JPH07106059A - Constant mode heater of electromagnetic cooker - Google Patents

Abstract

PURPOSE:To make cooking easy by executing constant mode heating every when an objective heating container is placed on the placing surface by utilizing a pan sensor in an electromagnetic cooker. CONSTITUTION:Heat of an inverter unit A is set in a specified heat by a signal from a constant mode operating part 11 for outputting a constant mode heating signal, and in this state, heating operation is executed for a specified time, then heating operation by the specified heat is stopped. The inverter unit A is operated so that keeping warm is conducted in a specified weak heat with a keeping warm mode controller 2. In a keeping warm mode heating state, a pan sensor S is operated, and when a pan sensing output from the pan sensor S disappears, the operation of the keeping warm mode controller 2 is stopped, and when the pan sensing output from the pan sensor S appears, the constant mode heating is started again.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a constant mode heating device for an electromagnetic cooker, and more particularly to a constant mode heating device capable of cooking in a constant heating mode every time a container to be heated is placed on a cooking surface. Is.

[0002]

2. Description of the Related Art An electromagnetic cooker is safe in that the container to be heated itself, which generates electromagnetic induction such as iron, generates heat, and the mounting surface for mounting the container does not generate heat. Recently, an electromagnetic unit for this electromagnetic cooker, a so-called inverter unit, is commercially available, and an electromagnetic cooker using this is generally equipped with an inverter unit (A) inside a casing as shown in FIG. Various electromagnetic cookers with a built-in top plate of this casing and a loading area (P) for the heated container (K) corresponding to the output section (A ₁ ) of the inverter unit (A) Has become.

This electromagnetic cooker is used for various cooking,
For example, in the case of an electromagnetic cooker for steak cooking used in restaurants, etc., when steaks and supplements that have been cooked to some extent are placed on a steak plate and this steak plate is used as it is for the final heating as a heated container (K), etc. Is also used. In such final heating, the size of the steak plate used in the restaurant etc. is determined, and the final heating degree is also a fixed value set uniquely for each store, so many similar steak dishes are prepared. In this case, in the final heating, the same heating mode is repeatedly executed.

On the other hand, the commercially available inverter unit (A)
Has a built-in pan detector (S) in order to eliminate the danger and waste of leaving the container to be operated on the placing surface (P) while the electromagnetic cooker is in use. The pan detecting device (S) outputs a predetermined signal when the heated container (K) is placed in the storage area (P). In this commercially available inverter unit (A), if this signal output disappears for a certain period of time, the inverter unit (A)
The operation of is stopped.

According to the present invention, "an inverter unit (A) for electromagnetic cooking is built in, and a loading area (P) for a heated container (K) is provided corresponding to the output part (A ₁ ) of the inverter unit (A). In the above-mentioned pan, the unit is an electromagnetic cooker with a built-in pan detection device (S) that outputs a predetermined signal when the heated container (K) is placed in the above-mentioned storage area (P). Using the detection device (S), the heating in a certain mode as described above is executed every time the container to be heated is placed on the placement surface, and the task is to facilitate cooking. To do.

[0006]

[Technical Means] The technical means of the present invention for solving the above-mentioned problem is that "the power of the inverter unit (A) is set to a predetermined heat power by a signal input from the constant mode operation unit (11), and A constant mode heating control device (1) for stopping the heating operation by the predetermined thermal power after executing the heating operation,
After this constant mode heating is completed, there is a heat retention mode control device (2) for operating the inverter unit (A) so as to keep it warm with a predetermined small heat power, and a heating state controlled by this heat retention mode control device (2). When the pan detection device (S) is activated and the pan detection output from the pan detection device (S) disappears, the operation of the heat retention mode control device (2) is stopped and the pan detection device (S) It is composed of a reheating control device (3) which outputs a restart signal of the constant mode heating control device (1) when a pan detection output is generated ”. (See Figure 2)

[0007]

