CN207081497U - A kind of ultralow temperature Multi-point metal shielding thermo-electric - Google Patents
A kind of ultralow temperature Multi-point metal shielding thermo-electric Download PDFInfo
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- CN207081497U CN207081497U CN201721054339.5U CN201721054339U CN207081497U CN 207081497 U CN207081497 U CN 207081497U CN 201721054339 U CN201721054339 U CN 201721054339U CN 207081497 U CN207081497 U CN 207081497U
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- thermocouple
- inner casing
- clad
- electrode line
- line
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Abstract
The utility model discloses a kind of ultralow temperature Multi-point metal shielding thermo-electric, including shell made of stainless steel material, more thermocouple wires being arranged in the shell, multiple it are used to fixing two thermocouple wires and form the inner casing of temperature measuring point and the filler for filling space between the shell, the inner casing and the thermocouple wire；Shell one end closing, the other end are not closed；The every thermocouple wire includes electrode line made of NiCr10 alloy wires and using negative line made of AuFe7 alloy wires；One end of every two thermocouple wires is inserted in the inner casing and is welded together to form soldering tip, and the other end is exposed to outside the unclosed termination of the inner casing；Spacing between two neighboring temperature measuring point is 100 500mm；The filler is the fine and close MgO powder of high-purity；The quantity of the thermocouple wire is twice of temperature measuring point quantity.The utility model has measurement accuracy height, strong antijamming capability under ultra-low temperature surroundings, effectively solves the problems, such as the characteristics of ultralow temperature multi-point temperature measurement.
Description
Technical field
The utility model belongs to temperature element technical field, and in particular to a kind of ultralow temperature Multi-point metal shielding thermo-electric.
Background technology
Thermocouple is a kind of conventional temperature element of field of temperature measurement, is combined into back by the conductor both ends of two kinds of heterogeneities
Lu Shi, when two binding site temperature differences, thermocurrent will be produced in the loop.If thermocouple working end exists with reference end
The temperature difference, display instrument will indicate the temperature value corresponding to thermoelectrical potential caused by thermocouple.The thermoelectrical potential of thermocouple will be with
Measurement end temperature is raised and increased, and its size is only relevant with thermocouple material and both ends temperature, with the length of thermode and directly
Footpath size is unrelated.
Cryogenic technique is not only closely bound up with people's present age high-quality life, while is studied with many most advanced branches of science in the world
(such as superconducting technology, space flight and aeronautical technology, high-energy physics, controlled thermonuclear fusion, far infrared detection, accurate electromagnetic measurement,
Biology and life science etc.) it is inseparable.Under condition of ultralow temperature, marvellous change occurs in the characteristic of material：Air becomes
Into liquid or solid；Biological cell or tissue can be stored without death for a long time；The resistance of conductor disappears-superconducted existing
As and the magnetic line of force cannot pass through superconductor-complete diamagnetism；The viscosity of liquid helium is almost nil-superfluidity, and lead
The hot property characteristic due to material under ultra low temperature state not worse than high purity copper changes, and causes made of conventional thermocouple wire
Thermocouple can not accurate measurement temperature.
The necessity and importance of the accurate measurement of ultralow temperature as can be seen here.Invention one kind can accurately measure ultralow
The Multi-point metal shielding thermo-electric of temperature, it can have in the temperature of same time detecting temperature field difference to high-tech research and production
It is of great importance.
Utility model content
The utility model, because the characteristic of material under ultra low temperature state changes, causes conventional heat for prior art
The thread thermocouple of galvanic couple accurate measurement temperature, the defects of measuring point is single can not provide a kind of ultralow temperature multiple spot armouring
Thermocouple, ultralow temperature Multi-point metal shielding thermo-electric of the present utility model is used to substitute conventional thermocouples, to meet ultra-low temperature surroundings
Multi-point temperature measurement demand.
The purpose of this utility model is achieved through the following technical solutions：
A kind of ultralow temperature Multi-point metal shielding thermo-electric, including shell made of stainless steel material, be arranged in the shell
More thermocouple wires, multiple it are used to fixing two thermocouple wires and form the inner casing of temperature measuring point and described for filling
The filler in space between shell, the inner casing and the thermocouple wire；Shell one end closing, the other end are not closed；Often
Thermocouple wire described in root includes electrode line made of NiCr10 alloy wires and using negative line made of AuFe7 alloy wires；
Inner casing one end closing, the other end are not closed；One end of every two thermocouple wires is inserted in the inner casing and welded
Soldering tip is formed together, and the other end is exposed to outside the unclosed termination of the inner casing；Spacing between two neighboring temperature measuring point is
100-500mm；The filler is the fine and close MgO powder of high-purity；The quantity of the thermocouple wire is the two of temperature measuring point quantity
Times.
Further, the every thermocouple wire is also coated on the electrode line and the clad on the outside of the negative line
And it is arranged at the screen layer on the outside of the clad；The electrode line is arranged side by side with the negative line；The electrode line and institute
State after negative line is respectively coated by one layer of clad, by the electrode line and the negative line and together with coat one layer of cladding again
Layer, is made thermocouple wire；The screen layer is made of silver-coated copper wire, and copper cash string diameter is Φ 0.1mm- Φ 0.3mm, silver plating thicknesses
For 0.003mm-0.005mm.
Further, the material selection polytetrafluoroethylene (PTFE) of the clad.
Further, for the ease of distinguishing both positive and negative polarity during installation, the electrode line and the clad face on the outside of the negative line
Color is different.
Preferably, the color of clad is red on the outside of the electrode line；The color of clad on the outside of the negative line
For black.
Further, for the NiCr10 alloy wires of the electrode line and the AuFe7 for the negative line to be made to be made
The diameter range of alloy is Φ 0.1mm- Φ 0.5mm；The electrode line is identical with the diameter of the negative line.
Compared with prior art, the utility model at least has advantages below：
1st, measurement accuracy is high：Thermocouple wire employs measurement accuracy highest NiCr10-AuFe7, and it measures full accuracy
It can reach ± 0.3 DEG C；Meanwhile under ultra-low temperature surroundings, its stability is high, does not interfere with its measurement temperature；
2nd, thermocouple wire carries out modeling bag with different colours polytetrafluoroethylene (PTFE), easily distinguishes both positive and negative polarity, post-production thermocouple
Also allow for wire stripping and installation；
3rd, one layer of silver-coated copper wire screen layer is wrapped after Double-layer Plastic bag again, it is possible to increase the interference free performance of thermocouple detection, carry
High temperature measurement accuracy.
The 4th, more thermocouple wires are set, form multiple temperature measuring points, can be detected simultaneously on the same straight line of same thermal field
The temperature of multiple points, it can accurately test the Temperature Distribution and uniformity of thermal field；Ultralow temperature multi-point temperature measurement is efficiently solved to ask
Topic.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the structural representation of ultralow temperature Multi-point metal shielding thermo-electric of the present utility model；
Fig. 2 is the sectional view in A sections in Fig. 1；
Fig. 3 is the structural representation of thermocouple wire in Fig. 1.
Description of reference numerals：1- shells；2- thermocouple wires；21- electrode lines；22- negative lines；23- clads；24- is shielded
Layer；3- inner casings；4- packed layers.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only part of the embodiment of the present utility model, rather than all
Embodiment.
Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
In description of the present utility model, " multiple " are meant that at least two, such as two, three etc., unless otherwise
It is clearly specific to limit.
In the utility model, unless otherwise clearly defined and limited, term " connection ", " fixation " etc. should do broad sense reason
Solution, for example, " fixation " can be fixedly connected or be detachably connected, or integrally；Can mechanically connect, also may be used
Be electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be the connection of two element internals
Or the interaction relationship of two elements, limited unless otherwise clear and definite.For the ordinary skill in the art, can be with
Concrete meaning of the above-mentioned term in the utility model is understood as the case may be.
