CN201936807U - Insulating draw rod and circuit breaker - Google Patents
Insulating draw rod and circuit breaker Download PDFInfo
- Publication number
- CN201936807U CN201936807U CN2010206909142U CN201020690914U CN201936807U CN 201936807 U CN201936807 U CN 201936807U CN 2010206909142 U CN2010206909142 U CN 2010206909142U CN 201020690914 U CN201020690914 U CN 201020690914U CN 201936807 U CN201936807 U CN 201936807U
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- China
- Prior art keywords
- circuit breaker
- tension pole
- insulated tension
- insulator
- force sensor
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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 - Fee Related
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- 239000012212 insulator Substances 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims description 17
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
An embodiment of the utility model discloses an insulating draw rod, which comprises a threaded inserter, an elastic medium, an outer casing, an insulator, a cover plate and a force sensor. The force sensor is arranged at the bottom of the insulator and comprises a force sensor body connected to the bottom of the insulator, a signal output wire and a connecting rod which is connected to an operation mechanism of a circuit breaker. Force transmission can be realized by the connecting rod in the force sensor since the force sensor is arranged at the bottom of the insulator. The pressure on the insulating draw rod can be detected by the force sensor, and contacting route of the circuit breaker can be conveniently and directly confirmed based on the pressure without the help of mechanical characteristic testers or manual measurement. The force sensor is capable of continuously measuring, so that the contacting route of the circuit breaker can be confirmed at any time, and online monitoring on the contacting route of the circuit breaker can be realized. The utility model further discloses a circuit breaker.
Description
Technical field
The utility model relates to the electric device technical field, relates in particular to a kind of insulated tension pole and circuit breaker.
Background technology
Vacuum circuit-breaker is a kind of novel electrical equipment that fast development is in recent ten years got up.Compare with traditional oil circuit breaker, but vacuum circuit-breaker have do not fire, do not pollute, long frequent operation of inspection-free phase, series of advantages such as less contact gap, volume is little, in light weight, electric arc does not expose, the life-span is long, it just progressively replaces traditional oil-minimum breaker and becomes the main switchgear of intermediate distribution system, and life-span length is the distinguishing feature of vacuum circuit-breaker.
The mechanical property of vacuum circuit-breaker, it is its very important index that can normally move, high-pressure vacuum breaker must will carry out the routine tests of dispatching from the factory such as testing mechanical characteristic before dispatching from the factory, testing mechanical characteristic mainly comprises: overtravel, the test of opening aspects such as distance, on/off switch speed, on/off switch time, closing rebound, separating brake overshoot and bounce-back.Wherein contacting travel is called overtravel again, be meant circuit breaker dynamic/static contact contact after, the distance of motion is continued in the moving contact coupling part.The main effect of contacting travel have following some: (1) provides enough contact pressures for the reliable contact of contact, and guarantees that contact after electrical wear to a certain degree, still can guarantee required contact pressure; (2) when contact closure, provide buffering, reduce closing rebound and mechanical shock; (3) when separating brake, make moving contact obtain certain initial acceleration, break the melting welding point, reduce the arcing time, improve medium dielectric strength resume speed.
The structure of traditional vacuum insulating pull rod for breaker comprises as shown in Figure 1: threaded insert 1, elastic fluid 2, shell body 3, insulator 4, connecting screw rod 5 and cover plate 6.
At existing vacuum circuit breaker constructions, when the contacting travel of vacuum circuit-breaker is detected, need or measure contacting travel manually by the testing mechanical characteristic instrument, the checkout procedure complexity, and can't realize on-line monitoring.
The utility model content
In view of this, the purpose of this utility model is to provide a kind of insulated tension pole and circuit breaker, can be easily the contacting travel of circuit breaker be detected, and can realize the on-line monitoring of circuit breaker contacting travel.
For achieving the above object, the utility model provides following technical scheme:
A kind of insulated tension pole comprises: threaded insert, elastic fluid, shell body, insulator and cover plate also comprise: the power transducer that is arranged at described insulator bottom;
Described power transducer comprises sensor main body, output line that is connected in described insulator bottom and the connecting rod that can be connected with the operating mechanism of circuit breaker.
Preferably, in above-mentioned insulated tension pole, the retaining edge that described threaded insert comprises screw rod, swivel nut and is sheathed on described swivel nut.
Preferably, in above-mentioned insulated tension pole, described elastic fluid is a spring.
Preferably, in above-mentioned insulated tension pole, described elastic fluid is the dish spring.
A kind of circuit breaker comprises aforesaid any insulated tension pole.
This shows that the beneficial effects of the utility model are: in the disclosed insulated tension pole of the utility model, in the bottom of insulator the power transducer is set, the connecting rod in the power transducer can play the effect of connecting screw rod in the existing insulated tension pole, the conduction of realizable force; The power transducer can detect the pressure that insulated tension pole is subjected to, and can directly determine to need not the contacting travel of circuit breaker by means of the testing mechanical characteristic instrument based on this pressure, also need not to measure manually the contacting travel that can determine circuit breaker easily; Because the power transducer can continually be measured, therefore the force value that can obtain according to the power sensor is at any time determined the contacting travel of circuit breaker, realizes the on-line monitoring to the circuit breaker contacting travel.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment, to do simple introduction to the accompanying drawing of required use among the embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of existing insulated tension pole;
Fig. 2 is the structural representation of the disclosed a kind of insulated tension pole of the utility model.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making under the creative work prerequisite, and the every other embodiment that is obtained belongs to the utility model protection range.
The utility model discloses a kind of insulated tension pole, by its structure is improved, but the contacting travel of easy detection circuit breaker, and can realize the on-line monitoring of circuit breaker contacting travel.
Referring to Fig. 2, Fig. 2 is the structural representation of the disclosed a kind of insulated tension pole of the utility model.
This insulating pull rod for breaker comprises: threaded insert 1, elastic fluid 2, shell body 3, insulator 4, power transducer 5 and cover plate 6.
Wherein, shell body 3 has and roughly is cylindrical inner chamber (among the figure indicate), and elastic fluid 2 is arranged in this inner chamber, and elastic fluid 2 has through hole (indicating among the figure) in the approximate centre position.
Threaded insert 1 has top 11, middle protuberance 13 and bottom 12, and insert in the through hole of elastic fluids 2 bottom of threaded insert 1 12, makes elastic fluid 2 be between the lower surface of the inner chamber of shell body 3 and middle protuberance 13.
The approximate centre position of cover plate 6 is provided with through hole (among the figure indicate), and the top 11 of threaded insert 1 can be stretched out from the through hole of cover plate 6, so that be connected with moving contact in the vacuum interrupter of circuit breaker.
In force, a kind of implementation of threaded insert 1 can for: comprise screw rod 11 and swivel nut 12, swivel nut 12 is provided with retaining along 13, the retaining along 13 swivel nut is divided into upper and lower two parts.
Process to the contacting travel of the circuit breaker of the disclosed insulated tension pole of Test Application the utility model describes below.
When breaker closing, the transmission mechanism (not shown) of the operating structure of circuit breaker applies one and impels moving contact to the cephalomotor power of stationary contact on insulated tension pole, thereby moving contact also contacts with it to the fixed contact motion under the effect of this power.After moving contact and fixed contact contacted, the elastic fluid in the insulated tension pole compressed because of stressed, and its decrement is the contacting travel of circuit breaker.
When insulated tension pole was in running order, power transducer 5 detected the pressure that insulated tension pole is subjected to, and output voltage signal.
With fully loaded 6000N is example, and the relation of proof force value and output voltage signal is as shown in table 1.
Table 1
Contact pressure and output voltage are linear, are specially:
F＝480*U1
Wherein, F is a contact pressure, and U1 is the output voltage of power transducer 5, can calculate contact pressure by above-mentioned formula.It is pointed out that in the utility model power transducer 5 can adopt digital power transducer, the output of power transducer 5 at this moment is contact pressure, need not to calculate according to above-mentioned formula again.But the cost of digital power transducer is higher, thus in the utility model, preferably use the analog force transducer, and calculate contact pressure by above-mentioned formula.
The utility model applicant finds that there is direct relation in the contacting travel of contact pressure and circuit breaker.Be specially:
When F≤F1, X=0;
When F＞F1, X=(F-F1)/K.
Wherein, F is a contact pressure; F1 is an initial pressure, and threaded insert 1 has certain initial pressure because of being subjected to elastic fluid 2 effects, and this initial pressure can be determined by the model of circuit breaker, can be provided by circuit breaker producer; K is the coefficient of elasticity of elastic fluid in the insulated tension pole.
With K=285.7, F1=2100N is that example describes.
If the output voltage U 1=7mv of power transducer 5, then X=(480*7-2100)/285.7=4.4mm.
If the output voltage U 1=6mv of power transducer 5, then X=(480*6-2100)/285.7=2.7mm.
The process of aforementioned calculation circuit breaker contacting travel can be carried out in auxiliary operation equipment, and this auxiliary operation equipment is connected with the output line 52 of power transducer 5.Power transducer 5 detection contact pressure, the output voltage or the contact pressure of the reaction contact pressure value that obtains, and transfer in the auxiliary operation equipment by output line 52, determine the contacting travel of circuit breaker based on output voltage or contact pressure by auxiliary operation equipment.
In implementation process, elastic fluid 2 can adopt spring or dish spring.
In the disclosed insulated tension pole of the utility model, in the bottom of insulator 4 power transducer 5 is set, the connecting rod 53 in the power transducer 5 can play the effect of connecting screw rod in the existing insulated tension pole, the conduction of realizable force; And power transducer 5 can detect the pressure that insulated tension pole is subjected to, can directly determine the contacting travel of circuit breaker based on this pressure, need not by means of the testing mechanical characteristic instrument, also need not to measure manually the contacting travel that can determine circuit breaker easily, because power transducer 5 can continually be measured, therefore the force value that can detect according to power transducer 5 is at any time determined the contacting travel of circuit breaker, realizes the on-line monitoring to the circuit breaker contacting travel.
The invention also discloses a kind of circuit breaker, this circuit breaker adopts above-mentioned disclosed any insulated tension pole of the utility model.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (5)
1. insulated tension pole comprises: threaded insert, elastic fluid, shell body, insulator and cover plate, it is characterized in that, and also comprise: the power transducer that is arranged at described insulator bottom;
Described power transducer comprises sensor main body, output line that is connected in described insulator bottom and the connecting rod that can be connected with the operating mechanism of circuit breaker.
2. insulated tension pole according to claim 1 is characterized in that, described threaded insert comprises screw rod, swivel nut and is sheathed on the retaining edge of described swivel nut.
3. insulated tension pole according to claim 1 is characterized in that, described elastic fluid is a spring.
4. insulated tension pole according to claim 1 is characterized in that, described elastic fluid is the dish spring.
5. a circuit breaker is characterized in that comprising each described insulated tension pole in the claim 1～4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206909142U CN201936807U (en) | 2010-12-30 | 2010-12-30 | Insulating draw rod and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206909142U CN201936807U (en) | 2010-12-30 | 2010-12-30 | Insulating draw rod and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201936807U true CN201936807U (en) | 2011-08-17 |
Family
ID=44448322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206909142U Expired - Fee Related CN201936807U (en) | 2010-12-30 | 2010-12-30 | Insulating draw rod and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201936807U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439093A (en) * | 2013-08-06 | 2013-12-11 | 江苏森源电气股份有限公司 | Mechanical performance on-line detection device |
| CN103675665A (en) * | 2013-12-13 | 2014-03-26 | 中国西电电气股份有限公司 | Device and method for judging break state of switch through pressure change of switch contact |
| CN105242202A (en) * | 2015-10-29 | 2016-01-13 | 福建中网电气有限公司 | Breaker detection apparatus |
| CN105974307A (en) * | 2016-08-01 | 2016-09-28 | 厦门理工学院 | Device and method for online monitoring comprehensive characteristics of high-voltage circuit breaker |
| CN108493041A (en) * | 2018-02-08 | 2018-09-04 | 北京双杰电气股份有限公司 | A kind of unidirectional gas damping buffering insulated tension pole |
| CN110081812A (en) * | 2019-05-30 | 2019-08-02 | 川开电气有限公司 | Dynamic/static contact depth of engagement measuring device |
| CN110286321A (en) * | 2019-07-31 | 2019-09-27 | 麦克奥迪(厦门)机电科技有限公司 | A kind of Intelligent force measuring breaker uses insulated pull rod |
| CN110567419A (en) * | 2019-07-29 | 2019-12-13 | 深圳供电局有限公司 | breaker contact engagement depth detection device |
-
2010
- 2010-12-30 CN CN2010206909142U patent/CN201936807U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439093A (en) * | 2013-08-06 | 2013-12-11 | 江苏森源电气股份有限公司 | Mechanical performance on-line detection device |
| CN103675665A (en) * | 2013-12-13 | 2014-03-26 | 中国西电电气股份有限公司 | Device and method for judging break state of switch through pressure change of switch contact |
| CN105242202A (en) * | 2015-10-29 | 2016-01-13 | 福建中网电气有限公司 | Breaker detection apparatus |
| CN105974307A (en) * | 2016-08-01 | 2016-09-28 | 厦门理工学院 | Device and method for online monitoring comprehensive characteristics of high-voltage circuit breaker |
| CN108493041A (en) * | 2018-02-08 | 2018-09-04 | 北京双杰电气股份有限公司 | A kind of unidirectional gas damping buffering insulated tension pole |
| CN110081812A (en) * | 2019-05-30 | 2019-08-02 | 川开电气有限公司 | Dynamic/static contact depth of engagement measuring device |
| CN110567419A (en) * | 2019-07-29 | 2019-12-13 | 深圳供电局有限公司 | breaker contact engagement depth detection device |
| CN110567419B (en) * | 2019-07-29 | 2021-12-07 | 深圳供电局有限公司 | Breaker contact engagement depth detection device |
| CN110286321A (en) * | 2019-07-31 | 2019-09-27 | 麦克奥迪(厦门)机电科技有限公司 | A kind of Intelligent force measuring breaker uses insulated pull rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUAIBEI WANLI INVESTMENT CO., LTD. Free format text: FORMER OWNER: ANHUI LONGPO ELECTRICAL CO., LTD. Effective date: 20120516 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120516 Address after: 235000 No. 91 South Li Road, Anhui, Huaibei Patentee after: Huaibei Wanli Investment Co., Ltd. Address before: 235000 Anhui city of Huaibei Province Economic and Technological Development Zone Longhu Industrial Park No. 86 Zhang Xu Patentee before: Anhui Longpo Electrical Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: ANHUI LONGPO ELECTRICAL CO., LTD. Free format text: FORMER OWNER: HUAIBEI WANLI INVESTMENT CO., LTD. Effective date: 20120626 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120626 Address after: 235000 Anhui Huaibei economic and Technological Development Zone, Longhu Industrial Park, Xu Chang Road No. 86 Patentee after: Anhui Longpo Electrical Co., Ltd. Address before: 235000 No. 91 South Li Road, Anhui, Huaibei Patentee before: Huaibei Wanli Investment Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: HUAIBEI WANLI LONGBO ELECTRIC CO., LTD. Free format text: FORMER OWNER: ANHUI LONGPO ELECTRICAL CO., LTD. Effective date: 20140208 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140208 Address after: 235000 No. 156 Huaihai East Road, Longhu Industrial Park, Huaibei Economic Development Zone, Anhui, China Patentee after: Hubei Wanli Longbo Electrical Co., Ltd. Address before: 235000 Anhui Huaibei economic and Technological Development Zone, Longhu Industrial Park, Xu Chang Road No. 86 Patentee before: Anhui Longpo Electrical Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| 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: 20110817 Termination date: 20161230 |