conventional water heater.

FIG. 5 is an enlarged front view of the remote controller.

[Explanation of symbols]

 11 water heater 13 controller 14 display indicator 15 memory device 24 operation switch 25 liquid crystal display device

Claims (2)

[Claims] 1. A plurality of operation switches for setting and inputting operating conditions of a water heater, a liquid crystal display for displaying operating conditions of a water heater, and a setting input signal for different operating conditions by different operating switches, upon reception. Water heater operation device having a display indicator for indicating the operating conditions of the display including common display points on the liquid crystal display. 2. A plurality of operation switches for setting and inputting operating conditions of the water heater, a liquid crystal display for displaying operating conditions of the water heater, and operating conditions A1 which are safe for use of the operating switch A are stored in advance, and Operating condition B previously set with operation switch B
A non-volatile memory for storing 1 and an operation start input signal of the operation switch are received, and the operation switch A,
It has a controller for instructing to display the stored data A1 and B1 of the storage device corresponding to B and automatically operating the water heater under the operating conditions A1 and B1 of the display value when the display value change setting input is not received. Operating device for water heater.