Self-cleaning filter screen for excitation cabinet
By designing a self-cleaning filter, the filter is automatically cleaned using reverse airflow and a rotating cleaning component, solving the problem of reduced air intake efficiency caused by dust accumulation. This achieves efficient cleaning and low-cost maintenance, ensuring the stable operation of the excitation disk cabinet.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THREE GORGES JINSHAJIANG CHUANYUN HYDROPOWER DEV CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-21
AI Technical Summary
The existing exciter disk cabinet filter screen has reduced air intake efficiency due to dust accumulation during use, which affects the heat dissipation and operational stability of the equipment. In addition, frequent disassembly and reassembly of the filter screen increases maintenance costs and the risk of component damage.
Design a self-cleaning filter that automatically cleans itself by using reverse airflow and a rotating cleaning component, and collects dust using a dust collection component, thus avoiding manual disassembly.
It achieves efficient self-cleaning of the filter, reduces maintenance workload and costs, avoids damage to internal components during disassembly and assembly, and ensures stable operation of the equipment.
Smart Images
Figure CN224524268U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of power system technology, and in particular relates to a self-cleaning filter for excitation disk cabinet. Background Technology
[0002] In power systems, excitation disk cabinets are key equipment, and their stable operation plays an important role in power supply. To prevent dust, impurities and other contaminants from entering the cabinet and affecting its performance, filters are usually installed at the cabinet's air inlet. However, the applicant discovered that the existing filters have obvious defects during use. For example, as the usage time increases, a large amount of dust will accumulate on the surface of the filter, resulting in reduced air intake efficiency, which in turn affects the heat dissipation and normal operation of the equipment inside the cabinet. In order to ensure the normal operation of the cabinet, the filter needs to be frequently disassembled and replaced, which not only increases the workload and maintenance costs of maintenance personnel, but also poses a risk of damaging the internal components of the cabinet during disassembly and assembly. At the same time, frequent disassembly and assembly will also reduce the sealing of the cabinet, making it difficult to meet the high reliability and stability requirements of the power system. Utility Model Content
[0003] The purpose of this invention is to overcome the defects of the prior art and provide a self-cleaning filter for disk cabinets. When the filter needs to be cleaned, the intake fan is rotated in reverse to achieve reverse air blowing. This works in conjunction with the rotating cleaning component to efficiently clean the filter. At the same time, the dust collection component collects the dust on the filter. This eliminates the need for frequent manual disassembly and assembly of the filter, greatly reducing the workload and maintenance costs for maintenance personnel. It also avoids the risk of damaging the internal components of the cabinet during disassembly and assembly.
[0004] The objective of this utility model is achieved through the following technical solution: A self-cleaning filter for an excitation disk cabinet includes a filter frame fixed to the surface of the excitation disk cabinet, a filter screen disposed within the filter frame, and an air guide shroud disposed inside the excitation disk cabinet, with an air intake fan installed inside the air guide shroud. The filter further comprises: Rotary cleaning assembly, used for cleaning the filter screen; Dust collection component, used to collect dust; The rotating cleaning assembly includes a motor frame mounted on the filter frame, a cleaning motor mounted on the motor frame, a brush frame connected to the output shaft of the cleaning motor, and a brush mounted on the brush frame that contacts the surface of the filter screen. The dust collection assembly includes a gas collection hood mounted on the filter frame, the gas collection hood being located below the rotating cleaning assembly, and a collection component connected to the bottom of the gas collection hood. In this embodiment, when the dust and impurities on the filter screen are excessive and affect the heat dissipation and normal operation of the internal equipment of the cabinet, the air intake fan inside the air guide shroud is controlled to rotate in reverse to achieve reverse airflow, so that air is sent from inside the air guide shroud to the outside, allowing the dust and impurities on the filter screen surface to fall off. At the same time, the brush holder of the rotating cleaning component slides cyclically along the outer surface of the guide rail under the drive of the cleaning motor. As the brush holder moves, the brush at the bottom of the brush holder completes the cleaning of the entire filter screen surface, thus efficiently completing the filter screen self-cleaning operation. Meanwhile, the dust collection component located below the rotating cleaning component temporarily collects and stores the impurities and dust that fall off the filter screen surface, thus eliminating the need for frequent manual disassembly and assembly of the filter screen, greatly reducing the workload and maintenance costs of maintenance personnel, and also avoiding the risk of damage to the internal components of the cabinet during disassembly and assembly.
[0005] In one embodiment, a guide rail is provided on the inner side of the motor frame, and a guide groove is provided at the end of the brush holder. The guide groove is installed on the guide rail, and the brush holder can slide along the outer surface of the guide rail under the drive of the cleaning motor. In this embodiment, the brush holder is limited by the guide rail set above the filter screen, so that the brush holder can rotate stably and cyclically above the filter screen under the action of the cleaning motor. This ensures that the brush installed at the bottom of the brush holder can fully contact the surface of the filter screen and clean it stably and cyclically, thus ensuring long-term cleaning effect.
[0006] In one embodiment, the dust collection assembly further includes a collecting fan installed inside the collecting hood; In this embodiment, the dust and impurities that have detached from the filter screen are guided by the air collecting fan and collected into the filter bag along the air collecting hood, thereby further improving the self-cleaning effect and efficiency of the filter screen.
[0007] In one embodiment, the collecting element is a filter bag, the top of which is connected to the bottom of the gas collection hood.
[0008] In one embodiment, the top of the filter bag is provided with a magnetic ring that is magnetically connected to the bottom of the gas collecting hood; This implementation method allows operators to quickly install and remove filter bags, ensuring that the normal operation of the excitation disk cabinet is not affected when dealing with dust and impurities inside.
[0009] In one embodiment, a protective net is also provided at the end of the flow deflector.
[0010] In one embodiment, the cleaning motor is a servo motor.
[0011] In one embodiment, the motor frame is welded and fixed to the surface of the filter frame, and the cleaning motor is disposed in the middle of the motor frame.
[0012] In one embodiment, the guide rail is located above the filter screen, the brush is mounted at the bottom of the brush holder, and the end of the brush away from the brush holder can contact the filter screen.
[0013] In one embodiment, the gas collecting hood is further provided with a fixing block for mounting the gas collecting fan.
[0014] The beneficial effects of this utility model are as follows: When the filter needs cleaning, the intake fan is rotated in reverse to achieve reverse airflow. This works in conjunction with the rotating cleaning component. Driven by the cleaning motor, the brush holder slides along the outer surface of the guide rail. As the brush holder slides, the brushes at the bottom of the brush holder clean the entire filter, thus efficiently self-cleaning the filter. At the same time, the dust collection fan in the dust collection component absorbs dust into the filter bag. The magnetic connection allows operators to quickly replace the filter bag, eliminating the need for frequent manual disassembly and assembly of the filter. This significantly reduces the workload and maintenance costs for maintenance personnel and also avoids the risk of damage to internal components of the control panel during disassembly and assembly. Attached Figure Description
[0015] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings. Wherein: Figure 1 A schematic diagram of the structure of this utility model is shown; Figure 2 Showing Figure 1 A magnified schematic diagram of the local structure at point A; Figure 3 Showing Figure 1 A magnified view of the structure at point B in the middle; In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.
[0016] Figure label: 1-Filter frame, 2-Filter, 3-Guide shroud, 4-Protective net, 5-Intake fan, 6-Motor frame, 7-Servo motor, 8-Brush holder, 9-Brush, 10-Guide rail, 11-Guide groove, 12-Gas collection shroud, 13-Gas collection fan, 14-Filter bag, 15-Magnetic ring. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] This utility model provides a self-cleaning filter for disk storage cabinets, such as... Figures 1 to 3 As shown, the device includes a filter frame 1 fixed to the surface of the excitation disk cabinet, a filter 2 disposed inside the filter frame 1, and a flow guide shroud 3 disposed inside the excitation disk cabinet, with an air intake fan 5 installed inside the flow guide shroud 3. The device is characterized by further comprising: A rotating cleaning component is used to clean filter 2; Dust collection component, used to collect dust; The rotating cleaning assembly includes a motor frame 6 mounted on the filter frame 1, a cleaning motor mounted on the motor frame 6, a brush frame 8 connected to the output shaft of the cleaning motor, and a brush 9 mounted on the brush frame 8 that contacts the surface of the filter screen 2. The dust collection assembly includes a gas collection hood 12 mounted on the filter frame 1, the gas collection hood 12 being located below the rotating cleaning assembly, and a collection component connected to the bottom of the gas collection hood 12. Specifically, such as Figure 2 As shown, a guide rail 10 is also provided on the inner side of the motor frame 6, and a guide groove 11 is provided at the end of the brush holder 8. The guide groove 11 is installed on the guide rail 10, and the brush holder 8 can slide along the outer surface of the guide rail 10 under the drive of the cleaning motor. In this embodiment, the filter screen 2 installed in the filter frame 1 is used to filter the air inlet of the disk cabinet to prevent dust and impurities from entering the cabinet and affecting the performance of the equipment. When there is a lot of dust and impurities on the filter screen 2, affecting the heat dissipation and normal operation of the equipment inside the cabinet, the cleaning and dust collection of the filter screen 2 can be automatically completed by the rotating cleaning component and the dust collection component. That is, the air intake fan 5 in the guide shroud 3 is controlled to rotate in reverse to achieve reverse air blowing, so that the air is sent from inside the guide shroud 3 to the outside, so that the dust and impurities on the surface of the filter screen 2 can be dislodged. In conjunction with the rotating cleaning component, the brush holder 8 of the rotating cleaning component slides cyclically along the outer surface of the guide rail 10 under the drive of the cleaning motor. As the brush holder 8 moves, the brush 9 at the bottom of the brush holder 8 completes the cleaning of the entire surface of the filter screen 2, thus efficiently completing the self-cleaning operation of the filter screen 2. At the same time, the dust collection component located below the rotating cleaning component temporarily collects and stores the impurities and dust that fall off the surface of the filter screen 2. This eliminates the need for frequent manual disassembly and assembly of the filter screen 2, greatly reducing the workload and maintenance costs of maintenance personnel, and also avoiding the risk of damage to the internal components of the cabinet during disassembly and assembly.
[0019] Specifically, such as Figure 2 As shown, the guide rail 10 is located above the filter screen 2, and the brush 9 is installed at the bottom of the brush holder 8, with the end of the brush 9 away from the brush holder 8 able to contact the filter screen 2. That is, the guide rail 10 set above the filter screen 2 limits the brush holder 8, so that the brush holder 8 can rotate cyclically above the filter screen 2 under the action of the cleaning motor. In other words, the brush 9 installed at the bottom of the brush holder 8 can fully contact the surface of the filter screen 2 and move cyclically, ensuring the cleaning effect.
[0020] Furthermore, such as Figure 3As shown, the dust collection assembly also includes a collecting fan 13 installed inside the collecting hood 12, and the collecting component is a filter bag 14. The top of the filter bag 14 is connected to the bottom of the collecting hood 12. That is, the collecting fan 13 collects the dust and impurities that have detached from the filter screen 2 along the collecting hood 12 into the filter bag 14, thereby further improving the self-cleaning effect and efficiency of the filter screen 2.
[0021] In one embodiment, the top of the filter bag 14 is provided with a magnetic ring 15 that is magnetically connected to the bottom of the gas collecting hood 12, so that the operator can quickly replace the filter bag 14 through the magnetic connection.
[0022] In one embodiment, a protective net 4 is provided at the end of the flow guide shroud 3, the cleaning motor is a servo motor 7, the motor frame 6 is welded and fixed to the surface of the filter frame 1, the cleaning motor is located in the middle of the motor frame 6, and a fixing block for the air collecting fan 13 is provided inside the air collecting shroud 12. That is, the motor frame 6 is welded and fixed to the filter frame 1 to maintain its stability, while the servo motor 7, which is the cleaning motor, is installed in the middle of the filter frame 1, so that the brush holder 8 can use the midpoint as the center and drive the brush 9 at its bottom to clean the entire surface of the filter 2 along the guide rail 10, thus ensuring the cleaning effect.
[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., 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 this utility model and 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 utility model.
[0024] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.
Claims
1. A self-cleaning filter for an excitation disk cabinet, comprising a filter frame fixed to the surface of the excitation disk cabinet, a filter being disposed within the filter frame, and an air guide shroud being disposed inside the excitation disk cabinet, wherein an air intake fan is installed within the air guide shroud, characterized in that, Also includes: Rotary cleaning assembly, used for cleaning the filter screen; Dust collection component, used to collect dust; The rotating cleaning assembly includes a motor frame mounted on the filter frame, a cleaning motor mounted on the motor frame, a brush frame connected to the output shaft of the cleaning motor, and a brush mounted on the brush frame that contacts the surface of the filter screen. The dust collection assembly includes a gas collection hood mounted on the filter frame, the gas collection hood being located below the rotating cleaning assembly, and a collection component connected to the bottom of the gas collection hood.
2. The self-cleaning filter for a magnetic disk cabinet according to claim 1, characterized in that, The inner side of the motor frame is also provided with a guide rail, and the end of the brush holder is provided with a guide groove. The guide groove is installed on the guide rail, and the brush holder can slide along the outer surface of the guide rail under the drive of the cleaning motor.
3. The self-cleaning filter for a magnetic disk cabinet according to claim 1, characterized in that, The dust collection assembly also includes a collecting fan installed inside the collecting hood.
4. The self-cleaning filter for a magnetic disk cabinet according to claim 1, characterized in that, The collecting component is a filter bag, and the top of the filter bag is connected to the bottom of the gas collection hood.
5. A self-cleaning filter for a magnetic disk cabinet according to claim 4, characterized in that, The top of the filter bag is provided with a magnetic ring that is magnetically connected to the bottom of the gas collecting hood.
6. A self-cleaning filter for a magnetic disk cabinet according to claim 1, characterized in that, The end of the flow guide is also provided with a protective net.
7. A self-cleaning filter for a magnetic disk cabinet according to claim 1, characterized in that, The cleaning motor is a servo motor.
8. A self-cleaning filter for a magnetic disk enclosure according to claim 1 or 7, characterized in that, The motor frame is welded and fixed to the surface of the filter frame, and the cleaning motor is located in the middle of the motor frame.
9. A self-cleaning filter for a magnetic disk cabinet according to claim 2, characterized in that, The guide rail is located above the filter screen, and the brush is mounted at the bottom of the brush holder with one end of the brush away from the brush holder able to contact the filter screen.
10. A self-cleaning filter for a magnetic disk cabinet according to claim 3, characterized in that, The gas collection hood is also equipped with a fixing block for installing the gas collection fan.