JP2003068438A - Winding method of heating coil of electromagnetic cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic cooker, which does not heat the surrounding air directly, and moreover, can heat uniformly in every part of a nearly cone-shaped pan by devising and arranging a heating coil. SOLUTION: To the nearly cone-shaped mount 11 for fixing the heating coil 4, which is equipped with the nearly cone-shaped heating part 1 and heats a pan main part 2, by winding in a shape of a coil, a reversed-cone-shaped guide component 26, which is located above its heating coil face 11B and is used for forming a space H, which has the same or bigger diameter than that of the heating coil 4, for winding and attaching the heating coil, is fixed. Further, the heating coil 4 is wound around an attaching mount 11, by supplying it while giving the set-up tension, in the space H from its perimeter edge.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for winding a heating coil of an electromagnetic cooker, which is particularly effective when performing grilled meat dishes.

[0002]

2. Description of the Related Art Conventionally, when cooking roasted meat as described above, it is common to cook using gas or charcoal.

[0003]

However, when either gas or charcoal is used, not only is the pan for grilling the meat grilled heated, but the ambient air is heated at the same time, so that the ambient temperature rises. Therefore, especially in the summer,
Not only do they tend to shy away from roasted meat, but the cooling costs for lowering the ambient temperature are high and burdensome. In addition, in any case, the same heating temperature cannot be applied to any part of the pan, which not only causes uneven baking, but also takes a long time to reach a predetermined heating temperature. There was also. Further, when using charcoal, although it has the advantage that the taste can be improved by emitting far infrared rays, not only is it necessary to first heat the charcoal so that it can be used. However, it was difficult to finely adjust the temperature, which was disadvantageous in terms of handling.

Therefore, it is conceivable that the roasted meat is cooked by an electromagnetic cooker that does not directly heat the surrounding air. In the electromagnetic cooker, a heating coil is spirally wound around a flat base. Therefore, since the pan is inevitably flat, the oil flowing from the roasted meat cannot be guided downward as in the case of the above-mentioned pan having a substantially conical shape, and it is not suitable for roasted meat. Met. Further, it is conceivable that a plurality of the spirally wound heating coils are arranged at a predetermined distance on the back surface (lower surface) side of the substantially conical pan, but the heating coils are arranged uniformly on the pan. Not only is it difficult to implement, but there is also the disadvantage that the control device for controlling these many coils becomes large, which makes it difficult to implement.

In view of the above situation, the present invention is to solve the problem by arranging the heating coil so as not to directly heat the surrounding air, and which part of the pot having a substantially conical shape. Even in the above, there is a point to provide a method for winding a heating coil of an electromagnetic cooker capable of uniformly heating.

[0006]

In order to solve the above-mentioned problems, the present invention provides a heating method that uses a litz wire or the like for heating a metal pot body having a substantially conical heating portion that constitutes an electromagnetic cooker. A space for winding the heating coil, which is located above the heating coil mounting surface of the mounting base for winding and fixing the coil in a spiral shape and has the same diameter as or larger than the diameter of the heating coil. A guide member having a substantially inverted conical guide surface for forming a coil is wound around the mount by supplying the heating coil from the outer peripheral edge of the guide member to the space while applying a set tension. It is characterized by that. The inventor of the present application, in order to efficiently heat a metal pot body having a substantially conical heating portion, a state in which a predetermined interval is maintained with respect to the lower surface of the plate for performing heat insulation of substantially the same shape. I noticed that the problem can be solved by arranging the heating coil. However, it is a troublesome work to wind the heating coil in a spiral shape in an aligned state without floating on the curved surface of the mounting base. By fixing the guide member having the surface, a jig for winding the heating coil can be configured, and the heating coil can be easily, quickly and surely wound around the mounting base by using the jig. By constructing an electromagnetic cooker with the heating coil wound as described above, it is possible to heat the surrounding air directly without heating the surrounding air directly, and to heat it evenly in any part of the substantially conical pan. it can.

The electromagnetic cooker comprises the pan body, a substantially conical ceramic plate having a heat insulating property on the lower side of the pan body, and a predetermined space on the lower side of the plate with respect to the lower surface of the plate. By configuring the heating coil with the heating coil arranged so as to hold the radiant heat, the radiant heat from the pan body is not transmitted to the heating coil, and the heating efficiency of the heating coil can be prevented from decreasing.

The mounting base is composed of a plurality of plate members arranged substantially radially from the center in a plan view, the guide member is fixed to an upper fixing member and a lower surface of the fixing member, and When a heating coil is wound, the plate member is composed of a plurality of blade members arranged substantially radially from the center in a plan view, and the plate member and the blade member are arranged at positions not overlapping in a plan view. While the heating coil is alternately abutted and guided in the circumferential direction by the blade member and the blade member, the blade member can be reliably wound around the mounting base.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an electromagnetic cooker which is most suitable for performing roasted meat, and in FIG. 1, an opening 1 formed in a desk 10 is shown.
It has shown the electromagnetic cooker attached in the state where one part projected above from 0A. This electromagnetic cooker has a curved surface shape having a smaller diameter toward the upper side, and has a convex portion 1A projecting upward with respect to a concave portion 1B forming a groove for guiding oil or the like discharged from the grilled meat downward. A metal (iron) pot body 2 having a substantially conical heating portion 1, a plate 3 having a substantially same shape (substantially conical) having heat insulating properties on the lower side of the pot body 2, The heating coil 4 is provided below the plate 3 and is arranged at a predetermined distance from the lower surface of the plate 3. Curved surface 1A of the heating unit 1
The radius of curvature of is not limited to that shown in the figure. The pot body 2 may be made of any metal other than a non-magnetic metal such as aluminum or copper.

The pot main body 2 has a horizontal portion 5 extending horizontally from the lower end edge of the heating portion 1, a vertical wall portion 6 rising upward from an outer peripheral edge of the horizontal portion 5, and a vertical wall portion 6 of the vertical wall portion 6. Although the handle portion 7 is provided to extend horizontally from the upper end of the wall portion 6, any shape may be used as long as the handle portion 7 is provided at least.

The plate 3 is arranged close to the back surface of the pan body 2 and has a plate body portion 8 formed in substantially the same shape as the heating portion 1 (substantially conical).
An annular plate-shaped receiving portion 9 that extends substantially horizontally from the lower edge of the plate body 8 and receives the horizontal portion 5 of the pan body 2 is provided. Although it is configured to prevent the heat from the heating unit 1 from being transferred to the (table) 10, the receiving unit 9 may be omitted and the plate 3 may be configured by only the plate body unit 8. Appropriate locations in the circumferential direction of the receiving portion 9 (3 locations in FIG. 1)
In addition, a projecting portion 9A projecting upward is formed, and by receiving the lower surface of the horizontal portion 5 of the pan body 2 by these three projecting portions 9A, heat from the pan body 2 is made difficult to be transferred. ing. Since the plate 3 is made of a ceramic that emits far infrared rays, there is an advantage that the taste can be improved as compared with a plate using a ceramic that does not emit far infrared rays.

As shown in FIGS. 2 and 3, the heating coil 4 is composed of a single (or plural) litz wire formed by twisting a plurality of enameled wires. By spirally winding the plate 11 with no gap, the plate 3 can be arranged at a predetermined distance from the back surface (lower surface) of the plate 3. The distance of the litz wire 4 from the plate 3 is set to a distance that enables the pot body 2 to be efficiently heated. Then, the pan body 2 is heated by magnetic lines of force generated by supplying electric power to the litz wire 4 from a power source (not shown). It is possible to change the strength of the magnetic force generated by the thickness (diameter dimension) and length of the litz wire 4 or the magnitude of the supplied power.
By winding the litz wire 4 without any gap as described above, there is an advantage that the heating temperature can be equalized in any part of the pan body 2.

The mount 11 is composed of eight plate members which are arranged substantially radially from the center in a plan view and are arranged at predetermined intervals on the circumference.
1, a leg portion 11A that is raised upward from an outer peripheral portion of a metal plate 12 that is a fixing member for fixing the plate member 11,
A coil mounting portion 1 including a heating coil mounting surface 11B formed in an arc shape from the upper end of the leg portion 11A toward the center.
It is composed of 1C.

As shown in FIGS. 1 and 2, the metal plate 1
In the casing 13 having a substantially rectangular shape (which may be any shape such as a circle) provided for supporting the power source 2 and the like (not shown), the heating coil 4 is provided with cooling air from a substantially horizontal direction. A cooling fan 14 for supplying the heat is provided so that the temperature rise of the heating coil 4 can be suppressed. 13A shown in FIGS. 1 and 2 is a large number of vertical holes formed on one side of the casing 13 for taking in outside air (cooling air), and 13B shown in FIG.
Is an exhaust port formed on the other side of the casing 13 for exhausting outside air taken into the casing 13 by the cooling fan 14. Moreover, P shown in FIG.
Is a touch-type control panel fixed to one side of the above for operating the electromagnetic cooker, and K is a metal fitting for fixing the casing 13 to the desk 10.
Further, an auxiliary cooling fan 16 for supplying cooling air from below to the heating coil 4 is provided in the space 15 formed below the coil mounting portion 11C of the plate member 11 to cool the heating coil 4. I am trying to improve my ability.

