JP2005233467A - Heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating cooker having an increased cooking performance and safety by preventing a cooked material from being excessively dried, unevenly baked, or fired. <P>SOLUTION: A cooking chamber 2 storing the cooked material 1 is allowed to communicate with a heating chamber 4 with a heating means 3 through a communication hole 6, and hot air heated in the heating chamber 4 is circulatingly supplied to the cooking chamber 2 through at least the communication hole 6. By this, since heating on one face of the cooked material 1 can be performed by using mainly radiation heat from the heating means 3, and heating on the other face of the cooked material 1 can be performed by using mainly hot air, the excessive drying can be prevented more than a case using the heating by hot air. Also, a problem in the nonuniform baking can be solved by uniformly baking with hot air. In addition, as for the firing, since the heating chamber 4 is independent of the cooking chamber 2 and the contact of oil and fat with the heating means 3 is suppressed, the risk of the firing can be reduced. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a cooking device used in a kitchen such as a general household.

Conventionally, as this type of heating cooker, a cooking device (for example, refer to Patent Document 1) that supplies hot air into a cooking chamber to heat the cooked food, or an upper heating element and a lower heating element in the cooking chamber. There is known a cooking device (see, for example, Patent Document 2) in which a cooked food is cooked mainly by radiant heat.
JP 2000-329351 A JP 2000-189329 A

  However, in the conventional cooking device, the food cooked with hot air is strongly dried by the hot air, and for example, grilled fish has less juiciness and may end up like a dried fish. It was.

  In addition, in the case of cooking by heating with radiant heat, the radiant heat is in inverse proportion to the fourth power of the distance and it is difficult for the heat to reach, so the way of baking differs between the part facing the heating element and the part slightly away. That is, uneven baking is likely to occur, and some parts are still on fire, but the other parts are still burnt. If you try to pass the fire through this burnt portion, there will be a problem that the portion that has already been burnt will burn. Therefore, due to the way the food is placed and the shape and size of the food itself, it is very difficult to cook without uneven baking. Further, when the cooked food is grilled fish or the like, the oil and fat may flow down during cooking, and the lower heating element may ignite.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a safe cooking device that prevents excessive drying, uneven baking, and ignition of cooked food, improves cooking performance, and is safe.

  In order to solve the above-mentioned conventional problems, the heating cooker of the present invention communicates between a cooking chamber for storing a cooked food and a heating chamber having a heating means for cooking the cooked food via a communication hole, and at least this The hot air heated in the heating chamber through the communication hole is circulated and supplied to the cooking chamber.

  Thereby, heating of one side of the cooked food can mainly use radiant heat from the heating means, and heating of the other side of the cooked food can mainly use hot air, so that it is possible to prevent excessive drying compared to the case of only hot air heating. . In addition, the uneven baking can be solved by baking uniformly, which is a feature of hot air. Furthermore, with respect to ignition, the heating chamber is independent of the cooking chamber, the contact of the oil and fat with the heating means is suppressed, and the risk of ignition is small. Therefore, improvement in cooking performance and safety can be ensured.

  The heating cooker of the present invention prevents excessive drying of the food, uneven baking, and ignition, and can improve cooking performance and ensure safety.

  1st invention has the cooking chamber which accommodates a foodstuff, the heating chamber provided with the heating means which heat-cooks the foodstuff in this cooking chamber, and the ventilation means which ventilates to this heating chamber, The said cooking chamber The heating chamber is connected to the cooking chamber through a communication hole, and at least one side of the cooked food is heated by using a heating cooker that circulates and supplies hot air heated in the heating chamber through the communication hole to the cooking chamber. Can mainly use radiant heat from the heating means, and heating of the other side of the cooked food can mainly use hot air, so that it is possible to prevent excessive drying rather than only hot air heating. In addition, the uneven baking can be solved by baking uniformly, which is a feature of hot air. Furthermore, with respect to ignition, the heating chamber is independent of the cooking chamber, the contact of the oil and fat with the heating means is suppressed, and the risk of ignition is small. Therefore, improvement in cooking performance and safety can be ensured.

  In the second invention, in particular, in the first invention, the communication hole is provided corresponding to the heating means so as to pass the radiant heat from the heating means, so that the radiant heat from the heating means is effectively utilized through the communication hole. Can improve cooking performance.

  In the third invention, in particular, in the first or second invention, the communication hole can be arbitrarily opened and closed by an opening and closing plate, so that the time for heating with radiant heat can be adjusted according to the food. Optimal baking can be achieved.

  According to a fourth aspect of the invention, in particular, in the first or second aspect of the invention, the communication hole can be arbitrarily opened and closed by a rotating plate, so that the time for heating by radiant heat can be adjusted, The direction can be changed arbitrarily, and you can choose where you want to bake well or where you don't want to bake too much. This greatly improves cooking performance. In addition, more uniform cooking performance can be obtained by automatically moving the rotating plate like a louver of an air conditioner or the like.

  In the fifth aspect of the invention, in particular, in the first or second aspect of the invention, the communication hole can be moved so that the degree of freedom of the communication hole is increased, and it is efficient even when cooking a small amount of food. I can cook. In addition, when cooking foods having different heating times, cooking can be performed successfully by changing the position of the communication hole.

  According to a sixth aspect of the invention, in particular, in any one of the first to fifth aspects of the invention, the heating means is movable in the heating chamber, so that when the radiant heat is not used in cooking, the heating means is moved. The food can be mainly heated with hot air while suppressing radiant heat.

  In the seventh invention, in particular, in the first invention, the cooking chamber and the heating chamber are partitioned by a heat-resistant glass plate that transmits radiant heat from the heating means, and the heat-resistant glass plate is provided with a communication hole, so that the radiant heat is heat-resistant. It reaches the food through the glass plate and the heating efficiency is very good. The communication hole can be reduced as much as possible by using a heat-resistant glass plate, and the speed of the hot air is increased. As a result, the hot air easily reaches the back of the food and the unevenness of baking is reduced. Further, as a ripple effect, the cooking chamber is brightly illuminated through the heat-resistant glass plate by the red heat of the heating means, and it becomes easy to confirm the finish of the cooked food from the outside.

  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 and 2 show a cooking device according to Embodiment 1 of the present invention.

  As shown in FIG. 1, the heating cooker according to the present embodiment includes a cooking chamber 2 in which a cooking object 1 such as fish is placed on and placed on a mounting tool 2 a and a cooking object 1 in the cooking chamber 2. A heating chamber 4 provided with heating means 3 for cooking by heating is disposed above the cooking chamber 2 and a blower means 5 for blowing circulating air to the heating chamber 4. The cooking chamber 2 and the heating chamber 4 communicate with each other. The holes 6 communicate with each other. As shown in FIG. 2, a plurality of the communication holes 6 are provided in the partition plate 7 that partitions the cooking chamber 2 and the heating chamber 4, but the size, number, or position thereof is particularly limited. is not.

  In the present embodiment, the heating elements 3a, 3b, 3c of the heating means 3 and some of the communication holes 6 correspond to each other, and the radiant heat from the heating means 3 is directly supplied to the food 1 through the communication holes 6. It is like that. Further, hot air blown into the heating chamber 4 and heated here is circulated and supplied to the cooking chamber 2 from the communication hole 6. Further, hot air is mainly circulated and supplied to the cooking chamber 2 from the communication holes 6 not corresponding to the heating elements 3a, 3b, 3c of the heating means 3. If the partition plate 7 is made of a material that transmits radiant heat, or if the partition plate 7 is heated to emit radiant heat, the communication holes 6 corresponding to the heating elements 3a, 3b, and 3c of the heating means 3 are not necessarily provided. It is not necessary, and only the communication holes 6 that do not correspond to the heating elements 3a, 3b, and 3c of the heating means 3 may be used, and at least hot air may be circulated and supplied from here to the cooking chamber 2. The heating elements 3a, 3b, and 3c may be sheathed heaters or carbon heaters, but here, straight pipe Miraclon heaters are used. This is because the Miraclon heater is suitable for a short rise time after heating.

  The blowing means 5 blows circulating air to the heating chamber 4 through the blowout holes 8, and the hot air supplied to the cooking chamber 2 to heat the food 1 and lower in temperature is sucked through the suction holes 9, Air is circulated like

  And each said structure is accommodated in the housing | casing 11 which has the door 10, and comprises heating cookers, such as a roaster.

  The operation and action of the cooking device configured as described above will be described below.

  In order to perform cooking, first, the food 1 is placed on the mounting device 2 a, and the grilled fish is placed in the cooking chamber 2 as the cooking material 1 together with the mounting device 2 a, for example. Here, I will explain with saury, which is popular as a grilled fish.

  Then, when the start switch of the housing 11 is pressed, cooking starts. When the heating elements 3a, 3b, and 3c are heated red and radiant heating is started, the ambient temperature in the heating chamber 4 also increases due to the temperature rise on the surface of the heating elements 3a, 3b, and 3c. The circulating air generated by the air blowing means 5 incorporated in the housing 11 becomes hot air due to this temperature rise. Hot air blows into the cooking chamber 2 from the communication hole 6 and convection cooking is performed on the saury placed in the cooking chamber 2.

  Although the position of the air blowing means 5 is provided on the left side of the cooking chamber 2 of the housing 11 in the present embodiment, it is not particularly limited. As shown in FIG. 2, the size of the communication hole 6 of the partition plate 7 is changed in order to change the speed of hot air. Naturally, the larger the communication hole 6 is, the smaller the pressure loss, the greater the amount of hot air, and the greater the amount of heat. The temperature of the hot air can be changed to a wide range, but when the saury in the present embodiment is baked, it is set to about 300 ° C. This temperature should be changed according to the cooking menu. In the present embodiment, the communication holes 6 corresponding to the heating elements 3a, 3b, 3c are made small. Thereby, the hot air flow from the large communication hole 6 is blown to the lower side of the cooking chamber 2, and most of the hot air passes through the lower side of the mounting tool 2 a. Therefore, the lower side of the saury can be baked by being exposed to a lot of hot air.

  The hot air naturally passes through the upper side, but less heat is given to saury than the lower side. The difference in the heat balance between the lower and upper portions is compensated by radiant heating through the communication hole 6 provided to be small. It is intentional that a large amount of hot air passes through the lower side. This utilizes the fact that hot air is highly dry as described above. Grilled fish such as saury have moisture because they are raw. Therefore, the lower side baking is not always good only by the radiant heating method. The reason is that moisture moves downward due to gravity. For this reason, in the radiant heating method, the upper part of the saury is too scorched and the lower part is still watery and the steamed fish is just finished.

  In this embodiment, by controlling the amount of hot air blown, it is possible to control the heating of the cooked food 1 with the hot air at the top and bottom, so the feature that the hot air is inherently easy to dry is utilized where there is a lot of moisture under the saury. By doing so, a crisp grilled state can be obtained as a grilled fish.

  In addition, in the baked food 1 which does not have much moisture, it can respond by adjustment of the ventilation volume of the ventilation means 5. FIG. Naturally, it is possible in the configuration of the present embodiment to link the amount of blown air whose conditions are determined in advance and the cooking menu. Uneven baking can be eliminated by circulating hot air and hitting saury. Although the difference due to the radiant heating distance seems to be uneven baking, since hot air blows out from the communication hole 6, the hot air hits the upper surface of the saury and acts in a direction without uneven baking, which is a characteristic of hot air.

  As for the ignition, the heating chamber 4 is independent of the cooking chamber 2 and has no heating element on the lower side. Therefore, even if oil from the saury falls, ignition does not occur and safety is ensured. It can be secured. That is, the lower baked food uses hot air as described above, but the hot air does not reach about 700 ° C., which is the surface temperature of the heating elements 3a, 3b, and 3c. The reason why the hot air temperature is set to 300 ° C. as described above is based on the fact that the baking temperature in the hot air method can be sufficiently cooked at 250 ° C. to 300 ° C. doing. At this temperature, the oil does not ignite. Moreover, in response to the concern that fats and oils jump from the cooked food 1 to the heating elements 3a, 3b, and 3c of the heating chamber 4 and there is a possibility of ignition, the particle size is also extremely small with respect to the amount of fats and oils that fall. In addition, because of the hot air system this time, hot air blows out from the communication hole 6 into the cooking chamber 2. That is, it is extremely difficult to enter the heating chamber 4 side and there is no possibility of ignition. In this way, by making the two heating methods of radiant heating and hot air heating as in this embodiment, it is possible to solve all of the significant deterioration in cooking performance and safety of dry taste, uneven baking, and ignition. is there.

(Embodiment 2)
3 and 4 show a cooking device according to Embodiment 2 of the present invention. The same elements as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  As shown in the figure, the heating cooker according to the present embodiment can freely open and close the communication hole 6 corresponding to the heating elements 3a, 3b, and 3c of the heating means 3 by means of a sliding opening / closing plate 12. It is. Hot air is always blown into the cooking chamber 2 from the communication hole 6 without the opening / closing plate 12 so that the cooked food 1 is cooked.

  As shown in detail in FIG. 4, the wire 13 is wound up by a motor (not shown), and the open / close plate 12 is slid to open the communication hole 6. When the wire 13 is loosened, it is closed by the elasticity of the spring 14. This mechanism is an example, and other mechanisms may be used.

  Next, operation | movement and an effect | action of the heating cooker in this Embodiment are demonstrated.

  By arbitrarily adjusting the opening / closing time, opening / closing timing, or opening / closing degree of the communication hole 6 by the opening / closing plate 12 and controlling the radiant heating, the heating by the radiant heat can be adjusted according to the food 1. Can be achieved. For example, when the sauce that has been added is too dried, the flavor of the sauce is impaired, so that the best finish can be ensured by opening the open / close plate 12 and cooking mainly using radiant heating. On the contrary, the cooked food 1 mainly used for hot air heating includes chicken and the like, but the skin can be crisply baked by adjusting the communication holes 6 and mainly using hot air.

(Embodiment 3)
5 and 6 show a cooking device according to Embodiment 3 of the present invention. The same elements as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  As shown in the figure, the heating cooker in the present embodiment is provided with a rotating plate 15 in each communication hole 6 corresponding to the heating elements 3a, 3b, 3c of the heating means 3, respectively, Each communication hole 6 can be arbitrarily opened and closed by a rotating plate 15.

  As shown in detail in FIG. 6, the rotating plate 15 can be tilted to the left or right side about the rotating shaft 16, and can naturally be closed. Although the rotation mechanism is not shown, in this embodiment, the rotation shaft 16 is driven and controlled by a motor.

  Next, operation | movement and an effect | action of the heating cooker in this Embodiment are demonstrated.

  Both the radiant heating and the hot air can be controlled by the rotating plate 15. In addition to being able to adjust the time for heating by radiant heat, when the rotating plate 15 is tilted, It becomes a guide, and the flow in the tilted direction increases. That is, the place to be baked of the food 1 can be well baked, which leads to a significant improvement in cooking performance. In this way, by changing the direction of the hot air arbitrarily, it is possible to select a portion of the cooked food 1 where it is desired to be baked well or where it is not desired to bak. Moreover, like a louver of an air conditioner or the like, the rotating plate 15 is automatically and periodically moved so as to change its orientation, thereby being less affected by the size and placement of the food 1 and more uniform. Baking performance is obtained. For example, it is possible to prevent hot air from flowing toward the tail fin, such as when the tail fin is burnt, for example, when the tail fin is burnt, the value is remarkably reduced.

(Embodiment 4)
FIG. 7 shows a main part of the heating cooker according to the fourth embodiment of the present invention. The same elements as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  As shown in the figure, in the heating cooker according to the present embodiment, a heat-resistant rotating body 17 provided with a communication hole 6 is rotatably attached to a partition plate 7 by a rotating shaft 18. The position of the communication hole 6 can be moved by the movement. Although not shown, the partition plate 7 has a hole of a certain size, and corresponds to the communication hole 6 of the rotating body 17. The rotating body 17 is moved by a motor and can be stopped at a predetermined or arbitrary position.

  Next, operation | movement and an effect | action of the heating cooker in this Embodiment are demonstrated.

  By rotating the rotating body 17, the position of the communication hole 6 can be moved, so that the degree of freedom of the communication hole 6 is increased. For example, when cooking a small amount of food 1 such as a fish fillet, if the communicating hole 6 is placed at that position, heating can be efficiently performed. In addition, when cooking the cooked food 1 having different heating times, by changing the position of the communication hole 6 with time, radiant heating and hot air can be given as the optimum amount of heat, and at the same time cooking can be performed well. is there. Further, even when there is a place where the charred eyes are particularly strongly attached so as to improve the texture and look delicious, it is easily possible by moving the communication hole 6.

(Embodiment 5)
FIG. 8 shows a cooking device according to Embodiment 3 of the present invention. The same elements as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  As shown in the figure, the heating cooker according to the present embodiment is configured such that the heating means 3, that is, the heating elements 3 a, 3 b, 3 c can be moved in the heating chamber 4. In this case, the communication hole 6 provided in the partition plate 7 is fixedly installed at a fixed position. In the present embodiment, the mechanism for moving the heating means 3 uses miraclon heaters as the heating elements 3a, 3b, and 3c, but drives the mounting portion to the left and right. The heating means 3 can be moved not only by moving the whole unit together but also by individually moving the heating elements 3a, 3b, 3c.

  Next, operation | movement and an effect | action of the heating cooker in this Embodiment are demonstrated.

  Now, when it is not desired to use radiant heat in cooking, the heating means 3 is moved, and the heating elements 3a, 3b, 3c are moved to positions shifted from the communication holes 6 of the partition plate 7, thereby suppressing the radiant heat and cooking. The object 1 can be mainly heated air. This is effective when you want to cook the whole chicken and other foods. On the other hand, when radiant heat is to be used in cooking, the heating means 3 is moved to a position where the heating elements 3a, 3b, 3c and the communication hole 6 face each other, so that the radiant heat is directly applied to the cooked item 1 and mainly radiant heating. Can be cooked. Thus, it becomes possible to easily switch between hot air heating and radiation heating.

(Embodiment 6)
FIG. 9 shows a heating cooker according to Embodiment 6 of the present invention. The same elements as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  As shown in the figure, the heating cooker in the present embodiment partitions the cooking chamber 2 and the heating chamber 4 by a partition plate 7 made of a heat-resistant glass plate that passes radiant heat from the heating means 3, and generates heat from the heat-resistant glass plate. One communicating hole 6 for flowing hot air is provided at a position not facing the bodies 3a, 3b, 3c. In the present embodiment, the heat-resistant glass plate of the partition plate 7 has a thickness of about 8 mm. However, the partition plate 7 can be made even thinner because it is not particularly loaded.

  Next, operation | movement and an effect | action of the heating cooker in this Embodiment are demonstrated.

  Since the heat-resistant glass plate is used as the partition plate 7, the radiant heat can reach the cooked product 1 through the heat-resistant glass plate without any interruption, and the heating efficiency of the radiation is greatly improved. And the communication hole 6 can be reduced as much as possible by using a heat-resistant glass plate, the temperature and speed of the hot air coming out of the heating chamber 4 are increased, and as a result, the hot air can easily reach the lower surface of the food 1. , Baking unevenness is reduced. That is, the upper side surface of the food 1 is mainly heated by radiation, and the lower side surface is mainly heated by hot air. Therefore, it is suitable for cooking grilled fish such as horse mackerel and saury. Moreover, as a ripple effect, the inside of the cooking chamber 2 is brightly illuminated through the heat-resistant glass plate by the red heat of the heating elements 3a, 3b, and 3c, so that the finish of the cooked item 1 can be easily confirmed from the outside.

  As described above, in each of the first to sixth embodiments, it is possible to solve all the problems of significantly reducing the cooking performance and safety of dry taste, uneven baking, and ignition. In addition, in terms of cooking performance, more than solving only the dry taste, the permissible range for selecting the heating suitable for the cooked food is widened, which leads to the improvement of the deliciousness that the user always demands. And it is also possible to comprise a heating cooker combining each Embodiment 1-6 as needed.

  As described above, the heating cooker according to the present invention can prevent the dry taste, uneven baking, and ignition of the cooked product, and is dedicated to cooking devices such as IH and heating microwave oven, or cooked products such as meat and fish. It is useful for cooking appliances that require cooking and safety, such as cooking equipment with a roaster function.

Side sectional view of the heating cooker in Embodiment 1 of the present invention. Enlarged perspective view of the partition plate of the cooking device Side sectional view which shows the heating cooker in Embodiment 2 of this invention. The perspective view which shows operation | movement of the opening-and-closing plate of the heating cooker Side sectional view of the heating cooker according to Embodiment 3 of the present invention. Sectional drawing which shows operation | movement of the rotation board of the heating cooker The perspective view which shows the communicating hole of the heating cooker in Embodiment 4 of this invention Sectional drawing which shows the relationship between the heating means and partition plate of the heating cooker in Embodiment 5 of this invention Side sectional view of the heating cooker in the sixth embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cooking thing 2 Cooking chamber 3 Heating means 3a, 3b, 3c Heating body 4 Heating chamber 5 Blower means 6 Communication hole 7 Partition plate 12 Opening / closing plate 15 Rotating plate 17 Rotating body

Claims (7)

A cooking chamber for storing the cooked food, a heating chamber having heating means for heating and cooking the cooking food in the cooking chamber, and a blowing means for blowing air to the heating chamber, wherein the cooking chamber and the heating chamber communicate with each other A cooking device that communicates through a hole and circulates and supplies hot air heated in the heating chamber through at least the communication hole to the cooking chamber. The cooking device according to claim 1, wherein the communication hole is provided corresponding to the heating means so as to allow the radiant heat from the heating means to pass therethrough. The cooking device according to claim 1 or 2, wherein the communication hole can be arbitrarily opened and closed by an opening and closing plate. The cooking device according to claim 1 or 2, wherein the communication hole can be arbitrarily opened and closed by a rotating plate. The cooking device according to claim 1 or 2, wherein the communication hole is movable. The cooking device according to any one of claims 1 to 5, wherein the heating means is movable in the heating chamber. The cooking device according to claim 1, wherein the cooking chamber and the heating chamber are partitioned by a heat-resistant glass plate that transmits radiant heat from the heating means, and a communication hole is provided in the heat-resistant glass plate.

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