JP2563439B2 - Electric heating cooker - Google Patents

Description

TECHNICAL FIELD The present invention relates to an electric heating cooker such as an electric cooking heater used in general households.

2. Description of the Related Art In recent years, with a timer device, an electric heating preparation device having a structure in which the power supply to an electric heating element is cut off after a certain period of time has been made. Since these may heat up and ignite when left in an energized state with a pot placed on them, a timer device cuts off the energization to the electric heating element after a predetermined time has elapsed. It was done like this.

An example of an electric heating cooker having this type of timer device is shown in FIG. In FIG. 3, 1 is an electric heating element, 2 is an on / off means consisting of a triac connected in series to the electric heating element 1, 3 is a duty factor setting means, 4 is a duty factor display means, and 5 is A timer device 6 is a driving means of the on / off means 2.

In the above structure, the user sets the duty ratio by means of the duty ratio setting means 3 and energizes the electric heating element 1 for cooking. During this time, the timer device 5 operates, and when a fixed time (about 60 minutes) has elapsed, the operation of the driving means 6 is stopped and the electric power supply to the electric heating element 1 is automatically cut off.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-described conventional configuration, after a certain period of time (about 60 minutes) has passed, the electric heating element 1 is automatically cut off from the power supply. In a time-consuming dish, the input switch had to be turned on every time the power was cut off, which was extremely inconvenient.

An object of the present invention is to provide an electric heating cooker that solves such problems.

Means for Solving the Problems In order to solve the above problems, the present invention provides an electric heating element,
ON / OFF means connected in series to the electric heating element,
Setting means for setting the energization rate of the electric heating element, display means for displaying the energization rate set by the setting means, a timer device, and variable means for varying the set time of the timer corresponding to the set energization rate. The setting time of the timer device changes according to the energization rate, and the energization to the electric heating element is cut off when the set time elapses.

Function According to the above configuration, the timer setting time is changed according to the duty ratio so that the timer setting time is shortened when the duty ratio is high and the timer setting time is lengthened when the duty ratio is low. Therefore, even if you cook stewed food, you can cook for a long time without turning the switch on again, and the temperature tends to rise when the electrical conductivity is high, but in this case,
Since the timer setting time is short, safety is ensured.

Example Hereinafter, one example of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a block diagram of an electric heating cooker showing an embodiment of the present invention. In FIG. 1, 7 is an electric heating element and 8 is an ON / OFF means for the electric heating element 7. , Triac. Reference numeral 9 is a setting means for setting the duty ratio of the electric heating element 7, 10 is a means for displaying the duty ratio set by the setting means 9, 11 is a timer device, and 12 is a timer setting time corresponding to the set duty ratio. The variable means 13 for varying the temperature control means 13 is a drive means for driving the on / off means 8 of the electric heating element 7.

FIG. 2 is a flow chart showing the operation of the electric cooker according to the embodiment of the present invention by the microcomputer. In FIG. 2, the first step is to receive the start switch in the input standby state. Move to the next step. The second step is a step of setting the energization rate of the electric heating element by the input switch, the third step is a step of storing and displaying the set energization rate, and the fourth step is the time of the timer according to the value of the set energization rate. In the setting step, t is set by t = 60 × 3 / n in this embodiment. Therefore, the duty ratio is 1 (20%), 2 (30%), 3
(40%), 4 (50%), 5 (75%), 6 (100%) of each conduction rate is set as 180 minutes, 90 minutes, 60 minutes, 45 minutes, 36 minutes, 30 minutes, respectively. It The fifth step is a step of driving the on / off means 8 composed of a triac connected in series to the electric heating element 7, the sixth step is a step of measuring an operating time, the seventh step is a step of accepting a change in the duty ratio,
The eighth step is a step of judging whether or not a predetermined time has passed. When the predetermined time has passed, the operation of the on / off means 8 comprising the triac is stopped in the ninth step and the operation returns to the standby state. On the other hand, if the predetermined time has not been exceeded, the process returns to the fifth step.

EFFECTS OF THE INVENTION As is clear from the description of the above embodiments, according to the present invention, the set time of the timer device is changed according to the energization rate of the electric heating element. For example, the energization rate is high. The time set for the timer is shortened, and the time set for the timer is set longer when the energization rate is low. Even for cooking, you can cook for a long time without turning the switch on again, and as a result, you can improve the usability and the temperature easily rises when the duty ratio is high, but in this case, set the timer. Since the time is short, safety is ensured.

[Brief description of drawings]

FIG. 1 is a block diagram of an electric heating cooker showing an embodiment of the present invention, FIG. 2 is a flow chart showing the operation of a microcomputer in the electric heating cooker, and FIG. 3 is an example of a conventional electric heating cooker. It is a block diagram showing. 7 ... Electric heating element, 8 ... On / off means of electric heating element, 9 ... Electrification rate setting means of electric heating element, 10 ... Electrification rate display means, 11 ... Timer device, 12 ... Timer time varying means, 13 ... Driving means for on / off means.

Claims (1)

(57) [Claims] 1. An electric heating element, ON / OFF means connected in series to the electric heating element, setting means for setting a duty factor of the electric heating element, and a duty factor set by the setting means. It has a display means, a timer device, and a variable means for varying the set time of the timer corresponding to the set energization rate, and the set time of the timer device is changed and set in correspondence with the energization rate. The electric heating cooker is characterized in that the electric power to the electric heating element is cut off after a lapse of time.