CN2781631Y - Special temp sensor for stator winding of generator - Google Patents
Special temp sensor for stator winding of generator Download PDFInfo
- Publication number
- CN2781631Y CN2781631Y CN 200420055458 CN200420055458U CN2781631Y CN 2781631 Y CN2781631 Y CN 2781631Y CN 200420055458 CN200420055458 CN 200420055458 CN 200420055458 U CN200420055458 U CN 200420055458U CN 2781631 Y CN2781631 Y CN 2781631Y
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- CN
- China
- Prior art keywords
- sensing element
- lead wire
- temperature
- stator winding
- lamination
- 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
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Abstract
The utility model discloses a special temperature sensor for a stator winding of a generator, which has advantages of armor, combination of a temperature sensing element, a lamination and a lead wire, high intensity, low signal distortion rate, and simple manufacturing process of installation and wiring because the lead wire need not to be additionally connected at the time of installation and wiring. The utility model comprises the temperature sensing element, the lamination and a cable lead wire, wherein a lead wire with an insulating sheath is connected to the temperature sensing element, and the length of the leading wire is from two meters to fifty meters. A shielding layer and an outer sheath are wrapped on the outside of the lead wire. Armored laminations are wrapped on the circumambience of the temperature sensing element. The shielding layer and the outer sheath extend into a wrapping layer of the armored laminations along the lead wire. The utility model is mainly used for collecting the temperature data of the stator winding of the generator.
Description
Technical field:
The utility model relates to sensor technical field, and specifically, it is a kind of generator unit stator winding dedicated temperature sensor.
Background technology:
The kind that is used for the temperature sensor that temperature analog signal gathers in the industrial processes is numerous, as thermocouple, NTC (PTC) temperature-sensitive element, circular thermopile temperature sensor, temperature-sensitive alloy temperature transducer or the like, their structure, operation principle, data acquisition precision are had nothing in common with each other, so they also have its specific work environments and matched temperature signal collection object.At present, in the generator course of work, for accurately grasping the operating state of stator, with the definitely normal operation of unit, one of measure of being taked is exactly the temperature of online accurate observing and controlling stator winding.Generally speaking, the collection of stator winding temperature analog signal all adopts platinum (Pt) resistance or copper (Cu) RTD to finish.Platinum resistance or copper resistance temperature sensor are drawn lead by platinum or copper temperature-sensing element, lamination and one section substantially and are constituted in using at present.The maximum not enough of this temperature sensor is exactly: it is short and do not have the armouring restrictive coating to draw lead, like this, just must be in addition when wiring is installed adjunction lead again, owing to the requirement of wiring technology, contact must carry out soldering again, postwelding remakes insulation processing.Not only mounting process is loaded down with trivial details, takes a lot of work, time-consuming, and forms hidden danger of quality such as rosin joint, loose contact easily.In addition, because the lead of drawing of this transducer does not have the armouring restrictive coating, so, even remake corresponding protective treatment after the wiring, also be difficult to guarantee the bonding strength and the signal transmitting accuracy of lead and temperature-sensing element and lamination, thereby cause the generation of phenomenons such as broken string, broken line and distorted signals.
Summary of the invention:
The utility model is the technological improvement to above-mentioned existing temperature sensor, and its purpose just provides that a kind of installation wiring technology is simple, reliability and intensity height, and the relatively low generator unit stator winding dedicated temperature sensor of failure rate.
The purpose of this utility model is achieved in that generator unit stator winding dedicated temperature sensor comprises temperature-sensing element, lamination and cable tail, it is characterized in that: the lead-in wire (3) that has insulating sleeve (6) is connected on the temperature-sensing element (2), its length is two meters to 50 meters, the coated outside screen (4) and the oversheath (5) of lead-in wire (3), temperature-sensing element (2) wraps up armouring lamination (1) all around, and screen (4) and oversheath (5) extend in armouring lamination (1) integument along lead-in wire (3).
The utility model has the advantages that: adopt full sheathed structure form, realized that temperature-sensing element, lamination and lead-in wire three are one, when intensity was greatly improved, signal distortion rate obviously reduced; Lead-in wire generally can design in 50 meters, can cut off according to actual needs when wiring is installed and get final product, no longer need to connect in addition lead-in wire, not only simplified installation wiring technology, also can fundamentally avoid prior art must the formed wiring quality hidden danger of on-the-spot welding lead when installing etc. the generation of problem.
Description of drawings:
Fig. 1 is an overall structure schematic diagram of the present utility model.
Fig. 2 is right figure of the present utility model.
Fig. 3 is the structural representation of two temperature-sensing elements of the utility model
Embodiment:
Embodiment 1:
Same as the prior art, temperature-sensing element 2 of the present utility model can adopt single or two films or wound form platinum (copper) temperature-sensing element; Lead-in wire 3 can adopt three-wire system, also can adopt four restrictions, decide according to the actual needs of signals collecting; The class of insulation of lamination 1 should meet the H level, and length generally can satisfy requirements of one's work at 50 to 2,000 millimeters with interior, should guarantee that it has preferably antidetonation, shock resistance and electrician's performance such as high pressure resistant, and can use in that environment below 200 ℃ is medium-term and long-term; Lead-in wire 3 should be made into a plurality of different length scale between two meters to 50 meters, like this, the selection that can supply different length to need can be avoided the waste of material again; Tensile strength behind lead-in wire 3 parcel screens 4 and the oversheath 5 should be not less than 20 kilograms, and can guarantee in the medium-term and long-term use of environment below 200 ℃.
When originally being to use novel installation wiring, can lead-in wire be cut off direct wiring get final product according to the needs of physical length.
Claims (2)
1, generator unit stator winding dedicated temperature sensor, it comprises temperature-sensing element, lamination and cable tail, it is characterized in that: the lead-in wire (3) that has insulating sleeve (6) is connected on the temperature-sensing element (2), its length is two meters to 50 meters, the coated outside screen (4) and the oversheath (5) of lead-in wire (3), temperature-sensing element (2) wraps up armouring lamination (1) all around.
2, a kind of generator unit stator winding dedicated temperature sensor according to claim 1 is characterized in that: screen (4) and oversheath (5) extend in armouring lamination (1) integument along lead-in wire (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055458 CN2781631Y (en) | 2004-12-07 | 2004-12-07 | Special temp sensor for stator winding of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055458 CN2781631Y (en) | 2004-12-07 | 2004-12-07 | Special temp sensor for stator winding of generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2781631Y true CN2781631Y (en) | 2006-05-17 |
Family
ID=36762829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420055458 Expired - Fee Related CN2781631Y (en) | 2004-12-07 | 2004-12-07 | Special temp sensor for stator winding of generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2781631Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322973A (en) * | 2011-07-27 | 2012-01-18 | 刘广友 | method for monitoring distribution transformer temperature on line |
| CN101101320B (en) * | 2006-06-22 | 2012-07-04 | 通用电气公司 | Multifunction sensor system for electrical machines |
| WO2012122852A1 (en) * | 2011-03-17 | 2012-09-20 | 北京经纬恒润科技有限公司 | Electric motor winding temperature detection method and device as well as electric motor thermal protection method and device |
| CN104977091A (en) * | 2014-04-08 | 2015-10-14 | 舍弗勒技术股份两合公司 | Temperature sensor assembly for motor, motor, electric vehicle and installation method |
| CN105245040A (en) * | 2015-11-05 | 2016-01-13 | 中国核动力研究设计院 | Metal armored winding stator for nuclear reactor control rod driving mechanism |
-
2004
- 2004-12-07 CN CN 200420055458 patent/CN2781631Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101320B (en) * | 2006-06-22 | 2012-07-04 | 通用电气公司 | Multifunction sensor system for electrical machines |
| WO2012122852A1 (en) * | 2011-03-17 | 2012-09-20 | 北京经纬恒润科技有限公司 | Electric motor winding temperature detection method and device as well as electric motor thermal protection method and device |
| CN102322973A (en) * | 2011-07-27 | 2012-01-18 | 刘广友 | method for monitoring distribution transformer temperature on line |
| CN104977091A (en) * | 2014-04-08 | 2015-10-14 | 舍弗勒技术股份两合公司 | Temperature sensor assembly for motor, motor, electric vehicle and installation method |
| CN105245040A (en) * | 2015-11-05 | 2016-01-13 | 中国核动力研究设计院 | Metal armored winding stator for nuclear reactor control rod driving mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |