CN2935439Y

CN2935439Y - Conductive device of low-resistance voltage sharing high-voltage segregate switch

Info

Publication number: CN2935439Y
Application number: CN 200620024991
Authority: CN
Inventors: 郑建强
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-20
Filing date: 2006-07-20
Publication date: 2007-08-15
Anticipated expiration: 2016-07-20

Abstract

A conductive element of low resistance voltage-sharing high-voltage isolation switch, which belongs to high-voltage switching technology, is used to solve the problem that the contact area of conductive arm is too small, easily heating, use of many components. The device includes a conductive arm, a contactor, a touch finger, a flexible connection and a rainproof cover, after improvement, the conductive arm is composed of two sheet type rectangular section conductive rows, one end of the electrical conductive row is provide with a contact terminal or a touch finger, the conductive row is integrated with the contact terminal or the touch finger. The utility model can not only reduce contact resistance and enhance reliability, but also simplify the structure and reduce production costs. In addition, the conductive arm is provided with a rainproof cover, which has functions of rainproof, even pressure, heat radiation and arc extinction. Compared with the existing conductive arm with equivalent flowing capacity, the device is higher reliability, smaller contact resistance, lower production cost and longer working life.

Description

The high voltage isolator conductive component that low-resistance is all pressed

Technical field

The utility model relates to the conductive component of a kind of high-voltage electrical equipment, particularly high voltage isolator, belongs to the high-voltage switch gear technical field.

Background technology

A large amount of twin columns type or V-type central authorities breakaway-element high voltage isolators of using on the high-voltage fence, its formation comprises conduction, insulation, transmission and operation part, wherein, current-carrying part is the core component of high voltage isolator, and its structural behaviour directly influences the serviceability of high voltage isolator.Current-carrying part by binding post, conductive arm, junction block, be flexible coupling and contact, fingertip are formed, common structure is that conductive arm is a tubular, it with junction block in soft conductive strips be connected by a transition bending plate, transition bending plate and conductive arm are that semi arch is clamped and connected, soft conductive strips one termination transition bending plate, another termination contact rod, contact rod stretches out outside the junction block, but be connected with the binding post of plug, binding post clamping contact rod rotates thereupon when isolating switch disconnection or closed procedure.This structure exists following shortcoming: 1. the way of contact of tubular conductive arm and transition bending plate is because of the little easily heating of conductive contact surfaces; The structure consumptive material is many and transition resistance is higher; 2. the connected mode of tubular conductive arm and contact, fingertip has two, one, and contact, fingertip list are made a contact block or fingertip piece and conductive arm welding, and this mode often makes the contact heating because of poor welding quality; The 2nd, with contact block or fingertip piece and conductive arm employing bolt crimping mode, this crimping mode is also often generated heat because of contact-making surface is little; 3. contact block or fingertip piece are all silver-plated because of needing due to the structure in the course of processing, cause the production cost height; 4. rain cover only has rainproof function, does not have all pressure, heat sinking function.In addition, because the conductive arm tubular structure makes contact fingertip insertion depth when closing a floodgate little, the self-cleaning ability of contact fingertip is poor, and effective self-cleaning dust stratification causes contact to generate heat and burns.The problems referred to above all can influence the safe operation of electrical network, demand urgently improving.

Summary of the invention

The utility model is used to overcome the defective of prior art and a kind of high voltage isolator conductive component that low-resistance that logical row and contact or fingertip be structure as a whole all presses that conducts electricity is provided.

The alleged problem of the utility model solves with following technical proposals:

The high voltage isolator conductive component that a kind of low-resistance is all pressed, comprise conductive arm, contact, fingertip in the formation, be flexible coupling and rain cover, described rain cover is positioned at conductive arm top, its special feature is: described conductive arm 5 is made of two the logical row of sheet square-section conduction 5-1, the logical row's of conduction a end is provided with contact 7 or fingertip 8, and logical row of conduction and contact or fingertip are structure as a whole.

The high voltage isolator conductive component that above-mentioned low-resistance is all pressed, described rain cover 6 is a flute profile, rain cover end and fingertip 7 ends are isometric.

The high voltage isolator conductive component that above-mentioned low-resistance is all pressed, described be flexible coupling be soft conductive strips 2, described soft conductive strips with the conductive arm plane contact, fixedly connected.

The utility model improves at the drawback of aspects such as common high voltage isolator conductive arm shape, structure and rain cover, its main feature is as follows: 1. conductive arm is made of the logical row of the conduction of two square-sections, the logical row of conduction one end directly is processed into contact or fingertip, be that conductive arm and contact or fingertip form integrative-structure, this improvement not only can reduce contact resistance, improve functional reliability, can also simplified structure and reduce production costs; 2. soft conductive strips are the plane with conductive arm fixedlys connected, and connected mode is reliable, and transition resistance is little; 3. the outer flute profile rain cover isometric with the fingertip end that is provided with of conductive arm, it also has all pressure, extinguishing arc, thermolysis except that the function that possesses common rain cover, avoid fingertip to ablate.Based on These characteristics, the utility model is compared with the conductive arm of existing equal discharge capacity, and functional reliability height, contact resistance are little, low cost of manufacture, long service life.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the A-A cutaway view of Fig. 1.

The label of each parts is expressed as follows among the figure: 1. junction block; 2. soft conductive strips; 3. binding post; 4. contact rod; 5. conductive arm; 5-1. the logical row of conduction; 6. rain cover; 7. fingertip; 8. contact.

Embodiment

Referring to Fig. 1, Fig. 2, the utility model comprises conductive arm, contact, fingertip in constituting, is flexible coupling and rain cover, adopt the little problem of pipe spare contact area at common conductive arm, an important improvement of the present utility model is: conductive arm 5 is made of the logical row of two sheet square-sections conduction 5-1, end the logical row of conduction directly processes contact 7 or fingertip 8, and logical row of conduction and contact or fingertip are structure as a whole.This project organization is simple, need not to use a large amount of standard components connection conductive arms and contact, fingertip piece, having reduced number of parts simultaneously, has reduced contact resistance.In the course of processing, the logical row of conduction can a drawing, and through groove milling, silver-plated making, silver coating is only limited to the regional area of contact or fingertip again, and production technology is simple and production cost is low.

The utility model is flexible coupling and is soft conductive strips 2, and soft conductive strips are plane contact, fixedly connected with conductive arm.Face contact between the element connects, and connected mode is reliable, and because of contact area is bigger, is difficult for heating, the functional reliability height.As seen from the figure, soft conductive strips are positioned at junction block 1, and soft conductive strips 2 are fixedlyed connected with contact rod 4, and binding post 3 is positioned at contact rod top and is connected with contact rod.

Another improvement of the present utility model is, the end of flute profile rain cover 6 and fingertip 7 ends are isometric, and this improvement can make rain cover have all and press, heat radiation, arc eliminator, in particular cases protects fingertip not ablated.For improving the rigidity of conductive arm, laterally be provided with connecting bolt between conductive arm and the rain cover, in like manner, between the logical row of two conductions, also laterally be provided with connecting bolt.

Claims

1. high voltage isolator conductive component that low-resistance is all pressed, comprise conductive arm, contact, fingertip in the formation, be flexible coupling and rain cover, described rain cover is positioned at conductive arm top, it is characterized in that: described conductive arm (5) is made of two sheet square-section logical rows of conduction (5-1), the logical row's of conduction a end is provided with contact (7) or fingertip (8), and logical row of conduction and contact or fingertip are structure as a whole.

2. the high voltage isolator conductive component that low-resistance according to claim 1 is all pressed is characterized in that: described rain cover (6) is a flute profile, and rain cover end and fingertip (7) end is isometric.

3. the high voltage isolator conductive component that low-resistance according to claim 1 and 2 is all pressed is characterized in that: described be flexible coupling be soft conductive strips (2), described soft conductive strips with the conductive arm plane contact, fixedly connected.