JP2009106719A - Thermally-insulated wall member for vessel of electromagnetic cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attain overall heating for a vessel of an electromagnetic cooker. <P>SOLUTION: A thermally insulated wall member 18 for the vessel of an electromagnetic cooker has a cylindrical surrounding wall 54 covering the entire outside circumference of the vessel 10 for the electromagnetic cooker with a space apart, wherein the upper opening is an insertion port 56 for inserting the vessel 10 and the lower opening is a bottom exposing port 58 having an opening size larger than the bottom 32 of the vessel 10, and in a combined state where the vessel 10 is inserted inside the wall member, the bottom 32 of the vessel 10 is exposed from the bottom exposing port 58, with the end face 63 on the bottom exposing port side is situated flush with the lower end face 35 of the bottom 32 of the vessel, and an air layer 66 is formed between the circumferential wall 20 of the vessel 10 and the wall member 18. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a device for an electromagnetic cooker that is used when a food to be heated is stored and the stored food is cooked by an electromagnetic cooker.

  2. Description of the Related Art In recent years, an electromagnetic cooker called IH (Induction Heating) is becoming widespread as an appliance used when cooking ingredients by heating, instead of a conventional gas stove. The electromagnetic cooker has (1) no risk of fire due to flame contact because it does not use flames, and (2) there is no risk of oxygen deficiency and carbon monoxide poisoning in the room because there is no combustion. (3) It is said that there is no seizure on the bottom surface of the glass, and therefore, there is an advantage such as cleanliness, and it is widely used not only for business use but also for home use.

  By the way, electromagnetic induction is used for heating the electromagnetic cooker. That is, a coil is disposed inside the electromagnetic cooker, and lines of magnetic force are generated by flowing a high-frequency current through the coil. And, due to the influence of the magnetic field lines generated from the coil, eddy current flows in the conductive material constituting the bottom of the electromagnetic cooker equipment such as a pan placed on the top plate on the coil, and the conductive material having electric resistance The bottom of the container is heated by Joule heat generated by the flow of eddy current, and the food contained in the container is heated.

  As described above, only the bottom of the container in which the eddy current is generated is directly heated by the electromagnetic cooker, and the parts other than the bottom are heated by conduction of the heat of the bottom. . Therefore, the heating by the electromagnetic cooker has a problem that only the bottom of the container becomes high temperature and the whole is not easily heated as compared with the flame covering the whole container. Due to such a problem, for example, when a highly viscous material such as curry is heated using a pan for an electromagnetic cooker, only the portion near the bottom of the pan may boil and the ingredients may be scattered.

  By the way, as an electromagnetic cooker, only metal ones made of stainless steel or iron having conductivity to generate eddy currents and relatively high electric resistance to increase heat generation can be used. The earthenware pots that were not made and were not conductive could not be used as pans for electromagnetic cookers.

  However, pottery earthenware pots have many excellent effects that cannot be obtained with iron pots. For example, the far-infrared rays generated from the heated pottery can obtain substantially the same effect as charcoal grilling, and can pass the fire to the core of the food. In addition, the moisture absorbed by the pottery is thermally vaporized by heating, whereby a steaming effect can be obtained, and loss of moisture in the food can be suppressed. In addition, when a large number of pots are surrounded, the earthenware pot has a better atmosphere than the iron pot. Therefore, there was a great demand to use ceramic items even in an electromagnetic cooker.

  Therefore, the inventor of the present application previously described in Patent Document 1 (Japanese Patent Laid-Open No. 2002-238738) discloses a pottery that can be used in an electromagnetic cooker by disposing a conductive material on the bottom of a pottery-made item. Proposed furniture. According to the present invention, it has become possible to use porcelain utensils that could not be used in the past for electromagnetic cookers, but the pottery utensils described in Patent Document 1 still have room for improvement. Was.

  In other words, since ceramics have a lower thermal conductivity than stainless steel or iron, only the bottom of the container is hot, and it is difficult to warm the whole. . Therefore, in the container described in Patent Document 1, it is difficult to avoid the problem of heat spots because the part formed of pottery is difficult to warm and it takes time to warm the entire container. On the other hand, there is no change in the point that only the bottom of the container is heated even in the metal container, and there is a problem that the heat is deprived and cooled by being exposed to the outside air from the center to the top of the container away from the heat source. There was room for improvement in terms of energy efficiency.

Japanese Patent Laid-Open No. 2002-238738

  Here, the present invention has been made against the background as described above, and the problem to be solved is to realize the overall heating of the appliance for an electromagnetic cooker.

  Hereinafter, embodiments of the present invention made to solve the above-described problems will be described. In addition, the component employ | adopted in each aspect as described below is employable by arbitrary combinations as much as possible.

  That is, the feature of the first aspect of the present invention is that it has a cylindrical peripheral wall that covers the outer periphery of the peripheral wall portion of the electromagnetic cooking utensil so as to be separated over the entire circumference, and the upper opening. Is an insertion port for inserting the electromagnetic cooker utensil, while the lower opening is a bottom exposed port having an opening size larger than the bottom surface of the electromagnetic cooker utensil. In the combined state in which the appliance is inserted, the bottom surface of the electromagnetic cooker appliance is exposed from the bottom exposed port, and the end surface on the bottom exposed port side is positioned on the same plane as the lower end surface of the bottom surface. In the heat insulation wall member of the electromagnetic cooker equipment, an air layer is formed between the peripheral wall portion of the electromagnetic cooker equipment.

  According to the heat insulating wall member according to the present invention, an air layer can be formed between the electromagnetic cooker utensil and the peripheral wall by covering the outside of the electromagnetic cooker utensil with the peripheral wall. Therefore, when the equipment is warmed by the electromagnetic cooker, the air layer is warmed by the heat of the equipment, in particular, the heat of the bottom of the equipment and the heat of the top plate which is in a high temperature state by transferring the heat of the bottom. . And the outer peripheral surface of an electromagnetic cooker thing can be warmed with the heat of this air layer. That is, by surrounding the surroundings of the container with the heat insulating wall member, the heat transferred to the periphery of the bottom can be well spread over the entire periphery of the container, and the container itself is exposed to the outside air due to the heat insulating effect of the air layer. To prevent the heat from being taken away. Thereby, the electromagnetic cooker utensil can be heated substantially entirely, and the foodstuff accommodated in the utensil can be heated entirely. At the same time, the heating time of the electromagnetic cooker can be shortened, so that the cooking time can be shortened. Thus, by using the heat insulating wall member according to the present invention, an excellent heating effect can be obtained, and only the bottom of the electromagnetic cooker equipment inevitably generated in the electromagnetic cooker becomes high temperature, and the whole of the equipment is The problem of difficulty in warming can be advantageously reduced or avoided.

  Furthermore, in the combined state of the electromagnetic cooker utensil and the heat insulating wall member, the end surface on the bottom exposed port side of the heat insulating wall member is positioned on the same plane as the lower end surface of the bottom surface of the electromagnetic cooker utensil. When the container and the heat insulating wall member are placed on the top plate of the electromagnetic cooker in a combined state, both the lower end surface of the electromagnetic cooker item and the end surface on the bottom exposed opening side of the heat insulating wall member are on the top plate. Placed. In particular, the end surface on the bottom exposed port side can be brought into contact with the top plate without any substantial gap over the entire circumference. Thereby, it is possible to catch the heat of the bottom of the electromagnetic cooker utensil and the heat of the top plate without escaping to the outside, and it is possible to warm the air layer more effectively. In addition, the lower end surface of the bottom surface of the electromagnetic cooker utensil means a surface positioned at the lowest end in the electromagnetic cooker utensil. For example, when the bottom surface of the electromagnetic cooker utensil is a flat flat surface, such a bottom surface is used. However, when a leg portion protruding from the bottom surface is formed, the protruding front end surface of the leg portion is the lower end surface of the bottom surface.

  At the same time, the air layer acts as a heat insulating layer, so that the heat in the electromagnetic cooker can be prevented from escaping to the outside. As a result, it is possible to obtain an excellent heat retention effect, and even when heating is stopped, the temperature of the electromagnetic cooker equipment is suppressed from being rapidly lowered, and the equipment is kept at a high temperature for a longer time. I can do it. As a result, for example, even after heating by the electromagnetic cooker is stopped, cooking using the residual heat secured by heating the container can be performed.

  The second aspect of the present invention is characterized in that the heat insulation wall member of the electromagnetic cooker utensil according to the first aspect is formed of earthenware.

  In the heat insulating wall member having the structure according to this aspect, since it is formed of earthenware, it includes many pores and can provide a heat insulating wall member excellent in heat insulation and heat storage. The container can be kept at a high temperature over time. At the same time, since the heat insulating wall member structured according to this embodiment is made of ceramics, it has water absorption, and by heating the heat insulating wall member that has been previously hydrated with a microwave oven, It is also possible to warm the heat insulating wall member before heating. In this case, an air layer can be made into a high temperature state, and the more excellent heating effect and heat retention effect can be acquired.

  In this embodiment, having water absorbency means that microporous holes opened on the surface of the heat insulating wall member by bringing the porous heat insulating wall member into contact with water. It is said that water enters into the water and that the water that has entered is held inside by the action of surface tension or the like.

  According to a third aspect of the present invention, in the heat insulation wall member of the electromagnetic cooker equipment according to the second aspect, the glaze is applied to the substrate before firing, and penetration is formed in the glaze by firing. It is characterized in that water absorption is ensured.

  In the heat insulating wall member structured according to this aspect, water is retained in the penetration by positively forming penetration (cracks formed in the glaze after firing due to the difference in thermal shrinkage between the base and the glaze). Therefore, water absorption can be advantageously ensured. At the same time, by applying glaze to the substrate before firing, the strength of the heat insulating wall member after firing can be increased and the durability can be improved, and the surface can be smoothed to prevent the adhesion of dirt. It can also be reduced.

  According to a fourth aspect of the present invention, in the heat insulation wall member of the electromagnetic cooker utensil according to any one of the first to third aspects, the bottom exposed port is substantially similar to the bottom surface of the electromagnetic cooker utensil. It is said that it is said.

  In the heat insulating wall member having the structure according to the present aspect, the separation distance between the inner peripheral surface of the bottom surface exposed opening and the outer peripheral surface of the bottom portion of the electromagnetic cooker can be made substantially constant over the entire periphery. Thereby, the electromagnetic cooker equipment can be heated substantially uniformly from the entire circumferential direction, and more stable heating with less heat spots can be performed. In addition, when the appliance for an electromagnetic cooker is inserted, the bottom surface of the appliance can be fitted into the bottom exposure port, so that stable assembly can be performed, and the outer peripheral surface of the heat insulating wall member and the bottom of the appliance is substantially constant in the circumferential direction. Since it mounts on the top plate of an electromagnetic cooker with a separation distance, a mounting state can also be stabilized more.

  According to a fifth aspect of the present aspect, there is provided a heat insulation wall member for an electromagnetic cooker item according to any one of the first to fourth aspects, wherein sealing is performed between the peripheral wall portion of the electromagnetic cooker item. Means is provided.

  In the heat insulating wall member structured according to this aspect, the air layer is sealed and isolated from the external space, thereby advantageously preventing the air stored in the air layer from flowing out to the outside. Thereby, it is possible to prevent the heat of the air layer from being released and to more effectively exhibit the heating effect and the heat retaining effect.

  Here, the specific form, material, formation position and the like of the sealing means are not particularly limited. For example, the sealing means can be easily deformed and hermetically sealed. The possible rubber elastic body etc. are used suitably, the aspect which seals between both surfaces by arrange | positioning a rubber elastic body between the inner peripheral surface of the surrounding wall of a heat retaining wall member, and the outer peripheral surface of the electromagnetic cooker utensil etc. Can be suitably employed. However, the sealing means is not necessarily limited to the one that directly seals the space between the inner peripheral surface of the peripheral wall and the outer peripheral surface of the container body. The gap between the peripheral wall and the electromagnetic cooker may be indirectly sealed by sealing the gap between the ceramic cooker and the electromagnetic cooker.

  According to a sixth aspect of the present aspect, in the heat retaining wall member of the electromagnetic cooker item according to any one of the first to fifth aspects, a locking portion for locking the electromagnetic cooker item at the insertion port. Is provided.

  In the heat insulation wall member structured according to this aspect, the relative position in the axial direction of the heat insulation wall member and the electromagnetic cooker equipment in the assembled state is stably positioned by locking the electromagnetic cooker equipment. I can do it. Further, for example, it becomes possible to lift the electromagnetic cooking utensil together with the heat insulating wall member, and the handleability can be improved.

  Also in this aspect, as described in the first aspect, the end face of the bottom surface exposure port in the heat retaining wall member is positioned on the same plane as the bottom end face of the bottom surface of the electromagnetic cooker. Thus, when the electromagnetic cooker utensil is placed on the top plate of the electromagnetic cooker in an assembled state where the electromagnetic cooker utensil is locked by the locking portion, the lower end surface of the electromagnetic cooker utensil and the end surface of the bottom surface exposure opening in the heat retaining wall member Can be placed on the top plate, so that stable placement can be performed, and the bottom plate of the electromagnetic cooker can be maintained in contact with the top plate. The risk of impairing the heating effect is also avoided.

  According to a seventh aspect of the present invention, in the heat insulation wall member of the electromagnetic cooker utensil according to the fifth aspect, a seal rubber is fixed to a latching portion provided at the insertion port for latching the electromagnetic cooker utensil. This is characterized in that the sealing means is configured.

  In the heat insulating wall member having the structure according to this aspect, the sealing means can be formed by skillfully using the engaging portion that is the overlapping portion of the heat insulating wall member and the electromagnetic cooker. Furthermore, since the electromagnetic cooker utensil is pressed against the locking portion by the gravitational action, the electromagnetic cooker utensil can be stably adhered to the seal rubber, and a more stable sealed state can be obtained.

  According to an eighth aspect of the present invention, in the heat insulation wall member of the electromagnetic cooking appliance according to any one of the first to seventh aspects, a vent hole is formed to communicate the air layer and the external space. This is a feature.

  In the heat insulating wall member according to this aspect, when the air in the air layer is heated to a high pressure, the pressure in the air layer can be released through the vent hole. This aspect is suitably used in combination with the sealing means in the fifth aspect and the seventh aspect. That is, as a result of providing the sealing means, the airtightness in the air layer is enhanced. As a result, the air layer may have an excessively high pressure, but by providing the vent hole according to this aspect, the air layer has an excessively high pressure. High pressure can be suppressed.

  According to a ninth aspect of the present invention, in the heat insulation wall member of the appliance for an electromagnetic cooker according to any one of the first to eighth aspects, the cylindrical peripheral wall has water permeability. And

  In the heat insulating wall member having the structure according to the present aspect, moisture is allowed to move between the air layer and the external space, so that the humidity of the air layer can be automatically adjusted. Thereby, it can reduce that the outer peripheral surface of the electromagnetic cooker becomes sticky by water vapor in the air layer. The peripheral wall having water permeability means allowing moisture to move between the space on the inner peripheral side and the space on the outer peripheral side of the peripheral wall in addition to water absorption.

  A tenth aspect of the present invention is characterized in that, in the heat insulation wall member of the appliance for an electromagnetic cooker according to any one of the first to ninth aspects, a handle is provided on the cylindrical peripheral wall. To do.

  In the heat insulating wall member having the structure according to this aspect, the heat insulating wall member can be easily carried by using the handle. Incidentally, the specific shape of the handle is not limited in any way, for example, the shape of the handle used in a conventionally known pan can be appropriately adopted, and is formed to protrude from the outer peripheral surface of the peripheral wall, or A recess that can be hooked with a finger on the outer peripheral surface of the peripheral wall may be provided, and the recess may be used as a handle. Furthermore, the handle may be formed integrally with the peripheral wall, or may be formed separately from the peripheral wall and fixed integrally to the peripheral wall.

  According to an eleventh aspect of the present invention, in the heat retaining wall member for an electromagnetic cooking appliance according to any one of the first to tenth aspects, the upper opening is opened in a concave shape upward. The present invention is characterized in that a concave opening is formed in which a handle for an electromagnetic cooker can be inserted.

  In the heat insulating wall member having the structure according to this aspect, the outer peripheral surface of the electromagnetic cooker can be covered with the peripheral wall so as to avoid the handle of the electromagnetic cooker. Thereby, it can be advantageously applied to, for example, a pan provided with a handle.

  According to a twelfth aspect of the present invention, in the heat insulating wall member of the electromagnetic cooker pan according to any one of the first to eleventh aspects, the dimension of the air layer in the axial direction is the entire axial direction. It is characterized by being substantially constant over the entire circumference.

  In the heat insulating wall member structured according to this aspect, the size of the air layer is substantially constant over the entire outer periphery of the electromagnetic cooking utensil, so the outer peripheral surface of the electromagnetic cooking utensil is approximately equal. Heating can be performed, and substantially uniform heating can be performed while suppressing the occurrence of heat spots.

  According to a thirteenth aspect of the present invention, in the heat insulating wall member of the electromagnetic cooker pan according to any one of the first to twelfth aspects, the maximum dimension in the axial direction of the air layer is 20 mm or less. It is characterized by being.

  In the heat insulating wall member having the structure according to this embodiment, an excellent heating effect and heat insulating effect can be advantageously obtained. That is, by setting the maximum dimension in the axial direction of the air layer to 20 mm or less, it is possible to obtain a size that can sufficiently heat the air layer, and an effective heating effect and heat retaining effect can be obtained.

  According to a fourteenth aspect of the present invention, in the heat insulation wall member of the electromagnetic cooker pan according to any one of the first to thirteenth aspects, the lower opening is covered to cover the electromagnetic cooking. A lower lid member that forms a lower air layer with the bottom surface of the device is provided.

  In the heat insulating wall member having the structure according to this aspect, a lower air layer is formed on the lower side of the bottom surface of the electromagnetic cooker. And since this lower side air layer acts as a heat insulation layer, even after taking down the electromagnetic cooker equipment from the electromagnetic cooker, the high temperature state of the bottom surface can be maintained longer. Thereby, the high temperature state of the electromagnetic cooker can be kept longer, and cooking such as steaming can be performed more advantageously. In this aspect, a sealing member that seals between the overlapping surfaces of the lower opening and the lower lid member may be provided. If it does in this way, the airtightness of a lower air layer can be improved, and the high temperature state of an electromagnetic cooker thing can be maintained for a long time by extending a lower air layer.

  A first aspect of the present invention relating to an electromagnetic cooking utensil is an electromagnetic cooking utensil provided with a bottomed container body that contains food and a lid member that is assembled to the container body and covers the opening of the container body. The heat insulation wall member of the electromagnetic cooking appliance according to any one of the first to fourteenth aspects is provided, and the bottom wall dew on the heat insulation wall member is obtained by combining the heat insulation wall member and the container body. The bottom surface of the container main body is exposed from the outlet, and the end surface of the heat insulating wall member on the bottom surface exposure port side is positioned on the same plane as the lower end surface of the container main body, and the peripheral wall portion of the container main body and the heat insulating material A first air layer is formed between the wall member and the wall member.

  In the electromagnetic cooker equipment having the structure according to the present aspect, by providing the heat retaining wall member according to any one of the first to fourteenth aspects, the heating effect and the heat retaining effect as described above can be obtained. I can do it. As a result, the container body can be heated as a whole, and the problem that only the bottom part, which has been a problem in the electromagnetic cooking utensils, becomes hot and the other parts are hardly heated is advantageously reduced or eliminated. I can do it.

  According to a second aspect of the present invention relating to an electromagnetic cooking utensil, in the electromagnetic cooking appliance according to the first aspect, the lid member includes an inner lid and an outer lid, and the inner lid and the outer lid Each outer peripheral edge of the lid is placed on the opening of the container body, and the inner lid and the outer lid are combined with the container body in a state where the inner lid and the outer lid are overlapped with each other. A second air layer separated from the first air layer is formed between the overlapping surfaces.

  In the electromagnetic cooker utensil structured according to this aspect, in addition to the first air layer, a second air layer is formed in the opening of the container body. Thereby, when the 2nd air layer acts as a heat insulation layer, it can suppress advantageously that the heat | fever in a container main body is escaped from an opening part. Therefore, according to this aspect, the outer peripheral side of the container body is kept warm by the first air layer formed by the heat insulating wall member, and the opening of the container body is formed by the second air layer formed by the inner and outer lid members. The side is kept warm. And the bottom part side of the container main body is directly heated by the electromagnetic cooker. Thus, according to this aspect, the container body can be heated or kept warm so as to wrap the container body from almost all directions, and more excellent heating effect and heat keeping effect can be obtained.

  According to a third aspect of the present invention relating to an electromagnetic cooking utensil, in the electromagnetic cooking utensil according to the second aspect, a flange-shaped support portion is formed at an opening peripheral edge of the container body, and the inner lid is The outer cover is supported by being overlapped with the inner peripheral portion of the support portion, and the outer lid is supported by being overlapped with the outer peripheral portion of the support portion.

  In the electromagnetic cooker equipment having the structure according to this aspect, the inner lid and the outer lid can be easily assembled to the container body. At the same time, a wide area between the opposed surfaces of the inner lid and the outer lid can be secured, and the second air layer can be advantageously formed.

  According to a fourth aspect of the present invention relating to an electromagnetic cooking utensil, in the electromagnetic cooking appliance according to the second or third aspect, the first steam vent is formed in the inner lid. An internal space of the container body is communicated with the second air layer through a hole, and a second steam vent hole is formed in the outer lid, and the second air is formed through the second steam vent hole. The layers are communicated with the external space, and the first steam vent hole and the second steam vent hole are provided at different positions in the circumferential direction of the inner lid and the outer lid. And

  In the electromagnetic cooker equipment structured according to this aspect, by adjusting the circumferential positions of the first steam vent hole and the second steam vent hole, it is possible to appropriately release the pressure in the container body through these steam vent holes. It is possible to advantageously realize quick cooking of food by pressurization in the container.

  According to a fifth aspect of the present invention relating to an electromagnetic cooking utensil, in the electromagnetic cooking utensil according to the first to fourth aspects, the container body is formed of earthenware, and the bottom of the container body is electrically conductive. By disposing the material, the bottom surface of the container body is made of the conductive material, while the lid member is formed of earthenware.

  In the electromagnetic cooker equipment having the structure according to this aspect, since the conductive material is disposed at the bottom of the container body, it is disposed at the bottom when it is placed on the electromagnetic cooker and heating is started. Eddy currents are generated in the conductive material. Thereby, even if the container main body is formed of earthenware, it is possible to heat the bottom, and it is possible to use earthenware-made items for an electromagnetic cooker.

  Furthermore, in this aspect, the container main body can be heated entirely by providing the heat insulating wall member. Thereby, the part formed with the earthenware with low heat conductivity can also be heated effectively, and it becomes possible to heat the whole container effectively.

  And especially in this aspect, since the container main body and the lid member are formed of earthenware and have water absorption, when the container main body and the lid member are heated, the moisture contained in them is Vaporized and discharged to flow into the container body. Thereby, the risk of losing moisture of the food in the container body and drying is advantageously reduced, and it can be suitably used for, for example, steamed dishes. Furthermore, since the heat retaining effect is obtained by providing the heat retaining wall member, it is possible to suppress the rapid temperature drop of the container main body after the heating is stopped and to perform steaming using residual heat more effectively.

  According to a sixth aspect of the present invention relating to an electromagnetic cooking utensil, carbon is used as the conductive material in the electromagnetic cooking appliance according to the fifth aspect. In the electromagnetic cooker equipment having the structure according to this aspect, the core of the food can be gently heated by the far infrared rays emitted from the heated carbon. Preferably, carbon having a coefficient of thermal expansion substantially equal to that of the pottery constituting the container body is employed as the carbon in this embodiment. In this way, even if the container main body is heated and the container main body and the carbon are expanded, the risk of creating a gap or the like at the joint between the carbon and the container main body can be reduced.

  According to a seventh aspect of the present invention relating to an electromagnetic cooker, in the electromagnetic cooker according to the fifth or sixth aspect, before the container body and the lid member are fired, On the other hand, the glaze is glazed, and penetration of the glaze is formed by firing to ensure water absorption of the container body and the lid member.

  In the appliance for an electromagnetic cooker having a structure according to this aspect, water can be retained in the penetration by positively forming the penetration, so that water absorption can be advantageously ensured. At the same time, by applying glaze to the substrate before firing, the strength of the heat insulating wall member after firing can be increased and the durability can be improved, and the surface can be smoothed to prevent the adhesion of dirt. It can also be reduced.

  An eighth aspect of the present invention relating to an electromagnetic cooker item is characterized in that, in the electromagnetic cooker item according to any one of the fifth to seventh aspects, the container body has water permeability. To do.

  In the electromagnetic cooker equipment structured according to this aspect, by having water permeability that allows the movement of moisture inside and outside the container body, the humidity in the container body can be automatically adjusted, Drying of ingredients due to insufficient humidity and stickiness due to excessive humidity can be suppressed.

According to a ninth aspect of the present invention relating to an electromagnetic cooking utensil, in the electromagnetic cooking appliance according to any one of the fifth to eighth aspects, the bulk density of the container body and the lid member in a dry state is 1. It is characterized by being 0.0 g / cm ^{3 to} 2.0 g / cm ³ .

In the electromagnetic cooker equipment structured according to this aspect, the container body and the lid member can ensure both sufficient water absorption and heat retention, and the durability of the container body and the lid member can be advantageously increased. Can be secured. That is, if the bulk density is less than 1.0 g / cm ³ , the strength of the pottery is lowered. On the other hand, if the bulk density is greater than 2.0 g / cm ³ , sufficient water absorption and moisture retention may not be obtained. There is.

  According to a tenth aspect of the present invention relating to an electromagnetic cooking utensil, in the electromagnetic cooking utensil according to any one of the first to ninth aspects, the wall thickness of the container body is 10 mm to 15 mm. Is a feature.

  In the appliance for an electromagnetic cooker having a structure according to this aspect, effective strength can be obtained, and effective water absorption can be secured while suppressing an increase in weight. That is, if the wall thickness is smaller than 10 mm, the container body may be thinned and the strength may be reduced, and the water content may be reduced due to the thin wall thickness, while the wall thickness is less than 15 mm. If it is large, the container body may become heavy. In addition, the thickness dimension of a container main body means the average value of the thickness dimension of the main-body part except a handle etc., for example.

  The eleventh aspect of the present invention relating to an electromagnetic cooker is the container main body according to any one of the first to tenth aspects, wherein the container main body is formed by a leg protruding from the bottom surface of the container main body. The lower end surface of the container body is configured, and the bottom surface of the container main body is separated from the flat surface in a mounted state on the flat surface.

  In the appliance for an electromagnetic cooker structured according to this aspect, when the container main body is placed on the top plate of the electromagnetic cooker, the bottom surface of the container main body is separated from the top plate. Thereby, the possibility that the bottom surface of the container body becomes too hot during heating and the heating is automatically interrupted by the sensor of the electromagnetic cooker can be reduced. In addition, this aspect is advantageously used by combining with the electromagnetic cooker equipment made into the structure according to the said 6th aspect. That is, since the bottom of the container body is made of carbon, the far-infrared effect of carbon acts to stop the sensor. Therefore, by separating the carbon from the top plate of the electromagnetic cooker using the structure according to this embodiment, the sensor reacts sensitively before reaching the target temperature and heating is interrupted. Or can be avoided. Here, it is preferable that the separation distance of the bottom surface of the container body is 1.0 mm to 3.0 mm. That is, when the separation distance is smaller than 1.0 mm, it is substantially the same as placing the bottom surface of the container body in contact with the top plate of the electromagnetic cooker, while the separation distance is more than 3.0 mm. If it is too large, the electromagnetic cooker may not operate due to being too far from the top plate. In addition, as long as a leg part and a container main body can be stably mounted on a top plate and the desired effect is acquired, arbitrary shapes can be employ | adopted. For example, a shape that protrudes in the center of the bottom with a circular or rectangular cross-sectional shape, or a shape that protrudes continuously or discontinuously to the periphery can be adopted. Furthermore, you may form with the several leg part extended in a grid | lattice form or stripe form.

  A twelfth aspect of the present invention relating to an electromagnetic cooker is characterized in that it is used as a rice cooker for an electromagnetic cooker in the electromagnetic cooker according to any one of the fifth to eleventh aspects. To do.

  A thirteenth aspect of the present invention relating to an electromagnetic cooker article is the electromagnetic cooker article according to any one of the fifth to twelfth aspects, wherein the container body has a peripheral wall portion and the heat retaining wall member. A heat conduction promoting wall is provided on at least one of the first air layer formed on the outer peripheral surface of the container body, the outer peripheral surface of the peripheral wall portion of the container body, and the inner peripheral surface of the heat retaining wall member. .

  In the appliance for an electromagnetic cooker structured according to this aspect, the heat conduction promoting wall is provided by making good use of the formation portion of the first air layer. With such a heat conduction promoting wall, the heat of the bottom of the electromagnetic cooker utensil and the heat of the top plate can be advantageously transmitted to the upper side of the utensil. Here, in order to advantageously obtain a high heat conduction effect, the heat conduction promoting wall is preferably made of a metal having high heat conductivity, such as copper, stainless steel, and aluminum. In addition, by forming a heat conduction promoting wall with an IH compatible material such as copper or stainless steel that advantageously generates Joule heat due to eddy currents, induction heating by an electromagnetic cooker can also be used for heating above the main body of the equipment, Further vessel tops and thus overall heating can be promoted. The heat conduction promoting wall may be formed as a separate cylindrical body disposed in the first air layer, and may be formed by thermal spraying or the like on the outer peripheral surface of the peripheral wall portion of the container body and / or the You may adhere to the internal peripheral surface of a heat insulating wall member. In order to maintain the promotion of electrothermal property by convection of air by the first air layer, a through hole or a mesh part is provided in a part of the heat conduction promoting wall of the cylindrical body, or the cylindrical body It is preferable to make the height dimension smaller than the height dimension of the first air layer and provide a communication space in the upper part. Further, when the heat conduction promoting wall is formed by thermal spraying or the like, it is formed so as to maintain the water permeability of the outer peripheral surface of the peripheral wall portion of the container body and the inner peripheral surface of the heat retaining wall member.

  According to a fourteenth aspect of the present invention relating to an electromagnetic cooking utensil, in the electromagnetic cooking appliance according to the thirteenth aspect, the heat conduction promoting wall is formed as a cylindrical body made of metal, and the container A gap is provided between the peripheral wall portion of the main body and the heat insulating wall member. By making the heat conduction promoting wall a metallic cylindrical body, the heat conduction promoting wall can be easily formed, and only by arranging the cylindrical body in the first air layer, the present invention is applied. It is possible to easily achieve heating promotion of the electromagnetic cooker. In addition, as a metal material, a material having relatively high thermal conductivity such as copper, stainless steel, and aluminum is preferable. Moreover, in order to make it easy to receive the influence of the eddy current of an electromagnetic cooking device, it is preferable to extend at least one part to the bottom vicinity of a container for the lower end part of the cylindrical body which consists of an IH corresponding material.

  In the electromagnetic cooker equipment that is structured according to this aspect, it is possible to perform sufficient steaming required for rice cooking, and it is possible to advantageously perform rice cooking that was conventionally difficult with an electromagnetic cooker. I can do it. That is, for cooking rice, a steaming process using residual heat is important. However, in the electromagnetic cooker according to the conventional structure, only the bottom surface of the container main body is mainly heated, and the entire container is hardly heated. Therefore, when the heating of the electromagnetic cooker is stopped, the overall temperature of the container body is quickly reduced, and it is difficult to sufficiently retain the residual heat. However, in the electromagnetic cooker equipment having the structure according to this aspect, the container body can be heated as a whole by providing the heat retaining wall member, and an excellent heat retaining effect can be obtained. Can be maintained at a high temperature, and steaming due to residual heat can be sufficiently performed. Thereby, it becomes possible to perform rice cooking advantageously.

  Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described in detail with reference to the drawings.

  First, FIG. 1 to FIG. 6 show an electromagnetic cooker device 10 as an electromagnetic cooker device according to a first embodiment of the present invention. The electromagnetic cooker device 10 includes a container body 12 that contains food as a cooking object, and a container body 16 that is attached to the container body 12 and includes a lid member 14 that closes the opening of the container body 12. The first embodiment of the present invention is configured to be in a semi-accommodated state inserted into a heat retaining cover 18 as a heat retaining wall member. In the following description, the vertical direction refers to the vertical direction in FIG. 1 that is the vertical vertical direction in use. In the following description, the axial direction refers to the vertical direction in FIG.

  More specifically, the container body 12 is formed of a porous ceramic having a large number of minute spaces opened on the surface. As shown in FIG. 5, the container body 12 has a substantially bottomed cylinder in which a bottom member 30 having a substantially disk shape is integrally fixed to a lower end opening 21 of a cylindrical peripheral wall 20 that opens on both upper and lower sides. It has a shape and has an opening 23 that opens upward. And the surrounding wall part 20 of the container main body 12 is gradually thickened as it goes to the opening part 23, and the internal diameter is made small. Further, a flange-like portion 24 is integrally formed on the outer peripheral edge portion of the opening 23 of the container body 12 as a support portion protruding outward in the radial direction over the entire circumference. Further, a stepped portion 26 is continuously formed on the inner peripheral edge of the flange-like portion 24 over the entire circumference, and the outer peripheral edge of the flange-like portion 24 extends upward in the axial direction. A cylindrical positioning portion 28 is integrally formed.

  A bottom member 30 as a conductive material is fixed to the lower end opening 21 of the peripheral wall 20. The bottom member 30 has a substantially disk shape with a slightly smaller diameter from the axially intermediate portion. Here, as the conductive material constituting the bottom member 30, a member having a relatively large electrical resistance that generates eddy currents by induced electromotive force is preferably employed. For example, stainless steel or iron can be employed. In the embodiment, the bottom member 30 is made of carbon, and further, a member having the same thermal expansion coefficient as that of the porous ceramic that forms the peripheral wall portion 20 is employed. Then, the bottom member 30 is inserted through the opening 23 of the peripheral wall 20 with the small diameter side down, and the step-shaped engagement formed at the inner peripheral edge of the lower end opening 21 of the peripheral wall 20. By fitting into the joint portion 33, the lower end opening 21 is sealed in a watertight manner, and the bottom surface 32 of the container body 12 is constituted by the bottom member 30.

  Furthermore, as shown in FIG. 4, a plurality of (four in the present embodiment) leg portions 34 are integrally formed on the bottom surface 32 so as to slightly protrude downward. The leg portions 34 are substantially fan-shaped in a front view of the bottom surface 32, and are formed at equal intervals in the circumferential direction of the bottom surface 32 at a position where the outer peripheral edge portion of the arc shape is overlapped with the outer peripheral edge portion of the bottom surface 32. Has been. Thereby, in this embodiment, the protrusion end surface 35 of the leg part 34 is made into the lower end surface of the bottom face 32 of the container main body 12. FIG. The leg 34 is formed by cutting the bottom surface 32 of the bottom member 30 while leaving a portion corresponding to the leg 34. Here, it is preferable that the height dimension of the leg part 34 shall be 1.0 mm-3.0 mm. When the height dimension of the leg portion 34 is smaller than 1.0 mm, the height dimension is substantially the same as that the bottom surface 32 is placed in contact with the top plate of the electromagnetic cooking device. It is because there exists a possibility that an electromagnetic cooker may not operate | move when it is larger than 3.0 mm because it leaves | separates too much from a top plate. And the bottom member 30 made into such a structure is fixed to the lower end edge of the peripheral wall part 20, so that the lower end opening of the peripheral wall part 20 is covered with a watertight cover.

In addition, the average value of the wall thickness dimension of the container body 12: T ₁ is preferably 10 mm ≦ T ₁ ≦ 15 mm, more preferably 11 mm ≦ T ₁ ≦ 13 mm. T ₁ is set to 12 mm. This is because if it is covered and T ₁ is too small, it is difficult to ensure sufficient heat retention and durability, while if T ₁ is too large, the mass of the container body 12 may increase. . Here, T ₁ refers to the average value of the thickness of the container body 12 excluding the flange-like portion 24 and the leg portion 34.

  And the opening part 23 of the container main body 12 made into such a structure is constructed so that the lid member 14 is assembled and covered. The lid member 14 includes an inner lid 36 and an outer lid 38, and both the inner and outer lids 36 and 38 are formed of porous ceramics having continuous pores, as in the case of the container body 12. . The inner lid 36 has a generally circular dish shape as a whole, and has a central portion raised so as not to exceed the height position of the outer peripheral edge. An arch-shaped grip 40 is integrally formed at the center of the upper surface of the inner lid 36. Further, a flange-like locking piece 42 that extends outward in the radial direction over the entire circumference is integrally formed on the outer peripheral edge portion of the inner lid 36. As shown in FIGS. 3 and 5, the inner lid 36 is formed with a steam vent inner vent hole 44 as a first steam vent hole that penetrates the inner lid 36 in the thickness direction. Yes. In the present embodiment, as indicated by broken lines in FIG. 3, the pair of inner vent holes 44, 44 are formed so as to face each other across the handle portion 40 in one radial direction.

The average value of the thickness of the inner lid 36: T ₂ is preferably 10 mm ≦ T ₂ ≦ 15 mm, and more preferably 11 mm ≦ T ₂ ≦ 13 mm. ₂ = 12 mm. If T ₂ is too small, it may be difficult to ensure sufficient heat retention and durability, while if T ₂ is too large, the mass of the inner lid 36 may increase. . In the present embodiment, the inner lid 36 is thicker than the container main body 12, and the inner lid 36 is advantageously prevented from being lifted upward by the pressure in the container. Thereby, at the time of the heating cooking mentioned later, it can prevent advantageously that the pressure in a container falls and can implement | achieve quick cooking. T ₂ is an average value of the thickness of the inner lid 36 excluding the handle 40 and the like.

  On the other hand, the outer lid 38 has a substantially circular dish shape in the reverse direction, and a handle portion 46 is formed integrally with the center portion of the upper surface so as to face a plate shape that protrudes upward and extends over a half circumference. Is formed. Here, as shown in FIG. 3, the outer lid 38 is formed with a steam vent outer vent hole 48 as a second steam vent hole that penetrates the outer lid 38 in the thickness direction. As shown in FIG. 3, the outer vent hole 48 is provided at a position spaced apart from the pair of inner vent holes 44, 44 formed in the inner lid 36 in the circumferential direction under an assembled state described later. In this embodiment, the outer vent hole 48 is positioned at a position substantially perpendicular to the radial direction of the pair of inner vent holes 44, 44 facing each other.

Moreover, the average value of the wall thickness dimension of the outer lid 38: T ₃ is preferably 5 mm ≦ T ₃ ≦ 10 mm, and more preferably 6 mm ≦ T ₃ ≦ 8 mm. ₃ = 7 mm is set. If T ₃ is too small, it is difficult to ensure sufficient heat retention and durability, whereas if T ₃ is too large, the mass of the outer lid 38 may increase. . Here, T ₃ is an average value of the thickness of the outer lid 38 excluding the handle portion 46. As with the inner lid 36, the outer lid 38 may be thicker than the container main body 12, and the escape of pressure in the container main body 12 may be more advantageously prevented.

  The container body 12, the inner lid 36, and the outer lid 38 are all made of porous earthenware, and have a water absorption property for containing and holding water in the internal microspace by contact with water. It is possible to hold water inside by being immersed in water. Further, particularly in the present embodiment, the container main body 12, the inner lid 36 and the outer lid 38 all have water absorption on both the inner and outer surfaces, and water can be taken into the inside from both the inner and outer surfaces. And has water permeability that allows moisture to move between the inner peripheral region and the outer peripheral region.

These container body 12, a bulk density in the dry state of the inner lid 36 and outer lid 38, it is desirable that there is a ^{1.0g / cm 3 ~2.0g / cm 3} , more preferably 1. It is ^{0g / cm 3 ~1.5g / cm 3} . In this embodiment, the bulk density of the container body 12, the inner lid 36, and the outer lid 38 is 1.5 g / cm ³ . If it is covered and the bulk density is less than 1.0 g / cm ³ , durability may not be sufficiently obtained, and if it is greater than 2.0 g / cm ³ , desired water permeability and heat retention can be obtained. This is because there is a risk that it will be difficult to be taken. The bulk density refers to the volume of the container body 12 or the inner and outer pots 36 and 38 itself, the volume of minute open pores that open on the surface of the container body 12 or the inner and outer pots 36 and 38 that are made porous, The density calculated by adopting the total value of the volume of the minute closed pores formed inside the container main body 12 or the inner and outer pots 36 and 38 as the volume.

