CN202600525U - Small thermotank capable of displaying real-time temperature curve - Google Patents
Small thermotank capable of displaying real-time temperature curve Download PDFInfo
- Publication number
- CN202600525U CN202600525U CN2012202637650U CN201220263765U CN202600525U CN 202600525 U CN202600525 U CN 202600525U CN 2012202637650 U CN2012202637650 U CN 2012202637650U CN 201220263765 U CN201220263765 U CN 201220263765U CN 202600525 U CN202600525 U CN 202600525U
- Authority
- CN
- China
- Prior art keywords
- temperature
- mcu
- links
- input circuit
- temperature curve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a small thermotank capable of displaying a real-time temperature curve, and belongs to the intelligent temperature control field. The small thermotank capable of displaying the real-time temperature curve resolves the problems that an existing temperature control box device is complex and high in cost, and has no functions of displaying real-time temperature curves and holding optical fibers. The small thermotank capable of displaying the real-time temperature curve comprises a box body and an electric control system, wherein a DS18B20 temperature sensor, a Pt1000 temperature sensor, an agitation fan and a resistive heater are arranged in the box body. The DS18B20 temperature sensor and the Pt1000 temperature sensor are arranged on a top cover of the box body, an end point of the resistive heater is fixed on a lower substrate fixed on the box body through a copper pillar, and the agitation fan is arranged above the resistive heater in an aerial mode. The electric control system comprises a microprogrammed control unit (MCU), a power supply, a target temperature setting command input circuit, a heating system start and stop command input circuit, a temperature curve display command input circuit, a box body cooling command input circuit, a fan driver and a heating relay.
Description
Technical field
The utility model relates to the miniature constant temperature case of real time temperature curve display, belongs to the intelligent temperature control field.
Background technology
Constant temperature oven is widely used in various fields, like the experimental study of optical fiber sensing, and calorifics laboratory research field, pharmaceutical field, food fresh keeping field etc.All the time, receive much concern.With regard to the experimental study field, can relate to many aspects, like the optical fiber sensing The Characteristic Study, the research of temperature-resistant material etc.Because the characteristic of system, it is very difficult wanting to be controlled at certain temperature to system through simple heating, must could realize through certain method.
For now, the existing equipment more complicated is operated not easyly, and price is higher relatively, for experimental teaching, and experimental study, and compact applications occasion, inadvisable.On the one hand, price is hanged down a bit, and temperature control is not very accurate, and the temperature inside the box is inhomogeneous, and fluctuation is very big, and it is also very high that temperature is controlled accurate equipment cost.On the other hand, the adjustment cycle is longer, and reaching equilibrium temperature needs a period of time.Chinese patent " intelligent temperature control case " device that for example application number is 201020275530.4, publication number is CN201765523U is complicated, cost is higher; And there is not a real-time Presentation Function of temperature curve; Can not intuitively observe variation of temperature in the heating process raising middle flask and put into the function of optical fiber, and the fluctuation situation after stable; The Chinese patent of application number 200720201623.0, publication number CN201134050 " combined type temperature control box " structure is too complicated, and the unnecessary part of volume is too many, and does not have the real time temperature curve display and put into the function of optical fiber.
Summary of the invention
The utility model purpose is that existing temperature control box device is complicated in order to solve, cost is high, and does not have the real time temperature curve display and put into the problem of the function of optical fiber, and a kind of miniature constant temperature case of real time temperature curve display is provided.
