CN106482854A - A kind of filament electric thermo-couple protector - Google Patents
A kind of filament electric thermo-couple protector Download PDFInfo
- Publication number
- CN106482854A CN106482854A CN201611013892.4A CN201611013892A CN106482854A CN 106482854 A CN106482854 A CN 106482854A CN 201611013892 A CN201611013892 A CN 201611013892A CN 106482854 A CN106482854 A CN 106482854A
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- China
- Prior art keywords
- metal coating
- filament
- plain conductor
- thermo
- metal
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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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The present invention relates to a kind of filament electric thermo-couple protector, including filament thermocouple, filament thermocouple is welded with plain conductor constantan by two different plain conductor copper, and plain conductor copper is supported and overlapped by a thicker metal thermo wires with plain conductor constantan.The thicker metal thermo wires outer cover has anti-skidding isolating shrinkable tube; metal coating shell is cased with outside the anti-skidding isolating shrinkable tube; the metal coating valve jacket has metal coating lid, and the metal coating shell top has annular projection part, and the annular projection section lower card has ring-type buckle.The present invention is covered metal coating lid so that filament thermocouple measurement end is obtained sufficiently effective protection, extends the service life of filament thermocouple, protects filament thermocouple measurement end not to be damaged by designing a kind of filament electric thermo-couple protector when idle;Metal coating lid is extracted during use, directly carries out operational measure.Device is compact succinct, easy to operate.
Description
Technical field
The present invention relates to instrument field, more particularly to a kind of filament electric thermo-couple protector.
Background technology
In industrial processes, temperature is to need one of important parameter of measurement and control.In temperature survey, thermoelectricity
Even application is extremely wide, it has, and simple structure, easily manufactured, measurement range be wide, the little and output signal of high precision, inertia just
Many advantages, such as teletransmission.In the express occasion of temperature change, the requirement to thermocouple is that thermal capacity is little, to testee or
The temperature field interference of fluid is little, so generally adopt response time express thermocouple, i.e., exposed filament thermocouple, and
Wish that the geometric scale for measuring contact is as little as possible.Yet with filament thermocouple thermo wires diameter in 0.05mm 0.1mm, and weld
The diameter of contact is then more small, is extremely easily broken off, and this fine thermo wires be generally difficult obtain, expensive, if lose or
Damage is difficult to give for change and repairs, and is inconvenient.
It is not a lot of at this stage for the resist technology of filament thermocouple, what existing technology had is processed into armour by filament thermocouple
Dress filament thermocouple, greatly reduces the accuracy of measurement;Also the metal protector having is set to two cylinders, the first cylinder
It is connected with nut by thread head with the second cylinder, it is very convenient to remove and install not.
Content of the invention
The invention aims to overcoming the deficiencies in the prior art, there is provided a kind of filament electric thermo-couple protector.
The present invention is to be achieved through the following technical solutions:
The present invention and a kind of filament electric thermo-couple protector, including filament thermocouple, filament thermocouple is different by two
Plain conductor copper is welded with plain conductor constantan, and plain conductor copper is with plain conductor constantan by a thicker metal thermo wires
Support and overlap.The thicker metal thermo wires outer cover has anti-skidding isolating shrinkable tube, the anti-skidding isolating shrinkable tube outer cover
There is metal coating shell, the metal coating valve jacket has metal coating lid, the metal coating shell top has annular projection part,
The annular projection section lower card has ring-type buckle.
Used as the preferred technical solution of the present invention, the plain conductor copper is needed in microscope with plain conductor constantan
Lower welding.
Used as the preferred technical solution of the present invention, the thicker metal thermo wires diameter is not less than 0.3mm, with certain strong
Degree.
As the preferred technical solution of the present invention, insulating materials is scribbled outside the thicker metal thermo wires, prevent metal
Wire copper and the short circuit of plain conductor constantan.
Used as the preferred technical solution of the present invention, the anti-skidding isolating shrinkable tube is close to the inwall of metal coating shell, and
It is not fall off.
As the preferred technical solution of the present invention, the annular projection part of the metal coating shell and the ring of metal coating lid
Shape buckle can just be blocked, and be not fall off.
Used as the preferred technical solution of the present invention, the metal coating lid has elasticity with ring-type buckle.
Compared with prior art, the invention has the beneficial effects as follows:The present invention is by designing a kind of filament thermocouple protection
Device, covers metal coating lid when idle so that filament thermocouple measurement end is obtained sufficiently effective protection, extends filament
The service life of thermocouple, protects filament thermocouple measurement end not to be damaged;Metal coating lid is extracted during use, is directly grasped
Measure.Device is compact succinct, easy to operate.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
In Fig. 1:1. plain conductor copper;2. plain conductor constantan;3. thicker metal thermo wires;4. anti-skidding isolating shrinkable tube;
5. metal coating shell;6. metal coating lid;7. annular projection part;8. ring-type buckle.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
Refer to the structural representation of Fig. 1, Fig. 1 for the present invention.
