CN202069423U - Electric cooker - Google Patents

Electric cooker Download PDF

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Publication number
CN202069423U
CN202069423U CN2011201153951U CN201120115395U CN202069423U CN 202069423 U CN202069423 U CN 202069423U CN 2011201153951 U CN2011201153951 U CN 2011201153951U CN 201120115395 U CN201120115395 U CN 201120115395U CN 202069423 U CN202069423 U CN 202069423U
Authority
CN
China
Prior art keywords
temperature
pot
boiling point
electric cooker
main control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2011201153951U
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Chinese (zh)
Inventor
蔡才德
方叶挺
樊杜平
朱春生
孟城城
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Supor Electrical Appliances Manufacturing Co Ltd
Original Assignee
Zhejiang Supor Electrical Appliances Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Supor Electrical Appliances Manufacturing Co Ltd filed Critical Zhejiang Supor Electrical Appliances Manufacturing Co Ltd
Priority to CN2011201153951U priority Critical patent/CN202069423U/en
Application granted granted Critical
Publication of CN202069423U publication Critical patent/CN202069423U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model belongs to the kitchen small-sized electric appliance field, especially relates to an electric cooker, which comprises a pot body and a pot cover disposed on the pot body; a main control circuit is disposed in the pot body or the pot cover; a temperature detection circuit is also disposed in the pot cover, and is connected with the main control circuit; the temperature detection circuit includes a boiling point judging apparatus. The electric cooker can perform cooking automatically based on different boiling point temperatures and programs; achieves plateau cooking compensation function, can measure temperature accurately, save time, and reduce occurrences of burning and half-cooking.

