JPH0322389A - Induction heating cooker - Google Patents

Abstract

PURPOSE:To prevent a cooking utensil mounted on a mounting plate from being slid or rotated by providing a recess larger than the outer diameter of an induction heating coil on the mounting plate at the portion corresponding to the induction heating coil. CONSTITUTION:A recess 2a larger than the outer diameter of an induction heating coil 3 is provided on a mounting plate 2 at the portion corresponding to the induction heating coil 3. A cooking utensil is mounted on the mounting plate 2 so as to be inserted into the recess 2a, thus the cooking utensil is not slid down from the mounting plate 2, the cooking utensil is rarely rotated on the mounting plate 2 even if its bottom is somewhat deformed to be inflated, and the cooking utensil is structured by the recess 2a and easily positioned directly above the induction heating coil 3.

Description

[Detailed description of the invention] (I) Industrial application field The present invention relates to an induction heating cooker.

(Example) Conventional Technology As shown in Japanese Patent Application Laid-Open No. 193091/1983, in conventional induction heating cookers, the plate A on which cooking utensils such as pots are placed has a flat plate shape. However, in Tonarizo,
When a pot with a flat bottom was placed on it, it became slippery, especially when there was moisture attached to the bottom of the pot. In addition, if the bottom of the pot is deformed so that it bulges out even slightly, the pot (23) may tilt as shown in Figure 9, or when the mounting plate (2) is , the pot itself may rotate around the swollen part.
It was difficult to use.

In addition, in order to make it easier to place cooking utensils directly above the induction heating coil (3), a pattern is drawn on the part of the placement plate that corresponds to the induction heating coil (3). It was difficult to place the cooking utensil directly above the induction heating coil using only the above method.

(c) Problems to be Solved by the Invention The present invention provides a method that prevents the cooking utensils placed on the mounting plate from slipping or rotating, and makes it easy to place the cooking utensils directly above the induction heating coil. To provide an induction heating cooker that is easy to use.

It consists of a circular induction heating coil that supplies a magnetic field, and a power supply circuit that supplies power for magnetic field generation to the induction heating coil. It is characterized by having a recess that is larger than the outer diameter.

(E) Function The cooking utensils are placed on the mounting plate so that they fit into the recesses, so they do not slip off the mounting plate and the bottom of the cooking utensils bulges out a little. Even if the cooking utensil is deformed, it is difficult to rotate on the support plate, and the cooking utensil is fixed by the recess and is placed directly above the induction heating coil.

(F) Embodiment FIGS. 1 to 4 show an induction heating cooker which is an embodiment of the present invention. This embodiment is for commercial use and is installed embedded in an installation stand.

(1) is the main body of the induction heating cooker, with a mounting plate (
2), and a circular induction heating coil (3) below if of the mounting plate (2). The mounting plate (2) has a thickness of about 6 mm, and in its center is a circularly shaped approximately spherical recess (2a) with a depth of about 3 mm, and the induction heating coil (3) is placed in the recess (2a). are placed almost concentrically. (4) is an inverter that is built into the main body (1) and serves as a power supply circuit that supplies power to the induction heating coil (3) to generate an alternating magnetic field; ), (6) is a connection cord that is also led out from one side (1a) of main body (1) and is connected to a control box (described later), and (7) is a connection cord that is led out from one side (1a) of main body (1). ) is a cord winding hook provided on the main body (1), (8) is a main body intake port formed on the bottom surface (1b) of the main body (1), and (9) is a hook provided on the other side surface (1c) of the main body (1).
) is the main body's haiku mouth.

(10) is a control box connected to the main body (1) by a connection cord (6), and an inverter (4) is connected here.
) is incorporated in the control circuit (11) that controls the oscillation of the oscillation. (12) is a temperature adjustment knob provided on the control box (10). This knob (12) has a flange (12a) around it, and the lever of the slide type volume (l3) (
13a) and the control box (10
) in the panel (14) attached to the front of the panel (14).
It faces outward from a) and is fixed to prevent it from coming off by its panel (14). Therefore, the knob (12) will not come off the lever (13a) inadvertently during use, and there is no need to use screws or the like for fixing the knob (12).

FIG. 2 shows the induction heating cooker installed on the installation stand. (15) is an installation stand installed along the wall (16) and incorporating the main body (1) and the control box (10) between the L face plate (17) and the partition plate (l8);
) is the front plate of the installation stand, (20) is the intake port formed on the front plate, and (21) is the exhaust port formed on the top plate (17). The power cord (5) is plugged into an outlet (not shown) provided on the wall (16). At this time, the power cord (5) and connection cord (6) are connected to the main body (1).
Since the hook (7 layers) provided on one side (1a) is wrapped around the hook, a cooling air path is formed below the main body (1) between the top plate (17) and the partition plate (18). (22)
This prevents the power cord (5) and connection cord (6) from coming loose, and especially prevents the flow of cooling air sucked in from the main body intake port (8) formed on the bottom surface (1b) of the main body (1). There is no hindrance.

Therefore, when the pot (23) as a moistening tool is placed on the mounting plate (2), the pot (23) is shaped into the mounting plate (2) as shown in Fig. 3(a). It fits into the recess (2a) and is placed in the center of the recess (2a).
(23) is placed on the mounting plate (2) so that it fits into the recess (2a), so even if there is moisture on the bottom of the pot (23), the pot (23) 23) slipped and the mounting plate (
2) It will not slip off. Also, Figure 3 (b
Even if the bottom of the pot (23) is deformed to bulge out a little as shown in ), the bulge fits into the recess (2a), so the pot (23) will not rotate on the mounting plate (2>). Furthermore, when the pot (23) is placed so that its position is horizontal, it is positioned by the concave portion (2a) of the spherical surface and placed directly above the induction heating coil (3). heating is performed efficiently.

Note that the recess (2a) does not necessarily have to be a spherical surface, and may be, for example, a paraboloid.

FIGS. 5 and 6 show an induction heating cooker which is another embodiment of the present invention.

(24) is the main body of the induction heating cooker, which is equipped with a loading plate (2) on the upper part, and a circular induction heating coil (not shown) directly under the loading plate (2). ) is equipped with a single source circuit and a control circuit. As in the previous embodiment, the mounting plate (2) has a substantially spherical recess (2a) in a circular shape. (25) is a switch group consisting of six key switches, which inputs a desired heating output level to the control circuit. As shown in Figure 6, each key switch from rlJ to "6" has a power output of 150 W for "1", 260 W for "2",
r3J is 430W, r. I J; 6'7 2 0W,
r5" is 1200W. "6" corresponds to 2000W, respectively. This is the strongest “6” from 2000W to 6
The output for each 0% is assigned to the next key switch.
Compared to the comparative example in which outputs are assigned to six key switches with approximately equal power differences, the range of relatively small outputs is subdivided, making it possible to appropriately adjust the delicate heat level during cooking. be able to.

As mentioned above, when the pot (23) is placed, the pot (23) is difficult to slip and rotate, and furthermore, the pot (23) can be easily positioned with respect to the induction heating coil (3). This is exactly the same as the example.

(G) Effects of the Invention According to the present invention, the cooking utensils are placed on the a-mounting base so as to fit into the recesses, so that the cooking utensils do not slip off the mounting plate. Even if the bottom is deformed so that it bulges out a little, it becomes difficult to rotate on the mounting plate. Moreover,
Since the cooking utensil is positioned by the recess and can be easily positioned directly above the induction heating coil, an easy-to-use induction heating cooker is obtained.

[Brief explanation of drawings]

Figure i41 to Figure 4 show an induction heating cooker that is an embodiment of the present invention, Figure 1 is an external perspective view, Figure 2 is a side sectional view showing the installed state, and Figure 3 is a sectional view of the main part. , FIG. 1 is a side sectional view showing the control box. 5 and 6 show other embodiments of the present invention, FIG. 5 is an external perspective view, and FIGS. 6(a) and 6(b) are diagrams showing the correspondence between the key switch and the heating output. be. Furthermore, FIG. 7 is a sectional view of a main part showing a conventional example. (2)... Placement plate, (2a)... Recess, (3)...
・Induction heating coil, (4)...Inverter, (23)
···pot. Figure 1

Claims (1)

[Claims] (1) A mounting plate on which cooking utensils are placed, a circular induction heating coil placed directly below the mounting plate and supplying an alternating magnetic field to the cooking utensils, and a power supply for forming a magnetic field to the induction heating coil. 1. An induction heating cooker comprising a power supply circuit for supplying a power source, wherein the mounting plate is provided with a recess larger than an outer diameter of the induction heating coil in a portion corresponding to the induction heating coil.