CN203630639U - Thermostatic device for current sampling - Google Patents
Thermostatic device for current sampling Download PDFInfo
- Publication number
- CN203630639U CN203630639U CN201320703531.8U CN201320703531U CN203630639U CN 203630639 U CN203630639 U CN 203630639U CN 201320703531 U CN201320703531 U CN 201320703531U CN 203630639 U CN203630639 U CN 203630639U
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- CN
- China
- Prior art keywords
- temperature
- current sampling
- fan
- heating unit
- electric heating
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- 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
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 19
- 238000005485 electric heating Methods 0.000 claims abstract description 15
- 239000000853 adhesive Substances 0.000 claims abstract description 4
- 230000001070 adhesive effect Effects 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 15
- 229920000642 polymer Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009529 body temperature measurement Methods 0.000 abstract 2
- 230000005494 condensation Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 241001274961 Rubus repens Species 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
A thermostatic device for current sampling comprises a radiator, a sampling resistor, a fan, an electric heating unit and a MCU control board. The sampling resistor is adhered below the radiator through adhesive and is provided with a temperature sensor. The fan is fixed to the outer side wall of the radiator, and the electric heating unit is arranged in the inner upper part of the radiator. The MCU control board includes a temperature control module and a temperature measurement module, wherein the temperature control module is respectively connected with the electric heating unit and the fan, and the temperature measurement module is connected with the temperature sensor. By the adoption of the thermostatic device, the influence of temperature drift to current sampling can be effectively reduced, the problem of condensation dew can be solved, and ultra-high-precision current sampling is realized. The thermostatic device has the advantage of low production cost.
Description
Technical field
The utility model is specifically related to a kind of current sampling thermostat.
Background technology
Modal in current sampling field have a sample resistance, because sample resistance itself is a resistance, thus can produce heat by consumed energy, thus the temperature of rising sample resistance; Environment temperature also can directly cause the variation of sample resistance temperature; Because sample resistance is not desirable device, sample resistance exists temperature and wafts, and temperature variation can cause the value of sampling to depart from actual value.
If use the warm less sample resistance that wafts, can increase cost by straight line, and improve limited; If use software temperature compensation, it is all nonlinear wafing due to the temperature of resistance, and discreteness is large, and it is limited that benefit is tasted effect, sometimes runs counter to desire; If use electronic heat sink to carry out temperature control, but though electronic heat sink to low temperature constant temperature, or high-temperature constant temperature, all can have the problem of just condensing dewdrop, dewdrop to the harm of electronic equipment to life.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of current sampling thermostat, can effectively reduce the impact that temperature is waftd on current sampling, and there will not be the phenomenon of the dewdrop that condenses.
The utility model solves the problems of the technologies described above by the following technical programs: a kind of current sampling thermostat, comprises heating radiator, sample resistance, fan, electric heating unit and MCU control panel; Described sample resistance is by polymer adhesive in the below of heating radiator, and this sample resistance is provided with a temperature sensor; Described fan is fixed on the lateral wall of heating radiator, and described electric heating unit is located at the internal upper part of heating radiator; Described MCU control panel comprises a temperature control modules and a temperature-measuring module; This temperature control modules is connected respectively with electric heating unit, fan; Described temperature-measuring module is connected with temperature sensor.
Preferably, described electric heating unit is at least one electrothermal tube or a plurality of resistance.
The beneficial effects of the utility model are: can effectively reduce the impact that temperature is waftd on current sampling, and solve the problem of dew of condensing, thereby realize the current sampling of superhigh precision, and the utility model production cost is cheaper.
Accompanying drawing explanation
The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the structural representation of a kind of current sampling of the utility model thermostat.
Embodiment
Refer to Fig. 1, a kind of current sampling thermostat, comprises heating radiator 2, sample resistance 1, fan 4, electric heating unit and MCU control panel 6; Described sample resistance 1 is by polymer adhesive in the below of heating radiator 2, and this sample resistance 1 is provided with a temperature sensor 5; Described fan 4 is fixed on the lateral wall of heating radiator 2, and described electric heating unit is located at the internal upper part of heating radiator 2; Described MCU control panel 6 comprises a temperature control modules 7 and a temperature-measuring module 8; This temperature control modules 7 is connected respectively with electric heating unit, fan 4; Described temperature-measuring module 8 is connected with temperature sensor 5.Described electric heating unit is preferably at least one electrothermal tube 3 or a plurality of resistance.
