JP3381467B2 - Induction heating cooker - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an induction heating cooker having a cooking pot.

[0002]

2. Description of the Related Art In recent years, since the induction heating cooker is limited in the material of the cooking pot that can be used, a pot suitable for the main body of the cooker has been provided as a set with the main body.

FIG. 11 shows a conventional induction heating cooker. That is, 101 is a top plate, 102 is an outer body of the main body that supports the top plate 101, 103 is an induction coil, 104 is a cooking pot, and 105 is a fitting portion provided at the lower end of the cooking pot 104.

In the induction heating cooker configured as described above, the cooking pan 104 is placed on the top plate 101 during cooking, and the fitting portion 105 holds the entire circumference of the top plate 101 to form the cooking pan. You can cook safely without slipping from the cooker body.

[0005]

In the above structure,
The height of the fitting portion 105 is about the thickness of the top plate 101 or slightly higher than that, and the fitting portion 105 does not completely hold the entire circumference of the top plate 101 and the cooking pot bottom is inclined, that is, the figure. Even if the gap A with the top plate is 0 mm on one side A of the pan bottom and the gap B with the top plate on the opposite side B of the pan bottom is about 4 to 6 mm as in 12, the average gap C between the pan bottom and the top plate is about 2 to 3 mm. It will be heated sufficiently by the induction coil 103. That is, even if the cooking pot 104 is tilted and is in an unstable state, the cooking pot 104 is heated, so that it is unsafe due to slipping or the like.

The present invention solves the above-mentioned problems of the prior art by eliminating the heating of the cooking pot until the cooking pot is placed in a predetermined position on the cooker main body, which is convenient and highly safe. It is intended to provide a heating cooker.

[0007]

[Means for Solving the Problems] A first means for solving the above problems is to provide a protective frame on the outer shell of a cooker body containing an induction coil, and to arrange it above a top plate supported by the outer shell. Support the cooking pot with the protection frame, and
To prevent induction heating when not always placed,
At least one place with a depth of 10 mm above the protective frame
With the above cutouts, the cutouts are provided on the cooking pot.
The object is to provide an induction heating cooker comprising a convex portion that engages with a portion .

A second means for solving the problems is to incorporate an induction coil.
A protective frame is provided on the outer shell of the cooker body, and is supported by the outer shell.
Supports the cooking pan placed above the tabletop held by the protective frame
However, the upper part of the protective frame is provided with notches at approximately the right and left target positions.
The handle part provided at the symmetrical position of the cooking pot is the cutout.
The cooking pan, the protective frame and the top plate are engaged with each other.
It is to provide an induction heating cooker that is round .

[0009]

The above-mentioned means for solving the problem works as follows.

If the cooking pot is not placed properly,
At the top of the protective frame, at least
Also has one notch with a depth of 10 mm or more,
The cooking pot should be provided with a convex portion that engages with the cutout portion.
Then, only when the convex part of the cooking pot fits into the notch of the protective frame, the cooking pot is placed in the predetermined position on the cooker body, and the gap between the top plate and the bottom of the cooking pot becomes small enough to be heated by induction heating. And the cooking pot is not placed properly
The cooking pot is not induction heated .

Also , cut on the upper and lower sides of the protective frame at substantially symmetrical positions.
It has a notch part, and the handle part provided at the symmetrical position of the cooking pot
Engages the notch, and the cooking pot, protective frame, and top plate are round
In the case of, the pan handle serves as an engaging part with the protective frame, so it is not necessary to provide an extra convex part on the cooking pan, and the top plate and the cooking pan bottom
The gap is small enough for induction heating
If the cooking pot is not placed correctly,
Is not induction heated, and the cooking pot can rotate freely
The constraint of can be removed .

[0012]

First Embodiment A first embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, 1 is a cooker body, 2 is a top plate made of crystallized glass, 3 is an outer shell for supporting the top plate 2,
Reference numeral 4 is a protective frame placed on the outer periphery of the upper top plate 2 of the outer shell 3, 5 is a cooking pot placed inside the protective frame 4 and placed on the top plate 2, and 6 is a handle of the cooking pot 5.

The induction heating cooker configured as described above will be described with reference to FIG. In FIG. 2, 7 is an induction coil, and shows a state in which the protective frame 4 and the cooking pot 5 are normally placed on the cooker main body 1. In this embodiment, the protective frame 4 is positioned and mounted on the outer shell 3 so as to be fitted to the outer periphery of the top plate 2, and is configured to surround the outer peripheral side surface up to a height of about 80% of the cooking pot 5. In such a configuration, when the cooking pot 5 is placed on the cooker main body 1, that is, the top plate 2, the cooking pot 5 is fitted inside the protective frame 4 and is naturally placed at a predetermined position. In this way, the cooking pot 5 is not placed in an unstable state such as being inclined, and a correct heating state can always be obtained.

(Second Embodiment) A second embodiment of the present invention will be described below with reference to the drawings.

