JP2018088363A - Heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a smaller heating cooker that easily warms up a lunch box and drink and the like in a container with the table without heating unevenness.SOLUTION: A heating cooker of the present invention includes an antenna 49 that agitates microwave and applies the microwave upward on a bottom wall 14b as a lower surface of a cooking chamber 14, and the inner surface of the cooking chamber 14 is all formed of a material that is impermeable to microwaves, and a window 26 is provided on a right side wall 14d as the side face of the cooking chamber 14, and the microwave is applied from a window 26 toward the inside of the cooking chamber 14.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a heating cooker that heats an object to be cooked placed in a cooking chamber.

  As this type of heating cooker, for example, Patent Document 1 includes a temperature distribution detection unit using an infrared sensor that detects a temperature distribution in a cooking chamber, and a control unit that controls a magnetron serving as a microwave generation unit. Based on the detection signal from the sensor, the place where frozen food or normal temperature food to be cooked is placed in the cooking chamber is judged, and microwaves from the magnetron are emitted from below to cook the cooked food appropriately. What to do is disclosed.

Japanese Patent Application Laid-Open No. 2011-127827

  Currently, Japan is an aging society, and there is an increasing demand for a small-sized microwave oven that can be used anywhere easily even if it is placed on a table that mainly serves a hot lunch box. Since the microwave is radiated from below the object to be cooked, it is necessary to provide an antenna motor, a waveguide, and a magnetron under the antenna, which increases the size of the heating cooker.

  Here, the table which investigated the size of the main lunch container and the main mug which puts a drink in FIG. 7 is shown. As a result of investigation, the maximum size of these lunch boxes and mugs was 285 mm in width, 224 mm in depth, and 85 mm in height. A conventional small microwave oven equipped with a cooking chamber that can warm up all of these lunch boxes and mugs is currently known for in-car use that can be used in camping, but the small microwave oven is a simple one. Since it is a functional range and the microwave is simply radiated from one direction, there is a problem in that uneven heating occurs between the place where the microwave is emitted and the place where it is not emitted.

  In addition, although a USB-connected desk range and a water bottle type camping range are currently known, they did not have a cooking chamber capable of warming all the above-mentioned lunch containers and mugs. On the other hand, a microwave oven that does not cause uneven heating is required to have a certain size, and a microwave oven having a cooking chamber that can warm all the above-mentioned lunch boxes and mugs becomes even larger. Further, since the operation is complicated, there is a potential user dissatisfaction that the size is large and the operation is difficult.

  In addition, as health awareness grows, attention is paid to the number of chewing cycles, and there is a demand from a potential user who wants to eat freshly prepared meals over time. The appearance of a microwave oven that can be warmed up occasionally, a well-designed and high-performance sensing microwave oven, and a microwave oven that is optimal for use alone were desired.

  Therefore, in view of the above circumstances, the present invention is suitable for, for example, elderly people who are very difficult to cook, those who are difficult to give birth after childbirth and childcare, those who are busy with work and difficult to prepare meals, those who are living alone, living alone, etc. An object of the present invention is to provide a small heating cooker in which a lunch box or a drink placed in a container can be easily warmed on a table and there is no uneven heating.

  The present invention provides a heating cooker that cooks a food to be cooked in the cooking chamber by radiating microwaves from a microwave generation means into the cooking chamber, and the cooking chamber is disposed at a lower portion of the cooking chamber. An antenna for stirring microwaves and irradiating the object to be cooked is provided, and the inner surface of the cooking chamber is formed of a material that does not allow microwaves to pass therethrough, and a window is provided on a side surface of the cooking chamber. The microwave is radiated toward the inside of the cooking chamber.

  In this case, the apparatus further includes a waveguide that transmits the microwave to the inside of the cooking chamber, and the microwave generation unit is located below the cooking chamber and radiates the microwave of the microwave generation unit. It is preferable to connect the radiating portion to the waveguide.

  The apparatus further includes a driving unit that drives the microwave generation unit, and a lower space in which the antenna, the microwave generation unit, and the driving unit are disposed is provided below the cooking chamber. It is preferable to arrange the microwave generating means and the driving means on a diagonal line.

  According to the first aspect of the present invention, the antenna is disposed in the lower part of the cooking chamber. However, since microwaves are radiated from the window provided on the side surface of the cooking chamber to the inside of the cooking chamber, There is no need to dispose microwave generation means below, the height of the lower space located below the cooking chamber can be reduced, and the cooking device can be downsized. In addition, since the antenna stirs the microwave and irradiates the food to be cooked, uneven heating of the food to be cooked can be reduced.

  According to invention of Claim 2, a microwave generation means is arrange | positioned under a cooking chamber, and it arrange | positions a waveguide using the space between the side surface of a cooking chamber and a cabinet effectively from there. The width of the cooking device can be reduced, and the cooking device can be reduced in size.

  According to the invention of claim 3, since the microwave generating means and the driving means are provided with the greatest distance in the lower space, the influence of each other is minimized in terms of space, exhaust heat, electromagnetic waves, etc. Can be.

It is an external appearance perspective view of the microwave oven which shows the 1st Embodiment of this invention. It is the longitudinal cross-sectional view which looked at the microwave oven from the front front. It is a block diagram which shows the main electrical structures same as the above. It is a perspective view which shows the internal structure of a microwave oven, and the visual field of an infrared sensor same as the above. It is the longitudinal cross-sectional view which looked at the microwave oven which shows the 2nd Embodiment of this invention from the back side. It is the perspective view which looked at the microwave oven from the bottom in the state which opened the range bottom plate same as the above. It is a table | surface which shows the size of the main lunch container and mug put into the cooking chamber of a microwave oven.

  Hereinafter, preferred embodiments of a heating cooker according to the present invention will be described with reference to the accompanying drawings. Throughout these drawings, common parts are denoted by common reference numerals.

  1-4 has shown 1st Embodiment which applied the heating cooker of this invention to the microwave oven. First, the overall configuration of the microwave oven will be described with reference to FIGS. 1 and 2. Reference numeral 1 denotes a main body configured in a substantially rectangular box shape, and the main body 1 is a metal as a member that covers the outer shell of a microwave oven as a product. A cabinet 2 made of metal is provided. Reference numeral 3 denotes an openable / closable door provided on the front surface of the main body 1.

  The upper surface of the door 3 is provided with an indentation opening / closing operation 4 that is used when opening and closing the vertically open door 3. An operation panel unit 5 for display, notification, and operation is provided below the door 3. It has. The operation panel unit 5 is provided with operation means 7 that enables various operation inputs related to cooking, in addition to the display means 6 that displays the setting contents and progress of cooking. Although not shown, an operation panel PC (printed circuit) board is arranged on the rear side of the operation panel unit 5 inside the door 3 in order to control the display means 6 and the operation means 7.

  The cabinet 2 that forms the left and right side surfaces and the top surface of the main body 1 has a range front plate 12 that forms the front surface of the main body 1 and a rear surface of the main body 1 so as to cover the main body 1 and thus the range bottom plate 11 that forms the bottom surface of the microwave oven. It is provided between the rear plate 13 to be formed. Moreover, the main body 1 is provided with a cooking chamber 14 that houses the cooking object S to be cooked therein, and an infrared sensor 15 that is a temperature distribution detecting means for detecting the temperature of the cooking object S. The front surface of the cooking chamber 14 reaches the front plate 12, and is opened for taking in and out the cooking object S. The opening is opened and closed by the door 3.

  The peripheral wall forming the inner surface of the cooking chamber 14 includes a ceiling wall 14a, a bottom wall 14b, a left side wall 14c, a right side wall 14d, and a back wall 14e. In the lower space 18 of the main body 1 located under the cooking chamber 14, a magnetron 21 serving as a microwave generating unit and a driving unit for driving the magnetron 21 to supply microwaves to the cooking chamber 14. And a cylindrical waveguide 24 extending from the side space 23 of the main body 1 formed between the left side wall 14c of the cooking chamber 14 and the cabinet 2 to the lower space 18 described above. Is provided. A base portion of the waveguide 24 extends below the bottom wall 14 b of the cooking chamber 14 and is connected to a radiation portion 25 that emits microwaves provided at the tip of the magnetron 21. Further, the distal end portion of the waveguide 24 communicates with a window 26 formed in the left side wall 14c which is the side surface of the cooking chamber 14. By being configured in this way, by the energization operation to the magnetron driving device 22, microwaves are radiated from the magnetron 21 and transmitted to the waveguide 24, and the cooking chamber is provided from the window 26 provided on one side of the cooking chamber 14. The microwave is radiated toward the internal space 14.

  The bottom wall 14b of the cooking chamber 14 is configured by covering the upper surface opening of the concave antenna housing portion 42 formed in the metal plate 41 with a bottom plate 43 that can transmit microwaves, such as a ceramic plate. The metal plate material 41 that cannot transmit microwaves is formed integrally with the left side wall 14c, the right side wall 14d, and the back wall 14e as well as the peripheral part of the bottom wall 14b, and the cooking chamber 14 excluding the bottom plate 43 is formed. The inner surface of is made of a material that cannot transmit microwaves.

  In the lower space 18 of the main body 1, in addition to the above-described magnetron 21, magnetron driving device 22, and waveguide 24, an antenna motor 46 disposed below the antenna housing portion 42, and a lower end portion of which is an antenna motor. An antenna holder 47 that is attached and fixed to the rotation shaft 46 and an antenna 49 that is attached and fixed to the antenna holder 47 so as to be rotatable inside the antenna housing portion 42 are mainly disposed. In a state where the upper surface opening of the antenna housing portion 42 is closed with the bottom plate 43, the entire antenna 49 is arranged in parallel to the bottom plate 43 so as to face the flat bottom plate 43 forming the bottom wall 14 </ b> B of the cooking chamber 14.

  The rotating antenna 49 agitates the microwave transmitted to the waveguide 24 and radiated into the cooking chamber 14 from the window 26, and this microwave is applied to the object S to be cooked placed on the bottom plate 43. In this embodiment, the contour shape seen from above is a circular shape with a part cut away, and is formed of a flat metal plate such as aluminum having a certain thickness and without unevenness. Further, when the gap between the outer peripheral end surface of the antenna 49 and the side surface of the antenna housing portion 42 is about 3 mm or less, a spark due to electric field concentration between metals occurs. Therefore, it is preferable that the distance between the antenna 49 and other metal, for example, the antenna housing portion 42 is designed to be 10 mm or more apart.

  The above-described infrared sensor 15 is disposed in the upper space 50 of the main body 1 formed between the ceiling wall 14a and the cabinet 2, and the infrared light is transmitted through the ceiling wall 14a, which is located immediately below the infrared sensor 15. A possible window 51 is opened. The lower space 18 and the side space 23 including the upper space 50 communicate with each other as an internal space of the main body 1.

  The infrared sensor 15 constitutes the temperature distribution detection means 52 of the present embodiment, and the temperature distribution detection means 52 here is housed therein by detecting the temperature distribution in the cooking chamber 14 through the window 51. The surface temperature of the cooking object S is detected in a short time from the amount of infrared rays emitted from the cooking object S. Further, since the temperature of the object to be cooked S can be detected more correctly when the distance from the infrared sensor 15 to the object to be cooked S is shorter, the window 51 is near the position immediately above the position where the object to be cooked S is placed. In addition, it is desirable that an opening be formed near the rotation axis of the antenna 49. In addition, in order to reduce the thermal influence on the internal space of the main body 1, the window 51 may be closed with an infrared transmitting member (not shown).

  Due to the arrangement configuration of each part in the internal space of the main body 1, the microwave oven of the present embodiment has the inside size of the cooking chamber 14 while significantly reducing the outer size of the main body 1 to be 340 mm in width × 255 mm in depth × 300 mm in height. The size could be configured to be 290 mm wide × 227 mm deep × 120 mm high, and larger than the maximum values (width 285 mm × depth 224 mm × height 85 mm) in the lunch box and mug cup in FIG. Therefore, not only such a lunch container but also a mug can be put in the cooking chamber 14 as the cooking object S and cooked by heating. Moreover, in the microwave oven of this embodiment, since the microwave radiated | emitted from the window 26 formed in the left side wall 14c of the cooking chamber 14 is stirred by the antenna 49 and radiated | emitted to the to-be-cooked object S, it is to be cooked. Uneven heating of the object S can be reduced.

  FIG. 3 illustrates the main electrical configuration of the microwave oven of the present embodiment. In the figure, 81 is a control means constituted by a microcomputer, and as is well known, this control means 81 is a CPU as an arithmetic processing means, a memory as a storage means, a timer as a timing means, an input, An output device is provided.

  In addition to the operation means 7 and the temperature distribution detecting means 52 described above, a door open / close detecting means 82 for detecting the open / closed state of the door 3 and an antenna for detecting the origin of rotation of the antenna 49 are provided at the input port of the control means 81. The position detection means 83 are electrically connected to each other. In addition to the display means 6 described above, the output port of the control means 81 includes a microwave heating means 85 including the magnetron 21 and the magnetron driving device 22, and an antenna motor 46 for rotating the antenna motor 46. Antenna driving means 86 are electrically connected to each other.

  The control unit 81 receives the operation signal from the operation unit 7 and the detection signals from the temperature distribution detection unit 52, the door opening / closing detection unit 82, and the antenna position detection unit 83, and receives a predetermined time based on the time measurement from the time measurement unit. At this timing, a drive control signal is output to the microwave heating means 85 and the antenna drive means 86, and a display control signal is output to the display means 6. Such a function is realized by the control unit 81 reading a program recorded in the memory as a storage medium. In particular, in the present embodiment, the control unit 81 functions as a heating cooking control unit 87 and a display control unit 88. It has a program to let you.

  The heating cooking control unit 87 mainly controls the operation of each part related to the cooking of the cooking object S. Upon receiving an operation signal accompanying the operation of the operation unit 7, the heating cooking control unit 87 generates a detection signal from the door opening / closing detection unit 82. When it is determined that the door 3 is closed, a control signal is sent to the microwave heating means 85 or the antenna driving means 86 in accordance with the operation signal to control various cooking for the cooking object S. To do. In the present embodiment, a plurality of menus are stored in advance in the memory as cooking information including the material of the object to be heated S and the heating conditions for performing the microwave heating, and the heating cooking controller 87 includes the cooking information. When an operation for executing microwave heating is performed from the operation means 7 for one menu selected from the above, an automatic cooking function for automatically heating the cooking object S in a predetermined procedure according to the selected menu is provided. I have.

  In such an automatic cooking function, in the present embodiment, for example, when a menu of an automatic range for warming or thawing the cooking object S is selected, the microwave from the microwave heating means 85 is supplied to the cooking chamber 14. While radiating inside, cooking time, range output, etc. are automatically set without any operation input from the operation means 7, and the microwave heating means 85 is driven and controlled with the set output until the set time is reached. An automatic range cooking control unit 89 that heats the object S to be cooked in the range is provided as a function in the heating cooking control unit 87.

  The display control unit 88 controls the operation related to the display of the display unit 6 in cooperation with the heating cooking control unit 87. The display means 6 to be controlled by the display control unit 88 is configured by a liquid crystal panel or an illumination lamp, but other displays may be used.

