Connectorized power filter for external soldering

Abstract

The utility model discloses a kind of power filter with connector convenient to external welding, including shell, cover plate, filter electronic assembly, electric connector and connector mounting plate, the upper end opening of shell and is equipped with cover plate, the lower end opening of shell and its lower end inner wall is equipped with multiple shell lugs, connector mounting plate is placed in shell and located on multiple shell lugs, multiple connecting columns are placed in shell, cover plate is connected with the upper end of connecting column by cover plate connecting screw, mounting plate connecting screw is connected with the screw hole of connecting column lower end after passing through the vertical through-hole on shell lug and the mounting plate through-hole on connector mounting plate, connector connecting screw is connected with the connecting plate mounting screw hole on connector mounting plate after passing through the corresponding through-hole on connector flange from bottom to top.The utility model is by increasing connector mounting plate, realize the function that it is convenient to weld electric connector and filter electronic assembly outside shell, operation is more convenient, and avoid affecting filtering performance.

Description

Technical Field

[0001] This utility model relates to a power filter with a connector, and more particularly to a power filter with a connector that is easy to externally solder. Background Technology

[0002] A power filter with connector is a filter that integrates an electrical connector with a power filter. It features filtering capabilities and easy connection to other components. Its basic structure includes a filter housing, filtering electronic components, and electrical connectors. The filtering electronic components are installed inside the filter housing, and the electrical connectors are installed on the filter housing and connected to the filtering electronic components.

[0003] Traditional power filters with connectors typically connect the connector flange to the filter housing via screws. However, the size of the filtering electronic components is larger than these screw holes. This structure necessitates first connecting the connector to the filter housing, and then soldering the connector to the filtering electronic components inside the filter housing. This not only makes the operation difficult due to the limited space, but also easily generates solder balls and other debris, potentially causing short circuits and other circuit failures that affect filtering performance. Furthermore, in some critical applications, it is necessary to avoid disassembling the power filter with connectors by non-professional personnel to prevent product failure or even scrapping. However, traditional power filters with connectors lack corresponding anti-disassembly structures; their housing and cover are only connected by conventional screws, allowing anyone to easily disassemble them. Therefore, they are unsuitable for applications requiring anti-disassembly functionality. Utility Model Content

[0004] The purpose of this invention is to provide a power filter with connectors that can be externally soldered to the electrical connectors and filter electronic components before being installed into the housing, in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions: A power filter with connector for easy external soldering includes a housing, a cover plate, a filtering electronic component, and an electrical connector. The filtering electronic component is installed inside the housing, and the electrical connector is installed on the housing and electrically connected to the filtering electronic component. The upper end of the housing is open and has the cover plate installed thereon. The cover plate has multiple vertical cover plate connection through holes near its edge. The lower end of the housing is open, and its lower inner wall has multiple housing lugs protruding towards the center of the housing. The power filter with connector for easy external soldering also includes a horizontal connector mounting plate. The connector mounting plate has multiple vertical mounting plate through holes near its edge. The connector mounting plate is placed inside the housing, on the multiple housing lugs, and below the filtering electronic component. Multiple vertical connecting posts are placed inside the housing, with their upper ends corresponding to the multiple cover plate connection through holes and their lower ends corresponding to the multiple mounting plate through holes. Multiple cover plate connecting screws are respectively... After passing through multiple cover plate connecting through holes from top to bottom, the screws of multiple mounting plate connecting screws connect to the screw holes at the upper ends of multiple connecting posts. The studs of multiple mounting plate connecting screws pass through multiple vertical through holes on multiple housing lugs and multiple mounting plate through holes from bottom to top, and then connect to the screw holes at the lower ends of multiple connecting posts. The electrical connector has an outwardly protruding connector flange near its upper end. The position above the connector flange on the electrical connector is the inner connecting end, which is electrically connected to the corresponding filter electronic component. The middle of the connector mounting plate has a vertical central through hole. Multiple connecting plate mounting screw holes are located around the central through hole on the connector mounting plate. The lower end of the electrical connector is placed outside the housing, and the inner connecting end passes through the central through hole of the connector mounting plate. The connector flange is located below the connector mounting plate. The studs of multiple connector connecting screws pass through multiple corresponding through holes on the connector flange from bottom to top, and then connect to the screw holes of multiple connecting plates.

