CN206022086U - A kind of strip-like non-excitation tapping switch - Google Patents

Abstract

The utility model discloses a kind of strip-like non-excitation tapping switch, including insulating bar and support, operation positioner is installed on the support, on insulating bar, interval is installed on static contact along its length, a moving contact component is configured with per phase static contact, the moving contact component includes moving contact rack and the clip type moving contact being installed in moving contact rack, the clip type moving contact includes upper and lower two panels moving contact, the moving contact is connected across between every mutually adjacent static contact by spring compression, it is characterised in that：On moving contact rack, corresponding upper and lower two panels moving contact is configured with lower clapboard, is provided with plastics spring guide or positioning pit, the spring guide piece or positioning pit and spring phase configuration on each dividing plate.Metal spring bearing pin is not set in this utility model, is conducive to improving electric field, and is reduced switch occupancy transformator height space, make the electric field environment in transformator more preferable, further increase the reliability of transformator and reduce its height, so as to reduce transformer manufacturing cost.

Description

A kind of strip-like non-excitation tapping switch

Technical field

This utility model is related to a kind of strip-like non-excitation tapping switch.

Background technology

A kind of strip-like non-excitation tapping switch is disclosed in Chinese patent CN201130595Y, and its sets of contacts part is by moving Contact and the first-class composition of stationary contact, moving contact are intermediate plate shape, and upper and lower two panels moving contact is connected across on static contact by spring compression, opened When closing gear shift, upper and lower two panels moving contact slides on static contact.Wherein, spring is sleeved on the bearing pin of metal material, wherein, gold Category bearing pin easily affects the electric field of shunting switch.While the synchronizing moving of the moving contact and up and down synchronization are floated and make switch maximum, force Square is superimposed, and makes switching manipulation torque excessive.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of energy for the deficiency that above-mentioned prior art is present Improve transformator internal electric field, improve the strip-like non-excitation tapping switch of its unfailing performance.

The technical scheme adopted by this utility model for：

A kind of strip-like non-excitation tapping switch, including insulating bar and support, installs operation positioner on the support, On insulating bar, interval is installed on static contact along its length, is configured with a moving contact component per phase static contact, described dynamic tactile Head assembly includes that moving contact rack and the clip type moving contact being installed in moving contact rack, the clip type moving contact include Lower two panels moving contact, the moving contact are connected across between every mutually adjacent static contact by spring compression, it is characterised in that：Dynamic On contact supporting, corresponding upper and lower two panels moving contact is configured with lower clapboard, is provided with plastics spring guide or fixed on each dividing plate Position hole, the spring guide piece or positioning pit and spring phase configuration.

Above-mentioned technical proposal is pressed, the spring guide piece is circle for the cylindrical bump or the positioning pit of plastic material Cavity.

Above-mentioned technical proposal is pressed, moving contact can be one or more pairs of to folder.

Above-mentioned technical proposal is pressed, the moving contact is U-shaped.By above-mentioned technical proposal, in each U-shaped moving contact, install two Individual spring and two spring guide pieces.

Above-mentioned technical proposal is pressed, two floating ends of corresponding U-shaped moving contact are equipped with limited block on moving contact rack, are used for To the spacing of U-shaped moving contact.

Press above-mentioned technical proposal, the binding post that the static contact is included static contact body and is connected with static contact body, The binding post is bent downwards.

Above-mentioned technical proposal is pressed, the binding post is column binding post, is provided with, in binding post, wiring hole of colding pressing.

Above-mentioned technical proposal is pressed, and the binding post is flat binding post, and connecting hole is provided with binding post.

Having the beneficial effect that acquired by this utility model：1st, metal spring bearing pin is not set in this utility model, be conducive to changing Kind electric field, makes the electric field environment in transformator more preferable, also further increases the reliability of transformator；In addition, by arrange every Plate, improves the electric field in switch top and bottom Qi Shen directions, and reliability is higher and is beneficial to volume of transformer miniaturization；2nd, this reality With new by arranging limited block, prevent moving contact from rotating in moving contact rack, can only move with the movement of moving contact rack Dynamic, make structure of the present utility model compacter, stable；3rd, this utility model is set in the spring position of the clip-on moving contact of two panels Put asymmetric, or the spring of multigroup two or more moving contacts in side to during folder takes asynchronous setting, makes moving contact Motion is asynchronous, so as to avoid moving contact maximum moment of climb when gearshift is performed from not overlapping, changes torque so as to reduce switch, The lighter reliability of operation, more meaningful to larger current shunting switch reliability, convenience；4th, static contact of the present utility model to It is more conducive to be connected with the lead for coming from below after lower bending, makes lead bending radius little, reduces shunting switch and take in transformator The space in portion.

Description of the drawings

Fig. 1 is structure chart of the present utility model.

Fig. 2 (installs spring guiding on dividing plate for B-B sectional views in the Fig. 1 in a kind of embodiment in this utility model During part).

C-C sectional views in Fig. 3 Fig. 2.

Fig. 4 (installs positioning recessed on dividing plate for B-B sectional views in the Fig. 1 in another embodiment in this utility model During hole).

D-D sectional views of the Fig. 5 for Fig. 4.

Specific embodiment

The utility model is described in further detail below in conjunction with the accompanying drawings.

As Figure 1-3, a kind of strip-like non-excitation tapping switch is present embodiments provided, including insulating bar 3 and support 2, Operation positioner 1 is installed on the support 2, and operation positioner lower end arranges drive gear, arranges above the insulating bar There are tooth bar movable stand, the tooth bar of tooth bar movable stand to be meshed with the gear of operation positioner 1, tooth bar movable stand is enable along insulation Bar longitudinally moves back and forth；On insulating bar 3, interval is installed on static contact 4 along its length, is configured with one per phase static contact 4 Moving contact component, the moving contact component include moving contact rack 8 and the clip type moving contact being installed in moving contact rack, move Contact supporting 8 is connected with tooth bar movable stand 10.The clip type moving contact includes the U-shaped moving contact 12 of upper and lower two panels, in moving contact Lower moving contact correspondingly being gone up on support and being configured with lower clapboard 9, the moving contact is connected across every mutually adjacent by the compression of spring 11 Between static contact, on the inside of each dividing plate 9, corresponding spring is provided with the spring guide piece 7 of plastic material, and the spring is sleeved on Outside the spring guide piece 7 of plastic material, the spring guide piece 7 is cylindrical bump (as shown in Figure 2,4), the spring guiding Part 7 is fixed in moving contact rack 8, is integrally formed with moving contact rack 8.

In the present embodiment, two springs and two spring guide pieces are symmetrically installed in each U-shaped moving contact 12, contact is made Face evenly, contact performance more preferable.On moving contact rack 8, two floating ends of corresponding U-shaped moving contact 12 are equipped with limited block 13, Moving contact is made to fluctuate when rotating less, so as to reduce switch rotating torque, contact cavities 14 are in matrix shape, for U-shaped Moving contact 12 spacing, moving contact 12 is rotated inside contact cavities, can only move with moving contact rack, make this practicality new The structure of type is compacter, stable.In the present embodiment, the static contact 4 is included static contact body and is connected with static contact body Binding post, the binding post bent downwards.So it is more conducive to be connected with the lead for coming from below, makes lead bending radius Little, reduce the space of shunting switch occupancy inside transformer wherein.The binding post can be column binding post, in wiring Wiring hole of colding pressing is provided with terminal；Can also be flat binding post, the connecting hole for running through up and down is provided with binding post. Illustrate by taking flat binding post as an example in the figure of the present embodiment, as shown in Fig. 2 when for flat binding post when, its It is connected by securing member 5 with the binding post 6 of lead, such connection is more stable, reliable.

Certainly, the spring guide piece 7 in the present embodiment is not limited to above-mentioned protruding column shape, and which can also be in moving contact The location dimples arranged in 8, the location dimples are circular-shaped, concave cavity (as shown in Fig. 3,5), for spring phase configuration, concrete root Depending on according to actual demand.

In the present embodiment, the upper lower spring of the intracavity of contact up and down of at least one moving contact component can also be made in asymmetric Arrangement (as shown in Figure 5), that is, go up the correspondence position of lower spring for being staggeredly arranged, make the motion of moving contact asynchronous, so as to avoid Moving contact maximum moment of climbing when gearshift is performed is not overlapped, and so as to reduce switch conversion torque, operates lighter reliability, to compared with Large-current tap switch reliability, convenience are more meaningful.

Moving contact component in the present embodiment is not limited to a pair clip-on U-shaped moving contacts, when switching current is bigger, needs Multipair wafer type moving contact is in parallel, now wherein, when part moving contact endogenous cause of ill spring arranges asymmetric, to reducing operational torque effect Fruit becomes apparent from.

Static contact body in the present embodiment can also be flat column, and such structure is more beneficial for reducing moving contact Overtravel, so that reduce switching manipulation torque.

Claims (9)

1. a kind of strip-like non-excitation tapping switch, including insulating bar and support, installs operation positioner, exhausted on the support On edge bar, interval is installed on static contact along its length, is configured with a moving contact component, the moving contact per phase static contact Component includes that moving contact rack and the clip type moving contact being installed in moving contact rack, the clip type moving contact include up and down Two panels moving contact, the moving contact are connected across between every mutually adjacent static contact by spring compression, it is characterised in that：Touch dynamic On head bracket, corresponding upper and lower two panels moving contact is configured with lower clapboard, is provided with plastics spring guide or positioning on each dividing plate Hole, the spring guide piece or positioning pit and spring phase configuration.

2. a kind of strip-like non-excitation tapping switch according to claim 1, it is characterised in that：The spring guide piece is modeling The cylindrical bump or the positioning pit of material material is circular-shaped, concave cavity.

3. a kind of strip-like non-excitation tapping switch according to claim 1, it is characterised in that：Moving contact can be a pair or many To folder.

4. a kind of strip-like non-excitation tapping switch according to claim 1 and 2, it is characterised in that：The moving contact is U Type.

5. a kind of strip-like non-excitation tapping switch according to claim 4, it is characterised in that：In each U-shaped moving contact Install two springs and two spring guide pieces.

6. a kind of strip-like non-excitation tapping switch according to claim 4, it is characterised in that：Corresponding on moving contact rack Two floating ends of U-shaped moving contact are equipped with limited block, for spacing to fluctuating for U-shaped moving contact.

7. a kind of strip-like non-excitation tapping switch according to claim 1 and 2, it is characterised in that：The static contact includes Static contact body and the binding post being connected with static contact body, the binding post are bent downwards.

8. a kind of strip-like non-excitation tapping switch according to claim 7, it is characterised in that：The binding post is column Binding post, is provided with, in binding post, wiring hole of colding pressing.

9. a kind of strip-like non-excitation tapping switch according to claim 7, it is characterised in that：The binding post is flat Shape binding post, is provided with screwed hole or connecting hole on binding post.