reactive power compensation device

Abstract

This application discloses a reactive power compensation device, relating to the field of reactive power compensation technology. The device includes a cabinet, a static var generator (SVA), and a locking assembly. The cabinet has a mounting cavity and a mounting port connecting to the cavity. The locking assembly is located in the mounting cavity and includes a conductive element and a pushing structure. The conductive element is used for electrical connection to the power grid, and the pushing structure is retractable. The SVA includes a generator body and a connecting element. The generator body is located in the mounting cavity, and the connecting element is electrically connected to the generator body. The connecting element and the conductive element are in contact for electrical connection. The pushing structure can push the connecting element to separate it from the conductive element. This technical solution improves the ease of maintenance of the SVA in the reactive power compensation device.

Description

Technical Field

[0001] This application relates to the field of reactive power compensation technology, and in particular to a reactive power compensation device. Background Technology

[0002] To compensate for reactive power in various power consumption scenarios, reactive power compensation devices are typically installed. The static var generator (SVA) and other components of the reactive power compensation device are all installed in a cabinet. The SVA needs to be connected to the power grid via wiring within the cabinet. When the SVA malfunctions or requires maintenance, the technician must manually disconnect the wiring to de-energize and remove the generator. Installing the SVA also requires separate wiring and securing of the generator, making installation and removal inconvenient. Summary of the Invention

[0003] The main purpose of this application is to propose a reactive power compensation device, which aims to improve the ease of maintenance of the static var generator in the reactive power compensation device.

[0004] To achieve the above objectives, the reactive power compensation device proposed in this application includes:

[0005] A server rack, wherein the server rack is provided with a mounting cavity and a mounting port communicating with the mounting cavity;

[0006] A locking assembly, disposed in the mounting cavity, includes a conductive element and a pushing structure, the conductive element being used for electrical connection to the power grid; and

[0007] A static var generator, comprising a generator body and a power connection component, wherein the power connection component is electrically connected to the generator body;

[0008] The generator body is located in the mounting cavity. The electrical contact and the conductive element are in contact and electrically connected. The push structure is telescopic and can push the electrical contact to separate the electrical contact and the conductive element.

[0009] The technical solution of this application includes a conductive component for connecting to the power grid installed in the cabinet, and a connecting component electrically connected to the generator body on the static var generator. When the static var generator is installed in the mounting cavity of the cabinet, the connecting component and the conductive component on the locking assembly contact each other to form an electrical connection, thereby electrically connecting the generator body of the static var generator to the conductive component and realizing the power connection of the static var generator. In case of static var generator failure or maintenance, the pushing structure can push open the connecting component to separate it from the conductive component, thus de-energizing the static var generator. This eliminates the need for manual disconnection, improving the convenience of static var generator maintenance and reducing the risk of electric shock during disassembly and assembly.

[0010] In one embodiment, the static var generator further includes a latching-release assembly connected to the generator body, the latching-release assembly having the power contact on it, and the latching-release assembly being detachably connected to the locking assembly.

[0011] By using the above method, the static var generator (SVR) is locked in the cabinet through the connection of the latching and release components. This improves the installation stability of the SVR and prevents it from shifting within the cabinet. Furthermore, by placing the power connection on the latching and release components, the SVR can be powered on simultaneously with the connection of the latching and release components. When it is necessary to remove the SVR, simply separating the latching and release components releases the lock on the SVR and simultaneously de-energizes it, making the installation and removal of the SVR quite convenient.

[0012] In one embodiment, the latch-release assembly includes a latch-release structure and a drive structure connected to each other, the latch-release structure and the drive structure being movably disposed relative to the generator body, and the electrical contact being disposed on the latch-release structure;

[0013] The generator body and the locking / releasing structure are located in the mounting cavity, and the drive structure is exposed in the mounting port. The drive structure is configured to drive the locking / releasing structure to lock or unlock the locking / releasing structure with the latch assembly.

[0014] By adopting the above solution, when disassembling and assembling the static var generator, the locking and unlocking mechanism and the latching assembly can be locked or unlocked directly from the outside of the cabinet by operating the drive structure. The drive structure can also be used as a handle to facilitate pulling out the static var generator, thereby improving the ease of disassembly and assembly of the static var generator.

[0015] In one embodiment, the locking assembly includes a connecting plate, and the side of the connecting plate opposite to the mounting port is provided with a locking structure, the conductive element, and the pushing structure;

[0016] The locking and releasing structure includes an extension rod, the electrical connector is disposed on the extension rod, and the driving structure is used to drive the extension rod to move to the position of the locking structure, or to move it to a position that is misaligned with the connecting plate;

[0017] The extension rod is disposed opposite to the pushing end of the pushing structure and can be locked by the locking structure. The pushing structure is configured to push the extension rod away from the locking structure, thereby separating the electrical contact from the conductive component.

[0018] Using the above scheme, when it is necessary to lock the static var generator (SVR) in the cabinet, the extension rod on the latching assembly is moved to the back of the connecting plate by the drive mechanism and locked by the locking mechanism. At this time, in the direction in which the SVR moves out of the mounting cavity, the extension rod is blocked and limited by the connecting plate, thus preventing the SVR from being removed from the mounting cavity. When it is necessary to remove the SVR, the drive mechanism drives the extension rod to separate from the locking mechanism and moves the extension rod to a position misaligned with the connecting plate. The extension rod is no longer blocked by the connecting plate, allowing the SVR to be removed from the mounting cavity. This configuration makes locking and unlocking the SVR relatively convenient, and the stability is high when locked.

[0019] In one embodiment, the locking structure includes a connecting groove, the conductive element is disposed on the groove wall of the connecting groove, at least a portion of the structure of the extension rod can be embedded in the connecting groove, and the driving structure is further used to drive the extension rod closer to or away from the generator body so that the extension rod enters and exits the connecting groove.

[0020] The pushing structure is located in the connecting groove or on the outer side of the end of the connecting groove. When the pushing structure extends, it can push the extension rod outward of the connecting groove to separate the electrical contact and the conductive part.

[0021] Using the above solution, the extension rod can be embedded in the connecting groove to lock onto the connecting plate, which helps to improve the locking strength, reduce the risk of the extension rod falling out of the locked state or falling out of the connecting plate due to misoperation, ensure stable connection of the electrical and conductive parts, and ensure that the static var generator is stably installed in the cabinet.

[0022] In one embodiment, the connecting plate is provided with a first clearance hole and a second clearance hole that penetrate both sides of the surface. The second clearance hole and the locking structure are arranged circumferentially along the first clearance hole, and the second clearance hole communicates with the first clearance hole.

[0023] The locking and releasing structure further includes a central disk, and the extension rod extends from the edge of the central disk in a direction away from the central disk. The central disk passes through the first clearance hole, and the extension rod can pass through the second clearance hole. The locking and releasing structure can rotate relative to the connecting disk to move the extension rod to the second clearance hole or to the connecting groove.

[0024] Using the above scheme, with the static var generator locked in the cabinet, the central disc of the latching assembly passes through the first clearance hole on the connecting plate. This allows the connecting plate to radially limit the latching structure within the first clearance hole, preventing the static var generator from shifting and improving installation stability. When it is necessary to disassemble or assemble the static var generator, the driving structure rotates the latching structure, causing the extension rod to move to the position of the second clearance hole to offset it from the connecting plate. This allows the static var generator to freely enter and exit the mounting cavity. Alternatively, the extension rod can be moved to the position of the connecting groove so that it can enter the limiting groove and be locked, making operation convenient.

