JPH09305201A - Temperature setting method - Google Patents

Abstract

(57) [PROBLEMS] To provide a temperature setting method in which a set temperature does not rise beyond a predetermined temperature even if a failure occurs in which an ON state of a switch continues. SOLUTION: The temperature setting method is such that, until the set temperature reaches a predetermined temperature, the set temperature is increased when the switch is pressed to change from OFF to ON, and the ON state is continued by pressing and holding the switch. In addition to continuously increasing the set temperature, when the set temperature is the predetermined temperature, the set temperature is increased beyond the predetermined temperature when it is changed from ON to OFF by the release operation after pushing the switch. Configure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature setting method for hot water supply temperature of a water heater.

[0002]

2. Description of the Related Art According to a method disclosed in Japanese Patent Publication No. 60601/1993 as a method for setting a hot water supply temperature of a conventional hot water supply device, for example, when a hot water supply temperature up switch is operated to raise the hot water supply temperature. In addition, the set temperature is raised in the entire range of the hot water supply temperature that can be set when the switch is pushed to change from OFF to ON. When the set temperature is within the predetermined range, the switch has a repeat function of continuously increasing the set temperature by continuously pressing the switch, and when the set temperature is outside the predetermined range (high temperature range), the switch is operated. OFF by pressing
Every time it changes from ON to ON, the set temperature is increased stepwise.

Therefore, for example, the predetermined range is from 37 ° C. to 50
If the temperature is set to ℃, the set temperature will gradually rise until the set temperature reaches 50 ℃ by pressing and holding the switch.
Since the set temperature does not rise even if the switch is continuously pressed after reaching, it is possible to prevent undesired hot water from being supplied by unintentional switch operation.

[0004]

However, in this method, when the set temperature is 50 ° C., for example, when the switch is turned from OFF to ON due to a failure such as a short circuit or sticking of the switch, the set temperature is set to 50. Rises above ℃,
There was a possibility that hot water set to high temperature would be supplied.

In view of the above-mentioned inconvenience, it is an object of the present invention to provide a temperature setting method in which the set temperature does not rise to a high temperature exceeding a predetermined temperature even when the switch is turned from the OFF state to the ON state.

[0006]

In order to achieve the above-mentioned object, the temperature setting method of the present invention is such that, until the set temperature reaches a predetermined temperature, the set temperature is changed when the switch is pushed to change from OFF to ON. And the set temperature is continuously increased when the ON state is continued by pressing and holding the switch, and when the set temperature is the predetermined temperature, it is changed from ON to OFF by the release operation after the switch is pressed. It is characterized in that the set temperature rises above the predetermined temperature when the above operation is performed.

According to the present invention, the set temperature rises each time the switch is pressed until the set temperature reaches the predetermined temperature, and the set temperature sequentially rises while the switch is continuously pressed and operated. to continue. However, after the set temperature reaches the predetermined temperature by continuously pressing the switch, the set temperature does not rise above the predetermined temperature even if the switch is continuously pressed. Therefore, hot water that exceeds a predetermined temperature will not be supplied by inadvertently pressing and holding the switch.

Further, according to the present invention, when the set temperature is the predetermined temperature, in order to raise the set temperature beyond the predetermined temperature, the switch is turned on and then the switch is turned on by releasing the switch.
Change to FF is required. Therefore, when the set temperature is the predetermined temperature, even if the switch is turned from OFF to ON due to a failure such as a short circuit or sticking of the switch, the set temperature does not rise beyond the predetermined temperature. There is no danger of hot water being supplied.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a system configuration diagram of an embodiment of the present invention,
FIG. 2 is an explanatory diagram of the operation of the embodiment shown in FIG.

1 and 2, reference numeral 1 is a remote controller (bath remote controller) for a water heater (not shown), 2 is a hot water temperature adjusting switch for the remote controller 1, and a hot water temperature raising switch 3 for raising the hot water temperature of the water heater. And a hot water supply temperature down switch 4 for lowering the hot water supply temperature.
The hot water supply temperature up switch 3 and the hot water supply temperature down switch 4 both have their outputs changed from OFF to ON by a pressing operation, and change their outputs from ON to OFF by a releasing operation.

Reference numeral 5 denotes a temperature setting section composed of a microcomputer, which controls the hot water supply temperature of a water heater (not shown) to 37 ° C.
It can be set to 48 ° C, 50 ° C, 60 ° C, and 75 ° C. That is, the temperature setting unit 5 gradually sets the set temperature in the range of 37 ° C. to 48 ° C. by 1 ° C. each time the output is changed from OFF to ON by pressing the hot water supply temperature up switch 3 once. To raise. When the set temperature is 48 ° C, pressing the hot water supply temperature up switch 3 once turns off the output.
To ON, the temperature setting unit 5 raises the set temperature by 2 ° C. and changes it to 50 ° C. In the range of 37 ° C. to 50 ° C., when the hot water supply temperature up switch 3 is continuously pressed and kept in the ON state, the temperature setting unit 5 continuously raises the set temperature until it reaches 50 ° C. When the set temperature is 50 ° C, the output is turned on by pressing the hot water supply temperature up switch 3 and then the output is turned on by turning it off.
When changing to FF, the temperature setting unit 5 sets the set temperature to 60.
Change to ° C. When the set temperature is 60 ℃, press the hot water supply temperature up switch 3 to turn the output from OFF to ON.
When it changes to, change the set temperature to 75 ° C.

That is, the temperature setting section 5 sets the set temperature to 5
Only when it is 0 ° C, the set temperature is raised in response to the output of the hot water supply temperature up switch 3 changing from the ON state to the OFF state, and when the set temperature is a temperature other than 50 ° C, the OFF to ON state is set. The set temperature is raised in response to the change to.

On the other hand, when the hot water supply temperature down switch 4 is pressed to change the output from OFF to ON, the temperature setting unit 5 lowers the set temperature. That is, the set temperature is 7
When the hot water supply temperature down switch 4 is pressed once at 5, 60, and 50 ° C., the output changes from OFF to ON, and the set temperatures decrease to 60 ° C., 50 ° C., and 48 ° C., respectively. When the set temperature is in the range of 37 ° C to 48 ° C, the output changes from OFF to ON each time the hot water supply temperature down switch 4 is pressed once, and the set temperature gradually decreases by 1 ° C. In the range of 37 ° C to 50 ° C, when the hot water supply temperature down switch 4 is continuously pressed to keep the ON state, the set temperature is continuously decreased until it becomes 37 ° C. The temperature setting unit 5 may be set to 49 ° C between the set temperatures of 48 ° C and 50 ° C.

Reference numeral 6 designates the set temperature of the hot water supply temperature of a hot water supply device (not shown), the set temperature of the hot water supply temperature adjusting switch 2 and the temperature setting section 5 of the remote controller 1, and the hot water supply temperature adjusting switch of the other remote controller 8 (for example, the main remote controller). 9 is a priority switch for switching between 9 and the temperature set by the temperature setting unit 10. The output of the priority switch 6 changes from OFF to ON when pressed, and the output turns ON when released.
Changes from OFF to OFF.

Reference numeral 7 denotes a priority setting unit, which operates the priority switch 6 to turn on the output and then release it to release the set hot water supply temperature every time the output changes from ON to OFF. The temperature is set by switching between the temperature set by and the temperature set by another remote controller 8. That is,
For example, when the hot water supply temperature is set to the set temperature by the remote controller 1, when the temperature is changed to the set temperature by the other remote controller 8, the priority switch 6 is pressed (changed from OFF to ON) to set the priority. The priority setting unit 7 switches the hot water supply temperature to the temperature set by another remote controller 8 when the release operation (change from ON to OFF) is performed without switching the set temperature.

Therefore, for example, the temperature set by the remote controller 1 is 40 ° C. and the temperature set by the other remote controller 8 is 60 ° C.
When the hot water supply temperature is set to the temperature set by the remote controller 1 by the priority setting unit 7, the hot water is supplied at the temperature set by the remote controller 1 of 40 ° C. At this time, a failure such as a short circuit or sticking occurs in the priority switch 6 and the output is turned from ON to ON.
Even if the state is changed, since the hot water supply temperature does not change to the set temperature by the remote controller 8 because there is no change from the ON state to the OFF state, it is possible to prevent hot water supply at an undesired high water temperature.

The hot water supply temperature adjusting switch 9 and the temperature setting unit 10 of the remote controller 8 are constructed similarly to the hot water supply temperature adjusting switch 2 and the temperature setting unit 5 of the remote controller 1, respectively.

Next, the operation of the present invention will be described with reference to FIG. For example, when the set temperature is 40 ° C, the set temperature is 50
To change the temperature to ° C, press the hot water supply temperature up switch 3. Until the set temperature reaches 50 ° C, the set temperature continues to rise by pressing the hot water supply temperature up switch 3, but after the set temperature reaches 50 ° C,
The set temperature does not rise even if the hot water supply temperature up switch 3 is continuously pressed. Therefore, the set temperature is set to 50 ° C. when the hot water supply temperature up switch 3 which has been continuously pressed is released.

Here, when the set temperature is 50 ° C., the hot water supply temperature up switch 3 is turned off due to short circuit or sticking.
Even if a failure occurs such that the temperature is turned on, the temperature setting unit 5 does not change from ON to OFF.
Does not raise the set temperature. Therefore, in this case
There is no danger of hot water exceeding the limit being supplied.

When the preset temperature is 40 ° C. and the preset temperature is changed to 60 ° C., the hot water supply temperature up switch 3 is continuously pressed to reach the preset temperature of 50 ° C., and then the switch 3 is once released. When the hot water supply temperature up switch 3 is pressed again and then released, the set temperature is changed from 50 ° C to 60 ° C.
Changed to ° C.

In the above embodiment, the predetermined temperature is set to 50 ° C., which is the maximum temperature in the normally used temperature range, and the set temperature exceeds 50 ° C. due to the operation of pressing the hot water supply temperature up switch 3 continuously or the switch 3 is turned ON. The predetermined temperature is not limited to 50 ° C., but can be changed to a desired temperature.

In the above embodiment, the set temperature is 60 ° C.
In case of, when the hot water supply temperature up switch 3 is pressed to change the output from OFF to ON, the set temperature is set to 75
Although it is shown that the temperature is changed to ℃, when the hot water supply temperature up switch 3 is pressed and released, the output is changed from ON to O
The set temperature may be changed to 75 ° C. when changing to FF.

Also, regarding the hot water supply temperature down switch 4, the set temperature does not drop below a predetermined temperature by continuously pressing the hot water supply temperature down switch 4 or from the OFF state to the ON state due to a failure of the switch 4. When the set temperature is at the predetermined temperature, the hot water supply temperature down switch 4 is released to turn it on.
The temperature setting unit 5 may be configured such that the set temperature falls below the predetermined temperature only when the temperature changes to F.

The above embodiment relates to a water heater provided with two remote controllers 1 and 8, but the remote controller is only one remote controller 1, and the remote controller 1 has a priority switch 6 and a priority setting section 7. There may be no.

[Brief description of drawings]

FIG. 1 is a system configuration diagram according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an operation of the embodiment of FIG.

[Explanation of code] 1 ... Remote control, 2 ... Hot water temperature control switch, 3 ...
Hot water supply temperature up switch, 4 ... Hot water supply temperature down switch, 5 ... Temperature setting unit, 6 ... Priority switch, 7 ... Priority setting unit, 8 ... Remote control, 9 ... Hot water supply temperature adjustment switch, 10 ... Temperature Setting section

Claims (1)

[Claims] 1. The set temperature is raised when the switch is pushed to change from OFF to ON until the set temperature reaches a predetermined temperature, and the set temperature is kept when the switch is kept pushed to keep the ON state. While continuing to raise sequentially,
A temperature setting method, wherein when the set temperature is the predetermined temperature, the set temperature is raised beyond the predetermined temperature when the switch is changed from ON to OFF by the release operation after the push operation.