  Furthermore, in this embodiment, the container main body 12 and the inner and outer lids 36 and 38 are glazed over substantially the entire substrate before firing. Thereby, the mechanical strength of the container main body 12 and the inner and outer lids 36 and 38 can be increased, and adhesion of dirt can be prevented by coating and smoothing the surface with a glassy glaze. In the present embodiment, in order to effectively obtain water permeability or air permeability of the container body 12 and the inner and outer lids 36, 38, a general glaze such as kisedo candy or powder drawing candy is used as an appropriate liquid such as water. It is used as a glaze. By adopting such a low-concentration glaze, it is possible to prevent all of the minute holes that are open to the surfaces of the container body 12 and the inner and outer lids 36 and 38 from holding water and are blocked by the glaze. Therefore, it is considered that the water permeability is effectively maintained. Moreover, in this embodiment, what mixed the radium ore grind | pulverized in the powder form with the general glaze diluted with water is employ | adopted, and the negative ion effect by radium ore can also be anticipated. Furthermore, in the present embodiment, the container body 12 and the inner and outer lids 36 and 38 are penetrated through penetration by positively penetrating the bowl (cracking of the bowl caused by the difference in shrinkage between the glaze and the base during firing). The water absorption is ensured.

  The inner lid 36 and the outer lid 38 having such a structure are both assembled to the container body 12 as shown in FIGS. That is, the locking piece 42 formed on the outer peripheral edge portion of the inner lid 36 is fitted and overlapped with the stepped portion 26 formed on the inner peripheral portion of the opening 23 of the container body 12 from above. Thus, the inner lid 36 is placed on the container main body 12 and is disposed so as to spread in the direction perpendicular to the axis at the opening 23 of the container main body 12. Furthermore, the outer peripheral edge of the outer lid 38 is superimposed on the flange-like portion 24 formed on the outer peripheral side of the opening 23 of the container main body 12 from above, so that the outer lid 38 is attached to the container main body 12. The container body 12 is placed so as to cover the upper part of the opening 23 of the container body 12. Thereby, both the inner lid 36 and the outer lid 38 are disposed so as to cover the opening 23 of the container body 12, and the inner lid 36 and the outer lid 38 constitute the lid member 14 in the present embodiment. It has become.

  In this embodiment, the inner lid 36 is easily fitted in the radial direction by being fitted into the stepped portion 26, and the outer lid 38 is fitted on the inner peripheral side of the positioning portion 28. By being inserted, it is easily positioned in the radial direction. In the present embodiment, since both the inner lid 36 and the outer lid 38 have water permeability, the inner lid 36 and the outer lid 38 are opposed to each other under the assembled state of the inner lid 36 and the outer lid 38. All the surfaces are surfaces having water absorption.

  In the state where the inner lid 36 and the outer lid 38 are attached to the container body 12, the inner lid 36 is positioned to be spaced downward with respect to the outer lid 38, so that the inner lid 36 and the outer lid 38 are They are spaced apart in the vertical direction over substantially the whole. Thus, a continuous space is provided between the opposing surfaces of the inner lid 36 and the outer lid 38, and an upper air layer 52 as a second air layer is formed by the space.

  The upper air layer 52 is separated from the space in the container and the external space by the cooperation of the inner lid 36, the outer lid 38 and the container body 12. In the present embodiment, the inner lid 36 and the outer lid 38 are placed on the inner peripheral edge portion and the outer peripheral edge portion of the container body 12, respectively, and between the opposing surfaces of the inner lid 36 and the outer lid 38. The upper air layer 52 is formed over a wider range. Further, the upper air layer 52 is communicated with the inside of the container through an inner vent hole 44 formed in the inner lid 36, and enters the external space through an outer vent hole 48 (see FIG. 3) formed in the outer lid 38. Communicated.

  The container main body 16 including the container main body 12 and the inner and outer lids 36 and 38 is inserted into the heat retaining cover 18 in a semi-accommodating state. 7 to 10 show the heat insulating cover 18. The heat insulating cover 18 is formed of a porous ceramic having a large number of minute spaces opened on the surface, like the container body 12 and the like.

  The heat insulating cover 18 has a substantially cylindrical peripheral wall portion 54 having an inner diameter dimension that is larger than the outer diameter size of the peripheral wall portion 20 of the container main body 12 and smaller than the outer diameter size of the flange-shaped portion 24 of the container main body 12. Yes. The peripheral wall portion 54 is open at both ends in the axial direction (vertical direction in FIG. 5), and the upper opening portion serves as an insertion port 56, while the lower opening portion serves as a bottom surface exposure port. 58. A pair of handles 60 that are opposed to each other in the radial direction of the peripheral wall portion 54 and project outward in the radial direction are formed integrally with the peripheral wall portion 54 on the outer peripheral surface of the insertion port 56. On the other hand, the bottom surface exposure port 58 has a substantially similar shape that is slightly larger than the bottom surface 32 of the container body 12, and has a diameter that is slightly larger than the diameter of the bottom surface 32 of the container body 12 in this embodiment. It is opened with a circular shape.

Here, the average value of the thickness dimension of the heat insulating cover 18: T ₄ is preferably 10 mm ≦ T ₄ ≦ 15 mm, and more preferably 11 mm ≦ T ₄ ≦ 13 mm. ₄ = 12 mm. If the lid is covered and T ₄ is too small, it is difficult to ensure sufficient heat retaining power and durability. On the other hand, if T ₄ is too large, the mass of the heat insulating cover 18 may be increased. . Here, T ₄ is an average value of the thickness of the heat insulating cover 18 excluding the handle 60 and the like.

  The heat insulating cover 18 is made of porous ceramics like the container main body 12 and the like, and has a water absorption property for storing and holding water in a minute space inside by contact with water. . Accordingly, it is possible to retain water inside the heat insulating cover 18 by immersing the heat insulating cover 18 in water. Further, particularly in the present embodiment, the heat insulating cover 18 has water absorption on both the inner and outer surfaces, so that water can be taken into the inner and outer surfaces from the inner and outer regions and the outer peripheral side. It has water permeability that allows moisture to move between these regions.

The bulk density in the dry state of a heat insulating cover 18 is desirably are as ^{1.0g / cm 3 ~2.0g / cm 3} , more preferably, 1.0 g / cm ³ to 1.5 g / Cm ³ . In this embodiment, the bulk density of the heat insulating cover 18 is 1.3 g / cm ³ . If it is covered and the bulk density is less than 1.0 g / cm ³ , durability may not be sufficiently obtained, and if it is greater than 2.0 g / cm ³ , desired water permeability and heat retention can be obtained. This is because there is a risk that it will be difficult to be taken.

  Further, in the heat insulating cover 18, as in the case of the container main body 12 and the like, the glaze is applied over substantially the entire substrate before firing, so that the mechanical strength is increased and the adhesion of dirt is prevented. It can be prevented. Furthermore, in this embodiment, the water absorption of the heat insulating cover 18 is ensured through penetration by positively causing penetration into the bag.

  Then, as shown in FIG. 6, the container body 12 of the container body 16 is inserted from the bottom surface 32 into the insertion port 56 of the heat insulation cover 18 having such a structure. It comes to be combined. In such an assembled state, the lower end surface of the flange-like portion 24 of the container body 12 is locked to the upper end surface 62 of the insertion port 56 of the heat retaining cover 18. In this embodiment, the upper end surface 62 The latching | locking part is comprised by. Thereby, the main body 16 and the heat insulation cover 18 are detachably combined in a state where the main body 16 and the heat insulation cover 18 are arranged on the same central axis, and the electromagnetic cooker equipment 10 in the present embodiment is constituted by the main body 16 and the heat insulation cover 18. Has been.

  In this assembled state, the bottom surface 32 of the container main body 12 is exposed to the outside through the bottom surface exposure port 58 of the heat insulating cover 18, and the protruding end surface 35 of the leg 34 in the container main body 12 is exposed to the bottom surface of the heat insulating cover 18. The lower end surface 63 which is the end surface on the outlet 58 side is positioned on the same plane. Moreover, in this embodiment, since the container main body 12 and the heat insulating cover 18 are both permeable, the container main body 12 and the heat insulating cover 18 are opposed to each other in the assembled state of the container main body 12 and the heat insulating cover 18. All the surfaces are surfaces having water absorption. In particular, in the present embodiment, a positioning portion 64 that slightly protrudes inward over the entire circumference is formed on the inner peripheral surface of the peripheral wall portion 20 of the heat insulating cover 18 at a position slightly below the upper edge. Has been. The container body 12 is positioned in the radial direction with respect to the heat retaining cover 18 by the positioning portion 64. However, the inner diameter dimension of the positioning part 64 is slightly larger than the outer diameter dimension of the container main body 12, and in the assembled state to the heat insulating cover 18, the positioning part 64 is not between the outer peripheral surface of the container main body 12. A small gap can be formed over the entire circumference.

  Under the assembled state of the heat insulating cover 18 and the container main body 12, the peripheral wall portion 54 of the heat insulating cover 18 is positioned apart from the peripheral wall portion 20 of the container main body 12 on the outer peripheral side over the entire circumference. The lower end surface of the flange-shaped portion 24 of the container body 12 is locked by the upper end surface 62 of the heat retaining cover 18. Thereby, the insertion port 56 of the heat insulating cover 18 is covered with the container body 12, and the first air layer is formed between the inner peripheral surface of the peripheral wall portion 54 of the heat insulating cover 18 and the peripheral wall portion 20 of the container main body 12. The outer peripheral air layer 66 is formed.

  The outer air layer 66 is continuously formed over the entire surface between the heat insulating cover 18 and the opposed surfaces of the container body 12. In particular, in this embodiment, the dimension of the outer air layer 66 in the direction perpendicular to the axis is the heat insulating temperature. The cover 18 is substantially constant over the entire axial direction (vertical direction in FIG. 5). Here, the maximum dimension of the outer air layer 66 in the direction perpendicular to the axis is preferably 20 mm or less, and in this embodiment, it is preferably 15 mm. When the maximum dimension in the axial direction of the outer air layer 66 is larger than 20 mm, the outer air layer 66 becomes too large, and the outer air layer 66 is not easily heated during heating, which will be described later. This is because it becomes difficult to obtain an effective heating effect and heat retaining effect.

  The outer air layer 66 is formed on the outer peripheral side in the axial direction of the container body 12, while the upper air layer 52 is formed by the inner lid 36 and the outer lid 38 and the flange-shaped portion 24 of the container body 12. The outer air layer 66 is formed separately from each other, and the outer air layer 66 and the upper air layer 52 are not communicated with each other and are made independent from each other. In the present embodiment, the lower end surface of the flange-like portion 24 of the container main body 12 is superimposed on substantially the entire upper end surface 62 of the heat insulating cover 18 in a state where the container main body 12 is assembled to the heat insulating cover 18. Thus, the upper end surface 62 and the flange-like portion 24 are substantially in close contact with each other. However, since the heat insulating cover 18 and the container body 12 in the present embodiment are both made of porous ceramics, The end surface 62 and the lower end surface of the flange-shaped portion 24 are not completely flat surfaces, but are uneven surfaces having a minute uneven shape. Therefore, a slight gap is formed between the upper end surface 62 and the flange-like portion 24, and the upper air layer 52 is slightly communicated with the external space by the gap.

  The electromagnetic cooker device 10 having the above-described structure is used, for example, when food as a cooking object is cooked with an electromagnetic cooker. That is, after food to be cooked is stored in a container which is a space on the inner peripheral side of the container body 12, the inner lid 36 and the outer lid 38 are assembled to the container body 12, and the opening 23 of the container body 12 is covered with the lid. By covering with the member 14, the food is stored in the main body 16. Next, the appliance body 10 is formed by inserting the appliance body 16 into the heat insulating cover 18 and assembling it in a semi-accommodating state. And the foodstuffs can be heat-cooked by mounting the apparatus 10 for electromagnetic cookers which accommodated the food on the top plate of a known electromagnetic cooker, and operating an electromagnetic cooker.

  Below, the method of cooking rice with the electromagnetic cooker 70 using the electromagnetic cooker apparatus 10 made into the structure according to this embodiment is illustrated. In addition, the electromagnetic cooker equipment 10 according to the present embodiment is not used only for cooking rice, but by containing various foods in a container in place of white rice and water described later, It is suitably used for warming and the like.

  Specifically, for example, first, the container body 12, the inner and outer lids 36 and 38, and the heat retaining cover 18 are all immersed in water. In addition, although it may change with various conditions, it is desirable to immerse these container main bodies 12, inner and outer lids 36 and 38, and the heat insulation cover 18 for 1 minute or more in water. As a result, the container main body 12, the inner and outer lids 36 and 38, and the heat insulating cover 18 that are formed of porous ceramics and have water absorption properties all absorb water and retain water therein. Here, it is more preferable to preheat the heat retaining cover 18 containing water with a microwave oven or the like. Thereby, since the water contained in the heat insulation cover 18 is heated, the heat insulation cover 18 can be made into a high temperature state beforehand, and the heating effect mentioned later can be exhibited more effectively.

  Next, after putting appropriate amounts of white rice and water into the container main body 12 respectively, the opening 23 of the container main body 12 is covered and closed by attaching the inner lid 36 and the outer lid 38 in order, and the main body 16 is formed. . Then, the instrument body 16 is assembled to the heat insulation cover 18 by inserting the instrument body 16 into the insertion port 56 of the heat insulation cover 18. Thereby, the electromagnetic cooker apparatus 10 which accommodated white rice and water in the container is formed. And as shown in FIG. 11, the electromagnetic cooker apparatus 10 which accommodated white rice and water in the container is mounted on the top plate 72 of the well-known electromagnetic cooker 70, and the electromagnetic cooker 70 is operated. As a result, eddy current is generated in the bottom member 30 of the container body 12 due to the influence of magnetic lines generated from the coil 74 disposed in the electromagnetic cooker 70, and Joule heat is generated in the bottom member 30. As described above, in the container body 12 having the structure according to the present embodiment, since the bottom 30 is formed of carbon having conductivity, it is used on the electromagnetic cooker 70 while being substantially entirely made of earthenware. It is possible to do. In addition, since the bottom surface 32 of the container body 12 is slightly separated from the top plate 72 by the leg portion 34, the bottom portion 30 becomes too hot before the ceramic peripheral wall portion 20 is sufficiently heated, and the electromagnetic cooker. The possibility that 70 sensors react sensitively and automatically stop heating is advantageously avoided, and sufficient heating can be performed.

  Here, as for the electromagnetic cooker apparatus 10 made into the structure according to this embodiment, the outer side air layer 66 is formed in the outer side of the container main body 12. FIG. As a result, the air in the outer air layer 66 is heated by the heat of the bottom member 30 that is at a high temperature and the heat of the top plate 72 that is in a high temperature state due to the heat of the bottom member 30 being transmitted. In particular, in the present embodiment, the lower end surface 63 of the heat insulating cover 18 is brought into contact with the top plate 72 over the entire circumference with almost no gap while being placed on the top plate 72. Thereby, the heat of the bottom member 30 and the heat of the top plate 72 can be effectively captured. Then, as a result of the outer air layer 66 being warmed to the upper part by promoting heat transfer by convection, etc., it is possible to heat substantially the entire upper part of the peripheral wall portion 20 of the container body 12 from the outer side by the heat of the outer air layer 66. It becomes. Thus, in this embodiment, the problem peculiar to the electromagnetic cooker that only the bottom 30 is easily heated can be advantageously reduced, and the container body 12 can be warmed as a whole. . In particular, in the present embodiment, since the peripheral wall portion 20 of the container body 12 is made of earthenware having low thermal conductivity, the temperature difference between the bottom portion 30 and the peripheral wall portion 20 is more likely to occur, but the outer air layer 66 Thus, the peripheral wall portion 20 can be heated, and this temperature difference can be advantageously reduced or eliminated. And by heating the container main body 12 as a whole, unevenness in heating can be reduced or eliminated, and a finished (cooked) group can be suppressed.

  Furthermore, in this embodiment, the upper air layer 52 is formed in the upper part of the container main body 12, and the heat of the heated container main body 12 rises, and the air in the upper air layer 52 is heated. As a result, the heat of the upper air layer 52 that is set to a high temperature also acts to warm the inside of the container body 12 from the upper side.

  Here, the container main body 12, the heat insulating cover 18, and the inner and outer lids 36, 38 in this embodiment are all formed of porous ceramics having water absorption, and are preliminarily absorbed by being immersed in water before heating. And has retained water inside. Therefore, the water (reserved water) contained in the container main body 12, the heat insulating cover 18, and the inner and outer lids 36 and 38 is heated by the electromagnetic cooker 70. Thereby, the outer air layer 66 and the upper air layer 52 can be made higher temperature, and the more excellent heating effect can be acquired. Further, when the reserved water is heated and vaporized, the vapor flows into the outer air layer 66 and the upper air layer 52. Therefore, under the heat generation state of the electromagnetic cooking utensil 10, an air flow due to the inflow of steam is generated in the outer air layer 66 and the upper air layer 52. The heat of the air (water vapor) in the outer air layer 66 and the upper air layer 52 is advantageously transferred to the container main body 12 and the inner lid 36 by convection, so that the container main body 12 and the inner lid 36 are outside. Is heated evenly overall. Thereby, the local heating of food can be avoided more advantageously, and the whole food can be heated without spots. In particular, in the present embodiment, the outer air layer 66 is formed with a substantially constant width throughout, and heat transfer by convection acts on the container body 12 without any bias.

  Further, since the outer air layer 66 and the upper air layer 52 also act as a heat insulating layer, it is possible to advantageously prevent the heat in the container body 12 from being released to the outside of the electromagnetic cooker 10, A more excellent heating effect can be obtained.

  In addition, in this embodiment, the opening 23 of the container main body 12 is covered with the inner and outer lids 36 and 38 being overlapped. Thereby, the cover state of the opening 23 can be stably maintained by the weight of the inner and outer lids 36 and 38, and the inside of the container body 12 can be maintained in a high pressure state. As a result, it is possible to heat food more quickly. Further, since the circumferential positions of the inner vent hole 44 formed in the inner lid 36 and the outer vent hole 48 formed in the outer lid 38 are separated from each other, the inner and outer vent holes 44, 48 from the inside of the container body 12. The pressure in the container that escapes to the outside can be adjusted, and the pressure in the container body 12 can be maintained at an appropriate pressure while preventing the pressure in the container body 12 from becoming excessive.

  In addition, since the outer air layer 66 and the upper air layer 52 also function as heat insulating layers, the container body 12 can be kept longer in a high temperature state even after the operation of the electromagnetic cooker 70 is stopped, for example. As a result, it is possible to more effectively perform cooking and steaming with residual heat, and especially rice cooking that has been considered difficult with an electromagnetic cooker because final steaming with residual heat is important. It can be carried out advantageously without impairing the flavor. In addition, according to the electromagnetic cooker device 10 in the present embodiment, the container body 12 is formed of earthenware, so that it is possible to obtain a cooking result excellent in texture and flavor due to the far-infrared effect.

  Furthermore, in this embodiment, the container main body 12 and the inner lid 36 have water permeability, and movement of moisture is allowed on the inner peripheral side and the outer peripheral side of the container main body 12 and the inner lid 36. Thereby, the water | moisture content in a container is adjusted automatically after cooking, and the dew condensation, drying, etc. in a container are suppressed. As a result, it is possible to avoid problems such as food sticking with water droplets or being dried by being absorbed by the container body 12 or the inner lid 36. Therefore, after cooking, when the food is put in the electromagnetic cooking utensil 10 and stored for a relatively long period of time, the humidity control effect by the water permeability of the container body 12 and the inner lid 36, and the air permeability By exchanging gas with the outside by means of, it is possible to suppress the deterioration of food quality. Moreover, an outer peripheral air layer 66 and an upper air layer 52 are provided on the outer peripheral side of the container main body 12 and the inner lid 36 so as to surround the container main body 12 and the inner lid 36. Thereby, drying of the container body 12 and the inner peripheral side (inside the container) of the inner lid 36 is advantageously prevented, and deterioration due to drying of food during storage or the like is reduced or eliminated. In particular, since the outer peripheral air layer 66 and the upper air layer 52 are layers of air rich in moisture that are filled with water vapor during cooking, the container body 12 and the inner lid 36 are maintained in a more advantageous wet state. Thus, the drying of food is more effectively prevented.

  Next, FIG. 12 thru | or FIG. 16 shows the electromagnetic cooker apparatus 90 as an electromagnetic cooker apparatus which is 2nd embodiment of this invention. In addition, in the following description, about the member and site | part substantially the same as the electromagnetic cooker apparatus 10 as said 1st embodiment, it is the same as the electromagnetic cooker apparatus 10 as said 1st embodiment in a figure. The detailed description is omitted by attaching the reference numeral.