[0025] In one embodiment, the connecting plate is provided with a guide wedge, which is located between the second clearance hole and the connecting groove, and the thickness of the guide wedge increases from the second clearance hole toward the connecting groove.

[0026] By adopting the above solution and setting a guide wedge, the risk of the limiting rod coming out of the connecting groove and moving to the second clearance hole can be reduced when the extension rod is limited to the connecting groove. When it is necessary to remove the static var generator, the extension rod can automatically slide along the guide wedge to the second clearance hole, thereby improving the convenience of removing the static var generator.

[0027] In one embodiment, the locking and releasing structure is provided with a plurality of extension rods, at least one of the extension rods is provided with the electrical contact, the plurality of extension rods are arranged circumferentially along the central disk, the connecting disk is provided with a plurality of second clearance holes and a plurality of connecting grooves, the plurality of second clearance holes and the plurality of connecting grooves are staggered along the circumferential direction of the connecting disk.

[0028] By adopting the above solution, the connection strength between the latching and release components and the locking components can be improved, thereby enhancing the stability of the static var generator installed in the cabinet.

[0029] In one embodiment, the drive structure includes a handle and a connecting rod connected together, the handle being exposed in the mounting port, and the locking / releasing structure being located on the side of the generator body opposite to the handle;

[0030] The connecting rod passes through the generator body and is connected to the locking and releasing structure. The handle and the connecting rod can rotate relative to the generator body.

[0031] Using the above method, the extension rod can be rotated to the connecting groove or to a position misaligned with the connecting plate by directly rotating the handle to drive the locking and releasing structure. The extension rod can be moved through the connecting plate by moving the handle along the length of the connecting rod, for example, by driving the extension rod through the second clearance hole. There is no need to set up a complex transmission structure between the driving structure and the locking and releasing structure, and the structure is simple.

[0032] In one embodiment, the handle and the connecting rod are movable relative to the generator body along the length direction of the connecting rod;

[0033] The drive structure further includes a first elastic element, which is sandwiched between the handle and the generator body, and applies an elastic force to the handle away from the generator body.

[0034] Using the above method, with the static var generator locked in the cabinet, the first elastic element applies an elastic force to the handle toward the outside of the mounting cavity, thereby tightening the locking structure and ensuring that the extension rod of the locking structure is embedded in the connecting groove. The extension rod is not easy to come out of the connecting groove, thus improving the connection strength and stability.

[0035] In one embodiment, the drive structure further includes a connecting cylinder and a second elastic element. The connecting cylinder has a receiving cavity and a first communicating hole and a second communicating hole communicating with the receiving cavity. The first communicating hole is located at one end of the connecting cylinder facing the generator body. The connecting rod passes through the first communicating hole and is inserted into the receiving cavity.

[0036] The second connecting hole is provided on the side wall of the connecting cylinder and extends along the length of the connecting cylinder, and the handle passes through the second connecting hole;

[0037] The outer wall of the connecting cylinder has a protruding limiting part, which is located on the side of the handle facing the generator body. The second elastic element is sleeved on the outside of the connecting cylinder and sandwiched between the handle and the limiting part.

[0038] By using the above method, the connecting tube can protect the connecting rod, and at the same time, the second elastic element can also apply an elastic force to the handle towards the outside of the mounting cavity, increasing the tension of the handle to tighten the locking and releasing structure, ensuring that the extension rod of the locking and releasing structure is embedded in the connecting groove, and improving the connection strength and stability.

[0039] In one embodiment, the driving structure further includes a pusher, which is threadedly connected to the end of the connecting cylinder away from the first communicating hole;

[0040] One end of the pusher is inserted into the accommodating cavity and abuts against the handle. When the pusher rotates, it drives the connecting cylinder to move closer to or away from the generator body.

[0041] Using the above method, when it is necessary to remove the extension rod from the connecting groove, the pusher can first drive the connecting cylinder away from the generator body. With this configuration, when the handle is pressed against the generator body to push the extension rod out of the connecting groove, the handle, connecting cylinder and second elastic element can be pressed against the generator body together without having to overcome the resistance of the second elastic element, thus improving the ease of disassembly and assembly.

[0042] In one embodiment, the locking assembly further includes a connecting terminal located outside the connecting groove and electrically connected to the conductive element. The connecting terminal is used to electrically connect to the power grid so that the conductive element is electrically connected to the power grid.

[0043] In this configuration, the conductive components can be electrically connected to the power grid via connection terminals, which are located on the outside of the connection slot for easy wiring.

[0044] In one embodiment, the locking assembly further includes an insulating member that covers the opening of the connecting groove. One end of the insulating member is connected to the connecting disc, and the other end is movably disposed.

[0045] The insulating element is elastic, and the extension rod can move the insulating element in and out of the connecting groove.

[0046] Using the above method, when the extension rod is embedded in the connecting groove, the insulating component can limit and protect the extension rod, and can cut off the electric arc generated when the connecting and conductive components are connected and disconnected, thus playing an arc-extinguishing role.

[0047] In one embodiment, a limiting sleeve is provided in the generator body, and the driving structure passes through the limiting sleeve.

[0048] This setup allows for the use of a limiting sleeve to guide and limit the connecting rod, preventing the drive structure from skewing during movement along the length of the connecting rod and reducing the risk of the connecting rod bending.

[0049] In one embodiment, the pushing structure is configured as an electromagnet push rod structure.

[0050] Using the above method, the electromagnet push rod is easy to control and has a fast response speed, which can quickly separate the energized and conductive parts when a fault is detected or when power needs to be cut off.

[0051] In one embodiment, the reactive power compensation device further includes a fault detection module, which is located in the cabinet and is configured to issue a fault signal when a fault is detected in the static var generator.

[0052] By using the above method, the fault status of the static var generator can be quickly detected, so that when a fault occurs, the jacking structure can be controlled in time to push open the electrical connection to disconnect and isolate the power, thereby achieving rapid response and improving the degree of automation.

[0053] In one embodiment, the reactive power compensation device is provided with a plurality of the aforementioned static var generators.

[0054] This configuration enhances overall compensation capability and reliability, meeting the needs of high-capacity applications. Multiple static var generators can be connected in parallel, effectively distributing the compensation task in industrial environments with severe harmonics and frequent load fluctuations, preventing overload of a single device, and ensuring that the other parallel static var generators can continue to operate even if one of them fails.

[0055] In one embodiment, the cabinet is provided with a support rail, which extends from the mounting port to the inside of the mounting cavity, and the generator body is supported on the support rail.

[0056] This setup utilizes the support rails to define the installation position of the static var generator within the mounting cavity, and the support rails also support the static var generator, resulting in a reasonable overall structural arrangement. Furthermore, the static var generator can slide along the support rails to enter and exit the mounting cavity, improving the ease of assembly and disassembly.

[0057] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0058] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0059] Figure 1 A structural diagram of an embodiment of the reactive power compensation device provided in this application;

[0060] Figure 2A partial cross-sectional view of the reactive power compensation device provided in this application;

[0061] Figure 3 for Figure 2 The reactive power compensation device in the middle keeps the connecting cylinder away from the generator body (see diagram).

