CN2367933Y

CN2367933Y - Intelligent electromagnetic stove with automatic food-cooking programme control chip

Info

Publication number: CN2367933Y
Application number: CN 98245044
Authority: CN
Inventors: 邓志雄
Original assignee: GUANGZHOU ENVIRONMENT-PROTECTION ELECTRONIC Co Ltd
Current assignee: GUANGZHOU ENVIRONMENT-PROTECTION ELECTRONIC Co Ltd
Priority date: 1998-10-12
Filing date: 1998-10-12
Publication date: 2000-03-08
Anticipated expiration: 2008-10-12

Abstract

The utility model discloses an external structure and an internal circuit structure of an intelligent electromagnetic stove provided with an automatic food-cooking programme control chip. An outer shell of an electromagnetic stove is additionally provided with various indicator lights, warming function select buttons, etc. Because an internal circuit of the electromagnetic stove is additionally provided with an automatic food-cooking programme control chip which can emit a command for a central control circuit, the electromagnetic stove can realize operating modes, such as the automatic constant temperature, the automatic heating, the automatic cooking food, etc. Compared with similar products, the electromagnetic stove is more excellent and more intelligent. When a user uses the electromagnetic stove, time, labor and electricity can be saved. The process for cooking food is interesting, funny and safe.

Description

A kind of intelligent electromagnetic oven with automatic cooking program control chip

The utility model relates to the improvement of electromagnetic oven shell mechanism and internal circuit design, particularly a kind of intelligent electromagnetic oven with cooking program control chip.

Do not have intelligentized program control chip in the internal circuit of the electromagnetic oven of selling on the market, so heating function relies on operator's hand-guided, shortcoming is to use function ratio less, because the automatic program of the science of shortage, so power consumption is many.

The purpose of this utility model is at above-mentioned shortcoming, in the electromagnetic oven internal circuit design, increases automatic cooking program control chip, makes that the electromagnetic oven increase is boiled soup automatically, cooked automatically, function such as boiling water automatically, saves electric energy simultaneously.

The purpose of this utility model is achieved in that

In the electromagnetic oven internal circuit, increase automatic cooking program control chip, send control and information by function selector circuit and sample circuit to automatic cooking program control chip, send instruction by automatic cooking program control chip to central control circuit again, realize the function that control is automatically cooked.

Owing to adopt the utility model, increased automatic cooking program control chip, solved in the internal circuit of general electromagnetic oven, there is not intelligentized program control chip, heating function relies on Artificial Control, and the function of use scope is little, the shortcoming that power consumption is many.

Accompanying drawing 1 is the utility model external structure schematic diagram, and accompanying drawing 2 is the utility model internal circuit configuration block diagrams, and accompanying drawing 3 is the program control partial circuit schematic diagrams of the utility model.

In conjunction with the accompanying drawings and embodiments, further describe external structure of the present utility model and internal circuit configuration.

The electromagnetic oven shell install constant temperature indicator lamp 1, the indicator lamp 2 of heating, power switch button 3, automatically/constant temperature selector button 4, add temperature function selector button 5, down trim button 6, go up trim button 7,

power indicator lamp

8,9,10,11,12.

Press power switch button 3, the constant temperature indicator lamp and indicator lamp 2 flicker of heating, by automatically/constant temperature selector button 4, according to kind that is heated food and heating purposes, as boil soup, cook or boiling water, milk, coffee, tea etc., select control program.Can the varying cyclically temperature, as 60 ℃, 83 ℃, 93 ℃, 150 ℃, 180 ℃ etc., press trim button 6 this moment or go up trim button 7, can increase or reduce temperature in former control temperature.By adding temperature function selector button 5, power that can the varying cyclically electromagnetic oven.After entering auto-programming, an indicator lamp in the

power indicator lamp

8,9,10,11,12 can be bright, illustrates to enter a certain function program.Above-mentioned each button is connected with function selector circuit 13, and function selector circuit 13 is connected with automatic cooking program control chip 14.When automatic cooking program control chip 14 is started working, two thermistor temperature-sensitive circuits 16 are imported furnace surface temperature in the automatic cooking program control chips 14 through sample circuit 15, send instruction by automatic cooking program control chip 14 to central control circuit 17 again, through the temperature of power output circuit 18 control boiler faces, finish and boil soup, cook, task such as boiling water.

Inner program control partial circuit structure of the utility model and principle such as accompanying drawing 3 are disclosed, and in programme control circut 19, after connecting power supply, automatic cooking program control chip 14 can be reset automatically.At this moment; the synchronous triggering of the 20th pin P1.5/INTO/D5 of automatic cooking program control chip 14 is ignored; the 21st pin protects input to trigger automatically; automatic cooking program control chip 14 is accepted programmed instruction; all indicator lamps extinguish; and begin to wait for that ON/OFF key, the clock of automatic cooking program control chip 14 are 12MHz.

After clicking the ON/OFF key, automatic cooking program control chip 14 is by the supply voltage sample circuit, the 13rd pin P1.0/ADC0/D0 that is transported to automatic cooking program control chip 14 goes to read the civil power data, if meet the requirements, constant temperature and heating lamp begin to flash simultaneously, frequency is per second 10 times, 1: 1 square wave.At this moment, automatic cooking program control chip 14 waits for that the user selects mode of operation.

The constant temperature pattern: do not stop to press constant temperature key selector button 4, can varying cyclically the control temperature, temperature is 60 ℃, 83 ℃, 93 ℃, 150 ℃, 180 ℃ etc., also can by last trim button 7 or down trim button 6 change temperature, to reach the temperature control optimum efficiency.Temperature controlling adopts two temperature-sensitive sample circuits and holding circuit to finish; it removes reading temperature data by the 16th pin P1.3/ADC3/D3 and the 17th pin P1.4/ADC4/D4 that the two thermistor temperature-sensitive circuits among the figure 16 and two temperature-sensitive sample circuit 15 are transported to automatic cooking program control chip 14; 14 of automatic cooking program control chips can change its PWM duty cycle square wave according to the correct data that reads automatically; send instruction to central control circuit 17, realize the mode of operation of automatic constant temperature.

Heating mode: do not stop to press and add temperature function selector button 5 keys, can varying cyclically power, be respectively 20%, 40%, 60%, 80%, 100% output, simultaneously, also can change power by last trim button 7 or following trim button 6, can add and subtract 4% at every turn, reach the purpose of heating optimum efficiency.In heating mode, automatic cooking program control chip 14 passes through current sampling circuit, the 14th pin P1.1/ADC1/D1 that is transported to automatic cooking program control chip 14 reads the data of electric current, automatic cooking program control chip 14 needs each second by the needed current value of change calculations of civil power value at that time then, thereby extrapolate the PWM square wave export ratio of next cycle, under the power heating mode, with stability and the reliability of guaranteeing its power output.

Automatic function pattern (to boil water automatically, cook automatically, automatic other function of cooking such as Baoshang): under the automatic function pattern, automatic cooking program control chip 14 can be finished the automatic function program according to time change power and temperature according to the power temperature and time data that preestablishes.In programme control circut 19, each sample circuit and the control circuit of automatic cooking program control chip 14 peripheries send information to automatic cooking program control chip 14,5 A/D interfaces of automatic cooking program control chip 14, every in order 5ms reads related data one time, send instruction by automatic cooking program control chip 14 to central control circuit 17 again, realize the function of cooking automatically that this cover is complete.The 8th pin P0.0/SCL/ASEL of automatic cooking program control chip 14 is series connection communication output (RS-232), and form is 9600 BAUD, NOPARITY, 8BIT, 1STOP BIT.Data can be exported in the ANSI mode, after the RS-232 voltage transitions, just can receive on the PC, by bitcom commonly used, just electromagnetic oven duty at that time can be seen, and the variation of various technical parameters such as supply voltage, electric current, high pressure, temperature, power and time can be observed.Because the utility model has increased automatic cooking program control chip on electromagnetic oven, finish every measuring ability by PC, makes it more intelligent in the electromagnetic oven like product, and has stepped major step to high-tech area.Thereby make that the user more saves time in use, power saving, fast, the richer temperament and interest of cooking, beautiful, reliable, more solved general electromagnetic oven and utilized Artificial Control, function of use is narrow, power consumption is big shortcoming.

Claims

1, a kind of intelligent electromagnetic oven with automatic cooking program control chip, function selector button [3], [4], [5], [6], [7], indicator lamp [1], [2], [8], [9], [10], [11], [12], function selector circuit [13], temperature-sensitive circuit [16], sample circuit [15], central control circuit [17], power output circuit [18] is electrically connected in order, it is characterized in that: increase an automatic cooking program control chip [14], 1,2 of automatic cooking program control chip [14], 3,4,5 pin are electrically connected with function selector circuit [13], 16 of automatic cooking program control chip [14], 17 pin are electrically connected with sample circuit [15], and 24 pin of automatic cooking program control chip [14] are electrically connected with central control circuit [17].

2, a kind of intelligent electromagnetic oven with automatic cooking program control chip according to claim 1 is characterized in that: temperature-sensitive circuit [16] and sample circuit [15] by two groups independently, circuit that circuit characteristic is identical forms.