JP2004049821A - Food tray for high frequency heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a food tray for a high frequency heating cooker which can solve issues of heavy weight to obstruct carrying and high cost by using expensive heat resistant materials for requirement of a conventional lid which is used for the food tray with an exothermic body to absorb micro-waves to generate heat and is formed with a material bearable agaisnt heat by the exothermic body. <P>SOLUTION: A square range grill tray (food tray) 6a to carry food and to be housed in the heating chamber of a high frequency heating cooker is equipped with an exothermic body 9 to absorb microwaves to generate heat to slightly burn the food on the food placing surface (food placing part) 11, and a lid 10 to come into contact with a part without placing the exothermic body 9 and to cover the food on the square range grill tray 6a. <P>COPYRIGHT: (C)2004,JPO

Description

TECHNICAL FIELD OF THE INVENTION
The present invention relates to a food placing plate for a high frequency heating cooker having a food placing table.
[Prior art]
Conventionally, this type of invention has been described in, for example, Japanese Patent Application Laid-Open No. Hei 1-204386.
In this device, a layer of a heating element that absorbs microwaves and generates heat is formed on a turntable that becomes a cooking tray of a microwave oven, and the turntable is made of a microwave transmitting material such as transparent glass or heat-resistant plastic. It is configured to cover the food with the lid to be formed.
By adopting this configuration, that is, a configuration in which the food placed on the turntable is covered with the lid, there is an effect that the useful component in the food is dissipated or moisture is prevented from leaking.
[Problems to be solved by the invention]
However, the above-mentioned lid is placed and covered on a heating element formed on the turntable. The heating element of the turntable rises to a very high temperature for the purpose of browning food. Therefore, it is necessary to form the lid with a material that can withstand the heat of the heating element, which increases the weight, hinders portability, requires the use of expensive heat-resistant materials, and raises costs. Was.
The present invention has been made to solve such a problem.
[Means for Solving the Problems]
The food placing plate for the high-frequency heating cooker according to the present invention is a food placing plate for placing food and storing the food in the heating chamber of the high-frequency heating cooker, and is disposed on the food placeable portion of the food placing plate. And a heating element that absorbs microwaves to generate heat and browns the food, and a lid that contacts a part where the heating element is not arranged and covers the food on the food mounting plate. Features.
Further, the food placing plate is provided with a groove around the heating element, and the lid is brought into contact with the groove.
The lid has a hanging piece extending downward at an end thereof and a horizontal piece extending horizontally, and the lid abuts the horizontal piece on a peripheral edge of the food placing dish. And contacting the hanging piece with the food placing plate and placing the hanging piece on the food placing plate.
Further, the lid is provided with a protruding portion protruding downward at a position on the inner surface facing the inside of the outer periphery of the heating element.
Furthermore, the lid is provided with a recessed portion in which a portion facing a corner of the food placing plate is recessed.
BEST MODE FOR CARRYING OUT THE INVENTION
In FIG. 1, reference numeral 1 denotes a microwave oven main body as an embodiment of a high-frequency heating cooker, 2 denotes a heating chamber for storing food, 3 denotes a door for opening and closing a front opening of the heating chamber 2, and 4 denotes a heating condition for the microwave oven 1. This is a control panel for performing settings and instructions for starting heating.
The heating chamber 2 includes an upper surface 2a, a lower surface 2b, a left side surface 2c, a right side surface 2d, and a rear surface 2e. On the lower surface 2b, a rotating antenna for diffusing a microwave supplied from a magnetron (not shown) is disposed. In addition, a food table 5 that transmits microwaves radiated from the rotating antenna is arranged. That is, the supply of the microwave into the heating chamber 2 is performed through the food placing table 5.
Reference numeral 6 denotes a square plate on which food is placed, 7 denotes an upper rail for placing the square plate 6 disposed above the left side surface 2c and the right side surface 2d of the heating chamber 2, and 8 denotes the left side surface 2c and the right side of the heating chamber 2 similarly. This is a lower rail for placing the square dish 6 disposed below the surface 2d.
