JP2012000229A - Cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cooker for determining weight of an object to be cooked inside a grill cabinet.SOLUTION: The cooker includes: a body 1 including a top plate 2 on which a cooking container 10 is placed; the grill cabinet 17 provided in the body 1 and includes an open front for putting in and out the object 32 to be cooked; grill heating means provided inside the grill cabinet 17 and heats the object 32 to be cooked; weight detection means including a plurality of weight sensors 5 and detects weight of the body 1; and control means of controlling the grill heating means. The control means determines weight of the object 32 to be cooked inside the grill cabinet 17, based on a change in a detection value of the weight detection means, and controls at least one of heating time, heating power, and a heating pattern by the grill heating means according to the weight of the object 32 to be cooked.

Description

  The present invention relates to a heating cooker.

  In the prior art, a plurality (three or four) of weight detecting means for detecting the weight of the top plate on which the object to be heated is placed are provided between the main body case and the top plate and installed on the top plate. There is one that detects the weight, placement position, and completion of the object to be heated (see, for example, Patent Documents 1 and 2).

  In addition, when weight detection is not used, there is one that performs heating control by estimating the amount of an object to be heated from a temperature change (see, for example, Patent Document 3).

JP 2006-073347 A JP 2006-253007 A JP-A-7-301426

In the techniques described in Patent Documents 1 and 2, the weight of the cooking container (including the cooked food) placed on the top plate and the weight of the food to be cooked in the grill provided in the main body are identified. There was a problem that it was not possible.
For this reason, there existed a problem that the grill heating control according to the weight of the to-be-cooked thing in a grill warehouse could not be performed.

  In the technique described in Patent Document 3, the amount of load is estimated from the rate of change of the temperature inside the grill, and heating control is performed. However, the rate of temperature change is affected by the weight of the food to be cooked, the initial temperature in the grill, the input power, etc., so the load cannot be estimated correctly, and the food to be cooked is overheated or burned. There was a problem that cooking failures due to lack occurred.

This invention is made | formed in order to solve the above subjects, and obtains the heating cooker which can obtain | require the weight of the to-be-cooked item in a grill warehouse.
Moreover, the cooking device which can discriminate | determine the weight of the cooking container mounted in the top plate, and the weight of the to-be-cooked thing in a grill warehouse is obtained.
Moreover, the heating cooker which can perform the heating control according to the weight of the to-be-cooked object in a grill warehouse is obtained.

  A heating cooker according to the present invention includes a main body having a top plate on which a cooking container is placed, a grill box provided in the main body and having a front surface open so that food can be taken in and out, and provided in the grill box. And a grill heating means for heating the object to be cooked, a weight detection means for detecting the weight of the main body having a plurality of weight sensors, and a control means for controlling the grill heating means. Is based on a change in the detection value of the weight detection means, obtains the weight of the food to be cooked in the grill cabinet, and according to the weight of the food to be cooked, heating time by the grill heating means, heating power, and It controls at least one of the heating patterns.

  The present invention obtains the weight of the food to be cooked based on the change in the detection value of the weight detection means, and according to the weight of the food to be cooked, at least the heating time, the heating power, and the heating pattern by the grill heating means. Control one. For this reason, the weight of the to-be-cooked thing in a grill warehouse can be calculated | required. Moreover, the heating control according to the weight of the to-be-cooked thing in a grill warehouse can be performed.

It is a perspective view which shows typically the induction heating cooking appliance which concerns on Embodiment 1. FIG. It is a front view which shows typically the induction heating cooking appliance which concerns on Embodiment 1. FIG. 2 is an exploded perspective view schematically showing the induction heating cooker according to Embodiment 1. FIG. It is a figure which shows the example of installation of the induction heating cooking appliance which concerns on Embodiment 1. FIG. 2 is a cross-sectional view schematically showing the structure of the weight sensor 5 according to Embodiment 1. FIG. It is a cross-sectional view explaining the grill structure of the induction heating cooking appliance which concerns on Embodiment 1. FIG. It is a sectional side view explaining the grill structure of the induction heating cooking appliance which concerns on Embodiment 1. FIG. 3 is a flowchart showing a weight detection operation according to the first embodiment. 6 is a diagram for explaining a calculation example of a placement position according to Embodiment 1. FIG. It is a figure explaining the identification determination of the mounted material which concerns on Embodiment 1. FIG. It is a figure which shows the relationship between the weight of the to-be-cooked object 32 which concerns on Embodiment 1, and heating time. It is a sectional side view explaining the grill structure of the induction heating cooking appliance which concerns on Embodiment 2. FIG. FIG. 10 is a side sectional view showing an open state of grill door 23 according to Embodiment 3. It is a figure explaining the identification determination of the mounted material which concerns on Embodiment 3. FIG. It is a perspective exploded view which shows typically the induction heating cooking appliance which concerns on Embodiment 5. FIG. It is a cross-sectional view explaining the grill structure of the induction heating cooking appliance which concerns on Embodiment 5. FIG. It is a cross-sectional view explaining the grill structure of the induction heating cooking appliance which concerns on Embodiment 6. FIG. It is a figure which shows the relationship between the weight of the to-be-cooked item 32 which concerns on Embodiment 6, and the time until a heating end. It is a figure which shows the freezing determination threshold value based on Embodiment 7. FIG. It is a perspective view which shows typically the induction heating cooking appliance which concerns on Embodiment 9. FIG.