The heating coil 4 is located above the heating coil mounting surface 11B of the mount 11 to form a space H for winding the heating coil, which has a diameter equal to or slightly larger than the diameter of the heating coil 4. It can be wound easily and quickly by using a jig having a lower surface (a guide surface for guiding the coil) formed in a substantially inverted conical shape and fixed to the mounting base 11 side (metal plate 12). The winding method will be described. The guide member 26 is composed of a top plate 20 described later and eight blade members 19 fixed to the lower surface of the top plate 20 and formed in an arc shape, the lower surface of which is located on the lower side toward the outside. However, other configurations may be used. As shown in FIG. 4, of the two through holes 11a and 11b formed in each of the three specific plate members 11 of the eight plate members 11, one end of the heating coil 4 is provided in the upper through hole 11a. After being inserted, one end of the heating coil 4 is fixed by inserting it into one of the through holes 12A and 12B formed in the metal plate 12. Then, as shown in FIGS. 4 and 6, the upper and lower plate portions 1
The upper end of the cylindrical shaft 17 as a spacer, in which the nuts N are welded to the inner surfaces of 7A and 17B, is provided with eight blade members 1.
The bolts 21 are fixed by screwing the bolts 21 through the holes formed in the top plate 20 to the nuts N on the upper side in a state in which 9 is applied to the top plate 20 provided radially from the center. next,
The washer 1 is provided in the recess of the central portion of the eight plate members 11.
8 is placed, and the cylindrical shaft 17 is inserted into the hole of the washer 18.
, And then the bolt 22 inserted from the metal plate 12 is screwed into the lower nut N, so that the curved lower end surface (guide surface) of the concave shape is located downward toward the outer peripheral side of the blade member 19. ) A top plate 20 provided with eight blade members 19 in a state in which 19A is positioned at a set distance close to the placement surface 11B of the coil placement portion 11C of the plate member 11, that is, in the state where the space H is formed. The jig can be fixed to form the jig. The mounting surface 1 of the coil mounting portion 11C
As shown in FIG. 6, the distance between 1B and the curved lower end surface 19A of the blade member 19 is set at the center side end portion of the blade member 19 so as to enter the recess formed in the center portion of the plate member 11 and perform positioning. It is determined by the protruding amount of the formed protruding portion 19T. Reference numeral 23 shown in FIGS. 4 and 6 is a washer. With the configuration as described above, for example, by rotating the metal plate 12 clockwise (may be counterclockwise) with the right hand and winding the heating coil 4 counterclockwise (clockwise may be applied) while applying tension. As shown in FIG. 7, it can be wound in a spiral shape. Then, after winding the heating coil 4 up to the set number of turns, the bolt 22 is loosened, the lower end of the cylindrical shaft 17 is removed from the metal plate 12, and the heating coils 4 are fixed to each other by using a heat resistant bond or the like. After fixing, as shown in Figure 3,
One end of the heating coil 4 is covered with the insulating material 25 and then penetrated into the one hole 12A, and the other end is covered with the insulating material 25 in the same manner and penetrated into the other hole 12B. Will be connected. 24 shown in FIG.
Is a ring member for filling the concave portion at the center of the plate member 11. In the state before the heating coil 4 is wound, that is, in the state where the top plate 20 and the metal plate 12 are fixed, as shown in FIG.
1, that is, the blade member 19 and the plate member 11 are arranged so as to have different phases in the plan view of FIG. 5, so that when the heating coil 4 is wound,
The blade member 19 and the plate member 11 can alternately regulate the vertical position of the heating coil 4 in the winding direction so that the heating coil 4 can be smoothly and reliably wound. The optimum state is that each blade member 19 is located in the intermediate portion between the plate members 11 and 11, but it may be in any position as long as it has a different phase.
Further, the heating coil 4 may be wound with the blade members 19 and the plate members 11 in the same phase. In this case, the heating coil 4 is provided between the blade member 19 and the plate member 11.
Although the heating coil 4 may be slightly sluggish when it enters, the heating coil 4 can be reliably wound in the same manner as described above. 12K and 12H shown in FIG. 5 are the metal plates 1
There are two types of holes, large and small, formed in 2, so that the outside air taken in as described above does not stay inside.

[0016]

According to the first aspect of the invention, the electromagnetic cooker is composed of the heating coil wound in a substantially conical shape, so that the ambient temperature is not directly heated and the substantially conical pan is used. It is possible to uniformly heat any part of the skin. In particular, when grilling a roasted meat or the like, it is advantageous because the oil discharged from the meat can be guided downward. Moreover, the heating coil can be easily, quickly and surely wound around the mounting base by using the coil winding jig in which the guide member having the substantially conical guide surface is fixed to the mounting base. There is an advantage that can be done efficiently.

According to the invention of claim 2, an electromagnetic cooker is provided,
Consists of a pot body, a substantially conical ceramic plate on the lower side of the pot body, and a heating coil arranged below the plate at a predetermined distance from the lower surface of the plate By doing so, radiant heat from the pan body is not transmitted to the heating coil, and it is possible to provide an electromagnetic cooker that can suppress the heating efficiency of the heating coil from being reduced and can perform efficient heating. .

According to the third aspect of the invention, the mounting base is composed of a plurality of plate members arranged substantially radially from the center in a plan view, and the guide member is a fixing member located on the upper side.
The fixing member is composed of a plurality of blade members that are fixed to the lower surface of the fixing member and that are arranged substantially radially from the center in plan view, and the plate member and the blade member are arranged at positions that do not overlap in plan view. Even though the heating coil is wound with the jig configured as described above, the plate member and the blade member can reliably guide the heating coil in the circumferential direction while winding around the mounting base.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an electromagnetic cooker attachable to a desk.

FIG. 2 is a vertical sectional view of an electromagnetic cooker attached to a desk.

FIG. 3 is a perspective view showing a state in which a heating coil has been wound.

FIG. 4 is an exploded perspective view of a jig used when winding a heating coil.

FIG. 5 is an explanatory view seen from a plane showing the positions of the blades of the jig for winding the heating coil with respect to the mounting base of the heating coil.

FIG. 6 is a vertical cross-sectional view showing a state where the heating coil is wound using a jig.

FIG. 7 is an explanatory diagram showing a state in which the heating coil is being wound.

[Explanation of symbols]

1 heating part 1A convex part 1B recess 2 pan body 3 plate 4 heating coil 5 Horizontal part 6 Vertical wall part 7 Handle 8 Plate body 9 Receiving part 9A Projection part 10 desk 10A opening 11 Mounting stand 11A Leg 11B mounting surface 11C coil mounting portion 11a, 11b holes 12 metal plate (fixing member) 12A, 12B, 12K holes 13 Casing 13A Vertical hole 13B exhaust hole 14 cooling fan 15 space 16 auxiliary cooling fan 17 Cylindrical shaft 17A, 17B Upper and lower plate parts 18 Washer 19 Blade 19A Curved lower end surface (guide surface) 19T protrusion 20 Top plate 20A hole 21 bolts 22 bolts 23 washer 24 25 Insulation 26 Guide member N nut K metal fittings H space

Claims (3)

[Claims] 1. A substantially conical attachment for spirally winding and fixing a heating coil made of a litz wire or the like for heating a metal pot body having a substantially conical heating part constituting an electromagnetic cooker. A guide member having a substantially inverted conical guide surface for forming a space for winding the heating coil, which is located above the heating coil mounting surface of the table and has a diameter equal to or larger than the diameter of the heating coil. The method for winding a heating coil of an electromagnetic cooker, wherein the heating coil is wound around the mounting base by supplying the heating coil to the space from its outer peripheral edge while applying a set tension. 2. The electromagnetic cooker comprises the pan body, a substantially conical ceramic plate having heat insulating properties on a lower side of the pan body, and a lower surface of the plate with respect to a lower surface of the plate. The method for winding a heating coil of an electromagnetic cooker according to claim 1, wherein the heating coil is arranged so as to maintain a predetermined interval. 3. The mounting base is composed of a plurality of plate members arranged substantially radially from the center in a plan view, and the guide member is fixed to an upper fixing member and a lower surface of the fixing member. 2. The heating of an electromagnetic cooker according to claim 1, wherein the heating is made up of a plurality of blade members arranged substantially radially from the center in plan view, and the plate member and the blade member are arranged at positions not overlapping in plan view. How to wind the coil.