CN207215307U - The double remaining temperature-sensing element (device)s of enwinding type - Google Patents
The double remaining temperature-sensing element (device)s of enwinding type Download PDFInfo
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- CN207215307U CN207215307U CN201720881094.7U CN201720881094U CN207215307U CN 207215307 U CN207215307 U CN 207215307U CN 201720881094 U CN201720881094 U CN 201720881094U CN 207215307 U CN207215307 U CN 207215307U
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- platinum filament
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Abstract
The double remaining temperature-sensing element (device)s of a kind of enwinding type provided by the utility model, it is desirable to provide a kind of high resolution, small size, the enwinding type temperature-sensing element (device) of high response.The utility model is achieved by following technical proposals：At least four lines and around platinum filament（2）It is wound in and is wrapped in metallic framework（1）The insulation liner film of cylinder（5）On, by being fixed on metallic framework（1）The lug plate of ring cloth on tail end（3）, from lead-out wire（4）Two groups of double remaining signals are drawn with one end output.The temperature signal experienced is converted into resistance with temperature relation close to linear resistance signal by the utility model, improves response speed and bigger sensitivity resistor rate of the thermal resistance in the range of whole measurement temperature.Using the resistance value and temperature of metal platinum into certain functional relation, ambient temperature can be converted into available resistance signal.With small volume, high resolution, high reliability, high response, very strong mechanical resistant environment capacity.
Description
Technical field
It the utility model is related to a kind of high-resolution, the double remaining temperature-sensing element (device)s of the enwinding type of high response.
Background technology
Thermal resistance sensor can be divided into metal fever resistance by the difference of resistance-temperature characterisitic and semiconductor heat resistance two is big
Class.Metal fever resistance is typically called thermal resistance, and semiconductor heat resistance is called thermistor.The resistivity of metal can be with temperature
The change of degree and change.For most metals when temperature raises 1 degree Celsius, its resistance value will increase by 0.4%~0.6%.Metal energy
Temperature change is converted into the change of resistance, conversely, corresponding temperature can be measured by the resistance variations of metal.Utilize heat
This transfer principle of resistance, not only makes thermal resistance can be applied to temperature survey, it may also be used for flow, speed, concentration and density
Deng the measurement of parameter.Thermal resistance material and require that thermal resistance is made up of parts such as hot water radiation wire, insulation framework, lead-out wires, wherein
Hot water radiation wire is the main body of thermal resistance, and the material of hot water radiation wire should typically meet following requirements, and temperature-coefficient of electrical resistance is big, to carry
The sensitivity resistor rate of high thermal resistance is as big as possible, small to reduce resistance size thermal capacity under same sensitivity, so as to
The response speed of thermal resistance is improved in the range of whole measurement temperature, should have stable physical and chemical properties resistance and temperature
Relation it is preferably close to linear.Temperature sensor is mainly made up of temperature-sensitive element.Temperature-sensitive element is various in style, there is bimetallic
Piece, copper thermistor, platinum resistance thermometer sensor, thermocouple and semiconductor thermistor etc..Temperature using semiconductor thermistor as detecting element
Spend sensor application it is extensive because element allow condition of work in the range of, semiconductor thermistor utensil have small volume,
The characteristics of high sensitivity, high precision, and manufacturing process is simple, cheap.The operation principle of semiconductor thermistor is by temperature
Degree performance thermistor can be divided into two classes, and it is semistor that it is increased, which to rise resistance, with temperature, otherwise is subzero temperature
Spend coefficient resistance.Temperature-sensing element (device) is the temperature-sensitive element for having response and translation function to ambient temperature or heat radiation.
The performance and the very big difference of metallic conductor, the resistance of metallic conductor of semiconductor thermistor performance are uprised and increased with temperature, and
General thermistor and metallic conductor are opposite.The resistance of thermistor reduces with the rise of temperature.Prior art enwinding type
Temperature-sensing element (device) resolving power is relatively low, and resistance value is 100 Ω typically at 0 DEG C and volume is larger, it is slower to respond.With technology
Development, be badly in need of a kind of high resolution, small size, the temperature-sensing element (device) of high response.
The purpose of this utility model is to further development and the improvement of existing enwinding type temperature-sensing element (device) technology.It is sensitive
Degree is high, response is fast, stability is good.
The content of the invention
The purpose of this utility model is in place of above-mentioned the shortcomings of the prior art, there is provided a kind of high resolution, small
Volume, the enwinding type temperature-sensing element (device) of high response.
The purpose of this utility model can be reached by following measures.A kind of enwinding type provided by the utility model is double remaining
Temperature-sensing element (device) is spent, including：It is wound on the platinum filament 2 and lead-out wire 4 of metallic framework 1, it is characterised in that：At least four lines and around platinum
Silk 2, which is wound in, to be wrapped on the insulation liner film 5 of the cylinder of metallic framework 1, by being fixed on ring cloth on the tail end of metallic framework 1
Lug plate 3, two groups of double remaining signals are drawn from lead-out wire 4 with one end output.
The utility model has the effect that compared to prior art.
Resolving power is high, small volume.The utility model is on the metallic framework 1 using four lines and the coiling simultaneously by the way of
Two groups thinner compared to prior art platinum filament of 2 diameters of platinum filament≤0.01mm, it is this using four lines and by the way of, in identical spirit
Reduce resistance size thermal capacity under sensitivity.Under identical resistance size thermal capacity, compared to prior art copper thermistor, platinum
It is sensitive that thermal resistance monofilament or mariages are wound on the smaller about tradition of the single remaining temperature-sensing element (device) volume formed in insulation framework
The 1/3 of component size, temperature-coefficient of electrical resistance is bigger, and the resistance value of output is higher.And using the metal bone of metallic framework coiling
Frame intensity is big, and good, corrosion-resistant, the very strong mechanical resistant environment capacity of rigidity, caused high sensitivity, precision are high.
Resolving power is higher, and response is faster.The utility model is using four lines and around platinum filament 2 by being fixed on the tail of metallic framework 1
The lug plate 3 of ring cloth on end, two groups of double remaining signals are drawn from lead-out wire 4 with one end output.Two groups finally same from metallic framework 1
The double remaining signals of one end output, have stable physical and chemical properties using metal platinum, temperature-coefficient of electrical resistance is big, 0 DEG C when electricity
Resistance is 500 Ω temperature-resistance characteristic, and the temperature signal experienced is converted into resistance and temperature relation close to linear
Resistance signal, improve response speed and bigger sensitivity resistor rate of the thermal resistance in the range of whole measurement temperature.
Brief description of the drawings
Fig. 1 is the organigram of the double remaining temperature-sensing element (device)s of the utility model enwinding type.
In figure：1 metallic framework, 2 platinum filaments, 3 lug plates, 4 lead-out wires, 5 insulation liner films, 6 outer layer insulation films, 7 is exhausted
Edge film, 8 high strength fibre silks.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples, but is not therefore limited in the utility model
Among described scope of embodiments.
Such as Fig. 1.A kind of double remaining temperature-sensing element (device)s of enwinding type provided by the utility model, including：It is wound on metal bone
The platinum filament 2 and lead-out wire 4 of frame 1, mainly by metallic framework 1, platinum filament 2, lug plate 3, lead-out wire 4, insulation liner film 5, high-strength
Degree filament 8 forms.Wherein, at least four lines and the insulation liner film 5 for being wrapped in the cylinder of metallic framework 1 is wound in around platinum filament 2
On, by being fixed on the lug plate 3 of ring cloth on the tail end of metallic framework 1, two groups of double remaining letters are drawn from lead-out wire 4 with one end output
Number.To improve precision of the temperature-sensing element (device) under high and low temperature environment, under high and low temperature environment, metallic framework 1 is expanded by line
The hollow structure of the coefficient metal material manufacture close with platinum filament 2, and the platinum filament 2 being wound on metallic framework 1, phase that both lines are swollen
Matching.A diameter of≤0.01mm before the coiling of platinum filament 2, resistance value at 0 DEG C is 500 Ω.
The outer surface of metallic framework 1 is uniform and smooth, is coated with one layer coated with one layer of insulated paint, drying insulated paint surface thereon
The adhesive of bonding cladding insulation liner film 5.Four fairleads are evenly equipped with insulation liner film 5.Insulation liner film 5 wraps
Overlay on metallic framework 1.Four line gap uniformities, two groups not overlapped mutually and around the coiling of platinum filament 2, respectively from insulation liner film
Drawn in 5 four fairleads.Four terminations of platinum filament 2 are fixed with special fixture after the completion of coiling.Temperature is sensitive
Element is put into insulating box or thermostat carries out just pace value, and every group of resistance signal output valve for ensureing temperature-sensing element (device) is 500
Ω+0.5Ω.Because platinum filament 2 can not be joined directly together with lead-out wire 4, therefore platinum filament 2 is respectively welded at lug plate made of metal material
Transition is carried out on 3.4 lead-out wires 4 are respectively welded on lug plate 3, length of lead-out wire can be according to adjustment be actually needed, with height
Strength silk is fixed.To ensure the insulating properties between lug plate 3 and metallic framework 1, lug plate 3 is by being wrapped in gold
Insulation film 7 on the category afterbody of skeleton 1 separates, and is fixed by the high strength fibre silk 8 of uniform coiling.To ensure temperature-sensing element (device)
The resistance signal output valve of every group of platinum filament 2 be the Ω of 500 Ω ± 0.2, temperature-sensing element (device) is put into insulating box or thermostat enters
The accurate tone pitch of row.The resistance value of platinum filament 2 can be adjusted according to being actually needed.The outer surface of platinum filament 2 will by one layer of adhesive coating
Platinum filament 2 is coated in outer layer insulation film 6.
Metallic framework 1 is the hollow knot manufactured by the metal material that linear expansion coefficient and platinum are close and thermal conductivity factor is higher
Structure, the temperature-sensing element (device) are arranged on total temperature probe intracavitary, and outer surface is sealed, and ensures its insulating properties, central hollow
Structure introduces air.The structure makes atmospheric temperature only need to directly be experienced by the metal-insulator skeleton of thin-walled by platinum filament, profit
With the resistance value and temperature of metal platinum into the characteristic of certain functional relation, available resistance signal is exported.With traditional sensitivity member
Part is compared, and the temperature-sensing element (device) has a small volume, about traditional sensing element volume 1/3, the advantages that response is fast.
Claims (7)
1. a kind of double remaining temperature-sensing element (device)s of enwinding type, including：It is wound on metallic framework（1）Platinum filament（2）And lead-out wire
（4）, it is characterised in that：At least four lines and around platinum filament（2）It is wound in and is wrapped in metallic framework（1）The insulation liner film of cylinder
（5）On, by being fixed on metallic framework（1）The lug plate of ring cloth on tail end（3）, from lead-out wire（4）Two are drawn with one end output
The double remaining signals of group.
2. the double remaining temperature-sensing element (device)s of enwinding type according to claim 1, it is characterised in that metallic framework（1）Be by
Linear expansion coefficient and platinum filament（2）The hollow structure of close metal material manufacture, and it is wound on metallic framework（1）On platinum filament
（2）, both lines are swollen to match.
3. the double remaining temperature-sensing element (device)s of enwinding type according to claim 1, it is characterised in that platinum filament（2）Before coiling
A diameter of≤0.01mm, resistance value at 0 DEG C is 500 Ω.
4. the double remaining temperature-sensing element (device)s of enwinding type according to claim 1, it is characterised in that metallic framework（1）Appearance
Face is uniform and smooth, coats insulation liner film coated with one layer of bonding coated with one layer of insulated paint, drying insulated paint surface thereon
（5）Adhesive.
5. the double remaining temperature-sensing element (device)s of enwinding type according to claim 1, it is characterised in that four line gap uniformities, mutually
Do not overlap two groups and around platinum filament（2）Coiling, respectively from insulation liner film（5）Drawn in four fairleads.
6. the double remaining temperature-sensing element (device)s of enwinding type according to claim 1, it is characterised in that lug plate（3）Pass through bag
It is rolled in metallic framework（1）Insulation film on afterbody（7）Separate, by the high strength fibre silk of uniform coiling（8）It is fixed.
7. the double remaining temperature-sensing element (device)s of enwinding type according to claim 1, it is characterised in that platinum filament（2）Outer surface leads to
One layer of adhesive coating is crossed by platinum filament（2）It is coated on outer layer insulation film（6）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720881094.7U CN207215307U (en) | 2017-07-20 | 2017-07-20 | The double remaining temperature-sensing element (device)s of enwinding type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720881094.7U CN207215307U (en) | 2017-07-20 | 2017-07-20 | The double remaining temperature-sensing element (device)s of enwinding type |
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| Publication Number | Publication Date |
|---|---|
| CN207215307U true CN207215307U (en) | 2018-04-10 |
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| CN201720881094.7U Active CN207215307U (en) | 2017-07-20 | 2017-07-20 | The double remaining temperature-sensing element (device)s of enwinding type |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896198A (en) * | 2018-05-14 | 2018-11-27 | 北京航空航天大学 | A kind of straight-bar type total temperature end of probe based on thermal resistance |
| CN109282910A (en) * | 2017-07-20 | 2019-01-29 | 成都凯天电子股份有限公司 | Double redundancy temperature-sensing element (device) |
-
2017
- 2017-07-20 CN CN201720881094.7U patent/CN207215307U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282910A (en) * | 2017-07-20 | 2019-01-29 | 成都凯天电子股份有限公司 | Double redundancy temperature-sensing element (device) |
| CN108896198A (en) * | 2018-05-14 | 2018-11-27 | 北京航空航天大学 | A kind of straight-bar type total temperature end of probe based on thermal resistance |
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