JP2547571B2 - Electric heater timer-device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a timer device for an electric heater, which is most suitable for an electric heater and automatically cuts off electricity to a heater after a predetermined time.

(B) Conventional technology Conventionally, a heater having a timer for shutting off a load of a heater or the like after a predetermined time has been known from Japanese Utility Model Publication No. 60-20077. It is convenient in terms of safety and waste of power consumption when the power is forgotten to be turned off. However, the timer needs to be set every time the device body is used, which is more troublesome.For example, even if the user is near the device body and is using it, the timer cuts off the power supply to the heater. It was inconvenient.

(C) Problems to be Solved by the Invention The present invention resets the auto timer to 0 when the user operates either the temperature control button or the timer button of the device body while the device body is in use. It prevents the electric power to the heater from being cut off unexpectedly.

(D) Means for Solving the Problems The present invention provides a temperature setting means for a heater, a timer setting means and a timer time storing means for energizing the heater at a preset time, and at least the temperature setting means. Key input means having a temperature control button for inputting data and a timer button for inputting setting data to the timer setting means, and counting is started by operation of the key input means, and power supply to the heater is cut off after a predetermined time. The automatic timer is configured to be reset, and the automatic timer is reset to 0 and restarts counting when either the temperature control button or the timer button of the key input means is operated.

(E) Action When using the main body of the equipment having the heater, operate the temperature control button to input the temperature setting data into the temperature setting means or operate the timer button to input into the timer setting means, and at the same time input the temperature adjustment button. The signal is input to the auto timer and reset to 0, and the timer counts until a preset predetermined time is reached. If the temperature control button or the timer button is operated before the predetermined time is reached, the auto timer is reset to 0 and the counting is restarted.

(F) Example Next, an example of the present invention will be described with reference to the drawings. An electric carpet will be described as an example. FIG. 1 is a plan view showing a connected state of a controller (1) and a carpet (2) (hereinafter referred to as a carpet) which is a device body.
(3) is a changeover switch for turning off the power to the heater (4), "ON / continuously" to turn on the power, and "Timer" for switching the power, and (5) is a switch for changing the switch (3) to "timer". , A power lamp that lights up when in the "ON / CONTINUE" position, (6) is temperature control buttons (7) and (8) for raising and lowering the set temperature and its temperature display lamp (9a) ( 9b) (9c) (9d) (9e) (9f) (9g) and quick heat button (10) and its quick heat lamp (11), automatic button (12)
The temperature control unit has the automatic operation lamp (13). When the temperature control button (7) is operated continuously, the set temperature rises in steps and the temperature display lamps (9a) ... (9f)
The weak (1) lamp (9a) is sequentially turned on to the "strong" side, and the lamp at the desired position is continuously turned on. Similarly, if the temperature control button (8) is operated continuously, it will become strong, and the “7” lamp (9
From g), the light goes on to the "weak" side.

When the automatic button (12) is operated, the set temperature automatically becomes "4", the lamp (9d) lights up, and when the outside air temperature detected by the room temperature sensor (14) is low, the set temperature automatically becomes "5". When the outside temperature is high, the set temperature is automatically set to "3" and the lamp (9c) is turned on, depending on the outside temperature "3" or "4". Alternatively, the heater (4) is controlled at the set temperature of "5".

When the quick heat button (10) is operated, the set temperature becomes strong “7” for a certain time regardless of the temperature set by the temperature adjustment buttons (7) and (8), and the temperature adjustment button (7 ), And returns to the set temperature set by (8).

(15) is a heating area changeover switch, and is selected so that the right side or left side or the entire surface of the carpet (2) is heated, if desired, and the switching state is displayed on the heating area changeover display section (16). .

(17) is a skip key, and when the heater (4) is energized based on the energization time width set by the timer time setting means (39) described later, the operation temporarily energizes the heater (4). The power is cut off, and when the operation is performed again, the power is restored and the energization is restarted.

(18) is the current time set key for setting the current time,
(19) is a time set key for setting the energization time width by a timer. The first operation causes the set mode and the second operation completes the setting. (20) is a time / cursor key having an up button (21) and a down button (22) for setting the current time and the energization time width by a timer, and (23) is the time / cursor key (20). A timer [ON] set key that sets the heater (4) to energize based on the set energization time width,
(24) is a timer (off) set key that is set by the timer (on) set key (23) in advance to cut off the energization of unnecessary time width of the energization time width. Valid only when

Then, the time display section (25) shown in FIGS. 1 and 2 will be described. (26) is a current time display section for digitally displaying the current time, which is composed of time zone indicators (27) and (28) and a numeric indicator (29). Reference numeral (30) is a timer time display section composed of a plurality of display devices (31a) ... (31l) which are partitioned at predetermined time intervals (every 1 hour in the embodiment) and are continuously arranged in a horizontal row. ) To display the energization time width, and by switching the display of AM and PM, the energization time width in each time zone is displayed. Reference numeral (32) is a timer display lamp which is turned on by a timer set (when the changeover switch (3) is set to the "timer" position after setting the energization time width). (33) is the skip key (17)
This is a skip lamp displayed when is operated.

Next, the block diagram shown in FIG. 2 will be described. (34) is an oscillator circuit that outputs a reference clock pulse,
(35) is a first clock means for counting and dividing the reference clock pulse from the oscillation circuit and outputting a time signal, (36)
Is a time display means for outputting the time data from the first clock means (35) to the present time display section (26), and (37) is the changeover switch (3), temperature control buttons (7), (8) described above. ,
Fast heat button (10), automatic button (12), heating area selector switch (15), skip key (17), current time set key (18), time set key (19), time / cursor key (20), The key input means comprises a timer [ON] set key (23) and a timer [OFF] set key (24).
Reference numeral (38) is a time setting means for changing the time data of the first time measuring means (35) by the output of the current time setting key (18).
It is set with the cursor keys (20). (39) is for inputting the "timer" position of the changeover switch (3), time set key (19) and time / cursor key (20), timer [ON] set key (23) and timer [OFF] set key (24) ) Is a timer time setting means for moving the cursor and setting the energization time width by inputting a timer button (TB). The aforementioned cursor means the cursor display means (40) by inputting the time / cursor key (20).
The display (31a) …… (31l) is sequentially moved to the right side of the drawing via the, but the display in this case is blinking unless the timer [ON] set key (23) is operated. In the display. (41) is a timer time storage means for storing in RAM the energization time width to the heater (4) set by the time / cursor key (20),
2) is the timer time display section (30) for indicating the duration of energization to the heater (4) by the output of the timer time storage means.
(43) is a comparison means for comparing the memory data of the timer time storage means (41) with the time data of the first time measurement means (35). When the contents of the above-mentioned data match, the output is set to "H". (44) is the key input means (3
When the input from 7) is received, counting is started, the output is set to "H" level during the counting, and the output is set to "L" after a predetermined time (24 hours). The auto timer is configured by resetting to 0 each time there is an input of and restarting counting. Input from the key input means at this time may be performed by operating any key or button. Then, the auto timer shown in FIG. 3 will be described in detail. (45) is a low-pass filter (hereinafter referred to as LPF) that converts the clock pulse of the oscillation circuit (34) into a continuous "H" level signal, (4
6) is a multi-vibrator (hereinafter referred to as MV) that makes the output of the key input means (37) a one-shot pulse, (4
7) is when the output of the LPF (45) is “H” and is MV (4
A counter that starts counting when a pulse is input from 6) and the output becomes “H” during the counting. When a pulse is input to MV (46) again during counting, it is reset to 0 and then again. Start counting. (48) is a control means which is driven when the changeover switch (3) of the key input means (37) is "ON / continuous" or when the output of the comparison means (43) is "H", and (49) is the above Temperature detecting means for detecting a change in resistance value of the heat sensitive element (50) provided in the vicinity of the heater (4) and inputting it to the control means (48), and (51) is a temperature adjusting button of the key input means (37). (7),
It is a temperature setting means for setting the desired temperature of the carpet (2) by the input of (8) and inputting it to the control means (48). (52) is a two-gate AND which outputs "H" when the output of the control means (48) is "H" and when the output of the second timing means (44) is "H", (53)
Is a triac having a gate connected to the output of the 2-gate AND (52) and connected in series to the heater (4).

Next, the operation will be described. First, the procedure for setting the current time will be described. When the present time set key (18) is operated, the hour digit of the present time display section (26) blinks. In this state, operate the up button (21) to fast forward the hour digit to match the hour digit of the current time. Then, the current time set key (18) is operated again to set the hour digit, the minute digit blinks, and the up button (21) is operated to fast forward the minute digit. The down button (22) is used to return when the operation has been performed by the up button (21) and the overshoot has occurred. And
The current time set key (18) is operated to complete the setting of the current time, and the current time is displayed on the current time display section (26) by the time display means (36).

Next, the setting of the energization time width of the heater (4) by the timer will be described. First, when the changeover switch (3) is set to the "timer" position and the time set key (19) is operated, the output of the timer time setting means (39), the timer time storage means (41) and the timer time display means (42) Time zone that automatically corresponds to the current time (AM or P
M) is displayed and the output of the MV (46) is input to the counter (47) by the operation of the time set key (19), and the counter starts counting. Then, after operating the time set key (19), the up button (21) is continuously operated to move the cursor to a desired position and the timer is turned on.
After operating the set key (23), operate the timer [OFF] set key (24) to set the energization time width. Then, the display content of the timer time display section (30) automatically displays the time zone corresponding to the current time by the output of the time display means (36), and then displays the time zone corresponding to the time zone of the current time. indicate.

The set energization time width is input to the timer time storage means (41) and the current time described above is input to the comparison means (43) as numerical data of the first timing means (35).

Then, after setting the above-mentioned energization time width, the current time changes, and when the current time and the first energization start time of the energization time width eventually match, the output of the comparison means (43) becomes "H" and control is performed. The output of the means (48) is set to "H". On the other hand, since the second timing means (44) is counting and the output is “H” when the energization time width is set, the output of the 2-gate AND (52) becomes “H” and the triac (53) becomes conductive and the heater (4) is energized. Of course, at this time, the temperature control buttons (7) and (8) of the key input means (37) are used in advance to control the control means (48) via the temperature setting means (51) so that the carpet (2) reaches a desired temperature. You are typing. Then, the resistance change due to the heat sensitive element (50) is input to the control means (48) through the temperature detection means (49) to maintain the desired temperature.

After that, when the heater (4) is continuously energized while maintaining the desired temperature and the second time counting means (44) starts counting, 24 hours have elapsed without any input from the key input means (37) ( 4 (solid line time), counter (4
The output of 7) becomes "L", and the output of the 2-gate AND (52) becomes "L", and the triac (53) is made non-conductive to cut off the power supply to the heater (4).

If there is an input from the key input means (37) while the counter (47) is counting as described above,
(Point P in FIG. 4) The counter (47) is input to the 0 reset terminal, the counter (47) restarts counting from 0 again, and there is no input from the key input means (37) again while the counting continues. When 24 hours have passed, the power to the heater (4) is cut off. (Time indicated by broken line in FIG. 4) When the changeover switch (3) is set to the “ON / CONTINUE” position and the desired temperature is set by the temperature adjusting buttons (7) and (8), the key input means (37) is set. Output (X in Figure 2)
The control means (48) is driven by the second
2 gate AND (52) with time counting means (44) counting
Output becomes "H" and the heater (4) is energized. Similarly, when there is no input from the key input means (37) after the counter (47) starts counting, the energization of the heater (4) is cut off after 24 hours.

The counter (47) has a user's key input means (37).
It is reset to 0 every time any button or key is operated, and counting is continued unless there is an input from the key input means (37) during counting.

In the present invention, the count is started or reset to 0 when all the buttons or keys of the key input means are operated. For example, the present time set used when setting the present time. Keys such as keys that are not directly connected to the heater may be unrelated to the counter.
In short, the counter may be at least one that starts counting or is reset to 0 by operating the temperature control button which is directly related to the energization of the heater and the timer button which sets the energization time width by the timer.

(G) Effect of the Invention As described above, according to the present invention, the auto timer is reset to 0 when the user operates either the temperature control button (of the key input means) or the timer button while the device body is in use. The timer counts and the heater is turned off after a specified time without any input from the key input means during counting. When the user forgets to turn off the power, the power to the heater is cut off after a predetermined time to prevent waste of power consumption and prevent fire.
Also, even if the user is operating the temperature control button or the timer button, the count will be reset to 0. Therefore, the user may be near the equipment body and suddenly switch to the heater during use. There is no interruption of energization.

[Brief description of drawings]

FIG. 1 is a plan view of a controller of an electric carpet in which a timer device for electric equipment of the present invention is implemented, FIG. 2 is a block diagram thereof, FIG. 3 is a detailed view of an auto timer, and FIG. 4 is each part of FIG. Is a time chart of. (4) …… Heater, (37) …… By key input means, changeover switch (3), temperature control buttons (7), (8), quick heat button (10), automatic button (12), heating area switching Switch (15), Skip key (17), Current time set key (18), Time set key (19), Time / cursor key (20), Timer [on] set key (23), Timer [off] set key It consists of (24). (35) …… First timer, (44) …… Second timer which constitutes an auto timer, (TB) …… Timer button, changeover switch (3)
"Timer" position input, time set key (19), time / cursor key (20), timer [ON] set key (23), timer [OFF] set key (24).

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Isao Hamada 3-201 Minamiyoshikata, Tottori City Sanyo Denki Co., Ltd. (56) References JP-A-55-117886 (JP, A) JP-A-55-102839 (JP, A) Actually open Sho 61-106129 (JP, U)

Claims (1)

(57) [Claims] 1. A heater, a temperature setting means for the heater, a timer setting means and a timer time storing means for energizing the heater at a preset time, and a temperature adjustment for inputting setting data to at least the temperature setting means. A key input means having a button and a timer button for inputting setting data to the timer setting means, and an automatic timer for starting counting by operating the key input means and cutting off the power supply to the heater after a predetermined time ,
The timer device for an electric heater, wherein the automatic timer is reset to 0 and restarts counting when either the temperature control button or the timer button of the key input means is operated.