CN204320191U - Education experiment far infrared agitating heater - Google Patents
Education experiment far infrared agitating heater Download PDFInfo
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- CN204320191U CN204320191U CN201420780335.5U CN201420780335U CN204320191U CN 204320191 U CN204320191 U CN 204320191U CN 201420780335 U CN201420780335 U CN 201420780335U CN 204320191 U CN204320191 U CN 204320191U
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Abstract
The utility model discloses a kind of education experiment far infrared agitating heater, namely the cylindrical shape case of this device is located at housing end face between two parties, far infrared heating piece is located in cylindrical shape case, far infrared heating piece sidewall is located at by first temperature sensor, second temperature sensor is located at housing end face and is positioned at cylindrical shape case center, magnetic stirring apparatus to be located in housing and to be positioned at below cylindrical shape case, control display floater and be located at housing side, control unit to be located in housing and by controlling display floater, first temperature sensor and the second temperature sensor control far infrared heating piece and magnetic stirring apparatus.The defect that this device overcomes traditional experiment heating and stirs, facilitates the carrying out of education experiment, guarantees the accuracy of experimental result, stopped the potential safety hazard of experimentation.
Description
Technical field
The utility model relates to a kind of education experiment far infrared agitating heater.
Background technology
Usually need to all kinds of material of chemical reaction or reagent heats and stir process in education experiment, existing experiment heating process is all generally heat exchange pattern, heat as adopted alcolhol burner, this mode of heating, to the heating of heating object one side, makes experiment heating uneven and can not heating-up temperature be controlled, and the general stirring rod that adopts of stirring can only be carried out, make to stir abundant not, thus cause experimental result to produce deviation; Also certain potential safety hazard is there is in the mode of alcolhol burner heating simultaneously in experimentation.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of education experiment far infrared agitating heater, the defect that this device overcomes traditional experiment heating and stirs, facilitate the carrying out of education experiment, guarantee the accuracy of experimental result, stop the potential safety hazard of experimentation.
For solving the problems of the technologies described above, the utility model education experiment far infrared agitating heater comprises housing, cylindrical shape case, far infrared heating piece, magnetic stirring apparatus, control display floater, first temperature sensor, second temperature sensor and control unit, described cylindrical shape case is located at described housing end face between two parties, described far infrared heating piece is located in described cylindrical shape case, described far infrared heating piece sidewall is located at by described first temperature sensor, described second temperature sensor is located at described housing end face and is positioned at described cylindrical shape case center, described magnetic stirring apparatus to be located in described housing and to be positioned at below described cylindrical shape case, described control display floater is located at described housing side, described control unit to be located in described housing and by described control display floater, first temperature sensor and the second temperature sensor control described far infrared heating piece and magnetic stirring apparatus.
Further, described magnetic stirring apparatus comprises support, drive motors and stirrer, described is set up in described housing bottom surface, described drive motors is located on described support, described drive motors rotating shaft is stretched out described housing end face and is connected described stirrer, and described stirrer is positioned at described cylindrical shape case center.
Further, described control display floater comprises cover plate and is located at real time temperature display tube, design temperature display tube, temperature setting knobs, speed of agitator adjusting knob and the power switch on described cover plate respectively.
Further, described control unit comprises single-chip microcomputer, power module, power management module, stir driver module, relay module, parameter setting module, temperature-measuring module and driver module, described power module input connects external power source, output connects described power management module input and relay module power input respectively, the output of described power management module connects described single-chip microcomputer respectively and stirs the power input of driver module, described parameter setting module is connected the signal input part of described single-chip microcomputer with the signal output part of temperature-measuring module, the input of described parameter setting module connects described control display floater, the input of described temperature-measuring module connects described first temperature sensor and the second temperature sensor, the display output of described single-chip microcomputer connects the signal input part of described driver module, the signal output part of described driver module connects described control display floater, the temperature control signals of described single-chip microcomputer connects the signal input part of described relay module, the signal output part of described relay module connects described far-infrared heating film.
