An active filter cabinet

By adopting a pluggable filter module installation method and a guide rail frame structure in the active filter cabinet, the problems of difficult maintenance, low heat dissipation efficiency and insufficient safety are solved, realizing rapid maintenance, optimized heat dissipation and space utilization, and improving safety and power supply continuity.

CN224537622UActive Publication Date: 2026-07-21ZHEJIANG YINGBO ZHIYUAN ELECTRIC POWER EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG YINGBO ZHIYUAN ELECTRIC POWER EQUIPMENT CO LTD
Filing Date
2025-08-28
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing active filter cabinets are difficult to maintain, have low heat dissipation efficiency, low space utilization, and insufficient safety, resulting in power supply continuity and long construction cycles.

Method used

It adopts a pluggable filter module installation method, combined with guide rail and frame structure, to realize independent disassembly and assembly of modules and heat dissipation gap. It is equipped with cooling fan and partition door design, and optimized cable layout to improve safety and heat dissipation efficiency.

Benefits of technology

It enables rapid maintenance of the filter module, optimizes heat dissipation and space utilization, reduces construction difficulty, and improves safety and power supply continuity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of electrical equipment, in particular to an active filter cabinet which comprises a cabinet body and a plurality of filter modules installed in the cabinet body, the cabinet body is internally provided with a mounting frame, and the plurality of filter modules are installed on the mounting frame at intervals; the mounting frame comprises a plurality of guide rails, and the filter modules are pluggably installed on the mounting frame along the guide rails. The utility model realizes the technical purposes of quick maintenance, heat dissipation optimization and space intensive layout by improving the installation mode of the filter modules in the cabinet body.
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Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, and more specifically, to an active filter cabinet. Background Technology

[0002] An active power filter cabinet is a device used in power systems to filter harmonics and compensate reactive power. It typically contains a large number of power electronic components and control modules. However, existing active power filter cabinets have the following design problems: Maintenance difficulties: Traditional active filter cabinets are fixedly installed, and in case of failure, the entire cabinet needs to be disconnected and disassembled, which affects the continuity of power supply.

[0003] Low heat dissipation efficiency: Dense stacking of power modules and unreasonable airflow design lead to local overheating, reducing device lifespan.

[0004] Low space utilization: Cables and modules are intertwined, and rewiring is required when expanding or replacing, resulting in a long construction period.

[0005] Insufficient safety: Lack of physical isolation during live operation poses a risk of electric shock.

[0006] Therefore, designing a structural solution that can optimize the above-mentioned problems has become an urgent technical issue to be addressed. Utility Model Content

[0007] The purpose of this application is to provide an active filter cabinet that achieves the technical objectives of rapid maintenance, optimized heat dissipation, and space-efficient layout by improving the installation method of the filter module inside the cabinet.

[0008] To achieve the above objectives, this utility model provides an active filter cabinet, including a cabinet body and a plurality of filter modules installed inside the cabinet body. The cabinet body is provided with an installation frame, and the plurality of filter modules are installed on the installation frame at intervals. The mounting frame includes multiple guide rails, and the filter module is pluggably mounted on the mounting frame along the guide rails.

[0009] In an optional embodiment, the mounting frame is provided with multiple pairs of track beams to form guide rails for plugging and unplugging the filter modules, and each filter module is independently mounted on the track beam.

[0010] In an optional embodiment, a main control frame is provided above the mounting frame, with a wiring gap between the main control frame and the mounting frame, and a main control module is installed on the main control frame.

[0011] In an optional embodiment, the filtering module includes a flat, square housing with a height less than the height between adjacent track beams, so as to allow for a heat dissipation gap between the filtering modules.

[0012] In an optional embodiment, the square housing includes a heat dissipation plate, which is disposed on the front and rear sides of the filter module in the insertion / removal direction. A cooling fan is installed inside the square housing. The cooling fan is located on the front and rear sides of the square housing and is respectively positioned corresponding to the heat dissipation plate.

