CN103190829A - Multi-parameter alarming method for household electric pressure cooker - Google Patents
Multi-parameter alarming method for household electric pressure cooker Download PDFInfo
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- CN103190829A CN103190829A CN2013101337018A CN201310133701A CN103190829A CN 103190829 A CN103190829 A CN 103190829A CN 2013101337018 A CN2013101337018 A CN 2013101337018A CN 201310133701 A CN201310133701 A CN 201310133701A CN 103190829 A CN103190829 A CN 103190829A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000004065 semiconductor Substances 0.000 claims abstract description 23
- 235000013305 food Nutrition 0.000 claims description 40
- 238000009841 combustion method Methods 0.000 claims description 22
- 230000000694 effects Effects 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000005764 inhibitory process Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000009835 boiling Methods 0.000 abstract description 3
- 238000004880 explosion Methods 0.000 abstract 1
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- 238000010411 cooking Methods 0.000 description 2
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- 206010061688 Barotrauma Diseases 0.000 description 1
- 206010020852 Hypertonia Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- 230000015556 catabolic process Effects 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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Abstract
The invention relates to a multi-parameter alarming method for a household electric pressure cooker. The multi-parameter alarming method includes that a controller is connected with a temperature sensor, a semiconductor strain gauge pressure sensor, a water level detector, an audio display module and a display screen respectively, and the audio display module is connected with storage; and the controller determines an alarming strategy according to detected results of the temperature sensor, the semiconductor strain gauge pressure sensor and the water level detector, namely the temperature, the inner pressure and the actual water level. By the multi-parameter alarming method, specific information of the multiple parameters of the temperature, the pressure and the water level inside the household electric pressure cooker can be detected, alarming information of the multiple parameters can be transmitted to users, so that the users can take measures conveniently, safety hazards of explosion and dry boiling of the electric pressure cooker can be avoided, and personal and property safety of the users can be guaranteed.
Description
Technical field
The present invention relates to a kind of multi-parameter alarm method of family expenses electric pressure cooker, relate in particular to a kind of for the multi-parameter alarm method that can determine whether the family expenses electric pressure cooker of reporting to the police in the kitchen according to the concrete operating position of electric pressure cooker, when the user indoor be not concerned about the electric pressure cooker internal pressure or temperature is excessive, when the electric pressure cooker cooking food is excessive, whether can analyze inner each parameter of electric pressure cooker automatically exceeds standard, and actively seek solution, ensured the safety of house property and the person.
Background technology
The principle of pressure cooker is very simple, because the boiling point of water is subjected to effects of air pressure, air pressure is more high, and boiling point is more high.On high mountain, plateau, air pressure is less than 1 atmospheric pressure, just can seethe with excitement less than 100 ℃ of water, egg with common pan be boil not yet done.During greater than 1 atmospheric pressure, water will just can seethe with excitement when being higher than 100 ℃ at air pressure.The pressure cooker that people use always now utilizes this principle design.Pressure cooker ought closely be closed water, the steam that water is produced by thermal evaporation can not be diffused in the air, can only be retained in the pressure cooker, be higher than 1 atmospheric pressure with regard to the air pressure that makes pressure cooker inside, water will just be seethed with excitement when being higher than 100 ℃, pressure cooker inside just forms the environment of HTHP like this, and meal is just cooked ripe easily very soon.But the pressure in the pressure cooker can be not without limits, otherwise just become bomb.
But, existing electric pressure cooker lack automatic alarm method usually, perhaps alarm method is very simple, the user can't rely on simple warning message recognize the electric pressure cooker inner case.Under the situation that lacks necessary alarm method, electric pressure cooker is inner when temperature is too high, can cause safety-valve to be opened automatically, when hypertonia, can cause electric pressure cooker blast, perhaps when water level low excessively, electric pressure cooker is in dry-fire condition always, also can cause the generation that waits dangerous situation on fire.The declaration of an accident of pressure cooker is common on the newspaper news, often causes bigger personal injury or huge property loss.
Therefore, need a kind of multi-parameter alarm method for the family expenses electric pressure cooker in the kitchen, in time detect each parameter situation in the electric pressure cooker, compare with corresponding predetermined threshold, determine whether the present situation is dangerous, whether need to User Alarms, take measures, as outage, die, ensure the normal use of electric pressure cooker, stop potential safety hazard.
