CN201402188Y - Durable and rapid thermocouple - Google Patents
Durable and rapid thermocouple Download PDFInfo
- Publication number
- CN201402188Y CN201402188Y CN2009200853314U CN200920085331U CN201402188Y CN 201402188 Y CN201402188 Y CN 201402188Y CN 2009200853314 U CN2009200853314 U CN 2009200853314U CN 200920085331 U CN200920085331 U CN 200920085331U CN 201402188 Y CN201402188 Y CN 201402188Y
- Authority
- CN
- China
- Prior art keywords
- groove
- thermo wires
- durable
- shell
- thermo
- 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
Links
- 239000012212 insulator Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract 3
- 238000005452 bending Methods 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Abstract
The utility model discloses a durable and rapid thermocouple, which belongs to the technical field of thermometric devices. The durable and rapid thermocouple is characterized in that two thermo wiresare arranged in a shell, the front ends of the two thermo wires are integrated through welding, the space between the two thermo wires as well as between the thermo wires and the shell is filled withinsulators, a groove (6) is formed at the front end of the shell (1), the welding joint of the thermo wires (3, 4) is fixed in the groove (6), the cross sectional area of the groove (6) ranges from 1/2 to 2/3 of that of the shell (1), and the cross section of the groove (6) is semi-circular or fan-shaped. The utility model has the advantages of reasonable design and simple structure; the thermo wires and the welding joint are protected by the groove to have low possibility of being bent to be useless; and an opening of the groove enables the thermometric joint to be exposed outside, thereby achieving rapid response and measurement.
Description
Technical field
The utility model belongs to the temperature measuring device technical field, is specifically related to a kind of very small and temperature variation of measurement volumes thermopair of object temperature faster that is used for.
Background technology
In the very small and temperature variation of measurement volumes faster during the temperature of object (such as the cigarette of burning), the sensor bulk size that requires thermometric to use is as far as possible little in the prior art, and response speed as quickly as possible.And should have certain mechanical strength.At present commonly used is the very thin armoured thermocouple of diameter, and the composite wire welded joint is exposed to the outside of stainless steel casing, and it is directly contacted with testee, with the shortening heat balance time, and the increase response speed.But the thin thermo wires bad mechanical strength that exposes, easy bending fractures when close and insertion testee, so such thermopair can only use several times and just scrap when the temperature of test cigarette burning.
The utility model content
At the above-mentioned deficiency of prior art, the technical problems to be solved in the utility model provides a kind of durable fast thermocouple, and it is the fast-changing temperature of the very small cigarette of measurement volumes rapidly, has repeatedly used durability again.
The technical solution of the utility model is: two thermo wires of durable fast thermocouple are arranged in the overcoat, two thermo wires front ends are welded to connect and are one, be filled with insulator between the thermo wires and between thermo wires and the overcoat, its special feature is: the front end of overcoat is a groove, and the pad of two thermo wires is fixed among the groove.The cross-sectional area of described groove is 1/2～2/3 of an overcoat cross-sectional area.The shape of the cross-sectional area of described groove is semicircle or fan-shaped.
The utility model is reasonable in design, and structure is simple and direct, and thermo wires and pad are subjected to the groove protection, and difficult bending is scrapped, and the opening of groove exposes temperature measurement node point, directly contacts with testee, and response speed is fast.
Description of drawings
Accompanying drawing 1 is a structural principle synoptic diagram of the present utility model;
Accompanying drawing 2 is the utility model one embodiment perspective view;
Accompanying drawing acceptance of the bid keep the score state as follows: the 1-overcoat; The 2-insulator; The 3-thermo wires; The 4-thermo wires; The 5-pad; The 6-groove.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.Shown in the principle of accompanying drawing 1, the utility model improves the tip of armored thermopair.This thermopair adopts resistant to elevated temperatures overcoat 1, magnesium oxide insulation course 2, and thermo wires 3 and 4 is formed, and at pad 5 places of thermo wires, compares with prior art armored thermopair, can be regarded as overcoat 1 and is cut out a part, and temperature measurement node point is fixed in the groove 6 of overcoat.When thermopair inserted and extract testee out, thermo wires 3,4 was subjected to the protection of the groove 6 of overcoat 1, avoids the testee mechanical effect, therefore was difficult for bending and scrapped.And temperature measurement node point 5 still keeps exposing, and can directly contact with testee, does not influence its response speed.As shown in Figure 2; the cross-sectional area of groove 6 is about 1/2 of overcoat 1 cross-sectional area; compare with prior art armored thermopair; can be regarded as overcoat 1 tip and cut out half, the cross-sectional area of groove 6 can also be than bigger in the diagram, and its shape can be semicircle or fan-shaped; as long as overcoat 1 tip has been cut out a part; make it can protect point for measuring temperature, point for measuring temperature is contacted with testee, can reach improvement purpose of the present utility model.Can see shown in the accompanying drawing 3 between the thermo wires 3,4, and be filled with insulation course 2 between thermo wires 3,4 and the overcoat 1, what the insulation course 2 was here used always is magnesium oxide, also can be other megohmite insulant.
Claims (3)
1, a kind of durable fast thermocouple, two thermo wires are arranged in the overcoat, two thermo wires front ends are welded to connect and are one, be filled with insulator between the thermo wires and between thermo wires and the overcoat, it is characterized in that: the front end of overcoat (1) is groove (6), and the pad (5) of thermo wires (3,4) is fixed among the groove (6).
2, durable fast thermocouple according to claim 1 is characterized in that: the cross-sectional area of described groove (6) is 1/2～2/3 of overcoat (a 1) cross-sectional area.
3, durable fast thermocouple according to claim 1 is characterized in that: the shape of the cross-sectional area of described groove (6) is semicircle or fan-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200853314U CN201402188Y (en) | 2009-04-24 | 2009-04-24 | Durable and rapid thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200853314U CN201402188Y (en) | 2009-04-24 | 2009-04-24 | Durable and rapid thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201402188Y true CN201402188Y (en) | 2010-02-10 |
Family
ID=41661984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200853314U Expired - Fee Related CN201402188Y (en) | 2009-04-24 | 2009-04-24 | Durable and rapid thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201402188Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539000A (en) * | 2012-01-04 | 2012-07-04 | 无锡卡利克斯科技有限公司 | Thermodetector bracket |
| CN103616085A (en) * | 2013-11-26 | 2014-03-05 | 沈阳黎明航空发动机(集团)有限责任公司 | Wire-exposed type small-inertia thermocouple |
| CN104535211A (en) * | 2014-12-19 | 2015-04-22 | 西安近代化学研究所 | Thermocouple protecting device suitable for fireball response temperature testing in blast field |
-
2009
- 2009-04-24 CN CN2009200853314U patent/CN201402188Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539000A (en) * | 2012-01-04 | 2012-07-04 | 无锡卡利克斯科技有限公司 | Thermodetector bracket |
| CN103616085A (en) * | 2013-11-26 | 2014-03-05 | 沈阳黎明航空发动机(集团)有限责任公司 | Wire-exposed type small-inertia thermocouple |
| CN103616085B (en) * | 2013-11-26 | 2017-05-31 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of naked wire form fast thermocouple |
| CN104535211A (en) * | 2014-12-19 | 2015-04-22 | 西安近代化学研究所 | Thermocouple protecting device suitable for fireball response temperature testing in blast field |
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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: 20100210 Termination date: 20160424 |