CN106658769A - Heating control method and electric heating device - Google Patents
Heating control method and electric heating device Download PDFInfo
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- CN106658769A CN106658769A CN201710035423.0A CN201710035423A CN106658769A CN 106658769 A CN106658769 A CN 106658769A CN 201710035423 A CN201710035423 A CN 201710035423A CN 106658769 A CN106658769 A CN 106658769A
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- heating
- silicon
- control
- controlled device
- temperature
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
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- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The invention discloses a heating control method and an electric heating device. The heating control method comprises the steps of 1, setting preset heating time, a target temperature and an allowed temperature deviation value, and enabling a silicon controlled rectifier device to control an electric heating element to start heating and perform time counting on heating time; 2, detecting an actual temperature of a cavity by utilizing a temperature sensor, judging whether an absolute value of a difference value between the actual temperature in the cavity and the target temperature is less than or equal to the allowed temperature deviation value, and if yes, going to the step 3, or otherwise, going to the step 4; 3, judging whether the heating time is equal to the preset heating time or not, and if yes, going to the step 5, or otherwise, going to the step 6; 4, enabling the silicon controlled rectifier device to control the electric heating element to continue to perform heating, and going to the step 2; 5, enabling the silicon controlled rectifier device to control the electric heating element to stop heating; 6, enabling the silicon controlled rectifier device to control the electric heating element to continue to perform heating to keep the absolute value of the difference value less than or equal to the allowed temperature deviation value, and going to the step 3. The stepless adjustment of the actual temperature of the cavity is realized.
Description
Technical field
The present invention relates to electric-heating technology field, more particularly, to a kind of method for heating and controlling and electric heating equipment.
Background technology
In the electric heating equipment of correlation technique, it is common to use heating wire is heated as heating to water.And it is electric
The temperature control of firing equipment is controlled by the break-make of electric wire circuit, and such control mode has temperature control essence
Degree is poor.Additionally, the frequent starting of heating wire invariably accompanies, the startup of the water pump of electric heating equipment, stopping, affecting heating wire
Service life.
The content of the invention
It is contemplated that at least solving one of technical problem present in correlation technique.For this purpose, the present invention needs offer one
Plant method for heating and controlling and electric heating equipment.
The method for heating and controlling of embodiment of the present invention is used for electric heating equipment, and the electric heating equipment includes inner bag, electricity
Thermal element and silicon-controlled device, the inner bag is formed with chamber, and the heating is arranged on the bottom of the inner bag, the electricity
Thermal element electrically connects the silicon-controlled device, and the method for heating and controlling includes：
Step one：Setting heating Preset Time, target temperature and permission temperature deviation value, and make the silicon-controlled device
Control the heating to begin to warm up and carry out timing to the heat time；
Step 2：The actual temperature of the chamber is detected using temperature sensor and judge the actual temperature of the within the chamber
With the absolute value of the difference between the target temperature whether less than or equal to the permission temperature deviation value, if going to step
Three, step 4 is gone to if not；
Step 3：Judge whether the heat time is equal to the heating Preset Time, if going to step 5, turn if not
To step 6；
Step 4：Make the silicon-controlled device control the heating to continue to heat, and go to step 2；
Step 5：Make the silicon-controlled device control the heating and stop heating；
Step 6：Make the silicon-controlled device control the heating to continue to heat to keep the absolute value of the difference
Less than or equal to the permission temperature deviation value, and go to step 3.
The method for heating and controlling of embodiment of the present invention, is carried out using silicon-controlled device to the heating power of heating
Adjust, realize chamber actual temperature it is stepless adjustable, and then can avoid frequently opening and closing heating and bringing control essence
The problem that degree is poor and the heating life-span is low.
In one embodiment, the step one also includes that receive user is instructed and added according to user instruction setting
Hot Preset Time and the target temperature, and the silicon-controlled device control heating is begun to warm up and is added to described
The hot time carries out timing.
In one embodiment, the method for heating and controlling includes：Using the difference as the first input quantity and with institute
The rate of change of difference is stated as the second input quantity, and the angle of flow of the silicon-controlled device is controlled based on fuzzy PID algorithm, so that
The silicon-controlled device controls the heating power of the heating and stops the silicon-controlled device control heating
Only heat.