[0006] Preferably, to facilitate the connection between the filter electronic component and the connector mounting plate, the filter electronic component includes a filter circuit board and a toroidal inductor. The connector mounting plate has multiple upward-protruding circuit board connecting posts on its surface. The studs of multiple circuit board connecting screws pass through multiple vertical through holes on the filter circuit board from top to bottom and connect to the screw holes at the upper ends of the multiple circuit board connecting posts. The toroidal inductor is mounted on the filter circuit board.

[0007] Preferably, for reliable installation of the toroidal inductor, the filter electronic assembly further includes an inductor mounting base and a positioning plate. The inductor mounting base is mounted on top of the filter circuit board. The inductor mounting base has a mounting cavity with an opening at the top. A positioning post protruding upwards is provided in the middle of the mounting cavity. The toroidal inductor is fitted around the positioning post and located inside the mounting cavity. The horizontal positioning plate is placed on top of the toroidal inductor. The studs of the inductor mounting screws pass through the central through hole of the positioning plate from top to bottom and connect to the screw holes at the upper end of the positioning post.

[0008] Preferably, in order to reliably connect the inductor mounting base and the filter circuit board, the outer peripheral edge of the inductor mounting base is provided with a plurality of mounting lugs protruding in the outward direction, and the studs of the plurality of mounting base mounting screws pass through a plurality of through holes on the filter circuit board from bottom to top and are connected to the screw holes on the plurality of mounting lugs.

[0009] Preferably, to achieve efficient tamper protection, the power filter with connector that is easy to externally solder includes a spring-loaded assembly. The spring-loaded assembly includes a threaded tube with external threads, a telescopic post, and a compression spring. One end of the threaded tube is closed, and the other end is open. The compression spring is placed inside the threaded tube, with one end contacting the closed end of the threaded tube. One end of the telescopic post is placed inside the threaded tube and contacts the other end of the compression spring, but cannot detach from the threaded tube. The other end of the telescopic post passes through the open end of the threaded tube and is located outside the threaded tube. Multiple covers are provided near the edge of the cover plate. The cover plate connecting boss has a transversely penetrating cover plate connecting screw hole. Near the upper end of the outer shell, corresponding to the multiple cover plate connecting bosses, there are transverse outer shell through holes or transverse outer shell screw holes. The threaded tubes of multiple spring-loaded components are respectively installed in the multiple cover plate connecting screw holes, with the ends of their telescopic columns close to the outer shell. The studs of multiple outer shell connecting screws pass through the multiple outer shell through holes or transverse outer shell screw holes from the outside to the inside and are placed in the corresponding cover plate connecting screw holes. The stud ends of the multiple outer shell connecting screws contact the ends of the corresponding telescopic columns. A preferred structure where the telescopic column cannot detach from the threaded tube is as follows: one end of the telescopic column has an enlarged outer diameter to form a telescopic column boss. The telescopic column boss is placed inside the threaded tube, and its end face contacts the other end of the compression spring. The open end of the threaded tube is bent inward to form a retaining ring to block the telescopic column boss.

[0010] Preferably, in order to facilitate the tight installation of the threaded tube of the spring assembly, the cover plate connecting screw hole includes an outer screw hole near the housing and an inner screw hole away from the housing. The diameter of the outer screw hole is smaller than the diameter of the inner screw hole. The threaded tube of the spring assembly is installed in the corresponding inner screw hole, and the telescopic column portion of the spring assembly is located in the outer screw hole.

[0011] Preferably, in order to facilitate the easy disassembly of the cover plate and the outer shell by professional personnel, a gap is left between each of the cover plate connecting bosses and the corresponding inner wall of the outer shell.

[0012] Preferably, in order to achieve better electromagnetic shielding, the upper edge of the outer shell and the lower edge of the cover plate are connected by a concave-convex structure.

[0013] The beneficial effects of this utility model are as follows: This invention, by adding a connector mounting plate, enables independent connection functions between the connector mounting plate and the filter electronic components, between the connector mounting plate and the housing, and between the connector mounting plate and the electrical connector. This allows for the electrical connection between the electrical connector and the filter electronic components to be soldered externally to the housing, and the filter electronic components and electrical connectors to be connected to the connector mounting plate separately. The entire assembly is then placed inside the housing and connected to the housing and cover plate. This facilitates soldering operations between the electrical connector and the filter electronic components from outside the housing, making operation more convenient and avoiding the problem of solder balls and other excess material falling into the housing and affecting filtering performance. Furthermore, by installing a conventional... Along with the cover plate connecting screws, a spring-loaded assembly and a housing connecting screw are added to cooperate with each other. Non-professional personnel usually remove the housing connecting screws directly. At this time, the telescopic column of the spring-loaded assembly will extend into the transverse through hole of the housing under the action of the compression spring. The cover plate and the housing still cannot be separated. Non-professional personnel who are unaware of the internal structure will find it difficult to find the correct way to remove the housing connecting screws. Therefore, even after removing the cover plate connecting screws and the housing connecting screws, non-professional personnel still cannot disassemble the cover plate and the housing. This achieves a highly efficient anti-tamper function and avoids damage to the internal circuitry after non-professional personnel disassemble the filter. It can be used in applications that require anti-tamper functionality. Attached Figure Description

[0014] Figure 1 This is a bottom-view exploded perspective view of the power filter with connector described in this utility model before assembly, which is easy for external soldering. Figure 2 This is a top perspective view of the assembled power filter section with connectors, which is easy to externally solder, as described in this invention. Figure 3 This is a top-view perspective view of the fully assembled power filter with connectors, which is easy to externally solder, as described in this invention. Figure 4 This is a bottom-view perspective view of the fully assembled power filter with connectors, which is easy to externally solder, as described in this invention. Figure 5 This is a front sectional view of the spring-loaded power filter assembly with connector that is easy to externally solder, as described in this invention. Figure 6 This is one of the partial top-view perspective views of the fully assembled power filter with connectors that is easy to externally solder. Figure 7 This is the second partial top-view perspective view of the fully assembled power filter with connectors that is easy to externally solder, as described in this invention. Figure 8 This is the third partial top-view perspective view of the fully assembled power filter with connectors that is easy to externally solder, as described in this invention; Figure 9 yes Figure 8 An enlarged view of the letter "A". Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-9As shown, the power filter with connector that is easy to externally solder on according to this utility model includes a housing 22, a cover plate 2, a filter electronic component (the structure of which is described later), an electrical connector 19, and a horizontal connector mounting plate 14. The filter electronic component is installed inside the housing 22, and the electrical connector 19 is installed on the housing 22 and electrically connected to the filter electronic component. The upper end of the housing 22 is open and the cover plate 2 is installed thereon. The cover plate 2 has a plurality of (four in the figure) vertical cover plate connection through holes (not marked in the figure) near the edge. The lower end of the housing 22 is open to form a lower end through hole 25, and its lower inner wall is provided with There are multiple (four shown in the figure) housing lugs 24 protruding towards the center of the housing 22. The connector mounting plate 14 has multiple (four shown in the figure) vertical mounting plate through holes (not marked in the figure) near its edge. The connector mounting plate 14 is placed inside the housing 22, on the multiple housing lugs 24, and below the filter electronic assembly. The connector mounting plate 14 blocks the lower end through hole 25 of the housing 22, serving as the base plate of the housing 22. Multiple (four shown in the figure) vertical connecting posts 11 are placed inside the housing 22, with their upper ends corresponding to the multiple cover plate connecting through holes and their lower ends corresponding to the... The mounting plate has multiple through holes corresponding to each other. Multiple cover plate connecting screws 1 pass through these through holes from top to bottom and connect to the screw holes at the upper ends of multiple connecting posts 11. Multiple (four shown in the figure) mounting plate connecting screws 26 have their studs passing through the vertical through holes on multiple housing lugs 24 and the mounting plate through holes from bottom to top and connecting to the screw holes at the lower ends of multiple connecting posts 11. The electrical connector 19 has a protruding connector flange 18 near its upper end. The electrical connector 19 has an inner connecting end 17 located above the connector flange 18, and this inner connecting end 17 connects to the filter electronic assembly. For the corresponding electrical connection, the connector mounting plate 14 has a vertical central through hole 15 in the middle. The connector mounting plate 14 has multiple connecting plate mounting screw holes (not marked in the figure) located on the outer periphery of its central through hole 15. The lower end of the electrical connector 19 is placed outside the housing 22 and the inner connecting end 17 passes through the central through hole 15 of the connector mounting plate 14. The connector flange 18 is located below the connector mounting plate 14. The studs of multiple (four in the figure) connector connecting screws 20 pass through multiple (four in the figure) corresponding through holes on the connector flange 18 from bottom to top and are connected to the multiple connecting plate mounting screw holes.

[0016] like Figures 1-9 As shown, this utility model also discloses the following more optimized specific structures: To facilitate the connection between the filter electronic component and the connector mounting plate 14, the filter electronic component includes a filter circuit board 12 and a ring inductor 8. The connector mounting plate 14 has multiple (four in the figure) upward-protruding circuit board connecting posts 16 on its upper surface. The studs of multiple (four in the figure) circuit board connecting screws 9 pass through multiple (four in the figure) vertical through holes on the filter circuit board 12 from top to bottom and connect to the screw holes at the upper end of the multiple circuit board connecting posts 16. The ring inductor 8 is mounted on the filter circuit board 12.

[0017] To reliably install the toroidal inductor 8, the filter electronic assembly also includes an inductor mounting base 10 and a positioning plate 7. The inductor mounting base 10 is mounted on top of the filter circuit board 12. The inductor mounting base 10 has a mounting cavity with an opening at the top (not marked in the figure). The center of the mounting cavity has an upwardly protruding positioning post (not marked in the figure). The toroidal inductor 8 is fitted around the positioning post and located inside the mounting cavity. The horizontal positioning plate 7 is placed on top of the toroidal inductor 8. The stud of the inductor mounting screw 6 passes through the central through hole of the positioning plate 7 from top to bottom and connects to the screw hole at the upper end of the positioning post.

[0018] In order to reliably connect the inductor mounting base 10 and the filter circuit board 12, the outer peripheral edge of the inductor mounting base 10 is provided with a plurality of mounting lugs (not marked in the figure) protruding outward in the peripheral direction. The studs of a plurality of mounting base mounting screws 13 (two in the figure) pass through a plurality of through holes on the filter circuit board 12 from bottom to top and are connected to the screw holes on the plurality of mounting lugs.

[0019] Preferably, to achieve efficient anti-tampering function, the power filter with connector that is easy to externally solder also includes a spring-loaded assembly 3. The spring-loaded assembly 3 includes a threaded tube 32 with external threads, a telescopic post 36, and a compression spring 33. One end of the threaded tube 32 is closed and the other end is open. The compression spring 33 is placed inside the threaded tube 32 and one end of it contacts the closed end of the threaded tube 32. One end of the telescopic post 36 is placed inside the threaded tube 32 and contacts the other end of the compression spring 33 and cannot detach from the threaded tube 32. The other end of the telescopic post 36 passes through the open end of the threaded tube 32 and is placed outside the threaded tube 32. Multiple (four in the figure) cover plate connecting protrusions are provided on the underside of the cover plate 2 near the edge. Platform 4, the cover plate connecting boss 4 is provided with a transverse through cover plate connecting screw hole 5. The outer shell 22 is provided with transverse outer shell through holes 21 (or outer shell transverse screw holes 21) near the upper end and corresponding to the multiple cover plate connecting bosses 4. The threaded tubes 32 of multiple (four in the figure) spring pin assemblies 3 are respectively installed in multiple cover plate connecting screw holes 5, and the ends of their telescopic pins 36 are close to the outer shell 22. The studs of multiple outer shell connecting screws 23 pass through multiple outer shell transverse through holes 21 (or outer shell transverse screw holes 21) from the outside to the inside and are placed in the corresponding cover plate connecting screw holes 5. The stud ends of multiple outer shell connecting screws 23 are respectively in contact with the ends of the corresponding telescopic pins 36. In the above structure, if the outer shell has a transverse through hole 21, the stud of the outer shell connecting screw 23 is threaded to the cover plate connecting screw hole 5. If the outer shell has a transverse screw hole 21, the stud of the outer shell connecting screw 23 is threaded to the outer shell transverse screw hole 21. The structure in the figure adopts the outer shell transverse through hole 21. The preferred structure in which the telescopic column 36 cannot be separated from the threaded tube 32 is: the outer diameter of one end of the telescopic column 36 is increased to form a telescopic column boss 34. The telescopic column boss 34 is placed inside the threaded tube 32 and its end face contacts the other end of the compression spring 33. The open end of the threaded tube 32 is bent inward to form a retaining ring 35 for blocking the telescopic column boss 34. The outer wall of the closed end of the threaded tube 32 is provided with a tool groove 31.

[0020] To facilitate tight installation of the threaded tube 32 of the spring assembly 3, the cover plate connecting screw hole 5 includes an outer screw hole near the outer casing 22 (only). Figures 6-9 (visible and not marked in the diagram) and the inner screw hole away from the housing 22 (only) Figures 6-9 (See but not marked in the figure) The diameter of the outer screw hole is smaller than that of the inner screw hole. The threaded tube 32 of the spring post assembly 3 is installed in the corresponding inner screw hole and abuts against the step between the outer screw hole and the inner screw hole. The telescopic post 36 of the spring post assembly 3 is located in the outer screw hole.

[0021] To facilitate the smooth disassembly of cover plate 2 and outer shell 22 by professional personnel, a gap is left between each cover plate connecting boss 4 and the corresponding inner wall of outer shell 22. This gap allows the end of telescopic column 36 to be located within the gap when the stud end of the outer shell connecting screw 23 abuts against the telescopic column 36, so that it can be disassembled upward along with cover plate 2 and detached from outer shell 22.

[0022] To achieve better electromagnetic shielding, the upper edge of the outer shell 22 and the lower edge of the cover plate 2 are connected by a concave-convex structure.

[0023] like Figures 1-9 As shown, during assembly, the filter electronic components are assembled first, then the electrical connector 19 is connected to the connector mounting plate 14, and then the electrical connection between the electrical connector 19 and the filter electronic components is soldered. Next, the filter circuit board 12 is connected to the connector mounting plate 14, and then the entire assembly is placed inside the housing 22. Then, the connecting post 11, the connector mounting plate 14, and the housing 22 are connected, and finally, the cover plate 22 is connected to the connecting post 11, thus completing the assembly of the entire filter. After assembly, the housing connecting screw 23 presses against the end of the telescopic post 36 of the corresponding spring post assembly and positions it within the cover plate connecting screw hole 5. Because of the action of the housing connecting screw 23, the cover plate 2 cannot be separated upwards from the housing 22. Figure 6 As shown, this enables the soldering operation between the electrical connector 19 and the filter electronic components outside the housing 22, making the operation more convenient and avoiding the problem of excess solder balls and other debris falling into the housing 22 and affecting the filtering performance.

[0024] If a professional worker needs to disassemble the cover plate 2 and the outer shell 22 according to actual needs, first remove the multiple cover plate connecting screws 1, then remove the outer shell connecting screws 23. Loosen the outer shell connecting screws 23 but do not remove them completely, ensuring that the contact position between the end of the stud and the end of the corresponding telescopic post 36 is in the gap between the cover plate connecting boss 4 and the corresponding inner wall of the outer shell 22. At this point, the cover plate 2 can move upwards and separate from the outer shell 22, achieving the disassembly purpose. Figure 8 and Figure 9 As shown.

[0025] If a non-professional worker attempts to disassemble the cover plate 2 and the outer casing 22 without authorization, they would typically remove all the connecting screws 23 of the outer casing. In this case, the telescopic column 36 moves outward under the action of the compression spring 33, and the end of the telescopic column 36 enters the corresponding transverse through hole 21 of the outer casing (or the transverse screw hole 21 of the outer casing). At this point, the cover plate 2 cannot move upward due to the telescopic column 36, and the cover plate 2 and the outer casing 22 remain inseparable. Figure 7As shown, the purpose of disassembly cannot be achieved. Non-professional personnel who are unaware of the internal structure will find it difficult to find the correct way to disassemble the outer shell connecting screw 23. Therefore, even after removing the cover plate connecting screw 1 and the outer shell connecting screw 23, non-professional personnel still cannot disassemble the cover plate 2 and the outer shell 22, thus achieving an efficient anti-tamper function and avoiding damage to the internal circuit after non-professional personnel disassemble the filter. It can be used in applications that require anti-tamper function.

[0026] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A power filter with connector for easy external soldering, comprising a housing, a cover plate, a filtering electronic component, and an electrical connector, wherein the filtering electronic component is mounted inside the housing, the electrical connector is mounted on the housing and electrically connected to the filtering electronic component, and the upper end of the housing is open and the cover plate is mounted thereon, characterized in that: The cover plate has multiple vertical cover plate connection through holes near its edge. The lower end of the housing is open, and its lower inner wall has multiple housing lugs protruding towards the center of the housing. The power filter with connector for easy external soldering also includes a horizontal connector mounting plate. The connector mounting plate has multiple vertical mounting plate through holes near its edge. The connector mounting plate is placed inside the housing, on the multiple housing lugs, and below the filter electronic components. Multiple vertical connecting posts are placed inside the housing, with their upper ends corresponding to the multiple cover plate connection through holes and their lower ends corresponding to the multiple mounting plate through holes. Multiple cover plate connecting screws pass through the multiple cover plate connection through holes from top to bottom and connect to the screw holes at the upper ends of the multiple connecting posts. The studs of the multiple mounting plate connecting screws are arranged sequentially from bottom to top. After passing through the vertical through holes on the multiple housing lugs and the multiple through holes on the mounting plate, the connector is connected to the screw holes at the lower ends of the multiple connecting posts. The electrical connector has an outwardly protruding connector flange near its upper end. The inner connecting end of the electrical connector is located above the connector flange and is electrically connected to the corresponding filter electronic component. The middle of the connector mounting plate has a vertical central through hole. The connector mounting plate has multiple connecting plate mounting screw holes located around the central through hole. The lower end of the electrical connector is placed outside the housing, and the inner connecting end passes through the central through hole of the connector mounting plate. The connector flange is located below the connector mounting plate. The studs of the multiple connector connecting screws pass through the multiple corresponding through holes on the connector flange from bottom to top and are connected to the multiple connecting plate mounting screw holes.

2. The power filter with connector that is easy to externally solder as described in claim 1, characterized in that: The filtering electronic component includes a filtering circuit board and a toroidal inductor. The connector mounting plate has multiple upward-protruding circuit board connecting posts on its surface. The studs of multiple circuit board connecting screws pass through multiple vertical through holes on the filtering circuit board from top to bottom and connect to the screw holes at the upper ends of the multiple circuit board connecting posts. The toroidal inductor is mounted on the filtering circuit board.

3. The power filter with connector that is easy to externally solder as described in claim 2, characterized in that: The filtering electronic assembly also includes an inductor mounting base and a positioning plate. The inductor mounting base is mounted on top of the filtering circuit board. The inductor mounting base has a mounting cavity with an opening at the top. A positioning post protruding upward is provided in the middle of the mounting cavity. The ring inductor is fitted around the positioning post and located inside the mounting cavity. The horizontal positioning plate is placed on top of the ring inductor. The stud of the inductor mounting screw passes through the central through hole of the positioning plate from top to bottom and connects to the screw hole at the upper end of the positioning post.

4. The power filter with connector that is easy to externally solder as described in claim 3, characterized in that: The outer peripheral edge of the inductor mounting base is provided with multiple mounting lugs that protrude outward in the peripheral direction. The studs of the multiple mounting base mounting screws pass through multiple through holes on the filter circuit board from bottom to top and are connected to the screw holes on the multiple mounting lugs.

5. The power filter with connector that is easy to externally solder as described in any one of claims 1-4, characterized in that: The power filter with connector for easy external soldering also includes a spring-loaded assembly. The spring-loaded assembly includes a threaded tube with external threads, a telescopic post, and a compression spring. One end of the threaded tube is closed, and the other end is open. The compression spring is placed inside the threaded tube, with one end contacting the closed end of the threaded tube. One end of the telescopic post is placed inside the threaded tube and contacts the other end of the compression spring, but cannot detach from the threaded tube. The other end of the telescopic post passes through the open end of the threaded tube and is located outside the threaded tube. Multiple cover plate connecting bosses are provided near the edge of the cover plate. The cover plate connecting boss is provided with a transversely penetrating cover plate connecting screw hole. The outer shell is provided with transverse outer shell through holes or transverse outer shell screw holes at positions near the upper end and corresponding to the multiple cover plate connecting bosses. The threaded tubes of the multiple spring pin assemblies are respectively installed in the multiple cover plate connecting screw holes, and the ends of their telescopic pins are close to the outer shell. The studs of the multiple outer shell connecting screws pass through the multiple outer shell through holes or transverse outer shell screw holes from the outside to the inside and are placed in the corresponding cover plate connecting screw holes. The stud ends of the multiple outer shell connecting screws contact the ends of the corresponding telescopic pins.

6. The power filter with connector that is easy to externally solder as described in claim 5, characterized in that: The cover plate connecting screw hole includes an outer screw hole near the outer shell and an inner screw hole away from the outer shell. The diameter of the outer screw hole is smaller than the diameter of the inner screw hole. The threaded tube of the spring column assembly is installed in the corresponding inner screw hole, and the telescopic column portion of the spring column assembly is located in the outer screw hole.

7. The power filter with connector that is easy to externally solder as described in claim 5, characterized in that: A gap is left between each of the cover plate connecting bosses and the corresponding inner wall of the outer shell.

8. The power filter with connector that is easy to externally solder as described in any one of claims 1-4, characterized in that: The upper edge of the outer shell and the lower edge of the cover plate are connected by a concave-convex structure.

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