Floating type filtering electric connector

Abstract

The utility model discloses a floating type filtering electric connector, which comprises a plug and a socket, and is characterized in that the plug comprises a plug metal shell, and a pin contact element, a plate type capacitor, a first insulating pressure plate and a second insulating pressure plate which are arranged in the plug metal shell; the socket comprises a socket metal shell and jack contact elements installed in the socket metal shell, the lower end of the jack metal shell is connected with the upper end of the pin metal shell, the upper ends of the multiple pin contact elements are connected with the lower ends of the multiple jack contact elements in an inserted mode, the middle sections of the pin contact elements form pin large-diameter sections, and the middle sections of the pin contact elements form pin large-diameter sections. The lower part of the large-diameter section of the contact pin is provided with a contact pin convex ring, a clamping spring in tight contact is arranged between the outer wall of the lower part of the large-diameter section of the contact pin and the hole wall of the through hole of the first pressing plate, and the contact pin contact piece is conductively connected with the hole wall of the corresponding inner electrode through hole of the plate-type capacitor through a pawl spring. According to the utility model, the pin contact element has a floating function, the matching force is small in the process of butting with the jack contact element, and the use of the product is facilitated.

Description

Technical Field

[0001] This utility model relates to a filter electrical connector with electrical connection and filtering functions, and more particularly to a floating filter electrical connector. Background Technology

[0002] As electromagnetic interference signals in the working environment of instruments and equipment gradually increase, the requirements for the anti-electromagnetic interference performance of instruments and equipment are becoming higher and higher. Filtering electrical connectors with filtering functions are widely used in equipment, and the application environment and scenarios of filtering electrical connectors have become more diversified. Their functions have also evolved from a single filtering function to a multi-functional function, such as surge protection.

[0003] Traditional filter connectors are generally integrally sealed structures, mainly composed of a metal shell, an insulating mounting plate, plate capacitors (also known as ceramic array plate capacitors, plate feedthrough ceramic capacitors, plate filter ceramic capacitors, etc., whose basic structure has multiple capacitor through-holes on a ceramic dielectric plate with an internal electrode paste layer on the hole wall to form the internal electrode through-hole, and a resistive paste layer on the dielectric plate that is grounded), contacts (pins or sockets, generally pins), wires, potting compound, wire sealant, and sealing body (both the wire sealant and sealing body are insulators). The plate capacitors are connected to the shell using conductive adhesive, the connector interior is filled and cured with potting compound, the insulating mounting plate is bonded to the shell with adhesive, and the contacts are connected to other components by soldering.

[0004] The aforementioned traditional filter connectors have the following drawbacks: Traditional filter connectors use potting compound to fix the contacts in place, and the contacts do not have floating properties. When the socket and plug are mated, the mating force is large, which is not conducive to product use.

[0005] In addition, the traditional filter connectors mentioned above, which use potting, adhesive bonding, and welding to connect and assemble components, have the following drawbacks: the products cannot be disassembled or repaired, especially the contacts and related components with high failure rates. Once a problem occurs, the only solution is to replace the entire filter connector or the connector assembly containing the contact, resulting in significant material waste, high product costs, and hindering cost reduction and efficiency improvement strategies. The potting and adhesive bonding materials have long curing times, leading to long product assembly cycles. Most adhesives require high-temperature curing, which, due to the high temperature and long curing time, can cause changes in the dielectric constant of the ceramic material in plate capacitors, potentially resulting in irreversible changes in product capacity after high-temperature curing. Furthermore, it is difficult to ensure complete consistency in the amount and uniformity of adhesive application, while the quality of welding heavily depends on the skill level of the welders, leading to inconsistencies between batches and individual products, which is detrimental to maintaining product quality consistency. Utility Model Content

[0006] The purpose of this invention is to provide a floating filter electrical connector with a smaller mating force during insertion in order to solve the above problems.

[0007] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0008] A floating-type filter electrical connector includes a plug and a socket. The plug includes a plug metal housing and pin contacts and a plate capacitor mounted within the plug metal housing. With the axial direction of the cylindrical plug metal housing as vertical, multiple vertical pin contacts pass through multiple internal electrode through holes on the horizontally oriented plate capacitor. The socket includes a socket metal housing and socket contacts mounted within the socket metal housing. The lower end of the socket metal housing is connected to the upper end of the plug metal housing. The upper ends of the multiple pin contacts are respectively inserted into the lower ends of the multiple socket contacts. The upper ends of the multiple socket contacts are respectively connected to multiple wires. The plug also includes a first insulating plate and a second insulating plate mounted within the plug metal housing and sequentially located above the plate capacitor. The first insulating plate has multiple... The first pressure plate has a through hole, and the second insulating pressure plate has multiple second pressure plate through holes. The diameter of the first pressure plate through hole is larger than the diameter of the second pressure plate through hole. The outer diameter of the middle section of the pin contact increases to form a large-diameter pin section. The lower part of the large-diameter pin section has a pin protrusion ring that protrudes outward in the circumferential direction. Multiple pin contacts pass through multiple first pressure plate through holes and multiple second pressure plate through holes respectively. The large-diameter pin section is located in both the first pressure plate through hole and the second pressure plate through hole. The pin protrusion ring is located in the lower part of the first pressure plate through hole. The lower outer wall of the large-diameter pin section is provided with a ring-shaped retaining spring in close contact with the hole wall of the first pressure plate through hole, and the upper part of the retaining spring is pressed by the second insulating pressure plate. The pin contact is electrically connected to the hole wall of the corresponding inner electrode through hole of the plate capacitor through a ring-shaped claw spring.

[0009] Preferably, to achieve mechanical positioning of the components within the plug, the plug further includes a plug insulating mounting plate installed inside the plug metal housing and located below the plate capacitor, and an insulating sealing body located above the second insulating pressure plate. Multiple pin contacts pass through multiple corresponding through holes on the plug insulating mounting plate and multiple corresponding through holes on the insulating sealing body. The upper part of the plug insulating mounting plate protrudes outward to form a first convex ring. A first annular step is provided on the inner circumference of the plug metal housing at a position corresponding to the first convex ring, with the first convex ring located above the first annular step. The upper part of the first insulating pressure plate protrudes outward to form a second convex ring. A second annular step is provided on the inner circumference of the plug metal housing at a position corresponding to the second convex ring, with the second convex ring located above the second annular step. The lower part of the second insulating pressure plate protrudes outward to form a third convex ring. A retaining ring is installed inside the plug metal housing and located above the third convex ring.

[0010] Preferably, in order to better protect the plate capacitor and achieve better insulation, an upper insulating pad is provided between the top of the plate capacitor and the first insulating pressure plate, and the pin contact passes through the corresponding through hole on the upper insulating pad; a lower insulating pad is provided between the bottom of the plate capacitor and the plug insulating mounting plate, and the pin contact passes through the corresponding through hole on the lower insulating pad; an insulating seal is provided below the plug insulating mounting plate, and the pin contact passes through the corresponding through hole on the insulating seal.

[0011] Preferably, to achieve mechanical positioning of the components within the socket and to enable additional electrical functions such as surge protection, the socket further includes, in order of arrangement from bottom to top, a socket insulating mounting plate, a third insulating pressure plate, a printed circuit board, a conductive rubber ring, and a housing cover plate, all installed within the socket metal housing. The upper part of the socket insulating mounting plate protrudes outwards to form a fourth convex ring. A third annular step is provided on the inner circumference of the socket metal housing at a position corresponding to the fourth convex ring, with the fourth convex ring positioned above the third annular step. A convex ring protrudes outwards from the center of each socket contact. The third insulating pressure plate has multiple third pressure plate through holes, with the lower diameter of each through hole increasing to form a pressure plate groove. Multiple socket contacts pass through multiple corresponding through holes on the socket insulating mounting plate, multiple third pressure plate through holes on the third insulating pressure plate, and the printed circuit board. Corresponding to the through holes, multiple socket contacts are electrically connected to the corresponding through hole walls on the printed circuit board. Multiple socket protrusions are placed in multiple pressure plate recesses. The housing cover is installed on the upper end of the socket metal housing. The upper outer periphery of the housing cover protrudes outward to form a cover plate protrusion. The cover plate protrusion is placed above the upper end of the socket metal housing. Printed lines are provided on the upper surface of the printed circuit board near the edge, and conductive rubber rings are installed on them. Surge protection diodes and other electrical components can be installed on the printed circuit board as needed. The housing cover extends downward near the edge, and its lower end is above and in close contact with the conductive rubber ring. Multiple transverse connecting screws pass through multiple through holes on the socket metal housing and are connected to multiple screw holes on the housing cover. The outer ends of multiple wires pass through the corresponding through holes on the housing cover and are placed above the housing cover.

[0012] Preferably, in order to enable the socket contact to have a floating function during use, thereby achieving a smaller mating force, an annular elastic piece is provided on the socket contact above the corresponding through hole on the printed circuit board. Gaps are left between the socket contact and the walls of the multiple corresponding through holes on the socket insulating mounting plate, between the socket contact and the walls of the multiple through holes of the third pressure plate, and between the socket contact and the bottom of the multiple pressure plate grooves.

[0013] Preferably, for ease of assembly and application, the upper outer wall of the plug metal housing is provided with a protruding plug housing flange, and the lower outer wall of the socket metal housing is provided with a protruding socket housing flange. The lower inner wall of the socket housing flange is provided with an annular groove. The plug housing flange is placed in the annular groove, and multiple vertical locking screws pass through multiple through holes on the plug housing flange from bottom to top and are connected to multiple screw holes on the bottom of the annular groove.

[0014] Preferably, in order to enable the plate capacitor to be reliably grounded for a long time, a grounding spring is installed between the outer circumference of the plate capacitor and the inner circumference of the plug metal housing and they are in close contact.

[0015] Preferably, in order to facilitate application and ensure that the grounding spring and the plate capacitor are not misaligned, the grounding spring is formed by bending a strip spring into a circular spring, and the lower or upper side of the grounding spring is provided with a limiting flange that protrudes inward.

[0016] The beneficial effects of the present invention are:

[0017] This invention uses snap rings and claw springs to mechanically position and electrically connect the pin contacts, allowing them a suitable range of motion and automatic reset during use. This gives the pin contacts a floating function, resulting in less mutual force during mating with the socket contacts, which is beneficial for product use. The pin contacts and plate capacitors are mechanically mounted inside the plug metal housing via a plug insulating mounting plate, a first insulating pressure plate, and a second insulating pressure plate. A grounding spring is installed between the plate capacitor and the inner wall of the plug metal housing to achieve conductive grounding. The socket contacts are connected via a socket insulating mounting plate and a third insulating pressure plate. The plate and housing cover are mechanically positioned within the socket's metal housing, allowing all components to be assembled together mechanically without the need for potting compound, adhesives, or welding. This facilitates rapid assembly and disassembly, improving production efficiency and enabling product repair by replacing individual components, thus increasing repair efficiency and significantly reducing costs. The excellent elasticity of the grounding spring ensures long-term reliable grounding of the plate capacitor, guaranteeing filtering performance and avoiding the drawbacks of adhesives and welding, such as long assembly cycles, high welding temperatures, damage to electrical components, and assembly quality dependent on operator skill and experience. Attached Figure Description

[0018] Figure 1 This is a perspective view of the fully assembled floating filter electrical connector described in this utility model;

[0019] Figure 2 This is a three-dimensional view of the floating filter electrical connector of the present invention after partial assembly;

[0020] Figure 3 This is an exploded perspective view of the plug metal housing and internal components of the floating filter electrical connector described in this invention before assembly;

[0021] Figure 4 This is a perspective view of the grounding spring of the floating filter electrical connector described in this invention;

[0022] Figure 5This is an exploded perspective view of the metal housing of the floating filter electrical connector of the present invention and its internal components before assembly;

[0023] Figure 6 This is a front sectional view of the fully assembled floating filter electrical connector described in this invention. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figures 1-6 As shown, the floating filter connector of this utility model includes a plug and a socket. The plug includes a plug metal housing 7 and pin contacts 8 and a plate capacitor 25 installed inside the plug metal housing 7. With the axial direction of the cylindrical plug metal housing 7 as the vertical direction, multiple vertical pin contacts 8 pass through multiple internal electrode through holes (not marked in the figure) on the horizontal plate capacitor 25. The socket includes a socket metal housing 5 and socket contacts 35 installed inside the socket metal housing 5. The lower end of the socket metal housing 5 is connected to the upper end of the plug metal housing 7. The upper ends of multiple pin contacts 8 are respectively inserted into the lower ends of multiple socket contacts 35. The upper ends of multiple socket contacts 35 are respectively connected to multiple wires 1. The plug also includes a first insulating pressure plate 19 and a second insulating pressure plate 13 installed inside the plug metal housing 7 and sequentially located above the plate capacitor 25. The first insulating pressure plate 19... The upper part has multiple first pressure plate through holes 18, and the second insulating pressure plate 13 has multiple second pressure plate through holes 14. The diameter of the first pressure plate through holes 18 is larger than the diameter of the second pressure plate through holes 14. The outer diameter of the middle section of the pin contact 8 is increased to form a large diameter section 20 of the pin. The lower part of the large diameter section 20 of the pin has a pin protrusion ring 21 that protrudes outward in the circumferential direction. Multiple pin contacts 8 pass through multiple first pressure plate through holes 18 and multiple second pressure plate through holes 14 respectively. The pin diameter segment 20 is located in both the first pressure plate through hole 18 and the second pressure plate through hole 14. The pin protrusion ring 21 is located in the lower part of the first pressure plate through hole 18. A ring-shaped retaining spring 16 is provided between the lower outer wall of the pin diameter segment 20 and the hole wall of the first pressure plate through hole 18, and the upper part of the retaining spring 16 is pressed by the second insulating pressure plate 13. The pin contact 8 is electrically connected to the hole wall of the corresponding inner electrode through hole of the plate capacitor 25 through a ring-shaped claw spring 24.

[0026] like Figures 1-6 As shown, this utility model also discloses the following more optimized specific structures:

[0027] To achieve mechanical positioning of the components within the plug, the plug also includes a plug insulating mounting plate 28 installed inside the plug metal housing 7 and located below the plate capacitor 25, and an insulating sealing body 9 located above the second insulating pressure plate 13. Multiple pin contacts 8 pass through multiple corresponding through holes (not marked in the figure) on the plug insulating mounting plate 28 and multiple corresponding through holes (not marked in the figure) on the insulating sealing body 9. The upper part of the plug insulating mounting plate 28 protrudes outward to form a first convex ring 27. The inner circumferential wall of the plug metal housing 7 is aligned with the first convex ring 27. A first annular step (not marked in the figure) is provided at the corresponding position. A first convex ring 27 is located on the first annular step. The upper part of the first insulating pressure plate 19 protrudes outward to form a second convex ring 17. A second annular step (not marked in the figure) is provided on the inner circumference of the plug metal housing 7 at the position corresponding to the second convex ring 17. The second convex ring 17 is located on the second annular step. The lower part of the second insulating pressure plate 13 protrudes outward to form a third convex ring 15. The retaining ring 12 is installed inside the plug metal housing 7 and is located on the third convex ring 15.

[0028] To better protect the plate capacitor 25 and achieve better insulation, an upper insulating pad 22 is provided between the top of the plate capacitor 25 and the first insulating pressure plate 19, and the pin contact 8 passes through the corresponding through hole on the upper insulating pad 22. A lower insulating pad 26 is provided between the bottom of the plate capacitor 25 and the plug insulating mounting plate 28, and the pin contact 8 passes through the corresponding through hole on the lower insulating pad 26. An insulating sealing body 29 is provided below the plug insulating mounting plate 28, and the pin contact 8 passes through the corresponding through hole on the insulating sealing body 29.

[0029] In order to achieve mechanical positioning of the components inside the socket, and to achieve more electrical functions such as surge protection, the socket also includes a socket insulating mounting plate 39, a third insulating pressure plate 34, a printed circuit board 32, a conductive rubber ring 31, and a housing cover plate 3, which are installed inside the socket metal housing 5 and arranged from bottom to top. The upper part of the socket insulating mounting plate 39 protrudes outward to form a fourth convex ring 38. A third annular step (not marked in the figure) is provided on the inner circumference of the socket metal housing 5 at the position corresponding to the fourth convex ring 38. The fourth protruding ring 38 is located above the third annular step. The middle part of the socket contact 35 is provided with a socket protruding ring 37 protruding in the outer peripheral direction. The third insulating pressure plate 34 is provided with multiple third pressure plate through holes 33, and the lower diameter of each third pressure plate through hole 33 is increased to form a pressure plate groove (not marked in the figure). Multiple socket contacts 35 pass through multiple corresponding through holes (not marked in the figure) on the socket insulating mounting plate 39, multiple third pressure plate through holes 33 on the third insulating pressure plate 34, and corresponding through holes (not marked in the figure) on the printed circuit board 32. Multiple socket contacts 35 are electrically connected to the corresponding through-hole walls on the printed circuit board 32. Multiple socket protrusions 37 are placed in multiple pressure plate recesses. The housing cover 3 is installed on the upper end of the socket metal housing 5. The upper outer periphery of the housing cover 3 protrudes outward to form a cover plate protrusion 30, which is positioned above the upper end of the socket metal housing 5. Printed lines are provided on the upper surface of the printed circuit board 32 near the edge, and conductive rubber rings 31 are installed on them. Surge protection devices can be installed on the printed circuit board 32 as needed. Electrical components such as diodes extend downwards from the edge of the housing cover plate 3, with its lower end positioned above and in close contact with the conductive rubber ring 31 (its function is to connect one end of the electrical components on the printed circuit board 32, such as surge protection diodes, to the housing cover plate 3 and the socket metal housing 5 to achieve grounding). Multiple horizontal connecting screws 4 pass through multiple through holes on the socket metal housing 5 and are connected to multiple screw holes on the housing cover plate 3. The outer ends of multiple wires 1 pass through the corresponding through holes on the housing cover plate 3 and are positioned above the housing cover plate 3.

[0030] In order to enable the socket contact 35 to have a floating function during use, thereby achieving a smaller mating force, an annular elastic piece 36 is provided on the socket contact 35 above the corresponding through hole on the printed circuit board 32. Gaps are left between the socket contact 35 and the walls of the multiple corresponding through holes on the socket insulating mounting plate 39, between the socket contact 35 and the walls of the multiple third pressure plate through holes 33, and between the socket contact 35 and the bottom of the multiple pressure plate grooves.

[0031] For ease of assembly and application, the upper outer wall of the plug metal housing 7 is provided with a protruding plug housing flange 10, and the lower outer wall of the socket metal housing 5 is provided with a protruding socket housing flange 6. The lower inner wall of the socket housing flange 6 is provided with an annular groove (not marked in the figure). The plug housing flange 10 is placed in the annular groove. Multiple vertical locking screws (not visible in the figure) pass through multiple through holes 11 on the plug housing flange 10 from bottom to top and are connected to multiple screw holes (not visible in the figure) on the bottom of the annular groove.

[0032] In order to ensure that the plate capacitor 25 can be reliably grounded for a long time, a grounding spring 23 is installed between the outer circumference of the plate capacitor 25 and the inner circumference of the plug metal housing 7 and they are in close contact.

[0033] To facilitate application and ensure that the grounding spring 23 and the plate capacitor 25 are not misaligned, the grounding spring 23 is formed by bending a strip spring into a circular spring, and the lower (or upper) side of the grounding spring 23 is provided with a limiting flange 231 that protrudes inward.

[0034] Figure 1 , Figure 2 , Figure 5 and Figure 6 The image also shows an insulator 2, which is a conventional structure, installed on the housing cover plate 3 and used to insulate the conductor 1 from the housing cover plate 3.

[0035] like Figures 1-6As shown, in application, multiple pin contacts 8 are connected to the power supply or signal source that needs filtering, and the outer ends of multiple wires 1 are connected to the electrical equipment (not shown in the figure). The multiple pin contacts 8 are first filtered by the plate capacitor 25 to remove interference electromagnetic waves, and then provide relevant electrical signals to the electrical equipment through the multiple wires 1. When separation is required, the locking screw is removed to separate the plug metal housing 7 and the socket metal housing 5, which also separates the multiple pin contacts 8 from the multiple socket contacts 35, thus realizing the separation function of signal transmission. During the insertion and separation process between the pin contacts 8 and the socket contacts 35, because the pin contacts 8 and the socket contacts 35 have a floating function, the mutual force between them is small, the operation is relatively easy, and it is beneficial to the use of the product. If some components are damaged... If a component needs replacement or repair, such as a damaged plate capacitor 25 or a pin contact 8, first remove the insulating seal 9 and retaining ring 12. Then, remove the second insulating pressure plate 13, the first insulating pressure plate 19 (removing multiple pin contacts 8 simultaneously, and also removing the upper insulating pad 22 and plate capacitor 25), the upper insulating pad 22, the plate capacitor 25, the lower insulating pad 26, and the plug insulating mounting plate 28 in sequence. Then, insert a pin extractor into the inside of each retaining ring 16 to open the claw, allowing the corresponding pin contact 8 to be removed. The claw spring 24 has elastic contact with the corresponding pin contact 8, allowing the pin contact 8 to be removed directly from the plate capacitor 25. This enables quick disassembly of the relevant components. After repair or replacement, reassemble using the reverse process. The disassembly and assembly of the socket contact 35, printed circuit board 32, and related components are similar and will not be described again.

[0036] 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 floating-type filter electrical connector, comprising a plug and a socket, wherein the plug includes a plug metal housing and pin contacts and a plate capacitor mounted within the plug metal housing, wherein a plurality of vertically oriented pin contacts pass through a plurality of internal electrode through holes on a horizontally oriented plate capacitor, with the axial direction of the cylindrical plug metal housing as vertical; the socket includes a socket metal housing and socket contacts mounted within the socket metal housing, wherein the lower end of the socket metal housing is connected to the upper end of the plug metal housing, the upper ends of the plurality of pin contacts are respectively inserted into and connected to the lower ends of the plurality of socket contacts, and the upper ends of the plurality of socket contacts are respectively connected to a plurality of wires, characterized in that: The plug further includes a first insulating plate and a second insulating plate installed inside the plug's metal housing and sequentially located above the plate capacitor. The first insulating plate has multiple first insulating plate through holes, and the second insulating plate has multiple second insulating plate through holes. The diameter of the first insulating plate through holes is larger than the diameter of the second insulating plate through holes. The outer diameter of the middle section of the pin contact increases to form a large-diameter pin section. The lower part of the large-diameter pin section has a pin protrusion ring that protrudes outward in the circumferential direction. Multiple pin contacts pass through multiple first insulating plate through holes and multiple second insulating plate through holes respectively. The large-diameter pin section is located in both the first insulating plate through holes and the second insulating plate through holes. The pin protrusion ring is located in the lower part of the first insulating plate through hole. A ring-shaped retaining spring is provided between the lower outer wall of the large-diameter pin section and the hole wall of the first insulating plate through hole, and the upper part of the retaining spring is pressed by the second insulating plate. The pin contact is electrically connected to the hole wall of the corresponding inner electrode through hole of the plate capacitor through a ring-shaped claw spring.

2. The floating filter electrical connector according to claim 1, characterized in that: The plug also includes a plug insulating mounting plate installed inside the plug metal housing and located below the plate capacitor, and an insulating sealing body located above the second insulating pressure plate. Multiple pin contacts pass through multiple corresponding through holes on the plug insulating mounting plate and multiple corresponding through holes on the insulating sealing body. The upper part of the plug insulating mounting plate protrudes outward to form a first convex ring. A first annular step is provided on the inner circumference of the plug metal housing at a position corresponding to the first convex ring, with the first convex ring located above the first annular step. The upper part of the first insulating pressure plate protrudes outward to form a second convex ring. A second annular step is provided on the inner circumference of the plug metal housing at a position corresponding to the second convex ring, with the second convex ring located above the second annular step. The lower part of the second insulating pressure plate protrudes outward to form a third convex ring. A retaining ring is installed inside the plug metal housing and located above the third convex ring.

3. The floating filter electrical connector according to claim 2, characterized in that: An upper insulating pad is provided between the top of the plate capacitor and the first insulating pressure plate, and the pin contact passes through the corresponding through hole on the upper insulating pad. A lower insulating pad is provided between the bottom of the plate capacitor and the plug insulating mounting plate, and the pin contact passes through the corresponding through hole on the lower insulating pad. An insulating seal is provided below the plug insulating mounting plate, and the pin contact passes through the corresponding through hole on the insulating seal.

4. The floating filter electrical connector according to any one of claims 1-3, characterized in that: The socket further includes a socket insulating mounting plate, a third insulating pressure plate, a printed circuit board, a conductive rubber ring, and a housing cover plate, which are installed inside the socket metal housing and arranged sequentially from bottom to top. The upper part of the socket insulating mounting plate protrudes outward to form a fourth convex ring. A third annular step is provided on the inner circumference of the socket metal housing at a position corresponding to the fourth convex ring. The fourth convex ring is located above the third annular step. The middle part of the socket contact has a socket convex ring protruding outward. The third insulating pressure plate has multiple third pressure plate through holes, and the lower diameter of each third pressure plate through hole is increased to form a pressure plate groove. Multiple socket contacts pass through multiple corresponding through holes on the socket insulating mounting plate, multiple third pressure plate through holes on the third insulating pressure plate, and corresponding through holes on the printed circuit board. The socket contacts are electrically connected to the corresponding through-hole walls on the printed circuit board. Multiple socket protrusions are placed within multiple pressure plate recesses. The housing cover is installed on the upper end of the socket metal housing. The upper outer periphery of the housing cover protrudes outwards to form a cover ring, which is positioned above the upper end of the socket metal housing. Printed lines are provided near the edge of the printed circuit board, and a conductive rubber ring is installed on them. The housing cover extends downwards near the edge, with its lower end positioned above and in close contact with the conductive rubber ring. Multiple transverse connecting screws pass through multiple through-holes on the socket metal housing and connect to multiple screw holes on the housing cover. The outer ends of multiple wires pass through corresponding through-holes on the housing cover and are positioned above the housing cover.

5. The floating filter electrical connector according to claim 4, characterized in that: The socket contact is provided with an annular elastic piece above the corresponding through hole on the printed circuit board. Gaps are left between the socket contact and the walls of the corresponding through holes on the socket insulating mounting plate, between the socket contact and the walls of the through holes of the third pressure plate, and between the socket contact and the bottom of the grooves of the pressure plate.

6. The floating filter electrical connector according to any one of claims 1-3, characterized in that: The upper outer wall of the plug metal housing has a protruding plug housing flange, and the lower outer wall of the socket metal housing has a protruding socket housing flange. The lower inner wall of the socket housing flange has an annular groove. The plug housing flange is placed in the annular groove. Multiple vertical locking screws pass through multiple through holes on the plug housing flange from bottom to top and are connected to multiple screw holes on the bottom of the annular groove.

7. The floating filter electrical connector according to any one of claims 1-3, characterized in that: A grounding spring is installed between the outer circumference of the plate capacitor and the inner circumference of the plug metal housing, and they are in close contact.

8. The floating filter electrical connector according to claim 7, characterized in that: The grounding spring is formed by bending a strip spring into a circular spring, and the lower or upper side of the grounding spring is provided with a limiting flange that protrudes inward.

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