In one embodiment, the electric heating equipment includes the photoelectrical coupler being connected with the silicon-controlled device,
The method for heating and controlling includes：The angle of flow of the silicon-controlled device is controlled by the photoelectrical coupler.
In one embodiment, the silicon-controlled device described in the step 4 control the heating plus hot merit
Rate controls the heating power of heating more than the silicon-controlled device described in step one.
In one embodiment, the heating is rare earth thick film element.
In one embodiment, in the step 2, the temperature signal that the temperature sensor is exported is carried out
The actual temperature of the chamber is obtained after amplifying, filter and digitizing.
In one embodiment, the electric heating equipment includes display screen, and the method for heating and controlling includes：Make described
Display screen shows the actual temperature of the target temperature and the chamber.
Electric heating equipment in embodiment of the present invention includes inner bag, heating, silicon-controlled device and control circuit, institute
State inner bag and be formed with chamber, the heating is arranged on the bottom of the inner bag, and the heating electrical connection is described controllable
Silicon device, the control circuit connects the heating and the silicon-controlled device, and the control circuit is used in control institute
When stating electric heating equipment work, implement the steps of：
Step one：Setting heating Preset Time, target temperature and permission temperature deviation value, and make the silicon-controlled device
Control the heating to begin to warm up and carry out timing to the heat time；
Step 2：The actual temperature of the chamber is detected using temperature sensor and judge the actual temperature of the within the chamber
With the absolute value of the difference between the target temperature whether less than or equal to the permission temperature deviation value, if going to step
Three, step 4 is gone to if not；
Step 3：Judge whether the heat time is equal to the heating Preset Time, if going to step 5, turn if not
To step 6；
Step 4：Make the silicon-controlled device control the heating to continue to heat, and go to step 2；
Step 5：Make the silicon-controlled device control the heating and stop heating；
Step 6：Make the silicon-controlled device control the heating continuation heating to be less than with the absolute value for keeping difference
Or equal to the permission temperature deviation value, and go to step 3.
The electric heating equipment of embodiment of the present invention, adjusts using silicon-controlled device to the heating power of heating
Section, realize chamber actual temperature it is stepless adjustable, and then the control accuracy for frequently opening and closing heating and bringing can be avoided
The poor problem low with the heating life-span.
In one embodiment, the electric heating equipment includes the button being connected with the control circuit, the button
For receive user instruction, the control circuit is used for according to the user instruction setting heating Preset Time and the mesh
Mark temperature, and the silicon-controlled device control heating is begun to warm up and is carried out timing to the heat time.
In one embodiment, the control circuit include control module, the control module using the difference as
First input quantity and using the rate of change of the difference as the second input quantity, and the controllable silicon is controlled based on fuzzy PID algorithm
The angle of flow of device, so that the silicon-controlled device controls the heating power of the heating and makes the silicon-controlled device control
Make the heating and stop heating.
In one embodiment, the control circuit includes the photoelectrical coupler being connected with the silicon-controlled device, institute
State control module and connect the photo-coupler, the control module is used to control the controllable silicon device by the photoelectrical coupler
The angle of flow of part.
In one embodiment, the control circuit described in the step 4 makes the silicon-controlled device control the electricity
The heating power of thermal element makes the silicon-controlled device control the heating of heating more than the control circuit described in step one
Power.
In one embodiment, the control circuit includes amplification/filter circuit and analog to digital conversion circuit, described to put
Greatly/filter circuit is used to that the temperature signal that the temperature sensor is exported to be amplified and be filtered, the analog-to-digital conversion electricity
Road is used for the actual temperature that digitlization is amplified with the filtered temperature signal and obtains the chamber.
In one embodiment, the electric heating equipment includes steam generating system, and the steam generating system includes
Evaporating pan, the evaporating pan is arranged on the bottom of the chamber, and the heating is arranged on the outer bottom of the evaporating pan.
The additional aspect and advantage of embodiment of the present invention will be set forth in part in the description, partly by from following
Become obvious in description, or recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from the description with reference to accompanying drawings below to embodiment
Substantially with it is easy to understand, wherein：
Fig. 1 is the schematic flow sheet of the method for heating and controlling of embodiment of the present invention.
Fig. 2 is the schematic perspective view of the electric heating equipment of embodiment of the present invention.
Fig. 3 is another schematic perspective view of the electric heating equipment of embodiment of the present invention.
Fig. 4 is the module diagram of the electric heating equipment of embodiment of the present invention.
Fig. 5 is the partial circuit schematic diagram of the control circuit of the electric heating equipment of embodiment of the present invention.
Fig. 6 is the module diagram of the control module of the electric heating equipment of embodiment of the present invention.
Fig. 7 is the structural representation of the heating of the electric heating equipment of embodiment of the present invention.
Main element symbol description：
Electric heating equipment 100；
Inner bag 10, chamber 11, heating 20, substrate 21, heat-conducting layer 22, heating circuit layer 23, silicon-controlled device 30, temperature
Degree sensor 31, photoelectrical coupler 32, display screen 40, control circuit 50, resistance 50a, button 51, control module 52, fuzzy push away
Reason module 521, PID controller 522, amplification/filter circuit 53, analog to digital conversion circuit 54, power supply 55, steam generating system 60,
Evaporating pan 61, water pump 62, water tank 63.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio
Same or similar element is represented to same or similar label eventually or the element with same or like function.Below by ginseng
The embodiment for examining Description of Drawings is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " is, based on orientation shown in the drawings or position relationship, to be for only for ease of
The description present invention and simplified description, rather than indicate or imply that the device or element of indication must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.Additionally, term " first ", " second " are only used for
Description purpose, and it is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.
Thus, " first " is defined, one or more feature can be expressed or be implicitly included to the feature of " second ".
In description of the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected.Can
Being to be mechanically connected, or electrically connect.Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can be with
Above-mentioned term concrete meaning in the present invention is understood as the case may be.
Fig. 1～Fig. 7 is seen also, the method for heating and controlling of embodiment of the present invention is used for electric heating equipment 100, and electricity adds
Hot equipment 100 includes inner bag 10, heating 20 and silicon-controlled device 30.Inner bag 10 is formed with chamber 11.Heating 20 sets
Put in the bottom of inner bag 10.Heating 20 electrically connects silicon-controlled device 30.Method for heating and controlling includes：
Step one：Setting heating Preset Time m1, target temperature t1 and permission temperature deviation value e1, and make controllable silicon device
The control heating 20 of part 30 begins to warm up and carries out timing to heat time m2；
Step 2：Using the detection chambers 11 of temperature sensor 31 actual temperature t2 and judge the actual temperature in chamber 11
Whether the absolute value of the difference e 2 between t2 and target temperature t1 is less than or equal to allows temperature deviation value e1, if going to step
Three, step 4 is gone to if not；
Step 3：Judge whether heat time m2 is equal to heating Preset Time m1, if going to step 5, step is gone to if not
Rapid six；
Step 4：Make the control heating 20 of silicon-controlled device 30 continue to heat, and go to step 2；
Step 5：The control heating 20 of silicon-controlled device 30 is set to stop heating；
Step 6：Make silicon-controlled device 30 control heating 20 continue heat with keep difference e 2 absolute value be less than or
Equal to permission temperature deviation value e1, and go to step 3.
The method for heating and controlling of embodiment of the present invention, using heating power of the silicon-controlled device 30 to heating 20
Be adjusted, realize chamber 11 actual temperature t2 it is stepless adjustable, and then can avoid frequently opening and closing heating 20 and band
The problem that control accuracy is poor and the life-span of heating 20 is low come.
Specifically, in embodiments of the present invention, in step 6, continue in the control heating 20 of silicon-controlled device 30
Heat to keep the absolute value of difference e 2 less than or equal to temperature deviation value e1 is allowed, heating 20 is in certain power work
Make, so that electric heating equipment 100 enters insulation.And when actual temperature t2 of chamber is less than the lower limit for setting, make controllable
The control heating 20 of silicon device 30 improves power to be continued to heat.So circulation, in electric heating equipment 100 heating of work is reached
After Preset Time m1, the control control heating 20 of silicon-controlled device 30 is set to stop heating.
In one embodiment, when step one also includes that receive user is instructed and preset according to user instruction setting heating
Between m1 and target temperature t1, and make silicon-controlled device 30 control heating 20 begin to warm up and heat time m2 counted
When.
Thus, user can be configured as the case may be to heating Preset Time m1 and target temperature t1, so improve
The operability of method for heating and controlling.
In one embodiment, method for heating and controlling is included using difference e 2 as the first input quantity and the change with difference e 2
Rate ec controls the angle of flow of silicon-controlled device 30 as the second input quantity based on fuzzy PID algorithm, so that silicon-controlled device
30 control heatings 20 heating powers and make silicon-controlled device 30 control heating 20 stop heating.
Thus, method for heating and controlling is capable of achieving the virtual value size to the electric current of heating 20 to automatically control to realize
Adjust automatically control to the heating power of heating 20, while the dual setting of the first input quantity and the second input quantity can be protected
Accuracy of the card based on fuzzy PID algorithm operation result, so as to ensure the degree of accuracy of the angle of flow for controlling silicon-controlled device 30.
Specifically, in chamber 11 when the difference e 2 between actual temperature t2 and target temperature t1 is larger, can be by adjusting
The angle of flow of section silicon-controlled device 30 suitably increases heating power to control heating 20, such that it is able to quick time reality
Now reduce the difference e 2 between actual temperature t2 and target temperature t1.Equally, actual temperature t2 in chamber 11 and target temperature
When difference e 2 between degree t1 is less, the angle of flow that can pass through to adjust silicon-controlled device 30 is suitably reduced with controlling heating 20
Heating power, so as to prevent actual temperature t2 from exceeding target temperature t1, it is ensured that the stability of the heating of heating 20.So heat
The reliability of control method is also improved.
In the present example, difference e 2=t1-t2, the rate of change of difference e 2Method for heating and controlling can pass through
Integrated circuit carries out fuzzy PID algorithm computing.
In one embodiment, electric heating equipment 100 includes the photoelectrical coupler 32 being connected with silicon-controlled device 30.Plus
Heat control method includes：The angle of flow of silicon-controlled device 30 is controlled by photoelectrical coupler 32.
Thus, the accuracy of the control of the angle of flow to silicon-controlled device 30 can be improved using photoelectrical coupler 32.
In one embodiment, the heating power of the control of silicon-controlled device 30 heating 20 is more than in step 4
Silicon-controlled device 30 controls the heating power of heating 20 in step one.
Thus, the absolute value of the difference e 2 between actual temperature t2 and target temperature t1 in chamber 11 is warm more than allowing
Degree deviation e1, so enables to heating 20 with larger heating power and proceeds heating, so as to shorten during heating
Between, further to improve the efficiency of heating surface of method for heating and controlling.
In one embodiment, heating 20 is rare earth thick film element.
Thus, under the conditions of equal heat-conducting area, heating 20 has bigger surface thermal load, while electric heating is first
The heat transfer efficiency of part 20 is higher, and more energy-conservation.
It should be noted that in some embodiments, heating 20 is rare earth thick film element, for example, rare earth thick film
The material of element includes rare earth oxide material, for example, please join Fig. 7, and in the present example, heating 20 includes heat conduction
Substrate 21, the heat-conducting layer 22 of insulation and heating circuit layer 23.The connecting substrate 21 of heat-conducting layer 22 and heating circuit layer 23.Heating circuit
Layer 23 includes multiple first resistor circuits 231 in arc-shaped and multiple linearly second resistance circuits 232.Multiple first
Resistance circuit 231 surrounds multiple second resistance circuits 232.Between multiple first resistor circuits 231 and multiple second resistance circuits 232
Every setting.The material of heat-conducting layer 22 includes rare earth oxide material, and the material of heating circuit layer 23 includes rare earth oxide material.
Thus, the resistance circuit distribution of heating circuit layer 23 is more uniform, the space of heat-conducting layer 22, such heating can be made full use of
20 heating is more uniform, can be prevented effectively from the phenomenon that hot-spot occurs in heating 20, so as to ensure that heating 20
Service life.
In one embodiment, in step 2, the temperature signal that temperature sensor 31 is exported is amplified, is filtered
Actual temperature t2 of chamber 11 is obtained after ripple and digitlization.
