JP6012488B2 - Cooker - Google Patents

Description

  The present invention relates to a cooking device for making bread.

  In Patent Document 1, in order to prevent a setting error by displaying a setting error of a pan case or forgetting to put a material or a setting error of a kneading blade to a user, the kneading blade driven by the motor and the rotation speed of the motor are set. A rotation speed measuring means for measuring, a pan case check display means for notifying a setting error of a pan case, forgetting to put in a material or a setting mistake of a kneading blade, and a control device for operating the pan case check display means in accordance with the rotation speed. An automatic bread maker provided is disclosed.

  In this automatic bread maker, based on the number of motor revolutions measured by the Hall IC, it notifies the user of forgetting to put in the material or sets mistakes such as the lock pan case of the kneading blade, and temporarily stops the cooking process to correct the set mistake. The cooking process is continued later.

JP-A-9-454

  The automatic bread maker disclosed in Patent Document 1 detects a set error based on the number of rotations of the motor, and thus has a problem that a set error cannot be detected when the motor does not rotate.

The heating cooker of the present invention solves the above problem, a heating chamber for storing the object to be heated, heating means for heating the object to be heated, and a bread container detachably provided in the heating chamber; A stirring motor that is provided outside the heating chamber and applies a driving force to the stirring blades in the pan container; current detection means that detects a current value of the stirring motor; a display unit that displays information; and a mode Each time the specified current value and specified time of the agitating motor are stored, and the time when the energized current value detected by the current detecting means is larger than the specified current value of the current mode continues for longer than the specified time And a control means for displaying a warning on the display section and stopping the agitation motor, wherein the control means is longer than a specified time 1t when the time when the specified current value 10k in the lock mode is greater than the specified time 1t. Lock After determining that it is not the lock, and after determining that there is no load when the time that is greater than the specified current value 1k in the no-load mode is longer than the specified time 7t, and after determining that the load is not no load Determining that water has been forgotten if the time that is greater than the specified current value corresponding to the selected mode is longer than the specified time corresponding to the selected mode, and the specified current value 10k> selection The specified current value corresponding to the selected mode> the specified current value 1k, and the specified time 1t <the specified time corresponding to the selected mode <the specified time 7t .

  According to the present invention, it is possible to detect a material defect at an early stage of cooking, and to improve the convenience for the user.

The front view of the main body of the heating cooker of one Example. The perspective view which looked at the state which removed the outer frame from the main body of the heating cooker from the front side. The side view of a microwave oven. The perspective view which installed the bread container of the heating cooker in the heating chamber. FIG. 3 is a cross-sectional view of the main part of FIG. The flowchart explaining during cooking of the heating cooker of one Example. It is a block diagram which shows the schematic control circuit structure of the heating cooker. The regulation value table which shows the regulation current value according to mode at the time of the stirring motor operation of the cooking device, and regulation time.

  Hereinafter, with reference to FIGS. 1-7, one Example of the heating cooker of this invention is described.

  1-4, the main body 1 of the heating cooker puts the cooking object to be heated in the heating chamber 28, and cooks the cooking object using the heat of the microwave, the heater, and the steam.

  The door 2 opens and closes in order to put the food to be taken in and out of the heating chamber 28, and when the door 2 is closed, the heating chamber 28 is hermetically sealed to leak microwaves used for heating the food to be cooked. It is possible to prevent heat, contain heat, and heat efficiently.

  The handle 9 is attached to the door 2 and facilitates opening and closing of the door 2.

  The glass window 2b is attached to the door 2 so that the state of the food being cooked can be confirmed, and uses glass that can withstand high temperatures due to heat generated by a heater or the like.

  Next, the operation display unit 6 provided on the lower side of the door 3 will be described. The operation display unit 6 selects a cooking method for manual cooking displayed on the LCD display 604, a cooking output setting, a cooking temperature setting, a cooking time setting, a cooking finish setting, a setting for whether or not to preheat the oven cooking, and the like. Pressing the key 602 starts the operation. The LCD display 604 displays usage amounts of ingredients and seasonings necessary for cooking, and the user prepares for cooking according to the displayed contents. Note that the auto cooking menu is for cooking automatically by the detection input of the weight detection means 25 and the temperature sensor 85 and the control of the microcomputer 151, and it is not necessary to set the cooking output, heating time, temperature, amount and the like. is there.

The operation display unit 6 includes an operation panel 6b on the lower front side of the door 2 and an LED provided on the lower front side of the door 2.
The display unit 24 is configured.

  On the operation panel 6b, a start key 602 for inputting a menu decision or cooking start, a cancel key 601 for inputting setting cancellation or cooking stop arranged near the start key, and a selection key 60 for making various selections. , Manual cooking method, auto cooking menu, cooking output setting, cooking temperature setting, cooking time setting, cooking finish setting, usage amount of ingredients and seasonings necessary for cooking, etc., whether to preheat oven cooking, etc. An LCD display 604 for displaying information such as the status and operation of the device is provided. The auto-cooking menu is for cooking automatically by the detection input of the weight detection means 25 and the temperature sensor 85 and the control of the microcomputer 151 (FIG. 6), and it is not necessary to set the cooking output, heating time, temperature, amount, etc. Is.

  The operation display unit 6 includes a range heating unit 77 (FIG. 6) for heating the object to be cooked by microwaves, a grill heating unit 12 for heating the object to be cooked by a heater provided on the upper surface of the heating chamber 28, From the steam generating means 43 for heating the cooked food, the oven heating means for heating the heating chamber 28 with hot air of the hot air unit 11 by the hot air heaters 14a, 14b provided above and below the inner wall surface 28b of the heating chamber, and bread dough making to be described later The bread that is automatically baked is selected, cooking conditions such as the heating time and a menu of multiple types of bread are input, and the input contents and the cooking progress are displayed.

  Depending on the setting, various types of cooking are performed by performing four types of cooking methods, such as microwave cooking, grill cooking, oven cooking, steam / superheated steam cooking, alone or in combination. Furthermore, a bread container 50 for making bread, which will be described later, is installed in the heating chamber 28, and cooking such as baking and baking from bread is performed. The cooking method is not particularly limited to these.

  The water tank 42 is a container for storing water necessary for producing water vapor. The water tank 42 is provided on the lower front side of the main body 1 and can be attached and detached from the front surface of the main body 1 to facilitate water supply and drainage. It can be done.

  The machine room 20 is provided in a space between the heating chamber bottom surface 28a and the bottom plate 21 of the main body 1, and a magnetron 33 for heating food on the bottom plate 21 and a waveguide connected to the magnetron 33 (see FIG. Not shown), the control means 23, the inverter board 22 for controlling the output of the microwave oscillated from the magnetron 33, various components described later, the fan device 15 for cooling these various components, and the like are attached. The inverter board 22 is controlled by the control means 23 and applies a desired amount of microwaves to the object to be cooked to perform microwave heating.

  The heating chamber bottom surface 28a has a substantially central recess recessed to form a space, and the rotating antenna 26 is installed in the space. In order to prevent the microwave from concentrating on a part, the microcomputer 151 controls an antenna motor (not shown) to rotate the rotating antenna 26 to perform a desired stirring operation. The microwave radiated from the magnetron 33 flows into the waveguide and the lower surface of the rotating antenna 26, is diffused by the rotating antenna 26, and is radiated into the heating chamber 28.

  The hot air unit 11 is attached to the rear part of the heating chamber 28. The hot air unit 11 is provided with a hot air case on the rear side of the heating chamber inner wall surface 28b, and the hot air fan 32 and its outer periphery are provided between the heating chamber inner wall surface 28b and the hot air case. Hot air heaters 14a and 14b are provided so as to be located on the side. The hot air motor 13 of the hot air fan 32 is attached to the rear side of the hot air case, the motor shaft is connected through a hole provided in the hot air case, and the blades of the hot air fan 32 are rotated to circulate the air.

  And the hot air unit 11 is connected through the hot air intake hole 31 and the hot air blowing hole 30 which are air passages provided in the heating chamber inner wall surface 28b, and the hot air fan 32 in the hot air case 11a is rotated by the hot air motor 13, Air in the heating chamber 28 and the hot air unit 11 is circulated, and the air circulated in the hot air heaters 14a and 14b is heated to become hot air 63. In the baking process described later, the hot air 63 is circulated and baked in the heating chamber 28 in the baking process.

  A grill heating means 12 made of a heater is attached outside the upper surface of the heating chamber. The grill heating means 12 wraps a heater wire around a mica plate to form a flat surface, presses and fixes the mica plate to the outside of the upper surface of the heating chamber, and heats the upper surface of the heating chamber to bake the food in the heating chamber 28 by radiant heat. Is. This is effective for cooking the food to be cooked relatively easily at a constant temperature. Moreover, in the bread making described later, the temperature of the heating chamber 28 is increased in the fermentation process.

  The heating chamber bottom surface 28a is provided with a plurality of weight detection means 25, for example, a right weight sensor 25a, a left weight sensor 25b on the front left and right, and a back weight sensor 25c on the rear center, and a square shape on the right weight sensor 25a. A table plate 24 to be described later is placed.

  The weight information of the food to be cooked placed on the table plate 24 is detected by the support member 75 of the weight detection means 25, and this information is sent to the microcomputer 151 (FIG. 6) as the control means.

  A turntable-less table plate 24 on which an object to be cooked is placed is placed on the bottom of the heating chamber 28.

  Further, the heating chamber 28 is provided with a temperature sensor 85 which is a temperature detecting means for detecting the temperature of the heating chamber 28, and detects the temperature of the heating chamber 28 in a fermentation or baking process when making bread.

  The steam unit 43 a (FIG. 6) includes a water vapor generating means 43 and a water supply means 87.

  The water vapor generating means 43 is attached to the outer surface of the left side surface 28c of the heating chamber, and the steam outlet for ejecting water vapor faces the heating chamber 28. Steam cooking is a cooking method that covers the object to be cooked with a film of water and heats the object to be cooked 1, steaming cooking, suppressing the combination of oxygen and ingredients in the air (oxidation of the object to be cooked), It is characterized by cooking that suppresses moisture loss and maintains the flavor of the food.

  The water vapor generating means 43 is made by casting aluminum, and a sheathed heater as a boiler heating means is embedded so as to be integrated at the time of casting. The power consumption of the heater is as large as around 600 W, and the steam generating means 43 can heat the water to a temperature at which it can be boiled in a short time.

  The water supply to the water vapor generation means 43 is supplied from the water tank 42 to the water supply means 87 through the pipe by driving the pump means 87, supplied to the water vapor generation means 43 through the pipe, and heated by the water vapor generation means 43. Then, it boils and becomes water vapor and is ejected into the heating chamber 28.

  Next, a structure related to bread making performed by setting the bread container 50 in the heating chamber 28 will be described. FIG. 3 is a perspective view in which the bread container 50 is installed in the heating chamber 28, and FIG.

  The bread container 50 is a container in which ingredients are mixed according to a menu and stirred to form a bread dough 57. The bread container 50 has a rotatable stirring blade 51 on the inner bottom surface. A handle 90 is provided on the front side of the bread container 50 and is attached and detached from the front of the heating chamber 28 in which the door 2 is opened. A lock lever 91 that rotates back and forth is provided at the lower left portion of the bread container 50 and is fixed to a claw provided in the heating chamber 28. The bread container 50 is provided with a drive connecting portion 52 at the bottom thereof, and is coupled to the stirring blade 51 on the bottom surface of the bread container 50 and the stirring drive shaft 53 provided from the machine chamber 20 into the heating chamber 28.

  An ingredient container 94 is placed on top of the bread container 50. In this ingredient container 94, ingredients necessary for making bread are added during cooking. For example, ingredients such as dry yeast (powder) and raisins are placed, and the bottom is opened by the control of the control means 23. Then, ingredients such as dry yeast (powder) and raisins are dropped separately into the bread container 50.

  The mounting guide 56 opens the door 2, removes the table plate 24 installed on the heating chamber bottom surface 12a, and fixes it to the right side of the rotating antenna 26 provided on the heating chamber bottom surface 28a. With the ingredient container 94 placed, the bread container 50 is guided by the mounting guide 56 and installed at a predetermined position of the mounting guide 56, and the lock lever 91 is rotated and fixed. The bread dough 57 is firmly fixed so as not to shake when the bread dough 57 is stirred by the stirring blade 51 provided at the inner bottom of the bread container 50.

  The agitation motor 54 is provided in the machine room 20 and rotates the agitation drive shaft 53 via the speed reduction means 55. The speed reduction means 55 includes a small pulley 55a, a belt 55c, and a large pulley 55b. For example, the small pulley 55a provided on the shaft of the stirring motor 54 is rotated, the large pulley 55b is rotated by the belt 55c, and the stirring drive shaft 53 provided on the central shaft of the large pulley 55b is rotated.

  In addition, on the right side of the machine room 20 and the right side of the heating chamber 28 of the main body 1, there are provided material loading drive means by a solenoid or the like that is loaded by the material container 94 described above.

  The bread making process will be described. When the temperature detected by the temperature detecting means 85 is 20 ° C., the temperature detected immediately before making bread is about 2 hours, and the bread making process takes about 2 hours. From cooking to fermentation and baking.

  The bread making process is based on commonly used bread making procedures, and all the bread making processes are a kneading process, a dry yeast injection, a kneading process, a kneading process, a fermentation process, and a baking process.

  In the kneading process, in order to make bread dough, the stirring motor 54 is operated to rotate or stop the stirring blade 51 to knead the ingredients.

  In a fermentation process, it is made to ferment with the yeast microbe input at the time of a kneading process, and is a primary fermentation process, degassing, and a secondary fermentation process. In the primary fermentation process and the secondary fermentation process, the grill heating unit 12 is operated by the temperature input of the temperature detection unit 85 to control the temperature of the heating chamber 28. Finally, it is a baking process in which the hot air unit 11 is operated by the temperature input of the temperature detecting means 85 to control the temperature of the heating chamber 28 and the hot air 63 is baked.

  Cooking is started by selecting a bread to be cooked from among many types of bread to be made with the operation display unit 6 and inputting a start key 602.

  Next, the outline of control of the heating cooker of the present embodiment will be described with reference to FIGS.

  FIG. 6 is a block diagram showing a schematic control circuit configuration. The control means 23 is composed of a circuit having a microcomputer 151, and a start key 602 for starting or stopping the operation, a cancel key 601, a temperature sensor 85 for detecting the temperature in the heating chamber 28, and an agitation motor at input terminals of the microcomputer 151. A current detection means 605 for detecting a current during operation of the stirring motor 54 of the drive means 530 is connected. Further, the magnetron 33, the electric heaters 12 and 14, the steam generating means 43, and the stirring motor driving means 530 are connected to the output terminal of the microcomputer 151 via the inverter power supply 22 as a load.

  FIG. 7 is a prescribed value table stored in advance in the microcomputer 151, and shows a prescribed current value and a prescribed time of the stirring motor 54 for each mode, as will be described later. In the table, k and t are both positive coefficients, the specified current value has a magnitude relationship of 0 <1k <3k <... <10 k, and the specified time is 8t> 7t>. It has a magnitude relationship of> 1t. In addition, what is necessary is just to set an appropriate value according to the characteristics, such as the stirring blade 51 and the stirring motor 54, for the specific value of the specified current value and the specified time in each mode, and is not limited to the example shown in FIG. is not.

  Next, a method of using the specified value table in FIG. 7 will be described. For example, the specified current value corresponding to the “stop” mode in which the stirring motor 54 is stopped is “0”, and the specified time is “8 t”. In the “stop” mode, the energizing current value of the agitating motor 54 detected by the current detecting means 605 is 0 (zero), but the energizing current value greater than the specified current value 0 has continued for longer than the specified time 8t. When detected, the microcomputer 151 determines that an abnormality has occurred in the control of the stirring motor 54.

