Contact finger structure and isolating switch

Abstract

A contact finger structure comprises a connecting gate plate and is characterized in that the connecting gate plate comprises at least two partition plates which are arranged in parallel at intervals, a connecting block is arranged between the two partition plates in a pivoted mode, a plurality of terminal shafts are arranged at one end of the connecting gate plate, and the two ends of each terminal shaft penetrate through the two partition plates respectively. Heat dissipation grooves are formed in the positions, close to the wiring end shaft, of the two partition plates. When bearing a short-circuit current, the isolation switch can reduce the heating phenomenon of a terminal shaft of the isolation switch without affecting the strength, so as to ensure the reliable operation in the worst environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of disconnectors, especially to a contact finger structure and a disconnector. BACKGROUND

[0002] The disconnector in the prior art comprises two copper terminal wires and a copper shutter pivotally connected between the two copper terminal wires, the connection between the copper shutter and the copper terminal wire is subject to cost and structural strength considerations, an aluminum alloy support plate is arranged on the copper terminal wire, a tin sheet is further arranged at the connection between the aluminum alloy support plate and the copper terminal wire, and current passes through conductors of different materials such as copper, aluminum alloy and tin in sequence,

[0003] When the disconnector bears short-circuit current, the moving and static contacts of the disconnector heat seriously, the moving contact is provided with straight slots to increase the number of parallel branches, the purpose is to reduce resistance and increase air convection to reduce heat. SUMMARY

[0004] In view of the deficiencies in the background art, the utility model aims to provide a contact finger structure and a disconnector.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A contact finger structure comprises a connecting shutter, the connecting shutter comprises at least two parallel and spaced apart partitions, a connecting block is pivotally arranged between the two partitions, one end of the connecting shutter is provided with a plurality of terminal wire shafts, the two ends of the terminal wire shafts are respectively provided in the two partitions, and the positions of the two partitions close to the terminal wire shafts are provided with heat dissipation grooves.

[0007] Further, the heat dissipation grooves comprise first heat dissipation grooves and second heat dissipation grooves, one end of the first heat dissipation grooves is arranged between adjacent two terminal wire shafts, the other end extends to the edge position of the partition, the slot width of the second heat dissipation grooves is greater than that of the first heat dissipation grooves, and the second heat dissipation grooves and the first heat dissipation grooves are alternately arranged.

[0008] Further, one end of the connecting shutter away from the terminal wire shaft is provided with a connecting shaft, the opposite sides of the two partitions are respectively and symmetrically provided with the connecting shaft, and the connecting shaft is sleeved with a wear-resistant bushing.

[0009] Further, at least one end of the terminal wire shaft is provided with an elastic member and a connecting cap, the elastic member is abutted between the connecting cap and the partition, and the connecting cap shields the elastic member.

[0010] Further, the connecting gate plate comprises connecting plates symmetrically arranged outside the two partition plates, and fasteners are arranged between the connecting plates, the partition plates and the connecting block.

[0011] The isolation switch comprises a contact finger structure, and further comprises

[0012] The first connecting seat comprises a first connecting end and a first fixing seat fixedly arranged on the first connecting end, and the first connecting end further comprises a first connecting piece extending on the first fixing seat.

[0013] The second connecting seat comprises a second connecting end and a second fixing seat fixedly arranged on the second connecting end.

[0014] The second connecting piece is electrically connected to one end of the second connecting end, and the other end of the second connecting piece is electrically connected to the connecting plate of the connecting gate plate.

[0015] Further, the first fixing seat comprises a first bottom plate and a first vertical plate, the first bottom plate is abutted and connected to the first connecting end, the first vertical plate is arranged on the first bottom plate and extends upward, and the first connecting piece extends upward along one side of the first vertical plate; when the two partition plates of the connecting gate plate are closed, the two partition plates are located on the two sides of the first vertical plate,

[0016] Further, the end of the first connecting piece gradually shrinks in the direction away from the first connecting seat, and the end of the first connecting piece further extends and is provided with a spacing groove in the direction of the first connecting seat.

[0017] Further, the second fixing seat comprises a second bottom plate and a second vertical plate, the second bottom plate is abutted on the second connecting end, the second vertical plate is connected to the second bottom plate and extends upward, and the connecting gate plate is hingedly connected to the second vertical plate of the second connecting seat through the connecting rotating shaft.

[0018] Further, the first connecting end, the second connecting end and the connecting block are respectively connected with insulator strings, and the other end of the insulator string is grounded.

[0019] The utility model discloses the beneficial effect is:

[0020] 1. The utility model discloses a contact finger structure, through the setting of the heat dissipation groove, reduces the contact resistance, when bearing short circuit current, can reduce the wiring end shaft heating phenomenon of the isolator under the condition of not influencing the intensity, to ensure the reliable operation in the most adverse environment.

[0021] 2. The utility model provides a kind of contact finger structure, by the setting of connecting shaft, copper connecting gate plate is hinged to second connecting seat by a connecting shaft, wear-resistant bushing is additionally sleeved to the outside of connecting shaft, because connecting shaft does not need to be energized, so the setting of wear-resistant bushing can improve the rotation life of copper connecting gate plate.

[0022] 3. The utility model provides a kind of isolator, current sequentially passes through first wiring terminal, connecting gate plate, second connecting piece and second wiring terminal, isolator can be directly connected with overhead line cable, realizes the flow of electric charge in the same material. DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0024] Figure 1 It is a schematic view of the contact finger structure of the utility model;

[0025] Figure 2 It is front view of the contact finger structure of the utility model;

[0026] Figure 3 It is Figure 2 the enlarged view of A;

[0027] Figure 4 It is the plan view of the contact finger structure of the utility model;

[0028] Figure 5 It is the side view of the contact finger structure of the utility model.

[0029] In the drawing, 10, partition plate;101, first heat dissipation groove;102, second heat dissipation groove;20, connecting block;30, wiring terminal shaft;40, connecting shaft;50, fastener. DETAILED DESCRIPTION

[0030] The utility model will be described in detail in combination with Figures 1-5 The utility model is described in detail.

[0031] A kind of contact finger structure, as Figures 1-5 It is shown, including connecting gate plate, connecting gate plate includes at least two mutually parallel interval settings partition plate 10, connecting block 20 is connected and arranged between two partition plates 10, connecting gate plate is provided with a plurality of wiring terminal shafts 30 in one end, the both ends of wiring terminal shaft 30 are respectively threaded in two partition plates 10, and heat dissipation groove is provided at the position of two partition plates 10 close to wiring terminal shaft 30.

[0032] In the embodiment, the heat dissipation grooves include first heat dissipation grooves 101 and second heat dissipation grooves 102. One end of the first heat dissipation grooves 101 is arranged between two adjacent terminal shafts 30, and the other end extends to the edge of the partition plate 10. The slot width of the second heat dissipation grooves 102 is greater than that of the first heat dissipation grooves 101, and the second heat dissipation grooves 102 are arranged alternately with the first heat dissipation grooves 101.

[0033] In the embodiment, the connecting gate plate is provided with a connecting shaft 40 at one end away from the terminal shaft 30. The opposite sides of the two partition plates 10 are respectively and symmetrically provided with connecting shafts 40, and the connecting shafts 40 are sleeved with bushings. The connecting shaft 40 does not need to be electrified, so the connecting shaft 40 is further sleeved with a wear-resistant bushing. The wear-resistant bushing can be made of plastic shaft sleeve with good wear resistance and high strength. The setting of the wear-resistant bushing can improve the rotation life of the copper connecting gate plate.

[0034] In the embodiment, at least one end of the terminal shaft 30 is provided with an elastic member and a connecting cap. The elastic member is abutted between the connecting cap and the partition plate 10, and the connecting cap shields the elastic member. The connecting cap plays the role of dustproof and high-temperature prevention for the spring.

[0035] In the embodiment, the connecting gate plate includes connecting plates symmetrically arranged outside the two partition plates 10. The connecting plates, the partition plates 10 and the connecting blocks 20 are provided with fasteners 50. The connecting plates are L-shaped connecting plates, and the fasteners 50 are bolts. The above-mentioned L-shaped connecting plates are made of copper. A plurality of bolts pass through the L-shaped connecting plates on one side and the partition plates 10 in sequence, and the bolts also pass through the connecting blocks 20 and the partition plates 10 and the L-shaped connecting plates on the other side.

[0036] A disconnecting switch (not shown in the figure) includes a contact finger structure, and further includes

[0037] A first connecting seat includes a first terminal and a first fixed seat. The first fixed seat is fixedly arranged on a copper terminal. The first terminal further includes a first connecting member extending on the first fixed seat.

[0038] A second connecting seat includes a second terminal and a second fixed seat. The second fixed seat is fixedly arranged on the second terminal.

[0039] A second connecting member. One end of the second connecting member is electrically connected to the second terminal, and the other end of the second connecting member is electrically connected to the connecting plate of the connecting gate plate.

[0040] The current flows through the first connecting terminal, the connecting gate plate, the second connecting piece and the second connecting terminal in turn, and the current does not pass through the first fixed seat and the second fixed seat, and the first fixed seat and the second fixed seat can be made of metal materials or insulating materials with low conductivity, low cost and high hardness, such as aluminum alloy and the like. In addition, the second connecting piece can also realize the flow of electric charge in the same material (such as T2 copper), without the risk of copper-aluminum transition.

[0041] The second connecting piece is a soft copper plate, and the second connecting piece is a copper plate that can be bent and deformed, and when the copper connecting gate plate swings around the second fixed seat, the second connecting piece is deformed by elongation or shortening. The new isolating switch is provided with two second connecting pieces, and the second connecting pieces are arranged on the two sides of the copper connecting gate plate respectively.

[0042] In the embodiment, the first fixed seat includes a first bottom plate and a first vertical plate, the first bottom plate is connected to the first connecting terminal, the first vertical plate is arranged on the first bottom plate and extends upward, and the first connecting piece extends upward along one side of the first vertical plate; wherein the two spacers 10 of the connecting gate plate are located on the two sides of the first vertical plate when the gate is closed.

[0043] In the embodiment, the end of the first connecting piece gradually shrinks in the direction away from the first connecting seat, and the end of the first connecting piece is further provided with a spacing groove extending toward the first connecting seat, which can facilitate ice removal when the end of the first connecting piece is frozen. The end of the first connecting piece extends upward and inclines away from the second connecting seat, which can play a guiding role on the copper connecting gate plate.

[0044] In the embodiment, the second fixed seat includes a second bottom plate and a second vertical plate, the second bottom plate is connected to the second connecting terminal, the second vertical plate is connected to the second bottom plate and extends upward, and the connecting gate plate is hinged to the second vertical plate of the second connecting seat through a connecting shaft 40.

[0045] In the embodiment, the first connecting terminal, the second connecting terminal and the connecting block 20 are respectively connected with an insulator string, and the other end of the insulator string is grounded. The insulator string plays an insulating role. One of the insulator strings is rotationally connected at the connection between the connecting gate plate and the second connecting piece; one end of one of the insulator strings is connected to the connecting block 20, and the other end is grounded.

[0046] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A finger-operated structure, comprising a connecting gate, characterized in that, The connecting gate includes at least two partitions that are arranged parallel to each other and spaced apart. A connecting block is connected between the two partitions. One end of the connecting gate is provided with a plurality of terminal shafts. The two ends of the terminal shafts pass through the two partitions respectively. Heat dissipation grooves are provided on the two partitions near the terminal shafts.

2. The finger structure as described in claim 1, characterized in that, The heat dissipation groove includes a first heat dissipation groove and a second heat dissipation groove. One end of the first heat dissipation groove is located between two adjacent terminal shafts, and the other end extends to the edge of the partition. The groove width of the second heat dissipation groove is greater than the groove width of the first heat dissipation groove. The second heat dissipation groove and the first heat dissipation groove are alternately arranged.

3. A finger structure as described in claim 1, characterized in that, The connecting gate is provided with a connecting shaft at one end away from the terminal shaft, and the connecting shafts are symmetrically provided on opposite sides of the two partitions, with bushings fitted around the connecting shafts.

4. A finger structure as described in claim 1, characterized in that, At least one end of the terminal shaft is provided with an elastic element and a connecting cap, the elastic element abutting between the connecting cap and the partition, and the connecting cap covering the elastic element.

5. A finger structure as described in claim 1, characterized in that, The connecting gate includes connecting plates symmetrically arranged on the outer sides of the two partitions, and fasteners are inserted between the connecting plates, the partitions and the connecting blocks.

6. A disconnect switch, comprising a contact finger structure as described in any one of claims 1-5, characterized in that, Also includes The first connector includes a first terminal and a first fixing seat. The first fixing seat is fixedly disposed on the first terminal. The first terminal also includes a first connector extending from the first fixing seat. The second connector includes a second terminal and a second fixing seat, with the second fixing seat fixedly disposed on the second terminal. as well as The second connector has one end electrically connected to the second terminal and the other end electrically connected to the connecting plate of the connecting gate.

7. A disconnecting switch as described in claim 6, characterized in that, The first fixed base includes a first base plate and a first vertical plate. The first base plate is abutted and connected to the first terminal. The first vertical plate is disposed on the first base plate and extends upward. The first connecting member extends upward along one side of the first vertical plate. The two partitions of the connecting gate are located on both sides of the first vertical plate when the gate is closed.

8. A disconnecting switch as described in claim 7, characterized in that, The end of the first connector gradually tapers away from the first connector seat, and the end of the first connector also extends with a spacer groove in the direction of the first connector seat.

9. A disconnecting switch as described in claim 8, characterized in that, The second fixed base includes a second base plate and a second vertical plate. The second base plate abuts against the second terminal, and the second vertical plate is connected to the second base plate and extends upward. The connecting gate is hinged to the second vertical plate of the second connecting base through the connecting shaft.

10. A disconnecting switch as described in claim 9, characterized in that, The first terminal, the second terminal, and the connecting block are each connected to an insulator string, and the other end of the insulator string is grounded.

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