KR100756490B1 - Induction kitchen container and thereof manufacturing method - Google Patents

Abstract

An induction container and a manufacturing method thereof are provided to maximize the productivity and to improve the induction heating efficiency by securely fixing an induction heating plate at the lower part of a non-ferrous container. An induction container comprises an induction heating plate(70), a non-ferrous rivet(80), and a fixing piece(90). The induction heating plate is fixed on the lower part of a non-ferrous container. The non-ferrous rivet is composed of a leg(82) stood to be combined into the non-ferrous container while contacting a head(81) at the upper part of the induction heating plate. The fixing piece is welded on the induction plate which pressing the head and includes a center hole(91) receiving the leg.

Description

INDUCTION KITCHEN CONTAINER AND THEREOF MANUFACTURING METHOD}

1 is a conceptual diagram illustrating a method of manufacturing an induction container according to the prior art.

2 is a conceptual view illustrating a method of manufacturing an induction container according to a first application.

3 is a conceptual view illustrating a method of manufacturing an induction container according to a second prior application.

Figure 4 is a perspective view showing a magnetic steel plate applied to the induction container according to the second prior application.

5 is an exploded perspective view showing an induction heating plate and a reinforcement plate applied to the induction container according to the present invention.

Figure 6 is a perspective view showing the assembled state of the induction heating plate and the reinforcement plate applied to the induction container according to the present invention.

Figure 7 is a perspective view including a major incision showing the induction container according to the present invention.

8 to 11 is a process chart for explaining the manufacturing method of the induction container according to the present invention.

       ≡ * ≡ Explanation of symbols for the main parts of the drawing ≡ * ≡

100: induction container 60: non-ferrous container

70: induction heating plate 71: bent portion

72: support hole 75: reinforcement plate

75a: through hole 80: non-ferrous rivet

81: head 82: leg

90: fixed piece 91: center hole

92: wing T: crevice

G1: Female mold P: Support pin

G2: Male mold

The present invention relates to an induction container and a method of manufacturing the same, and more particularly to an induction container capable of firmly fixing an induction heating plate to a lower portion of a non-ferrous container and maximizing productivity while maximizing productivity. It relates to a manufacturing method.

Induction ranges generally include a coil that generates a magnetic field when a high voltage is applied, and a magnetic material (induction heating plate) in a region affected by the magnetic field of the coil is heated, that is, an induction heating plate. It refers to a kitchen appliance that can be cooked using the principle that the induction container provided is heated.

In addition, the kitchen container uses aluminum or stainless steel (SUS304), which is a non-magnetic material, to prevent corrosion, but the kitchen container used for the induction stove, that is, the induction container has at least a portion of the bottom of the induction stove, that is, magnetic Induction heating plates shall be provided.

More specifically, the induction container should contain a Fe component at the bottom, the induction vessel such as a pot frying pan kettle pressure cooker, etc. may be completed by attaching a magnetic material, that is, an induction heating plate on the bottom surface of the non-ferrous body.

At this time, the body of the induction container may use a non-ferrous material such as aluminum, the induction heating plate may utilize 24 kinds of stainless steel (SUS430) having a Fe component.

1 is a conceptual diagram illustrating a method of manufacturing an induction container according to the prior art.

The method of manufacturing an induction container according to the prior art basically prepares a male mold 10 and a female mold 20 as shown in FIG. 1, and a plurality of magnets on the bottom surface 15 of the female mold 20. (25) is fixed.

 Then, when the aluminum melt is injected between the male mold 10 and the female mold 20, the magnet 25 may be deformed by rapid heating, so that the entire female mold 20 is preheated in advance.

Subsequently, when the magnetic steel plate 30 (induction heating plate) is placed on the female mold 20, the magnetic steel sheet 30 may be maintained in close contact with the female mold 20 by the magnetic force of the magnet 25. Injecting the aluminum melt between the male mold 10 and the female mold 20 in the state and then quenched to make an induction container integrated with the magnetic steel plate 30 and the aluminum melt by die casting.

By the way, in the manufacturing method of the induction container according to the prior art as described above, the magnet 25 fixed to the bottom surface 15 of the female mold 20 loses the magnetic force when a certain period of time has elapsed, the magnetic steel sheet 30 The phenomenon that the adhesion is not frequent often causes an error that the aluminum melt flows between the magnetic steel sheet 30 and the female mold 20 when the aluminum melt is injected, and after the induction container is manufactured, it is fixed to the bottom surface of the magnetic steel sheet 30. There is the inconvenience of having to further remove the melted aluminum.

In addition, the induction container manufactured according to the prior art has a disadvantage in that the magnetic steel sheet 30 and the aluminum melt have different temperature expansion rates, and thus are easily separated during use, and thus have a very short lifespan.

FIG. 2 is a conceptual view for explaining a method of manufacturing an induction container according to the first application 10-2000-23178.

As shown in FIG. 2, the method of manufacturing the induction container according to the first application includes the magnetic steel plate 30 (induction heating plate) inside the female mold 20 by the suction force of the air adsorber 40 and the repulsive force of the spring 50. Die casting in close contact with the bottom surface 15 is proposed to prevent the aluminum melt from flowing into the gap between the bottom surface 15 and the magnetic steel sheet 30 of the female mold 20.

By the way, the first application is to provide a separate air adsorber 40 in order to contact the magnetic steel plate 30 to the bottom surface 15 of the female mold 20, the air passage 45 in the female mold 20 ), There is a problem that there are many work processes and the price of mold increases.

In particular, the spring (50, such as heat-treated steel) and the aluminum melt for elastically pushing the magnetic steel sheet 30 to the bottom surface 15 of the female mold 20 is made of a different material because the induction container is completed After that, the upper end of the spring 50 is exposed to the inside thereof, so that the difficulty of coating and pressing of food during cooking frequently occur, which greatly reduces the quality of the product.

3 is a conceptual view illustrating a method of manufacturing an induction container according to the second pre-appearance (10-2000-51553), and FIG. 4 is a perspective view showing a magnetic steel plate (induction heating plate) applied to the induction container according to the second pre-appeal.

The second application is located in the female mold 20 after placing the magnetic steel plate 30 in which the plurality of elastic protrusions 32 are radially projected about the through-hole 31 drilled by press punching. ) Is combined to bend the end 32a of the elastic protrusion 32 of the magnetic steel plate 30 to the bottom surface 16 of the male mold 10, the magnetic steel plate 30 is the bottom surface of the female mold 20 To close contact with (15).

Then, by injecting the aluminum melt between the male mold 10 and the female mold 20, it is possible to complete the production of the induction container by die casting.

At this time, the male mold 10 suppresses the elastic protrusion 32 of the magnetic steel plate 30 fixed to the female mold 20, and thus the elastic protrusion 32 has a sharp end portion 32a of the male mold ( While bent and touching the bottom surface 16 of 10), while acting as an elastic body, the gap between the bottom surface 15 and the magnetic steel sheet 30 of the female mold 20 can be eliminated while preventing the inflow of the aluminum melt in advance. The elastic protrusions 32 of the magnetic steel plate 30 may be buried in the aluminum bottom surface to be firmly coupled to each other.

However, the manufacturing method of the induction container according to the second application is also a phenomenon that the sharp end 32a of the elastic protrusion 32 formed on the magnetic steel plate 30 is exposed to the inside of the induction container, so that the difficulty of coating and the sticking of food when used There is still a problem that greatly degrades the quality.

The present invention has been made to solve the above shortcomings, and its object is to allow the induction heating plate to be firmly fixed to the lower part of the non-ferrous container and to maximize the productivity while greatly improving the product quality. An induction container and a method of manufacturing the same.

The present invention for achieving the above object

In the induction vessel in which the induction heating plate is fixed to the lower portion of the non-ferrous container,

A non-ferrous rivet having a leg that is erected into the non-ferrous container while the head abuts on an upper portion of the induction heating plate,

And a fixing piece which has a center hole for receiving the leg and is spot welded to the induction heating plate while pressing the head.

The present invention for achieving the above object,

(S10) a step of spot welding the fixing piece to the induction heating plate so as to fix the head while the leg is held upright so that the head of the non-ferrous rivet abuts on the induction heating plate;

(S20) placing the induction heating plate on the female mold;

(S30) step of joining the male mold while pressing the non-ferrous rivet so that the induction heating plate is in close contact with the female mold,

(S40) The non-ferrous melt is injected between the female mold and the male mold, and then cooled to die-cast the non-ferrous container incorporated with the induction heating plate to complete the induction vessel.

Hereinafter, a preferred embodiment of an induction container and a method of manufacturing the same according to the present invention will be described with reference to the drawings, and a plurality of the embodiments may exist, and through these embodiments, the objects, features, and advantages of the present invention. To understand them better.

5 is an exploded perspective view showing an induction heating plate and a reinforcement plate applied to the induction container according to the present invention, Figure 6 is a perspective view showing the assembled state of the induction heating plate and reinforcement plate applied to the induction container according to the present invention, Figure 7 A perspective view including a major incision showing an induction container according to the invention.

Induction container 100 according to the present invention is designed in a structure in which the induction heating plate 70 is fixed to the lower portion of the non-ferrous container 60, as shown in FIG.

The non-ferrous container 60 may be mainly made of an aluminum material, and the induction heating plate 70 may be made of stainless steel (SUS430) having an Fe component, and the present invention is not limited thereto.

The core of the present invention has been proposed to allow the induction heating plate 70 to be more firmly fixed to the lower portion of the non-ferrous container 60 and to greatly improve the quality of the product while maximizing ease of manufacture. .

In order to realize such a proposal, the present invention intends to utilize a nonferrous rivet 80 having the same properties as the nonferrous container 60.

That is, the non-ferrous container 60 and the non-ferrous rivet 80 may be made of, for example, a material such as aluminum copper or nickel, and furthermore, the non-ferrous rivet (for die-casting) of the non-ferrous container 60. 80) the same properties and properties as the physical properties of each other to repeat the high heat when cooking food and cold heat when washing food to minimize the separation between each other, as well as the coating layer inside the non-ferrous container 60 ( The reaction (not shown) and the non-ferrous container 60 and the non-ferrous rivet 80 mutual reaction and reaction to the coating layer also coincide with each other to prevent local pressing of meat and the like.

However, since the non-ferrous rivet 80 and the induction heating plate 70 cannot be spot welded with each other depending on the presence or absence of Fe components, it is extremely difficult to attach the induction heating plate 70 to the lower portion of the non-ferrous container 60. .

In order to overcome this limitation, that is, in order to incorporate the induction heating plate 70 into the non-ferrous container 60 using the non-ferrous rivet 80, the present invention intends to utilize the fixing piece 90.

More specifically, the non-ferrous rivet 80 applied to the induction container 100 according to the present invention is a leg that is erected to be incorporated into the non-ferrous container 60 while the head 81 abuts on the upper portion of the induction heating plate 70. And the fixing piece 90 has a center hole 91 for receiving the leg 82 of the nonferrous rivet 80 and is spot welded to the induction heating plate 70 while pressing the head 81.

At this time, the fixing piece 90 has a Fe component of the same material as the induction heating plate 70 to enable spot welding between each other, and thus the non-ferrous rivets 80 are induction heating plate 70 by the fixing piece 90. By being able to stand up in the induction container 100, the leg 82 of the non-ferrous rivet 80 can be incorporated into the non-ferrous container 60 with the same physical properties, thereby tightly fixing the induction heating plate 70 In addition to minimizing the mutual phenomena, the coating layer [not shown; Meat and the like by the same thermal reaction (same reaction to the heat of the non-ferrous container 60 and the non-ferrous rivet 80 when cooking the induction container 100) through the uniform maintenance of the coating layer provided on the bottom of the induction container 100] Local pressing can be minimized.

At this time, the fixing piece 90 is provided with a blade 92 extending radially to maintain the gap (T) from the induction heating plate (70).

That is, the induction heating plate 70 and the wings 92 of the fixing piece 90 maintain the gap T so that the aluminum melt can be more closely coalesced by pinching and fixing the gap T.

On the other hand, it is preferable that the induction heating plate 70 has a bent portion 71 whose edge region extends in the upper and outer directions and is bent into the nonferrous container 60.

More specifically, the bending portion 71 of the induction heating plate 70 into the non-ferrous container 60 during the casting of the induction container 100 to be plunged to maximize the mutual coupling force.

Furthermore, the induction container 100 according to the present invention may further include a reinforcing plate 75 having a jagged shape (multiple tunnel shapes) that is spot welded to the center region of the induction heating plate 70. 75 may be provided with an intermittent through hole 75a.

When the induction heating plate 70 and the non-ferrous container 60 are combined through the non-ferrous rivet 80, point coupling can be achieved. However, when the reinforcing plate 75 is provided, a line coupling between the non-ferrous rivets 80 is possible. It is preferable in terms of maximizing the binding force, and in particular, through the through hole 75a which is intermittently drilled into the reinforcing plate 75, it is possible not only to smoothly flow the aluminum melt during casting, but also through the hole 75a. It can be advantageous in that the aluminum melt is integrated into the upper and lower portions of the reinforcing plate 75 through the) can be more firmly fixed.

8 to 11 is a process chart for explaining the manufacturing method of the induction container according to the present invention.

In the method of manufacturing the induction container according to the present invention, as shown in FIGS. 8 to 11, first, the leg 82 is erected so that the head 81 of the non-ferrous rivet 80 abuts on the induction heating plate 70. At the same time, the fixing piece 90 is spot-welded to the induction heating plate 70 so as to fix the head 81 while receiving the leg 82 as the center hole 91 (S10).

At this time, by spot welding the reinforcing plate 75 of the jagged shape in the center region of the induction heating plate 70 may be able to maximize the binding force with the non-ferrous container 60.

Then, the induction heating plate 70 is disposed on the female mold G1 (S20), and then the male mold G2 is joined while pressing the non-ferrous rivet 80 so that the induction heating plate 70 is in close contact with the female mold G1. Let (S30).

At this time, in the step S20 the induction heating plate 70 is provided with a support hole 72 and the female die (G1) is provided with a support pin (P), these support holes 72 and the support pin (P) is fitted It is preferable to prevent the flow phenomenon of the induction heating plate 70 during casting by matching and matching.

In addition, by injecting a non-ferrous melt (aluminum melt) between the female mold (G1) and the male mold (G2) and then cooled to die-cast the non-ferrous container 60 coalesced with the induction heating plate 70 to manufacture the induction container 100 It can be completed (S40).

Subsequently, subsequent processes such as air washing and grinding and coating and patterning and patterning are commonly performed at the level of those skilled in the art.

As described above, the present invention can more firmly fix the induction heating plate 70 to the lower portion of the non-ferrous container 60, and at the same time, maximize the productivity through ease of manufacturing and the quality of the product [more specifically, the induction heating plate [70] can be used without damaging the overall area of the quality that can maximize the induction heating efficiency] has a significant effect that can be greatly improved.

More specifically, by using the non-ferrous rivet 80 having the same properties as the non-ferrous container 60 to more firmly fix the induction heating plate 70 by the high heat when cooking food and cold heat when washing Even if repeated, it is possible to minimize the separation and separation between each other and at the same time it can prevent the partial peeling phenomenon of the inner coating layer of the non-ferrous container 60, there is a remarkable effect that can eliminate the sticking phenomenon such as meat.

In addition, the non-ferrous rivets 80 may be erected to the induction heating plate 70 by the fixing piece 90 so that the legs 82 of the non-ferrous rivets 80 may be non-ferrous in casting the induction container 100. It can be incorporated in the container 60, thereby minimizing the phenomenon of mutual expansion together with the tight fixation of the induction heating plate 70, and also the pressing of meat and the like by the same thermal reaction through the uniform maintenance of the coating layer There is a useful effect that can be minimized.

In particular, by maintaining the gap (T) between the induction heating plate 70 and the blades 92 of the fixing piece 90, the aluminum melt is pinched and fixed to the gap (T), the non-ferrous container 60 and the induction heating plate ( 70) has the advantage of being able to integrate closely.

In addition, there is an advantage that the bending portion 71 of the induction heating plate 70 into the non-ferrous container 60 during the casting of the induction container 100 to be plunged to maximize the mutual coupling force.

As can be seen from the above object, configuration, and effect of the present invention, the present invention is to make the induction heating plate 70 more firmly fixed to the lower portion of the non-ferrous container 60, and other changes are the core technology. Possible configurations can be understood as the number of cases (number of cases where the nonferrous rivet 80 is bolted or conical without a head or the fixture 90 is nut type). The invention encompasses all such cases where such changes are possible and the interpretation of the claims shall also be equivalent.

Claims (8)

In the induction vessel 100, the induction heating plate 70 is fixed to the lower portion of the non-ferrous container 60, A non-ferrous rivet 80 having a leg 82 erected to be integrated into the non-ferrous container 60 while the head 81 abuts on the induction heating plate 70; An induction container 100 having a center hole 91 for receiving the leg 82 and a spot piece 90 which is spot welded to the induction heating plate 70 while pressing the head 81. ). The method of claim 1, Induction container (100) characterized in that it comprises a wing (92) extending radially of the fixing piece (90) to maintain a gap (T) from the induction heating plate (70). The method of claim 1, The induction heating plate (70) has an induction container (100), characterized in that the edge region has a bent portion (71) which is bent in an upward and outward direction and incorporated into the non-ferrous container (60). The method according to any one of claims 1 to 3, Induction container 100, characterized in that it comprises a jagged shape reinforcement plate (75) which is spot welded to the center region of the induction heating plate (70). The method of claim 4, wherein Induction container 100, characterized in that it comprises a through hole (75a) intermittently drilled in the reinforcing plate (75). (S10) While the leg 82 is upright so that the head 81 of the non-ferrous rivet 80 abuts on the induction heating plate 70, the head 82 is received as the center hole 91 and the head ( Spot welding the fixing piece 90 to the induction heating plate 70 so that the fixing piece 90 can be fixed; (S20) placing the induction heating plate 70 on the female die G1, (S30) pressing the non-ferrous rivet 80 such that the induction heating plate 70 is in close contact with the female mold G1, and joining the male mold G2 with each other; (S40) Step of injecting the non-ferrous melt between the female mold (G1) and the male mold (G2) and then cooled to die-cast the non-ferrous container 60 coalesced with the induction heating plate 70 to complete the induction container 100 Method of producing an induction container comprising a. The method of claim 6, The step S10 is a method of manufacturing an induction vessel, characterized in that it comprises a step of spot welding the reinforcing plate 75 of the jagged shape in the central region of the induction heating plate (70). The method according to claim 6 or 7, In the step S20, the induction heating plate 70 has a support hole 72, the female die G1 has a support pin P, and the support hole 72 and the support pin P fit together. Method of producing an induction container characterized in that the matching.

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