Summary of the invention
In order to address the above problem, the invention provides a kind of multi-parameter alarm method for family expenses electric pressure cooker in the kitchen, make that the user needn't guarantee each parameter of electric pressure cooker is paid close attention to constantly, need not oneself observe the operating position of electric pressure cooker, when going wrong, in time warn, thereby improve the security of electric pressure cooker, avoided personal injury and property loss.
According to an aspect of the present invention, a kind of multi-parameter alarm method for kitchen family expenses electric pressure cooker is provided, comprise controller is connected with display with temperature sensor, semiconductor gauge pressure sensor, level switch, speech play module respectively, the speech play module is connected with memory, controller is inner vapor temperature, internal pressure and actual water level according to the testing result of temperature sensor, semiconductor gauge pressure sensor, level switch, determines the strategy of reporting to the police.
More specifically, the multi-parameter alarm method of described family expenses electric pressure cooker further comprises: be installed on the pressure limiting valve, be positioned at steam vent opposite temperature sensor, detect and export the inner vapor temperature of electric pressure cooker; Be positioned at the semiconductor gauge pressure sensor of a side of pressure limiting valve, it is a Wheatstone bridge on monocrystalline silicon piece spreads, and according to the differential voltage signal that the voltage inhibition effect produces, detects and export the internal pressure of electric pressure cooker; Be positioned at the level switch of electric pressure cooker bottom one side, adopt equidistant distribution of electrodes form, have or not the signal of telecommunication according to each electrode, detect and the interior actual water level of output electric pressure cooker; Respectively with temperature sensor, the semiconductor gauge pressure sensor, level switch, the controller that the speech play module is connected with display, receive described inner vapor temperature, internal pressure and actual water level, when internal pressure during greater than 180kpa, send the pressure anomaly signal, when internal pressure during greater than 300kpa, send the pressure hazard signal, when the inner vapor temperature is spent greater than 140, send the temperature anomaly signal, when the inner vapor temperature is spent greater than 170, send the temperature danger signal, and determine the not yet done or dry combustion method of food in the pot according to the detection of actual water level, send the not yet done signal of food or food dry combustion method signal; The speech play module receives the pressure anomaly signal of controller output, the pressure anomaly signal, the temperature anomaly signal, the temperature danger signal, the not yet done signal of food and food dry combustion method signal, and from memory, read and the pressure anomaly signal, the pressure anomaly signal, the temperature anomaly signal, the temperature danger signal, the not yet done signal of food and food dry combustion method signal the auditory tone cues file of correspondence are respectively play, simultaneously, display receives the pressure anomaly signal of controller output, the pressure anomaly signal, the temperature anomaly signal, the temperature danger signal, the not yet done signal of food and food dry combustion method signal, and in its display screen demonstration and pressure anomaly signal, the pressure anomaly signal, the temperature anomaly signal, the temperature danger signal, the not yet done signal of food and food dry combustion method signal be the warning message of correspondence respectively; Wherein, when controller sends pressure hazard signal, temperature anomaly signal or food dry combustion method signal, cut off the voltage source that adds of electric pressure cooker, when controller sends the not yet done signal of food, start electric pressure cooker and add voltage source; Wherein, memory, speech play module, display and controller can be positioned at the power control switch side of electric pressure cooker.
More specifically, the multi-parameter alarm method of described family expenses electric pressure cooker further comprises: described pressure limiting valve is spring push type pressure limiting valve, and the pressure setting range is to be regulated confinement block, pressure limiting valve loam cake location-plate and pressure limiting valve loam cake locating slot and limited by pressure limiting valve main body positioning tooth, pressure.
More specifically, the multi-parameter alarm method of described family expenses electric pressure cooker further comprises: describedly add the lower end that voltage source is arranged in the level switch of electric pressure cooker, and the distance of 5cm is arranged apart from the bottom of a pan.
More specifically, the multi-parameter alarm method of described family expenses electric pressure cooker further comprises: the distribution of electrodes of described level switch also can be uneven distribution, wherein concrete distribution situation is close under upward dredging, the parallel digital signal of water level or the analog signal that water level has reached the upper limit or lower limit in the exportable electric pressure cooker of electrode.
Description of drawings
Below with reference to accompanying drawing embodiment of the present invention are described, wherein:
The flow chart of the multi-parameter alarm method of the family expenses electric pressure cooker that Fig. 1 illustrates according to an embodiment of the present invention.
The specific embodiment
Embodiment to the multi-parameter alarm method of family expenses electric pressure cooker of the present invention is elaborated below with reference to accompanying drawings.
