JP4190475B2 - Microwave cooking container - Google Patents

Description

  The present invention relates to a cooking container for a microwave oven used in a microwave oven.

  Conventionally, a high-frequency permeable member containing water therein and a lower container placed on the upper end of the lower container so as to be separated from the bottom of the lower container, and a large number of small sized so that steam can pass therethrough. The food and drink support plate of the high-frequency shielding material in which the hole is formed, and the upper cover of the high-frequency shielding material that is configured to cover the lower container and in which the steam discharge hole is formed, the lower end of the upper cover being The lower end of the upper cover is placed on the upper end of the lower container so that a predetermined amount of high frequency is separated from the edge of the food and drink support plate by a predetermined interval and flows into the upper cover through the interval. A cooking container for a range is well known (see Patent Document 1).

  In such a configuration, steam can be generated using the microwaves irradiated to the inside of the heating chamber of the microwave oven.

  A container formed of a heat-resistant dielectric material that transmits microwaves and capable of storing water at the bottom thereof; and a lid formed of a heat-resistant dielectric material that transmits microwaves that detachably closes the opening of the container; And a heating element that is disposed on the outer surface of the bottom of the container and absorbs microwaves to generate heat, and a partition plate that is provided on the bottom of the container and has a large number of vent holes on which food is placed. Cooking containers are already known (see Patent Document 2).

With this configuration, the water stored in the bottom of the container is heated by the heat generated in the heating element, and steam is generated to moisten the food.
JP 2004-167208 A Japanese Utility Model Publication No. 48-34944

  However, since a heating element that absorbs microwaves and generates heat has a high temperature of 200 ° C. or higher, it is necessary to design the heat resistance temperature of the surrounding components high. In particular, if a food placing plate for placing food such as the partition plate described in Patent Document 2 is deformed, the food cannot be placed and the function of the container itself is lost.

  For this reason, it is conceivable that many ribs are provided so as not to deform, the thickness of the food placing plate is increased, or the material is made of metal. In such a configuration, the weight of the food placing plate is considered. Becomes heavy.

  The cooking container is required to be light in weight because it is lifted and stored in the heating chamber after the user places food, or removed from the heating chamber after cooking.

  The present invention has been made to solve such problems.

The present invention relates to a heat generating tray in which water is stored, a soot that is placed on the heat generating tray, allows steam generated from the water in the heat generating tray to pass therethrough, and allows food to be stored therein. An upper lid that covers the upper part and steams and cooks the food stored in the slat, and the heating tray includes a heating element that absorbs microwaves and generates heat, and a metal material that has the heating element disposed on the back surface. A heating flat portion, a lower end connected to the periphery of the heating flat portion, a lower peripheral wall provided at a predetermined height from the heat generating flat portion, and an upper end all around the lower peripheral wall. A stepped portion to be mounted; an upper peripheral wall connected to the periphery of the stepped portion and erected upward; a flange extending outward from the upper peripheral wall; and the heat generating portion provided in the flange When placing the tray in the heating chamber of the microwave oven, A resin guard discharge is prevented from occurring between the heating chamber, provided in the resin guard has a convex portion serving as a leg portion projecting downwardly, and also the grates is the food The food mounting surface having a through hole through which steam can pass and a leg portion that contacts the stepped portion over the entire circumference is provided at the lower periphery of the food mounting surface. The heat generating flat surface portion and the lower peripheral wall of the tray form a container portion that can be pooled in order to generate steam by being heated by the heat of the heating element, and the steam generated in the container portion is steamed and cooked. In order to perform, food is made to reach from the through hole of the stool placed on the stepped portion.

  The predetermined height of the step portion is a height corresponding to the amount of water supplied to the container portion.

  The heating tray is made of a metal material, and the heating element is made of ferrite.

  Further, the heat generating tray is formed to have substantially the same size as the lower surface of the heating chamber.

  According to the present invention, the weight of the cooking container can be reduced and the user-friendliness can be improved.

  1, 2, and 3, 1 is a microwave oven body covered with a frame 1 a, 2 is a heating chamber that stores food, 3 is a door that opens and closes the front opening of the heating chamber 2, and 4 is a microwave oven 1. It is a control panel having a setting input unit 4a for setting heating conditions and an instruction to start heating, and a display unit 4b for displaying setting conditions, remaining heating time, and the like.

