CN203858523U - Precision instrument with temperature control device - Google Patents
Precision instrument with temperature control device Download PDFInfo
- Publication number
- CN203858523U CN203858523U CN201420008027.0U CN201420008027U CN203858523U CN 203858523 U CN203858523 U CN 203858523U CN 201420008027 U CN201420008027 U CN 201420008027U CN 203858523 U CN203858523 U CN 203858523U
- Authority
- CN
- China
- Prior art keywords
- instrument
- temperature
- module
- air channel
- attemperating unit
- 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
- 238000005057 refrigeration Methods 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 239000004065 semiconductor Substances 0.000 claims abstract description 9
- 230000005619 thermoelectricity Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
Provided is a precision instrument with a temperature control device. The precision instrument comprises an instrument box (1). The precision instrument is characterized in that the instrument box (1) is internally provided with an air channel (2) and the temperature control device. The air channel (2) is provided with an air port (9) orienting the part under temperature control of the instrument. The temperature control device comprises a temperature detection circuit (3) which is used for measuring temperature of the part under temperature control of the instrument, an analog-to-digital conversion circuit (4), a central processing unit (5) which is used for analyzing and processing temperature information and transmitting a control signal, a control module (6), a heating and refrigeration module and a power supply (11). All the circuits, the modules and the units are connected in turn. The precision instrument also comprises flow-guiding device which is arranged at one side of the heating and refrigeration module and used for guiding high-temperature air flow or low-temperature air flow generated by the heating and refrigeration module into the air channel (2). The control module (6) is a power supply polarity conversion switch and a drive circuit thereof. The heating and refrigeration module is a semiconductor module (8).
Description
Technical field
The utility model relates to a kind of exact instrument, is specifically related to have the exact instrument of attemperating unit.
Background technology
The instrument using at present is all subject to the impact of ambient temperature larger, and in the time that ambient temperature is too high or too low, some exact instrument all can not normally use.And the temperature of instrument itself also can raise along with the prolongation of continuous service time, float thereby produce temperature, have a strong impact on measurement result, greatly reduce measuring accuracy.For the heat radiation of instrument, the instrument container using has at present adopted atmosphere communication type structure simultaneously, and dust and moisture are encroached on electronic unit at any time, have greatly shortened the serviceable life of instrument.
Summary of the invention
For the problems referred to above, the utility model provides a kind of exact instrument with attemperating unit.
For addressing the above problem, the technical scheme that the utility model is taked is: comprise instrument container, in instrument container, be provided with air channel and attemperating unit, air channel is provided with the air port for the treatment of temperature control position towards instrument, described attemperating unit comprises: one treats the temperature sensing circuit of temperature control position temperature for surveying instrument, one analog to digital conversion circuit, one for analyzing and processing temperature information and send the CPU (central processing unit) of control signal, one control module, one heats refrigeration module and power supply, each circuit, module, unit connects successively, also comprise that one is positioned at the guiding device that heats refrigeration module one side, for the high temperature gas flow of its generation or low-temperature airflow are imported in air channel.The temperature information that temperature sensing circuit detects is passed to CPU (central processing unit) through analog to digital conversion circuit and is judged that by it instrument is whether within the scope of optimum working temperature, and sends signal and complete the conversion of cooling and warming to control module.Thereby for instrument provides best working environment, reduce warm impact of floating generation, greatly improved measuring accuracy.
Described control module is electric power polarity switch and driving circuit thereof, is connected to the control signal output terminal of CPU (central processing unit), for changing the working current polarity of cooling and warming module.
The described refrigeration module that heats is semiconductor module, is arranged on porch, air channel, the conversion that completes refrigeration, heats according to working current polarity difference.
Temperature element in described temperature sensing circuit is occasionally thermal resistance of thermoelectricity.Thermoelectricity is Thermistor Temperature Measurement wide ranges occasionally, and measuring accuracy is high, to temperature variation reaction flexibly, and long service life.
Described guiding device is the fan that is installed on semiconductor module one side, and high temperature gas flow or low-temperature airflow that semiconductor module is produced are delivered into air channel.
For the invasion of isolated external dust and moisture, described instrument container is that all-sealed structure and instrument container are provided with the vent fan with containment member.Vent fan is positioned at the outside that heats refrigeration module, discharges heated gas when freezing, discharges cold air while heating.
The utility model has reduced the restrictive condition that ambient temperature is used instrument, makes instrument have the scope of application more widely.For instrument provides best temperature environment, reduce warm impact of floating generation simultaneously, greatly improved measuring accuracy, extended the serviceable life of instrument.In addition, the instrument container of all-sealed structure has completely cut off the invasion of external dust and moisture, has stopped the infringement of objectionable impurities to electron device and circuit board, and the working environment that has improved instrument core component has also extended the serviceable life of instrument core component greatly.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment;
Wherein, 1, instrument container, 2, air channel, 3, temperature sensing circuit, 4, analog to digital conversion circuit, 5, CPU (central processing unit), 6, control module, 7, fan, 8, semiconductor module, 9, air port, 10, vent fan, 11, power supply.
