CN104812116B - A kind of intelligent control microwave heater - Google Patents
A kind of intelligent control microwave heater Download PDFInfo
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- CN104812116B CN104812116B CN201510213920.6A CN201510213920A CN104812116B CN 104812116 B CN104812116 B CN 104812116B CN 201510213920 A CN201510213920 A CN 201510213920A CN 104812116 B CN104812116 B CN 104812116B
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Abstract
The invention discloses a kind of intelligent control microwave heater, including heater and intelligent controlling device, heater includes microwave generator, microwave heating chamber, heat-conducting medium, intelligent controlling device includes that control circuit, negative tempperature coefficient thermistor, power supply, electrical switch and external power supply, control circuit, negative tempperature coefficient thermistor and power supply connect composition one Guan Bi circuit；Control circuit includes current measurement module, counting module and control module, current measurement module is for measuring the electric current of Guan Bi circuit, counting module for calculating current measurement module measurement to electric current reach the number of times of default threshold value, control module disconnects for controlling electrical switch when counting module reaches predetermined number of times.The present invention uses microwave heating, the resistance efficiency of heating surface that thermal efficiency ratio is traditional is high, and by arranging intelligent controlling device, efficiently solve because forgeing or unattended causing the hydronic problem of electric heater, it is to avoid the loss that electric heater is caused by circulating-heating.
Description
Technical field
The present invention relates to a kind of electric heater, be specifically related to a kind of intelligent control microwave heater.
Background technology
Energy shortage has become the major issue of restriction China economic development.Consume at current China primary energy
In composition, coal has just accounted for 66%.At present, the heating system that China dominates is still that with fire coal
Being main central heating, in annual coal consumption, heating consumption coal account for again nearly half, simultaneously it
Drawback displays the most day by day: be first the waste energy and resource, such as coal resources, water resource and
The heat energy lost in transmitting procedure, next to that pollute environment.Therefore, innovate heating system, use new heat
Source, for reduce energy resource consumption, protect environment, build a conservation-minded society significant.
Electric heater is the high-quality long-life electric heating equipment of a kind of international popular, and it is to convert electrical energy into
The process of heat energy.After finding that power supply can occur heat effect by wire, the most many inventions in the world
Family engages in research and the manufacture of various electric heating appliance.Electric heater is mainly used in the liquid to flowing, gaseous state
The intensification of medium, it is incubated, heats, when adding thermal medium under pressure by electric heater heating chamber,
Use thermodynamic fluid principle to take away produced huge heat in heating work equably, make to be heated
Medium temperature reaches user's technological requirement.The most relatively common electric heater mode of heating is resistance heating,
The Joule effect utilizing electric current converts electric energy into heat energy to add hot object, be generally divided into the heating of direct resistance and
Indirect resistance heats.Common Resistant heating, ceramic heater and electrical coil resistance heating, quartz ampoule add
Resistance heating is broadly fallen in pyrogen reason.
But, the heating of resistance type heater is the most original, so the thermal efficiency is also worst, the hottest
Efficiency only has about 70 percent, and substantial amounts of heat energy is dispersed in air.Meanwhile, current existing electricity adds
Hot device, it is possible to automatic shutdown circuit stops heating when temperature reaches uniform temperature, and can be less than in temperature
Heating is restarted during uniform temperature, but, owing to electric heater is long for heat time heating time, people often forget
Remembering the electric heater heated, this results in temperature decline in a period of time after electric heater heats,
Can reheat again, while expending electric energy, also can shorten the service life of electric heater, and have generation fire
The potential safety hazards such as calamity.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of intelligent control microwave heater, including intelligence
Can control device and heater, described heater includes microwave generator, microwave heating chamber, heat-conducting medium,
Described intelligent controlling device includes control circuit, electrical switch, power supply, external power supply and negative temperature coefficient heat
Quick resistance；Wherein, one end of described microwave generator connects described electrical switch, and the other end connects described micro-
Wave heating chamber, described microwave heating intracavity has described heat-conducting medium, and described microwave generator produces after powered up
Raw microwave, is heated described heat-conducting medium by described microwave heating chamber；One end of described electrical switch connects
External power supply, the other end connects described heater；Described power supply and described negative tempperature coefficient thermistor and institute
State control circuit to connect, and be connected into a closed-loop path；
Described control circuit includes current measurement module, counting module and control module, described current measurement mould
Block is for measuring the electric current of described closed-loop path, and described counting module is used for calculating described current measurement module and surveys
The electric current measured reaches the number of times of default threshold value, and described control module is for surveying at described current measurement module
The electric current measured reaches to control during predetermined value connection or the disconnection of electrical switch, and at described counting module
Counting reach to control described electrical switch during predetermined threshold value and remain open.
