JPH04214124A - Microwave oven - Google Patents

Abstract

PURPOSE:To additionally cook a material to be heated, which is placed and heated in a heating chamber, by only setting time, as necessary, after the material is cooked, so as to finish the cooking according to user's preference. CONSTITUTION:A cooking time is inputted into a control means 13 for operating a heating means 2 by manipulating a cooking time setting key 4 within a predetermined period of time (for example, 3 minutes) after the finish of cooking and, when the cooking is restarted by manipulating a starting key 5, the heating means 2 is operated in the cooking sequence before the finish of cooking, thereby carrying out the additional cooking.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-frequency heating device that detects the state of an object to be heated based on the humidity in a heating chamber and controls the heating of a heating means.

0002

2. Description of the Related Art In recent years, high-frequency heating devices are required to be easy to use and capable of cooking objects to be heated to a finish according to the user's preference.

Conventionally, this type of high-frequency heating device has generally had a configuration as shown in FIG. The configuration will be explained below.

As shown in the figure, a heating chamber 1 has an object to be heated (not shown) placed therein, and is heated by a heating means 2 such as a magnetron or a heater. The cooking menu setting key 3 sets the cooking menu for the object to be heated. The cooking time setting key 4 sets the cooking time of the object to be heated. Start key 5 instructs to start cooking. The humidity sensor 6 detects the humidity in the heating chamber 1 to detect the cooking state of the object to be heated. The microcomputer 7 includes a cooking setting means 8 and a control means 9.
The cooking setting means 8 inputs the setting input of the cooking menu setting key 3 and the setting input of the cooking time setting key 4, sets a cooking sequence according to each setting input, and inputs it to the control means 9. When the control means 9 receives an instruction to start cooking from the start key 5, it controls the heating means 2 based on the cooking sequence of the cooking setting means 8, and at the same time inputs the detection output of the humidity sensor 6 to control the heating means 2. .

In the above configuration, the operation will be explained with reference to FIG. 4. After placing the object to be heated in the heating chamber 1 and setting the cooking menu using the cooking menu setting key 3, cooking starts when the start key 5 is turned on. starts, and the control means 9 drives the heating means 2 at the output P1 for 30 seconds. After that, after turning off the heating means 2 for 30 seconds, the output P1 is turned off again.
The heating means 2 is driven for a time T1' until the humidity sensor 6 detects the humidity. Note that the output P1 of the heating means 2 from the start of cooking to the humidity sensor 6 is determined for each cooking menu. When the humidity sensor 6 detects the cooking state, the control means 9 calculates a time T2 based on the heating time T1 (=30 seconds + T1') up to that point, and outputs P2.
The heating means 2 is driven to complete the cooking.

[0006]

[Problems to be Solved by the Invention] In such a conventional high-frequency heating device, the quality of cooking depends on the humidity sensor 6, and the characteristics of the humidity sensor 6 vary depending on the temperature.
There has been a problem in that the quality of the cooking may be insufficient depending on the state of the heating chamber 1 before cooking. As a solution to this problem, there is a method that provides a key for setting the cooking quality to be stronger or weaker, but this still has the problem that it cannot completely respond to the diversity of the cooking performance of the user.

[0007] The present invention solves the above-mentioned problem, and it is possible to perform additional cooking by simply setting the time after the cooking is finished, and to obtain the doneness of the cooking according to the user's preference. The purpose is

[0008]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention has a control means for driving the heating means that inputs the cooking time using a cooking time setting key within a predetermined time after the completion of cooking, and presses the start key. The problem is solved by driving the heating means in the cooking sequence before the end when cooking is started.

[0009]

[Operation] The present invention uses the above-mentioned problem-solving means to enable additional cooking in the cooking sequence before the end of cooking by operating the cooking time setting key and start key as necessary to suit the user's preference after the end of cooking. can.

0010

[Embodiment] An embodiment of the present invention will be described below with reference to FIG. Note that components having the same configuration as those of the conventional example are given the same reference numerals, and description thereof will be omitted.

As shown in the figure, a microcomputer 1
0 has a timer means 11 and a storage means 12,
The timer means 11 starts operating after the completion of cooking, and outputs an output to the control means 13 after a predetermined period of time (for example, 3 minutes) has elapsed. The storage means 12 stores the cooking sequence at least for the predetermined time of the timer means 11.

To explain the operation in the above configuration, when the cooking menu is set using the cooking menu setting key 3 and the start of cooking is instructed using the start key 5, the heating means 2 is heated at the output P1 for 30 seconds as shown in FIG. 2(B). Driven. At this time, the humidity sensor 6 is heated by a heater (not shown) to burn off the dirt on the surface, so as shown in FIG.
The thermistor characteristics are shown in the range of time a. Thereafter, by stopping the power supply to the heater, a state is established in which the humidity in the heating chamber 1 is detected within the range of time b. On the other hand, the heating means 2 is driven for 30 seconds, then stopped for 30 seconds, and then driven again. In this state, the object to be heated rapidly generates steam,
The humidity sensor 6 starts detecting the humidity in the heating chamber 1 from 1 minute and 3 seconds after the start of cooking.The humidity sensor 6 starts detecting the humidity in the heating chamber 1 from 1 minute and 3 seconds after the start of cooking.The humidity sensor 6 starts detecting the humidity in the heating chamber 1 based on the minimum value (Min Hold value). It is determined that steam has been generated, and the output thereof is input to the control means 13, which drives the output of the heating means 2 by P2 for a time T2, and ends the cooking. At this time, the cooking sequence is stored in the storage means 12.

[0013] When the user wants to continue cooking after the cooking is finished, the additional cooking time is set by the cooking time setting key 4 within a predetermined time of the timer means 11, and the additional cooking is started by operating the start key 5. The control means 13 drives the heating means 2 using the stored contents of the storage means 12, that is, the output P2, to perform additional cooking. At this time, the humidity within the heating chamber 1 is detected by the humidity sensor 6, and if the additional time is too long, the additional cooking is forcibly terminated, thereby preventing overheating.

[0014]

As is clear from the above embodiments, according to the present invention, the control means for driving the heating means inputs the cooking time using the cooking time setting key within a predetermined time after the completion of cooking;
When you start cooking with the start key, the heating means is driven in the cooking sequence before the end, so after cooking is finished, you can do additional cooking by simply setting the time, allowing you to cook according to your preference. The quality of the product can be obtained, and the usability can be improved.

[0015] Furthermore, even if the additional cooking time is set too long, additional cooking can be forcibly terminated using the humidity sensor, thereby improving cooking performance.

[Brief explanation of the drawing]

FIG. 1: Block diagram of a high-frequency heating device according to an embodiment of the present invention.

[Figure 2] (A) Time chart of humidity sensor output of the same high frequency heating device (B) Operation time chart of the same high frequency heating device

[Figure 3]
Block diagram of conventional high-frequency heating equipment

[Figure 4] Operation time chart of the same high-frequency heating device

[Explanation of symbols]

1 Heating chamber 2 Heating means 3 Cooking menu setting key 4 Cooking time setting key 5 Start key 6 Humidity sensor 13 Control means

Claims (1)

[Claims] 1. A heating chamber for placing an object to be heated, a heating means for heating the heating chamber, a cooking menu setting key for setting a cooking menu for the object to be heated, and a cooking time for the object to be heated. A cooking time setting key to set, a start key to instruct to start cooking, a humidity sensor to detect the humidity inside the heating chamber, and a cooking menu set by inputting the output of the humidity sensor and using the cooking menu setting key. or control means for driving the heating means based on the cooking time set by the cooking time setting key, and the control means inputs the cooking time using the cooking time setting key within a predetermined time after cooking is completed, and A high-frequency heating device configured to drive the heating means in a cooking sequence before finishing when cooking is started with a start key.