JP2013137919A - Upper heater unit for ih cooking heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an upper heater unit for an IH cooking heater, which can bake food in a non-dedicated frying pan and the like from upside and downside at the same time in a smokeless and odorless fashion by utilizing an IH cooking heater.SOLUTION: An upper heater unit for an IH cooking heater comprises: a cooking container stand 50 incorporating a power-receiving coil L2 generating an electromotive force on the basis of mutual induction between the power-receiving coil L2 and an induction heating coil L1 of the IH cooking heater; and a container lid 60 incorporating a radiant heater 62 on a rear face side which is driven by an electric power produced by the power-receiving coil L2. A cooking material F in a cooking container 10 placed on the cooking container stand 50 is baked from upside and downside at the same time on the basis of heat generated by the cooking container 10 itself caused by the IH cooking heater and radiation heat from the radiant heater 62 in the container lid 60.

Description

  In the present invention, when cooking a grilled fish such as grilled fish with an IH cooking heater using a handheld cooking container such as a frying pan, the cooking material can be baked from both the upper and lower sides by using the cooking container with a lid. The present invention relates to an upper heater unit for an IH cooking heater that can be used.

  With the permeation of energy-saving ideas, IH cooking heaters with high heat utilization efficiency have become widespread as heat sources for cooking in kitchens.

  The IH cooking heater generates a high-frequency alternating magnetic flux by flowing a high-frequency current through an induction heating coil formed in an annular shape, and the generated high-frequency alternating magnetic flux acts on a metal material of a cooking container such as a pan or a frying pan disposed on the induction heating coil. The cooking container itself generates heat. At this time, heat is generated in the cooking container because high frequency alternating magnetic flux acts on the metal material, an induction current due to electromagnetic induction flows in the metal material, and Joule heat is generated depending on the electric resistance of the metal material. This is because it occurs.

  The IH cooking heater that can heat the cooking container itself according to the heat generation principle as described above has no room for heat transfer loss from the heat source to the cooking material, so that heat utilization efficiency is also good. Has characteristics. Moreover, it has high affinity for electrical control and can cope with automation of cooking by a preset program.

  What should be noted here is that many of the IH cooking systems are equipped with an oven grill for cooking pottery incorporating a radiant heater that differs in heat generation principle from induction heating. This is due to the fact that the IH cooking heater is not good at cooking grilled food, and the cooked food must be relied on a radiant heater.

  One reason why IH cooking heaters are not good at cooking pottery is that they cannot generate the far-infrared component in the high temperature region that is required for deliciously cooking pottery. This is because the IH cooking heater that generates heat in the cooking container itself may heat the cooking container to a high temperature that generates far-infrared components in a high temperature region due to problems with heat resistance and handling safety of the cooking container. It is not allowed. On the other hand, such a limiting factor does not exist in the radiant heater made of a dedicated heat-resistant member.

  Another reason why IH cooking heaters are not good at cooking pottery is that they cannot effectively treat oily smoke and odorous substances peculiar to pottery cooking, and once the smoke is discharged indoors, it is discharged outdoors by a range hood fan. I can only do it. For this reason, when cooking with a frying pan or the like using an IH cooking heater, the clean image of the IH cooking system is greatly reduced, and oily smoke contamination around the range hood becomes a problem.

  The IH cooking system is provided with an oven grill using a direct-heat-type radiant heater as a heat source in addition to the heat source of the original induction heating method for the reason described above. The need for two heat sources has the disadvantage of increasing the cost of the IH cooking system as well as limiting the design of the IH cooking system.

  Furthermore, the oven grill built into the IH cooking system has a problem that it is not easy to use compared to a single product oven grill.

  The inconvenience of the oven grill attached to the IH cooking system is caused by the following problems. There is a problem that putting cooking materials in and out of the oven grill and cleaning are inconvenient. This is because the top plate of the IH cooking system is set to an appropriate height, so the oven grill that has to be placed below it is low and forced to work in the middle.