Fig. 1 illustrates the flow chart of the multi-parameter alarm method of the family expenses electric pressure cooker that illustrates according to an embodiment of the present invention.Described multi-parameter alarm method comprises: controller is connected with display with temperature sensor, semiconductor gauge pressure sensor, level switch, speech play module respectively, the speech play module is connected with memory, controller is inner vapor temperature, internal pressure and actual water level according to the testing result of temperature sensor, semiconductor gauge pressure sensor, level switch, determines the strategy of reporting to the police.Concrete warning strategy is, is installed on the pressure limiting valve, is positioned at steam vent opposite temperature sensor, detects and the inner vapor temperature of output electric pressure cooker; Be positioned at the semiconductor gauge pressure sensor of a side of pressure limiting valve, it is a Wheatstone bridge on monocrystalline silicon piece spreads, and according to the differential voltage signal that the voltage inhibition effect produces, detects and export the internal pressure of electric pressure cooker; Be positioned at the level switch of electric pressure cooker bottom one side, adopt equidistant distribution of electrodes form, have or not the signal of telecommunication according to each electrode, detect and the interior actual water level of output electric pressure cooker; Respectively with temperature sensor, the semiconductor gauge pressure sensor, level switch, the controller that the speech play module is connected with display, receive described inner vapor temperature, internal pressure and actual water level, when internal pressure during greater than 180kpa, send the pressure anomaly signal, when internal pressure during greater than 300kpa, send the pressure hazard signal, when the inner vapor temperature is spent greater than 140, send the temperature anomaly signal, when the inner vapor temperature is spent greater than 170, send the temperature danger signal, and determine the not yet done or dry combustion method of food in the pot according to the detection of actual water level, send the not yet done signal of food or food dry combustion method signal; The speech play module receives the pressure anomaly signal of controller output, the pressure anomaly signal, the temperature anomaly signal, the temperature danger signal, the not yet done signal of food and food dry combustion method signal, and from memory, read and the pressure anomaly signal, the pressure anomaly signal, the temperature anomaly signal, the temperature danger signal, the not yet done signal of food and food dry combustion method signal the auditory tone cues file of correspondence are respectively play, simultaneously, display receives the pressure anomaly signal of controller output, the pressure anomaly signal, the temperature anomaly signal, the temperature danger signal, the not yet done signal of food and food dry combustion method signal, and in its display screen demonstration and pressure anomaly signal, the pressure anomaly signal, the temperature anomaly signal, the temperature danger signal, the not yet done signal of food and food dry combustion method signal be the warning message of correspondence respectively; Wherein, when controller sends pressure hazard signal, temperature anomaly signal or food dry combustion method signal, cut off the voltage source that adds of electric pressure cooker, when controller sends the not yet done signal of food, start electric pressure cooker and add voltage source; Wherein, memory, speech play module, display and controller can be positioned at the power control switch side of electric pressure cooker.
Wherein, the semiconductor gauge pressure sensor is a kind of sensing element that utilizes the piezoresistive effect of single crystal silicon semiconductor to make.Piezoresistive effect is the phenomenon (seeing piezoresistive transducer) that the resistivity of semiconductor crystal material material when the stressed generation of a certain direction is out of shape changes.Semiconductor gauge need stick on to measure the test specimen strain on the test specimen or stick on experiences tested external force indirectly on the elastic sensing element.Utilize the elastic sensing element of different configurations can measure mechanical quantity such as the stress of various objects, strain, pressure, moment of torsion, acceleration.Semiconductor gauge and resistance strain gage (are seen that resistance strain gage compares, are had sensitivity coefficient height (high approximately 50～100 times), advantages such as mechanical hysteresis is little, volume is little, little power consumption.The sensitivity coefficient opposite in sign of P type and N-type silicon is suitable for being connected into the same stress of adjacent two arm measures of electric bridge.Early stage semiconductor gauge adopts methods such as machining, chemical attack to make, and is called the bulk semiconductor foil gauge.Its shortcoming is that the temperature coefficient of resistance and sensitivity coefficient is big, non-linear big and dispersed big etc.This had once limited its application and development.Since the seventies, along with developing rapidly of semiconductor integrated circuit technique, diffused, extension type and film-type semiconductor gauge appear in succession, and above-mentioned shortcoming is necessarily overcome.
Wherein, restriction about temperature and pressure in the pressure cooker, according to existing GB, the operating pressure of aluminum pressure cooker (being the pressure at expulsion of pressure limiting valve) is 80KPA, Stainless steel pressure cooking-vessel has some can reach 90KPA's, the pressure release pressure of safety valve (when blast pipe stops up pressure limiting valve can't normal exhaust the time) is 160-180kpa, and the pressure at expulsion of security window (malfunctioningly being when pressure limiting valve and safety valve all stop up) is about 240kpa, and the limit breakdown pressure of pressure cooker is not less than 300kpa.Simultaneously, the temperature of pressure cooker the inside can reach between the 140-170 under the bigger situation of atmospheric pressure, and the too high safety valves that will cause are opened automatically.
In addition, the multi-parameter alarm method of described family expenses electric pressure cooker further comprises: described pressure limiting valve is spring push type pressure limiting valve, and the pressure setting range is to be regulated confinement block, pressure limiting valve loam cake location-plate and pressure limiting valve loam cake locating slot and limited by pressure limiting valve main body positioning tooth, pressure.Pressure limiting valve has been taked large aperture gas port anti-clogging and the quick-fried measure of spring clip erosion control, be arranged on the pot cover centre of electric pressure cooking saucepan, be connected by pressure limiting valve air guide screw spiral with high-pressure pot cover, an anti-blanking cover is arranged in the bottom of air guide screw rod, be provided with steam vent in the pressure limiting valve bottom part body of pot cover upside.
In addition, the multi-parameter alarm method of described family expenses electric pressure cooker further comprises: describedly add the lower end that voltage source is arranged in the level switch of electric pressure cooker, and the distance of 5cm is arranged apart from the bottom of a pan.Add the power supply that voltage source connects electric pressure cooker, be responsible for the supply of electric power of the inner heating pressurization of electric pressure cooker associated components.
In addition, the multi-parameter alarm method of described family expenses electric pressure cooker further comprises: the distribution of electrodes of described level switch also can be uneven distribution, wherein concrete distribution situation is close under upward dredging, the parallel digital signal of water level or the analog signal that water level has reached the upper limit or lower limit in the exportable electric pressure cooker of electrode.Number of poles is indefinite in the described level switch, can be 8 or 16, and is generally identical with controller processing figure place.
Adopt the multi-parameter alarm method of family expenses electric pressure cooker of the present invention, realized real-time detection and the warning of inner each parameter of electric pressure cooker, described each parameter specifically comprise water level in kettle temperature, pot inner pressure and the pot.Each parameter value in electric pressure cooker inside surpasses under the situation of predetermined threshold, be that the electric pressure cooker internal temperature is too high, pressure is excessive or during dry combustion method, in time notify the user to take measures, by outage or mode such as die, revise each parameter of electric pressure cooker inside, the normal use that keeps electric pressure cooker, the generation of serious accident such as stop to explode or on fire.
Be understandable that though the present invention with the preferred embodiment disclosure as above, yet above-described embodiment is not in order to limit the present invention.For any those of ordinary skill in the art, do not breaking away under the technical solution of the present invention scope situation, all can utilize the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention according to any simple modification, equivalent variations and the modification that technical spirit of the present invention is done above embodiment, all still belongs in the scope of technical solution of the present invention protection.
Claims (5)
1. the multi-parameter alarm method of a family expenses electric pressure cooker comprises:
Controller is connected with display with temperature sensor, semiconductor gauge pressure sensor, level switch, speech play module respectively, the speech play module is connected with memory, controller is inner vapor temperature, internal pressure and actual water level according to the testing result of temperature sensor, semiconductor gauge pressure sensor, level switch, determines the strategy of reporting to the police.
2. the multi-parameter alarm method of family expenses electric pressure cooker as claimed in claim 1 further comprises:
Be installed on the pressure limiting valve, be positioned at steam vent opposite temperature sensor, detect and export the inner vapor temperature of electric pressure cooker;
Be positioned at the semiconductor gauge pressure sensor of a side of pressure limiting valve, it is a Wheatstone bridge on monocrystalline silicon piece spreads, and according to the differential voltage signal that the voltage inhibition effect produces, detects and export the internal pressure of electric pressure cooker;
Be positioned at the level switch of electric pressure cooker bottom one side, adopt equidistant distribution of electrodes form, have or not the signal of telecommunication according to each electrode, detect and the interior actual water level of output electric pressure cooker;
Respectively with temperature sensor, the semiconductor gauge pressure sensor, level switch, the controller that the speech play module is connected with display, receive described inner vapor temperature, internal pressure and actual water level, when internal pressure during greater than 180kpa, send the pressure anomaly signal, when internal pressure during greater than 300kpa, send the pressure hazard signal, when the inner vapor temperature is spent greater than 140, send the temperature anomaly signal, when the inner vapor temperature is spent greater than 170, send the temperature danger signal, and determine the not yet done or dry combustion method of food in the pot according to the detection of actual water level, send the not yet done signal of food or food dry combustion method signal;
The speech play module receives the pressure anomaly signal of controller output, the pressure anomaly signal, the temperature anomaly signal, the temperature danger signal, the not yet done signal of food and food dry combustion method signal, and from memory, read and the pressure anomaly signal, the pressure anomaly signal, the temperature anomaly signal, the temperature danger signal, the not yet done signal of food and food dry combustion method signal the auditory tone cues file of correspondence are respectively play, simultaneously, display receives the pressure anomaly signal of controller output, the pressure anomaly signal, the temperature anomaly signal, the temperature danger signal, the not yet done signal of food and food dry combustion method signal, and in its display screen demonstration and pressure anomaly signal, the pressure anomaly signal, the temperature anomaly signal, the temperature danger signal, the not yet done signal of food and food dry combustion method signal be the warning message of correspondence respectively;
Wherein, when controller sends pressure hazard signal, temperature anomaly signal or food dry combustion method signal, cut off the voltage source that adds of electric pressure cooker, when controller sends the not yet done signal of food, start electric pressure cooker and add voltage source;
Wherein, memory, speech play module, display and controller are positioned at the power control switch side of electric pressure cooker.
3. the multi-parameter alarm method of family expenses electric pressure cooker as claimed in claim 2 further comprises:
Described pressure limiting valve is spring push type pressure limiting valve, and the pressure setting range is to be regulated confinement block, pressure limiting valve loam cake location-plate and pressure limiting valve loam cake locating slot and limited by pressure limiting valve main body positioning tooth, pressure.
4. the multi-parameter alarm method of family expenses electric pressure cooker as claimed in claim 2 further comprises:
Describedly add the lower end that voltage source is arranged in the level switch of electric pressure cooker, and the distance of 5cm is arranged apart from the bottom of a pan.
5. the multi-parameter alarm method of family expenses electric pressure cooker as claimed in claim 2 further comprises:
The distribution of electrodes of described level switch also is uneven distribution, and wherein concrete distribution situation is close under upward dredging, the parallel digital signal of water level or the analog signal that water level has reached the upper limit or lower limit in the electrode output electric pressure cooker.
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| CN201310133701.8A CN103190829B (en) | 2013-04-18 | 2013-04-18 | Multi-parameter alarming method for household electric pressure cooker |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104298585A (en) * | 2014-09-09 | 2015-01-21 | 北京优特捷信息技术有限公司 | Automatic alarming method and device |
| CN104688023A (en) * | 2013-12-04 | 2015-06-10 | 广东美的生活电器制造有限公司 | Pressure cooking tool and control method thereof |
| CN107232991A (en) * | 2017-08-12 | 2017-10-10 | 合肥全飞信息科技有限公司 | A kind of Intelligent cooker lid |
| CN108415309A (en) * | 2017-02-09 | 2018-08-17 | 佛山市顺德区美的电热电器制造有限公司 | A kind of control method and device of cooking equipment |
| CN108538363A (en) * | 2018-03-28 | 2018-09-14 | 珠海格力电器股份有限公司 | Method for determining cooking mode and cooking appliance |
| CN109008598A (en) * | 2018-08-01 | 2018-12-18 | 广东万嘉福电器有限公司 | A kind of the pressure alarm device and its application method of electric pressure cooking saucepan |
| CN109141866A (en) * | 2018-07-27 | 2019-01-04 | 宁波市产品质量监督检验研究院 | High-pressure cooker pressure limiting valve detection system |
| CN111981515A (en) * | 2019-05-21 | 2020-11-24 | 牛保明 | Intelligent energy-saving anti-overflow multifunctional gas stove |
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| CN109141866B (en) * | 2018-07-27 | 2020-04-10 | 宁波市产品质量监督检验研究院 | Pressure-limiting valve detection system of pressure cooker |
| CN109008598A (en) * | 2018-08-01 | 2018-12-18 | 广东万嘉福电器有限公司 | A kind of the pressure alarm device and its application method of electric pressure cooking saucepan |
| CN109008598B (en) * | 2018-08-01 | 2020-10-30 | 广东哥达科技有限公司 | Pressure alarm device for electric pressure cooker and use method thereof |
| CN111981515A (en) * | 2019-05-21 | 2020-11-24 | 牛保明 | Intelligent energy-saving anti-overflow multifunctional gas stove |
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| CN103190829B (en) | 2015-04-15 |
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