  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.

  In addition, a food placing plate 5 made of a material that transmits microwaves, such as ceramic, is disposed on the lower surface 2b. Below the food placing plate 5, a recess 202 formed by pressing the bottom plate 201 of the heating chamber 2 downward is disposed, and a rotating antenna 203 is rotatably disposed in the recess 202.

  One end of the waveguide 204 is connected to the lower portion of the recess 203. Connected to the other end of the waveguide 204 is a magnetron 205 that oscillates microwaves and supplies the microwaves into the waveguide 204. A motor 206 is fixed to the lower portion on the other end side of the waveguide 204, and a rotating shaft 207 extending from the motor 206 passes through the waveguide 204 and is connected to the rotating antenna 203 in the recess 202. The antenna 203 is rotated.

  The magnetron 205 has its magnetron antenna 208 protruding inside the other end of the waveguide 204, and the microwave oscillated by the magnetron 205 is supplied from the magnetron antenna 208 into the waveguide 204.

  The microwave supplied into the waveguide 204 travels through the rotation shaft 207 of the motor 206 existing on one end side of the waveguide 204, reaches the rotating antenna 203, and rotates the rotating antenna 203 with the motor 206. The microwave is radiated into the recess 202. The microwave radiated into the recess 202 passes through the food placing table 5 and is supplied into the heating chamber 2.

  In FIG. 3, reference numeral 209 denotes a food such as tea-boiled steam placed in the container 7, for example, a steamed rice bowl, and 210 denotes an outer wall near the upper center of the right side surface 2 d of the heating chamber 2. The infrared sensor which detects the temperature distribution in the heating chamber 2 via is shown. The infrared sensor 210 is connected to a sensor motor 212, and detects the temperature distribution in the heating chamber 2 when the infrared sensor 210 swings by driving the sensor motor 212.

  6 is a square dish corresponding to the heating tray of the present invention having a heating element that absorbs microwaves and generates heat on the outer wall surface of the bottom, 7 is a steaming cooking slat placed on the square dish, 8 is A slatted lid that closes the top opening. 9 is 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 10 is also disposed slightly below the center of the left side surface 2c and the right side surface 2d of the heating chamber 2. A central rail 11 for placing the square pan 6, 11 is a lower rail for placing the square pan 6 disposed below the left side surface 2 c and the right side surface 2 d of the heating chamber 2. That is, when the square plate 6 is placed on the placement upper rail 9, the square plate 6 is arranged near the upper surface 2 a, and when the square plate 6 is placed on the placement central rail 10. The square plate 6 is disposed at an intermediate position between the center in the heating chamber 2 and the food placing plate 5, and when the square plate 6 is placed on the placing lower rail 11, the placing central rail 10. When the square plate 6 is placed on the opened door 3 and pushed into the heating chamber 3 at a slightly lower position, the height that is automatically guided onto the rail, that is, almost right above the food placing plate 5. 6 is arranged.

  4 to 9, the square plate 6, the saw plate 7 and the slat cover 8 store water in the square plate 6, and are heated by the heat of a heating element 15 described later to generate steam. The cooking container 12 of the present invention for steaming and cooking the food in the slatter 7 is configured.

First, the square dish 6 is formed of a metal material, for example, a material whose main component is aluminum, and a food placing part 13 for placing food on the bottom surface, and a food placed on the food placing part 13. A plurality of food-supporting convex portions 14 that store oil in a downward direction without coming into contact with food, and microwaves that are disposed on the outer wall surface of the food placement portion 13 while contacting with food. A heating element 15 made of ferrite that absorbs heat and generates heat, a lower peripheral wall 16 that extends upward from the periphery of the food placing portion 13, and extends outward from the cooking container 12 in a substantially horizontal direction from the upper end of the lower peripheral wall 16. A stepped portion 17, an upper peripheral wall 18 that is erected upward from the periphery of the stepped portion 17, and an eaves portion 19 that extends outward from the cooking vessel 12 from the upper end of the upper peripheral wall 18. It is composed of

  In addition, the flange portion 19 is formed of a resin such as polypropylene having a heat resistant temperature of about 140 degrees, and when the square dish 6 is placed on the placement rails 9, 10, 11 of the heating chamber 2, each rail And a resin guard 20 for maintaining a distance such that no discharge occurs between the rail and the flange portion 19 of the square plate 6. The resin guard 20 is also provided with a convex portion 21 that protrudes downward to become a leg portion when the square plate 6 is placed on a kitchen table or the like.

