Bus splicing assembly for medium-voltage environment-friendly gas switch cabinet

Abstract

The utility model discloses a bus splicing assembly for a medium-voltage environment-friendly gas switch cabinet, which comprises an upper gas box and a lower gas box, a first inner cone is mounted at the bottom in the upper gas box, the lower half part of the first inner cone extends into the lower gas box, a copper guide piece is mounted in the first inner cone, one end of the copper guide piece penetrates out of the bottom of the first inner cone, and the other end of the copper guide piece extends into the lower gas box. A first copper plate and a second copper plate are mounted on two sides of the copper guide piece; a circuit breaker is installed on one side wall of the lower air box, an installation groove is formed above the circuit breaker, a conductive column is installed in the installation groove, one end of the first copper plate is connected with the copper guide piece, and the other end of the first copper plate is connected with the conductive column. The copper plates and the busbars are of L-shaped structures, so that layout and installation of the internal copper bars and the busbars can be facilitated, the space utilization rate in the box body is improved, more connection and wiring can be realized in a limited space, and space occupation in electrical equipment or a system is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of busbar splicing technology, specifically to a busbar splicing component for medium-voltage environmentally friendly gas switchgear. Background Technology

[0002] Medium-voltage environmentally friendly gas-insulated switchgear is a key piece of equipment in power systems, playing a vital role in power distribution, control, and protection. With the rapid development of the power industry and increasing environmental awareness, higher demands are being placed on the insulation performance, operational reliability, and environmental friendliness of switchgear.

[0003] Currently, the internal busbar installation of gas switchgear uses a single busbar connection or a stacking method to splice the busbars. This will increase the heat generation when current flows through the busbars, which is not conducive to heat dissipation, and it is also not conducive to the layout of the busbar installation space inside the switchgear. Utility Model Content

[0004] The purpose of this invention is to provide a busbar splicing assembly for medium-voltage environmentally friendly gas switchgear, so as to solve the problems of busbar heat dissipation and installation layout in the prior art.

[0005] To achieve the above objectives, this utility model proposes:

[0006] A busbar splicing assembly for a medium-voltage environmentally friendly gas switchgear includes an upper gas box and a lower gas box. A first inner cone is installed at the bottom of the upper gas box, with its lower half extending into the lower gas box. A copper conductor is installed inside the first inner cone, with one end protruding from the bottom of the first inner cone. A first copper plate and a second copper plate are installed on both sides of the copper conductor. A circuit breaker is installed on one side wall of the lower gas box, with a mounting groove above the circuit breaker. A conductive post is installed inside the mounting groove. One end of the first copper plate is connected to the copper conductor, and the other end is connected to the conductive post. A second, third, and fourth inner cone are installed at equal intervals inside the lower gas box. A busbar assembly is connected to the output end of the circuit breaker, and the busbar assembly overlaps the second, third, and fourth inner cones.

[0007] Preferably, both the first copper plate and the second copper plate are L-shaped, with the first copper plate located on the lower left side of the second copper plate. A first copper pad is installed between the first copper plate and the second copper plate, and the first copper pad is located above the conductive post.

[0008] Preferably, the busbar group includes a first busbar and a second busbar. One end of the first busbar is connected to the output terminal of the circuit breaker, and the other end is connected to the conductive end of the second inner cone. The first busbar is also connected to the conductive ends of the third inner cone and the fourth inner cone.

[0009] Preferably, both the first busbar and the second busbar are L-shaped, with the first busbar located to the lower right of the second busbar, and a plurality of second copper pads installed between the first busbar and the second busbar.

[0010] Preferably, there are two second copper pads, which are respectively installed at the beginning and end of the first busbar and the second busbar.

[0011] Preferably, a protective layer is provided on the outer walls of the first and second busbars at both ends, and the thickness of the protective layer is between 5um and 10um.

[0012] The beneficial effects of this utility model are:

[0013] 1. The L-shaped structure of both the copper plates and busbars facilitates the layout and installation of the internal copper busbars and busbars, improves the space utilization of the enclosure, and enables more connections and wiring within a limited space, effectively reducing the space occupied by electrical equipment or systems.

[0014] 2. The first busbar and the second busbar are connected by a second copper gasket. The two second copper gaskets are respectively distributed at the beginning and end of the first busbar and the second busbar. This can stably support both ends of the busbar, and there will also be gaps between the two busbars. These gaps allow air to flow and help dissipate the heat generated by the busbar during operation.

[0015] The features and advantages of this utility model will be described in detail through embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a front view of the gas switchgear of this utility model.

[0017] Figure 2 This is a diagram showing the internal structure of the upper and lower air boxes of this utility model.

[0018] Figure 3 This is a perspective view of the first inner cone, second inner cone, third inner cone, etc. of this utility model;

[0019] Figure 4 This is a cross-sectional view of the first inner cone, second inner cone, third inner cone, etc. of this utility model.

[0020] Reference numerals: 1. Upper air box; 2. Lower air box; 3. First inner cone; 4. Copper conductor; 5. First copper plate; 6. Second copper plate; 7. Circuit breaker; 8. Mounting slot; 9. Conductive post; 10. Second inner cone; 11. Third inner cone; 12. Fourth inner cone; 13. First copper gasket; 14. First busbar; 15. Second busbar; 16. Second copper gasket. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0023] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this utility model pertains. The words “a” or “one” and similar terms used in this application specification and claims do not indicate a limitation of quantity, but rather indicate the presence of at least one. “A plurality” includes two, equivalent to at least two. The words “comprising” or “including” and similar terms mean that the element or object preceding “comprising” or “including” covers the element or object listed following “comprising” or “including” and its equivalents, and does not exclude other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0024] Example 1:

[0025] Please refer to Figure 1-Figure 4 A busbar splicing assembly for a medium-voltage environmentally friendly gas switchgear includes an upper gas box 1 and a lower gas box 2. A first inner cone 3 is installed at the bottom of the upper gas box 1, with its lower half extending into the lower gas box 2. A copper conductor 4 is installed inside the first inner cone 3, with one end of the copper conductor 4 protruding from the bottom of the first inner cone 3. A first copper plate 5 and a second copper plate 6 are installed on both sides of the copper conductor 4. The first inner cone 3 extends into the lower gas box 2, and the first copper plate 5 and the second copper plate 6 are fitted together at both ends of the bottom of the copper conductor 4 to connect the circuit loops of the upper gas box 1 and the lower gas box 2.

[0026] A circuit breaker 7 is installed on one side wall of the lower air box 2. A mounting groove 8 is provided above the circuit breaker 7. A conductive post 9 is installed inside the mounting groove 8. One end of the first copper plate 5 is connected to the copper conductor 4, and the other end is connected to the conductive post 9. Both the first copper plate 5 and the second copper plate 6 are L-shaped. The first copper plate 5 is located on the lower left side of the second copper plate 6.

[0027] A first copper gasket 13 is installed between the first copper plate 5 and the second copper plate 6, and the first copper gasket 13 is located above the conductive post 9. When the first copper plate 5 and the second copper plate 6 are clamped at both ends of the bottom of the copper conductor 4, a gap is generated. The first copper gasket 13 is installed between this gap and close to the top of the conductive post 9, thereby stabilizing the splicing installation between the first copper plate 5 and the second copper plate 6. The first copper gasket 13 connects the tail ends of the first copper plate 5 and the second copper plate 6 to the top of the conductive post 9. The L-shaped structure facilitates the layout and installation of the internal copper busbars, improves the space utilization inside the enclosure, and enables more connections and wiring within a limited space, effectively reducing the space occupied by electrical equipment or systems.

[0028] Based on the above scheme, the circuit of the copper conductor 4 can be connected to the circuit breaker 7, that is, the circuit circuit connecting the upper gas box 1 and the lower gas box 2.

[0029] Please refer to Figure 2-Figure 3 Inside the lower air box 2, a second inner cone 10, a third inner cone 11, and a fourth inner cone 12 are installed at equal intervals. A busbar group is connected to the output terminal of the circuit breaker 7, and the busbar group overlaps the second inner cone 10, the third inner cone 11, and the fourth inner cone 12. The busbar group includes a first busbar 14 and a second busbar 15. One end of the first busbar 14 is connected to the output terminal of the circuit breaker 7, and the other end is connected to the conductive end of the second inner cone 10. The first busbar 14 also overlaps the conductive ends of the third inner cone 11 and the fourth inner cone 12. Both the first busbar 14 and the second busbar 15 are L-shaped, with the first busbar 14 located to the lower right of the second busbar 15.

[0030] The short side (L) of the second busbar 15 is connected to the output terminal of the circuit breaker 7, and the tail end of the long side (L) is connected to the second inner cone 10. The third inner cone 11 and the fourth inner cone 12 are connected to this long side section. The L-shaped structure of the first busbar 14 and the second busbar 15 allows for the distributed installation of multiple inner cones, unifying the circuitry of the inner cones to the circuit breaker 7. The first busbar 14 and the second busbar 15 are arranged in parallel, effectively saving installation space and making the overall structure more compact.

[0031] Two second copper pads 16 are installed between the first busbar 14 and the second busbar 15. That is, the first busbar 14 and the second busbar 15 are connected by two second copper pads 16, so that a gap is created between the first busbar 14 and the second busbar 15, thus preventing heat accumulation when the busbar is working.

[0032] Specifically, the first busbar 14 and the second busbar 15 are respectively installed at their respective ends. This ensures stable support at both ends of the busbars, and the gaps between the two busbars allow for airflow, facilitating the rapid dissipation of heat generated during operation. Compared to a completely enclosed structure, this design more effectively reduces the temperature of the busbars, improving their overload capacity and operational stability. It also reduces heat accumulation between the busbars, allowing heat to be more easily dissipated to the external environment through air convection and radiation, thereby reducing the overall temperature of the busbar system.

[0033] It is worth noting that the busbar and copper plate have corresponding holes, which can be directly tightened with nuts, making installation convenient and easy.

[0034] Example 2:

[0035] A protective layer is provided on the outer walls of both ends of the first busbar 14 and the second busbar 15. This protective layer is formed using a silver plating process, specifically silver plating on both ends of the first busbar 14 and the second busbar 15. The protective layer is 8µm thick, which significantly improves the conductivity of the busbars, reduces resistance, and thus improves the current transmission efficiency in the circuit. Silver has strong corrosion resistance and can effectively resist the erosion of environmental factors such as oxidation and corrosion. After silver plating, the silver layer formed on the surface of the busbars effectively protects the copper substrate from corrosion, thereby extending the service life of the busbars.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A busbar splicing assembly for a medium-voltage environmentally friendly gas switchgear, comprising an upper gas box and a lower gas box, characterized in that, A first inner cone is installed at the bottom of the upper air box, and the lower half of the first inner cone extends into the lower air box. A copper conductor is installed inside the first inner cone, with one end of the copper conductor protruding from the bottom of the first inner cone. A first copper plate and a second copper plate are installed on both sides of the copper conductor. A circuit breaker is installed on one side wall of the lower air box, and an installation groove is provided above the circuit breaker. A conductive post is installed inside the installation groove. One end of the first copper plate is connected to the copper conductor, and the other end is connected to the conductive post. A second inner cone, a third inner cone, and a fourth inner cone are installed at equal intervals inside the lower air box. The output end of the circuit breaker is connected to a busbar group, which overlaps the second inner cone, the third inner cone, and the fourth inner cone.

2. The busbar splicing assembly for medium-voltage environmentally friendly gas switchgear according to claim 1, characterized in that, Both the first copper plate and the second copper plate are L-shaped. The first copper plate is located on the lower left side of the second copper plate. A first copper pad is installed between the first copper plate and the second copper plate, and the first copper pad is located above the conductive post.

3. The busbar splicing assembly for medium-voltage environmentally friendly gas switchgear according to claim 1, characterized in that, The busbar group includes a first busbar and a second busbar. One end of the first busbar is connected to the output terminal of the circuit breaker, and the other end is connected to the conductive end of the second inner cone. The first busbar is also connected to the conductive ends of the third inner cone and the fourth inner cone.

4. The busbar splicing assembly for medium-voltage environmentally friendly gas switchgear according to claim 3, characterized in that, Both the first busbar and the second busbar are L-shaped. The first busbar is located to the lower right of the second busbar. Several second copper pads are installed between the first busbar and the second busbar.

5. The busbar splicing assembly for medium-voltage environmentally friendly gas switchgear according to claim 4, characterized in that, There are two second copper pads, which are respectively installed at the beginning and end of the first busbar and the second busbar.

6. The busbar splicing assembly for medium-voltage environmentally friendly gas switchgear according to claim 3, characterized in that, The first busbar and the second busbar have protective layers on their outer walls at both ends, and the thickness of the protective layers is between 5um and 10um.

Images