Further, this device also comprises four balance foots pad, and described four balance foots pad are distributed in the bottom surface of described housing.
Because the utility model education experiment far infrared agitating heater have employed technique scheme, namely the cylindrical shape case of this device is located at housing end face between two parties, far infrared heating piece is located in cylindrical shape case, far infrared heating piece sidewall is located at by first temperature sensor, second temperature sensor is located at housing end face and is positioned at cylindrical shape case center, magnetic stirring apparatus to be located in housing and to be positioned at below cylindrical shape case, control display floater and be located at housing side, control unit to be located in housing and by controlling display floater, first temperature sensor and the second temperature sensor control far infrared heating piece and magnetic stirring apparatus.The defect that this device overcomes traditional experiment heating and stirs, facilitates the carrying out of education experiment, guarantees the accuracy of experimental result, stopped the potential safety hazard of experimentation.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is described in further detail:
Fig. 1 is the utility model education experiment far infrared agitating heater schematic diagram;
Fig. 2 is the parts exploded view of this device;
Fig. 3 is the theory diagram of control unit in this device.
Fig. 4 is the circuit realiration figure of power management module in this device control units;
Fig. 5 is the pinouts of single-chip microcomputer in this device control units;
Fig. 6 is the burning program interface diagram of single-chip microcomputer in this device control units;
Fig. 7 is the circuit realiration figure stirring driver module in this device control units;
Fig. 8 is the circuit realiration figure of parameter setting module in this device control units;
Fig. 9 is the circuit realiration figure of this device control units repeat circuit module;
Figure 10 is the circuit realiration figure of temperature-measuring module in this device control units;
Figure 11 is the circuit realiration figure of driver module in this device control units.
Detailed description of the invention
Embodiment 1 as depicted in figs. 1 and 2, the utility model education experiment far infrared agitating heater comprises housing 1, cylindrical shape case 2, far infrared heating piece 3, magnetic stirring apparatus 4, control display floater 5, first temperature sensor 6, second temperature sensor 7 and control unit, described cylindrical shape case 2 is located at described housing 1 end face between two parties, described far infrared heating piece 3 is located in described cylindrical shape case 2, described far infrared heating piece 3 sidewall is located at by described first temperature sensor 6, described second temperature sensor 7 is located at described housing 1 end face and is positioned at described cylindrical shape case 2 center, described magnetic stirring apparatus 4 to be located in described housing 1 and to be positioned at below described cylindrical shape case 2, described control display floater 5 is located at described housing 1 side, described control unit to be located in described housing 1 and by described control display floater 5, first temperature sensor 6 and the second temperature sensor 7 control described far infrared heating piece 3 and magnetic stirring apparatus 4.
Preferably, described magnetic stirring apparatus 4 comprises support 41, drive motors 42 and stirrer 43, described housing 1 bottom surface is located at by described support 41, described drive motors 42 is located on described support 41, the rotating shaft of described drive motors 42 is stretched out described housing 1 end face and is connected described stirrer 43, and described stirrer 43 is positioned at described cylindrical shape case 2 center.
Preferably, described control display floater 5 comprises cover plate and is located at real time temperature display tube 52, design temperature display tube 53, temperature setting knobs 54, speed of agitator adjusting knob 55 and the power switch 56 on described cover plate 51 respectively.
Preferably, as shown in Figure 3, described control unit comprises single-chip microcomputer 81, power module 82, power management module 83, stir driver module 84, relay module 85, parameter setting module 86, temperature-measuring module 87 and driver module 88, described power module 82 input connects external power source, output connects described power management module 83 input and relay module 85 power input respectively, the output of described power management module 83 connects described single-chip microcomputer 81 respectively and stirs the power input of driver module 84, described parameter setting module 86 is connected the signal input part of described single-chip microcomputer 81 with the signal output part of temperature-measuring module 87, the input of described parameter setting module 86 connects described control display floater, the input of described temperature-measuring module 87 connects described first temperature sensor 6 and the second temperature sensor 7, the display output of described single-chip microcomputer 81 connects the signal input part of described driver module 88, the signal output part of described driver module 88 connects described control display floater, the temperature control signals of described single-chip microcomputer 81 connects the signal input part of described relay module 85, the signal output part of described relay module 85 connects described far-infrared heating film 3.
