CN105043567A - Anti-corrosion temperature sensor - Google Patents
Anti-corrosion temperature sensor Download PDFInfo
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- CN105043567A CN105043567A CN201510407566.0A CN201510407566A CN105043567A CN 105043567 A CN105043567 A CN 105043567A CN 201510407566 A CN201510407566 A CN 201510407566A CN 105043567 A CN105043567 A CN 105043567A
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- layer
- temperature sensor
- stainless steel
- plug
- active metal
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Abstract
The invention provides an anti-corrosion temperature sensor, including a body and a plug which are mutually connected. The body is composed of a protection shell and a thermistor. The thermistor is positioned in the protection shell, and the plug is led out through a lead. The protection shell comprises a stainless steel layer, a graphite layer, an active metal layer and a heat-conducting insulation material layer from outside to inside, wherein the active metal layer refers to metal which is more active than stainless steel. With the adoption of the protection shell structure, the active metal layer is enabled to have a chemical or electrochemical reaction first as electrons of the stainless steel layer are conducted to a magnesium thin sheet layer due to corrosion, thereby reducing the corrosion resistance of the stainless steel layer, and meanwhile, the oxidized active metal layer cannot affect the thermal conductivity of the whole temperature sensor. The invention is simple and reasonable in structure.
Description
Technical field
The present invention relates to a kind of temperature sensor, particularly a kind of corrosion resistant temperature sensor.
Background technology
Temperature sensor refers to can experience temperature and the sensor converting usable output signal to.Temperature sensor is the core of temperature measuring instrument, various in style.Contact and contactless two large classes can be divided into by metering system, be divided into thermal resistance and thermopair two class according to sensor material and electron component characteristic.
At present, common liq temperature sensor is all with stainless steel or copper material encapsulation, plug type profile, be characterized in easy for installation, anti-corrosive properties are strong, common liq temperature sensor uses metal material encapsulation, the level of isolating to thermal sensing element from encapsulation outside surface is more, distant, adds that the volume of metal material is comparatively large, self heat absorption is many.Because temperature survey environment is acid, alkali environment, temperature sensor suffers erosion under acid or alkali environment, and therefore containment vessel cognition get rusty, and the environment of Contamination measurement, meanwhile, the replacing of protective housing also becomes more frequent, and this is unfavorable for long-term temperature observation.Traditional protective housing is stainless steel, but in the environment that some are extreme, therefore stainless steel also can very fast to get rusty etc. need to change, and uses very inconvenient; Complex structure, designs unreasonable.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of corrosion resistant temperature sensor.
The present invention for solving the problems of the technologies described above taked technical scheme is: a kind of corrosion resistant temperature sensor; comprise interconnective body and plug; body is made up of protective housing and thermistor; thermistor is arranged in protective housing; and draw plug by wire; it is characterized in that: described protective housing comprises stainless steel layer, graphite linings, active metal layer and heat-conducting insulation material layer from outside to inside, wherein active metal refers to the metal more active than stainless steel.
By such scheme, described plug is PPR plug.
By such scheme, described heat-conducting insulation material layer is heat-conducting silicone grease.
By such scheme, described active metal layer is magnesium layer.
Beneficial effect of the present invention is:
1, by adopting protective housing structure of the present invention, stainless steel is because the electronic conduction of getting rusty is to magnesium lamella, make active metal layer that chemistry or electrochemical reaction preferentially occur, reduce the corrosion stability of stainless steel layer, meanwhile, the active metal layer of oxidation can not affect the thermal conductivity of whole temperature sensor; The present invention is simple and reasonable for structure.
2, by adopting PPR plug, heat-proof quality is good, recepts the caloric little, can reduce the thermal loss in heat transfer process, improves the sensitivity of temperature sensor.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention;
Fig. 2 is the sectional view of protective housing of the present invention;
Number in the figure: 1, body; 2, thermistor; 3, protective housing; 4, plug; 5, wire; 7, stainless steel layer; 8, graphite linings; 9, active metal layer; 10, heat-conducting insulation material layer.
Embodiment
Below in conjunction with instantiation and accompanying drawing, the present invention will be further described.
A kind of corrosion resistant temperature sensor; as shown in Figure 1; comprise interconnective body 1 and plug 4; body 1 is made up of protective housing 3 and thermistor 2; thermistor 2 is arranged in protective housing 3, and draws plug 4 by wire 5, and described protective housing as shown in Figure 2; comprise stainless steel layer 7, graphite linings 8, active metal layer 9 and heat-conducting insulation material layer 10 from outside to inside, wherein active metal refers to the metal more active than stainless steel.
Preferably, described plug is PPR plug, and heat-proof quality is good, recepts the caloric little, can reduce the thermal loss in heat transfer process.
Preferably, described heat-conducting insulation material layer is heat-conducting silicone grease.
Preferably, described active metal layer is magnesium layer.
Thermistor 2 is packaged within protective housing 3 by heat-conducting insulation material layer 10; and thermistor 2 is isolated; described heat-conducting insulation material layer 10 is heat-conducting silicone grease; stainless steel layer 7 is because the electronic conduction of getting rusty is to magnesium layer 9; magnesium layer 9 is made preferentially chemistry or electrochemical reaction to occur; reduce the corrosion stability of stainless steel layer, meanwhile, the magnesium layer of oxidation can not affect the thermal conductivity of whole temperature sensor.
Above embodiment is only for illustration of design philosophy of the present invention and feature, and its object is to enable those skilled in the art understand content of the present invention and implement according to this, protection scope of the present invention is not limited to above-described embodiment.So all equivalent variations of doing according to disclosed principle, mentality of designing or modification, all within protection scope of the present invention.
Claims (4)
1. a corrosion resistant temperature sensor; comprise interconnective body and plug; body is made up of protective housing and thermistor; thermistor is arranged in protective housing; and draw plug by wire; it is characterized in that: described protective housing comprises stainless steel layer, graphite linings, active metal layer and heat-conducting insulation material layer from outside to inside, wherein active metal refers to the metal more active than stainless steel.
2. a kind of corrosion resistant temperature sensor according to claim 1, is characterized in that: described plug is PPR plug.
3. a kind of corrosion resistant temperature sensor according to claim 1, is characterized in that: described heat-conducting insulation material layer is heat-conducting silicone grease.
4. a kind of corrosion resistant temperature sensor according to claim 1, is characterized in that: described active metal layer is magnesium layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407566.0A CN105043567A (en) | 2015-07-13 | 2015-07-13 | Anti-corrosion temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407566.0A CN105043567A (en) | 2015-07-13 | 2015-07-13 | Anti-corrosion temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105043567A true CN105043567A (en) | 2015-11-11 |
Family
ID=54450290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510407566.0A Pending CN105043567A (en) | 2015-07-13 | 2015-07-13 | Anti-corrosion temperature sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN105043567A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924043A (en) * | 2021-01-26 | 2021-06-08 | 上海精普机电科技有限公司 | Anti-corrosion and anti-radiation thermal resistor |
| CN114211210A (en) * | 2021-12-31 | 2022-03-22 | 上海飞卓智能科技有限公司 | Quick response temperature surface mounting process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200950089Y (en) * | 2006-08-24 | 2007-09-19 | 张勇伟 | Temperature and water level integrated transducer |
| CN101149295A (en) * | 2007-10-26 | 2008-03-26 | 天津工业大学 | Thermistor high resistance lead temperature sensor production method and interference-free temperature sensor |
| DE102008014923A1 (en) * | 2008-03-19 | 2009-09-24 | Epcos Ag | Film sensor and method for producing a film sensor |
| CN203116878U (en) * | 2013-02-06 | 2013-08-07 | 苏巨诗 | Highly-efficient liquid temperature sensor |
| CN204422093U (en) * | 2014-12-20 | 2015-06-24 | 上海森垚工贸有限公司 | High anti-corrosion temperature sensor |
-
2015
- 2015-07-13 CN CN201510407566.0A patent/CN105043567A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200950089Y (en) * | 2006-08-24 | 2007-09-19 | 张勇伟 | Temperature and water level integrated transducer |
| CN101149295A (en) * | 2007-10-26 | 2008-03-26 | 天津工业大学 | Thermistor high resistance lead temperature sensor production method and interference-free temperature sensor |
| DE102008014923A1 (en) * | 2008-03-19 | 2009-09-24 | Epcos Ag | Film sensor and method for producing a film sensor |
| CN203116878U (en) * | 2013-02-06 | 2013-08-07 | 苏巨诗 | Highly-efficient liquid temperature sensor |
| CN204422093U (en) * | 2014-12-20 | 2015-06-24 | 上海森垚工贸有限公司 | High anti-corrosion temperature sensor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924043A (en) * | 2021-01-26 | 2021-06-08 | 上海精普机电科技有限公司 | Anti-corrosion and anti-radiation thermal resistor |
| CN114211210A (en) * | 2021-12-31 | 2022-03-22 | 上海飞卓智能科技有限公司 | Quick response temperature surface mounting process |
| CN114211210B (en) * | 2021-12-31 | 2022-12-09 | 飞卓科技(上海)股份有限公司 | Quick response temperature surface mounting process |
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Application publication date: 20151111 |
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| RJ01 | Rejection of invention patent application after publication |