A gas-filled circuit breaker with a bellows

Abstract

The utility model discloses a corrugated pipe built -in's inflation cabinet circuit breaker belongs to inflation cabinet circuit breaker technical field, including aluminium plate, be equipped with a plurality of first installation hole and a plurality of second installation hole on the aluminium plate, the gas tank is installed in the first side of aluminium plate and with aluminium plate forms airtight space, and a plurality of solid -sealed pole is provided in airtight space, operating mechanism, operating mechanism installs in the second side of aluminium plate, corrugated pipe, corrugated pipe whole is located in the gas tank, and be sealed installation in first installation hole position department, one end of corrugated pipe is connected and is provided with transmission rod, transmission rod with operating mechanism is connected. The utility model carries out built -in processing to corrugated pipe, is favorable to the whole cabinet depth of inflation cabinet further carries out compression processing, can greatly degree protection corrugated pipe from the harm of outside, can also reduce the pressure in the gas tank, and then alleviate the influence to solid -sealed pole in the process of closing and opening.

Description

Technical Field

[0001] This utility model belongs to the technical field of gas-insulated switchgear circuit breakers, and particularly relates to a gas-insulated switchgear circuit breaker with a built-in corrugated pipe. Background Technology

[0002] The design of the transmission structure of a gas-insulated switchgear circuit breaker is part of the dynamic sealing of the gas-insulated switchgear, and its design directly affects the reliability and lifespan of the equipment. Currently, most gas-insulated switchgear circuit breakers adopt an external transmission sealing bellows structure design.

[0003] Chinese utility model patent application number "202222764089.1" entitled "Flexible Assembled C-GIS Gas-Insulated Switchgear Circuit Breaker" (hereinafter referred to as the prior art) discloses "a flexible assembled C-GIS gas-insulated switchgear circuit breaker, including: a sealing aluminum plate, a fixed sealing pole, and an operating mechanism; the operating mechanism is connected to the fixed sealing pole through a sealing assembly, the sealing assembly including a transmission rod, a bellows, and a sealing shell, the bellows passing through a through hole in the sealing aluminum plate, and its moving and stationary ends extending out of the inner and outer sides of the sealing aluminum plate, respectively, and the transmission rod is..." The center of the bellows passes through and is sealed and welded to the moving end of the bellows. The stationary end of the bellows is sealed and connected to the outer side of the sealing aluminum plate through a sealing shell. Two moving end connection seats and two first stationary end connection seats are symmetrically arranged on the solid-sealed pole, electrically connected to its moving contact. A copper busbar is fixed to one of the moving end connection seats and one of the first stationary end connection seats. A heat sink is installed on the remaining moving end connection seat and the remaining first stationary end connection seat. This utility model circuit breaker can reduce the size of the circuit breaker and improve the flexibility and versatility of assembly. (Refer to the accompanying drawings in the prior art specification.) Figures 2 to 4 As shown, it is clear that part of the bellows is located at the pole end and the other part is located at the operating mechanism end, so the circuit breaker adopts a partially external structural design.

[0004] In actual use, the operating mechanism of the circuit breaker needs to maintain a certain distance from the gas box to place and connect the transmission sealing bellows. Therefore, the bellows with an external structure design will have the problem that the depth of the gas cabinet cannot be further compressed. Moreover, the external structure design of the bellows during the gas box assembly process makes the bellows very susceptible to collisions, which can lead to damage. Utility Model Content

[0005] This utility model overcomes the shortcomings of the prior art and provides a corrugated pipe built-in gas-insulated switchgear circuit breaker to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a gas-insulated switchgear circuit breaker with a built-in corrugated pipe, comprising...

[0007] An aluminum plate, wherein the aluminum plate is provided with a plurality of first mounting holes and a plurality of second mounting holes;

[0008] An air box is installed on the first side of the aluminum plate and forms a sealed space with the aluminum plate. Several solid-sealed poles are provided in the sealed space.

[0009] An operating mechanism is installed on the second side of the aluminum plate, and the operating mechanism drives the moving contact inside the solidified pole.

[0010] A bellows is located entirely within the gas box and is sealed at the first mounting hole. One end of the bellows is connected to a transmission rod, which is connected to the operating mechanism to drive the moving contact inside the solid-sealed pole through the bellows.

[0011] In a preferred embodiment of this utility model, the edge of the gas box is sealed to the edge of the aluminum plate, and the first mounting hole and the second mounting hole are sealed to form the sealed space.

[0012] In a preferred embodiment of this utility model, the aluminum plate has a groove on its edge, the gas box has a protrusion on its edge, a sealing ring is provided in the groove, and the protrusion is embedded in the groove to seal the aluminum plate and the gas box.