  Next, the operation of the microwave oven having the above-described configuration will be described. With the cooking object S previously placed in the cooking chamber 14, the door 3 is closed by placing a finger on the recess 4, and the cooking menu is displayed by the operating means 7. When the start of cooking is instructed after the selection operation, a control signal generated corresponding to the selected cooking menu is output at a predetermined timing in accordance with a control program incorporated in the storage unit of the control means 81, and the object S to be cooked is output. Cooked by heating.

  Here, for example, when the cooking menu for range heating including the above-described automatic range is selected, the control unit 81 receives the detection signal from the temperature distribution detection unit 52 so that the cooking object S is heated to the set temperature. In addition, appropriate control signals are sent to the microwave heating means 85 and the antenna driving means 86 while confirming the origin position of the antenna 49 with the detection signal from the antenna position detection means 83. Thereby, the magnetron 21 and the antenna motor 46 are energized, and the microwave radiated from the window 26 to the interior space of the cooking chamber 14 is stirred by the rotating antenna 49 and irradiated toward the cooking object S. Thus, the object to be heated S that is supplied and radiated into the cooking chamber 14 and placed on the bottom wall 14b is subjected to range heating.

  In this range heating cooking, in this embodiment, the infrared sensor 15 fixed to the main body 1 continuously detects the temperature of the cooking object S placed in the field of view V1 of the infrared sensor 15 as shown in FIG. The control means 81 takes in the detection signal from the infrared sensor 15 and monitors the temperature of the cooking object S in the vicinity of the center in the cooking chamber 14.

  Thus, in the present embodiment, the temperature near the center in the cooking chamber 14 can be continuously detected by the detection signal from the infrared sensor 15. The control means 81 receives these detection signals and controls the operation of the microwave heating means 85 so that the desired range heating cooking is performed on the object S to be cooked. Further, as a function of abnormality monitoring, when the detected temperature of the object to be cooked S exceeds the normal range, it is determined that an abnormality has occurred in the device, and energization to the magnetron 21 is forcibly stopped. In any case, the infrared sensor 15 instantaneously determines the temperature of the object S to be cooked, and as a result, it is possible to accurately control cooking and monitor abnormality. In addition, it is good also as a structure which provides the movable swing mechanism (not shown) which rocks the infrared sensor 15 with respect to the main body 1, and detects the temperature distribution of the whole cooking chamber 14 inside.

  Further, when the cooking menu of the automatic range that warms up the object to be cooked S is selected by the operation means 7, the automatic range cooking control unit 89 starts from the infrared sensor 15 during the range heating of the article to be heated S placed in the cooking chamber 14. , The food temperature that is the temperature of the object to be cooked S is measured, and regardless of the type and amount of the object to be cooked S, the measured food temperature is heated to an appropriate set temperature higher than room temperature. Thus, the operation of the microwave heating means 85 is controlled.

  As described above, the microwave oven as the heating cooker according to the present embodiment radiates the microwave from the magnetron 21 as the microwave generating means into the cooking chamber 14, thereby allowing the microwave oven 21 to enter the cooking chamber 14. The cooked food S is heated in the range. In particular, the antenna 49 for stirring the microwave and irradiating the food to be cooked S is provided in the lower part of the cooking chamber 14, and the microwave is transmitted through the inner surface of the cooking chamber 14. A window 26 is provided on the left side wall 14c as a side surface of the cooking chamber 14, and microwaves are radiated from the window 26 toward the object S to be cooked.

  In this case, the antenna 49 and the antenna driving means 86 are disposed in the lower part of the cooking chamber 14, but the microwave is not from the antenna 49 but into the cooking chamber 14 through the window 26 provided on the left side wall 14 c of the cooking chamber 14. Since it is radiated, it is not necessary to dispose the magnetron 21 or the waveguide 24 below the antenna 49 or the antenna driving means 86, and the height of the lower space 18 of the main body 1 located below the cooking chamber 14 is reduced. Therefore, the main body 1 and thus the microwave oven can be downsized. Moreover, since the antenna 49 stirs the microwave and irradiates the object S to be cooked, uneven heating of the object S to be cooked can be reduced. Therefore, it is possible to provide a small microwave oven in which a lunch box or a drink placed in a container can be easily warmed on a table and there is no uneven heating.