As shown in FIG. 2, the square plate 6 includes a microwave oven plate 6 a corresponding to a food placing plate in which a heating element 9 that absorbs microwaves and generates heat is disposed on a food placing surface, and the heating element 9. There is a metal square dish 6b in which is not arranged. The user uses the square plate 6 properly according to the desired cooking.
Among the square dishes 6, the range grilled square dish 6a is used for cooking that browns the surface of the food and reduces the cooking time by microwave heating the inside of the food, for example, fish grilling. In addition to cooking, the lid 10 is also used for the stove 6a for browning the surface and further performing steam cooking, for example, to widen the range of cooking such as fried gyoza.
The cooker 6a is entirely formed of ceramic, and has a groove 12 formed around a food mounting surface 11 for collecting extra oil and the like coming out of food. 11 are arranged in a slightly smaller area. The heating element 9 is formed, for example, by coating a metal oxide film on an appropriate position on the back surface of the cooker 6a.
In addition, the cooker 6a is not limited to ceramic, and may have a configuration in which a ceramic plate on which the heating element 9 is formed is attached to a metal having good heat conductivity such as aluminum.
As shown in FIG. 4, the lid 10 comes into contact with the groove 12 of the stove 6a and covers the food placed on the food placement surface 11. Therefore, since the lid 10 comes into contact with the portion of the cooker 6a where the heating element 9 is not located, the lid 10 does not directly receive the heat of the heating element 9. With this configuration, it is not necessary to use a material having a low heat-resistant temperature instead of a material having a high heat-resistant temperature, for example, an expensive heat-resistant glass, and it is possible to use an inexpensive resin having a low heat-resistant temperature, thereby reducing the cost. . Further, when cooking fried gyoza, etc., water is stored in the groove 12 of the stove pan 6a, and the lid 10 is brought into contact with the water, so that the confidentiality becomes higher and good steaming cooking can be realized. is there.
Reference numeral 13 denotes a position on the upper surface 2a of the heating chamber 2 which does not become an obstacle when food is stored in the heating chamber 2, for example, a position in the vicinity of the right side surface 2d and the rear surface 2e, that is, the inside of the heating chamber 2 provided at the right rear portion. The oven thermistor 14 for detecting the temperature is placed only in the vicinity of the cooked range oven 6a, for example, the cooked range cooker 6a is placed only on the mounting lower rail 8 when the cooked range cooker 6a is stored in the heating chamber 2. If not, a dish temperature detecting thermistor for detecting the temperature of the cooker 6a disposed on the left side face 2c or the right side face 2d slightly above the lower rail 8 for mounting.
By disposing the thermistor 14 for detecting the plate temperature in the vicinity of the stove 6a, even if the thickness of the heating element 9 or the temperature inside the refrigerator at the beginning of heating is varied, the variation in the reached temperature is suppressed. Thus, accurate cooking can be performed.
FIG. 5 shows another embodiment of the lid 10 described above. The material of the lid 10 is the same, but the shape is different.
The lid 10 has a hanging piece 102 extending downward over the entire periphery of the lower end 101 and a horizontal piece 103 extending in the horizontal direction. When the lid 10 is put on the cooker 6a, the hanging piece 102 of the cover 10 abuts against the side wall 121 of the cooker 6a, and the upper end of the side wall 121 of the cooker 6a, that is, the range The horizontal piece 103 of the lid 10 is placed in contact with the edge 122 of the peripheral edge of the grilled dish 6a.
The presence of the above-mentioned hanging piece 102 and horizontal piece 103 enhances the confidentiality of the space formed by the stove 6a and the lid 10, so that steam cooking can be realized.
The lid 10 has a handle 104 at the top. As shown in FIG. 6, the handle 104 has a hollow inside, and has a curved surface shape so that the corner portion 105 of the ceiling can be easily cleaned. Further, the flange 106 is provided so as to be directed horizontally outward from the ceiling of the handle 104 so that it can be easily grasped even by a hand fitted with mittens or the like. A step 107 swelled upward from the flange 106 is provided. By adopting such a shape, the corner portion 105 can be easily formed into a curved surface shape, and in addition, when the lid 10 is formed by molding, the occurrence of sink marks generated in the corner portion 105 can be suppressed from occurring.
Further, as shown in FIG. 7, the outer shape of the lid 10 is provided with a recessed portion 108 which is recessed near the corner of the stove 6a. This is because even when the lid 10 is put on the cooker 6a, the vicinity of the corner of the cooker 6a is depressed, so that the cooker 6a can be firmly held by the hand with the mittens 109 fitted thereon.
Further, as shown in FIGS. 8 and 9, the inner surface of the lid 10 is downwardly positioned at a position facing the inside of the heating element 9 of the stove 6a when placed on the stove 6a. The protruding convex part 110 is arranged.
On the back surface of the lid 10, steam generated from food is condensed and becomes water droplets and flows along the back surface of the lid 10. If the convex portion 110 does not exist on the back surface of the lid 10, it reaches the vicinity of the hanging piece 102. The heating element 9 does not exist in the vicinity of the side wall 121, the temperature is lower than that in the vicinity of the center of the cooker 6a, and water drops accumulate between the hanging piece 102 and the side wall 121 of the cooker 6a. Will be. In this state, when the cooking is completed and the lid 10 is separated from the stove 6a, water drops attached to the hanging pieces 102 fall due to the vibration, and the floor of a kitchen or the like is wetted, and the user cleans the floor later. You will have to take time and effort.
On the other hand, due to the presence of the convex portion 110, water droplets condensed on the back surface of the lid 10 collect near the convex portion 110 and drop on the heating element 9 as appropriate. The water droplets dropped on the heating element 9 evaporate again, thereby contributing to steam cooking, and the finish of cooking can be improved. Further, since the water droplets reaching the hanging piece 102 are water droplets below the convex portion 110, even if the lid 10 is slightly removed from the cooker 6a, the water droplets do not accumulate enough to drop. In particular, since the vapor emanating from the food rises upward, more dew is condensed on the handle 104 side than the convex portion 110, so that water droplets reaching the hanging piece 102 are further reduced.
Further, an anti-fog treatment such as a photocatalyst is performed on the back surface of the lid 10 so that water droplets accumulated on the back surface of the lid 10 can be reused as water vapor.
In addition, it is good also as a structure which does not provide unevenness | corrugation, such as a groove | channel, so that the back surface of the cover 10 may be easily cleaned.
In FIG. 10, reference numeral 15 denotes a hot air supply device disposed behind the rear surface 2 e of the heating chamber 2, which internally includes a circulating fan 16 and a hot air heater 18 disposed above and below, and operates the rear surface 2 e by the operation of the circulating fan 16. After the air in the heating chamber 2 is sucked from the central through hole 17 and heated by the hot air heater 18, hot air is blown into the heating chamber 2 from the upper outlet 19 and the lower outlet 20 provided at the upper and lower portions of the rear surface 2e, The food placed on the square plate 6 is heated by hot air.
Reference numeral 21 denotes a rotary antenna storage chamber formed by swelling the lower surface 2b of the heating chamber 2 below the food placing table 5 downward, and 22 is rotatably stored in the rotary antenna storage chamber and rotates microwaves. A rotating antenna that radiates and supplies microwaves into the heating chamber 2 via the food mounting table 5, and a rotating antenna 23 through which the rotating shaft of the rotating antenna 22 penetrates, supplies microwaves to the rotating antenna 22 via the rotating shaft. The waveguide 24 is an antenna motor mounted on a rotating shaft penetrating the waveguide 23 to rotate the rotary antenna 22, and 25 is a flat heater fixed to the outer wall surface on the upper surface 2 a of the heating chamber 2.
Note that the magnetron 34 that generates microwaves is attached to the waveguide 23. That is, the magnetron 34 supplies the microwave into the heating chamber 2 via the waveguide 23 and the rotating antenna 22.
As described above, the square plate 6 housed in the heating chamber 2 includes a microwave oven plate 6a and a metal square plate 6b. Use a microwave oven 6a to cook the food by using microwaves, and normally use a metal square 6b for oven cooking in which the food is heated by the flat heater 25 and the hot air supply device 15. I do. In particular, in order to heat more foods in the oven cooking, the metal square plate 6b can be placed on each of the placing upper rail 7 and the placing lower rail 8 of the heating chamber 2 to perform two-stage heating.
In order to realize the two-stage heating, the microwave oven 1 is provided with two metal square dishes 6b as accessories in addition to the microwave oven dish 6a. Providing two metal square dishes as accessories requires a corresponding storage space, which is troublesome for the user. Therefore, it is conceivable to substitute the microwave oven plate 6a as a square plate for oven cooking.
However, since the metal square dish 6b does not become hot itself, there is little possibility of thermal deformation and cracking even if the material thickness is reduced for reasons such as cost reduction. Since the temperature of the heating element 9 suddenly rises due to the wave heating, it is not possible to withstand this temperature change, and there is a risk of causing thermal deformation and cracking. For these reasons, the thickness of the metal square dish 6b is smaller than that of the microwave oven dish 6a. The same can be said for the metal square dish 6b as a ceramic square dish without the heating element 9 without being limited to the metal.
The hot air blown out from the upper and lower outlets 19 and 20 of the heating chamber 2 circulates through the heating chamber 2 although the temperature of the portions A and B in FIG. Then, the temperature of the hot air is lowered by the heat, and the temperature of the hot air in the portion C sucked into the hot air supply device 15 from the central through hole 17 is low. Therefore, the square plate placed on the upper portion is hardly heated, and the square plate placed on the lower portion is configured to be more easily heated than the upper plate.
In such a hot air circulation, a thin square plate, for example, a metal square plate 6b, on which the heating element 9 is not disposed, is placed on the upper rail 7 for placement and disposed on the upper side. In this case, a thick square plate on which the heating element 9 is disposed, for example, a stove square cooker 6a may be placed and placed on the placing lower rail 8. With this configuration, the thick square plate is heated more than the hot air of the portion B, and the thin square plate is heated because the hot air of the lower portion C easily transmits heat to the food on the square plate. This makes it easier to balance the heating of the square dishes placed on the upper and lower parts, and can achieve the same cooking progress on the upper and lower parts.
In the above-described hot air supply device 15, a configuration has been described in which hot air is blown into the heating chamber 2 from the upper and lower outlets 19 and 20 and is sucked through the central through hole 17, but the present invention is not limited to this. For example, in a hot air supply device in which a cross flow fan is disposed below the hot air supply device 15, hot air is blown from the lower outlet 20 into the heating chamber 2, and is sucked into the device 15 from the central through hole 17 and the upper outlet 19. As described above, since the temperature of the portion B in the heating chamber 2 is higher than that of the other portions, a thick square plate in which the heating element 9 is disposed, for example, By arranging the square plate 6a, it is needless to say that the heating of the square plates placed on the upper and lower portions can be balanced at the time of oven cooking, and the same progress of cooking can be realized in the upper and lower portions.
Also, in order to promote the heating of the lower cooker 6a, microwave heating is also carried out as needed during the cooking of the oven, so that the heating element 9 is heated by this microwave to heat the cooker 6a. Then, the balance between the heating with the square dish on the upper side may be taken.
Although the above-described metal square dish 6b has a planar structure, the present invention is not limited to this. For example, as shown in FIG. For example, by attaching a high thermal conductive radiating sheet 28 such as a PGS graphite sheet, the heat of the upper portion of the square dish is transmitted to the convex portion 27 so that the upper and lower surfaces of the food can be scorched even with little heating from below. May be.
