CN202153499U

CN202153499U - Fast-assembling vacuum load switch for no power-off operation

Info

Publication number: CN202153499U
Application number: CN2011203036685U
Authority: CN
Inventors: 钱远驰; 赵中利; 海磊; 燕琳伟
Original assignee: Zhuhai XJ Electric Co Ltd
Current assignee: Zhuhai XJ Electric Co Ltd
Priority date: 2011-08-19
Filing date: 2011-08-19
Publication date: 2012-02-29
Anticipated expiration: 2021-08-19

Abstract

Disclosed is a fast-assembling vacuum load switch for no power-off operation, featuring high reliability, convenient operation, small volume, and stable performance. The fast-assembling vacuum load switch comprises a mechanism case (7), a gas case (1), a spring-operated mechanism (8), an insulating main shaft (2), and an operating handle (6), wherein the two external ends of the gas case (1) are provided with rapid sockets (4); the internal two sides of the gas case (1) are provided with vacuum explosion chambers (3) and wire in-and-out sleeves (10) which are connected with the external rapid sockets (4); the vacuum explosion chambers (3) and the wire in-and-out sleeves (10) are connected via connecting pull bars (14); the insulating main shaft (2) is vertical to the connecting pull bars (14) and is arranged inside the gas case (1) and can freely rotate; and the connecting pull bars (14) are overlapped upon the insulating main shaft (2). The fast-assembling vacuum load switch for no power-off operation can be widely applied to the intelligent power distribution network field.

Description

Uninterrupted operation is used the fast-assembling vacuum load switch

Technical field

The utility model relates to a kind of uninterrupted operation and uses the fast-assembling vacuum load switch.

Background technology

Along with the fast development of national intelligent power distribution net, to power supply reliability, reduce the loss that brings that has a power failure and have higher requirement, uninterrupted operation has been trend of the times.Both at home and abroad at research and development SF ₆The uninterrupted operation of arc extinguishing is used switch; When the operation circuit occurring and break down through uninterrupted operation is operated with the fast-assembling vacuum load switch; Guide power supply into inicdental bypath service cable circuit; And keep user's uninterrupted power supply, and then break off production line highway section power supply, get into the requirement of operation under the power down mode.But existing most on-load switch often complex structure, bulky, reliability is not high, has limited to its application in power distribution network, add in recent years to SF ₆The discussion that deepens continuously of problem aspect environmental protection is at SF ₆Before the substitute products of gas do not emerge, has the switchgear of a kind of clean and environment-friendly that high reliability, all insulation, non-maintaining, uninterrupted operation that volume is little need in the intelligent power distribution net with the fast-assembling vacuum load switch just.

The utility model content

The utility model technical problem to be solved is the deficiency that overcomes prior art, provides that a kind of reliability is high, easy to operate, volume is little, the uninterrupted operation of stable performance is used the fast-assembling vacuum load switch.

The technical scheme that the utility model adopted is: the utility model comprises mechanism case, be full of the gas tank of malleation SF6 and be positioned at said mechanism case spring operating mechanism, be connected in the operating grip of said spring operating mechanism; The two ends outside at said gas tank are provided with quick socket; The inner both sides of said gas tank are respectively arranged with vacuum interrupter, the turnover thread casing that is connected with outside quick socket; Connect through cylinder lever connecting rod between said vacuum interrupter, the turnover thread casing, an end of cylinder lever connecting rod is to be connected in the indoor moving contact of vacuum extinction to be used for separating brake specifically; Said uninterrupted operation also includes the insulation main shaft that is connected with said spring operating mechanism with the fast-assembling vacuum load switch; It is inner and free to rotate that the vertical cylinder lever connecting rod of said insulation main shaft is arranged at said gas tank; Said cylinder lever connecting rod is overlapped on the said insulation main shaft; Make the insulation main shaft rotate when operating grip drives above-mentioned spring operating mechanism, thereby drive the superincumbent cylinder lever connecting rod axial motion of overlap joint, the indoor contact separating brake of vacuum extinction is perhaps closed a floodgate.

Further; Said spring operating mechanism comprises institutional framework, spring pull bar, rocking arm, spring, main shaft pull bar, transmission arm, mechanism's rotating shaft and is connected in the operation rotating shaft on the operating grip; Transmit operating physical force through transmission arm between said operation rotating shaft and the mechanism's rotating shaft, the rotating shaft of said mechanism is rotationally connected with on the institutional framework; One end of said rocking arm is fixed in the rotating shaft of said mechanism, is connected through said spring between the other end and the spring pull bar; One end of said main shaft pull bar is fixedly connected said insulation main shaft, and the other end is arranged in the track of said rocking arm.

In above-mentioned spring operating mechanism, be to be set with a track latch during practical implementation at the end that said main shaft pull bar matches with said rocking arm, said track latch stretches in the track of said rocking arm.

Further, be provided with protective cover at said vacuum interrupter, turnover thread casing with the outer cover of quick socket junction, be provided with bearer bar in the both sides of said quick socket, said bearer bar is fixedly connected on said gas tank outer wall.

Further, in said mechanism case, be provided with the phasing tester as check usefulness, said turnover thread casing is built-in with inductance loop; Said phasing tester is electrically connected with said inductance loop; Induced voltage is caused in the phasing tester, make the usefulness of electrical verification, nuclear phase, to guarantee to satisfy the safe handling requirement.

The beneficial effect of the utility model is: because the inner both sides of the gas tank in the utility model are respectively arranged with vacuum interrupter, the turnover thread casing that is connected with outside quick socket; Be provided with insulation main shaft and cylinder lever connecting rod in the middle part; Global switch is simple in structure and volume is little, and these live parts are enclosed in and are full of in the stainless gas tank of SF6 gas, adopts vacuum extinction; The SF6 gas-insulated; Break performance is good, reliability is high, and electric arc does not expose in cut-offfing, and can not pollute and damage the electric elements in the cabinet.And adopt the superincumbent cylinder lever connecting rod axial motion of main shaft drive overlap joint of insulating, and realize contact separating brake or combined floodgate that vacuum extinction is indoor, have out characteristics such as distance is little, arc voltage is low, arc energy is little, contact burning is few.Spring operating mechanism owing to the utility model comprises institutional framework, spring pull bar, rocking arm, spring, main shaft pull bar, transmission arm, mechanism's rotating shaft and is connected in the operation rotating shaft on the operating grip in addition; This spring operating mechanism compact conformation is simple, and is irrelevant to the speed of divide-shut brake and service speed, do not receive operator's factor affecting such as operation skill, physical efficiency; Therefore can guarantee that switch is deciliter stable and reliable for performance; And this spring operating mechanism is located in the mechanism case, and mechanism case is located at the gas tank below, belongs to upright mounting means; Can not only be installed on the arbitrary height of electric pole, have advantages such as profile is succinct, sound construction simultaneously.

Description of drawings

Fig. 1 is the internal structure sketch map of the utility model;

Fig. 2 is that the gas tank inner part is connected sketch map with spring operating mechanism in the utility model;

Fig. 3 is the front view of Fig. 2;

Fig. 4 is the structural representation of the spring operating mechanism in the utility model.

Embodiment

As shown in Figure 1, the utility model comprises gas tank 1, insulation main shaft 2, vacuum interrupter 3, quick socket 4, protective cover 5, operating grip 6, mechanism case 7, spring operating mechanism 8, phasing tester 9, turnover thread casing 10 and bearer bar 11.Be provided with above-mentioned quick socket 4 at said gas tank 1 outside two ends; Said gas tank 1 inner both sides are respectively arranged with vacuum interrupter 3, the turnover thread casing 10 that is connected with outside quick socket 4; Connect through cylinder lever connecting rod 14 between said vacuum interrupter 3, the turnover thread casing 10; Cylinder lever connecting rod 14 is connected on the end of vacuum interrupter 3 specifically, and the axial motion through this cylinder lever connecting rod 14 realizes the closed of contacts in the vacuum interrupter 3 and separates; Above-mentioned insulation main shaft 2 vertical cylinder lever connecting rods 14 are arranged at said gas tank 1 inside and free to rotate; Said cylinder lever connecting rod 14 is overlapped in (see figure 2) on the said insulation main shaft 2; Make insulation main shaft 2 rotate when operating grip 6 drives above-mentioned spring operating mechanism 8, thereby superincumbent cylinder lever connecting rod 4 axial motions of drive overlap joint (insulation main shaft 2 rotation amplitudes are less) make contact separating brake or combined floodgate in the vacuum interrupter 3; This kind mode open apart from little, arc voltage is low, arc energy is little, contact burning is few; The number of times that it can cut-off rated current is higher than the switch of other type far away, and the life-span is long, need not overhaul.

Gas tank 1 is by the stainless steel bending plate more than three or three substantially, and therefore bent plate increases its structural strength at crucial stress point punching press reinforcement; Reduce its welding deformation; And after inflation, gas tank is not distortion almost, and this has just been avoided the influence of gas tank distortion to inner high voltage device.Above-mentioned protective cover 5 is set in said vacuum interrupter 3, turnover thread casing 10 and the outside of socket 4 junctions fast, and said bearer bar 11 is fixedly connected on said gas tank 1 outer wall and is arranged at the both sides up and down of quick socket 4.Phasing tester 9 is arranged in the mechanism case 7, and said turnover thread casing 10 is built-in with inductance loop, and said phasing tester 9 is electrically connected with said inductance loop, and induced voltage is caused in the phasing tester, makes the usefulness of electrical verification, nuclear phase, to guarantee to satisfy the safe handling requirement.

