JPH11185953A - Heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect the occurrence of the defective operation or operation stop of electrical equipments. SOLUTION: This cooking device is provided with a current transformer 36 detecting the current consumption of electrical equipment, and a current reference value is stored in a ROM of a control circuit 21. A display unit 22 is controlled by the control circuit 21. When the detected result of the current consumption exceeds a current reference value, the control circuit 21 operates the display unit 22 to report that a defective operation or an operation stop occurred in the electrical equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooking device capable of detecting the use status of electrical components such as a magnetron, a heater and a fan.

[0002]

As is well known, a heating cooker includes a main body having a heating chamber formed therein and various electric components. The electrical components include a magnetron, a high-voltage transformer, a cooling fan for cooling the magnetron and the high-voltage transformer, a turntable motor for rotating a rotating net and a rotating plate mounted thereon, an interior light, an upper heater, There is a lower heater and the like.

[0003] The heating mode of heating cooking is as follows.
Broadly speaking, there are a microwave cooking mode, an oven cooking mode, and a grill cooking mode. The microwave cooking mode is a mode in which microwaves are generated in a magnetron using a high-pressure transformer or the like, and the microwaves are used to heat food in a heating chamber.In this case, a turntable motor is energized to rotate the food. The food on the plate is rotated, and the cooling fan is also driven.

[0004] In the oven cooking mode, food is heated by energizing the upper heater and the lower heater, energizing the interior lamp, and further driving the turntable motor. The range cooking mode is a heating mode in which the upper heater is energized and the interior lamp is energized.

[0005] By the way, each electrical component used in the cooking device may stop operating or malfunction for some reason. However, in the related art, it is almost impossible for each electrical component to detect an operation stop or an operation failure, which hinders heating and cooking, and may cause a cooking failure or the like. In this case, if the user notices an operation stop or malfunction of the electrical component, the user can repair the component and perform a component replacement so that the heating cooker can be reused. In some cases, repairs and parts replacement were delayed. The causes of the electrical equipment of the cooking device to stop operation or malfunction may be a sudden situation (careless handling, etc.) or a severe usage environment of the cooking device (high temperature, high humidity, narrow installation environment). ) Or the service life of electrical components.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to detect that an electric component has stopped operation or has caused a malfunction, thereby preventing cooking from failing. Another object of the present invention is to provide a heating cooker capable of promptly taking measures such as repair and replacement of parts.

[0007]

According to the investigation by the present inventors, the following has been found. That is, when the electrical components stop operating or malfunction, the current flowing through the electrical components, that is, the consumption current, tends to increase. Further, the magnitude and the degree of increase of the current consumption differ depending on the type of the electrical component. Therefore, if a current reference value corresponding to an operation stop or malfunction is set for each or a plurality of electrical components, and if the current consumption of each electrical component or a plurality of electrical components is detected based on the current reference value, In addition, it is possible to detect the stoppage of operation of the electrical component or the occurrence of a malfunction. Claims 1 and 2
The present invention has been made focusing on such a point.

According to the first aspect of the present invention, there is provided a heating chamber for accommodating food, an electrical component related to heating of the food, a heating and cooking control means for controlling the drive of the electrical component to execute cooking.
Current detection means for detecting current consumption, storage means for storing a current reference value for the current consumption of each of the electrical components or a plurality of electrical components, a notifying means, and energizing each of the electrical components or the plurality of electrical components And a usage state detecting unit configured to detect current consumption by the current detecting unit and cause the notifying unit to perform a notification operation when the detection result exceeds the current reference value.

In the above arrangement, the current consumption is detected by the current detecting means by supplying current to the electrical components individually or to a plurality of electrical components, and it is determined whether or not the detection result exceeds a current reference value. Accordingly, it is possible to determine whether or not the electrical component has caused an operation stop or an operation failure. Then, when the detection result exceeds the current reference value corresponding to the electric component, the notifying unit performs the notifying operation, so that the user can recognize the stop of the operation of the electric component or the occurrence of the malfunction. As a result,
Cooking failure can be eliminated, and measures such as repair and parts replacement can be quickly taken.

[0010] The invention according to claim 2 is a heating chamber for accommodating food, electric equipment related to heating of the food, current detecting means for detecting current consumption, and a predetermined heating mode by controlling the driving of the electric equipment. Heating cooking control means for executing heating cooking,
A storage unit that stores a current reference value for a consumption current in the cooking in the heating mode, a notifying unit, and a consumption current detected by the current detection unit when heating is performed in the heating mode, and the detection result is the A use state detecting unit configured to notify the notifying unit when the current reference value is exceeded.

When a food is cooked by heating, the electrical components driven by the heating mode also differ.
At the time of heating cooking in the heating mode, if the entire current consumption is detected, it is possible to determine whether the operation of the electrical components used in the heating mode has been stopped or an operation failure has occurred. However, in the above configuration, when the heating is performed in the predetermined heating mode, the current consumption is detected by the current detection unit, and the notification unit is notified when the detection result exceeds the current reference value. It is possible to determine the occurrence of operation stoppage or malfunction of electrical components used in the mode, so that cooking failure can be eliminated, and measures such as repair and replacement of parts can be taken promptly Becomes

According to a third aspect of the present invention, there is provided an accumulating means for accumulating the execution time of the cooking, a time reference value storing means for storing a time reference value for the accumulated time of the heating cooking, and an accumulating time by the accumulating means. The present invention is characterized in that an auxiliary use status detecting means for informing the notifying means when the reference value is exceeded is provided. The third aspect of the present invention focuses on the following points. The cause of the stoppage of operation or malfunction of the electrical component includes a service life other than a sudden one. When the electrical component is used in cooking in a predetermined heating mode, the expiration time of the normal use life of the entire electrical component can be determined by the used time, that is, the accumulated time of the heating cooking execution time. It is possible. Thus, in the above-described configuration, the execution time of the heating cooking is integrated, and when the integrated time exceeds the time reference value, the notifying means is operated to perform the notification. The life can be determined.

According to a fourth aspect of the present invention, as the heating mode, a combined mode in which different types of single heating modes are combined is provided, and a unique current reference value for the current consumption when executing each of the single heating modes is stored. A single current reference value storage means for detecting current consumption when performing the cooking in the combined mode, and comparing the detection result with the current reference value to determine the type of the single heating mode being executed; Heating mode determining means, integrating means for individually integrating the execution time of the single heating mode determined by the heating mode determining means,
A time reference value storing means for storing a time reference value for the integrated time of each of the single heating modes, and a type of the single heating mode being executed by the heating mode determining means when the heating is performed in the composite mode. The present invention is characterized in that an auxiliary use status detecting means for informing the notifying means when the accumulated time of the determined single heating mode exceeds the time reference value is provided.

[0014] The invention of claim 4 focuses on the following points. Some heating cookers have a combined mode in which different types of single heating modes are combined as a heating mode (for example, a combined mode includes a microwave cooking mode first, then an oven cooking mode). is there). In the cooking in such a combined mode, since different single heating modes are mixed, simply calculating the execution time of the combined mode and comparing the accumulated time with the time reference value determines the appropriate service life. Is difficult to do.

On the other hand, according to a study by the present inventors, it has been found that the overall current consumption when heating and cooking is performed in one single heating mode is different from that in another single heating mode. Was. Therefore, it has been found that it is possible to determine the type of the single heating mode currently being executed from the current consumption value.

Thus, in the above configuration, the current consumption is detected at the time of performing the cooking in the combined mode, and the detection result is compared with the current reference value to determine the type of the single heating mode being performed. Thus, the type of the single heating mode being executed can be automatically determined. Then, since the determined execution times of the single heating mode are individually integrated, the execution time can be integrated for each single heating mode even in the combined mode. Then, at the time of performing the heating in the combined mode, since the notification means also performs the notification operation even when the integrated time of the single heating mode exceeds the time reference value of the single heating mode, each of the mixing modes, The overall service life of the electrical component can be determined for each single heating mode.

According to a fifth aspect of the present invention, there is provided a trend data storage means for storing, as reference trend data, a tendency of a change in current consumption with time associated with the cumulative time of heating cooking, an integrating means for integrating the execution time of the heating cooking, At the time of performing the heating cooking, the execution time is integrated by the integration means, the current consumption is detected by the current detection means, and the notification means is notified when the integration time and the detection result of the current consumption are out of the reference tendency data. It is characterized in that an auxiliary use situation detecting means for causing the auxiliary use situation is provided.

The invention of claim 5 is made by focusing on the following points. That is, according to the investigation by the present inventors,
The following was found. One of the causes of the stoppage or malfunction of the electrical components is the service life. However, if the environment in which the cooking device is used is hot and humid or in a narrow installation environment (often at high temperatures), There is an abnormality that causes the operation to stop or malfunction when the product is much earlier than the normal service life. However, even in this case, the phenomenon that the current consumption increases near the time when the operation is stopped or the operation failure is caused is shown. In other words, when the usage environment is hot and humid, or when the installation environment is narrow, the change in the current consumption over time shows a different tendency than when the service life is reached under normal usage conditions. I understood.

In the above configuration, when the cooking is performed, the execution time is integrated, the current consumption is detected, and the notification unit is notified when the integrated time and the current consumption detection result deviate from the reference tendency data. Since the drive is performed, an abnormality due to a cause other than the normal service life can be detected at an early stage and can be notified.

According to a sixth aspect of the present invention, the use state detecting means comprises:
The feature is that when the notification means is operated to perform the notification operation, the subsequent heating and cooking are stopped continuously. In this configuration, when the notifying unit is operated to notify, that is, when the electric component stops operating or malfunctions, the heating and cooking is continuously stopped to supply power to the electrical component that caused the malfunction or operation stop. Can be prevented and the deterioration of the situation can be surely prevented.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. First, FIG.
FIG. 4 to FIG. 4 show the configuration of the heating cooker 1 according to the present embodiment. An inner box 3 is provided in an outer box 2 of the heating cooker 1, and the inside of the inner box 3 is a heating chamber 4. Also,
A door 5 for opening and closing the heating chamber 4 is provided on the front surface of the outer box 2. A rotating net 6 made of an iron plate is provided at the bottom of the heating chamber 4, and a rotating dish 7 made of heat-resistant glass for supporting food as described later (see FIG. 4). Is set. Although not shown, a top plate used for “oven cooking” or “grill cooking” can be set in the heating chamber 4 in a detachable manner.

As shown in FIG. 4, the rotating net 6 (rotating dish 7) is rotated via a shaft 9 by a turntable motor 8 provided at an outer bottom portion of the heating chamber 4. ing. Further, an upper heater 10 composed of a tube heater is provided at the ceiling of the heating chamber 4, and a lower heater 11 composed of a flat heater is provided at the bottom of the heating chamber 4. The food is heated by the upper heater 10 and the lower heater 11.

As shown in FIG. 3, a machine room 12 is provided in the outer box 2 at a position adjacent to the right of the heating chamber 4. In the machine room 12, a magnetron 13 and a high-voltage transformer 14 are provided, and a cooling fan 15 for cooling the magnetron 13 and the high-voltage transformer 14 is provided. The magnetron 13
Is supplied into the heating chamber 4 through a waveguide (not shown), so that the food is heated at a high frequency. The cooling fan 15 includes a fan motor 15a and a blade 15b.

An air guide duct 16 is provided on the right side of the heating chamber 4 so that cooling air from the cooling fan 15 is supplied into the heating chamber 4 through the air guide duct 16. I have. On the other hand, an exhaust duct 17 is provided on the left side of the heating chamber 2, and exhaust from the inside of the heating chamber 4 is performed through the exhaust duct 17.
Further, the interior of the heating chamber 4 is illuminated by the interior light 18 of a size that does not hinder the flow of the wind.

Further, a gas sensor 19 for detecting the amount (concentration) of gas generated from food is disposed in the exhaust duct 17. Also, as shown in FIG.
An operation panel 20 is provided on the front surface of the outer box 2, and a control circuit 21 (shown in FIG. 1) composed of a microcomputer or the like is provided on the back side of the operation panel 20. Although not shown in detail, the operation panel 20 is provided with a display 22 formed of, for example, a liquid crystal display, which is a notification unit, and various switch input units 23. The switch input unit 23 includes a mode selection switch for selecting a heating mode and a start switch.

FIG. 1 shows an electrical configuration. Power plug 2 connected to 100V commercial AC power supply
4, from one terminal 24 a to the other terminal 24 b, a door switch 25 that opens and closes according to the opening and closing of the door 5, a thermal switch 26, one bus L 1, a primary winding 14 a of the high-voltage transformer 14, Relay switch 27
a, the other bus L2, and a door switch 28 that opens and closes according to the opening and closing of the door 5, respectively, are sequentially connected. In addition, between the input side of the thermal switch 26 (one terminal 24a side of the power plug 24) and the output side of the door switch 28 (opposite terminal 24b side), they are closed in reverse according to the opening and closing of the door 5. -The open short switch 29 is connected.

An interior light 18 is provided between the buses L1 and L2.
And a series circuit of a relay switch 30a and a fan motor 15a and a relay switch 31a.
, A series circuit of the turntable motor 8 and the relay switch 32a, a series circuit of the upper heater 10 and the relay switch 33a, and a series circuit of the lower heater 11 and the relay switch 34a.

