CN202205634U

CN202205634U - Novel disconnecting switch contact structure

Info

Publication number: CN202205634U
Application number: CN2011203236408U
Authority: CN
Inventors: 王漳泉; 吴承德; 郭文川
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-31
Filing date: 2011-08-31
Publication date: 2012-04-25
Anticipated expiration: 2021-08-31

Abstract

A novel disconnecting switch contact structure comprises contacts arranged two insulating supports and knife switches between the contacts. The contacts and wiring terminals are integrated; the contacts extend out to form the wiring terminals, and directly connected on the insulating supports; a dynamic contact extends upwards to form a raised plate-shaped structure, and two sides of the dynamic contact are electrically connected with the knife switches in a matched manner, and the knife switches comprise a first knife switch and a second knife switch, and are located on two sides of the dynamic and the static contacts side by side. By adopting the technical scheme in which the dynamic contact and the static contact are integrally designed, the resistance of the whole circuit is greatly lowered to 45 to 50 micro-Omega, and the dynamic contact and the static contact are directly fixed on corresponding insulating supports via two bolts, so that the structure is simple, the reliability of the circuit is ensured, besides, the cost and the complexity of the structure are lower compared with the structure that the terminals and the contacts are separately designed.

Description

A kind of isolation switch contact new structure

Technical field

The utility model relates to a kind of high voltage isolator, particularly a kind of isolation switch contact new structure.

Background technology

High voltage isolator is mainly used in outdoor AC 10-40.5kv; In the 50HZ electric power system; Carry out the changing-over of the charged high-tension line of load and isolate charged high-tension line with by the electrical isolation of electric equipments such as the high voltage bus that overhauled or circuit breaker, fields such as the extensive suitable power of product, railway, mine, oil field.

Existing isolating switch mainly comprises: first insulation column, second insulation column, mounting panel, moving contact, first binding post, fixed contact, second binding post, first disconnecting link, second disconnecting link; Wherein two insulation column vertical fixing are on mounting panel; Be fixed with first binding post and moving contact on first insulation column; Be fixed with second binding post and fixed contact on second insulation column, be hinged with disconnecting link on the fixed contact, the disconnecting link other end cooperates with the moving contact inclined-plane; Wherein also comprise the hook that is connected with first insulation column, also include draw ring and snap close between disconnecting link.Existing moving contact partly is connected with insulation column through a bolt, and it is fixing to coat the realization of contact left and right sides between contact and insulation column, to install a supporting plate additional, and contact one side is installed leading truck specially; Fixed contact partly is to realize electrically connecting through disconnecting link, conductive plate, binding post.Such structure is except installing complicacy, cost height, and resistance can be very big in the course of the work, and the loop resistance of whole switch is bigger, and it is not very desirable causing electric conductivity, fail safe and reliability.

The utility model content

To the deficiency of prior art, the utility model provides a kind of improvement structure, and the integral type design through dynamic and static contact reduces the loss in the whole loop of isolating switch, ensures the safety of circuit.

For reaching this purpose, the utility model is realized through following scheme:

A kind of isolation switch contact new structure; Comprise the contact that is installed on two insulation columns and the disconnecting link between the contact; Wherein said contact and binding post are integral molding, the contact formation binding post that stretches out, and this contact is directly fixed on the insulation column.

Further, on described two insulation columns dynamic and static contact is installed respectively, dynamic and static contact is an integral design with corresponding binding post.

Further, described moving contact extends upward its two sides of formation projection platy structure and cooperates realization to electrically connect with disconnecting link, and wherein disconnecting link comprises first disconnecting link and second disconnecting link, is positioned at dynamic and static contact both sides side by side.

Further, said contact is directly fixed on insulation column through bolt, and contact forms two flank section, respectively establishes a through hole on it, and the above-mentioned through hole of bolt-through also is connected in and realizes the location on the insulation column.

Through technique scheme, first binding post and moving contact on the dynamic contact mechanism design for integral type, and second binding post and fixed contact on the static contact mechanism also design for integral type; Make whole loop resistance be reduced to 45～50 μ Ω greatly, far below the national standard with product, and contact is directly fixed on the corresponding insulation column by two bolts; Mechanism becomes succinct like this; Simultaneously circuit safety is reliable, simultaneously, has reduced terminal and contact and has separated cost and complexity when designing.

Description of drawings

Fig. 1 is the stereogram of a kind of isolation switch contact new structure of the utility model.

Fig. 2 is the stereogram of a kind of isolation switch contact new structure of the utility model (hiding a disconnecting link).

Embodiment

Combine accompanying drawing and embodiment that the utility model is further specified at present:

As illustrated in fig. 1 and 2; A kind of isolation switch contact new structure; Comprise: first insulation column 1, second insulation column 2, mounting panel 3, moving contact 4, fixed contact 5, first disconnecting link 6, second disconnecting link 6 ', wherein, first insulation column 1 and second insulation column, 2 vertical fixing are on mounting panel 3; Be fixed with moving contact 4 on first insulation column 1; Wherein first binding post 41 is an integral molding with moving contact 4, is fixed with fixed contact 5 on second insulation column 2, and wherein second binding post 51 also is an integral molding with fixed contact 5.Moving contact extends upward formation projection platy structure 42 its two sides and cooperates realization to electrically connect with disconnecting link; The disconnecting link other end is articulated on the fixed contact 5; At first disconnecting link 6 and second disconnecting link 6 ' also be fixed with draw ring 61 and snap close 62, also be fixed with being connected of cooperating of snap close 62 at the movable contact head end and collude 63.Said contact is directly fixed on

insulation column

1,2 through bolt, and contact forms two flank section 40, respectively establishes a through hole on it, and the above-mentioned through hole of bolt-through also is connected in and realizes positioning and fixing on the insulation column.

The loop resistance national standard of isolating switch is 300 μ Ω, and the utility model makes whole loop resistance be reduced to 45～50 μ Ω greatly through the improvement of structure of contact terminal.

The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model can also have various changes and modifications, and these variations and improvement all are the protection range of the utility model.

Claims

1. isolation switch contact new structure; Comprise the contact that is installed on two insulation columns and the disconnecting link between the contact; It is characterized in that: described contact and binding post are integral molding, the contact formation binding post that stretches out, and this contact is directly fixed on the insulation column.

2. a kind of according to claim 1 isolation switch contact new structure is characterized in that: on described two insulation columns dynamic and static contact is installed respectively, dynamic and static contact is an integral design with corresponding binding post.

3. like the said a kind of isolation switch contact new structure of claim 2; It is characterized in that: described moving contact extends upward its two sides of formation projection platy structure and cooperates realization to electrically connect with disconnecting link; Wherein disconnecting link comprises first disconnecting link and second disconnecting link, is positioned at dynamic and static contact both sides side by side.

4. a kind of according to claim 1 isolation switch contact new structure; It is characterized in that: said contact is directly fixed on insulation column through bolt; And contact forms two flank section, respectively establishes a through hole on it, and the above-mentioned through hole of two bolt-throughs also is connected in realization location on the insulation column.