Integrated vacuum circuit breaker

Abstract

An integrated vacuum circuit breaker, comprising: an insulating cylinder (100), in which a single-break vacuum arc-extinguishing chamber (110) is arranged, a static end portion of the single-break vacuum arc-extinguishing chamber being provided with a static end assembly, and a movable end portion of the single-break vacuum arc-extinguishing chamber being provided with a movable end assembly; an insulating cylinder mounting plate (200), which is connected to the insulating cylinder; a mechanism mounting plate (400); a support assembly, which is arranged between the insulating cylinder mounting plate (200) and the mechanism mounting plate; and a transmission structure, one end of the transmission structure passing through the mechanism mounting plate (400) so as to connect to an operating mechanism and be in sealed connection with the mechanism mounting plate (400), and the other end of the transmission structure being connected to the movable end assembly, wherein the operating mechanism drives the movable end assembly to move in an axial direction so as to push a movable conductive rod to come into contact with a static conductive rod in the single-break vacuum arc-extinguishing chamber to perform a closing action, or to pull the movable conductive rod to separate from the static conductive rod to perform an opening action. The present invention has the beneficial effects whereby integrated assembly can be realized, and the integrated vacuum circuit breaker can be directly mounted in a GIS after being pre-assembled, thereby reducing the installation time and the labor cost.

Description

An integrated vacuum circuit breaker Technical Field

[0001] The present invention relates to the technical field related to circuit breakers, and in particular to an integrated vacuum circuit breaker. Background Art

[0002] Most of the medium and high voltage gas insulated switchgear widely used in power systems still use sulfur hexafluoride gas as the insulating medium. Sulfur hexafluoride basically does not decompose naturally in the atmosphere, which contributes to the aggravation of global warming. Vigorously promoting fluorine-free and environmentally friendly replacements for power equipment and using energy-saving, efficient, green and environmentally friendly power equipment are strong supports for achieving the goals of carbon peak and carbon neutrality. At present, the existing technology uses 72.5kV voltage level high-pressure environmentally friendly gas GIS as an insulating medium, which can achieve the goals of energy saving, high efficiency, and green environmental protection. However, the vacuum circuit breakers used in the existing 72.5kV GIS are mostly SF6 arc extinguishing or double-break series arc extinguishing. SF6 arc extinguishing has the problem of not being able to be frequently opened and closed in a short period of time; double-break series arc extinguishing has the risk of opening failure caused by uneven voltage. In addition, the installation method of the vacuum circuit breakers used in the existing GIS is split installation, and the installation process is cumbersome.

[0003] Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an integrated vacuum circuit breaker that utilizes a single-break vacuum arc extinguishing method. This allows for multiple interruptions in a short period of time with stable interruption. Furthermore, the integrated assembly allows for direct installation within the GIS after pre-assembly, reducing installation time and labor costs.

[0005] An integrated vacuum circuit breaker according to an embodiment of the present invention includes:

[0006] An insulating cylinder, wherein a single-break vacuum interrupter is provided, the single-break vacuum interrupter having a static end and a dynamic end, the static end being provided with a static end assembly, the static end assembly being used to fix the single-break vacuum interrupter at one end of the insulating cylinder and to draw current, and the dynamic end being provided with a dynamic end assembly;

[0007] an insulating cylinder mounting plate, one side of which is connected to an end of the insulating cylinder close to the movable end assembly;

[0008] a support assembly, one end of which is connected to the other side of the insulating cylinder mounting plate;

[0009] A mechanism mounting plate, one side of which is connected to the other end of the support assembly, and the other side of the mechanism mounting plate is fixed to the GIS housing flange;

[0010] The transmission structure is located between the mechanism mounting plate and the insulating tube mounting plate. One end of the transmission structure passes through the mechanism mounting plate to be connected to the operating mechanism, and the transmission structure is sealed to the mechanism mounting plate. The other end of the transmission structure passes through the insulating tube mounting plate to be connected to the moving end assembly. The transmission structure is used to drive the operating mechanism to perform axial movement, thereby driving the moving end assembly to perform axial movement, and then pushing the moving conductive rod and the static conductive rod inside the single-break vacuum interrupter to contact to perform a closing action, or pulling the moving conductive rod and the static conductive rod inside the single-break vacuum interrupter to separate to perform an opening action.

[0011] The integrated vacuum circuit breaker according to the embodiment of the present invention has at least the following beneficial effects:

[0012] The integrated vacuum circuit breaker of the embodiment of the present invention adopts a single-break vacuum arc extinguishing method. The operating mechanism drives the transmission structure to perform axial movement, thereby driving the moving end assembly to perform axial movement, and then pushing the moving conductive rod and the static conductive rod inside the single-break vacuum arc extinguishing chamber to contact to perform a closing action, or pulling the moving conductive rod and the static conductive rod inside the single-break vacuum arc extinguishing chamber to separate to perform an opening action. It can achieve multiple breaking operations in a short period of time, and the breaking is stable. The circuit breaker can be assembled in an integrated manner through the insulating tube mounting plate, the support assembly, and the mechanism mounting plate. During installation, the assembled integrated vacuum circuit breaker is directly pushed into the GIS housing and fixed to the GIS housing flange through the other side of the mechanism mounting plate. There is no need to install parts inside the GIS housing, which can reduce the time and labor costs during installation.

[0013] According to some embodiments of the present invention, the transmission structure includes:

[0014] a bellows, located between the mechanism mounting plate and the insulating tube mounting plate, one end of the bellows passing through the mechanism mounting plate to be connected to the operating mechanism, and the other end passing through the insulating tube mounting plate to be connected to the movable end assembly, the bellows being used to be driven by the operating mechanism to perform axial movement, thereby driving the movable end assembly to perform axial movement, and further pushing the movable conductive rod and the static conductive rod inside the single-break vacuum interrupter to contact to perform a closing action, or pulling the movable conductive rod and the static conductive rod inside the single-break vacuum interrupter to separate to perform an opening action;

[0015] A sealing ring is provided between the bellows and the mechanism mounting plate.

[0016] According to some embodiments of the present invention, the moving end assembly includes:

[0017] A moving end conductor is arranged in the insulating cylinder;

[0018] a flexible connector, one end of which is connected to the movable end conductor and the other end of which is connected to the movable conductive rod;

[0019] An insulating pull rod is provided in the insulating cylinder, one end of the insulating pull rod passes through the soft connector and is connected to the dynamic conductive rod, and the other end of the insulating pull rod is connected to the other end of the transmission structure.

[0020] According to some embodiments of the present invention, a heat dissipation opening is provided on a side wall of the insulating cylinder, and the heat dissipation opening is located above the insulating pull rod.

[0021] According to some embodiments of the present invention, the static end assembly includes:

[0022] A static end mounting plate, disposed outside the insulating cylinder and connected to the static end portion;

[0023] The static end conductor is arranged on the static end mounting plate and connected to the static conducting rod.

[0024] According to some embodiments of the present invention, the support assembly includes a plurality of support columns, one end of each of the support columns is connected to the insulation cylinder mounting plate, and the other end is connected to the mechanism mounting plate.

[0025] According to some embodiments of the present invention, the plurality of support columns include a plurality of upper support columns and a plurality of lower support columns, the plurality of upper support columns are equally spaced between the insulating tube mounting plate and the mechanism mounting plate and are all located above the transmission structure, and the plurality of lower support columns are equally spaced between the insulating tube mounting plate and the mechanism mounting plate and are all located below the transmission structure.

[0026] According to some embodiments of the present invention, the number of the upper support columns and the number of the lower support columns are the same.

[0027] According to some embodiments of the present invention, a plurality of bolts are provided on the other side of the mechanism mounting plate, and the plurality of bolts are fixed to the GIS housing flange.

[0028] According to some embodiments of the present invention, the plurality of bolts are distributed in a circle, the center of the circle is the center of the mechanism mounting plate, and the intervals between two adjacent bolts are equal.

[0029] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0031] FIG1 is a schematic structural diagram of an integrated vacuum circuit breaker according to an embodiment of the present invention;

[0032] FIG2 is a perspective view of an integrated vacuum circuit breaker according to an embodiment of the present invention;

[0033] FIG3 is a top view of an integrated vacuum circuit breaker according to an embodiment of the present invention;

[0034] FIG4 is a front view of an integrated vacuum circuit breaker according to an embodiment of the present invention.

[0035] Reference numerals: Insulation cylinder 100 , single-break vacuum interrupter 110 , moving end conductor 121 , flexible connector 122 , insulation pull rod 123 , static end mounting plate 131 , static end conductor 132 , heat dissipation installation port 101 ; Insulation cylinder mounting plate 200 ; Upper support column 310 , lower support column 320 ; Mechanism mounting plate 400 ; Bellows 500 . DETAILED DESCRIPTION

[0036] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0037] In the description of the present invention, if there is a description of first, second, etc., it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] The integrated vacuum circuit breaker according to the embodiment of the present invention will be clearly and completely described below with reference to FIG. 1 to FIG. 4 . Obviously, the embodiment described below is only a part of the embodiment of the present invention, not all the embodiments.

[0041] The integrated vacuum circuit breaker according to the embodiment of the present invention includes an insulating cylinder 100 , an insulating cylinder mounting plate 200 , a support assembly, a mechanism mounting plate 400 , and a transmission structure.

[0042] An insulating cylinder 100 is provided with a single-break vacuum interrupter 110. The single-break vacuum interrupter 110 has a static end and a dynamic end. The static end is provided with a static end assembly for fixing the single-break vacuum interrupter 110 to one end of the insulating cylinder 100 and drawing current. The dynamic end is provided with a dynamic end assembly.

[0043] An insulation cylinder mounting plate 200, one side of which is connected to an end of the insulation cylinder 100 close to the movable end assembly;

[0044] a support assembly, one end of which is connected to the other side of the insulation cylinder mounting plate 200;

[0045] A mechanism mounting plate 400, one side of which is connected to the other end of the support assembly, and the other side of the mechanism mounting plate 400 is fixed to the GIS housing flange;

[0046] The transmission structure is located between the mechanism mounting plate 400 and the insulating tube mounting plate 200. One end of the transmission structure passes through the mechanism mounting plate 400 to be connected to the operating mechanism, and the transmission structure is sealed to the mechanism mounting plate 400. The other end of the transmission structure passes through the insulating tube mounting plate 200 to be connected to the moving end assembly. The transmission structure is used to drive the operating mechanism to perform axial movement, thereby driving the moving end assembly to perform axial movement, and then pushing the moving conductive rod and the static conductive rod inside the single-break vacuum interrupter 110 to contact to perform a closing action, or pulling the moving conductive rod and the static conductive rod inside the single-break vacuum interrupter 110 to separate to perform an opening action.

[0047] In some embodiments of the invention, referring to FIG. 1 , the static end assembly includes a static end mounting plate 131 and a static end conductor 132 .

[0048] The static end mounting plate 131 is provided outside the insulating cylinder 100 and connected to the static end portion;

[0049] The static end conductor 132 is disposed on the static end mounting plate 131 and connected to the static conductive rod.

[0050] The static end mounting plate 131 secures the single-break vacuum interrupter 110 to one end of the insulating tube 100. The static end conductor 132 connects to the static conductive rod for current extraction. It should be noted that the operating principle of the static end assembly is well known to those skilled in the art and will not be further elaborated here.

[0051] In some embodiments of the invention, referring to FIG. 1 , the movable end assembly includes a movable end conductor 121 , a flexible connecting body 122 and an insulating pull rod 123 .

[0052] The moving end conductor 121 is provided in the insulating tube 100;

[0053] A flexible connector 122, one end of which is connected to the movable conductor 121, and the other end of which is connected to the movable conductive rod;

[0054] The insulating pull rod 123 is disposed in the insulating cylinder 100 . One end of the insulating pull rod 123 passes through the flexible connector 122 and is connected to the movable conductive rod, while the other end is connected to the other end of the transmission structure.

[0055] The soft connector 122 can lead the current of the moving conductive rod to the moving end conductor 121. The insulating pull rod 123 moves axially through the transmission effect of the transmission structure and then pushes the moving conductive rod and the static conductive rod inside the single-break vacuum interrupter 110 to contact to perform a closing action, or pulls the moving conductive rod and the static conductive rod inside the single-break vacuum interrupter 110 to separate and perform an opening action. The single-break vacuum arc extinguishing method is adopted to achieve multiple breaking in a short time, and the breaking is stable.

[0056] It should be noted that the working principle of the moving end assembly is an existing technology known to those skilled in the art and will not be described in detail here.

[0057] The end of the insulation cylinder 100 close to the movable end assembly is fixed to the insulation cylinder mounting plate 200 by means of an insert and bolts. The insulation cylinder mounting plate 200 is mounted on the mechanism mounting plate 400 by means of a support assembly.

[0058] The support assembly, positioned between the insulation cylinder mounting plate 200 and the mechanism mounting plate 400, not only serves as a connector between the two, ensuring a secure connection and preventing breakage, but also provides space for the installation and movement of the transmission mechanism. The shape, material, and connection method of the support assembly to the insulation cylinder mounting plate 200 and the mechanism mounting plate 400 are not specifically defined; they are sufficient to achieve the supporting connection.

[0059] The circuit breaker can be assembled in an integrated manner through the insulating tube mounting plate 200, the support assembly, and the mechanism mounting plate 400. During installation, the assembled integrated vacuum circuit breaker is directly pushed into the GIS shell and fixed to the GIS shell flange through the other side of the mechanism mounting plate 400. There is no need to install parts inside the GIS shell, which can reduce the time and labor costs during installation.

[0060] According to the embodiment of the present invention, the integrated vacuum circuit breaker of the embodiment of the present invention adopts a single-break vacuum arc extinguishing method, and drives the transmission structure to move axially through the operating mechanism, thereby driving the moving end assembly to move axially, and then pushing the moving conductive rod and the static conductive rod inside the single-break vacuum arc extinguishing chamber 110 to contact to perform a closing action, or pulling the moving conductive rod and the static conductive rod inside the single-break vacuum arc extinguishing chamber 110 to separate to perform an opening action, which can achieve multiple breaking in a short period of time, and the breaking is stable. The circuit breaker can be assembled in an integrated manner through the insulating tube mounting plate 200, the support assembly, and the mechanism mounting plate 400. During installation, the assembled integrated vacuum circuit breaker is directly pushed into the GIS shell and fixed to the GIS shell flange through the other side of the mechanism mounting plate 400. There is no need to install parts inside the GIS shell, which can reduce the time cost and labor cost during installation.

[0061] In some embodiments of the invention, referring to FIG. 1 to FIG. 3 , the transmission structure includes a bellows 500 and a sealing ring.

[0062] The bellows 500 is located between the mechanism mounting plate 400 and the insulating tube mounting plate 200. One end of the bellows 500 passes through the mechanism mounting plate 400 to connect to the operating mechanism, and the other end passes through the insulating tube mounting plate 200 to connect to the movable end assembly. The bellows 500 is used to be driven by the operating mechanism to perform axial movement, thereby driving the movable end assembly to perform axial movement, thereby pushing the movable conductive rod and the static conductive rod inside the single-break vacuum interrupter 110 into contact to perform a closing action, or pulling the movable conductive rod and the static conductive rod inside the single-break vacuum interrupter 110 into separation to perform an opening action;

[0063] The sealing ring is provided between the bellows 500 and the mechanism mounting plate 400 .

[0064] The bellows 500 is a tubular elastic sensitive element formed by folding corrugated sheets connected along the folding and stretching direction. The bellows 500 has a thin wall and high sensitivity. Its open end is fixed, the sealed end is free, and an auxiliary coil spring or reed is used to increase its elasticity. During operation, under the action of internal pressure, it extends along the length of the tube, causing the movable end to produce a displacement that is proportional to the pressure. The operating mechanism drives the bellows 500 to move axially, thereby driving the movable end assembly to move axially, thereby pushing the movable conductive rod and the static conductive rod inside the single-break vacuum interrupter 110 into contact to close the circuit breaker, or pulling the movable conductive rod and the static conductive rod inside the single-break vacuum interrupter 110 apart to open the circuit breaker. Using a single-break vacuum interrupter method, multiple interruptions can be achieved in a short period of time, and the interruption is stable.

[0065] The bellows 500 is mounted on the mechanism mounting plate 400 via a sealing ring so that the GIS gas will not leak out when the operating mechanism drives the bellows 500 to move axially.

[0066] It should be noted that the structure and principles of bellows 500 are well-known to those skilled in the art and will not be elaborated upon here. The specific model and size of bellows 500 will also need to be determined based on actual conditions and are not specifically limited here. Furthermore, the size, shape, and material of the sealing ring are not specifically limited here and may be selected based on actual conditions.

[0067] In some embodiments of the present invention, referring to Figures 2 and 3 , a heat dissipation opening 101 is provided on the side wall of the insulating cylinder 100 and is located above the insulating rod 123. This location facilitates the installation of internal components and the extraction of the moving end conductor 121, while also providing heat dissipation.

[0068] It should be noted that the specific size and shape of the heat dissipation opening 101 are not specifically limited here, as long as it can facilitate the installation of the internal structure and the lead-out of the moving end conductor 121 and achieve a heat dissipation effect.

[0069] In some embodiments of the present invention, referring to Figures 1 to 3 , the support assembly includes multiple support columns, each of which is connected to the insulation cylinder mounting plate 200 at one end and to the mechanism mounting plate 400 at the other end. The support assembly, positioned between the insulation cylinder mounting plate 200 and the mechanism mounting plate 400, not only serves as a connector between the insulation cylinder mounting plate 200 and the mechanism mounting plate 400 but also provides space for the installation and movement of the transmission mechanism. The multiple support columns ensure a more secure connection between the insulation cylinder mounting plate 200 and the mechanism mounting plate 400, preventing them from breaking easily.

[0070] In some embodiments of the present invention, referring to Figures 1 and 2 , the plurality of support columns include a plurality of upper support columns 310 and a plurality of lower support columns 320. The plurality of upper support columns 310 are evenly spaced between the insulation cylinder mounting plate 200 and the mechanism mounting plate 400 and are all located above the transmission structure. The plurality of lower support columns 320 are evenly spaced between the insulation cylinder mounting plate 200 and the mechanism mounting plate 400 and are all located below the transmission structure. Because the integrated vacuum circuit breaker in this embodiment of the present invention is mounted on the GIS housing via the other side of the mechanism mounting plate 400, the insulation cylinder mounting plate 200 and the insulation cylinder 100 are connected to the mechanism mounting plate 400 entirely by the plurality of support columns. Multiple upper support columns 310 are evenly spaced between the insulation tube mounting plate 200 and the mechanism mounting plate 400 and are all located above the transmission structure. Multiple lower support columns 320 are evenly spaced between the insulation tube mounting plate 200 and the mechanism mounting plate 400 and are all located below the transmission structure. This can make the force between the insulation tube mounting plate 200 and the mechanism mounting plate 400 more uniform, and the insulation tube mounting plate 200 and the insulation tube 100 will not be easily disconnected from the mechanism mounting plate 400.

[0071] In some embodiments, the plurality of support columns may be arranged around the edges of the insulation cylinder mounting plate 200 and the mechanism mounting plate 400 to form a rectangular frame structure, or may be arranged in a non-specific shape and evenly distributed between the insulation cylinder mounting plate 200 and the mechanism mounting plate 400. This can also ensure more uniform force distribution between the insulation cylinder mounting plate 200 and the mechanism mounting plate 400, and prevent the insulation cylinder mounting plate 200 and the insulation cylinder 100 from easily disconnecting from the mechanism mounting plate 400. The location of the plurality of support columns should not be considered a limitation of the present invention.

[0072] In some embodiments of the present invention, referring to Figures 1 and 2 , the number of upper support posts 310 and lower support posts 320 is the same. Having the same number of upper support posts 310 and lower support posts 320 can ensure more uniform force distribution between the insulation cylinder mounting plate 200 and the mechanism mounting plate 400, preventing the insulation cylinder mounting plate 200 and the insulation cylinder 100 from easily disconnecting from the mechanism mounting plate 400.

[0073] It should be noted that the specific number of upper support columns 310 and lower support columns 320 can be set according to actual circumstances and is not specifically limited here. Furthermore, the number of upper support columns 310 and lower support columns 320 can also vary, as long as the force between the insulation cylinder mounting plate 200 and the mechanism mounting plate 400 is relatively uniform and the insulation cylinder mounting plate 200 and the insulation cylinder 100 are not easily disconnected from the mechanism mounting plate 400. This is not to be considered a limitation of the present invention.

[0074] In some embodiments of the present invention, referring to Figure 4 , multiple bolts are provided on the other side of the mechanism mounting plate 400, securing the GIS housing flange. The insulating cylinder mounting plate 200, support assembly, and mechanism mounting plate 400 enable integrated assembly of the circuit breaker. During installation, the assembled integrated vacuum circuit breaker is simply pushed into the GIS housing and secured to the GIS housing flange using the multiple bolts on the other side of the mechanism mounting plate 400. This eliminates the need to install components inside the GIS housing, reducing installation time and labor costs. The multiple bolts ensure a more secure mounting of the integrated vacuum circuit breaker to the GIS housing, preventing it from falling.

[0075] It should be noted that the structure for fixing the other side of the mechanism mounting plate 400 to the GIS shell can be changed according to actual conditions. As long as the assembled integrated vacuum circuit breaker can be directly pushed into the GIS shell so that the other side of the mechanism mounting plate 400 can be fixed to the GIS shell, it cannot be regarded as a limitation of the present invention.

[0076] In some embodiments of the present invention, referring to Figure 4 , multiple bolts are arranged in a circular pattern, centered at the center of the mechanism mounting plate 400, with adjacent bolts spaced equidistant from each other. This circular pattern, centered at the center of the mechanism mounting plate 400, ensures that the integrated vacuum circuit breaker is more stably mounted on the GIS housing, preventing it from falling.

[0077] It should be noted that the arrangement positions of the multiple bolts can be changed and should not be regarded as a limitation of the present invention.

[0078] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. An integrated vacuum circuit breaker, characterized in that: include: An insulating cylinder (100) is provided with a single-break vacuum interrupter (110), wherein the single-break vacuum interrupter (110) has a static end and a dynamic end, a static end assembly is provided at the static end, the static end assembly is used to fix the single-break vacuum interrupter (110) to one end of the insulating cylinder (100) and to draw current, and a dynamic end assembly is provided at the dynamic end; An insulating cylinder mounting plate (200), one side of which is connected to an end of the insulating cylinder (100) close to the movable end assembly; A support assembly, one end of which is connected to the other side of the insulating cylinder mounting plate (200); A mechanism mounting plate (400), one side of which is connected to the other end of the support assembly, and the other side of the mechanism mounting plate (400) is fixed to the GIS housing flange; A transmission structure is located between the mechanism mounting plate (400) and the insulating tube mounting plate (200), one end of the transmission structure passes through the mechanism mounting plate (400) to be connected to the operating mechanism, and the transmission structure is sealed to the mechanism mounting plate (400), and the other end of the transmission structure passes through the insulating tube mounting plate (200) to be connected to the moving end assembly, the transmission structure is used to drive the operating mechanism to perform axial movement, thereby driving the moving end assembly to perform axial movement, and then pushing the moving conductive rod and the static conductive rod inside the single-break vacuum interrupter (110) to contact to perform a closing action, or pulling the moving conductive rod and the static conductive rod inside the single-break vacuum interrupter (110) to separate to perform an opening action.

2. The integrated vacuum circuit breaker according to claim 1, characterized in that: The transmission structure comprises: A bellows (500) is located between the mechanism mounting plate (400) and the insulating tube mounting plate (200); one end of the bellows (500) passes through the mechanism mounting plate (400) to be connected to the operating mechanism, and the other end passes through the insulating tube mounting plate (200) to be connected to the moving end assembly; the bellows (500) is used to be driven by the operating mechanism to perform axial movement, thereby driving the moving end assembly to perform axial movement, thereby pushing the moving conductive rod and the static conductive rod inside the single-break vacuum interrupter (110) to contact to perform a closing action, or pulling the moving conductive rod and the static conductive rod inside the single-break vacuum interrupter (110) to separate to perform an opening action; A sealing ring is provided between the bellows (500) and the mechanism mounting plate (400).

3. The integrated vacuum circuit breaker according to claim 1, characterized in that: The moving end assembly comprises: A moving end conductor (121) is arranged in the insulating cylinder (100); A flexible connector (122), one end of which is connected to the movable end conductor (121), and the other end of which is connected to the movable conductive rod; An insulating pull rod (123) is disposed in the insulating cylinder (100), one end of the insulating pull rod (123) passes through the soft connection body (122) to be connected to the moving conductive rod, and the other end of the insulating pull rod is connected to the other end of the transmission structure.

4. The integrated vacuum circuit breaker according to claim 3, characterized in that: A heat dissipation installation opening (101) is provided on the side wall of the insulating cylinder (100), and the heat dissipation installation opening (101) is located above the insulating pull rod (123).

5. The integrated vacuum circuit breaker according to claim 1, characterized in that: The static end assembly comprises: A static end mounting plate (131), arranged outside the insulating cylinder (100) and connected to the static end portion; The static end conductor (132) is arranged on the static end mounting plate (131) and connected to the static conductive rod.

6. The integrated vacuum circuit breaker according to claim 1, characterized in that: The support assembly comprises a plurality of support columns, one end of each of the support columns is connected to the insulation cylinder mounting plate (200), and the other end is connected to the mechanism mounting plate (400).

7. The integrated vacuum circuit breaker according to claim 6, characterized in that: The plurality of support columns include a plurality of upper support columns (310) and a plurality of lower support columns (320). The plurality of upper support columns (310) are arranged at equal intervals between the insulating tube mounting plate (200) and the mechanism mounting plate (400) and are all located above the transmission structure. The plurality of lower support columns (320) are arranged at equal intervals between the insulating tube mounting plate (200) and the mechanism mounting plate (400) and are all located below the transmission structure.

8. The integrated vacuum circuit breaker according to claim 7, characterized in that: The number of the upper support columns (310) and the number of the lower support columns (320) are the same.

9. The integrated vacuum circuit breaker according to claim 1, characterized in that: The other side of the mechanism mounting plate (400) is provided with a plurality of bolts, and the plurality of bolts are fixed to the GIS housing flange.

10. The integrated vacuum circuit breaker according to claim 9, characterized in that: The plurality of bolts are distributed in a circle shape, the center of the circle is the center of the mechanism mounting plate (400), and the intervals between two adjacent bolts are equal.

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