JP2013238358A - Heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a user from touching a high-temperature glass.SOLUTION: A heating cooker includes: a heating chamber 2 for storing an object to be heated in a body 1; a heating means for heating the object to be heated; an operation display unit 6 for setting the heating method of the heating means; a door 3 which covers a front side of the heating chamber 2, and has a glass 23a; and a control means 9 for controlling the heating means according to the heating conditions input from the operation display unit 6. A temperature sensor B100 for sensing the temperature of the glass 23a is provided on the door 3. The control means 9 displays an alarm to the operation display unit 6 when the temperature sensed by the temperature sensor B100 is equal to or higher than a specific temperature under the heating conditions set by the operation display unit 6.

Description

  The present invention relates to a heating cooker.

  A conventional cooking device such as an electric microwave oven having a high-frequency heating means composed of a magnetron or the like includes a plurality of heating means and can perform various cooking by manual cooking and automatic cooking. Therefore, an easy-to-understand operation is desired.

  In Patent Document 1, as shown in FIGS. 4 to 6, an operation unit is provided on the front surface of the door of the heating chamber.

  Patent Document 2 employs a configuration of a soft touch panel (touch panel) in which the electrostatic capacity changes according to the contact position on the LCD display in order to perform various cooking.

JP 2010-286152 A JP 2004-219054 A

  However, in the above prior art, when the touch panel is operated through the glass provided in the window portion of the door, the temperature of the glass is increased when the temperature of the heating chamber exceeds the set temperature due to some failure. It is also possible that the rate will rise more than expected.

  The present invention has been made in order to solve the above-described problem, and includes a heating chamber for storing an object to be heated in a main body, a heating unit for heating the object to be heated, and an operation for setting a heating method for the heating unit. A display unit, a door that covers the front surface of the heating chamber, and has a glass; and a control unit that controls the heating unit according to the heating condition input from the operation display unit. A temperature sensor for detecting a temperature is provided, and the control means warns the operation display unit when the temperature detected by the temperature sensor is higher than a specific temperature with respect to the heating condition set in the operation display unit. Is displayed.

  According to the embodiment described above, when the temperature of the glass rises more than expected, it is possible to prevent the door glass from being touched.

It is a front view of the heating cooker in one Example. It is (a) top view and (b) side view of the heating cooker in one Example. It is a front perspective view of the state which removed the cover of the heating cooker, and the door opened. It is AA sectional drawing of Fig.2 (a). It is explanatory drawing of the LCD display part of the heating cooker in one Example. It is explanatory drawing of the display part with a touchscreen of the operation display part of the same heating cooker, and an operation key group. It is explanatory drawing of the top menu screen of the display part with a touch panel of the operation display part of the heating cooker. It is a block diagram which shows the schematic control circuit structure of the heating cooker.

Hereinafter, an embodiment will be described in detail with reference to the accompanying drawings.
As shown in FIGS. 1 to 4, the cooking device according to the present embodiment includes a heating chamber 2 that houses a cooking object such as food to be cooked in the main body 1, and a cooking object that is provided in front of the heating chamber 2. A door 3 that can be freely opened and closed, and a non-rotating table 4 on which a food to be cooked provided on the bottom surface of the heating chamber 2 is placed. The door 3 has a handle 26 at the top. Reference numeral 25 denotes a cover that covers both side surfaces and the upper surface of the cooking device.

  The table 4 is provided with weight sensors 5a, 5b, and 5c that support the table 4, and the cooking time is determined according to the weight of the object to be cooked detected by these weight sensors 5a, 5b, and 5c. Can do.

  A temperature sensor A40 composed of a thermistor is provided in the upper left part of the heating chamber 2, and cooking output, cooking time, etc. can be determined according to the temperature detected by the temperature sensor A40. An infrared sensor or the like may be used.

  In addition, a large window portion 23 and a glass 23 a covering the window portion 23 are provided in the central portion of the door 3, so that the inside of the heating chamber 2 can be viewed from the window portion 23. An operation display unit 6 covered with glass 23a is provided below the door 3. Further, a temperature sensor B100 that measures the temperature of the glass 23a between the operation display unit 6 and the window 23 is provided, and temperature information of the glass 23a is input to the microcomputer 210 (FIG. 8).

  And the cooking-by-heating machine of a present Example has a some heating means. In particular, various cooking methods can be performed by performing four kinds of cooking methods alone or in combination, such as a microwave oven cooking oven heating oven oven cooking oven cooking grill heating grill cooking steam cooking steam heating. It can be performed.

First, the heating means will be described with reference to FIG. 3, FIG. 4, and FIG.
Microwave cooking is a process in which microwaves are applied to the food to be cooked placed on the table 4 and the food to be cooked is actively heated by frictional heat generated by vibrating molecules such as moisture in the food to be cooked. Is the method. A feature of this microwave cooking is that the surface and internal temperature of the object to be cooked are simultaneously heated in a short time and raised.

  As shown in FIG. 3 or FIG. 4, the range heating means for performing microwave cooking in the cooking device of the present embodiment, as shown in FIG. 3 or FIG. Inverter board 8 which controls the output of the microwave which oscillates from is provided. The inverter board 8 is controlled by the control means 9 and can apply a desired microwave to the object to be cooked to perform microwave heating.

  As shown in FIG. 4, the waveguide 10 that guides the microwave oscillated from the magnetron 7 to the heating chamber 2, the rotating antenna 11 that irradiates the heating chamber 2 while stirring the microwave, and the rotating antenna 11 are rotated. In order to prevent the microwave from concentrating on a part, the control means 9 controls the antenna motor 12 to rotate the rotating antenna 11 to perform a desired stirring operation.

  The magnetron 7, the waveguide 10, the rotating antenna 11, and the antenna motor 12 are disposed in the machine chamber 13 between the heating chamber bottom 2 a and the bottom plate 30.

  Next, grill cooking will be described. An electric heater 14 is provided outside the upper wall surface of the heating chamber 2. This electric heater 14 is controlled by the control means 9, and by applying an appropriate temperature to the upper wall surface of the heating chamber 2, desired radiant heat (far infrared rays) is given to the food to be cooked placed on the table 4 to be cooked. Grill cooking is done by heating the food from the surface.

  Next, oven cooking will be described. Oven cooking is a heating method in which the food to be cooked is heated by applying hot air to the food to be cooked placed on the table 4 by the hot air unit 15 provided outside the heating chamber back 2b.

  The oven heating means for performing the oven cooking is constituted by a hot air unit 15, and the hot air unit 15 is provided with a blower means 16 such as a fan that is rotatably provided substantially in the center of the heating chamber back 2 b, and the air of the blower means 16. An electric heater 17 provided on the outflow side of the flow and a motor 18 connected to the blowing means 16 are configured.

  And the hot air which came out of the hole 21 near the electric heater 17 heats a to-be-cooked object, and the wind after heating a to-be-cooked object is again hot air through the hole 22 provided in the approximate center part of the heating chamber back 2b. It is taken into the unit 15.

  Next, steam cooking will be described. Steam cooking is a cooking method in which steam is given to the food to be cooked placed on the table 4 and the food to be cooked is heated.

  As shown in FIG. 1, the steam heating means for performing steam cooking includes a detachable tank 50 under the heating chamber 2, and the water in the tank 50 is sucked up by the water supply means 19 through the pipe 51 and supplied through the pipe 52. Steam generation means 20 for heating the generated water to generate steam is provided. The steam generating means 20 is provided outside the heating chamber side surface 2 c and ejects a jet port 7 a to the heating chamber 2.

  The water supply means 19 and the steam generation means 20 are controlled by the control means 9 to supply a desired amount of steam to the heating chamber 2.

  The microcomputer 210 provided in the control means 9 includes a magnetron 7 as a range heating means, an inverter board 8, an electric heater 17 and a motor 18 as an oven heating means, an electric heater 14 as a grill heating means, and a steam generating means as a steam heating means. 20. Control the water supply means 19.

  Next, the operation display unit 6 provided at the lower part of the door 3 as shown in the front view of the main body of FIG. 1 will be described.

  The operation display unit 6 is provided on the lower side of the window 23 of the door 3 and on the lower side of the glass 23a covering the window 23, and sets the heating method of a plurality of heating means.

  The operation display unit 6 includes a display unit 70 with a touch panel (details will be described later), and is provided with four touch switch operation keys 60 arranged in two rows in two rows adjacent to each other.

  Further, a “warm / start” key 6b and a “Takeshiki” key 6c on the lower side are arranged side by side. In consideration of convenience, the “warm / start” key 6b is provided larger than the “Takeshike” key 6c. The “warm / start” key 6b and the “trimming” key 6c may be touch switches or mechanical switches provided with an opening in the glass 23a.

  The “warm / start” key 6b is operated by a key for measuring the weight of the food to be cooked by the weight sensor 5, automatically determining the heating time according to the weight, and heating it by the range heating means, and a display unit 70 with a touch panel described later. It also serves as a start key to be pressed when cooking is started according to the setting. The “Takeshiki” key 6c is operated to stop the heating in progress, shift to the standby state, and take out the food to be cooked.

  Next, the operation key group 60 will be described with reference to FIG. The operation key group 60 is composed of four operation keys arranged in two rows in two rows adjacent to the right of the display unit 70 with a touch panel. The upper row includes a “return” key 63 and a “note” key 64 from the left, and the lower row includes a “house light” key 62 and an “easy range” key 61 from the left. Each key is input to the microcomputer 210.

  The “return” key 63 is used to return to the previous layer when correcting an erroneous setting during the operation of the display unit 70 with a touch panel. The “Tell me” key 64 is used to notify the voice guide. The “inside light” key 62 is for turning on the light in the inside when checking the state of the object to be cooked.

  The “simple range” key 61 is used for simple setting. As the selection contents, the above-described four types of heating means for cooking can be used alone or in combination. In this embodiment, the range heating means is simple. The contents set in the setting will be described below.

  When the “simple range” key 61 is input, manual range heating is selected, and two specific heating power selection keys with high versatility displayed on the display unit 70 with a touch panel are selected, and the heating time setting is less than 10 minutes. It introduces to the easy operation of the range heating operation limited to.

  The display unit 70 with a touch panel will be described with reference to FIGS. The display unit 70 with a touch panel has a touch panel 70a that can be determined as an input by capturing a change in capacitance at the pressed position on the surface of the LCD display unit 70b that displays in black and white with a finger of the user. The touch panel 70a detects and inputs to the microcomputer 210 an operation of pressing a portion for displaying a key in the display output from the microcomputer 210 to the LCD display unit 70b.

  Therefore, since the selection key 79a and the character 79b are displayed in black and white, the structure is very inexpensive and easy to see even at a low resolution, and is very inexpensive.

  FIG. 6 shows an initial screen 70c displayed on the LCD display unit 70b in a standby state in which the main body 1 is energized. On the left end, letters 79b of an automatic display 71 indicating automatic cooking and a manual display 72 indicating manual heating are arranged below. To the right of the auto display 71, six keys for auto cooking are displayed in two rows and three columns in the horizontal direction, and on the right of the manual display 72, three keys for manual cooking are displayed in three rows. Then, nine selection keys 79a and three characters 79b arranged in three vertical rows are displayed on the substantially entire screen of the LCD display section 70b, and an initial screen 70c is displayed.

  From the left in the upper stage, the automatic cooking is a range warming means 79 (shown as “warming” in FIG. 6), a dish collection number search means 80 (shown as “from dish collection number” in FIG. 6), and a history search means 81 (see FIG. 6). 6, “Recently used menu”), from the left in the lower row, range decompression / preparation means 76 (shown as “decompressed preparation” in FIG. 6), cooking category search means 77 (“from cooking category” in FIG. 6). And an input key composed of material search means 78 (shown as “from material” in FIG. 6). By pressing each key, the display shifts to the next operation display, and you can select the name of the desired auto-cooking dish by operating several times. In order to start, the process proceeds to an individual screen (to be described later) in which the “warm / start” key 6b is valid, and the “warm / start” key 6b is input to perform cooking.

  The initial screen 70c of the black-and-white LCD display unit 70b is designed so that it can be easily noticed and operated by placing the means 79 in the upper corner because the range of use is high, which is used to warm rice, miso soup and side dishes. And since the history search means 81 which displays the menu which cooked in new order is arrange | positioned in the other corner of an upper stage, it considered so that a user could select quickly when repeating the same cooking. Further, in order to collect the automatic cooking selection keys 79a that can be searched and introduced from a plurality of methods into one menu around the history search means 81, consideration is given to easy operation.

  On the other hand, manual cooking includes a range setting means 73, a steam / oven / grill / fermentation setting means 74, and a care / setting means 75 from the left. By pressing each key, the display shifts to the display of the next operation, and settings such as desired heating power, heating time, and finish adjustment by manual heating can be made, and the hierarchy is executed deeply. In addition, manual cooking was collected at the bottom to make it easy to operate.

First, auto cooking will be described for each of the selection keys 79a.
The range warming means 79 warms the cooked food, and as described above, it can warm and eat "rice", "miso soup", "side dish" and "milk". . This expresses the basic function of the microwave oven with an oven function as a good function of the microwave oven, and does not confuse the user with the word “warm” as the simplest wording.

  The dish collection number search means 80 allows the user to cooperate with the number in the dish book and the dish for the person who chooses the dish while looking at the dish book attached as an accessory when the cooking device is purchased. By inputting the number, a dish to be prepared can be set. The simplest wording is indicated by the letters “From the collection number”.

  The history search means 81 is for displaying a menu of cooked items in a new order, taking advantage of the memory function for those who often make the same dishes. It encourages users to try various dishes and enhances their specialty dishes, and the most easily understood word is "Recently used menu".

  The range thawing / preparing means 76 is designed to be able to thaw meat and fish, boil spinach and boiled salmon. This is also a good function of heating in a microwave oven, as typified by the basic range function of a microwave oven with an oven function. Anyone can easily display the preparation function for a person who cooks and defrosts or cooks Provides easy-to-use and easy-to-understand wording with the word “prepared under decompression”.

  The cooking category search means 77 provides not only the name of the dish, but also the dish that you want to make, not just the name of the dish, but what kind of dish you want to make from grilled food, steamed steamed food, fried food, boiled food / soup And connect with interest in cooking. Life can be enriched by changing daily eating habits. The simplest wording is indicated by the characters “from cooking category”.

  The material search means 78 is for those who choose from the materials they have, providing a cooking name when the user considers the menu from the materials in the refrigerator or food storage, improving usability and being strongly interested in cooking Help save time, consider menus. The simplest wording is indicated by the letters “from material”.

  Next, with regard to manual cooking, a range setting means 73 that is frequently used is provided independently so that it can be understood at a glance for those who want to cook manually using a range function manually. Shown as “range” as an easy-to-understand language.

  The steam / oven / grill / fermentation setting means 7 collects other functions excluding the range setting means 73, which is frequently used in manual cooking, for those who cook using the steam / oven / grill / fermentation function. The word “Steam / Oven / Grill / Fermentation” is the simplest wording.

  The care / setting means 75 expresses the dirt after cooking in an easy-to-understand place so that it is easy to clean for those who want to clean and set up the equipment. The word “care / setting” is the simplest wording.

  As described above, by viewing the initial screen 70c of the display unit 70 with a touch panel, the display content of the initial screen 70c is determined so that anyone can enter the operation intuitively.

  FIG. 7 shows that the number of operation procedures for arriving at one dish name “baked gyoza” from a plurality of keys for automatic cooking on the initial screen 70 c is different.

  In addition, it was possible to search for and introduce auto cooking from a plurality of methods, and to make the setting operation of auto cooking simple and easy to understand.

Next, the operation of the circuit will be described with reference to FIG.
For example, when manual oven heating is selected from the operation display unit 6 and heating is performed, the control unit 9 detects the temperature of the heating chamber 2 by the temperature sensor A40, and the temperature of the heating chamber 2 is heated to the set temperature. Then, electric power is supplied to the electric heater 17 and the motor 18 in the hot air unit 15 so that the heating chamber 2 is maintained at the set temperature. The air in the heating chamber 2 is heated by the electric heater 17 while circulating through the hot air unit 15 and the heating chamber 2 by the motor 18.

  In proportion to the increase in the temperature of the heating chamber 2, the temperature of the glass 23 a covering the window portion 23 also increases due to the heat conduction from the door 3 and the radiant heat from the heating chamber 2.

  Usually, the control means 9 detects the temperature of the heating chamber 2 by the temperature sensor A40, and controls the electric power of the electric heater 17 in the hot air unit 15 so as to maintain the temperature of the heating chamber 2 at the set temperature. Therefore, the temperature rise of the glass 23a does not rise above a specific temperature.

  However, when a failure that the temperature sensor A40 detects at a temperature lower than the actual temperature in the heating chamber 2 or a failure that is controlled as a temperature lower than the temperature that the temperature sensor A40 detects occurs, the temperature of the heating chamber 2 is set. The glass 23a may be heated higher than the temperature, and the temperature of the glass 23a may increase in the same manner, and it is conceivable that the temperature rises to the glass 23a that covers the operation display unit 6.

  In such a case, when the temperature of the glass 23a is detected to be higher than a specific temperature by the temperature sensor B100, or when a temperature higher than a specific temperature is detected with respect to the set temperature, the heating chamber 2 is displayed on the LCD display unit 70b. Since the temperature of the glass 23a is displayed in an abnormal state and the temperature of the glass 23a is high, the heating is stopped to prevent the cooking from failing or the temperature of the glass 23a is high. A warning or caution is displayed so as not to touch the glass 23a.

  For this reason, heating is stopped even when the “removal” key 6 c of the operation display unit 6 provided on the lower side of the glass 23 a covering the window 23 of the door 3 is not operated.

  According to the embodiment described above, when the temperature of the glass rises more than expected, the user can be warned that the door is hot and can be prevented from touching the glass of the door.

DESCRIPTION OF SYMBOLS 1 Main body 2 Heating chamber 3 Door 6 Operation display part 9 Control means 23a Glass 40 Temperature sensor A
70 Display Unit 100 with Touch Panel Temperature Sensor B

Claims (1)

A heating chamber for storing an object to be heated in the main body;
Heating means for heating the object to be heated;
An operation display unit for setting the heating method of the heating means;
A door that covers the front of the heating chamber and has glass;
Control means for controlling the heating means according to the heating condition input from the operation display unit,
The door is provided with a temperature sensor for detecting the temperature of the glass,
The control means includes
When the temperature detected by the temperature sensor is higher than a specific temperature with respect to the heating condition set in the operation display unit, a warning is displayed on the operation display unit.