CN205787764U - A kind of Multifunctional heating magnetic stirrer - Google Patents
A kind of Multifunctional heating magnetic stirrer Download PDFInfo
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- CN205787764U CN205787764U CN201620619166.6U CN201620619166U CN205787764U CN 205787764 U CN205787764 U CN 205787764U CN 201620619166 U CN201620619166 U CN 201620619166U CN 205787764 U CN205787764 U CN 205787764U
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Abstract
This utility model is specifically related to a kind of Multifunctional heating magnetic stirrer, including direct current generator, electric heating plate and stirring container, it is characterized in that, also include: PIC single chip microcomputer and the temperature sensor electrically connected with described PIC single chip microcomputer respectively, tachogenerator, clock circuit, liquid crystal display, buzzer, wherein, temperature and/or the temperature of electric heating plate of mixture in container is stirred described in described temperature sensor measurement, and described temperature is exported to PIC single chip microcomputer, the rotating speed of described direct current generator measured by described tachogenerator, and described rotating speed is exported to PIC single chip microcomputer, described PIC single chip microcomputer controls described liquid crystal display and shows the heating-up temperature of described electric heating plate, heat duration and/or stirring duration and the rotating speed of described direct current generator, and control described buzzer warning.By the technical solution of the utility model, can realize heating timing, overheating warning and mixing speed and the measurement of heating-up temperature and display.
Description
Technical field
This utility model relates to magnetic agitation technical field, is specifically related to a kind of Multifunctional heating magnetic stirrer.
Background technology
Magnetic stirrer is the Laboratory Instruments for liquid mixing, is mainly used in stirring or the simultaneously low thickness of heated and stirred
The liquid of degree or solidliquid mixture.Its ultimate principle is to utilize the principle that the same sex in magnetic field is repelled each other, there is a natural attraction between the sexes, uses magnetic field to push away
Dynamic it be placed on magnetic stirrer in blender and carry out circumferential running, thus reach the purpose of agitated liquid.Magnetic stirrer
There is the small-power blender of below motor 5W by power difference and have the high-power mixer of more than motor 5W.
General simple magnetic stirrer is just with common DC voltage regulator circuit, the most substantially regulates electric moter voltage,
Controlling rotating speed, because showing without rotating speed, the sample required for speed of agitator just cannot realize accurately controlling speed.Heating
Part is also common regulating circuit plate, manually regulates the voltage swing of 220V, and the power that 200-600W adds hot plate is carried out
Regulation, shows without temperature, regulates the most poor.And although there is on market rotating speed and show and the magnetic stirrer that shows of temperature,
Circuit structure is complicated, expensive.
Utility model content
In view of this, the purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of Multifunctional heating magnetic
Power blender, it is achieved heating timing, overheating warning and mixing speed and the measurement of heating-up temperature and display.
For realizing object above, this utility model adopts the following technical scheme that
A kind of Multifunctional heating magnetic stirrer, including direct current generator, electric heating plate and stirring container, also includes: PIC is mono-
Sheet machine and the temperature sensor electrically connected with described PIC single chip microcomputer respectively, tachogenerator, clock circuit, liquid crystal display, honeybee
Ring device, wherein,
Temperature and/or the temperature of electric heating plate of mixture in container is stirred described in described temperature sensor measurement, and will
Described temperature exports to PIC single chip microcomputer, and described tachogenerator is measured the rotating speed of described direct current generator, and exported by described rotating speed
To PIC single chip microcomputer, when the described PIC single chip microcomputer described liquid crystal display of control shows the heating-up temperature of described electric heating plate, heating
Grow and/or stir duration and the rotating speed of described direct current generator, and controlling described buzzer warning.
Preferably, described Multifunctional heating magnetic stirrer, also include direct current generator regulating circuit, described direct current generator is adjusted
Volt circuit includes: direct current generator pressure regulation unit and the DC source and first electrically connected with described direct current generator pressure regulation unit respectively
Manual voltage regulation potentiometer；
The outfan of described direct current generator pressure regulation unit electrically connects with described direct current generator, at first manual pressure regulation electricity
Under the control of position device, regulation output is to the voltage swing of described direct current generator, to control the rotating speed of described direct current generator.
Preferably, described Multifunctional heating magnetic stirrer, also include exchange heating regulating circuit, described exchange heating is adjusted
Volt circuit includes: exchange is heated pressure regulation unit and exchanges, with described, the second manual voltage regulation current potential that heating pressure regulation unit electrically connects
Device, wherein,
Described AC voltage adjusting unit is provided with 220V alternating current input interface, the outfan of described AC voltage adjusting unit and institute
Stating electric heating plate electrical connection, under the control of the second manual voltage regulation potentiometer, regulation output is to the electricity of described electric heating plate
Pressure size, to control heating power and the temperature of described electric heating plate.
Preferably, described Multifunctional heating magnetic stirrer, also include that current-amplifying driving circuit, described Current amplifier drive
Galvanic electricity road includes large driven current density chip ULN2003 or audion, and described buzzer is active buzzer,
Described current-amplifying driving circuit is connected between described active buzzer and described PIC single chip microcomputer, described electric current
Amplification driving circuit is for amplifying the output electric current of described PIC single chip microcomputer, to drive described active buzzer to work.
Preferably, described Multifunctional heating magnetic stirrer, described direct current generator electrically connects with described PIC single chip microcomputer, institute
State electric heating plate to be electrically connected with described PIC single chip microcomputer by relay.
Preferably, described Multifunctional heating magnetic stirrer, also include the speed and temp regulating electrically connected with described PIC single chip microcomputer
Button and LED charactron, described LED charactron turns by the direct current generator of described speed and temp regulating key-press input is default for display
Speed and electric heating plate preset heating-up temperature.
Preferably, described Multifunctional heating magnetic stirrer, also include the infrared signal electrically connected with described PIC single chip microcomputer
Receptor, described infrared signal receiver and IR remote controller wireless connections.
Preferably, described Multifunctional heating magnetic stirrer, also include electrical level transferring chip MAX232 and serial line interface, institute
Stating serial line interface to be electrically connected with described PIC single chip microcomputer by described electrical level transferring chip MAX232, described serial line interface is for real
Existing data transmission between described PIC single chip microcomputer and external computer.
Preferably, described tachogenerator includes: Hall element, photoelectric sensor and/or photoelectric encoder.
Preferably, the model of described PIC single chip microcomputer is PIC18F4520, and the model of described temperature sensor is digital temperature
Sensor DS18B20, the model of described liquid crystal display is LCD 1602.
This utility model uses above technical scheme, at least possesses following beneficial effect:
As shown from the above technical solution, this Multifunctional heating magnetic stirrer that this utility model provides, passes through temperature
The temperature of mixture and/or the temperature of electric heating plate in sensor measurement stirring container, direct current generator measured by tachogenerator
Rotating speed, PIC single chip microcomputer, according to temperature sensor and the output signal of tachogenerator, controls liquid crystal display display electric heating plate
Heating duration and/or stirring duration, heating-up temperature and the rotating speed of described direct current generator, and control buzzer warning, by this
The technical scheme of utility model, can realize heating timing and/or stirring timing, overheating warning and mixing speed and heating-up temperature
Measure and display.
Accompanying drawing explanation
The schematic block diagram of a kind of Multifunctional heating magnetic stirrer that Fig. 1 provides for this utility model one embodiment；
The schematic block diagram of the direct current generator regulating circuit that Fig. 2 provides for this utility model one embodiment；
The schematic block diagram of the exchange heating regulating circuit that Fig. 3 provides for this utility model one embodiment；
The schematic block diagram of a kind of Multifunctional heating magnetic stirrer that Fig. 4 provides for another embodiment of this utility model；
The circuit of a kind of Multifunctional heating magnetic stirrer that Fig. 5 A～Fig. 5 C provides for another embodiment of this utility model
Schematic diagram.
Detailed description of the invention
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
See Fig. 1, Fig. 2 and Fig. 3, a kind of Multifunctional heating magnetic stirrer that this utility model one embodiment provides, bag
Include direct current generator 1, electric heating plate 2 and stirring container (not shown in accompanying drawing), it is characterised in that also include: PIC single chip microcomputer 4 and
The temperature sensor 5 that electrically connects with described PIC single chip microcomputer 4 respectively, tachogenerator 6, clock circuit 7, liquid crystal display 8, honeybee
Ring device 9, wherein,
Described temperature sensing 5 measures temperature and/or the temperature of electric heating plate 2 of mixture in described stirring container, and will
Described temperature exports to PIC single chip microcomputer 4, and the rotating speed of described direct current generator 1 measured by described tachogenerator 6, and by described rotating speed
Output is to PIC single chip microcomputer 4, and described PIC single chip microcomputer 4 controls described liquid crystal display 8 and shows the heating temperature of described electric heating plate 2
Degree, heating duration and/or stirring duration and the rotating speed of described direct current generator 1, and control described buzzer 9 and report to the police.
As shown from the above technical solution, this Multifunctional heating magnetic stirrer that this utility model provides, passes through temperature
The temperature of mixture and/or the temperature of electric heating plate in sensor measurement stirring container, direct current generator measured by tachogenerator
Rotating speed, PIC single chip microcomputer, according to temperature sensor and the output signal of tachogenerator, controls liquid crystal display display electric heating plate
Heating duration, heating-up temperature and the rotating speed of described direct current generator, and control buzzer warning, by technology of the present utility model
Scheme, can realize heating timing, overheating warning and mixing speed and the measurement of heating-up temperature and display.
See Fig. 2, it is preferable that described Multifunctional heating magnetic stirrer, also include direct current generator regulating circuit 10, described
Direct current generator regulating circuit includes: direct current generator pressure regulation unit 100 and electrically connect with described direct current generator pressure regulation unit respectively
DC source 101 and first manual pressure regulation potentiometer 102；
The outfan of described direct current generator pressure regulation unit 100 electrically connects with described direct current generator 1, for adjusting in first manual
Under the control of piezoelectric position device 102, regulation output is to the voltage swing of described direct current generator 1, to control turning of described direct current generator 1
Speed.
As shown from the above technical solution, direct current generator regulating circuit is set up, it is possible to achieve manually to DC motor speed
Regulation controls.
See Fig. 3, it is preferable that described Multifunctional heating magnetic stirrer, also include exchange heating regulating circuit 11, described
Exchange heating regulating circuit 11 includes: exchange is heated pressure regulation unit 110 and heats pressure regulation unit 110 electrical connection with described exchange
Second manual voltage regulation potentiometer 111, wherein,
Described AC voltage adjusting unit 110 is provided with 220V alternating current input interface, the output of described AC voltage adjusting unit 110
End electrically connects with described electric heating plate 2, and under the control of the second manual voltage regulation potentiometer 111, regulation output is to described electricity
Add the voltage swing of hot plate 2, to control heating power and the temperature of described electric heating plate 2.
As shown from the above technical solution, set up exchange heating regulating circuit, can realize manually regulating electricity according to temperature digital display
Add heating power and the temperature of hot plate.
Preferably, described Multifunctional heating magnetic stirrer, also include current-amplifying driving circuit 3, described Current amplifier
Drive circuit 3 includes large driven current density chip ULN2003 or audion, and described buzzer 9 is active buzzer,
Described current-amplifying driving circuit is connected between described active buzzer and described PIC single chip microcomputer, described electric current
Amplification driving circuit is for amplifying the output electric current of described PIC single chip microcomputer, to drive described active buzzer to work.
See Fig. 4, it is preferable that described Multifunctional heating magnetic stirrer, described direct current generator 1 and described PIC single chip microcomputer 4
Electrical connection, described electric heating plate 2 is electrically connected with described PIC single chip microcomputer 4 by relay 12.
It is understood that PIC single chip microcomputer electrically connects with direct current generator, PIC single chip microcomputer passes through relay and electric heating plate
Electrical connection, it is possible to achieve by PIC single chip microcomputer to DC motor speed and the auto-adjustment control of electric heating plate heating-up temperature.
What PIC single chip microcomputer compared 51 series monolithics one of the advantages is that I/O mouth drives load capacity strong, exportable 25mA
Electric current, can directly drive the small power DC motor of below 5W 5V, without motor drive module.If it is desired to drive more than 5W's
High power DC electric machine, can add motor drive module between PIC single chip microcomputer and direct current generator.
Preferably, described Multifunctional heating magnetic stirrer, also include that the speed governing electrically connected with described PIC single chip microcomputer 4 is adjusted
Temperature button (not shown in accompanying drawing) and LED charactron (not shown in accompanying drawing), described LED charactron is for showing by described tune
Direct current generator preset rotation speed and the electric heating plate of velocity modulation temperature key-press input preset heating-up temperature.
Preferably, described Multifunctional heating magnetic stirrer, also include the infrared letter electrically connected with described PIC single chip microcomputer 4
Number receptor (not shown in accompanying drawing), described infrared signal receiver and an IR remote controller (not shown in accompanying drawing) wireless company
Connect.
As shown from the above technical solution, this Multifunctional heating magnetic stirrer that this utility model provides has three kinds of tune
Joint heating-up temperature and the mode of mixing speed: the first, according to tachometer value and the temperature value of liquid crystal display output, pass through potentiometer
The rotating speed of Non-follow control PIC single chip microcomputer regulation direct current generator and the heating-up temperature of electric heating plate；Second passes through IR signal reception
Device and IR remote controller remotely control the rotating speed of direct current generator and the heating-up temperature of electric heating plate；3rd, press according to speed and temp regulating
After key preset rotation speed, reach preset rotation speed by PIC single chip microcomputer regulation direct current generator, heating-up temperature can according to temperature sensor and
PIC single chip microcomputer is automatically adjusted.
Preferably, described Multifunctional heating magnetic stirrer, also include that electrical level transferring chip MAX232 (is not shown in accompanying drawing
Go out) and serial line interface (not shown in accompanying drawing), described serial line interface is mono-with described PIC by described electrical level transferring chip MAX232
Sheet machine 4 electrically connects, and described serial line interface is for realizing the data transmission between described PIC single chip microcomputer 4 and external computer.
It is understood that PIC single chip microcomputer has the serial communication interface of full duplex, so PIC single chip microcomputer and external computer
Between can carry out serial communication easily.To meet some requirements when carrying out serial communication, such as: the serial ports of computer is
RS232 level, and the serial ports of PIC single chip microcomputer is Transistor-Transistor Logic level, must have a level shifting circuit between the two, uses
Special chip MAX232 changes, simple and reliable.
Preferably, described tachogenerator 6 includes: Hall element, photoelectric sensor and/or photoelectric encoder.
If using Hall element to obtain pulse signal, as long as being stained with a magnetic on the circumference of DC motor shaft
Steel, allows Hall switch near magnet steel, just has signal to export, and when rotating shaft rotates, will be constantly be generated output of pulse signal.If
Circumferentially it is stained with many magnet steel, it is possible to achieve rotate a circle, it is thus achieved that multiple pulses export, to reach the purpose tested the speed.
Preferably, the model of described PIC single chip microcomputer 4 is PIC18F4520, and the model of described temperature sensor 5 is numeral temperature
Degree sensor DS18B20, the model of described liquid crystal display 8 is LCD 1602.
Using conventional digital temperature sensor DS18B20, main advantage is:
1) DS18B20 exports digital quantity, PIC single chip microcomputer can Direct Recognition, need not additional A/D conversion chip, and measure
Precision is high.2) the most only need to be maintained at room temperature or 25 DEG C due to stirring container, mixture heating-up temperature is less than 100 DEG C, and
The temperature measurement range of DS18B20 is 0～125 DEG C, and the heating-up temperature being completely suitable for magnetic stirrer is measured.3)DS18B20
There is multi-temperature point and measure function simultaneously, the temperature of electric heating plate can be measured, it is possible to mix as external temp sensor measurement
Thing self-temperature.
The circuit of a kind of Multifunctional heating magnetic stirrer that Fig. 5 A～Fig. 5 C provides for another embodiment of this utility model
Schematic diagram, sees Fig. 5 A～Fig. 5 C, in the present embodiment, clock circuit by clock chip DS 1302 and pull-up resistor R6, R7,
R8, R11, electric capacity C6 and crystal oscillator Y2 composition；Tachogenerator is by groove type photoelectric switch H21A3 and resistance R1, R3 and electric capacity C3 group
Become；Current-amplifying driving circuit is made up of NPN type triode Q1, and wherein temperature sensor DS18B20 is provided with two, and it is right to realize
The multimetering of temperature.
This utility model is not limited to above-mentioned preferred forms, and anyone can draw under enlightenment of the present utility model
Other various forms of products, no matter but in its shape or structure, make any change, every have same as the present application or phase
The technical scheme of approximation, within all falling within protection domain of the present utility model.Term " first ", " second " are only used for describing mesh
, and it is not intended that indicate or hint relative importance.Term " multiple " refers to two or more, unless otherwise clearly
Restriction.
Claims (10)
1. a Multifunctional heating magnetic stirrer, including direct current generator, electric heating plate and stirring container, it is characterised in that also
Including: PIC single chip microcomputer and the temperature sensor electrically connected with described PIC single chip microcomputer respectively, tachogenerator, clock circuit, liquid
Crystal display, buzzer, wherein,
Temperature and/or the temperature of electric heating plate of mixture in container is stirred described in described temperature sensor measurement, and by described
Temperature exports to PIC single chip microcomputer, and the rotating speed of described direct current generator measured by described tachogenerator, and described rotating speed is exported to
PIC single chip microcomputer, described PIC single chip microcomputer controls described liquid crystal display and shows the heating-up temperature of described electric heating plate, heating duration
And/or stir duration and the rotating speed of described direct current generator, and control described buzzer warning.
Multifunctional heating magnetic stirrer the most according to claim 1, it is characterised in that also include direct current generator pressure regulation electricity
Road, described direct current generator regulating circuit includes: direct current generator pressure regulation unit and being electrically connected with described direct current generator pressure regulation unit respectively
The DC source connect and first manual pressure regulation potentiometer；
The outfan of described direct current generator pressure regulation unit electrically connects with described direct current generator, at first manual pressure regulation potentiometer
Control under, regulation output is to the voltage swing of described direct current generator, to control the rotating speed of described direct current generator.
Multifunctional heating magnetic stirrer the most according to claim 1, it is characterised in that also include exchange heating pressure regulation electricity
Road, described exchange heating regulating circuit includes: exchange is heated pressure regulation unit and exchanges what heating pressure regulation unit electrically connected with described
Second manual voltage regulation potentiometer, wherein,
Described AC voltage adjusting unit is provided with 220V alternating current input interface, the outfan of described AC voltage adjusting unit and described electricity
Adding hot plate electrical connection, under the control of the second manual voltage regulation potentiometer, regulation output is big to the voltage of described electric heating plate
Little, to control heating power and the temperature of described electric heating plate.
Multifunctional heating magnetic stirrer the most according to claim 1, it is characterised in that also include that Current amplifier drives electricity
Road, described current-amplifying driving circuit includes large driven current density chip ULN2003 or audion, and described buzzer is active buzzing
Device,
Described current-amplifying driving circuit is connected between described active buzzer and described PIC single chip microcomputer, described Current amplifier
Drive circuit is for amplifying the output electric current of described PIC single chip microcomputer, to drive described active buzzer to work.
Multifunctional heating magnetic stirrer the most according to claim 1, it is characterised in that described direct current generator is with described
PIC single chip microcomputer electrically connects, and described electric heating plate is electrically connected with described PIC single chip microcomputer by relay.
Multifunctional heating magnetic stirrer the most according to claim 5, it is characterised in that also include and described PIC monolithic
The speed and temp regulating button of mechatronics and LED charactron, described LED charactron is defeated by described speed and temp regulating button for display
The direct current generator preset rotation speed entered and electric heating plate preset heating-up temperature.
Multifunctional heating magnetic stirrer the most according to claim 5, it is characterised in that also include and described PIC monolithic
The infrared signal receiver of mechatronics, described infrared signal receiver and IR remote controller wireless connections.
Multifunctional heating magnetic stirrer the most according to claim 5, it is characterised in that also include electrical level transferring chip
MAX232 and serial line interface, described serial line interface is electrically connected with described PIC single chip microcomputer by described electrical level transferring chip MAX232,
Described serial line interface is for realizing the data transmission between described PIC single chip microcomputer and external computer.
Multifunctional heating magnetic stirrer the most according to claim 1, it is characterised in that described tachogenerator includes:
Hall element, photoelectric sensor and/or photoelectric encoder.
10. according to the Multifunctional heating magnetic stirrer described in any one of claim 1～9, it is characterised in that described PIC is mono-
The model of sheet machine is PIC18F4520, and the model of described temperature sensor is digital temperature sensor DS18B20, described liquid crystal
The model showing device is LCD 1602.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201620619166.6U CN205787764U (en) | 2016-06-22 | 2016-06-22 | A kind of Multifunctional heating magnetic stirrer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620619166.6U CN205787764U (en) | 2016-06-22 | 2016-06-22 | A kind of Multifunctional heating magnetic stirrer |
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| CN205787764U true CN205787764U (en) | 2016-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112965364A (en) * | 2021-02-08 | 2021-06-15 | 南京工业大学 | Modeling and iPID (induced draft identification) method for aerodynamic thermal ground simulation system of hypersonic aircraft |
-
2016
- 2016-06-22 CN CN201620619166.6U patent/CN205787764U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112965364A (en) * | 2021-02-08 | 2021-06-15 | 南京工业大学 | Modeling and iPID (induced draft identification) method for aerodynamic thermal ground simulation system of hypersonic aircraft |
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