WO2006028338A1

WO2006028338A1 - Roaster for microwave oven

Info

Publication number: WO2006028338A1
Application number: PCT/KR2005/002923
Authority: WO
Inventors: Jong Hyun Kim
Original assignee: Jong Hyun Kim
Priority date: 2004-09-07
Filing date: 2005-09-03
Publication date: 2006-03-16

Abstract

The present invention, as the cooker for food to roast in the microwave oven, has iron scale powder, as main material, and heating plate made the flame and heat-resistant silicon rubber as binder is attached to the underbody of a roast pan, and it is the roast pan that combined structures of the roast pan supporting heating plate, as the insulation support of heating plate in the lower part, into the container of the body. Therefore, the present invention is that if the roaster for microwave oven is operated, heating from the heating plate is transmitted to the roast pan, and the heating can roast food. The present invention is that as the roast pan and cover of it, as metal materials, can't project microwave, food can't contact with microwave directly. So, the food can be roasted not to dry during cooking and snacks, such as a fried dumpling stuffed with minced pork, frozen pizzas, ham, sausages, scorched rice, or the principal food can cook simply and conveniently by using the roaster for microwave oven.

Description

Roaster for Microwave Oven

[Technical Field]

The present invention, as the cooker for food to roast in the microwave oven, has iron scale powder, as main material, which emits magnetic heating, absorbing it if high frequency is projected. And the heating plate is attached to the underbody of the roast pan by the flame and heat-resistant silicon rubber as binder. And the roast pan combines structures of the roast pan supporting the heating plate, as insulation support of the heating plate in the lower part, into the container of the body.

[Background Art]

As a molecule of water included in food turns and collides by high frequency and heat is generated, the cooking by high frequency of microwave oven has been used to heat up or cook food, but not used to roast food by high frequency.

The existing roaster for microwave oven as a cooker roasting by high frequency that uses ferrite that emits magnetic heating if high frequency is projected, would be produced for sales. But it has had problems about practicality and merchandising because of problem of heating and insulation trouble needed for roasting cook and production cost and heat-resisting property of the heating plate and attaching between the roast pan and the heating plate.

And the heating plate mixed with ceramic clay for magnetizing has defects whose heat-resisting property is good, but its manufacturing process of roll mixing milling, pressing, drying, the first baking, and the second baking is complicated and takes a lot of time. And it is difficult for pressing things with high oxidized steel content for high heating temperature to magnetize in the second baking process and many inferior goods is made, and it is difficult to standardize because of the irregular measurements of completed products.

[Disclosure of Invention] Technical Subject

The present invention is improved application of patent registration No. 0298123 of the roast pan for microwave oven. It has convenience to roast in microwave oven and high heat-resisting property of the heating element as the heating roast pan that iron scale powder and clay of ceramic are used and magnetized. But it has had problems about complicated manufacturing process and insecurity of the measurements, the dry on cooking due to direct projection into food by high frequency, and inconvenience by the heating handle after cooking. Thus, the present invention, as improvement application, is created for solving these problems.

Technical Solution Methods

The present invention can solve existing problems and produce the heating plate simply and inexpensively, and it has high practicality and commodity with standardization of quality by insecurity of the measurements, heat-resisting property, durability, convenience of use.

The heating plate of this invention can buy materials inexpensively by using iron scale mainly (oxide coating made by the cold rolling process of an iron works). And, as the flame and heat-resistant silicon rubber as a binder and iron scale powder is mixed and produced thermosetting press, it is simple and has the possibility of mass production in a short period of time. So, it can cut down the cost and time of production sharply and produce required measurements consistently.

And if to attach the heating plate to the underbody of the roast pan uses adhesives or sealant, the heating plate can cause the highest temperature of 300 to 380 degrees. In that case, adhesives or sealant isn't durable and is detached easily. So, the insulation support of the heating plate has attached to the underbody of roast pan closely, and although the heating plate can caused a crack and damage by careless use, it can work well without breaking up. Also, contact of the heating plate is cut off in the body of microwave and stops delivering high temperatures not to damage the body of microwave of thermoplastics with limits of heat-resisting property.

