CN202255664U - Aviation flexible wire thermocouple - Google Patents
Aviation flexible wire thermocouple Download PDFInfo
- Publication number
- CN202255664U CN202255664U CN2011203588962U CN201120358896U CN202255664U CN 202255664 U CN202255664 U CN 202255664U CN 2011203588962 U CN2011203588962 U CN 2011203588962U CN 201120358896 U CN201120358896 U CN 201120358896U CN 202255664 U CN202255664 U CN 202255664U
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- CN
- China
- Prior art keywords
- thermo wires
- thermocouple
- wire
- aviation
- negative electricity
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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.)
- Expired - Lifetime
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Abstract
The utility model discloses an aviation flexible wire thermocouple comprising a positive electrode thermocouple wire and a negative electrode thermocouple wire, insulating layers are set on the outer edges of the positive electrode thermocouple wire and the negative electrode thermocouple wire, protective layers are set outside the insulating layers, wherein the hot ends of the positive electrode thermocouple wire and the negative electrode thermocouple wire are welded to a connection point, and the cold ends of the positive electrode thermocouple wire and the negative electrode thermocouple wire are provided with a wiring fork respectively. The aviation flexible wire thermocouple has the following remarkable effects: the aviation flexible wire thermocouple is simple in structure, soft in texture, large in flexibility, not limited in using length, and firm in connections of wiring forks set on the cold ends; the aviation flexible wire thermocouple avoids using compensating lead wire, increases detection precision of thermocouple, and can satisfy with application requirements of aviation.
Description
Technical field
The utility model relates to the thermopair that a kind of thermometric is used, and specifically, is the aviation flexible cord thermopair that is used for aviation field.
Background technology
The thermopair that is used for thermometric at present often is divided into two types, and the first kind is called " assembling thermopair ", and the outside is provided with insulating sleeve, can not be crooked, and environment for use is usually limited.Another kind of being called " armoured thermocouple ",, the insulator of outside is to be formed by the megohmite insulant armouring, can be crooked; Use length also can increase and decrease; But flexibility is limited, and the initial precision of galvanic couple is not accurate enough, and often adopts compensating wire to connect the galvanic couple silk; The accuracy of detection of thermopair is not high, can not be satisfied with the application of aviation field.
The utility model content
The purpose of the utility model provides the high thermopair of a kind of accuracy of detection, can be used in the temperature detection of aviation field.
For achieving the above object, the technical scheme that the utility model adopted is:
A kind of aviation flexible cord thermopair; Comprise positive electrical thermo wires and negative electricity thermo wires; The outer rim of said positive electrical thermo wires and negative electricity thermo wires is provided with insulation course; Said insulation course is outside equipped with protective seam, and its key is: the hot junction of said positive electrical thermo wires and negative electricity thermo wires is welded on the contact, and the cold junction of said positive electrical thermo wires and negative electricity thermo wires is respectively arranged with the wiring fork.
The hot junction of two galvanic couple silks is directly welded together, and cold junction links to each other with testing circuit through special wiring fork is set, and avoids the use of compensating wire, has increased the accuracy of detection of thermopair, makes it reach the accuracy requirement in aerospace applications field.
Connect for the ease of circuit, said wiring fork is crescent.
The diameter of said positive electrical thermo wires and negative electricity thermo wires is 0.5mm, and the thickness of said insulation course is 0.25mm, and the thickness of said protective seam is 0.005mm.
Said insulation course and protective seam are teflon, spun glass or ceramic fiber.
Said wiring fork is processed by brass.
The temperature-measuring range of said positive electrical thermo wires and negative electricity thermo wires is 0～1000 ℃.
The remarkable result of the utility model is: simple in structure, quality is soft, and profile is elongated; Flexibility is big, uses length unrestricted, and the wiring fork of cold junction setting is connected firmly; Avoid the use of compensating wire, increased the accuracy of detection of thermopair, can satisfy the aerospace applications demand.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the body sectional view of thermopair.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described.
As depicted in figs. 1 and 2; A kind of aviation flexible cord thermopair; Comprise positive electrical thermo wires 1 and negative electricity thermo wires 2, the outer rim of said positive electrical thermo wires 1 and negative electricity thermo wires 2 is provided with insulation course 5, and said insulation course 5 is outside equipped with protective seam 6; The hot junction of said positive electrical thermo wires 1 and negative electricity thermo wires 2 is welded on the contact 3, and the cold junction of said positive electrical thermo wires 1 and negative electricity thermo wires 2 is respectively arranged with wiring fork 4.
Positive electrical thermo wires 1 adopts the nickel chromium triangle material to process, and negative electricity thermo wires 2 adopts the nisiloy materials to process, and the hot junction of two galvanic couple silks is directly welded together; Cold junction links to each other with outer detecting circuit through special wiring fork 4 is set; Avoid the use of compensating wire, not only can reduce equipment cost, and increased the accuracy of detection of thermopair; Its precision up to ± 1.1 ℃ or ± 0.4%t (t is an actual temperature), satisfy the accuracy requirement in aerospace applications field.
Connect for the ease of circuit, said wiring fork 4 is a crescent, and in order to reach good heat-conducting effect, this wiring fork 4 selects for use brass material to process.
The diameter of said positive electrical thermo wires 1 and negative electricity thermo wires 2 is 0.5mm, and the thickness of said insulation course 5 is 0.25mm, and the thickness of said protective seam 6 is 0.005mm.The profile of thermopair is elongated, and flexibility is big, is convenient to the application of some special occasions, and concrete size also can be done suitable adjustment according to application scenarios.
In order to keep good insulation performance property and pliability, said insulation course 5 is teflon, spun glass or ceramic fiber with protective seam 6.Temperature-measuring range according to different is selected material different for use, when temperature-measuring range is 0～250 ℃, selects teflon for use; When temperature-measuring range is 0～600 ℃, select spun glass for use; When temperature-measuring range is 0～1000 ℃, select ceramic fiber for use, the temperature-measuring range maximum of therefore said positive electrical thermo wires 1 and negative electricity thermo wires 2 can reach 0～1000 ℃.
The above is merely the optimum embodiment of the utility model, is not restriction with this to the utility model, and is all in the spirit of the utility model with any modification of being done in principle, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (6)
1. aviation flexible cord thermopair; Comprise positive electrical thermo wires (1) and negative electricity thermo wires (2); The outer rim of said positive electrical thermo wires (1) and negative electricity thermo wires (2) is provided with insulation course (5); Said insulation course (5) is outside equipped with protective seam (6), it is characterized in that: the hot junction of said positive electrical thermo wires (1) and negative electricity thermo wires (2) is welded on the contact (3), and the cold junction of said positive electrical thermo wires (1) and negative electricity thermo wires (2) is respectively arranged with wiring fork (4).
2. aviation flexible cord thermopair according to claim 1 is characterized in that: said wiring fork (4) is a crescent.
3. aviation flexible cord thermopair according to claim 1; It is characterized in that: the diameter of said positive electrical thermo wires (1) and negative electricity thermo wires (2) is 0.5mm; The thickness of said insulation course (5) is 0.25mm, and the thickness of said protective seam (6) is 0.005mm.
4. aviation flexible cord thermopair according to claim 1 is characterized in that: said insulation course (5) and protective seam (6) are teflon, spun glass or ceramic fiber.
5. aviation flexible cord thermopair according to claim 1 is characterized in that: said wiring fork (4) is processed by brass.
6. aviation flexible cord thermopair according to claim 1 is characterized in that: the temperature-measuring range of said positive electrical thermo wires (1) and negative electricity thermo wires (2) is 0～1000 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203588962U CN202255664U (en) | 2011-09-23 | 2011-09-23 | Aviation flexible wire thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203588962U CN202255664U (en) | 2011-09-23 | 2011-09-23 | Aviation flexible wire thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202255664U true CN202255664U (en) | 2012-05-30 |
Family
ID=46116889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203588962U Expired - Lifetime CN202255664U (en) | 2011-09-23 | 2011-09-23 | Aviation flexible wire thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202255664U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604519A (en) * | 2013-10-28 | 2014-02-26 | 安徽蓝德集团股份有限公司 | Glass-packaged thermocouple with compensation-wire-type structure |
| CN107065827A (en) * | 2017-03-24 | 2017-08-18 | 国网福建省电力有限公司 | Digital three-phase temperature controller p-wire |
-
2011
- 2011-09-23 CN CN2011203588962U patent/CN202255664U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604519A (en) * | 2013-10-28 | 2014-02-26 | 安徽蓝德集团股份有限公司 | Glass-packaged thermocouple with compensation-wire-type structure |
| CN103604519B (en) * | 2013-10-28 | 2016-05-11 | 安徽蓝德集团股份有限公司 | A kind of compensating wire formula structural glass encapsulation thermocouple |
| CN107065827A (en) * | 2017-03-24 | 2017-08-18 | 国网福建省电力有限公司 | Digital three-phase temperature controller p-wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |