Dustproof device at air inlet of SVG device

Abstract

The utility model discloses a kind of dust prevention devices at air inlet of SVG device, belong to the dust prevention technology technical field of SVG, comprising: coarse filter component, set in SVG device interior, one end of the coarse filter component is connected with the air inlet of SVG device;Fine filter component, one end thereof is connected with the other end of the coarse filter component;Size adjusting component, the size adjusting component is connected with the fine filter component;By setting coarse filter component, large-particle foreign matter in air can be blocked, the effect of preliminary air purification is realized, air then passes through the fine filter component set, the effect of small-particle foreign matter in air after coarse filtration can be intercepted, further improve the cleanliness of intake air, and by setting size adjusting component, the effect that the size of air inlet of fine filter plate can be flexibly adjusted according to different scene dust concentration, under high dust environment, filter interception capacity can be enhanced, filter screen blockage is reduced, under low dust environment, ventilation resistance can be reduced, and equipment heat dissipation efficiency is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of dustproof technology for SVG, specifically a dustproof device for the air inlet of an SVG device. Background Technology

[0002] As a key device for reactive power compensation and harmonic control in power systems, SVG devices have high requirements for the cleanliness of their internal power modules, cooling fans, and other components. If dust, lint, or other impurities in the air enter the SVG device, they can easily adhere to the surface of the power modules, leading to reduced heat dissipation efficiency and even causing malfunctions such as reduced insulation performance and module burnout.

[0003] Existing SVG devices typically use fixed single or double-layer filters with fixed filtration accuracy. They cannot be adaptively adjusted according to the differences in dust concentration in different usage scenarios. This results in insufficient filtration level in high-dust environments, poor impurity interception effect, and frequent clogging. In low-dust clean environments, the excessively high filtration accuracy leads to increased ventilation resistance and affects the heat dissipation efficiency of the equipment. Utility Model Content

[0004] To address the problems of existing technologies, this utility model provides a dustproof device for the air inlet of an SVG device, comprising: A coarse filter assembly is installed inside the SVG device. One end of the coarse filter assembly is connected to the air inlet of the SVG device to block large particles of foreign matter in the air from entering the SVG device. A fine filter assembly, one end of which is connected to the other end of the coarse filter assembly, is used to block small particulate matter in the air delivered from the coarse filter assembly from entering the SVG device. A size adjustment component, connected to the fine filter component, is used to change the airflow entering the SVG device from the fine filter component.

[0005] Furthermore, the coarse filter component is a metal plate, and the surface of the metal plate is arrayed with filter holes.

[0006] Furthermore, the fine filtration assembly includes: a frame, a fine filter plate, and a flexible filter mechanism; The coarse filter component is embedded in the frame, and one end of it is flush with one end of the frame on the same side. The flexible filtration mechanism is connected to the other end of the frame, and a gap is left between it and the coarse filtration component; The fine filter plate is located between the flexible filter mechanism and the coarse filter assembly, and the periphery of the fine filter assembly is connected to the inner wall of the frame. The size adjustment component is connected to the fine filter plate and is used to adjust the size of the air inlet hole on the fine filter plate.

[0007] Furthermore, the flexible filtration mechanism includes: a substrate and a sponge layer; One end of the substrate is connected to the frame; The substrate is provided with a mounting groove, and the sponge layer is installed in the mounting groove.

[0008] Furthermore, the mounting groove has a H-shaped structure; The substrate has two sets of protrusions symmetrically arranged on its side, and a groove adapted to the position of the protrusions is provided on one end face of the frame on the same side as the substrate.

[0009] Furthermore, the size adjustment assembly includes: a telescopic rod and a baffle plate; The telescopic rod is located between the fine filter plate and the coarse filter assembly, and is connected to the inner wall of the frame. The telescopic rod is also connected to an external controller. The output end of the telescopic rod is connected to the bottom of one end of the baffle plate, and the top of the baffle plate is slidably connected to the surface of the fine filter plate via an axis.

[0010] Furthermore, the baffle plate includes: a baffle strip and a baffle block; The baffles are arranged side by side and parallel to each other on one side of the air inlet; Each of the baffles is provided with a baffle at intervals, and the position and number of the baffles are adapted to the air inlet. The upper end of each of the baffles is slidably connected to the surface of the fine filter plate via a shaft, and the lower end of each of the baffles is connected to the output end of the telescopic rod.

[0011] The beneficial effects of this utility model are: The coarse filter component blocks large particles in the air, achieving initial air purification. The air then passes through the fine filter component, which intercepts smaller particles from the coarse filter, further improving the cleanliness of the incoming air. Furthermore, the size adjustment component allows for flexible adjustment of the fine filter's air inlet size according to different dust concentrations. In high-dust environments, this enhances filtration and reduces filter clogging, while in low-dust environments, it reduces ventilation resistance and ensures efficient heat dissipation. Attached Figure Description

[0012] Figure 1 A schematic diagram of the explosion structure of the dustproof device provided by this utility model from the front and side directions; Figure 2 A schematic diagram of the rear-side explosion structure of the dustproof device provided by this utility model; Figure 3 A front structural diagram of the dustproof device provided by this utility model; Figure 4 A schematic diagram of the rear structure of the dustproof device provided by this utility model.

[0013] Figure label: In the diagram: 1 is the coarse filter assembly, 2 is the frame, 3 is the fine filter plate, 4 is the substrate, 5 is the sponge layer, 6 is the mounting groove, 7 is the protrusion, 8 is the groove, 9 is the telescopic rod, 10 is the baffle, and 11 is the baffle block. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-4 This utility model provides a dustproof device for the air inlet of an SVG device, comprising: A coarse filter component 1 is installed inside the SVG device. One end of the coarse filter component 1 is connected to the air inlet of the SVG device to block large particles of foreign matter in the air from entering the SVG device. A fine filter assembly, one end of which is connected to the other end of the coarse filter assembly 1, is used to block small particulate foreign objects in the air delivered from the coarse filter assembly 1 from entering the SVG device. A size adjustment component, connected to the fine filter component, is used to change the airflow entering the SVG device from the fine filter component.

[0016] The fine filter component is seamlessly connected to the coarse filter component by means of sealant bonding, snap-fit ​​splicing, etc., which can perform secondary filtration on the air that has been initially purified by the coarse filter component. Then, the fine filter component is sealed and fixed to the housing of the SVG device by screws and other fasteners. The size adjustment component is stably connected to the fine filter component by welding, bolting or other means. It can flexibly change the air volume entering the SVG device from the fine filter component according to the dust concentration difference in the SVG device usage scenario. In high dust environment, the size of the air inlet channel can be reduced to enhance the filtration and interception effect, and in low dust environment, the size of the air inlet channel can be increased to reduce ventilation resistance.

[0017] In some embodiments, the coarse filter component 1 is a metal plate, and the surface of the metal plate is provided with filter holes.

[0018] In some embodiments, the fine filtration assembly includes: a frame 2, a fine filter plate 3, and a flexible filtration mechanism; The coarse filter component 1 is embedded in the frame 2, and one end of it is flush with one end of the frame 2 on the same side. The flexible filtration mechanism is connected to the other end of the frame 2, and a gap is left between it and the coarse filtration component 1; The fine filter plate 3 is located between the flexible filter mechanism and the coarse filter assembly 1, and the periphery of the fine filter assembly is connected to the inner wall of the frame 2. The size adjustment component is connected to the fine filter plate 3 and is used to adjust the size of the air inlet hole on the fine filter plate 3.

[0019] The frame has two sets of side ears symmetrically arranged on its side. One end face of each side ear is flush with the end face of the SVG device housing connected to the frame. The side ears are provided with through holes for connecting the side ears to the housing of the SVG device with fasteners, thereby connecting the entire dustproof device to the SVG device.

[0020] The coarse filter assembly is fixed within the frame by an embedded method, with its end facing the SVG air inlet flush with one end of the frame on the same side. The flexible filter mechanism is connected to the end of the frame away from the air inlet by screws, tenons, or other means, with a 5-10cm gap between it and the coarse filter assembly. This gap provides buffer space for the airflow after coarse filtration. The fine filter plate is located between the flexible filter mechanism and the coarse filter assembly, and its periphery is tightly connected to the inner wall of the frame by welding, snap-fit, or other means. The size adjustment assembly is connected to the surface of the fine filter plate via a connector, allowing adjustment of the opening size of the air inlet on the fine filter plate by changing the position of the baffle, thereby achieving flexible adaptation of airflow and filtration accuracy.

[0021] In some embodiments, the flexible filtration mechanism includes: a substrate 4 and a sponge layer 5; One end of the substrate 4 is connected to the frame 2; The substrate 4 is provided with a mounting groove 6, and the sponge layer 5 is installed in the mounting groove 6.

[0022] The mounting groove 6 has a sun-shaped structure; Two sets of protrusions 7 are symmetrically arranged on the side of the substrate 4, and a groove 8 adapted to the position of the protrusions 7 is provided on one end face of the frame 2 on the same side as the substrate 4.

[0023] Wherein, the mounting groove is of a shape like the Chinese character "日", this structure can divide the filtering area of the substrate into a plurality of independent small areas, and a corresponding sponge block is installed in each small area. On the one hand, it can increase the contact area between the sponge layer and the air flow, and improve the adsorption efficiency of fine particles; on the other hand, even if the sponge block in a certain area is blocked, other areas can still perform normal filtering, so as to ensure the overall air intake stability and avoid insufficient heat dissipation of the equipment caused by local blockage; two sets of protrusions are symmetrically arranged on the side edge of the substrate along the length direction, and an end face of the frame on the same side as the substrate is provided with grooves that are completely adapted to the positions and shapes of the protrusions. During installation, the protrusions of the substrate only need to be aligned with the grooves of the frame and pushed in, so as to realize rapid positioning and sealing connection between the substrate and the frame. At the same time, during disassembly, the substrate only needs to be pulled in the reverse direction for separation, which improves the convenience of maintenance.