A driving circuit 35 for the magnetron 13 is connected to the secondary winding 14b of the high-voltage transformer 14. Each of the above-mentioned relay switches 27a, 30a to 34
a is a normally open type, and the relay coils 27b, 30b to 34b are respectively connected to the relays 27, 30 to 34b.
Is composed. These relays 27, 30 to 34 are controlled by a relay drive circuit (not shown) provided in the control circuit 21 to turn on and off (each relay switch is closed when turned on).

Further, a current transformer 36 as current detecting means is provided between the connection point of the bus L2 with the relay switch 30a and the door switch 28. Furthermore, both terminals 24 of the power plug 24
A DC constant voltage power supply circuit 37 is connected between a and 24b. This DC constant voltage power supply circuit 37 is configured to include a step-down transformer, a rectifier circuit, and the like. The DC power supply circuit 37 supplies DC power to the control circuit 21 and the like.

The control circuit 21 includes a microcomputer, the above-described relay drive circuit, and various A / D converters (none of which are shown), and controls the entire heating and cooking by a program of the microcomputer. It functions not only as a heating and cooking control means but also as a use state detecting means, and a ROM of the microcomputer of the control circuit 21 functions as a storage means. The control circuit 21 receives a detection signal from the gas sensor 19, a signal from the current transformer 36, and a signal from the switch input unit 23 of the operation panel 20. At the same time, the control circuit 21 controls the microcomputer based on a control program incorporated in the microcomputer and input signals thereof.
The on / off control of each of the relays 27 and 30 to 34 controls the magnetron 13 (high-voltage transformer 1).
4) The upper and lower heaters 10, 11; the fan motor 15a of the cooling fan 15; and the turntable motor 8 are each driven to perform heating cooking.
The display on the display 23 is also controlled.

The heating modes of the heating cooking in this embodiment include a "microwave cooking" mode, an "oven cooking" mode, and a "grill cooking" mode, and each mode is as shown in FIG. is there. That is, in the “microwave cooking” mode, by turning on the relays 27, 30, 31, and 32, the high-voltage transformer 14 is energized to drive the magnetron 13, generate microwaves, and supply the microwaves to the heating chamber 4. The interior light 18 is turned on, and the fan motor 15a is turned on.
Is rotated (the blades 15b are rotated), and the turntable motor 8 is rotated (the rotary plate 7 is rotated). In the heating cooking in the “microwave cooking” mode, the food placed on the rotating plate 7 is heated by receiving the microwave while rotating. At this time, the magnetron 13 and the high-voltage transformer 14 are cooled by the fan 15.

The "oven cooking" mode includes a relay 30,
By turning on 32, 33, and 34, the interior lamp 18 is turned on, the fan motor 15a is rotated, and the upper heater 1 is turned on.
0 and the lower heater 11 are energized and heated. In the heating cooking in the “oven” mode, the food placed on the grill 6 is heated by the upper heater 10 and the lower heater 11.

In the "grill cooking" mode, the relays 30, 3
By turning on 3, the interior lamp 18 is turned on and the upper heater 10 is energized and heated. In the heating cooking in the “range” mode, the food placed on the top plate is heated by the upper heater 10.

The control circuit 21 performs control operations as shown in FIGS. 8 to 11 as heating and cooking control means and use state detecting means. In these figures, the symbol Ik
1 to Ik6 are first to sixth current reference values stored in a ROM (storage means) of the microcomputer. These first to sixth current reference values Ik1 to Ik6 are set based on the following concept.

FIGS. 6 and 7 show the results of an investigation by the present inventors on the current consumption during heating and cooking.
That is, in the heating cooker of the present investigation, when the normal load condition and the normal use environment condition were set, in the “microwave cooking” mode, the entire current consumption was 10.37 A, and the magnetron 13 as the electrical component and the cooling device were respectively provided. FIG. 6 shows the current consumption of the fan motor 15a of the fan 15, the turntable motor 8, the interior lamp 18, and the DC constant voltage power supply circuit 37 (step-down transformer). The current consumption of the high-voltage transformer 14 includes the current consumed by the driving of the magnetron 13.

In the "oven cooking" mode, the total current consumption is 12.27 A, and the upper heater 10, the lower heater 11, the turntable motor 8, the interior lamp 18, the DC constant voltage power supply circuit, which is an electrical component, FIG. 6 shows the current consumption of each of the 37 (step-down transformers). Further, in the “grill cooking” mode, the total current consumption is 7.22 A,
FIG. 6 shows the current consumption of the upper heater 10, the interior lamp 18, and the DC constant voltage power supply circuit 37 (step-down transformer), which are electrical components.

Further, although the current consumption of each of the above-mentioned electrical components is different, as shown in FIG. 7, it has been found that the current consumption suddenly increases when the operation is stopped or an operation failure is caused. In consideration of this point, the first to sixth current reference values Ik1 are used with reference to FIG. 7 and FIG.
ＩIk6. Note that this current reference value Ik1
Since ~ Ik6 varies depending on the size of the cooking device and the rating of each electrical component, specific numerical values are not listed in this embodiment. However, roughly speaking, it is set around the current level LA shown in FIG. Further, the correspondence between each of the current reference values Ik1 to Ik6 and each electrical component is as follows.
This will be described in the following operation description.

The operation of the above configuration will be described with reference to FIGS. FIG. 8 shows a main routine, in which the microcomputer of the control circuit 21 starts up and starts when the power plug 24 is connected to the AC power supply. In step Q1, it is determined whether or not there has been a switch input from the switch input unit 23. If there is a switch input, the flow proceeds to step Q2 to determine whether or not the switch is a start switch. If not, the flow proceeds to step Q3. I do. In this step Q3, control according to the operated switch is executed, and the process returns to step Q1.

Here, assuming that the food is accommodated in the heating chamber 4 and the door 5 is closed, and the mode selection switch is operated and the start switch is operated, step Q2
Then, the process goes to step Q4. Here, assuming that the “microwave cooking” mode has been selected, steps Q4 to Q5 and step Q6 are executed. In step Q5, the use condition detection control (1) is executed, and the contents of the use condition detection control (1) are shown in a subroutine of FIG. In the use condition detection control (1), the use condition of electrical components used for heating cooking in the “microwave cooking” mode is detected.

That is, in step R1, the relay 30 is turned on for a predetermined time (relay switch 30a).
(Closed), and the current consumption Is is read based on a signal (current detection signal) from the current transformer 36. In this case, the interior lamp 18 is energized by turning on the relay 30, and the current consumption Is at that time can be said to be the current consumption of the interior lamp 18.

In step R2, it is determined whether or not the current consumption Is at this time is equal to or less than the first current reference value Ik1. If it is determined in step R2 that the current consumption Is is equal to or less than the first current reference value Ik1,
That is, when it is determined that the interior lamp 18 does not stop operating or cause a malfunction, the process proceeds to step R3.