[0013] In an optional embodiment, an expansion frame is provided on the rear side of the mounting frame and the main control frame, and the internal space of the expansion frame forms a hub heat dissipation compartment.

[0014] In an optional embodiment, the gap between adjacent track beams communicates with the space of the heat dissipation compartment.

[0015] In an optional embodiment, the active filter cabinet is provided with a front cabinet door, which includes a main control cabinet door and a heat dissipation cabinet door, both of which are single-door structures. The main control cabinet door is positioned opposite to the main control frame and the wiring gap, and a master control switch and a master control display screen are installed on the main control cabinet door.

[0016] In an optional embodiment, the heat dissipation cabinet door is positioned opposite the mounting frame, and heat dissipation holes are provided in sections on the heat dissipation cabinet door, with the sections of heat dissipation holes corresponding to the installation positions of the filter modules.

[0017] In an optional embodiment, the active filter cabinet is provided with a rear cabinet door, which includes a double-door structure, and each rear cabinet door is provided with heat dissipation holes.

[0018] By setting up an installation frame inside the active filter cabinet, the necessary structural foundation for the filter modules can be provided. By installing multiple filter modules at intervals on the installation frame, it is possible to separate and independently install different filter modules on the installation frame.

[0019] The spaced installation method facilitates the creation of heat dissipation gaps between different filter modules, which helps optimize the heat dissipation space and ensures that different filter modules receive good and effective heat dissipation.

[0020] By incorporating multiple guide rails on the mounting frame, multiple filter modules can be plugged into and installed in the cabinet along the guide rails, enabling the filter modules to be detached and installed independently on the active filter cabinet, facilitating rapid maintenance of the filter modules.

[0021] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a front view of the internal structure of an active filter cabinet. Figure 2 This is a side view of the internal structure of the active filter cabinet. Figure 3 This is a schematic diagram of the installation structure of the filter module; Figure 4 This is a schematic diagram of the front structure of an active filter cabinet; Figure 5 This is a schematic diagram of the rear structure of an active filter cabinet.

[0024] icon: 1-Cabinet body; 11-Mounting frame; 12-Rail beam; 13-Main control frame; 14-Extension frame; 15-Cable routing clearance; 16-Cable cooling compartment; 2-Filter module; 21-Square housing; 22-Heat dissipation plate; 23-Cooling fan; 3-Main control module; 4-Front cabinet door; 41-Main control cabinet door; 411-Master control switch; 412-Master control display screen; 42-Cooling cabinet door; 5- Rear cabinet door; 6- Heat dissipation holes. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not 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 this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] The active filter in this application mainly optimizes the maintenance and heat dissipation of the filter module by improving the installation method of the filter module inside the cabinet, while also facilitating the partitioning and isolation of cables and modules, reducing the difficulty of construction operations.

[0029] See Figure 1 and combined Figures 2-5 The active filter cabinet of this utility model has a main structure including a cabinet 1, and multiple filter modules 2, which are operating functional modules, are detachably and can be pushed and pulled and installed inside the cabinet 1.

[0030] From the perspective of facilitating the installation of filter modules 2, the cabinet 1 is equipped with an installation frame 11, and multiple filter modules 2 are installed on the installation frame 11 at intervals. This allows for the separate and independent installation of multiple filter modules 2 on the installation frame 11, thereby achieving a compact layout of filter modules 2. At the same time, the separate and independent installation form facilitates the formation of heat dissipation space for filter modules 2, which can prevent the accumulation of heat generated during operation at the installation location of filter modules 2 and improve the heat dissipation effect.

[0031] From the detachable and push-pull mounting angle of each filter module 2, the mounting frame 11 includes multiple guide rails, along which the filter modules 2 are pluggably mounted on the mounting frame 11.

[0032] From this perspective, the spaced installation of multiple filter modules 2 on the mounting frame 11 facilitates the independent assembly and disassembly of different filter modules 2, making it easier to maintain them separately.

[0033] The active filter cabinet of this utility model enables the filter module 2 to be installed as a drawer-type modular unit on the filter cabinet. The filter module 2 can be smoothly pulled out along the full stroke of the guide rail, realizing quick plug-in and unplugging of the module and facilitating maintenance.

[0034] Meanwhile, the separate installation of multiple drawer-type modules can form an effective heat dissipation space, thereby enabling each filter module 2 to be cooled independently, and to a certain extent, it constitutes a spatial safety isolation, ensuring the safety of operation.

[0035] In one specific embodiment, the mounting frame 11 is provided with multiple pairs of track beams 12 to form guide rails for the plugging and unplugging of the filter module 2. The multiple track beams 12 are distributed at different heights on the mounting frame 11 while maintaining the same height interval, which can meet the installation requirements of the same type of filter module 2 in the same active filter cabinet.

[0036] Each filter module 2 is independently installed on the track beam 12, allowing different filter modules 2 to be independently assembled and disassembled on the mounting frame 11.

[0037] From the perspective of the overall function of the active filter cabinet, and to facilitate the compact wiring of different filter modules 2, a main control frame 13 is set above the mounting frame 11. A wiring gap 15 is left between the main control frame 13 and the mounting frame 11. The cables of different filter modules 2 are gathered through the wiring gap 15 and connected to the main control frame 13 and then connected to the main control module 3. The main control module 3 is installed on the main control frame 13, and is specifically used for the overall control of the active filter cabinet.

[0038] From the perspective of facilitating drawer-type installation, the filter module 2 includes a flat square housing 21. The height of the square housing 21 is less than the height between adjacent track beams 12, so that a heat dissipation gap can be left between the filter modules 2, which facilitates independent heat dissipation of each filter module 2.

[0039] Meanwhile, through the cooperation between the different track beams 12 and the square housing 21 of the filter module 2, a safe isolation of the different filter modules 2 in physical space can be formed, improving operational safety.

[0040] From the perspective of heat dissipation, the square housing 21 includes a heat dissipation plate 22, which is provided with heat dissipation holes 6 that allow air to enter and exit from the outside for cooling. Specifically, the heat dissipation plate 22 is located on the front and rear sides of the filter module 2 in the insertion and removal direction, and is mainly used for drawing in external cooling airflow and expelling internal hot airflow.

[0041] In order to facilitate airflow, a cooling fan 23 is installed inside the square housing 21. The cooling fan 23 is located on the front and rear sides of the square housing 21 and is respectively positioned corresponding to the heat dissipation plate 22.

[0042] Specifically, the heat dissipation risks include the suction fan located on the front side and the exhaust fan located on the rear side. The suction fan and the exhaust fan are respectively set to correspond to the heat dissipation holes 6 on the heat dissipation plate 22, which can ensure the cooling effect to a certain extent.

[0043] In this embodiment, the mounting frame 11 and the main control frame 13 are arranged vertically and vertically, and their corresponding projection areas overlap each other, forming a connecting frame located on the front side of the cabinet 1. An extension frame 14 is provided on the rear side of the mounting frame 11 and the main control frame 13, and the internal space of the extension frame 14 forms a cable heat dissipation compartment 16.

[0044] The expansion frame 14 is located on the rear side of the cabinet 1, which increases the rear space of the cabinet 1. This facilitates the wiring of different filter modules 2 through this space, and improves the heat dissipation effect by increasing the internal space.

[0045] In order to dissipate the heat generated by the different filter modules 2 during operation at the rear of the cabinet 1, the gap between the adjacent track beams 12 is connected to the space of the heat dissipation compartment 16. That is, the rear of the filter module 2 installed on the track beams 12 is exposed to the space of the heat dissipation compartment 16. Combined with the operation of the cooling fan 23, sufficient heat dissipation of the filter module 2 can be guaranteed.

[0046] In another specific embodiment, the front side of the active filter cabinet is provided with a front cabinet door 4, which includes a main control cabinet door 41 and a heat dissipation cabinet door 42, both of which are single-door structures.

[0047] The main control cabinet door 41 is positioned opposite the main control frame 13 and the wiring gap 15, and a main control switch 411 and a main control display screen 412 are installed on the main control cabinet door 41.

