Pressure detection device for electric pressure cooker
A detection device, electric pressure cooker technology, applied in pressure cooker, measurement device, fluid pressure measurement by changing ohmic resistance, etc., can solve the problems of poor detection accuracy, unfavorable mass production, etc. Simple and easy effect
Active Publication Date: 2011-08-03
ZHEJIANG SUPOR ELECTRICAL APPLIANCES MFG CO LTD
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Problems solved by technology
[0004] In order to overcome the shortcomings of the existing electric pressure cooker pressure detection devices that need to be debugged one by one during production, which is not conducive to batch production and poor detection accuracy, the present invention provides an electric pressure cooker pressure detection device that is simple to debug, suitable for batch production, and has high detection accuracy
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[0016] The present invention will be further described below in conjunction with the drawings.
[0017] 1 and figure 2 , An electric pressure cooker pressure detection device, comprising a resistance strain gauge 1, a signal amplifying circuit and a pressure control system 2 for realizing pressure detection and control. The resistance strain gauge 1 includes a resistance strain gauge and an elastic matrix. The sheet is adhered to the elastic substrate, the resistance strain gauge 1 is installed at the place where the electric pressure cooker lid 3 communicates with the air pressure in the pot, the resistance strain gauge is connected to the signal amplifier circuit, and the signal amplifier circuit is connected to the pressure A control system, the pressure control system includes: resistance strain gauges glued on a suitable elastic substrate to form a resistance strain gauge 1, signal amplifier (reference circuit) figure 2 , SCM system, electric exhaust valve 4. The principle...
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The invention discloses a pressure detection device for an electric pressure cooker, which comprises a resistance strain gauge, a signal amplification circuit, and a pressure control system used for realizing pressure detection and control, wherein the resistance strain gauge comprises a resistance strain chip and an elastic substrate, the resistance strain chip is adhered to the elastic substrate, the resistance strain gauge is arranged at the position on which a cooker cover of the electric pressure cooker is communicated with air pressure in the cooker, the resistance strain chip is connected with the signal amplification circuit, the signal amplification circuit is connected with the pressure control system, and the pressure control system comprises a pressure detection module used for calculating a pressure value corresponding to a current detection signal according to the proportional linear relation between the detection signal and the pressure. The pressure detection device for the electric pressure cooker has simple debugging, is suitable for mass production, and has high detection accuracy.
Description
technical field [0001] The invention relates to the technical field of electric pressure cookers, in particular to a pressure detection device for electric pressure cookers. Background technique [0002] Now most of the electric pressure cooker is an intelligent electric pressure cooker, which works through the MCU control function program. In order to make the function better and make the electric pressure cooker safer. People have adopted many methods of controlling and detecting the pressure in the pot. At present, the pressure measurement of electric pressure cookers generally uses a thermistor temperature sensor placed on the top of the pot to measure the temperature in the pot, and then converts the pressure data into air pressure data to control the functional program through a single-chip microcomputer. We know that the pressure in the electric pressure cooker is related to factors such as the temperature in the pot and the nature of the food being cooked in the po...
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IPC IPC(8): G01L9/04G01L19/04G01L19/06G05D16/20A47J27/09
Inventor蔡才德陈环凌金星
OwnerZHEJIANG SUPOR ELECTRICAL APPLIANCES MFG CO LTD