In step R3, the relay 31
Is turned on at a predetermined time, and the consumption current Is is read based on a signal from the current transformer 36. In this case, when the relay 31 is turned on, the fan motor 15a is energized. Therefore, the current consumption Is at that time can be said to be the current consumption of the fan motor 15a. In the next step R4, the current consumption Is is reduced to the second current reference value I.
It is determined whether or not k2 is equal to or less than k2. If it is determined that k is equal to or less than k2, that is, if it is determined that the operation of the fan motor 15a is not stopped or an operation failure is not caused, the process proceeds to step R5.

In step R5, the relay 32
Is turned on for a predetermined time, and the current consumption Is is read based on a signal from the current transformer 36. In this case, the turntable motor 8 is energized when the relay 32 is turned on. Therefore, the current consumption Is at that time can be said to be the current consumption of the turntable motor 8. In the next step R6, it is determined whether or not the current consumption Is is equal to or less than the third current reference value Ik3. If it is determined that the current is less than the third current reference value Ik3, that is, the turntable motor 8 stops operating or operates. If it is determined that no defect has been caused, the process proceeds to step R7.

In this step R7, the relay 27
Is turned on for a predetermined time, and the current consumption Is is read based on a signal from the current transformer 36. In this case, when the relay 27 is turned on, the primary winding 14a of the high-voltage transformer 14 is energized, and the magnetron 13 connected to the secondary winding 14b via the drive circuit 35 is driven. Therefore, the current consumption Is at that time can be said to be the current consumption of the high-voltage transformer 14 including the magnetron 13. In the next step R8, it is determined whether or not the current consumption Is is equal to or less than a sixth current reference value Ik6.
Return to 6. Then, in step Q6 of FIG. 8, heating cooking is performed in the “microwave cooking” mode.

Here, in step R2 of FIG. 9 described above, if the current consumption Is exceeds the first current reference value Ik1, that is, it is determined that the interior lamp 18 has stopped operating or has caused a malfunction. Then, in accordance with "NO" in step R2, the process shifts to step R9, where the display 22
Then, a predetermined display pattern (a display pattern indicating that the interior lamp 18 has stopped operating or has caused an operation failure) is displayed. As a result, the user can recognize that the operation of the interior light 18 has been stopped or a malfunction has occurred. Therefore, it is possible to quickly take measures such as replacement of the interior light 18.

In step R4, the current consumption I
If s exceeds the second current reference value Ik2, that is, if it is determined that the operation of the fan motor 15a has been stopped or an operation failure has occurred, "NO" in step R4.
, The display 22 displays a predetermined display pattern (a display pattern indicating that the fan motor 15a is stopped or malfunctioning).

Further, if it is determined in step R6 that the current consumption Is exceeds the third current reference value Ik3, that is, if it is determined that the turntable motor 8 stops operating or malfunctions, the process proceeds to step R6. In accordance with "NO" in the step R6, the process shifts to the step R11.
In addition, a predetermined display pattern (a display pattern indicating that the turntable motor 15a is in an operation stop state or an operation failure state) is displayed.

Further, in step R8, when the consumed current Is exceeds the sixth current reference value Ik6, that is, when it is determined that the high-voltage transformer 14 or the magnetron 13 has stopped operating or has caused a malfunction. According to "NO" of this step R8, step R1
Then, the display 22 displays a predetermined display pattern (a display pattern indicating that the high-voltage transformer 14 or the magnetron 13 has stopped operating or is in a malfunctioning state).

On the other hand, if it is determined in step Q4 of FIG. 8 that the heating mode is not the “microwave cooking” mode, the process proceeds to step Q7 to determine whether or not the mode is the “oven cooking” mode. Mode, the flow shifts to "usage state control (2)" in step Q8. This “usage state control (2)” is shown in FIG. 10 as a subroutine. In the use state detection control (2), the use state of electrical components used for heating cooking in the “oven cooking” mode is detected.

In steps S1, S2, and S9 in FIG. 10, the same control as in steps R1, R2, and R9 in FIG. 9 is performed. Steps S3, S4, and S10 perform the same control as steps R5, R6, and R11 in FIG. In step S5, the relay 33 is turned on for a predetermined time, and the current consumption Is is read based on a signal from the current transformer 36. In this case, the upper heater 10 is energized by turning on the relay 33. Therefore, the current consumption Is at that time can be said to be the current consumption of the upper heater 10. In the next step R6, the current consumption Is is reduced to the fourth current reference value Ik.
It is determined whether the number is equal to or less than 4, and if it is determined that the number is equal to or less than 4, the process proceeds to step S7. When the consumed current Is exceeds the fourth current reference value Ik4, that is, when it is determined that the upper heater 10 has stopped operating or has caused a malfunction, the process proceeds to step S11, and the display 22
Then, a predetermined display pattern (a display pattern indicating that the upper heater 10 is in an operation stop state or an operation failure state) is displayed.

In step S7, the relay 34 is turned on for a predetermined time and the current transformer 3 is turned on.
The consumed current Is is read based on the signal from the reference numeral 6. In this case, the lower heater 11 is energized by turning on the relay 33. Therefore, the current consumption Is at that time can be said to be the current consumption of the lower heater 11. In the next step R8, it is determined whether or not the current consumption Is is equal to or less than the fifth current reference value Ik5. This consumed current Is is equal to the fifth current reference value I.
If it exceeds k5, that is, if it is determined that the lower heater 11 has stopped operating or has malfunctioned, the process proceeds to step S12, and the display 22 displays a predetermined display pattern (lower heater 11 (A display pattern indicating that the operation is stopped or an operation failure state).

If it is determined in step Q7 of FIG. 8 that the mode is not the "oven cooking" mode (the mode is the "grill cooking" mode), the flow shifts to use state detection control (3) in step Q10. The “usage state control (3)” in step Q10 is shown as a subroutine in FIG. In this use situation detection control (3),
The usage status of electrical components used for heating cooking in the “range cooking” mode is detected.

Steps T1 and T in FIG.
2 and step T5 are the same control as step R1, step R2 and step R9 in FIG. 9, and step T3 and step T4 and step T6 are the same as those in FIG.
Step S5 and Step S6 and Step S11
This is the same control as.

According to the present embodiment, the magnetron 13, the high-voltage transformer 14, the turntable motor 8, the interior lamp 18, the fan motor 15a, the upper heater 10 and the lower heater 11, which are electrical components, are individually provided. Or a plurality of sets of power supply current Is is detected by the current transformer 36, and whether or not the detection result exceeds a current reference value (any one of Ik1 to Ik6) corresponding to the electrical component to be inspected is determined. From the determination, it can be determined whether the electrical component has stopped operating or has malfunctioned. Then, when the consumption current Is exceeds the current reference value corresponding to the electric component, the display device 22 serving as the notifying unit is caused to perform a display operation as a notifying operation. It becomes possible to recognize that a defect has occurred. As a result, cooking will not fail, and measures such as repair and parts replacement can be taken promptly. In this case, in the present embodiment, the current consumption is measured for each of the plurality of heating modes and the current is compared with the current reference value. For example, the electrical components individually or the plurality of electrical components regardless of the heating mode. May be controlled as described above.

FIGS. 12 and 13 show a second embodiment of the present invention. The second embodiment is characterized in that the current consumption of the entire electrical component used in each heating mode is detected, and the overall use state is detected.
That is, in this embodiment, the current reference value Im with respect to the current consumption in the heating cooking in the “microwave cooking” mode.
Is set as shown in FIG. 13, and similarly, a current reference value Io with respect to the current consumption in the heating cooking in the “oven cooking” mode is set as shown in FIG. The current reference value Ig with respect to the consumption current in the heating cooking is set as shown in FIG. Note that the curve Co in the figure shows a current change in the “oven cooking” mode, for example, and does not show the current in the “microwave cooking” mode or the “grill cooking” mode.

Referring to the features of FIG. 12, when it is determined in step U4 that the "microwave cooking" mode has been selected, the process proceeds to step U5, where the relays 30, 31, 32 and 27 are selected. Is turned on for a fixed time, and the current consumption Is is read based on a signal from the current transformer 36. In this case, the interior lamp 18, the fan motor 15a, the turntable motor 8, and the high-voltage transformer 14 (magnetron 13) are energized. Therefore, the current consumption Is at that time can be said to be the total current consumption of these electrical components. In the next step U6, it is determined whether or not the current consumption Is is equal to or less than the current reference value Im. When it is determined that the current consumption is less than or equal to the current reference value Im, that is, these electrical components are caused to stop operating or malfunction. If it is determined that there is no cooking, the process proceeds to step U7 to execute heating cooking in the “microwave cooking” mode.

In step U6, the current consumption I
When it is determined that s exceeds the current reference value Im,
The process proceeds to step U8 to display a predetermined display pattern (a display pattern indicating that one of the electrical components used in the "microwave cooking" mode is in an operation stop or operation failure state). As a result, the user can recognize that the operation of these electrical components has stopped or that the malfunction has occurred. Therefore, it is possible to quickly take measures such as electrical component repair and component replacement.

If it is determined in step U4 that the "microwave cooking" mode has not been selected, the flow shifts to step U9 to determine whether or not the "oven cooking" mode has been selected. If it is determined that the "" mode has been selected, the process moves to step U10. Here, the relays 30, 32, 33, and 34 are turned on for a certain period of time, and the current consumption Is is read based on a signal from the current transformer 36. In this case, the interior light 1
8, the turntable motor 8, the upper heater 10, and the lower heater 11 are energized. Therefore, the current consumption Is at that time
Is the overall current consumption of these electrical components. In the next step U11, the consumption current Is is reduced to the current reference value Io.
It is determined whether or not the following conditions are satisfied. When it is determined that the following conditions are satisfied, that is, when it is determined that these electrical components do not stop operating or cause malfunction, step U1 is performed.
The process proceeds to step 2 to execute the heating cooking in the “oven cooking” mode.

If it is determined in step U11 that the current consumption Is exceeds the current reference value Io, the process proceeds to step U13, in which a predetermined display pattern (used in this "oven cooking" mode) is used. (Indication pattern indicating that the electrical component is stopped or malfunctioning)
Is displayed.

In step U9, "Oven cooking"
If it is determined that the mode has not been selected (that the "range cooking" mode has been selected), step U1 is performed.
Move to 4. Here, the relays 30 and 33 are turned on for a certain time, and the current consumption Is is read based on a signal from the current transformer 36. In this case, the interior light 18
And the upper heater 10 is energized. Therefore, the current consumption Is at that time can be said to be the total current consumption of these electrical components.
In the next step U15, it is determined whether or not the current consumption Is is less than or equal to the current reference value Ig. If it is determined that the current is less than the current reference value Ig, that is, these electrical components have stopped operating or malfunctioned. If it is determined that there is no cooking, the process proceeds to step U16 to execute the heating cooking in the "range cooking" mode.

If it is determined in step U15 that the current consumption Is exceeds the current reference value Ig, the flow proceeds to step U17 to set the display pattern (the electric equipment used in this "oven cooking" mode). Display pattern indicating that any one of the articles is in an operation stop state or an operation failure state).

According to the second embodiment, the current consumption is detected by the current transformer 36 when the heating is performed in the predetermined heating mode, and the detection result exceeds each current reference value in the corresponding heating mode. Sometimes, the display 22 is operated to display, so that it is possible to determine that any of the electrical components used in a certain heating mode has stopped operating or has malfunctioned, and to eliminate failure in heating in that heating mode. Can be. In the above embodiment, the current consumption is detected for each of the plurality of heating modes and the detection result is compared with the current reference value. For example, these controls are performed for one frequently used heating mode. You may do it.

FIG. 14 shows a third embodiment of the present invention. The feature of this embodiment is that the display 22
Is displayed, the subsequent heating and cooking are continuously stopped. That is, the parameter P shown in step V0, step V4, and step V10 is provided to determine whether or not to continue heating cooking, and when the parameter P is "0", execution of heating cooking is performed. "1" means continuation of heating cooking.

First, in step V0, the parameter P is set to "0" as an initial setting when the power is turned on. At the time of the first heating cooking, the parameter P is “0”. Therefore, in the determination of whether or not the parameter P is “1” in Step V4, it is determined that the parameter P is not “1”. If the "microwave cooking" mode is selected, step V6, step V7, step V8 or step V9 is executed according to "YES" in step V5. In this case, step V6, step V7, step V8, and step V9 correspond to step U5, step U6, step U7, and step U in FIG. 12 of the second embodiment.
Same as 8.

In step V7, the current consumption Is
Is determined to have exceeded the current reference value Im, the display 22 is operated to display in the display pattern determined in step V9. Thereafter, the process proceeds to step V10, where the parameter P is changed to " 1 ". Step V1
After 5 (display operation of the display 22), and step V19
After (display operation of the display 22), the process also proceeds to step V10, and the parameter P is set to “1”. After step V10, the process returns to step V1.

When the parameter P becomes "1" in this manner, even if the mode selection switch is operated and the start switch is operated again to perform heating cooking, the parameter P must be "1" in step V4. Is determined, and the process returns to step V1. Therefore, even if each switch is operated again, Steps V1 and V
2. The closed loop of step V4 and step V1 is executed, and the heating cooking is substantially continuously stopped.

According to the third embodiment, when the display 22 is operated for display, that is, when the electric component stops operating or malfunctions, the heating cooking is continuously stopped. It is possible to prevent electricity from being supplied to the electrical components that have caused a failure or operation stop, and it is possible to reliably prevent the deterioration of the situation.

FIGS. 15 and 16 show a fourth embodiment of the present invention. In this embodiment, the control circuit 21 functions as an integrating means and an auxiliary use situation detecting means, and based on this, the control circuit 21 operates as an integrating means. In particular, the feature is that the service life is detected. That is, in connection with this, as shown in FIG. 15, a nonvolatile memory 41 is provided as time reference value storage means. The nonvolatile memory 41 includes:
Time reference value Tm corresponding to "microwave cooking" mode
k, time reference value To corresponding to “oven cooking” mode
k, and a time reference value Tgk corresponding to the “grill cooking” mode are stored. These time values Tmk, To
k and Tgk are obtained in advance by experiments, and depend on the service life of the electrical components used in each cooking mode. For example, as a rough guide, the time reference value Tmk corresponding to the “microwave cooking” mode is “1000”.
The time reference value Tok corresponding to the “time” and “oven cooking” mode is preferably “500 hours”, and the time reference value Tgk corresponding to the “grill cooking” mode is also preferably “500 hours”.

Then, the control circuit 21 performs a control operation as shown in FIG. To describe a characteristic part of this control operation, when the “microwave cooking” mode is selected and the start switch is operated, the process proceeds to step W6 according to “YES” of step W5. In this step W6, the heating cooking is executed in the "microwave cooking" mode, the current heating cooking time Tc is measured, and the current consumption Is is read. Then, in step W7, the heating cooking time so far in the "microwave cooking" mode is integrated. That is, the time integration value Tm up to the previous time stored in the non-volatile memory 41 is read, the current measurement time Tc is added thereto, and the heating cooking time in the “microwave cooking” mode is integrated.

In the next step W8, the integrated time value Tm up to this time is updated and stored in the nonvolatile memory 41. In step W9, it is determined whether or not the measured current consumption Is is equal to or smaller than the current reference value Imk. If it is, the process proceeds to step W10. If not, the process proceeds to step W10. B) The process proceeds to step W11.

At step W10, it is determined whether or not the time integrated value Tm at this time is equal to or less than the time reference value Tmk for the "microwave cooking" mode.
It returns to step W1. If the time integrated value Tm exceeds the time reference value Tmk, that is, if it is detected that the service life is approaching, the process proceeds to step W11 and a predetermined display pattern (in this “microwave cooking” mode). (A display pattern indicating that one of the electrical components to be used is nearing the end of its useful life). Then, the process shifts to step W12 to set the parameter P to "1" which is a content value for continuously stopping the heating and cooking.

When the “oven cooking” mode is selected and the start switch is operated, step W
In accordance with "YES" of 13, the process shifts to step W14 and thereafter. In step W14, the cooking is performed in the “oven heating” mode, the current cooking time Tc is measured, and the current consumption Is is read. Then, step W15
Then, the heating cooking time so far in the “oven cooking” mode is integrated. That is, the time accumulated value To up to the previous time stored in the nonvolatile memory 41 is read, the current measured time Tc is added thereto, and the heating cooking time in the “oven cooking” mode is integrated.

In the next step W 16, the accumulated time integrated value To up to this time is updated and stored in the nonvolatile memory 41. In step W17, it is determined whether or not the measured consumption current Is is equal to or less than the current reference value Iok. If so, the process proceeds to step W18. If not, the process proceeds to step W19.

Then, in step W18, it is determined whether or not the time integrated value To at this time is equal to or less than the time reference value Tok for the "oven cooking" mode, and if so, the process returns to step W1. The time integrated value To is equal to the time reference value T.
If it exceeds ok, that is, if it is detected that the service life is approaching, the process proceeds to step W19, and a predetermined display pattern (one of the electrical components used in this “oven cooking” mode has a service life of (A display pattern indicating that it is near). Then, the process proceeds to step W20,
The parameter P is set to “1”.

Further, when the "grill cooking" mode is selected and the start switch is operated, the process shifts to step W21 and subsequent steps according to "NO" in step W13. In step W21, heating cooking is performed in the "grill heating" mode, the current cooking time Tc is measured, and the current consumption Is is read. Then, in step W22, the heating cooking time so far in the "grill cooking" mode is integrated. That is, the nonvolatile memory 4
The accumulated time Tg up to the previous time stored in 1 is read out, the current measured time Tc is added thereto, and the cooking time in the “oven cooking” mode is integrated.

In the next step W23, the accumulated time integrated value Tg up to this time is updated and stored in the nonvolatile memory 41. In step W24, it is determined whether or not the measured consumption current Is is equal to or less than the current reference value Igk. If so, the process proceeds to step W25. If so, the process proceeds to step W26.

Then, in step W25, it is determined whether or not the time integrated value Tg at this point is equal to or less than the time reference value Tgk for the "oven cooking" mode. The time integration value Tg is equal to the time reference value T.
If it exceeds gk, that is, if it is near the end of its useful life, the process proceeds to step W26, where a predetermined display pattern (that one of the electrical components used in this “oven cooking” mode is near its end of its useful life ”is displayed. Display pattern).
Then, the flow shifts to step W27, where parameter P is set.
Is “1”.

According to the fourth embodiment, the execution time of cooking in each heating mode is integrated, and when the integration time exceeds the time reference value, it is determined that the service life is approaching. Then, since the display 22 is operated for display, it is possible to determine the overall service life of the electrical components used in the heating mode. In this case, in the present embodiment, the execution time is integrated for each of the plurality of heating modes, and the integrated time is compared with the time reference value. May be performed.

FIGS. 17 and 18 show a fifth embodiment of the present invention. In this embodiment, the heating mode includes a composite mode in which different types of single heating modes are combined. When cooking is performed in
Which single heating mode is being executed is detected based on the current consumption, and the accumulated time of each single heating mode is used to detect the usage status of the electrical components used in each single heating mode (auxiliary usage status detection (Function as means). This characteristic part will be described. As shown in FIG.
And a non-volatile memory 41 as time reference value storage means.

As the heating mode, besides a single heating mode such as a “microwave cooking” mode, an “oven cooking” mode and a “grill cooking” mode, for example, a “microwave cooking” mode and an “oven cooking” mode There is a compound mode that combines with. When the heating cooking is performed in the combined mode, the cooking is performed first in the “microwave cooking” mode, and then in the “oven cooking” mode.
Further, in the nonvolatile memory 41, in the case of the composite mode, the current reference value Imo is stored in order to determine which of the “microwave cooking” mode and the “oven cooking” mode is being executed. And the fourth
The time reference value Tmk corresponding to the “microwave cooking” mode, the time reference value Tok corresponding to the “oven cooking” mode, and the time reference value Tgk corresponding to the “grill cooking” mode described in the embodiment are stored. . As can be seen from FIG. 6 of the first embodiment, the current reference value Imo is equal to the total current value of the “microwave cooking” mode of 10.3.
7A, the total current value with the “oven cooking” mode is 1
Since it is different from 2.27A, the intermediate value is used as a criterion value for the type of the single heating mode.

