Highly tamper-resistant power filter with connector

Abstract

The application discloses a high-efficiency anti-disassembly power filter with a connector and belongs to the technical field of production of the power filter with the connector, which comprises a shell, a cover plate, a filter electronic assembly, an electric connector and a spring column assembly, the spring column assembly comprises a threaded pipe provided with external threads, a telescopic column and a compression spring, one end of the telescopic column is arranged in the threaded pipe and is pressed against the compression spring, and the other end of the telescopic column is located outside the threaded pipe, a plurality of cover plate connecting screws are connected with the shell after penetrating through a plurality of cover plate connecting through holes of the plurality of cover plates, a plurality of cover plate connecting bosses are arranged on the lower surface of the cover plate, cover plate connecting screw holes are arranged on the cover plate connecting bosses, the threaded pipes of the plurality of spring column assemblies are respectively arranged in the corresponding cover plate connecting screw holes, and a plurality of shell connecting screws are arranged in the cover plate connecting screw holes and are in contact with the end portions of the corresponding telescopic columns after penetrating through a plurality of shell transverse through holes of the shell. The high-efficiency anti-disassembly function is realized by increasing the mutually matched spring column assembly and the shell connecting screw, and the application requirement is met.

Description

Technical Field

[0001] This invention belongs to the field of manufacturing technology of power filters with connectors, and specifically relates to a high-efficiency, tamper-proof power filter with connectors. 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] In some critical applications, it's crucial to avoid disassembling power filters with connectors by non-professional personnel to prevent product malfunctions or even scrapping. However, traditional power filters with connectors lack corresponding anti-tampering structures; their housings and covers are simply connected by conventional screws, allowing anyone to easily disassemble them. Therefore, they are unsuitable for applications requiring anti-tamper functionality. Furthermore, the connecting flanges on the electrical connectors of traditional power filters are typically directly connected to the connecting through-holes on the filter housing using screws. Since the size of the filtering electronic components is larger than these through-holes, this structure necessitates first connecting the electrical 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 limited space but also easily leads to the accumulation of solder balls and other debris inside, potentially causing short circuits and other circuit malfunctions that affect filtering performance. Summary of the Invention

[0004] The purpose of this invention is to provide a highly efficient, tamper-proof power filter with connectors that is difficult for non-professional personnel to disassemble from the cover and housing in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A high-efficiency, tamper-proof power filter with connector 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 the cover plate is installed thereon. The high-efficiency, tamper-proof power filter with connector also includes a spring assembly. The spring 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, and one end of the spring contacts the closed end of the threaded tube. One end of the telescopic post has an increased outer diameter to form a telescopic post boss. The telescopic post boss is placed inside the threaded tube, and its end face contacts the other end of the compression spring. The telescopic post passes through the open end of the threaded tube, and the open end of the threaded tube is bent inward to block the... The telescopic column boss has a retaining ring. The cover plate has multiple vertical cover plate connecting through holes near the edge. Multiple cover plate connecting screws pass through the multiple cover plate connecting through holes and are connected to the outer shell. The cover plate has multiple cover plate connecting bosses near the edge on the bottom. The cover plate connecting bosses have transversely penetrating cover plate connecting screw holes. The outer shell has transverse outer shell through holes or transverse outer shell screw holes near the upper end and corresponding to the multiple cover plate connecting bosses. The threaded tubes of multiple spring column assemblies are installed in the multiple cover plate connecting screw holes, and the ends of their telescopic columns are close to the outer shell. The studs of multiple outer shell connecting screws pass through the multiple outer shell transverse 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.

[0007] 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.

[0008] 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.

[0009] Preferably, to facilitate the function of first assembling the electrical connector and filter electronic components externally and then connecting the whole assembly to the housing, the lower end of the housing is open, and its lower inner wall is provided with multiple housing lugs protruding towards the center of the housing. The high-efficiency tamper-proof power filter with connector also includes a horizontal connector mounting plate. The connector mounting plate is provided with multiple vertical mounting plate through holes near its edge. The connector mounting plate is placed inside the housing, located 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 connecting through holes and their lower ends corresponding to the multiple mounting plate through holes. Multiple cover plate connecting screws are connected to the screw holes at the upper ends of the multiple connecting posts, and the studs of the multiple mounting plate connecting screws pass through the holes sequentially from bottom to top. The multiple vertical through holes on the housing lugs and the multiple through holes on the mounting plate are 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 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. The connector mounting plate has multiple connecting plate mounting screw holes located around its 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.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] The beneficial effects of this invention are as follows:

[0015] This invention, by installing conventional cover plate connecting screws between the outer shell and the cover plate, adds a cooperating spring-loaded assembly and outer shell connecting screws. Non-professional personnel, after removing the outer shell connecting screws, typically remove the cover plate directly. At this point, the telescopic column of the spring-loaded assembly extends into or into the transverse through-hole of the outer shell under the action of a compression spring, preventing the cover plate and outer shell from separating. Furthermore, non-professional personnel unfamiliar with the internal structure would find it difficult to correctly disassemble the outer shell connecting screws. Therefore, even after removing the cover plate connecting screws and the outer shell connecting screws, non-professional personnel still cannot disassemble the cover plate and outer shell, thus achieving a highly efficient anti-tamper function and preventing damage to the internal circuitry by non-professional personnel disassembling the filter. It can be used in applications requiring tamper-proof functionality. By adding a connector mounting plate, independent connection functions can be achieved 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 the electrical connections between the electrical connector and the filter electronic components to be soldered outside the housing, and the filter electronic components and electrical connectors to be connected to the connector mounting plate separately. Then, the whole assembly is placed inside the housing and connected to the housing and cover plate. This facilitates the soldering operation between the electrical connector and the filter electronic components from outside the housing, making the operation more convenient and avoiding the problem of solder balls and other waste falling into the housing and affecting the filtering performance. Attached Figure Description

[0016] Figure 1 This is a bottom-view exploded perspective view of the high-efficiency tamper-proof power filter with connector described in this invention before assembly;

[0017] Figure 2 This is a top-view perspective view of the assembled high-efficiency tamper-proof power filter with connector described in this invention;

[0018] Figure 3 This is a top-view perspective view of the fully assembled high-efficiency tamper-proof power filter with connector described in this invention;

[0019] Figure 4 This is a bottom-view perspective view of the fully assembled high-efficiency tamper-proof power filter with connector described in this invention;

[0020] Figure 5 This is a front sectional view of the spring-loaded assembly with connector for the high-efficiency tamper-proof power filter described in this invention.

[0021] Figure 6 This is one of the partial top-view perspective views of the fully assembled high-efficiency tamper-proof power filter with connector described in this invention;

[0022] Figure 7 This is the second partial top-view perspective view of the fully assembled high-efficiency tamper-proof power filter with connector described in this invention;

[0023] Figure 8 This is the third partial top-view perspective view of the fully assembled high-efficiency tamper-proof power filter with connector described in this invention;

[0024] Figure 9 yes Figure 8 An enlarged view of the letter "A". Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-9As shown, the high-efficiency tamper-proof power filter with connector of the present invention includes a housing 22, a cover plate 2, a filtering electronic component (the structure of which is described below), an electrical connector 19, and a spring assembly 3. The filtering electronic component is installed inside the housing 22, and the electrical connector 19 is installed on the housing 22 and electrically connected to the filtering electronic component. The upper end of the housing 22 is open and is fitted with the cover plate 2. The spring assembly 3 includes a threaded tube 32 with external threads, a telescopic column 36, and a compression spring 33. The threaded tube 32... One end is closed and the other end is open. A compression spring 33 is placed inside a threaded tube 32, with one end of the spring in contact with the closed end of the threaded tube 32. The outer diameter of one end of a telescopic column 36 is increased to form a telescopic column boss 34. The telescopic column boss 34 is placed inside the threaded tube 32, with its end face in contact with the other end of the compression spring 33. The telescopic column 36 passes through the open end of the threaded tube 32. The open end of the threaded tube 32 is bent inward to form a retaining ring 35 to block the telescopic column boss 34. A screwdriver groove 31 is provided on the outer wall of the closed end of the threaded tube 32. The cover plate 2 has multiple (four in the figure) vertical cover plate connecting through holes (not marked in the figure) near its edge. Multiple (four in the figure) cover plate connecting screws 1 pass through the multiple cover plate connecting through holes and are connected to the outer shell 22. The cover plate 2 has multiple (four in the figure) cover plate connecting bosses 4 near its bottom edge. The cover plate connecting bosses 4 have horizontally penetrating cover plate connecting screw holes 5. The outer shell 22 has horizontal outer shell through holes 21 (or outer shell horizontal screw holes 21) near its 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 installed in the 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 the multiple outer shell horizontal through holes 21 (or outer shell horizontal 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 the multiple outer shell connecting screws 23 are 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 uses the outer shell with a transverse through hole 21.

[0027] like Figures 1-9 As shown, the present invention also discloses the following more optimized specific structures:

[0028] 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.

[0029] 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.

[0030] To facilitate the function of first assembling the external electrical connector 19 and the filter electronic components and then connecting them to the housing 22 as a whole, the lower opening of the housing 22 forms a lower housing through hole 25, and its lower inner wall is provided with multiple (four in the figure) housing lugs 24 protruding towards the center of the housing 22. The high-efficiency anti-tamper power filter with connector also includes a horizontal connector mounting plate 14. The connector mounting plate 14 is provided with multiple (four in the figure) vertical mounting plate through holes (not marked in the figure) near the edge. The connector mounting plate 14 is placed inside the housing 22 and is located on the multiple housing lugs 24 and below the filter electronic components. The connector mounting plate 14 blocks the lower housing through hole 25 of the housing 22 as the bottom plate of the housing 22. Multiple (four in the figure) vertical connecting posts 11 are placed inside the housing 22, and their upper ends correspond to multiple cover plate connecting through holes respectively, and their lower ends correspond to multiple mounting plate through holes respectively. Multiple cover plate connecting screws 1 are connected to the screw holes at the upper ends of multiple connecting posts 11 respectively. Multiple (four in the figure) The studs of the four mounting plate connecting screws 26 pass through the vertical through holes on the multiple housing lugs 24 and the multiple mounting plate through holes from bottom to top, and then connect to the screw holes at the lower end of the multiple connecting posts 11. The electrical connector 19 has an outwardly protruding connector flange 18 near the upper end. The inner connecting end 17 of the electrical connector 19 is located above the connector flange 18 and is electrically connected to the corresponding filter electronic component. The middle part of the connector mounting plate 14 has a vertical central through hole 15. 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 the multiple (four in the figure) connector connecting screws 20 pass through the multiple (four in the figure) corresponding through holes on the connector flange 18 from bottom to top and then connect to the multiple connecting plate mounting screw holes.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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 7 As 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.

[0038] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the technical solutions of the present invention. 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 the patent of the present invention.

Claims

1. A high-efficiency, tamper-proof power filter with a connector, comprising a housing, a cover plate, a filtering electronic component, and an electrical connector, wherein the filtering electronic component is installed inside the housing, the electrical connector is installed 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 installed thereon, characterized in that: The high-efficiency, tamper-proof power filter with connector further includes a spring-loaded assembly. This assembly comprises 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 has an enlarged outer diameter, forming a telescopic post boss. This boss is placed inside the threaded tube, and its end face contacts the other end of the compression spring. The telescopic post passes through the open end of the threaded tube, and the open end of the threaded tube is bent inward to form a retaining ring that blocks the telescopic post boss. The cover plate has multiple vertical cover plate connecting through holes near its edge, and multiple cover plate connecting screws pass through multiple of these holes. After the cover plate connects to the through hole, it is connected to the outer shell. The cover plate has multiple cover plate connecting bosses near the edge on its lower side. The cover plate connecting bosses have transverse through cover plate connecting screw holes. The outer shell has transverse outer shell through holes or transverse outer shell screw holes 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.

2. The high-efficiency tamper-proof power filter with connector according to claim 1, 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.

3. The high-efficiency tamper-proof power filter with connector according to claim 1, characterized in that: A gap is left between each of the cover plate connecting bosses and the corresponding inner wall of the outer shell.

4. The high-efficiency tamper-proof power filter with connector according to any one of claims 1-3, characterized in that: 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 high-efficiency, tamper-proof power filter with connector 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 connecting through holes and their lower ends corresponding to the multiple mounting plate through holes. Multiple cover plate connecting screws are connected to the screw holes at the upper ends of the multiple connecting posts. The studs of the multiple mounting plate connecting screws pass through the vertical through holes on the multiple housing lugs and the multiple mounting plate through holes from bottom to top. After the mounting plate has a through hole, it connects to the screw holes at the lower ends of the multiple connecting posts. The electrical connector has a protruding connector flange near its upper end. The electrical connector has an inner connecting end located above the connector flange, and this inner connecting end is electrically connected to the corresponding filter electronic component. The connector mounting plate has a vertical central through hole in its middle. The connector mounting plate has multiple connecting plate mounting screw holes located around the outer periphery of its 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 then connect to the multiple connecting plate mounting screw holes.

5. The high-efficiency tamper-proof power filter with connector according to claim 4, 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.

6. The high-efficiency tamper-proof power filter with connector according to claim 5, 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.

7. The high-efficiency tamper-proof power filter with connector according to claim 6, 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.

8. The high-efficiency tamper-proof power filter with connector according to any one of claims 1-3, 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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