JP2013092360A - Heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve usability of a complicated heating cooker of high function.SOLUTION: This heating cooker includes: a heating chamber 2 having an opening at its front face to receive foods; a heating source for heating the foods received in the heating chamber 2; a door 3 for openably and closably covering a front opening of the heating chamber; an operating part 4 disposed on the door 3, and having an input means constituted of a plurality of keys and/or dials for setting operational contents of the heating source, and a plurality of display means for displaying set contents, the input contents by the input means, an operating state of the heating source, and the like; a display means drive controlling means for controlling the display drive of the display means; and a control means for controlling the motion of the heating source on the basis of the input setting of the input means. The plurality of display means are connected to the single display means drive controlling means to be driven.

Description

  The present invention relates to a display unit and an operation unit of a cooking device using a microcomputer.

  A conventional cooking device is provided with a door on the entire front surface of a heating chamber for heating food, and includes an operation unit and a single display unit on the door, and the operating state of the cooking device and setting information set by the operation unit Was displayed (see Patent Document 1). In some cases, an operation unit and a display unit are arranged above or below the door (see Patent Documents 2 and 3). Some IH cooking heaters are provided with independent operation units and display units for each of a plurality of heating sources, and display is driven by independent microcomputers, respectively (see Patent Document 4).

JP 2007-003120 A. JP 2006-266525 A. Japanese Patent Application Laid-Open No. 2002-349871. JP-A-3-241234.

  However, in the conventional cooking device, in order to improve the usability, it is necessary to configure the transparent window provided on the door as large as possible so that the heating state of the food in the heating chamber can be confirmed. I had to make it light and long and make it as small as possible. For this reason, the display unit provided in the operation unit is not as high as the operation unit, and it is difficult to configure an easy-to-see display in a thin display unit having a slightly horizontally long shape. That is, since the display pixels are displayed in a horizontally long manner, the operation unit cannot be configured in the vicinity of the display, and as a result, the operation is complicated. Further, even if an attempt is made to increase the amount of information displayed at one time using a full-dot LCD, the displayed characters must be made small, and the usability cannot be improved.

  In addition, when a plurality of display devices are to be provided, it is necessary to mount the number of microcomputers that control the display devices as many as the number of display devices, and the mounting space is narrow, which makes mounting very difficult. Also, even if some space can be secured, unlike cooking heaters with multiple heating units, operation units, and display units, in heating cookers such as microwave ovens that operate a single heating chamber with a single operation unit The problem is that if a separate microcomputer controls each display device, there will be a time difference between turning on and off the display when interrupt processing occurs in the microcomputer, and the user will feel unnatural movements. was there.

  In addition, in the microwave oven, the design of a simple operation part with as few keys as possible is preferred in terms of design, but in addition to the range function and the oven function, those with a steam function are becoming mainstream, However, there is a big problem that the operation of complicated functions must be configured in a manner that is easy for the user to understand by using a simple operation unit to improve usability.

  The present invention has been made to solve the above-described problems, and an object thereof is to improve the usability of a highly functional and complicated cooking device.

In the heating cooker, one heating chamber having an opening on the front surface for storing food, a heating source for heating the food stored in the heating chamber, a door that covers the front opening of the heating chamber so as to be openable and closable, Input means comprising a plurality of keys and / or dials provided on the door for setting the operation contents of the heating source, and two display means for displaying the setting contents, the input contents by the input means, the operation state of the heating source, etc. A display means drive control means for controlling the display drive of the two display means, and a control means for controlling the operation of the heating source based on the input setting of the input means. One display means is connected to and driven by a single display means drive control means, the two display means are provided corresponding to the one heating chamber, and one of the two display means is the input The main display means is arranged as a main display means for mainly displaying the input setting information input by the stage, and the other is configured as a sub display means for mainly displaying the operation method of the input setting operation. Are arranged at the corners of the door, and the main display means is the same as or larger than the sub display means.

  According to the cooking device of the present invention, it is possible to improve the usability of the cooking device.

Embodiment 1 FIG.
FIG. 1 is a perspective view of a microwave oven showing Embodiment 1 of the present invention. In FIG. 1, a substantially box-shaped heating chamber 2 formed in the microwave oven 1 has an opening on the front side, and is attached to the opening so as to be openable and closable. A door 3 constituting the front wall is provided. An operation unit 4 is provided below the door 3. The input unit 5 sets the heating conditions for the food stored in the heating chamber 2. The main display unit 6 and the door 3 Sub display means 7 is arranged on the lower right side. The input means 5 is a mode selection key 5a to 5d on the lower left side of the door 3 and acts as a decision key when pressed near the main display unit 6, and acts as a dial when rotated. A left dial 5h with a built-in key 5e, and a right dial 5i with a built-in start key 5f that acts as a start key when pressed near the sub-display unit 7 and acts as a dial when rotated. Each of the keys 5g is arranged. Also, a left pilot sign 16a that lights up or blinks to prompt the operation when the left dial 5h or the enter key 5e is required is located near the left dial 5h. A right pilot sign 16b is provided that illuminates or blinks to prompt the user to operate the 5i or the start key 5f. The left dial 5h is mainly used when the user performs a setting operation while looking at the main display unit 6, and the right dial 5i is mainly used when the user performs a setting operation while looking at the sub display unit 7. Is configured to do. Each pilot sign 16a, 16b is composed of three color LEDs (red, blue, green) so that the same color as the display color of the display means can be displayed. By controlling, various lighting colors can be realized.

  FIG. 2 is a control block diagram of the microwave oven. In FIG. 2, the operation board 4 a is provided in the door 3 and constitutes the operation unit 4. The operation board 4a cancels a mode selection key such as a range key 5a, an oven key 5b, a steam key 5c, and an auto menu key 5d, a determination key 5e for determining various settings, a start key 5f for starting cooking, a cooking operation and settings. Input means 5 comprising a key 5g, a left dial 5h for selecting a heating temperature and time, a right dial 5i for selecting an auto menu, a main display means 6, a sub display means 7, and a left to be lit for operation assistance The auxiliary input display means 16 includes a pilot sign 16a and a right pilot sign 16b, and a display microcomputer 8 that controls them. In order to make the mode selection keys easy to identify, the range key is yellow, the oven key is red, the steam key is blue, and the auto menu key is green.

  The display microcomputer 8 has communication ports 8a, 8b, and 8c, and transmits information input by the input means 5 to the control microcomputer 10 on the control board 9 to be described later via the communication port 8a and communicates display data. The data is transmitted to the LCD driver 6a on the main display means 6 through the port 8b, and display control of the main display means 6 is performed. There are serial data communication, bus communication, and the like as a communication method performed at the communication port. At the same time, display data is transmitted to the LCD driver 7a on the sub display means 7 via the communication port 8c, and display control of the sub display means 7 is performed. Here, in the present embodiment, the main display means 6 is constituted by a color LCD capable of changing the display character color and the sub display means 7 is constituted by a full dot LCD.

  The control board 9 provides high-frequency information to the user such as a buzzer that notifies the user of the end of cooking with a notification sound, a door open / close detection means 12 that detects the open / closed state of the door 3, and food stored in the heating chamber 2. High frequency heating means 13 for driving and controlling a magnetron (not shown) for heating, and a heater (not shown) for heating food stored in the heating chamber 2 provided on the ceiling and bottom surface of the heating chamber 2 are driven. The heater heating means 14 to be controlled, the internal temperature detection means 15 to detect the temperature in the heating chamber 2, and the control microcomputer 10 to control these are configured. The control microcomputer 10 includes a communication port 10a, similar to the display microcomputer 8, and is based on input information received from the display microcomputer 8, information on the door opening / closing detection means 12, and information on the internal temperature detection means 15. The notifying means 11 and the heating control means 13 and 14 are driven and controlled.

  Next, the setting operation at the time of manual cooking of this embodiment will be described with reference to the flowcharts of FIGS. 3 to 5 are flow charts showing the operation during manual cooking of the microwave oven. A in FIG. 3 and A in FIG. 4, B in FIG. 4 and B in FIG. 5 are connected according to the flow. is there. Here, a case where the oven key 5b is selected and the set temperature is 200 ° C. and the cooking time is set to 30 minutes will be described as an example. When the oven key 5b of the input means 5 is received (S1), the display microcomputer 8 transmits display data to the LCD driver 6a on the main display means 6 from the communication port 8b, and the "oven" key is sent to the main display means 6. “0 seconds” is lit in black, and “set temperature ° C.” is flashed in red. At the same time, the display data is transmitted from the communication port 8c to the LCD driver 6a on the sub display means 7, and "Please select a preset temperature with the left dial" is flashed on the sub display means 7. Further, the left pilot sign 16a is displayed blinking in red (S2).

  As described above, the oven key 5b is configured in red, and the menu display "oven" displayed on the main display means 6 is displayed in red as described above. It can be understood naturally that the menu is a setting condition related to the oven key, and it can be easily confirmed whether a menu that matches the menu that the user pressed is accepted.

  Next, the display microcomputer 8 determines whether the left dial 5h of the input means 5 has been operated (S3). The process waits until the user detects the operation of the left dial 5h according to the above-described display procedure. If the user detects the operation of the left dial 5h, the process proceeds to step S4. In accordance with such a display procedure, support display is performed so that the user can set the desired temperature “200 ° C.” with the left dial 5h so as not to hesitate.

  The operation guide such as the above-mentioned display displayed on the sub display means 7 may be simultaneously with the display on the main display means 6 or for a certain period of time (for example, so as to be displayed when the user gets lost in operation). It may be displayed after 5 seconds). In the case of displaying after a certain period of time, if there is a predetermined number of signals for which “no” is returned in step S4, or if the timer is activated at the start of the processing in S2 and the time until “no” is displayed is elapsed. It is displayed when it is done.

  As described above, when the operation guide is displayed on the sub display means 7, the information to be currently set in the main display means 6 is always displayed in the main display means 6 and the operation method is always guided in the sub display means 7 if the operation guide is displayed. Therefore, even when the user is confused about the setting method, the user can make the setting while looking at the sub display means 7, and the trouble of searching for the instruction manual that has been usually stored or the instruction manual is read back. This saves you the trouble of having to operate it while holding the manual. In addition, since the operation guide is always displayed on the sub display means 7, it is possible to display the guide for the user even during the operation of setting the menu for which the user knows how to use the user. Since it can appeal, it is easy for the user to recognize that it is better to look at the sub display means 7 when he / she gets lost in the menu setting operation procedure that is not usually used.

  On the other hand, depending on the user, when the guide display is always displayed on the sub display means 7, there are some users who feel bothersome or do not want to display a known operation. In such a case, it is possible to display when no operation signal is received until a certain time (for example, 5 seconds) elapses, as displayed when the user is lost in operation. The troublesomeness that the guide is displayed for each operation can be eliminated, and the operation can be performed without feeling the display of the known operation normally. In particular, there is an advantage that the user's attention can be drawn more when the guide is displayed anew because the guide is not normally displayed.

  A setting mode for setting such a display method may be provided in advance so that the guide display timing can be set according to the preference of the user. In such a setting mode, it is selected from the menus such as “always display simultaneously with display of the display means 6”, “display when no operation has been performed for a certain period of time since the display of the display means 6”, and “do not display the guide”. By doing so, it becomes possible to match the user's intended use feeling.

  In addition, when “display when no operation is performed for a certain period of time since the display of the display unit 6” is selected in the above setting, the user may be allowed to select how many seconds later the display is to be performed. . With this configuration, it can be freely set according to the user's intended use feeling. It should be noted that when the default time for displaying when a certain amount of time has elapsed or when the user cannot select only the predetermined time, the display means 6 displays 3 to 3. It is desirable to be between 20 seconds, especially between 5 and 15 seconds or less. This is because if the time is shorter than 5 seconds, the user is likely to receive an impression that is almost the same as the display of the display means 6 and the guide are simultaneously displayed. In addition, when the time is shorter than 3 seconds, it is assumed that what should be displayed at the same time is not displayed at the same time, giving an impression that there is a time lag. On the other hand, if it exceeds 15 seconds, it is easy to misunderstand that the guide display is not displayed, and if it is longer than 20 seconds, the guide displayed with great effort will be left in front of the cooker in order to find the instruction manual. This is because it becomes difficult.

  Such a setting may be configured so that it can be performed at the initial setting. Alternatively, the setting mode is sequentially activated when it is desired to change the setting, and can be changed at any time when the user desires to change the setting. Ah.

  Subsequently, when the operation of the left dial 5h is accepted, the display microcomputer 8 displays the “oven” in red and “0 second” in black on the main display 6 by the same means as described above, and is selected. “Set temperature 200 ° C.” blinks in red, the sub display means 7 blinks “Please press the enter key to determine the set temperature” and the left pilot sign blinks in green (S4).

