CN207651360U - 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 positioning device is installed on the support, interval is installed on static contact along its length on insulating bar, per the configuration of phase static contact, there are one moving contact components, the moving contact component includes moving contact rack and the clip type moving contact that is installed in moving contact rack, the clip type moving contact includes upper and lower two panels moving contact, the moving contact is connected across by spring compression between every mutually adjacent static contact, it is characterised in that：Spring up and down in the contact cavities up and down of at least one moving contact component is in unsymmetrical arrangement.Spring position setting upper asymmetry of the utility model in the clip-on moving contact of two panels, keep the movement of moving contact asynchronous, to avoid moving contact maximum moment of climbing when shift is performed from not being overlapped, to reduce switch conversion torque, operation is lighter reliable, more meaningful to larger current tap switch reliability, convenience.

Description

Strip-like non-excitation tapping switch

Technical field

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

Background technology

Strip-like non-excitation tapping switch is disclosed in Chinese patent CN201130595Y, sets of contacts part is by moving contact With the compositions such as static contact, moving contact is intermediate plate shape, and upper and lower two panels moving contact is connected across by spring compression on static contact, and switch changes Two panels moving contact slides on static contact up and down when gear.The synchronizing moving of the moving contact and up and down synchronous floating make switch maximum, force Square is superimposed, and keeps switching manipulation torque excessive.Wherein, spring pocket is on the axis pin of metal material, wherein metal axis pin is easy shadow Ring the electric field of tap switch.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of energy in view of the deficiency of the prior art Switch conversion torque is reduced, lighter reliable strip-like non-excitation tapping switch is operated.

Technical solution used by the utility model is：

Strip-like non-excitation tapping switch, including insulating bar and support install operation positioning device on the support, are insulating Interval is installed on static contact along its length on bar, and per the configuration of phase static contact, there are one moving contact component, the moving contact groups Part includes moving contact rack and the clip type moving contact that is installed in moving contact rack, and the clip type moving contact includes upper and lower two Piece moving contact, the moving contact are connected across by spring compression between every mutually adjacent static contact, it is characterised in that：It is at least one Spring up and down in the contact cavities up and down of moving contact component is in unsymmetrical arrangement.

According to the above technical scheme, the spring up and down of the side in the contact cavities up and down is in be staggeredly arranged.

According to the above technical scheme, corresponding two panels moving contact up and down is configured with upper lower clapboard on moving contact rack, each Partition board is equipped with plastics spring guide part or positioning pit, the spring guide piece or positioning pit and spring phase configuration.

According to the above technical scheme, the spring guide piece is the cylindrical bump of plastic material or the positioning pit is round Cavity.

According to the above technical scheme, the moving contact is U-shaped.

According to the above technical scheme, two springs and two spring guide pieces are installed in each U-shaped moving contact.

According to the above technical scheme, two floating ends that U-shaped moving contact is corresponded on moving contact rack are equipped with limited block, are used for The limit that floats up and down to U-shaped moving contact.

According to the above technical scheme, the static contact includes static contact ontology and the connecting terminal that is connected with static contact ontology, The connecting terminal is bent downward.

According to the above technical scheme, the connecting terminal is column connecting terminal, and cold pressing wiring hole is equipped in connecting terminal.

According to the above technical scheme, the static contact ontology is column or flat column, and the connecting terminal is flat connects Line terminals are equipped with threaded hole or connecting hole on connecting terminal.

Having the beneficial effect that acquired by the utility model：1, spring position of the utility model in the clip-on moving contact of two panels In setting it is asymmetric or it is multigroup to folder when the springs of the two or more moving contacts in side take asynchronous setting, make moving contact Movement it is asynchronous, to avoid moving contact maximum moment of climbing when shift is performed from not being overlapped, to reduce switch conversion power Square, operation is lighter reliable, more meaningful to larger current tap switch reliability, convenience；2, it is not set in the utility model Metal spring axis pin is conducive to improve electric field, keeps the electric field environment in transformer more preferable, and also further improve transformer can By property；3, the utility model prevents moving contact from being rotated in moving contact rack by setting limited block, can only be with moving contact rack Movement and move, make the structure of the utility model it is compacter, stablize；4, after the static contact of the utility model is bent downward more It is connect conducive to the lead come from below, keeps lead bending radius small, the space 5 of diminution tap switch occupancy inside transformer, When static contact is flat column, it is more advantageous to the overtravel for reducing moving contact, to reduce switching manipulation torque.

Description of the drawings

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

Fig. 2 (installs spring guiding for B-B sectional views in Fig. 1 in a kind of embodiment in the utility model on partition board When part).

Fig. 3 (it is recessed to install positioning for B-B sectional views in Fig. 1 in another embodiment in the utility model on partition board When hole).

Fig. 4 is the C-C sectional views of Fig. 3.

Specific implementation mode

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

As shown in Figs. 1-2, strip-like non-excitation tapping switch, including insulating bar 3 and support 2 are present embodiments provided, it is described Operation positioning device 1 is installed on support 2, the setting of operation positioning device lower end drives gear, insulating bar top setting with teeth The rack of movable stand, rack movable stand is meshed with the gear of operation positioning device 1, keeps rack movable stand vertical along insulating bar To moving back and forth；Interval is installed on static contact 4 along its length on insulating bar 3, configures per phase static contact 4 and is touched there are one dynamic Head assembly, the moving contact component include moving contact rack 8 and the clip type moving contact that is installed in moving contact rack, moving contact Holder 8 is connected with rack movable stand 10.The clip type moving contact includes the U-shaped moving contact 12 of upper and lower two panels, in moving contact rack Lower moving contact is configured with upper lower clapboard 9 in upper correspondence, and the moving contact is connected across every mutually adjacent stationary contact by the compression of spring 11 Between head, in 9 inside of each partition board, corresponding spring is provided with the spring guide piece 7 of plastic material, and the spring pocket is mounted in plastics Outside the spring guide piece 7 of material, the spring guide piece 7 is cylindrical bump (as shown in Figure 2), and the spring guide piece 7 is solid It is scheduled 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, make contact Face evenly, contact performance it is more preferable.Wherein, spring is in not to the side in the contact cavities up and down of at least one moving contact component up and down It is arranged symmetrically (as shown in Figure 4), i.e., the corresponding position of spring is to be staggeredly arranged up and down, and movement when moving contact being made to float up and down is not Synchronous, to avoid the overlapping of moving contact climbing maximum moment when shift is performed, to reduce switch conversion torque, operation is more It is light reliable, it is more meaningful to larger current tap switch reliability, convenience.

Two floating ends that U-shaped moving contact 12 is corresponded on moving contact rack 8 are equipped with limited block 13, make contact cavities 14 in recessed Type shape makes moving contact 12 that cannot be rotated inside contact cavities for the limit to U-shaped moving contact 12, can only be with moving contact rack It is mobile, keep the structure of the utility model compacter, stable.

In the present embodiment, the static contact 4 includes static contact ontology and the connecting terminal being connected with static contact ontology, described Connecting terminal is bent downward.It is more conducive to connect with the lead come from below in this way, keeps lead bending radius small, reduce tap switch Occupy the space of inside transformer wherein.The connecting terminal can be column connecting terminal, and cold pressing is equipped in connecting terminal Wiring hole；It may be flat connecting terminal, upper and lower perforative connecting hole be equipped on connecting terminal.In the figure of the present embodiment It is illustrated by taking flat connecting terminal as an example, as shown in Fig. 2, when for flat connecting terminal, the terminals with lead Son 6 is connected by fastener 5, and such connection more stablizes, is reliable.Static contact ontology in the present embodiment can also be flat Column, such structure is more advantageous to the overtravel for reducing moving contact, to reduce switching manipulation torque.

Certainly, the spring guide piece 7 in the present embodiment is not limited to above-mentioned protruding column shape, may be in moving contact The location dimples being arranged in 8, the location dimples are circular-shaped, concave cavity (as shown in Figure 3,4), are used for and spring phase configuration, specific root Depending on actual demand.

Moving contact component in the present embodiment is not limited to a pair of clip-on U-shaped moving contact, when switching current bigger, needs Multipair wafer type moving contact is in parallel, at this time wherein, when moving contact internal cause spring setting in part is asymmetric, to reducing operational torque effect Fruit becomes apparent.

Claims (10)

1. strip-like non-excitation tapping switch, including insulating bar and support, operation positioning device is installed on the support, in insulating bar On along its length interval be installed on static contact, per phase static contact, there are one moving contact component, the moving contact components for configuration Including 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 are connected across by spring compression between every mutually adjacent static contact, it is characterised in that：It is at least one dynamic Spring up and down in the contact cavities up and down of contact assembly is in unsymmetrical arrangement.

2. strip-like non-excitation tapping switch according to claim 1, it is characterised in that：Side in the contact cavities up and down Spring up and down in being staggeredly arranged.

3. strip-like non-excitation tapping switch according to claim 1 or 2, it is characterised in that on corresponding on moving contact rack Lower two panels moving contact is configured with upper lower clapboard, and plastics spring guide part or positioning pit are equipped on each partition board, and the spring is led To part or positioning pit and spring phase configuration.

4. strip-like non-excitation tapping switch according to claim 3, it is characterised in that：The spring guide piece is plastics material The cylindrical bump of matter or the positioning pit are circular-shaped, concave cavity.

5. strip-like non-excitation tapping switch according to claim 3, it is characterised in that：The moving contact is U-shaped.

6. strip-like non-excitation tapping switch according to claim 5, it is characterised in that：It is installed in each U-shaped moving contact Two springs and two spring guide pieces.

7. strip-like non-excitation tapping switch according to claim 6, it is characterised in that：It is corresponded on moving contact rack U-shaped Two floating ends of moving contact are equipped with limited block, for the limit that floats up and down to U-shaped moving contact.

8. strip-like non-excitation tapping switch according to claim 3, it is characterised in that：The static contact includes static contact sheet Body and the connecting terminal being connected with static contact ontology, the connecting terminal are bent downward.

9. strip-like non-excitation tapping switch according to claim 8, it is characterised in that：The connecting terminal is column wiring Terminal is equipped with cold pressing wiring hole in connecting terminal.

10. strip-like non-excitation tapping switch according to claim 8, it is characterised in that：The static contact ontology is column Or flat column, the connecting terminal are flat connecting terminal, and threaded hole or connecting hole are equipped on connecting terminal.