Thus, temperature signal can be strengthened, and interference can be eliminated, to ensure the degree of accuracy of signal transmission.
In one embodiment, electric heating equipment 100 includes display screen 40.Method for heating and controlling includes：Make display screen
Actual temperature t2 of 40 display target temperature t1 and chamber.
Thus, display screen 40 can improve the visuality of method for heating and controlling, so as to facilitate user, and Consumer's Experience is improved.
Fig. 1～Fig. 6 is seen also, the electric heating equipment 100 in embodiment of the present invention includes inner bag 10, heating
20th, silicon-controlled device 30 and control circuit 50.Inner bag 10 is formed with chamber 11.Heating 20 is arranged on the bottom of inner bag 10.
Heating 20 electrically connects silicon-controlled device 30.Control circuit 50 connects heating 20 and silicon-controlled device 30.Control circuit
50 are used to, when the work of electric heating equipment 100 is controlled, implement the steps of：
Step one：Setting heating Preset Time m1, target temperature t1 and permission temperature deviation value e1, and make controllable silicon device
The control heating 20 of part 30 begins to warm up and carries out timing to heat time m2；
Step 2：Using the detection chambers 11 of temperature sensor 31 actual temperature t2 and judge the actual temperature in chamber 11
Whether the absolute value of the difference e 2 between t2 and target temperature t1 is less than or equal to allows temperature deviation value e1, if going to step
Three, step 4 is gone to if not；
Step 3：Judge whether heat time m2 is equal to heating Preset Time m1, if going to step 5, step is gone to if not
Rapid six；
Step 4：Make the control heating 20 of silicon-controlled device 30 continue to heat, and go to step 2；
Step 5：The control heating 20 of silicon-controlled device 30 is set to stop heating；
Step 6：Make silicon-controlled device 30 control heating 20 continue heat with keep difference e 2 absolute value be less than or
Equal to permission temperature deviation value e1, and go to step 3.
The electric heating equipment 100 of embodiment of the present invention, hot merit is added using silicon-controlled device 30 to heating 20
Rate is adjusted, realize chamber 11 actual temperature t2 it is stepless adjustable, and then can avoid frequently opening and closing heating 20 and
The problem that control accuracy is poor and the life-span of heating 20 is low brought.
In the present example, silicon-controlled device 30 is bidirectional triode thyristor device.Thus, control is more accurate.
In one embodiment, electric heating equipment 100 includes the button 51 being connected with control circuit 50.Button 51 is used for
Receive user is instructed.Control circuit 50 is used for according to user instruction setting heating Preset Time m1 and target temperature t1, and make can
The control control heating 20 of silicon device 30 begins to warm up and carries out timing to heat time m2.
Thus, user can by as the case may be to heat Preset Time m1 and target temperature t1 be configured, so
Improve the setting of control circuit 50.
In one embodiment, control circuit 50 includes control module 52.Control module 52 is using difference e 2 as first
Input quantity and using the rate of change ec of difference e 2 as the second input quantity, and silicon-controlled device 30 is controlled based on fuzzy PID algorithm
The angle of flow, so that silicon-controlled device 30 controls the heating power of heating 20 and makes silicon-controlled device 30 control heating 20
Stop heating.
Thus, control circuit 50 realizes the automatic of the virtual value size of the electric current to heating 20 by control module 52
Control the adjust automatically to realize the heating power to heating 20 to control, while the first input quantity and the second input quantity set
Put the degree of accuracy of the angle of flow that can ensure that silicon-controlled device 30 is controlled based on fuzzy PID algorithm.
Specifically, in chamber 11 when the difference e 2 between actual temperature t2 and target temperature t1 is larger, control module
52 using the rate of change ec of difference e 2 and difference e 2 as input quantity, and carries out after fuzzy PID algorithm computing, can be controllable by adjusting
The angle of flow of silicon device 30 suitably increases heating power to control heating 20, such that it is able to realize reducing with the quick time
The difference e 2 of actual temperature t2 and target temperature t1.Equally, in chamber 11 between actual temperature t2 and target temperature t1
When difference e 2 is less, control module 52 carries out fuzzy PID algorithm using the rate of change ec of difference e 2 and difference e 2 as input quantity
After computing, the angle of flow that can pass through to adjust silicon-controlled device 30 suitably reduces heating power to control heating 20, so as to anti-
Only actual temperature t2 exceeds target temperature t1, it is ensured that the stability of the heating of heating 20.Which enhance control circuit 50 to transport
Capable reliability.