  Here, in step S2, since the display of the set temperature displayed on the main display means 6 is red, the left pilot sign 16a is also blinked in red. However, in step S4, the left dial 5h has already been operated in S3 and the set temperature has been input. Since the left dial 5h is provided at the same position as the enter key 5e, the pilot sign 16a is thus displayed in the same color as the setting item displayed on the main display means 6 before the input means 5 is operated. Thus, which input means 5 should be operated is guided, and once input is performed, when a different operation method is required for the input means 5 arranged at the same position, the pilot sign is obtained by changing the color. By displaying 16a, the user can easily understand that an operation different from the conventional operation is necessary. When different operation methods are required for the input means 5 arranged at the same position in this way, the color of the pilot lamp to be displayed is different from the color displayed on the main display means 6, and other displays. It is preferable that the setting items have colors that are not used by the main display unit 6 because the user can be prevented from being confused.

  In step S5, when the display microcomputer 8 accepts the input of the enter key 5e, the main display means 6 displays “oven” in red and “set temperature 200 ° C.” in black, and “0 second” flashes in blue. Then, the sub display means 7 blinks “Please select the cooking time with the left dial” and the left pilot sign 16a blinks in blue (S6). Subsequently, the display microcomputer 8 determines whether the left dial 5h of the input means 5 has been operated (S7). The process waits until the operation of the left dial 5h is detected. When the operation of the left dial 5h is detected, the process proceeds to step S8 in FIG. When the operation of the left dial 5h is accepted, the display microcomputer 8 displays “oven” in red and “set temperature 200 ° C.” in black on the main display means 6 and blinks the selected “30 minutes” in blue. Then, the sub display means 7 blinks “Please press the enter key to determine the set temperature” and the left pilot sign 16a blinks green (S8).

  In step S9, when the display microcomputer 8 accepts the input of the enter key 5e, the main display means 6 displays "oven" in red, "set temperature 200 ° C", and "30 minutes" in black, and the sub display means. 7 is displayed with blinking “Please start the cooking by pressing the start key” and the right pilot sign 16b blinks in red (S10). Next, when the display microcomputer 8 receives the input of the start key 5f (S11), the display microcomputer transmits the set cooking information, that is, the oven, the set temperature 200 ° C., and the cooking time 30 minutes to the control microcomputer 10 from the communication port 8a. (S12). Receiving the setting information, the control microcomputer 10 starts the oven 200 ° C. setting and cooking time of 30 minutes (S13). When cooking is started, the heater heating means 14 is driven, the inside of the heating chamber 2 is heated, and cooking is started while counting down the cooking time (S14).

  When cooking is started, the process of step S15 in FIG. 5 is started, and the control microcomputer 10 determines whether or not the inside of the heating chamber 2 is 200 ° C. or higher using the internal temperature detection means 15. When the temperature in the heating chamber 2 is lower than 200 ° C., the heater heating means 14 is turned on, and the “high temperature caution” display is lit in yellow on the main display means 6 (S16). In this case, the heater heating means 14 is turned off and the “high temperature caution” display is lit in red on the main display means 6 (S17), and the inside of the heating chamber 2 is controlled to 200 ° C. “High temperature caution” is displayed for alerting when the heating chamber 2 is at a high temperature, such as when cooking in an oven, and when it is equal to or higher than a predetermined threshold (200 ° C. in the present embodiment), By changing the display color, it is possible to promote a stronger alert. In this embodiment, the warning display is performed based on the internal temperature, but the door temperature is measured, and the door is set to a predetermined temperature (for example, when the user feels 70 ° C or higher) as a threshold value. You may make it display. In this way, since the user can be alerted by the temperature of the door or the like that is actually touched when the user cooks, the accuracy of alerting the user can be further improved.

  Next, it is determined whether the remaining time is 5 minutes or less (S18), and if it is longer than 5 minutes, the remaining time display displayed on the main display means 6 is displayed in black (S19). On the other hand, when the remaining time is 5 minutes or less, the remaining time displayed on the main display means 6 is displayed in red (S20). The remaining time count is decremented by 1 second (S21), and it is determined whether the remaining time is 0 (S22). If the remaining time is not 0, the process returns to step S15 and heating is continued. On the other hand, if the remaining time is 0 in step S22, the heater heating means 14 is turned off and the notification means 11 is driven to notify the user of the end of cooking with a notification sound (S23), and the cooking ends. (S24).

  The operation guide displayed on the sub display means 7 described in steps S2 and S3 is the same as that on the main display means 6 in S4 and S5, S6 and S7, S8 and S9, and S11 and S12. Alternatively, it may be displayed after a lapse of a certain time (for example, 5 seconds) so that it is displayed when the user is unsure of the operation, and these are the contents described in detail in S2 and S3 described above. It can be set as the same structure, and it can have the same effect.

  Next, the setting operation during auto menu cooking according to this embodiment will be described with reference to the flowchart of FIG. In the present embodiment, the auto menu is pre-stored with a cooking program corresponding to each cooking menu such as 1: boiled, 2: teriyaki, 3: boiled beans,. The user can select the desired cooking menu set for that number, and the user can cook the desired menu without having to input detailed settings. An explanation will be given by taking as an example a case where the steamed rice cake assigned to the menu number 8 is selected in the auto menu.

  FIG. 6 is a flowchart showing a setting operation during auto menu cooking in the microwave oven. When the auto menu key 5d of the input means 5 is received (S51), the display microcomputer 8 transmits display data from the communication port 8b to the LCD driver 6a on the main display means 6 as in the case of manual cooking. The “auto menu” is displayed in green on the display means 6, the default setting “menu number 1” is flashed in green, and the right pilot sign 16 b is flashed in green. At the same time, display data is transmitted from the communication port 8c to the LCD driver 6a on the sub display means 7, and "Please select a cooking menu with the right dial" blinks on the sub display means 7 and "1 .. "Yumono" is lit (S52). Next, when the display microcomputer 8 receives an operation of the right dial 5i of the input means 5 (S53), the "auto menu" is lit in green on the main display means 6 and every time the right dial 5i is turned. The menu number that is currently selected and the cooking menu corresponding to that number are displayed. When the menu number that is the menu of the steamed rice cake that you want to cook this time is selected, the right dial 5i stops rotating and is selected. “Menu No. 8” blinks in green. At the same time, “Please select the cooking menu with the right dial” and “8. Chawanmushi” are lit on the sub display means 7 and “Please press the Enter key when selected” blinks, and the left pilot sign 16a is displayed. It blinks in red (S54).

  Next, when the display microcomputer 8 accepts the input of the enter key 5e (S55), "main menu" is displayed in green and "menu number 8" is displayed in black on the main display means 6 and the sub display means 7 is displayed with " “8. Chawanmushi” is lit, “Please press the start key to start cooking” is flashed and the right pilot sign 16b flashes red (S56). Next, when the display microcomputer 8 receives the input of the start key 5f (S57), the display microcomputer sets the set cooking information, that is, the auto menu 8. The chawanmushi is transmitted from the communication port 8a to the control microcomputer 10 (S58). The control microcomputer 10 that has received the setting information drives the high-frequency heating means 13 and the heater heating means 14 according to the tea fumigation control set in advance and stored in the ROM to perform cooking by heating (S59).

  The operation after the start of cooking is the same as the operation after step S14 described in the manual oven, or the high-frequency heating means is operated instead of the heater heating means according to the menu, or these are operated in combination. The operation is almost the same as the operation after step S14, and the description thereof is omitted.

  In steps S52 and S53, S54 and S55, and S56 and S57, the operation guide displayed on the sub display means 7 described in steps S2 and S3 may be used simultaneously with the display on the main display means 6. It may be displayed after a lapse of a certain time (for example, 5 seconds) so that it is displayed when the user is confused with the operation. Also in the setting in the auto menu, the contents described in detail in the above-described S2 and S3 It can be set as the same structure, and it can have the same effect.

  In the present embodiment, the description has been made on the assumption that the character color displayed on the main display means 6 is set in advance. However, the display color can be changed to a character color with high visibility according to user preference. A mode may be installed so that the setting can be stored in the main body of the cooking device. Similarly, for the remaining time display, a mode that can be set by the user as well as a preset time may be provided, and the display color may be changed when the remaining time is set or less. Furthermore, the present invention is not limited to the time display, and can be applied to the heating chamber temperature at the time of preheating oven cooking, the remaining preheating time, and the like. By installing such a mode, it is possible to display colors according to the user's preference, and it is also possible to display in a color that is easy to see even for those who are difficult to see a specific color. Usability is improved.

  In this embodiment, when the set temperature is displayed during cooking in the oven, the indication “set temperature ° C.” flashes in red, but only “set temperature” and “° C.” flash in red, and the pilot The color of the sign may be the same color, and the temperature value display color may be changed stepwise such that the temperature decreases from blue to red as the temperature increases. That is, for example, when the set temperature can be set in increments of 10 ° C within the range of 100 ° C to 250 ° C, the set temperature 100 to 150 ° C is yellow, 160 to 200 ° C is orange, and 210 to 250 ° C is red. The colors may be classified stepwise, such as blue-blue-green-green-yellow-green-yellow-orange-red so that the color is blue at 100 ° C., yellow-green at 180 ° C., and red at 250 ° C. Color coding that gradually reddish from blue to natural may be used. In this way, by changing the display color according to the set temperature, the temperature you are trying to set can be grasped sensuously not only from the numerical value but also from the color, improving usability, In particular, elderly people with weak visual acuity and those with weak visual acuity can judge the set temperature from the color. Moreover, it can apply not only to the preset temperature at the time of oven but to the preset temperature at the time of the heating by a microwave, and the same effect can be acquired. Further, this concept may be used not only for the temperature but also for setting the cooking time. Again, from the viewpoint of time, the longer the heating time, the higher the temperature, and the same effect as described above can be obtained.

  Moreover, in this embodiment, although demonstrated using the Example which mounted two microcomputers with a use different from a display microcomputer and a control microcomputer, while driving two display means with one display microcomputer in this Example, All the processes such as the control of the heating means may be performed, and can be appropriately changed within a range in which one microcomputer is connected to the two display means and the drive is controlled.

  As mentioned above, according to Embodiment 1 of this invention, with respect to one heating chamber 2, with respect to the heating cooker provided with the one operation part 4 which has the input means 5 which consists of several operation keys etc. Since the display means 6 and 7 are provided with a plurality of LCDs, and the plurality of LCDs are connected to one microcomputer 8 and driven and controlled by communication control, the area of the substrate 4a constituting the operation unit 4 is small. Even if it exists, even if there is an interruption process in the microcomputer 8, it is possible to provide a cooking device that does not give the user a sense of incongruity. Then, by disposing a plurality of LCDs 6 and 7 in a limited area of the operation unit 4, various amounts of information can be obtained without reducing the amount of information that can be displayed on the display means in the limited area. It is possible to display.

  In the present embodiment, two LCDs 6 and 7 are provided, the main display means 6 is a color LCD of a character display LCD, and the sub display means 7 is a full dot LCD, which is necessary when performing full dot LCD display. The amount of display data can be minimized, the ROM of the microcomputer 8 can be reduced, and it can be constructed at a low cost. The main display means 6 mainly used for setting operation is a color LCD. Thus, it is possible to recognize at a glance which cooking mode is set from a plurality of cooking modes such as a range, oven, steam, and auto menu, and it is possible to provide a user-friendly cooking device.

  Further, two LCDs 6 and 7 are provided, one of which is arranged as a main display means 6 used for setting operation, approximately at the center of the operation unit 4, and the other LCD 7 is main display as sub display means 7 for guiding the setting operation. Since it is arranged at the corner of the operation unit 4 rather than the means 6 and on the right side in the present embodiment and its size is smaller than the main display means 6, only one display means is required to display a large amount of information. However, in this embodiment, the setting item is the main display means 6, and the operation guide is the sub display means 7. The setting contents and the operation guidance can be prevented from being messed up in the same display means, even when the user uses for the first time. It is possible to provide a good heating cooker easy to use that can be operated with reference to the easy-to-read display.

  Further, a dial 5h operated mainly when setting items displayed on the main display unit 6 is set near the main display unit 6, and an auto menu mainly displayed on the sub display unit 7 near the sub display unit 7. By setting the operation keys and dial 5i to be used when setting etc., it becomes possible to operate with the input means near the display means used for setting, and the usability can be improved.

  In general, when setting is performed, the cooking mode is selected first as a procedure, then the temperature and time are set, and the start key is input last. In Japan, there are many people who are right-handed, so when performing such operations, many people use their right hand. Focusing on this point, in this embodiment, the mode key for selecting the cooking mode, which is the key to be input first in the cooking mode setting procedure, in this embodiment, the range key 5a to the auto menu 5d are displayed on the operation unit 4. To select a menu when the left dial 5h for selecting the time and temperature to be input subsequently, the enter key 5e for determining the time and temperature selected with the left dial 5h, and the auto menu 5d are selected on the left side The right dial 5i determines all the settings, and the keys and dials are arranged in consideration of the order in which they are used, such as the start key 5f for starting cooking. It can be operated in a flowing manner, improving usability. In particular, with this configuration, when all input setting operations are completed and the start key 5f is pressed, the operation proceeds so that the operation unit 4 can be seen over and the start key can be easily checked. 5f can be pressed, and it is easy to prevent erroneous setting.

  It should be noted that it is possible to obtain good operability simply by arranging the input means 5 in one direction in consideration of the order of use. However, when it is arranged upward, when it is arranged vertically, such as when it is arranged downward, its usefulness is greatly influenced by the height at which the cooking device is installed. There is. On the other hand, the left-right direction has a feature that the usefulness is not increased or decreased due to such height. And as mentioned above, when attention is paid to the fact that there are more right-handed people in Japan, the usability of the input means 5 is greatly improved by arranging them in the horizontal direction and from left to right. It becomes possible.

  The main display means 6 displays the items set by the user, and displays only the currently set items in each operation process while changing the display color, as well as the dials and keys used for the setting operation. Since the pilot sign is lit or blinking in the same color as the display color, the set items, dials used for setting, etc. can be confirmed at a glance and the usability can be improved.

  In addition, in the operation section that combines the dial and the key, the color of the pilot sign that lights up when dial operation is necessary and the color of the pilot sign that lights up when key operation is necessary have been changed, so it has a composite function By operating according to the display color, the operation method can be confirmed at a glance and the usability can be improved.

  Further, the background color of the mode selection keys 5a to 5d or the character color and the mode display color displayed on the main display means 6 are configured to be the same color, so that the mode set at the time of the setting operation can be changed. Since it can be confirmed by the display color, it is possible to prevent erroneous operations and improve usability.

  In addition, the warning display such as “High temperature warning” is configured to change the display color step by step by setting a plurality of thresholds in advance. A good cooking device can be provided.

  In addition, by changing the display color according to the set temperature, it is possible to capture the temperature as a color, not just a numerical value, so that incorrect settings can be prevented and the cooking device is easy to use. Can provide.

  In addition, if the display color is changed according to the remaining time and the set cooking time, the time can be captured not only as a numerical value but also as a color sensibly, so that erroneous setting can be prevented. In addition, it is possible to provide an easy-to-use cooking device that can confirm the remaining time at a distance.

Embodiment 2. FIG.
The second embodiment of the present invention is configured such that one of the two display means is directly driven by a microcomputer. A second embodiment of the present invention will be described with reference to the control block diagram of FIG. In the second embodiment, the connection and driving method between the LCD of the main display means 6 and the display microcomputer 8 are different from those in the first embodiment. Other configurations are the same as those in FIG. Further, the operation can be the same as that of the first embodiment, and thus the description thereof is omitted.

  In FIG. 7, the display microcomputer 8 includes an LCD controller 8d, and the main display means 6 is connected to the LCD controller 8d. Specifically, the common output of the LCD controller 8d and the segment output are connected to the main display means 6, and a voltage is applied to the main display means 6 from the output to display the pixels as appropriate. On the other hand, the sub display means 7 is driven and controlled by transmitting data from the communication port 8b provided in the display microcomputer 8 to the LCD driver 7a on the sub display means 7 as in the first embodiment.

  As described above, in the second embodiment, one of the two display means is directly driven by the LCD output of the microcomputer, and the other is driven by communication control. Even a microcomputer without a communication port required for communication control of each can provide an easy-to-use heating cooker having two display means. As in the first embodiment, one display microcomputer in the present embodiment may drive the two display means and perform all processing such as control of the heating means. The range can be appropriately changed within a range in which one microcomputer is connected to two display means and driven and controlled.

Embodiment 3 FIG.
In the third embodiment of the present invention, the two display means are configured to be directly driven by a microcomputer. A third embodiment of the present invention will be described with reference to the control block diagram of FIG. In the third embodiment, the connection and driving method between the LCD of the main display means 6 and the sub display means 7 and the display microcomputer 8 are different from those in the first embodiment. Other configurations are the same as those in FIG. Also, the operation is substantially the same as that of the first embodiment, and the description thereof is omitted.

  In FIG. 8, the display microcomputer 8 includes an LCD controller 8d. In general, in a microcomputer used for an 8-bit heating cooker, the LCD controller 8d has four common outputs and about 40 segment outputs. Here, a case where a microcomputer having outputs of four commons and 40 segments is used as the display microcomputer 8 will be described as an example. Four common outputs of the LCD controller 8d of the display microcomputer 8 are branched and connected to the main display means 6 and the sub display means 7 in the middle. Of the segment outputs, 20 of 1 to 20 are connected to the main display means 6, and 20 of 21 to 40 are connected to the sub display means 7. That is, the main display means 6 and the sub display means 7 can each constitute a display of 80 pixels (4 commons × 20 segments), and one display microcomputer 8 can display various displays on the two display means. It is possible to do.

  As described above, in the third embodiment, two display means are directly connected to one microcomputer, and the common output is shared by the two display means having different display contents. Even without a microcomputer, the two display means can be driven directly. Further, since the two display means are directly driven, there is no need to incorporate an LCD driver in each display means, and it is possible to provide an easy-to-use heating cooker with two display means at a lower cost. I can do it. As in the first embodiment, one display microcomputer in the present embodiment may drive the two display means and perform all processing such as control of the heating means. The range can be appropriately changed within a range in which one microcomputer is connected to two display means and driven and controlled.

It is a main body perspective view of Embodiment 1 of the present invention. It is a control block diagram of Embodiment 1 of the present invention. It is a flowchart figure which shows the operation | movement at the time of the manual cooking of Embodiment 1 of this invention. It is a flowchart figure which shows the operation | movement at the time of the manual cooking following A of FIG. 3 of Embodiment 1 of this invention. It is a flowchart figure which shows the operation | movement at the time of the manual cooking following B of FIG. 4 of Embodiment 1 of this invention. It is a flowchart figure which shows the setting operation | movement at the time of the auto menu cooking of Embodiment 1 of this invention. It is a control block diagram of Embodiment 2 of the present invention. It is a control block diagram of Embodiment 3 of the present invention.

  DESCRIPTION OF SYMBOLS 1 Cooker, 2 Heating chamber, 3 Door, 4 Operation panel, 4a Operation board, 5 Input means, 5a Range key, 5b Oven key, 5c Steam key, 5d Auto menu key, 5e Enter key, 5f Start key, 5g Key, 5h left dial, 5i right dial, 6 main display means, 6a LCD driver, 7 sub display means, 7a LCD driver, 8 display microcomputer, 8a, 8b, 8c communication port, 8d LCD controller, 9 control board, 10 control Microcomputer, 10a communication port, 11 notification means, 12 door opening / closing detection means, 13 high frequency heating means, 14 heater heating means, 15 internal temperature detection means, input auxiliary display means 16, 16a left pilot sign, 16b right pilot Sign.

Claims (9)

One heating chamber with an opening on the front side that contains food,
A heating source for heating the food contained in the heating chamber;
A door that covers the front opening of the heating chamber so as to be freely opened and closed;
Two displays provided on the door for displaying the operation content of the heating source and including a plurality of keys and / or dials, and the setting content, the input content by the input device, the operation state of the heating source, etc. An operation unit having means;
Display means drive control means for controlling display drive of the two display means;
Control means for controlling the operation of the heating source based on the input setting of the input means,
The two display means are connected to and driven by a single display means drive control means,
The two display means are provided corresponding to the one heating chamber,
One of the two display means is arranged at the approximate center of the operation unit as main display means for mainly displaying the input setting information input by the input means,
The other is configured as a sub display unit that mainly displays the operation method of the input setting operation, and is disposed at a corner portion of the door rather than the main display unit, and the main display unit is the same as the sub display unit or the sub display unit. A cooking device characterized by having a larger configuration.   2. The heating according to claim 1, wherein the sub display unit is arranged closer to an input unit including a plurality of keys and / or a dial for setting the operation content of the heating source than the main display unit. Cooking device. The cooking device according to claim 1, wherein the display drive control means is configured to drive and control the two display means by data communication control. The cooking device according to claim 1, wherein the display drive control means is configured to drive and control one of the two display means by data communication control and directly drive and control the other. The display drive control means is configured so that both of the two display means are directly driven and controlled by a microcomputer, and a common output is connected to each of the two display means to be shared. The cooking device described. 6. The cooking device according to claim 1, wherein the main display means is a color LCD of a character display LCD, and the sub display means is a full dot LCD. Of the two display means, display means for displaying setting items that need to be input and keys and / or dials of the input means used for inputting the displayed setting items are arranged in the vicinity. The cooking device according to any one of claims 1 to 6, wherein the cooking device is a cooking device. The plurality of keys and / or dials of the input means are arranged in accordance with an input order for setting the operation content of the heating source necessary for cooking. Cooking device. 9. The plurality of keys and / or dials of the input means are arranged laterally from left to right in accordance with an input order for setting the operation content of a heating source necessary for cooking. The heating cooker described in 1.

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