Description

A kind of electric cooker
Technical field
The utility model belongs to small household appliances field, kitchen, is specifically related to a kind of electric cooker.
Background technology
On the sea level, the boiling point of water is 100 ℃.Along with the rising of height above sea level, the boiling point of water can reduce gradually, and the boiling point of the different water of height above sea level is also different.At present the common electric cooker process of cooking generally is: rice suction during at first little fire, and big then the baked wheaten cake to liquid boiling treats that at last liquid dryouies back slow fire and cooks rice over a slow fire; The process of cooking congee is: at first big fire burns uniform temperature (being generally 80 ℃) with the liquid in the pot, then little fiery discontinuous heating.The highlands is generally its boiling point of height above sea level rising 300m and descends 1 ℃ because height above sea level is more higher than the sea level, and its boiling point is lower than the sea level.Common electric cooker all is that the boiling temperature with liquid is set at the boiling temperature that normal atmosphere is depressed, and then is the liquid boiling state when the fluid temperature in the electric cooker is higher than this temperature.So when cooking or cooking gruel in the highlands often since in the pot of different regions the boiling point of liquid uncertain, thereby cause having in the process of cooking thin rice gruel to overflow or burnt half-cooked; Cause thin rice gruel to overflow in pot congee process or water not boiling at all, have a strong impact on culinary art effect and eating mouth feel; Simultaneously also prolong cooking time, cause resource and waste of time.
Be applicable to any height above sea level in order to reach the pot prodigiosin, publication number be CN101446811A, the name be called " a kind of pressure adaptation method for electric heating cooker and device thereof " the Chinese invention patent Shen Qing Publication a kind of pressure adaptation method for electric heating cooker, its method comprises prior setting boiling point control parameter; Main control chip reads the corresponding liquid boiling temperature that the boiling point control parameter converts and foundation converses and cooks; Wherein device comprises the memory that is used to store the boiling point control parameter of setting the hardware shape of corresponding boiling point control parameter or being connected/being built in main control chip with main control chip with main control chip being used to of connecting.This method and device are set the boiling point control parameter of electric heating cooker at different atmospheric pressure (height above sea level), and main control chip is discerned this parameter, and does corresponding heating and adjust, and make the cooker down can both operate as normal at various atmospheric pressure (height above sea level).The cooker of using this method is when operate as normal, and main control chip need read detected boiling point control parameter and convert, and cooks according to the corresponding liquid boiling temperature that converses again.This invention mainly converses corresponding liquid boiling according to the level state of switch electricity etc. and judges and temperature be easy to generate the error of computational discrimination in the time of the process complexity.Because carry out computational discrimination when needing to detect, need the higher chip of performance and other electronic components to support, cost increases complex structure.
Publication number is the detection method that Chinese invention patent application that CN101750433A, name are called " a kind of method that detects boiling point of liquid in open container " discloses a kind of boiling point of liquid, being heated liquid is heated to fluidized state from normal temperature and will experiences four-stage: (1) low-temperature zone, and thermograde is big; (2) high temperature section, thermograde is little; (3) nearly boiling point section, thermograde goes to zero; (4) boiling section, thermograde are zero.Compare computing according to time and acquisition real time temperature gradient, then be defaulted as boiling when gradient is zero, electric heating body entered and stopped heating or holding stage this moment.This method need compare computing by gradient, the process complexity.And this method in the course of the work, all needs to detect in each course of work, greatly reduces the effect of culinary art when prolonging cooking time.
Therefore, obtain simple in structure, accuracy of judgement, can be applicable to the electric cooker of different altitude height, be still that people thirst for.
Summary of the invention
Technical purpose of the present utility model is at the deficiencies in the prior art, and a kind of simple in structure, convenient direct electric cooker of temperature detection is provided.
The technical scheme that realizes the utility model technical purpose is:
A kind of electric cooker, comprise pot body and be arranged at pot pot cover of body top, be provided with main control circuit in described pot body or the described pot cover, also be provided with temperature sensing circuit in the described pot cover, described temperature sensing circuit is connected with described main control circuit circuit, and described temperature sensing circuit includes the boiling point judgment means.
Further, described boiling point judgment means comprises single-chip microcomputer and temperature element, and described single-chip microcomputer is connected with the temperature element circuit.In the course of the work, temperature element atmosphere/steam direct and in the pot body contacts, and realizes direct temperature measurement.
Further, described bottom of pot body is provided with electrical heating elements, and described temperature element is connected with described temperature sensing circuit circuit with described electrical heating elements.
Further, as of the present utility model preferred, described temperature element is a thermistor.
The boiling point judgment means of electric cooker of the present utility model, when concrete work,
A). electric cooker operation boiling point determining program;
B). described electrical heating elements is with heating with full power, obtains temperature T 1 after heating a certain special time P1; Power is big more, and heat time heating time, the value of P1 was then more little.When temperature is T1, enter next step.
C). when temperature was T1, described electrical heating elements was with half-power or low-power heating, and be P2 heat time heating time; When temperature reached certain value, if adopt heating with full power again, the boiling point that temperature reaches some height above sea level then can produce the pot phenomenon of overflowing.So adopt half-power or lower powered heated condition this moment.
D) temperature that described temperature element detects in the .P2 time period is described constant value T2; In lasting half-power or low-power operation time period, a stationary temperature numerical value can appear.Then this constant value is the boiling point value
5) described constant value T2(boiling point value just) be stored in the single-chip microcomputer, temperature detection finishes.
