CN201926520U - Platinum resistor temperature sensor with shielding wire - Google Patents
Platinum resistor temperature sensor with shielding wire Download PDFInfo
- Publication number
- CN201926520U CN201926520U CN2010206307928U CN201020630792U CN201926520U CN 201926520 U CN201926520 U CN 201926520U CN 2010206307928 U CN2010206307928 U CN 2010206307928U CN 201020630792 U CN201020630792 U CN 201020630792U CN 201926520 U CN201926520 U CN 201926520U
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- CN
- China
- Prior art keywords
- protection tube
- temperature sensor
- wire
- shielding line
- conducting wire
- 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
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a platinum resistor temperature sensor with a shielding wire. The platinum resistor temperature sensor is composed of a temperature measuring chip (1), a protection tube (2), filled heat conducting material (3), a conducting wire (4), a conducting wire protecting outer skin (7) and a mounting nut (5), the conducting wire protecting outer skin (7) is sleeved outside the conducting wire (4), the temperature measuring chip (1) and the filled heat conducting material (3) are both arranged in a cavity of the protection tube (2), the conducting wire (4) is connected with the temperature measuring chip (1), and the mounting nut (5) is arranged outside the rear end of the protection tube (2). The platinum resistor temperature sensor is characterized in that the shielding wire (8) is sleeved on the conducting wire (4) in the conducting wire protecting sheath (7), and the front end of the shielding wire (8) is inserted into the middle part of the cavity of the protection tube (2) and is fixed with the protection tube (2). The platinum resistor temperature sensor is simple to operate, is convenient to use, has high reliability, and enhances the intensity and the tensile property of the conducting wire of the sensor.
Description
Technical field
The utility model relates to the improvement with platinum resistance temperature sensor of a kind of calorimeter, and specifically a kind of platinum resistance temperature sensor with shielding line is applicable in the calorimeter measurement to temperature.
Background technology
At present, utilizing platinum resistance temperature sensor to measure temperature in the calorimeter is a kind of proven technique, is widely used.This platinum resistance temperature sensor is by two core leads, protection tube, the thermometric chip, filling Heat Conduction Material and erecting device constitutes, wherein protection tube mainly adopts stainless steel, by hold down gag protection tube is pressed on the lead, in protection tube, be provided with the filling Heat Conduction Material, thereby play the effect of protection thermometric chip, adopt the weak point of the platinum resistance temperature sensor of this structure to be: to use because the calorimeter platinum resistance temperature sensor is pairing, be defined as inflow temperature sensor and return water temperature sensor respectively, the inflow temperature sensor is installed in the water inlet pipe of heat supply pipeline, the return water temperature sensor is installed in the return pipe of heat supply pipeline, because the complicacy of its applied environment, might between the water inlet pipe of heat supply pipeline and return pipe, there be potential difference (PD), will be on the stainless steel film resistance protection pipe of platinum resistance temperature sensor stored charge, thereby can be between resistance wire coupling capacitance, influence the collection of platinum resistance temperature sensor, thereby influence the quantification stability and the precision of calorimeter temperature; Simultaneously, when calorimeter detects and examine and determine, can there be potential difference (PD) because of carrying out good earth between the pick-up unit, can has the uncertainty of verification result like this for the calibrating of calorimeter yet.
Summary of the invention
The purpose of this utility model is to provide a kind of platinum resistance temperature sensor of band shielding line of simple in structure, esy to use, safe and reliable, stable performance.
For reaching above purpose; the technical scheme that the utility model adopted is: the platinum resistance temperature sensor of this band shielding line; by the thermometric chip; protection tube; fill Heat Conduction Material; lead; wire-protecting crust and installation nut constitute; the outer cover of lead is provided with the wire-protecting crust; thermometric chip and filling Heat Conduction Material all are located in the chamber of protection tube; lead is connected with the thermometric chip from the opening insertion protection tube inner chamber front end of protection tube rear end; nut is installed is located at outside, protection tube rear end; it is characterized in that: be arranged with shielding line on the lead of the outer intracutaneous of described wire-protecting; the front end of shielding line inserts protection tube inner chamber middle part, and is fixed together with protection tube.
The utility model is also implemented by following measure: described protection tube, make by stainless steel material, and be provided with three encapsulation scrobicular rings at the rear portion of protection tube.
Junction between described installation nut and the protective sleeve is provided with the fixed pin bar, and the fixed pin bar is made by stainless steel.
Beneficial effect of the present invention is: compare with the platinum resistance temperature sensor of present use, simple to operate, easy to use, the reliability height, owing to the stainless steel protection pipe is connected with the calorimeter shell by shielding line, thereby the electric charge that will be accumulated in the stainless steel protection pipe is discharged in the earth, reduces the influence of external interference to temperature acquisition, improves the measuring accuracy of calorimeter; Also can strengthen simultaneously the intensity and the tensile property of sensor conductor.
Description of drawings
Fig. 1 is that axis of no-feathering of the present utility model is to cross-sectional schematic.
