JP5651574B2 - Cooker - Google Patents

Description

  The present invention relates to a cooking device including a magnetron that generates microwaves as a heating means for heating food.

  As a conventional high-frequency cooking device, there is a device that adds a function of kneading, stirring, or chopping food by using a mechanism that rotates a turntable.

  For example, in the high-frequency cooking device of Patent Document 1, a joint mechanism coaxial with this is mounted on the drive shaft of the turntable drive mechanism provided in the approximate center of the bottom of the heating chamber, and the protruding shaft of this joint mechanism is attached to the attached pan. The food in the attached pan can be kneaded by passing through the bottom of the (container for food) and rotating the blade member attached thereto.

  As another conventional high-frequency heating device, there is one that can cook a plurality of foods at the same time by appropriately controlling the microwave distribution in the heating chamber according to the number and position of the foods.

  For example, in the high-frequency cooking device of Patent Document 2, the temperature during heating is provided by including weight detection means, a rotating antenna that controls the radiation direction of microwave energy, and antenna position detection means that detects the position of the rotating antenna. A plurality of foods having different tastes can be heated at the same time, and finished at a temperature suitable for each taste by one cooking.

Japanese Patent Laid-Open No. 10-211098 JP 2009-257634 A

  In the configuration of Patent Document 1, since the rotation of the drive shaft of the turntable drive mechanism provided in the approximate center of the heating chamber is used as the power of the blade member, the turntable and the attached pan cannot be used at the same time. When it is desired to perform microwave heating cooking using the kneading and kneading cooking using the attached pan, it is necessary to perform these in order, which is disadvantageous in terms of time and energy required for cooking.

  Moreover, in the structure of patent document 1, the electric power feeding port which supplies a microwave to a heating chamber is installed in the wall surface of a heating chamber, and the strength of the microwave standing wave in a heating chamber changes greatly with places. For this reason, when cooking is performed using the attached pan and food is placed on the bottom of the heating chamber and cooking is attempted, uneven energy is generated in each food, resulting in heating unevenness in each food. Will occur. That is, in the structure having the power supply port on the side surface of the heating chamber, it is impossible to control the heating of food that is not placed on the turntable, and a plurality of foods cannot be heated simultaneously without using the turntable. Similarly, it is difficult to adjust the amount of microwave absorbed according to individual foods, so when heating multiple foods, it is difficult to finish the foods at a temperature suitable for each taste, Multiple foods with different initial temperatures and quantities cannot be heated to finish simultaneously.

  The reason why the power supply port is not provided below the heating chamber in the turntable type cooker is that if a magnetron that generates microwaves or a waveguide that transmits microwaves is provided on the bottom of the heating chamber, the drive for stirring food Since the shaft passes through the waveguide and the waveguide through which the microwave passes and the heating chamber communicate with each other via the drive shaft, when food waste or steam flows into the waveguide, This is because abnormal heating is likely to occur. In addition, since the machine room and the heating chamber are always in communication via the penetrating portion of the drive shaft, steam generated in the heating chamber may leak into the machine chamber and cause condensation, resulting in component failure. This is because heating cooking for supplying a large amount of steam indoors becomes difficult. Furthermore, the drive shaft portion of the turntable is always exposed to the heating chamber, and food waste generated during cooking is clogged, which may cause sparks due to the clogged food residue.

  Moreover, since patent document 2 is not provided with the mechanism which stirs food, it cannot heat several foods simultaneously, stirring food.

  The present invention solves the above-mentioned problems and can simultaneously heat a plurality of foods by performing cooking with stirring and normal microwave cooking at the same time, and avoids the disadvantages caused by the stirring mechanism. An easy-to-use cooking device is provided.