In above-mentioned steps, described temperature element can also detect atmospheric temperature or fluid temperature T0 in pot body in advance; T0 is stored in the single-chip microcomputer.
As the further optimization of technical solutions of the utility model, when the temperature of measuring behind the operation boiling point determining program is constant value T2 in the time period of 1min, promptly store this numerical value in single-chip microcomputer.
As the further optimization to technique scheme, described T1 is 65 ℃ ~ 85 ℃.Because under the normal temperature, fluid temperature is about about 25 ℃, and electric heating unit is when just beginning to heat, and slower because of the heat transfer rate of liquid, in initial heat time heating time of above-mentioned 1min section, the variations in temperature of liquid is little.If when the culinary art beginning, move the boiling point determining program, then can cause the disconnected phenomenon of erroneous judgement, the initial temperature that does not promote is stored as steady temperature.At the heating certain hour, liquid reaches 60 degree when above, and liquid can be in a temperature rising value than balance, and the boiling point determining program that reruns this moment can avoid judging by accident disconnected phenomenon preferably.In addition, when the culinary art beginning, move the boiling point determining program, the process that control program is detecting always, judging, in the time of the waste resource, the life-span of also reducing chip or other electronic components.
Have data to show, the height above sea level of 5000m, its boiling temperature are 81 ℃, so, being suitable for the boiling point determining program of the electric cooker control method of Different Altitude at the utility model, the optimum temperature of T2 is 75 ℃.
Compared with prior art, the beneficial effect of a kind of electric cooker of the utility model mainly shows and is:
1, can be according to different boiling temperatures, according to the constant value of judging, program is cooked automatically.
2, under Different Altitude, use and all can make the cooking process boiling and non-overflow pan reduces burnt or half-cooked phenomenon;
3, only need 1 minute steady temperature detection time, more traditional detection method is saved 3-5 minute;
4, complex processes such as the parameter conversion of release traditional detection device needs, level conversion, gradient computing, the time saving while, the utility model is lower to the requirement of chip and electronic component, and cost is saved;
5, checkout gear of the present utility model is arranged at the pot cover position, directly detects steam temperature, objective environment factor affecting such as liquid body composition or concentration not, and tradition is accurately for thermometric;
6, the utility model also is provided with temperature detection at bottom of pot body when pot cover is provided with checkout gear, double check, and thermometric is accurate, errorless.
Description of drawings
Figure 1 shows that the cross-sectional view of the utility model electric cooker.
Figure 2 shows that the boiling point deterministic process temperature curve schematic diagram of the utility model electric cooker.
Figure 3 shows that the workflow schematic diagram of the utility model electric cooker.
The specific embodiment
In conjunction with the accompanying drawings, by following application example the utility model is further elaborated:
Referring to accompanying drawing 1-3, a kind of electric cooker of the utility model, comprise pot body and the pot cover that is arranged at pot body 1 top, be provided with main control circuit 2 in pot body 1 or the described pot cover, also be provided with temperature sensing circuit 3 in the pot cover, temperature sensing circuit 3 is connected with main control circuit 2 circuit, and temperature sensing circuit 3 includes the boiling point judgment means.In the present embodiment, be provided with main control circuit 2 particularly in the pot cover, carry out temperature detection in the direct corresponding pot body of main control circuit.
The boiling point judgment means comprises single-chip microcomputer and temperature element, and single-chip microcomputer is connected with the temperature element circuit.
Bottom of pot body is provided with heating 4, and temperature element is connected with temperature sensing circuit 3 circuit with heating 4.
In the present embodiment, temperature element is preferably thermistor.
The electric cooker of present embodiment is in the specific implementation:
A). start the boiling point determining program of electric cooker inner control unit earlier;
B). move the boiling point determining program, and draw constant value T2 by the boiling point determining program, constant value T2 is stored in the main control circuit 2;
C). during the electric cooker operate as normal, temperature element reads described constant value T2 and is the acquiescence boiling temperature.
When above-mentioned boiling point judgment means is applied to Different Altitude once more, restart the boiling point determining program of main control circuit 2, this moment, the boiling point determining program calculated different constant value T2 ' according to different height above sea level, and then T2 ' is the acquiescence boiling temperature of this height above sea level.In the normal cooking process afterwards, according to different boiling temperatures, program is cooked automatically.Comprise plateau culinary art compensation.
Above-mentioned B) step comprises the steps: when further specifically implementing
A). main control circuit 2 operation boiling point determining programs;
B). electrical heating elements is with heating with full power, and obtain temperature T 1 behind the P1 heat time heating time; Power is big more, and heat time heating time, the value of P1 was then more little.When temperature is T1, enter next step.
C). when temperature was T1, electrical heating elements was with half-power or low-power heating, and be P2 heat time heating time; When temperature reached certain value, if adopt heating with full power again, the boiling point that temperature reaches some height above sea level then can produce the pot phenomenon of overflowing.So adopt half-power or lower powered heated condition this moment.
D) temperature that temperature element detects in the .P2 time period is described constant value T2; In lasting half-power or low-power operation time period, a stationary temperature numerical value can appear.Then this constant value is the boiling point value.
5) constant value T2(boiling point value just) be stored in the single-chip microcomputer, temperature detection finishes.
When further specifically implementing, when the temperature of measuring behind the operation boiling point determining program is constant value T2 in the time period of 1min, promptly store this numerical value in single-chip microcomputer.
At this moment, the preferred temperature of T2 is 75 ℃.
In sum; after those of ordinary skill in the art reads the utility model file; need not the replacement that scheme between other various corresponding conversion scheme or each embodiment of the utility model is made in creative mental labour according to the technical solution of the utility model and technical conceive, all belong to the scope that the utility model is protected.

