CN2367209Y

CN2367209Y - Computor controlled pressure cooker

Info

Publication number: CN2367209Y
Application number: CN 98249700
Authority: CN
Inventors: 曾达昌; 陈荫钊; 陈亿善
Original assignee: FOSHAN CITY DOMESTIC ELECTRIC-APPLIANCE GENERAL FACTORY
Current assignee: FOSHAN CITY DOMESTIC ELECTRIC-APPLIANCE GENERAL FACTORY
Priority date: 1998-12-25
Filing date: 1998-12-25
Publication date: 2000-03-08
Anticipated expiration: 2008-12-25

Abstract

The utility model relates to a computer controlled pressure cooker which is mainly composed of a pressure cooker body, an overpressure preventing safety device, a heating plate and a full-automatic control device, wherein, the full-automatic control device is composed of a single chip computer, an operating key, a display screen, a temperature sensor, a heating control circuit, an electric decompressor and a decompression circuit which can convert light current electric signals output by the single chip computer to drive the electric decompressor to work. The utility model has the advantages of high temperature controlling precision, low quality cost and reliable timing.

Description

Computerized pressure cooker

Thereby existing Automatic pressure cooker generally is to realize the work of Automatic Control pressure cooker by magnet steel temperature controller and timer action, this Automatic pressure cooker is owing to be to be with pressure work, for security needs, the control of kettle temperature is very strict, so just to magnet steel temperature controller quality requirement height, finally caused the quality cost height of magnet steel temperature controller, mechanical type timepiece is out of order because of corrosion easily.

Goal of the invention of the present utility model is to provide a kind of temperature control precision height, low, the reliable computerized pressure cooker of timing of quality cost.

The utility model is to realize like this, comprise the pressure cooker body, the superpressure preventing safety device, heating plate, device for automatically controlling, wherein device for automatically controlling is by single-chip microcomputer, joystick key, display screen, temperature sensor, heating control circuit, electronic decompressor, convert the weak current signal of telecommunication of single-chip microcomputer output to can drive electronic decompressor work voltage step-down circuit formation, be used to measure the temperature sensor of pot body and heating plate temperature and the signal input part of single-chip microcomputer joins, be used to control the heating control circuit of heating plate work and the signal output part of single-chip microcomputer joins, be used to show that the display screen of computerized pressure cooker and the signal output part of single-chip microcomputer join, be used to control the voltage step-down circuit of electronic decompressor work and the signal output part of single-chip microcomputer joins.During use, connect power supply, single-chip microcomputer is controlled heating plate work according to pre-set programs by heating control circuit, when kettle temperature reaches preset temperature, temperature sensor is exported a signal to single-chip microcomputer, makes single-chip microcomputer start timing according to pre-set programs, can control the work of heating plate half-power by heating control circuit simultaneously, when kettle temperature exceeded preset temperature, single-chip microcomputer was controlled electronic decompressor venting decompression cooling according to pre-set programs by voltage step-down circuit.Here, the effect of display is to show that the duty of pressure cooker and demonstration are by the selected program that defaults in the single-chip microcomputer of joystick key.

The utility model compared with the prior art, owing to adopted single-chip microcomputer, correspondingly added electronic decompressor, voltage step-down circuit, heating control circuit, when overtemperature, can in time lower the temperature by steam discharge, both guarantee the pressure cooker safe handling, also guaranteed temperature control precision simultaneously, lowered quality cost, adopt the single-chip microcomputer electric time-keeping, eliminated the fault that occurs because of corrosion that occurs easily on the mechanical type timepiece.

Fig. 1 is an organigram of the present utility model.

Now reaching embodiment in conjunction with the accompanying drawings describes in further detail the utility model:

The utility model is mainly by the pressure cooker body, the superpressure preventing safety device, heating plate, device for automatically controlling constitutes, wherein device for automatically controlling is by single-chip microcomputer, joystick key, display screen, temperature sensor, heating control circuit, electronic decompressor, convert the weak current signal of telecommunication of single-chip microcomputer output to can drive electronic decompressor work voltage step-down circuit formation, be used to measure the temperature sensor of pot body and heating plate temperature and the signal input part of single-chip microcomputer joins, be used to control the heating control circuit of heating plate work and the signal output part of single-chip microcomputer joins, be used to show that the display screen of computerized pressure cooker and the signal output part of single-chip microcomputer join, be used to control the voltage step-down circuit of electronic decompressor work and the signal output part of single-chip microcomputer joins.

Here, heating control circuit can join with a plurality of signal output parts of single-chip microcomputer, like this, single-chip microcomputer can according to default program by heating control circuit control heating plate when work, the length of working time, when power cut-off and select the heating power (as total power or half-power) of heating plate.

In order in the safe handling pressure limit, to set working pressure as required arbitrarily, on the pot body, also be provided with the pressure sensor of measuring pot inner pressure, the signal input part of pressure sensor and single-chip microcomputer joins, like this, behind the default working pressure of joystick key, under the acting in conjunction that detection and single-chip microcomputer, voltage step-down circuit, the automatic pressure-reducing device of pressure sensor are controlled, pressure cooker is worked under default pressure.

Claims

1, a kind of computerized pressure cooker, comprise the pressure cooker body, the superpressure preventing safety device, heating plate, device for automatically controlling, it is characterized in that device for automatically controlling is by single-chip microcomputer, joystick key, display screen, temperature sensor, heating control circuit, electronic decompressor, convert the weak current signal of telecommunication of single-chip microcomputer output to can drive electronic decompressor work voltage step-down circuit formation, be used to measure the temperature sensor of pot body and heating plate temperature and the signal input part of single-chip microcomputer joins, be used to control the heating control circuit of heating plate work and the signal output part of single-chip microcomputer joins, be used to show that the display screen of computerized pressure cooker and the signal output part of single-chip microcomputer join, be used to control the voltage step-down circuit of electronic decompressor work and the signal output part of single-chip microcomputer joins.

2, computerized pressure cooker according to claim 1 is characterized in that also being provided with the pressure sensor of measuring pot inner pressure on the pot body, and the signal input part of pressure sensor and single-chip microcomputer joins.