JPH0445948B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a control device for a household hot plate.

BACKGROUND ART Conventional hot plate control devices control energization of heaters embedded in the plate based on the set control temperature when the user sets one of the control temperatures of a plurality of plates. It was common to control the temperature of the plate.

Problems to be Solved by the Invention In such conventional hot plate control devices, the temperature is controlled using only one preset control temperature, so the user has to constantly monitor the progress of cooking. The problem was that the control temperature had to be changed, making it inconvenient to use.

In view of the above problems, it is an object of the present invention to notify the user of the end of cooking and then automatically change the control temperature of the plate, thereby enabling automatic cooking and improving usability.

Means for Solving the Problems In order to solve the above problems, the present invention provides a heater embedded in a plate for heating food, a temperature sensor for measuring the temperature of the plate, and a temperature sensor for setting the control temperature of the plate. a setting means, a notification means for notifying a user, a storage means for storing a control process of the hot plate, and a predetermined setting by the temperature setting means based on the control process stored in the storage means. is performed and when the control temperature is reached, an output is sent to the notification means to control the temperature of the plate to the set temperature, and if the temperature of the plate falls to a predetermined value during this period, then when it rises to the predetermined temperature, an output is sent to the notification means. It consists of a control means that outputs an output and controls the set temperature of the plate to be automatically changed.

Effects According to the present invention, with the above-described configuration, a predetermined setting is performed, and when the temperature of the plate reaches the set control temperature, a notification is provided to notify the user that food is to be added. When the plate temperature drops to a predetermined temperature by placing food on the plate, and then rises to a predetermined temperature, the notification means notifies the completion of the food, and at the same time automatically changes the set control temperature. control.

Embodiment FIG. 1 is a block diagram showing an embodiment of the hot plate control device of the present invention. In FIG. 1, 1 is a temperature setting means for setting the control temperature of the plate, 2 is a heater embedded in the plate that heats the food to be cooked, 3 is a temperature sensor that measures the temperature of the plate, and 4 is the start and end of cooking. 5 is a storage means for storing the control process of the plate; 6 is a storage means for storing the control process of the plate; and 6 is a storage means for outputting an output to the notification means 4 when a predetermined setting is made by the temperature setting means 1 and the control temperature is reached. After that, when the temperature of the plate drops to a predetermined temperature despite the constant power supply, and then rises to a predetermined temperature, an output is output to the notification means 4 and the set temperature is changed. control means.

FIG. 2 is a circuit diagram showing a specific configuration of an embodiment of the hot plate control device of the present invention. Second
In the figure, 11 is a temperature setting switch that sets the control temperature of the plate, 12 is a heater embedded in the plate that heats the food, 15 is a temperature sensor that measures the temperature of the plate, and 16 is the output of the temperature sensor 15. An A/D converter that performs A/D conversion; 17, a buzzer that notifies the start and end of cooking; 13, a relay that energizes the heater 12; 14, a relay drive unit that drives the relay 13; 18, the temperature control unit; an input section 18 for inputting the outputs of the establishment switch 11 and the A/D converter 16;
a, a storage section 18c that stores the control process of the hot plate, an output section 18d that outputs output to the relay drive section 14 and the buzzer 17, and the temperature setting switch 11 to perform predetermined settings, and the control temperature When the temperature reaches the temperature, the buzzer 17 is output, and after that, the temperature of the plate decreases to a predetermined temperature even though the current is being supplied with a constant electric power.
After that, when the temperature rises to a predetermined temperature, the buzzer 1
This is a microcomputer equipped with a control section 18b that outputs the output to 7 and controls to change the set temperature.

Next, the operation of the microcomputer 18 will be explained.

FIG. 3 shows the main part of the flowchart of the microcomputer 18. In FIG. 3, in step 21, an input is made on the temperature setting key 11, and in step 22, it is determined whether or not there is an input on the temperature setting key 11. If there is not, the process goes to step 24. Step 2
In step 3, the control temperature of the hot plate is shifted by one, and the process returns to step 21. In step 24, it is determined whether the input of the temperature setting key 11 has been completed, and if not, the process returns to step 21. When the process is completed, in step 25, the set control temperature is determined to determine whether the auto menu (control process point for automatic cooking) has been selected.If the auto menu has not been selected, in step 26, the normal hot plate setting is determined. Perform temperature control. If it has been selected, the temperature sensor 15 is input in step 27. In step 28, it is determined whether the first temperature control point (set temperature) has been passed, and if it has not passed, power is output in step 35. If it passes, it is determined in step 29 whether or not the buzzer 17 has sounded, and if it has not, in step 30 the buzzer 17 is sounded to notify that cooking can begin. If the buzzer 17 sounds in step 29, it is determined in step 31 whether the second temperature control point (temperature below the set temperature) has been passed, and if it has not passed, a constant power is applied to the heater 12 in step 35.
energize. If it passes, in step 32, the third
It is determined whether the temperature control point (temperature equal to or higher than the set temperature) has been passed, and if it has not passed, constant power is continued to be supplied to the heater 12 in step 35. If it passes, in step 33 the set point is switched from the auto menu to the low temperature of the normal hot plate temperature control point. Next, in step 34, the buzzer 17 is sounded to notify that the auto menu has ended. In step 35, the heater 12 is energized with thermal power at the controlled temperature at that time. After step 35, return to step 21,
Repeat steps 21 to 35. The temperature control points have a relationship of first temperature control point≧third temperature control point≧second temperature control point.

Effects of the Invention As is clear from the above examples, the present invention has the following effects.

(1) Since the time to start cooking can be easily determined and the time to finish cooking is notified, there is no need to check the cooking status during cooking, which improves usability.

(2) If you change the control temperature to constant temperature at the end of cooking,
It can be kept warm without burning.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a hot plate control device according to an embodiment of the present invention, FIG. 2 is a specific circuit diagram of FIG. 1, and FIG. 3 is a flowchart of a microcomputer. 1... Temperature setting means, 2... Heater, 3...
Temperature sensor, 4... Notification means, 5... Storage means, 6... Control means.

Claims (1)

[Claims] 1. A heater embedded in the plate that heats the food, a temperature sensor that measures the temperature of the plate, a temperature setting device that measures the control temperature of the plate, a notification device that notifies you at the start and end of cooking, and the plate. A predetermined setting is performed by the storage means storing the control process of the temperature setting means and the temperature setting means, and when the control temperature is reached, it is outputted to the notification means, the temperature of the plate is controlled to the set temperature, and during this time the temperature of the plate is A control device for a pot plate comprising: control means for controlling the pot plate to output an output to the notification means when the temperature has decreased to a predetermined value, and then to automatically change the set temperature when the temperature has risen to a predetermined value.