Claims (4)

1. electric cooker, comprise pot body and the pot cover that is arranged at a pot body (1) top, be provided with main control circuit (2) in described pot body (1) or the described pot cover, it is characterized in that also being provided with in the described pot cover temperature sensing circuit (3), described temperature sensing circuit (3) is connected with described main control circuit (2) circuit, and described temperature sensing circuit (3) includes the boiling point judgment means.
2. a kind of electric cooker according to claim 1 is characterized in that described boiling point judgment means comprises single-chip microcomputer and temperature element, and described single-chip microcomputer is connected with the temperature element circuit.
3. a kind of electric cooker according to claim 2 is characterized in that described bottom of pot body is provided with electrical heating elements (4), and described temperature element is connected with described temperature sensing circuit (3) circuit with described electrical heating elements (4).
4. according to claim 2 or 3 described a kind of electric cookers, it is characterized in that described temperature element is a thermistor.
CN2011201153951U 2011-04-19 2011-04-19 Electric cooker Expired - Lifetime CN202069423U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201153951U CN202069423U (en) 2011-04-19 2011-04-19 Electric cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201153951U CN202069423U (en) 2011-04-19 2011-04-19 Electric cooker

Publications (1)

Publication Number Publication Date
CN202069423U true CN202069423U (en) 2011-12-14

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CN (1) CN202069423U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105662115A (en) * 2016-03-30 2016-06-15 九阳股份有限公司 Cooking method for household appliance
CN105865408A (en) * 2015-01-19 2016-08-17 佛山市顺德区美的电热电器制造有限公司 Altitude height detection method used for cooking utensils, apparatus thereof and cooking utensils
CN106264072A (en) * 2015-06-08 2017-01-04 佛山市顺德区美的电热电器制造有限公司 Control the method and apparatus of cooking apparatus, cooking apparatus and terminal
CN110384398A (en) * 2018-04-20 2019-10-29 佛山市顺德区美的电热电器制造有限公司 Cooking apparatus and its anti-overflow discharge control method and control device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105865408A (en) * 2015-01-19 2016-08-17 佛山市顺德区美的电热电器制造有限公司 Altitude height detection method used for cooking utensils, apparatus thereof and cooking utensils
CN106264072A (en) * 2015-06-08 2017-01-04 佛山市顺德区美的电热电器制造有限公司 Control the method and apparatus of cooking apparatus, cooking apparatus and terminal
CN106264072B (en) * 2015-06-08 2018-07-27 佛山市顺德区美的电热电器制造有限公司 Control method and apparatus, cooking apparatus and the terminal of cooking apparatus
CN105662115A (en) * 2016-03-30 2016-06-15 九阳股份有限公司 Cooking method for household appliance
CN105662115B (en) * 2016-03-30 2018-10-19 九阳股份有限公司 A kind of cooking methods of household electrical appliance
CN110384398A (en) * 2018-04-20 2019-10-29 佛山市顺德区美的电热电器制造有限公司 Cooking apparatus and its anti-overflow discharge control method and control device

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