In addition, the technical scheme between each embodiment of the utility model can be combined with each other, but must be with ability
Domain those of ordinary skill can be implemented as basis, will be understood that when the combination appearance of technical scheme is conflicting or can not realize
The combination of this technical scheme is not present, also not within the protection domain of the requires of the utility model.
As shown in figure 1, a kind of ultralow temperature Multi-point metal shielding thermo-electric, including shell 1 made of stainless steel material, it is arranged at institute
State more thermocouple wires 2 in shell 1, it is multiple be used to fixing two thermocouple wires 2 formed the inner casing 3 of a temperature measuring point with
And for filling the filler 4 in space between the shell 1, the inner casing 3 and the thermocouple wire 2；The end seal of shell 1 one
Close, the other end is not closed；The every thermocouple wire 2 includes electrode line 21 made of NiCr10 alloy wires and using AuFe7
Negative line 22 made of alloy wire；The one end of inner casing 3 closing, the other end are not closed；The one of every two thermocouple wires 2
End is inserted in the inner casing 3 and is welded together to form soldering tip, and the other end is exposed to outside the 3 unclosed termination of inner casing；Phase
Spacing between adjacent two temperature measuring points is 100-500mm；The filler 4 is the fine and close MgO powder of high-purity；The thermocouple
The quantity of line 2 is twice of temperature measuring point quantity.
As the preferred scheme of the present embodiment, thermocouple wire 2 is 12 in the present embodiment, 12 thermocouple wires 2 formed from
6 temperature measuring points that left-to-right equidistantly arranges successively, the spacing between two neighboring temperature measuring point is 300mm.
Preferably, the every thermocouple wire 2 is also coated on the electrode line 21 and the outside of negative line 22
Clad 23 and the screen layer 24 for being arranged at the outside of clad 23；The electrode line 21 and the negative line 22 are simultaneously arranged
Put；After the electrode line 21 is respectively coated by one layer of clad 23 with the negative line 22, by the electrode line 21 and the negative pole
Line 22 simultaneously coats one layer of clad 23 again together, and thermocouple wire is made；The screen layer 24 is made of silver-coated copper wire, copper cash
String diameter is Φ 0.1mm- Φ 0.3mm, silver plating thicknesses 0.003mm-0.005mm.
Preferably, the material selection polytetrafluoroethylene (PTFE) of the clad 23.
Preferably, for the ease of distinguishing both positive and negative polarity during installation, the electrode line 21 and the cladding in the outside of negative line 22
Layer color is different.
As the preferred scheme of the present embodiment, the color of the outside of electrode line 21 described in the present embodiment clad is red；
The color of the clad in the outside of negative line 22 is black.
Preferably, the negative line 22 is made with being used for for the NiCr10 alloy wires of the electrode line 21 to be made
The diameter range of AuFe7 alloys is Φ 0.1mm- Φ 0.5mm；The electrode line 21 is identical with the diameter of the negative line 22.
More than, the only preferable embodiment of the utility model, but the protection domain of utility model is not limited to
This, any one skilled in the art is in the technical scope that the utility model discloses, the change that can readily occur in
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with right
The protection domain of claim is defined.
Claims (6)
- A kind of 1. ultralow temperature Multi-point metal shielding thermo-electric, it is characterised in that including shell made of stainless steel material, be arranged at it is described More thermocouple wires in shell, multiple it are used to fixing two thermocouple wires and form the inner casing of temperature measuring point and be used for Fill the filler in space between the shell, the inner casing and the thermocouple wire；Shell one end closing, the other end is not Closing；The every thermocouple wire includes electrode line made of NiCr10 alloy wires and using made of AuFe7 alloy wire Negative line；Inner casing one end closing, the other end are not closed；One end of every two thermocouple wires is inserted in the inner casing And soldering tip is welded together to form, the other end is exposed to outside the unclosed termination of the inner casing；Between between two neighboring temperature measuring point Away from for 100-500mm；The filler is the fine and close MgO powder of high-purity；The quantity of the thermocouple wire is temperature measuring point quantity Twice.