And the roast pan and it's cover made as metallic materials, cut off projection of high frequency and are invented in order not to cause drying of food on cooking. That is, cooking by the present invention is not by high frequency, but heat of the heating plate emitted by high frequency is transmitted to roast pan and then food again, and the food is roasted. So, the defects that food has been dry and its flavor has reduced by high frequency are solved.

The heat sink is put in the underbody of the body of microwave oven to emit expanding air of the bottom inside by high temperatures attached the underbody of the roast pan outside and heat-resisting property and durability of the body of microwave oven has become high. And the heating plate is attached to the underbody of the heating plate to disperse it, or the heating plate has hole structure to relieve heat from being centralized. Effect of Invention

Existing microwave oven has been used to heat up and cook food, but it couldn't be used to roast food. Although there was sometimes a roaster for microwave oven, it couldn't be used properly due to problems of practicality, stability and convenience of it by now. But, as the present invention is simple structure of production and convenient and can use safely, this is the invention that can roast food effectively as microwave oven.

Therefore, the various foods can be roasted for a snack and the principal food such as a fried dumpling stuffed with minced pork, nuggets, slices of roast, the ribs of beef and ham, sausages, frozen pizzas, a sweet potato.

The roaster for microwave oven has merits that can cook simply and conveniently in a short period of time in comparison with a gas range and an electric range. And it also has merits that an old and feeble person or a child can use it safely because of carrying it even after cooking with one's bare hands. Especially, as the inside of the present invention has been coated with nonstick materials and generation of heat temperature rises and is sustained regularly, it has no inconvenience that should use oil and roast food, like a frying pan of a gas range and an electric range.

And the present invention has a simple manufacturing process, and production cost is reduced, and it has the possibility of mass production in a short period of time. So, the roast pan can be produced by inexpensive cost and the binder of iron scale powder is used for the flame and heat-resisting silicon rubber. And its measurement is regular by pressing thermosetting press and by heating of the heating plate it has a merit to adapt flexibly to heating expansion of silicon materials. Also, as iron scale, scrapped material, is used for the main material of the heating plate, the present invention has recycling effect.

Brief Description of Drawings

Figurei is the perspective view of combined product of the present invention. Figure2 is the deal drawing 1 of the present invention.

Figure3 is the sectioned drawing of A-A combined insulation support of the heating plate (5), heating plate (4), and roast pan (4) with the body of microwave oven (6) of Figure2.

Figure 4 is the heating plate drawing formed hole. Figure 5 is the sectioned drawing 2 of the present invention.

Figure 6 is the insulation support of the heating plate (5-a) and the heating plate (4-b) in the body of microwave oven of Figure 5 of the present invention. And the sectioned drawing combined roast pan (3). Figure 7 is the sectioned drawing 3 of the present invention. (Explanation of sign about the main parts of drawing) 1 : a handle of cover 2: cover

3: roast pan 31 : roast pan frame 32 : roast pan groove 4(4-a, 4-b, 4-c): heating plate 41 : hole

5(5-a): insulation support of heating plate 51 : the main entry of the heating plate 52: rib 53: support of the floor 54: support of sides

6(6-a): the body of microwave oven 61 : the frame of the cover support 63: the left of roast pan frame 64(64-a): heat sink 65: the handle of the body 66: the bottom main part of the body container [Best Mode for Carrying out the Invention]

The method is that 80 percent of iron scale powder and 20 percent of the flame silicon rubber is mixed. And six heating plates of fan-shape with thickness of 3mm and area of 23.5cm ²Of Figure 2 (the heating plate of Figure 2) is generated heat of 250 to 300⁰C in three minutes in 700W of a home microwave oven. And then, heat is transmitted to the roast pan and roast cooking can work well.

To diminish its partial overheating by being centralized heat coming from the heating plate, the heating plate is divided into two parts and they attach to the underbody of the roast pan, or one more hole (41) of in the heating plate is formed. In addition, as the heating plate has a container shape and deep shape like the heating plate of Figure 7, it is possible to cook food such as a boiled egg, stew, broth, boiled rice and so on in addition to roast cooking with high heating and warmth of it

And the insulation support of the heating plate (5, 5-a) is made of ceramics and silicon rubbers, glass fibers, asbestos clothes and so on, and takes a role that supports the heating plate as noncombustible material with excellent flame resistance.