  Similarly, the “no-load” mode in which the stirring motor 54 is rotated in a state where the dough is forgotten to be put in the bread container 50 (or the state where the stirring blade 51 is forgotten to be mounted), or the control means 23 is configured to rotate the stirring motor 54 Even in the “lock” mode in which the stirring motor 54 does not rotate for some reason despite being controlled to be controlled, when it is detected that an energization current value greater than the specified current value corresponding to each mode has continued for longer than the specified time In addition, the microcomputer 151 can determine “no load” or “lock”.

  Next, the operation | movement flowchart of bakery cooking is demonstrated using FIG. As shown in the figure, when bread making is selected on the operation display unit 6 and the start key 602 is operated (S1), it is determined whether the bakery function is being cooked (S2). If the bakery function is being cooked, the stirring motor 54 is operated (S3), and the energization current value is detected (S4).

  S5 is a step of determining whether or not there is “lock”. Specifically, the time during which the energization current value of the agitating motor 54 is larger than the specified current value 10k in the “lock” mode is longer than the specified time 1t. In this case, it is determined as “lock”. When it is determined as “locked”, cooking is stopped, an error message indicating “locked” is displayed on the operation display unit 6 (S6), and cooking is terminated (S7).

  If it is determined that it is not “lock”, it is detected in the next step S8 that a material such as dough has been left out. Specifically, it is determined as “no load” when the energization current value of the agitating motor 54 is longer than the specified time 7t for a time longer than the specified current value 1k in the “no load” mode. If it is determined as “no load”, cooking is stopped, an error display (S9) is displayed on the operation display unit 6 as “no load”, and cooking ends (S7).

  If it is determined that the load is not “no load”, it is detected in the next step S10 that forgetting to add water. Specifically, the time during which the energization current value of the stirring motor 54 is greater than the specified current value corresponding to the menu (mode) selected from “Omochi”, “Udon”, “Bread crumb”, and “Rice flour” is longer than the specified time. In case, it is judged that water has been forgotten. The reason why the specified current value and the specified time are varied according to the menu is that the magnitude of the load applied to the stirring motor 54 differs depending on the material. If it is determined that the user has forgotten to add water, cooking is stopped, an error message “S11 forgotten to add water” is displayed on the operation display unit 6 (S11), and cooking is terminated (S7).

  If it is determined that there is no “forget to add water”, it is determined as normal and cooking is continued (S12), and the bread-making bakery function cooking process is terminated normally (S7).

  As mentioned above, according to the present Example, a malfunction can be detected in the early stage in the process of bread-making cooking. In addition, the amount of electricity used to detect a material failure is small, and waste can be eliminated, improving usability. Further, even when the stirring motor does not rotate, it is possible to detect a problem.

6 Operation Display Unit 23 Control Unit 28 Heating Chamber 50 Bread Container 51 Stirring Blade 54 Stirring Motor 54
151 Microcomputer 605 Current detection means

Claims (1)

A heating chamber for storing an object to be heated;
Heating means for heating the object to be heated;
A bread container detachably provided in the heating chamber;
A stirring motor that is provided outside the heating chamber and applies a driving force to the stirring blades in the bread container;
Current detection means for detecting an energization current value of the stirring motor;
A display for displaying information;
The specified current value and specified time of the agitating motor are stored for each mode, and the time when the energized current value detected by the current detecting means is larger than the specified current value of the current mode has continued for longer than the specified time. And a control means for displaying a warning on the display unit and stopping the agitation motor,
The control means includes
A step of determining a lock when the time that is greater than the specified current value 10k in the lock mode is longer than the specified time 1t;
Determining that there is no load when it is longer than the specified time 7t after determining that the lock is not applied and the time when the specified current value 1k in the no-load mode is greater than the specified time 7t;
Determining that the water has been forgotten if the time that is greater than the specified current value corresponding to the selected mode is longer than the specified time corresponding to the selected mode. And
The specified current value 10k> the specified current value corresponding to the selected mode> the specified current value 1k, and
Specified time 1t <specified time corresponding to the selected mode <specified time 7t
Cooker, characterized in der Rukoto.