- 2. ultralow temperature Multi-point metal shielding thermo-electric according to claim 1, it is characterised in that the every thermocouple wire also wraps Include and be coated on the electrode line and the clad on the outside of the negative line and the screen layer being arranged on the outside of the clad；It is described Electrode line is arranged side by side with the negative line；After the electrode line is respectively coated by one layer of clad with the negative line, by described in Electrode line and the negative line and together with coat one layer of clad again, thermocouple wire is made；The screen layer uses silver-plated copper Line is made, and copper cash string diameter is Φ 0.1mm- Φ 0.3mm, silver plating thicknesses 0.003mm-0.005mm.
- 3. ultralow temperature Multi-point metal shielding thermo-electric according to claim 2, it is characterised in that the material selection of the clad Polytetrafluoroethylene (PTFE).
- 4. ultralow temperature Multi-point metal shielding thermo-electric according to claim 1 or 2, it is characterised in that the electrode line with it is described Clad color on the outside of negative line is different.
- 5. ultralow temperature Multi-point metal shielding thermo-electric according to claim 4, it is characterised in that clad on the outside of the electrode line Color for red；The color of clad on the outside of the negative line is black.
- 6. ultralow temperature Multi-point metal shielding thermo-electric according to claim 1, it is characterised in that for the electrode line to be made The diameter range of NiCr10 alloy wires and the AuFe7 alloys for the negative line to be made is Φ 0.1mm- Φ 0.5mm；Institute It is identical with the diameter of the negative line to state electrode line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721054339.5U CN207081497U (en) | 2017-08-22 | 2017-08-22 | A kind of ultralow temperature Multi-point metal shielding thermo-electric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721054339.5U CN207081497U (en) | 2017-08-22 | 2017-08-22 | A kind of ultralow temperature Multi-point metal shielding thermo-electric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207081497U true CN207081497U (en) | 2018-03-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721054339.5U Expired - Fee Related CN207081497U (en) | 2017-08-22 | 2017-08-22 | A kind of ultralow temperature Multi-point metal shielding thermo-electric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207081497U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443580A (en) * | 2018-12-19 | 2019-03-08 | 宁波富德能源有限公司 | A kind of multi-measuring point temperature sensor |
| CN112461394A (en) * | 2020-12-04 | 2021-03-09 | 中国科学院力学研究所 | High-spatial-resolution integrated construction method for thermocouple transient heat flow sensor |
| CN116782736A (en) * | 2023-08-18 | 2023-09-19 | 江苏安胜达航天科技股份有限公司 | Thermoelectric couple capable of adjusting thermoelectric potential and manufacturing method thereof |
-
2017
- 2017-08-22 CN CN201721054339.5U patent/CN207081497U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443580A (en) * | 2018-12-19 | 2019-03-08 | 宁波富德能源有限公司 | A kind of multi-measuring point temperature sensor |
| CN112461394A (en) * | 2020-12-04 | 2021-03-09 | 中国科学院力学研究所 | High-spatial-resolution integrated construction method for thermocouple transient heat flow sensor |
| CN116782736A (en) * | 2023-08-18 | 2023-09-19 | 江苏安胜达航天科技股份有限公司 | Thermoelectric couple capable of adjusting thermoelectric potential and manufacturing method thereof |
| CN116782736B (en) * | 2023-08-18 | 2023-11-03 | 江苏安胜达航天科技股份有限公司 | Thermoelectric couple capable of adjusting thermoelectric potential and manufacturing method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180309 Termination date: 20210822 |