JPH0917552A - Electric heater temperature control device - Google Patents

Abstract

(57) [Summary] [Purpose] The heater is turned on without compromising the warmth of the main unit.
The purpose is to reduce the maximum power of time. [Structure] A plurality of heaters 2 and a temperature detecting element 3 common to the heaters 2 are provided in a main body 1, and a controller 1
A switch 4 for controlling the energization of each of the heaters 2 in 1
And a timer 5 for counting energization time and a temperature setting means 9
Each heater 2 is installed from the start of energization to the elapse of a certain time.
As a temperature control device for an electric heater equipped with a first energizing function for simultaneously energizing a heater and a second energizing function for sequentially energizing each heater after a lapse of a certain time, each heater 2 is heated up to a preset time. The main body 1 is quickly and sufficiently warmed by simultaneous energization ON / OFF control, and after a certain period of time, that is, after the main body 1 is sufficiently warmed, the heaters 2 are sequentially energized to warm the main body 1 after a certain period of time. It is possible to reduce the maximum power when the heater 2 is turned on without damaging the.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature controller for an electric heater for controlling the temperature of an electric carpet or the like.

[0002]

2. Description of the Related Art A conventional temperature control device for an electric heater such as an electric carpet is to obtain heating by contact heat transfer to a sitting person and low temperature radiation, and it is necessary to have a large area.
It is generally known that multiple heaters are arranged so that the heating area can be selected according to the number of people used, and when heating the whole, each heater is turned on / off at the same time to obtain a predetermined temperature. It was being done.

(See, for example, Japanese Patent Application Laid-Open No. 62-195879)

[0004]

However, in the above-mentioned structure, even when the main body temperature is sufficiently warmed and the average power consumption is reduced, when the heater is turned on, the electric power is supplied at the maximum electric power, so that other electric appliances are supplied. However, there is a problem that other electric appliances cannot be used due to the current capacity of the household wiring.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a plurality of heaters and a common temperature detecting element for detecting the heat generation temperature of the heaters are provided in the main body, and the main body of the main body is provided. In a temperature controller for an electric heater, a controller installed at an end is provided with a switch for controlling energization of each of the heaters, a timer for counting energization time, and a temperature setting means for setting temperature The first energizing function of simultaneously energizing the heaters from the first to the elapse of a fixed time, and the second energizing function of sequentially energizing the heaters after the elapse of the fixed time.

A first energizing function for simultaneously energizing the heaters from the start of energizing the timer until a certain time has elapsed, and a second energizing function for sequentially energizing the heaters after a certain time has elapsed.
The temperature control circuit having the current-carrying function is connected.

A first energizing function for simultaneously energizing the heaters from the start of energizing the timer until a certain time has elapsed, and a second energizing function for sequentially energizing the heaters after a certain time has elapsed.
The temperature control circuit having the current-carrying function is connected, and the heater selection circuit is further connected to the temperature control circuit.

Further, a plurality of heaters and a common temperature detecting element for detecting the heat generation temperature of the heaters are provided in the main body, and a controller installed at the end of the main body is provided with an opening / closing for controlling energization of each of the heaters. In a temperature control device for an electric heater, which is provided with a heater and temperature setting means for setting a temperature, the first energizing function and second A microcomputer for changing the switching time of the energizing function is provided between the temperature setting means and the switch.

[0009]

According to the present invention, a plurality of heaters and a common temperature detecting element for detecting the heat generation temperature of the heaters are provided in the main body, and energization control for each of the heaters is performed in the controller installed at the end of the main body. In a temperature control device for an electric heater, which is provided with a switch to be operated, a timer for counting energization time, and a temperature setting means for setting temperature, a first energization for simultaneously energizing each heater from the start of energization until a certain time elapses. The temperature control circuit having a function and a second energization function for sequentially energizing each heater after a lapse of a certain time, or the first difference by the temperature difference between the temperature of the main body at the beginning of energization and the set value by the temperature setting means. Since the microcomputer has a configuration in which the switching time between the power-on function and the second power-on function can be changed, each time from the start of power-on to a preset time Ta simultaneous energization of ON of / OF
After the F control is performed and the main body is sufficiently warmed and a predetermined time has elapsed, that is, after the main body is sufficiently warmed, the heaters are sequentially energized.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing an embodiment of the present invention.
This will be described with reference to FIG.