Specifically, described controller is programmable logic controller (PLC).
Alternatively, described power supply is DC source, and described external power supply is alternating current power supply.
Preferably, described microwave generator includes fairing, microwave tube, and described fairing is for by institute
The alternating current stating external power supply is changed into unidirectional current, and described microwave tube is used for converting electric energy into microwave energy.
Further, described fairing is electron tube.
Preferably, described fairing is crystal diode.
Alternatively, described intelligent control microwave heater also includes alarm module, described alarm module respectively with
Described power supply and control circuit connect, for described current measurement module measurement to electric current reach default
Alarm signal is sent during threshold value.
Preferably, for there is alarm signal when described counting module reaches predetermined number of times in described alarm module
Number.
Specifically, the data automatic clear after a loss of power of described counting module storage.
Alternatively, described control module is logic circuit.
The application present invention, has the advantages that
The present invention, by arranging intelligent controlling device, judges circulating-heating number of times by counting module, and is adding
Cut off heating power supply by the disconnection of control electrical switch when hot number of times reaches a certain amount of, thus effectively solve
Determine because forgeing or unattended causing the hydronic problem of electric heater, it is to avoid circulating-heating is to electrical heating
The loss that device causes, and electric energy, energy-conserving and environment-protective can be saved.
The heater that the present invention is arranged is microwave applicator, and external power supply makes the microwave tube of microwave generator work,
Converting electrical energy into microwave energy, microwave passes through microwave heating chamber, heats the heat-conducting medium of microwave heating intracavity,
This mode of heating is higher than the thermal efficiency that resistance heats, and safety and reliability.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art and advantage, below will
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that under,
Accompanying drawing during face describes is only some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structured flowchart of the intelligent control microwave heater that the embodiment of the present invention one, two provides.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
Property work on the premise of the every other embodiment that obtained, broadly fall into the scope of protection of the invention.
Embodiment one:
Refer to Fig. 1, embodiments provide a kind of intelligent control microwave heater, including Based Intelligent Control
Device and heater, described heater includes microwave generator, microwave heating chamber, heat-conducting medium, described intelligence
Device can be controlled and include control circuit, electrical switch, power supply, external power supply and negative tempperature coefficient thermistor；
Wherein, one end of described microwave generator connects described electrical switch, and the other end connects described microwave heating chamber,
Described microwave heating intracavity has described heat-conducting medium, and described microwave generator produces microwave after powered up, logical
Cross described microwave heating chamber described heat-conducting medium is heated；One end of described electrical switch connects external power supply,
The other end connects described heater；Described power supply and described negative tempperature coefficient thermistor and described control circuit
Connect, and be connected into a closed-loop path；
Described control circuit includes current measurement module, counting module and control module, described current measurement mould
Block is for measuring the electric current of described closed-loop path, and described counting module is used for calculating described current measurement module and surveys
The electric current measured reaches the number of times of default threshold value, and described control module is for surveying at described current measurement module
The electric current measured reaches to control during predetermined value connection or the disconnection of electrical switch, and at described counting module
Counting reach to control described electrical switch during predetermined threshold value and remain open.
Negative tempperature coefficient thermistor is with metal-oxides such as manganese, cobalt, nickel and copper as main material, uses
Ceramic process is fabricated by, and these metal oxide materials all have semiconductor property, because in conduction side
The semi-conducting material such as all fours germanium, silicon in formula.When temperature is low, the carrier (electricity of these oxide materials
Son and hole) number is few, so its resistance value is higher；Along with the rising of temperature, carrier number increases,
So resistance value reduces.
When normal circuit operation, negative tempperature coefficient thermistor temperature is close with room temperature, resistance is higher, string
Connection causes the electric current passed through less in circuit；And when temperature is higher, when exceeding switch temperature, resistance moment
Reducing, the electric current in loop increases rapidly, and after critesistor action, in circuit, electric current has had and significantly carries
Rise.Use negative tempperature coefficient thermistor that temperature signal can be converted to the signal of telecommunication, thus realize controlling electricity
Roadbed is in the control of temperature.
The temperature of electric heater is divided into low temperature to open temperature and high temperature cut-off temperature, and high temperature cut-off temperature refers to be higher than
During predetermined temperature such as 60 DEG C, stop the temperature of heating, when ending temperature when reaching a high temperature, correspondingly, negative
Temperature coefficient thermistor resistance is reduced to certain value, and the electric current in described closed-loop path also brings up to certain value,
Control module in control circuit controls electrical switch disconnecting circuit, and electric heater stops heating；Low temperature is opened
Temperature refers to less than predetermined temperature, during such as 20 DEG C, the temperature that electric heater begins to warm up.Open when reaching low temperature
When opening temperature, correspondingly, the critesistor resistance of negative temperature coefficient increases to certain value, the electricity of Guan Bi circuit
Stream is also reduced to certain value, and the control module in control circuit controls electrical switch and connects circuit, electric heater
Begin to warm up.When current measurement module measures the temperature such as high temperature cut-off temperature that electric current reaches predetermined, meter
The count value of digital-to-analogue block adds one, when the count value of counting module reaches predetermined value such as three, and control circuit
In control module control electrical switch remain open, electric heater is no longer heat up.
Specifically, described controller is programmable logic controller (PLC).
Alternatively, described power supply is DC source, and described external power supply is alternating current power supply.
Preferably, described microwave generator includes fairing, microwave tube, and described fairing is for by institute
The alternating current stating external power supply is changed into unidirectional current, and described microwave tube is used for converting electric energy into microwave energy.
Further, described fairing is electron tube.
Alternatively, described intelligent control microwave heater also includes alarm module, described alarm module respectively with
Described power supply and control circuit connect, for described current measurement module measurement to electric current reach default
Alarm signal is sent during threshold value.
Preferably, for there is alarm signal when described counting module reaches predetermined number of times in described alarm module
Number.
Specifically, the data automatic clear after a loss of power of described counting module storage.
Alternatively, described control module is logic circuit.
The application present invention, has the advantages that the present invention uses microwave heating, and thermal efficiency ratio passes
The resistance efficiency of heating surface of system is high, and by arranging intelligent controlling device, judges circulating-heating by counting module
Number of times, and cut off heating power supply when heating times reaches a certain amount of by the disconnection of control electrical switch,
Thus efficiently solve because forgeing or unattended causing the hydronic problem of electric heater, it is to avoid circulation
The loss that electric heater is caused by heating, and electric energy, energy-conserving and environment-protective can be saved.
Embodiment two:
Refer to Fig. 1, embodiments provide a kind of intelligent control microwave heater, including Based Intelligent Control
Device and heater, described heater includes microwave generator, microwave heating chamber, heat-conducting medium, described intelligence
Device can be controlled and include control circuit, electrical switch, power supply, external power supply and negative tempperature coefficient thermistor；
Wherein, one end of described microwave generator connects described electrical switch, and the other end connects described microwave heating chamber,
Described microwave heating intracavity has described heat-conducting medium, and described microwave generator produces microwave after powered up, logical
Cross described microwave heating chamber described heat-conducting medium is heated；One end of described electrical switch connects external power supply,
The other end connects described heater；Described power supply and described negative tempperature coefficient thermistor and described control circuit
Connect, and be connected into a closed-loop path；
Described control circuit includes current measurement module, counting module and control module, described current measurement mould
Block is for measuring the electric current of described closed-loop path, and described counting module is used for calculating described current measurement module and surveys
The electric current measured reaches the number of times of default threshold value, and described control module is for surveying at described current measurement module
The electric current measured reaches to control during predetermined value connection or the disconnection of electrical switch, and at described counting module
Counting reach to control described electrical switch during predetermined threshold value and remain open.