In addition, there is a problem that anxiety is accompanied by putting cooking ingredients into and out of the oven grill. This is because the cooking tray structure of the oven grill is like a cupboard drawer, so when the cooking tray is fully pulled out, it is in an extreme cantilevered state and the cooking tray front panel side hangs down. is there. Although it cannot come off, there is a strong sense of anxiety when using oil catching water in the cooking tray.

Furthermore, there is a problem that the cooking material during cooking cannot be seen at all. A transparent window for visual confirmation is provided on the front panel of the cooking tray, but it can be said that there are many cases where steam and smoke are trapped in the oven grill during cooking and cannot be seen. The cooking time can also be set with a timer, but the timer is not a device to notify the proper baking for each cooking material, and it is rare to burn by additional energization when cooking is incomplete Not that.

The oven grill incorporated in the IH cooking system has various disadvantages as described above due to being incorporated in the IH cooking system. For this reason, using an oven grill allows cooking without generating unnecessary smoke and odors, but withholding the built-in oven grill and generating a large amount of smoke using a frying pan etc. This also leads to the unreasonableness of cooking pottery. However, there is no room for improvement on the disadvantages based on being incorporated into the IH cooking system.

  For the reasons described above, the manufacturer wants to abolish the oven grill of the IH cooking system. However, regardless of the frequency of use, considering the consumer's resistance to products that cannot be cooked, it will be abolished. You cannot take it off.

  The above problem is a problem that can be solved if an appropriate cooking utensil capable of cooking on the top plate using the IH cooking system is provided. As a proposal paying attention to this, there is an example of the following high-frequency induction heating cooking utensils (see Patent Document 1 below).

  However, in the above-mentioned proposal example, the problem of oil smoke and odor peculiar to grilled food cooking generated from cooking materials is not mentioned, and it is unclear how to deal with this problem. The taste characteristic of cooking pottery is burnt taste, and it is impossible to cook pottery without generating smoke or odor. If oil smoke etc. are confined in the cooking container and cooked, black cooking covered with oil smoke will be completed, and if the lid is removed, the heating part in the lid can not be used. Problems arise.

  Therefore, the inventors of the present application have already made a proposal that solves the problem of treatment of oil smoke and the like that the above proposal uses by using a post-combustion catalyst member (see Patent Document 2 below). This application is a further improvement of this proposal.

JP 2000-40536 A Japanese Patent Application No. 2010-262169

  In relation to the present application, the outline of the previous proposal by the inventors of the present application and the problems submitted after the previous proposal will be briefly described.

The previous proposal by the inventors of the present application is to provide a so-called upper-fire heater that heats the cooking material from the upper surface side on the back side of the container lid of the cooking container used for grilled food cooking, and a post-combustion catalyst member on the container lid. An attached exhaust port is provided so that the smoke generated from the cooking material is completely burned by the post-combustion catalyst member and discharged.

At this time, the post-combustion catalyst member is activated using the upper fire heater. That is, the upper fire heater is used for cooking and for activating the post-combustion catalyst member. Further, as a power source for the upper fire heater, a power receiving coil that exerts an electromotive force by high frequency alternating magnetic flux generated from an induction heating coil of the IH cooking heater is installed in either the cooking container or the container lid, and this is used as the power source.

  The above-mentioned proposal by the inventors of the present application was subsequently subjected to a continuous follow-up test. As a result, the following problems became apparent.

A basic problem is insufficient power in the receiving coil. The installation location of the power receiving coil has been a problem from the beginning, but in the previous proposal, a plan to install the power receiving coil on the cooking container or the container lid has been adopted. However, there is a limit to providing a power receiving coil with a sufficient number of turns while ensuring handling as a cooking utensil, regardless of which power receiving coil is provided.

  In addition to the problem of the number of turns, when the power receiving coil is attached to the container lid, the distance from the induction heating coil of the IH cooking heater becomes excessive, and it is necessary to adopt a design with a very special shape to solve this problem. was there. In addition, when the power receiving coil is attached to the cooking container, the user is restricted from using a free cooking container according to the cooking material, and further, heat countermeasures of the power receiving coil become a problem.

  As another basic problem, it was pointed out that it was difficult to balance the amount of baking on both the upper and lower sides of the cooking ingredients. Specifically, the back side of the cooking material that receives the heat generated by the cooking container tends to burn up early. This problem can be solved by increasing the heating power of the upper heater, but the lack of capacity of the power receiving coil hinders the adoption of this solution. However, due to the structure that the upper heater is installed in the container lid, if a high output upper heater that can counter the heat generation of the cooking container itself is used, there is a problem in handling and safety as a container lid. For this reason, it is impossible to rely on this solution alone.

The present invention assumes the above two basic problems, i.e., on the installation of the receiving coil, on the premise of cooking on the upper and lower sides of the IH cooking heater without odorless smoke without relying on an independent power source. By ensuring that sufficient output can be ensured by eliminating the restrictions of high temperature, it is possible to drive a high output top heater, and cooking is also accompanied by restrictions on the large output of the top fire heater. It is an object of the present invention to provide an additional measure that can freely set the amount of baking of the upper and lower surfaces of the material.

  In order to solve the above problems, the present invention employs the following configuration.

(Solution 1)
The upper heater unit for the IH cooking heater according to the present invention has a built-in power receiving coil that exerts an electromotive force by mutual induction action with the induction heating coil of the IH cooking heater, and the upper surface is formed so that the cooking container can be stably placed. And a non-metallic cooking container stand, and a container lid that incorporates a radiant heater that is driven by power generated in the power receiving coil on the back side, and covers the cooking container placed on the cooking container stand. It is possible to bake the cooking material stored in the cooking container placed on the cooking container stand from both the upper and lower sides by the heat generated by the cooking container itself by the induction heating coil and the radiant heat from the radiant heater in the container lid In addition, by adjusting the height of the cooking container stand, it is possible to balance the baking of the upper and lower surfaces

  The solving means 1 will be described. The upper fire heater unit includes a cooking container base and a container lid. The cooking vessel base is made of a non-metallic material and is not only affected by the electromagnetic influence of the induction heating coil of the IH cooking heater, but also does not have an electromagnetic influence. This cooking vessel base has a built-in power receiving coil that exerts an electromotive force by mutual induction between the induction heating coil of the IH cooking heater, and the upper surface of the cooking vessel base can stably place the cooking vessel. It is formed as follows.

  On the other hand, a radiant heater that is driven by the output of the power receiving coil built in the cooking vessel base is built in the back side of the container lid. Therefore, by placing a cooking container table on the IH cooking heater, placing an arbitrary cooking container on the cooking container table, and using the cooking container with a container lid, the cooking material in the cooking container is guided to the IH cooking heater. It can be baked from both the upper and lower surfaces by the heat generated by the cooking container itself by the heating coil and the radiant heat from the radiant heater of the container lid. At this time, by adjusting the height of the cooking container table, the amount of heat generated by the cooking container itself can be adjusted while keeping the heating power by the radiant heater constant, so that the baking on both the upper and lower sides of the cooking material should be optimized. Can do.

  It should be noted that the setting of the upper and lower side baking finishes can be carried out by the user of the upper heating heater unit of the present invention, but here it is premised on the optimization by the designer in advance. . Therefore, it is not necessary for the user of the present invention to adjust the height of the cooking container stand.

(Solution 2)
The upper heater unit for the IH cooking heater according to the present invention is based on the upper heater unit described in Solution 1 for burning smoke and odor substances generated from the heated cooking material on the container lid. An exhaust port provided with a post-combustion catalyst member is formed, and the post-combustion catalyst member is activated by heating with a cooking material together with a cooking material.

  The solving means 2 will be described. When an exhaust port is formed in the container lid, the smoke and odor substances generated from the cooking material are chased by the steam, pass through the exhaust port, and flow out to the outside. At this time, the atmosphere flowing out to the outside is attached to the exhaust port, heated by the radiant heater and activated, and then completely burned by the catalytic action of the combustion catalyst member.

(Solution 3)
The upper heater unit for the IH cooking heater of the present invention is based on the upper heater unit described in Solution 1 or Solution 2, and the outer shape of the power receiving coil in plan view is the plane of the induction heating coil of the IH cooking heater. It is formed in the external shape corresponding to the external shape in view.

  The solving means 3 will be described. The above solution means the outer shape of the power receiving coil that can improve the efficiency of the power receiving coil. When a current is passed through the conducting wire, a magnetic field having a fixed positional relationship with the conducting wire is generated. Further, when a magnetic field is applied to the conducting wire, a current flows through the conducting wire. The efficiency of such reversible electromagnetic conversion action can be improved by setting the outer shape of the power receiving coil to the outer shape corresponding to the outer shape of the induction heating coil of the IH cooking heater and bringing the power receiving coil and the induction heating coil as close as possible. It is.

(Solution 4)
The top heater unit for the IH cooking heater of the present invention is based on the top heater unit according to any one of the above solution 1 to solution 3 and is mounted on the cooking vessel table on the upper surface side of the power receiving coil. The heat insulation member for interrupting | blocking the heat from the placed cooking container is arrange | positioned, It is characterized by the above-mentioned.

  The solving means 4 will be described. The above solution means a countermeasure against heat of the receiving coil against the radiant heat from the cooking container that is placed on the cooking container table and generates heat by the induction heating coil of the IH cooking heater. The cooking container on the cooking container table is naturally positioned on the power receiving coil built in the cooking container table. Therefore, an effective heat insulating effect can be obtained by arranging the heat insulating member on the upper surface side of the power receiving coil.

(Solution 5)
The top heater unit for the IH cooking heater of the present invention is based on the top heater unit according to any one of the above solution 1 to solution 4, and has a through hole in the vertical direction at the center of the cooking vessel base. A heat transfer member made of a nonmagnetic metal having a high thermal conductivity extending from the bottom surface of the cooking vessel placed on the cooking vessel table to the top plate of the IH cooking heater is loaded into the through hole, and the heating member The temperature detection sensor provided in the IH cooking heater is made to function via the.

  The solving means 5 will be described. The above solution means means for utilizing the control function of the IH cooking heater regardless of the presence of the cooking container table when cooking the grilled food on the IH cooking heater via the cooking container table.

  That is, the thermal power control in the IH cooking heater is performed by a sensor group on the premise that the cooking container is placed on the top plate. However, in the upper heater unit of the present invention, the cooking container base is interposed between the cooking container and the top plate in the use state. Therefore, by providing a heat transfer member at the center of the cooking vessel table, using this heat transfer member to transfer the heat of the cooking vessel to the top plate position, and by causing the sensor group provided in the IH cooking heater to function, Control results such as energization stop due to abnormal heating can be used.

The upper heater unit for the IH cooking heater according to the present invention includes a cooking container base with a built-in power receiving coil and a container lid with a built-in radial heater. An arbitrary cooking container such as a frying pan is placed on the cooking container base. The cooking material can be baked from both the upper and lower sides by cooking the pottery with the cooking vessel covered. At this time, by incorporating the power receiving coil in a cooking container stand that does not have any restrictions as a cooking container, it is possible to eliminate restrictions on the outer shape and the number of turns of the power receiving coil, thereby dramatically increasing the electromagnetic conversion efficiency by the power receiving coil. Along with this, it is possible to adopt a radiant heater with an output that is easy to balance with the heating of the cooking container itself by the induction heating coil of the IH cooking heater, eliminating the problem of uneven baking between the upper and lower surfaces of the cooking material can do. Furthermore, by adjusting the height of the cooking vessel table and changing the interval between the induction heating coil of the IH cooking heater and the cooking vessel, it is possible to balance the baking of the upper and lower surfaces.

Also, an exhaust port provided with a post-combustion catalyst member on the container lid is formed, and the post-combustion catalyst member is used while being activated by a built-in radiant heater. Thus, the pottery can be cooked while completely burning, so that the effects of the present invention can be enjoyed without smoke and odor.

It is a perspective view which shows embodiment of the top heater unit of this invention. It is sectional drawing which shows the use condition of the top heater unit of this invention.

  Embodiments of the upper heater unit for the IH cooking heater of the present invention will be described below with reference to the drawings.

  The upper fire heater unit includes a cooking container base 50 that shares a function as a power source and a container lid 60 that shares a function as a heat source (FIG. 1).

The cooking vessel base 50 includes a base base 51 integrally formed from a silicone resin material having excellent heat resistance, and employs a configuration in which all necessary mechanical members are assembled to the base base 51. The schematic shape of the base 51 is such that a pentagonal peripheral frame 5A is integrated with a hollow cylindrical member. The base 51 can be stably placed on the top plate TP of the IH cooking heater without fear of sliding. A vertical through-hole 5 </ b> H is formed at the center of the base 51. Five supporting legs 5B, which function as five virtue as a whole, are radially arranged on the peripheral frame 5A, and the cooking container 10 such as a frying pan can be stably placed on the base table 51 (FIGS. 1 and 1). 2).

  The main members incorporated in the cooking vessel base 50 are the power receiving coil L2 and the heat transfer member 52. The power receiving coil L2 is tightly wound in an annular shape and is set in such a manner that the power receiving coil L2 is dropped into the hollowed out portion of the base stand 51. The upper surface side of the set power receiving coil L2 is protected by a heat insulating member 5D, and the space from the power receiving coil L2 to the 5 leg support 5B is a heat insulating layer 5S formed by the combined use of the heat insulating member 5D and the heat insulating space. Thereby, the radiant heat from the cooking container 10 mounted on the cooking container stand 50 can be cut off.

  The size of the base 51 is set to a size that allows the power receiving coil L2 having a planar shape corresponding to the heating induction coil L1 of the IH cooking heater to be accommodated in the planar shape in plan view. The height of the base 51 is such that the amount of heat generated by the IH cooking heater of the cooking container 10 placed thereon and the amount of heat generated by the radiant heater 62 used in the upper heater unit are balanced. Is set.

  The heat transfer member 52 is made of a nonmagnetic metal having high thermal conductivity, such as an aluminum alloy or copper. The heat transfer member 52 is formed in a round bar shape having a length from the bottom surface 11 of the cooking vessel 10 placed on the cooking vessel table 50 to the top plate TP of the IH cooking heater, and is formed at the center of the base table 51. The through hole 5H is loaded.

In addition, a spring 5E that urges the heat transfer member 52 upward in a certain stroke range is incorporated at the base of the heat transfer member 52, and adhesion between the heat transfer member 52 and the bottom surface 11 of the cooking container 10 is ensured. It has become so. By transmitting the heat of the cooking container 10 to the top plate TP level by the heat transfer member 52, various sensors built in the IH cooking heater can be functioned.

  An outlet 53 for taking out the output of the built-in power receiving coil L2 to the outside is provided on the side surface portion of the base table 51 in the cooking container table 10.

  The container lid 60 constituting the upper heater unit of the present invention incorporates a radiant heater 62 on the back side of the lid surface 61, and a post-combustion catalyst member 63 is attached to the exhaust port 6 </ b> H arranged at the center position of the lid surface 61. Do it.

  The lid surface 61 of the container lid 60 is a pressed member made of a stainless steel material having a mirror-finished back surface, and can efficiently reflect heat rays toward the cooking material F. The container lid 60 is set to a size according to the standard of the cooking container 10 and can be used in a mode of covering the cooking container 10.

The post-combustion catalyst member 63 attached to the exhaust port 6H of the container lid 60 is an oxidation promoting catalyst in which a palladium oxide-based catalyst agent is supported on a ceramic substrate having a cell hole structure, and is fitted in the exhaust port 6H. It is attached in the mode to insert. In addition, a sheathed heater is employed as the radial heater 62 and is attached to the rear surface of the lid surface 61 via the stays 6A and 6A while maintaining an appropriate distance. A handle 64 having a socket 6 </ b> S for the radiant heater 62 at the end is attached to the lid surface 61. Further, the handle 64 is provided with a hand switch 6T.

  In the upper heater unit of the present invention, the cooking container base 50 and the container lid 60 are connected by a dedicated connection cord CD, the cooking container base 50 is set at the center of the heating induction coil L1 of the IH cooking heater, and the cooking container base 50 A cooking container 10 such as a frying pan is placed on the top. This is because in this state, the power receiving coil L2 in the cooking vessel table 50 and the heating induction coil L1 of the IH cooking heater have a positional relationship corresponding to the top and bottom, and the electromagnetic conversion efficiency of the power receiving coil L2 is the best.

  The use of the upper heater unit of the present invention realizes smokeless and odorless double-sided baking on the IH cooking heater. This is because smoke and odor substances generated from the cooking material F in the cooking container 10 are heated by the radiant heater 62 and activated after being exhausted from the exhaust port 6H, and then completely burned by the combustion catalyst member 63.

  In addition, the material etc. of the base stand 51 of the cooking container stand 50 in the said embodiment are illustrations, For example, it can also be set as the base stand 51 by clayey materials, such as diatomaceous earth, or a ceramics-type material. Further, for the radiant heater 62, for example, a far-infrared heater containing a ceramic tube or any other heater can be used.

TP Top plate L1 Heating induction coil L1 Power receiving coil 10 Cooking container 50 Cooking container base 5H Through hole 52 Heat transfer member 60 Container lid 6H Exhaust port 6S Heat insulation layer 62 Radiant heater 63 Rear combustion catalyst member

Claims (5)

A non-metallic cooking container base having a built-in power receiving coil that exerts an electromotive force by mutual induction between the induction heating coil of the IH cooking heater and the upper surface so that the cooking container can be stably placed, and the rear surface A built-in radial heater that is driven by the power generated in the power receiving coil on the side, and a container lid that is used in a manner to cover the cooking container placed on the cooking container table,
It is possible to bake the cooking material stored in the cooking vessel placed on the cooking vessel table from both the upper and lower sides by the heat generated by the cooking vessel itself by the induction heating coil and the radiant heat from the radiant heater in the vessel lid. In addition, a top heater unit for an IH cooking heater characterized in that it is possible to balance the amount of baking on both the upper and lower surfaces by adjusting the height of the cooking vessel table.   An exhaust port provided with a post-combustion catalyst member for burning smoke and odor substances generated from the heated cooking material is formed in the container lid, and the post-combustion catalyst member is heated together with the cooking material by the radial heater. The upper heater unit for an IH cooking heater according to claim 1, wherein the upper heater unit is activated by heating.   The upper shape for the IH cooking heater according to claim 1 or 2, wherein an outer shape of the power receiving coil in a plan view is formed to correspond to an outer shape of the induction heating coil of the IH cooking heater in a plan view. Fire heater unit.   The heat insulation layer for interrupting | blocking the heat from the cooking container mounted on the said cooking container stand is formed in the upper surface side of the said receiving coil, The Claim 1 thru | or 3 characterized by the above-mentioned. The upper fire heater unit for the IH cooking heater according to Item 1. A vertical through-hole is formed at the center of the cooking vessel table, and a heat conductive material having a length from the bottom surface of the cooking vessel placed on the cooking vessel table to the top plate of the IH cooking heater is formed in the through-hole. The heat detection member which consists of a high nonmagnetic metal is loaded, and the temperature detection sensor with which the IH cooking heater is equipped is functioned through this heat transfer member. A top heater unit for the IH cooking heater described in 1.

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