Embodiment
There is an exact instrument for attemperating unit, comprise that the instrument container 1 of all-sealed structure and instrument container 1 are provided with the vent fan 10 with containment member.In instrument container 1, be provided with air channel 2 and attemperating unit, air channel distributes along instrument container inwall, air channel 2 is provided with the air port 9 for the treatment of temperature control position towards instrument, and in the time that temperature control position is a few thing, the components and parts of easy heat-dissipating or when work need meet the components and parts of uniform temperature condition.Described attemperating unit comprises: one treats the temperature sensing circuit 3 of temperature control position temperature for surveying instrument, one analog to digital conversion circuit 4, one for analyzing and processing temperature information and send the CPU (central processing unit) 5 of control signal, one control module 6, one heats the power supply 11 of refrigeration module, temperature element in described temperature sensing circuit 3 is occasionally thermal resistance of thermoelectricity, described control module 6 is electric power polarity switch and driving circuit thereof, each circuit, module, unit connects successively, also comprise that one is positioned at the guiding device that heats refrigeration module one side, the described refrigeration module that heats is semiconductor module 8, described guiding device is the fan 7 that is installed on semiconductor module 8 one sides, for the high temperature gas flow of its generation or low-temperature airflow are imported in air channel 2.
Claims (4)
1. one kind has the exact instrument of attemperating unit, comprise instrument container (1), it is characterized in that: in instrument container (1), be provided with air channel (2) and attemperating unit, air channel (2) is provided with the air port (9) for the treatment of temperature control position towards instrument, described attemperating unit comprises: one treats the temperature sensing circuit (3) of temperature control position temperature for surveying instrument, one analog to digital conversion circuit (4), one for analyzing and processing temperature information and send the CPU (central processing unit) (5) of control signal, one control module (6), one heats refrigeration module and power supply (11), each circuit, module, unit connects successively, also comprise that one is positioned at the guiding device that heats refrigeration module one side, for the high temperature gas flow of its generation or low-temperature airflow are imported in air channel (2), described control module (6) is electric power polarity switch and driving circuit thereof, the described refrigeration module that heats is semiconductor module (8).
2. the exact instrument with attemperating unit according to claim 1, is characterized in that: the temperature element in described temperature sensing circuit (3) is occasionally thermal resistance of thermoelectricity.
3. the exact instrument with attemperating unit according to claim 1, is characterized in that: described guiding device is for being installed on the fan (7) of semiconductor module (8) one sides.
4. the exact instrument with attemperating unit according to claim 3, is characterized in that: described instrument container (1) is provided with the vent fan (10) with containment member for all-sealed structure and instrument container (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008027.0U CN203858523U (en) | 2014-01-07 | 2014-01-07 | Precision instrument with temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008027.0U CN203858523U (en) | 2014-01-07 | 2014-01-07 | Precision instrument with temperature control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203858523U true CN203858523U (en) | 2014-10-01 |
Family
ID=51608365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420008027.0U Expired - Fee Related CN203858523U (en) | 2014-01-07 | 2014-01-07 | Precision instrument with temperature control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203858523U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483807A (en) * | 2014-09-18 | 2015-04-01 | 哈尔滨工业大学 | Camera heat protector under near space environment |
| CN106970666A (en) * | 2016-01-14 | 2017-07-21 | 中国铁道科学研究院通信信号研究所 | For the Temperature-controlled appliance of inclination measurement device, method and inclination measurement device |
| CN108414566A (en) * | 2018-05-20 | 2018-08-17 | 苏州固特斯电子科技有限公司 | A kind of precision instrument of temperature controllable |
| CN109057405A (en) * | 2018-06-22 | 2018-12-21 | 肖林锋 | A kind of measuring workplace of precision instrument |
-
2014
- 2014-01-07 CN CN201420008027.0U patent/CN203858523U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483807A (en) * | 2014-09-18 | 2015-04-01 | 哈尔滨工业大学 | Camera heat protector under near space environment |
| CN106970666A (en) * | 2016-01-14 | 2017-07-21 | 中国铁道科学研究院通信信号研究所 | For the Temperature-controlled appliance of inclination measurement device, method and inclination measurement device |
| CN108414566A (en) * | 2018-05-20 | 2018-08-17 | 苏州固特斯电子科技有限公司 | A kind of precision instrument of temperature controllable |
| CN109057405A (en) * | 2018-06-22 | 2018-12-21 | 肖林锋 | A kind of measuring workplace of precision instrument |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 |