Negative tempperature coefficient thermistor is with metal-oxides such as manganese, cobalt, nickel and copper as main material, uses
Ceramic process is fabricated by, and these metal oxide materials all have semiconductor property, because in conduction side
The semi-conducting material such as all fours germanium, silicon in formula.When temperature is low, the carrier (electricity of these oxide materials
Son and hole) number is few, so its resistance value is higher；Along with the rising of temperature, carrier number increases,
So resistance value reduces.
When normal circuit operation, negative tempperature coefficient thermistor temperature is close with room temperature, resistance is higher, string
Connection causes the electric current passed through less in circuit；And when temperature is higher, when exceeding switch temperature, resistance moment
Reducing, the electric current in loop increases rapidly, and after critesistor action, in circuit, electric current has had and significantly carries
Rise.Use negative tempperature coefficient thermistor that temperature signal can be converted to the signal of telecommunication, thus realize controlling electricity
Roadbed is in the control of temperature.
The temperature of electric heater is divided into low temperature to open temperature and high temperature cut-off temperature, and high temperature cut-off temperature refers to be higher than
During predetermined temperature such as 60 DEG C, stop the temperature of heating, when ending temperature when reaching a high temperature, correspondingly, negative
Temperature coefficient thermistor resistance is reduced to certain value, and the electric current in described closed-loop path also brings up to certain value,
Control module in control circuit controls electrical switch disconnecting circuit, and electric heater stops heating；Low temperature is opened
Temperature refers to less than predetermined temperature, during such as 20 DEG C, the temperature that electric heater begins to warm up.Open when reaching low temperature
When opening temperature, correspondingly, the critesistor resistance of negative temperature coefficient increases to certain value, the electricity of Guan Bi circuit
Stream is also reduced to certain value, and the control module in control circuit controls electrical switch and connects circuit, electric heater
Begin to warm up.When current measurement module measures the temperature such as high temperature cut-off temperature that electric current reaches predetermined, meter
The count value of digital-to-analogue block adds one, when the count value of counting module reaches predetermined value such as three, and control circuit
In control module control electrical switch remain open, electric heater is no longer heat up.
Specifically, described controller is programmable logic controller (PLC).
Alternatively, described power supply is DC source, and described external power supply is alternating current power supply.
Preferably, described microwave generator includes fairing, microwave tube, and described fairing is for by institute
The alternating current stating external power supply is changed into unidirectional current, and described microwave tube is used for converting electric energy into microwave energy.
Further, described fairing is crystal diode.
Alternatively, described intelligent control microwave heater also includes alarm module, described alarm module respectively with
Described power supply and control circuit connect, for described current measurement module measurement to electric current reach default
Alarm signal is sent during threshold value.
Preferably, for there is alarm signal when described counting module reaches predetermined number of times in described alarm module
Number.
Specifically, the data automatic clear after a loss of power of described counting module storage.
Alternatively, described control module is logic circuit.
The application present invention, has the advantages that the present invention uses microwave heating, and thermal efficiency ratio passes
The resistance efficiency of heating surface of system is high, and by arranging intelligent controlling device, judges circulating-heating by counting module
Number of times, and cut off heating power supply when heating times reaches a certain amount of by the disconnection of control electrical switch,
Thus efficiently solve because forgeing or unattended causing the hydronic problem of electric heater, it is to avoid circulation
The loss that electric heater is caused by heating, and electric energy, energy-conserving and environment-protective can be saved.