Like Fig. 2, Fig. 3, shown in Figure 4, said spring operating mechanism 8 is Knockdown blocks, is assembled by the parts of surperficial zinc electroplating with iridescent yellow chromate conversion coating, blackout, installs simple and conveniently, has good rustless property.It comprises institutional framework 81, spring pull bar 82, rocking arm 83, spring 85, main shaft pull bar 88, transmission arm 89, mechanism's rotating shaft 810 and is connected in the operation rotating shaft 811 on the operating grip 6; Transmit operating physical force through transmission arm 89 between said operation rotating shaft 811 and the mechanism's rotating shaft 810, said mechanism rotating shaft 810 is rotationally connected with on the institutional framework 81; One end of said rocking arm 83 is fixed in the said mechanism rotating shaft 810; Be connected through said spring 85 between the other end and the spring pull bar 82 and be used to provide restoring force; One end of rocking arm 83 is provided with support pin 87; Spring 85 is whole on guide rod 86, and the one of which end withstands said support pin 87, and the other end connects said spring pull bar 82; One end of said main shaft pull bar 88 is fixedly connected said insulation main shaft 2; The other end is arranged in the track of said rocking arm 83; Be to be set with a track latch 84 at the end that said main shaft pull bar 88 matches with said rocking arm 83 specifically, said track latch 84 stretches in the track of said rocking arm 83, when operation rotating shaft 811 is rotated, transmits operating physical force through transmission arm 89; Lead agency rotating shaft 810 and rocking arm 83 rotate; Rocking arm 83 driving main shaft pull bars 88 turn to the certain position in the track then, thereby the inner insulation main shaft 2 of rotation gas tank arrives certain angle, realizes separating brake or combined floodgate.The speed of 8 pairs of divide-shut brakes of this spring operating mechanism and service speed are irrelevant, do not receive operator's factor affecting such as operation skill, physical efficiency, can guarantee that switch is deciliter stable and reliable for performance.

Claims

1. a uninterrupted operation is used the fast-assembling vacuum load switch; Comprise mechanism case (7), be full of the gas tank (1) of malleation SF6 and be positioned at said mechanism case (7) spring operating mechanism (8), be connected in the operating grip (6) of said spring operating mechanism (8); It is characterized in that: the two ends outside at said gas tank (1) are provided with quick socket (4); The inner both sides of said gas tank (1) are respectively arranged with vacuum interrupter (3), the turnover thread casing (10) that is connected with outside quick socket (4), connect through cylinder lever connecting rod (14) between said vacuum interrupter (3), the turnover thread casing (10); Said uninterrupted operation also includes the insulation main shaft (2) that is connected with said spring operating mechanism (8) with the fast-assembling vacuum load switch; It is inner and free to rotate that the vertical cylinder lever connecting rod (14) of said insulation main shaft (2) is arranged at said gas tank (1), and said cylinder lever connecting rod (14) is overlapped on the said insulation main shaft (2).

2. uninterrupted operation according to claim 1 is used the fast-assembling vacuum load switch; It is characterized in that: said spring operating mechanism (8) comprises institutional framework (81), spring pull bar (82), rocking arm (83), spring (85), main shaft pull bar (88), transmission arm (89), mechanism's rotating shaft (810) and is connected in the operation rotating shaft (811) on the operating grip (6); Transmit operating physical force through transmission arm (89) between said operation rotating shaft (811) and the mechanism's rotating shaft (810), said mechanism rotating shaft (810) is rotationally connected with on the institutional framework (81); One end of said rocking arm (83) is fixed in the said mechanism rotating shaft (810), is connected through said spring (85) between the other end and the spring pull bar (82); One end of said main shaft pull bar (88) is fixedly connected said insulation main shaft (2), and the other end is arranged in the track of said rocking arm (83).

3. uninterrupted operation according to claim 2 is used the fast-assembling vacuum load switch; It is characterized in that: an end that matches with said rocking arm (83) at said main shaft pull bar (88) is set with a track latch (84), and said track latch (84) stretches in the track of said rocking arm (83).

4. uninterrupted operation according to claim 1 is used the fast-assembling vacuum load switch; It is characterized in that: be provided with protective cover (5) with the outer cover of quick socket (4) junction at said vacuum interrupter (3), turnover thread casing (10); Be provided with bearer bar (11) in the both sides of said quick socket (4), said bearer bar (11) is fixedly connected on said gas tank (1) outer wall.

5. uninterrupted operation according to claim 1 is used the fast-assembling vacuum load switch; It is characterized in that: in said mechanism case (7), be provided with phasing tester (9); Said turnover thread casing (10) is built-in with inductance loop, and said phasing tester (9) is electrically connected with said inductance loop.