JPH0584142A - Cooking apparatus - Google Patents

Abstract

PURPOSE:To provide a cooking apparatus which indicate that an altered preheating control is completed when a preheating set temperature altered is reached. CONSTITUTION:This cooking apparatus having a preheating function includes a heater driving circuit 4 to heat the inside a chamber, a sensor circuit 3 to detect the temperature of foods and the inside of the chamber correlatively, a reporting means 5 to indicate a detection temperature of the sensor circuit 3 to a user and a control means 1 to perform a total control of the parts as mentioned above. A control means 1 executes a preheating control processing again in the alteration of a set temperature during the execution of a warming control after the arrival of the preheating control temperature and when the arrival of the set temperature altered is detected with the sensor circuit 3, the completion of preheating is reported by the reporting means 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooking device such as an oven or a hot plate which requires preheating before the main heating of food.

[0002]

2. Description of the Related Art Generally, most cooking devices having a hot plate or an oven have a preheating function. Then, the conventional cooking device with the preheating control function starts energization of the heater based on the preheating control temperature set value input from the operation unit. The signal from the sensor that detects the temperature rise due to the energization of this heater is compared with the set preheat temperature. A sound is output, and thereafter, heat retention control based on the preheat set temperature is executed to keep the preheat temperature constant.

[0003]

However, in the above-mentioned prior art, when the preset temperature is changed for some reason during the execution of the heat retention control, the temperature change is input as the temperature change of the heat retention, and the changed temperature is set to the changed temperature. Performs heat retention based on it. Therefore, there is no display or notification sound output at the time when the changed temperature is reached, and there is no means for recognizing the completion of the function for changing the preheating temperature.

Therefore, the present invention has been made in consideration of the above circumstances, and an object thereof is to notify that the changed preheating control is completed when the changed preheat set temperature is reached. The purpose is to provide a cooker that can.

[0005]

In order to achieve the above object, in the cooking device according to the present invention, in the cooking device having a preheating function, a heater drive circuit for heating the inside of the refrigerator,
A sensor circuit that correlatively detects the temperature of the food and the inside of the refrigerator, an informing unit that informs the user of the temperature detected by this sensor circuit, and a control unit that controls the whole of these are provided. When the set temperature is changed during the heat retention control, the control means executes the preheat control process again, and when the sensor circuit detects that the changed set temperature is reached, the notification means notifies the preheat completion. is there.

[0006]

In the present invention having the above-mentioned configuration, the preheat control process is executed again for the change of the preset temperature during the execution of the heat retention control, and when the preset preheat set temperature is reached, the changed preheat control is performed. By notifying that the process has been completed, it is possible to notify the user of that fact.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a control block diagram showing an embodiment of a cooker according to the present invention. The cooker of this embodiment is a one-chip micro computer (hereinafter, abbreviated as a microcomputer) as a control means for controlling the entire cooker. ) 1, a key operation unit 2, a sensor circuit 3 that correlatively detects food and the temperature inside the refrigerator,
The heater drive circuit 4 for heating the inside of the refrigerator and the display unit 5 as a notification means for displaying the detection signal of the sensor circuit 3 on a monitor are generally configured. The key operation unit 2 has a heating start key 2a, a menu selection key 2b, a temperature setting increase key 2c, and a temperature setting decrease key 2d.

Next, the operation of this embodiment will be described with reference to FIGS. 2 and 3. First, after pressing the menu selection key 2b of the key operation unit 2 to set the heating mode, similarly, the temperature setting increase key 2c or the temperature setting decrease key 2d of the key operation unit 2 is pressed to set the preheat control temperature. To do. After that, when the heating start key 2a is pressed to start heating, the microcomputer 1 outputs a signal to the heater drive circuit 4 and the sensor circuit 3
Monitor the detection signal from. The detection signal from the sensor circuit 3 is monitored by the display unit 5, and the displayed temperature rises toward the set temperature. And the sensor circuit 3
When the detection signal from the controller exceeds the preheat set temperature value, the microcomputer 1 stops the signal to the heater drive circuit 4 and at the same time turns off the detection temperature monitor display and outputs a preheat completion notification sound on the display unit 5 Make the user aware of completion.

After this state, the heat retention control is performed,
When the preheat set temperature is changed for some reason, for example, when the temperature setting increase key 2c is pressed to change the preheat control temperature to 230 ° C. while the heat retention control is currently performed at 200 ° C., the setting is performed. At the same time that the temperature display is changed from 200 ° C. to 230 ° C., the microcomputer 1 suspends the heat retention control based on the determination that the temperature is being changed while the heat retention control is being executed, and shifts the control to the preheat control process again. Therefore, a signal is output to the heater drive circuit 4 and the temperature rise control is executed. Then, the temperature raised by the heater drive circuit 4 is detected through the sensor circuit 3, it is determined whether or not the preheat change set temperature is reached, and when the sensor circuit 3 detects the arrival, the display unit 5 displays and informs again. The sound output informs the user of the completion of preheating. Here, FIG. 2 shows the difference between the series of controls of the present embodiment and the conventional control, and FIG. 3 shows the operation of the microcomputer 1.

In the above embodiment, when the sensor circuit 3 detects that the changed set temperature has been reached, the display section 5 as an informing means informs the user by both the preheating completion display and the informing sound output. However, the notification means is not limited to this, and at least one means may be used to notify the user.

[0011]

As described above, according to the cooker of the present invention, if the set temperature is changed after the initial preheating control is completed, that is, while the heat retention control is being executed, the preheating temperature setting is changed. It is possible to make the user recognize the completion of the preheating function for the change of the preheating temperature by making a determination and interrupting the heat retention control and executing the preheating control process again.

[Brief description of drawings]

FIG. 1 is a control block diagram showing an embodiment of a cooker according to the present invention.

FIG. 2 is an explanatory diagram showing a difference in control between the present embodiment and a conventional example.

FIG. 3 is a flowchart showing an operation of the control system of FIG.

[Explanation of symbols]

 1 One-chip micro computer (control means) 2 Key operation part 3 Sensor circuit 4 Heater drive circuit 5 Display part (informing means)

Claims (1)

[Claims] 1. In a cooker having a preheating function, a heater drive circuit for heating the inside of the refrigerator, a sensor circuit for correlatively detecting the temperature of food and the inside of the refrigerator, and a temperature detected by this sensor circuit are notified to the user. A notification means and a control means for controlling all of these are provided, and in response to a set temperature change during the heat retention control after reaching the preheat control temperature, the control means executes the preheat control process again to change the set temperature. When the sensor circuit detects that the preheat has been reached, the cooker notifies the preheating completion by the notifying means.