JPS63136488A - Hot plate for induction heating cooker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heating plate for generating heat in a cooking container used in an induction heating cooker.

BACKGROUND OF THE INVENTION The cooking containers used in conventional induction heating cookers are metal pots and frying pans. This is because eddy current is generated in the container itself due to electromagnetic induction, and the container itself is used as a heating element. This means that even iron knives, knives, and forks generate heat. However, actual products are equipped with a safety device called a small object detection device, and are devised so that they do not generate heat when loaded with small objects such as kitchen knives, knives, and forks. In other words, the input of the small object load is 300 to 400 W, depending on the number of objects, but the small object detection level is 5.
Set it to about oot, detect the load current and get 600W.
Efforts have been made to cut the following input loads using the electrical circuit.

Problems to be Solved by the Invention However, there is a problem in that while small loads such as kitchen knives, knives, and forks do not generate heat, small-diameter pots whose load input is below the small object detection level also do not generate heat. In other words, there is a proportional relationship between the input power of the pot and the pot area (diameter).
Depending on the pot material, the pot diameter equivalent to 600W is 8 to 12.
011, and there is a restriction that pots with a diameter of less than 121:'llf cannot be used, which is very inconvenient for the user.

The present invention takes into account the above-mentioned conventional problems and provides an auxiliary device that can heat even small pots of 127 m or less.

Means for solving the problems and technical means of the present invention for solving the above problems are to provide a through hole in a part of the plate made of magnetic material, and to allow a separate cooking container to be attached and detached to the through hole. It was designed to be provided.

action The effect of this technical means is as follows.

In other words, a through hole is provided in a part of the plate made of magnetic material, and a cooking container is placed in the through hole to heat it, so the area of the object to be heated that corresponds to the heating coil increases, and it is similar to the plate made of magnetic material. The cooking container can also be heated.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings. In FIGS. 1 and 2, reference numeral 1 denotes the main body of the auxiliary device, which is made of a magnetic material such as iron 9, whose edges are bent downward over the entire circumference, and constitutes an induction heating cooker 2. When placed on a top plate 3 made of a non-magnetic material, a certain gap H is formed between the heating coil 4 and the flat surface of the auxiliary tool 1, and a certain distance between the heating coil 4 and the flat surface of the auxiliary tool 1. A through hole 6 with a diameter of about 12 as is provided in the plane part of the auxiliary tool main body 1, into which a separate cooking container 6 made of a magnetic material is inserted. The material, plate thickness, and clearance H of the auxiliary tool 1 are determined so that the sum of the input power of the separate cooking container 6 and the input power of the auxiliary tool main body 1 is at least equal to or higher than the small object detection level (500゛W). ing.

Next, the operation of the configuration of this embodiment will be explained.

First, when the induction heating cooker 2 is turned on, a current flows through the heating coil 4 and generates magnetic lines of force.

The magnetic lines of force pass through the top plate 3 and reach the plate 1 made of magnetic material, and the plate 1 is heated. Separate cooking container 6 at the same time
The magnetic lines of force also reach the bottom of the cooking container 6, generating eddy currents, thereby heating the separate cooking container 6 as well.

As a result, it is now possible to heat even small-diameter cooking containers that could not be heated conventionally.

Effects of the Invention As is clear from the above embodiments, according to the present invention, by inserting a separate cooking container into the through hole formed in the plate made of magnetic material, the object to be heated is heated by the heating coil. This has the effect of increasing the area and making it possible to heat even small-diameter pots that could not be heated conventionally.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an auxiliary tool showing one embodiment of the present invention;
The figure is a longitudinal cross-sectional view of an auxiliary tool and a separate cooking container placed on an induction heating cooker according to an embodiment of the present invention. 1...Plate, 4...Heating coil,
6...Through hole, 6...Separate cooking container. Name of agent: Patent attorney Toshio Nakao and 1 other person/-
BL-) 5-Page 1 Figure 1 6-Ari U δ Figure 2

Claims (1)

[Claims] A heating plate for an induction heating cooker, which has a through hole formed in a part of a plate made of a magnetic material that is heated by a heating coil of the induction cooker, and a separate cooking container is detachably provided in the through hole.