[0062] Figure 4 A partial schematic diagram of the extension rod locked in the connecting groove in one embodiment of the reactive power compensation device provided in this application;

[0063] Figure 5 A structural diagram of the locking assembly in the reactive power compensation device provided in this application;

[0064] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0065] Figure 7 for Figure 5 Another structural view of the central locking assembly;

[0066] Figure 8 A cross-sectional view of an embodiment of the static var generator in the reactive power compensation device provided in this application;

[0067] Figure 9 A structural diagram of a static var generator in one embodiment of the reactive power compensation device provided in this application;

[0068] Figure 10 for Figure 9 Another structural view of the static var generator.

[0069] Explanation of icon numbers:

[0070] 1000. Reactive power compensation device; 100. Static var generator; 10. Generator body; 20. Lock-out assembly; 21. Lock-out structure; 211. Extension rod; 212. Central disc; 22. Drive structure; 221. Handle; 222. Connecting rod; 223. First elastic element; 224. Connecting cylinder; 2241. Receiving cavity; 2242. First connecting hole; 2243. Second connecting hole; 2244. Limiting part; 225. Second elastic element; 226. Pushing part; 23. Electrical connection part;

[0071] 200, Cabinet; 201, Mounting cavity; 202, Mounting port; 203, Load-bearing guide rail; 300, Locking assembly; 301, Conductive component; 302, Connecting plate; 3021, Locking structure; 3022, Connecting groove; 3023, First clearance hole; 3024, Second clearance hole; 3025, Guide wedge; 303, Pushing structure; 304, Connecting terminal; 305, Insulating component; 306, Connecting component.

[0072] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0073] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0074] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0075] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0076] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0077] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0078] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0079] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0080] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0081] To compensate for reactive power in various power consumption scenarios, reactive power compensation devices are typically installed. In related technologies, the reactive power compensation device houses the static var generator (SVM) and other components in a cabinet. The SVM needs to be connected to the power grid via wiring within the cabinet. When the SVM malfunctions or requires maintenance, the technician must manually disconnect the wiring to de-energize and remove the generator. Similarly, installing the SVM requires separate wiring and securing of the generator, making the process inconvenient.

[0082] Based on the above considerations, this application proposes a reactive power compensation device 1000 to solve the problem of inconvenient maintenance of the static var generator 100 in the reactive power compensation device 1000.

[0083] Please refer to Figure 1 and Figure 2The reactive power compensation device 1000 includes a cabinet 200, a static var generator 100, and a locking assembly 300. The cabinet 200 has a mounting cavity 201 and a mounting port 202 communicating with the mounting cavity 201. The locking assembly 300 is located in the mounting cavity 201 and includes a conductive element 301 and a pushing structure 303. The conductive element 301 is used for electrical connection with the power grid, and the pushing structure 303 is retractable. The static var generator 100 includes a generator body 10 and a connecting element 23. The generator body 10 is located in the mounting cavity 201, and the connecting element 23 is connected to the generator body 10. The connecting element 23 and the conductive element 301 are in contact for electrical connection. The pushing structure 303 can push the connecting element 23 to separate the connecting element 23 and the conductive element 301.

[0084] The cabinet 200 serves as the supporting foundation for the reactive power compensation device 1000, and is used to install components such as the static var generator 100 and the locking assembly 300. Optionally, the reactive power compensation device 1000 may also include components such as a reactive power compensator, a control unit, and a fault detection module. The cabinet 200 typically includes a cabinet body with a mounting cavity 201 and a mounting port 202 communicating with the mounting cavity 201. The cabinet body may have a cuboid structure, and the mounting port 202 may be located on the side of the cabinet body to facilitate the installation and removal of components in the mounting cavity 201. Optionally, the cabinet 200 may also include a cabinet door, which is openable and closable at the mounting port 202 to cover the mounting port 202, thereby protecting the devices in the mounting cavity 201 when component installation and removal are not required, and preventing foreign objects from entering the mounting cavity 201.

[0085] A Static Var Generator (SVG), also known as a high-voltage dynamic reactive power compensation generator or a static synchronous compensator, is used to dynamically compensate reactive power and improve the power factor and voltage stability of a power system. The SVG includes a generator body 10 and a connector 23 electrically connected to the generator body 10. The generator body 10 is the main structure of the SVG, integrating, but not limited to, converters, capacitors, and control systems, to achieve functions such as dynamic reactive power compensation. The SVG is electrically connected to external devices via the connector 23. Optionally, the connector 23 and the generator body 10 can be electrically connected via wires, conductive sheets, or other conductive structures.

[0086] A conductive element 301 is provided on the locking assembly 300 for electrical connection with the power grid. When the locking and releasing assembly 20 and the locking assembly 300 are locked together, the connecting element 23 contacts the conductive element 301 to achieve electrical connection, thereby enabling the generator body 10 to be electrically connected to the power grid. Optionally, the connecting element 23 can be configured as, but is not limited to, a connecting contact piece, a conductive pin, a connecting plug, etc., and the conductive element 301 can be configured as, but is not limited to, a conductive contact piece, a conductive pin, a conductive socket, etc., without limitation.

[0087] The locking assembly 300 is also equipped with a pushing structure 303, which can be configured as, but is not limited to, a pushing cylinder, hydraulic cylinder, electric cylinder, electromagnet push rod, etc. When the static var generator 100 malfunctions or requires maintenance, the pushing structure 303 can push open the connecting part 23 to separate the connecting part 23 from the conductive part 301, thus de-energizing the static var generator 100. This eliminates the need for manual disconnection of the electrical connection, improving the ease of disassembly and assembly of the static var generator 100 and reducing the risk of electric shock during disassembly and assembly.

[0088] Optionally, the contacting component 23 can be moved relative to the generator body 10 so that it can be pushed away from the conductive component 301 by the pushing structure 303. Alternatively, the portion of the structure connected to the contacting component 23 can be moved relative to the generator body 10. For example, when the contacting component 23 is installed in the locking / releasing assembly 20, the pushing structure 303 can push the entire locking / releasing assembly 20 or the portion of the structure connected to the contacting component 23 to move, thus separating the contacting component 23 from the conductive component 301. This can be used to simultaneously release the locking assembly 300 from the locking / releasing assembly 20, either fully or partially. For example, when the locking / releasing assembly 20 and the locking assembly 300 are connected by magnetic attraction or snap-fit ​​connections, the pushing structure... When the contact 23 is pushed open, the release component 20 separates from the latch component 300 and contacts the locking structure 3021 locking the release component 20. In some embodiments, the release component 20 and the generator body 10 can be pushed simultaneously. In other embodiments, when the latch component 300 includes a connecting plate 302 with a connecting groove 3022, the push structure 303 can push the extension rod 211 of the release component 20 out of the connecting groove 3022 to separate the contact 23 from the conductive component 301. However, at this time, in the direction in which the electrostatic reactive generator exits the mounting cavity 201, the extension rod 211 will still be blocked and limited by the connecting plate 302, and the release component 20 cannot completely disengage from the locking of the connecting plate 302.