Hereinafter, an embodiment in which a heating cooker of the present invention is applied to an induction heating cooker will be described with reference to the drawings.
In addition, this invention is not restricted to this, For example, the heating cooker which uses gas as a heat source may be sufficient, and the heating cooker which uses heating bodies, such as an electrical resistor, as a heat source may be sufficient.

Embodiment 1 FIG.
FIG. 1 is a perspective view schematically showing the induction heating cooker according to the first embodiment.
FIG. 2 is a front view schematically showing the induction heating cooker according to the first embodiment.
FIG. 3 is an exploded perspective view schematically showing the induction heating cooker according to the first embodiment.
FIG. 4 is a diagram illustrating an installation example of the induction heating cooker according to the first embodiment.
1 to 4, the main body 1 of the induction heating cooker includes a top plate 2 on which a cooking container 10 into which an object to be heated 9 is put is placed, and a casing in which a flange 3 is formed along the upper edge. 4 and the top plate 2 and the flange 3 are in contact with each other. Inside the housing 4, heating coils 7 a, 7 b, 7 c for heating the cooking container 10 placed on the top plate 2 immediately below the top plate 2 (hereinafter referred to as “heating coil 7” when not distinguished). And control means (not shown) for controlling the heating coil 7 are arranged. On the surface of the top plate 2, a circular installation position indicator 20 is printed for the purpose of indicating a position where the heating coil 7 in the main body 1 is disposed. In addition, on the upper front side of the top plate 2, a display unit 12 that displays information such as an input operation such as a cooking menu and a state of set heating power, and an operation unit 11 that inputs an operation related to heating control are provided. Yes.

  As shown in FIGS. 2 and 4, the housing 4 is inserted into the opening of the kitchen table 6, and the flange 3 is locked around the opening so as to seal it. The weight sensors 5a, 5b, 5c, and 5d (hereinafter collectively or collectively referred to as “weight sensors 5”) that constitute the weight detection means are arranged to face the four corners of the opening. Therefore, the flange 3 (same as the main body 1) is supported by the weight sensor 5. That is, the weight sensor 5 is sandwiched between the lower surface of the flange 3 and the shelf board of the kitchen table 6 when the main body 1 is installed in the opening of the kitchen table 6, and the entire main body 1 (the top plate 2 and the housing 4). Etc.) is preloaded upward. Therefore, while acting as a weight detection function, since installation is easy and the main body 1 does not protrude from the kitchen table, the design of the kitchen table is ensured and the usability is also good. At this time, the weight sensor 5 may be fixed to the flange 3 in advance, or may be placed on the kitchen table so as to face the four corners of the opening of the kitchen table 6. Therefore, the degree of freedom for arranging the weight sensor 5 increases.

FIG. 5 is a cross-sectional view schematically showing the structure of the weight sensor 5 according to the first embodiment.
The structure of the weight sensor 5 using a strain gauge will be briefly described with reference to FIG. 5, but the present invention limits the structure of the weight sensor 5 constituting the weight detection means to the following example. is not.
In FIG. 5, the gap between the side end surface of the top plate 2 and the side end surface of the flange 3 (formed on the casing 4 that surrounds the entire body 1 from the lower surface) is sealed by a seal member 25. The weight sensor 5 (same as the strain sensor) supports (supports upward) the entire weight of the main body 1 in which the gap is sealed. The weight sensor 5 has an elastic leg 30 having elasticity such as rubber that comes into contact with the shelf board of the kitchen table 6 and receives pressure on the entire bottom surface of the leg.

  Therefore, when a load is applied to the upper portion of the weight sensor 5, the load receiving portion 31 provided on the upper portion of the weight sensor 5 is pushed downward, and the elastic body 26 that is elastically deformed is distorted. Then, due to the strain generated in the strain generating body 26, the electric resistance value of the strain gauge 28 attached to the lower surface of the strain generating body 26 changes and the current value output from the strain gauge 28 changes. An output signal obtained by converting the change in value into “load (corresponding to weight)” is output from the substrate 29. Further, when the load applied to the upper surface of the weight sensor 5 is reduced (the load is removed), the leaf spring 27 is set so that the load receiving portion 31 returns to the reference position and the strain of the strain generating body 26 is reduced (eliminated). Pushes up the load receiving portion 31.

  After the main body 1 is installed on the kitchen table 6, the weight sensors 5 a to 5 d when a predetermined time elapses without placing any object on the main body 1 and without pressing down or lifting the top plate 2. The output signal from becomes stable. That is, when the output signals (corresponding to loads) output from the weight sensors 5a to 5d are summed (summed) by a control means (not shown) provided inside the main body 1, the total is calculated as the main body 1. Therefore, the weight is stored in a storage unit (not shown) provided inside the main body 1 as a “zero point” that is an initial value of the weight of the main body 1. Then, when the weight of the main body 1 increases based on the “zero point” by the operation described later, the cooking container 10 on the top plate 2 is changed based on the amount of change in the output signals of the weight sensors 5a to 5d. It is possible to obtain the weight and the weight of at least one of the weight of the cooking object in the grill 17 described later. That is, in the first embodiment, the entire main body 1 is provided with the weight sensor 5 at the lower part of the flange 3 of the casing 4 and is preloaded upwardly, so that the grill cabinet provided at the lower part inside the main body 1 is provided. The weight within 17 can also be detected. Details will be described later.

FIG. 6 is a cross-sectional view illustrating the grill structure of the induction heating cooker according to the first embodiment.
FIG. 7 is a side sectional view for explaining the grill structure of the induction heating cooker according to the first embodiment.
As shown in FIGS. 1 to 3, 6, and 7, the main body 1 is provided with a grill box 17 whose front surface is opened so that an object to be cooked 32 such as fish can be taken in and out. A receiving tray 18 serving as a water or oil receiver is provided at the lower portion of the grill cabinet 17, and a shelf network 19 on which the cooking object 32 is placed is disposed at the upper portion of the receiving tray 18. The tray 18 and the shelf network 19 constitute a “grill dish” in the present invention. In addition, in order to heat the cooking object 32 placed on the shelf network 19, a heat source such as an upper surface heater 15 and a lower surface heater 16 are provided at the upper portion of the grill cabinet 17. The upper surface heater 15 and the lower surface heater 16 are composed of, for example, a sheathed heater or the like, and constitute the “grill heating means” in the present invention. Moreover, the guide rail 14 which supports the saucer 18 so that insertion / extraction in the grille warehouse 17 is possible is provided in the both sides | surfaces of the grill warehouse 17, and the saucer 18 is installed on the guide rail 14, and a user cooks 32 is easily taken out. In addition, a grill door 23 is provided on the front surface of the grill cabinet 17, and a viewing window 24 is provided on the grill door 23 so that the inside of the grill cabinet 17 can be seen. A grill grip 22 is provided on the forefront of the grill door 23 for ease of use. Further, exhaust air such as smoke discharged during heating inside the grill cabinet 17 is exhausted from an exhaust port 13 provided at the back of the main body 1.

  With the configuration as described above, the control unit obtains the weight of the cooking object 32 in the grill 17 based on the change in the detection value of the weight sensor 5. And according to the weight of the to-be-cooked object 32, at least one of the heating time, heating power, and heating pattern in grill heating control is controlled. Hereinafter, the operation of the first embodiment will be described with reference to the drawings, divided into a weight detection operation and a grill heating control operation.

(Weight detection operation)
FIG. 8 is a flowchart showing the weight detection operation according to the first embodiment.
Hereinafter, each step of FIG. 8 will be described.

(S101)
First, the control means reads the detection value of each weight sensor 5.

(S102)
The control means determines whether or not there is a change in the read detection value. This variation is determined based on whether or not the total value of each weight sensor 5 has increased from the zero point with reference to the “zero point” that is the initial value of the weight of the main body 1 described above.
If it is determined that there is no change in the detected value, the process returns to step S101, and reading of the detected value is repeated.

  Here, for example, when the cooking container 10 into which the article 9 to be heated is placed is placed on the top plate 2 or when the dish 32 is placed in the grill 17, either one of these ( Hereinafter, the weight of the main body 1 increases due to the weight of the “placement 50”. As a result, the control means determines that the detected value varies, and proceeds to step S103.

(S103)
The control means calculates the position of the center of gravity of the changed weight (the weight of the mounted object 50) based on the relative positions of the plurality of weight sensors 5 with respect to the main body 1 and the detection values of the respective weight sensors 5.
An example of calculating the position of the center of gravity will be described with reference to FIG.

FIG. 9 is a diagram for explaining a calculation example of the placement position according to the first embodiment.
In FIG. 9, the horizontal direction is the X-axis direction, the vertical direction is the Y-axis direction, the weight sensor 5a is located at the origin (0, 0), and the weight sensor 5b installed in the depth direction from the front is the position B (0, Yb). The weight sensor 5c installed in the width direction from the weight sensor 5a is positioned at the position C (Xc, 0), and the weight sensor 5d installed diagonally to the weight sensor 5a is positioned at the position D (Xc, Yb) are arranged respectively.
In FIG. 9, Ma, Mb, Mc, and Md are detected weights (increments) obtained from the amount of change in the detected values of the weight sensors 5a, 5b, 5c, and 5d, respectively.

Since the weight M of the mounted object 50 is the sum of the amount of change in the weight detected from each weight sensor 5, it can be obtained by the following equation.
Total weight of the object 50: M = Ma + Mb + Mc + Md (Formula 1)

At this time, the moment about the axis at the center of gravity position W1 (X1, Y1) of the mounted object 50 is as follows.
Moment about the Y axis of the object 50: X1 · M = Xc · Mc + Xc · Md (Formula 2)
Moment about the X axis of the mounted object 50: Y1 · M = Yb · Mb + Yb · Md (Formula 3)

Therefore, from the above (Expression 2) and (Expression 3), the gravity center position W1 (X1, Y1) of the placement object 50 can be obtained as follows.
Position in the width direction of the object 50: X1 = Xc. (Mc + Md) / M (Expression 4)
Position in the depth direction of the object 50: Y1 = Yb · (Mb + Md) / M (Expression 5)

  From the above (Expression 1) to (Expression 5), the total weight M of the placed object 50 and the gravity center position W1 can be calculated. In the unit systems in (Expression 1) to (Expression 5), the output (weight) is [g] and the distance indicating the position is [mm], but the present invention is not limited to this.

(S104)
Next, based on the position of the center of gravity of the placed object 50, the control means is either the cooking container 10 placed on the top plate 2 or the cooking object 32 in the grill box 17. Determine whether. In the present embodiment, it is determined whether or not the position of the center of gravity of the placement object 50 is within a predetermined range corresponding to the grill storage 17 set in advance.
This predetermined range will be described with reference to FIG.

FIG. 10 is a diagram for explaining identification determination of a placement object according to the first embodiment.
In FIG. 10, as in FIG. 9, the horizontal direction is the X-axis direction and the vertical direction is the Y-axis direction, and the weight sensor 5a is set at the origin position. The predetermined range 100 is set to, for example, a range corresponding to the grill store 17 or a slightly narrower range than the grill store 17. In the example of FIG. 10, the predetermined range 100 sets the X-axis direction to a range of X2 to X3 and the Y-axis direction to a range of 0 to Y3.

  Here, the cooking container 10 on the top plate 2 is placed in the vicinity of the installation position indicator 20 displayed on the top plate 2 corresponding to the heating coil 7. That is, the position of the center of gravity of the cooking container 10 is a peripheral position around the center of the heating coils 7a to 7c. For this reason, by setting the predetermined range 100 to a range corresponding to the grill warehouse 17, the placement object 50 is placed on the installation position indicator 20 on the top plate 2 or inside the grill warehouse 17. It is possible to identify whether it is placed on the. Note that the predetermined range 100 is set so as not to include the center of the heating coil 7 and the vicinity thereof even when the range of the grill 17 and the range of the installation position indicator 20 overlap, such as in the case of a wide grill. Thus, the placed object 50 can be identified.

(S105)
In step S104, when it is determined that the center of gravity position of the changed weight (the weight of the mounted object 50) is within the predetermined range 100, the control means causes the mounted object 50 to be placed in the grill box 17. It judges that it is the cooking thing 32, makes the total weight M the weight of the to-be-cooked thing 32, and complete | finishes a weight detection operation | movement.

(S106)
In step S104, when it is determined that the center of gravity position of the changed weight (the weight of the placement object 50) is not within the predetermined range 100, the control unit places the placement object 50 on the top plate 2. 10 (including the object to be heated 9), the total weight M is the weight of the cooking container 10 (including the object to be heated 9), and this weight is used as a new reference to return to S101 to check the change in weight. To do.

  In the above example, whether the cooking container 10 placed on the top plate 2 or the object to be heated 32 placed in the grill 17 is determined based on the center of gravity of the changed weight (the weight of the placed object 50). However, the case where the range corresponding to the installation position sign 20 and the grille 17 overlaps will be described.

  When a change weight is observed, a drive (heating) command corresponding to the overlapping heating coil is given by the user after the change, or a weak current is supplied to the overlapping heating coil, and the amount of current When it is determined that the cooking container 10 is present by load determination for checking the presence / absence of the cooking container 10 by voltage or voltage, the cooking container 10 (including the object to be heated 9) whose weight change is placed on the top plate 2 is determined. Judge. Further, when the changed weight is observed, when the grilling operation is performed by the user after the change, it is determined whether the changed weight is the heated object 32 placed in the grill cabinet 17.

(Grill heating control)
Next, grill heating control according to the weight of the object to be cooked 32 will be described.
FIG. 11 is a diagram showing the relationship between the weight of the item to be cooked 32 and the heating time according to the first embodiment.
FIG. 11A shows the relationship between the weight of the cooking object 32 and the heating time when the fish grill menu is selected as an example of the grill cooking menu, and FIG. The relationship between the weight of the to-be-cooked item 32 at the time of menu selection and heating time is shown. In the control means, for example, information on the heating time corresponding to the weight of the cooking object 32 for each cooking menu as shown in FIG. 11 is stored in advance. Note that the information may be stored in a storage unit (not shown).

  The user, for example, places an object to be cooked 32 such as fish in the grill cabinet 17, and then operates the operation unit 11 to start grill heating control. The control means starts heating by the upper surface heater 15 and the lower surface heater 16 in accordance with the grill cooking menu input from the operation unit 11.

  At this time, when the fish grill menu is selected by the operation unit 11, the control unit detects the weight of the cooking object 32 by the weight detection operation. And when it determines with the to-be-cooked item 32 in the grill | zipper warehouse 17, according to the weight of the to-be-cooked item 32, the graph of the grilled fish menu of FIG. Search and determine the heating time. On the other hand, when a warming menu is selected by the operation unit 11, the control means similarly searches the warming menu graph of FIG. 11B to determine the heating time. And a control means operates the upper surface heater 15 and the lower surface heater 16 of the grill warehouse 17, and heats the to-be-cooked item 32 in the grill warehouse 17 for the heating time determined as mentioned above.

  As described above, in the present embodiment, the weight of the object to be cooked 32 is obtained based on the change in the detection value of the weight sensor 5, and the heating time in the grill heating control is controlled according to the weight of the object to be cooked 32. . The weight of the item to be cooked 32 in the grill cabinet 17 can be obtained, and the heating control according to the weight of the item to be cooked 32 in the grill cabinet 17 can be performed. Therefore, the heating time according to the weight of the to-be-cooked object 32 can be set, and the to-be-cooked object 32 can be burnt too much, or the cooking failure by lack of baking can be reduced.

  Further, when the weight of the main body 1 changes, the center of gravity position of the changed weight is obtained based on the relative positions of the plurality of weight sensors 5 with respect to the main body 1 and the detection values of the respective weight sensors 5, and the center of gravity position is the main body 1. Is within the predetermined range 100, the changed weight is set as the weight of the cooking object 32 in the grill 17. For this reason, the weight of the cooking container 10 placed on the top plate 2 and the weight of the cooking object 32 in the grill cabinet 17 can be identified.

  Further, the position in the width direction and the depth direction in the main body 1 are obtained as the center of gravity position, and when the center of gravity position is within the predetermined range 100 of the main body 1, the changed weight is used as the weight of the cooking object 32 in the grill box 17. When the position of the center of gravity is not within the predetermined range 100 of the main body 1, the changed weight is the weight of the cooking container 10 (including the object to be heated 9) placed on the top plate 2. For this reason, the weight of the cooking container 10 placed on the top plate 2 and the weight of the cooking object 32 in the grill cabinet 17 can be identified.

In the example of FIG. 11, the case where the heating time is determined according to the weight of the cooking object 32 has been described. However, the present invention is not limited to this, and the grill heating is performed according to the weight of the cooking object 32. At least one of the heating time, the heating power, and the heating pattern may be controlled. The same effects as described above can be achieved by such control.
For example, the same effect can be obtained even when the heating time is constant and the input power (heating power) to the upper surface heater 15 and the lower surface heater 16 is changed. Moreover, you may change both heating time and input electric power. Moreover, you may make it control the heating pattern according to a cooking menu. Here, the heating pattern means control of ON / OFF timing of the upper surface heater 15 and the lower surface heater 16 set by a cooking menu or the like, and increase / decrease of heating power according to the passage of time.

Embodiment 2. FIG.
In the said Embodiment 1, when the position of the mounting object 50 was in the predetermined range 100 memorize | stored previously, it determined with the mounting object 50 being the to-be-cooked object 32 in the grill | growing warehouse 17. FIG. In the second embodiment, an embodiment will be described in which the amount of change in the weight of the main body 1 from the detection of the open state of the grill door 23 to the detection of the closed state is obtained as the weight of the cooking object 32 in the grill cabinet 17.

FIG. 12 is a side sectional view for explaining the grill structure of the induction heating cooker according to the second embodiment.
As shown in FIG. 12, a switch 41 for detecting the open state and the closed state of the grill door 23 is provided in the grill 17 in the second embodiment. The switch 41 is disposed on the back side of the guide rail 14. When the grill door 23 is closed, the switch 41 is pushed by the guide rail 14 to be turned on, and when the grill door 23 is opened, the switch 41 is turned off. The control means detects the on state or the off state of the switch 41 to detect the open state and the closed state of the grill door 23.
Other configurations are the same as those of the first embodiment, and the same reference numerals are given to the same portions.

With this configuration, in the second embodiment, instead of the weight detection operation (FIG. 8) of the first embodiment, the control means detects the open state of the grill door 23 and then When the closed state is detected, the amount of change in the weight of the main body 1 from the detection of the open state of the grill door 23 to the detection of the closed state is obtained as the weight of the cooking object 32 in the grill cabinet 17.
Thereafter, the grill heating control according to the weight of the object to be cooked 32 is the same as the operation of the first embodiment (FIG. 11).

  As described above, in the present embodiment, the amount of change in the weight of the main body 1 from the detection of the open state of the grill door 23 to the detection of the closed state is defined as the weight of the cooking object 32 in the grill cabinet 17. For this reason, even when the position of the cooking container 10 (including the object 9 to be heated) on the top plate 2 is placed outside the installation position indicator 20, it is determined that the weight of the object 32 to be cooked in the grill 17. This makes it possible to distinguish the weight of the cooking container 10 placed on the top plate 2 and the weight of the cooking object 32 in the grill 17.

Embodiment 3 FIG.
In the said Embodiment 1, when the position of the mounting object 50 was in the predetermined range 100 memorize | stored previously, it determined with the mounting object 50 being the to-be-cooked object 32 in the grill | growing warehouse 17. FIG. In the third embodiment, when the placement object 50 is located outside the main body 1, it is determined that the placement object 50 is the cooking object 32.
The configuration of the third embodiment is the same as that of the first embodiment, and the same reference numerals are given to the same parts.
The following description will focus on the differences in operation from the first embodiment.

FIG. 13 is a side sectional view showing an open state of the grill door 23 according to the third embodiment.
FIG. 14 is a diagram for explaining identification determination of a placement object according to the third embodiment.
As shown in FIG. 13, when placing an object to be cooked 32 in the grill cabinet 17, the user grasps the grill gripping portion 22 of the grill door 23 and pulls it forward, so that the tray 18 supported by the guide rail 14 is supported. The shelf network 19 (hereinafter collectively referred to as “grill plate”) is pulled out of the main body 1. In this state, the user places the food item 32 on the grill pan. When the object to be cooked 32 is placed with the grill pan pulled out of the main body 1 as described above, the position of the placed object 50 is negative as shown in FIG. 14, for example, as shown in FIG. Calculated.

In the third embodiment, when the gravity center position of the placement object 50 is within the predetermined range 100 in step S104 of the weight detection operation (FIG. 8) of the first embodiment, or the gravity center position of the placement object 50 is If it is outside the main body 1, it is determined that the placed object 50 is the object to be cooked 32, and the process proceeds to step S 105. When the center of gravity position of the placement object 50 is outside the predetermined range 100 and the center of gravity position of the placement object 50 is within the main body 1, the placement object 50 is determined to be the cooking container 10 and the process proceeds to step S106. Other operations are the same as those in the first embodiment (FIG. 8).
The grill heating control according to the weight of the object to be cooked 32 is the same as the operation of the first embodiment (FIG. 11).

As described above, in the present embodiment, when the position of the center of gravity is outside the main body 1, the changed weight is set as the weight of the cooking object 32 placed on the grill pan. For this reason, even when the position of the cooking container 10 (including the object 9 to be heated) on the top plate 2 is placed outside the installation position indicator 20, it is determined that the weight of the object 32 to be cooked in the grill 17. The weight of the cooking object 32 in the grill 17 can be obtained.
Moreover, since it is not necessary to provide the switch 41 in the grill cabinet 17, a low-cost heating cooker can be provided.

Embodiment 4 FIG.
In the fourth embodiment, a mode in which the changed weight is obtained as the weight of the cooking object 32 in the grill 17 by an operation instruction from the operation unit 11 will be described.
The configuration of the fourth embodiment is the same as that of the first embodiment, and the same parts are denoted by the same reference numerals.
The following description will focus on the differences in operation from the first embodiment.

In the fourth embodiment, in step S103 of the weight detection operation (FIG. 8) of the first embodiment, only the total weight M of the placement object 50 is obtained by (Equation 1).
Then, instead of the operation in step S104, the control unit determines whether or not an operation of a heating instruction for grill heating is performed from the operation unit 11. When the user operates the operation unit 11 to instruct grill heating, the amount of change in the weight of the main body 1 (total weight M of the mounted object 50) immediately before the operation of the heating instruction is stored in the grill 17. Let it be the weight of the food item 32. When an operation instruction regarding the heating coil 7 is given, the weight of the placed object 50 may be the weight of the cooking container 10 (including the object to be heated 9) on the top plate 2. Other operations are the same as those in the first embodiment (FIG. 8).
The grill heating control according to the weight of the object to be cooked 32 is the same as the operation of the first embodiment (FIG. 11).

As described above, in the present embodiment, when a heating instruction operation for grill heating is performed after the weight of the main body 1 is changed, the amount of change in the weight of the main body 1 immediately before the operation of the heating instruction is calculated. It is set as the weight of the to-be-cooked thing in the warehouse 17. For this reason, even when the position of the cooking container 10 (including the object 9 to be heated) on the top plate 2 is placed outside the installation position indicator 20, it is determined that the weight of the object 32 to be cooked in the grill 17. The weight of the cooking object 32 in the grill 17 can be obtained.
Moreover, since it is not necessary to provide the switch 41 in the grill cabinet 17, a low-cost heating cooker can be provided.

Embodiment 5 FIG.
In the fifth embodiment, as the grill heating means, a plurality of heating units are provided on at least one of the upper side and the lower side in the grill box 17, and heating control is performed according to the position of the cooking object 32 in the grill box 17. A form is demonstrated.

FIG. 15 is an exploded perspective view schematically showing an induction heating cooker according to the fifth embodiment.
FIG. 16 is a cross-sectional view illustrating the grill structure of the induction heating cooker according to the fifth embodiment.
As shown in FIGS. 15 and 16, in the fifth embodiment, an upper surface heater 15a as a heating unit and an upper surface heater 15b are arranged side by side in the width direction in the upper portion of the grill cabinet 17. Yes. In addition, a lower surface heater 16a and a lower surface heater 16b as heating units are arranged in the width direction in the lower part of the grill cabinet 17. The upper surface heaters 15a and 15b and the lower surface heaters 16a and 16b (hereinafter also collectively referred to as “each heater”) are each composed of, for example, a sheathed heater or the like, and constitute the “grill heating means” in the present invention. The control means can independently control the upper surface heaters 15a and 15b and the lower surface heaters 16a and 16b. In the fifth embodiment, a case where two heaters are provided on each of the upper surface and the lower surface will be described. However, the present invention is not limited to this, and only one of the upper surface and the lower surface may be used. You may provide above.
Other configurations are the same as those of the first embodiment, and the same reference numerals are given to the same portions.
Moreover, in this Embodiment 5, the gravity center position and the weight of the to-be-cooked item 32 in the grill 17 are calculated | required similarly to the weight detection operation | movement (FIG. 8) of the said Embodiment 1. FIG.

(Grill heating control)
The control means in the fifth embodiment controls at least one of the heating time, heating power, and heating pattern of each heater based on the position of the center of gravity of the object to be cooked 32 and the relative position of each heater, The heating amount of the heater close to the object 32 is set larger than the heating amount of the heater far from the object 32 to be cooked.
For example, the control means stores information on the coordinate position of each heater in advance, and compares the information with the coordinates of the center of gravity position of the object to be cooked 32 obtained in the weight detection operation (FIG. 8), whereby each heater and the object to be cooked. 32 is obtained.
In the example shown in FIG. 16, it is determined that the position of the object to be cooked 32 is biased in the direction of the upper surface heater 15b and the lower surface heater 16b. In this case, the input power of the upper surface heater 15a and the lower surface heater 16a is reduced or stopped with respect to the upper surface heater 15b and the lower surface heater 16b. Thereby, the heating amount of the heater close to the cooking object 32 can be made larger than the heating amount of the heater far from the cooking object 32.

  As described above, in the present embodiment, the heating amount of the heater close to the object to be cooked 32 is set larger than the heating amount of the heater far from the object to be cooked 32. For this reason, the useless electric power which is not concerned with the heating of the to-be-cooked object 32 can be reduced, and energy saving property can be improved.

Embodiment 6 FIG.
In the said Embodiment 1-5, the form which sets a heating time according to the weight of the to-be-cooked object 32 was demonstrated. In the sixth embodiment, a mode in which grill heating control is performed according to the temperature in the grill 17 and the weight of the cooking object 32 will be described.

FIG. 17 is a cross-sectional view illustrating the grill structure of the induction heating cooker according to the sixth embodiment.
As shown in FIG. 17, the grill 17 in the sixth embodiment is provided with a temperature sensor 33 as temperature detecting means for detecting the temperature in the grill 17. The control means acquires the detection signal of the temperature sensor 33.

FIG. 18 is a diagram illustrating the relationship between the weight of the object to be cooked 32 and the time until the end of heating according to the sixth embodiment.
FIG. 18A shows the relationship between the weight of the object to be cooked 32 when the fish grill menu is selected and the time until the end of heating as an example of the grill cooking menu, and FIG. 18B shows an example of the grill cooking menu. As a result, the relationship between the weight of the cooking object 32 when the menu is selected and the time until the heating is completed is shown. For example, as shown in FIG. 18, information on the time until the end of heating corresponding to the weight of the cooking object 32 for each cooking menu is stored in the control unit in advance.
Other configurations are the same as those of the first embodiment, and the same reference numerals are given to the same portions. Moreover, in this Embodiment 6, the weight of the to-be-cooked item 32 in the grill warehouse 17 is calculated | required by the operation | movement in any of the said Embodiment 1-4.

(Grill heating control)
The control means in the sixth embodiment starts heating by the upper surface heater 15 and the lower surface heater 16 when an operation related to grill heating is performed by the operation unit 11. Next, the control means determines whether or not the temperature in the grill 17 reaches a predetermined temperature by the temperature sensor 33. When the temperature in the grill 17 reaches a predetermined temperature (for example, 300 degrees), for example, referring to a graph stored in advance as shown in FIG. 18, the time until the end of heating is determined according to the weight of the cooking menu and the food item 32. decide. Then, when the time until the end of heating determined as described above has elapsed, the control means stops the upper surface heater 15 and the lower surface heater 16 of the grill cabinet 17 and ends the heating in the grill cabinet 17.

  From the start of heating in the grill chamber 17 until the chamber temperature reaches a predetermined value, heat from the upper surface heater 15 and the lower surface heater 16 is mainly used to raise the chamber atmosphere temperature, It does not contribute to cooking of heated food. In this Embodiment 6, since the time until the completion | finish of a heating is determined according to the weight of the to-be-cooked item 32 after the temperature in the grill | zipper warehouse 17 reaches the temperature which contributes to cooking, more optimal cooking can be performed, Underheating and overheating can be prevented.

Embodiment 7 FIG.
In the seventh embodiment, a description will be given of a mode in which control is performed to increase the amount of heating in the grill 17 when the cooking object 32 is in a frozen state.

FIG. 19 is a diagram showing a refrigeration determination threshold value according to the seventh embodiment.
In the control means, for example, as shown in FIG. 19, information on the refrigeration determination threshold value of the rate of temperature rise in the grill corresponding to the weight of the object to be cooked 32 is stored in advance. In addition, a predetermined determination temperature for determining whether the object to be cooked 32 is in a frozen state is preset in the control means.
Other configurations are the same as those of the sixth embodiment, and the same parts are denoted by the same reference numerals. Moreover, in this Embodiment 7, the weight of the to-be-cooked item 32 in the grill warehouse 17 is calculated | required by the operation | movement in any of the said Embodiment 1-4.

(Grill heating control)
In the seventh embodiment, when an operation related to grill heating is performed by the operation unit 11, the temperature sensor 33 causes the temperature in the grill 17 at the start of heating or a unit from the start of heating to the elapse of a predetermined time. Measure the temperature rise per hour. When the temperature in the grill 17 at the start of heating is equal to or lower than a predetermined determination temperature, or referring to a graph stored in advance as shown in FIG. 19, the control means determines whether the temperature rise value per unit time is the refrigeration determination threshold. When the value is equal to or smaller than the value, it is determined that the object to be cooked 32 is in a frozen state (frozen food). And the heating amount of the upper surface heater 15 and the lower surface heater 16 when it is judged that it is a frozen state is made to increase from the heating amount when it is not a frozen state. For example, when it is determined that the food is frozen, the heating time or the input power integrated value is increased according to the weight.

  Thus, when it determines with it being frozen foodstuff, since the amount of heating is increased, the insufficient heating of the to-be-cooked item 32 can be prevented, and optimal cooking can be performed.

Embodiment 8 FIG.
In the present eighth embodiment, a description will be given of a mode in which calories of the object to be cooked 32 are obtained and calorie value information is displayed.

The control means in the eighth embodiment stores in advance information on the standard calorie value per unit weight for each cooking menu that can be selected by the operation unit 11. Note that the information may be stored in a storage unit (not shown).
Other configurations are the same as those in any of the first to seventh embodiments, and the same parts are denoted by the same reference numerals.

  A control means calculates | requires the weight of the to-be-cooked item 32 in the grill warehouse 17 by the operation | movement in any of the said Embodiment 1-7. Then, according to the grill cooking menu input from the operation unit 11, the information on the standard calorie value per unit weight stored in advance is referred to, and the standard calorie value is multiplied by the weight of the object 32 to be cooked. 32 calorie values are determined. Then, the calorie value is displayed on the display unit 12.

  As described above, in the present embodiment, the calorie value of the object to be heated is obtained based on the selected cooking menu and the weight of the object to be cooked, and the information on the calorie value is displayed on the display means. Can recognize the calorie value of the item to be cooked 32.

Embodiment 9 FIG.
FIG. 20 is a perspective view schematically showing an induction heating cooker according to the ninth embodiment.
In the said Embodiment 1-8, the built-in type induction heating cooking appliance used incorporating in the opening part of the kitchen stand 6 was demonstrated. The present invention is not limited to this, and may be a stationary induction heating cooker arranged on a stove table.
As shown in FIG. 20, the weight sensors 5 a to 5 d constituting the weight detection means are arranged at the four corners on the lower surface of the casing of the main body 1, so that the total weight of the main body 1 is the same as in the first to eighth embodiments. The weight of the cooking container 10 placed on the top plate 2 and the weight of the object to be cooked 32 placed in the grill 17 can be detected.

  1 body, 2 top plate, 3 flange, 4 housing, 5a weight sensor, 5b weight sensor, 5c weight sensor, 5d weight sensor, 6 kitchen table, 7a heating coil, 7b heating coil, 7c heating coil, 9 object to be heated DESCRIPTION OF SYMBOLS 10 Cooking container, 11 Operation part, 12 Display part, 13 Exhaust port, 14 Guide rail, 15 Upper surface heater, 15a Upper surface heater, 15b Upper surface heater, 16 Lower surface heater, 16a Lower surface heater, 16b Lower surface heater, 17 Grill warehouse, 18 Saucer, 19 shelf network, 20 installation position indicator, 22 grill gripping part, 23 grill door, 24 viewing window, 25 sealing member, 26 strain body, 27 leaf spring, 28 strain gauge, 29 substrate, 30 elastic leg, 31 load Receiving part, 32 to-be-cooked object, 33 temperature sensor, 41 switch, 50 Thing.

Claims (10)

A body having a top plate on which the cooking container is placed;
A grill box provided in the main body, the front of which is opened so that food can be taken in and out, and
Grill heating means provided in the grill cabinet for heating the cooking object;
A weight detecting means having a plurality of weight sensors and detecting the weight of the main body;
Control means for controlling the grill heating means,
The control means includes
Based on the change in the detection value of the weight detection means, obtain the weight of the cooking object in the grill,
A heating cooker characterized by controlling at least one of a heating time, a heating power, and a heating pattern by the grill heating means in accordance with the weight of the cooking object. The control means includes
When the weight of the main body has changed, based on the relative position of the plurality of weight sensors to the main body and the detection value of each weight sensor, the center of gravity position of the changed weight is obtained,
The cooking device according to claim 1, wherein when the position of the center of gravity is within a predetermined range of the main body, the changed weight is set as the weight of the cooking object in the grill. The control means includes
As the center of gravity position, a width direction position and a depth direction position in the main body are obtained,
When the position of the center of gravity is within a predetermined range of the main body, the changed weight is the weight of the food to be cooked in the grill cabinet,
The cooking device according to claim 2, wherein when the position of the center of gravity is not within a predetermined range of the main body, the changed weight is set as the weight of the cooking container placed on the top plate. A grill pan on which the food is placed;
A guide rail that supports the grill pan so that it can be taken in and out of the grill cabinet,
The control means includes
The cooking device according to claim 2 or 3, wherein when the center of gravity position is outside the main body, the changed weight is set as the weight of the food to be cooked placed on the grill pan. The grill heating means includes:
At least one of the upper and lower sides in the grill cabinet has a plurality of heating units,
The control means includes
When the weight of the main body has changed, based on the relative position of the plurality of weight sensors to the main body and the detection value of each weight sensor, the center of gravity position of the changed weight is obtained,
Controlling at least one of the heating time, the heating power, and the heating pattern of the plurality of heating units based on the relative positions of the gravity center positions and the plurality of heating units;
The heating cooker according to claim 1, wherein a heating amount of the heating unit close to the cooking object is larger than a heating amount of the heating unit far from the cooking object. A grill door for opening and closing the opening of the grill cabinet;
An open / close detection means for detecting an open state and a closed state of the grill door,
The control means includes
2. The cooking according to claim 1, wherein an amount of change in the weight of the main body from the detection of the open state of the grill door to the detection of the closed state is set as the weight of the cooking object in the grill storage. vessel. It has an operation unit for inputting operations related to heating control,
The control means includes
After the weight of the main body is changed, when a heating instruction operation to the grill heating means is performed,
The cooking device according to claim 1, wherein the amount of change in the weight of the main body immediately before the operation of the heating instruction is the weight of the cooking object in the grill. Comprising temperature detecting means for detecting the temperature in the grill;
The control means includes
The time until the heating by the said heating means is complete | finished from the time when the temperature in the said grill | warehouse | chamber reaches | attains predetermined | prescribed temperature is set according to the weight of the said to-be-cooked item. The cooking device according to any one of the above. Comprising temperature detecting means for detecting the temperature in the grill;
The control means includes
The temperature rise value per unit time from the start of heating to the elapse of a predetermined time is set according to the weight of the food to be cooked when the temperature in the grill box at the start of heating is equal to or lower than a predetermined determination temperature. If the threshold is less than or equal to the threshold, it is determined that the item to be cooked is frozen
The heating cooker according to any one of claims 1 to 7, wherein a heating amount of the grill heating means when it is determined that it is in a frozen state is increased more than a heating amount when it is not in a frozen state. Storage means for storing information on the standard calorie value per unit weight for each cooking menu;
Display means,
The control means includes
10. The calorie value of the object to be heated is determined based on the selected cooking menu and the weight of the object to be cooked, and information on the calorie value is displayed on the display means. The cooking device according to claim 1.

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