  The microwave oven of the present embodiment further includes a waveguide 24 that transmits microwaves to the inside of the cooking chamber 14, and the magnetron 21 is located in the lower space 18 formed below the cooking chamber 14. The radiation portion 25 that emits the microwave is connected to the base portion of the waveguide 24.

  In this case, the magnetron 21 is disposed in the lower space 18 formed below the cooking chamber 14, and from there, the side space 23 between the left side wall 14 c of the main body 1 and the cabinet 2 is effectively used to guide the waveguide. By arranging 24, the width of the main body 1 can be reduced, and the main body 1 and thus the microwave oven can be reduced in size.

  5-6 has shown 2nd Embodiment which applied the heating cooker of this invention to the microwave oven. In the microwave oven of the present embodiment, a semiconductor oscillation substrate 91 in which a semiconductor element for high frequency heating is mounted instead of the magnetron 21 is used as a high frequency heating source, and a semiconductor oscillation substrate including a transformer or the like is used instead of the magnetron driving device 22. Driving means 92 is provided. A waveguide 24 is provided from the side space 23 of the main body 1 formed between the left side wall 14 c of the cooking chamber 14 and the cabinet 2 to the lower space 18 of the main body 1. It extends below the bottom wall 14 b of the cooking chamber 14 and is connected to a radiation portion 93 that emits microwaves provided at the tip of the semiconductor oscillation substrate 91. Further, the distal end portion of the waveguide 24 communicates with a window 26 formed in the left side wall 14c which is the side surface of the cooking chamber 14. With this configuration, a microwave provided from the semiconductor oscillation substrate 91 is guided to the waveguide 24 by the energization operation to the semiconductor oscillation substrate driving unit 92 and is provided on one side of the cooking chamber 14. The microwave is radiated from 26 toward the internal space of the cooking chamber 14. A plurality of semiconductor oscillation substrates 91 may be provided to increase the microwave output.

  5 and FIG. 6, in the lower space 18, the semiconductor oscillation substrate 91 and the semiconductor oscillation substrate driving means 92 are disposed so as to be positioned diagonally in plan view. By being configured in this way, the semiconductor oscillation substrate 91 and the semiconductor oscillation substrate driving means 92 are provided at the most distance in the lower space 18, so that in terms of space, exhaust heat, electromagnetic waves, and the like, Can be minimized.

  The size (for example, width 75 mm × depth 112 mm × height 30 mm) of the semiconductor element for high-frequency heating provided in the semiconductor oscillation substrate 91 is smaller than the size of the magnetron 21 (for example, width 128 mm × depth 96.5 mm × height 73 mm). Since the necessary inverter circuit can be omitted in the magnetron 21, the microwave oven according to the present embodiment is configured as described above, so that the size of the cooking chamber 14 is 290 mm wide, 215 mm deep, and 120 mm high. While maintaining substantially the same capacity as the form, the height of the main body 1 was 340 mm wide × 255 mm deep × 260 mm high, and the height direction could be further reduced as compared with the first embodiment.

  As described above, even in the microwave oven as the heating cooker of the present embodiment, the microwave from the semiconductor oscillation substrate 91 as the microwave generating means is radiated into the cooking chamber 14 to be put into the cooking chamber 14. The cooking object S is heated in the range. In this case, in particular, an antenna 49 for stirring the microwave and irradiating the cooking object S is provided at the lower part of the cooking chamber 14, and the inner surface of the cooking chamber 14 is entirely microwaved. Is made of a material that cannot pass through, and a window 26 is provided on the right side wall 14 d as a side surface of the cooking chamber 14, and microwaves are emitted from the window 26 toward the antenna 49.

  In this case as well, the antenna 49 and the antenna driving means 86 are disposed in the lower part of the cooking chamber 14, but the microwave is not from the antenna 49, but from inside the cooking chamber 14 through the window 26 provided on the left side wall 14 c of the cooking chamber 14. Therefore, it is not necessary to dispose the semiconductor oscillation substrate 91 and the waveguide 24 below the antenna 49 and the antenna driving means 86, and the height of the lower space 18 of the main body 1 located below the cooking chamber 14. The main body 1 and thus the microwave oven can be reduced in size. Moreover, since the antenna 49 stirs the microwave and irradiates the object S to be cooked, uneven heating of the object S to be cooked can be reduced. Therefore, it is possible to provide a small microwave oven in which a lunch box or a drink placed in a container can be easily warmed on a table and there is no uneven heating.

  The microwave oven of the present embodiment further includes a waveguide 24 that transmits microwaves to the inside of the cooking chamber 14, and the semiconductor oscillation substrate 91 is located in the lower space 18 formed below the cooking chamber 14. The radiating portion 93 that radiates microwaves of the semiconductor oscillation substrate 91 is connected to the base portion of the waveguide 24.

  In this case, the semiconductor oscillating substrate 91 is disposed in the lower space 18 formed below the cooking chamber 14, and from there, the side space 23 between the left side wall 14 c of the main body 1 and the cabinet 2 is effectively used for waveguide. By arranging the tube 24, the width of the main body 1 can be reduced, and the main body 1 and thus the microwave oven can be downsized.

  In addition, the microwave oven according to the present embodiment further includes a semiconductor oscillation substrate driving unit 92 as a driving unit for driving the semiconductor oscillation substrate 91. The antenna 49, the semiconductor oscillation substrate 91, and the semiconductor oscillation substrate driving unit 92 are provided below the cooking chamber 14. A lower space 18 is provided in which the semiconductor oscillation substrate 91 and the semiconductor oscillation substrate driving means 92 are positioned diagonally in plan view.

  In this case, since the semiconductor oscillation substrate 91 and the semiconductor oscillation substrate driving means 92 are provided at the maximum distance in the lower space 18, the mutual influence is minimized in terms of space, exhaust heat, electromagnetic waves, and the like. it can.

  In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the meaning of this invention. For example, in the present embodiment, the infrared sensor 15 is provided as the temperature distribution detection means, but a thermistor as the temperature detection means may also be provided. Furthermore, it is good also as a structure which provides the window 26 in the right side wall 14d instead of the left side wall 14c of the cooking chamber 14, and irradiates the inside of the cooking chamber 14 from there.

14 Cooking room 14c Left side wall (side)
14d right side wall (side)
18 Lower space 21 Magnetron (microwave generation means)
24 Waveguide 25, 93 Radiation part 49 Antenna 91 Semiconductor oscillation substrate (microwave generation means)
92 Semiconductor oscillation substrate driving means (driving means)
S

Claims (3)

In a heating cooker that cooks the food to be cooked in the cooking chamber by radiating microwaves from the microwave generating means into the cooking chamber,
In the lower part of the cooking chamber, an antenna for stirring the microwave and irradiating the food to be cooked is provided.
The inner surface of the cooking chamber is formed of a material that cannot transmit microwaves.
A cooking device, wherein a window is provided on a side surface of the cooking chamber, and the microwave is radiated from the window toward the inside of the cooking chamber. A waveguide for transmitting the microwave to the inside of the cooking chamber;
The microwave generating means is located below the cooking chamber,
The heating cooker according to claim 1, wherein a radiation portion for radiating the microwave of the microwave generation means is connected to the waveguide. Drive means for driving the microwave generation means,
Provided below the cooking chamber is a lower space in which the antenna, the microwave generating means and the driving means are disposed,
The cooking device according to claim 1 or 2, wherein the microwave generating means and the driving means are arranged diagonally in the lower space.