Moving-cover type electric pressure cooker

Abstract

The present invention relates to a movable lid type electric pressure cooker. It is characterized by utilizing elastic lid to control and limit interior pressure of cooker. Said movable lid type electric pressure cooker includes the following several portions: lid, elastic element, switch, sealing ring, inner pot, electric heater and outer pot. Besides, said invention also provides the connection mode of all the above-mentioned portions and the working principle of said electric pressure cooker.

Description

Technical field: [0001] The invention belongs to kitchen appliances, and is a patented technology of electric rice cooker pressurization that controls and limits the pressure in the pot through the elastic displacement of the pot cover. Background technique: [0002] Existing electric rice cooker pressure products (hereinafter referred to as electric pressure cooker) or patented technology, the pressure control scheme mostly adopts the elastic element arranged on a certain part of the outer pot, and the elastic element is used to produce pressure under the action of the inner pressure of the pot. The method of controlling the switch on and off by elastic displacement realizes the closed-loop automatic control of the pressure inside the pot, such as: Chinese invention patent ZL91100026.7 sets the elastic element at the bottom of the outer pot; ZL98100976.X sets the elastic element in the middle of the outer pot; In ZL97100738.1, the elastic element is arranged on the teeth of...

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Problems solved by technology

There are some problems in the implementation of the above-mentioned existing patented technology, mainly in the integrated design of the product. It is difficult to integrate the design of the elastic element and the design of the outer pot, even if the two are reluctantly integrated. The bottom of the pot is designed to be elastic. Although the elastic bottom of the pot can realize the function of the elastic element, because the elastic element and the outer pot have different requirements on the materials, although the area of ​​the material participating in the elastic deformation is only a small part of the bottom of the outer pot. In order to meet the requirements of the elastic element on the elastic strength (that is, the elastic force), it is necessary to use a stainless steel plate with better elasticity to make the entire outer pot. , so that the elastic displacement parameter of the elastic element is also limited

And if the elastic element is not integrated with other parts, it is independently arranged in a certain part of the outer pot, although the cost of the outer pot can be slightly reduced, but due to the mechanical connection between the elastic element and other related parts, it is necessary to carry The pressure in the pot increases the difficulty and complexity of the process during production and processing, making the yield unsatisfactory

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