The above technical means operates as follows. Constant mode operation part with the heated container (K) placed in the loading area (P)
When (11) is operated, the constant mode heating control device (1) is activated, and the inverter unit (A) operates the container (K) to be heated by the predetermined heating power set by the constant mode heating control device (1). To heat. Then, when this heating state continues for a set time, heating by the thermal power is stopped. Since the heating power and the heating time are preset to predetermined values according to the type of cooking, the degree of cooking at the end of heating by the constant mode heating control device (1) becomes a predetermined value. After that, the heat retention mode control device (2) operates to perform heating in the heat retention mode to maintain the cooking degree. During this time, the presence or absence of the heated container (K) is detected by the pan detection device (S), and as long as the heated container (K) is placed, the heating mode heating is executed and the heated container (K) is removed. Then, the reheating control device (3) is activated. When a new heated container (K) is placed, the constant mode heating control device
The inverter unit (A) operates under the control of (1).
That is, the heating in the constant mode is restarted. In this way, by simply operating the constant mode operation unit (11), the container to be heated can be
Every time (K) is placed on the placing area (P), heating is performed in a constant heating mode, and after this heating is completed, the heating state is maintained.

[0008]

[Effects] Simply by operating the constant mode operation part (11), heating in a constant heating mode is executed every time the container to be heated (K) is placed in the placement area (P), and this heating is completed. After that, it is kept warm so that it can be conveniently used when repeating the final heating in steak cooking. In this case, since it is not necessary to perform any operation after the initial operation, the workability when repeatedly processing a large number of similar dishes is significantly improved.

[0009]

Embodiments of the present invention described above will now be described in detail with reference to the drawings. [Embodiment 1] In this embodiment, as shown in FIG. 3, a steak plate (hereinafter referred to as an iron plate) is a device for final heating of a steak and an accessory, which is a front surface of a casing of an electromagnetic cooker. On the operation panel (M) of, the iron plate button (12) for selecting the constant mode heating for iron change and the set time of the timer (15) for controlling the heating time of constant mode heating are set. Timer set button (13) and timer start button
(13a) is provided, and these three operating sections function as the above-mentioned constant mode operating section (11). A heating power setting device (14) that outputs a heating power setting signal by operating the iron plate button (12) is provided, and the output from the iron plate button (12) and the output from the timer (15) are AND circuits ( It is input to the inverter unit (A) via 16). The thermal power setting device (14), the timer (15) and the AND circuit (16) function as the above-mentioned constant mode heating control device (1).

Further, in this embodiment, in order to detect the presence or absence of the iron plate (K ₁ ) as the container (K) to be heated at regular time intervals after the heating by the constant mode heating control device (1) is finished, An auxiliary timer (31) for controlling the operation time of the detection device (S) and a pause timer (31a) for controlling the pause time are provided. These timers will stop after the set time of the auxiliary timer (31) has elapsed and the rest timer (31a) will be reset and will operate, and then will stop after the set time of the rest timer (31a) has passed and will go to the auxiliary timer (31a). It operates alternately so that 31) is reset. The negative output from the auxiliary timer (31) and the output from the pan detecting device (S) are AND circuit (32) and OR circuit (56).
The timer (15) is reset by being input to the timer (15) via. Therefore, the auxiliary timer (31) and the AND circuit (32) have the above-mentioned reheating controller.
It will function as (3).

The auxiliary timer (31) and the rest timer (3
1a) outputs the output of the OR circuit (54) to the CLR of these timers.
Since it is input to the terminal, it is configured to be stopped by the output when the pan detection device (S) is not detecting the iron plate or the output when the iron plate button (12) is "OFF". Also, AND circuit (51)
And the output of the OR circuit (52) sets the heat retention mode when the auxiliary timer (31) is operating and the pan detection device (S) is in the iron plate detecting state, and when the rest timer (31) is operating. vessel
It is configured to operate so that the thermal power signal from (2) is input to the inverter unit (A). Therefore,
After the heating by the constant mode heating control device (1) is completed, the heating mode is set to the heat retention mode and the presence of the iron plate (K ₁ ) is detected by the pan detection device (S) while the auxiliary timer (31) is operating. The pot detecting device suspends the detection operation of the iron plate (K ₁ ) while the rest timer (31a) is operating. When the iron plate (K ₁ ) is removed during the operation of the auxiliary timer, the OR circuit (54) is turned off and the AND circuit is turned off.
(51) is turned off, and heat retention mode heating is stopped.