The above is the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, this
A little improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. an intelligent control microwave heater, it is characterised in that include that Based Intelligent Control fills
Putting and heater, described heater includes microwave generator, microwave heating chamber, heat-conducting medium,
Described intelligent controlling device includes control circuit, electrical switch, power supply, external power supply and subzero temperature
Degree coefficient resistance；Wherein,
One end of described microwave generator connects described electrical switch, and the other end connects described microwave
Heating chamber, described microwave heating intracavity has described heat-conducting medium, and described microwave generator is logical
Produce microwave after electricity, by described microwave heating chamber, described heat-conducting medium is heated；
One end of described electrical switch connects external power supply, and the other end connects described heater；
Described power supply is connected with described negative tempperature coefficient thermistor and described control circuit, and goes here and there
It is unified into a closed-loop path；
Described control circuit includes current measurement module, counting module and control module, described electricity
Flow measurement module is for measuring the electric current of described closed-loop path, and described counting module is used for calculating institute
State current measurement module measurement to electric current reach the number of times of default threshold value, described control module
For described current measurement module measurement to electric current reach predetermined value time control electrical switch
Connection or disconnection, and for controlling when the counting of described counting module reaches predetermined number of times
Described electrical switch remains open.
A kind of intelligent control microwave heater the most according to claim 1, its feature exists
In, described controller is programmable logic controller (PLC).
A kind of intelligent control microwave heater the most according to claim 1 and 2, it is special
Levying and be, described power supply is DC source, and described external power supply is alternating current power supply.
A kind of intelligent control microwave heater the most according to claim 3, its feature exists
In, described microwave generator includes fairing, microwave tube, and described fairing is for by institute
The alternating current stating external power supply is changed into unidirectional current, and described microwave tube is used for converting electric energy into micro-
Wave energy.
A kind of intelligent control microwave heater the most according to claim 4, its feature exists
In, described fairing is electron tube.
A kind of intelligent control microwave heater the most according to claim 4, its feature exists
In, described fairing is crystal diode.
7. according to a kind of intelligent control microwave heater according to any one of claim 4-6,
It is characterized in that, described intelligent control microwave heater also includes alarm module, described warning mould
Block is connected with described power supply and control circuit respectively, for arriving in described current measurement module measurement
Electric current reach to send alarm signal during default threshold value.
A kind of intelligent control microwave heater the most according to claim 7, its feature exists
In, described alarm module for there is alarm signal when described counting module reaches predetermined number of times
Number.
A kind of intelligent control microwave heater the most according to claim 8, its feature exists
In, the data automatic clear after a loss of power of described counting module storage.
The most according to claim 8 or claim 9, a kind of intelligent control microwave heater, it is special
Levying and be, described control module is logic circuit.
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| CN201510213920.6A CN104812116B (en) | 2015-04-29 | 2015-04-29 | A kind of intelligent control microwave heater |
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| CN201510213920.6A CN104812116B (en) | 2015-04-29 | 2015-04-29 | A kind of intelligent control microwave heater |
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| CN104799997B (en) * | 2015-04-29 | 2016-11-30 | 韦政鸿 | SCM Based microwave heating Diannuanbao |
| CN109647865A (en) * | 2019-01-11 | 2019-04-19 | 南开大学 | A kind of organic waste anaerobic low temperature pyrogenation device and application |
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| KR100453242B1 (en) * | 2002-10-10 | 2004-10-15 | 삼성전자주식회사 | Microwave oven and control method thereof |
| JP2009198013A (en) * | 2008-02-19 | 2009-09-03 | Panasonic Corp | Cooking heater |
| JP2009301764A (en) * | 2008-06-11 | 2009-12-24 | Denso Corp | Microwave heating device and microwave heating method |
| DE112011102785T5 (en) * | 2010-08-23 | 2013-05-29 | Mitsubishi Electric Corporation | Kochheizvorrichtung |
| CN102573156B (en) * | 2010-12-15 | 2013-11-20 | 深圳市鑫汇科电子有限公司 | System On Chip (SOC) chip special for electromagnetic induction heating controller |
| CN103916997B (en) * | 2013-01-05 | 2016-02-10 | 美的集团股份有限公司 | Electromagnetic induction heater and control method thereof |
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Effective date of registration: 20170627 Address after: 225300, room 1, building 166, 201 Changxin Road, Jiulong Town, Hailing District, Jiangsu, Taizhou Patentee after: Taizhou Haixin hi tech Investment & Development Co.,Ltd. Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20170627 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 545001, room 2, unit 12, building 213, 502 south water road, Yufeng District, the Guangxi Zhuang Autonomous Region, Liuzhou Patentee before: Wei Daoyi |