In the present example, difference e 2=t1-t2, the rate of change of difference e 2Control module 52 includes fuzzy
Reasoning module 521 and PID controller 522, the connection PID controller 522 of fuzzy reasoning module 521, the connection of PID controller 522 can
Control silicon device 30.Wherein, fuzzy reasoning module 521 is using the rate of change ec of difference e 2 and difference e 2 as input quantity, PID controller
522 equally can be using the rate of change ec of difference e 2 and difference e 2 as input quantity.So fuzzy reasoning module 521 and PID controller
522 combination can realize further optimal control, so as to ensure the accuracy of the signal exported by PID controller 522.
In one embodiment, control circuit 50 includes resistance 50a.Resistance 50a is connected to one end of heating 20
And between the output end of control module 52.
Thus, the setting of resistance 50a has protective effect to silicon-controlled device 30 and heating 20, control electricity can be prevented
The virtual value of the electric current on road 50 is excessive and burns out silicon-controlled device 30 or heating 20.In the present example, control circuit
50 are powered by power supply 55.
In one embodiment, control circuit 50 includes the photoelectrical coupler 32 being connected with silicon-controlled device 30, control
Module 52 connects photo-coupler 32, and control module 52 is used to control the angle of flow of silicon-controlled device 30 by photoelectrical coupler 32.
Thus, the accuracy of the control of the angle of flow to silicon-controlled device 30 can be improved using photoelectrical coupler 32.
In one embodiment, control circuit 50 makes adding for the control heating 20 of silicon-controlled device 30 in step 4
Thermal power makes silicon-controlled device 30 control the heating power of heating 20 more than the control circuit 50 in step one.
Thus, the absolute value of the difference e 2 between actual temperature t2 and target temperature t1 in chamber 11 is warm more than allowing
Degree deviation e1, so enables to heating 20 with larger heating power and proceeds heating, so as to shorten during heating
Between, further to improve the efficiency of heating surface of control circuit 50.
In one embodiment, heating 20 is rare earth thick film element.
Thus, under the conditions of equal heat-conducting area, heating 20 has bigger surface thermal load, while electric heating is first
The heat transfer efficiency of part 20 is higher, and more energy-conservation.
The structure of heating 20 can join corresponding part in above-mentioned method for heating and controlling, and here is no longer developed in details in.
In one embodiment, control circuit 50 includes amplification/filter circuit 53 and analog to digital conversion circuit 54.Amplify/
Filter circuit 53 is used to that the temperature signal that temperature sensor 31 is exported to be amplified and be filtered, and analog to digital conversion circuit 54 is used for
Actual temperature t2 of chamber 11 is amplified with filtered temperature signal and is obtained in digitlization.
Thus, temperature signal can be strengthened, and interference can be eliminated, to ensure the degree of accuracy of signal transmission.
In one embodiment, electric heating equipment 100 includes display screen 40.Control circuit 50 is used to show display screen 40
Show actual temperature t2 of target temperature t1 and chamber 11.
Thus, display screen 40 can improve the visuality of the running parameter of electric heating equipment 100, so as to facilitate user, and carry
High Consumer's Experience.
In one embodiment, electric heating equipment 100 includes steam generating system 60.Steam generating system 60 includes steaming
Quotation 61.Evaporating pan 61 is arranged on the bottom of chamber 11.Heating 20 is arranged on the outer bottom of evaporating pan 61.
Thus, when heating 10 works, heating 10 enables to the water in evaporating pan 61 and accelerates to be vaporized into steam,
And inner bag 10 is heated and is heated up, and this process can effectively be controlled via control circuit 50.
