Quick dismounting and mounting structure of field suppression switch

Abstract

A quick dismounting and mounting structure for a field suppression switch comprises a switch cabinet, the field suppression switch and an incoming cable are arranged in the switch cabinet, supporting shells are fixedly connected to the inner walls of the two sides of the switch cabinet, a plurality of copper bars are arranged in the switch cabinet, the two ends of each copper bar are connected with the supporting shells through insulators, and each wire core of the incoming cable is connected with each copper bar. And the copper bar is connected with the field suppression switch through the copper foil flexible connector. The utility model is used for solving the problems that the service life of the field suppression switch is shortened and the wiring is not beautiful due to the fact that the screw hole positions are staggered and twisting force of the field suppression switch is applied by forced installation when the field suppression switch is replaced.

Description

Technical Field

[0001] The utility model relates to a quick disassembly and assembly structure of a field discharge switch. Background Art

[0002] When a DC field discharge switch of a hydropower station generator fails, it is generally handled by replacing it with a new one. When removing the old field discharge switch and installing a new one, the position of the screw holes of the new field discharge switch may be offset from the position of the screw holes of the original old field discharge switch. At the same time, since the field discharge switch and the incoming cable are connected by a rigid copper busbar, when the screw hole positions are offset, the copper busbar and the incoming cable need to be bent, twisted or tilted to connect the incoming cable to the new field discharge switch. The disadvantages of this treatment method are as follows: First, a twisting force will be applied to the field discharge switch, and this twisting force changes with the on-off of the field discharge switch. After a long time, the field discharge switch will be damaged due to fatigue, affecting the service life of the field discharge switch; Second, the copper busbar and the incoming cable look crooked, affecting the appearance. Content of the Utility Model

[0003] The purpose of the utility model is to provide a quick disassembly and assembly structure of a field discharge switch, which is used to solve the problems that when replacing the field discharge switch, the screw hole positions are offset, and a twisting force is applied to the field discharge switch during forced installation, resulting in a reduction in the service life of the field discharge switch and unbeautiful wiring.

[0004] In order to solve the above problems, the technical solution of the utility model is as follows:

[0005] A quick disassembly and assembly structure of a field discharge switch includes a switch cabinet. A field discharge switch and an incoming cable are arranged in the switch cabinet. Support shells are fixedly connected to the inner walls on both sides of the switch cabinet. Multiple copper busbars are arranged in the switch cabinet. Both ends of each copper busbar are connected to the support shell through insulators. Each core of the incoming cable is connected to each copper busbar. The copper busbar is connected to the field discharge switch through a copper foil flexible connection.

[0006] A hanging block is arranged in the support shell. Slide groove holes are formed in the support shell on both sides of the hanging block. Guide rods are arranged in the slide groove holes. One end of each guide rod is fixedly connected to the hanging block, and the other end is fixedly connected to the insulator. A screw rod is fixedly connected to the hanging block. The upper end of the screw rod passes through the support shell and is connected to a lifting nut.

[0007] Multiple horizontal waist-shaped holes are formed in the copper busbar. One end of the copper foil flexible connection is connected to the horizontal waist-shaped hole through a bolt.

[0008] Multiple vertical waist-shaped holes are formed in the copper busbar. The core is connected to the vertical waist-shaped hole through a wire nose and a bolt.

[0009] The beneficial effects of the present utility model are as follows: First, the connection between the copper bar and the terminal of the field discharge switch is changed to a copper foil flexible connection to eliminate the torsional force caused by the misalignment of the screw holes. Second, the lower end of the copper foil flexible connection can be translated through the horizontal kidney-shaped holes, enabling the copper foil flexible connection to maintain a vertical state and making the wiring beautiful. Finally, the copper bar can move up and down, which not only further facilitates the docking of the copper bar with the incoming cable and the copper foil flexible connection, but also facilitates the horizontal adjustment of the copper bar, improving the installation speed of the new field discharge switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present utility model will be further described below with reference to the accompanying drawings:

[0011] Figure 1 is a schematic structural diagram of the present utility model,

[0012] Figure 2 is Figure 1 the schematic cross-sectional structure diagram at A-A in

[0013] Figure 3 is Figure 1 the schematic cross-sectional structure diagram at B-B in

[0014] Figure 4 is Figure 1 the schematic cross-sectional structure diagram at C-C in

[0015] In the figure: switchgear 1, field discharge switch 2, copper foil flexible connection 3, support shell 4, copper bar 5, incoming cable 6, vertical kidney-shaped hole 7, horizontal kidney-shaped hole 8, sliding groove hole 9, screw 10, lifting nut 11, insulator 12, hanging block 13. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] As shown in Figure 1 and 3As shown in the figure, a quick disassembly and assembly structure of a field discharge switch includes a switch cabinet 1, in which a field discharge switch 2 and an incoming line cable 6 are provided. On both inner walls of the switch cabinet 1, support shells 4 are fixedly connected. In the switch cabinet 1, a plurality of copper bars 5 are provided. Both ends of each copper bar 5 are connected to the support shell 4 through insulators 12. Each core of the incoming line cable 6 is connected to each copper bar 5. The copper bar 5 is connected to the field discharge switch 2 through a copper foil flexible connection 3. After replacing the old field discharge switch 2 with a new one in the switch cabinet 1, the copper bar 5 and the terminals of the field discharge switch 2 are butted through the copper foil flexible connection 3. By utilizing the bendable characteristic of the copper foil flexible connection 3, the twisting force caused by the misalignment of the screw holes of the old and new field discharge switches 2 during installation can be eliminated.

[0018] As Figure 2 shown in the figure, a hanging block 13 is provided in the support shell 4. Slide groove holes 9 are provided on both sides of the support shell 4 of the hanging block 13. Guide rods are provided in the slide groove holes 9. One end of the guide rod is fixedly connected to the hanging block 13, and the other end is fixedly connected to the insulator 12. A screw rod 10 is fixedly connected to the hanging block 13. The upper end of the screw rod 10 passes through the support shell 4 and is connected to a lifting nut 11. By rotating the lifting nuts 11 at both ends of the copper bar 5, the height position and level of the copper bar 5 can be conveniently and quickly adjusted, which can further facilitate the connection of the copper bar 5 with the incoming line cable 6 and the copper foil flexible connection 3.

[0019] A plurality of horizontal waist-shaped holes 8 are provided on the copper bar 5. One end of the copper foil flexible connection 3 is connected to the horizontal waist-shaped hole 8 through a bolt. The horizontal waist-shaped holes 8 can enable the lower end of the copper foil flexible connection 3 to translate, so that the copper foil flexible connection 3 can maintain a vertical state and ensure beautiful wiring.

[0020] As Figure 4 shown in the figure, a plurality of vertical waist-shaped holes 7 are provided on the copper bar 5. The cores are connected to the vertical waist-shaped holes 7 through wire terminals and bolts. The vertical waist-shaped holes 7 can facilitate the connection of the incoming line cable 6 with the copper bar 5 and avoid applying stress from the incoming line cable 6 to the copper bar 5.

[0021] The content described in the embodiments of this specification is only an enumeration of the implementation forms of the utility model concept. The protection scope of the utility model should not be regarded as limited to the specific forms stated in the embodiments. The protection scope of the utility model also extends to equivalent technical means that those skilled in the art can think of according to the utility model concept.

Claims

1. A quick disassembly and assembly structure for a field discharge switch, comprising a switch cabinet (1), wherein a field discharge switch (2) and an incoming line cable (6) are arranged in the switch cabinet (1), and it is characterized in that: On the inner walls on both sides of the switch cabinet (1), there are support shells (4) fixedly connected. Inside the switch cabinet (1), there are multiple copper bars (5). Both ends of each copper bar (5) are connected to the support shell (4) through insulators (12). Each core of the incoming cable (6) is connected to each copper bar (5). The copper bar (5) is connected to the excitation suppression switch (2) through a copper foil flexible connection (3).

2. The quick disassembly and assembly structure of a field discharge switch according to claim 1, characterized in that: Inside the support shell (4), there is a hanging block (13). On the support shell (4) on both sides of the hanging block (13), there are sliding groove holes (9). Inside the sliding groove holes (9), there are guide rods. One end of the guide rod is fixedly connected to the hanging block (13), and the other end is fixedly connected to the insulator (12). A screw rod (10) is fixedly connected to the hanging block (13). The upper end of the screw rod (10) passes through the support shell (4) and is connected to a lifting nut (11).

3. A quick disassembly and assembly structure of a field discharge switch according to claim 1 or 2, characterized in that: On the copper bar (5), there are multiple horizontal waist-shaped holes (8). One end of the copper foil flexible connection (3) is connected to the horizontal waist-shaped hole (8) through a bolt.

4. A quick disassembly and assembly structure of a field discharge switch according to claim 1 or 2, characterized in that: On the copper bar (5), there are multiple vertical waist-shaped holes (7). The core is connected to the vertical waist-shaped hole (7) through a wire nose and a bolt.

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