In order to automatically execute the control operation after the heating in the constant mode, the negative output of the timer (15) is output from the pause timer (31a) together with the auxiliary timer (31) via the OR circuit (53). ) Has been entered. Also, a pan detector
In this embodiment, the output of the timer start button (13a) and the output of the pan detection device (S) are set so that the constant mode heating is executed while (S) detects the iron plate (K ₁ ). Is input to the AND circuit (55), and the output from this AND circuit (55) is A
It is input to the timer (15) via the OR circuit (56) together with the output from the ND circuit (32).

Furthermore, in order to switch between the constant mode heating and the heat retention mode heating, the output from the iron change button (12) and the OR circuit
The negative output from (52) is input to the AND circuit (57), and the output from the AND circuit (57) inputs the setting output from the thermal power setting device (14) to the inverter unit (A) and the OR circuit. The output from (52) is used to input the set output from the heat retention mode setting device (2) to the inverter unit (A).

In this embodiment, a constant mode heating control device is used.
After the heating by (1) is completed, the iron plate (K
₁ ) The presence / absence of ( ₁ ) is detected at fixed time intervals, and whenever the iron plate (K ₁ ) is removed and the iron plate (K ₁ ) is removed, the iron plate (K ₁ ) is placed in the constant mode heating standby state. Each time the constant mode heating is performed. The details of this series of operations are the same as those of the next embodiment in which the control device of the above embodiment is configured to be executed by a microcomputer, and therefore detailed description thereof will be given later.

[Embodiment 2] A case in which the above control operation is executed by a microcomputer will be described with reference to the flowcharts shown in FIGS. When performing constant mode heating using an iron plate, first, the constant mode operation unit
Press the iron plate button (12) as (11). Then, the heating time is set by the timer set button (13), and then the timer start button (13a) is operated. In this embodiment, the thermal power setting by the thermal power setting device (14) is performed by a specific thermal power signal (for example, a predetermined level) set by a known thermal power control device (not shown) built in the inverter unit (A). Signal voltage) of the inverter unit
This signal value can be adjusted while it is configured to output to (A), and this thermal power setting device (14) is a so-called semi-fixed system.

By the above operation, the inverter unit (A)
When the start signal is input, the step (41) whether Tetsusara (K ₁₎ is placed is determined by the pan detection device (S) by Tetsusara (K ₁₎ is placed And the inverter unit (A) becomes the operating state, and the heating power set by the heating power setting device (14) continuously heats for the set time of the timer (15).

When this continuous heating is completed, the heat retention mode control is performed.
The control device (2) is turned on and heating in the heat retention mode is opened.
The auxiliary timer (31) is simultaneously started by the step (42).
It is turned on and this auxiliary tie is
The pan detector (S) is activated for the set time of the
(K₁) Is detected. And this
Between the iron plate (K₁) Is removed, the iron plate button (12)
Insulation mode control (2) is off unless turned off
At the same time, return to step (41) and add a new iron plate (K₁)But
Wait in this state until it is placed. And newly iron
Plate (K ₁) Is placed, the timer (15) is reset and
Turns on and again for the duration of this
Inverter unit by the thermal power set by (14)
(A) executes heating operation.

When the iron plate (K ₁ ) is not removed within the set time of the auxiliary timer (31) during the heat retention heating in the heat retention mode described above, this heat retention heating continues as it is, and the rest timer ( After stopping the detection operation of the pan detector (S) for a certain time set by (31a), the auxiliary timer (31) is turned on again in step (42) and set by this auxiliary timer (31). Monitor whether the iron plate (K ₁ ) has been removed for a certain period of time. Unless the iron plate (K ₁ ) is removed from the mounting surface, the monitoring operation is repeated after a certain rest time by the rest timer (31a).

When the iron plate (K ₁ ) is removed, the next constant mode heating standby state is maintained unless the iron plate button (12) is turned off as described above. Therefore, each time the iron plate (K ₁ ) is placed, the above-mentioned constant mode heating is executed, and thereafter, the heat retention heating is executed until the iron plate (K ₁ ) is removed. In the above embodiment, the heat retention mode control device (2) is configured to intermittently input a constant thermal power signal to the inverter unit (A) at regular time intervals, and this configuration itself is known. .
Since the commercially available inverter unit (A) incorporates this kind of thermal power setting device, it may be used as the heat retention mode control device (2).

In the above embodiment, the thermal power setting device (14) is separately provided, but as shown in FIG. 3, the commercially available inverter unit (A) is equipped with the thermal power adjusting device (14a). Normally, since the operation knob (14b) is arranged on the operation panel (M), this heat power regulator (14a) is used as a heat power setting device (14), and the heat power is adjusted by operating the iron plate button (12). The heating signal set by the regulator (14a) is the AND circuit (1
It may be configured to be input to the inverter unit (A) via 6).

In this embodiment, the case where the iron plate (K ₁ ) is heated has been described, but the apparatus of the present invention can be used for heating other heated containers (K) and cooking other than steak dishes. It doesn't burn to say Further, in this embodiment, the pan detecting device (S) is intermittently operated at a constant time interval after the constant mode heating is finished, but it may be continuously operated.

[Brief description of drawings]

FIG. 1 is an explanatory view of an electromagnetic cooker.

FIG. 2 is an explanatory view of the principle of the present invention.

FIG. 3 is a schematic diagram of a first embodiment of the present invention.

FIG. 4 is an explanatory diagram of the first half of a flowchart in the case of controlling by a microcomputer (Example 2).

FIG. 5 is an explanatory diagram of the latter half of the flowchart in the case of controlling by a microcomputer (Example 2).

[Explanation of symbols]

 (A) ・ ・ ・ Inverter unit (K) ・ ・ ・ Heated container (P) ・ ・ ・ Placement area (S) ・ ・ ・ Pan detection device (2) ・ ・ ・ Insulation mode control device (11) ・ ・・ Constant mode operation unit (S) ・ ・ ・ Pot detector (3) ・ ・ ・ Reheat controller

Claims (2)

[Claims] 1. An electromagnetic cooking inverter unit (A) is built-in, and a loading area (P) for a heated container (K) is provided corresponding to the output section (A ₁ ) of the inverter unit. In the electromagnetic cooker containing the pan detection device (S) that outputs a predetermined signal when the heated container (K) is placed in the above-mentioned storage area (P), the constant mode operation part (11 A constant mode heating control device (1) that stops the heating operation by the predetermined heating power after executing the heating operation for the set time with the heating power of the inverter unit (A) set to the predetermined heating power by a signal input from
And a heat retention mode control device (2) for operating the inverter unit (A) so as to keep it warm with a predetermined small thermal power after the end of this constant mode heating, and a heating state controlled by this heat retention mode control device (2). When the pan detection device (S) is operated and the pan detection output disappears, the operation of the heat insulation mode control device (2) is stopped and the pan detection output from the pan detection device (S) is generated. In the case of the constant mode heating control device
A constant mode heating device for an electromagnetic cooker comprising a reheating control device (3) that outputs the restart signal of (1). 2. The constant mode heating device for an electromagnetic cooker according to claim 1, wherein the pan detection device (S) is intermittently operated in a heating state controlled by the heat retention mode control device (2).