In the present example, electric heating equipment 100 can be electric steam furnace.Steam generating system 60 also include water pump 62 and
Water tank 63.Water pump 62 connects water tank 63 and evaporating pan 61.The concave shape of evaporating pan 61.Temperature sensor is provided with chamber 11
31。
When electric heating equipment 100 works, control circuit 50 can control water pump 62 and the water in water tank 63 introduced into evaporating pan
In 61, the control heating 20 of control circuit 50 produces heat, and then heating 20 conducts the heat of generation to evaporating pan
Water in 61, makes water be heated into high-temperature steam, then high-temperature steam diffusion in inner bag 10, so that the actual temperature of chamber 11
Degree t2 is gradually lifted, and then the actual temperature signal of chamber 11 is converted into corresponding electric signal by temperature sensor 31, and is fed back
To control circuit 50, then control circuit 50 is controlled to the actual temperature of chamber 11.
The absolute value of the difference e 2 between actual temperature t2 and target temperature t1 of chamber 11 is warm less than or equal to allowing
After degree deviation e1, the control heating 20 of control circuit 50 works in certain power, so as to electric heating equipment 100 is entered protect
Temperature, when inner bag 10 temperature less than setting lower limit when, control circuit 50 can control again heating 20 raising power after
Continuous heating.So circulation, after the heating Preset Time m1 that electric heating equipment 100 reaches work, control circuit 50 can be controlled
Heating 20 stops heating (closing).
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
The first and second feature directly contacts can be included, it is also possible to be not directly contact but by it including the first and second features
Between other characterisation contact.And, fisrt feature second feature " on ", " top " and " above " include that first is special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to
Simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only merely illustrative, and
And purpose does not lie in the restriction present invention.Additionally, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, between itself not indicating discussed various embodiments and/or arranging
Relation.Additionally, the invention provides various specific technique and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically enforcement
It is concrete that the description of mode ", " example ", " specific example " or " some examples " etc. means to combine embodiment or example is described
Feature, structure, material or feature are contained at least one embodiment of the present invention or example.In this manual, it is right
The schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, knot
Structure, material or feature can in an appropriate manner be combined in any one or more embodiments or example.
While embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that：
These embodiments can be carried out with various changes, modification, replacement in the case of principle and objective without departing from the present invention and become
Type, the scope of the present invention is limited by claim and its equivalent.
Claims (15)
1. a kind of method for heating and controlling, for electric heating equipment, the electric heating equipment includes inner bag, heating and controllable silicon
Device, the inner bag is formed with chamber, and the heating is arranged on the bottom of the inner bag, and the heating electrically connects institute
State silicon-controlled device, it is characterised in that the method for heating and controlling includes：
Step one：Setting heating Preset Time, target temperature and permission temperature deviation value, and control the silicon-controlled device
The heating begins to warm up and carries out timing to the heat time；
Step 2：The actual temperature of the chamber is detected using temperature sensor and judge actual temperature and the institute of the within the chamber
Whether state the absolute value of the difference between target temperature allows temperature deviation value less than or equal to described, if going to step 3,
Step 4 is gone to if not；
Step 3：Judge whether the heat time is equal to the heating Preset Time, if going to step 5, step is gone to if not
Rapid six；
Step 4：Make the silicon-controlled device control the heating to continue to heat, and go to step 2；
Step 5：Make the silicon-controlled device control the heating and stop heating；
Step 6：Make the silicon-controlled device control the heating continuation heating to be less than with the absolute value for keeping the difference
Or equal to the permission temperature deviation value, and go to step 3.
2. method for heating and controlling as claimed in claim 1, it is characterised in that the step one also includes：
Receive user is instructed and according to the user instruction setting heating Preset Time and the target temperature, and is made described controllable
Silicon device controls the heating and begins to warm up and carry out timing to the heat time.
3. method for heating and controlling as claimed in claim 1, it is characterised in that the method for heating and controlling includes：With the difference
Value is as the first input quantity and using the rate of change of the difference as the second input quantity and described based on fuzzy PID algorithm control
The angle of flow of silicon-controlled device, so that the silicon-controlled device controls the heating power of the heating and makes the controllable silicon
Device controls the heating and stops heating.
4. method for heating and controlling as claimed in claim 3, it is characterised in that the electric heating equipment includes and the controllable silicon
The photoelectrical coupler of device connection, the method for heating and controlling includes：The controllable silicon device is controlled by the photoelectrical coupler
The angle of flow of part.