  The part formed with the said food mounting part 13 and the lower stage surrounding wall 17 is equivalent to the container part of this invention, and the height of the lower stage surrounding wall 17 is equivalent to the quantity of water required when performing steaming cooking. The height is assumed. In other words, since the steam is cooked by pouring water up to the vicinity of the stepped portion 18, the user can easily determine an appropriate amount of supply without measuring the amount.

  In addition, as shown in FIG. 6, the size of the square plate 6 is such that the corner portion of the square plate 6 draws an arc when compared to the lower surface 2 b (the size indicated by the dotted line) of the heating chamber 2. Except for a gap, they are formed in approximately the same size.

The microwave supplied from the magnetron into the heating chamber 2 is supplied to the space between the bottom surface of the square plate 6 and the food placing plate 5, and a part of the microwave is provided between the square plate 6 and each side wall of the heating chamber 2. For example, it wraps around the top of the square plate 6 from the corner portion or the like, penetrates the slat 7 or the lid 8 and reaches the food, and heats the food. However, since most of the microwaves have the plate 6 made of metal, the microwave is repeatedly reflected between the bottom surface of the plate 6 and the food placing plate 5, and a part of the reflection is present on the heating element 15 . It is absorbed and returned to heat.

  Steamed cooking requires heating with steam, and when microwaves reach a large amount of food, heating by microwaves progresses. It may cause cooking failure. For this reason, when steaming cooking is performed, it is necessary to limit the amount of microwaves reaching the food, and therefore the square dish 6 is made of metal in the present embodiment.

Next, the saw board 7 is formed of the same material as the resin guard, and is provided on the food mounting surface 23 in which a plurality of through holes 22 through which steam can pass are formed, and all around the lower side of the food mounting surface 23. The slatted leg 24 having a height of about 5 mm, the slatted side wall 25 erected above the periphery of the food placing surface 23, and extended from the upper end of the slatted side wall 25 to the outside of the slat 7. It is comprised from the saw step part 26 provided, and the saw edge part 28 extended in the side through the standing wall 27 standing up from the circumference | surroundings of this saw step part 26. As shown in FIG.

  The slatted leg portion 24 is placed in contact with the entire circumference on the step portion 17 of the square plate 6. With this configuration, a space closed by the food placing portion 13 of the square dish 6, the lower peripheral wall 16, the slatted leg portion 24, and the food placing surface 23 except for the through holes 22 drilled in the food placing surface 23. Is formed.

  Since the slatted leg portion 24 is in contact with the stepped portion 17 over the entire circumference, most of the steam generated in the square plate 6 is supplied into the slat 7 and hardly leaks to the outside, so that it diffuses into the heating chamber 2. It is possible to prevent water vapor from being reduced and the inside from being invisible through the door 3 due to condensation on the wall surface in the heating chamber 2 or fogging of the door 3. In addition, the moisture content can be reduced in the hot air leaking from the heating chamber 2 to the outside, and it is possible to suppress the occurrence of dew condensation on the wall in the vicinity of the microwave main body 1 and the like.

  Further, the slat cover 8 is made of a resin material such as polypropylene having a lower heat resistance than that of the slat 7, and a lid edge 29 that is placed in contact with the edge 28 of the slat 7 and the lid edge 29. The lid rib 30 protrudes downward to the entire inner circumference of the slat 7 and engages with the standing wall 27 of the saw 7, and bulges upward from the inner circumference of the lid edge 29 into a circular arc shape, with the center portion being flat The lid body 31 is maintained, and a handle provided on a portion of the lid body 31 that is bulged into a circular arc shape in cross section.

  A lid guard 33 made of a resin having a heat resistance higher than the heat resistance temperature of the slat cover 8 is detachably attached to the lower portion of the lid edge portion 29. The lid guard 33 includes a lid guard rib 34 higher than the lid rib 30 on the entire circumference along the outer peripheral surface of the lid rib 30. The height of the lid rib 30 may be high enough to prevent water droplets condensing on the back surface of the lid body 31 from entering at least the gap between the lower surface of the lid edge 29 and the lid guard 33.

  This is because hot water droplets condensed on the back surface of the lid body 31 when the user lifts the stool lid 8 during heating or after heating is used from the gap between the lower surface of the lid edge 29 and the lid guard 33. This is to prevent the person from getting on the person's arm.

  In this configuration, a procedure for performing steaming cooking will be described.

  First, the user pours water into the food placing portion 13 in the square dish 6, and the amount of water to be poured becomes an appropriate amount when poured up to a height near the step portion 18. Next, the sushi 7 is placed on the stepped portion 18, and the steamed cooking food 209 such as steamed rice cake is placed on the food placement surface 23. Finally, the upper surface opening of the saw 7 is closed with the saw cover 8.

  Next, the user opens the door 3 of the microwave oven 1, lifts the cooking container 12, and temporarily places it on the opened door 3. Then, the square plate 6 is slid and pushed into the heating chamber 2, is slid on the mounting lower rail 11, and is stored in the heating chamber 2. Thereafter, the door 3 is closed and the setting unit 4a of the control panel 4 is operated to perform steaming cooking.

  When steam cooking is started, the microwave from the magnetron is supplied into the heating chamber 2, and the heating element 15 absorbs the microwave to generate heat, and this heat heats the water in the square dish 6 to generate steam. generate. The generated steam passes through the through hole 22 of the food placing surface 23 of the saw 7 as shown by an arrow described in the saw 7 in FIG. 3 and steam heats the placed food. Steam cooking ends when steam heating is performed for a set time.

  After steaming is completed, the door 3 is opened, the cooking container 12 is pulled out onto the door 3, and the square plate 6 is lifted and taken out from the heating chamber 2.

  The square plate 6 can be used not only for steaming cooking but also for baking cooking in which food is burned with heat from the heating element 15. For example, grilled dumplings and hamburgers are examples of cooking.

  When this grilling is performed, the lid edge portion 29 of the slatted lid 8 is placed on the bowl 19 of the square plate 6 so that the slatted lid 8 also serves as the lid of the square pan 6 during grilling. With such a configuration, it is possible to execute baking cooking that heats the food as quickly as possible while steaming with moisture evaporated from the food. During the baking, the square plate 6 becomes a high temperature of 200 ° C. or more. Therefore, the lid main body 31 and the portion of the square plate 6 that comes into contact with the flange portion 19 are arranged so as not to be deformed by the heat. Is provided with a lid guard 33 made of a resin material having a different heat resistant temperature.

  A resin having a high heat-resistant temperature is heavier by weight than a resin having a low heat-resistant temperature because a large amount of material for increasing the heat-resistant temperature such as the amount of glass fiber is mixed therein. However, the lid body 31 occupying most of the slatted lid 8 is formed of a resin having a low heat resistance temperature, and only a portion in contact with the square plate 6 is made of a resin having a high heat resistance temperature, thereby reducing the weight as much as possible. It is.

  Further, as shown in FIG. 10, hook portions 35 having a U-shaped cross section are provided at portions of the lid guard 33 where the lid ribs 34 are in contact with the lid rib 30. Is engaged. The hook portion 35 is for keeping the shape of the saw lid 8 without being deformed by heat.

  From the above, the temperature of the heat generating flat surface portion 13 is raised by about 230 degrees due to the heat generated by the heat generating element 15, whereas the step portion 17 on which the saw 7 is placed has the heat generating flat surface portion 13 and the lower step peripheral wall 16. Is connected to the heating element 15, so that the temperature rise from about 130 degrees to about 150 degrees can be suppressed without water being poured into the square dish 6. Even if the water is poured into the inside, even if the water reaches 100 degrees, it can be suppressed to about 90 degrees, making it possible to form the material of the saw 7 with a resin having a low heat-resistant temperature, thereby suppressing an increase in cost. In addition, the weight of the slat 7 itself can be reduced.

  Moreover, the height of the lower peripheral wall 16 of the square plate 6 is set such that the surface of the steamed cooking water poured into the square plate 6 is below the surface of the step 17 of the square plate 6. Since the slatted leg portion 24 is placed in contact with the entire circumference of the stepped portion 17 of the square plate 6, the water poured into the square plate 6 is arranged inside the slatted leg portion 24 of the slatted plate 7. Therefore, all the generated steam can pass through the slat 7.

  Furthermore, since the square dish 6 is formed of a metal material and has a shape approximately the same as the lower surface 2b of the heating chamber 2, the microwave supplied from below the lower surface 2b of the heating chamber 2 is And is hardly supplied to the upper side of the square plate 6. For this reason, most of the microwaves absorbed by the heating element 15 do not contribute to the heating of the food in the slats 7 by other microwaves. By setting it as such a structure, the steaming cooking by a vapor | steam is implement | achieved. Therefore, the snowboard 7 and the lid 8 can be made of resin, and the weight of the cooking container can be reduced also in this respect.

It is an external view of the microwave oven of this invention. It is a front external appearance perspective view of FIG. It is ZZ sectional drawing in FIG. It is an external appearance perspective view of the steaming cooking container for microwave ovens of this invention. It is an external appearance perspective view of the square plate of a steaming cooking container, a slat, and a slat cover. It is a top view of a steaming cooking container, and is the figure which compared the magnitude | size with the lower surface of a heating chamber. It is AA sectional drawing in FIG. It is an enlarged view of W part in FIG. FIG. 9 is an enlarged view of a portion X in FIG. 8. FIG. 10 is an enlarged cross-sectional view taken along the same direction as in FIG. 9 in a portion where the lid guard rib exists in order to explain the lid guard rib.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Microwave oven body 2 Heating chamber 6 Square dish 7 Soko 8 Sugoko lid 12 Cooking container 13 Heat generation plane part 14 Food support convex part 15 Heating element 16 Lower stage peripheral wall 17 Step part 18 Upper stage peripheral wall 23 Food placement surface 24

Claims (4)

A heat-generating tray that can store water,
Placing on the heat generating tray, allowing steam generated from water in the heat generating tray to pass through, and allowing food to be stored inside;
An upper lid that covers the upper part of the sushi and steams and cooks the food stored in the sword;
The heating tray is
A heating element that absorbs microwaves and generates heat;
A heating flat portion made of a metal material with the heating element disposed on the back surface;
A lower peripheral wall provided with a lower end connected to the periphery of the heat generating flat part and having a predetermined height from the heat generating flat part;
Provided on the entire circumference of the upper end of the lower peripheral wall, and a step portion for placing the saw
An upper peripheral wall connected to the periphery of the stepped portion and erected upward;
A flange extending outward from the upper peripheral wall;
A resin guard that is provided in the collar and prevents discharge from occurring between the heating tray of the microwave oven when the heating tray is placed in the heating chamber of the microwave oven;
Protrusions provided on the resin guard and serving as legs projecting downward,
Have
In addition,
While placing the food, the food placing surface in which a through hole through which steam can pass is formed,
The lower part of the periphery of the food placing surface has a leg part that contacts the step part over the entire circumference,
The heat generating flat surface portion and the lower peripheral wall of the heat generating tray form a container portion that can be pooled in order to generate steam by heating with the heat of the heating element, and the steam generated in the container portion is steamed. A cooking container for a microwave oven, which allows food to reach through the through hole of the sushi placed on the stepped portion in order to perform cooking. The microwave oven cooking container according to claim 1, wherein the predetermined height of the stepped portion is a height corresponding to an amount of water supplied to the container portion. The said heating element is comprised with a ferrite, The cooking container for microwave ovens as described in any one of Claim 1 or Claim 2 characterized by the above-mentioned. The cooking container for a microwave oven according to claim 3, wherein the heating tray is formed to have substantially the same size as the lower surface of the heating chamber.

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