  An electromagnetic cooking utensil 90 in the present embodiment is configured by an assembly body 96 constituted by a container body 92 and a lid member 94 being inserted and assembled in a heat retaining cover 98 as a heat retaining wall member in a semi-accommodating state. ing. Here, a flange-like portion 24 is formed on the upper end edge of the container main body 92 so as to extend radially outward over the entire circumference, and the peripheral wall portion of the container main body 92 is a flange-like portion at the upper end in the axial direction. The diameter is expanded toward 24. Further, a pair of grips 100 facing in the radial direction are fixed to the outer peripheral surface of the container main body 92. In addition, the container main body 92 in this embodiment has the bottom part and the surrounding wall part integrally molded with stainless steel. In addition, the handle 100 is configured by hollow molded ceramics so that the heat of the container main body 92 is difficult to transfer.

  Further, the lid member 94 is superposed on the container main body 92 in a mounted state, whereby the opening of the container main body 92 is sealed with the lid member 94. Here, the lid member 94 is made of pottery similar to that of the first embodiment. Further, a wooden knob 102 is fixed to the central portion of the upper surface of the lid member 94 so that the heat of the lid member 94 is difficult to transfer. Unlike the first embodiment, the lid member in the present embodiment is configured by a single lid member 94.

  An instrument main body 96 constituted by the container main body 92 and the lid member 94 is inserted into the heat insulating cover 98. A heat insulating cover 98 is shown in FIGS. The heat insulating cover 98 has substantially the same structure as the heat insulating cover 18 in the first embodiment described above, and is formed of a porous ceramic having water absorption. In particular, the heat retaining cover 98 in the present embodiment is formed with a pair of relief portions 104 as concave openings facing each other in the radial direction. The relief portion 104 is formed by cutting out the upper end edge of the peripheral wall portion 54 of the heat insulating cover 98, and extends in the circumferential direction of the peripheral wall portion 54 over a predetermined dimension and opens upward in the axial direction. It is considered a lack. The circumferential dimension of the relief portion 104 is slightly larger than the circumferential dimension of the handle 100 of the container main body 92.

  In addition, a locking portion 106 that slightly protrudes radially inward over the entire circumference in the circumferential direction is formed on the inner peripheral edge slightly below the upper end edge of the heat retaining cover 98. Then, as shown in FIG. 16, the container body 92 is inserted into the heat insulating cover 98, and the peripheral wall portion whose diameter is expanded below the flange-shaped portion 24 is locked by the locking portion 106. 92 and the heat insulating cover 98 are assembled together.

  In this embodiment, when the container main body 92 is assembled to the heat insulation cover 98, the handle 100 of the container main body 92 and the relief portion 104 of the heat insulation cover 98 are assembled in a state where they are positioned at substantially the same circumferential position. It is done. As a result, the connecting portion 108 of the handle 100 to the container main body 92 is inserted into the escape portion 104. As described above, in the electromagnetic cooker apparatus 90 according to the present embodiment, the handle 100 that is an obstacle to the insertion of the container main body 92 into the heat insulating cover 98 can be released by the escape portion 104. Even if it is a main body, the favorable assembly | attachment state with respect to a heat insulation wall member is realizable. Here, an air layer 66 is formed between the container main body 92 and the heat insulating cover 98, and the same effects as those of the first embodiment can be obtained. In particular, in the present embodiment, since the container main body 92 is formed of stainless steel over the entire bottom portion and the peripheral wall portion, heat is dissipated in the portion extending from the center of the peripheral wall portion away from the heated bottom portion. It becomes a problem. In this respect, since the heat release rate can be delayed by the heat insulation effect / heat storage effect of the air layer 66 or the heat insulating cover 98 itself, it is possible to advantageously solve the conventional problems such as heat spots in the electromagnetic cooker. Become.

  The specific shape and number of the concave openings are appropriately set in consideration of the handle shape of the container body, and are not limited to the structure described in the above embodiment. Needless to say. For example, when the container body has only one handle, it is only necessary to form one concave opening.

  Although several embodiments of the present invention have been described above, these are merely examples, and the present invention is not construed as being limited to specific descriptions in such embodiments.

  For example, as shown in FIG. 21, in the heat retaining cover 18 in the first embodiment described above, an annular shape having a predetermined thickness dimension over the entire circumference of the upper end surface 62 that locks the container body 12. A seal rubber 110 may be provided. In this way, in the assembled state of the container main body 12, the seal rubber 110 is interposed between the upper end surface 62 and the lower end surface of the flange-like portion 24 of the container main body 12, so that the container main body 12 is in contact with the seal rubber 110. Thus, it is locked in a close state over the entire circumference. As a result, the seal rubber 110 can be used as a sealing means, and the space between the inner peripheral surface of the peripheral wall 54 of the heat retaining cover 18 and the outer peripheral surface of the peripheral wall 20 of the container body 12 can be sealed in a substantially sealed state. The airtightness of the layer 66 can be further increased, and the heat in the outer peripheral air layer 66 can be more effectively prevented from being released to the external space.

  In the above aspect, the seal rubber 110 is provided on the upper end surface 62, so that the gap between the inner peripheral surface of the peripheral wall 54 of the heat retaining cover 18 and the outer peripheral surface of the peripheral wall 20 of the container main body 12 is a flange shape of the container main body 12. For example, as shown in FIG. 22, the inner peripheral surface of the peripheral wall 54 of the heat retaining cover 18 is radially inward over the entire circumference. A ring-shaped seal rubber 112 that protrudes to the surface may be provided. In this way, the seal rubber 112 is interposed between the outer peripheral surface of the peripheral wall 20 and the inner peripheral surface of the peripheral wall 54 in the assembled state of the container body 12 and the heat insulating cover 18, so that the outer peripheral surface and the peripheral wall of the peripheral wall 20. It is possible to directly seal between the inner peripheral surfaces of 54. In such a case, the upper surface of the outer peripheral air layer 66 is constituted by the seal rubber 112.

  Furthermore, in such a case, a mode in which a vent hole that communicates between the outer peripheral air layer 66 and the external space is formed is more preferably employed. For example, in the heat insulating cover 18 shown in FIG. 22, a vent hole 114 penetrating in the thickness direction is formed in the peripheral wall portion 54 constituting the outer air layer 66, that is, the peripheral wall portion 54 below the seal rubber 112. Thus, the outer air layer 66 is communicated with the external space through the vent hole 114. In this way, even when the airtightness of the outer peripheral air layer 66 is enhanced by providing the sealing rubber 112 as a sealing means, the pressure in the outer peripheral air layer 66 can be released through the vent holes 114. Thus, it is possible to reduce or eliminate the possibility that the inside of the outer air layer 66 will have an unnecessarily high pressure. However, such a vent is not necessarily used in combination with the sealing means, and it is possible to provide only the vent without providing the sealing means. Therefore, for example, a vent hole may be formed by penetrating the peripheral wall portion 54 of the cover member 18 in the first embodiment in the thickness direction.

  Furthermore, for example, in the first embodiment, as shown in FIGS. 23 and 24, the heat insulating cover 18 is configured by combining the lower cover 116 as a lower lid member that covers the bottom surface exposed port 58 of the peripheral wall portion 54. You may do it. The lower cover 116 is shown in FIGS. The lower cover 116 has a substantially cup shape that opens upward, and a peripheral wall 120 that protrudes upward is integrally formed over the entire periphery of the outer peripheral edge of the bottom 118 having a substantially disk shape. . Here, a stepped portion 122 is formed on the inner peripheral surface of the peripheral wall 120, the lower side of the stepped portion 122 is a small diameter portion 124, and the upper side of the stepped portion 122 has a larger inner diameter than the small diameter portion 124. The large-diameter portion 126 is used.

Then, as shown in FIGS. 23 and 24, the lower end surface 63 of the peripheral wall portion 54 is overlaid in a mounted state from above the lower cover 116. Here, on the outer peripheral surface of the lower end portion of the peripheral wall portion 54, a notch-shaped fitting portion 128 is formed over the entire periphery. As a result, the fitting portion 128 of the peripheral wall portion 54 and the large-diameter portion 126 of the peripheral wall 120 of the lower cover 116 are fitted together, so that the relative displacement of the peripheral wall portion 54 and the lower cover 116 in the axial direction is limited. Yes. In this way, the bottom surface exposure port 58 of the peripheral wall portion 54 is covered with the lower cover 116, and the bottom surface 32 of the container body 12 is positioned away from the bottom plate 118 of the lower cover 116 by a predetermined distance. A lower air layer 130 is formed between the bottom surface 32 of the container body 12 and the lower cover 116. Here, the separation distance T _{5 in} the axial direction (vertical direction in FIG. 24) between the bottom surface 32 of the container body 12 and the bottom plate 118 of the lower cover 116 is preferably 5 mm ≦ T ₅ ≦ 30 mm, more preferably 10 mm ≦ T ₅ ≦ 20 mm, and in this embodiment, T ₅ = 10 mm. In such an assembled state, the container body 12 has an outer peripheral surface including the bottom surface 32 by forming an outer peripheral air layer 66 in the outer portion thereof and forming a lower air layer 130 in the lower portion thereof. Is entirely surrounded by the outer peripheral air layer 66 and the lower air layer 130.

  In this way, for example, after lowering the container body 12 and the peripheral wall portion 54 from the electromagnetic cooker, the peripheral wall portion 54 is placed on the lower cover 116, so that the lower air is placed below the bottom surface 32 of the container main body 12. Layer 130 is formed. This avoids the heat of the bottom surface 32 being absorbed by the other member due to the bottom surface 32 of the container body 12 coming into contact with the other member, and the lower air layer 130 as a heat insulating / heat storage layer. By using it, it is possible to more advantageously maintain the high temperature state of the container body 12, particularly the bottom member 30 constituting the bottom surface 32, and more excellent effects can be exhibited in cooking such as steaming. .

  Here, the material of the lower cover 116 is not particularly limited, and any material can be appropriately employed. However, from the viewpoint of heat retention and the like, for example, pottery similar to the above-described peripheral wall portion 54, or A metal material having a multilayer structure in which a heat insulating layer is formed inside can be suitably employed.

  In order to further improve the airtightness of the lower air layer 130, for example, as shown in FIG. 27, a seal rubber 132 as a sealing member can be provided on the upper end surface of the peripheral wall 120 of the lower cover 116. In this way, the space between the overlapping surfaces of the peripheral wall portion 54 and the peripheral wall 120 can be sealed, and the airtightness of the lower air layer 130 can be further improved. The high temperature state can be maintained for a longer time. In FIG. 27, the sealing rubber 132 is fixed to the upper end surface and the inner peripheral surface of the large-diameter portion 126 and the upper end surface of the stepped portion 122 in the peripheral wall 120, thereby overlapping the peripheral wall portion 54 and the peripheral wall 120. The seal rubber 132 is interposed over the entire space, but for example, the seal rubber 132 may be disposed only on the upper end surface of the large-diameter portion 126 of the peripheral wall 120 or the upper end surface of the stepped portion 122. It is of course possible to provide the seal rubber 132 on the lower end surface of the peripheral wall portion 54.

  For example, in the first embodiment, the container main body 12 is locked to the heat insulating cover 18 in the assembled state of the container main body 12 to the heat insulating cover 18, but the container main body is not necessarily kept warm in the assembled state. It is not necessary to be locked to the wall member. That is, in the first embodiment described above (see FIG. 5), the flange-like portion 24 of the container main body 12 is locked by the upper end surface 62 of the heat retaining cover 18 in the assembled state. In a state where the container body 12 and the heat retaining cover 18 are placed on the same plane, for example, by increasing the axial dimension of 12, the bottom surface of the flange-shaped portion 24 and the upper end surface 62 are in a non-contact state with a gap therebetween. Alternatively, the container body 12 may be simply inserted into the heat retaining cover 18.

  Furthermore, the material of the heat insulating wall member is not limited to the pottery as described above. For example, it is possible to form the heat insulating wall member by appropriately using a metal material such as stainless steel, iron, or aluminum, or various conventionally known synthetic resin materials. In addition, the heat insulating wall member can have a multi-layer structure, and a further heat insulating effect can be improved by providing a heat insulating layer inside.

  Furthermore, for example, in the first embodiment, as shown in FIG. 28, a heat conduction promoting wall 134 is disposed between the heat insulation cover 18 on which the outside air layer 66 is formed and the opposing surface of the container body 12. Also good. The heat conduction promoting wall 134 is formed of a metal material such as copper, stainless steel, or aluminum, and has a curved cylindrical shape following the curvature of the container body 12 and the heat retaining cover 18 as a whole. And a predetermined gap from the heat insulating cover 18.

  The heat conduction promoting wall 134 is configured such that the lower end portion thereof is placed on a top plate of an electromagnetic cooker (not shown), and the upper end portion is spaced apart from the flange portion of the container body 12 by a predetermined amount. Has been. Thereby, each air layer formed between the opposing surfaces of the heat conduction promoting wall 134, the heat insulating cover 18, and the container body 12 is brought into a communication state via the gap. Thereby, the electrothermal property by the convection of air is prevented from being inhibited by the heat conduction promoting wall 134. In addition, the lower end part of the heat conduction promoting wall 134 extends to the vicinity of the bottom member 30, and induction heating of the electromagnetic cooker is advantageously generated in the heat conduction promoting wall 134. The heat conduction promoting wall 134 preferably has a wall thickness of 0.8 mm to 1.2 mm.

  By disposing such a heat conduction promoting wall 134 in the outside air layer 66, the heat in the vicinity of the bottom member and the top plate can be more advantageously used for heating in the outside air layer 66, and the container body It is possible to promote heating of the upper portion of 12 and thus the entire container body 12. Furthermore, when the heat conduction promoting wall 134 is made of an IH-compatible material such as copper or stainless steel, it is heated by induction heating of an electromagnetic cooker, so that the upper part of the container body 12 and the entire container body 12 are heated. Can be achieved dramatically. In order to improve the heat transfer property by the convection of the air in the outside air layer 66, a communication hole is provided in a part of the heat conduction promoting wall 134, or a part or all of the heat conduction promoting wall 134 is formed in a mesh structure. It is also preferable that

  In addition, in FIG. 28, although the aspect which provides the heat conduction promotion wall 134 as a separate cylindrical body was demonstrated, this heat conduction promotion wall is provided in the inner peripheral surface of the heat retention cover 18, and / or the outer peripheral surface of the container main body 12. FIG. It can also be formed by spraying or the like.

  In addition, although not enumerated one by one, the present invention can be carried out in a mode to which various changes, modifications, improvements and the like are added based on the knowledge of those skilled in the art. It goes without saying that all are included in the scope of the present invention without departing from the spirit of the present invention.

The front view of the appliance for electromagnetic cookers as 1st embodiment of this invention. The side view of the appliance for electromagnetic cookers. The top view of the same electromagnetic cooker equipment. The bottom view of the appliance for electromagnetic cookers. The longitudinal cross-sectional view of the same electromagnetic cooker equipment. The perspective view which shows the decomposition | disassembly state of the same electromagnetic cooker equipment. The front view of the heat insulation wall member which comprises the same electromagnetic cooker equipment. The side view of the heat insulation wall member which comprises the same device for electromagnetic cooking appliances. The top view of the heat insulation wall member which comprises the same electromagnetic cooker equipment. The bottom view of the heat insulation wall member which comprises the same device for electromagnetic cooking appliances. The longitudinal cross-section explanatory drawing which shows the use condition of the same electromagnetic cooker equipment. The front view of the appliance for electromagnetic cookers as 2nd embodiment of this invention. The side view of the appliance for electromagnetic cookers. The top view of the same electromagnetic cooker equipment. The bottom view of the appliance for electromagnetic cookers. The perspective view which shows the decomposition | disassembly state of the same electromagnetic cooker equipment. The front view of the heat insulation wall member which comprises the same electromagnetic cooker equipment. The side view of the heat insulation wall member which comprises the same device for electromagnetic cooking appliances. The top view of the heat insulation wall member which comprises the same electromagnetic cooker equipment. The bottom view of the heat insulation wall member which comprises the same device for electromagnetic cooking appliances. The principal part expansion explanatory drawing for demonstrating the different aspect of this invention. The principal part expansion explanatory drawing for demonstrating the further different aspect of this invention. The front view for demonstrating the further different aspect of this invention. The longitudinal cross-sectional view for demonstrating the aspect. The longitudinal cross-sectional view of the lower side cover member used for the aspect. The top view of the same lower side cover member. The principal part expansion explanatory drawing for demonstrating the further different aspect of the lower side cover member shown in FIG. The principal part expanded sectional view for demonstrating the further different aspect of this invention.

Explanation of symbols

10: Electromagnetic cooker, 12: Container body, 14: Lid member, 16: Body body, 18: Thermal insulation cover, 20: Perimeter wall, 24: Flange-shaped part, 36: Inner lid, 38: Outer lid, 52: Upper air layer, 58: bottom exposed port, 62: upper end surface, 66: outer air layer

Claims (14)

  While having the cylindrical surrounding wall which covers the outer side of the surrounding wall part of an electromagnetic cooker utensil apart over the whole circumference, the upper opening is used as an insertion port for inserting the electromagnetic cooker utensil The lower opening is a bottom-exposed opening having an opening size larger than the bottom of the electromagnetic cooker utensil, and in a combined state in which the electromagnetic cooker utensil is inserted, the bottom-exposed opening The bottom surface of the induction cooker utensil is exposed, the end surface on the bottom exposure port side is positioned on the same plane as the lower end surface of the bottom surface, and an air layer is formed between the peripheral wall portion of the induction cooker utensil. A heat retaining wall member for an electromagnetic cooker, characterized in that it is formed.   The heat insulation wall member of the appliance for electromagnetic cookers of Claim 1 currently formed with the earthenware.   The heat retaining wall member for an electromagnetic cooking appliance according to claim 1 or 2, wherein sealing means for sealing between the peripheral wall portion of the electromagnetic cooking appliance is provided.   The heat retaining wall member for an electromagnetic cooking appliance according to any one of claims 1 to 3, wherein a locking portion for locking the electromagnetic cooking appliance is provided at the insertion port.   The heat insulation wall member of the appliance for electromagnetic cookers as described in any one of Claims 1 thru | or 4 with which the said cylindrical surrounding wall has water permeability.   The heat insulation wall member of the appliance for electromagnetic cookers as described in any one of Claims 1 thru | or 5 by which the handle is provided in the said cylindrical surrounding wall.   7. The concave opening that is opened upward in a concave shape in the upper opening so that the handle of the electromagnetic cooking utensil can be inserted is formed in any one of claims 1 to 6. The heat insulation wall member of the appliance for electromagnetic cookers of description.   The lower lid member which forms a lower air layer between the bottom of the electromagnetic cooker utensil by covering the lower opening, The lower lid member according to any one of claims 1 to 7 provided. Heat insulation wall member for electromagnetic cooker equipment. In an electromagnetic cooking utensil provided with a bottomed container body that contains food, and a lid member that is assembled to the container body and covers the opening of the container body,
A heat insulation wall member for an electromagnetic cooking appliance as claimed in any one of claims 1 to 8, comprising the heat insulation wall member and the container main body combined to form the container from the bottom exposed port of the heat insulation wall member. The bottom surface of the main body is exposed, and the end surface of the heat insulating wall member on the bottom surface exposure port side is positioned on the same plane as the lower end surface of the bottom surface, and between the peripheral wall portion of the container main body and the heat insulating wall member. A device for an electromagnetic cooker, wherein a first air layer is formed.   The lid member includes an inner lid and an outer lid, and each outer peripheral edge of the inner lid and the outer lid is placed on the opening of the container body, and the inner lid and the outer lid are mutually connected. A second air layer separated from the first air layer is formed between the overlapping surfaces of the inner lid and the outer lid by being combined with the container main body in a state of being overlapped and spaced apart. Item 10. An appliance for an electromagnetic cooker according to Item 9.   While the container main body is formed of earthenware and a conductive material is disposed at the bottom of the container main body, the bottom surface of the container main body is configured by the conductive material, while the lid member is The appliance for an electromagnetic cooker according to claim 9 or 10, which is made of earthenware.   12. The lower end surface of the container main body is constituted by a leg portion protruding from the bottom surface of the container main body, and the bottom surface of the container main body is separated from the flat surface in a mounted state on the flat surface. The appliance for an electromagnetic cooker according to any one of the above.   Heat conduction to at least one of the first air layer formed between the peripheral wall portion of the container body and the heat insulating wall member, the outer peripheral surface of the peripheral wall portion, and the inner peripheral surface of the heat insulating wall member. The device for an electromagnetic cooker according to any one of claims 9 to 12, further comprising an accelerating wall.   The heat conduction promoting wall is formed as a cylindrical body made of metal, and is disposed with a gap between a peripheral wall portion of the container body and the heat retaining wall member. Electric cooker equipment.

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