A kind of filament electric thermo-couple protector, including filament thermocouple, filament thermocouple is by two different plain conductors
Copper 1 is welded with plain conductor constantan 2, and plain conductor copper 1 is with plain conductor constantan 2 by a thicker metal thermo wires 3
Support and overlap.Anti-skidding isolating shrinkable tube 4,4 outer cover of anti-skidding isolating shrinkable tube is cased with outside the thicker metal thermo wires 3
There is metal coating shell 5, the metal coating shell 5 is cased with metal coating lid 6,5 top of metal coating shell has annular projection
There is ring-type buckle 8 part 7,7 bottom card of the annular projection part.
Plain conductor copper 1, the plain conductor constantan 2 of 100 μm of two suitable length diameters is intercepted, by plain conductor copper 1, gold
Category wire constantan 2 is overlapped with the thicker metal thermo wires 3 for coating insulating materials and is close to thicker 3 side of metal thermo wires
On wall wall, plain conductor copper 1, plain conductor constantan 2 keep certain distance so which is not contacted.
The thicker metal thermo wires 3 for having overlapped is put anti-skidding isolating shrinkable tube 4 and packs tightly, metal coating shell 5 is inserted in, is made
Anti-skidding isolating shrinkable tube 4 is close to metal coating shell 5, and respectively reserves sufficient length in 5 upper and lower ends of metal coating shell, conveniently connects
The filament thermocouple welding operation that gets off.
Electrolytic etching is carried out to plain conductor copper 1,2 tip of plain conductor constantan under the microscope, and forms diameter being less than
50 μm and the fine tip that has sufficient length, welded using electric spark after two nib contacts, form thermoelectricity and couple
Point.So far, filament thermocouple completes.
When filament thermocouple is idle, metal coating lid 6 is buckled well with metal coating shell 5, the ring-type of metal coating shell 5 is convex
The ring-type buckle 8 for part 7 being played with metal coating lid 6 can just be blocked so that filament thermocouple is obtained fully when idle
It is effectively protected, the service life of thermocouple wire is extended, protects filament thermocouple measurement end not to be damaged.
When filament thermocouple needs to use, directly metal coating lid 6 is extracted from metal coating shell 5 and begins to use,
Easy to operate succinct.
Presently preferred embodiments of the present invention is the foregoing is only, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement that is made within god and principle etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of filament electric thermo-couple protector, including filament thermocouple, filament thermocouple is by two different plain conductor copper
(1) it is welded with plain conductor constantan (2), plain conductor copper (1) is with plain conductor constantan (2) by a thicker metal pair
Silk (3) is supported and is overlapped.It is characterized in that:Anti-skidding isolating shrinkable tube (4), institute are cased with outside the thicker metal thermo wires (3)
State outside anti-skidding isolating shrinkable tube (4) and metal coating shell (5) be cased with, metal coating shell (5) are cased with metal coating lid (6),
Metal coating shell (5) top has annular projection part (7), and annular projection part (7) bottom card has ring-type buckle
(8).
2. a kind of filament electric thermo-couple protector according to claim 1, it is characterised in that:Plain conductor copper (1)
Need to weld under the microscope with plain conductor constantan (2).
3. a kind of filament electric thermo-couple protector according to claim 1, it is characterised in that:The thicker metal thermo wires
(3) diameter is not less than 0.3mm, with some strength.
4. a kind of filament electric thermo-couple protector according to claim 1, it is characterised in that:The thicker metal thermo wires
(3) outside scribbles insulating materials, prevents plain conductor copper (1) with plain conductor constantan (2) short circuit.
5. a kind of filament electric thermo-couple protector according to claim 1, it is characterised in that:The anti-skidding isolating shrinkable tube
(4) it is close to the inwall of metal coating shell (5), and is not fall off.
6. a kind of filament electric thermo-couple protector according to claim 1, it is characterised in that:Metal coating shell (5)
The ring-type buckle (8) of annular projection part (6) and metal coating lid (7) can just block, be not fall off.
7. a kind of filament electric thermo-couple protector according to claim 1, it is characterised in that:Metal coating lid (7)
There is elasticity with ring-type buckle (8).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201611013892.4A CN106482854B (en) | 2016-11-18 | 2016-11-18 | A kind of filament electric thermo-couple protector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611013892.4A CN106482854B (en) | 2016-11-18 | 2016-11-18 | A kind of filament electric thermo-couple protector |
Publications (2)
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CN106482854A true CN106482854A (en) | 2017-03-08 |
CN106482854B CN106482854B (en) | 2019-09-17 |
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CN201611013892.4A Expired - Fee Related CN106482854B (en) | 2016-11-18 | 2016-11-18 | A kind of filament electric thermo-couple protector |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112525366A (en) * | 2020-11-27 | 2021-03-19 | 中国航发四川燃气涡轮研究院 | Air suction type pluggable thermocouple probe for engine air inlet total temperature dynamic distortion test |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112525366A (en) * | 2020-11-27 | 2021-03-19 | 中国航发四川燃气涡轮研究院 | Air suction type pluggable thermocouple probe for engine air inlet total temperature dynamic distortion test |
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CN106482854B (en) | 2019-09-17 |
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