The heating cooker of the present invention is made in order to solve the above-described problems, and includes a heating chamber that stores food, a cooking container that is detachably attached to the bottom surface of the heating chamber, and a lower portion of the heating chamber. An agitation motor provided to rotate the agitation blade inside the cooking vessel, an agitation drive shaft for transmitting the power of the agitation motor to the cooking vessel, and provided below the heating chamber to supply microwaves A magnetron, a rotating antenna that is provided below the heating chamber and that irradiates the microwave, and an antenna motor that is provided below the heating chamber and rotationally drives the rotating antenna, the stirring drive shaft, the rotation axis of the antenna motor is disposed such that the bottom surface and substantially perpendicular of the heating chamber, the rotation axis of the antenna motor is provided substantially at the center of the bottom surface of the heating chamber, the stirring The axis of rotation of over motor and being provided only in the vicinity of one wall surface of the bottom surface of the heating chamber.

  According to the present invention, the stirring cooking mechanism provided below the heating chamber does not affect the microwave cooking mechanism provided below the heating chamber. Moreover, even if it is a case where the microwave distribution in a heating chamber is controlled by a rotating antenna and stirring cooking is performed simultaneously, a plurality of foods can be cooked simultaneously and uniformly.

It is the disassembled perspective view which looked at the cooking-by-heating machine which attached the cooking container of Example 1 from the front upper side. It is front sectional drawing in the case of heat-cooking the foodstuff in a cooking container with the heating cooker of Example 1. FIG. It is front sectional drawing in case a cooking container is not attached with the heating cooker of Example 1. FIG. It is an expanded sectional view of the connection part of the cooking container of Example 1. It is the disassembled perspective view which looked at the cooking-by-heating machine of Example 2 from the front upper side. It is front sectional drawing in the case of cooking the food in a cooking container with the heating cooker of Example 2. FIG. It is front sectional drawing of the heating cooker of Example 2. FIG. It is the disassembled perspective view which looked at the heating cooker of Example 3 from the front upper side. It is front sectional drawing in the case of heat-cooking the foodstuff in a cooking container with the heating cooker of Example 3. FIG. It is front sectional drawing of the heating cooker of Example 3. FIG.

  Hereinafter, embodiments of the present invention will be described by taking a cooking device having a microwave heating function by a magnetron and an oven heating function by a heater as an example. Note that the cooking device to which the present invention is applied does not have to have an oven heating function as long as it has a microwave heating function, and may have a superheated steam heating function.

  The cooking-by-heating machine of Example 1 is demonstrated using FIGS. 1-4. FIG. 1 is an exploded perspective view of the cooking vessel 30 attached to the heating cooker according to the first embodiment and viewed from the upper front side. 2 is a cross-sectional view seen from the front when the cooking container 30 is attached to the cooking device of the first embodiment and the foods 6A and 6B are cooked, and FIG. 3 is a diagram illustrating the cooking container 30 removed from the cooking device of the first embodiment. FIG. 4 is an enlarged sectional view of the connecting portion of the cooking container 30 of the first embodiment.

  First, the structure of the main body 1 of the heating cooker will be described with reference to FIG. The main body 1 includes a heating chamber 3 whose front is open. An openable door 2 is provided at the opening of the heating chamber 3, and a machine room 4 is provided below the heating chamber 3. By providing the machine room 4 below the heating chamber 3, it is easy to increase the width of the heating chamber, that is, to increase the capacity of the heating chamber, compared to the case where the machine room is provided on the side of the heating chamber. Become. A magnetron 40 for generating microwaves is provided on the side of the machine room 4, and a rotating antenna 41 is provided in the approximate center. The microwave generated by the magnetron 40 and irradiated from the rotary antenna 41 passes through the partition plate 36 made of a low-loss dielectric material (such as mica) and is supplied to the heating chamber 3 to perform microwave heating. Realize. In addition, an upper heater 50 is provided above the heating chamber 3, and a hot air unit (not shown) for supplying high-temperature hot air and a hot air outlet 51 are provided on the back surface, and oven heating is realized by using these. To do. And the main body 1 is comprised by enclosing the heating chamber 3 and the machine room 4 with the cabinet 10. FIG. Furthermore, a cooking container 30 is detachably attached near the wall surface of the bottom surface of the heating chamber 3. The cooking container 30 is a container dedicated to the heating cooker of the present embodiment, and will be described using a metal container having high heat resistance and good thermal conductivity as an example. If the heat resistance is high, the cooking container 30 is made of glass or ceramic. May be.

  Next, the structure of the main body 1 will be described in detail with reference to FIG. As shown here, food 6A is placed in a cooking container 30 attached to the bottom surface of the heating chamber 3, and food 6B is placed on a plate placed on the bottom surface. In addition, although the temperature sensor 52 which observes the infrared rays from a foodstuff and detects the surface temperature of a foodstuff is provided in the upper part of the heating chamber 3, this shall be demonstrated later.

  First, a configuration for microwave heating the food 6B placed on a plate will be described. As shown in FIG. 2, a waveguide 42 is provided between the magnetron 40 and the rotating antenna 41, and the microwave generated by the magnetron 40 is transmitted through the waveguide 42 and supplied to the rotating antenna 41. . An antenna motor 43 is provided below the waveguide 42 and rotationally drives a rotating antenna 41 attached to an antenna rotating shaft 44 that penetrates the waveguide 42 substantially vertically. The rotating antenna 41 rotates in the antenna housing portion 45 below the partition plate 36 and irradiates the microwave supplied from the magnetron 40 via the waveguide 42 in an arbitrary direction, thereby allowing the micro wave in the heating chamber 3 to be irradiated. Wave distribution can be varied. Hereinafter, the magnetron 40, the rotating antenna 41, the waveguide 42, the antenna motor 43, the antenna rotating shaft 44, and the antenna housing portion 45 are collectively referred to as a power feeding portion 4A.

  Thus, by providing the partition plate 36 between the heating chamber 3 and the antenna housing portion 45, it is possible to prevent food waste and steam from entering the antenna housing portion 45 and the waveguide 42. In addition, the food waste indicates fine debris of the food 6 such as bread crumbs and rice crumbs, moisture and oil splashed from the food 6, spilled seasonings, and the like. These food wastes tend to concentrate abnormally because microwaves tend to concentrate, and may cause dirt such as mold and rust. However, in the cooking device of this embodiment, the food wastes are contained in the antenna housing 45 or the like. Since it does not enter, abnormal heating, mold, rust, etc. in the antenna housing 45 and the waveguide 42 can be suppressed.

  Next, the structure for kneading the food 6A in the cooking container 30 will be described. As shown in FIG. 2, a connecting rotating part 301 is rotatably attached to the bottom surface of the cooking container 30, and the food 6 </ b> A inside the cooking container 30 is stirred by a detachable stirring blade 31 that rotates together with the connecting rotating part 301. Can be kneaded. In addition, the connection rotation part 301 has a structure which can seal a liquid and does not leak even if a liquid is put into the cooking vessel 30 inside. On the opposite side of the machine room 4 to the magnetron 40, a stirring motor 35, a stirring drive shaft 33, and a transmission device 34 that transmits the power of the stirring motor 35 to the stirring drive shaft 33 are provided. In the vicinity of the wall surface, a stirring drive shaft 33 protrudes substantially vertically. When the upper end of the stirring drive shaft 33 is connected to the connecting rotation unit 301 of the cooking container 30, the stirring blade 31 can be rotationally driven by the power of the stirring motor 35.

  As is clear from FIG. 2, the stirring drive shaft 33 is disposed outside the power feeding section 4 </ b> A and does not penetrate the waveguide 42 or the antenna housing section 45. For this reason, the microwave does not leak from the vicinity of the stirring drive shaft 33, and abnormal heating or sparking does not occur due to the food residue falling in the vicinity of the stirring drive shaft 33. Further, the stirring drive shaft 33 does not hinder the rotation of the rotating antenna 41.

  Next, the structure which drives the stirring blade 31 in the cooking vessel 30 is demonstrated in detail using FIG. 3 and FIG. FIG. 3 is a cross-sectional view of the main body 1 when the cooking container 30 is removed. In the vicinity of the stirring drive shaft 33 on the bottom surface of the heating chamber 3, a rod-like connection protrusion 32 is installed substantially vertically. FIG. 4 is a cross-sectional view of the vicinity of the bottom surface of the cooking container 30 when the cooking container 30 is attached. The agitation blade 31 is connected to the upper surface connection part of the coupled rotating part 301, and the agitation drive shaft 33 is connected to the lower surface connection part. With this configuration, when the agitation drive shaft 33 is driven to rotate, the connecting rotation unit 301 and the agitation blade 31 rotate in conjunction with each other. Moreover, since the connection protrusion 32 of the bottom of the heating chamber 3 is penetrated through the connection hole 302 of the lower flange of the cooking container 30 and the cooking container 30 is fixed, the cooking container 30 is rotated by the force for rotating the connection rotation unit 301. There is no.

  Note that a cooking container detection sensor (not shown) is provided in the vicinity of the stirring drive shaft 33, and it can be detected that the cooking container 30 is fixed to the bottom surface of the heating chamber 3. As the cooking container detection sensor, an object other than the cooking container 30 such as a contact sensor such as a micro switch, a conductive sensor for detecting the conductivity of the cooking container 30 by an electric flow, or a Hall element is provided on the stirring drive shaft 33. Any sensor can be used as long as it does not react even if it is placed on the sensor and can determine whether or not the cooking container 30 is fixed. By identifying the presence or absence of the cooking container 30 using the cooking container detection sensor, dangerous operations such as driving the stirring drive shaft 33 when the cooking container 30 is not attached can be prevented, and the safety of the cooking device can be improved. Can be increased.

  Next, the characteristic structure of the heating cooker of a present Example is demonstrated.

  In the present embodiment, since the cooking container 30 is attached to the right side of the heating chamber 3, even after the cooking container 30 is attached, a space for placing another container is left on the left side of the heating chamber 3. Therefore, microwave heating of the food 6B can be performed on the left side of the heating chamber 3 while kneading or stirring the food 6A on the right side of the heating chamber 3. Thereby, compared with the case where food 6A, 6B is cooked in order, the time and energy which cooking requires can be reduced. Even when a plurality of foods are placed on the left side of the heating chamber 3, a plurality of foods placed on the left side of the heating chamber 3 can be supplied by supplying microwaves while rotating the rotating antenna 41 at a substantially constant speed. It is possible to suppress the occurrence of heating unevenness in food.

  In addition, by appropriately controlling the rotation of the rotating antenna 41, desired energy can be supplied to each of the foods 6A and 6B, and a finish according to the menu of the foods 6A and 6B can be realized. For example, when the food 6A is a food that is harder to be heated than the food 6B, the rotation antenna 41 is appropriately controlled so that the food 6A is preferentially heated to change the microwave distribution, and the food temperature It is possible to finish food 6A and food 6B to the temperature suitable for taste simultaneously by performing cooking while estimating.

  Moreover, the cooking according to cooking temperature can also be performed by heating, measuring the surface temperature of a foodstuff using the temperature sensor 52 of the heating chamber 3 upper part. For example, the temperature of the food surface is measured using the temperature sensor 52 during cooking, and when the temperature of the food 6B is lower than that of the food 6A, the rotating antenna 41 is controlled to heat the food 6B with priority. It is possible to finish cooking by aligning the temperatures of the food 6A and the food 6B. In addition, although the case where the temperature sensor 52 was installed above the side surface was shown as an example, the temperature sensor 52 can be installed anywhere as long as it is a place where the surface temperature of food can be detected, such as above the upper surface or the back surface. good.

  Next, the flow of cooking when the food 6A in the cooking container 30 and the food 6B outside the cooking container 30 are simultaneously cooked using the heating cooker of the present embodiment will be described.

  First, after attaching the stirring blade 31 to the inside of the removed cooking container 30, the food 6A is put. Next, when the door 2 is opened and the connecting rotating portion 301 of the cooking container 30 is attached to the stirring drive shaft 33 and the connecting hole 302 is fitted to the connecting protrusion 32, the cooking container 30 is fixed to the bottom surface of the heating chamber 3. The stirring blade 31 can be driven by the stirring motor 35. The food 6A may be anything as long as it is a mixture of a plurality of ingredients such as a mixture of a liquid food such as soup and a solid food, or a combination of powder and water such as flour. Assuming that the vegetable soup is heated and cooked by adding a bite-sized vegetable and solid soup or water. Since the connecting rotary part 301 on the bottom surface of the cooking container 30 is sealed so that the liquid does not leak, the food container 6A is first put into the cooking container 30 as described above, and then the cooking container 30 is heated to the heating chamber 3. However, the food 6A may be put into the cooking container 30 after the cooking container 30 is attached to the bottom surface of the heating chamber 3, and either method can be used.

  When the cooking container 30 is fixed to the bottom surface of the heating chamber 3, the food 6B is placed in the space on the left side of the cooking container 30. The food 6B may be anything as long as it is cooked by a heating cooker, but here, as an example, a case where raw vegetables are put on a plate and heated vegetables are cooked will be described.

  Thus, when the food 6A is placed on the right side of the heating chamber 3 and the food 6B is placed on the left side of the heating chamber 3, the door 2 is closed, and the operation panel (not shown) is used to instruct cooking of vegetable soup and warm vegetables. To do.

  The main body 1 instructed to cook first drives the magnetron 40 and the antenna motor 43. The microwave generated in the magnetron 40 is transmitted through the waveguide 42 and irradiated while being diffused into the heating chamber 3 by the rotating antenna 41, and the food 6A and the food 6B are irradiated with microwave energy. It is heated by absorbing.

  The microwaves irradiated into the heating chamber 3 are diffused by the rotation of the rotating antenna 41, and the microwave distribution in the heating chamber 3 varies according to the rotation of the rotating antenna 41. It is possible to heat the whole of the food 6A and the food 6B without unevenness without concentrating on one of the foods.

  In addition, when more microwave energy is required for one of the foods 6A and 6B, the microwave distribution is appropriately controlled by controlling the rotating antenna 41 so that the food on one side is preferentially heated. By doing, food 6A and food 6B can be cooked equally.

  Moreover, since microwaves can be irradiated from the bottom surface of the heating chamber 3 in the vicinity of the food 6A and the food 6B, the attenuation of the microwave energy is small, so that heating can be performed more efficiently than when microwaves are irradiated from a distance. it can.

  Here, when the stirring motor 35 is driven, the stirring blade 31 is rotationally driven. As a result, the food 6A in the cooking container 30 is agitated, and the vegetables and seasoning liquids that tend to sink move through the liquid by applying external force, so that the seasonings such as solid soup are easily dissolved, Occurrence of uneven taste can also be prevented.

  During cooking, the temperature of the food is detected by the temperature sensor 52, or the temperature of the food is estimated according to the cooking time and menu, and if it is determined that the temperature of the food has reached the finished temperature, the cooking is automatically performed. End automatically. Thus, in the cooking device of the present embodiment, cooking is performed simultaneously with the food 6B while stirring the food 6A.

  Here, an example in which the food 6A is cooked while being stirred with the stirring blade 31 is shown, but various cooking is possible by changing the shape and performance of the stirring blade 31. For example, by using the stirring blade 31 provided with a sharp blade, the food 6A can be stirred while being crushed inside the cooking container 30, so that it can be processed into a smooth liquid just by adding the material. For example, by putting ingredients such as vegetables and milk into the cooking container 30 and cooking a smooth soup such as potage soup, and by cooking ingredients and ingredients automatically by adding ingredients such as meat and vegetables Can do.

  Further, by making the stirring blade 31 into a shape suitable for kneading, it is possible to knead the dough by combining powder and water, so it is also possible to make dough such as bread, udon, pasta and soba.

  Here, bread dough materials such as flour, butter, yeast, sugar, salt, and milk can be put into the cooking container 30 to knead the bread dough, and the main body 1 is heated by a magnetron 40 or an upper heater 50. Since the means is provided, the bread dough in the cooking container 30 can be fermented and baked as it is.

  Fermentation of bread dough is a process of expanding the dough by leaving the dough at a low temperature of about 30 to 40 ° C. The dough absorbs microwaves, so even if heated using microwaves, Either heating may be performed using heat transfer from the heater 50. Moreover, if it is a heating cooker with the function which supplies a vapor | steam in the heating chamber 3, drying of dough can be prevented and fermentation can be accelerated | stimulated by supplying a vapor | steam simultaneously.

  The baking of the dough is a process in which the dough is baked at a high temperature of about 180 to 250 ° C. to give a baked color. The cooking container 30 and the internal dough are heated with the upper heater 50 and a hot air unit (not shown). The bread dough can be baked by heating using hot air ejected from the ejection port 51. It is possible to heat and bake the cooking container 30 using microwaves by attaching a heating element that absorbs microwaves to the cooking container 30, but the bread dough absorbs the microwave and the bread dough inside is dried. Therefore, it is more desirable to appropriately combine with heating with a heater. Here, by using the metal cooking vessel 30 with good heat conduction, heating the cooking vessel 30 by convection heating and convection heat transfer for blowing hot air from the hot air outlet 51 to the inside of the heating chamber 3. This makes it possible to perform baking cooking with reduced heating time. Moreover, even if the cooking container 30 is not arranged at the center of the bottom surface of the heating chamber 3 by blowing hot air from the back of the heating chamber 3 and performing convection heating, the cooking container 30 and the bread dough inside can be heated evenly. Is possible.

  Therefore, since a series of operations from kneading to baking can be performed simply by putting the dough material into the cooking container 30, it is possible to automatically bake and cook the bread.

  Thus, the cooking device according to the present embodiment is compatible with other various types of foods 6A and 6B and combinations thereof, and can improve the cooking performance of many menus.

  For example, even when the food 6A is heated such as curry or stew such as curry or stew, it can be cooked while forcibly convection by stirring with the stirring blade 31, so that it is easy to harden. Can be cooked without burning or uneven heating, and by placing water and rice in a container such as casserole as food 6B, rice can be cooked at the same time as cooking curry. Curry rice can be cooked at once.

  Put food and vegetables as meat 6A and salt and pepper as a seasoning in the cooking container 30 and place food and food 6B as pasta and water in the container. Can do.

  In addition, flour, butter, water, etc. are put in the cooking container 30 as the food 6A, and meat is set as the food 6B, so that the bread is automatically baked from where the dough is kneaded, and at the same time, the side dishes such as roast beef and saute Can be cooked.

  In addition, it is possible to heat several foods at the same time, especially microwave heating because it is suitable for heating two kinds of foods with similar time, energy and heating pattern. Combines and heater heating to cook baked goods and confiture at the same time, cooks side dishes such as spare ribs and sauce at the same time using heater heating, and prepares white sauce and ingredients at the same time using microwave heating to make gratin It is possible to reduce the time and effort to make.

  As described above, by using the heating cooker of this embodiment, while cooking, while automatically performing operations that had to be performed manually in advance, such as mixing food, crushing, and kneading, at the same time, Another cooking can be done. That is, cooking with less unevenness in heating can be performed in a shorter time and with less energy than before, and a user-friendly cooking device can be provided.

  In the above-described embodiment, the configuration in which the power of the agitation motor 35 is transmitted to the connecting rotation unit 301 of the cooking container 30 via the agitation drive shaft 33 has been described. However, the agitation motor 35 is omitted and the power of the agitation motor 35 is omitted. It is good also as a structure which transmits directly to the connection rotation part 301 of the cooking container 30. FIG.

  The heating cooker of Example 2 is demonstrated using FIGS. 5-7. FIG. 5 is an exploded perspective view of the heating cooker according to the second embodiment as viewed from the upper front side. 6 is a cross-sectional view seen from the front when the cooking container 30 is attached to the heating cooker of the second embodiment and the food is heated and cooked, and FIG. 7 is a case where the cooking container 30 is removed from the heating cooker of the second embodiment. It is sectional drawing seen from the front. Note that, among the configurations of the second embodiment, the description of the configurations common to the first embodiment will be omitted.

  In the heating cooker of the present embodiment, in addition to the heating cooker of the first embodiment, three weight sensors 46 are installed in the machine chamber 4 so that the tip portion is exposed on the bottom surface of the heating chamber 3.

  Therefore, when the cooking container 30 is used by being attached in the heating chamber 3, it can be used in the same manner as in the first embodiment, and when the cooking container 30 is removed, a table is provided on the bottom surface of the heating chamber 3 as shown in FIG. The plate 37 can be installed, and the weight sensor 46 can support the table plate 37.

  Therefore, in this embodiment, when the cooking container 30 is not used, the weight of the object to be heated placed on the table plate 37 can be detected by providing the table plate 37 and the weight sensor 46. is there.

  By providing three or more weight sensors 46 as in this embodiment, the table plate 37 can be stably supported, and in addition to the weight of the object to be heated, the placement position is detected. Is possible.

  The table plate 37 is made of a dielectric material that hardly absorbs microwaves, such as ceramic or glass, and the microwaves pass through the table plate 37.

  Since the rotating antenna 41 is provided on the bottom surface of the heating chamber 3, the microwave is concentrated on the object to be heated by appropriately controlling the rotating antenna 41 according to the weight and position of the object to be heated on the table plate 37. Therefore, more efficient cooking is possible.

  By installing the table plate 37 on the bottom surface of the heating chamber 3, the stirring drive shaft 33 is covered by the table plate 37, so that the inflow of steam from the through portion of the stirring drive shaft 33 to the machine chamber 4 can be prevented. Heat cooking can be performed while supplying a large amount of steam into the heating chamber 3.

  Further, since the agitation drive shaft 33 can be used without being exposed to the heating chamber 3, it is possible to minimize the adhesion of food debris to the agitation drive shaft 33 and the entry of food and steam from the agitation drive shaft 33 into the machine chamber 4 as much as possible. Therefore, compared to the case where the agitation drive shaft 33 is always exposed in the heating chamber 3, it is possible to prevent sparks caused by food residue and contamination and damage in the machine chamber 4 due to foreign matter contamination. Can be used more safely.

  Similarly, since the connection protrusion 32 and the partition plate 36 are not exposed in the heating chamber 3, it prevents the food residue from adhering to the connection protrusion 32 during cooking and the penetration of food into the partition plate 36. Since cooking can be performed in a state where the bottom surface of the heating chamber 3 is not uneven, it is easy to care for and easy to use even when it becomes dirty.

  Moreover, since the table plate 37 can be removed and washed when it becomes dirty, the cooking device can always be used in a clean state.

  As described above, by using the cooking device of the present embodiment, the cooking container 30 can be used to stir and chain foods while simultaneously heating and cooking a plurality of foods uniformly and more safely and conveniently. An enhanced cooking device can be provided.

  The heating cooker of a present Example is demonstrated using FIGS. 8-10. FIG. 8 is an exploded perspective view of the heating cooker according to the third embodiment as viewed from the front upper side. 9 is a cross-sectional view seen from the front when the cooking container 30 is attached to the heating cooker according to the third embodiment and the food is cooked, and FIG. 10 is a case where the cooking container 30 is removed from the heating cooker according to the third embodiment. It is sectional drawing seen from the front. Of the configurations of the third embodiment, the description of the configurations common to the first embodiment will be omitted.

  In the heating cooker of the present embodiment, there is no partition plate 36 having the heating cooker structure of the first embodiment, and instead the plate 38 is fixed except for the position where the cooking container 30 is attached to the bottom surface of the heating chamber 3. The plate 38 is a dielectric material that hardly absorbs microwaves, such as ceramic and glass, and can pass microwaves. Therefore, the microwaves irradiated from the rotating antenna 41 pass through the plate 38 and pass through the heating chamber 3. Is irradiated.

  In addition, a plate lid 39 made of the same material as the plate 38 is detachably provided. When the cooking container 30 is removed, a circular plate lid 39 is also formed in the circular hole portion of the plate 38 as shown in FIG. Can be attached. By attaching the plate lid 39 to the plate 38, the stirring drive shaft 33 to which the cooking container 30 is attached is not exposed to the bottom surface of the heating chamber 3, so that foreign matter such as food debris and steam enters the machine chamber 4 from the heating chamber 3. Can be prevented. Moreover, since the stirring drive shaft 33 and the connection protrusion 32 are not exposed in the heating chamber 3, adhesion of food residue can be prevented, spark caused by the food residue can be prevented, and the cooking device can be used safely.

  Further, the plate 38 and the plate lid 39 are smooth plates made of the same material, and the bottom surface of the heating chamber 3 can be made flat when the cooking container 30 is not fixed. easy. Also, the plate 38 is smooth and easy to clean, and the plate lid 39 has irregularities on the surface for removal, but if it gets dirty, it can be removed and washed, so it is easy to clean and always clean. Can be used for

  In this embodiment, the case where the plate lid 39 is circular and removable is shown. However, the shape of the plate lid 39 is not limited, and a part of the plate lid 39 such as a winding type or a sliding type is fixed to the plate 38 and can be opened and closed freely. There is no problem as long as it is a shape that can cover the stirring drive shaft 33.

  As described above, by using the cooking device of the present embodiment, a plurality of foods can be cooked appropriately and uniformly while stirring and kneading the food using the cooking container 30, and more safe and easy to use. A cooking device can be provided.

DESCRIPTION OF SYMBOLS 1 Main body 2 Door 3 Heating chamber 4 Machine room 4A Feed part 6, 6A, 6B Food 30 Cooking container 31 Stirring blade 32 Connection protrusion 33 Stirring drive shaft 34 Transmission device 35 Stirring motor 36 Partition plate 37 Table plate 38 Plate 39 Plate lid 40 Magnetron 41 Rotating antenna 42 Waveguide 43 Antenna motor 44 Antenna rotating shaft 45 Antenna housing part 50 Upper heater 51 Hot air outlet 52 Temperature sensor 301 Connecting rotating part 302 Connecting hole

Claims (3)

A heating chamber for storing food,
A cooking container removably attached to the bottom of the heating chamber;
A stirring motor that is provided below the heating chamber and that rotationally drives a stirring blade inside the cooking vessel;
A stirring drive shaft for transmitting the power of the stirring motor to the cooking container;
A magnetron provided below the heating chamber for supplying microwaves;
A rotating antenna that is provided below the heating chamber and irradiates the microwave;
An antenna motor that is provided below the heating chamber and that rotationally drives the rotating antenna;
The stirring drive shaft and the rotation shaft of the antenna motor are arranged so as to be substantially perpendicular to the bottom surface of the heating chamber ,
A heating cooker characterized in that the rotating shaft of the antenna motor is provided substantially at the center of the bottom surface of the heating chamber, and the rotating shaft of the stirring motor is provided only near one wall surface of the bottom surface of the heating chamber . . Below the heating chamber, a waveguide for transmitting the microwaves and an antenna housing for installing the rotating antenna are disposed,
The cooking device according to claim 1, wherein the stirring drive shaft is disposed outside the waveguide and the antenna housing portion.   The cooking device according to claim 1, wherein a member that covers the stirring drive shaft is provided on the bottom surface of the heating chamber so as to be detachable or openable.