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Pressure control structure of pressure cooking appliance

A technology for cooking utensils and cooking containers, which is applied to pressure cookers, cooking utensils, household utensils, etc., can solve the problems of high cost, difficult processing, and inaccurate pressure control accuracy, and achieve low cost, high reliability and feasibility Effect

Active Publication Date: 2009-11-04
ZHEJIANG SHAOXING SUPOR DOMESTIC ELECTRICAL APPLIANCE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the defects of high processing difficulty, high cost and inaccurate pressure control precision in the prior art, the present invention provides a pressure control structure of pressure cooking utensils with simple structure, easy processing, low cost, high control precision and stable pressure control

Method used

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  • Pressure control structure of pressure cooking appliance
  • Pressure control structure of pressure cooking appliance
  • Pressure control structure of pressure cooking appliance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0031] Embodiment: Taking the control device as a pressure switch as an example, the touch range of the pressure switch is about 0.7-1.5mm, the sealing gap between the inner pot and the lid sealing ring is about 3mm, and 6 elastic reeds are welded and connected at the outer pot button teeth , assuming that the diameter of the inner pot is 220mm, the pressure inside the pot should be controlled at about 50KPa under the condition of considering the thermal upshoot of the electric heating device. When the pressure inside the pot reaches 50KPa, the elastic deformation of each elastic reed should be 1mm About, in order to meet the safety requirements, when the pressure in the pot reaches a maximum of 350KPa, the elastic deformation of each elastic reed should be more than 3mm to meet the pressure relief requirements, and the strength of the outer pot buckle teeth should meet 350KPa (maximum pressure relief pressure ) below can not be deformed and tripped, because the buckle of the p...

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Abstract

The invention provides a pressure control structure of a pressure cooking appliance, belonging to the technical field of pressure cooking appliances. The structure comprises a pot cover, an external pot, an internal pot, a detecting and collecting part for detecting the displacement amount, and an electric control device for controlling the electric heater according to the information of the detecting and collecting part, the structure is characterized in that the pot cover is buckled to the internal pot through pot teeth; an elastic member is arranged between the pot tooth surface of the opening part of the external pot and the combination surface of the opening part of the internal pot; a displacement linking device is arranged below the elastic member or the internal pot; the detecting and collecting part is located on the lateral part or the bottom of the external pot; the displacement information of the elastic member or the pot body is transmitted to the electric control device by the detecting and collecting part. For the prior art, requirement on the material of the elastic pot teeth is high and cost is increased; in the invention, the pot opening surface is equipped with the elastic member so as to control the pressure correctly, and the strength of the buckling part of the original pot tooth is not change; besides, by using the elastic member as the support part of the internal pot, the bottom of the external pot does not need to bear pressure, the manufacturing cost is reduced, and the processing difficulty is obviously reduced.

Description

technical field [0001] The invention belongs to the technical field of pressure cooking appliances, in particular, a structure for controlling an electric heater driven by steam power to realize pressure control in a pot. Background technique [0002] The pressure control methods of pressure cooking appliances on the market are mainly the following two [0003] One is temperature measurement and pressure control, which mainly installs a temperature measurement device such as a thermistor on the cover or bottom, and senses the temperature value in the pot through the temperature measurement device, and then passes the corresponding relationship between temperature and pressure (between 100 degrees and 120 degrees Celsius). The corresponding relationship between degrees is about 1 degree / 5kPa) for fuzzy control of pressure, but because the temperature measurement is greatly affected by external environmental factors, such as material, external ambient temperature, manufacturin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47J27/08A47J27/086
Inventor 蔡才德高晖
Owner ZHEJIANG SHAOXING SUPOR DOMESTIC ELECTRICAL APPLIANCE CO LTD
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