[0048] This configuration facilitates independent maintenance of the main control module 3 and the filter module 2, and enables the main control cabinet door 41 to form the main control panel of the active filter cabinet.

[0049] From the perspective of facilitating heat dissipation of different filter modules 2, the heat dissipation cabinet door 42 is positioned opposite the mounting frame 11, and heat dissipation holes 6 are provided in sections on the heat dissipation cabinet door 42, with the heat dissipation holes 6 in sections corresponding to the installation positions of the filter modules 2.

[0050] Combined with the cooling fan 23 installed on the filter module 2, it can effectively draw external cooling air into the cabinet 1, cool the filter module 2, and then guide it into the hub cooling compartment 16, and finally exhaust it outward through the rear cabinet door 5.

[0051] Specifically, the active filter cabinet is provided with a rear cabinet door 5. The rear cabinet door 5 has a double door structure. Each rear cabinet door 5 is provided with a heat dissipation hole 6, which can facilitate the dissipation of heat inside the cabinet 1. Furthermore, the combination of the heat dissipation hole 6 on the rear cabinet door 5 with the front heat dissipation cabinet door 42 and the cooling fan 23 can form a good airflow effect, maintaining efficient cooling of the filter module 2.

[0052] The active filter cabinet of this utility model belongs to the power quality management device in power system equipment. Specifically, it includes an active filter cabinet with a pull-out modular structure. By improving the internal installation method of the cabinet 1, it achieves the technical effects of rapid maintenance, optimized heat dissipation, and compact space layout.

[0053] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0054] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An active filter cabinet, characterized in that, The system includes a cabinet and multiple filter modules installed inside the cabinet. The cabinet has an internal mounting frame, and the multiple filter modules are installed at intervals on the mounting frame. The mounting frame includes multiple guide rails, and the filter module is pluggably mounted on the mounting frame along the guide rails.

2. The active filter cabinet according to claim 1, characterized in that, The mounting frame is provided with multiple pairs of track beams to form guide rails for the plugging and unplugging of the filter modules, and each filter module is independently mounted on the track beam.

3. The active filter cabinet according to claim 2, characterized in that, A main control frame is provided above the mounting frame, and a wiring gap is left between the main control frame and the mounting frame. A main control module is installed on the main control frame.

4. The active filter cabinet according to claim 2, characterized in that, The filtering module includes a flat, square housing. The height of the square housing is less than the height between adjacent track beams, so that a heat dissipation gap can be left between the filtering modules.

5. The active filter cabinet according to claim 4, characterized in that, The square housing includes a heat dissipation plate, which is disposed on the front and rear sides of the filter module in the insertion and removal direction; A cooling fan is installed inside the square housing. The cooling fan is located on the front and rear sides of the square housing and is respectively positioned corresponding to the heat dissipation plate.

6. The active filter cabinet according to claim 3, characterized in that, An expansion frame is provided on the rear side of the mounting frame and the main control frame, and the internal space of the expansion frame forms a hub heat dissipation compartment.

7. The active filter cabinet according to claim 6, characterized in that, The gap between adjacent track beams is connected to the space of the heat dissipation compartment.

8. The active filter cabinet according to claim 6, characterized in that, The active filter cabinet is provided with a front cabinet door, which includes a main control cabinet door and a heat dissipation cabinet door, both of which are single-door structures. The main control cabinet door is positioned opposite to the main control frame and the wiring gap, and a master control switch and a master control display screen are installed on the main control cabinet door.

9. The active filter cabinet according to claim 8, characterized in that, The heat dissipation cabinet door is positioned opposite the mounting frame, and heat dissipation holes are provided in sections on the heat dissipation cabinet door, with the heat dissipation holes corresponding to the installation positions of the filter modules.

10. The active filter cabinet according to claim 9, characterized in that, The active filter cabinet is provided with a rear cabinet door, which has a double door structure and each rear cabinet door is provided with heat dissipation holes.