JPS6041866Y2 - Heat plate for electric cooker - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a heating plate for an electric cooker that prevents swelling of the fluororesin that occurs during processing of the fluororesin.

Conventionally, electric cookers have been treated with fluororesin to prevent cooking surfaces from burning.

The hot plate used in this electric cooker is manufactured by die-casting from aluminum material, and a heater, such as a sheathed heater, is provided on this hot plate by brazing or die-casting, and the surface of the hot plate, which is the cooking surface, is
Fluorine resin processing is applied, but the fluororesin processing is approx.
Since the surface of the hot plate is fired at a high temperature of 00°C, bubbles inside the hot plate manufactured by die-casting expand during firing, causing swelling.

Due to this swelling of the fluororesin, electric cooking appliances are often defective, which not only results in resource loss but also makes it difficult to produce high-quality products.

Guicast products also have the disadvantage of poor corrosion resistance.

FIG. 1 is a cross-sectional perspective view of the hot plate used in the conventional electric cooking device described above, in which a swollen portion 3 occurs in the fluororesin coating 2 applied to the cooking surface of the hot plate 1.

If this swollen portion 3 is large, the fluororesin coating 2 is likely to peel off due to external force, and the surface of the hot plate 1 will be exposed. If this is done, the object to be heated will become scorched in the exposed portion of the hot plate 1, and the peeling of the fluororesin coating 2 will further increase.

The die-cast hot plate 1 has poor corrosion resistance and may cause corrosion. Therefore, the electric cooker hot plate 1 having the bulged portion 3 is a defective product, and may have to be treated as a defective product along with the heater 4. Otherwise, there will be expensive losses.

The present invention is a heating plate for an electric cooker devised to eliminate the above-mentioned drawbacks, and FIG. 2 is a side sectional view showing an embodiment of the present invention.

From FIG. 2, the heating plate for an electric cooker of the present invention has a cooking plate 6 formed by press-forming a metal plate such as an aluminum plate or a stainless steel plate, and a roughened surface on the back side of the cooking plate 6 for cooking. The back surface of the plate 6 is roughly finished, and a metal material such as aluminum or zinc is cast onto the back surface of the cooking board 6. A heater 8 is crimped onto the casting board 7. The heater 8 may be fixed to the casting plate 7, or the heater 8 may be cast and provided on the casting plate 7 at the time of casting.

Further, the cooking plate 6 is processed with the fluororesin coating 5 in advance after the cooking plate 6 is formed, or the fluororesin coating 5 is applied after the casting plate 7 is attached to the cooking plate 6. Good too.

As described above, according to the present invention, the back surface of the cooking plate 6 is roughened, which improves the adhesion of metal materials during casting, and fluororesin processing is applied to metal plates such as aluminum plates and stainless steel plates. As a result, the fluororesin coating 5 does not swell, and since the cooking plate 6 is not made by gui-casting, it has good corrosion resistance and is lighter in weight than conventional electric cookers.

[Brief explanation of the drawing]

FIG. 1 is a side cross-sectional perspective view of a hot plate used in a conventional electric cooker. 1...Hot plate, 2...Fluororesin coating,
3... Swollen part. FIG. 2 is a side sectional view of a hot plate for an electric cooker showing an embodiment of the present invention. 5... Fluorine resin coating, 6... Cooking board, 7... Casting board.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In an electric cooker whose cooking surface is treated with fluororesin, a cooking plate 6 formed by pressing a metal plate such as an aluminum plate or a stainless steel plate, and the cooking plate The cooking plate includes a casting plate 7 whose back surface is roughened and a metal material such as aluminum or zinc material is attached by casting to the back side of the cooking plate 6, and a heater 8 is mounted on the casting plate 7. A heating plate for an electric cooker whose surface, which becomes the cooking surface, is treated with fluororesin. 2. The heating plate for an electric cooker according to claim 1 of the utility model registration claim, in which the heater 8 is simultaneously cast and provided on the casting plate 7 when a metal material is attached to the back surface of the cooking plate 6. 3 A die-cast plate is equipped with a heater by crimping.
A heating plate for an electric cooker according to claim 1 of the utility model registration claim.