KR20080088342A - A heating appliance for cooking - Google Patents

Abstract

A heating appliance for cooking is provided to expand a display area corresponding to an abnormal heating unit and display abnormal information of the heating unit. A plurality of heating units(7) individually operate in order to cooking foods. A plurality of input units input cooking conditions to the heating units. A detector detects the abnormal state of the heating units. A display unit(35R) displays cooking conditions of the heating unit and detection information for the detector. A control unit controls the heating units and the display unit. The display unit has a plurality of display areas corresponding to the heating units. The control unit displays the input cooking condition onto the display area corresponding to the heating unit when the heating unit units normally operates.

Description

Heated cooker {A HEATING APPLIANCE FOR COOKING}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat cooker, in particular an electric heat cooker which cooks by an electric heating source or an electromagnetic induction heating source.

As a heating cooker, an electronic cooker that heats food placed on the upper surface of one body (body) with a plurality of electromagnetic induction heating sources, or an electron that heats radiant heating sources such as an electric heater in addition to the electromagnetic induction heating source. There is a cooker (so-called combined cooker).

And the electric cooking heater which controls a heating time is disclosed (for example, refer patent document 1).

Moreover, the induction heating cooker which prescribed | regulated the operating frequency of a frequency converter is disclosed (for example, refer patent document 2).

Moreover, the cooking heater which provided the shielding board which surrounds a heating means is disclosed (for example, refer patent document 3).

Patent document 1: Unexamined-Japanese-Patent No. 1-269833 (pages 6-7, FIG. 9)

Patent Document 2: Japanese Patent Application Laid-Open No. 2-109292 (No. 2 page, Fig. 1)

Patent document 3: Unexamined-Japanese-Patent No. 3-50790 (pages 6-8, FIG. 2)

However, as in the inventions disclosed in the above Patent Documents 1 to 3, the conventional heating cooker has two heating means (the same as the heating source), and in many cases, for example, five, for controlling them individually, It is necessary to adjust several structure parts, such as an input switch of each heating means, and a thermal power control knob. For this reason, there is a problem in that it is more cumbersome to set the cooking conditions such as the selection of the first cooking menu, the thermal power, etc., in particular, as it has a function capable of coping with various kinds of cooking.

In addition, since the result of such adjustment is displayed individually by a plurality of display parts by "liquid crystal, a lamp, a character, etc.", it was necessary to confirm their state separately. For this reason, there exists a problem that the confirmation of the result of adjustment is troublesome, especially, as it has a function which can respond to various types of cooking.

In addition, since the various alarm indications of the conventional heating cooker are displayed by the "English letter symbol and abbreviation" which the maker of the heating cooker determined, the meaning was understood as a ratio by examining the instruction manual attached to the cooker. For this reason, there is a problem that it is impossible to immediately read whether or not it is an important alarm for a general user.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is possible to set and confirm the heating conditions (heating power, time, temperature, etc.) of cooking on the common screen as much as possible, and to also confirm the heating means. In the event that an abnormality occurs, an object of the present invention is to provide a cooker that can easily check the abnormal state.

The heating cooker according to the present invention,

A plurality of heating means each independently operable to perform heating cooking,

A plurality of input means for inputting a cooking condition to each of the plurality of heating means,

Detecting means for detecting abnormality occurring in the plurality of heating means,

Display means for displaying respective cooking conditions of the heating means inputted from the plurality of input means, detection information detected by the detection means,

Control means for controlling said heating means and said display means,

On the display screen of the display means, a plurality of display areas corresponding to the plurality of heating means are prepared, respectively.

The control means displays the input cooking conditions in the display area corresponding to the heating means in a state in which the control means is normally operated with respect to the heating means being operated among the plurality of heating means. In the generated state, an abnormal occurrence is displayed in the display area corresponding to the heating means in which the abnormality has occurred.

Since the present invention has the above configuration, since the cooking conditions or the abnormality information set for the plurality of heating means are displayed in each display area of the common display screen, the user can confirm the input cooking conditions every time. In the state where abnormalities occurred, the abnormal contents can be known quickly.

Embodiment 1,

1 to 35 show a heated cooker according to Embodiment 1 of the present invention. 1 is an overall perspective view of a heating cooker, FIG. 2 is a cross sectional view of the entire body, FIG. 3 is a longitudinal cross-sectional view of the line YY of FIG. 2, FIG. 4 is a longitudinal cross-sectional view of an essential part showing a top control unit, a center display and an input unit, and FIG. 6 is an electrical circuit diagram and a top display and a center display. Fig. 7 is a schematic diagram showing the display area division of the center display and the input unit, and Figs. 8 to 17 are explanatory diagrams showing the relationship between the display screen of the center display and the input unit and the input keys. 18 to 22 are flowcharts for explaining the operation of the abnormal occurrence state, and FIGS. 23 to 35 are explanatory views showing the screens 1 to 13 displayed by the central display / input unit in the abnormal occurrence state. .

In FIG. 1, the cooker main body 1 is comprised from the box-shaped main body case 2 formed from the metal plate, and the top plate 3 formed from the metal plate which closes the opening of the upper surface of the main body case 2. As shown in FIG.

The top surface of the top plate 3 is covered with a frame-like frame 4, and the top plate 3 is formed of a nonmagnetic stainless steel plate or an aluminum plate, and the large opening provided at the center thereof transmits infrared rays through heat-resistant tempered glass. It is covered in a sealed state by the flat top plate 5 made of a material. Water droplets and the like do not penetrate into the main body 1 through the frame 4 from the upper surface of the top plate 5.

As the electromagnetic induction heating means, a right electromagnetic heating coil (hereinafter referred to as a "right heating coil") 6R is disposed on the lower surface side of the right position of the top plate 5 inside the main body 1, and the right heating coil is disposed. The upper end of 6R is close to the top plate 5. In this example, a maximum power consumption (maximum thermal power) of 3 kW is used.

Moreover, inside the main body 1, the left electromagnetic heating coil (henceforth a "left heating coil" 61) is arrange | positioned at the lower surface side of the left position of the top plate 5, and the left heating coil 6L The upper end part is approaching the top plate 5. In this example, one having a capacity of 2,5 KW maximum power consumption (maximum thermal power) is used.

These two heating coils 6R and the heating coils 61 are electrically connected to an electricity supply control circuit (not shown) so that electricity supply and the amount of electric power can be controlled independently, and a thermal power can also be set separately.

Both the right heating coil 6R and the left heating coil 6L are coils 316R and coils 3151 wound in a spiral shape so as to generate an eddy current during energization, and are made of a metal having a circular shape and an open top surface. The support frame 330R and the support frame 330L of the container shape (a plurality of ventilation holes 330P are provided in the surrounding wall surface, and cooling air is allowed to pass), and the ferrite covering the whole or part of this lower surface. The first plate (magnetic flux leakage preventing plate) 331R, the ferrite plate 33LL, and the like (the left heating coil 6L is shown in part in cross section in FIG. 4).

The edges of the upper surface opening of the support frame 330R and the support frame 330L are provided to contact the bottom surface of the top plate 5 with the heat insulating material 332 interposed therebetween, and the right heating coil 316R and The upper surface of the left heating coil 3151 is provided so as to face the lower surface of the top plate 5 with a constant gap 335.

The central heating means 7 is located inside the main body 1 on the left and right centerlines of the top plate 5 and at the rear portion thereof, and is heated by electromagnetic induction or radiation. Electric heater (for example, nichrome wire or halogen heater). For example, what has the capability of 1.2KW of maximum power consumption (maximum thermal power) is used, and cooking utensils (not shown), such as a pot, placed above it, are heated through the top plate 5.

The front operation part 10 is provided in the right front side of the main body case 2. The front operation part 10 is provided with an operation button 11, an operation dial 12R, an operation dial 12L, an operation dial 13, an indicator light 14, and an indicator light l5.

The operation button 11 supplies all the power of the left heating coil 6L and the right heating coil 6R, the central heating means 7, and the electric heaters 110A and 110B for oven cooking and grill cooking at the same time. The main power switch 11MS to cut off is operated.

The operation dial 12R performs an operation of opening and closing the electrical contact of the control switch 12RS that controls the energization of the right heating coil 6R and the amount of energization (heat power) thereof.

The operation dial 12L operates to open and close the electrical contact of the control switch 12LS that controls the energization of the left heating coil 6L and its energization amount (heat power).

The operation dial 13 controls the energization of the central heating means 7 and its energization amount (heating power).

The indicator light 14 lights up in the state where electricity is being supplied to the right heating coil 6R by the operation dial 12R.

The indicator light 15 lights up in a state where electricity is supplied to the left heating coil 6L by the operation dial 12L.

The three operation dials 13, 14, and 15 are press-fitted so as not to protrude from the surface of the front operation part 10, as shown in FIG. 1 in a state where they are not used. Press once to protrude forward and turn the operation dials 13, 14 and 15. At this stage, the left heating coil 6L, the right heating coil 6R and the central heating means 7 Each energization starts. Then, when the respective operation dials 13, 14, and 15 are turned to the left and right, respectively, the amount of energization is determined in accordance with the amount of rotation, and the thermal power setting is performed.

In addition, the front operation part 10 is provided with operation dials 17, 18, and 16, and the desired time from the start of energization of the left heating coil 6L, the central heating means 7, and the right heating coil 6R, respectively. As long as the power is supplied, the timer switch (not shown) is automatically operated to turn off the power.

In the lower half of the inside of the main body 1, the heating chamber 19 is partitioned, and the left and right wall surfaces are formed by the metal plate. The electric heater (110A of FIG. 4) of the maximum power consumption (maximum thermal power) 1200W is provided in the vicinity of the upper ceiling in the heating chamber 19, and the electric heater (not shown) of the maximum power consumption of 800W is provided in the vicinity of the bottom part, respectively.

Therefore, oven cooking (eg, roasting fish), grill cooking (for example, pizza or gratin), or oven cooking (for example, setting the ambient temperature in the heating chamber 19) by energizing these heaters simultaneously or separately. For example, cakes or baked vegetables) are performed.

Moreover, the upper surface operation part 20 is arrange | positioned at the upper surface of the top plate 3, specifically, the front of the frame 4, and as shown in FIG. 1, in the center part which pinched the left-right center line of the main body 1, 6L of heating coils, the right heating coil 6R, the central heating means 7, and the operation part 23 of the electric heater (not shown) for oven cooking or cousole cooking are arrange | positioned, and in the right side which pinched the left-right centerline, The thermal power setting operation part 22 of the left heating coil 6L is arrange | positioned at the left side in which the thermal power setting operation part 21 of the right heating coil 6R pinched | interposed the left and right center lines, respectively.

6 is an enlarged plan view showing a part of the upper surface of the top plate. 6, the one-touch key part 24 which can be easily set by the user pressurizing the thermal power of the right heating means 5R once is provided, and the one-touch key part 24 has three one-touch keys 25, 26, 27 Equipped with. That is, the reinforcement power key 25 which sets the thermal power of the right heating coil 6R to 2.5 KW, the neutralizing power key 26 similarly set to 750W, and the weakening power key 27 set to 300W similarly.

Moreover, also for setting the thermal power of the left heating coil 6L, the same key as the one-touch key 24 is provided in the operation part 22 (refer FIG. 24), and the thermal power of the left heating coil 6L is 2.5KW by one touch. , 750W and 300W can be set.

In FIG. 6, when the reinforcement force key 86 is provided in the right end part of the one-touch key part 24, and it wants to set the heat power of the right heating coil 6R to 3KW, it pressurizes this.

In the center display / input unit (corresponding to the display means of the present invention) 80, two two heaters 6L, the central heating unit 7, the right heating coil 6R and the heating chamber 19 are provided. The energized state (heating power, time, etc.) of the electric heating means 110A, 110B can be input or confirmed. This will be described later in detail.

As shown in FIG. 6, the above-mentioned center operation part 23 has an operation button of an operation switch (not shown) which starts energization of each electric heater 110A, 110B used for roast cooking, oven cooking, and grill cooking. (92) and the operation button 29 of the operation switch (not shown) which stops the electricity supply are arranged side by side.

In addition, the central control unit 23 adds or subtracts the control temperature in grill cooking by the heaters 110A and 110B and electronic cooking by the left heating coil 6L and the right heating coil 6R by one degree. The operation buttons 300 and 310 of the temperature control switch (not shown) to be set are provided in a horizontal line.

Then, if a convenient menu key 93 is provided and is pressed when setting any of the frying cooking, frying preheating state display, and timer cooking, the desired input screen or status display screen is simply displayed on the central display / input unit 80. Can be read.

In addition, the frying cooking column is cooking using the left heating coil 6L and the right heating coil 6R, and the frying preheating state display column uses the left heating coil 6L and the right heating coil 6R, It is an indication of the state heated to predetermined | preheated preheating temperature, The timer cooking column is two electric heating provided in the inside of the left heating coil 6L, the right heating coil 6R, the central heating means 7, and the heating chamber 19. It cooks by energizing only for the time which the means 110A, 110B etc. set as the timer counter.

Moreover, the operation button 94 of the control switch (not shown) for operating ON / OFF of the power supply of the central heating means 7 is provided.

Moreover, the right IH convenience menu button 93a which consists of a hard button is provided in the right side of the operation button 29, and this is a setting button for making various settings regarding the right heating coil 6R. The same setting button is also provided for the left heating coil 6L (not shown).

A start switch 34R of a timer counter (not shown) is provided at the right end of the operation unit 21. When the user presses once, the time is measured from that point in time, and is provided at the right front corner of the top plate 5. The elapsed time is displayed in units of minutes and seconds by transmitting the display light to the liquid crystal display unit 35R (near the lower surface of the top plate 5 and above it through the top plate 5).

Similarly, when the user presses the frying selection switch 36R provided on the operation unit 21 once, the oil temperature of the frying pan by the right heating coil 6R can be initially set to 180 ° C, after which the user can set the right heating coil. The thermal power of (6R) can be set to any suitable, e.g., 200 ° C, suitable for frying by operating the operation dial 12R.

In the operation part 22 on the left side, a switch 34L such as the start switch 34R of the timer counter (not shown) and the liquid crystal display 35L having the same function as the liquid crystal display 35R displaying the measurement time ( 1) and three of the frying selection switch 361 which functions as the frying selection switch 36R for the left heating coil 6L, respectively, sandwiching the left and right center lines of the main body 1 at the left and right target positions. It is prepared.

The thermal power indication lamp 40R displaying the magnitude of the thermal power of the right heating coil 6R is a position corresponding to the position between the right heating coil 6R corresponding position and the operation unit 21 on the right front side of the top plate 5. In the vicinity of the lower surface of the top plate 5 so as to emit the display light from the lower surface through the top plate 5 (through).

The thermal power indication lamp 40L which displays the magnitude of the thermal power of the left heating coil 6L is a position corresponding to the position between the left heating coil 6L corresponding position and the operation unit 22 on the left front side of the top plate 5. In the vicinity of the lower surface of the top plate 5 so as to emit the display light from the lower surface through the top plate 5 (through).

The above-described thermal power indication lamp 40R for the right heating coil 6R can display the thermal power from 120 W to the maximum thermal power 3 KW in 12 stages, and the details are shown in Table 1 below.

TABLE 1

Firepower stage One 2 3 4 5 6 7 8 9 10 11 12 Power Consumption 120 W 300 W 500 W 563 W 625 W 750 W 875 W 1000 W 1500 W 2000 W 2500 W 3000 W

And in order to represent these 12 steps of thermal power by light emission, the thermal power display lamp 40R arrange | positions 12 light emitting diodes 246-257 (light emitting element) linearly like the circuit diagram shown in FIG. For example, in the case of the thermal power 1, only 246 of the light emitting diodes 1 light up, and the red light can be easily seen by the user from the surface of the top plate 5.

Furthermore, as shown in Table 1, finer medium thermal power is provided by 563W, 625W, and 875W between 500W and 1000W which is an area of neutralizing power.

Although the thermal power indication lamp 40L for the left heating coil 6L is not shown, it is possible to display the thermal power from 120 W to the maximum thermal power (2) and 5 KW in 11 steps, and the details are shown in Table 2 below. It is like.

TABLE 2

Firepower stage One 2 3 4 5 6 7 8 9 10 11 Power Consumption 120 W 300 W 500 W 563 W 625 W 750 W 875 W 1000 W 1500 W 2000 W 2500 W

In addition, similar to the thermal power indicator lamp 40R for the right heating means 6R, three more fine intermediate thermal powers are set to 563W, 625W, and 875W.

The reason why 563W, 625W, and 875W of thermal power is provided in this way is demonstrated.

As a result of actually cooking by heating in the neutralization area, as a result of the conventional thermal power, such as 500 W or 750 W, the boil is unintentionally boiled, boiled over, or conversely, the state of being unable to maintain a sufficient high temperature heating state, It has been found that cooking with stable and varying amounts of food is not skillfully controlled.

Therefore, in this neutralized thermal zone, 625W, which is the median of the conventional thermal power, for example, 500W and 750W, was added, and 563W, which is the approximate median of 625W and 500W, was added. For this reason, the user can make finer thermal control than the conventional thermal control, and it can stably prevent the boiled product from boiling unintentionally, or conversely become unable to maintain sufficient high temperature heating. It becomes possible to perform various kinds of various cooking skillfully.

The center display and input portion (corresponding to the display means of the present invention) 80 is located in front of the left and right center portions of the top plate 5. The center display / input unit 80 includes functions of the left heating coil 6L and the right heating coil 6R (whether or not cooking operation), functions of the central heating unit 7 (whether cooking or the like), and the like. The operation sequence and function (for example, whether roast cooking, roasting, or oven cooking are currently performed in the case of grill cooking) are written in the heating chamber 19. Display it in illustrations, graphs, etc.

The center display / input unit 80 mainly comprises a liquid crystal panel, and is provided near the bottom surface of the top plate 5 so as to radiate display light upward from the bottom surface through the top plate 5 (through). See FIG. 4). This will be described later in detail.

The thermal power indication lamp 60 is arrange | positioned a little back position rather than the center display and input part 80, and displays the magnitude of the thermal power of the central heating means 7. The thermal power indication lamp 60 is provided in the vicinity of the lower surface of the top plate 5 so as to radiate the display light from the lower surface to the upper surface side through the top plate 5 (through), similarly to the thermal power indicator lamp 40R.

In addition, the thermal power indicator lamp 60 is able to display the thermal power from 100W to the maximum thermal power 1500W in five stages, the thermal power (1) is 100W, the thermal power (2) is 300W, the thermal power (3) is 600W, The thermal power 4 is set at 1200 W, and the thermal power 5 is set at 1500 W, and these light emitting diodes (not shown) are linearly arranged similarly to the thermal power indicator lamp 40R. For example, in the case of the thermal power 1, only the leftmost light emitting diode is turned on, and the user visually sees that the central heating means 7 is operating at a power consumption of 100 W. You can check it.

In addition, in FIG. 1, the door 70 is supported by the support mechanism (not shown) to the heating chamber 19 so that the front opening 71 of the heating chamber 19 may be opened and closed freely and moved back and forth. The window 72 provided in the center of the door 70 is covered with heat resistant glass. In addition, the metal base plate 73 is formed integrally with the door 70, and in the case of cooking with a lot of oil, a metal grill (not shown) is usually placed on the base plate 73.

The right exhaust port 74 is provided on the rear upper surface of the frame 4, and the surface is covered with a punching metal, a mesh, a fine grating so that a user's finger, a foreign object, and the like do not enter.

Similarly, the left exhaust port 75 is provided on the rear upper surface of the frame 4, and the surface is covered with a punching metal, a mesh, a fine grating so that a user's finger, foreign matter, and the like do not enter. The left exhaust port 75 and the right exhaust port 74 communicate with the internal space (the upper space 275 to be described later) of the main body 1, and further provide an exhaust duct (not shown) to the inside of the heating chamber 19. Communicate through.

The hot air generated in the heating chamber 19 (including oil smoke generated from the cooking product) is discharged via the left exhaust port 75 and the right exhaust port 74. The main body is provided from the intake port (not shown) provided in the rear center wall of the main body case 2 by the operation of the electric intake fan 316 (see FIG. 5) provided with fresh indoor air inside the main body 1. It is sucked into the inside of (1). The air is cooled by the lower space 274 (see FIG. 4) and the side periphery located above the heating chamber 19 inside the main body 1, and then the left exhaust port 75 and the right side. It is exhausted from the exhaust port 74.

In Fig. 6, the six various operation buttons 29, 92, 93, 94, 300, 310, 93a and the like are covered with a thin resin coating or a metal film whose surface is resistant to water or oil of food, It is comprised so that a user may operate | move lightly with a fingertip (the built-in electric contact is conducting and an input signal is generated).

In addition, an input key group 91 is provided in the central operation unit 23. This key group is provided with six independently operable keys 83, 95, 96, 97, 98, and 99. The keys are covered with a thin resin film or metal film whose surface is resistant to oil of food, etc. The user is configured to operate by lightly pressing with the fingertip (the built-in electric contact is conducting and generates an input signal).

As mentioned above, the reason why each operation button or input key of the central operation unit 23 is not used as a contact type input key (see, for example, Patent No. 2712399) is that the type of contact key is a capacitance. Since the input signal is generated by detecting the change of, the malfunction may occur in this type of cooker, considering the situation such as splashing of water or oil during cooking or when the user operates with wet hands. I did not hire. Thus, in the first embodiment, higher reliability is ensured, but the present invention can be realized even if the above contact key is employed, and it is not necessary to use a press key.

The center display and input unit 80 is configured of a known dot matrix liquid crystal screen. As a result, it is possible to realize high-definition screens (QVGA having a resolution of 320x240 pixels, VGA (Video Graphics Array) equivalent to 640x480 dots, and 16 colors), and to display a large number of characters even when displaying characters. The character of can be displayed.

Fig. 7 is an example in which the specifics are shown schematically. As shown in Fig. 7, the screen area 81 for displaying information is allocated to 10 areas in total,

Corresponding areas A1 and A2 of the left heating coil 6L,

Corresponding areas B1 and B2 of the central heating means 7,

Corresponding areas C1 and C2 of the right heating coil 6R,

Corresponding area D of the heating means 110A, 110B for grill and oven cooking,

Guide area (E) which displays attention and reference information in various cooking to user,

Six display keys 84, 100, 101, 102, 103, which are adjacent to each of the input keys 83, 95 to 99 of the input key group 91, and separately display functions that can be input by the keys. A key display area (F) for displaying (virtually) 104;

Each tip display area G is provided.

Each of the above-described ten areas (display area) is realized on the liquid crystal screen of the center display / input unit 80, but is physically formed separately on the screen itself and is not partitioned. Since it is established by a program of a microcomputer, it is possible to change an area, a form, and a position every time by the software. In addition, in consideration of the user's ease of use, the arrangement order of each heating means such as the left heating coil 6L, the central heating means 7, and the right heating coil 6R is always the same.

Corresponding areas A1 and A2 of the left heating coil 6L include a first display area A1 that displays a steady state of a "first condition" setting such as thermal power (heating amount) for the left heating means, Cooking time for the left heating coil 6L, setting temperature (there are more types than the first condition) and the setting state of the "second condition" and the "physical quantities such as temperature, current, voltage," or more. It consists of two areas of the 2nd display area A2 to display.

Similarly, the display areas B1 and B2 of the central heating means 7 are the first display area B1 for displaying the steady state of the "first condition" setting such as thermal power for the central heating means, and the central heating. Cooking time, set temperature, etc. (there are more types than the 1st condition) for the means 7, and the 2nd which displays the setting state of "the 2nd condition", and "physical quantities, such as temperature, current, voltage, etc." or more It consists of two areas of the display area B2.

Similarly, the corresponding areas C1 and C2 of the right heating coil 6R include the first corresponding area C1 indicating the steady state of the "first condition" setting such as thermal power for the right heating means, and the right heating. Cooking time for the coil 6R, setting temperature, etc. (there are more types than the first condition) A second state displaying the normal state of the "second condition" setting and the "physical quantity such as temperature, current, voltage, etc." or more. It consists of two areas of the display area C2.

In Fig. 6, the relationship between the key display area F and the six input keys 83, 95 to 99 is shown. Each of the six keys (hereinafter, also referred to as display keys or soft keys) 84, 100 to 104 provided in the key display area portion F are virtual keys in the liquid crystal screen whose functions change depending on the scene. The operation is performed by operating the input keys (F1 to F6, also referred to as function keys) 83, 95 to 99 disposed in close proximity to the respective keys 84 and 100 to 104, respectively. ), The operation signal corresponding to the operation is inputted to the energization control circuit 200 described later.

In addition, as a method of individually displaying the six input keys 83, 95 to 99, there are a variety of methods for displaying characters on the key portion, lighting them with a light emitting diode, etc., emphasizing the color and luminance of the key portion, or the like. However, in this embodiment, characters and symbols (arrows, etc.) necessary for setting various parameters (target heating means, heating temperature and time, amount of energization, etc.) that are prerequisites for the conditions that can be inputted are displayed. 84, 100 to 104).

In front of the input key 104, an information key (Tips key) 85 made of a hard key is provided. This key corresponds to the Tips display area G above the key 104, and when "○ i (i)", which means a symbol specific to the display area, for example, reference information (information) is displayed, When this information key 85 is pressed, the detailed information etc. which are helpful for cooking can be displayed on the guide area E of the center display and the input part 80 by character as shown in FIG.

8 to 17 are operation explanatory diagrams showing display examples of display keys 84 and 100 to 104 and input keys (function keys) 83 and 95 to 99.

Each of the six display keys 84, 100 to 104 has LEDs disposed below each of them, and the display keys for input effective for each operation scene are lit. For example, the display keys 100 to 104 shown in FIG. 8 are valid (active state). In the figure, AM is an active mark which shows typically that it is in an active situation. In practice, not only the lighting of such a specific shape is performed, but also the active state may be indicated by a method such as brightening the entire region or outline of the display keys 84, 100 to 104, or changing the color. .

In addition, among the display keys 84, 100 to 104, the keys which are invalid even after operation are distinguished by gray out (display contrast and text content lightly) or non-display (only display the key outline shape lightly). I'm trying to. In FIG. 8, only one display 84 is grayed out or non-displayed. Also, regarding the function keys 83 and 95 to 99, the effective function keys can be visually distinguished by the presence or absence of lighting of LEDs provided separately below them.

In FIG. 8, even if the function key 83 corresponding to the input key 84 does not turn on LED and presses the function key 83 which this LED does not light, in the electricity supply control circuit 200 described later, The valid operation signal is not accepted from the upper surface operation unit 20 (to the control program that determines the operation of the energization control circuit 200, the operation command signal is not a valid operation command).

That is, in Embodiment 1, when a user sees the center display and input part 80, the function name or heating which selects nothing in this way to an unnecessary display key so that a desired display key can be recognized and understood a little quickly and simply. It is programmed not to display the name of the means. In addition, the display keys with valid inputs can be distinguished by letters, light emission, colors, and the like. In addition, the function keys 83, 95 to 99 corresponding to the valid display keys also indicate that they are in a valid (active) state by color, light or the like.

In other words, the active states of the six display keys 84 and 100 to 104 and the active states of the six function keys 83 and 95 to 99 change for each input scene, but both correspond. For example, in FIG. 8, in the scene in which the display key 100 is valid (because the active mark AM is lit), the function key 95 is also valid (active state).

In FIG. 8, since the screen area 81 of the center display / input unit 80 displays the initial state, the function key 83 corresponding to the display key 84 is inactive, and this key 83 Is pressed, the corresponding display key 84 indicates that input operation cannot be performed.

In the display key 84, an explanation text of "initial screen" is displayed, but since it is already an initial screen, there is no need to operate the key 84 (the display itself is displayed as this initial screen). 84) may not be displayed, but is shown for convenience of explanation).

In addition, after FIG. 6 or FIG. 8, the display key 100 of "returning" is pressed in order to return to the previous input screen or display screen in the process of inputting cooking conditions, etc. In FIG. The input key 84 of the "initial screen" is operated when it is desired to return to the initial screen at once in any stage.

Fig. 9 shows a display example of the center display / input unit 80 and the input keys (function keys) 83, 95 to 99 when the user presses the 3KW key 86 (see Fig. 6) from the state shown in Fig.8. It is explanatory drawing to show. When the 3KW key 86 is pressed, a command of menu selection is input to the energization control circuit 200 by the input signal of the input key 86, and the control circuit is connected to the center display / input section 80 in FIG. Command to display the screen.

The area C2 of the right heating coil 6R in the center display / input unit 80 is automatically enlarged several times in area, and is displayed in the display area C1, and the level of the thermal power is in 12 stages. You can see that it is set to 3KW, which is 12 (maximum).

Since the thermal power cannot be lowered, the display key 102 for lowering the thermal power is inactive, and the function key 97 corresponding thereto is inactive. Since the energization time is displayed in 2 minutes, 5 minutes, and 10 minutes in the initial setting, when the user wants to change the 2 minutes to 5 minutes, the 3KW key 86 is pressed again or the time or temperature is changed. Since the display key 103 in which the symbol " " to be increased is displayed is operated, the function key 98 may be pressed. In this case, the function key 98 for lengthening the time (5 minutes or 10 minutes) is an active display, and the function key 97 corresponding to the display key 102 for shortening the time is gray. It is out (because you cannot get off in less than two minutes). However, in the case of returning to 2 minutes after setting to 5 minutes, this function key 97 is active, so this may be pressed.

As shown in FIG. 9, in the guide area E (corresponding to an alarm and guide display area) of the center display and input unit 80, a cooking time is selected from 2 minutes, 5 minutes, and 10 minutes. The user can easily recognize that the selection method can be performed by pressing the 3KW key 86 or by operating the display keys 102 and 103 indicated by the symbols " → " and " ← " with the function keys 97 and 98. Can be.

In this way, the display area E can be displayed with up to 50 characters, for example. The main display contents are important alarms, such as an explanation of the operation functions of various keys and assistance in the operation procedure. .

FIG. 10 shows a display example of the center display / input unit 80 and the function keys 83, 95 to 99 when the user presses the convenient menu key 93a (see FIG. 6) from the state shown in FIG. It is explanatory drawing to say. In FIG. 10, when the key 93a is pressed, the area C2 of the right heating coil 6R in the center display / input unit 80 is automatically enlarged, and various cooking menus (for example, the left side) are enlarged. , Frying, steaming, etc.) is displayed, and it can be seen that the thermal power level is initially set to 625W (weakening power), which is 5 in 12 stages, as a suitable thermal power for boiling.

Since this thermal power can be changed to the desired thermal power in addition to the initial setting value, if the user wants to drop the thermal power by one step to 563 W or less, the function key 97 is pressed once to operate the display key 102. , 1 step down, 2 times to go down to the 2nd stage (500W). Conversely, when raising the thermal power, the function key 98 may be pressed.

In addition, as for the energization time, when the display key 101 in which the arrow of the up-down direction is operated is operated, the input condition will be "energization time." That is, the time setting of the part "time: 0 minute" in FIG. 10 becomes possible. Thus, if the cooking time is to be set to 2 minutes, the function key 98 is pressed twice. Since Fig. 10 is in the step of setting the time in this manner, the time (0 minute) is not reduced (reduced), so that the function key 97 to which the display key 102 corresponds is inactive (this key ( 97), nothing can be entered).

In addition, when it is desired to set the thermal power again without performing the time setting, when the function key 96 corresponding to the display key 101 is pressed from the state of FIG. 10, the input is performed as shown by the arrow of the display key 101. The object can be moved from the "time" to the "heat power" displayed at the upper position, and the input target can be changed from the time column to the heat power column.

In addition, if you want to change the cooking menu from "boiling" to "breaking timer", press the function key 96, and it will travel like "boiling → warming → frying → cutting timer". That's good.

In addition, the interruption timer selects the thermal power of the left heating coil 6L and the right heating coil 6R from level 1 (120W), 2 (300W), 3 (563W)-8 (1KW), and is 1 hour 30 minutes. It is a function which allows continuous cooking within (90 minutes) to be performed by a timer, for example, it can use that it heats by heating the right heating coil 6R for 29 minutes with the thermal power 8, and cooking is performed. In addition, the heating means in the case of interrupting timer operation can also be used also in the central heating means 7.

In FIG. 10, the energization mark 50 indicates that the right heating coil 6R is energized and being heated by lighting or blinking. The energization mark 50 is shown in the right position which displayed the name of each heating means, as shown in FIG.

FIG. 11 shows the center display / input unit 80 and the function keys 83, 95 to 99 when the user presses the convenient menu key 93a in the state shown in FIG. It is explanatory drawing which shows an example. In this example, in the area C2 of the right heating coil 6R, in the setting which performs 40 minutes of boiling cooking, it currently displays that 33 minutes passed and the remaining time became 7 minutes.

In this way, when the heating means is selected and the heating cooking operation is selected, the display areas A2, B2 and C2 of the specific heating means are automatically returned to the standard area, and as shown in FIG. The areas of B2 and C2) are approximately equal. The energization mark 50 is displayed in the display area of the right heating coil 6R.

FIG. 12 shows a case where automatic grill cooking is performed when the user selects the display key 103 for grill cooking and presses the function key 98 in the state (initial screen) of FIG. 8. . When the function key 98 is pressed, the display area D of the electric heater for oven cooking and grill cooking in the center display / input unit 80 is automatically enlarged, and various cooking menus (eg For example, auto grille, manual grille, etc.) is displayed.

In the automatic grill, as shown in Fig. 12, in addition to "grilled whole meat", heating menus such as "sliced fish", "small fish", and "soy sauce grilled" can be selected. This selection method only presses the function keys 97 and 98. In this case, each time the display key 103 (function key 98) is pressed, a menu of "grilled meat → fish pieces → small fish → soy sauce baked" appears. In addition, when the display key 102 (function key 97) is pressed, it can be displayed by selecting them sequentially like "fish meat → roasted meat" in the opposite direction to the above.

In addition, when the display key 101 is operated by pressing the function key 96, the baking color in the case of roasting can be set. In order to increase the baking color, the function mode for the baking color is set, and the function key 98 is pressed. In the case where it is desired to decrease the baking color, the function key 97 may be pressed. Each press changes the baking color by one step. As shown in Fig. 13, when the level of the color to be baked is set to 4, operation of the input key 104 corresponding to the start key with the function key 99 starts cooking.

When cooking shown in FIGS. 12-13 is carried out, in the state in which the door 70 of the heating chamber 19 was opened, the warning message "The door of the (i) grille is open" is displayed in the display area E. FIG. Is displayed. Moreover, as shown in FIG. 13, a message shows that fish such as "saury", "horse mackerel", and "sardine" can also be roasted whole.

It is explanatory drawing which shows the display example of a tip. `` Tips '' means useful information and little knowledge, and to inform you of useful functions and cooking points if you know it, and contents that solve the user's embarrassment by automatic control in a scene where the user wants to know. I am ready. In Embodiment 1, it mainly uses as a howto countermeasure, and aims at making IH cooking more comfortable.

The operation is performed by pressing the information key (Tips key) 85 (see Fig. 6), which is a hard key corresponding to when the "○ i (i)" icon (i is the initial letter of the information) is displayed on the display area G. The contents corresponding to the time are displayed.

In addition, as the display contents, for example, as shown in Fig. 14, there are the following examples.

(1) Notification of actions irrelevant to the user's operation and intention (eg anti-forgetting / automatic cleaning of degassing filters).

(2) Content that you want to do to handle automatic cooking (fried, automatic grill) safely and skillfully.

(3) It tells you the habits (baked stains, etc.) peculiar to the whole of the cooking.

(4) Request and warning contents of safe side of cooking apparatus, correspondence method for alarm.

In FIG. 14, when the user wants to know in detail the color standard of the auto grill, the user presses the function key 98 and manipulates the display key 103 to switch the display screen to the next page.

13 and 14, the microcomputer incorporated in the energization control device 200 of the cooker immediately after the start of cooking in response to the conditions such as the type and size of the heated object, the setting of the baking color, etc. By looking at the state of the temperature rise of the heating chamber 19, the time until cooking completion is calculated, and it shows as "18 minutes after roasting" as shown in FIG. 15 using the calculation result as a reference time.

On the other hand, the "manual grille" means that the cooking time can be set freely, and when the grilling degree is to be increased after the automatic grilling is finished, the manual grilling can be used after the automatic grilling is finished. In addition, after the cooking is finished, the energization control circuit 200 may perform automatic cleaning of the heating chamber 19 (energizing the degassing filter which acts to decompose smoke for a certain time). Medium ”and the like are displayed in the display area E. FIG.

In addition, despite the attention that "the grill door is open" as shown in FIG. 15, when left unchanged for 30 seconds or more, heat leaks out of the heating chamber 19, and the temperature in the heating chamber is sufficiently Since it does not rise, the microcomputer of the electricity supply control circuit 200 is programmed so that the setting of cooking conditions may become invalid. At this time, a caution message as shown in Fig. 15 is issued, and the user is urged to be in a correct use state.

In the state shown in FIG. 15, it is "left IH frying temperature 180 degreeC". This means that the left heating coil 6L is energized, and the energization time is initially set to a timer for 20 minutes in this cooker (after cooking starts, it counts down from this 20 minutes and displays every minute. It means. In addition, "setting 180 degreeC" means that the left heating coil 6L is energized, and the temperature of the oil of a frying pan is set to 180 degreeC.

As described above, the control program may be designed such that the initial setting (default) time is 20 minutes, for example, 10 minutes.

In the state of FIG. 15, the display key for selecting the central heating means 7 is not displayed. Since the function key 96 corresponding to the display key 101 is also in an inactive state, even if this key 96 is pressed, no valid command is input to the energization control circuit 200 at all. Thus, while grill oven cooking is being performed, in order to suppress the power consumption of the whole cooker to a fixed range, the center heating means 7 cannot be used simultaneously.

By the way, the center display and input part 80 can change the area of the display area of 2nd display area A2, B2, C2 largely according to the content displayed so that a user may visually confirm. The second display areas A2, B2, and C2 have a "second condition" setting state such as cooking time, a set temperature, and an abnormal state of "physical quantities such as heating temperature, current, voltage, etc." in each display area. It is to display two.

For example, when setting or confirming the control conditions of the left heating coil 6L, the target area A2 occupies the entire area as shown in FIG. Greater than 15 states). That is, in the state of FIG. 15, when the function key 95 (which is in an active state) is pressed in order to input and operate the display key 100 indicated by "left IH" and a character or a symbol, the display as shown in FIG. The user can confirm the information necessary for cooking the left heating coil 6L.

In FIG. 16, the heating temperature of oil is initially set at 180 ° C., but when the function key 97 corresponding to the display key 102 is pressed, the temperature can be lowered by 1 ° C., on the contrary, to the display key 103. By pressing the corresponding function key 98, the temperature can be increased by 1 deg.

In addition, although the energization time is set to the first 20 minutes, when the function key 96 is pressed, an input item can be switched from "temperature" (for example, 180 degreeC) to "time". Then, after setting the time input mode in this manner, when the function key 99 corresponding to the display key 104 is pressed, the frying cooking starts under the above conditions (at the start step, as shown in FIG. IH ", the energization mark 50 lights up at the right side position of the display of" IH ").

In this case, in the display area E, for example, "The cooking rate should be cooked at 0.6L or more" to the user, and the oil used for frying should be 0.6 liter or more. Attention letter comes out. In other words, it has a function to display precautions such as the amount of oil required for frying and the heating temperature. For example, if only 0.2 liter of frying oil is put into a pan and heated, the oil may rise to 300 ° C or more at once by the heating power of the heating means, and there is a risk of ignition accident or the like.

FIG. 17 shows a state in which the user uses the right heating coil 6R in the state (initial screen) of FIG. 8 and performs grill cooking during its use. When the right heating coil 6R is used first, the display keys 84, 100 to 104 are in the state shown in Figs. That is, as shown in FIG. 15, since the character of "grill" appears on the input key 103, and the corresponding function key 98 also becomes active, when this key 98 is pressed, the grill oven cooking is performed. The display area is enlarged as shown in FIG. In this state, the energization display mark 50 is lit (or flashes) in the display area C2 indicated by "right IH" indicating the right heating coil 6R, and it is understood that the right heating coil 6R is being heated. Can be.

On the other hand, since the central heating means 7 and the left heating coil 6L do not display the current display mark 50 or other characters or pictures indicating that the current is being energized, the display areas B2 and A2 are used. It can be seen that it is not (stopped). In addition, the screen of this state of FIG. 17 is energized of all the heating coils 61, 6R, 7, 110A, and 110B as shown in FIG. It automatically returns to the initial screen where you can see the status.

5 is a diagram illustrating the entirety of the control circuit of the cooking apparatus. In Fig. 5, the energization control circuit 200 includes one or a plurality of microcomputers, and is composed of four parts of an input unit, an output unit, a storage unit, and an operation control unit, and DC power is supplied through the constant voltage circuit 232. It is becoming. The energization control circuit 200 serves as a control means for controlling all heating coils (heating means) and display means (central display / input portion 80) in the present invention.

The commercial power supply 202 supplies 200V to the busbars 202A and 202B of the main circuit, and the main power switch 201 is provided on one busbar 202A of the main circuit. And for the right heating coil 6R in which the circuit 206R is connected in parallel with the power supply 202, the circuit 206L is for the left heating means 61 comprised similarly to the right heating means circuit 206R. The circuit 207 is provided as the circuit for the central heating means 7, and the circuit 208 is provided for the heating means for the grill oven.

The right heating means circuit 206R includes an induction heating coil 220, a rectifying bridge circuit 221 having an input side connected to bus lines 202A and 202B, a coil 222 connected to this DC side output terminal, and smoothing. A resonant circuit composed of a direct current circuit composed of a condenser 223, a parallel circuit of a heating coil 220 and a resonant condenser 224 having one stage connected to a connection point of the coil 222 and the condenser 223, The other end of the resonant circuit is provided with an IGBT 225 serving as a switching means connected to the collector side.

The emitter of the IGBT 225 is connected to the common connection point of the smoothing capacitor 223 and the rectifying bridge circuit 221. 226 is a flywheel diode, which is connected between the emitter and the collector of the IGBT 225 so that its anode is on the emitter side.

In FIG. 5, the current detection sensor 227 detects a current flowing through the resonant circuit 225 formed of a parallel circuit of the heating coil 220 and the resonant capacitor 224, and the detection output is an energization control circuit 200. Is supplied to the input of. If an undercurrent or an excessive current is detected in comparison with a normal current value due to an accident or the like when a pot or the like which is not suitable for induction heating is used, the IGBT ( 225 is controlled, and the electricity supply of the induction heating coil 220 is stopped in an instant.

The right heating means circuit 206R is controlled by the induction heating coil 220, the DC circuit composed of the coil 222, and the smoothing capacitor 223, the driving circuit 228, and the driving circuit. The IGBT 225, the resonant circuit 220, the flywheel diode 226, and the rectifying bridge circuit 221 are configured.

Since the left heating means circuit 206L has the same circuit configuration as the right heating means circuit 206R, description thereof is omitted. Moreover, the maximum thermal power of 6L of left heating coils is 2.5KW as mentioned above, and is designed smaller than the maximum thermal power setting 3.0KW of 6R of right heating coils.

Although not shown, the current detector 227 is similarly provided in the left heating means circuit 206L, the circuit 208 for the grill-oven heating means, and the circuit 207 for the central heating means 7, respectively.

The circuit 207 for the central heating means 7 has a series circuit between the electronic relay 230 and the electric heater 231, and both ends of the circuit are connected to the bus lines 202A and 202B, respectively.

The infrared drive circuit 233 generates an infrared optical signal based on a drive signal output from the energization control circuit 200. The infrared drive circuit 233 has a plurality of infrared rays (there are only three in Fig. 5) on the drive output side. The series connection circuits of the LEDs 234, 235, and 236 are connected. The other end of the series connection circuit is connected to the collector of the transistor 238 via a resistor 237, and the base of the transistor 238 is connected to the infrared drive circuit 233. In addition, the emitter of the transistor 238 is grounded.

The ventilator 239 is not part of the structure of the cooker of the present invention, nor is the device or part essential to the cooker of the present invention. It is installed in the upper part of the side wall of a kitchen which becomes upper of the installation space of a cooking apparatus. The control unit of the ventilation device 239 includes a photodiode 240 made of an infrared light receiving element, a receiving circuit 241, and a control circuit 242.

In addition, the fan motor 243 drives an exhaust fan for ventilation. When the photodiode 240 receives an infrared signal from the series circuit of the infrared LEDs 234 to 236, the control circuit 242 is received through the receiving circuit 241. A signal is transmitted to and rotates by the signal.

The drive circuit 244 drives the liquid crystal display of the center display and input unit 80, and a drive signal is input from the energization control circuit 200.

The drive circuit 245 turns on the thermal power indication lamp 40R of the right heating coil 6R, and a drive signal is input from the energization control circuit 200.

As shown in FIG. 5, the thermal power indicator lamp 40R includes a circuit in which a total of twelve light emitting diodes 246 to 257 are connected in parallel to each other. One end of this parallel circuit is connected to the drive circuit 245, and the other end is connected to the ground side connection point 259 via resistors 258a to 258l, respectively. Moreover, although the thermal power indication lamp 40L for the left heating coil 6L is comprised similarly, the number of light emitting diodes is 11 pieces.

As described above, the thermal power indicator lamp 40R for the right heating coil 6R can be displayed in 12 stages with 12 light emitting diodes between the thermal power of 120 W and the maximum thermal power of 3 KW.

The thermal power indicator lamp 40L for the left heating coil 6L is not shown, but as described above, 11 light-emitting diodes can be displayed in 11 stages between the thermal power of 120 W and the maximum thermal power of 2.5 kW. .

In FIG. 5, the cooling fan drive circuit 260 is for maintaining the internal space of the main body 1 in a constant temperature range. In addition, in the temperature detection circuit 311,

The temperature sensor S1 in the vicinity of the electric heater 231 of the circuit 207 for the central heating means 7,

The temperature sensor S2 at the bottom of the induction heating coil 220 of the circuit 206R for the right heating coil 6R,

On the rear upper surface of the liquid crystal display panel of the center display and input unit 80, the temperature sensor S3,

A temperature sensor S4 at the bottom of the support edge 330L of the induction heating coil of the circuit 206L for the left heating coil 61,

The temperature sensor S5 at the ceiling of the heating chamber 19,

Temperature sensor S6 on the ceiling of the inlet of the cooling duct 372R of a plurality of high voltage electrical components (such as a power transformer or a high frequency inverter control circuit component) provided in the right space 370R inside the main body 1. (See Fig. 3),

A temperature sensor S7 (see FIG. 3) is attached to the ceiling surface of the heat dissipation panel 373R made of aluminum to which a part of the high voltage electric component 371R is attached.

The temperature sensor S2 and the temperature sensor S4 are constituted by a pair of temperature sensors, and in the right heating coil 6R, a ferrite plate covering the lower surface of the metal container-shaped support frame 330R (preventing magnetic flux leakage). Plate) 331R, one temperature sensor S2B is attached to the outline center portion (near the outline center of the disk-shaped induction heating coil 220), and inside the support frame 330R and from the centerline of the support frame. Another temperature sensor S2A is disposed at a position slightly away from the cooling fan 262 side position described later.

Similarly, the temperature sensors S4A and S4B are provided at positions opposite to the temperature sensors S2A and S2B of the right heating coil 6R while sandwiching the left and right center lines of the main body 1.

In addition, the purpose of providing two temperature sensors in the left heating coil 6L and the right heating coil 6R in this way is from the cooling fans 262 and 315 described later in the inside of the support frame 330R, 330L. It is trying to detect temperature more accurately by measuring temperature in two places where the wind side and the center part of the bottom part of support frame 330R, 330L are separated.

Although the individual temperature detection states of the pair of temperature sensors S2A and S2B and the pair of temperature sensors S4A and S4B are different, and the reference temperature determined as the abnormal temperature is also different, the left heating coil 6L is different. The right heating coil 6R is a main heating means and also has a high temperature, and therefore, a pair of temperature sensors are provided and dually monitored.

Similarly, as shown in FIG. 3, in the left space 370L inside the main body 1, similar to the right space 370R, a plurality of high voltage electrical components (such as a power transformer or a high frequency inverter control circuit component) ( 371L cooling duct 372L and the temperature sensor S8 on the ceiling surface of the inlet, and the temperature sensor S9 on the ceiling surface of the heat dissipation panel 373L made of aluminum with high-voltage electrical components. I arrange each.

The circuit board 390 is provided inside the two cooling ducts 372R and 372L, and is supported by a plurality of leg portions 391 that hold the high voltage electric components 371R and 371L.

As shown in the cross-sectional view of FIG. 2, the inside of the main body 1 has a left partition plate 374L having dimensions extending from the inner bottom of the main body 1 to the ceiling surface so as to sandwich the heating chamber 19 from both sides. The right partition plate 374R is provided, and between the left partition plate 374L, the right partition plate 374R, and the left and right side walls of the main body case 2, the left space part 370L and the right space part 370R are provided. The compartment is formed.

The inverted U-shaped cross-section cooling duct 372R provided in the right space portion 370R is formed of a material having good thermal conductivity such as aluminum, and the cooling cooling fan 261 provided at the inlet portion at the inner side thereof. It is supported by the motor FM. At the time of driving the motor FM, as shown by an arrow F1 in FIG. 3 from the intake hole 375 formed in the rear right position of the main body case 2, the outside air is stored in the right space 370R. It is intended to be sucked.

Similarly, a cooling duct 372L having an inverted U-shaped cross-sectional shape is provided in the left space portion 370L, and a cold steel fan 263 and a motor FM are provided in the inlet portion from the inside thereof. At the time of FM) drive, outside air is sucked into the left space part 370L as shown by arrow F1 from the intake hole (not shown) formed in the back left position of the main body case 2.

Near the ceiling surface in front of the right space portion 370R, a cooling fan 262 having a casing 377R having a suction port 376R formed on the upper surface and the lower surface, respectively, is arranged horizontally, and the cooling duct 372 is provided. The air rising from the outlet portion of the gas is sucked in through the suction port 376R, and the upper portion of the upper space 275 of the metal partition plate 334 partitions the inside of the main body 1 up and down above the heating chamber 19. It extracts to each front part (as shown by arrow F3).

Similarly, near the ceiling surface in front of the left space portion 370L, a cooling fan 315 having a casing 377L having a suction port 376L formed on the upper surface and the lower surface, respectively, is arranged horizontally, and the cooling duct The air rising from the outlet of 372 is suctioned in the suction port 376L, and the upper space 275 of the metal partition plate 334 partitioning the inside of the main body 1 up and down above the heating chamber 19. Eject into the left front corner of the (as in arrow (F3)). The cooling fan 262 is provided in the rotating shaft 262B of the drive motor, and similarly, the cooling fan 315 is provided in the rotating shaft 315B of the driving motor.

The casing 377R of the cooling fan 262 penetrates through the window 379R provided in the right partition plate 374R. Similarly, the casing 377L of the cooling fan 315 penetrates through the window 379L provided in the left partition plate 374L.

In FIG. 5, the temperature data from each of the nine temperature sensors S1 to S9 is input to the energization control circuit 200 through the temperature detection circuit 311.

In addition, the fan drive circuit 260 always cools the fans 261, 262, 263, 315, and 316 in response to the temperature measurement situation from the temperature detection circuit 311 so that each temperature measuring portion does not become a high temperature above a predetermined temperature. Cooling by wind generated by driving). However, if it still rises above the predetermined temperature, the abnormal temperature signal is input to the electricity supply control circuit 200 from the temperature detection circuit 311, and the left heating coil 6L, the right heating coil 6R, or the electric heater 231 The power supply of the heating means such as) is cut off, limited, or a protection signal for safe operation is output from the energization control circuit 200 toward each heating means.

That is, the abnormality detecting means is composed of the energization control circuit 200, the temperature detection circuit 311, the current detection sensor 227, and the like. The operation of each of the cooling fans will be described later in detail.

In Fig. 2, the guide plates 378R and 378L are provided on the upper surface of the partition plate 334 at the front positions of the ejection openings 262A and 315A of the cooling fans 262 and 315, and have a V-shape for cooling. The cooling air from the fans 262 and 315 is distributed to each of the center display and input unit 80, the left heating coil 6L, and the right heating coil 6R.

That is, the air flow F3 cooling the center display / input unit 80 and the air flows F5 and F4 respectively cooling the left heating coil 6L and the right heating coil 6R on both sides are formed. . And finally, those air are exhausted from the right exhaust port 74 and the left exhaust port 75 as shown by the arrow F8 in FIG.

The pair of guide plates 380R and 380L are provided on the partition plate 275 in a H shape so as to narrow toward the rear side of the upper space 275 of the partition plate 334 toward the rear, and the air flows F4 and F5. , F6 is collected to directly under the exhaust ports 74 and 75.

4 is a cross sectional view of the heating cooker of FIG. 1. As shown in FIG. 4, a space between the bottom surface of the top plate 5 and the heat insulating material 300 covering the entire ceiling surface of the heating chamber 19 is The partition plate 334 is partitioned into two upper and lower spaces, and an upper space 275 and a lower space 274 are formed.

The blowing fan 314 is provided inside the lower space 274 inside and sucks indoor air from the intake hole (not shown) provided in the rear center of the main body case 2, and the heating chamber in the main body 1 ( 19) The wind is sent to the upper side (down space 275) in either a right turn or a left turn in a plane, and a wind flow F7 is formed below the down space 274, and finally discharged from the exhaust ports 74 and 75. I am trying to.

In addition, since the upper space 275 and the lower space 274 are partitioned by the partition plate 334, the duct (not shown), etc. until they reach the exhaust ports 74 and 75, they do not intersect on the way. Air flowing through the two spaces 274 and 275 is respectively discharged to the outside of the main body 1 without causing interference or the like.

Moreover, the two cooling fans 262 and 315 are provided so that the blowout | outlet may face the upper space 275 of the partition plate 270, and the air drawn in from the intakes 3761 and 376R similarly at the time of operation | movement. Is sent to the front part of the upper space 275.

As shown in FIG. 4, the liquid crystal substrate 280 which comprises the liquid crystal screen of the center display and input part 80 is provided in the front part of the upper space 275. As shown in FIG. The bottom surface side of the liquid crystal substrate 280 is covered with a heat insulating material 281, is stored in the metal case 282 with only the top surface opened, and holds a predetermined void 283 from the bottom surface of the top plate 5. It is fixed by the case 282 so that.

A large number of communication holes 271 are formed over the entire circumference of the case 282, and a portion of the wind from the cooling fans 262 and 315 passes above the liquid crystal substrate 280 so that the liquid crystal substrate has a high temperature. I do not want to. A plurality of heat dissipation fins 282A are integrally formed on the bottom face of the case 282 so as to be substantially parallel to the direction in which the wind flows (front and rear direction. To make it higher.

As shown in FIG. 4, when the large-sized (large diameter) pan N which cooked tempura, such as tempura, is put on the top plate 5 for a long time, especially the position of the pan is center-displayed rather than a normal position. If too close to the input 80, the heat from the pot N is centered. Since it becomes easy to be transmitted to the display part 80 and the temperature raises abnormally, the communication hole 271 is provided and the flow of cooling wind is improved.

Similarly, also in FIG. 4, the infrared LED 234 shown in FIG. 5 is disposed in the groove-shaped space 291 provided between the rear end of the liquid crystal substrate 280 and the heat insulating material 281. Although not shown, other infrared LEDs 235 and 236 are also placed in a line next to each other, and transmit the infrared drive signal through the top plate 5 in the direction of the ventilation device 239.

Moreover, an opening is provided in a part of the outer surface which comprises the upper wall surface of the frame 4, or the upper surface operation part 20, the opening is covered with an infrared ray transmitting material, and the said infrared ray LEDs 234-236 are below this transparent material. Some or all of these may be provided.

On the metal-clad board 292, various input switches of the upper operation part 20, for example, a plurality of switches operated by an operation switch operated by the operation button 92 or an input key 97, and an energization control circuit The electric component group 298 which concerns on the upper surface operation part 20, such as the microcomputer for "display" which is one of the main components which comprise 200, is mounted.

A plurality of communication holes 297 are formed in the attachment substrate 292 at regular intervals, and a part of the cooling air sent from the cooling fans 262 and 315 into the upper space 275 is communicated through the communication holes 297. It enters into the space 295 and prevents the electrical components 298 from becoming a high temperature under the influence of heat transmitted through the top plate 5.

As shown in FIG. 2, the case 282 around the core tablet substrate 280 and the top plate 5 around the case 282 are used for cooling air sent from the cooling fans 262 and 315. Since it is exposed to the flow F3, it is cooled. At the same time, the electrical parts 298 are also cooled.

The control board 299 fixes the electrical components 298 to the attachment board 292, and is fixed by the attachment leg 293. The wiring 93A connects the operation switches and the electrical components of the central operation unit 23, and the wiring 296 is connected to the function keys 83 and 95 to 99.

The sealing seal packing material 333 seals between the six function keys 83, 95 to 99 and the like and the frame 4, and the connecting line 93A of the switch 93 and the function key 97 The connecting line 296 is connected to the switches 298, respectively.

In FIG. 5, when the power supply control circuit 200 separates the electricity supply control circuit 200 from the commercial power supply 202 by the power switch 201, the spare power supply 400 supplies power instead of the commercial power supply. It consists of a rechargeable battery. Therefore, when an abnormality such as an abnormal current occurs electrically between the commercial power supply 202 and the energization control circuit 200, and remains dangerous as it is, when the energization control circuit 200 itself opens the power switch 201, The spare power supply 400 is connected and used.

In addition, although not shown, a nonvolatile semiconductor storage memory is built in the energization control circuit 200, and the information from the abnormality in the cooker to the interruption of the power supply is stored. This causes the electricity supply control circuit 200 to judge the last failure or abnormality the next time the cooker is started again, so as not to energize it unintentionally. In addition, a cooker or a maker of the cooker may read the fault history of the memory to assist in repair.

Next, the outline | summary of the operation | movement of the heating cooker which consists of said structure is demonstrated based on a flowchart. Hereinafter, each step is abbreviated as "ST".

18 is a flowchart illustrating the basic operation from powering on to starting cooking preparation. In FIG. 18, such an operation program is stored in a microcomputer inside the energization control circuit 200.

First, the power plug is connected to a 200 V commercial power supply, and the power switch 201 is pressed (ST-1).

Then, a predetermined low power supply voltage is supplied to the energization control circuit 200 via the constant voltage circuit 232 (ST-2).

Then, the energization control circuit 200 starts, self-diagnoses and checks its own control program, and when there is no abnormality, the drive circuit 260 of the cooling fan and the drive circuit of the left and right heating coils 6R ( 228 and the drive circuit 244 of the liquid crystal display part of the center display and input part 80 are respectively started (ST-3).

Further, the drive circuit 228 causes small power to flow through the left heating coil 6L and the right heating coil 6R, and checks that there is no abnormality in the circuit configuration in the state of the current (ST-4).

In addition, the drive circuit 260 starts to operate the cooling fans 261, 262, 263, 314, and 315 at a predetermined rated current (ST-5).

The temperature detection circuit 311 reads temperature data from each of the temperature sensors S1 to S9 provided at 11 points in total, and sends the data to the energization control circuit 200.

As described above, since the data such as the circuit current, the voltage, and the temperature of the main components are collected in the energization control circuit 200, abnormal heating determination is performed as abnormal monitoring control before cooking.

For example, when the temperature of the center display and input part 80 is 21 degrees C or less (49 degrees C or less) lower than the heat resistance temperature (for example, 70 degrees C) of the liquid crystal display part, it is determined that it is not abnormal high temperature (ST-7). ). On the contrary, when it becomes 50 degreeC or more, it determines with abnormal high temperature.

Next, the current detection sensor 227 detects a current flowing through the resonant circuit 225 formed of a parallel circuit of the heating coil 220 and the resonant capacitor 224, and this detection output is applied to the energization control circuit 200. It is supplied to the input. Then, when an undercurrent or an excessive current is detected in comparison with the normal current value due to any accident, poor conduction, or the like, the energization control circuit 200 determines that it is abnormal (ST-8).

When there is no abnormality determination by the above steps ST-7 and ST-8, the cooking start preparation is completed (ST-9).

However, when abnormality determination is performed, the process according to the process (1) at the time of abnormality is performed as shown in FIG. ·

The operation of the process 1 at the time of abnormality is shown in FIG.

First, it is determined whether or not the abnormal state can be corrected by the cooker from the abnormality content (ST-10).

For example, when the temperature of the center display / input part 80 is not lower than 20 ° C or lower than the heat resistance temperature (for example, 70 ° C) of the liquid crystal display part and is 15 ° C lower (that is, 55 ° C), the liquid crystal display part Pot is immediately cooled by a cooling fan 262 or on a top plate 5 near the top of the liquid crystal display of the central display / input unit 80 (for example, a pan immediately after frying). ) Is also considered, it is good to move the pot with attention to the user.

However, in the case of receiving abnormal data determined that the abnormal state cannot be directly corrected by the cooker itself (as described above, the user may be urged to move the pot), the abnormal display operation is immediately performed from ST-10. (1) It enters (ST-13).

Therefore, the abnormality correction processing is executed with respect to the abnormality information judged that the correction processing is possible. For example, as mentioned above, when the temperature of the center display and input part 80 is not lower than 20 degreeC or more lower than the heat resistance temperature (for example, 70 degreeC) of the liquid crystal display part, and is 15 degreeC lower (that is, 55 degreeC). Since the liquid crystal display is strongly cooled by the cooling fan 262, the supply power of both the cooling fan 261 and the cooling fan 262 is increased by 5% than usual to continue operation ( Execution of corrective action as above: ST-11).

Then, the cooling fan 261 and the cooling fan 262 are monitored at intervals of 30 seconds after the driving operation is strongly driven, and after a predetermined time elapses (for example, after 3 minutes), the central display / input unit ( When the detected temperature which measured the temperature of 80) with the temperature sensor S3 worsens before carrying out such corrective processing, and exceeds 60 degreeC, it determines with a "dangerous state" (ST-12).

Then, an alarm message indicating that the center display / input unit 80 is abnormally high is displayed on the liquid crystal display. Specifically, the abnormal content is displayed in the display area E by text (ST-13).

And if this abnormal high temperature does not resolve within 1 minute, for example, the electricity supply control circuit 200 will cool the cooling fan 261 until it falls to 49 degrees C or less (however, even if it is the longest, for example, 5 minutes). ) And the cooling fan 262, the connection is switched to the spare power supply 400, the power switch 201 is forcibly opened, and separated from the commercial power supply 202 (ST-14).

Thereby, the accident that the liquid crystal display part of the center display / input part 80 deforms or burns out at high temperature can be prevented beforehand.

Then, after a predetermined time (for example, 10 minutes) has elapsed from the time when the abnormality display (1) (ST-13) is displayed on the center display / input unit 80, the center display / input unit 80 Shut off the electricity (ST-14).

Then, the nonvolatile memory (not shown) of the electricity supply control circuit 200 stores the history from abnormal occurrence of ST-10 to ST-l4, abnormal temperature data, and the like (ST-15).

The abnormal processing 1 ends above.

Next, a description will be given of the case where the process is shifted to the cooking mode after the abnormality monitoring processing before cooking is finished in FIG. 18. 20 shows an example in which the right heating coil 60R (right IH) is used.

First, the operation dial 12R of the front operation part 10 is turned "rightward or leftward" (the fire power is set according to the amount of rotation (ST-16)),

The operation signal from the front operation part 10 is input to the electricity supply control circuit 200, and the various input key 95, etc. operation signals from the top operation part 20 are input to the electricity supply control circuit 200, and Cooking conditions such as level and heating time are set (ST-17).

The energization control circuit 200 drives the drive circuit 228 and drives the right heating means circuit 206R. In addition, since the center display / input unit 80 is driven by the drive circuit 244, cooking conditions such as thermal power and cooking time are displayed in the display areas C1 and C2 (ST-18).

Since the driving circuit 228 applies a driving voltage to the gate of the IGBT 225, a high frequency current flows through the heating coil 220 (ST-19).

As a result, the pot becomes high temperature by the high frequency magnetic flux from the heating coil 220 (ST-20).

After this, the electromagnetic induction overheating cooking operation (cooking mode) is entered (ST-21).

As shown in FIG. 20, the abnormality monitoring control during cooking includes three monitoring steps of the abnormal heating monitoring process (ST-22), the abnormal voltage monitoring process (ST-23), and the abnormal current monitoring process (ST24). Have

The abnormal heating monitoring process (ST-22) is the same as that shown in ST-7 of FIG. 18, but since the heating cooking is started, the left heating coil 6L, the right heating coil 6R, and the central heating are the causes of overheating. Means 7 and the like are added (however, in the example shown in FIG. 20, since the right heating coil 6R is used, the right heating coil 6R may be a likely cause of overheating).

In addition, the abnormal current monitoring process (ST-24) includes a case where a pot or the like which is inappropriate for induction heating is used as described above, or a case where an undercurrent or an excessive current is detected in comparison with a normal current value due to an accident or the like. One of the above measures is to control the IGBT 225 through the drive circuit 228 by the power supply control circuit 200 and to stop the power supply of the induction heating coil 220 in an instant.

The abnormal heating monitoring process ends when the electricity supply control circuit 200 receives the heating (cooking) end signal as shown in ST-25 or when the heating stop command signal from the user is received. When it determines with abnormality in this series of heating abnormality monitoring control, it processes by the abnormality process (2). This will be described separately with reference to FIG. 22.

The abnormality monitoring control is comprised by the two steps of the abnormality monitoring control in cooking of various heating means, and the abnormality monitoring control of the cooker main body 1, as shown in FIG.

The heating means abnormality monitoring during cooking performs ST-26 which is abnormality monitoring of the right heating coil 6R, ST-27 which is abnormality monitoring of the left heating coil 6L, ST-28 which is abnormality monitoring of the central heater 7, grill cooking, etc. It consists of ST-29 which is abnormality monitoring of the heating chamber 19.

In addition, abnormality monitoring control of the cooker main body 1 during cooking is temperature abnormality monitoring (ST-30) of the electric control board | substrate part (inside of the right duct 272R) on a main body, and the main body left electric control board | substrate part (left duct). Temperature abnormality monitoring (ST-31) of the internal display (272L) and temperature abnormality monitoring (ST-32) of the central display / input unit 80. This ST-32 is the same monitoring process as the above ST-7 (see FIG. 18).

Next, the process at the time of abnormality in an actual cooking process is demonstrated based on FIG. 23 to 35 showing transitions (screens 1 to 12) of the display screen of the center display and the input unit in the abnormal occurrence state.

When it is determined that "there is abnormality" in any of ST-26 to ST-32 of FIG. 21, it transfers to the "process at the time of abnormality (2)" of FIG.

For example, in ST-26, when the detection temperature of temperature sensor S2 becomes 280 degreeC, it is determined that it is abnormal high temperature. In ST-32, the detection temperature of the temperature sensor S3 is 21 ° C. or less (49 ° C. or less) lower than the heat resistance temperature (for example, 70 ° C.) of the liquid crystal display of the central display / input unit 80 (50 ° C.). When it becomes, it is determined that it is abnormal high temperature (as mentioned above, 280 degreeC and 50 degreeC are the determination reference values regarding each abnormality).

In the process (2) at the time of abnormality, abnormality visibility determination is performed initially (ST-34). The process (2) at the time of abnormality is the same as that of ST-10 of the abnormality determination of abnormality of FIG.

When it is judged in ST-34 that the abnormality is correctable, it is determined whether or not the abnormality is the heating means (left heating coil 6L, right heating coil 6R, central heating means 7 or the like) next. do.

That is, when a heating instruction is given to the specific heating means (for example, right heating coil 6R) before this, and it was cooking heating at the time of abnormal occurrence, abnormality monitoring step (ST-26) of the said heating means. From the above information, it can be determined that the right heating coil 6R is the source of abnormality.

In addition, similarly, when the abnormal current is sent to the electricity supply control circuit 200 from the current detection sensor 227 of the right heating means circuit 206R, it can be determined that the right heating coil 6R is an abnormal generation source.

When it is determined that an abnormality has occurred in the heating means, the display area of the abnormality heating means is enlarged in the central display / input unit 80 as shown in ST-36. For example, when abnormality occurs in the right heating coil 6R, the display area C2 is enlarged (screens 3 and 4). If it is determined that no abnormality has occurred in any of the heating means (it can be seen that all the heating means are stopped), for example, when the temperature of the central display / input portion 80 has risen abnormally, the display area F The area of 까지 is enlarged to several times, and the contents of the error are specified in the area (see ST-37, screen 2).

After maintaining the enlarged state of the display area C2 (for example, after a few minutes) for a user to fully recognize the state, the display area C2 is automatically returned to the screen display of the original area area and displayed on the screen 4. As described above, under the name of the right heating coil 6R in which an abnormality is occurring, a warning indication "high temperature abnormality" is displayed in red letters or the like. In addition, the screen may be returned to its original state when the user confirms sufficiently and performs the confirmation key operation without automatically returning to this screen 4.

Alternatively, the screen 4 and the screen 5 may be switched at a speed (predetermined time) interval that the user can visually check, and the screens may be displayed alternately. Such display is performed, and a message for alerting, cooperating, or confirming to correct the abnormal state is requested in the display area E. FIG. In the example of the screens 4 and 5, the upper part of the exhaust ports 74 and 75 (refer FIG. 1) of a main body is blocked by cooking utensils, etc., or a cloth or other thing is behind the intake hole 375 (refer FIG. 3). Be careful not to block it.

Next, the abnormality correcting process is executed in ST-39 with respect to the abnormality determined as abnormality correctable. For example, when it is determined that the right heating coil 6R is abnormally faulted, the energization control circuit issues a correction command in the following procedure.

1) In order to increase the rotation speed of the cooling fan 262 cooling the heat generating coil of the right heating means and the cooling fan 261 on the upstream side thereof, the amount of energization is compared in the normal operation ( 5%), for example, to increase the cooling air volume. If the improvement does not occur even after continuing this state for 1 minute,

2) Lower the heating power (power) of the heating means (from what the user sets). For example, from the bottom of 1st stage, below 300W, or 10% of the thermal power, down to the maximum thermal power (when using 3KW thermal power, lower it to 2.7KW). In addition, as shown in the screen 5, the display area C2 indicates that the thermal power is automatically lowered. (In addition, it is an effective measure to repeat such a thermal power down process several times. The case of a decompression process will be described).

Within a predetermined short time from the state of the screen 4 or the screen 5 (from the time when abnormality occurs in the right heating coil 6R and the display area C2 is enlarged, for example, within 1 to 3 minutes) In order to confirm whether or not the high temperature abnormality condition has been eliminated, the energization control circuit 200 again determines the presence or absence of abnormality again (ST-40).

Moreover, since temperature detection itself is performed every few seconds, and the electricity supply control circuit 200 judges the presence or absence of abnormality every time, even if it is within 1 minute, the detection temperature of the temperature sensor S2 of the right heating coil 6R will be When the detected temperature of the predetermined temperature (for example, at 300 ° C.) or the temperature sensor of the liquid crystal display reaches a predetermined temperature (for example, 70 ° C.), the energization control circuit 200 determines whether or not there is more than that in the judgment process (ST). -40), it is determined as a "dangerous state" (ST-41).

When the abnormal state is determined, as shown in the screen 6 or the screen 7, the energization of the right heating coil 6R is stopped (ST-42).

Therefore, when the user looks at the screen 6, the screen 7 and the screen 8, it becomes the state which can understand easily that it stopped automatically by the temperature abnormal rise.

In the re-determination process (ST-40A), below the determination reference value determined as abnormal in ST-26-32 of FIG. 21 (for example, the temperature of the right heating coil 6R is less than 280 degreeC, and also displays central display. As long as the temperature of the input unit 80 does not return to 49 ° C. or lower, the processing is performed in the ST-40 of the refining process without returning to the normal heating cooking operation (normal cooking mode, see ST-21 of FIG. 21). Repeat the turn. When it is determined that it returned below the determination reference value, it returns to ST-21 of FIG. 20, Then, the heating means abnormality monitoring and main body abnormality monitoring shown in FIG. 21 are performed continuously during cooking,

Moreover, the electricity supply stop command of the right heating coil 6R is issued, and the electricity supply of the right heating means is stopped (ST-44).

However, the cooling fan 262 cooling the heating coil of the heating means continues to operate for 2 to 5 minutes thereafter (however, an abnormal current from the cooling fan 262 is detected, such as that of the cooling fan itself). When it is determined that the failure is found, the energization to the cooling plate is also stopped at the same time, and the operation duration time is determined by conditions such as the temperature rise until the shutdown of the electricity supply, the room temperature, and the magnitude of the operating power of the heating means. Correspondingly, the energization control circuit 200 determines from a predetermined calculation formula or a numerical table).

Thereby, the overshoot problem that the right heating coil 6R rapidly rises in temperature immediately after the blowing stop from the cooling fan 262 can also be prevented. Moreover, even if the temperature of the center display / input part 80 becomes high, it can be prevented.

On the other hand, when the central heating means 7 is also used during the use of the right heating coil 6R, the cooling fan 315 is also operated simultaneously with the operation of the cooling fan 262. Even if the energization of the coil 6R is stopped, the cooling fan 262 continues the operation.

This is because, as shown in FIG. 2, the central heating means 7 becomes high temperature in a short time after the start of energization. Therefore, if the air around the heating means 7 is not cooled, the upper space 275 This is because the rear part and the top plate 5 become high temperature. However, since the right heating coil 6R is different from the situation in which the right heating coil 6R is being used for the reinforcing force (for example, 3KW), the right heating coil 6R stops heat generation, so the operation of the cooling fan 262 on the left side is Continue by switching to weak operation.

In addition, in the cooling fan 261 operated in synchronization with the cooling fan 262, the heating coil 6R is energized and stopped, and the electric component 371R constituting the power supply part is in a state in which self-heating does not occur. Therefore, it switches to the weak operation automatically.

The effect is displayed on the display area of the heating means stopped in the abnormal state. For example, when the right heating coil 6R is stopped at an abnormally high temperature, the screen 6, the screen ( As shown in the screen 8 via 7), the effect of abnormally high temperature stop is displayed on the display area C2 in which the area is enlarged (ST-46).

In addition, after continuing display for a predetermined time in this state, the area of the display area C2 returns to an extent equivalent to the display area A2 of the other heating coil 61 as shown on the screen 9, Confirmation of the cooking progress and the setting conditions of the other heating means can be performed as usual. Also in this case, as shown in the screen 9, the right heating coil 6R displays that it is stopped at abnormal high temperature, and neither "right IH" is displayed on any of the display keys 84,100-104. (As shown in the screen 9).

In addition, in the state of the screen 9, when the heating time of the left heating coil 6L is to be changed, for example, when the function key 95 corresponding to the display key 100 marked with "left IH" is pressed, The screen changes to the screen shown in the screen 10. When the setting time is to be changed in the state of the screen 10, when the function key 97 corresponding to the display key (→) 102 to increase the time is pressed, the time is changed from 20 minutes in one minute to the time frame after the change. The added number appears.

At the same time, the information used for key operation is displayed in the guide area E. FIG. For example, when setting to 25 minutes, when the screen of "25" is reached, when the function key 98 corresponding to the display key 103 corresponding to the determination key is pressed, the value is changed to 25 minutes, The remaining time is also changed automatically with the time after the change.

For example, if the above time change is made quickly, the display of 10 minutes of remaining time is changed to 15 minutes and is displayed as "the remaining time has also changed" (state of the screen 12). As shown in the screen 11, the area of the display area A2 of the left heating coil 6L is automatically enlarged so that a user can easily confirm or input cooking time.

In addition, when a dangerous state occurs in the state in which neither heating means operates, as shown in the screen 2, for example, when the liquid crystal screen part of the center display / input part 80 becomes abnormally high temperature, Make sure the hot pot is not on top plate. Please confirm whether the pot being heated by the central heater is in a predetermined position ”or the like (ST-43).

Then, the energization control circuit 200 switches the power supply to the reserve power supply 400, and cuts off the commercial power supply 202 (ST-53).

Further, the abnormal display is continued after a predetermined time, and then the driving of the center display / input unit 80 is automatically stopped, and the display on the liquid crystal screen is erased (ST-47).

As described above, in Embodiment 1, display means commonly used for at least two or more heating means (left heating coil 6L, right heating coil 6R, central heating means 7) is provided. Input means for inputting cooking conditions such as heating amount and heating time of the heating means, display means for displaying on the screen the cooking conditions of the plurality of heating means input from the input means, and the heating means and the heating means. The control means which detects abnormal driving conditions of other electrical components, and controls those heating means, an electrical component, and a display means,

On the display screen of the said display means, the display area corresponding to each heating means is prepared,

The control means displays the heating conditions of the heating means in the display area while the heating means and the electric component are normally operated, and responds to the heating means related to the abnormality in a state where an abnormality occurs in the heating means. In the above display area, occurrence of more abnormality is displayed,

In a state where an abnormality has occurred in the electrical component, the abnormality is displayed in a guide area different from the display area on the display screen of the display means.

Therefore, in the cooker which can cope with various kinds of cooking, the cumbersome confirmation of cooking conditions and the situation of cooking execution can be performed while viewing the common screen. In addition, since the abnormality occurrence state of each heating means and electric component is also displayed on the screen, the user can recognize the occurrence of abnormality quickly and easily even during cooking, and the safety is improved.

In addition, even when the cooking means automatically stops the heating means or other electric parts in response to an abnormal state such as abnormal heating, the user can be notified that the user is in the stopped state, so as not to cause unnecessary confusion. .

Moreover, if display means, such as a liquid crystal display surface, is provided in the upper surface part (including the lower side of a top plate) of a cooker, it will be easy for a user to visually recognize it even in the middle of cooking, but the upper surface of a cooker is a heating space (pot) by a plurality of heating means. Space, etc.), and a method of simply increasing the display means and increasing the display area in order to increase the amount of information of the display cannot be employed. However, in the first embodiment, since one screen is effectively utilized in setting or confirming cooking conditions and scenes of indicators of abnormal conditions, the function as display means can be used even when the heating space is limited as described above. It becomes possible to exhibit enough.

In addition, in the center display / input unit 80, when the cooking conditions of only the specific heating means are displayed, the guide area 81E in which reference information, such as precautions specific to the cooking or the type of the heated object is automatically displayed, is displayed. In addition, since the information on the abnormality and the information on the countermeasures are displayed in the abnormality in this guide area, the input operation and cooking of the cooking conditions can be provided, and the convenience is improved, Attentions such as countermeasures and usage methods that do not operate abnormally can also be provided, and a user can be provided with a more safe and safe environment.

Embodiment 2.

In the heating cooker (not shown) according to Embodiment 2 of the present invention, when an abnormality occurs in any one of the heating means, the screen of the display area of the heating means changes to a color and brightness different from those of the other heating means. In addition, an abnormal state is displayed in the display area by a character, a figure, or the like.

Specifically, for example, the corresponding display area A2 of the left heating coil 6L, the corresponding display area B2 of the central heating means 7, and the corresponding display area C2 of the right heating coil 6R. ) And the entire area of the display area A2, B2, C2 of the heating means in which the abnormality occurred is yellow when an abnormality occurs in any one of the respective heating means. In the case of a serious or dangerous condition that requires a change of caution and the cooker to stop, the yellow indication area shall be displayed in orange color.

That is, the user can easily understand what is different from usual by changing the color of the screen of the display area as "blue → yellow → orange". In addition, the part of the guide area E may also change the color at the time of normal operation and the color after abnormality detection clearly, and may raise the alert effect and visual effect to a user.

In addition, in the present invention, the means for enhancing the effect of alerting the user is not limited to the one shown in the drawings, and the area of the display area may be varied or the illuminance may be changed (including flashing) depending on the above degree. good.

Since the heating conditions of cooking can be set on a common screen and the heating conditions and abnormal conditions can be confirmed easily and reliably, this invention can be utilized widely as various heating cookers for business and home use.

BRIEF DESCRIPTION OF THE DRAWINGS The whole perspective view of the heating cooker which shows the state 1 of embodiment of this invention.

FIG. 2 is a cross-sectional view of the upper portion of the heated cooker shown in FIG. 1. FIG.

3 is a longitudinal sectional view taken along the line Y-Y shown in FIG. 2;

4 is a plan view of a main part of the upper operation part and the center display and the input part of the heating cooker shown in FIG. 1;

FIG. 5 is a diagram illustrating an electrical circuit in the heating cooker shown in FIG. 1. FIG.

6 is a plan view of the main body center display and the input unit and the upper surface operation unit of the heating cooker shown in FIG. 1;

FIG. 7 is a schematic diagram illustrating display area divisions of a center display and an input unit of the heating cooker illustrated in FIG. 1. FIG.

8 is an explanatory diagram of a relationship between a display screen of a center display and an input unit and input keys (No. 1).

9 is an explanatory diagram of a relationship between a display screen of a central display and an input unit and input keys (No. 2).

10 is an explanatory diagram of a relationship between a display screen of a center display and an input unit and input keys (No. 3).

11 is an explanatory diagram of a relationship between a display screen of a center display and an input unit and input keys (No. 4).

12 is an explanatory diagram of a relationship between a display screen of a center display and an input unit and input keys (No. 5).

13 is an explanatory diagram of a relationship between a display screen of a center display and an input unit and input keys (No. 6).

14 is an explanatory diagram of a relationship between a display screen of a center display and an input unit and input keys (No. 7).

15 is an explanatory diagram of a relationship between a display screen of a central display and an input unit and input keys (8).

Fig. 16 is an explanatory diagram of a relationship between a display screen of a center display and an input unit and input keys (Fig. 9).

17 is an explanatory diagram of a relationship between a display screen of a center display and an input unit and input keys (No. 10).

18 is a flowchart (part 1) for explaining the control operation of the abnormal occurrence state.

19 is a flowchart (part 2) for explaining the operation of the abnormal occurrence state.

20 is a flowchart (part 3) for explaining the operation of the abnormal occurrence state.

21 is a flowchart (4) for explaining the operation of the abnormal occurrence state.

22 is a flowchart (5) for explaining the operation of the abnormal occurrence state.

23 is an explanatory diagram of a screen 1 displayed by a center display and an input unit in an abnormal occurrence state;

24 is an explanatory diagram of a screen 2 displayed by a center display and an input unit in an abnormal occurrence state;

25 is an explanatory diagram of a screen 3 displayed by a center display and an input unit in an abnormal occurrence state;

FIG. 26 is an explanatory diagram of a screen 4 displayed by a center display and an input unit in an abnormal occurrence state; FIG.

27 is an explanatory diagram of a screen 5 displayed by a center display and an input unit in an abnormal occurrence state;

28 is an explanatory diagram of a screen 6 displayed by a center display and an input unit in an abnormal occurrence state;

29 is an explanatory diagram of a screen 7 displayed by a center display and an input unit in an abnormal occurrence state;

30 is an explanatory diagram of a screen 8 displayed by a center display and an input unit in an abnormal occurrence state;

FIG. 31 is an explanatory diagram of a screen 9 displayed by a center display and an input unit in an abnormal occurrence state; FIG.

32 is an explanatory diagram of a screen 10 displayed by a center display and an input unit in an abnormal occurrence state;

33 is an explanatory diagram of a screen 11 displayed by a center display and an input unit in an abnormal occurrence state;

34 is an explanatory diagram of a screen 12 displayed by a center display and an input unit in an abnormal occurrence state;

35 is an explanatory diagram of a screen 13 displayed by a center display and an input unit in an abnormal occurrence state;

(Explanation of symbols for the main parts of the drawing)

1: heating cooker body

5: top plate

6R: Wu heating means

61: left heating means

7: central heating means

10: front control panel

19: heating room

20: top control panel

21: control panel

22: control panel

23: central control panel

40R: thermal power indicator lamp

40L: Thermal Power Display Lamp

70: door

80: center display, input unit

91: input key group

83: input key

95 to 99: input key

84: display key

100 to 104: display key

200: energization control circuit (control means)

201: main power switch

206R: Wu heating means circuit

2061: left heating means circuit

207: circuit for central heating means

208: Circuits for heating means for grills and ovens

260: fan drive circuit

261: cooling fan

262: cooling fan

263: cooling fan

274: downward space

275 upper space

280: liquid crystal substrate

S1 to S9: temperature sensor

311: temperature detection circuit

315: cooling fan

316: cooling fan

A1: 1st display area

A2: second display area

B1: 1st display area

B2: second display area

C1: first display area

C2: second display area

E: Guide Area

Claims (14)

A plurality of heating means which are independent of each other in order to perform heating cooking, A plurality of input means for inputting a cooking condition to each of the plurality of heating means, Detecting means for detecting abnormality occurring in the plurality of heating means, Display means for displaying respective cooking conditions of the heating means input from the plurality of input means, detection information detected by the detection means, Control means for controlling the heating means and the display means, On the display screen of the said display means, the several display area corresponding to each of the said some heating means is prepared, The control means displays the input cooking conditions in the display area corresponding to the heating means in a state in which the control means is operated normally among the heating means operated among the plurality of heating means, and an abnormality has occurred. In the state, abnormality is displayed in the said display area corresponding to the said heating means which an abnormality generate | occur | produced, The heating cooker characterized by the above-mentioned. The method of claim 1, The input means is to select a cooking menu and to key in a cooking condition including a heating amount, The control means selects a mode for simultaneously displaying cooking conditions of at least two heating means on the screen of the display means, and a mode for displaying cooking conditions for only the specific heating means on the screen of the display means. A heat cooker characterized by the configuration possible. The method according to claim 1 or 2, When an abnormality occurs in any one of the said heating means, the said control means enlarges the area of the display area in which the cooking conditions of the heating means concerning the said abnormality were displayed at the time of normal operation to a larger area, And displaying the generated abnormality information in the enlarged display area. The method according to claim 1 or 2, When a mode for displaying cooking conditions of only specific heating means among the heating means is selected, The control means enlarges the area of the display area for simultaneously displaying the cooking conditions of at least two or more of the heating means on the screen of the display means to a wider area, thereby providing the enlarged display area of the specific heating means. A heating cooker which displays cooking conditions. The method according to claim 1 or 2, A region for displaying cooking conditions of the heating means, a first display area for displaying a heating amount setting condition of the heating means, and a second non-heating amount setting condition including a cooking time or a set temperature of the heating means; Equipped with a display area, And when an abnormality occurs in the heating means, indicating that an abnormality occurs in the second display area. The method according to claim 1 or 2, And a guide area on the display screen of the display means for displaying the reference information about the conditions and environment of the heating cooking, the proper use method, and the cooking utensils during the normal operation in letters. The method according to claim 1 or 2, In said display means, the operation state of the said heating means is displayed in addition to the cooking conditions of the said heating means, The control means includes a mode for simultaneously displaying cooking conditions and operating states of at least two or more of the heating means on a screen of the display means, and cooking conditions and operating states of only specific heating means among the heating means. And a selectable mode for displaying on the screen of the heating cooker. A plurality of heating means for performing heating cooking, Input means for inputting cooking conditions such as heating amount and heating time of the heating means; Display means for displaying cooking conditions of the heating means input from the input means; A control means for detecting an abnormal driving situation of the heating means and controlling the heating means and the display means, On the display screen of the display means, a display area corresponding to each of the plurality of heating means is prepared, The control means displays the heating conditions of the heating means in the display area corresponding to the heating means with respect to the heating means in a state of being normally operated, and with respect to the heating means in a state in which an abnormality has occurred. To display that the abnormality is occurring in the display area corresponding to the heating means related to the abnormality. The control means is configured to enable two-step correspondence in response to the contents or the risk of the abnormal state that has occurred, In the first step of the second step, the heating means is controlled to correct the abnormality, In the second step of the second step, the heating means in which abnormality occurs is stopped and the stopped heating means is displayed on the display means. The method of claim 8, The input means is to select a cooking menu and to key in a cooking condition including a heating amount, The control means displays a mode for simultaneously displaying at least two cooking conditions of the heating means on the screen of the display means, and cooking conditions for only the specific heating means in the heating means on the screen of the display means. Configure the mode to select, And the control means disables the input of the input means immediately after the stop and prevents restarting of the heating means which has stopped abnormally. The method according to claim 8 or 9, In the display means, an operation state of the heating means is displayed in addition to the cooking conditions of the plurality of heating means, The control means is configured to display a cooking condition and an operating state of at least two or more heating means on the screen of the display means at the same time, and display a cooking condition and an operation state of only the specific heating means on the screen of the display means. Heating cooker characterized in that the mode can be configured to be selected. A plurality of heating means for performing the heating cooking; Input means for selecting a cooking menu to be performed using the heating means and keying in a control condition including a heating amount; Display means for displaying a control condition input from the input means; A control means for detecting abnormal driving conditions and controlling the heating means and the display means, The display means includes: a first display area for displaying first conditions relating to respective heating amounts of the heating means; Providing a second display area for displaying a second condition relating to an unheated amount including each cooking time and a set temperature of the heating means and a physical quantity abnormality state including temperature, current, and voltage at the time of abnormality, When an abnormality occurs in the specific heating means in which the second condition is set, the area of the second display area corresponding to the heating means in which the abnormality occurs is larger than the second display area area corresponding to the other heating means. and, The abnormal state is displayed in the enlarged second display area, and at one or both sides of the first display area or the second display area of the other heating means, the first condition or the second condition of the other heating means. A heating cooker displaying one or both sides. A plurality of heating means for performing heating cooking, Input means for selecting a cooking menu to be performed using the heating means and keying in a control condition including a heating amount; Display means for displaying a control condition input from the input means; A control means for detecting an abnormal driving situation and controlling the heating means and the display means, The control means includes, on a display screen of the display means, a first display area for displaying a first condition relating to each heating amount of the heating means, each cooking time of the heating means, and a set temperature. A second display area for displaying a second condition relating to the unheated amount and a physical quantity abnormality state including temperature, current, and voltage at the time of abnormality, When the abnormality occurs in the specific heating means in which the setting state of the second condition is set, the control means is configured to adjust the area of the second display area corresponding to the heating means in which the abnormality occurs to correspond to the other heating means. It is made bigger than area of 2 indication areas, Information of the heating means in an abnormal state and information of the first condition or the second condition of the other heating means displayed on one or both sides of the first display area or the second display area of the other heating means are displayed at the same time. The first screen, Preparing a second screen displaying information of the heating means in an abnormal state, The said 1st screen or the said 2nd screen is displayed alternately by the said control means in the said expanded display area, The heating cooker characterized by the above-mentioned. The method of claim 12, In the second screen, the information of the heating means in an abnormal state is displayed by adding the reference information, the cause of the abnormality, and related information including an inspection item to the information on the first screen. . The method according to claim 12 or 13, The control means is configured to enable two-step response in accordance with the contents or the risk of the abnormal state, In the first step of the second step, the heating means is controlled to correct an abnormality. In the second step of the second step, the heating means in which an abnormality occurs is stopped, and the stopped heating means is displayed on the display means. Heating cooker characterized in that.

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