In FIG. 3, 11 is a cooker body, 12 is a top plate made of crystallized glass, 13 is an outer shell for supporting the top plate 12, 14 is an outer periphery of the top plate 12, and is fitted on the outer shell 13. A protective frame to be placed, 15 is a cutout portion provided on the upper part of the protective frame 14 and having a depth A of about 10 mm or more, 16 is a cooking pot placed inside the protective frame 14 and placed on the top plate 12, 17 is a cooking pot 16
A convex portion provided on the outer peripheral surface of the protective frame 14 at a position facing the cutout portion 15 and a handle 18 of the cooking pot 16.

The induction heating cooker configured as described above will be described with reference to FIGS. 4 and 5. 1 in FIG.
Reference numeral 9 denotes an induction coil, which shows a state in which the protective frame 14 and the cooking pot 16 are normally placed on the cooker main body 11. That is, the convex portion 17 of the cooking pot 16 is fitted into the cutout portion 15 of the protective frame 14, and the gap B between the bottom surface of the cooking pot 16 and the top plate 12 is 0 to 3 m.
The gap is about m, which is a sufficiently small gap for induction heating by the induction coil 19. FIG. 5 shows a case where the surface of the protective frame 14 on which the cutout portion 15 is provided does not match the surface of the cooking pot 16 on which the convex portion 17 is provided, and the surface is not normally placed. In this case, since the depth of the cutout portion 15 of the protective frame 14 is approximately 10 mm or more, the gap C between the bottom surface of the cooking pot 16 and the top plate 12 is in a large floating state, and the magnetic field generated by the induction coil 19 cannot fully reach the cooking pot. 16 will not be induction heated. In this way, the cooking pot 16 is not heated until the cooking pot 16 is placed at a predetermined position on the cooker main body 11, and an induction heating cooker with high safety can be provided.

Although the convex portion 17 is integrated with the cooking pot 16 in this embodiment, the present invention is not limited to this, and a separate member may be attached to the cooking pot. Further, the convex portion 17 and the cutout portion 15 are provided at one place, but the present invention is not limited to this, and there may be two or more places.

(Embodiment 3) A third embodiment of the present invention will be described below with reference to the drawings.

In FIG. 6, 21 is a cooker main body, 22 is a top plate, 23 is an outer shell, 24 is a protective frame fitted on the outer circumference of the top plate 22 and placed on the outer shell 23, and 25a and 25b are depth D. Approximately 1
The notch has a size of 0 mm or more, 26 is a cooking pot, and 27 is a handle. The above is the same as the configuration of FIG. The difference from the configuration of FIG. 3 is that the notch has two grips 27a.2.
The point is that the width E is wider than the width F of the handle by providing 25a and 25b at positions facing 7b.

FIG. 7 shows a state in which the protective frame 24 is placed on the main body 21 and the cooking pot 26 is placed with the positions of the handles 27a and 27b aligned with the notches 25a and 25b. The gap G between the bottom of the cooking pot 26 and the top plate 22 becomes sufficiently small so that the induction coil 29
Is induction heated.

As described above, according to this embodiment, the protective frame 24
Since the notches 25a and 25b and the grips 27a and 27b are fitted and heated only for the first time, it is necessary to provide the cooking pot with an extra convex portion in addition to the grips 27a and 27b while enhancing the safety of the induction cooking device. Because there is no, it can improve usability.

(Embodiment 4) A fourth embodiment of the present invention will be described below with reference to the drawings.

In FIG. 8, 51 is a cooker body, 52 is a top plate, 53 is an outer shell, 54 is a protective frame placed on the outer shell 53,
55a and 55b are notches having a depth M of about 10 mm or more, 56 is a cooking pot, and 57a and 57b are handles, and the above is the same as the configuration of FIG. The difference from the configuration of FIG. 6 is that the top plate 52 and the protective frame 54 are formed into a circular shape.

With the configuration of this embodiment, the protective frame 54
Since the notches 55a and 55b and the handles 57a and 57b are heated only after they are fitted together, the cooking pot can be heated no matter where the orientation of the cooker main body 51 is, while improving the safety of the induction heating cooker. Since 56 and the protective frame 54 are round,
The cooking pot 56 can be freely rotated, and there is no restriction on the orientation, so that a convenient cooker is provided.

(Fifth Embodiment) A fifth embodiment of the present invention will be described below with reference to the drawings.

In FIG. 9, 31 is a cooker body, 32 is a top plate, 33 is an outer shell, 34 is a protective frame placed on the outer shell 33,
Reference numerals 35a and 35b are notches having a depth H of about 10 mm or more, 36 is a cooking pot, and 37a and 37b are handles, and the above is the same as the configuration of FIG. The difference from the configuration of FIG. 7 is that the outer shell 33 has a step 38 having a height J between the top plate 32 and the outer peripheral surface, and the protective frame 34 is fitted in the outer step 38.

