CN2573068Y - Miniature adjustable thermostat - Google Patents
Miniature adjustable thermostat Download PDFInfo
- Publication number
- CN2573068Y CN2573068Y CN 02285489 CN02285489U CN2573068Y CN 2573068 Y CN2573068 Y CN 2573068Y CN 02285489 CN02285489 CN 02285489 CN 02285489 U CN02285489 U CN 02285489U CN 2573068 Y CN2573068 Y CN 2573068Y
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- China
- Prior art keywords
- temperature
- metal body
- radiator
- utility
- control circuit
- 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 - Lifetime
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- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The utility model relates to a miniature adjustable thermostat. The utility model comprises a metal main body, wherein, a flow passage for an experiment section, which is used for placing the experiment section, is arranged on the metal main body, and a semiconductor refrigerator is arranged on the surface of the metal main body. A heat radiator is arranged on the surface of the semiconductor refrigerator, and the outer side of the heat radiator is provided with a radiating fan. The outer side of the metal main body except the position where semiconductor refrigeration devices are arranged is coated by thermal insulation layers of thermal insulation materials. A temperature sensor is fixed inside a hole arranged on the metal main body, and is electrically connected to a temperature control meter. The heat radiator is electrically and respectively connected with a direct current power supply and the temperature control meter through a temperature control circuit. The utility model has the characteristics that the utility model uses the semiconductor refrigeration devices to cool, and heat after the reverse connection of the power supply can be generated. The utility model provides the temperature environment which is required by the experiment section.
Description
Technical field
The utility model relates to a kind of adjustable thermostatic device, particularly relates to a kind of miniature adjustable thermostatic device that is used for the laboratory.
Background technology
In the micro liquid flowing experiment, environment temperature directly influences the flow behavior of liquid in fluid channel (the general micron diameter capillary that adopts of experiment).In order to regulate and the environment temperature of stable experimental section, must or adopt local controlled temperature cabinet to realize by the temperature in the control room, laboratory usually, all on sale on this class register market.But this class register not only makes the adjustment process need be for a long time, and temperature control precision is low, and the cost of equipment height, energy consumption is big, temperature regulating range is little, be difficult to create the low temperature environment near 0 ℃.Particularly can be used for directly yet there are no report in the experiments such as micro liquid flowing experiment, liquid viscosity mensuration or high pressure liquid chromatographic analysis for experimental section provides thermostat stable, adjustable temperature environment.
Summary of the invention
The purpose of this utility model is in order to overcome the defective of prior art, can create adjustable temperature environment on a large scale for experimental section quickly and efficiently, be used for that micro liquid flowing experiment, liquid viscosity are measured or experiment such as high pressure liquid chromatographic analysis thereby provide a kind of, not only had refrigerating function, but also miniature adjustable thermostatic device with function of heating and constant temperature.
The purpose of this utility model is achieved in that
The miniature adjustable thermostatic device that the utility model provides; Comprise: dc source, temperature control instrument temperature-control circuit and temperature sensor; It is characterized in that: also comprise a metal body, at least one block semiconductor refrigerator, radiator, cooling fan and insulation material thermal insulation layer; Wherein have the experimental section runner of placing the experiment thing on the metal body, semiconductor cooler is installed on the surface of metal body, radiator is installed in above the semiconductor cooler, the position of the metal body outside except that semiconductor cooling device is installed all coats with the insulation material thermal insulation layer, and this temperature sensor is electrically connected with temperature control instrument; Radiator is electrically connected with temperature-control circuit; This temperature-control circuit is electrically connected with dc source and temperature control instrument respectively.
Described radiator also comprises a cooling fan, and this cooling fan is installed in the radiator outside, and cooling fan is electrically connected with temperature-control circuit.
Described semiconductor cooler is installed on the face of metal body, on 2 planes of symmetry or on 4 faces.
The position at close experimental section runner on metal body is opened in described temperature sensor mounted hole.
When described experiment thing was liquid, with in the capillary, this capillary front end connected a precooling/heat pipe with its experiment of packing into, and the rear end connects the glass tube of a metering usefulness, and this pipe inserts in the experimental section runner.
The utility model utilizes that semiconductor cooling device not only can freeze, after the power supply reversal connection but also the characteristics that can heat, cooling or heating of metal body.Temperature sensor is housed on the metal body, design temperature on temperature measurement signal and the temperature control instrument relatively after, by the connection direction and the turn-on time of control circuit control semiconductor cooling device power supply, allow within the fluctuation range thereby temperature of metal body is controlled at design temperature, thereby provide required temperature environment for experimental section.
Advantage of the present utility model is:
The adjustable thermostatic device that is used for the micro liquid flowing experiment of the present utility model regulates with the experiment space air of present use or local controlled temperature cabinet is compared, the utlity model has heating and refrigeration dual-use function, thermoregulation range is wide, can reach 0-50 ℃, even wider, also have series of advantages such as temperature adjustment speed is fast, accuracy of temperature control is high, power is little, energy-conservation.
Description of drawings
Fig. 1 is the adjustable thermostatic apparatus structure schematic diagram that is used for the micro liquid flowing experiment of the present invention
Drawing is described as follows:
1. metal body 2. semiconductor coolers 3. radiators
4. cooling fan 5,6. insulation layer; 7. temperature sensor
8. temperature control instrument 9. temperature-control circuits 10. dc sources
11. precooling/heat pipe 12. capillaries 13. experimental section runners
14. the glass tube of metering usefulness
Embodiment 1
Press accompanying drawing 1 and make a miniature adjustable thermostatic device, the rectangular copper of getting a block length 180mm is as metal body 1, and its sectional area is 50mm * 50mm; Make a call to the hole that a diameter is 4mm along long side direction in the middle, as the experimental section runner 13 of placing the experiment thing, in experimental section runner 13, insert one precooling/heat pipe 11, and the front end of this pipe is exposed at outside the metal body 1, terminal and diameter is that the 0.1mm-4mm experiment is joined with capillary 12, and this capillary rear end connects the glass tube 14 of a metering usefulness.On the top of metal body 1 and have between the radiator 3 of fin a plate semiconductor cooler 2 is installed, perhaps a cooling fan 4 can also be installed on radiator 3 again.The position of metal body 1 except that end face is installed semiconductor cooling device all coats with insulation layer 5,6.In addition, be 4mm size duct open a diameter that inserts temperature sensor 7 again near the position of experimental section runner 13; This temperature sensor 7 is electrically connected with temperature control instrument 8; Radiator 3 is electrically connected with temperature-control circuit 9; This temperature-control circuit 9 is electrically connected with dc source 10 and temperature control instrument 8 respectively.Wherein control circuit 9 is common temperature control circuits, and semiconductor cooler 2 is the thick 4mm of a long 40mmx that buy on the market; All the other temperature sensors 7, dc source 10, temperature control instrument all are to buy on the market.
On the device of embodiment 1, adorn a plate semiconductor cooling device 2 again in the bottom surface of metal body 1; Cooling fan 4 is equipped with in the heat radiator fin outside; In the hole that temperature sensor 7 is contained on the metal body to be opened; Conventional temperature control instrument 8 is controlled the connection direction and the turn-on time of dc source 10 by control circuit 9.When the metal body temperature was higher than the design temperature of temperature control instrument, the side that semiconductor cooling device is attached to metal body was a cold junction, and a side of close radiator is the hot junction.Semiconductor cooling device makes the metal body cooling during energising; When the metal body temperature is lower than design temperature, connect direction by changing dc source, the side that semiconductor cooler is attached to metal body becomes the hot junction, thereby to the metal body heating, its temperature is controlled at design temperature allows within the fluctuation range.Temperature control instrument 8 can be selected the corresponding auxiliary products and the different circuit design that can satisfy above-mentioned control temperature requirement for use with control circuit 9 and dc source 10.
