JP6082987B2 - Induction heating cooker - Google Patents

Description

The present invention relates to a high frequency heating cooker having a cooker tool such as a grill pan by utilizing the heat generated by the microwave is irradiated, cooking food.

  In recent years, in a high-frequency cooking device such as a microwave oven, in addition to a microwave heating (dielectric heating) function for heating food by directly irradiating the food with microwaves, a cooking utensil installed in a high-frequency cooking device, so-called There is a cooking function using a grill plate. Hereinafter, this is called a grill pan cooking function.

  This grill pan cooking function is a heating element that absorbs microwaves (high frequency) and generates heat. A grill pan as a cooking utensil applied to the back of the grill pan is installed in the heating chamber, and food is placed on the grill pan. It is placed and the food is cooked by heat generated from the heating element by microwave irradiation.

  In such grilled dish cooking, since the food comes into contact with the grill dish that generates heat by microwaves, fat oozes out of the food, it is necessary to drain the oozed fat from between the food and the grill dish. Hereinafter, this is referred to as degreasing.

  Conventionally, there is a grill pan which is a cooking utensil having a configuration as shown in FIGS. 15 to 17 in which the problem of degreasing is improved (see, for example, Patent Document 1).

  The prior art will be described with reference to the drawings.

15 to 17 show a top view, a perspective view, and a side sectional view of a conventional grill pan, respectively. As shown in FIGS. 15 to 17, the conventional grill pan P 1 has a substantially rectangular shape as a whole when viewed from above, and has an edge P 2 and an edge having a bowl-like shape around the periphery. A peripheral groove P3 is provided inside P2.

Inside the peripheral groove P 3, the bank portion of the elongated thin rectangular shape with rounded corners are aligned plurality laterally between the two bank portions adjacent grooves is provided. Each bank portion, a length of up to one side to an opposing side of the circumferential groove P 3. Thus, the inner portion of the peripheral groove P 3 are alternately aligned in the bank portion and the groove in the transverse direction, the cross-sectional shape a waveform shape. Bottom of circumferential groove P 3 is lower than the bottom of the groove P 30.

Hereinafter, attention is paid only to the bank portions P 11 and P 21 and the groove portion P 30.

On the top surfaces of the bank portions P 11 and P 21, there are provided substantially planar mounting surfaces P 12 and P 22 on which food is placed, respectively. On the back surfaces of the bank portions P 11 and P 21 and the groove portion P 30, a heating element P 4 that is a radio wave absorber mainly composed of ferrite is formed.

When the grill pan P 1 configured as described above is installed in a heating chamber of a high-frequency heating cooker (not shown) and the microwave is irradiated on the back surface of the grill pan P 1, the heating element P 4 generates heat and is placed. it can be cooked by the heat transmitted from the surface P 12, P 22. Fat that oozes from the food during cooking is accumulated around the groove P 3 via a groove P 30.

As shown in FIG. 15, the width of the bank portion P 11, surface P 12 mounting is provided on the upper surface of the P 21, P 22 is the most widely in the longitudinal direction near the center of the bank portion P 11, P 21, ambient It becomes narrower as it gets closer to the groove P3 .

As shown in FIG. 17 (b), the vertical distance between the bottom and the mounting surface P 12, P 22 of the groove P 30, i.e., the depth D of the groove P 30 is the bank portion P 11, P 21 shallowest near the vicinity of the center in the longitudinal, becomes deeper with increasing close around groove P 3.

The central area of the grill pan P 1, soft food falls into the groove P 30, but comes into contact with the bottom of the groove P 30, according to close around the groove P 3, possibility of the food is in contact with the bottom of the bottom part P 30 because less fat oozing during cooking along the slope of the groove P 30, is guided around groove P 3.

JP2011-139775A

However, in the conventional configuration, since the width of the peripheral groove P 3 close to the groove P 30 is wide, oven cooking menu by hot air circulation, for example, such as candy-based ones, butter rolls, such as cookies When baking a bread type thing, the dough before baking is a soft state. Thus, the dough, drop into the groove P 30, after the burning of the state cookies and such as Kawarasenbei, because the bottom is to butter a roll of large irregularities, at the time of oven cooking, did not allow the use of the grill pan.

  In the case of cooking with hot air circulation, a large number of cookies, butter rolls, etc. can be cooked in a single cooking by putting a two-stage cooking dish in the heating chamber. However, grill pans cannot be used for the reasons described above. Therefore, the producer supplies a total of three dishes, two oven dishes for oven cooking and one grill dish for grill cooking, as accessories, and for the user, the accessory dishes are stored. There was annoyance. In addition, when the high-frequency heating cooker was released, it was packed in a state where two oven dishes and one grill dish were stored, which had the problem of increasing the product weight and increasing the burden on logistics. .

  This invention solves the said conventional subject, and provides the high frequency heating apparatus provided with the cooking utensil which can be used also at the time of oven cooking by reexamining the dimensional relationship of a bank part and a groove part. Objective.

In order to solve the above conventional problems, the high frequency heating cooker of the present invention, a heating element which generates heat by irradiation with a microwave, first and second bank having a mounting surface for mounting the food And a cooking chamber having a groove provided between the first and second banks, a heating chamber disposed in the main body and provided with a door on the front surface, and a high frequency supplied to the heating chamber A high-frequency generator having a magnetron for generating heat, a support projection provided on the left and right side walls of the heating chamber for supporting the cooking utensil, and a hot air from a convection heater unit provided on the rear wall of the heating chamber. A hot air blowing port formed by a punching hole for blowing air into the heating chamber, a holder for preventing contact with the heating chamber wall surface on the end surface of the cooking utensil, and the support protrusion in the front-rear direction Or horizontally Multiple disposed vertically, the distance that float the cookware from the support protrusions is obtained by less than the diameter of the hole of the hot air blower opening.

With this configuration, while maintaining the degreasing performance in grill cooking, oven cooking, for example, dents in cookies and butter roll dough can be suppressed, so it can be used during both grill cooking and oven cooking. A high-frequency cooking device provided with a cooking utensil as a cooking dish can be provided.

  Since the high frequency heating cooker of the present invention can provide a cooking utensil that can be used even when cooking in an oven, the attached cooking plate can be reduced by one as a high frequency heating cooker, and the weight at the time of product packaging Can be reduced and cost can be reduced.

The perspective view which shows the external appearance of the high frequency heating cooker in Embodiment 1 of this invention. The perspective view which shows the door open state of the heating cooker AA sectional view shown in FIG. BB cross section shown in FIG. Perspective view of bottom plate of same cooking device A perspective view showing a bottom machine room of the heating cooker The perspective view which shows the state which removed the cover of the bottom machine room of the heating cooker The perspective view which shows the downward view of the state which removed the bottom plate of the heating cooker The exploded perspective view which shows the structure of the convection heater unit of the heating cooker Left perspective view of the cooking device with the case removed A perspective view of the right side rear view with the case of the cooking device removed. The top view of the grill pan which is a cooking appliance concerning an embodiment of the invention Perspective view of the grill pan Side sectional view of the grill pan Top view of conventional grill pan Perspective view of the grill pan Side sectional view of the grill pan

A first aspect of the present invention is a heating element which generates heat by irradiation with microwaves, the first and second bank portion having a mounting surface for placing the food, of the first and second bank portion A cooking chamber having a groove portion provided therebetween, a heating chamber disposed in the main body and provided with a door on the front surface, a high frequency generation unit including a magnetron for generating a high frequency to be supplied to the heating chamber, A support protrusion provided on the left and right side walls of the heating chamber for supporting the cooking utensil on which food is placed, and a punching hole for blowing hot air from a convection heater unit provided on the rear wall of the heating chamber into the heating chamber. A hot air blowing port, a holder for preventing contact with the wall surface of the heating chamber on the end surface of the cooking utensil, and a plurality of the support protrusions provided horizontally in the front-rear direction and in the vertical direction, From the above The distance that float the physical device, is obtained by less than the diameter of the hole of the hot air blower opening.

  As a result, one grill plate as a cooking utensil can be used not only for grill cooking but also for cooking in an oven. The number of parts and the weight of the product can be reduced.

In addition, the difference between the position of the oven dish when the oven dish is placed on the support protrusions provided on the left and right side walls of the heating chamber and the position when the grill dish is placed is determined as the punch hole of the hot air blower hole on the rear surface of the heating chamber. Therefore, even when the user makes a mistake in the shelf position, it is difficult to receive a difference in hot air, and stable cooking performance can be realized.

  In a second aspect of the invention, in particular, in the first aspect of the invention, the depth of the groove is shallowest in the vicinity of the center of the bank and deepens toward the periphery.

With this configuration, an inclination is formed in the groove portion, and the fat that exudes from the food can be easily discharged. Therefore, a cooking utensil that performs efficient degreasing can be realized, and the cooking of the grill plate in the high-frequency heating cooker can be realized. The performance can be improved.

  In a third aspect of the invention, in particular, in the second aspect of the invention, the bank portion is arranged in an oblique direction with respect to the surrounding four sides.

  With this configuration, it is possible to use all four sides as the direction of the oil flow by removing the fat, so that the oil that exudes from the food can be efficiently flowed to the nearby side, so that the performance of cooking on the grill plate can be improved. Can do.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is a perspective view showing an appearance of a high-frequency heating cooker according to Embodiment 1 of the present invention, FIG. 2 is a perspective view of a state in which a door of the high-frequency heating cooker is opened, and FIG. 3 is a cross-sectional view taken along line AA shown in FIG. 4 is a BB cross-sectional view shown in FIG. 1, FIG. 5 is a perspective view showing a bottom plate, FIG. 6 is a perspective view showing a bottom machine room of a high-frequency heating cooker, and FIG. 7 is a state where an inverter board and a control board cover are removed. FIG. 8 is a perspective view of the bottom view of the high-frequency heating cooker with the bottom plate removed, and FIG. 9 is an exploded perspective view of the rear portion of the high-frequency heating cooker showing the configuration of the convection heater unit. 10 is a perspective view showing the left side and the back side of the high-frequency heating cooker with the case removed, FIG. 11 is a perspective view showing the right side and the back side of the high-frequency heating cooker with the case removed, and FIG. The top view of the grill pan concerning the embodiment of the figure, figure 3 is a perspective view of the grill plate, FIG. 14 is a side sectional view of the grill plate, FIG. 15 is a top view of a conventional grill plate, FIG. 16 is a perspective view of the grill plate, and FIG. FIG.

<1> Configuration of High Frequency Heating Cooker The high frequency heating cooker according to the present embodiment has a high frequency (microwave), radiant heat, hot air, and steam in a heating chamber that has an opening on the front and accommodates an object to be heated. Is a high-frequency cooking device that heats food that is an object to be heated, a high-frequency generator 400 that includes a magnetron that generates high-frequency and supplies high-frequency to the heating chamber, and radiant heat An upper heater unit 500 for heating, a convection heater unit 600 for circulating hot air in the heating chamber, and a steam generating unit 700 for generating steam in the heating chamber are provided.

  In the present embodiment, the following description will be given with the side of the main body 100 having the door 300 as the front, the right side from the front toward the rear as the right, and the left from the front toward the main body 100 as the left. .

  In the main body 100, a heating chamber 200 having an opening on the front surface and a flange on the front periphery of the opening is disposed in the center. The outer plate is configured by the bottom plate 120 disposed below the rear plate 130 and the rear plate 130 disposed on the back surface of the heating chamber 200. A gap is secured between the outer periphery of the heating chamber 200 and the outer shell. The gap acts as a heat insulating space, and each function for driving the high-frequency heating cooker is disposed in the gap.

