A remotely monitorable, maintenance-friendly compensation filter
By incorporating structural designs such as remote monitoring modules and positioning columns, the problem of difficult maintenance of compensation filters in dusty environments has been solved, enabling remote monitoring and convenient maintenance of the equipment, extending the service life of capacitors and reactors, and reducing operation and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN SPINCO ELECTRICAL EQUIPMENT CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-12
AI Technical Summary
Existing compensation filters are inconvenient to disassemble and maintain in dusty environments, leading to dust accumulation on cooling fan blades, reduced airflow, prolonged high-temperature operation of equipment, shortened lifespan of capacitors and reactors, and increased equipment replacement costs.
A compensation filter that can be remotely monitored and is easy to maintain was designed. Data is transmitted in real time through a remote monitoring module. Combined with a positioning column, positioning groove and threaded rod structure, the exhaust fan can be quickly disassembled and installed. It is equipped with a removable filter screen and maintenance toolbox to simplify the maintenance process.
It enables remote monitoring and convenient maintenance of equipment, avoids the decrease in heat dissipation efficiency caused by dust accumulation, extends the life of core components, and reduces operation and maintenance costs.
Smart Images
Figure CN224355831U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compensation filter technology, specifically a compensation filter that can be remotely monitored and is easy to maintain. Background Technology
[0002] Compensation filters are key devices in power systems used to improve power quality. Their main functions are to suppress harmonic interference in the power grid and compensate for reactive power, thereby reducing line losses and improving power supply stability. They are widely used in power consumption scenarios such as industrial production lines, new energy power plants, and commercial complexes. For example, in industrial plants with many nonlinear loads such as electric arc furnaces and frequency converters, compensation filters can reduce the harmonic distortion rate from over 15% to below 5%, avoiding harmonic interference to precision equipment. In grid-connected systems of new energy sources such as photovoltaics and wind power, they can quickly compensate for reactive power fluctuations, ensuring that the grid voltage remains stable within the allowable range of ±2%.
[0003] For example, Chinese utility model patent application number 202420037528.5 discloses a modular automatic mixing compensation filter cabinet, which is equipped with a dustproof installation unit. During the operation of the filter cabinet, the dustproof plate is removed, and the cooling fans on both side walls operate to ventilate and dissipate heat from the cabinet. The filter screen can filter impurities in the circulating air. When placing it, the dustproof plate is inserted into the concave frame along the groove to prevent dust from entering and affecting the service life of electrical components. However, this device still has certain defects.
[0004] It is inconvenient to disassemble and maintain the cooling fan. In dusty industrial environments, the fan blades accumulate a lot of dust, which leads to a decrease in airflow. If disassembly is difficult and cleaning is not timely, the filter will be in a high-temperature operating state for a long time, which may shorten the service life of capacitors and reactors and significantly increase the equipment replacement cost.
[0005] Therefore, we propose a compensation filter that can be remotely monitored and is easy to maintain, in order to solve the problems mentioned above. Utility Model Content
[0006] The purpose of this invention is to provide a compensation filter that can be remotely monitored and is easy to maintain, in order to solve the problems mentioned in the background art, such as the inconvenience of disassembling and maintaining the cooling fan in the current market, the accumulation of dust on the fan blades in dusty industrial environments, which leads to a decrease in air volume, and the fact that if disassembly is difficult and cleaning is not timely, the filter will be in a high-temperature operating state for a long time, which may shorten the service life of capacitors and reactors and significantly increase the equipment replacement cost.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a compensation filter that can be remotely monitored and is easy to maintain, comprising a filter housing and a fan sleeve, wherein a parts mounting bracket is installed inside the filter housing, and a cable management block is installed inside the filter housing;
[0008] The filter housing has a mounting slot on the right side, and a filter screen is installed on the left side of the mounting slot. Positioning posts are installed on both the upper and lower sides of the right side of the mounting slot, and a fan sleeve is provided on the right side of the mounting slot. An exhaust fan is installed inside the fan sleeve.
[0009] Connecting plates are installed on both the left and right sides of the fan sleeve. An abutment plate and a support plate are installed on the right side of the filter housing. A maintenance toolbox is installed above the support plate. A threaded rod is installed on the support plate, and a positioning frame is installed below the threaded rod via a bearing seat.
[0010] Preferably, the cable management block has cable management grooves on both the left and right sides of its front surface, and an elastic plate is mounted on the front surface of the cable management block via a damping shaft. U-shaped grooves are provided on the lower left side and upper right side of the elastic plate. The position of the cable management block is set according to the internal component layout of the filter housing.
[0011] With the above structural design, the cable management block's cable management groove is used to organize cables and avoid mess; the elastic plate rotates through a damping shaft, and its U-shaped groove can be inserted into a threaded post, which, together with the limit nut, fixes the cable and prevents it from loosening. The position of the cable management block is adapted to the layout of internal parts, improving the rationality of wiring. At the same time, the filter housing can be opened with cable routing holes as needed.
[0012] Preferably, the filter in the filter housing is connected to the remote monitoring module, and threaded posts are installed on both the left and right sides of the cable management block, with limit nuts installed on each threaded post, and U-shaped grooves are sleeved on the threaded posts.
[0013] With the above structural design, the filter can be remotely monitored for its operating status through a remote monitoring module; the threaded posts on both sides of the cable management block cooperate with the U-shaped groove of the elastic plate, and tightening the limit nut can press the elastic plate to achieve a stable fixation of the cable, which is convenient for subsequent cable inspection and maintenance.
[0014] Preferably, the filter screen is detachably connected to the inner wall of the filter housing, and a ventilation slot is provided on the upper right side of the filter housing, and a filter assembly is provided on the ventilation slot.
[0015] With the above structural design, the filter screen can be detachably installed on the left side of the mounting slot for easy regular cleaning or replacement, preventing dust blockage from affecting heat dissipation; the filter assembly in the ventilation slot on the right side of the filter housing purifies the incoming air and protects the internal components from contamination.
[0016] Preferably, the fan sleeve has positioning grooves on both the upper and lower right sides, and the center line of the positioning groove coincides with the center line of the positioning post.
[0017] With the above structural design, the positioning groove of the fan sleeve is aligned and snapped into place with the positioning post of the mounting groove, enabling quick positioning and installation of the exhaust fan. This ensures accurate connection between the fan sleeve and the filter housing, avoiding installation deviations that could affect heat dissipation efficiency.
[0018] Preferably, there are two abutment plates, and the abutment plates abut against the connecting plate on the fan sleeve.
[0019] With the above structural design, the two abutment plates press against the connecting plate of the fan sleeve from both sides, restricting the displacement of the fan sleeve. Combined with the positioning of the positioning column and the positioning groove, this enhances the stability of the exhaust fan installation.
[0020] Preferably, the positioning frame and the support plate are connected by a guide telescopic rod, and the lower end of the positioning frame is engaged with the through groove on the connecting plate.
[0021] With the above structural design, the rotating threaded rod drives the positioning frame to rise and fall along the guide telescopic rod. The lower end of the positioning frame is inserted into the through groove of the connecting plate, realizing the quick fixing or loosening of the fan sleeve and simplifying the disassembly and maintenance process of the exhaust fan.
[0022] Compared with the prior art, the beneficial effects of this utility model are: the compensation filter that can be remotely monitored and is easy to maintain:
[0023] 1. Combining remote monitoring with convenient maintenance enhances equipment reliability: The filter transmits real-time operating status data through a remote monitoring module, allowing maintenance personnel to remotely monitor equipment conditions; the exhaust fan is quickly positioned using positioning columns and positioning slots, and rotating the threaded rod allows the positioning frame to detach from the connecting plate. Combined with the release of the limit on the abutment plate, this enables quick disassembly and cleaning of the exhaust fan, preventing a decrease in heat dissipation efficiency due to dust accumulation and extending the service life of core components such as capacitors and reactors.
[0024] 2. Standardized internal cabling and integrated maintenance tools reduce operation and maintenance costs: The cable management block's cable management channels organize cables, and the flexible plate uses U-shaped grooves and threaded posts to fix cables, avoiding the difficulty of maintenance caused by messiness; the maintenance toolbox on the support plate integrates maintenance tools, eliminating the need to carry them separately, and combined with the removable filter, it greatly simplifies the maintenance process of internal components and heat dissipation system, reducing operation and maintenance time and labor costs. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall main structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the internal structure of the filter housing of this utility model;
[0027] Figure 3 This is a schematic diagram of the structure of the elastic plate of this utility model when the limiting position is released;
[0028] Figure 4 This is a schematic diagram of the structure of the exhaust fan of this utility model during disassembly;
[0029] Figure 5 This is a schematic diagram of the installation structure of the exhaust fan of this utility model.