5. method for heating and controlling as claimed in claim 1, it is characterised in that the silicon-controlled device control described in the step 4
The heating power for making the heating controls the heating power of heating more than the silicon-controlled device described in step one.
6. method for heating and controlling as claimed in claim 1, it is characterised in that the heating is rare earth thick film element.
7. method for heating and controlling as claimed in claim 1, it is characterised in that in the step 2, by the TEMP
The temperature signal of device output obtains the actual temperature of the chamber after being amplified, filter and digitizing.
8. method for heating and controlling as claimed in claim 1, it is characterised in that the electric heating equipment includes display screen, described
Method for heating and controlling includes：The display screen is set to show the actual temperature of the target temperature and the chamber.
9. a kind of electric heating equipment, it is characterised in that including inner bag, heating, silicon-controlled device and control circuit, it is described in
Courage is formed with chamber, and the heating is arranged on the bottom of the inner bag, and the heating electrically connects the controllable silicon device
Part, the control circuit connects the heating and the silicon-controlled device, and the control circuit is used to control the electricity
When firing equipment works, implement the steps of：
Step one：Setting heating Preset Time, target temperature and permission temperature deviation value, and control the silicon-controlled device
The heating begins to warm up and carries out timing to the heat time；
Step 2：The actual temperature of the chamber is detected using temperature sensor and judge actual temperature and the institute of the within the chamber
Whether state the absolute value of the difference between target temperature allows temperature deviation value less than or equal to described, if going to step 3,
Step 4 is gone to if not；
Step 3：Judge whether the heat time is equal to the heating Preset Time, if going to step 5, step is gone to if not
Rapid six；
Step 4：Make the silicon-controlled device control the heating to continue to heat, and go to step 2；
Step 5：Make the silicon-controlled device control the heating and stop heating；
Step 6：Make the silicon-controlled device control the heating to continue to heat to keep the absolute value of difference to be less than or wait
In the permission temperature deviation value, and go to step 3.
10. electric heating equipment as claimed in claim 9, it is characterised in that the electric heating equipment includes and the control electricity
The button of road connection, for receive user instruction, the control circuit is used to set institute according to the user instruction button
Heating Preset Time and the target temperature are stated, and makes the silicon-controlled device control the heating and begun to warm up and to institute
Stating the heat time carries out timing.
11. electric heating equipments as claimed in claim 9, it is characterised in that the control circuit includes control module, the control
Molding block using the difference as the first input quantity and using the rate of change of the difference as the second input quantity, and based on fuzzy
Pid algorithm controls the angle of flow of the silicon-controlled device, so that the silicon-controlled device controls the heating plus hot merit
Rate and make the silicon-controlled device control the heating to stop heating.
12. electric heating equipments as claimed in claim 11, it is characterised in that the control circuit includes and the controllable silicon device
The photoelectrical coupler of part connection, the control module connects the photo-coupler, and the control module is used to pass through the photoelectricity
Coupler controls the angle of flow of the silicon-controlled device.
13. electric heating equipments as claimed in claim 9, it is characterised in that control circuit makes institute described in the step 4
State the heating power of the silicon-controlled device control heating makes the controllable silicon more than the control circuit described in step one
Device controls the heating power of heating.
14. electric heating equipments as claimed in claim 9, it is characterised in that the control circuit include amplifications/filter circuit with
Analog to digital conversion circuit, the amplification/filter circuit be used for by the temperature sensor export temperature signal be amplified and
Filtering, analog-digital conversion circuit as described is used for the reality that digitlization is amplified with the filtered temperature signal and obtains the chamber
Border temperature.
15. electric heating equipments as claimed in claim 9, it is characterised in that the electric heating equipment includes steam generating system,
The steam generating system includes evaporating pan, and the evaporating pan is arranged on the bottom of the chamber, and the heating is arranged on
On the outer bottom of the evaporating pan.
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| CN201710035423.0A CN106658769B (en) | 2017-01-18 | 2017-01-18 | Heating control method and electric heating equipment |
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Cited By (1)
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| CN111356511A (en) * | 2018-03-14 | 2020-06-30 | 株式会社岛津制作所 | Supercritical fluid separation device |
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| CN106658769B (en) | 2020-06-05 |
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