Low-frequency high-power filter

Abstract

The utility model belongs to the technical field of filters, and particularly relates to a low-frequency high-power filter which comprises a fixing frame. Two first storage grooves are formed in the bottom of the fixing frame; a heat dissipation assembly is installed on the top of the fixing frame. A protection box is mounted at the bottom of the fixing frame; two second storage grooves are formed in the top of the protection box; the end of the first storage groove is rotationally connected with a second supporting rod. The end of the second supporting rod is rotationally connected with a hinge block. A first supporting rod is rotationally connected to the middle of the hinge block. The end part of the first supporting rod is rotationally connected to the end part of the second storage groove; two fixing rods are fixedly connected to the outer side wall of the fixing frame. Through the structure, the filter can be quickly mounted and taken out, so that the filter is more efficient to replace and maintain, the filter is more convenient to operate, the operation time for mounting and dismounting the filter by using complex tools or steps is shortened, and the operation difficulty for mounting and dismounting the filter is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of filter technology, specifically a low-frequency high-power filter. Background Technology

[0002] A filter is a device specifically designed to process low-frequency signals and can withstand high power. Filters can extract specific frequency components from a signal or suppress unwanted frequency components.

[0003] Low-frequency high-power filters are commonly used in power systems and industrial equipment. By inputting a mixed low-frequency and high-frequency signal, the series inductor presents a high impedance to the high-frequency signal, preventing it from passing through. Then, the parallel capacitor presents a low impedance to the high-frequency signal, bypassing it to ground. The low-frequency signal passes smoothly through the inductor and the load, while the high-frequency signal is suppressed.

[0004] Low-frequency high-power filters are typically heavy due to their need to handle high power. During installation, tools are required to fix the filter to the protective device before it is installed in the cabinet. Disassembly and reconnection are cumbersome, making it inconvenient for subsequent maintenance and inspection of the filter.

[0005] Therefore, this utility model provides a low-frequency high-power filter. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A low-frequency high-power filter of this utility model includes a fixing frame; two first storage slots are opened at the bottom of the fixing frame; a heat dissipation component is installed at the top of the fixing frame; a protective box is installed at the bottom of the fixing frame; two second storage slots are opened at the top of the protective box; a second support rod is rotatably connected to the end of the first storage slot; a hinge block is rotatably connected to the end of the second support rod; a first support rod is rotatably connected to the middle of the hinge block; the end of the first support rod is rotatably connected to the end of the second storage slot; two fixing rods are fixed to the outer wall of the fixing frame; the two fixing rods are arranged opposite each other; two locking blocks are rotatably connected to the outer wall of the protective box; the two locking blocks correspond to the fixing rods; the above structure enables quick installation and removal of the filter, making filter replacement and maintenance more efficient, filter operation more convenient, reducing the operation time of installing and disassembling the filter using complex tools or steps, reducing the difficulty of filter installation and disassembly, effectively improving the efficiency of filter installation and replacement, and facilitating cleaning and inspection of the inside of the fixing frame and the filter itself, enabling the filter to operate stably for a long time.

[0008] Preferably, the heat dissipation assembly includes a through slot; the through slot is formed on the top of the fixing frame; multiple heat-conducting rods are installed in the middle of the through slot; heat sinks are installed in the middle of the heat-conducting rods; two cooling fans are installed on the top of the heat sinks; a protective cover is fixed to the top of the fixing frame; the protective cover is fixed to the top of the fixing frame; multiple heat dissipation holes are formed on the top of the protective cover; the above structure can quickly conduct heat inside the filter to the heat sink, and the two cooling fans accelerate airflow to remove heat, effectively reducing damage to the filter caused by overheating, lowering the operating temperature of the internal components of the filter, reducing component aging or performance degradation caused by high temperature, and extending the service life of the filter.

[0009] Preferably, the inner sidewall of the protective box has two sliding grooves; the two sliding grooves are arranged opposite each other; two sliders are slidably connected in the middle of the sliding grooves; a first spring is fixedly connected in the middle of the slider; the end of the first spring is fixedly connected to one end of the sliding groove; the two first springs are arranged opposite each other; an elastic plate is fixedly connected in the middle of the two sliders; the elastic plate is arc-shaped; the above structure can adapt to filters of different sizes or models, can fix filters of different sizes, provide greater installation flexibility, make the filter firmly fixed in the middle of the protective box, reduce the displacement or falling off of the filter during operation, and reduce collision and wear caused by vibration or displacement.

[0010] Preferably, the top of the fixing frame has two grooves; the two grooves are arranged opposite each other; the grooves are located inside the fixing frame; multiple positioning rods are fixedly connected to the middle of the grooves; multiple second springs are fixedly connected to the middle of the grooves; the positioning rods are located inside the corresponding second springs; buffer plates are fixedly connected to the ends of the multiple second springs; the above structure can effectively absorb and isolate the vibration generated during the operation of the filter, reduce the vibration transmitted to other components, and effectively reduce the direct impact on the heat-conducting rod during filter installation, reduce the mechanical stress generated when the heat-conducting rod is in direct contact with the filter, and reduce the damage to the heat-conducting rod caused by impact.

[0011] Preferably, a sound insulation board is fixedly attached to the bottom of the protective box; the sound insulation board is fixedly attached inside the protective box; the above structure can effectively absorb and isolate the noise generated during the operation of the filter, reduce noise interference to the surrounding environment and personnel, thereby improving the working environment and effectively reducing the propagation of noise during the operation of the filter.

[0012] Preferably, the bottom of the mounting bracket is provided with multiple sealing grooves; the top of the protective box is fixed with multiple sealing gaskets; the above structure can effectively reduce dust and moisture from entering the mounting bracket and the interior of the protective box through gaps, effectively reduce moisture and corrosive gases from entering the filter and causing components to rust or corrode, thereby extending the service life of the filter.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The low-frequency high-power filter described in this utility model enables quick installation and removal of the filter through the above structure, making filter replacement and maintenance more efficient, filter operation more convenient, reducing the operation time of installing and disassembling the filter using complex tools or steps, reducing the difficulty of filter installation and disassembly, effectively improving the efficiency of filter installation and replacement, and facilitating the cleaning and inspection of the inside of the mounting bracket and the filter itself, enabling the filter to operate stably for a long time.

[0015] 2. The low-frequency high-power filter described in this utility model can quickly conduct heat from inside the filter to the heat sink through the above structure. The two cooling fans accelerate airflow and remove heat, effectively reducing damage to the filter caused by overheating, lowering the operating temperature of the internal components of the filter, reducing component aging or performance degradation caused by high temperature, and extending the service life of the filter. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is an exploded view of the fixing frame and protective box in this utility model;

[0019] Figure 3 This is a schematic diagram of the heat dissipation component in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the elastic plate in this utility model.

[0021] In the diagram: 1. Fixing frame; 10. First storage slot; 11. Protective box; 12. Second storage slot; 13. First support rod; 14. Hinge block; 15. Second support rod; 16. Fixing rod; 17. Locking block; 2. Heat dissipation assembly; 21. Through slot; 22. Heat conduction rod; 23. Heat sink; 24. Heat dissipation fan; 25. Protective cover; 26. Heat dissipation hole; 3. Slide groove; 31. Slider; 32. First spring; 33. Elastic plate; 4. Groove; 41. Positioning rod; 42. Second spring; 43. Buffer plate; 5. Sound insulation plate; 6. Sealing groove; 61. Sealing gasket; 7. Filter screen. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 4 As shown, a low-frequency high-power filter according to an embodiment of this utility model includes a mounting frame 1; two first storage slots 10 are provided at the bottom of the mounting frame 1; a heat dissipation assembly 2 is installed on the top of the mounting frame 1; a protective box 11 is installed at the bottom of the mounting frame 1; two second storage slots 12 are provided on the top of the protective box 11; a second support rod 15 is rotatably connected to the end of the first storage slot 10; a hinge block 14 is rotatably connected to the end of the second support rod 15; a first support rod 13 is rotatably connected to the middle of the hinge block 14; the end of the first support rod 13 is rotatably connected to the end of the second storage slot 12; two fixing rods 16 are fixed to the outer wall of the mounting frame 1; the two fixing rods 16 are arranged opposite each other; two locking blocks 17 are rotatably connected to the outer wall of the protective box 11; the two locking blocks 17 correspond to the fixing rods 16; during operation, the mounting frame 1 is fixed in a designated position with bolts, the two locking blocks 17 are rotated, the locking blocks 17 move out from the middle of the fixing rods 16, and the protective box 11 is pulled down, at which time the first support rod 13 is rotatably connected to the end of the second storage slot 12; two fixing rods 16 are fixed to the outer wall of the mounting frame 1; the two locking blocks 17 are rotatably connected to the outer wall of the protective box 11; the two locking blocks 17 correspond to the fixing rods 16; during operation, the mounting frame 1 is fixed in a designated position with bolts, the two locking blocks 17 are rotated, the locking blocks 17 move out from the middle of the fixing rods 16, and the protective box 11 is pulled down, at which time the first support rod 13 is rotatably connected to the second The middle part of the slot 12 rotates, and at the same time, the second support rod 15 rotates through the hinge block 14. The end of the second support rod 15 rotates in the middle of the first storage slot 10, causing the protective box 11 to move downward. Then, the filter is placed in the middle of the protective box 11 and installed. The protective box 11 is pushed upward so that the top and bottom of the protective box 11 fit tightly together. The locking block 17 is rotated again so that the locking block 17 is locked in the middle of the fixing rod 16, fixing the protective box 11 to the fixing frame 1. Thus, the filter is installed inside the fixing frame 1 and the protective box 11. The above structure allows for quick installation and removal of the filter, making filter replacement and maintenance more efficient and filter operation more convenient. It reduces the operation time of installing and disassembling the filter using complex tools or steps, reduces the difficulty of filter installation and disassembly, effectively improves the efficiency of filter installation and replacement, and facilitates cleaning and inspection of the inside of the fixing frame 1 and the filter itself, enabling the filter to operate stably for a long time.

[0024] like Figures 1 to 3As shown, the heat dissipation assembly 2 includes a through slot 21; the through slot 21 is formed on the top of the mounting bracket 1; multiple heat-conducting rods 22 are installed in the middle of the through slot 21; heat sinks 23 are installed in the middle of the heat-conducting rods 22; two cooling fans 24 are installed on the top of the heat sinks 23; a protective cover 25 is fixed to the top of the mounting bracket 1; the protective cover 25 is fixed to the top of the mounting bracket 1; multiple heat dissipation holes 26 are formed on the top of the protective cover 25; during operation, after the filter is installed, its top is in contact with multiple heat dissipation assemblies 2. During the operation of the filter, the heat inside the filter is dissipated to the surface, and the multiple heat-conducting rods 22 guide the heat from the surface of the filter into the heat sinks 23. The system controls the activation of two cooling fans 24 to expel heat from the heat sink 23. The heat flow passes through multiple heat dissipation holes 26 and is discharged to the outside, thereby cooling the filter. This structure can quickly conduct heat from inside the filter to the heat sink 23. The two cooling fans 24 accelerate airflow and remove heat, effectively reducing filter damage caused by overheating, lowering the operating temperature of internal components, reducing component aging or performance degradation caused by high temperature, extending the filter's service life, reducing filter failure or performance fluctuations caused by overheating, and maintaining stable filter operation.

[0025] like Figure 1 , Figure 2 , Figure 4 As shown, the inner wall of the protective box 11 has two sliding grooves 3; the two sliding grooves 3 are arranged opposite each other; two sliders 31 are slidably connected in the middle of the sliding grooves 3; a first spring 32 is fixedly connected in the middle of the slider 31; the end of the first spring 32 is fixedly connected to one end of the sliding groove 3; the two first springs 32 are arranged opposite each other; an elastic plate 33 is fixedly connected in the middle of the two sliders 31; the elastic plate 33 is arc-shaped; when the filter is placed in the middle of the protective box 11, the two sides of the filter contact the elastic plate 33 and are pressed against the elastic plate 33 according to the size of the filter. The elastic plate 33 is pressured and pushes the two sliders 31 to slide inside the sliding grooves 3. At the same time, the first spring 32 elastically contracts as the sliders 31 move, and the two sides of the filter are fixed by the elastic plate 33. The above structure can adapt to filters of different sizes or models, and can fix filters of different sizes, providing greater installation flexibility, making the filter firmly fixed in the middle of the protective box 11, reducing the displacement or falling off of the filter during operation, and reducing collision and wear caused by vibration or displacement.

[0026] like Figure 3As shown, the top of the mounting bracket 1 has two grooves 4; the two grooves 4 are arranged opposite each other; the grooves 4 are located inside the mounting bracket 1; multiple positioning rods 41 are fixedly connected to the middle of the grooves 4; multiple second springs 42 are fixedly connected to the middle of the grooves 4; the positioning rods 41 are located inside the corresponding second springs 42; buffer plates 43 are fixedly connected to the ends of the multiple second springs 42; during operation, when the filter moves upward with the protective box 11, the two buffer plates 43 first contact the top of the filter. As the filter continues to apply pressure, the two buffer plates 43 enter the grooves 4, the filter contacts the heat-conducting rod 22, the positioning rods 41 guide the second springs 42 to contract, and at the same time, the multiple second springs 42 absorb the direct impact of the filter. Through the above structure, the vibration generated during the operation of the filter can be effectively absorbed and isolated, reducing the vibration transmitted to other components, and effectively reducing the direct impact of the filter on the heat-conducting rod 22 during installation, reducing the mechanical stress generated when the heat-conducting rod 22 is in direct contact with the filter, and reducing the damage caused by the impact to the heat-conducting rod 22.

[0027] like Figure 1 , Figure 2 , Figure 4 As shown, a sound insulation plate 5 is fixed to the bottom of the protective box 11; the sound insulation plate 5 is fixed inside the protective box 11; during operation, the noise generated during the operation of the filter is absorbed by the sound insulation plate 5. The above structure can effectively absorb and isolate the noise generated during the operation of the filter, reduce noise interference to the surrounding environment and personnel, thereby improving the working environment and effectively reducing the propagation of noise during the operation of the filter.

[0028] like Figures 1 to 4 As shown, the bottom of the mounting bracket 1 has multiple sealing grooves 6; the top of the protective box 11 is fixed with multiple sealing gaskets 61; during operation, when the protective box 11 is in contact with the mounting bracket 1, the sealing gaskets 61 enter the corresponding sealing grooves 6, and fill the gap between the mounting bracket 1 and the protective box 11 through the sealing gaskets 61. The above structure can effectively reduce dust and moisture from entering the mounting bracket 1 and the protective box 11 through the gaps, and effectively reduce moisture and corrosive gases from entering the filter to cause rust or corrosion of the components, thereby extending the service life of the filter.

[0029] like Figure 1 As shown, a filter 7 is installed in the middle of the heat dissipation hole 26; the filter 7 is fixed in the middle of the heat dissipation hole 26; during operation, the airflow process intercepts dust and impurities in the outside air through the filter 7. The above structure can effectively reduce the entry of dust and impurities in the surrounding environment into the protective cover 25 through multiple heat dissipation holes 26, reduce the adhesion of dust and impurities to the surface of the heat conduction rod 22 and the heat sink 23, and effectively reduce the accumulation of dust and impurities that cause corrosion damage.

[0030] During operation, the mounting bracket 1 is fixed in the designated position with bolts. Rotating the two locking blocks 17 moves them out from the middle of the fixing rod 16, pulling the protective box 11 downwards. At this time, the first support rod 13 rotates in the middle of the second storage slot 12, and simultaneously, the second support rod 15 rotates through the hinge block 14. The end of the second support rod 15 rotates in the middle of the first storage slot 10, causing the protective box 11 to move downwards. The filter is then placed in the middle of the protective box 11 and installed. Finally, the protective box 11 is pushed upwards until the top and bottom of the protective box 11 are aligned. The parts are tightly fitted together. The locking block 17 is rotated again to lock into the middle of the fixing rod 16, fixing the protective box 11 to the fixing frame 1. This allows the filter to be installed inside the fixing frame 1 and the protective box 11. After installation, the top of the filter is in contact with multiple heat dissipation components 2. During filter operation, heat inside the filter dissipates to the surface. Multiple heat-conducting rods 22 guide the heat from the filter surface to the heat sink 23. Simultaneously, two cooling fans 24 are activated to expel heat from the heat sink 23. The heat flow passes through multiple heat dissipation holes 2. The filter is vented to the outside to dissipate heat. When the filter is placed in the middle of the protective box 11, the two sides of the filter contact the elastic plate 33. The filter is pressed against the elastic plate 33 according to its size. The elastic plate 33 is pushed by the pressure to push the two sliders 31 to slide inside the groove 3. At the same time, the first spring 32 elastically contracts as the sliders 31 move. The elastic plate 33 fixes the two sides of the filter. When the filter moves upward with the protective box 11, the two buffer plates 43 first contact the top of the filter. As the filter continues to apply pressure, the two buffer plates 43 enter the groove 4. The filter contacts the heat conduction rod 22. The positioning rod 41 guides the second spring 42 to contract. At the same time, multiple second springs 42 absorb the direct impact of the filter. During the use of the filter, the sound insulation plate 5 absorbs the noise generated during the operation of the filter. When the protective box 11 is attached to the fixing frame 1, the sealing gasket 61 enters the corresponding sealing groove 6. The sealing gasket 61 fills the gap between the fixing frame 1 and the protective box 11. During the airflow, the filter screen 7 intercepts dust and impurities in the outside air.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A low-frequency high-power filter, comprising a mounting bracket (1); characterized in that: The fixing frame (1) has two first storage slots (10) at its bottom; a heat dissipation component (2) is installed on the top of the fixing frame (1); a protective box (11) is installed at the bottom of the fixing frame (1); two second storage slots (12) are opened on the top of the protective box (11); a second support rod (15) is rotatably connected to the end of the first storage slot (10); a hinge block (14) is rotatably connected to the end of the second support rod (15); a first support rod (13) is rotatably connected to the middle of the hinge block (14); the end of the first support rod (13) is rotatably connected to the end of the second storage slot (12); two fixing rods (16) are fixed to the outer wall of the fixing frame (1); the two fixing rods (16) are arranged opposite to each other; two locking blocks (17) are rotatably connected to the outer wall of the protective box (11); the two locking blocks (17) correspond to the fixing rods (16).

2. A low-frequency high-power filter according to claim 1, characterized in that: The heat dissipation assembly (2) includes a through slot (21); the through slot (21) is opened on the top of the fixing frame (1); a plurality of heat-conducting rods (22) are installed in the middle of the through slot (21); a heat sink (23) is installed in the middle of the heat-conducting rods (22); two heat dissipation fans (24) are installed on the top of the heat sink (23); a protective cover (25) is fixedly connected to the top of the fixing frame (1); the protective cover (25) is fixedly connected to the top of the fixing frame (1); a plurality of heat dissipation holes (26) are opened on the top of the protective cover (25).

3. A low-frequency high-power filter according to claim 1, characterized in that: The inner wall of the protective box (11) has two sliding grooves (3); the two sliding grooves (3) are arranged opposite to each other; two sliders (31) are slidably connected in the middle of the sliding grooves (3); a first spring (32) is fixed in the middle of the slider (31); the end of the first spring (32) is fixed in one end of the sliding groove (3); the two first springs (32) are arranged opposite to each other; an elastic plate (33) is fixed in the middle of the two sliders (31); the elastic plate (33) is arc-shaped.

4. A low-frequency high-power filter according to claim 1, characterized in that: The top of the fixing frame (1) has two grooves (4); the two grooves (4) are arranged opposite each other; the grooves (4) are located inside the fixing frame (1); a plurality of positioning rods (41) are fixedly connected to the middle of the grooves (4); a plurality of second springs (42) are fixedly connected to the middle of the grooves (4); the positioning rods (41) are located inside the corresponding second springs (42); buffer plates (43) are fixedly connected to the ends of the plurality of second springs (42).

5. A low-frequency high-power filter according to claim 1, characterized in that: The bottom of the protective box (11) is fixedly connected to a sound insulation board (5); the sound insulation board (5) is fixedly connected inside the protective box (11).

6. A low-frequency high-power filter according to claim 1, characterized in that: The bottom of the fixing frame (1) is provided with multiple sealing grooves (6); the top of the protective box (11) is fixed with multiple sealing gaskets (61).

7. A low-frequency high-power filter according to claim 2, characterized in that: A filter screen (7) is installed in the middle of the heat dissipation hole (26); the filter screen (7) is fixed in the middle of the heat dissipation hole (26).

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