Among the figure: 1, thermometric chip; 2, protection tube; 3, fill Heat Conduction Material; 4, lead; 5, nut is installed; 6, fixed pin bar; 7, wire-protecting crust; 8, shielding line; 9, encapsulation scrobicular ring.
Embodiment
Make the utility model with reference to accompanying drawing 1.The platinum resistance temperature sensor of this band shielding line; by thermometric chip 1; protection tube 2; fill Heat Conduction Material 3; lead 4; wire-protecting crust 7 and installation nut 5 constitute; the outer cover of lead 4 is provided with wire-protecting crust 7; so that lead 4 is played a protective role; thermometric chip 1 and filling Heat Conduction Material 3 all are located in the chamber of protection tube 2; lead 4 is connected with thermometric chip 1 from the opening insertion protection tube 2 inner chamber front ends of protection tube 2 rear ends; nut 5 is installed is located at outside, protection tube 2 rear end; so that protection tube 2 of the present utility model is fixed on the thermometric place by nut 5 is installed; it is characterized in that: be arranged with shielding line 8 on the lead 4 in the described wire-protecting crust 7; the front end of shielding line 8 inserts protection tube 2 inner chambers middle part; and be fixed together with protection tube 2; because protection tube 2 and shielding line 8 full contacts; the other end of shielding line 8 links to each other with the flowmeter shell; the electric charge that is accumulated in protection tube 2 is discharged in the earth by the flowmeter shell; reduce the influence of external interference to temperature acquisition; improve the measuring accuracy of calorimeter, this design simultaneously also can strengthen the intensity and the tensile property of sensor conductor.
Described protection tube 2 is made by stainless steel material, is provided with three encapsulation scrobicular rings 9 at the rear portion of protection tube 2, and these encapsulation scrobicular rings 9 extrude by roll squeezer, and protection tube 2, shielding line 8 and lead 4 tightly are enclosed in together.
Junction between described installation nut 5 and the protective sleeve 2 is provided with fixed pin bar 6; fixed pin bar 6 is made by stainless steel; during making, fixed pin bar 6 is inserted into from the rear end that nut 5 is installed and installs between nut 5 and the protective sleeve 2, thereby the rear end that nut 5 is fixed on protective sleeve 2 will be installed.
Claims (3)
1. platinum resistance temperature sensor with shielding line; by thermometric chip (1); protection tube (2); fill Heat Conduction Material (3); lead (4); wire-protecting crust (7) and installation nut (5) constitute; the outer cover of lead (4) is provided with wire-protecting crust (7); thermometric chip (1) and filling Heat Conduction Material (3) all are located in the chamber of protection tube (2); lead (4) is connected with thermometric chip (1) from opening insertion protection tube (2) the inner chamber front end of protection tube (2) rear end; nut (5) is installed is located at protection tube (2) outside, rear end; it is characterized in that: be arranged with shielding line (8) on the lead (4) in the described wire-protecting crust (7); the front end of shielding line (8) inserts protection tube (2) inner chamber middle part, and is fixed together with protection tube (2).
2. the platinum resistance temperature sensor of band shielding line according to claim 1 is characterized in that: described protection tube (2) is provided with three encapsulation scrobicular rings (9) at the rear portion of protection tube (2).
3. the platinum resistance temperature sensor of band shielding line according to claim 1 is characterized in that: the junction between described installation nut (5) and the protective sleeve (2) is provided with fixed pin bar (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206307928U CN201926520U (en) | 2010-11-30 | 2010-11-30 | Platinum resistor temperature sensor with shielding wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206307928U CN201926520U (en) | 2010-11-30 | 2010-11-30 | Platinum resistor temperature sensor with shielding wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201926520U true CN201926520U (en) | 2011-08-10 |
Family
ID=44430365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206307928U Expired - Fee Related CN201926520U (en) | 2010-11-30 | 2010-11-30 | Platinum resistor temperature sensor with shielding wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201926520U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997217A (en) * | 2017-04-28 | 2017-08-01 | 济宁五颗星表计有限公司 | Homestat is measured in temperature control |
| CN107990994A (en) * | 2017-11-09 | 2018-05-04 | 中国科学院长春光学精密机械与物理研究所 | A kind of multichannel Pt Resistance Temperature Measuring Circuit and method |
| CN109714942A (en) * | 2018-11-30 | 2019-05-03 | 青岛中物云传智能科技有限公司 | A kind of sensor-packaging structure and signal pickup assembly |
-
2010
- 2010-11-30 CN CN2010206307928U patent/CN201926520U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997217A (en) * | 2017-04-28 | 2017-08-01 | 济宁五颗星表计有限公司 | Homestat is measured in temperature control |
| CN107990994A (en) * | 2017-11-09 | 2018-05-04 | 中国科学院长春光学精密机械与物理研究所 | A kind of multichannel Pt Resistance Temperature Measuring Circuit and method |
| CN109714942A (en) * | 2018-11-30 | 2019-05-03 | 青岛中物云传智能科技有限公司 | A kind of sensor-packaging structure and signal pickup assembly |
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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 |
Granted publication date: 20110810 Termination date: 20161130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |