JP2005233573A - Cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooker capable of easily initializing operation parameter for defining operation modes of various functions of the cooker. <P>SOLUTION: In this cooker 1 comprising a demonstration mode for performing the operation in accordance with operation contents input from a key input part 7 in a state of stopping a magnetron M, two parameter storage areas are set in a nonvolatile memory 13 as storage areas for storing the operation parameters defining the operation modes of various functions of the cooker 1. In two parameter storage areas, initial values predetermined at factory shipment are stored. A control part 11 reads and writes the operation parameters to the first parameter storage area when the demonstration mode is set, and reads and writes the operation parameters to the second parameter storage area when the demonstration mode is canceled. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a cooking device provided with a heating means such as a magnetron or an electric heater, and a cooking device provided with a demonstration mode that operates according to the operation content input by a user while the heating means is stopped. .

  Recent cookers such as microwave ovens are equipped with a microcomputer so that a wide variety of cooking is possible, but the operation is complicated. Therefore, in order to promote sales of cookers, for example, at the storefront of a store, a store clerk needs to explain the performance, function, operation method, etc. of the cooker to the customer while demonstrating the operation of the cooker.

  In the demonstration of the operation of the cooking device, since heating means such as a magnetron is driven, it is troublesome to put an object to be heated in the heating chamber of the cooking device. In addition, it is dangerous to drive a heating means such as a magnetron in a state where an object to be heated is not placed in the heating chamber, and there is a risk of shortening the life of the heating means, which is not preferable.

  Therefore, a cooking device has been developed that has a demo mode that operates according to the operation content input by the user while the heating means is stopped. A cooker having a demo mode is described in Patent Document 1, for example. When a special operation is performed by a store clerk or the like, the cooking device described in Patent Document 1 shifts to a sales promotion mode (demo mode) that is a special mode that prohibits drive control of load cooking means such as a magnetron. It is configured.

  However, in this cooker, the sales promotion mode will be canceled when the cooker is turned off due to the end of the day's storefront operation, etc. Is troublesome because it requires special operation again after the power is turned on. In addition, this special operation is generally complicated and may be forgotten by a store clerk or the like.

  Therefore, a cooking device has been developed that can easily shift to the sales promotion mode even when the power is turned on again after the power is turned off after the special operation is performed. Such a cooker is described in Patent Document 2, for example. In the cooking device described in Patent Literature 2, when a special operation is performed by a store clerk or the like, the sales promotion mode is entered, and the fact that the special operation has occurred is stored in the non-volatile memory, the power is turned off, and then When the power is turned on again, if it is stored in the nonvolatile memory that there has been a special operation, the sales promotion mode is entered even if the special operation is not performed.

By the way, some recent cookers can change the operation modes of various functions provided in the cooker according to user's preference. For example, for the cooking end sound that informs the user of the end of cooking, the quality and volume of the cooking end sound can be changed, and the display brightness of the display unit provided in the cooker can be changed. For the memory function for storing the heating time in correspondence with the memory key, the heating time to be stored can be changed. In such a cooker, the plurality of operation parameters defining the operation modes of various functions provided in the cooker are not erased even when the cooker is turned off. Is stored in a non-volatile memory in the same manner.
Japanese Utility Model Publication No. 3-17134 JP-A-5-33944

  When the cooker used for demonstration of the operation is sold with the demo mode set, it is necessary to cancel the demo mode before delivering the cooker to the purchaser. This is because heating means such as a magnetron is not driven in the demo mode, and cooking cannot be performed while the demo mode is set.

  Further, along with the cancellation of the demo mode, various operation parameters set for demonstration of operation are reset to predetermined initial values, for example, values set at the time of factory shipment, so-called operation parameters are initialized. There is a need. This is to prevent the user who has purchased the cooker from having to initialize the operation parameters.

  In other words, since the operation parameters of the cooker at the time of shipment from the factory are set assuming an operation mode normally used by general users, the user who has purchased the cooker normally performs adjustment operations such as setting changes. Without using it, you can use the cooker immediately. However, if, for example, a cooker whose operating parameters have been changed in demo mode for demonstration at a store is sold and handed over to the user without initializing the operating parameters, the user will initialize the operating parameters. It is necessary to perform an adjustment operation to do this, which places a burden on the user. Therefore, it is necessary to initialize the operation parameters so as not to put a burden on the user who purchased the cooking device.

  In addition, the operating parameters need to be initialized, for example, in many cases, operating manuals for cookers are described on the assumption that the operating parameters are initial values, and the operating parameters are different from the initial values. This is because the user may be confused or think that he / she is out of order, which may cause misunderstanding of the user.

  The release of the demo mode and the initialization of the operation parameters must be performed manually by the store clerk, which is troublesome. In addition, initialization of the operation parameters must be performed one by one, and the operation is complicated and complicated. In particular, when there are a large number of operation parameters, there is a high possibility that setting will be forgotten or set to an incorrect value.

  The present invention has been made paying attention to such problems in the prior art, and is a cooking device that can easily initialize operation parameters that define the operation modes of various functions of the cooking device. The purpose is to provide.

The cooker according to the present invention comprises heating means,
Input means for inputting the operation content of the cooker;
Mode switching means for instructing to set and release a demo mode that operates according to the operation content input from the input means in a state where the heating means is stopped;
It has a mode storage area for storing the cooker mode and two parameter storage areas for storing a plurality of operation parameters for defining the operation mode of the cooker. Each parameter storage area has predetermined initial contents. A non-volatile memory in which is stored,
Parameter selection means for selecting the contents of each operation parameter;
Based on the instruction content from the mode switching means and the selection content from the parameter selection means, the nonvolatile memory is written, the operation content input from the input means and the memory read from the nonvolatile memory Control means for controlling the operation of the cooker based on the contents,
When the setting of the demo mode is instructed by the mode switching means, the control means writes that the demo mode is in the mode storage area, and that the demo mode is stored in the mode storage area In the state, when the first parameter storage area is selected as the storage area for writing and reading the operation parameters, and when the mode switching means is instructed to cancel the demo mode, the mode storage area is in the demo mode. In the demo mode release state in which the mode is erased and the demo mode is erased from the mode storage area, the second parameter storage area is selected as a storage area for writing and reading operation parameters.

In the cooker, in the demo mode state, when the content of the operation parameter is selected by the parameter selection unit, the control unit writes the content of the selected operation parameter in the first parameter storage area, and the input When the operation content is input from the means, based on the input operation content and the operation parameter read from the first parameter storage area, the operation of the cooking device is controlled while the heating means is stopped,
In the demo mode release state, when the content of the operation parameter is selected by the parameter selection unit, the content of the selected operation parameter is written in the second parameter storage area, and when the operation content is input from the input unit, The operation of the cooking device is controlled based on the input operation content and the operation parameter read from the second parameter storage area.

Moreover, the cooking device according to the present invention comprises heating means,
Input means for inputting the operation content of the cooker;
Mode switching means for instructing to set and release a demo mode that operates according to the operation content input from the input means in a state where the heating means is stopped;
It has a mode storage area for storing the cooker mode and a parameter storage area for storing a plurality of operation parameters for defining the operation mode of the cooker. The parameter storage area stores predetermined initial contents. Non-volatile memory
Parameter selection means for selecting the contents of each operation parameter;
Based on the instruction content from the mode switching means and the selection content from the parameter selection means, the nonvolatile memory is written, the operation content input from the input means and the memory read from the nonvolatile memory Control means for controlling the operation of the cooker based on the contents,
When the setting of the demo mode is instructed from the mode switching means, the control means writes that the demo mode is in the mode storage area, and when the mode switching means is instructed to cancel the demo mode, The demo mode is erased from the storage area, and predetermined initial contents are written in the parameter storage area.

  In the cooking device, when the content of the operation parameter is selected by the parameter selection unit, the control unit writes the content of the selected operation parameter in the parameter storage area, and the operation content is input from the input unit. Then, in the demo mode state, the operation of the cooking device is controlled in a state where the heating means is stopped based on the input operation content and the operation parameter read from the parameter storage area. The operation of the cooking device is controlled based on the input operation content and the operation parameter read from the parameter storage area.

  In the cooking device, the instruction for setting the demo mode is a predetermined special input operation on the input means.

  According to the cooker of the present invention, two parameter storage areas for writing a plurality of operation parameters that define the operation mode of the cooker are set in the nonvolatile memory, and the storage areas for writing and reading the operation parameters are as follows: In the demo mode state, the first parameter storage area is selected, and in the demo mode release state, the second parameter storage area is selected.

  Therefore, even when the store clerk sets the demo mode and performs the operation of the cooking device at the store, the set operation parameter is written in the first parameter storage area even if the optimal operation parameter is set for the demonstration. Since the initial contents of the operation parameters at the time of shipment from the factory are held in the second parameter storage area, when the demo mode release operation is performed, the controller simply operates by changing the parameter storage area from which the operation parameters are read. Parameters can be initialized.

  As a result, when selling the cooker used for the operation demonstration at the store and handing it over to the purchaser, the store clerk need only perform the operation to cancel the demo mode, and the store clerk operates as before. Since there is no need to reset and initialize the parameters one by one, the operator does not need to initialize the operation parameters, and the burden on the operator is greatly reduced. Further, since the store clerk is prevented from forgetting the initialization of the operation parameter, it is not necessary for the customer who has purchased the cooker to initialize the operation parameter, and the customer is not burdened.

  According to the cooking device of the present invention, in the demo mode state, when the store clerk or the like selects the content of the operation parameter by the parameter selection means, the content of the selected operation parameter is written in the first parameter storage area. When a store clerk or the like inputs the operation content from the input means, the cooking device operates in a state where the heating means is stopped based on the input operation content and the operation parameter read from the first parameter storage area. To do. As a result, the store clerk can demonstrate the operation of the cooking device at the store.

  In the demo mode release state, when the general user or the like selects the content of the operation parameter by the parameter selection means, the content of the selected operation parameter is written into the second parameter storage area. When a general user or the like inputs the operation content from the input means, the cooker operates based on the input operation content and the operation parameter read from the second parameter storage area. Thereby, a general user or the like can use the cooking device in a desired operation mode.

  According to the cooking device of the present invention, when the release of the demo mode is instructed, the contents stored in the mode storage area of the nonvolatile memory are erased, and the contents of each operation parameter in the parameter storage area are determined in advance. Rewritten to initial contents and initialized. Accordingly, even when the sales clerk at the store sets the operation parameter optimum for the demonstration when performing the operation of the cooking device at the store, the operation parameter is initialized when the release of the demo mode is instructed.

  As a result, when selling the cooker used for the operation demonstration at the store and handing it over to the purchaser, the store clerk need only perform the operation to cancel the demo mode, and the store clerk operates as before. Since there is no need to reset and initialize the parameters one by one, the operator does not need to initialize the operation parameters, and the burden on the operator is greatly reduced. Further, since the store clerk is prevented from forgetting the initialization of the operation parameter, it is not necessary for the customer who has purchased the cooker to initialize the operation parameter, and the customer is not burdened.

  According to the cooking device of the present invention, in the demo mode state, when the store clerk or the like selects the content of the operation parameter by the parameter selection means, the content of the selected operation parameter is written in the parameter storage area. When a store clerk or the like inputs the operation content from the input means, the cooker operates in a state where the heating means is stopped based on the input operation content and the operation parameter read from the parameter storage area. As a result, the store clerk can demonstrate the operation of the cooking device at the store.

  In the demo mode release state, when the general user or the like selects the content of the operation parameter by the parameter selection means, the content of the selected operation parameter is written into the parameter storage area. When a general user or the like inputs the operation content from the input means, the cooker operates based on the input operation content and the operation parameter read from the parameter storage area. Thereby, a general user or the like can use the cooking device in a desired operation mode.

  In addition, according to the cooking device of the present invention, since the setting of the demo mode is instructed by performing a predetermined special input operation with the input means, the general user who purchased the cooking device mistakenly sets the demo mode. Can be prevented.

(First embodiment)
FIG. 1 is a block diagram showing a basic electrical configuration of a cooking device 1 according to a first embodiment of the present invention, and FIG. 2 is a perspective view showing an appearance of the cooking device 1. As shown in FIG. 2, the cooking device 1 has a heating chamber 3 in a substantially rectangular parallelepiped casing 2, and an openable / closable door 4 that opens and closes the heating chamber 3 is provided on the front surface of the cooking device 1. Is provided. An operation unit 5 is provided on the right side of the door 4, and the operation unit 5 includes a display unit 6 and a key input unit 7.

  For example, a magnetron M (see FIG. 1) as heating means is disposed behind the operation unit 5 in the casing 2, and microwaves generated from the magnetron M pass through the waveguide from the antenna (not shown) to the heating chamber. 3 is emitted. As shown in FIG. 1, the magnetron M is driven by a drive voltage supplied from a high voltage transformer T.

  The two terminals of the cathode MK of the magnetron M are connected to the two terminals of the heater winding TH of the high voltage transformer T, respectively, and the anode MA of the magnetron M is grounded. One terminal of the cathode MK of the magnetron M is connected to one terminal of the high voltage capacitor C and to the anode of the high voltage diode D. The other terminal of the high voltage capacitor C is connected to one terminal of the secondary winding T2 of the high voltage transformer T, and the other terminal of the secondary winding T2 of the high voltage transformer T is grounded. The cathode of the high voltage diode D is grounded. The high voltage capacitor C and the high voltage diode D constitute a half-wave voltage doubler rectifier circuit RC.

  One terminal of the primary winding T1 of the high-voltage transformer T is connected to one terminal of the magnetron drive control relay R, and the other terminal of the magnetron drive control relay R is connected to the AC power source V via the first door switch DS1. One terminal is connected. A control signal from the control unit 11 is input to the control terminal of the magnetron drive control relay R. On the other hand, the other terminal of the primary winding T1 of the high-voltage transformer T is connected to the other terminal of the AC power supply V via the second door switch DS2. Further, a monitor switch MS is interposed between the other terminal of the primary winding T1 of the high voltage transformer T and the other terminal of the magnetron drive control relay R.

  The two door switches DS1, DS2 are switches that are turned on / off in conjunction with the opening / closing of the door 4, and are turned off when the door is opened and turned on when the door is closed. The monitor switch MS is also a switch that is turned on / off in conjunction with the opening / closing of the door 4, but is opposite to the door switches DS1, DS2 and is turned on when the door is opened and turned off when the door is closed. . When the door is closed, the monitor switch MS is turned off and then the door switches DS1 and DS2 are turned on. When the door is opened, the door switch DS1 and DS2 are turned off and then the monitor switch MS is turned on. ing.

  When the door 4 is closed, the monitor switch MS is opened, and then the two door switches DS1, DS2 are closed. When the magnetron drive control relay R is turned on in this state, the AC voltage from the AC power supply V is supplied to the primary winding T1 of the high voltage transformer T. As a result, in the high voltage transformer T1, an AC voltage suitable for the cathode MK of the magnetron M is induced in the heater winding TH, and an AC voltage suitable for the oscillation of the magnetron M is induced in the secondary winding T2. The AC voltage induced in the heater winding TH of the high-voltage transformer T is supplied to the cathode MK of the magnetron M, whereby the magnetron M is heated. The AC voltage induced in the secondary winding T2 of the high-voltage transformer T is rectified by the half-wave voltage doubler rectifier circuit RC, and the rectified high voltage is supplied to one terminal of the cathode MK of the magnetron M. As a result, the magnetron M starts an oscillation operation. Microwaves are output by the oscillation operation of the magnetron M, and the output microwaves are supplied to the heating chamber 3, and the object to be heated in the heating chamber 3 is heated.

  On the other hand, when the door 4 is opened, the two door switches DS1 and DS2 are opened, and then the monitor switch MS is closed. In this state, even if the magnetron drive control relay R is turned on, the AC voltage from the AC power source V is not supplied to the primary winding T1 of the high voltage transformer T, and the magnetron M does not operate.

  The monitor switch MS is provided to prevent malfunction of the magnetron M when the door switches DS1 and DS2 are welded by heating and the door switches DS1 and DS2 remain closed even when the door 4 is opened. Yes. That is, since the monitor switch MS is configured to be closed when the door 4 is opened, even if the door switches DS1 and DS2 remain closed due to welding of the contacts, the monitor switch MS is closed. Therefore, a short circuit is formed with respect to the AC power source V, the AC voltage from the AC power source V is not supplied to the primary winding T1 of the high voltage transformer T, and the magnetron M does not operate. Accordingly, it is possible to prevent the microwave from leaking outside the cooking device 1 by operating the magnetron M with the door 4 opened.

  The cooker 1 is provided with an infrared sensor 12 for detecting the heating state in the heating chamber 3, and an output signal of the infrared sensor 12 is given to the control unit 11. Further, an output signal from the key input unit 7 is also given to the control unit 11. When the key input unit 7 instructs to set and cancel the demonstration mode in which the operation of the cooking device 1 is demonstrated with the magnetron M stopped, the key input unit 7 selects the content of the operation parameter that defines the operation mode of the cooking device 1. The user operates when inputting the operation content of the cooking device 1. Moreover, the key input part 7 has a memory key, and the cooking device 1 can memorize | store a heating time corresponding to this memory key. Thereby, the user of the cooking device 1 can set the heating time only by pressing the memory key when setting the heating time.

  The control unit 11 operates the cooker 1 based on the output signals from the infrared sensor 12 and the key input unit 7, the stored contents of the nonvolatile memory 13, and the like, for example, the display unit 6, the magnetron drive control relay R, the cooking The operation of the end sound output unit 14 is controlled. The control unit 11 is configured by a microcomputer, for example, and includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. Is done.

  The display unit 6 displays the input content from the key input unit 7 and the operation state of the cooking device 1 based on the control signal from the control unit 11 so that the display brightness can be set in stages. It is configured. In the present embodiment, it is assumed that the display brightness can be set to any one of three levels of “bright”, “standard”, and “dark”.

  The cooking end sound output unit 14 outputs a cooking end sound for notifying the user of the end of cooking based on a control signal from the control unit 11, and the quality of the cooking end sound is selected from a plurality of types. One can be selected, and the volume of the cooking end sound can be set in stages. In the present embodiment, one of two types, “melody 1” and “melody 2”, can be selected as the sound quality of the cooking end sound, and “large”, “medium”, “ It can be set to any of the three levels of “small”.

  The non-volatile memory 13 is realized by an EEPROM (Electrically Erasable Programmable Read Only Memory), and a mode storage area for storing whether or not the demo mode is used, and operation modes of various functions provided in the cooking device 1 A parameter storage area for storing operation parameters that define The operation parameters are, for example, the display brightness on the display unit 6, the quality and volume of the cooking end sound in the cooking end sound output unit 14, and the heating time stored in association with the memory key. In the present embodiment, two storage areas of addresses 10h to 1Fh and addresses 20h to 2Fh are set in the nonvolatile memory 13 as parameter storage areas. In the two parameter storage areas, predetermined initial values are written at the time of factory shipment.

Then, operation | movement of the cooking appliance 1 is demonstrated.
[Demo mode setting]
In the cooking device 1, when a predetermined setting operation is performed by the key input unit 7, the control unit 11 recognizes the predetermined setting operation and writes that it is in the demo mode in the mode storage area of the nonvolatile memory 13. As a result, the demo mode is set in the cooking device 1. The demo mode is a mode in which the operation of the cooking device 1 is demonstrated with the magnetron M stopped as described above. When the demo mode is set, for example, the display unit 6 displays that the demo mode is set. In addition, as setting operation performed when setting demo mode, in order to prevent a general user from setting demo mode accidentally, operation normally performed with the cooking device 1, for example, operation performed when instructing cooking, It is desirable to set different special operations.

[Release demo mode]
In cooking device 1, when a predetermined release operation is performed by key input unit 7, control unit 11 recognizes the predetermined release operation, and writes the content written in the mode storage area of nonvolatile memory 13 (being in demo mode). to erase. Thus, the demo mode is canceled in the cooking device 1, and a so-called cooking mode is set. In addition, when the control unit 11 displays on the display unit 6 that it is in the demo mode, the display is erased. The canceling operation performed when canceling the demo mode is preferably an operation different from the normal operation performed on the cooking device 1 as in the setting operation. The same operation as the operation may be performed.

[Change operation parameter settings]
FIG. 3A is a flowchart for explaining the processing contents of the control unit 11 when setting operation parameters. In step a1, it is confirmed whether or not the parameter setting operation has been performed by the key input unit 7. When it is determined in step a2 that the parameter setting operation has been performed, the demo mode is referred to by referring to the mode storage area of the nonvolatile memory 13 in step a3. It is determined whether or not is set.

  When the demo mode is set, the storage address of the nonvolatile memory 13 to which the operation parameter is written is designated as 20h to 2Fh in Step a4, and the input operation parameter is designated as the address 20h to 2Fh of the nonvolatile memory 13 in Step a6. Write to the corresponding address.

  If the demo mode is not set, the storage address of the nonvolatile memory 13 to which the operation parameter is written is specified as 10h to 1Fh in step a5, and the input operation parameter is specified as the address 10h to 1Fh in the nonvolatile memory 13 in step a6. Write to the corresponding address.

  Thus, in the cooking device 1, the operation parameters are written in different storage areas of the nonvolatile memory 13 when the demo mode is set and when the demo mode is canceled.

[When power is turned on]
FIG. 3B is a flowchart for explaining the processing content of the control unit 11 when the cooking appliance 1 is turned on. When the cooker 1 is turned on, the mode storage area of the non-volatile memory 13 is referred to in step b1, and if it is determined that the demo mode is set in step b2, the process proceeds to step b3 to read out the operation parameters. The read address of the memory 13 is designated as 20h to 2Fh, and necessary operation parameters are read from the addresses 20h to 2Fh of the nonvolatile memory 13 in step b5. If it is determined that the demo mode is set after the power is turned on, the display unit 6 displays that the demo mode is set as in the demo mode setting operation.

  If it is determined in step b2 that the mode is not the demo mode, the process proceeds to step b4, where the read address of the nonvolatile memory 13 from which the operation parameter is read is designated as 10h to 1Fh. Read the required operating parameters.

[At the time of operation for cooking]
In the cooking device 1, when an operation for cooking is performed by the key input unit 7, an operation according to the input operation content is performed. However, in the demo mode state, the operation is controlled based on the input operation content and the storage content of the addresses 20h to 2Fh of the nonvolatile memory 13, whereas in the demo mode release state, the input operation content and the non-volatile The operation is controlled based on the stored contents of addresses 10h to 1Fh of the memory 13. In the demo mode state, the magnetron M is not driven.

  In the demo mode state, for example, an object to be heated such as food is placed in the heating chamber 3, the door 4 is closed, and when the heating time is input from the key input unit 7, the input time is displayed on the display unit 6. Thereafter, even if the start key is pressed, the magnetron M is not driven. When the input heating time has elapsed, a cooking end sound for notifying the end of cooking is output. The heating time can also be input by operating the memory key of the key input unit 7 and reading the heating time stored in the nonvolatile memory 13. Thus, in the demo mode state, the store clerk and the like can demonstrate the operation of the cooking device 1 at the store.

  On the other hand, in the demo mode release state (cooking mode state), for example, when an object to be heated such as food is put into the heating chamber 3 and the door 4 is closed, and the heating time is input from the key input unit 7, the display unit 6 is input. The time is displayed. Thereafter, when the start key is pressed, the magnetron M is driven and the object to be heated is heated. When the input heating time has elapsed, the magnetron M is stopped and a cooking end sound for informing the end of cooking is output. It is to be noted that the heating time can be input by operating the memory key of the key input unit 7 as in the demo mode state. As described above, in the demo mode release state, a general user or the like can use the cooking device 1 in a desired operation mode.

  As described above, in the cooking device 1 of the present embodiment, two storage areas for writing a plurality of operation parameters that define the operation modes of various functions provided in the cooking device 1 are set in the nonvolatile memory 13, and in the demo mode state. The operation parameter set in step 1 and the operation parameter set in the demo mode release state are written in different storage areas of the nonvolatile memory 13.

  Therefore, even when the sales clerk at the store sets the demo mode and performs the operation of the cooking device 1 at the store, even if the optimal operation parameter is set for the demonstration, the set operation parameter is the address 20h of the nonvolatile memory 13. Since the initial value of the operation parameter at the time of shipment from the factory is held at the address 10h to 1Fh of the nonvolatile memory 13, when the operation for canceling the demo mode is performed, the control unit 11 sets the operation parameter. Operation parameters can be initialized simply by changing the read address.

  As a result, when selling the cooker 1 used for the operation demonstration at the store and handing it over to the purchaser, the store clerk only needs to perform an operation to cancel the demo mode. Since there is no need to reset and initialize the operation parameters one by one, the operation parameter initialization work by the operator becomes unnecessary, and the burden on the operator is greatly reduced. Further, since the store clerk is prevented from forgetting the initialization of the operation parameter, it is not necessary for the customer who purchased the cooking device 1 to initialize the operation parameter, and the customer is not burdened.

(Second Embodiment)
The cooker according to the second embodiment of the present invention has the same basic configuration as the cooker shown in FIG. 1, but the storage area for storing a plurality of operation parameters is the storage area at addresses 10h to 1Fh. The only difference is that. Hereinafter, the operation of the cooking device of the second embodiment will be described.

[Demo mode setting]
Since the operation content of the operator when setting the demo mode and the processing content performed by the control unit 11 of the cooking device are the same as those in the first embodiment, description thereof will be omitted.

[Release demo mode]
The operator's operation content when canceling the demo mode is the same as that of the first embodiment, but the processing content of the control unit 11 is different from that of the first embodiment. FIG. 4 is a flowchart for explaining the processing contents of the control unit 11 when the demo mode is canceled.

  In step c1, it is confirmed whether or not the demo mode canceling operation has been performed by the key input unit 7, and if it is determined in step c2 that the demo mode canceling operation has been performed, the contents written in the mode storage area of the nonvolatile memory 13 (in demo mode) If the display unit 6 indicates that it is in the demo mode, the display is deleted, and the storage contents of the parameter storage area of the nonvolatile memory 13 are rewritten to predetermined initial values. Initialize the operating parameters.

  Specifically, “melody 1” is written as the quality of the cooking end sound in step c3, “medium” is written as the volume of the cooking end sound in step c4, and the cooking time is stored in correspondence with the memory key in step c5. “1 minute” is written, and “standard” is written as the luminance of the display unit 6 in step c6. The initial values of the operating parameters are stored in a ROM provided in the microcomputer that constitutes the control unit 11.

  As described above, in the second embodiment, when the operator performs the demo mode release operation, the storage contents of the mode storage area of the nonvolatile memory 13 are erased, and the operation parameters of the parameter storage area are rewritten to the initial values. Is initialized.

[Change operation parameter settings]
In the cooking device, when a parameter setting operation is performed by the key input unit 7, the control unit 11 writes the input parameter to a corresponding address among the addresses 10 h to 1 Fh of the nonvolatile memory 13. This process is the same in both the demo mode state and the demo mode release state.

[When power is turned on]
When the cooker is turned on, the control unit 11 refers to the mode storage area of the non-volatile memory 13, and when it is determined that the demo mode is selected, the control unit 11 displays the display unit 6 as in the demo mode setting operation. Display that it is in demo mode.

[When operating for cooking]
In the cooking device, when an operation for cooking is performed with the key input unit 7, an operation according to the input operation content and the storage content of the addresses 10 h to 1 Fh of the nonvolatile memory 13 is performed. However, the magnetron M is not driven in the demo mode state.

  In the demo mode state, for example, an object to be heated such as food is placed in the heating chamber 3, the door 4 is closed, and when the heating time is input from the key input unit 7, the input time is displayed on the display unit 6. Thereafter, even if the start key is pressed, the magnetron M is not driven. When the input heating time has elapsed, a cooking end sound for notifying the end of cooking is output. The heating time can also be input by operating the memory key of the key input unit 7 and reading the heating time stored in the nonvolatile memory 13. Thus, in the demo mode state, the store clerk can demonstrate the operation of the cooking device at the store.

  On the other hand, in the demo mode release state (cooking mode state), for example, when an object to be heated such as food is put into the heating chamber 3 and the door 4 is closed, and the heating time is input from the key input unit 7, the display unit 6 is input. The time is displayed. Thereafter, when the start key is pressed, the magnetron M is driven and the object to be heated is heated. When the input heating time has elapsed, the magnetron M is stopped and a cooking end sound for informing the end of cooking is output. It is to be noted that the heating time can be input by operating the memory key of the key input unit 7 as in the demo mode state. As described above, in the demo mode release state, a general user or the like can use the cooking device in a desired operation mode.

  As described above, in the cooking device of the present embodiment, when the demo mode release operation is performed by the operator, the storage contents of the mode storage area of the nonvolatile memory 13 are erased, and the values of the operation parameters in the parameter storage area Is rewritten to a predetermined initial value and initialized. Therefore, even if the sales clerk at the store performs the operation of the cooking device at the store, even if the optimal operation parameter is set for the demonstration, the operation parameter is initialized when the demo mode is released.

  As a result, when selling the cooker used for the operation demonstration at the store and handing it over to the purchaser, the store clerk need only perform the operation to cancel the demo mode, and the store clerk operates as before. Since there is no need to reset and initialize the parameters one by one, the operator does not need to initialize the operation parameters, and the burden on the operator is greatly reduced. Further, since the store clerk is prevented from forgetting the initialization of the operation parameter, it is not necessary for the customer who has purchased the cooker to initialize the operation parameter, and the customer is not burdened.

  In the first and second embodiments described above, the case of a cooker provided with a magnetron M as a heating means has been described. However, the present invention is applied to a cooker provided with a so-called electric heater composed of, for example, a nichrome wire as a heating means. May be applied.

  The present invention can be applied to a cooking device having a demo mode set when a store clerk performs an operation demonstration at a store. Further, the present invention can be applied not only to a cooker provided with a magnetron as a heating means but also to a cooker provided with a magnetron and an electric heater.

It is a block diagram which shows the basic composition of the cooker 1 which is 1st Embodiment of this invention. It is a perspective view which shows the external appearance of the cooking appliance. It is a flowchart for demonstrating the processing operation of the control part 11 in 1st Embodiment. It is a flowchart for demonstrating the processing operation of the control part 11 in 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cooker 2 Casing 3 Heating chamber 4 Door 5 Operation part 6 Display part 7 Key input part 11 Control part 12 Infrared sensor 13 Non-volatile memory (EEPROM)
14 Cooking end sound output section M Magnetron MA Anode MK Cathode RC Half-wave voltage doubler rectifier C High voltage capacitor D High voltage diode T High voltage transformer T1 Primary winding T2 Secondary winding TH Heater winding R Magnetron drive control relay DS1 1st Door switch DS2 Second door switch MS Monitor switch V AC power supply

Claims (5)

Heating means;
Input means for inputting the operation content of the cooker;
Mode switching means for instructing to set and release a demo mode that operates according to the operation content input from the input means in a state where the heating means is stopped;
It has a mode storage area for storing the cooker mode and two parameter storage areas for storing a plurality of operation parameters for defining the operation mode of the cooker. Each parameter storage area has predetermined initial contents. A non-volatile memory in which is stored,
Parameter selection means for selecting the contents of each operation parameter;
Based on the instruction content from the mode switching means and the selection content from the parameter selection means, the nonvolatile memory is written, the operation content input from the input means and the memory read from the nonvolatile memory Control means for controlling the operation of the cooker based on the contents,
When the setting of the demo mode is instructed by the mode switching means, the control means writes that the demo mode is in the mode storage area, and that the demo mode is stored in the mode storage area In the state, when the first parameter storage area is selected as the storage area for writing and reading the operation parameters, and when the mode switching means is instructed to cancel the demo mode, the mode storage area is in the demo mode. The cooking is characterized in that the second parameter storage area is selected as a storage area for writing and reading operation parameters in the demo mode release state in which the demo mode is erased and erased from the mode storage area. vessel. 2. The cooking device according to claim 1, wherein in the demo mode state, when the content of the operation parameter is selected by the parameter selection unit, the control unit stores the content of the selected operation parameter in the first parameter storage area. When the operation content is input from the input means, the operation of the cooking device is performed with the heating means stopped based on the input operation content and the operation parameter read from the first parameter storage area. Control
In the demo mode release state, when the content of the operation parameter is selected by the parameter selection unit, the content of the selected operation parameter is written in the second parameter storage area, and when the operation content is input from the input unit, A cooker characterized in that the operation of the cooker is controlled based on the input operation content and the operation parameter read from the second parameter storage area. Heating means;
Input means for inputting the operation content of the cooker;
Mode switching means for instructing to set and release a demo mode that operates according to the operation content input from the input means in a state where the heating means is stopped;
It has a mode storage area for storing the cooker mode and a parameter storage area for storing a plurality of operation parameters for defining the operation mode of the cooker. The parameter storage area stores predetermined initial contents. Non-volatile memory
Parameter selection means for selecting the contents of each operation parameter;
Based on the instruction content from the mode switching means and the selection content from the parameter selection means, the nonvolatile memory is written, the operation content input from the input means and the memory read from the nonvolatile memory Control means for controlling the operation of the cooker based on the contents,
When the setting of the demo mode is instructed from the mode switching means, the control means writes that the demo mode is in the mode storage area, and when the mode switching means is instructed to cancel the demo mode, A cooker characterized by erasing the demonstration mode from the storage area and writing predetermined initial contents in the parameter storage area.   4. The cooker according to claim 3, wherein when the content of the operation parameter is selected by the parameter selection unit, the control unit writes the content of the selected operation parameter in the parameter storage area, and the operation content is input from the input unit. In the demo mode state, the operation of the cooking device is controlled in a state where the heating means is stopped based on the input operation content and the operation parameter read from the parameter storage area. In the released state, the cooker controls the operation of the cooker based on the input operation content and the operation parameter read from the parameter storage area.   The cooker according to any one of claims 1 to 4, wherein the instruction for setting the demo mode is a predetermined special input operation in the input means.

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