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Combination Method of Heating Device of Pot/Kettle

a heating device and kettle technology, applied in the field of combination methods of heating devices of pots/kettles, can solve the problems of reducing the quality of products, easy separation of electric heating tubes from intermediate pots, etc., and achieves the effects of reducing fabrication costs, saving working time and labor, and high quality

Inactive Publication Date: 2016-12-08
KAO YAO TSUNG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is a method for fabricating an electric cooker with a high-speed stamping process and a preheat step. This method ensures a tight and close connection between the aluminum block and the intermediate pot or pot / kettle, which has a smooth surface without requiring secondary working. As a result, the working time, labor, and cost of fabrication are saved, and the productivity and quality of the cooker are improved.

Problems solved by technology

Thus, the electric heating tube is easily separated from the intermediate pot due to an accidental hit.
However, the aluminum block is easily squeezed outward from the bottom of the pan during the stamping process, thereby decreasing the quality of the product.

Method used

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  • Combination Method of Heating Device of Pot/Kettle
  • Combination Method of Heating Device of Pot/Kettle
  • Combination Method of Heating Device of Pot/Kettle

Examples

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Embodiment Construction

[0019]FIG. 1 is an exploded perspective view of an electric cooker manufactured by a method in accordance with the preferred embodiment of the present invention. An electric heating tube 11 is pre-cast into an aluminum block 1. There is provided with an intermediate pot 3 which is made of stainless material. It is difficult to combine two metallic elements made of different material. In the conventional method for combining two metallic elements made of different material, the combination of the two metallic elements is poor, and the productivity is low. In addition, the conventional method for combining two metallic elements needs more labors and has complicated working procedures, thereby increasing the cost of fabrication. Further, the quality of the product made by the conventional method is poor.

[0020]Referring to FIG. 2, a flow chart of combination of the intermediate pot 3 of the electric cooker and a heating device is shown. A die assembly 5 is provided. The die assembly 5 i...

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Abstract

A combination method of a heating device of a pot / kettle includes pre-casting an electric heating tube or a magnetically conducting metal into an aluminum block. Then, the aluminum plate, the aluminum block and the pot / kettle are heated to reach a preset temperature. Then, the aluminum plate, the aluminum block and the pot / kettle are stamped at a high speed so that the aluminum plate between the pot / kettle and the aluminum block is compressed instantaneously so as to combine the aluminum block with the bottom of the pot / kettle tightly and closely.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a combination method of a heating device of a pot / kettle.[0003]2. Description of the Related Art[0004]A conventional electric cooker comprises an intermediate pot, an inner pot placed in the intermediate pot, and a heating device mounted on the bottom of the intermediate pot. When the electric cooker is energized, the inner pot is heated to reach a high temperature so as to cook food, such as rice, meat and the like. The heating device includes an electric heating tube. The intermediate pot is made of aluminum which has a better heat conductive feature. The aluminum is soft so that the intermediate pot usually has a greater thickness to increase the weight and the cost.[0005]When the intermediate pot is made of stainless steel instead of aluminum, the electric heating tube is coated with an aluminum layer which is then combined with the intermediate pot made of stainless steel. The alumi...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B21D22/02
CPCB21D22/022A47J27/002B21D51/22A47J27/004
Inventor KAO, YAO-TSUNG
Owner KAO YAO TSUNG
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