Direct-current power supply filter convenient to install

Abstract

The utility model relates to the technical field of filters, in particular to a direct-current power supply filter convenient to install, which comprises an installation frame, a plurality of corner positioning seats are distributed on the front surface of the installation frame, and a filter body is inserted into a rectangular space formed by any four corner positioning seats in a sliding manner. Power-on interfaces are arranged at the upper and lower ends of the filter bodies, the surfaces of the plurality of filter bodies arranged in the same row are covered with the same positioning frame, and the two ends of the positioning frame are tightly attached to the surface of the mounting frame. According to the scheme, the design that the corner positioning seats are matched with the rectangular filter bodies is adopted, preliminary alignment is achieved by embedding the four top corners into the positioning seats, the installation process is simplified, the positioning frame can cover the multiple filter bodies at the same time, and unified fixing of batch filters is achieved by matching with a quick locking structure of the threaded columns, the built-in sleeves and the knob type threaded sleeves; a gap of 1cm is reserved between the filter body and the mounting frame and is matched with a pipeline and an air tap system in the inwards-concave channel to form a passive heat dissipation air channel.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a DC power supply filter that is easy to install. Background Technology

[0002] A DC power filter is an electronic device used to purify DC power signals. Its main function is to remove noise, ripple and other interference signals from the power supply, thereby providing a cleaner and more stable DC power.

[0003] DC power filters are crucial components for ensuring the normal operation of electronic equipment. By selecting and designing filters appropriately, power quality and system stability can be significantly improved. For example, Chinese Patent Publication No. CN212259559U provides an easy-to-install DC power filter, including an overall filter structure. This structure includes a filter housing with connector holes at both ends and a bottom cover fixed to the bottom. The bottom cover and filter housing are connected by bolts. The connector structure, output structure, and filter housing of this invention are all secured by a trapezoidal rod on the bottom cover. As the bottom cover and filter housing are pressed together, the connector and output structures fit tightly against the filter housing under the pressure of the trapezoidal rod. The rectangular connector holes prevent loosening after installation and avoid corrosion issues associated with threaded or bolted fastening. This design enhances practicality and makes installation, disassembly, and maintenance quicker and more convenient.

[0004] Currently, DC power filters often employ multiple filters working together to perform complex filtering of multiple power sources and improve overall aluminum filtering performance. When these filters are installed in the equipment, it is necessary to plan the installation space to ensure a neat and orderly installation. In most cases, multiple filters are used in series. If a fault occurs, each filter needs to be checked one by one. If they are fixed one by one during installation, the operation of disassembly and troubleshooting will be relatively cumbersome. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by providing an easy-to-install DC power filter.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design an easy-to-install DC power filter, including a mounting frame. The front of the mounting frame has several corner positioning seats. A filter body is slidably inserted into the rectangular space formed by any four corner positioning seats. Both the upper and lower ends of the filter body are provided with power interfaces. The surfaces of several filter bodies arranged in the same row are covered by the same positioning frame. The two ends of the positioning frame are respectively set in close contact with the surface of the mounting frame.

[0008] The positioning frame has an inner sleeve fixed through both ends. The surface of the mounting frame is fixed with threaded posts that correspond one-to-one with the positions of the inner sleeves. The surface of the threaded posts is slidably sleeved with the inside of the inner sleeves. The end of the threaded posts is threadedly connected with a threaded sleeve. One side of the threaded sleeve is tightly attached to the end face of the inner sleeve. Several knobs are fixed on the outer ring wall of the threaded sleeve.

[0009] The mounting bracket has a recessed channel at the end away from the filter body, and the side of the filter body closest to the mounting bracket has a one-centimeter gap with the surface of the mounting bracket.

[0010] In detail, several mounting plates are fixedly distributed at the upper and lower ends of the mounting frame, and mounting sleeves are fixedly inserted through the interior of the mounting plates. The inner wall of the mounting sleeves is smooth or threaded.

[0011] In detail, the mounting bracket has several built-in holes on the inner wall of the concave channel. The built-in holes are circular holes, and each built-in hole corresponds to a filter body.

[0012] In detail, the concave channel is provided with a pipe inside, and the outer wall of the pipe is fixed to the inner wall of the concave channel by a bracket. Several air nozzles are fixedly inserted through the end of the pipe near the internal hole, and any one of the air nozzles is fitted and inserted through the corresponding internal hole.

[0013] In detail, one end of the pipe is a closed end and the other end is an open end. A cylinder is installed on the flange of the open end. A dustproof net is embedded and fixed inside the cylinder at the end away from the pipe. The dustproof net is made of aluminum alloy wire mesh.

[0014] In detail, a motor is installed inside the cylinder, and a connecting block is fixed on the outer wall of the motor. The other end of the connecting block is fixed to the inner wall of the cylinder by screws.

[0015] In detail, the motor has an internal shaft for driving, and blades are fixed to the end of the shaft.

[0016] In detail, several lead frames are fixed at the upper and lower ends of the mounting bracket, and corresponding lead frames are provided at the upper and lower ends of any filter body. Several lead sleeves are fixed through the surface of the lead frame, and any lead sleeve is fitted with the corresponding power interface position.

[0017] The design scheme proposed in this utility model has the following beneficial effects in application:

[0018] 1. This solution adopts a design that combines corner positioning seats with rectangular filter bodies. Initial alignment is achieved by embedding the positioning seats at the four corners, simplifying the installation process. The positioning frame can cover multiple filter bodies at the same time. Combined with the quick-locking structure of threaded pillars, built-in sleeves and knob-type threaded sleeves, it can achieve uniform fixing of batch filters.

[0019] 2. As described in 1, a one-centimeter gap is reserved between the filter body and the mounting bracket. Together with the pipe and air nozzle system in the concave channel, a passive heat dissipation air duct is formed. The airflow generated by the motor-driven blades inside the cylinder is filtered by the dustproof net and then blown directionally to each filter gap through the air nozzle, forcibly accelerating heat exchange. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall rear structure of this utility model;

[0022] Figure 3 This is a schematic diagram showing the distribution of the built-in holes and air nozzles of this utility model;

[0023] Figure 4 This is a schematic diagram showing the gap distribution between the filter body and the mounting bracket of this utility model;

[0024] Figure 5 This is a schematic diagram showing the disassembly and distribution of the cylinder, motor, and dustproof net of this utility model.

[0025] In the diagram: 1. Mounting bracket; 11. Positioning seat; 12. Filter body; 13. Power interface; 14. Positioning bracket; 15. Internal sleeve; 16. Threaded post; 17. Threaded sleeve; 18. Knob; 19. Recessed channel; 1001. Mounting plate; 1002. Mounting sleeve; 1003. Internal hole; 2. Pipe; 21. Air nozzle; 3. Cylinder; 31. Dustproof net; 32. Motor; 33. Connecting block; 34. Blade; 4. Lead wire bracket; 41. Lead wire sleeve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figures 1-5A DC power filter that is easy to install includes a mounting frame 1. Several corner positioning seats 11 are distributed on the front of the mounting frame 1. A filter body 12 is slidably inserted into the rectangular space formed by any four corner positioning seats 11. The filter body 12 is rectangular, and its four apex positions are placed into the corresponding corner positioning seats 11, so that it can be initially positioned with the mounting frame 1. Both the top and bottom ends of the filter body 12 are provided with power interfaces 13. The surfaces of several filter bodies 12 arranged in the same row are covered by the same positioning frame 14. The two ends of the positioning frame 14 are respectively tightly attached to the surface of the mounting frame 1. The positioning frame 14 can simultaneously cover multiple filter bodies 12 placed on the mounting frame 1. By cooperating with the corner positioning seats 11, simultaneous installation and positioning can be achieved.

[0028] The positioning frame 14 has an inner sleeve 15 fixed through both ends. The surface of the mounting frame 1 is fixed with a threaded post 16 that corresponds to the position of the inner sleeve 15. The surface of the threaded post 16 is slidably sleeved with the inside of the inner sleeve 15. The end of the threaded post 16 is threadedly connected to a threaded sleeve 17. One side of the threaded sleeve 17 is tightly attached to the end face of the inner sleeve 15. Several knobs 18 are fixed on the outer ring wall of the threaded sleeve 17. After the positioning frame 14 covers the filter body 12, the threaded post 16 and the inner sleeve 15 are slidably connected through, which can realize the positioning of the positioning frame 14 and the mounting frame 1. The positioning frame 14 and the mounting frame 1 can be fixed by the threaded connection of the threaded sleeve 17 and the threaded post 16, so that the positioning frame 14 can fix multiple filter bodies 12.