[0089] In other words, the technical solution of this application includes a conductive component 301 for connecting to the power grid in the cabinet 200, and a power connector 23 electrically connected to the generator body 10 on the static var generator 100. When the static var generator 100 is installed in the mounting cavity 201 of the cabinet 200, the power connector 23 and the conductive component 301 on the locking assembly 300 are in contact and electrically connected, thereby electrically connecting the generator body 10 of the static var generator 100 to the conductive component 301, thus achieving power connection of the static var generator 100. In case of a malfunction or maintenance of the static var generator 100, the push-pull structure 303 can push open the power connector 23 to separate the power connector 23 from the conductive component 301, de-energizing the static var generator 100. This eliminates the need for manual disconnection, improving the ease of maintenance of the static var generator 100 and reducing the risk of electric shock during disassembly and assembly.

[0090] Combined with reference Figure 1 and Figure 2 In one embodiment, the static var generator 100 further includes a latching-release assembly 20, which is connected to the generator body 10. The latching-release assembly 20 is provided with a power connector 23, and the latching-release assembly 20 is detachably connected to the latching assembly 300.

[0091] In this embodiment, the latching-releasing component 20 cooperates with the locking component 300 installed in the cabinet 200. The latching-releasing component 20 can connect with the locking component 300 to lock the static var generator 100 in the mounting cavity 201. Optionally, the latching-releasing component 20 and the locking component 300 can be configured as, but are not limited to, a magnetic attraction structure, a snap-fit ​​connection structure, or a limiting engagement structure of the connecting plate 302 and the extension rod 211 as described in the following embodiment. When it is necessary to remove the static var generator 100 from the mounting cavity 201, it is only necessary to unlock the latching-releasing component 20 from the locking component 300. Optionally, with the mounting port 202 located on the front side of the static var generator 100 for orientation description, the latching-releasing component 20 and the locking component 300 can be located on the rear side of the generator body 10, or they can be located on the left or right side of the generator body 10.

[0092] The latching assembly 20 is equipped with a power connector 23, which allows the static var generator 100 to be powered while the latching assembly 20 is connected to the locking assembly 300. When the static var generator 100 needs to be removed, the latching assembly 20 can be separated from the locking assembly 300 to release the lock on the static var generator 100, while simultaneously de-energizing the static var generator 100, making the disassembly and assembly of the static var generator 100 more convenient.

[0093] Combined with reference Figure 1 and Figure 2In one embodiment, the locking / releasing assembly 20 includes a locking / releasing structure 21 and a driving structure 22 connected to each other. The locking / releasing structure 21 and the driving structure 22 are movably disposed relative to the generator body 10. A power contact 23 is disposed on the locking / releasing structure 21, and a conductive element 301 is disposed on the locking structure 3021. The generator body 10 and the locking / releasing structure 21 are located in the mounting cavity 201, and the driving structure 22 is exposed in the mounting port 202. The driving structure 22 is configured to drive the locking / releasing structure 21 to move so that the locking / releasing structure 21 is locked or unlocked with the latch assembly 300.

[0094] In this embodiment, the locking / releasing assembly 20 includes a locking / releasing structure 21 for locking with the latch assembly 300, and a driving structure 22 for driving the locking / releasing structure 21 to move. The driving structure 22 can drive the locking / releasing structure 21 to move closer to or further away from the latch assembly 300 to lock or unlock the locking / releasing structure 21. The driving structure 22 can be directly connected to the locking / releasing structure 21 so that it drives the locking / releasing structure 21 to move synchronously when the driving structure 22 moves. For example, the driving structure 22 rotates while driving the locking / releasing structure 21 rotates, or the driving structure 22 moves in the same direction as the electrostatic var generator moves in and out of the mounting cavity 201. In some embodiments, the driving structure 22 and the locking / releasing structure 21 can also be connected by a transmission structure. For example, a transmission structure such as, but not limited to, a gear set, a gear and rack module, or a connecting rod 222 module can be provided to connect the driving structure 22 and the locking / releasing structure 21. Similarly, the driving structure 22 can be used to drive the locking / releasing structure 21 to move.

[0095] When the static var generator is placed in the mounting cavity 201, the locking and releasing structure 21 is located in the mounting cavity 201 to correspond with the locking assembly 300, while the driving structure 22 is exposed at the mounting port 202. When disassembling or assembling the static var generator 100, the locking and releasing structure 21 and the locking assembly 300 can be locked or unlocked directly from the outside of the cabinet 200 by operating the driving structure 22. The driving structure 22 can also be used as a handle to facilitate pulling out the static var generator 100, thereby improving the ease of disassembly and assembly of the static var generator 100.

[0096] Please refer to Figure 2 and Figure 4In one embodiment, the locking assembly 300 includes a connecting plate 302. The side of the connecting plate 302 facing away from the mounting port 202 is provided with a locking structure 3021, a conductive element 301, and a pushing structure 303. The locking and releasing structure 21 includes an extension rod 211, and a power connector 23 is disposed on the extension rod 211. The driving structure 22 is used to drive the extension rod 211 to the position of the locking structure 3021, or to move it to a position that is misaligned with the connecting plate 302. The extension rod 211 is disposed opposite to the pushing end of the pushing structure 303 and can be locked by the locking structure 3021. The pushing structure 303 is configured to push the extension rod 211 away from the locking structure 3021, so that the power connector 23 is separated from the conductive element 301.

[0097] In this embodiment, the locking assembly 300 includes a connecting plate 302. The surface of the connecting plate 302 facing away from the mounting opening 202 is spaced apart from the inner wall of the cabinet 200 facing the mounting opening 202 to form a movable space. The locking and releasing structure 21 includes an extension rod 211. The driving structure 22 can at least drive the extension rod 211 to slide or rotate along a plane parallel to the connecting plate 302, so that the extension rod 211 can be moved to the side of the connecting plate 302 facing away from the mounting opening 202 under the drive of the driving structure 22, or it can be moved to a position offset from the connecting plate 302. When the extension rod 211 is located on the side of the connecting plate 302 facing away from the mounting opening 202, in the direction in which the static var generator moves out of the mounting cavity 201, the extension rod 211 is blocked and limited by the connecting plate 302, thereby preventing the static var generator 100 from being removed from the mounting cavity 201. When the extension rod 211 moves to a position misaligned with the connecting plate 302, it will not be blocked by the connecting plate 302 in the direction in which the static var generator enters and exits the mounting cavity 201, allowing the static var generator 100 to freely enter and exit the mounting cavity 201. Optionally, the position where the extension rod 211 is misaligned with the connecting plate 302 can be such that the extension rod 211 is located in the outer edge region of the connecting plate 302, or a second clearance hole 3024 can be provided on the connecting plate 302. When the extension rod 211 moves to a position corresponding to the second clearance hole 3024, it will also be misaligned with the connecting plate 302 and will not be blocked by the connecting plate 302 in the direction in which the static var generator enters and exits the mounting cavity 201.

[0098] Meanwhile, a locking structure 3021 is provided on the side of the connecting plate 302 facing away from the mounting port 202. The locking structure 3021 can be configured as, but is not limited to, at least one of the following: connecting groove 3022, magnetic structure, or snap-fit ​​structure. When it is necessary to lock the electrostatic var generator, the extension rod 211 is located on the side of the connecting plate 302 facing away from the mounting port 202 and is locked by the locking structure 3021, thereby preventing the extension rod 211 from moving to a position misaligned with the connecting plate 302, thus improving the locking strength and stability of the electrostatic var generator. The connecting element 23 is set on the extension rod 211, with at least a portion of the connecting element 23 located on the surface of the extension rod 211. The conductive element 301 is set on the side of the connecting plate 302 facing away from the mounting port 202 and is configured corresponding to the locking structure 3021, so that when the extension rod 211 is locked by the locking structure 3021, the connecting element 23 can contact the conductive element 301.

[0099] Optionally, the push structure 303 is used to push the extension rod 211 away from the locking structure 3021, and can be used to push the extension rod 211 to move along the surface of the connecting plate 302; in some embodiments, the extension rod 211 can also move along the direction of the electrostatic var generator entering and exiting the mounting cavity 201, at which time the push structure 303 can be used to push the extension rod 211 along the direction of the electrostatic var generator entering the mounting cavity 201 to the connecting plate 302.

[0100] Optionally, the locking assembly 300 may further include a connector 306 located on the side of the connecting plate 302 facing away from the mounting port 202. The end of the connector 306 away from the connecting plate 302 is connected to the cabinet 200, thereby both fixing the connecting plate 302 in the cabinet 200 and allowing the side of the connecting plate 302 facing away from the mounting port 202 to have room for movement. The connector 306 may be configured as, but is not limited to, a plate-like or rod-like structure. In some embodiments, the edge of the connecting plate 302 may extend to the top wall, bottom wall, or at least one side wall on both sides of the mounting port 202 for connection. This also fixes the connecting plate 302 in the cabinet 200 and allows the side of the connecting plate 302 facing away from the mounting port 202 to have room for movement.

[0101] In other words, using the above scheme, when it is necessary to lock the static var generator 100 in the cabinet 200, the extension rod 211 on the latching assembly 20 is moved to the back side of the connecting plate 302 by the drive structure 22 and locked by the locking structure 3021. At this time, in the direction where the static var generator 100 moves out of the mounting cavity 201, the extension rod 211 is blocked and limited by the connecting plate 302, so that the static var generator 100 cannot be removed from the mounting cavity 201. When it is necessary to remove the static var generator 100, the drive structure 22 drives the extension rod 211 to separate from the locking structure 3021 and moves the extension rod 211 to a position misaligned with the connecting plate 302. The extension rod 211 is not blocked by the connecting plate 302, so that the static var generator 100 can be removed from the mounting cavity 201. With this setting, locking and unlocking the static var generator 100 is relatively convenient, and the stability is high when locked.

[0102] Combined with reference Figures 4 to 6 In one embodiment, the locking structure 3021 includes a connecting groove 3022, a conductive element 301 is disposed on the groove wall of the connecting groove 3022, at least a portion of the structure of the extension rod 211 can be embedded in the connecting groove 3022, and the driving structure 22 is also used to drive the extension rod 211 closer to or away from the generator body 10 so that the extension rod 211 enters and exits the connecting groove 3022; the pushing structure 303 is located in the connecting groove 3022 or on the outer side of the end of the connecting groove 3022. When the pushing structure 303 extends, it can push the extension rod 211 outward of the connecting groove 3022 so that the connecting element 23 and the conductive element 301 are separated.

[0103] In this embodiment, the locking structure 3021 includes an extension rod 211, which can be embedded in the connecting groove 3022 to lock onto the connecting plate 302. This improves the locking strength, reduces the risk of the extension rod 211 disengaging from the locked state and the connecting plate 302 due to misoperation, ensures a stable connection between the power connector 23 and the conductive component 301, and ensures that the static var generator 100 is stably installed in the cabinet 200. Specifically, by placing the conductive component 301 in the connecting groove 3022, the extension rod 211 can contact the power connector 23 and the conductive component 301 when embedded in the connecting groove 3022. The pushing end of the pushing structure 303 is positioned with its back to the mounting opening 202. When the pushing structure 303 extends, the extension rod 211 is pushed outward from the connecting groove 3022, thereby separating the power connector 23 and the conductive component 301.

[0104] Optionally, the locking structure 3021 may also include other connecting structures for further locking the extension rod 211 when it is located in the connecting groove 3022. For example, it may include a magnet disposed in the connecting groove 3022, the extension rod 211 may be made of a material that can be attracted by a magnet, or a magnet may be disposed on the extension rod 211 so that it is magnetically fixed when it is located in the connecting groove 3022, thereby further improving the stability of the extension rod 211 in the connecting groove 3022; in some embodiments, the locking structure 3021 may also include, but is not limited to, a snap-fit ​​structure.

[0105] Please refer to Figure 5 and Figure 7 In one embodiment, the connecting plate 302 is provided with a first clearance hole 3023 and a second clearance hole 3024 that pass through both sides of the surface. The second clearance hole 3024 and the locking structure 3021 are arranged circumferentially along the first clearance hole 3023, and the second clearance hole 3024 communicates with the first clearance hole 3023. The locking and releasing structure 21 also includes a central plate 212. An extension rod 211 extends from the edge of the central plate 212 in a direction away from the central plate 212. The central plate 212 passes through the first clearance hole 3023, and the extension rod 211 can pass through the second clearance hole 3024. The locking and releasing structure 21 can rotate relative to the connecting plate 302 so that the extension rod 211 moves to the second clearance hole 3024 or moves to the connecting groove 3022.

[0106] In this embodiment, when the static var generator 100 is locked in the cabinet 200, the central disk 212 of the latching-release assembly 20 passes through the first clearance hole 3023 provided on the connecting disk 302. This allows the connecting disk 302 to limit the latching-release structure 21 radially in the first clearance hole 3023, preventing the static var generator 100 from shifting and improving installation stability. When it is necessary to disassemble or assemble the static var generator 100, the latching-release structure 21 is driven to rotate by the drive structure 22, causing the extension rod 211 to move to the position of the second clearance hole 3024 to offset from the connecting disk 302. This allows the static var generator 100 to freely enter and exit the mounting cavity 201, or the extension rod 211 can be driven to the position of the connecting groove 3022 so that the extension rod 211 can enter the limiting groove and be locked, making operation convenient.

[0107] Please refer to Figure 5 and Figure 6 In one embodiment, the connecting plate 302 is provided with a guide wedge 3025, which is located between the second clearance hole 3024 and the connecting groove 3022. The thickness of the guide wedge 3025 increases from the second clearance hole 3024 toward the connecting groove 3022.

[0108] In this embodiment, by setting the guide wedge 3025, the risk of the limiting rod detaching from the connecting groove 3022 and moving to the second clearance hole can be reduced when the extension rod 211 is limited to the connecting groove 3022. When it is necessary to remove the static var generator 100, the extension rod 211 can automatically slide along the guide wedge 3025 to the second clearance hole 3024, thereby improving the convenience of removing the static var generator 100.

[0109] In some embodiments, the drive structure 22 includes at least a handle 221, a connecting rod 222, and a first elastic element 223. The handle 221 is connected to the locking and releasing structure 21 via the connecting rod 222. The first elastic element 223 is sandwiched between the handle 221 and the generator body 10, and is used to apply an elastic force to the handle 221 to tighten the locking and releasing structure 21. Through the setting of the guide wedge 3025, during the process of driving the handle 221 to rotate and drive the extension rod 211 to rotate into the connecting groove 3022, the extension rod 211 moves along the guide wedge 3025. 025 slides, thereby causing the extension rod 211 to drive the handle 221 to move towards the inside of the mounting cavity 201, so that the handle 221 compresses the first elastic element 223. Furthermore, by setting the guide wedge 3025, the thickness at the location of the connecting groove 3022 is increased, thereby increasing the compression length of the first elastic element 223, which in turn increases the elastic force of the first elastic element 223 and the pushing force on the handle 221. This allows the handle 221 to apply a greater tension force to the extension rod 211, ensuring that the extension rod 211 is stably limited in the connecting groove 3022. Optionally, the drive structure 22 is also provided with a second elastic element 225. The arrangement of the second elastic element 225 is as described in the following embodiment. The guide wedge 3025 can also be arranged so that during the process of the extension rod 211 rotating to the connecting groove 3022, the extension rod 211 slides along the guide wedge 3025, thereby causing the extension rod 211 to drive the handle 221 to move towards the inside of the mounting cavity 201, so that the handle 221 compresses the second elastic element 225, which can increase the elastic force of the second elastic element 225 and the pushing force on the handle 221.

[0110] Optionally, in the following embodiments, the connecting plate 302 is provided with a plurality of second clearance holes and a plurality of connecting grooves 3022, such that one second clearance hole and one connecting groove 3022 are correspondingly provided, and a guide wedge 3025 is provided between the pair of second clearance holes and connecting grooves 3022.

[0111] Combined with reference Figure 2 , Figure 5 as well as Figure 9In one embodiment, the locking and releasing structure 21 is provided with a plurality of extension rods 211, at least one of which is provided with a power connector 23. The plurality of extension rods 211 are arranged circumferentially along the central disk 212. The connecting disk 302 is provided with a plurality of second clearance holes 3024 and a plurality of connecting grooves 3022. The plurality of second clearance holes 3024 and the plurality of connecting grooves 3022 are staggered along the circumferential direction of the connecting disk 302.

[0112] In this embodiment, multiple extension rods 211 and multiple connecting slots 3022 are matched one-to-one, thereby improving the connection strength between the locking and releasing assembly 20 and the locking assembly 300 when the locking and releasing structure 21 is locked to the connecting plate 302, thereby improving the stability of the static var generator 100 installed in the cabinet 200.

[0113] Typically, an electrostatic var generator has a positive terminal connector 23 and a negative terminal connector 23. Optionally, the positive terminal connector 23 and the negative terminal connector 23 can be mounted on the same extension rod 211; alternatively, the positive terminal connector 23 and the negative terminal connector 23 can be mounted on different extension rods 211.

[0114] Please refer to Figure 2 and Figure 8 In one embodiment, the drive structure 22 includes a handle 221 and a connecting rod 222 connected to each other. The handle 221 is exposed in the mounting port 202. The locking and releasing structure 21 is located on the side of the generator body 10 opposite to the handle 221. The connecting rod 222 passes through the generator body 10 and is connected to the locking and releasing structure 21. The handle 221 and the connecting rod 222 can rotate relative to the generator body 10.

[0115] In this embodiment, the connecting rod 222 of the drive structure 22 passes through the generator body 10 and is directly connected to the locking and releasing structure 21. The handle 221 of the drive structure 22 is exposed in the mounting port 202 for user operation. The locking and releasing assembly 20 can rotate relative to the generator body 10 and move along the length direction of the connecting rod 222. When the handle 221 is rotated, the handle 221 drives the locking and releasing structure 21 to rotate synchronously through the connecting rod 222, so that the extension rod 211 of the locking and releasing structure 21 rotates to the position of the locking structure 3021, or rotates to be misaligned with the connecting plate 302. When the handle 221 is driven to move along the length direction of the connecting rod 222 (i.e., the direction in which the electrostatic reactive power generator enters and exits the mounting cavity 201), the connecting rod 222 drives the extension rod 211 to move in the same direction. This can drive the extension rod 211 to enter and exit the connecting groove 3022, or drive the extension rod 211 past the position of the connecting plate 302, for example, drive the extension rod 211 through the second clearance hole 3024. This configuration eliminates the need for a complex transmission structure between the drive structure 22 and the locking / releasing structure 21, resulting in a simple structure.

[0116] Optionally, only the handle 221 and the connecting rod 222 can be rotatably configured relative to the generator body 10, so that the handle 221 and the connecting rod 222 can drive the extension rod 211 to rotate. When the handle 221 and the connecting rod 222 drive the extension rod 211 to move along the length direction of the connecting rod 222, the generator body 10 will move in the same direction simultaneously. Alternatively, the handle 221 and the connecting rod 222 can move relative to the generator body 10 along the length direction of the connecting rod 222. When the handle 221 and the connecting rod 222 drive the extension rod 211 to move in and out of the connecting groove 3022, the generator body 10 will not move.

[0117] Please refer to Figure 2 and Figure 8 In one embodiment, along the length of the connecting rod 222, the handle 221 and the connecting rod 222 are movable relative to the generator body 10; the drive structure 22 also includes a first elastic element 223, which is sandwiched between the handle 221 and the generator body 10, and the first elastic element 223 applies an elastic force away from the generator body 10 to the handle 221.

[0118] In this embodiment, the handle 221 and the connecting rod 222 move relative to the generator body 10 along the length of the connecting rod 222, and a first elastic element 223 is provided between the handle 221 and the generator body 10. The first elastic element 223 can be a spring, an elastic airbag, or other structure. With this arrangement, when the static var generator 100 is locked in the cabinet 200, the first elastic element 223 applies an elastic force to the handle 221 toward the outside of the mounting cavity 201, thereby tightening the locking and releasing structure 21. This ensures that the extension rod 211 of the locking and releasing structure 21 is embedded in the connecting groove 3022, and the extension rod 211 is not easily dislodged from the connecting groove 3022, improving the connection strength and stability.

[0119] Please refer to Figure 2 , Figure 8 as well as Figure 10In one embodiment, the drive structure 22 further includes a connecting cylinder 224 and a second elastic member 225. The connecting cylinder 224 is provided with a receiving cavity 2241 and a first connecting hole 2242 and a second connecting hole 2243 communicating with the receiving cavity 2241. The first connecting hole 2242 is provided at one end of the connecting cylinder 224 facing the generator body 10. The connecting rod 222 passes through the first connecting hole 2242 and is inserted into the receiving cavity 2241. The second connecting hole 2243 is provided on the side wall of the connecting cylinder 224 and extends along the length direction of the connecting cylinder 224. The handle 221 passes through the second connecting hole 2243. A limiting part 2244 protrudes from the outer side wall of the connecting cylinder 224. The limiting part 2244 is located on the side of the handle 221 facing the generator body 10. The second elastic member 225 is sleeved on the outside of the connecting cylinder 224 and sandwiched between the handle 221 and the limiting part 2244.

[0120] In this embodiment, the drive structure 22 is provided with a connecting cylinder 224, which abuts against the generator body 10. Optionally, the connecting cylinder 224 may only abut against the generator body 10, or the connecting cylinder 224 may be connected to the generator body 10. One end of the connecting cylinder 224 facing the generator body 10 is open to form a first communicating hole 2242 for the connecting rod 222 to pass through. The end of the connecting rod 222 connected to the handle 221 is inserted into the receiving cavity 2241 of the connecting cylinder 224. Part of the structure of the handle 221 is exposed outside the connecting cylinder 224 through the second communicating hole 2243 on the side wall of the connecting cylinder 224, which is convenient for the user to hold and operate.

[0121] Furthermore, a limiting part 2244 is provided on the outside of the connecting cylinder 224. The limiting part 2244 is located on the side of the handle 221 facing the generator body 10. The limiting part 2244 can be located at the end where the first connecting hole 2242 is located, or it can be located in the middle of the connecting cylinder 224. A second elastic member 225 is provided on the outside of the connecting cylinder 224. The second elastic member 225 is sandwiched between the limiting part 2244 and the handle 221. With this configuration, the second elastic member 225 can apply an elastic force to the handle 221 toward the outside of the mounting cavity 201, increasing the pulling force of the handle 221 to tighten the locking and releasing structure 21, so as to ensure that the extension rod 211 of the locking and releasing structure 21 is embedded in the connecting groove 3022 when the extension rod 211 is embedded in the connecting groove 3022, thereby improving the connection strength and stability.

[0122] In some embodiments, the drive structure 22 further includes a first elastic element 223, which is disposed in the receiving cavity 2241 and sandwiched between the handle 221 and the generator body 10. In this arrangement, the first elastic element 223 and the second elastic element 225 can simultaneously apply an elastic force toward the outside of the mounting cavity 201 to the handle 221, thereby increasing the tension of the handle 221 in tightening the locking and releasing structure 21. The connecting cylinder 224 can protect the first elastic element 223.

[0123] Combined with reference Figure 2 and Figure 3 In one embodiment, the drive structure 22 further includes a pusher 226, which is threadedly connected to one end of the connecting cylinder 224 away from the first connecting hole 2242. One end of the pusher 226 inserted into the accommodating cavity 2241 abuts against the handle 221. When the pusher 226 rotates, it drives the connecting cylinder 224 to move closer to or away from the generator body 10.

[0124] In this embodiment, a threaded hole is provided at the end of the connecting cylinder 224 away from the first connecting hole 2242, and the pusher 226 is threaded into the threaded hole, so that the pusher 226 is connected to the connecting cylinder 224, and the pusher 226 and the connecting cylinder 224 can move relative to each other along their length. The end of the pusher 226 inserted into the receiving cavity 2241 abuts against the handle 221. With this arrangement, when the pusher 226 is rotated to move the pusher 226 relative to the connecting cylinder 224 toward the generator body 10, since the pusher 226 is blocked by the handle 221, it actually drives the connecting cylinder 224 to move away from the generator body 10.

[0125] Using the above method, when it is necessary to move the extension rod 211 out of the connecting groove 3022, the pusher 226 can first drive the connecting cylinder 224 away from the generator body 10. With this configuration, when the handle 221 is pressed against the generator body 10 to push the extension rod 211 out of the connecting groove 3022, the handle 221, the connecting cylinder 224, and the second elastic element 225 can all be pressed against the generator body 10 together, eliminating the need to overcome the elastic force of the second elastic element 225 and improving the ease of disassembly and assembly. Optionally, the drive structure 22 may also include a first elastic element 223. When the connecting cylinder 224 is driven away from the generator body 10 by the pusher 226, pushing the handle 221 towards the generator body 10 only requires overcoming the elastic force of the first elastic element 223, and similarly, does not require overcoming the elastic force of the second elastic element 225.

[0126] Please refer to Figure 5 and Figure 6 In one embodiment, the latching assembly 300 further includes a connection terminal 304 located outside the connection groove 3022 and electrically connected to the conductive element 301. The connection terminal 304 is used to electrically connect to the power grid so that the conductive element 301 is electrically connected to the power grid.

[0127] In this configuration, the conductive component 301 can be electrically connected to the power grid via the connection terminal 304, which is located outside the connection slot 3022 for easy wiring.

[0128] In one embodiment, the locking assembly 300 further includes an insulating member 305, which covers the opening of the connecting groove 3022. One end of the insulating member 305 is connected to the connecting plate 302, and the other end is movably disposed. The insulating member 305 is elastic, and the extension rod 211 can move the insulating member 305 to enter and exit the connecting groove 3022.

[0129] Using the above method, when the extension rod 211 is embedded in the connecting groove 3022, the insulating component 305 can limit and protect the extension rod 211, and can cut off the arc generated when the connecting component 23 and the conductive component 301 are connected and disconnected, thus playing an arc-extinguishing role. During the process of the extension rod 211 entering and exiting the connecting groove 3022, the extension rod 211 moves the insulating component 305 to deform it, so as not to obstruct the extension rod 211. When the extension rod 211 has exited or entered the connecting groove 3022, the extension rod 211 returns to its original position to block the opening of the connecting groove 3022. Optionally, the insulating component 305 can be made of, but is not limited to, acrylic, rubber, etc. Optionally, one insulating component 305 can be set at the opening of the connecting groove 3022, or two insulating components 305 can be set side by side, with the two insulating components 305 respectively connected to both sides of the connecting groove 3022.

[0130] In one embodiment, a limiting sleeve is provided in the generator body 10, and the drive structure 22 passes through the limiting sleeve.

[0131] In this embodiment, the limiting sleeve is configured as a cylindrical structure with both ends through it. The driving structure 22 passes through the limiting sleeve. For example, the connecting rod 222 in the previous embodiment passes through the limiting sleeve so as to guide and limit the connecting rod 222 by using the limiting sleeve, so as to avoid the driving structure 22 from deflecting during the movement along the length direction of the connecting rod 222, and also to reduce the risk of the connecting rod 222 bending.

[0132] In one embodiment, the pushing structure 303 is configured as an electromagnet push rod structure.

[0133] In this embodiment, the electromagnet push rod is easy to control and has a fast response speed, which can quickly separate the energizing component 23 and the conductive component 301 when a fault is detected or power needs to be cut off.

[0134] In one embodiment, the reactive power compensation device 1000 further includes a fault detection module, which is located in the cabinet 200 and is configured to issue a fault signal when a fault is detected in the static var generator 100.

[0135] Using the above method, the fault status of the static var generator 100 can be quickly detected, and the fault signal can be fed back to the control system when a fault occurs, so that the control system can promptly control the jacking structure 303 to push open the electrical connector 23 for power disconnection and isolation, thereby achieving rapid response and improving the degree of automation.

[0136] In the following embodiments, when the reactive power compensation device 1000 is equipped with multiple static var generators 100, the fault detection module can also be used to detect which static var generator 100 has a fault, so as to quickly locate and identify the faulty static var generator 100, thereby accurately disassembling and maintaining the faulty static var generator 100 and improving the convenience of maintenance.

[0137] Please refer to Figure 1 In one embodiment, the reactive power compensation device 1000 is provided with a plurality of static var generators 100.

[0138] This configuration enhances overall compensation capability and reliability, meeting the needs of high-capacity applications. Multiple static var generators 100 can be connected in parallel, effectively distributing the compensation task in industrial environments with severe harmonics and frequent load fluctuations, preventing overload of a single device, and ensuring that the other parallel static var generators 100 can continue to operate even if one of them fails.

[0139] Please refer to Figure 1 In one embodiment, a support rail 203 is provided in the cabinet 200. The support rail 203 extends from the mounting port 202 to the inside of the mounting cavity 201, and the generator body 10 is supported on the support rail 203.

[0140] This configuration utilizes the support rails 203 to define the installation position of the static var generator 100 within the mounting cavity 201, and the support rails 203 also support the static var generator 100, resulting in a reasonable overall structural arrangement. Furthermore, the static var generator 100 can slide along the support rails 203 to enter and exit the mounting cavity 201, improving ease of assembly and disassembly. Optionally, at least two support rails 203 can be arranged side-by-side to support the same static var generator 100. Alternatively, a support plate can be placed between two adjacent support rails 203 to support the static var generator 100, both of which improve load-bearing strength and stability.

[0141] Optionally, when the reactive power compensation device 1000 is equipped with multiple static var generators 100, multiple sets of bearing rails 203 can be set to support the multiple static var generators 100 respectively. The multiple sets of bearing rails 203 can be arranged along the height direction of the cabinet 200, or they can be arranged in an array along the width and height directions of the cabinet 200. There is no limitation here.

[0142] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A reactive power compensation device, characterized in that, include: A server rack, wherein the server rack is provided with a mounting cavity and a mounting port communicating with the mounting cavity; A locking assembly, disposed in the mounting cavity, includes a connecting plate. The side of the connecting plate facing away from the mounting opening has a locking structure, a conductive element, and a pushing structure. The conductive element is used for electrical connection to the power grid. A static var generator, comprising a generator body and a power connection component, wherein the power connection component is electrically connected to the generator body; The generator body is located in the mounting cavity, the electrical contact and the conductive part are in contact for electrical connection, the push structure is telescopically oriented, and the push structure can push the electrical contact to separate the electrical contact and the conductive part; The static var generator also includes a latch-release assembly, which is connected to the generator body and is detachably connected to the latch assembly. The latching and releasing assembly includes a latching and releasing structure and a driving structure connected to each other. The latching and releasing structure and the driving structure are movably disposed relative to the generator body. The latching and releasing structure is located in the mounting cavity. The latching and releasing structure includes an extension rod, and the electrical contact is disposed on the extension rod. The drive structure is exposed at the mounting port. The drive structure is configured to drive the locking and releasing structure to move the extension rod to the position of the locking structure, or to move it to a position that is misaligned with the connecting plate, so that the locking and releasing structure locks or unlocks the latch assembly. The extension rod is disposed opposite to the pushing end of the pushing structure, and the pushing structure is configured to push the extension rod away from the locking structure, thereby separating the electrical contact from the conductive component.

2. The reactive power compensation device as described in claim 1, characterized in that, The locking structure includes a connecting groove, the conductive element is disposed on the groove wall of the connecting groove, at least a portion of the extension rod is embedded in the connecting groove, and the driving structure is further used to drive the extension rod closer to or away from the generator body so that the extension rod enters and exits the connecting groove. The pushing structure is located in the connecting groove or on the outer side of the end of the connecting groove. When the pushing structure extends, it can push the extension rod outward of the connecting groove to separate the electrical contact and the conductive part.

3. The reactive power compensation device as described in claim 2, characterized in that, The connecting plate is provided with a first clearance hole and a second clearance hole that pass through both sides of the surface. The second clearance hole and the locking structure are arranged circumferentially along the first clearance hole, and the second clearance hole communicates with the first clearance hole. The locking and releasing structure also includes a central disk, and the extension rod extends from the edge of the central disk in a direction away from the central disk. The central disk passes through the first clearance hole, and the extension rod can pass through the second clearance hole. The locking and releasing structure can rotate relative to the connecting disc to move the extension rod to the second clearance hole or to the connecting groove.

4. The reactive power compensation device as described in claim 3, characterized in that, The connecting plate is provided with a guide wedge, which is located between the second clearance hole and the connecting groove. The thickness of the guide wedge increases from the second clearance hole to the connecting groove. And / or, the locking and releasing structure is provided with a plurality of the extension rods, at least one of the extension rods is provided with the electrical contact, the plurality of the extension rods are arranged circumferentially along the central disk, the connecting disk is provided with a plurality of second clearance holes and a plurality of the connecting grooves, the plurality of second clearance holes and the plurality of the connecting grooves are staggered along the circumferential direction of the connecting disk.

5. The reactive power compensation device as described in claim 2, characterized in that, The drive structure includes a handle and a connecting rod connected together, the handle being exposed in the mounting port, and the locking and releasing structure being located on the side of the generator body opposite to the handle; The connecting rod passes through the generator body and is connected to the locking and releasing structure. The handle and the connecting rod can rotate relative to the generator body.

6. The reactive power compensation device as described in claim 5, characterized in that, Along the length of the connecting rod, the handle and the connecting rod are movable relative to the generator body; The drive structure further includes a first elastic element, which is sandwiched between the handle and the generator body, and applies an elastic force to the handle away from the generator body.

7. The reactive power compensation device as described in claim 5, characterized in that, The drive structure also includes a connecting cylinder and a second elastic element; The connecting cylinder is provided with a receiving cavity and a first communicating hole and a second communicating hole communicating with the receiving cavity. The first communicating hole is located at one end of the connecting cylinder facing the generator body. The connecting rod passes through the first communicating hole and is inserted into the receiving cavity. The second connecting hole is provided on the side wall of the connecting cylinder and extends along the length of the connecting cylinder, and the handle passes through the second connecting hole; The outer wall of the connecting cylinder has a protruding limiting part, which is located on the side of the handle facing the generator body. The second elastic element is sleeved on the outside of the connecting cylinder and sandwiched between the handle and the limiting part.

8. The reactive power compensation device as described in claim 7, characterized in that, The driving structure also includes a pusher, which is threadedly connected to the end of the connecting cylinder away from the first communicating hole; One end of the pusher is inserted into the accommodating cavity and abuts against the handle. When the pusher rotates, it drives the connecting cylinder to move closer to or away from the generator body.

9. The reactive power compensation device as described in claim 2, characterized in that, The locking assembly further includes a connecting terminal located outside the connecting groove and electrically connected to the conductive element. The connecting terminal is used to electrically connect to the power grid so that the conductive element is electrically connected to the power grid. And / or, the locking assembly further includes an insulating member that covers the opening of the connecting groove. One end of the insulating member is connected to the connecting disc, and the other end is movably disposed. The insulating member is elastic, and the extension rod can move the insulating member to enter and exit the connecting groove. And / or, the generator body is provided with a limiting sleeve, and the driving structure passes through the limiting sleeve.

10. The reactive power compensation device as described in any one of claims 1 to 9, characterized in that, The jacking structure is configured as an electromagnet push rod structure; And / or, the reactive power compensation device further includes a fault detection module, which is located in the cabinet and is configured to issue a fault signal when a fault is detected in the static var generator. And / or, the reactive power compensation device is equipped with a plurality of the aforementioned static var generators; And / or, the cabinet is provided with a support rail, the support rail extends from the mounting port to the inside of the mounting cavity, and the generator body is supported on the support rail.

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