JP3045044B2 - Timer operation controller for heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timer operation control device for a heater having a timer operation function.

[0002]

2. Description of the Related Art FIG. 6 shows an example of an operation panel of a conventional heater disclosed in Japanese Patent Application Laid-Open No. 6-347101. In the figure, 1 is an operation switch, 2 is a timer switch for switching to a timer operation for automatically starting operation and heating when a preset timer time comes,
3, 4 are plus and minus keys for time setting, 5,
6 is an up key and a down key for temperature setting, 7 is time,
This is a digital display that displays temperature and the like.

Next, the operation will be described. First, when performing the heating operation, the operation switch 1 is pressed. Then, the heater automatically starts operating, and adjusts the combustion amount and the like so that the room temperature becomes a predetermined set temperature. Up key 5 or down key 6 for temperature setting when changing the set temperature
Operate.

Next, the operation of the timer operation will be described with reference to the flowchart of FIG. When performing the timer operation using this heater, the user presses the timer switch 2 on the operation panel. When the timer switch 2 is depressed, it is determined in step 8 whether the operation switch 1 is on, and if it is on, it is determined in step 9 whether the current time is set. If the current time has not been set, the timer operation is not accepted. In this case, the current time setting mode is set.

If the current time has been set, the process proceeds to step 10 to enter the timer time setting mode, and the display 7
To display the timer time. Then, the user presses the plus key 3 or the minus key 4 for time setting as appropriate to set the timer time. When the timer time is set in this way, the process proceeds from step 11 to step 12 to enter a timer standby state, the timer time is displayed on the display section, and the operation waits until the current time matches the timer time. .

[0006]

The conventional timer operation control device for a heater is configured as described above.
There are the following problems. That is, when the timer switch 2 is pressed to enter a timer standby state, the display unit 7 remains in a state where the timer time is displayed, and the current time cannot be confirmed. Therefore, even if the current time is out of order, it may not be noticed, and a trouble such as the heater starting to operate at an unexpected time may occur. In addition, since it cannot be used as a clock during standby of a timer that does not operate as a heater, it is inconvenient to use. It is necessary to separately provide two sets of switches for time setting, which consists of plus / minus keys, and for temperature setting, which consists of up / down keys. This increases the number of switches and increases the cost. Gives the impression that the operation unit is complicated, and is not very convenient to use.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. The setting switches are combined into a single set of switches to reduce the complexity, and the timer time is displayed only when necessary while the timer is on standby. In this case, it is an object of the present invention to obtain a timer operation control device for a heater that displays the current time and improves operability when performing the timer operation.

[0008]

SUMMARY OF THE INVENTION A timer operation control device for a heater according to the present invention includes an operation switch for starting / stopping operation, and a plus key and a minus key.
A setting switch consisting of two switches, one timer switch for switching the heater to timer operation,
Clock means for measuring the current time, a digital display unit for displaying the time and temperature, and a time setting which is initialized when the timer switch is operated or the timer time is set by the setting switch, and the count is started. A timer is provided, and when the operation switch is turned on and the operation of the heater is started, the set temperature is displayed on the display unit, and the set temperature can be changed by the plus key and the minus key. In this state, When the timer switch is turned on, a timer time setting mode is set,
Until the count of the time setting timer reaches a predetermined value, while displaying the timer time on the display unit,
The timer time can be changed by the plus key and the minus key, and when the count of the time setting timer exceeds a predetermined value, the mode automatically changes to a current time setting mode, and the current time is displayed on the display unit, The present time can be changed by the plus key and the minus key.

In the current time setting mode,
When the current time is to be changed, the state can be changed by pressing and holding the setting switch for a predetermined time.

[0010]

According to the present invention, when the operation switch is turned on, the set temperature is displayed on the display and the set temperature can be changed. In this state, the timer switch is turned on. When the timer operation is instructed, the timer time is first displayed on the display section, the timer time setting mode is entered, and the timer time can be changed.After a predetermined time has elapsed, the current time is displayed on the display section. Since the current time setting mode is set and the current time can be changed, the set temperature, the timer time, and the current time can be changed with only two switches of the plus key and the minus key.

In the current time setting mode, if the current time is to be changed, it is necessary to keep pressing the setting switch for a predetermined time. Therefore, if the user accidentally touches the setting switch, the current time is changed. There is no fear.