  As shown in FIGS. 1 and 2, a door 300 with a projection window that opens and closes the opening of the heating chamber 200 is installed on the front surface of the main body 100. The lower end of the door 300 is pivotally supported by a lower end portion of the main body 100 via a hinge, and is configured to be rotatable in the vertical direction. An operation unit 310 is provided on the right side of the front surface of the door 300.

Further, on the lower right side of the door 300, a water supply tank 730 for storing water to be supplied to the steam generating unit 700 is movably attached in the front-rear direction and is detachably installed. And on the lower left side of the door 300, a drainage tank 202 for storing condensed water condensed in the heating chamber 200 is detachably installed.

  The right side wall 210 and the left side wall 220 of the heating chamber 200 have upper surfaces to support a square plate (oven plate) that is a cooking utensil used for oven cooking and a grill pan that is a cooking utensil used for grill cooking. The horizontal support protrusions 201 are provided horizontally in the front-rear direction and in a plurality of stages (three stages in the present embodiment) in the vertical direction, so that a square dish and a grill dish on which an object to be heated is placed are optimal for cooking. It can be installed at various positions.

  As shown in FIG. 3, an infrared sensor 150 that detects the temperature of the object to be heated is installed in the upper center of the right side wall 210 of the heating chamber 200. Moreover, the interior lamp 151 comprised by LED (light emitting diode) is installed in the upper part and center part of the right side wall, and the inside of the heating chamber 200 is illuminated.

  As shown in FIG. 4, an outdoor air intake port 221 in which a plurality of circular punch holes are disposed over a substantially rectangular area is provided at the lower front portion of the left side wall 220 of the heating chamber 200. Low-temperature, low-humidity air outside the heating chamber 200 is introduced into the heating chamber 200 from the outside air inlet 221 and merged with the ventilation of the circulation fan to blow low-humidity air along the inner surface of the door 300. Thus, condensation on the glass surface of the door 300 can be suppressed.

  In addition, a steam outlet 701 for ejecting steam from the steam generation unit 700 to the heating chamber 200 is disposed at the upper center of the left side wall 220 of the heating chamber 200.

  The top surface 230 of the heating chamber 200 is formed with a recessed portion 231 that is recessed upward, and the upper heater unit 500 is installed inside the recessed portion 231. The upper heater unit 500 is provided with three heaters in the left-right direction. These heaters are provided with two bar-shaped miraclon heaters 510 in the front and rear, and one bar-shaped argon heater 520 arranged in the center between the miraclon heaters 510. These heaters mainly emit infrared rays and directly heat the object to be heated accommodated in the heating chamber 200 with radiant heat. The upper portion of the recessed portion 231 where the upper heater unit 500 is installed is covered with a heat insulating material 232.

  A thermistor 152 that detects the temperature in the heating chamber 200 is installed at the right rear portion of the top surface 230 of the heating chamber 200.

  FIG. 9 is an exploded perspective view showing the configuration of the convection heater unit.

  A convection heater unit 600 that circulates hot air in the heating chamber 200 is installed on the rear wall 240 of the heating chamber 200.

  In the center of the rear wall 240 of the heating chamber 200, a circulation intake port 241 in which a plurality of circular punch holes are formed over a substantially hexagonal region is provided. A hot air blowing port 242 in which a plurality of circular punch holes are formed over a substantially rectangular area is provided at the peripheral edge of the rear wall 240. Air in the heating chamber 200 is sucked from the circulation intake port 241 and hot air is blown into the heating chamber 200 from the blower port 242.

A fan case 610 made of a metal material is disposed outside the rear wall 240. The fan case 610 is formed with a recessed portion 611 that is recessed outward by drawing, and a circulation fan 620 and a sheathed heater 630 are installed in a space formed by the rear wall 240 and the recessed portion 611. Circulation fan 620 is a left-rotation sirocco type fan, and a sheathed heater 630 formed in a spiral shape is disposed so as to surround the outer periphery of circulation fan 620.

  On the rear surface of the fan case 610, a motor support 640 formed of a metal material in a recessed shape is installed. A circulation motor 650 for driving the circulation fan 620 is installed on the rear surface of the motor support 640, and the circulation fan 620 is fastened to the rotation shaft of the circulation motor 650.

  A rear plate 130 is disposed behind the convection heater unit 600 with a gap, and the circulation motor 650 is cooled by the air blown through the gap.

  As shown in FIG. 10, a steam generation unit 700 is installed on the rear upper portion outside the left side wall 220 of the heating chamber 200. The steam generation unit 700 includes a tank 710 formed by aluminum die casting and a sheathed heater 720 installed inside the tank 710. Water supplied into the tank 710 from the water supply port of the tank 710 is heated by the sheathed heater 720 to generate steam, and the steam is ejected into the heating chamber 200 from the steam outlet 701. Water used in the steam generation unit 700 is supplied from a water supply tank 730 installed at the lower front of the main body 100 via a water supply pump.

  As shown in FIGS. 3 and 4, a recessed portion 251 is formed at the center of the bottom surface 250 of the heating chamber 200. On the upper surface side and the lower surface side of the recessed portion 251, a high frequency generator 400 that radiates high frequency (microwave) is installed. In the high frequency generator 400, a rotating antenna 410 that radiates high frequency into the heating chamber 200 is installed on the upper surface side of the recessed portion 251.

  A magnetron 420 that generates a high frequency and an antenna motor 411 that rotates the rotating antenna 410 are installed on the lower surface side of the recessed portion 251. The high frequency generated in the magnetron 420 is transmitted from the magnetron antenna 421 to the rotating antenna 410 via a waveguide (not shown), and is radiated from the rotating antenna 410 into the heating chamber 200.

  By providing the rotating antenna 410, the high frequency from one magnetron 420 is distributed and radiated over a wide range, and by changing the angle of the rotating antenna 410, directing the high frequency radiation, cooking It is configured to be able to emit high frequency radiation that is optimal for the above.

  The upper surface of the recessed portion 251 is covered with a ceramic bottom plate 252 capable of transmitting high frequencies, and the rotating antenna 410 is always hidden from the heating chamber 200 side.

  The high frequency radiated from the high frequency generator 400 is mainly used to directly heat the object to be heated. However, by radiating the high frequency to the grill pan 1, the grill pan 1 is heated to generate heat. Used mainly to heat the lower surface.

  As shown in FIGS. 6 and 7, the bottom plate 120 installed at the lower part of the main body 100 is provided with a drive mechanism for driving each function of the high-frequency heating cooker, a control mechanism, and the like. A machine room is formed in the space between the bottom surface 250 and the bottom plate 120. In the machine room, a high-frequency generator 400 and a controller, which are central functions of the high-frequency cooking device, are arranged.

As shown in FIG. 5, the bottom plate 120 is formed by press-working a galvanized steel plate, and the basic shape is formed in a rectangular shallow box shape having a rising portion around it. The bottom plate 120 is processed with a plurality of recessed portions 121 and openings. In particular, a plurality of circular punch holes are formed on the front and lower surfaces of the central portion of the recessed portion 120 of the bottom plate 120 as cooling inlets 122 for sucking cooling air.

  As shown in FIG. 6, a cooling fan unit 800 is installed on the left side of the center of the front portion of the main body bottom plate to cool the portions of the heating cooking including the heat generating member. A plurality of circular punch holes are provided as cooling air inlets 122 in the bottom plate 120 of the portion facing the cooling fan unit 800.

  In addition, a fan cover 801 having a hollow portion formed therein is installed above the cooling fan unit 800, and the outside air sucked from the cooling air inlet 122 formed in the bottom plate 120 is transferred to the cooling fan unit 800. It is configured to blow air to fan intake ports 841 and 851 provided on both upper and lower surfaces (details of the cooling fan unit will be described later).

  An inverter board 900 is disposed at the center of the rear part of the bottom plate 120 behind the main discharge port 811 of the cooling fan unit 800. An inverter 910 that drives the magnetron 420 is installed on the inverter board 900. An inverter board cover 911 is installed above the inverter board 900, and hollow portions are formed above and below the inverter board 900. Then, cooling air is blown from the cooling fan unit 800 to the upper and lower cavities to cool the inverter board. A rear communication port 912 that discharges a part of the air flow toward the rear upper part is provided at the rear part of the inverter board cover 911.

  A control board 920 is disposed on the right side of the bottom plate 120, and a control board cover 921 is installed above the control board 920, and hollow portions are formed above and below the control board 920. And it is the structure which cools by sending the cold wind from the cooling fan unit 800 to the upper and lower cavities. On the right rear side of the control board cover 921, a right communication port 623 that discharges the blown cold air toward the upper side of the right cavity is provided.

  FIG. 7 is a perspective view showing a state in which the inverter board cover 911 and the control board cover 921 are removed. The inverter board 900 is provided with an inverter 910, a cooling heat sink, and the like, and the control board 920 includes a micro board. Circuit components including a computer are arranged.

  As shown in FIG. 6, a magnetron 420 of the high-frequency generator 400 is disposed behind the sub discharge port 812 of the cooling fan unit 800, and cool air is blown from the cooling fan unit 800 to cool the magnetron 420. It has become.

  A water supply tank 730 for storing water to be supplied to the steam generation unit 700 is installed on the lower surface on the right side of the front part of the bottom plate 120. The water supply tank 730 is moved in the front-rear direction from the front surface of the main body 100. Therefore, the structure is detachable. The water supply tank 730 is made of a transparent resin material and is molded into a substantially rectangular parallelepiped having a low height. The water supply tank 730 has a water supply port on the top surface and a connection port on the back surface. By installing the water supply tank 730 at a predetermined position from the front surface of the main body 100, the connection port is connected to the water supply connection section of the main body 100, and water is supplied to the tank 710 of the steam generation section 700 through the water supply pump.

  As shown in FIGS. 1 and 2, a door 300 that closes the opening of the heating chamber 200 is pivotally supported on the front surface of the main body 100 so as to be freely opened and closed.

The basic housing of the door 300 is formed of a door frame 301 that is a rectangular metal frame,
An opening is provided in the upper part of the central portion of the door frame 301, and an operation unit 310 is formed on the right side of the opening.

  A glass plate 302 is installed on the front surface of the door frame 301 so as to cover substantially the entire area, and a door decoration 303 is installed on the periphery of the glass plate 302. On the right side of the glass plate 302, an operation unit 310 is disposed. The operation unit 310 includes a touch panel type liquid crystal 311 that performs the operation and display as a whole, a “return button” 312 that returns the operation, a “cancel button” 313 that performs the cancel operation, and a “start button” 314 that starts cooking. It has. Note that all displays associated with the operation are displayed on the liquid crystal 311.

  In addition, an opening / closing handle 304 is provided at the upper front portion of the door.

  On the inner surface side of the door frame 301, a metal radio wave seal plate (not shown) and a glass plate 305 are installed to prevent microwave leakage from the opening of the door frame 301. Is provided with a decorative cover 306.

<2> Configuration of Grill Plate FIG. 12 is a top view of the grill plate as the cooking utensil according to the first embodiment of the present invention, FIG. 13 is a perspective view of the grill plate, and FIG. FIG. 14B is a DD cross-sectional view in FIG. 12, and FIG. 14C is a partial cross-sectional view of the E portion in FIG.

  As shown in FIGS. 12 to 14, the grill pan as the cooking utensil according to the present embodiment has a substantially rectangular shape as a whole when viewed from above, and has a bowl-like shape around the grill pan. The peripheral groove 3 is provided inside the edge 2 and the edge 2.

  A plurality of elongated and thin rectangular parallelepiped banks 11, 21 with rounded corners are arranged in an oblique direction inside the peripheral groove 3, and a groove 30 is formed between two adjacent banks 11, 21. Provided. Each bank portion 11, 21 has a length from one side of the peripheral groove 3 to the opposite or adjacent side.

  Thus, the inner portion of the peripheral groove 3 has a corrugated shape in which the bank portions 11 and 21 and the groove portion 30 are alternately arranged. The bottom of the peripheral groove 3 is lower than the bottom of the groove portion 30.

  Hereinafter, the bank portions 11 and 21 and the groove portion 30 will be described.

  On the top surfaces of the bank portions 11 and 21, there are provided substantially planar mounting surfaces 12 and 22 on which food is placed, respectively. On the back surfaces of the bank portions 11 and 21 and the groove portion 30, a heating element 4 which is a radio wave absorber mainly composed of ferrite is formed.

  When the grill pan 1 having the above-described configuration is installed in the heating chamber 200 of the high-frequency heating cooker and the microwave is applied to the back surface of the grill pan 1, the heating element 4 generates heat and is transmitted from the mounting surfaces 12 and 22. With heat, food can be cooked.

  The grill pan 1 according to the present embodiment is intended to store fat that exudes from food during cooking in the peripheral groove 3 via the groove portion 30.

  Up to here, it is the same as the conventional grill pan 1. Hereinafter, the characteristic part of the grill pan 1 concerning this Embodiment is demonstrated.

As shown in FIG. 14B, the width of the groove 30 between the banks 11 and 21 is 8 mm or less, and the depth of the bottom surface of the groove 30 and the placement surfaces 12 and 22 on which food is placed. The maximum dimension was 4 mm (depth dimension 4 mm or less). The basis for setting the width dimension of 8 mm is that when the butter roll is cooked with the grill pan 1 having the conventional configuration, the dough is deformed so that it is distorted, but has occurred at a location where the width dimension of the groove is 10 mm or more. Therefore, in the grill pan 1 of the high-frequency heating cooker according to the present invention, the design data is modeled so that the width of the groove 30 is 8 mm or less.

  Setting the depth of the groove 30 to be 4 mm or less is a consideration from the viewpoint of manufacturing. The grill pan 1 creates a squeezed shape by pressing a functional pre-coated steel plate. In the case where the width dimension of the groove 30 is 8 mm, even when a steel sheet having a high drawability is used, when the depth dimension is larger than 4 mm, cracks are generated in the bank parts 11 and 21. The depth dimension was set to 4 mm with the aim of improving the degreasing performance as much as possible without causing cracks.

  In addition, since the grill pan 1 has a squeezed shape formed by pressing a functional pre-coated steel plate, if the structure is in direct contact with the wall surface of the heating chamber 200, electric field concentration on the contact surface when irradiated with microwaves. Therefore, the holding parts 5 made of resin (in this embodiment, PPS resin is used) are provided on the left and right sides of the grill pan 1. The holding unit 5 used in the present embodiment has a diameter of the punch hole of the hot air blowing port 242 on the rear surface of the heating chamber (the heating in the present embodiment) as a separation distance from the support protrusion 201 of the cooking dish 1 on the wall surface of the heating chamber 200. In the chamber 200, it was set to 2.7 mm which was smaller than φ3.6 mm).

  With these features, the following effects can be obtained.

  By setting the width dimension of the groove part 30 between the bank parts 11 and 21 on which the food is placed to 8 mm or less, it can be used not only for grill cooking but also for oven cooking such as cooking of cookies and butter rolls.

  Since the groove portion 30 becomes deeper as it gets closer to the peripheral groove 3 from near the center of the grill pan 1, the soft food is less likely to come into contact with the bottom portion of the groove portion 30 as it gets closer to the peripheral groove 3. Then, it is guided to the peripheral groove 3 along the inclination of the groove portion 30. Therefore, since the fat which accumulates between food and the groove part 30 and inhibits heat conduction can be removed, sufficient baking color can be given also to food with much fat.

  The separation distance of the holding part 5 of the grill pan 1 is set to 2.7 mm, which is smaller than the diameter φ3.6 mm of the punch hole of the hot air blowing port 242, so that the grill pan 1 is the upper stage and the oven dish is the lower stage when cooking in two stages. Even when the oven dish is arranged in the upper stage and the grill dish 1 is arranged in the lower stage, there is no shift in the height direction of these dishes as much as one row of the hot air blowing ports 242. Can be less affected by the hot air blown from. For this reason, even if the user starts cooking with the wrong shelf position, the finish does not change significantly.

  As described above, the grill pan as the cooking utensil according to the present embodiment can be used in either case of grill cooking or oven cooking. Therefore, the high frequency heating cooker using this cooking utensil is a grill pan. Two-stage cooking is possible by attaching one oven dish for one and two-stage cooking. Therefore, one oven dish can be abolished compared with the conventional high-frequency cooking device. The oven dish is made of a steel plate for enamel and can achieve a weight reduction of about 850 g, thereby reducing the physical burden.

In the high-frequency heating cooker of the present invention, it is recommended that the grill pan 1 is installed on the upper support protrusion 201 when cooking in the oven. This is a combination of heating by hot air circulation arranged on the rear surface and heating by a radiant heater arranged on the upper surface when cooking in the oven. Since the heat capacity is deprived, the temperature rise of the food is delayed, so that the heating loss of the food can be minimized by installing the grill pan 1 on the side close to the upper heater unit 500 that is a radiant heater.

  However, from the user's standpoint, it is possible to install the grill pan 1 on either the upper support protrusion 201 or the lower support protrusion 201. The difference in the height direction between the oven plate and the grill plate 1 in the heating chamber 200 is determined by the thickness dimension of the resin holding portion. In the present invention, since the thickness dimension is set to 2.7 mm which is smaller than the diameter φ3.6 mm of the punch hole of the hot air blowing port 242, even if the user misplaces the shelf position, The difference in influence can be reduced.

  As described above, the cooking utensil according to the present invention can be applied to a high-frequency cooking device such as a microwave oven. Since it is possible to reduce the number of accessory parts while ensuring the cooking performance of the upper model, it is possible to provide low-priced products to the user.

DESCRIPTION OF SYMBOLS 1 Grill pan 2 Edge 3 Perimeter groove 4 Heating element 5 Support part 11 Bank part (1st bank part)
12 Mounting surface 21 Bank part (second bank part)
22 Mounting surface 30 Groove 200 Heating chamber 242 Hot air blower 400 High frequency generator

Claims (3)

A heating element that generates heat upon microwave irradiation ;
A first and second bank portion having a mounting surface for placing the food,
A cooking utensil having a groove provided between the first and second banks,
A heating chamber arranged in the body and provided with a door on the front,
A high frequency generator having a magnetron for generating a high frequency to be supplied to the heating chamber;
A support protrusion for supporting the cooking utensil provided with food on the left and right side walls of the heating chamber;
A hot air blowing port formed in a punching hole for blowing hot air from a convection heater unit provided on the rear wall of the heating chamber into the heating chamber;
A holder is provided on the end face of the cooking utensil to prevent contact with the heating chamber wall surface,
A plurality of the support protrusions are provided horizontally in the front-rear direction and vertically.
The distance to float the cooking utensil from the support protrusion,
A high-frequency cooking device that is smaller than the diameter of the hole of the hot air blowing port . The high frequency cooking device according to claim 1 , wherein the depth of the groove is shallowest in the vicinity of the center of the bank and deepens toward the periphery. The high-frequency cooking device according to claim 1 or 2 , wherein the cookware has the bank portion disposed in an oblique direction with respect to four surrounding sides.