JPH0427112Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a pot for an electromagnetic cooker, that is, a pot that uses an electromagnetic cooker as a heat source.

[Conventional technology]

In recent years, with the advent of electromagnetic cookers, it has become possible to generate heat by placing a metal pot on the induction cooktop, and the pot itself is cordless, making it convenient to carry. .

[Problem that the invention attempts to solve]

The heating principle of the pot is that the magnetic force generated from the magnetic force generating coil in the electromagnetic cooker generates an eddy current inside the metal pot bottom, and this eddy current generates heat due to the electrical resistance of the metal, which causes the pot to heat up. This heats the pot itself, so the pot itself becomes hot.

However, although the feature of an induction cooker is that the plate of the cooker does not generate heat directly and is safe to touch, the pot itself may generate heat and reach a high temperature as described above. , the long-awaited features of the electromagnetic cooker will be lost. Regarding this point, as shown in Japanese Utility Model Publication No. 36-263, the pot has a double-walled structure, and a magnetic force generating coil is placed around the outer circumference of the inner pot, and the magnetic force generated from the coil is used to create a secondary wall in the inner pot. A pot that generates heat by passing an induced current has been proposed, but since this pot has a built-in magnetic force generating coil with a structure similar to that of an electromagnetic cooker, it is not possible to use a plate-shaped pot that is sold separately on the market. It is not used by placing it on an electromagnetic cooker, and is less versatile. Furthermore, it is inconvenient to carry as it requires connecting an electric cord from a power source to the built-in magnetic force generating coil. Further, there are other problems such as the complicated structure and the inability to wash the entire pot.

[Means for solving problems]

The present invention provides a pot for an electromagnetic cooker that solves the above-mentioned problems. : A non-metallic outer case with a substantially flat outer bottom is equipped with an electromotive current generating coil that generates a current due to the magnetic field generated by the electromagnetic cooker on the inner bottom of the non-metallic outer case, and a metal inner part of the outer case is installed. The inner container is equipped with a heater that generates heat by the electric current from the coil; in the upper part of the pot, the outer flange of the inner container is overlapped with the inner flange of the outer case via a packing, At the bottom, a boss is provided at the bottom of the outer case that protrudes upward beyond the coil, and a screw bolt inserted into the boss from below is screwed into a female screw attached to the inner container. The inner container is fixed to the bottom of the outer case in a drawn state through bolts;
At the point.

〔Example〕

An embodiment of the present invention will be described in detail below based on the drawings.

In the illustrated example, the pot includes a pot body 1 and a lid body 2.

The pot body 1 consists of a non-metallic outer case 3 and a metal inner container 4 housed in the outer case.

The outer case 3 is made of synthetic resin and has a cylindrical shape with a circumferential wall 3b standing up around a bottom portion 3a. A plurality of claw pieces 5 divided in the circumferential direction are erected on the central inner surface of the bottom 3a, and a plurality of bosses 6 are erected at intervals in the circumferential direction near the circumferential side of the bottom 3a. . The claw piece 5 is provided inside the bottom part 3a.
A flat spiral electromotive current generating coil 7 is provided surrounding the outer periphery of the coil. An intermediate sole plate 8 is disposed above the coil 7, and the inner circumferential portion 7a of the intermediate sole plate 8 is fitted onto the claw piece 5, whereby the electromotive current generating coil 7 is connected between the bottom portion 3a and the intermediate sole plate 8. It is held in between.

An inner flange 9 is provided around the inner peripheral edge of the opening of the peripheral side wall 3b of the outer case 3. In the case of the illustrated example, a shoulder member 1 made of synthetic resin is formed separately from the outer case 3.
0 is fixed to the circumferential wall 3b, and the inner flange 9 is integrally provided on the inner periphery of the shoulder member 10. That is, as shown in the second figure, the shoulder member 10 has the inner flange 9 extending on the inner circumferential side of a rail-shaped portion 12 having a groove 11 opening downward, and the shoulder member 10 is formed by extending the inner flange 9 on the inner circumferential side of the rail-shaped portion 12 having a groove 11 opening downward. A thin opening edge 3c is fitted into the groove 11 together with a sealing O-ring 13. The shoulder member 10 and the opening edge 3c are preferably fixed together by using an adhesive within the groove, but they may be screwed together by forming threads therebetween. A packing 14 is polymerized on the inner flange 9, and the inner flange 9 and the packing 14 are bonded together.
It is preferable that the two are positioned with respect to each other by a concavo-convex strip 15 as shown in the second figure. In addition, outer case 3
A handle 16 is formed on the circumferential wall 3b of the handle 16, which is located in the diametrical direction and projects outward.

The inner container 4 is made of stainless steel and has a cylindrical shape with a circumferential wall 4b standing up around a bottom portion 4a, and has a smaller diameter and a shallower bottom than the outer case 3. A plurality of female screw members 17 are provided at intervals in the circumferential direction on the bottom surface near the circumferential side of the bottom portion 4a.
is fixed. This female threaded material 17 is arranged corresponding to the boss 6 at the bottom of the outer case, and is made by bending a steel plate material and fixed to the bottom part 4a by welding or the like, and has a female threaded hole formed in the flat plate part. There is. on the other hand,
An outer flange 18 is provided around the opening edge of the inner container 4 by bending the opening edge toward the outer circumference. A band heater 19 is installed on the outer periphery near the bottom of the peripheral side wall 4b.
Although not shown, the band heater 19 is connected to the electromotive current generating coil 7.
As will be described later, the heater 19 generates heat due to the current from the coil 7, thereby forming heating means for the inner container 4.

Thus, with the inner container 4 housed inside the outer case 3, the outer flange 18 is superimposed on the packing 14 of the inner flange 9 of the shoulder member 10. With the female screw member 17 positioned corresponding to the boss 6, the tightening bolt 20 inserted into the boss 6 is inserted into the female screw member 17.
The inner container 4 is fixed in a drawn state to the outer case bottom 3a via the bolt 20. As a result, the outer flange 1 of the inner container 4
8 is crimped onto the packing 14. Note that a rubber stopper 21 is inserted into the lower opening of the boss 6.

The lid body 2 is made of tempered glass in the illustrated example, and has a handle 22 formed at the center top and steam vent holes 23 at appropriate locations. Then,
In the closed state, the periphery of the lid body 2 is connected to the inner container 4.
is placed on the outer flange 18 of. At this time, it is preferable that the top surface of the periphery of the lid 2 and the top surface of the shoulder member 12 are substantially flush with each other.

In the illustrated example, a heat insulating material 24 is inserted into the double wall space between the circumferential wall 3b of the outer case 3 and the circumferential wall 4b of the inner container 4.

[Effect of the embodiment]

In order to cook using the pot 1 of the above embodiment, the pot 1 is placed on an electromagnetic cooker with appropriate food materials put into the inner container 4. An induction cooktop has a built-in coil made of copper wire wound around an iron piece, and the coil generates magnetic force using an electric current (therefore, if you place a conventional metal pot on the induction cooktop, , an eddy current is generated in the bottom of the pot, and this eddy current creates electrical resistance in the bottom of the pot, generating heat). In this embodiment, due to this magnetic force, the electromotive current generating coil 7 generates an electromotive current without generating heat, and this electromotive current is applied to the heater 19, causing the heater 19 to generate heat. This heats the inner container 4 and performs boiling. Although the inner container itself becomes hot,
The bottom 4a and peripheral wall 4b of the inner container 4 are covered and protected by the bottom 3a and peripheral wall 3b of the outer case 3 made of synthetic resin. be.

Although not shown in the above embodiment,
It is preferable to equip a permanent magnet inside the center of the outer case bottom 3a. In other words, the electromagnetic cookers currently available on the market are configured so that if an inappropriate object other than a metal object is placed on the cooker, an alarm device that notifies the user of an abnormality is activated and issues an alarm signal such as a buzzer. In the above embodiment in which the outer case 3 of the pot 1 is made of synthetic resin, the alarm signal is emitted, but if the permanent magnet is provided, the line of magnetic force of the magnet will cause the alarm signal to be emitted. can be stopped so that it does not operate.

Furthermore, in the pot 1 of the above embodiment, when assembling the outer case 3 and the inner container 4 in the manufacturing process,
Screw the tightening bolt 20 into the female thread 17, fix the inner container 4 in a pulled state against the bottom 3a of the outer case, and attach the outer flange 18 of the inner container 4 to the inner flange 9 of the outer case 3 with the gasket 14. Since the structure is such that the inner and outer flanges 9 and 18 are crimped together through a simple assembly operation, the inner and outer flanges 9 and 18 can be joined in a watertight manner. Moreover, since the outer flange 18 is integrated and continuous with the inner container 4, even if the boiled food in the pot 1 adheres to the outer flange 18 at the opening edge, it can be easily wiped off and maintained hygienically. can do.

[Effect of idea]

As a result of the above-described configuration, the present invention has the following effects.

Since it can generate heat and cook by placing it on an electromagnetic cooker that is conventionally available on the market, it is versatile and convenient to carry because it is cordless.

Moreover, when used in an electromagnetic cooker, only the inner container inside the outer case is heated and boils without the bottom and surrounding walls of the outer case being heated to high temperatures. It is safe and does not cause burns to the user's fingers.

For example, if a pot has a double-walled structure consisting of a metal inner wall and a non-metal outer wall, with an inner and outer hollow wall, and the inner wall, which gets hot, is protected by the outer wall, the metal inner wall In contrast, in the present invention, the magnetic field of an electromagnetic cooker is far away from the magnetic force generating coil, making it difficult to generate enough current to generate heat. The magnetic field generates electricity in the electromotive current generating coil installed inside the bottom of the outer case, and the current is passed through the heater to heat the inner container, so the inner container must be sufficiently heated. However, it is unique in that the bottom of the outer case does not retain heat.

Since it is cordless, it does not require electrical contact with the outside. Based on this configuration, a packing is inserted between the outer flange of the inner container and the inner flange of the outer case, and a screw Since the inner container is fixed to the bottom of the outer case using bolts and female threads, (a)
When assembling it, it is sufficient to insert the inner container into the outer case with the electromotive current generating coil installed inside the bottom of the outer case, and to secure it with the bolts and screws mentioned above. (b) Since the seal can easily ensure a watertight state, the entire pot can be washed.

In particular, regarding the assembly and fixing structure of the inner container and outer case, a boss is provided at the bottom of the outer case that protrudes upward beyond the electromotive current generating coil, and a threaded bolt inserted into the boss from below is attached to the inner container. Since the structure is such that the boss is screwed onto a female screw member, a storage space for the electromotive current generating coil can be formed between the bottom of the inner container and the bottom of the outer case using the boss as a spacer. As a result, by equipping the electromotive current generating coil inside the bottom of the outer case, the coil can be brought as close as possible to the electromagnetic cooker during use, while the inner container is drawn and fixed by the bolts. ,
This is excellent in that it can reliably prevent the electromotive current generating coil from accidentally touching the bottom of the inner container.

Since the outer case can be formed freely using non-metallic material, there are no restrictions on the design, and the design effect can be improved.

[Brief explanation of the drawing]

FIG. 1 is a central longitudinal sectional view showing one embodiment of the present invention, and FIG. 2 is an enlarged sectional view showing a joint between the inner and outer flanges. 1...Pot, 2...Lid, 3...Outer case, 3a
...Bottom, 3b...Surrounding wall, 4...Inner container, 4a
... Bottom, 4b ... Circumferential wall, 5 ... Claw piece, 6 ...
Boss, 7... Coil for generating electromotive current, 8... Middle bottom plate, 9... Inner flange, 10... Shoulder member, 14...
...Packskin, 17...Female thread material, 18...Outer flange, 19...Band heater, 20...Tightening bolt.

Claims (1)

[Claims for Utility Model Registration] A pot that is used by being placed on an electromagnetic cooker with a flat mounting surface: The above-mentioned electromagnetic cooking device is placed on the inside of the bottom of a non-metallic outer case 3 with a substantially flat outside of the bottom. A metal inner container 4 is equipped with an electromotive current generating coil 7 that generates a current by a magnetic field generated from the container, and is housed inside the outer case 3.
is equipped with a heater 19 that generates heat by the current from the coil 7; In the upper part of the pot, the outer flange 18 of the inner container 4 is attached to the inner flange 9 of the outer case 3 by a gasket 14.
At the bottom of the pot, a boss 6 is provided at the bottom of the outer case 3 that protrudes upward beyond the coil 7, and a screw bolt 20 is inserted into the boss 6 from below. A pot for an electromagnetic cooker, which is screwed onto a female screw member 17 attached to the container 4, and the inner container is pulled and fixed to the bottom of the outer case via the bolt 20.