JP2006061298A - Ih cooking pot - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive and durable IH cooking pot with flavorful outer appearance as an earthen pot, capable of reducing heat radiation from a lid, securing the non-stickiness of the cooking surface and preventing separation or injury of a fluororesin layer caused by the friction with the lid. <P>SOLUTION: The IH cooking pot comprises the lid 4 made of a ceramic base material, a body 1 made of an aluminum alloy base material or aluminum base material and a heating element 2 on the bottom of the body 1. A glaze layer 5 is formed in part of the lid 4 in contact with the body 1, and the surface roughness of the part of the lid 4 in contact with the body 1 is not more than 2 μm. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pan for an IH cooker that is used for cooking as an object to be heated in an IH cooker, is particularly inexpensive and strong, and has an appearance as a clay pot.

  Conventionally, there is a need for a pot made of earthenware (hereinafter referred to as a clay pot) because it is preferable in terms of flavor and heat retention.

  In recent years, an IH cooker built in a 200 V system kitchen has become widespread, and a durable and suitable pan for electromagnetic induction heating that can be used for a long time is desired.

And as a conventional pan for IH cooking appliances, for example, there is a pan in which a heating element layer is formed on an aluminum alloy body like a heated cooker for an electromagnetic induction heating cooker described in Patent Document 1, and a pot made of ceramics It was a cheap and durable pot that could be used for a long time.
JP-A-6-215862

  However, a conventional aluminum alloy body uses a glass or aluminum alloy lid for the lid that covers the body, and has no appearance as a clay pot.

  Furthermore, since the aluminum alloy body has good heat conduction and heat is easily transferred from the aluminum alloy body to the lid, there is a problem in that heat radiation from the lid to the outside air becomes large and the lid handle becomes hot.

  Moreover, since it is difficult to make the shape of a handle with glass with a glass lid, it is usually necessary to attach a resin handle, and there is a problem that the flavor as a clay pot is impaired.

  In addition, the glass lid has a problem that it is less likely to have a flavor and costs are increased by attaching a stainless steel cover to the abutting portion to prevent the body abutting on the lid from being damaged. .

  On the other hand, the aluminum alloy lid has a problem in that it is difficult to form an organic film such as a fluorine coat on the cooking surface of the body because the body contacting the lid is damaged.

  In order to solve the above-mentioned conventional problems, an IH cooker pan according to the present invention includes a lid made of a ceramic base material, an aluminum alloy base having a fluororesin layer formed on a portion contacting the lid, a cooking surface, and an outer surface. A body made of a material or an aluminum base, and a heating element at the bottom of the body, forming a glaze layer at least on the lid portion that contacts the body, and the surface roughness of the lid portion contacting the body By making it a pan for IH cooker with a thickness of 2 μm or less, the non-stickiness of the cooking surface can be secured, the fluororesin layer can be prevented from being peeled off or scratched by friction with the lid, inexpensive and durable, as a clay pot It is possible to provide a pan for an IH cooker that has a flavor in appearance and that can reduce heat dissipation from the lid.

  According to the first and seventh aspects of the present invention, it is possible to provide an IH cooker pan that is inexpensive and strong, and has a flavor as an earthen pan.

  Moreover, the heat dissipation from a lid | cover can be reduced by using the earthenware base material with small heat conductivity.

  According to the first, second, third, and fourth aspects of the invention, the body can ensure the non-adhesiveness of the cooking surface and prevent the fluororesin layer from being peeled off or scratched by friction with the lid. It is possible to produce a flavor using a textured ceramic lid.

  According to the fifth aspect of the present invention, the splashing and spilling of hot water on the flange can be reduced.

  According to the invention of claim 6, the pan can be used safely.

  According to a first aspect of the present invention, there is provided a lid made of a pottery base material, a body made of an aluminum alloy base material or an aluminum base material having a fluororesin layer formed on a portion contacting the lid, a cooking surface and an outer surface, and a bottom of the body. A heating element is provided, and a glaze layer is formed on at least a portion of the lid that comes into contact with the body, and the surface roughness of the lid that comes into contact with the body is 2 μm or less. It becomes possible to provide a pan for an IH cooker having a flavor in appearance.

  In addition, because the body is made of an aminium alloy, more heat is transferred from the body to the lid. However, heat dissipation from the lid can be reduced by using a ceramic base material with low thermal conductivity for the lid.

