CN201985012U - Edge structure of alternating current (AC) high voltage isolator - Google Patents
Edge structure of alternating current (AC) high voltage isolator Download PDFInfo
- Publication number
- CN201985012U CN201985012U CN2010206056402U CN201020605640U CN201985012U CN 201985012 U CN201985012 U CN 201985012U CN 2010206056402 U CN2010206056402 U CN 2010206056402U CN 201020605640 U CN201020605640 U CN 201020605640U CN 201985012 U CN201985012 U CN 201985012U
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Abstract
The utility model discloses an edge structure of an alternating current (AC) high voltage isolator. A guide plate is additionally arranged on a rotary axle seat of a movable contact to avoid closing deflexion so as to ensure the closing to be more accurate and smoother; double blades of the movable contact are respectively provided with a through hole at the front end and the rear end of the contacted part between the edge and a static contact, at the contacted part between the movable contact and the rotary axle seat as well as at one side of the movable contact close to an input terminal in a corresponding way; and spring screws are mounted at the positions of the through holes so as to achieve the purpose of ensuring the pressures on the contacted surface between the movable contact and the static contact as well as the contact surface between the double blades of the movable contact and the rotary axle seat are tighter and evener to reduce contact resistances. The edge structure of the alternating current high voltage isolator ensures the movable contact and the static contact to be in excellent contact with the rotary axle seat, avoids heating of the isolator due to bad contact and insufficient sectional area for electricity conduction after the isolator is closed and even avoids accidents of arcing explosion due to incapable opening or fusing of the switch caused by the fusion welding generated between the movable contact and the static contact to influence the normal running of a power system.
Description
Technical field
The utility model relates to a kind of ac high-voltage isolation switch, and is special relevant with the edge of a knife structure of ac high-voltage isolation switch.
Background technology
In society now, whether electric power system can safe operation, directly has influence on economic benefit, social benefit, people's property safety etc.And existing operating ac high-voltage isolation switch exists higher rate of failure in power system operation, traces it to its cause, and mainly is because due to the present existing isolation switch unreasonable structure.Such as, not in same direction, contact area is little when causing combined floodgate, influences handling safety when casting for fixed contact, rotating shaft base and the moving contact double blade of existing disconnecting link.The moving contact of existing isolation switch does not have guide frame at the rotating shaft place, easy deflection influence closing operation during rotation, and, at knife-edge part, the double blade of moving contact is only fixed by a Spring screws, the real contact area of moving contact and fixed contact is little, the pressure of double blade and fixed contact contact-making surface is inhomogeneous, the basic existence has only a camber line contact phenomena, in addition, two conducting terminals (turnover line terminals) are formed by connecting by the multistage copper coin with rotating shaft and fixed contact, exist part copper casting (general 70%～80% of its conductance) contact resistance big in the switch, reduce the electric conductivity and the ampacity of isolation switch, switch contact heating melting welding firmly can not draw away even the starting the arc generation switch blast that fuses, thereby directly influenced the normal operation of electric power system.
In view of this, the inventor improves the edge of a knife structure of ac high-voltage isolation switch specially, and this case produces thus.
The utility model content
The purpose of this utility model is the edge of a knife structure that is to provide a kind of novel ac high-voltage isolation switch, and moving contact is well contacted with fixed contact and rotating shaft base, has rolled up the ampacity of isolating switch, reduces the generation of fault or accident.
In order to achieve the above object, the technical solution of the utility model is as follows:
A kind of edge of a knife structure of ac high-voltage isolation switch, on the rotating shaft base of moving contact, increase prerotation vane, avoid the deflection of closing a floodgate, the double blade of moving contact is at front and back end, the moving contact and rotating shaft base contact position and close input terminal one side corresponding offer through hole thereof of the edge of a knife with the fixed contact contact position, at through hole mounting spring screw, purpose is to make that the contact-making surface upward pressure of moving contact and fixed contact and moving contact double blade and rotating shaft base is tighter, more even, has reduced contact resistance.
Described moving contact double blade can make switch draw back angle and reach 90 ° near the rotating shaft outer end separating brake postive stop baffle being installed, and keeps drawing back the ultimate range of back moving contact, fixed contact.
The double blade of described moving contact is at the drag hook that noctilucent function is installed near the inner position of the edge of a knife (corresponding fixed contact), and the mouth that draws of drag hook is triangle, and drag hook is convenient to operating personnel and is carried out branch, closing operation night.
Described Spring screws is made up of spring, screw and nut, and screw passes through hole corresponding on spring and the double blade and is connected with nut, and the two ends of spring are against between screw terminal and the double blade, and formation dual spring screw is fixed.
Described input terminal and fixed contact adopt the moulding of high conduction performance copper plate integrated punching, outlet terminal and rotating shaft base and guide plate also adopt the moulding of high conduction performance copper plate integrated punching, and all be moulded on the corresponding insulation column, make fixed contact and input terminal, moving contact and outlet terminal realize the zero resistance transition, electric conductivity is more superior, ampacity is bigger, and is safer.
Described fixed contact, rotating shaft base and moving contact double blade keep same direction when casting, contact area maximum when making combined floodgate, and the contact resistance minimum has also increased processing safety simultaneously.
After adopting said structure, the utility model is when closing a floodgate, and the rotation moving contact can deflection by the prerotation vane guiding at rotating shaft base place, and the double blade of the moving contact insertion fixed contact of taking advantage of a situation is realized closing a floodgate smoothly.
Moving contact of the present utility model all is provided with Spring screws in the front and back end of the edge of a knife and fixed contact contact position and moving contact and rotating shaft base contact position and near end of incoming cables one side, double blade is fully contacted with fixed contact and rotating shaft outlet copper coin, the contact area of edge of a knife both sides increases greatly, contact-making surface more comprehensively, the pressure of contact-making surface is more even, it is more accurate to close a floodgate, smooth and easy, guarantee that moving contact well contacts with fixed contact, guarantee that double blade contacts with rotating shaft well, avoid because of edge of a knife combined floodgate back contact area deficiency, the generation electric power accident influences the normal operation of electric power system with the gross area contact pressure is uneven.
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a feed motion schematic diagram of the present utility model.
Label declaration
Moving contact 1 prerotation vane 2
Fixed contact 3 rotating shaft bases 4
Embodiment
As depicted in figs. 1 and 2, the edge of a knife structure of a kind of ac high-voltage isolation switch that the utility model discloses, on the rotating shaft base of moving contact 1, increase prerotation vane 2, outlet terminal 82 adopts the moulding of high conduction performance copper plate integrated punching with rotating shaft base 4 and guide plate 2, input terminal 81 also adopts the moulding of high conduction performance copper plate integrated punching with fixed contact 3, and all is moulded on the corresponding insulation column, both simplifies the structure, reduce contact resistance again in a large number, make the performance of disconnecting link more superior.Simultaneously, fixed contact 3, rotating shaft base 4 keep same direction with moving contact 1 double blade when casting, contact area maximum when making combined floodgate, and the contact resistance minimum has also increased processing safety simultaneously.The double blade of moving contact 1 is at front and back end, the moving contact 1 and rotating shaft base 4 contact positions and close input terminal 81 one sides corresponding offer through hole thereof of the edge of a knife with fixed contact 3 contact positions, at through hole mounting spring screw, Spring screws specifically is made up of spring 5, screw 6 and nut 7, screw 6 passes through hole corresponding on spring 5 and the double blade and is connected with nut 7, the two ends of spring 5 are against between screw terminal and the double blade, and above-mentioned measure has all guaranteed excellent conducting performance.Moving contact 1 double blade can make switch draw back angle and reach 90 ° near the rotating shaft outer end separating brake postive stop baffle being installed, and keeps drawing back the ultimate range of back moving contact 1, fixed contact 3.The double blade of moving contact 1 is at the drag hook that noctilucent function is installed near the inner position of the edge of a knife (corresponding fixed contact 3), and the mouth that draws of drag hook is triangle, and drag hook is convenient to operating personnel and is carried out branch, closing operation night.
The utility model switch is when closing a floodgate, and rotation moving contact 1 makes the whole moving contact blade 1 can deflection at the rotating shaft place by prerotation vane 2 guiding rotations, and the double blade of moving contact 1 is taken advantage of a situation and inserted fixed contact 3, realizes accurately, closes a floodgate swimmingly.Behind the combined floodgate, be subjected to spring 5 elastic reactions, the double blade of moving contact 1 is fully contacted with fixed contact 3 at knife-edge part, double blade fully contacts with the contact and the prerotation vane of outlet terminal at the rotating shaft place, the contact area of the edge of a knife increases greatly, contact-making surface more comprehensively, the pressure of contact-making surface is more even, guarantee that moving contact 1 can both well contact with fixed contact 3 and rotating shaft place, avoid closing a floodgate the back because of moving contact 1 with fixed contact 3 and rotating shaft place 4 contact area deficiencies or interface pressure is inhomogeneous produces edge of a knife heating, even melting welding live switch can not separating brake or the fusing starting the arc cause the phenomenon generation of switch blast and influence the normal operation of electric power system.
The utility model is the human oriented design of convenient installation and operating personnel's work:
One, the firm banking shape can satisfy the fixed dimension of various brandreths;
Two, turnover line square hole and slotted eye cooperate, and can satisfy the size of the device clamp boring that cooperates with it, are easy to cooperate;
Three, branch, combined floodgate drag hook draws mouthful triangularity and has noctilucent function and be convenient to operating personnel's night time operation.
Above-mentioned is preferred embodiment of the present utility model only, is not the restriction to this case practical range, and all conversion or designs of being done according to the common technology means in present technique field based on the utility model all fall into protection range of the present utility model.
Claims (6)
1. the edge of a knife structure of an ac high-voltage isolation switch, it is characterized in that: on the rotating shaft base of moving contact, increase prerotation vane, the double blade of moving contact is at front and back end, the moving contact and rotating shaft base contact position and close input terminal one side corresponding offer through hole thereof of the edge of a knife with the fixed contact contact position, at through hole mounting spring screw.
2. the edge of a knife structure of ac high-voltage isolation switch according to claim 1 is characterized in that: the moving contact double blade is being equipped with the separating brake postive stop baffle near the rotating shaft outer end.
3. the edge of a knife structure of ac high-voltage isolation switch according to claim 1, it is characterized in that: input terminal and fixed contact adopt the moulding of high conduction performance copper plate integrated punching, outlet terminal and rotating shaft base and guide plate also adopt the moulding of high conduction performance copper plate integrated punching, and all are moulded on the corresponding insulation column.
4. the edge of a knife structure of ac high-voltage isolation switch according to claim 1 is characterized in that: fixed contact, two copper coins of rotating shaft base and moving contact double blade take to keep same direction when casting.
5. the edge of a knife structure of ac high-voltage isolation switch according to claim 1, it is characterized in that: Spring screws is made up of spring, screw and nut, screw passes through hole corresponding on spring and the double blade and is connected with nut, and the two ends of spring are against between screw terminal and the double blade.
6. the edge of a knife structure of ac high-voltage isolation switch according to claim 1 is characterized in that: the double blade of moving contact is equipped with the drag hook of noctilucent function in the position near edge of a knife the inner, and the mouth that draws of drag hook is triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206056402U CN201985012U (en) | 2010-11-08 | 2010-11-08 | Edge structure of alternating current (AC) high voltage isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206056402U CN201985012U (en) | 2010-11-08 | 2010-11-08 | Edge structure of alternating current (AC) high voltage isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201985012U true CN201985012U (en) | 2011-09-21 |