In FIGS. 1 and 2, a plurality of heaters 2 arranged by dividing a heating region of a main body 1 of an electric heater such as an electric carpet into three parts and a common temperature detection for detecting a heat generation temperature of each heater 2. The element 3 is arranged in the main body 1 of the electric heater, and each of the heaters 2 is provided with a switch 4 for controlling energization, and a heater selection circuit 7 for selecting the heater 2 to be energized from the switch 4. And a temperature detection circuit 8 for detecting the temperature by the signal of the temperature detection element 3,
It comprises a temperature control circuit 6 for inputting a signal to the heater selection circuit 7 in response to a signal from the temperature detection circuit 8, a temperature setting means 9 for inputting a set temperature to the temperature control circuit 6, and a timer 5 for monitoring the energization time. There is.

The temperature setting circuit 9 is connected to the input side of the temperature control circuit 6 and the timer 5 and the temperature detection circuit 8 for feedback, and the heater selection circuit 7 is connected to the output side of the temperature control circuit 6.
Are connected.

A plurality of switches 4 are connected in parallel to the output side of the heater selection circuit 7, and each heater 2 is connected to each switch 4.

Also, by replacing the temperature control circuit 6 and the timer 5 with a microcomputer 10 as shown in FIG. 4, a similar temperature control device for an electric heater can be constructed.

Reference numeral 11 denotes a controller provided at the end of the main body 1, which includes the switch 4, the timer 5, the temperature control circuit 6, the heater selection circuit 7, the temperature detection circuit 8 and the temperature setting means 9 or the microcomputer 10 described above. Etc., and is connected to each of the heaters 2 arranged in the main body 1 and a common temperature detecting element 3 for detecting the heat generation temperature of each heater 2.

Next, the operation of one embodiment of the present invention having the above configuration will be described with reference to FIG.

For example, when the heating area of the main body 1 of an electric heater such as an electric carpet is divided into three as shown in FIGS. 1 and 2, a plurality of heaters 2 such as heater a, heater b and heater c will be described. In the case of an electric heater such as an electric carpet in which the heater 2 of FIG.
First, when the power is turned on, each heater 2 in which a plurality of heaters a, b and c are connected in parallel is turned on at the same time, and at the same time when the energization is started, the timer 5 starts counting the energization time.

When the temperature of the main body 1 rises and the temperature detected by the temperature detecting element 3 reaches the temperature set by the temperature setting means 9, all the heaters 2 are turned off, and when the temperature falls below the set temperature. Turn on all heaters 2.

Simultaneously turning on / off a plurality of heaters a, b, and c connected in parallel by repeating this process.
The surface temperature of the main body 1 is quickly warmed up by FF (first energizing function).

Then, a time (for example, 1 hour) in which the surface temperature of the main body 1 is sufficiently warmed up and the ambient temperature is adapted is set in advance, and after the count time of the timer 5 has passed the set time (1 hour). From the above, the heater a, the heater b, and the heater c of the heaters 2 connected in parallel are sequentially energized for a fixed time (for example, 1 minute each), and then all the heaters 2 are turned off. Then, the heater b and the heater c are sequentially energized for a fixed time (for example, 1 minute each) (second energizing function) to keep the surface temperature of the main body 1 constant.

Therefore, the maximum power consumption can be reduced to 1/3 of the total power consumption after the elapse of a certain time.

Further, in the configuration in which the temperature control circuit 6 and the timer 5 are replaced with the microcomputer 10 as shown in FIG. 4, due to the difference between the temperature of the main body 1 at the initial stage of energization and the set temperature input by the temperature setting means 9, The time for switching between the first energizing function and the second energizing function is changed to energize.

[0023]

As described above, according to the temperature controller for an electric heater of the present invention, the following effects can be obtained.

That is, a switch for providing a plurality of heaters and a common temperature detecting element for detecting the heat generation temperature of the heaters in the main body, and controlling the energization of each of the heaters in a controller installed at the end of the main body. And a timer for counting the energization time and a temperature setting means for setting the temperature, a first energization function for simultaneously energizing each heater from the start of energization until a lapse of a certain time, and an energization of each heater sequentially after the lapse of a certain time. A temperature control circuit having a second energizing function for performing the above or a temperature difference between the temperature of the main body at the initial stage of energization and the set value by the temperature setting means is used to change the time for switching between the first energizing function and the second energizing function. Due to the configuration of the microcomputer, the ON / OFF control of simultaneous energization of each heater from the start of energization to a preset time By, warm quickly enough the body.

After a lapse of a certain period of time, that is, after the main body has sufficiently warmed up, the heaters are sequentially energized to reduce the maximum power when the heater is turned on without deteriorating the warmth of the main body. As a result, it is possible to provide a useful temperature controller for an electric heater such that the range of use of other electric appliances is expanded within the allowable current of domestic wiring.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a temperature control device for an electric heater showing an embodiment of the present invention.

FIG. 2 is a block diagram of a temperature control device for an electric heater according to an embodiment of the present invention.

FIG. 3 is a characteristic diagram showing an operation of a temperature control device for an electric heater showing an embodiment of the present invention.

FIG. 4 is a block diagram of a temperature control device for an electric heater showing another embodiment of the present invention.

FIG. 5 is a characteristic diagram illustrating an operation of a conventional temperature control device for an electric heater.

[Explanation of symbols]

 1 Main Body 2 Heater 3 Temperature Detection Element 4 Switch 5 Timer 6 Temperature Control Circuit 7 Heater Selection Circuit 8 Temperature Detection Circuit 9 Temperature Setting Means 10 Microcomputer 11 Controller

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kazuhiro Yabuki, 3-3 Shinjuyoji, Kashiwa-shi, Chiba, Japan 1 Hitate Co., Ltd. Home Tech (72) Kenji Hattori 1-3 Shinjuyi, Kashiwa-shi, Chiba, 1 Hirate, Ltd. In Home Tech

Claims (4)

[Claims] 1. A main body (1) is provided with a plurality of heaters (2) and a common temperature detecting element (3) for detecting a heat generation temperature of the heater (2), and an end portion of the main body (1) is provided. A switch (4) for controlling energization of each of the heaters (2), a timer (5) for counting energization time, and a temperature setting means (9) for setting temperature are provided in the installed controller (11). In the temperature controller of the electric heater, each heater (2) is operated from the start of energization until a certain time elapses.
1. A temperature control device for an electric heater, comprising: a first energizing function for simultaneously energizing a heater and a second energizing function for sequentially energizing each heater (2) after a lapse of a predetermined time. 2. A first energizing function for simultaneously energizing each heater (2) from the start of energizing the timer (5) until a certain time has elapsed, and successively energizing each heater (2) after a certain time has elapsed. The temperature control device for an electric heater according to claim 1, wherein a temperature control circuit (6) having a second energizing function is connected. 3. A first energizing function for simultaneously energizing each heater (2) from the start of energizing the timer (5) until a certain time has elapsed, and after the certain time has elapsed, each heater (2) is sequentially energized. The electric heater according to claim 1, wherein a temperature control circuit (6) having a second energizing function is connected, and further a heater selection circuit (7) is connected to the temperature control circuit (6). Temperature control device. 4. A body (1) is provided with a plurality of heaters (2) and a common temperature detecting element (3) for detecting a heat generation temperature of the heater (2), and an end portion of the body (1) is provided. A temperature controller for an electric heater, comprising a switch (4) for controlling energization of each of the heaters (2) and a temperature setting means (9) for setting a temperature in a controller (11) installed, Temperature setting of a microcomputer (10) for changing the switching time between the first energizing function and the second energizing function depending on the temperature difference between the temperature of the main body (1) at the initial stage of energization and the set value by the temperature setting means (9). A temperature control device for an electric heater, characterized in that it is provided between the means (9) and the switch (4).