[0013] In a preferred embodiment of this utility model, a sealing pressure plate is provided on the second side of the aluminum plate, and the sealing pressure plate is installed at the first mounting hole position to seal the corrugated pipe.

[0014] In a preferred embodiment of this utility model, the sealing plate is a circular annular plate structure, and the sealing plate is coaxially arranged with the first mounting hole.

[0015] In a preferred embodiment of this utility model, the transmission rod extends out of the first mounting hole and is connected to the operating mechanism.

[0016] In a preferred embodiment of this utility model, a sealing screw is provided in the second mounting hole, and the solid sealing pole is connected to the aluminum plate through the sealing screw.

[0017] In a preferred embodiment of this utility model, a housing is installed on the second side of the aluminum plate, and the housing positions the operating mechanism.

[0018] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0019] The gas-insulated switchgear circuit breaker of this utility model incorporates a built-in corrugated pipe, which helps to further compress the overall depth of the gas-insulated switchgear, making its volume smaller and facilitating its application in confined spaces. Furthermore, the built-in structure of the corrugated pipe greatly protects it from external damage and reduces the pressure inside the gas box, thereby mitigating the impact on the solid-sealed poles during the closing and opening processes. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0021] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0023] Figure 3 This is a cross-sectional view of a preferred embodiment of the present invention;

[0024] Figure 4 This is a partial structural schematic diagram of a preferred embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the aluminum plate structure of a preferred embodiment of the present invention;

[0026] In the figure: 10, aluminum plate; 101, groove; 11, first mounting hole; 12, second mounting hole; 20, air box; 201, protrusion; 21, solid sealing pole; 30, operating mechanism; 40, bellows; 41, transmission rod; 50, sealing ring; 60, sealing pressure plate; 70, sealing screw; 80, chassis; 100, first side; 200, second side. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0028] This embodiment provides a gas-insulated switchgear circuit breaker with a built-in bellows 40. The built-in bellows 40 of this gas-insulated switchgear circuit breaker helps to further compress the overall depth of the gas-insulated switchgear, making the volume of the gas-insulated switchgear smaller. This is beneficial for the application of the gas-insulated switchgear in confined environments. Furthermore, the built-in structure of the bellows 40 can greatly protect the bellows 40 from external damage. Moreover, the built-in structure of the bellows 40 can reduce the pressure inside the gas box 20, thereby reducing the impact on the solid-sealed pole 21 during the closing and opening process.

[0029] Combination Figures 1 to 5 As shown, the gas-insulated switchgear circuit breaker of this embodiment includes an aluminum plate 10, a gas box 20, an operating mechanism 30, and a bellows 40. The gas box 20 is installed on the first side 100 of the aluminum plate 10, and the operating mechanism 30 is installed on the second side 200 of the aluminum plate 10. A solid-sealed pole 21 is provided inside the gas box 20. The operating mechanism 30 drives the moving contact inside the solid-sealed pole 21 to make the moving contact and the stationary contact open and close.

[0030] In this embodiment, the aluminum plate 10 is provided with a plurality of first mounting holes 11 and a plurality of second mounting holes 12. The gas box 20 is installed on the first side 100 of the aluminum plate 10 and forms a sealed space with the aluminum plate 10. A plurality of solidified pole posts 21 are provided in the sealed space. The bellows 40 is located entirely inside the gas box 20 and is sealed at the position of the first mounting hole 11. One end of the bellows 40 is connected to a transmission rod 41, which is connected to the operating mechanism 30 so as to pass the solidified pole posts through the bellows 40. Driven by the moving contact inside 21, the bellows 40 in this embodiment is installed inside the gas box 20, realizing the overall built-in structure design of the bellows 40. This is beneficial to further compress the overall depth of the gas cabinet, making the volume of the gas cabinet smaller, which is beneficial for the application of the gas cabinet in confined environments. In actual use, the operating mechanism 30 pushes the transmission rod 41, which in turn pushes the moving contact inside the solidified pole 21 through the bellows 40, so that the moving contact and the stationary contact can perform the opening and closing action.

[0031] Specifically, in this embodiment, the edge of the gas box 20 is sealed to the edge of the aluminum plate 10. After sealing the first mounting hole 11 and the second mounting hole 12, a closed space is formed, and the solidified pole 21 is located in the closed space.

[0032] In this embodiment, the aluminum plate 10 has a groove 101 on its edge, and the air box 20 has a protrusion 201 on its edge. A sealing ring 50 is provided in the groove 101. After the protrusion 201 is embedded in the groove 101, the aluminum plate 10 and the air box 20 are sealed together. With the cooperation of the sealing ring 50, the sealed connection between the aluminum plate 10 and the air box 20 is achieved.

[0033] Combination Figure 1 and Figure 2 As shown, a sealing plate 60 is provided on the second side 200 of the aluminum plate 10 in this embodiment. The sealing plate 60 is installed at the position of the first mounting hole 11 to seal the bellows 40. The sealing plate 60 is a circular plate structure. The sealing plate 60 and the first mounting hole 11 are coaxially arranged. In this embodiment, the sealing plate 60 is a sealing flange. While the bellows 40 is installed at the first mounting hole 11, the sealing plate 60 seals the position of the first mounting hole 11 to ensure the airtight environment inside the gas box 20.

[0034] In this embodiment, the transmission rod 41 extends out of the first mounting hole 11 and is connected to the operating mechanism 30. A sealing screw 70 is provided in the second mounting hole 12. The solid-sealed pole 21 is connected to the aluminum plate 10 through the sealing screw 70. In this embodiment, the sealing screw 70 is used to install the solid-sealed pole 21, so as to achieve stable installation of the solid-sealed pole 21 and seal the second mounting hole 12.

[0035] Furthermore, a housing 80 is mounted on the second side 200 of the aluminum plate 10, and the housing 80 positions the operating mechanism 30.

[0036] In this embodiment, the bellows 40 is internally installed inside the gas-insulated switchgear 20, achieving internal processing of the bellows 40. The internal installation of the bellows 40 inside the gas-insulated switchgear 20 helps to further compress the overall depth of the switchgear, making the volume of the switchgear smaller. This is beneficial for the application of the switchgear in confined environments. Furthermore, the internal structure of the bellows 40 can greatly protect the bellows 40 from external damage. Moreover, the internal structure of the bellows 40 can also reduce the pressure inside the gas-insulated switchgear 20, thereby reducing the impact on the solid-sealed pole 21 during the closing and opening process.

[0037] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A gas-insulated switchgear circuit breaker with a built-in corrugated pipe, characterized in that, include An aluminum plate (10) is provided with a plurality of first mounting holes (11) and a plurality of second mounting holes (12); Gas box (20), the gas box (20) is installed on the first side (100) of the aluminum plate (10) and forms a closed space with the aluminum plate (10), and a plurality of solid-sealing poles (21) are provided in the closed space; An operating mechanism (30) is installed on the second side (200) of the aluminum plate (10), and the operating mechanism (30) drives the moving contact in the solidified pole (21); A bellows (40) is located entirely inside the air box (20) and is sealed at the first mounting hole (11). A transmission rod (41) is connected to one end of the bellows (40). The transmission rod (41) is connected to the operating mechanism (30) to drive the moving contact in the solid-sealed pole (21) through the bellows (40).

2. The bellows-embedded gas-insulated switchgear circuit breaker according to claim 1, characterized in that, The edge of the air box (20) is sealed to the edge of the aluminum plate (10), and the first mounting hole (11) and the second mounting hole (12) are sealed to form the sealed space.

3. A corrugated pipe-embedded gas-insulated switchgear circuit breaker according to claim 2, characterized in that, The aluminum plate (10) has a groove (101) on its edge, and the air box (20) has a protrusion (201) on its edge. A sealing ring (50) is provided in the groove (101). After the protrusion (201) is embedded in the groove (101), the aluminum plate (10) and the air box (20) are sealed together.

4. A corrugated pipe-embedded gas-insulated switchgear circuit breaker according to claim 1, characterized in that, A sealing plate (60) is provided on the second side (200) of the aluminum plate (10). The sealing plate (60) is installed at the first mounting hole (11) to seal the corrugated pipe (40).

5. A corrugated pipe-embedded gas-insulated switchgear circuit breaker according to claim 4, characterized in that, The sealing plate (60) is a circular plate structure, and the sealing plate (60) is coaxially arranged with the first mounting hole (11).

6. A corrugated pipe-embedded gas-insulated switchgear circuit breaker according to claim 1, characterized in that, The transmission rod (41) extends out of the first mounting hole (11) and is connected to the operating mechanism (30).

7. A corrugated pipe-embedded gas-insulated switchgear circuit breaker according to claim 1, characterized in that, A sealing screw (70) is provided in the second mounting hole (12), and the solid sealing pole (21) is connected to the aluminum plate (10) through the sealing screw (70).

8. A corrugated pipe-embedded gas-insulated switchgear circuit breaker according to claim 1, characterized in that, A housing (80) is mounted on the second side (200) of the aluminum plate (10), and the housing (80) positions the operating mechanism (30).

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