[0012]

[Embodiment 1] Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a control circuit diagram of a timer operation control device for a heater according to the present invention, FIG. 2 is an operation panel diagram of the heater according to the present invention, and FIG. 3 is a flowchart showing an example of program control in the timer operation control device of FIG. is there.

As shown in FIG. 2, the operation panel of the heater according to the present invention includes an operation switch 1 for starting and stopping the operation, one timer switch 2 as a timer operation instruction means, and a time switch. , Temperature, etc., a digital display unit 7 and a plus key 2 as a setting switch for changing the time, temperature, etc. displayed on the display unit 7
Two switches, 0 and a minus key 21, are provided.

As shown in FIG. 1, the control circuit is mainly composed of a microcomputer (hereinafter referred to as a microcomputer) 22. An operation switch 1, a timer switch 2, and a plus key 20 are provided on the input side of the microcomputer 22. , A minus key 21, and a thermistor 23 for detecting a room temperature. The microcomputer 22 includes an input circuit 22a for taking in the input information, a CPU 22b for performing control processing such as calculation and determination, a memory 22c for storing programs and data, and an output circuit 22d for controlling an external load. Is connected to an oscillator 24 such as a crystal oscillator,
It operates by a clock pulse generated from the oscillator 24. This clock pulse also functions as a clock means for counting the current time. The output side of the microcomputer 22 is connected to the display unit 7 and a load group 25 including a heater, a motor, and the like, which operate as a heater.

The timer means, storage means, operation control means, and time setting timer in the present invention are constituted by the microcomputer 22.

Next, the operation of the control circuit having the above configuration will be described with reference to the flowchart of FIG. First, when the operation switch 1 is turned on, the heater starts operating (step 30), and the display unit 7 displays the set temperature and the room temperature detected by the thermistor 23. At this time, the set temperature can be changed by the plus key 20 or the minus key 21, and the heater adjusts the combustion amount or the like so as to reach the set temperature.

Next, when the timer switch 2 is turned on (step 32), the time setting timer in the memory 22c of the microcomputer 22 is cleared and counting is started (step 33). The display changes to a display (step 34). When the display unit 7 displays the timer time, the timer time setting mode is set, and the timer time can be changed by pressing the plus key 20 or the minus key 21 (step 35) (step 36). In this case, the process returns to step 33, and the time setting timer is cleared again.

When the setting of the timer time is completed and the time setting timer has passed a predetermined value, that is, 5 seconds in this embodiment (step 37), the mode changes from the timer time setting mode to the current time setting mode, and the display section 7 displays the current time. The time is displayed (step 38). In this state, if the current time is out of order or is not set, the user presses the plus key 20 or the minus key 21 (step 3).
9) The current time can be changed or set. Until the current time coincides with the timer time, the determination of the coincidence between the measurement of the current time and the timer time is continued (step 43), and the apparatus enters a timer standby state. .

When the current time coincides with the timer time (step 41), the microcomputer 22 operates the load group 25,
Timer operation is started (step 42). At this time, the display on the display unit 7 changes to a temperature display necessary for the heating operation. Further, the timer time to start the operation may be an operation time before the timer time determined by the room temperature or the like before the operation is started.

As described above, during the heating operation, the display state of the display section 7 is automatically switched, such as displaying the temperature, pressing the timer switch 2 for 5 seconds, displaying the timer time for 5 seconds, and then displaying the current time. Since the contents of all operations can be changed by the same setting switch consisting of the plus key 20 and the minus key 21, only two switches for setting the temperature and time are required, and the operation panel is refreshing and the operability is good. Cost is lower. In addition, the current time is displayed while the timer is on standby, so that the watch can be used as a clock, and even if the current time is incorrect or not set, the user can easily notice and operate the setting switch to set the correct time at any time. Can be set to

Also, even if the heater is turned off and the set time has disappeared and resetting is necessary, press the timer switch 2 and set the timer time. After 5 seconds, the display changes. Since the time can be set in a series of operations of the timer set, such as setting the current time, the operability is very good.

In the current time setting mode, when the user wants to check the timer time or change the timer time, the user clears the time setting timer by pressing the timer switch 2 as shown in step 43 of FIG. Then, the timer time setting mode for 5 seconds can be set again. By doing so, the current time is normally displayed, and if necessary, the timer can be changed to the timer time display by simply pressing the timer switch 2 at any time, which is convenient.

Embodiment 2 FIG. FIG. 4 shows another embodiment in which step 38 of FIG. 3 is changed. In step 38a, it is determined whether the current time has not been set, and when the current time has been set, the light is turned on in step 38b. This is an explanation of the display mode changing means for setting the display to be blinking at 12:00 in step 38c when it is not set. By doing so, it is possible to reliably notify the user that the current time has not been set, and to set the timer time while the current time is not set and wait for the timer to wait. Can be prevented beforehand.

Embodiment 3 FIG. FIG. 5 shows another embodiment in which step 39 in FIG. 3 is changed. When the plus key 20 or the minus key 21 is continuously pressed for a predetermined time, that is, for two seconds in this embodiment, the present embodiment This is an explanation of the delay means that can change the time. In this way, while the timer is waiting, the current time setting mode is always set. However, even if the user accidentally touches the setting switch, the current time does not change immediately, so the user may unconsciously change the current time. No worries, you can use it with confidence.

[0025]

As described above, according to the present invention, when the operation switch is turned on to start the operation of the heater, the set temperature is displayed on the display section, and the set temperature is set by the plus key and the minus key. In this state, when the timer switch is turned on, a timer time setting mode is set, and until the count of the time setting timer reaches a predetermined value, a timer time is displayed on the display unit, The timer time can be changed by a plus key and a minus key, and when the count of the time setting timer exceeds a predetermined value, the mode automatically changes to a current time setting mode, the current time is displayed on the display unit, and the plus time is displayed. The current time can be changed with the key and the minus key, so setting and changing the set temperature, timer time, and current time can be performed. It can be realized by operating only two setting switches of Ruskey and minus key, and the current time is displayed while the timer is waiting, so it can be used as a clock, and even if the current time is incorrect or not set The user can easily notice and operate the setting switch to set the correct time at any time. Further, it is only necessary to turn on the timer switch to check the timer time in the middle, and the operability and usability are good, and the number of setting switches can be reduced, so that the effect that the operation panel is refreshed and the cost can be reduced can be obtained.

When the current time is changed in the current time setting mode, the setting switch is operated for a predetermined period of time to shift to a changeable state. Since there is no need to worry about changing, you can use it with confidence and improve safety.

[Brief description of the drawings]

FIG. 1 is a control circuit diagram of a timer operation control device for a heater according to one embodiment of the present invention.

FIG. 2 is an operation panel diagram of a heater according to one embodiment of the present invention.

FIG. 3 is a flowchart showing control of a heater according to one embodiment of the present invention.

FIG. 4 is a main part flowchart showing control of a heater according to another embodiment of the present invention.

FIG. 5 is a main part flowchart showing control of a heater according to still another embodiment of the present invention.

FIG. 6 is a diagram showing an example of an operation panel of a conventional heater.

FIG. 7 is a flowchart showing an example of a conventional timer operation program for a heater.

[Explanation of symbols]

2 Timer switch, 7 display, 20 plus key (setting switch), 21 minus key (setting switch), 22 microcomputer, 24 oscillator.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-266290 (JP, A) JP-A-4-47301 (JP, A) JP-A-6-347101 (JP, A) JP-A-4-347 61820 (JP, A) JP-A-2-238249 (JP, A) JP-A-62-172110 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24H 3/02 301 G04G 9/00 305

Claims (2)

(57) [Claims] An operation switch for starting and stopping operation.
Switch, plus and minus keys
Setting switch and heater switch to timer operation
One timer switch to measure the current time
Time-measuring means and digital method for displaying time and temperature
Display section and when the timer switch is operated,
Is the initial value when the timer time is set with the setting switch.
And a time setting timer to start counting.
Then, the operation switch is turned on to start the operation of the heater.
Then, the set temperature is displayed on the display section, and the
The set temperature can be changed using the plus and minus keys.
In this state, the timer switch is turned on.
Is set to the timer time setting mode,
Until the timer count reaches the specified value, the above display
Section to display the timer time, and
-And the minus key can change the timer time.
The time setting timer count exceeds a predetermined value.
Automatically changes to the current time setting mode and
Section to display the current time, and the plus key and
The current time can be changed with the minus key
A timer operation controller for a heater. 2. In the current time setting mode,
To change the time, press the setting switch for a predetermined time.
Continue to change to a state that can be changed
Timer operation control device for a heater according to claim 1, wherein the a.