Now, a case where the composite mode is selected and the start switch is operated will be described with reference to FIG. In this case, the process proceeds to step X6 according to "YES" in step X5. In step X6, heating cooking is started in the composite mode. In this case, the heating cooking is first performed in the “microwave cooking” mode. The heating cooking in the "microwave cooking" mode is ended by, for example, state control (for example, detection of the end by the gas sensor 19 in FIG. 3) instead of the time control. The switching timing is undefined. And the execution time of heating cooking in this "oven cooking" mode is
It is determined based on the required time in the “microwave cooking” mode and the like.

In the next step X7, the current consumption Is is read based on the signal from the current transformer 36. Then, in step X8, it is determined whether or not the current consumption Is is equal to or less than the current reference value Imo. If the current is smaller than the current reference value Imo, the process proceeds to step X9 and the single heating mode currently being executed is set to "microwave". It is determined that the mode is the “cooking” mode, and the time (T1) is measured. Here, step X8
When it is determined that the current consumption Is exceeds the current reference value Imo, the process proceeds to step X10 to determine that the single heating mode currently being executed is the “oven cooking” mode. , Time (T2).

At the next step X11, it is determined whether or not the heating in the combined mode has been completed. If not, the process returns to step X7. If it is determined that the cooking in the combined mode has been completed, the process proceeds to step X12.
Then, the cooking time so far in the “microwave cooking” mode is integrated. That is, the time integrated value Tm up to the previous time stored in the nonvolatile memory 41 is read out, the current measured time T1 is added thereto, and the heating cooking time in the “microwave cooking” mode is integrated. Thereafter, the process proceeds to step X13, in which the heating cooking time so far in the “oven cooking” mode is integrated. That is,
The time integration value To up to the previous time stored in the non-volatile memory 41 is read out, the current measurement time T2 is added thereto, and the heating cooking time in the “microwave cooking” mode is integrated.

Then, the flow shifts to the next step X14,
The accumulated time values Tm and To up to this time are updated and stored in the nonvolatile memory 41. Then, in step X15, the time integration value Tm at this time is set to “microwave cooking”.
It is determined whether or not the time is equal to or less than the time reference value Tmk for the mode, and if so, the process proceeds to step X18. If the time integrated value Tm exceeds the time reference value Tmk, the process proceeds to step X16. And a predetermined display pattern (a display pattern indicating that one of the electrical components used in the “microwave cooking” mode is about to reach the end of its useful life and will stop operating or malfunction). Then, the flow shifts to step X17, where the parameter P is set to "1".

Then, in step X18, it is determined whether or not the integrated time value To at this time is equal to or less than the time reference value Tok for the "oven cooking" mode.
Returning to step X1, if the time integrated value To exceeds the time reference value Tok, the process proceeds to step X19, where a predetermined display pattern (any one of the electrical components used in the “oven cooking” mode will soon be completed) Display pattern indicating that the operation is stopped or malfunctions after the end of the service life). Then, the process shifts to step X20 to set the parameter P to “1”.

According to the fifth embodiment, the current consumption Is is detected at the time of executing the cooking in the combined mode.
This detection result is compared with the current reference value Imo to determine the type of the single heating mode being executed. Therefore, in the combined mode, even if the execution time zone of each single heating mode is unknown, the currently executed single heating mode is automatically determined. The type of one heating mode can be determined. Then, the execution time of the automatically determined single heating mode is individually integrated, so that the execution time can be integrated for each single heating mode even in the combined mode. Further, the display 22 is operated when the integrated time of each single heating mode exceeds the time reference value Im or Io of the single heating mode. The judgment can be made appropriately.

FIGS. 19 and 20 show a sixth embodiment of the present invention. In this embodiment, when it is predicted that an operation stop or an operation failure will occur sooner than a normal use life, the sixth embodiment will be described. There is a feature in that the detection is performed. FIG. 20 shows a time-dependent change in the current consumption of the electrical component in a normal use state by a curve J1. The use environment of the heating cooker is high temperature and high humidity, or in a narrow installation environment (often a high temperature). Curve J shows the change over time in the current consumption of an electrical component
This is indicated by 2. In this case, a certain level of the current reference value L
If the current consumption is determined in A, it is possible to detect the time when the electrical component causes the malfunction or the like, but it has been found that the time can be detected early. That is, in the case of the curve J1, the degree of increase in current consumption is gradual, whereas in the case of the curve J2, the degree of increase in current consumption is steep. That is, the changing tendency of the current consumption is different.
In this embodiment, the data indicated by the area D near the curve J1 is stored in the nonvolatile memory 41 as the reference tendency data. In this case, as the reference tendency data, Dm, Do, and Dg are stored for each heating mode.

FIG. 19 shows the control operation. When the "microwave cooking" mode is selected and the start switch is operated, the process proceeds to step Y6 according to "YES" in step Y5. In this step Y6, the heating cooking in the “microwave cooking” mode is executed, the execution time Tc at this time is measured, and the current consumption Is is read.

Next, at step Y7, the execution time of the heating cooking up to this time in the "microwave cooking" mode is integrated, and at step Y8, the time integration value Tm is updated and stored in the nonvolatile memory 41. After this, step Y
In step 9, the current time integrated value Tm and the current consumption Is are compared with the reference change data Dm. That is, from the reference change data Dm, the current consumption (with a vertical width) corresponding to the current time integrated value Tm is accessed, and this data D
The current consumption during the period m is compared with the current consumption Is at this time.

If it is determined in step Y10 that the current consumption Is at this time is out of the current consumption width in the data Dm, abnormalities such as malfunctions due to causes other than the normal use life may occur. It is determined that there is, and the process proceeds to step Y11, and the fact is displayed on the display 22. If it is determined in step Y10 that the current consumption Is does not deviate from the current consumption width in the data Dm, the process proceeds to step Y12.

Step Y In step 12, it is determined whether or not the current consumption Is is less than or equal to the current reference value Imk. If it is, the process returns to step Y1, and if the current consumption Is exceeds the current reference value Imk. For example, steps Y13 and Y14 are executed, and the process returns to step Y1. The same control as described above is performed when the heating cooking is executed in the “oven cooking” mode or the “grill cooking” mode.

In the above-described embodiment, when the cooking is performed, the execution time is integrated and the current consumption is detected. When the integration time and the detection result of the current consumption are out of the reference tendency data, the display 22 is displayed. Because the display is driven,
An abnormality due to a cause other than the normal service life can be detected at an early stage, and the user can be made aware of the abnormality.

Note that the notification means may be a CRT display, a sound output device, or a buzzer. Further, the heating cooker is not limited to a type that selectively executes a plurality of heating modes, and for example, a heating cooker such as a type that performs only a microwave cooking mode or a type that performs only an oven, as necessary. Can be applied.

[0094]

As apparent from the above description, the present invention has the following effects. According to the first aspect of the present invention, the current consumption is detected by the current detecting means by energizing the electric components individually or to a plurality of electric components, and it is determined whether or not the detection result exceeds the current reference value. Therefore, it is possible to determine whether or not the time has come for the electrical component to malfunction or stop operating. Then, when the detection result exceeds the current reference value corresponding to the electrical component,
Since the notification means is caused to perform the notification operation, the user can recognize that the operation failure or the operation stop has occurred with respect to the electric component, and the cooking failure can be eliminated, and measures such as repair and component replacement can be promptly taken.

According to the second aspect of the present invention, the current consumption is detected by the current detection means when the heating is performed in the predetermined heating mode, and the notification means is notified when the detection result exceeds the current reference value. Accordingly, it is possible to recognize that an operation failure or an operation stop has occurred for the electrical components used in the predetermined heating mode. According to the third aspect of the present invention, the execution time of heating cooking is integrated, and when the integrated time exceeds the time reference value, the notification means is operated to perform a notification operation. Life can be determined.

According to the fourth aspect of the present invention, at the time of executing the cooking in the combined mode, the current consumption is detected, and the detection result is compared with the current reference value to determine the type of the single heating mode being executed. Therefore, the type of the single heating mode being executed can be automatically determined. Then, since the determined execution times of the single heating mode are individually integrated, the execution time can be integrated for each single heating mode even in the composite mode. When the accumulated time of the heating mode exceeds the time reference value of the single heating mode, the notifying means is operated so that the overall use life of the electrical component for each single heating mode is maintained even in the mixed mode. Can be determined.

According to the fifth aspect of the present invention, at the time of performing the heating cooking, the execution time is integrated, the current consumption is detected, and the notification means is provided when the integrated time and the current consumption detection result deviate from the reference trend data. , The abnormality can be detected and notified at an early stage due to a cause other than the normal service life. According to the invention of claim 6,
When the notifying means is operated to notify, that is, when the electric component causes an operation failure or an operation stop, the heating cooking is continuously stopped, so that it is possible to reliably prevent the deterioration of the situation.

[Brief description of the drawings]

FIG. 1 is an electric circuit diagram showing a first embodiment of the present invention.

FIG. 2 is a perspective view of a cooking device.

FIG. 3 is a cross-sectional plan view

FIG. 4 is a longitudinal sectional side view.

FIG. 5 is a diagram showing an on / off operation of a relay.

FIG. 6 is a diagram showing current consumption of electrical components.

FIG. 7 is a diagram showing a change in current consumption;

FIG. 8 is a flowchart of main control.

FIG. 9 is a flowchart of use state detection control (1).

FIG. 10 is a flowchart of use status detection control (2).

FIG. 11 is a flowchart of use status detection control (3).

FIG. 12 is a flowchart of overall control showing a second embodiment of the present invention.

FIG. 13 is a diagram showing a change in current consumption.

FIG. 14 is a flowchart of an overall control showing a third embodiment of the present invention.

FIG. 15 is an electric circuit diagram showing a fourth embodiment of the present invention.

FIG. 16 is a flowchart of overall control.

FIG. 17 is an electric circuit diagram showing a fifth embodiment of the present invention.

FIG. 18 is a flowchart of overall control.

FIG. 19 is a flowchart of overall control according to a sixth embodiment of the present invention.

FIG. 20 is a diagram showing a normal current consumption change and a current consumption change in a case different therefrom.

[Explanation of symbols]

4 is a heating room, 8 is a turntable motor (electrical component),
10 is an upper heater (electrical component), 11 is a lower heater (electrical component), 13 is a magnetron (electrical component), 14 is a high-voltage transformer (electrical component), 15a is a fan motor (electrical component), 1
8 is an interior light (electrical component), 21 is a control circuit (heating / cooking control means, use state detection means, storage means, auxiliary use state detection means), 22 is a display (notification means), 27, 30 to 34
Is a relay, 36 is a current transformer (current detecting means),
Reference numeral 41 denotes a nonvolatile memory (time reference value storage means).

Claims (6)

[Claims] 1. A heating chamber for accommodating food, an electrical component related to heating of the food, heating and cooking control means for driving and controlling the electrical component to execute cooking, and a current detection for detecting a current consumption. Means, a storage means for storing a current reference value for the current consumption of each of the electrical components or a plurality of electrical components, a notifying means, and a current detecting means for supplying current to each of the electrical components or the plurality of electrical components and detecting the consumed current. And a use condition detecting means for causing the notifying means to perform a notification operation when the detection result exceeds the current reference value. 2. A heating chamber for accommodating food, an electrical component relating to heating of the food, current detecting means for detecting current consumption, and a heating control in the predetermined heating mode by controlling the drive of the electrical component. Heating cooking control means, storage means for storing a current reference value for current consumption in heating cooking in the heating mode, notification means, and current consumption detection by the current detection means when heating is performed in the heating mode. And a use state detecting means for notifying the notifying means when the detection result exceeds the current reference value. An accumulating means for accumulating an execution time of the heating cooking; a time reference value storing means for storing a time reference value for the accumulated time of the heating cooking; and an accumulating time by the accumulating means exceeding the time reference value. 3. The heating cooker according to claim 1, further comprising an auxiliary use status detecting means for informing the notifying means when the notification is made. 4. A heating mode includes a combined mode in which different types of single heating modes are combined, and a single current reference value that stores a unique current reference value for a current consumption when executing each of the single heating modes. Storage means, and heating mode determination means for detecting current consumption, comparing the detection result with the current reference value to determine the type of the single heating mode being executed, when performing the heating cooking in the composite mode. An integrating means for individually integrating the execution time of the single heating mode determined by the heating mode determining means; a time reference value storing means for storing a time reference value for the integrated time of each single heating mode; At the time of performing the heating in the combined mode, the type of the single heating mode being executed is determined by the heating mode determining means, and the integrated time of the determined single heating mode is determined as described above. Claim, characterized in that the informing means is provided an auxiliary usage detection means for informing operation when it exceeds the reference value 1
Or the heating cooker according to 2. 5. A trend data storage unit storing, as reference trend data, a tendency of a change in current consumption with time according to an integrated time of heating cooking, an integrating unit for integrating an execution time of the heating cooking, Auxiliary use state detection that integrates the execution time by the integration means, detects current consumption by the current detection means, and drives the notification means to notify when the integration time and the detection result of the consumption current deviate from the reference trend data. 3. A cooking device according to claim 1, further comprising means. 6. The heating cooking device according to claim 1, wherein the usage status detecting device is configured to stop the heating cooking after that when the notification device is operated to perform the notification operation. vessel.