[0029] The mounting bracket 1 has a recessed channel 19 at the end away from the filter body 12. The side of the filter body 12 closest to the mounting bracket 1 is separated from the surface of the mounting bracket 1 by a gap of one centimeter. The gap between the filter body 12 and the mounting bracket 1 allows air to circulate around the filter body 12 during continuous operation, ensuring its heat dissipation effect.

[0030] It should be further explained that several mounting plates 1001 are fixedly distributed at the upper and lower ends of the mounting frame 1. A mounting sleeve 1002 is fixedly inserted through the inside of the mounting plate 1001. The inner wall of the mounting sleeve 1002 is smooth or threaded. The entire mounting frame 1 can be fixed to the inner wall of the equipment housing by screws or bolts passing through the mounting sleeve 1002.

[0031] It should be further explained that the mounting bracket 1 has several built-in holes 1003 on the inner wall of the recessed channel 19. The built-in holes 1003 are circular holes, and each built-in hole 1003 corresponds to the filter body 12. The built-in holes 1003 mainly provide air through the air nozzle 21 and ensure air circulation between the filter body 12 and the mounting bracket 1.

[0032] It should be further explained that a pipe 2 is provided inside the concave channel 19. The outer wall of the pipe 2 is fixed to the inner wall of the concave channel 19 by a bracket. Several air nozzles 21 are fixedly inserted through one end of the pipe 2 near the built-in hole 1003. Any air nozzle 21 is fitted and inserted through the corresponding built-in hole 1003. The air nozzle 21 can blow out airflow. The air nozzle 21 is fixed to the filter body 12, which can improve the airflow speed around the filter body 12 when it is working continuously and improve the efficiency of heat exchange.

[0033] It should be further explained that one end of the pipe 2 is a closed end and the other end is an open end. A cylinder 3 is installed on the flange of the open end. A dustproof net 31 is embedded and fixed inside the cylinder 3 at the end away from the pipe 2. The dustproof net 31 is made of aluminum alloy wire mesh material. The dustproof net 31 can block lint and dust at the air inlet of the cylinder 3, and prevent lint and dust from adhering to the motor 32.

[0034] It should be further explained that a motor 32 is installed inside the cylinder 3, and a connecting block 33 is fixed on the outer wall of the motor 32. The other end of the connecting block 33 is fixed to the inner wall of the cylinder 3 by screws. The motor 32 can be stably installed inside the cylinder 3 through the connecting block 33.

[0035] It should be further explained that the motor 32 has a drive shaft inside, and a blade 34 is fixed at the end of the shaft. After the motor 32 is powered on, it can drive the blade 34 to rotate through its shaft, generating an airflow that blows towards the pipe 2.

[0036] It should be further explained that several lead frame 4 are fixed at the upper and lower ends of the mounting bracket 1, and corresponding lead frame 4 is provided at the upper and lower ends of any filter body 12. Several lead sleeves 41 are fixed through the surface of the lead frame 4. Any lead sleeve 41 is fitted with the corresponding power interface 13. After the power interface 13 leads out the line, it will bend in an irregular direction. If the bending point is close to the power interface 13, it is easy to cause the wire terminal to break. Therefore, long-term twisting can easily lead to breakage. By arranging the wire upward by the lead sleeve 41, the bending point can be moved away from the wire terminal, reducing the occurrence of twisting loss at the connection end.

[0037] Working method: This solution uses the corner positioning seats 11 distributed on the front of the mounting bracket 1 in a rectangular array to provide precise initial positioning for multiple filter bodies 12. The four corners of the filter body 12 are embedded with the corresponding corner positioning seats 11 to achieve pre-fixation and avoid displacement during installation. The positioning bracket 14 covers the surface of the same row of filter bodies 12, and secondary positioning is completed by the sliding engagement of the built-in sleeve 15 and the threaded post 16. Finally, the threaded sleeve 17 is tightened to achieve final fixation. This dual positioning mechanism (corner positioning seat + threaded post locking) not only improves installation efficiency, but also ensures the neat arrangement of multiple filter bodies 12, which is convenient for batch maintenance or replacement. In addition, the mounting plate 1001 and mounting sleeve 1002 of the mounting bracket 1 are designed to support screw or bolt fixing, so that the entire system can be quickly integrated into the equipment chassis to adapt to the needs of different installation environments.

[0038] The one-centimeter gap between the filter body 12 and the mounting bracket 1 forms the basis of the heat dissipation air duct. The pipe 2 in the concave channel 19 blows airflow directionally toward the back of the filter body 12 through the air nozzle 21, forcibly accelerating the airflow. The airflow generated by the motor 32 driving the blades 34 enters the pipe 2 through the cylinder 3 (including the dustproof net 31 for filtration) and is finally ejected from the air nozzle 21, forming a local high-pressure airflow that directly acts on the heat-generating area of ​​the filter. The dustproof net 31 is made of aluminum alloy wire mesh, which blocks dust while ensuring ventilation, avoiding clogging of the air nozzle 21 or contamination of the filter circuit. The one-to-one correspondence between the built-in hole 1003 and the air nozzle 21 ensures the uniformity of airflow distribution and avoids local overheating. This active heat dissipation solution significantly improves heat exchange efficiency compared to passive heat dissipation, and is especially suitable for high-density installation or long-term operation scenarios.

[0039] The design of the lead frame 4 solves the risk of cable breakage caused by cable bending at the power interface 13. The lead sleeve 41 is aligned with the power interface 13, forcing the cable to run along the fixed path of the lead sleeve 41, keeping the bending point away from the interface welding point and dispersing mechanical stress.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A DC power supply filter that is easy to install, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) has several corner positioning seats (11) distributed on its front side. A filter body (12) is slidably inserted into the rectangular space formed by any four corner positioning seats (11). Both the upper and lower ends of the filter body (12) are provided with power interfaces (13). The surfaces of several filter bodies (12) arranged in the same row are covered with the same positioning frame (14). The two ends of the positioning frame (14) are respectively in close contact with the surface of the mounting bracket (1). The positioning frame (14) has an inner sleeve (15) fixed through both ends. The surface of the mounting frame (1) is fixed with a threaded post (16) that corresponds to the position of the inner sleeve (15). The surface of the threaded post (16) is slidably sleeved with the inside of the inner sleeve (15). The end of the threaded post (16) is threadedly connected with a threaded sleeve (17). One side of the threaded sleeve (17) is tightly attached to the end face of the inner sleeve (15). Several knobs (18) are fixed on the outer ring wall of the threaded sleeve (17). The mounting bracket (1) has a recessed channel (19) at one end away from the filter body (12), and the side of the filter body (12) near the mounting bracket (1) has a one-centimeter gap with the surface of the mounting bracket (1).

2. The DC power supply filter that is easy to install according to claim 1, characterized in that: The mounting bracket (1) has several mounting plates (1001) fixedly distributed at its upper and lower ends. A mounting sleeve (1002) is fixedly inserted through the inside of the mounting plate (1001). The inner wall of the mounting sleeve (1002) is smooth or threaded.

3. The DC power filter that is easy to install according to claim 1, characterized in that: The mounting bracket (1) has several built-in holes (1003) on the inner wall of the recessed channel (19). The built-in holes (1003) are circular holes, and each built-in hole (1003) corresponds to a filter body (12).

4. The DC power filter that is easy to install according to claim 3, characterized in that: The concave channel (19) is provided with a pipe (2). The outer wall of the pipe (2) is fixed to the inner wall of the concave channel (19) by a bracket. Several air nozzles (21) are fixedly inserted through one end of the pipe (2) near the built-in hole (1003). Any air nozzle (21) is fitted and inserted through the corresponding built-in hole (1003).

5. A DC power supply filter that is easy to install according to claim 4, characterized in that: One end of the pipe (2) is a closed end and the other end is an open end. A cylinder (3) is installed on the flange of the open end. A dustproof net (31) is embedded and fixed inside the cylinder (3) at the end away from the pipe (2). The dustproof net (31) is made of aluminum alloy wire mesh material.

6. A DC power supply filter that is easy to install according to claim 5, characterized in that: The cylinder (3) is equipped with a motor (32) inside. A connecting block (33) is fixed on the outer wall of the motor (32). The other end of the connecting block (33) is fixed to the inner wall of the cylinder (3) by screws.

7. A DC power supply filter that is easy to install according to claim 6, characterized in that: The motor (32) has a drive shaft inside, and blades (34) are fixed at the end of the shaft.

8. A DC power supply filter that is easy to install according to claim 1, characterized in that: The mounting bracket (1) has several lead frames (4) fixed at its upper and lower ends respectively. Each filter body (12) has a corresponding lead frame (4) at its upper and lower ends. Several lead sleeves (41) are fixed through the surface of the lead frame (4). Each lead sleeve (41) is matched with the corresponding power interface (13).

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