Referring again to Fig. 1, described temperature sensor 5 is for being electric quantity signal by the temperature transition of sample resistance 1, and sends to temperature-measuring module 8; Described temperature-measuring module 8 changes into actual temperature for a described electric quantity signal receiving, and described temperature is shown.
Referring again to Fig. 1, in the time of the work of application the utility model, (can use epoxy resin or heat conductive silica gel to be connected) links into an integrated entity sample resistance 1 with heating radiator 2, serviceability temperature sensor 5 gathers the temperature of sample resistance 1 and sends to temperature-measuring module 8, temperature control electrothermal tube 3 or fan 4 that MCU control panel 6 shows according to temperature-measuring module 8 move, if temperature lower than 55 ℃, is controlled electrothermal tube 3, heating radiator 2 is heated, thus the temperature of lifting sample resistance 1; If temperature is higher than 55 ℃, MCU control panel 6 by fan 4, heating radiator 2 is carried out air-cooled, thereby reduce sample resistance 1 temperature, temperature constant, 55 ℃ of left and right, is waftd thereby reduce to greatest extent temperature the most at last.
Claims (2)
1. a current sampling thermostat, is characterized in that: comprise heating radiator, sample resistance, fan, electric heating unit and MCU control panel; Described sample resistance is by polymer adhesive in the below of heating radiator, and this sample resistance is provided with a temperature sensor; Described fan is fixed on the lateral wall of heating radiator, and described electric heating unit is located at the internal upper part of heating radiator; Described MCU control panel comprises a temperature control modules and a temperature-measuring module; This temperature control modules is connected respectively with electric heating unit, fan; Described temperature-measuring module is connected with temperature sensor.
2. a kind of current sampling thermostat as claimed in claim 1, is characterized in that: described electric heating unit is at least one electrothermal tube or a plurality of resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320703531.8U CN203630639U (en) | 2013-11-08 | 2013-11-08 | Thermostatic device for current sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320703531.8U CN203630639U (en) | 2013-11-08 | 2013-11-08 | Thermostatic device for current sampling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203630639U true CN203630639U (en) | 2014-06-04 |
Family
ID=50817098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320703531.8U Expired - Lifetime CN203630639U (en) | 2013-11-08 | 2013-11-08 | Thermostatic device for current sampling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203630639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398584A (en) * | 2018-04-12 | 2018-08-14 | 彭浩明 | current sampling structure and switching device |
-
2013
- 2013-11-08 CN CN201320703531.8U patent/CN203630639U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398584A (en) * | 2018-04-12 | 2018-08-14 | 彭浩明 | current sampling structure and switching device |
| CN108398584B (en) * | 2018-04-12 | 2024-07-30 | 彭浩明 | Current sampling structure and switching device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: FUJIAN NEBULA ELECTRONIC CO., LTD. Free format text: FORMER NAME: FUZHOU DEVELOPMENT ZONE XINGYUN ELECTRONIC AUTOMATION CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 350000 Productivity Promotion Center, 8 star road, Mawei District, Fujian, Fuzhou 3, China, 304 Patentee after: FUJIAN NEBULA ELECTRONICS Co.,Ltd. Address before: 350000 Productivity Promotion Center, 8 star road, Mawei District, Fujian, Fuzhou 3, China, 304 Patentee before: FUZHOU DEVELOPMENT ZONE XINGYUN ELECTRONIC AUTOMATION Co.,Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Mawei District 350000 Fujian city of Fuzhou province Kuaian Majiang Shishi Avenue Road No. 6 1-4 floor Patentee after: FUJIAN NEBULA ELECTRONICS Co.,Ltd. Address before: 350000 Productivity Promotion Center, 8 star road, Mawei District, Fujian, Fuzhou 3, China, 304 Patentee before: FUJIAN NEBULA ELECTRONICS Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term |