  Further, it becomes possible to prevent the fluororesin layer of the body from being peeled off or scratched by friction with the lid, and it is possible to produce a flavor using a textured ceramic lid.

  In particular, the second invention is the lid that contacts the body after the glaze is applied to the portion of the lid that is supported by a plurality of locations on the back surface of the lid after the ceramic base material of the first invention is once fired. The lid that is fired for the second time without floating the part and formed a glaze layer on the lid part that comes into contact with the body, thereby suppressing the deformation of the lid and making the smooth glaze layer in contact with the pan The surface roughness of the lid can be reduced to 2 μm or less.

  In the third invention, in particular, the glaze layer of the second invention is formed on the entire surface of the lid, so that the table can be prevented from being damaged when the lid is placed on the table or the like.

  According to the fourth invention, in particular, by using a ceramic base material having a thermal shock resistance of 200 ° C. or higher for the lid of the first invention, the lower surface of the outer periphery of the lid is installed by the first firing to be transformed into a ceramic base material. After firing so as not to come out, glaze is applied to the portion of the lid that comes into contact with the pan, and a smooth glaze layer can be formed by second firing.

  In particular, the fifth aspect of the present invention is a plurality of the first aspect of the present invention, which is formed on a flange having a steam port formed of a vertically penetrating hole and a flange portion on an upper part of the body so as to install the lid, and is higher than the flange. By forming the installation portion, hot water splashing and spilling on the flange can be reduced.

  The sixth invention, in particular, by providing a lid having a steam port consisting of a hole penetrating vertically in the range of 0 to 10 ° in the direction opposite to the lid center direction from the vertical direction in the fifth invention, Since the steam is less likely to be ejected in the direction of the lid handle and the pan handle, the pan can be used safely.

  In particular, the seventh invention can provide an inexpensive and durable pan for an IH cooker by integrating the first invention with a body by insert-molding a heating element made of magnetic stainless steel.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
Hereinafter, 1st Embodiment of the pan for IH cookers of this invention is described based on FIG.

  FIG. 1 is a cross-sectional view of an IH cooker pan, and FIG. 2 is an upper view of an IH cooker pan body.

  An IH cooker pan body 1 (hereinafter referred to as a body) is made of aluminum die-casting (ADC 1). A fluororesin layer 3 having a thickness of 25 to 40 μm is formed.

  In addition, about the formation method of the heat generating body 2, although it may form by iron spraying, press injection, etc. instead of an insert, since it integrated with the body 1 by insert molding, it becomes possible to provide a strong pan at low cost.

  The fluororesin layer 3 is composed of a primer layer and a top layer (not shown), sprayed with a primer paint containing a PTPE resin, a pigment, a binder resin, and a solvent, and then dried at 100 ° C. to obtain a PTPE resin. And a top paint containing a pigment and a solvent are further spray-coated, dried and baked at 390 ° C.

  In addition, the fluororesin of the fluororesin layer 3 may improve slipperiness even when a PFA resin or FEP resin is used in addition to the PTFE resin.

  Moreover, the lid 4 made of a ceramic base material covering the body 1 is made of an oxide mainly composed of silicon and aluminum, and has silicon oxide as a main component at a place other than the portion of the lid 4 that contacts the body 1. After applying the glaze, firing is performed once at 1,200 ° C.

  Then, after applying glaze to the portion of the lid 4 that is supported by the three locations 4a on the back surface of the lid 4 and contacts the body 1, the portion of the lid 4 that contacts the body 1 is lifted and the lid 4 is not installed on the body 1. The glaze layer 5 is formed in the part of the lid | cover 4 which is baked for the second time and contacts the body 1.

  As a result, deformation and deposits can be prevented, and the glaze layer 5 having a surface roughness of 2 μm or less can be formed on the portion of the lid 4 in contact with the body 1. The fluororesin layer 3 can be peeled off or scratched by friction with the lid 4. You can prevent it.

  Moreover, the glaze formation method can form the glaze layer 5 on the entire surface of the lid 4, but at the first firing, the glaze layer 5 is formed only on the portion of the lid 4 that contacts the body 1 without applying the glaze. You may do it.

  In this case, by forming the glaze layer 5 on the entire surface, it is possible to prevent damage when the lid 4 is placed on a table or the like.

  In addition, if the earthenware base material of the portion of the lid 4 in contact with the body 1 is smoothed and the glaze layer 5 is formed, the surface roughness can be reduced to 1 μm or less, and scratches on the fluororesin layer 3 can be further suppressed.

  And since the earthenware base material endures the temperature rise at the time of the 2nd baking, the earthenware base material which has the thermal shock resistance of 200 degreeC or more is used, and the deformation | transformation or a crack of the earthenware base material is prevented.

  As described above, by preventing the fluororesin layer 3 from being peeled off or scratched by friction with the lid 4, a pot for an IH cooker using the ceramic lid 4 for the inexpensive aluminum die-cast body 1 is provided. It becomes possible to give it a flavor as a clay pot.

  Furthermore, since the thermal conductivity of the earthenware is about 1.1 to 1.7 W / (m · K), the heat radiation from the lid 4 of the earthenware base material can be reduced, and the lid made by cutting after molding. Since the handle 4b is an earthenware base material having a low thermal conductivity even if it is integrated with the lid, the temperature of the lid handle 4b does not increase and can be used safely and conveniently.

  Further, a steam port 6 formed of a hole penetrating vertically in the lid 4 and a flange 7 positioned on the outer peripheral lower surface of the lid 4 are formed on the upper portion of the body 1. Then, by forming three installation portions 8 that are 5 mm higher than the flange 7 around the center of the inner surface of the body 1 at intervals of 120 ° as shown in FIG. 2, steam inside the body 1 is separated between the three installation portions 8. Since it can be smoothly put out from the gap between the body 1 and the lid 4, spillage is reduced.

  Further, in the case of a body with good heat conduction such as aluminum die casting, there is a danger that the hot water accumulated in the flange 7 is heated by the flange 7 and splatters. However, an installation portion 8 is formed between the flange 7 and the lid 4 to form a gap. By providing, it is safe because the hot water can be returned to the inside of the body 1 and water can be prevented from collecting in the flange 7.

  Furthermore, by providing a lid having a steam port consisting of a hole penetrating vertically within a range of 0 to 10 ° in the direction opposite to the lid center direction from the vertical direction, the steam ejection direction is determined, and the steam is covered with the lid handle and pan. Since it becomes difficult to eject in the direction of the handle, it is difficult to touch the user and the pan can be used safely.

  In addition, when the steam port 6 is present, the thermal power feeling can be confirmed by the amount of steam emitted from the steam port 6, so that the thermal power can be adjusted early.

  In addition, a handle 9 for moving the body 1 is formed on the upper portion of the outer surface of the body 1 to suppress heat conduction of the body 1 and improve usability.

  As described above, the pot for IH cooker according to the present invention is inexpensive and strong, and has a flavor in appearance as a clay pot. Therefore, it can be applied to other uses such as a pot for cooking utensils.

Sectional drawing of the pan for IH cookers shown in Embodiment 1 Upper view of pan body for IH cooker shown in embodiment 1.

Explanation of symbols

1 Body 2 Heating Element 3 Fluorine Resin Layer 4 Lid 5 Glaze Layer 6 Steam Port 7 Flange 8 Installation Section

Claims (7)

A lid made of a ceramic base material, a body made of an aluminum alloy base material or an aluminum base material having a fluororesin layer formed on a portion contacting the lid, a cooking surface and an outer surface, and a heating element at the bottom of the body A pan for an IH cooker in which a glaze layer is formed at least on a portion of the lid that contacts the body, and a surface roughness of the portion of the lid that contacts the body is 2 μm or less. After firing the earthenware base material once, after applying glaze to the part of the lid that supports the body and supports it at multiple locations on the back of the lid, the second part is fired without floating the part of the lid that contacts the body And the pan for IH cookers of Claim 1 which formed the glaze layer in the part of the said lid | cover contact | abutted with the said pan. The pan for an IH cooker according to claim 2, wherein the glaze layer is formed on the entire surface of the lid. The pot for an IH cooker according to claim 2, wherein the lid is a pottery base material having a thermal shock resistance of 200 ° C or higher. 2. The IH cooking according to claim 1, further comprising: a lid having a steam port composed of a vertically penetrating hole; and a plurality of installation portions formed on a flange portion at an upper part of the body to be installed on the body, the elevation portions being higher than the flange. Dessert pan. The pan for an IH cooker according to claim 5, further comprising a lid having a steam port made of a hole penetrating vertically within a range of 0 to 10 ° in a direction opposite to the lid center direction from the vertical direction. The pan for an IH cooker according to claim 1, wherein a heating element made of magnetic stainless steel is integrated with the body by insert molding.

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