[0024] In some embodiments, the size adjusting assembly comprises: a telescopic rod 9 and a shielding plate; The telescopic rod 9 is located between the fine filter plate 3 and the coarse filter assembly 1, and is connected with the inner wall of the frame 2, and the telescopic rod 9 is connected with an external controller; The output end of the telescopic rod 9 is connected to the bottom of one end of the shielding plate, and the top of the shielding plate is slidably connected to the surface of the fine filter plate 3 through a shaft.

[0025] Wherein, the output end of the telescopic rod is fixedly connected to the bottom of one end of the shielding plate by means of a hinge, a pin connection or the like, and the top of the shielding plate is slidably connected to the surface of the fine filter plate by means of a slide block-slide rail structure, a hinge shaft or the like. When the telescopic rod extends or retracts, it will drive the bottom of the shielding plate to move along the axial direction of the telescopic rod, while the top of the shielding plate slides along the surface of the fine filter plate, thereby changing the overlapping area between the shielding plate and the air inlet holes of the fine filter plate. When the telescopic rod extends, the area of the air inlet holes shielded by the shielding plate increases, and the actual ventilation size of the air inlet holes decreases; when the telescopic rod retracts, the area of the air inlet holes shielded by the shielding plate decreases, and the actual ventilation size of the air inlet holes increases.

[0026] In some embodiments, the shielding plate comprises: a barrier strip 10 and a barrier block 11; The barrier strips 10 are arranged side by side and parallel on one side of the air inlet holes; The barrier blocks 11 are arranged at intervals on each of the barrier strips 10, and the positions and quantities of the barrier blocks 11 are adapted to the air inlet holes; The upper end of each of the barrier strips 10 is slidably connected to the surface of the fine filter plate 3 through a shaft, and the lower end of each of the barrier strips 10 is connected to the output end of the telescopic rod 9.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0028] The upper end of each baffle is slidably connected to the surface of the fine filter plate via a bushing-sliding shaft structure (the sliding shaft is fixed to the surface of the fine filter plate, and the bushing is fitted on the sliding shaft and connected to the baffle); the lower end of each baffle is connected to the output end of the telescopic rod via a connector (such as a connecting rod), so that when the telescopic rod extends or retracts, it can drive all the baffles to move synchronously, ensuring that the baffles on each baffle simultaneously block or move away from the air inlet hole, thereby achieving uniform adjustment of the air inlet hole size.

Claims

1. A dustproof device at the air inlet of an SVG device, characterized in that, include: A coarse filter assembly is installed inside the SVG device. One end of the coarse filter assembly is connected to the air inlet of the SVG device to block large particles of foreign matter in the air from entering the SVG device. A fine filter assembly, one end of which is connected to the other end of the coarse filter assembly, is used to block small particulate matter in the air delivered from the coarse filter assembly from entering the SVG device. A size adjustment component, connected to the fine filter component, is used to change the airflow entering the SVG device from the fine filter component.

2. The dustproof device at the air inlet of the SVG device according to claim 1, characterized in that, The coarse filter component is a metal plate, and the surface of the metal plate is provided with filter holes.

3. The dustproof device at the air inlet of the SVG device according to claim 1, characterized in that, The fine filtration assembly includes: a frame, a fine filter plate, and a flexible filter mechanism; The coarse filter component is embedded in the frame, and one end of it is flush with one end of the frame on the same side. The flexible filtration mechanism is connected to the other end of the frame, and a gap is left between it and the coarse filtration component; The fine filter plate is located between the flexible filter mechanism and the coarse filter assembly, and the periphery of the fine filter assembly is connected to the inner wall of the frame. The size adjustment component is connected to the fine filter plate and is used to adjust the size of the air inlet hole on the fine filter plate.

4. The dustproof device at the air inlet of the SVG device according to claim 3, characterized in that, The flexible filtration mechanism includes: a substrate and a sponge layer; One end of the substrate is connected to the frame; The substrate is provided with a mounting groove, and the sponge layer is installed in the mounting groove.

5. The dustproof device at the air inlet of the SVG device according to claim 4, characterized in that, The mounting slot has a H-shaped structure; The substrate has two sets of protrusions symmetrically arranged on its side, and a groove adapted to the position of the protrusions is provided on one end face of the frame on the same side as the substrate.

6. The dustproof device at the air inlet of the SVG device according to claim 3, characterized in that, The size adjustment assembly includes: a telescopic rod and a baffle plate; The telescopic rod is located between the fine filter plate and the coarse filter assembly, and is connected to the inner wall of the frame. The telescopic rod is also connected to an external controller. The output end of the telescopic rod is connected to the bottom of one end of the baffle plate, and the top of the baffle plate is slidably connected to the surface of the fine filter plate via an axis.

7. The dustproof device at the air inlet of the SVG device according to claim 6, characterized in that, The baffle plate includes: a baffle strip and a baffle block; The baffles are arranged side by side and parallel to each other on one side of the air inlet; Each of the baffles is provided with a baffle at intervals, and the position and number of the baffles are adapted to the air inlet. The upper end of each of the baffles is slidably connected to the surface of the fine filter plate via a shaft, and the lower end of each of the baffles is connected to the output end of the telescopic rod.

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