The miniature constant temperature case of the said real time temperature curve display of the utility model, it comprises casing and electric control system,
The built-in DS18B20 temperature sensor of casing, Pt1000 temperature sensor, stirrer fan and resistive heater; DS18B20 temperature sensor and Pt1000 temperature sensor are arranged on the top cover of casing; The end points of resistive heater is fixed on the infrabasal plate of casing through the copper post; The built on stilts stirrer fan that is provided with in the top of resistive heater
Electric control system comprises MCU, power supply, target temperature instruction input circuit is set, heating system start and stop instruction input circuit, temperature curve idsplay order input circuit, casing cooling instruction input circuit, fan drives and add electrothermal relay,
Power supply is supplied power to MCU; The temperature that target temperature instruction input circuit is set is provided with instruction output end and links to each other with the target temperature instruction input end of MCU; The heating instruction output end of heating system start and stop instruction input circuit links to each other with the heating instruction input end of MCU; The temperature curve idsplay order output terminal of temperature curve idsplay order input circuit links to each other with the temperature curve idsplay order input end of MCU; The casing cooling instruction output end of casing cooling instruction input circuit links to each other with the casing cooling instruction input end of MCU; The temperature signal output terminal of DS18B20 temperature sensor links to each other with the first temperature signal input end of MCU; The temperature signal output terminal of Pt1000 temperature sensor links to each other with the second temperature signal input end of MCU, and the casing cooling instruction output end of MCU links to each other with the input end of fan drives, and the casing cooling instruction output end of fan drives links to each other with the control end of stirrer fan; The heating instruction output end of MCU links to each other with the input end that adds electrothermal relay, and the heating instruction output end that adds electrothermal relay links to each other with the control end of resistive heater.
The advantage of the utility model:
1. simple in structure, easy and simple to handle.
2. the thermostatic box design is unique, has optical fiber is passed the fixing function of thermostatic box.
3. resistive heater and fan adopt pid algorithm, and temperature control is 0.1 ℃ in room temperature to+70 ℃ of precision accurately, and+70 to+150 ℃ is 0.5 ℃.
4. it is short that the ingenious design of resistance wire structure, startup are heated to the temperature stabilization time.
5. the real-time displays temperature curve of liquid crystal display (is reference line with the design temperature), temperature value (display resolution is 0.01 ℃), set temperature value (display resolution is 0.01 ℃), heating dutycycle, fan dutycycle, PID regulate information and parameters such as parameter.
Description of drawings
Fig. 1 is the structural representation of the miniature constant temperature case of the said real time temperature curve display of the utility model;
Fig. 2 is the electrical schematic diagram of the miniature constant temperature case of the said real time temperature curve display of the utility model.
Embodiment
Embodiment one: below in conjunction with Fig. 1 and Fig. 2 this embodiment is described, the miniature constant temperature case of the said real time temperature curve display of this embodiment, it comprises casing and electric control system,
The built-in DS18B20 temperature sensor of casing 1, Pt1000 temperature sensor 2, stirrer fan 3 and resistive heater 4; DS18B20 temperature sensor 1 is arranged on the top cover of casing with Pt1000 temperature sensor 2; The end points of resistive heater 4 is fixed on the infrabasal plate of casing through the copper post; The built on stilts stirrer fan 3 that is provided with in the top of resistive heater 4
Electric control system comprises MCU5, power supply 6, target temperature instruction input circuit 7 is set, heating system start and stop instruction input circuit 8, temperature curve idsplay order input circuit 9, casing cooling instruction input circuit 10, fan drives 12 and add electrothermal relay 13
Stirrer fan 3 adopts the 12V power supply, uses pid algorithm, through MCU5 control fan drives 12, and control stirrer fan 3 rotating speeds.Rotation speed of the fan is changed along with the difference of heating intensity, can reach more stable control effect, realize the consistent and cooling of temperature in the casing everywhere.
Target temperature instruction input circuit 7, heating system start and stop instruction input circuit 8, temperature curve idsplay order input circuit 9 and casing cooling instruction input circuit 10 are set are the part of input instruction; When target temperature instruction input circuit 7 output signals were set, MCU5 will receive the numerical value of target temperature; During heating system start and stop instructions input circuit 8 output signals, MCU5 just receives and opens/instruction that stops heating, and through starting or stoping the coil that adds electrothermal relay 13, and then start or stop resistive heater 4 and realize; During temperature curve idsplay order input circuit 9 output signals, MCU5 has just received the instruction of displays temperature curve on display screen 11; When casing cooling instruction input circuit 10 output signals, MCU5 has just received the instruction to the casing cooling, through starting or stoping the coil of fan drives 12, and then starts or stops stirrer fan 3 and realizes.
Embodiment two: this embodiment is described further embodiment one, and it also comprises display screen 11, and display screen 11 links to each other with MCU5 through 8-bit parallel port.
Embodiment three: this embodiment is described further embodiment two, and display screen 11 adopts 11LCD12864 Chinese characters in current use figure type dot matrix to show liquid crystal display.
The various curves of display screen 11 program-controlled demonstrations, and conventional characters such as Chinese-character digital.
Displaying contents has: real time temperature curve, heating dutycycle, fan dutycycle, pid algorithm parameter, design temperature, real time temperature, function selecting interface etc.Wherein the real time temperature curve with a horizontal straight dashed line display setting temperature, can demonstrate the relation between real time temperature and the design temperature at center Screen intuitively, is convenient to real-time condition in the inspection box.
Embodiment four: this embodiment is described further embodiment one, and the main control chip of MCU5 is selected 51 serial STC12C5A60S2 single-chip microcomputers for use.
MCU5 adopts the STC12C5A60S2 single-chip microcomputer, and through program control, it is unified to reach system coordination, control various piece time-sharing work.
51 serial STC12C5A60S2 single-chip microcomputer stable performances, low-power consumption, inner integrated 10 ADC, cost is low.
Embodiment five: this embodiment is described further embodiment one, and fan drives 12 adopts the L298 chip for driving.
Embodiment six: this embodiment is described further embodiment one, adds electrothermal relay 13 and adopts solid-state relay.
Embodiment seven: this embodiment is described further embodiment one, and resistive heater 4 becomes " Z " font for spiral fashion.
Setting can effectively make heating surface (area) (HS become big like this.
Embodiment eight: this embodiment is described further embodiment one, and the shell of casing is the PVC plastic plate.
The constant temperature oven sheathing material is the PVC plastics, this material melts temperature: 185～205 ℃, have that cost is low, noninflammability, high strength, firm and durable, weather variability and a good geometrical stability.PVC has very strong resistibility to oxygenant, reductive agent and strong acid.Constant temperature oven shell built-in PCB copper-clad plate increases high-temperature capability and heat conduction velocity, and then makes the temperature inside the box even.
Claims (8)
1. the miniature constant temperature case of real time temperature curve display is characterized in that, it comprises casing and electric control system,
The built-in DS18B20 temperature sensor of casing (1), Pt1000 temperature sensor (2), stirrer fan (3) and resistive heater (4); DS18B20 temperature sensor (1) and Pt1000 temperature sensor (2) are arranged on the top cover of casing; The end points of resistive heater (4) is fixed on the infrabasal plate of casing through the copper post; The built on stilts stirrer fan (3) that is provided with in the top of resistive heater (4)
Electric control system comprises MCU (5), power supply (6), target temperature instruction input circuit (7) is set, heating system start and stop instruction input circuit (8), temperature curve idsplay order input circuit (9), casing cooling instruction input circuit (10), fan drives (12) and add electrothermal relay (13)
Power supply (6) is given MCU (5) power supply; The temperature that target temperature instruction input circuit (7) is set is provided with instruction output end and links to each other with the target temperature instruction input end of MCU (5); The heating instruction output end of heating system start and stop instruction input circuits (8) links to each other with the heating of MCU (5) instruction input end; The temperature curve idsplay order output terminal of temperature curve idsplay order input circuit (9) links to each other with the temperature curve idsplay order input end of MCU (5); The casing cooling instruction output end of casing cooling instruction input circuit (10) links to each other with the casing cooling instruction input end of MCU (5); The temperature signal output terminal of DS18B20 temperature sensor (1) links to each other with the first temperature signal input end of MCU (5); The temperature signal output terminal of Pt1000 temperature sensor (2) links to each other with the second temperature signal input end of MCU (5); The casing cooling instruction output end of MCU (5) links to each other with the input end of fan drives (12); The casing cooling instruction output end of fan drives (12) links to each other with the control end of stirrer fan (3), and the heating instruction output end of MCU (5) links to each other with the input end that adds electrothermal relay (13), and the heating instruction output end that adds electrothermal relay (13) links to each other with the control end of resistive heater (4).
2. according to the miniature constant temperature case of the said real time temperature curve display of claim 1, it is characterized in that it also comprises display screen (11), display screen (11) links to each other with MCU (5) through 8-bit parallel port.
3. according to the miniature constant temperature case of the said real time temperature curve display of claim 2, it is characterized in that display screen (11) adopts 11LCD12864 Chinese characters in current use figure type dot matrix to show liquid crystal display.
4. according to the miniature constant temperature case of the said real time temperature curve display of claim 1, it is characterized in that the main control chip of MCU (5) is selected 51 serial STC12C5A60S2 single-chip microcomputers for use.
5. according to the miniature constant temperature case of the said real time temperature curve display of claim 1, it is characterized in that fan drives (12) adopts the L298 chip for driving.
6. according to the miniature constant temperature case of the said real time temperature curve display of claim 1, it is characterized in that, add electrothermal relay (13) and adopt solid-state relay.
7. according to the miniature constant temperature case of the said real time temperature curve display of claim 1, it is characterized in that resistive heater (4) becomes " Z " font for spiral fashion.
8. according to the miniature constant temperature case of the said real time temperature curve display of claim 1, it is characterized in that the shell of casing is the PVC plastic plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202637650U CN202600525U (en) | 2012-06-06 | 2012-06-06 | Small thermotank capable of displaying real-time temperature curve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202637650U CN202600525U (en) | 2012-06-06 | 2012-06-06 | Small thermotank capable of displaying real-time temperature curve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202600525U true CN202600525U (en) | 2012-12-12 |
Family
ID=47318054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202637650U Expired - Fee Related CN202600525U (en) | 2012-06-06 | 2012-06-06 | Small thermotank capable of displaying real-time temperature curve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202600525U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105608856A (en) * | 2016-03-04 | 2016-05-25 | 无锡圣敏传感科技股份有限公司 | Field detection device of portable line-type temperature-sensitive fire detector, and temperature control method therefor |
| CN110243695A (en) * | 2019-07-12 | 2019-09-17 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | It is a kind of for providing the pilot system of structure deformation of creep environment |
-
2012
- 2012-06-06 CN CN2012202637650U patent/CN202600525U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105608856A (en) * | 2016-03-04 | 2016-05-25 | 无锡圣敏传感科技股份有限公司 | Field detection device of portable line-type temperature-sensitive fire detector, and temperature control method therefor |
| CN110243695A (en) * | 2019-07-12 | 2019-09-17 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | It is a kind of for providing the pilot system of structure deformation of creep environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203177596U (en) | Intelligent electric-heating constant-temperature drying box | |
| CN205020020U (en) | Various article magnetic stirrers | |
| CN202600525U (en) | Small thermotank capable of displaying real-time temperature curve | |
| CN203130574U (en) | Intelligent fan | |
| CN101637711A (en) | Method and device for efficiently controlling temperature of reaction kettle | |
| CN103974472A (en) | Heating film and heating device | |
| CN104074790A (en) | Intelligent temperature control fan | |
| CN102641209B (en) | Electrocautery therapeutic instrument | |
| CN203787062U (en) | Light adjusting display device used for washing machine | |
| CN202711093U (en) | Intelligent temperature controller applied to computer or server | |
| CA2822146C (en) | Air heater systems and control methods | |
| CN207097060U (en) | A kind of image detection device | |
| CN204270574U (en) | A kind of thermocouple cold junction compensation demonstrator | |
| CN201845483U (en) | Multi-functional temperature control experiment instrument | |
| CN204695654U (en) | A kind of thermopair experimental provision | |
| CN205280471U (en) | Appearance is cleared up to intelligent high efficiency of magnetic rotating perspective | |
| CN205659629U (en) | Electromagnetism accuse temperature agitator | |
| CN203366157U (en) | Fuzzy PID (Proportion Integration Differentiation) control water temperature adjustment system | |
| CN202568215U (en) | Medical electronic thermometer | |
| CN203264599U (en) | Numerical control stirrer | |
| CN208742593U (en) | A kind of optics warm table | |
| CN205478474U (en) | Intelligent temperature control fan | |
| CN207081275U (en) | It is a kind of based on solar powered constant temperature medicine storage bin | |
| CN209802806U (en) | Temperature-controlled rotary blending instrument | |
| CN204320191U (en) | Education experiment far infrared agitating heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20150606 |
|
| EXPY | Termination of patent right or utility model |