[0030] In the diagram: 1. Filter housing; 2. Parts mounting bracket; 3. Cable management block; 4. Cable management groove; 5. Damping shaft; 6. Elastic plate; 7. U-shaped groove; 8. Threaded post; 9. Limit nut; 10. Mounting groove; 11. Filter screen; 12. Positioning post; 13. Fan sleeve; 14. Positioning groove; 15. Exhaust fan; 16. Connecting plate; 17. Abutment plate; 18. Support plate; 19. Maintenance toolbox; 20. Threaded rod; 21. Positioning frame; 22. Guide telescopic rod. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Please see Figures 1-5This utility model provides a technical solution: a compensation filter that can be remotely monitored and is easy to maintain, including a filter housing 1, a parts mounting bracket 2, a cable management block 3, a cable management groove 4, a damping shaft 5, an elastic plate 6, a U-shaped groove 7, a threaded post 8, a limit nut 9, a mounting groove 10, a filter screen 11, a positioning post 12, a fan sleeve 13, a positioning groove 14, an exhaust fan 15, a connecting plate 16, abutment plate 17, a support plate 18, a maintenance toolbox 19, a threaded rod 20, a positioning frame 21, and a guide telescopic rod 22. The parts mounting bracket 2 is installed inside the filter housing 1, and the cable management block 3 is installed inside the filter housing 1. Cable management grooves 4 are opened on both the left and right sides of the front surface of the cable management block 3, and an elastic plate 6 is installed on the front surface of the cable management block 3 through the damping shaft 5. U-shaped grooves 7 are opened on the lower left and upper right sides of the elastic plate 6. The position of the cable management block 3 is... Based on the internal component layout of the filter housing 1, the cable management block 3 has cable management grooves 4 for organizing cables and avoiding tangles. The elastic plate 6 rotates via a damping shaft 5, and its U-shaped groove 7 can engage with the threaded post 8, which, together with the limit nut 9, secures the cable and prevents it from loosening. The position of the cable management block 3 is adapted to the internal component layout, improving the rationality of the wiring. At the same time, the filter housing 1 can be provided with cable routing holes as needed. The filter in the filter housing 1 is connected to the remote monitoring module. Threaded posts 8 are installed on both the left and right sides of the cable management block 3, and limit nuts 9 are installed on each of the threaded posts 8. The U-shaped groove 7 is fitted onto the threaded post 8. The filter can be remotely monitored for its operating status through the remote monitoring module. The threaded posts 8 on both sides of the cable management block 3 cooperate with the U-shaped groove 7 of the elastic plate 6. Tightening the limit nut 9 can press the elastic plate 6 to achieve a stable fixation of the cable, which is convenient for later cable maintenance and organization.
[0033] A mounting slot 10 is provided on the right side of the filter housing 1, and a filter screen 11 is installed on the left side of the mounting slot 10. The filter screen 11 is detachably connected to the inner wall of the filter housing 1. A ventilation slot is provided on the upper right side of the filter housing 1, and a filter assembly is provided on the ventilation slot. The filter screen 11 is detachably installed on the left side of the mounting slot 10 for easy regular cleaning or replacement, preventing dust blockage from affecting heat dissipation. The filter assembly of the ventilation slot on the right side of the filter housing 1 purifies the incoming air and protects the internal components from contamination. Positioning posts 12 are installed on both the upper and lower right sides of the mounting slot 10, and a fan sleeve 13 is provided on the right side of the mounting slot 10. An exhaust fan 15 is installed inside the fan sleeve 13. Positioning slots 14 are provided on both the upper and lower right sides of the fan sleeve 13. The center line of the positioning slot 14 coincides with the center line of the positioning post 12. The positioning slot 14 of the fan sleeve 13 is aligned and engaged with the positioning post 12 of the mounting slot 10, realizing the quick positioning and installation of the exhaust fan 15, ensuring accurate connection between the fan sleeve 13 and the filter housing 1, and avoiding installation deviations that affect heat dissipation efficiency.
[0034] Connecting plates 16 are installed on both the left and right sides of the fan sleeve 13. An abutment plate 17 and a support plate 18 are installed on the right side of the filter housing 1. Two abutment plates 17 are provided, and they abut against the connecting plates 16 on the fan sleeve 13. The two abutment plates 17 press firmly against the connecting plates 16 on both sides of the fan sleeve 13, limiting the displacement of the fan sleeve 13. Combined with the positioning of the positioning post 12 and the positioning groove 14, this enhances the stability of the exhaust fan 15 installation. A maintenance toolbox 1 is installed above the support plate 18. 9. A threaded rod 20 is installed on the support plate 18, and a positioning frame 21 is installed below the threaded rod 20 through a bearing seat. The positioning frame 21 is connected to the support plate 18 through a guide telescopic rod 22. The lower end of the positioning frame 21 is engaged with the through groove on the connecting plate 16. Rotating the threaded rod 20 drives the positioning frame 21 to rise and fall along the guide telescopic rod 22. The lower end of the positioning frame 21 is engaged with the through groove of the connecting plate 16, realizing the quick fixing or loosening of the fan sleeve 13 and simplifying the disassembly and maintenance process of the exhaust fan 15.
[0035] Working principle: When using this compensation filter that can be remotely monitored and is easy to maintain, first, install the core components on the parts mounting bracket 2 inside the filter housing 1. The cable management slot 4 of the cable management block 3 is used to sort the connecting cables. Rotate the elastic plate 6 through the damping shaft 5 so that the U-shaped groove 7 of the elastic plate 6 fits onto the threaded posts 8 on both sides of the cable management block 3. Tighten the limit nut 9 to press the elastic plate 6, so as to achieve a stable fixation of the cables.
[0036] A removable filter screen 11 is installed on the left side of the mounting groove 10 on the right side of the filter housing 1 to filter the incoming air. The positioning post 12 on the right side of the mounting groove 10 is aligned and engaged with the positioning groove 14 of the fan sleeve 13 to achieve the positioning and installation of the exhaust fan 15. The connecting plates 16 on both sides of the fan sleeve 13 abut against the abutting plate 17 of the filter housing 1. The threaded rod 20 on the rotating support plate 18 drives the positioning frame 21 to descend along the guide telescopic rod 22, so that the lower end of the positioning frame 21 is engaged in the through groove of the connecting plate 16, thus completing the fixation of the exhaust fan 15. When the exhaust fan 15 is working, it achieves heat dissipation inside the housing.
[0037] The filter in the filter housing 1 is connected to the remote monitoring module, enabling remote transmission of operating status data. During maintenance, tools are retrieved from the toolbox 19 on the support plate 18, and the threaded rod 20 is rotated in the reverse direction to disengage the positioning frame 21 from the connecting plate 16, allowing the fan sleeve 13 and exhaust fan 15 to be removed for cleaning. Simultaneously, the filter screen 11 can be removed for cleaning or replacement, and the elastic plate 6 can be opened to organize the internal cables. This integrated system achieves coordinated operation of remote monitoring and convenient maintenance, thus completing a series of tasks. Content not described in detail in this specification constitutes prior art known to those skilled in the art.
[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A compensation filter that is remotely monitored and easy to maintain, comprising a filter housing (1) and a fan sleeve (13), wherein a parts mounting bracket (2) is installed inside the filter housing (1), characterized in that: The filter housing (1) is equipped with a cable management block (3); The filter housing (1) has an installation groove (10) on the right side, and a filter screen (11) is installed on the left side of the installation groove (10). Positioning posts (12) are installed on both the upper and lower sides of the right side of the installation groove (10), and a fan sleeve (13) is provided on the right side of the installation groove (10). An exhaust fan (15) is installed inside the fan sleeve (13). Connecting plates (16) are installed on both the left and right sides of the fan sleeve (13). An abutment plate (17) and a support plate (18) are installed on the right side of the filter housing (1). A maintenance toolbox (19) is installed above the support plate (18). A threaded rod (20) is installed on the support plate (18). A positioning frame (21) is installed below the threaded rod (20) through a bearing seat.
2. The compensation filter that can be remotely monitored and is easy to maintain according to claim 1, characterized in that: The cable management block (3) has cable management grooves (4) on both the left and right sides of its front surface, and an elastic plate (6) is installed on the front surface of the cable management block (3) through a damping shaft (5). U-shaped grooves (7) are provided on the lower left and upper right sides of the elastic plate (6). The position of the cable management block (3) is set according to the internal component layout of the filter housing (1).
3. The compensation filter that can be remotely monitored and is easy to maintain according to claim 2, characterized in that: The filter in the filter housing (1) is connected to the remote monitoring module. Threaded posts (8) are installed on both the left and right sides of the cable management block (3), and limit nuts (9) are installed on the threaded posts (8). U-shaped grooves (7) are sleeved on the threaded posts (8).
4. The compensation filter that can be remotely monitored and is easy to maintain according to claim 1, characterized in that: The filter screen (11) is detachably connected to the inner wall of the filter housing (1). A ventilation slot is provided on the upper right side of the filter housing (1), and a filter assembly is provided on the ventilation slot.
5. The compensation filter that can be remotely monitored and is easy to maintain according to claim 1, characterized in that: The fan sleeve (13) has positioning grooves (14) on both the upper and lower right sides, and the center line of the positioning groove (14) coincides with the center line of the positioning post (12).
6. The compensation filter that can be remotely monitored and is easy to maintain according to claim 1, characterized in that: Two abutment plates (17) are provided, and the abutment plates (17) abut against the connecting plate (16) on the fan sleeve (13).
7. The compensation filter that can be remotely monitored and is easy to maintain according to claim 1, characterized in that: The positioning frame (21) and the support plate (18) are connected by a guide telescopic rod (22), and the lower end of the positioning frame (21) is engaged with the through groove on the connecting plate (16).