Fig. 4 is the circuit realiration figure of power management module, and it adopts LM2596 chip and HT7833 chip to obtain+12V voltage and+3.3V voltage respectively, to provide the working power of other modules.
Fig. 5 is the pinout of single-chip microcomputer;
Fig. 6 is the burning program interface of single-chip microcomputer, and wherein RXD, TXD connect the respective pins of single-chip microcomputer respectively;
Fig. 7 is the circuit realiration figure stirring driver module, obtains voltage signal DIANJI by resistance R12 and R14 dividing potential drop.Voltage signal DIANJI forms a voltage follower circuit by LM358 chip, for magnetic stirring apparatus drive motors interface P1 provides voltage.
Fig. 8 is the circuit realiration figure of parameter setting module, and this circuit is made up of code switch, and by 4,5 pin of resistance R16, P2 interface, resistance R17 forms key circuit, when button is not pressed, and KEY1 low level, when button is pressed, KEY1 high level; By 1,2, the 3 pin composition code detection circuits of R13, R15, P2, detect the level signal of BMQ1, BMQ2 respectively, realize corresponding setting parameter.
Fig. 9 is the circuit realiration figure of relay module, and wherein interface P3 is the interface of external power source, and P4 is far-infrared heating film power interface.When single-chip microcomputer judges to need heating, exporting CTL_RELAY signal is high level, and triode Q9 is conducting state, so relay U3 JQC-3F is attracting state, and the 4 pin+12V of U3 are connected to the 1 pin REL_IN1 of U3, and interface P4 is connected to+12V, far-infrared heating film starts, and starts heating; When single-chip microcomputer judges not need heating, exporting CTL_RELAY signal is low level, and triode Q9 is cut-off state, and relay U3 JQC-3F is off state, and the 4 pin+12V of U3 are connected to 2 pin of U3, and interface P4 and+12V disconnect, and far-infrared heating film does not work.
Figure 10 is the circuit realiration figure of temperature-measuring module, chip LM385-2.5 function is the voltage reference chip of 2.5V, interface P5 and interface P6 are connected two temperature sensors respectively, resistance R25 and interface P5 dividing potential drop, signal AD0 is connected to the AD conversion pin AD0 of single-chip microcomputer, single-chip microcomputer, by AD conversion, calculates the temperature value of interface P5.In like manner, the temperature value of interface P6 is calculated.
Figure 11 is the circuit realiration figure of driver module, realize the display driver of real time temperature display tube and design temperature display tube respectively, adopt two chip blocks and corresponding triangular pipe to be connected with the respective pins of single-chip microcomputer, single-chip microcomputer, by the control of these signals, completes the display of field liquid crystal.
In this device, the first temperature sensor and the second temperature sensor are respectively used to detect far-infrared heating film heating-up temperature and heating target temperature in real time, single-chip microcomputer gathers the temperature signal of the first temperature sensor and the detection of the second temperature sensor by temperature-measuring module, the temperature setting knobs controlling display floater needs the temperature of heating by parameter setting module setting, single-chip microcomputer shows actual heating-up temperature and setting heating-up temperature by driver module respectively at the real time temperature display tube and design temperature display tube that control display floater simultaneously, be convenient to the control of experimental temperature, far-infrared heating film is controlled by relay module, and single-chip microcomputer is according to the break-make of design temperature and actual temperature control relay module, thus the heating-up temperature controlling far-infrared heating film is tending towards design temperature, control the mixing speed of mixing speed adjusting knob by parameter setting module setting magnetic stirring apparatus of display floater, single-chip microcomputer gives to stir driver module drive singal via power management module according to the mixing speed of setting, drives magnetic stirring apparatus to implement to stir by stirring driver module.
Embodiment 2, on the basis of embodiment 1, as depicted in figs. 1 and 2, this device also comprises four balance foots pad 9, and described four balancing legs 9 pad is distributed in the bottom surface of described housing 1.Four balance foots pad, for adjusting the horizontal level of this device, make this device be in level all the time, avoid producing.
This device adopts radiation to add temperature-heat-source, and thermal source is cylindrical furnace structure, installs columniform far-infrared heating film in body of heater, can to object of experiment, as beaker, test tube heat, this kind of mode of heating makes the object thermally equivalent of heating, overcomes the defect of alcolhol burner heating; And in the housing of device, magnetic stirring apparatus being installed, heating of many experimental subjects can be allowed more quick, even by fully stirring, and built-in two temperature sensors can being that experimental subjects creates isoperibol.
Claims (5)
1. an education experiment far infrared agitating heater, it is characterized in that: this device comprises housing, cylindrical shape case, far infrared heating piece, magnetic stirring apparatus, control display floater, first temperature sensor, second temperature sensor and control unit, described cylindrical shape case is located at described housing end face between two parties, described far infrared heating piece is located in described cylindrical shape case, described far infrared heating piece sidewall is located at by described first temperature sensor, described second temperature sensor is located at described housing end face and is positioned at described cylindrical shape case center, described magnetic stirring apparatus to be located in described housing and to be positioned at below described cylindrical shape case, described control display floater is located at described housing side, described control unit to be located in described housing and by described control display floater, first temperature sensor and the second temperature sensor control described far infrared heating piece and magnetic stirring apparatus.
2. education experiment far infrared agitating heater according to claim 1, it is characterized in that: described magnetic stirring apparatus comprises support, drive motors and stirrer, described is set up in described housing bottom surface, described drive motors is located on described support, described drive motors rotating shaft is stretched out described housing end face and is connected described stirrer, and described stirrer is positioned at described cylindrical shape case center.
3. education experiment far infrared agitating heater according to claim 1, is characterized in that: described control display floater comprises cover plate and is located at real time temperature display tube, design temperature display tube, temperature setting knobs, speed of agitator adjusting knob and the power switch on described cover plate respectively.
4. education experiment far infrared agitating heater according to claim 1, it is characterized in that: described control unit comprises single-chip microcomputer, power module, power management module, stir driver module, relay module, parameter setting module, temperature-measuring module and driver module, described power module input connects external power source, output connects described power management module input and relay module power input respectively, the output of described power management module connects described single-chip microcomputer respectively and stirs the power input of driver module, described parameter setting module is connected the signal input part of described single-chip microcomputer with the signal output part of temperature-measuring module, the input of described parameter setting module connects described control display floater, the input of described temperature-measuring module connects described first temperature sensor and the second temperature sensor, the display output of described single-chip microcomputer connects the signal input part of described driver module, the signal output part of described driver module connects described control display floater, the temperature control signals of described single-chip microcomputer connects the signal input part of described relay module, the signal output part of described relay module connects described far-infrared heating film.
5. education experiment far infrared agitating heater according to claim 1, is characterized in that: this device also comprises four balance foots pad, and described four balance foots pad are distributed in the bottom surface of described housing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420780335.5U CN204320191U (en) | 2014-12-12 | 2014-12-12 | Education experiment far infrared agitating heater |
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| CN201420780335.5U CN204320191U (en) | 2014-12-12 | 2014-12-12 | Education experiment far infrared agitating heater |
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| CN204320191U true CN204320191U (en) | 2015-05-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105727807A (en) * | 2014-12-12 | 2016-07-06 | 上海数好数字信息科技有限公司 | Teaching experiment far infrared stirring heating device |
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- 2014-12-12 CN CN201420780335.5U patent/CN204320191U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105727807A (en) * | 2014-12-12 | 2016-07-06 | 上海数好数字信息科技有限公司 | Teaching experiment far infrared stirring heating device |
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