JPH05164328A - Heating cooker - Google Patents

Abstract

PURPOSE:To simplify and facilitate selection of heating conditions for a substance to be heated in a heating cooker such as a microwave oven. CONSTITUTION:A heating cooker comprises a recognizing sensor 11 to recognize an accessory for cooking placed in a heating chamber 2, a means 16 to display a heating condition based on the recognition result of the recognizing sensor 11, a means 17 to select a displayed heating condition, and a means 8 to heat a food 3 according to the selected heating condition. Since the accessory for cooking placed in the heating chamber 2 is recognized and only a heating condition corresponding to the accessory is displayed, and a necessary heating condition can be selected from the display, this constitution simplifies and facilitates selection of the heating condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating cooker such as a microwave oven, and more particularly, it recognizes an accessory for cooking placed in a heating chamber and automatically determines heating conditions based on the result. The present invention relates to a heating cooker designed to be displayed.

[0002]

2. Description of the Related Art In a conventional heating cooker of this type, as shown in FIG. 8, an openable door 1 is opened, and an item to be cooked 3 is placed in a cooking chamber 2 such as a glass rotary plate 4. After placing on top and closing the door 1, rough heating conditions, for example,
Select a switch for reheating, cooking, oven, grill, thawing, etc. from the display switch 5, and select the heating condition 6 displayed in more detail, for example, in the case of an oven, select a pie, cookie, etc., and then press the cooking start switch 7. By operating, a magnetron (not shown), a heater 8 and the like were operated to heat and cook.

[0003]

However, in the above-mentioned structure, among the many heating conditions displayed,
There has been a problem that a very troublesome and complicated operation of selecting a target heating condition a plurality of times is required. The present invention is
In order to solve the above-mentioned conventional problems, the presence or absence of accessories for cooking such as a glass rotary plate, a metal rotary plate, and a metal square plate is recognized, and a limited number of limited heating conditions based on the recognition result. The purpose of the present invention is to provide a heating cooker which makes it easy and easy to select a desired heating condition by displaying only the display.

[0004]

In order to solve the above problems, a heating cooker according to the present invention provides a recognition sensor for recognizing a cooking accessory placed in a heating chamber and a recognition result of the recognition sensor. A door that can be opened and closed, including a unit that displays a heating condition based on the above, a unit that selects the displayed heating condition, and a unit that heats the food stored in the heating chamber according to the selected heating condition. It has a configuration with.

[0005]

With this configuration, the heating cooker according to the present invention has the accessory for cooking placed in the heating chamber by the recognition sensor.
For example, it is possible to recognize a rotating plate made of glass or the like used for reheating or cooking, a metal rotating plate for an oven, a metal square plate for an oven / grill, or the like. Therefore, only a limited number of limited heating conditions corresponding to the recognition result can be displayed, and the selection of heating conditions becomes very easy.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

Example 1 FIG. 1 is a front sectional view of a heating cooker according to the present invention, in which the same components as in the conventional example are designated by the same reference numerals. Reference numeral 9 is a magnetron for heating and cooking the food 3, and reference numeral 9'is an electric component, which is not directly related to the present invention, and therefore its details are omitted. Reference numeral 10 is a metal dish holder for placing the glass rotating tray 4 and the like, and 11 is a recognition for recognizing an accessory for cooking according to the present invention, which has a built-in motor for rotating the metal tray holder 10. A weight sensor as a sensor is shown.
FIG. 2 shows a block diagram of the control circuit. Reference numeral 13 denotes a control unit including a microcomputer and its peripheral circuit, and the control unit 13 is connected to a recognition unit 14, a heating unit 15, a display unit 16 and a selection unit 17. For example, by the recognition unit 14, an accessory for cooking placed in the heating chamber,
When a glass or metal rotating dish is recognized,
Based on the recognition result, the control unit 13 operates to display a small number of limited heating conditions on the display unit 16.
Therefore, the user selects from the display results of the display unit 16 via the selection unit 17. Based on this selection result, the control unit 13 operates the heating unit 15 to operate the heating means such as a magnetron and a heater.

FIG. 3 shows an enlarged view of a main part when the recognition sensor is composed of a weight sensor. Figure 3 (a) shows
A case where a food 3a such as vegetables is placed on a glass rotary plate 4 having a weight of about 1 kg set on a metal plate holder 10 in the cooking chamber 2 is shown. FIG. 3B shows a case where the metal rotating tray 21 having a weight of about 750 g is set on the metal tray holder 10 in the cooking chamber 2 and the food 3b such as sponge cake is placed. FIGS. 4A and 4B show changes over time in the output of the weight sensor 11 in conjunction with the opening and closing of the door. 22 in FIG.
Indicates a weight change when the food 3a such as vegetables is placed on the glass rotary plate 4, 22a indicates a weight of about 0 kg when the door is opened, 22b indicates the food 3a such as vegetables, and the door is The weight when closed is shown. Reference numeral 23 in FIG. 2B shows a weight change when the food 3b such as a sponge cake is placed on the metal rotary plate 21, and 23a indicates a weight of about 0 kg when the door is opened.
The weight drop 23b indicates the weight reduction when the glass rotary tray 4 is removed, and the reference numeral 23c indicates the metal tray holder 1
0 shows the weight recovery when the metal rotary pan 21 is set, and 23d shows the weight change when a sponge cake (about 600 g) put in a cake mold is placed on the metal rotary pan 21. ing.

As shown in FIG. 4, by detecting the change in weight from the time the door is opened until the door is closed,
The state on the metal dish tray 10 is recognized in detail, and the dish type can be discriminated.

FIG. 5 shows the relationship between the dish type and the heating conditions thus determined. From the figure, in discriminating dish type,
For example, when the glass rotary dish 24 is determined, the heating conditions include warming (reheating) 25, thawing 26, cooking (preparing vegetables and the like) 27, and the like. Further, when it is determined that it is the metal round plate 27, the heating conditions are displayed such as the pie 29, the pizza 30, and the cake 31.

Embodiment 2 FIG. 6 shows an enlarged view of a main part when the recognition sensor is composed of a limit switch. 32a, 32b, 32
Reference characters c respectively denote limit switches for recognizing the metal rectangular plate 33, which are installed on the upper, middle and lower side walls 32 of the heating chamber. For example, when the metal square plate 33 is set on the upper stage, the limit switch 31a operates, and the metal square plate 3
It is recognized that 3 is set in the upper row. In this way, not only the presence or absence of the metal square plate 33 but also the set position is recognized. Combined with the results shown in Example 1, the dish type and the dish position are recognized.

FIG. 7 shows the relationship between the dish type and the heating conditions thus determined. From the figure, in discriminating dish type,
If the metal square plate is set on the upper stage 34, it will be displayed as gratin 35, hamburger steak 36, foil baking 37, etc. If the metal square plate is set on the middle stage 38, it will be cookie 39, shoe. 40, Eclair 41, etc. are displayed, and when the metal square plate is set in the lower stage 4
If 2, then fruit cake 43, butter cake 44,
The chocolate cake 45 or the like is displayed. When it is determined that there is no plate 46, the heating conditions that require preheating, such as bread 47, roll cake 48, and madeleine 49, are displayed.

Further, if the recognition sensor is constructed by using both the weight sensor and the limit switch, in the conventional case, the target heating condition can be selected from many displayed heating conditions of 25 to 49. I had to choose,
With such a configuration, the plate type and the plate position are automatically determined. For example, in the case of the metal round plate 28, three limited heating conditions such as pie 29, pizza 30, and cake 31 are set. Only, for example, is lit or blinked. If the metal square plate is set on the upper stage 34, then the gratin 35, the hamburger 36, the foil baking 3
It becomes a limited display such as 7, and it becomes very easy to select the desired heating condition.

It should be noted that the display of these heating conditions after recognizing the cooking accessories, which has been described in detail above, indicates that the door should be closed in order to prevent the operator from forgetting to press the button, erroneous operation, or idle operation. After that, the display may be reset for a certain period of time, for example, about 1 to 3 minutes, and then reset.

[0015]

As described above, according to the cooking device of the present invention, the following effects can be obtained. (1) The accessory accessory for cooking can recognize the accessory accessory for cooking placed in the heating chamber. Therefore, only a small number of limited heating conditions corresponding to the recognition result can be displayed, and the selection of heating conditions is greatly simplified. (2) Since the accessory accessory for cooking can recognize the accessory accessory for cooking placed in the heating chamber, if the user uses an accessory accessory for cooking which is incorrect in cooking, Since the heating conditions intended by the user are not displayed, an effect of preventing erroneous cooking in advance can be expected.

[Brief description of drawings]

FIG. 1 is a front sectional view of a heating cooker according to an embodiment of the present invention.

FIG. 2 is a block diagram of a control circuit of the same embodiment.

FIG. 3 (a) is a sectional view of an essential part of the heating cooker according to the embodiment shown in FIG. 1, and (b) is a sectional view of an essential part of the heating cooker according to the embodiment shown in FIG.

4A is a characteristic diagram of a weight sensor corresponding to FIG. 3A, and FIG. 4B is a characteristic diagram of a weight sensor corresponding to FIG. 3B.

FIG. 5 is a diagram showing the relationship between cooking accessories and heating conditions.

FIG. 6 is a sectional view of a main part of a heating cooker according to another embodiment of the present invention.

FIG. 7 is a diagram showing a relationship between a cooking accessory, its installation position, and heating conditions.

FIG. 8 is a partially cutaway front view of a conventional heating cooker.

[Explanation of symbols]

 1 Door 2 Heating Chamber 3 Food 8 Means for Heating (Heater) 9 Means for Heating (Magntron) 11 Recognition Sensor (Weight Sensor) 16 Means for Displaying (Display) 17 Means for Selecting (Selecting)

Claims (5)

[Claims] 1. A heating chamber having a front door that can be opened and closed,
A recognition sensor for recognizing an accessory for cooking placed in the heating chamber, a means for displaying a heating condition based on a recognition result of the recognition sensor, a means for selecting the displayed heating condition, and the selected one. A cooking device that operates according to the heating conditions and that heats the food stored in the heating chamber. 2. The cooking device according to claim 1, wherein the recognition sensor comprises a weight sensor. 3. The cooking device according to claim 1, wherein the recognition sensor comprises a limit switch. 4. The heating cooker according to claim 1, wherein the recognition sensor includes a weight sensor and a limit switch. 5. The heating cooker according to claim 1, wherein the means for displaying the heating condition operates in conjunction with opening and closing of the door, and displays for a certain period of time after the door is closed.