With the construction of this embodiment, the protective frame 34
Since the notches 35a and 35b and the handles 37a and 37b are fitted and heated only for the first time, the protection frame 34 is made of crystallized glass or the like which is a hard material while enhancing the safety of the induction heating cooker. Since it does not slide directly on the end surface of the top plate 32, scratches are reduced, and further, the protective frame 34 and the cooking pot 36
Since a gap between the protective frame 34 and the protective frame 34 is secured, the temperature rise of the protective frame 34 is reduced, and the types of materials that can be used are widened to improve safety.

(Embodiment 6) A sixth embodiment of the present invention will be described below with reference to the drawings.

In FIG. 10, reference numeral 41 is a cooker main body and 42
Is a top plate, 43 is an outer shell, 44 is a protective frame placed on the outer shell 43, 45a and 45b are notches having a depth K of about 10 mm or more, 46 is a cooking pot, and 47a and 47b are handles. Is similar to that of FIG. 9 is different from the configuration of FIG. 9 in that the outer shell 43 is provided with a recess 48 having a depth L between the top plate 42 and the outer peripheral surface, and the protective frame 44 is the recess 4 of the outer shell 43.
8 is the point fitted.

With the construction of this embodiment, the protective frame 44
Since the notches 45a and 45b and the handles 47a and 47b are fitted and heated only for the first time, the spillage of the cooking pot 46 at the time of cooking is enhanced by the recess 48 of the outer shell 43 while enhancing the safety of the induction heating cooker. The catcher cooker is prevented from flowing down and the cooker is easy to use.

It should be noted that the embodiment is not limited to the above, and in addition to the above, combinations of these, such as the presence or absence of a step or a recess provided in the outer contour of the main body, the shape of the notch and the presence or absence thereof, can be easily considered. .

[0033]

As described above, according to the present invention, cooking
Induction heating will not occur if the pot is not placed properly
As mentioned above, there is at least one depth 1 above the protection frame.
Equipped with a cutout of 0 mm or more, the cooking pan has the cutout.
By providing the convex portion that engages with the cutout portion, heating is performed only when the cooking pot is correctly placed at a predetermined position of the cooker body, and the induction heating cooker is highly safe.

In addition, the upper and lower portions of the protective frame are cut into substantially symmetrical positions.
A handle part that has a notch part and is provided at the symmetrical position of the cooking pot
Engages with the notch, and the cooking pot, protective frame, and top plate are round
Because it is Jo, Ri pan handle is good usability is no need to provide an extra projections on cooking pot becomes the engaging portion of the protective frame,
Also, the cooking pan can be rotated freely and there is no restriction on the orientation.
You can

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an induction heating cooker according to a first embodiment of the present invention.

FIG. 2 is a sectional view of the induction heating cooker according to the first embodiment.

FIG. 3 is an exploded perspective view of an induction heating cooker according to a second embodiment of the present invention.

FIG. 4 is a sectional view of an induction heating cooker according to a second embodiment.

FIG. 5 is a sectional view for explaining the operation of the induction heating cooker according to the second embodiment.

FIG. 6 is an exploded perspective view of an induction heating cooker according to a third embodiment of the present invention.

FIG. 7 is a sectional view of an induction heating cooker according to a third embodiment.

FIG. 8 is a perspective exploded view of an induction heating cooker according to a fourth embodiment of the present invention.

FIG. 9 is a sectional view of an induction heating cooker according to a fifth embodiment of the present invention.

FIG. 10 is a sectional view of an induction heating cooker according to a sixth embodiment of the present invention.

FIG. 11 is a sectional view of a conventional induction heating cooker.

FIG. 12 is a sectional view for explaining the operation of the conventional induction heating cooker.

[Explanation of symbols]

2, 12, 22, 32, 42, 52 Top plate 3, 13, 23, 33, 43, 53 Outer shell 4, 14, 24, 34, 44, 54 Protective frame 5, 16, 26, 36, 46, 56 Cooking Pans 15, 25a ・ 25b, 35a ・ 35b, 45a ・ 45
b, 55a / 55b cutouts 17, 27a / 27b, 37a / 37b, 47a / 47
b, 57a / 57b convex portion (handle) 38 step 48 concave portion

Continuation of the front page (56) References JP-A-61-294787 (JP, A) JP-A-8-190983 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H05B 6 / 12

Claims (2)

(57) [Claims] 1. A protective frame is provided on an outer shell of a cooker main body having an induction coil built therein, and a cooking pan placed above a top plate supported by the outer shell is supported by the protective frame so that the cooking pan is normal.
To prevent induction heating when not placed on the
At least one place on the upper part of the protective frame has a depth of 10 mm or less.
The upper cutout is provided, and the cutout is provided on the cooking pot.
An induction heating cooker comprising a convex portion that engages with the cooker. 2. An outer shell of a cooker body containing an induction coil.
A protective frame is installed on the top and is placed above the top plate supported by the outer shell.
The cooking pot to be placed is supported by the protective frame, and the upper part of the protective frame is
Left and right symmetrically equipped with a notch in the symmetrical position of the cooking pot
The handle provided at the position engages with the notch, and
An induction heating cooker in which the ladle, the protection frame, and the top plate are round .