Family
ID=44612468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206056402U Expired - Fee Related CN201985012U (en) | 2010-11-08 | 2010-11-08 | Edge structure of alternating current (AC) high voltage isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201985012U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779679A (en) * | 2012-07-24 | 2012-11-14 | 吉林省达美电器设备有限公司 | Circuit breaker |
| CN103077843A (en) * | 2011-10-26 | 2013-05-01 | 苏州闪联高压电器有限公司 | Outdoor alternating current high-voltage isolation switch |
| CN104715958A (en) * | 2013-12-16 | 2015-06-17 | 西门子公司 | Earthing switch and disconnecting switch with earthing switch |
| CN105575716A (en) * | 2015-12-15 | 2016-05-11 | 国家电网公司 | High voltage isolation switch with contact finger pressure test device |
| CN105761997A (en) * | 2016-04-05 | 2016-07-13 | 宁波鹿鼎电子科技有限公司 | Isolation switch |
| CN107706033A (en) * | 2017-10-13 | 2018-02-16 | 镇江市丹高电器有限公司 | A kind of transformer isolating switch special |
| CN108010785A (en) * | 2017-11-01 | 2018-05-08 | 王亚苹 | A kind of switchable electric wire connecting junction of power grid list rocking arm |
| CN109786169A (en) * | 2018-12-28 | 2019-05-21 | 国家电网公司 | New distribution net isolation switch |
| CN110137019A (en) * | 2019-06-28 | 2019-08-16 | 瓯越电力科技有限公司 | A kind of movable touch knife device and its disconnecting switch |
| CN112201514A (en) * | 2020-09-29 | 2021-01-08 | 广东电网有限责任公司 | Manual-automatic integrated breaking and connecting device |
| WO2022257765A1 (en) * | 2021-06-11 | 2022-12-15 | 华能伊敏煤电有限责任公司 | Improvement method for overheating of excitation-based disconnector or overheating of high-power disconnector |
-
2010
- 2010-11-08 CN CN2010206056402U patent/CN201985012U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077843A (en) * | 2011-10-26 | 2013-05-01 | 苏州闪联高压电器有限公司 | Outdoor alternating current high-voltage isolation switch |
| CN102779679A (en) * | 2012-07-24 | 2012-11-14 | 吉林省达美电器设备有限公司 | Circuit breaker |
| CN104715958B (en) * | 2013-12-16 | 2017-12-12 | 西门子公司 | A kind of earthed switch and its disconnecting switch |
| CN104715958A (en) * | 2013-12-16 | 2015-06-17 | 西门子公司 | Earthing switch and disconnecting switch with earthing switch |
| CN105575716A (en) * | 2015-12-15 | 2016-05-11 | 国家电网公司 | High voltage isolation switch with contact finger pressure test device |
| CN105575716B (en) * | 2015-12-15 | 2017-12-05 | 国家电网公司 | A kind of high voltage isolator with sensing finger pressure test device |
| CN105761997A (en) * | 2016-04-05 | 2016-07-13 | 宁波鹿鼎电子科技有限公司 | Isolation switch |
| CN107706033A (en) * | 2017-10-13 | 2018-02-16 | 镇江市丹高电器有限公司 | A kind of transformer isolating switch special |
| CN107706033B (en) * | 2017-10-13 | 2020-04-10 | 镇江市丹高电器有限公司 | Special isolating switch for transformer |
| CN108010785A (en) * | 2017-11-01 | 2018-05-08 | 王亚苹 | A kind of switchable electric wire connecting junction of power grid list rocking arm |
| CN109786169A (en) * | 2018-12-28 | 2019-05-21 | 国家电网公司 | New distribution net isolation switch |
| CN109786169B (en) * | 2018-12-28 | 2024-03-01 | 国家电网公司 | Disconnecting switch of power distribution network |
| CN110137019A (en) * | 2019-06-28 | 2019-08-16 | 瓯越电力科技有限公司 | A kind of movable touch knife device and its disconnecting switch |
| CN112201514A (en) * | 2020-09-29 | 2021-01-08 | 广东电网有限责任公司 | Manual-automatic integrated breaking and connecting device |
| WO2022257765A1 (en) * | 2021-06-11 | 2022-12-15 | 华能伊敏煤电有限责任公司 | Improvement method for overheating of excitation-based disconnector or overheating of high-power disconnector |
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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: XIAMEN ZHINENGDA ELECTRONIC CONTROL CO., LTD. Free format text: FORMER OWNER: LIN ZHIYI Effective date: 20120903 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120903 Address after: 361000 Fujian Province, Xiamen District of Xiangan city science and Technology Park (three Yinlu Yinlu) Patentee after: Xiamen Zhinengda Electric Control Co., Ltd. Address before: 361000, No. three, Lane 58, Xiang Feng street, Xiang Ping Street, Tongan District, Fujian, Xiamen Patentee before: Lin Zhiyi |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20151108 |
|
| EXPY | Termination of patent right or utility model |