Like the insulation support of the heating plate of Figure 2, it is the shape putting in the main entry of the heating plate (51) and the rib (52), but Like Figure 5 or Figure 7, the bottom support (53) and the side support (54) are put in the insulation support of the heating plate to support the roast pan closely and take the role of heating and warmth.

Although the heating plate can be cracked and be broken in structure of Figure 5 or Figure 7 by carelessness, it has been put together firmly without scattering and it has no problems to heat and has the container of the body not to damage. And the container of the body (6) imposes microwave and has excellent flame resistance and uses thermoplastics such as polyether imide with low thermal conductivity and can be used safely because the handle is not hot in carrying after cooking and can resist high heating from the heating plate. The shape of the container of the body (6, 6-a) has the left of the cover (61 ) and the cover support frame (62) and the cover (2) can be put without being eccentric and the left of the roast pan frame (63) has combined with the roast pan (3).

In the bottom, thermal expansion of the inside radiates from the heating plate (64-a), or many heat sinks (64) is put and the bottom main part of the body container (66) is put. And it keeps certain distance with the heating plate (4, 4-a, 4-b, 4-c) to prevent the container of the body from doing damage by high heat of overheating part.

Attaching the container of the body (6) and roast pan (3) is that heat-resisting sealant is spread and attached on the outside of roast pan. Or the top of roast pan frame is covered with the ring produced apart and it is attached to the container of the body by high frequency, so the roast pan is fixed. Attaching the roast pan and the heating plate is to attach supporting as the insulation support of the heating plate (5) and supplementing as heat-resisting sealant. And the cover (2) constitutes metal (enamel coating, ceramic coating, powder painting, etc) formed coating (an iron plate, aluminum, stainless steel, etc) on surface to secure insulation by contacting the roast pan, or it is used to the material that heat-resistant resin plates with metal not to project microwave. So, it is prevented high frequency from projecting directly not to dry food by cooking when food is roasted. But like in the case of making scorched rice, when food that dries while roasting it is required, if it is heated, with the cover opening, microwave is projected to food directly and food can dry and be roasted.

The handle of the cover (1) projects microwave as thermoplastics and constitutes materials with high heat-resisting property and low thermal conductivity, so the handle is not hot and can carry safely after cooking.

[Mode for Carrying out the Invention]

The constitution of the present invention is that microwave is absorbed in the underbody of the roast pan (3) and the heating plate being magnetic heating (4,4-a,4-b,4-c) is attached, and then heating roast pan structures, which the heating plate is supported closely as the insulation support of heating plate (5, 5-a) in the bottom, inserted and combined in the container of the body (6, 6-a). This is the very roaster for microwave oven that forms a group with the cover (2). The heating pan (3) can be formed in various shapes - a frying pan, container, or shapes required and so on. And it doesn't project microwave in parts contacted cooking food and has materials such as aluminum, copper, iron, stainless steel with excellent thermal conductivity and metal of thickness of 0.5 to 2mm. The roast pan frame (31) putting the upper circumferential part can be combined with the left of the roast pan frame of the body container (3). And the roast pan groove (32) is put in the small of the back of the body container to resist bending force of the roast pan (3) and the structure can be attached and combined with the container of the body and coated with fluoroplastic or ceramic in the bottom.

Like Figure 7, the roast pan and the container of the body formed with deep shape can be cooker to cook food such as a boiled egg, stew, broth, boiled rice and so on in addition to roast cooking.

And once the heating plate (4,4-a,4-c) absorbs projected microwave in it, as ,heat that is emitted from disappeared microwave is transmitted into the roast pan to roast the food in the roast pan. There are shapes - of circle, doughnut, fan-shape, square, frying pan, container shape (4-c) and so on. And there are the various shapes that can be attached to the underbody closely according to a shape of the bottom of the roast pan, and one shape or a divided shape is attached to the underbody.

Component parts of the heating plate (4,4-a,4-b,4-c) and the process of manufacture © are to harden during about 1 to 3 hours in 300 to 500⁰C after thermosetting press in 1 to 5mm thickness in 160 to 200 ⁰C about the one required after weight 60 to 90% of iron scale powder of 0.01 m to 1mm in diameter (oxidized steel coating occurred in cold rolling process of iron and steel mill) that the main component is oxidized steel ( weight 55 to 85% of oxidized steel content) mixed equally with weight 10 to 40% of the flame and heat-resistant silicon rubber.

(The manufacturing process of heating plate using iron scale is that after being removed something foreign such as a piece of iron and stone in iron scale from a iron mill, it heats for 1 to 3 hours in about 300 to 400 "C and its moisture and gas is ignited and removed. And then, after shattering it in 0.01 m to 1mm in diameter with the roller for grinder, it mixes with the flame and heat-resistant silicon rubber equally in a low temperature for silicon rubber not to be thermosetting the roller of mixing according to a certain rate and it is divided into fixed quantities. The divided mixtures are pressed into thermosetting press.

And after being pressed into the first thermosetting press in 160 to 400⁰C , it is pressed into the second one in 300 to 350⁰C , and its purpose is to discharge as combustion of gas contained silicon rubber and iron scale powder or smell of oil and silicon rubber, to raise the function of the heating plate, to have efficiently its thermal conduction, and to raise its thermal resistance.

And the flame and heat-resistant silicon rubber compounded, added silicon rubber to nonflammable materials, like halogen or non halogen, and oxidized inorganic substances has high thermal resistance and nonflammable.)

And the other manufacturing process of the heating plate (D is that weight 60 to 90% of iron scale powder of 0.01 βn to 1 mm in diameter, which has been heated for 1 to 3 hours in 300 to 400^°C and its moisture and gas has been ignited and removed, mixed with weight 10 to 40% of ceramic, and then after it has been pressed and dried in required shape. And it is the heating plate being firing as the first baking in 800 to 900 °C and the second baking in 1000 to 1200 ^°C .

And another manufacturing process of the heating plate (D is that weight 60 to 90% of ferrite powder of 0.01 μm to 1mm in diameter, which has been heated for 1 to 3 hours in 300 to 400⁰C and its moisture and gas has been ignited and removed, mixed with the flame and heat-resistant silicon rubber as a binder. And the manufacturing process is the same process © of the heating plate used iron scale.

In desirable, the heating plate produced by the process © has inexpensive production cost and more excellent efficiency of heating than process © and

Industrial Applicability

The present invention is that if roaster for microwave oven is operated, heat from the heating plate is transmitted to the roast pan and the heating can roast food. The present invention is that as the roast pan and cover of it, as metal materials, can't project microwave, food can't contact with microwave directly. So, the food can be roasted not to dry during cooking and snacks, such as a fried dumpling stuffed with minced pork, frozen pizzas, ham, sausages, scorched rice, or the principal food can cook simply and conveniently by using roaster for microwave oven.

The inside of the present invention is coated as nonstick materials, and as the heating temperature keeps certain rising, it has no inconvenience to spread oil and roast food, like a gas range and the frying pan of an electric stove. And the present invention has a simple manufacturing process, and production cost is reduced, and it has the possibility of mass production in a short period of time. So, the roast pan can be produced by inexpensive cost and binder of iron scale powder is used for heating and heat-resisting silicon rubber. And its measurement is regular by pressing thermosetting press and by heating of the heating plate it has a merit to adapt flexibly to heating expansion of silicon materials. Also, as iron scale, scrapped material, is used for the main material of the heating plate, it has recycling effect.

Claims

[Claims]

[1]

The heating plate being magnetic heating (4,4-a,4-b,4-c) if microwave is absorbed in the underbody of the roast pan (3) is attached, and then the combined structures, which the heating plate is supported closely as insulation support of heating plate (5, 5-a) in the roast pan, combined by inserting in the container of the body (6, 6-a), The present invention is the roaster for microwave oven that forms a group with the cover (2). [2]

In clause 1 , the heating pan (3) doesn't project microwave, and it has a metal material with excellent thermal conductivity. The present invention is the roaster for microwave oven of the characteristic that forms the roast pan frame (31) putting the upper circumferential part and the roast pan groove (32) putting in the small of the back of the body container. [3]

In clause 1 , component parts of the heating plate (4,4-a,4-b,4-c) and the process of manufacture is that after weight 60 to 90% iron scale powder of 0.01 βn to 1mm in diameter, whose the main component is oxidized steel ( weight 55 to 85% of oxidized steel content), mixed with weight 10 to 40% of the flame and heat-resistant silicon rub, whose moisture and gas has been ignited and removed during 1 to 3 hours in 300 to 400°, in a rate of fixed quantities, it is pressed into thermosetting press for 2 to 5 minutes in 160 to 200⁰C with a thickness of 1 to 5mm shape required in the first, and then, the present invention is the roaster for microwave oven of the characteristic that is pressed into the second one for 1 to 3 hours in 300 to 350⁰C .

[4]

In clause 1 , component parts of the heating plate (4,4-a,4-b,4-c) is that after weight 60 to 90% iron scale powder of 0.01 m to 1mm in diameter, whose the main component is oxidized steel ( weight 55 to 85% of oxidized steel content), mixed with weight 10 to 40% of ceramic, whose moisture and gas has been ignited and removed during 1 to 3 hours in 300 to 400°, and then after it has been pressed and dried, the present invention is the roaster for microwave oven of the characteristic that it is the heating plate being firing as the first baking in 800 to 900°C and the second baking in 1000 to 1200⁰C .

[5]

In clause 1 , component parts of the heating plate (4,4-a,4-b,4-c) is that after weight 60 to 90% ferrite powder of 0.01 /m to 1mm in diameter, whose moisture and gas has been ignited and removed during 1 to 3 hours in 300 to 400, mixed with the flame and heat-resistant silicon rubber as a binder, it is pressed into thermosetting press for 2 to 5 minutes in 160 to 200 °C with a thickness of 1 to 5mm shape required in the first, and then, the present invention is the roaster for microwave oven of the characteristic that is pressed into the second one for 1 to 3 hours in 300 to 350°C . [6]

In clause 1 , the present invention is the roaster for microwave oven of the characteristic that the heating plate (4) divided into two parts is attached to the underbody of the roast pan (3).

U] In clause 1 , the present invention is the roaster for microwave oven of the characteristic that the heating plate (4-a) forms one more hole.

[8]

In clause 1 , the present invention is the roaster for microwave oven of the characteristic that the heating plate (4-b) forms a circle shape or doughnut shape. [9]

In clause 1 , the present invention is the roaster for microwave oven of the characteristic that the heating plate (4-c) is the container shape with the structure of the bottom and side. [10] In clause 1 , the present invention is the roaster for microwave oven of the characteristic with noncombustible and insulating materials. And the insulation support of the heating plate (5) attaches the heating plate (4) closely to the underbody of the roast pan (3) to contain and fix to the main entry of the heating plate (51). And it stops transmitting high heat into the container of the body (6) and takes the role for keeping warmth of the roast pan,

[11]

In clause 1 , the present invention is the roaster for microwave oven of the characteristic that the insulation support of heating plate (5-a) forms the bottom support (53) and the side support (54). [12]

In clause 1 , the present invention is the roaster for microwave oven of the characteristic that the container of the body (6, 6-a) projects microwave, and that it is thermoplastics with high thermal resistance.

[13] In clause 1 , the present invention is the roaster for microwave oven of the characteristic that the container of the body (6,6-a) has the left of the cover (61) and the frame of the cover support (62) for the cover (2) to be put without being eccentric. And it has the left of the roast pan frame (63) for the roast pan (3) to combine and one more heat sink (64,64-a) is put for being emitted thermal expansion of air outside in the bottom, and the bottom main part (66) is put to prevent the container of the body (6) from doing damage due to high heating of overheating parts of the heating plate (4,4-a,4-b,4-c).

[14] In clause 1 , the present invention is the roaster for microwave oven of the characteristic that the cover (2) is made of metal materials formed coating with an insulating material in order not to project microwave.

[15]

In clause 1 , the present invention is the roaster for microwave oven of the characteristic that the cover (2) has a material that plates heat-resistant resin with metal not to project microwave.

[16]

In clause 1 , the present invention is the roaster for microwave oven of the characteristic that the handle of the cover (1) projects microwave as thermoplastics with high heat-resisting property.