CN201498422U

CN201498422U - Moving contact device of outdoor high-voltage isolating switch

Info

Publication number: CN201498422U
Application number: CN2009203050647U
Authority: CN
Inventors: 李家兴; 李生斌; 兰方俊
Original assignee: Hubei Hukai Switch Electric Co Ltd
Current assignee: Happy lake open electric (Hubei) Co., Ltd.
Priority date: 2009-06-25
Filing date: 2009-06-25
Publication date: 2010-06-02
Anticipated expiration: 2019-06-25

Abstract

The utility model provides a moving contact device of an outdoor high-voltage isolating switch, which comprises improved contact fingers and an improved contact base. The contact fingers and the contact base are contacted with each other through an arc-shaped surface, thereby increasing the contact area in a smaller space, and making the contact more reliable. During the opening and closing of the contact fingers, the convex arc-shaped surfaces on the contact fingers rotate in the concave arc-shaped surface of the contact base, and under the action of a tension spring and a limit board between the contact fingers, the contact between the contact fingers and the contact base can be always maintained. Soft connection formed by a plurality of layers of metal pieces is additionally arranged between the contact fingers and the contact base, the two ends of the soft connection are fixedly and respectively connected with the contact fingers and the contact base, and the layers of soft metal pieces can not influence the action of the contact fingers and can also ensure the reliable conduction between the contact fingers and the contact base when the high current passes or the contact between the contact fingers and the contact base is not reliable. The utility model has the advantages of beautiful appearance, refined manufature, compact structure and high universality, and the contact fingers and the spring can be conveniently replaced.

Description

Trigger device of outside high-voltage isolation switch

Technical field

The utility model relates to a kind of outdoor high-voltage isolating switch, particularly a kind of trigger device of outside high-voltage isolation switch that is fit to big electric current (2000A).

Background technology

At the outdoor high-voltage isolating switch that uses, in contact apparatus, flexibly connect at present because need between fingertip and the contact base, might there be loose contact in fingertip and contact base, when being connected with big electric current, cause local temperature to raise easily, even generation electric arc, there is big potential safety hazard.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of trigger device of outside high-voltage isolation switch, can guarantee the safe conducting of big electric current, increases the reliability of isolating switch moving contact.

For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of trigger device of outside high-voltage isolation switch, comprise contact tube, a plurality of dynamic contact mechanisms connect the back side by side by holding pin and are connected with contact tube, in single dynamic contact mechanism, fingertip cooperates with contact base by arc surface, and the fingertip middle part is provided with extension spring, extension spring one side is provided with limiting plate, and fingertip is connected with contact base by being flexible coupling.

Described fingertip one end camber, the other end becomes hook-type, and an end of hook-type has the arc surface of a protrusion.

Described contact base is provided with the arc surface of depression.

Two fingertips are installed in the above and below of contact base relatively.

The extension spring two ends are connected with the fingertip of above and below by alignment pin.

Described be flexible coupling be multilayered metal film.

The described material that is flexible coupling comprises copper or copper alloy.

The trigger device of outside high-voltage isolation switch that the utility model provides, by improved fingertip and contact base, fingertip and touching

Adopt the arc surface contact between the headstock, in less space, increased contact area, contact also more reliable, like this in the process of fingertip opening and closing, the arc surface that protrudes on the fingertip rotates in the arc surface of the depression of contact base, cooperate the extension spring between the fingertip and the effect of limiting plate again, can remain the contact between fingertip and the contact base.Between fingertip and contact base, also set up being flexible coupling that multilayered metal film forms, the two ends difference that is flexible coupling is all fixedlyed connected with contact base with fingertip, soft multilayered metal film can not influence the action of fingertip, have big electric current by or fingertip contact with contact base when unreliable, can guarantee the reliable conducting between fingertip and the contact base.The utility model is handsome in appearance, makes exquisiteness, has the advantage of compact conformation, highly versatile, and fingertip, spring can exchange very easily.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model left view.

Embodiment

In Fig. 1, Fig. 2, a kind of trigger device of outside high-voltage isolation switch, comprise contact tube 8, a plurality of dynamic contact mechanisms connect the back side by side by holding pin 7 and are connected with contact tube 8, in single dynamic contact mechanism, fingertip 3 cooperates with contact base 1 by arc surface, and fingertip 3 middle parts are provided with extension spring 5, extension spring 5 one sides are provided with limiting plate 6, and fingertip 32 is connected with contact base 1 by being flexible coupling.

Described fingertip 3 one end cambers, the other end becomes hook-type, and an end of hook-type has the arc surface of a protrusion.

Described contact base 1 is provided with the arc surface of depression.

Two fingertips 3 are installed in the above and below of contact base 1 relatively.

Extension spring 5 two ends are connected with the fingertip 3 of above and below by alignment pin 4.

Describedly be flexible coupling 2 for multilayered metal film.

Described 2 the material of being flexible coupling comprises copper or copper alloy.

Embodiment:

Out of doors in the high voltage isolator trigger device, 6 dynamic contact mechanisms connect the back side by side by holding pin 7 and are connected with contact tube 8, in single dynamic contact mechanism, fingertip 3 one end cambers, being convenient to decide contact enters, fingertip 3 other ends become hook-type, one section arc convex is arranged on the hook-type, on the contact base 1, respectively be provided with an arc groove down, two fingertips 3 are by extension spring 5 and limiting plate 6 relative being installed on the contact base 1, arc convex on the fingertip 3 falls within the arc groove of contact base 1, strain two fingertips 3 by alignment pin 4 at extension spring 5 two ends, because a side has limiting plate 6 to withstand, so strained by extension spring between fingertip 3 and the contact base 1, be the reliability that guarantees to connect, also be provided with between fingertip 3 and the contact base 1 and be flexible coupling 2, be flexible coupling 2 for the multi-layer thin copper sheet, fixedly connected with contact base 1 with fingertip 3 respectively by bolt in two ends, contact unreliable with contact base 1 or big electric current (2000A) is arranged when passing through at fingertip 3 like this, can guarantee the reliability that connects and 2 foldings that can not have influence between the fingertip 3 that is oppositely arranged that are flexible coupling.

Claims

1. trigger device of outside high-voltage isolation switch, comprise contact tube (8), a plurality of dynamic contact mechanisms connect the back side by side by holding pin (7) and are connected with contact tube (8), it is characterized in that: in single dynamic contact mechanism, fingertip (3) cooperates with contact base (1) by arc surface, fingertip (3) middle part is provided with extension spring (5), and extension spring (5) one sides are provided with limiting plate (6), and fingertip (3) is connected with contact base (1) by be flexible coupling (2).

2. a kind of trigger device of outside high-voltage isolation switch according to claim 1 is characterized in that: described fingertip (3) one end cambers, and the other end becomes hook-type, and an end of hook-type has the arc surface of a protrusion.

3. a kind of trigger device of outside high-voltage isolation switch according to claim 1 is characterized in that: described contact base (1) is provided with the arc surface of depression.

4. according to claim 1 or 2 or 3 described a kind of trigger device of outside high-voltage isolation switch, it is characterized in that: two fingertips (3) are installed in the above and below of contact base (1) relatively.

5. a kind of trigger device of outside high-voltage isolation switch according to claim 1 is characterized in that: extension spring (5) two ends are connected with the fingertip (3) of above and below by alignment pin (4).

6. a kind of trigger device of outside high-voltage isolation switch according to claim 1 is characterized in that: described be flexible coupling (2) are multilayered metal film.

7. according to claim 1 or 6 described a kind of trigger device of outside high-voltage isolation switch, it is characterized in that: the described material that is flexible coupling (2) comprises copper or copper alloy.