As shown in FIG. 12, the door 3 is composed of a door cover 29 made of resin and a viewing window 30 arranged substantially at the center of the door cover 29. Further, a handle 31 is formed on the door cover 29 in a bag shape. Some are integrally formed.
In the case where the door cover 29 and the handle 31 are integrally formed, if the insertion part 31a of the hand formed in the bag shape of the handle 31 is deep, the sink 33 occurs in this part. In order to cover the sink marks 33, painting was conventionally performed.
Therefore, as shown in FIG. 13, the insertion portion 31 a of the hand of the handle 31 is not formed into a bag shape, that is, the handle 32 portion of the door cover 29 is simply expanded outward without using resin on the door body side. By doing so, since large sink marks do not occur, the need for painting is eliminated, and costs can be reduced. Further, the resin molding die for the door cover 29 also has a simple configuration.
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, it can suppress that the useful component in a foodstuff dissipates and a water | moisture content is escaped by covering a foodstuff with a lid and cooking. Further, since the lid comes into contact with a portion of the food placing plate where the heating element is not disposed, the lid can be formed of a material having a low heat-resistant temperature, the cost can be reduced, the weight can be reduced, and the usability can be improved. it can.
[Brief description of the drawings]
FIG. 1 is an external view of a microwave oven according to an embodiment of the present invention when a door is opened.
FIG. 2 is an external view of a square dish.
FIG. 3A is a top view of a cooker, and FIG. 3B is a cross-sectional view of the cooker.
FIG. 4A is an external view when a lid is brought into contact with a stove, and FIG. 4B is a cross-sectional view when the lid is brought into contact with a stove.
FIG. 5 (a) is an external view showing another embodiment of the lid of the stove, and FIG. 5 (b) is a sectional view when the lid is brought into contact with the cooker.
FIG. 6 is an enlarged sectional view of a main part of a handle of the lid in FIG. 5;
FIG. 7 is a view of the cooker with the lid covered as viewed from above.
FIG. 8 is a cross-sectional view of a main part showing a relationship between a convex portion on the back surface of a lid and a heating element of a stove.
FIG. 9 is a top perspective view showing the relationship between the convex portion on the back surface of the lid and the heating element of the stove.
FIG. 10 is a sectional view when the square dish is stored in a microwave oven.
FIGS. 11A and 11B show another embodiment of the oven grill, in which FIG. 11A is a top view and FIG. 11B is a sectional view.
FIG. 12 is an external view for explaining a conventional configuration of a door handle.
FIG. 13 is an external view for explaining a configuration of a door handle.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Microwave oven main body 2 Heating room 5 Food placing table 6a Cooker square dish 6b Metal square dish 9 Heating element 10 Cover 11 Food placing surface 12 Groove 15 Hot air supply device

Claims (5)

In a food placing plate on which food is placed and stored in a heating chamber of a high-frequency heating cooker, the food is placed in a food place where the food placing plate can be placed, absorbs microwaves, generates heat, and burns the food. A food placing plate for a high-frequency heating cooker, comprising: a heating element to be attached, and a lid that is in contact with a portion where the heating element is not disposed and covers food on the food placing plate. The food placing plate for a high frequency heating cooker according to claim 1, wherein the food placing plate is provided with a groove around the heating element, and the lid is brought into contact with the groove. The lid has a hanging piece extending downward at an end thereof and a horizontal piece extending horizontally, and the lid abuts the horizontal piece on a peripheral edge of the food placing dish, The food placing plate for a high frequency heating cooker according to claim 1, wherein the hanging piece is placed on the food placing plate by contacting the food placing plate. 4. The lid according to claim 1, wherein a downwardly protruding protrusion is provided at a position on an inner surface of the lid facing inward from an outer periphery of the heating element. 5. Food loading plate for high frequency heating cooker. The high frequency heating cooker according to any one of claims 1 to 4, wherein the lid is provided with a recessed portion formed by recessing a portion facing a corner of the food placing dish. Food loading plate.

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