Claims (5)
1. miniature adjustable thermostatic device; Comprise: dc source (10), temperature control instrument (8), temperature-control circuit (9) and temperature sensor (7); It is characterized in that: also comprise a metal body (1), at least one block semiconductor refrigerator (2), radiator (3), cooling fan (4) and insulation material thermal insulation layer (5,6); Wherein have the experimental section runner (13) of the experimental section that can place need temperature adjustment temperature control and the hole of laying temperature sensor (7) on the metal body (1), semiconductor cooler (2) is installed on the surface of metal body (1), radiator (3) is installed in above the semiconductor cooler (2), and the place of the metal body outside except that semiconductor cooling device is installed all uses insulation material thermal insulation layer (5,6) to be coated on the metal body outside; This temperature sensor (7) is electrically connected with temperature control instrument (8); Radiator (3) is electrically connected with temperature-control circuit (9); This temperature-control circuit (9) is electrically connected with dc source (10) and temperature control instrument (8) respectively.
2. miniature adjustable thermostatic device according to claim 1 is characterized in that: also comprise a cooling fan, this cooling fan (4) is installed in radiator (3) outside, and cooling fan is electrically connected with temperature-control circuit (9).
3. miniature adjustable thermostatic device according to claim 1, it is characterized in that: when the experiment thing is liquid, its experiment of packing into is used in the capillary (12), capillary (12) front end connects a precooling/heat pipe (11), the rear end connects the glass tube of a metering usefulness, and this pipe inserts in the experimental section runner (13).
4. miniature adjustable thermostatic device according to claim 1 is characterized in that: described semiconductor cooler (2) is installed in respectively on the face of metal body, on 2 planes of symmetry or on 4 faces.
5. miniature adjustable thermostatic device according to claim 1 is characterized in that: the position of close experimental section runner (13) on metal body is opened in described temperature sensor mounted hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02285489 CN2573068Y (en) | 2002-09-06 | 2002-11-20 | Miniature adjustable thermostat |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN022537406 | 2002-09-06 | ||
| CN02253740 | 2002-09-06 | ||
| CN 02285489 CN2573068Y (en) | 2002-09-06 | 2002-11-20 | Miniature adjustable thermostat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2573068Y true CN2573068Y (en) | 2003-09-17 |
Family
ID=34065113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02285489 Expired - Lifetime CN2573068Y (en) | 2002-09-06 | 2002-11-20 | Miniature adjustable thermostat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2573068Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101103937B (en) * | 2006-07-10 | 2012-03-21 | 广州保瑞医疗技术有限公司 | External circulation heat perfusion therapeutic instrument |
| CN102149474B (en) * | 2008-08-01 | 2014-12-24 | 艾本德股份有限公司 | Heating/cooling device having opportunity for testing and method for testing a heating/cooling device |
| CN106861779A (en) * | 2017-02-20 | 2017-06-20 | 广东工业大学 | A kind of segmented micro-fluidic chip temperature regulating device |
| CN107899630A (en) * | 2017-12-20 | 2018-04-13 | 重庆骄直电气有限公司 | Laboratory thermostat |
| CN114510088A (en) * | 2022-02-18 | 2022-05-17 | 安徽庆宇光电科技有限公司 | Small-size constant temperature control system and online air detector thereof |
-
2002
- 2002-11-20 CN CN 02285489 patent/CN2573068Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101103937B (en) * | 2006-07-10 | 2012-03-21 | 广州保瑞医疗技术有限公司 | External circulation heat perfusion therapeutic instrument |
| CN102149474B (en) * | 2008-08-01 | 2014-12-24 | 艾本德股份有限公司 | Heating/cooling device having opportunity for testing and method for testing a heating/cooling device |
| CN106861779A (en) * | 2017-02-20 | 2017-06-20 | 广东工业大学 | A kind of segmented micro-fluidic chip temperature regulating device |
| CN107899630A (en) * | 2017-12-20 | 2018-04-13 | 重庆骄直电气有限公司 | Laboratory thermostat |
| CN114510088A (en) * | 2022-02-18 | 2022-05-17 | 安徽庆宇光电科技有限公司 | Small-size constant temperature control system and online air detector thereof |
| CN114510088B (en) * | 2022-02-18 | 2023-08-15 | 安徽庆宇光电科技有限公司 | Small-sized constant temperature control system and on-line air detector thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20050629 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20050629 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |